KR20090131653A - Method of transmitting power headroom reporting in wireless communication system - Google Patents

Abstract

PURPOSE: A method for transmitting a PHR(Power Headroom Report) from a wireless telecommunications system is provided to efficiently allocate radio resource within a cell by preventing the unnecessary transmission of the electricity remaining information. CONSTITUTION: It determines whether an electricity remaining report is triggered. If one or more electricity remaining report was triggered is determined, an uplink resource accepts MAC control element related to the electricity remaining report. The MAC control element is transmitted based on the value of the electricity remaining if the MAC control element accepts.

Description

METHOD OF TRANSMITTING POWER HEADROOM REPORTING IN WIRELESS COMMUNICATION SYSTEM}

The present invention relates to a wireless communication system and a terminal for providing a wireless communication service, and to a base station in an Evolved Universal Mobile Telecommunications System (E-UMTS) or an LTE system (Long Term Evolution System), which is evolved from a Universal Mobile Telecommunications System (UMTS). The present invention relates to a method of transmitting and receiving power state information (Power Headroom Report).

1 is a diagram illustrating a network structure of an E-UMTS (Evolved Universal Mobile Telecommunications System) which is a mobile communication system to which the present invention and the present invention are applied. The E-UMTS system is an evolution from the existing UMTS system and is currently undergoing basic standardization in 3GPP. The E-UMTS system may be referred to as a Long Term Evolution (LTE) system.

E-UMTS networks can be largely divided into E-UTRAN and CN. The E-UTRAN is a serving gateway (hereinafter abbreviated to S-GW) connected to an external network by being located at a terminal of a user equipment (hereinafter abbreviated to UE), a base station (hereinafter abbreviated to eNode B), and an end of a network. Mobility Management Entity (hereinafter referred to as MME) that manages the mobility of the terminal. One or more cells may exist in one eNode B.

2 and 3 illustrate a structure of a radio interface protocol between a terminal and a base station based on the 3GPP radio access network standard. The wireless interface protocol consists of a physical layer, a data link layer, and a network layer horizontally, and a user plane and control for transmitting data information vertically. It is divided into a control plane for signal transmission. The protocol layers are based on the lower three layers of the Open System Interconnection (OSI) reference model, which are well known in communication systems. L1 (Layer 1), L2 (Layer 2), and L3 (Layer 3) It can be divided into.

The physical layer, which is the first layer, provides an information transfer service to an upper layer by using a physical channel. The physical layer is connected to the upper medium access control layer through a transport channel, and data between the medium access control layer and the physical layer moves through the transport channel. Data moves between physical layers between physical layers, that is, between physical layers of a transmitting side and a receiving side.

Medium access control (hereinafter referred to as MAC) of the second layer provides a service to a radio link control layer, which is a higher layer, through a logical channel. The radio link control (hereinafter referred to as RLC) layer of the second layer supports reliable data transmission. The PDCP layer of the second layer is a header compression that reduces an IP packet header size that contains relatively large and unnecessary control information for efficient transmission in a wireless bandwidth where bandwidth is low when transmitting an IP packet such as IPv4 or IPv6. Compression) function. The PDCP layer is also used to perform encryption of C-plane data, for example RRC messages. PDCP also performs encryption of U-plane data.

The Radio Resource Control (RMC) layer located at the top of the third layer is defined only in the control plane, and the configuration and resetting of the radio bearer (RCB) are performed. It is responsible for the control of logical channels, transport channels and physical channels in relation to configuration and release. In this case, RB means a service provided by the second layer for data transmission between the terminal and the E-UTRAN.

Two axes constituting the E-UTRAN are a base station and a terminal. The radio resource in one cell is composed of an uplink radio resource and a downlink radio resource. The base station is responsible for allocating and controlling uplink and downlink radio resources of the cell. That is, the base station determines which radio resource is used by which terminal at any moment. For example, after 3.2 seconds, the base station may determine that the frequency 100Mhz to 101Mhz is allocated to user 1 for downlink data transmission for 0.2 seconds. After the base station makes this determination, the base station notifies the corresponding terminal of the fact so that the terminal receives the downlink data. Similarly, the base station determines when and which terminal to use to transmit data upwards using what radio resources, and the base station informs the terminal of this determination, so that the terminal transmits data using the radio resources during the time. Do it.

Unlike the related art, the base station dynamically managing radio resources enables efficient use of radio resources. The prior art allows one terminal to continue using one radio resource while the call is connected. This is particularly unreasonable considering that many services are based on IP packets in recent years. This is because most packet services do not generate packets steadily during the connection time of the call, but there are many intervals in which nothing is transmitted during the call. In this case, it is inefficient to continuously allocate radio resources to one UE. In order to solve this problem, the E-UTRAN system uses a method of allocating radio resources to the terminal in the same manner as above only when there is service data when the terminal is needed.

4 is an exemplary diagram illustrating an operation of a dynamic radio resource allocation method. In the LTE system, in order to use radio resources efficiently, the base station needs to know how much data each user wants to transmit. In the case of downlink data, this downlink data is transferred from the access gateway to the base station. Therefore, the base station knows how much data should be transmitted to the downlink to each user. On the contrary, in the case of uplink data, the base station cannot know how much uplink radio resources each terminal needs unless the terminal directly informs the base station of information about data to be transmitted on the uplink. Therefore, in order for the base station to properly allocate uplink radio resources to the terminal, each terminal should provide the base station with information necessary for the base station to schedule radio resources.

To this end, the terminal informs the base station when there is data to be transmitted, and the base station transmits a radio resource allocation message to the terminal based on this information.

In the above process, that is, when the terminal informs the base station when there is data to be transmitted, the terminal informs the base station of the amount of data accumulated in its buffer. This is called Buffer Status Report (BSR).

The buffer state information is generated in the form of a MAC control element and included in the MAC PDU and transmitted from the terminal to the base station. That is, uplink radio resources are required to transmit the buffer status report (BSR). This means that uplink radio resource allocation request information for transmitting buffer status information should be transmitted. When the buffer state information is generated, if there is an allocated uplink radