TWI423704B - Method and apparatus for battery management in a converged wireless transmit/receive unit - Google Patents
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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
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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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
- H04W52/02—Power saving arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
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- Y02D30/00—Reducing energy consumption in communication networks
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Description
本發明一般涉及無線通信系統。更具體地，本發明涉及在能夠通過多種無線電存取技術(RAT)運行的統合式無線發射/接收單元(WTRU)中的電源管理。The present invention generally relates to wireless communication systems. More specifically, the present invention relates to power management in a unified wireless transmit/receive unit (WTRU) capable of operating over a variety of radio access technologies (RATs).
統合式WTRU是能夠經由多種無線電存取技術(RAT)通信的移動設備。統合式WTRU提供豐富的服務，包括語音、對電子郵件和個人資訊的移動存取、網站流覽、音頻和視頻播放和串流傳輸、遊戲等。然而，經由多種RAT的通信需要很多的電量，從而導致統合式WTRU電池的快速耗盡。A unified WTRU is a mobile device capable of communicating via multiple radio access technologies (RATs). The integrated WTRU provides a rich set of services including voice, mobile access to email and personal information, website browsing, audio and video playback and streaming, gaming, and more. However, communication via multiple RATs requires a lot of power, resulting in a rapid drain of the integrated WTRU battery.
在統合式WTRU中，經由多種RAT的通信需要統合式WTRU以多種RAT中每一個來發送和接收。為了進一步解決該問題，統合式WTRU可具有多RF鏈，或者能夠同時經由多RAT進行通信。由於統合式WTRU通常是可擕式設備，所以不期望通過增加電池大小來滿足電量的需求。因此，最小化在統合式WTRU中電量的消耗是期盼的。In a unified WTRU, communication via multiple RATs requires a unified WTRU to transmit and receive in each of multiple RATs. To further address this issue, a unified WTRU may have multiple RF chains or be able to communicate via multiple RATs simultaneously. Since a unified WTRU is typically a portable device, it is not desirable to meet the demand for power by increasing the size of the battery. Therefore, minimizing the consumption of power in a unified WTRU is desirable.
在統合式WTRU中的所有元件中，收發機通常消耗最多的電量。因此，保存電量的最簡單方式是在不需要收發機時對其進行關閉或者降低其活躍性。這可通過將WTRU置於休眠狀態或不連續接收(DRX)模式來實現。不同的無線電存取技術(RAT)具有它們自己的省電機制，並且一般都考慮到上述兩種狀態(有時使用與以下不同的術語)。Of all the elements in a unified WTRU, the transceiver typically consumes the most amount of power. Therefore, the easiest way to conserve power is to turn it off or reduce its activity when the transceiver is not needed. This can be achieved by placing the WTRU in a sleep state or discontinuous reception (DRX) mode. Different radio access technologies (RATs) have their own power saving mechanisms, and generally consider the two states described above (sometimes different terms are used below).
第一狀態為喚醒狀態，其時WTRU的無線電開啟。在該狀態下，WTRU可以積極地發送或接收資料，或者WTRU可以處於省電模式，其產生用以監控無線電的流量，並且如果需要，其快速切換至資料的主動發送和接收。第二狀態為休眠狀態，其時WTRU的無線電被週期性關閉。WTRU間歇性喚醒以從網路接收資訊，例如在IEEE 802.11 RAT中的信標、在第三代合作夥伴計畫(3GPP)RAT中的導頻頻道(PCH)等。網路端可在緩衝器中保存定位至休眠WTRU的封包，並且在WTRU處於喚醒狀態時發送這些封包。The first state is an awake state when the WTRU's radio is turned on. In this state, the WTRU may actively transmit or receive data, or the WTRU may be in a power save mode that generates traffic to monitor the radio and, if needed, quickly switches to active transmission and reception of data. The second state is a dormant state when the WTRU's radio is periodically turned off. The WTRU intermittently wakes up to receive information from the network, such as beacons in IEEE 802.11 RATs, Pilot Channels (PCH) in Third Generation Partnership Projects (3GPP) RATs, and the like. The network may store packets destined for the dormant WTRU in the buffer and transmit the packets when the WTRU is in the awake state.
應注意的是，RAT協定對於給定技術定義了所需的和可選的電源管理模式。為了說明，在無線區域網路(WLAN)中，為了減少無線用戶端的電池消耗，用戶端無線電將在兩種狀態之間交替，包括：(1)啟動狀態，其間無線用戶端持續啟動性地發送和接收；和(2)省電狀態，在無線用戶端間歇地休眠時發生該狀態。It should be noted that the RAT protocol defines the required and optional power management modes for a given technology. To illustrate, in a wireless local area network (WLAN), in order to reduce the battery consumption of the wireless client, the client radio will alternate between two states, including: (1) an active state during which the wireless client continuously transmits initiatingly. And receiving; and (2) the power saving state, which occurs when the wireless client intermittently sleeps.
在基礎建設網路中的WLAN存取點跟蹤每一關聯WTRU的狀態。這些存取點將定向到處於休眠狀態的WTRU的流量進行緩衝。以固定的時間間隔，AP將發送TIM(流量指示映射)訊框，其指示哪個休眠WTRU緩衝了在存取點等待的流量。處於休眠狀態的WTRU將間歇性地啟動其接收機，並接收TIM。如果WTRU具有等待的流量，則其將發送封包交換(PS)輪詢訊框至AP。WTRU將等待流量，直至其被接收，或者AP將發送用以指示不存在緩衝的流量的另一TIM訊框。The WLAN access point in the infrastructure network tracks the status of each associated WTRU. These access points buffer the traffic directed to the WTRU in a dormant state. At a fixed time interval, the AP will send a TIM (Trend Indication Mapping) message indicating which of the dormant WTRUs buffered traffic waiting at the access point. The WTRU in a dormant state will intermittently start its receiver and receive the TIM. If the WTRU has waiting traffic, it will send a Packet Switched (PS) poll frame to the AP. The WTRU will wait for traffic until it is received, or the AP will send another TIM frame to indicate that there is no buffered traffic.
在全球移動電信系統(UMTS)技術中，WTRU可以處於 兩個基本狀態的任一種：空閒狀態或連接狀態。在空閒狀態下，WTRU正“處於胞元中”。然而，WTRU仍然能夠接收信令資訊，例如尋呼。WTRU將在空閒狀態下等待，直至建立無線電資源控制器(RRC)連接。在UMTS中限定了各種連接狀態模式，包括胞元專用頻道(CELL_DCH)、胞元前向存取頻道(CELL_FACH)、胞元尋呼頻道(CELL_PCH)和UMTS陸地無線電存取網路(UTRAN)登記區域尋呼頻道(URA_PCH)，其中每個模式具有可變幅度通信功能和省電效果。In the Global System for Mobile Telecommunications (UMTS) technology, the WTRU may be at Any of two basic states: idle state or connected state. In the idle state, the WTRU is "in cell". However, the WTRU is still able to receive signaling information, such as paging. The WTRU will wait in an idle state until a Radio Resource Controller (RRC) connection is established. Various connection state modes are defined in UMTS, including cell-specific channel (CELL_DCH), cell forward access channel (CELL_FACH), cell paging channel (CELL_PCH), and UMTS terrestrial radio access network (UTRAN) registration. Regional paging channel (URA_PCH), where each mode has a variable amplitude communication function and a power saving effect.
其他存取技術具有它們自己各自的電源管理狀態和模式。上述的WLAN和UMT電源模式僅是示例性的，不表示對本發明範圍的限制，其可應用于期望的任一無線電存取技術。Other access technologies have their own respective power management states and modes. The WLAN and UMT power modes described above are merely exemplary and are not meant to limit the scope of the invention, which can be applied to any desired radio access technology.
參照第1圖，在多RAT無線環境100中示出現有技術的統合式WTRU 110。各RAT(RAT1、RAT2、...、RANN)可用於經由它們各自協定的通信。統合式WTRU 110包括分別用於與每一RAT1 、RAT2 、...、RANN 通信的多個RAT處理單元1201 、1202 、...120N 。通過各個RAT電池管理單元1301 、1302 、...130N 控制每一RAT處理單元1201 、1202 、...120N 的電源狀態。這些RAT電池管理單元1301 、1302 、...130N 根據它們各自的RAT協定管理電源和資源。因此，統合式WTRU 110包括用以通過多RAT通信的功能和根據每一RAT協定和電源模式來管理電源和資源的功能。其他WTRU元件140包括各種其他元件和功能，包括顯示器、輸入設備、發射機等。 為了示出，當統合式WTRU 110使用RAT1 時，RAT1 處理單元1201 提供與其他WTRU元件140結合的RAT特定協定功能，同時RAT1 電池管理單元1301 管理電源資源和電源模式。Referring to FIG. 1, a prior art integrated WTRU 110 is shown in a multi-RAT wireless environment 100. Each RAT (RAT1, RAT2, ..., RANN) can be used for communication via their respective agreements. The unified WTRU 110 includes a plurality of RAT processing units 120 1 , 120 2 , ... 120 N for communicating with each RAT 1 , RAT 2 , ..., RAN N , respectively. The power states of each RAT processing unit 120 1 , 120 2 , ... 120 N are controlled by respective RAT battery management units 130 1 , 130 2 , ... 130 N . These RAT battery management units 130 1 , 130 2 , ... 130 N manage power and resources in accordance with their respective RAT protocols. Thus, integrated WTRU 110 includes functionality to communicate over multiple RATs and to manage power and resources in accordance with each RAT protocol and power mode. Other WTRU elements 140 include various other elements and functions, including displays, input devices, transmitters, and the like. To illustrate, when integrated WTRU 110 uses RAT 1 , RAT 1 processing unit 120 1 provides RAT-specific protocol functionality in conjunction with other WTRU elements 140, while RAT 1 battery management unit 130 1 manages power resources and power modes.
然而，由於每一RAT處理單元1201 、1202 、...120N 和關聯的RAT電池管理單元1301 、1302 、...130N 彼此獨立運行，所以統合式WTRU 110缺乏協調性。因此，失去了最小化電源消耗的機會。因此，期望一種方法和設備，以在統合式WTRU中協作多RAT電池管理。However, since each RAT processing unit 120 1 , 120 2 , ... 120 N and associated RAT battery management units 130 1 , 130 2 , ... 130 N operate independently of each other, the integrated WTRU 110 lacks coordination. Therefore, the opportunity to minimize power consumption is lost. Accordingly, a method and apparatus are desired for coordinating multi-RAT battery management in a unified WTRU.
本發明提供一種在統合式WTRU中用於最小化電源消耗的方法和設備。在較佳實施方式中，通過調節由統合式WTRU支持的各RAT的電池管理來最小化電源消耗。由統合式WTRU來使用調節的多RAT電池管理(CMRBM)單元，以最小化電源消耗。CMRBM單元監控由統合式WTRU支援的各RAT的各電源和鏈路度量，並調節統合式WTRU的電源狀態。The present invention provides a method and apparatus for minimizing power consumption in a unified WTRU. In a preferred embodiment, power consumption is minimized by adjusting battery management of each RAT supported by the integrated WTRU. The conditioned multi-RAT battery management (CMRBM) unit is used by the integrated WTRU to minimize power consumption. The CMRBM unit monitors the power and link metrics for each RAT supported by the integrated WTRU and adjusts the power state of the integrated WTRU.
雖然本發明的特徵和元件在較佳的實施方式中以特定的結合進行了描述，但每個特徵或元件可以(在沒有所述較佳實施方式的其他特徵和元件的情況下)單獨使用，或在與或不與本發明的其他特徵和元件結合的各種情況下使用。Although the features and elements of the present invention are described in a particular combination in the preferred embodiments, each feature or element can be used alone (without other features and elements of the preferred embodiments). Or used in various situations with or without other features and elements of the invention.
如其中所使用的，WTRU包括但不限於使用者設備(UE)、移動站、固定或移動使用者單元、尋呼機或能夠在無線環境中運行的任何其他類型的設備。As used herein, a WTRU includes, but is not limited to, a User Equipment (UE), a mobile station, a fixed or mobile subscriber unit, a pager, or any other type of device capable of operating in a wireless environment.
第2圖示出包括CMRBM單元220的統合式WTRU 210。CMRBM單元220調節各RAT電池管理單元2301 、2302 、...230N (以下共同使用元件符號230)，這些RAT電池管理單元輪流控制每一RAT處理單元2401 、2402 、...240N (以下共同使用元件符號240)的電源和資源管理。多RAT無線通信環境包括：RAT1 、RAT2 、...RATN (通過實例可以為這些，但是不限於本發明的範圍)，整合封包無線電服務技術(GPRS)網路，通用移動電信(UMTS)網路，全球移動通信(GSM)網路，GSM增強資料率的GSM演進(EDGE)無線存取網(GERAN)和無線區域網路(WLAN)，例如IEEE 802.11x相容網。統合式WTRU 210包括其他WTRU元件250，其可包括收發機、記憶體、顯示器等。FIG. 2 shows a unified WTRU 210 that includes a CMRBM unit 220. CMRBM adjust unit 220 of each RAT battery management unit 230 1 and 230 2, ... 230 N (the symbols used in common element 230), which in turn RAT battery management unit controls each RAT processing unit 2401, 2402, ... Power and resource management for 240 N (followed by component symbol 240). The multi-RAT wireless communication environment includes: RAT 1 , RAT 2 , ... RAT N (which may be by way of example, but not limited to the scope of the present invention), Integrated Packet Radio Service Technology (GPRS) network, Universal Mobile Telecommunications (UMTS) Network, Global System for Mobile Communications (GSM) networks, GSM Enhanced Data Rate (GSM) Radio Access Network (GERAN) and Wireless Local Area Network (WLAN), such as IEEE 802.11x compatible networks. The unified WTRU 210 includes other WTRU elements 250, which may include transceivers, memory, displays, and the like.
CMRBM單元220調節統合式WTRU 210的各RAT電池管理單元2401 、2402 、...240N 。為了實現該操作，較佳地由CMRBM單元220使用三種通用電源狀態。第一電源狀態為喚醒狀態。在喚醒狀態下，統合式WTRU 210主動地發送和/或接收資料。CMRBM喚醒狀態類似於上述WLAN啟動狀態和UMTS連接狀態。第二電源狀態為休眠狀態。在休眠狀態下，RAT以降低功能性和減少電源消耗的方式運行，典型地僅週期性開啟。休眠電源狀態類似於上述的UMTS空閒狀態。第三電源狀態為關閉狀態。在關閉狀態下，RAT被完全關閉電源，並且不週期性發送或接收通信。The CMRBM unit 220 regulates each of the RAT battery management units 240 1 , 240 2 , . . . , 240 N of the integrated WTRU 210. To achieve this, three general power states are preferably used by CMRBM unit 220. The first power state is an awake state. In the awake state, the integrated WTRU 210 actively transmits and/or receives data. The CMRBM wake-up state is similar to the WLAN boot state and the UMTS connection state described above. The second power state is a sleep state. In the sleep state, the RAT operates in a manner that reduces functionality and reduces power consumption, typically only periodically. The sleep power state is similar to the UMTS idle state described above. The third power state is off. In the off state, the RAT is completely powered off and does not periodically transmit or receive communications.
參照第3圖，示出由用以控制RAT電池管理單元的第2圖的統合式WTRU 210的CMRBM單元220所使用的狀態機300。在關閉狀態310中，完全關閉給定RAT處理單元。在開啟狀態320，啟動給定RAT處理單元，並且至少RAT處理單元為部分可運行的。啟動狀態320還包括喚醒模式330和休眠模式340。在喚醒模式330下，RAT處理單元完全可運行，並且甚至可主動地發送資料至網路或從網路接收資料。在休眠模式340下，RAT處理單元以降低功能性的方式運行。典型地，在休眠模式340下，如上所述，RAT處理單元將週期性關閉其收發機，並減少控制訊息傳輸。Referring to Figure 3, a state machine 300 for use by the CMRBM unit 220 of the integrated WTRU 210 of Figure 2 to control the RAT battery management unit is shown. In the off state 310, the given RAT processing unit is completely shut down. In the on state 320, a given RAT processing unit is started and at least the RAT processing unit is partially operational. The startup state 320 also includes an awake mode 330 and a sleep mode 340. In wake mode 330, the RAT processing unit is fully operational and can even actively send data to or receive data from the network. In sleep mode 340, the RAT processing unit operates in a reduced functionality manner. Typically, in sleep mode 340, as described above, the RAT processing unit will periodically turn off its transceiver and reduce control message transmission.
應注意的是，CMRBM單元220電源狀態是在調節多RAT電池管理時使用的一般性電源狀態。給定的RAT協定可定義多種子狀態或給定CMRBM電源狀態的模式。例如，在UMTS存取技術中的啟動狀態包括至少四個子狀態(如上所述URA_PCH、CELL_DCH、CELL_PCH和CELL_FACH)。在CMRBM單元220正常調節電池管理時，根據其各自的RAT協定由RAT電池管理單元最終確定由RAT電池管理單元所選擇的特定子狀態。這不限於喚醒模式330，並且包括CMRBM休眠模式340，以及對於各RAT協定特定的各種其他電源管理細節。It should be noted that the CMRBM unit 220 power state is a general power state that is used when adjusting multi-RAT battery management. A given RAT agreement may define multiple sub-states or modes that give a CMRBM power state. For example, the startup state in the UMTS access technology includes at least four sub-states (URA_PCH, CELL_DCH, CELL_PCH, and CELL_FACH as described above). When the CMRBM unit 220 normally regulates battery management, the particular sub-state selected by the RAT battery management unit is ultimately determined by the RAT battery management unit in accordance with its respective RAT agreement. This is not limited to wake mode 330 and includes CMRBM sleep mode 340, as well as various other power management details specific to each RAT protocol.
仍參照第3圖，由虛線表示狀態改變。RAT電池管理單元可以通過接收狀態改變請求從關閉狀態310改變為開啟狀態320，反之亦然。在開啟狀態時，RAT電池管理單元可以通過狀態改變請求的方式在喚醒模式330和休眠模式340之間選擇。可替換地，RAT電池管理單元可以基於其各自RAT協定和電池管理結構單方面改變其狀態或模式。Still referring to Fig. 3, the state change is indicated by a broken line. The RAT battery management unit can change from the off state 310 to the on state 320 by receiving a state change request, and vice versa. In the on state, the RAT battery management unit can select between the awake mode 330 and the sleep mode 340 by way of a state change request. Alternatively, the RAT battery management unit may unilaterally change its state or mode based on its respective RAT agreement and battery management structure.
再參照第2圖，CMRBM單元220較佳地通過以下表1中的實例的詳細傳送訊息原語來與統合式WTRU 210的各RAT電池管理單元2401 、2402 、...240N 通信。也可以使用其他原語，並且以下討論的原語根據需要可包含除了在說明書中清楚引用的其他附加資訊元件。Referring again to FIG. 2, CMRBM unit 220 preferably communicates with each of RAT battery management units 240 1 , 240 2 , . . . , 240 N of integrated WTRU 210 by the detailed transport message primitives of the examples in Table 1 below. Other primitives may also be used, and the primitives discussed below may include other additional information elements in addition to those explicitly recited in the specification as needed.
第4圖為在第2圖的統合式WTRU中用以調節多RAT電池管理的方法的流程圖400。CMRBM單元220監控在統合式WTRU 210中包含的各RAT電池管理單元2401、2402、...240N以及RAT各種信號和鏈結度量(步驟410)。基於該監控，CMRBM單元220確定是否期望對任一RAT電池管理單元進行狀態改變或模式改變(步驟420)。該確定可基於用以最小化統合式WTRU 220的電池電源的任一原理。例如，當不存在對於給定RAT(例如RAT1 )可用網路時，期望將相應的RAT電池管理單元2301 和RAT處理單元2401 置於關閉模式，以保存能量。同樣，如果網路變為可用，則然後RAT電池管理單元2301 和RAT處理單元2401 可置於開啟狀態。可替換地，當統合式WTRU 210感測到較低電源功率水準時，預定RAT處理單元可持久地或週期性地被置於關閉模式，以保存電池能量。4 is a flow chart 400 of a method for adjusting multi-RAT battery management in the integrated WTRU of FIG. The CMRBM unit 220 monitors the various RAT battery management units 2401, 2402, ... 240N and RAT various signal and link metrics included in the integrated WTRU 210 (step 410). Based on this monitoring, CMRBM unit 220 determines if a state change or mode change is desired for any of the RAT battery management units (step 420). This determination may be based on any of the principles used to minimize the battery power of the integrated WTRU 220. For example, when there is no network available for a given RAT (e.g., RAT 1 ), it is desirable to place the respective RAT battery management unit 230 1 and RAT processing unit 240 1 in an off mode to conserve energy. Likewise, if the network becomes available, then RAT battery management unit 230 1 and RAT processing unit 240 1 can be placed in an on state. Alternatively, when the integrated WTRU 210 senses a lower power level, the predetermined RAT processing unit may be placed in an off mode permanently or periodically to conserve battery power.
可替換地，統合式WTRU 210的使用者可配置CMRBM單元220，以根據需要調節電源模式和狀態。可替換地，CMRBM單元220可請求RAT電池管理單元230的狀態從休眠模式改變為喚醒模式，或者當即將切換至該RAT時，其基於其各自的電源管理協定拒絕RAT電池管理單元230改變為休眠模式，以下將參照第6圖更詳細描述。CMRBM可利用鏈路品質度量以影響任一RAT的狀態改變。例如，當WTRU 210被連接至多個RAT，並且在這些RAT上鏈路品質較好，則CMRBM可請求RAT改變其狀態為休眠模式，或進行相反操作。Alternatively, the user of the integrated WTRU 210 can configure the CMRBM unit 220 to adjust the power mode and status as needed. Alternatively, the CMRBM unit 220 may request that the state of the RAT battery management unit 230 be changed from the sleep mode to the awake mode, or when it is about to switch to the RAT, it rejects the RAT battery management unit 230 to change to sleep based on its respective power management protocol. The mode will be described in more detail below with reference to FIG. The CMRBM can utilize link quality metrics to affect the state changes of either RAT. For example, when the WTRU 210 is connected to multiple RATs and the link quality is good on these RATs, the CMRBM may request the RAT to change its state to sleep mode, or vice versa.
在CMRBM單元220確定在步驟420中需要狀態改變或模式改變的情況下，CMRBM單元220請求RAT電池管理單元230進行狀態改變或模式改變(步驟430)。較佳地，CMRBM單元220使用在上述表1中定義的原語請求狀態改變。具體地，CMRBM單元220發送“狀態改變請求”訊息至被請求改變狀態或模式的RAT電池管理單元230。在接收到狀態改變請求時，RAT電池管理單元230基於其RAT特定協定指示其將符合該請求，並較佳地發送“狀態改變指示”訊息以確認其當前狀態(步驟440)。In the event that CMRBM unit 220 determines that a state change or mode change is required in step 420, CMRBM unit 220 requests RAT battery management unit 230 to make a state change or mode change (step 430). Preferably, CMRBM unit 220 requests a state change using the primitives defined in Table 1 above. Specifically, the CMRBM unit 220 transmits a "status change request" message to the RAT battery management unit 230 that is requested to change the state or mode. Upon receiving the status change request, RAT battery management unit 230 indicates that it will comply with the request based on its RAT-specific agreement, and preferably sends a "status change indication" message to confirm its current status (step 440).
應注意的是，當特定RAT改變模式(例如從喚醒模式至休眠模式，或相反)時，典型地，通知網路這種模式改變或狀態改變，從而可通過網路對定位至統合式WTRU 210的流量進行緩衝存儲，如上所述，或者由於其他原因。利用將電源模式與網路同步的RAT特定協定，以實現該處理。It should be noted that when a particular RAT changes mode (eg, from awake mode to sleep mode, or vice versa), this mode change or state change is typically notified to the network so that it can be located through the network pair to the integrated WTRU 210. The traffic is buffered as described above, or for other reasons. This process is implemented using a RAT-specific protocol that synchronizes the power mode with the network.
如果在步驟420，CMRBM單元220不期望狀態改變，則確定任一RAT電池管理單元230是否期望狀態改變(步驟450)。RAT電池管理單元230可基於RAT特定協定作出關於該狀態的獨立判斷。如果沒有RAT電池管理單元230期望狀態改變，則該方法返回步驟410以進一步監控。如果RAT電池管理單元230期望狀態改變，則RAT電池管理單元230請求來自CMRBM單元220的對於狀態改變的許可(步驟460)。較佳地，如上述表1中的描述，該請求為“狀態資訊請求”原語。在接收到狀態改變請求時，CMRBM單元220確定是否准許狀態改變請求，並相應地用信號通知該請求的RAT電池管理單元230(步驟470)。較佳地，CMRBM單元220使用如上述表1中的“狀態資訊回應”訊息來用信號通知該請求的RAT電池管理單元230。應注意的是，CMRBM單元220可以准許或不准許所請求的狀態改變，而請求的RAT電池管理單元230可繼續狀態改變，而不考慮CMRBM單元220准許的許可或者拒絕。If, at step 420, the CMRBM unit 220 does not expect a state change, it is determined if any of the RAT battery management units 230 desire a state change (step 450). The RAT battery management unit 230 can make independent determinations regarding the status based on the RAT specific agreement. If no RAT battery management unit 230 desires a state change, then the method returns to step 410 for further monitoring. If the RAT battery management unit 230 desires a state change, the RAT battery management unit 230 requests permission from the CMRBM unit 220 for a state change (step 460). Preferably, the request is a "status information request" primitive as described in Table 1 above. Upon receiving the status change request, the CMRBM unit 220 determines whether to grant the status change request and signals the requested RAT battery management unit 230 accordingly (step 470). Preferably, the CMRBM unit 220 signals the requested RAT battery management unit 230 using the "Status Information Response" message as in Table 1 above. It should be noted that the CMRBM unit 220 may or may not permit the requested state change, and the requested RAT battery management unit 230 may continue with the state change regardless of the permission or rejection permitted by the CMRBM unit 220.
在另一實施方式中，參照第5圖，示出使用配置報告用以調節統合式WTRU 210中的多RAT電池管理的方法的流程圖500。當統合式WTRU 210開啟時(步驟510)，每一RAT電池管理單元230通知CMRBM單元220其各自的電池管理配置(步驟520)。較佳地，RAT電池管理單元230向CMRBM單元220發送如上述表1中定義的“配置報告”訊息。應注意的是，典型地，由特定RAT協定來規定初始電池管理配置。接下來，CMRBM單元220編譯該報告，並確定是否需要請求任一RAT電池管理單元230進行狀態改變，從而能量消耗最小化(步驟530)。如果CMRBM單元210確定不需要狀態改變(亦即，統合式WTRU 210當前以最佳電源配置的狀態運行)，則該方法前進至步驟550。如果另一方面，CMRBM單元220確定期望狀態改變(即，統合式WTRU 210可更有效配置)，則CMRBM單元220請求RAT電池管理單元230進行狀態改變(步驟540)。較佳地，該請求處於如上述表1所定義的“配置請求”訊息的形式。然後，請求改變狀態的RAT電池管理單元230可根據其自身特定RAT協定確定是否進行狀態改變。在下一配置報告中，將由RAT電池管理單元230指示所選擇的狀態。可選地，各RAT電池管理單元230週期性重複配置報告(步驟550)。該週期性報告可以以固定時間間隔進行，或者可基於使用者控制或CMRBM單元220動態調整。In another embodiment, referring to FIG. 5, a flow diagram 500 of a method for adjusting multi-RAT battery management in a unified WTRU 210 using a configuration report is shown. When the integrated WTRU 210 is turned on (step 510), each RAT battery management unit 230 notifies the CMRBM unit 220 of its respective battery management configuration (step 520). Preferably, the RAT battery management unit 230 transmits a "Configuration Report" message as defined in Table 1 above to the CMRBM unit 220. It should be noted that the initial battery management configuration is typically specified by a particular RAT agreement. Next, the CMRBM unit 220 compiles the report and determines if any of the RAT battery management units 230 need to be requested to make a state change, thereby minimizing energy consumption (step 530). If CMRBM unit 210 determines that a state change is not required (i.e., the integrated WTRU 210 is currently operating in an optimal power configuration state), then the method proceeds to step 550. If, on the other hand, the CMRBM unit 220 determines that the desired state change (ie, the integrated WTRU 210 may be more efficiently configured), the CMRBM unit 220 requests the RAT battery management unit 230 to make a state change (step 540). Preferably, the request is in the form of a "Configuration Request" message as defined in Table 1 above. Then, the RAT battery management unit 230 requesting the change state can determine whether to make a state change according to its own specific RAT agreement. In the next configuration report, the selected state will be indicated by the RAT battery management unit 230. Optionally, each RAT battery management unit 230 periodically repeats the configuration report (step 550). The periodic report may be performed at fixed time intervals or may be dynamically adjusted based on user control or CMRBM unit 220.
除了參照第4圖和第5圖所述的方法之外，CMRBM單元220可請求RAT電池管理單元230完全關閉電源，從而關閉其各自RAT處理單元240。較佳地，通過發送如上述表1所定義的“關閉請求”訊息來實現該處理。同樣地，CMRBM單元220可請求處於電源關閉狀態的RAT電池管理單元230開啟。較佳地，通過發送如上述表1所定義的“開啟請求”訊息來實現該處理。統合式WTRU 210可以對RAT電池管理單元230供電，從而相應的RAT處理單元240在各種情況下開啟或關閉，以保存電量。例如，在不存在掃描的網路的情況下，當電源低於預定門檻值時，或者當使用者在預定量時間內不使用特定RAT網路時，CMRBM單元220可關閉RAT電池管理單元230和相應的RAT處理單元240。In addition to the methods described with reference to FIGS. 4 and 5, the CMRBM unit 220 may request the RAT battery management unit 230 to completely turn off the power, thereby turning off its respective RAT processing unit 240. Preferably, the process is implemented by transmitting a "shutdown request" message as defined in Table 1 above. Likewise, the CMRBM unit 220 can request that the RAT battery management unit 230 in the power off state be turned on. Preferably, the process is implemented by transmitting an "open request" message as defined in Table 1 above. The integrated WTRU 210 may power the RAT battery management unit 230 such that the respective RAT processing unit 240 is turned "on" or "off" in various situations to conserve power. For example, in the absence of a scanned network, when the power supply is below a predetermined threshold, or when the user does not use a particular RAT network for a predetermined amount of time, the CMRBM unit 220 may turn off the RAT battery management unit 230 and A corresponding RAT processing unit 240.
在另一實施方式中，CMRBM單元220提供在RAT之間的切換期間的對統合式WTRU 210的有效電源管理的各種存取技術。在該實施方式中，參照第6圖，CMRBM單元220結合統合式WTRU 210的RAT之間的切換策略功能運行，以通過減少切換延遲來提高RAT之間的切換的執行。統合式WTRU 210的CMRBM單元220監控各RAT電池管理單元230和RAT信號品質和電源管理度量(步驟610)。基於統合式WTRU 210的RAT之間的切換測量，確定是否期望RAT之間的切換(步驟620)。例如，可期望從具有較低或減少的鏈路品質的RAT網路轉換啟動會話至具有較強或改善鏈路品質的RAT網路。當在步驟620中確定期望切換時，然後確定目標RAT處理單元240是否處於喚醒狀態(步驟630)。如果目標RAT處理單元不處於喚醒狀態，則CMRBM單元220用信號通知目標RAT電池管理單元230，以將目標RAT處理單元240置於適當的喚醒狀態，以用於切換(步驟640)。這可以通過參照第4圖和第5圖的上述方法來實現(即各RAT信號通知或配置報告)。然後，目標RAT處理單元處於喚醒狀態，統合式WTRU 210執行RAT之間的切換(步驟650)。最後，CMRBM單元220用信號通知在統合式WTRU 210中的各RAT電池管理單元230，從而實現最小電源消耗配置(步驟660)。In another embodiment, CMRBM unit 220 provides various access techniques for efficient power management of integrated WTRU 210 during handover between RATs. In this embodiment, referring to FIG. 6, CMRBM unit 220 operates in conjunction with a handover policy function between RATs of integrated WTRU 210 to improve execution of handovers between RATs by reducing handover delay. The CMRBM unit 220 of the integrated WTRU 210 monitors each RAT battery management unit 230 and RAT signal quality and power management metrics (step 610). Based on handover measurements between RATs of the integrated WTRU 210, it is determined whether a handover between RATs is desired (step 620). For example, it may be desirable to switch a boot session from a RAT network with a lower or reduced link quality to a RAT network with stronger or improved link quality. When it is determined in step 620 that the handover is desired, then it is determined if the target RAT processing unit 240 is in the awake state (step 630). If the target RAT processing unit is not in the awake state, the CMRBM unit 220 signals the target RAT battery management unit 230 to place the target RAT processing unit 240 in an appropriate awake state for handover (step 640). This can be achieved by referring to the above methods of FIGS. 4 and 5 (ie, each RAT signaling or configuration report). The target RAT processing unit is then in an awake state and the unified WTRU 210 performs a handover between RATs (step 650). Finally, CMRBM unit 220 signals each RAT battery management unit 230 in integrated WTRU 210 to achieve a minimum power consumption configuration (step 660).
例如，當使用第一RAT處理單元2401 將統合式WTRU 210處於啟動狀態時，但是CMRBM單元220感測出鏈路品質降低(即指示切換的預定標準)，則CMRBM單元220請求第二RAT電池管理單元2302 ，或者多個其他RAT電池管理單元2302 、...230N ，和當前處於休眠狀態的相應的RAT處理單元2401 、2402 、...240N ，以改變為喚醒狀態。CMRBM單元220可選擇具有最好鏈路品質的RAT處理單元2402 、...240N ，或最適合於處理使用第一RAT處理單元2401 發送的流量類型的RAT處理單元2402 、...240N 。以這樣的方式，切換目標RAT處於喚醒狀態，並準備接收流量，從而使延遲切換達最小。For example, when using the first RAT system to the processing unit 2401 Jog WTRU 210 is active, but CMRBM unit 220 senses the decreased link quality (i.e., the predetermined criterion indicating handover), the second RAT request CMRBM cell unit 220 Management unit 230 2 , or a plurality of other RAT battery management units 230 2 , . . . 230 N , and corresponding RAT processing units 240 1 , 240 2 , . . . , 240 N currently in a sleep state to change to an awake state . CMRBM unit 220 may select the best link quality RAT processing unit 240 2, ... 240 N, or a most suitable for treatment using the first RAT processing unit 2401 transmits the traffic type of RAT processing unit 2402, .. .240 N . In this manner, the handover target RAT is in an awake state and is ready to receive traffic, thereby minimizing delay switching.
實施例Example
1．一種在能夠通過多個無線電存取技術(RAT)進行發送和接收的統合式無線發射/接收單元(WTRU)中用於最小化電源消耗的方法，該方法包括：提供多個RAT特定電池管理單元給所述WTRU的多個RAT的每個。1. A method for minimizing power consumption in a unified wireless transmit/receive unit (WTRU) capable of transmitting and receiving over multiple radio access technologies (RATs), the method comprising: providing a plurality of RAT-specific battery management units Each of the plurality of RATs of the WTRU.
2．如實施例1所述的方法，還包括：監控多個RAT電池管理單元的電源配置。2. The method of embodiment 1, further comprising: monitoring a power configuration of the plurality of RAT battery management units.
3．如實施例2所述的方法，還包括：確定是否期望電源狀態改變。3. The method of embodiment 2, further comprising: determining if a power state change is desired.
4．如實施例3所述的方法，其中期望電源狀態改變是為了最小化WTRU的電源消耗。4. The method of embodiment 3 wherein the power state change is desired to minimize power consumption of the WTRU.
5．如實施例1所述的方法，還包括：基於確定結果請求RAT電池管理的電源狀態改變。5. The method of embodiment 1, further comprising requesting a power state change of the RAT battery management based on the determination result.
6．如實施例5所述的方法，還包括：在RAT電池管理單元接收電源狀態改變請求。6. The method of embodiment 5, further comprising receiving a power state change request at the RAT battery management unit.
7．如實施例6所述的方法，還包括：基於RAT電池管理單元的電池管理協定，在RAT電池管理單元確定是否實施所請求的電源狀態改變。7. The method of embodiment 6, further comprising determining, based on a battery management agreement of the RAT battery management unit, whether the requested power state change is implemented at the RAT battery management unit.
8．如實施例5-7中任一所述的方法，還包括：RAT電池管理單元用電源狀態改變請求指示其滿足條件。8. The method of any of embodiments 5-7, further comprising the RAT battery management unit indicating that the condition is met with the power state change request.
9．如實施例3-8中任一所述的方法，其中還基於鏈路品質度量確定是否期望電源狀態改變。9. The method of any of embodiments 3-8, wherein determining whether a power state change is desired is also based on a link quality metric.
10．如實施例9所述的方法，其中如果RAT的鏈路品質度量低於預定門檻值，則請求在與該RAT關聯的RAT電池管理單元的電源狀態的改變。10. The method of embodiment 9, wherein if the link quality metric of the RAT is below a predetermined threshold, then a change in power state of the RAT battery management unit associated with the RAT is requested.
11．如實施例3-10中任一所述的方法，還包括：每一RAT電池管理單元報告其電源管理配置，其中基於該報告確定是否期望電源狀態改變。11. The method of any of embodiments 3-10, further comprising: each RAT battery management unit reporting its power management configuration, wherein determining whether a power state change is desired is based on the report.
12．如實施例11所述的方法，其中通過每一RAT電池管理單元週期性重複報告。12. The method of embodiment 11 wherein the reporting is repeated periodically by each RAT battery management unit.
13．如任一先前實施例中所述的方法，還包括：在每一RAT電池管理單元確定是否期望電源狀態改變；和當確定結果為肯定時，請求對改變電源狀態的許可。13. The method as in any of the preceding embodiments, further comprising: determining, at each RAT battery management unit, whether a power state change is desired; and when the determination is positive, requesting permission to change the power state.
14.如實施例13所述的方法，其中在接收到許可時，在期望狀態改變的RAT電池管理單元進行電源狀態改變。14. The method of embodiment 13 wherein the RAT battery management unit that is in a desired state change performs a power state change upon receipt of the license.
15.如實施例3-14中任一所述的方法，其中基於使用者偏好確定是否需要電源狀態改變。The method of any of embodiments 3-14, wherein determining whether a power state change is required is based on user preferences.
16.如實施例3-15中任一所述的方法，其中基於多個RAT的資料率確定是否需要電源狀態改變。The method of any of embodiments 3-15, wherein determining whether a power state change is required is based on a data rate of the plurality of RATs.
17.如實施例3-16中任一所述的方法，其中基於統合式WTRU的內部RAT切換策略確定是否需要電源狀態改變。17. The method of any of embodiments 3-16, wherein determining whether a power state change is required is based on an integrated WTRU's internal RAT handover policy.
18.一種統合式無線發射/接收單元(WTRU)，包括：收發機；和多個無線電存取技術(RAT)處理單元，每一RAT處理單元與配置的收發機結合，以通過不同的RAT發送和接收。18. A unified wireless transmit/receive unit (WTRU) comprising: a transceiver; and a plurality of radio access technology (RAT) processing units, each RAT processing unit coupled with a configured transceiver for transmitting over a different RAT And receiving.
19.如實施例18所述的WTRU，還包括：多個RAT電池管理單元，對於每一RAT處理單元都有一個。19. The WTRU of embodiment 18, further comprising: a plurality of RAT battery management units, one for each RAT processing unit.
20.如實施例19所述的WTRU，其中多個RAT電池管理單元中的每一個被配置以控制各RAT處理單元的電源狀態。20. The WTRU of embodiment 19 wherein each of the plurality of RAT battery management units is configured to control a power state of each RAT processing unit.
21.如實施例18-20中任一所述的WTRU，還包括：調節的多RAT電池管理(CMRBM)單元，被配置以調節所述多個RAT電池管理的每一個，以最小化電源消耗。21. The WTRU of any of embodiments 18-20, further comprising: an adjusted multi-RAT battery management (CMRBM) unit configured to adjust each of the plurality of RAT battery management to minimize power consumption .
22.如實施例21所述的WTRU，其中CMRBM單元被配置以：監控多個RAT電池管理單元的電源配置。22. The WTRU of embodiment 21 wherein the CMRBM unit is configured to: monitor power configurations of the plurality of RAT battery management units.
23.如實施例22所述的WTRU，其中CMRBM單元還被配置以：23. The WTRU of embodiment 22 wherein the CMRBM unit is further configured to:
基於所述監控確定是否期望電源狀態改變，以最小化WTRU的電源消耗。A determination is made as to whether a power state change is desired based on the monitoring to minimize power consumption of the WTRU.
24.如實施例23所述的WTRU，其中CMRBM單元還被配置以：基於確定結果請求RAT電池管理的電源狀態改變。24. The WTRU of embodiment 23 wherein the CMRBM unit is further configured to request a power state change of the RAT battery management based on the determination.
25.如實施例21-24中任一所述的WTRU，其中每一RAT電池管理單元被配置以從CMRBM單元接收電源狀態改變請求。The WTRU of any of embodiments 21-24, wherein each RAT battery management unit is configured to receive a power state change request from the CMRBM unit.
26.如實施例25所述的WTRU，其中每一RAT電池管理單元還被配置以基於RAT電池管理單元的協定確定是否實施所請求的電源狀態改變。26. The WTRU of embodiment 25 wherein each RAT battery management unit is further configured to determine whether to implement the requested power state change based on an agreement of the RAT battery management unit.
27.如實施例25或26所述的WTRU，其中每一RAT電池管理單元還被配置以用對該CMRBM單元的該電源狀態改變請求表示其滿足條件。27. The WTRU of embodiment 25 or 26, wherein each RAT battery management unit is further configured to indicate that the power state change request to the CMRBM unit satisfies a condition.
28.如實施例21-24中任一所述的WTRU，其中CMRBM單元還被配置以基於鏈路品質度量確定是否期望電源狀態改變。The WTRU of any of embodiments 21-24, wherein the CMRBM unit is further configured to determine whether a power state change is desired based on a link quality metric.
29.如實施例21-24或28中任一所述的WTRU，其中CMRBM單元還被配置以在RAT的鏈路品質度量低於預定門檻值時，則請求在給定RAT電池管理單元的電源狀態的改變。The WTRU of any of embodiments 21-24 or 28, wherein the CMRBM unit is further configured to request power to the battery management unit at a given RAT when the link quality metric of the RAT is below a predetermined threshold Change of state.
30.如實施例21-24或28-29中任一所述的WTRU，其中CMRBM單元還被配置以基於該報告確定是否期望電源狀態改變。The WTRU of any of embodiments 21-24 or 28-29, wherein the CMRBM unit is further configured to determine whether a power state change is desired based on the report.
31.如實施例25-27中任一所述的WTRU，其中每一RAT電池管理單元還被配置以報告其電源管理配置。The WTRU of any of embodiments 25-27, wherein each RAT battery management unit is further configured to report its power management configuration.
32.如實施例31所述的WTRU，其中該報告被週期性重複。32. The WTRU as in embodiment 31 wherein the report is periodically repeated.
33.如實施例25-27或31-32中任一所述的WTRU，其中每一RAT電池管理單元還被配置以：確定是否期望電源狀態改變。The WTRU of any of embodiments 25-27 or 31-32, wherein each RAT battery management unit is further configured to: determine if a power state change is desired.
34.如實施例25-27或31-33中任一所述的WTRU，其中每一RAT電池管理單元還被配置以：當確定結果為肯定時，請求來自CMRBM單元的對改變電源狀態的許可。The WTRU as in any one of embodiments 25-27 or 31-33, wherein each RAT battery management unit is further configured to: request permission from the CMRBM unit to change the power state when the determination is positive .
RAT．．．無線電存取技術RAT. . . Radio access technology
WTRU．．．無線發射/接收單元WTRU. . . Wireless transmitting/receiving unit
從以下關於較佳實施方式的描述中可以更詳細地瞭解本發明，這些較佳實施例是作為實例給出的，並且是結合附圖而被理解的，其中：The invention will be understood in more detail in the following description of the preferred embodiments, which are given by way of example
第1圖示出在統合式WTRU中的傳統電池管理；Figure 1 illustrates traditional battery management in a unified WTRU;
第2圖示出根據本發明較佳實施方式的包括調節多RAT電池管理單元的統合式WTRU；2 is a diagram showing a unified WTRU including an adjusted multi-RAT battery management unit in accordance with a preferred embodiment of the present invention;
第3圖為第2圖的統合式WTRU的可能電源模式的狀態機圖；Figure 3 is a state machine diagram of a possible power mode of the integrated WTRU of Figure 2;
第4圖為在第2圖的統合式WTRU中用以調節多RAT電池管理的方法的流程圖；4 is a flow chart of a method for adjusting multi-RAT battery management in the integrated WTRU of FIG. 2;
第5圖為使用配置報告之用以調節多RAT電池管理的方法的流程圖；和Figure 5 is a flow diagram of a method for adjusting multi-RAT battery management using configuration reports; and
第6圖為在RAT之間的切換期間用以調節多RAT電池管理的方法的流程圖。Figure 6 is a flow diagram of a method for adjusting multi-RAT battery management during handover between RATs.
RAT‧‧‧無線電存取技術RAT‧‧‧radio access technology
WTRU‧‧‧無線發射/接收單元WTRU‧‧‧Wireless Transmitter/Receiver Unit
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| TW200814557A (en) | 2008-03-16 |
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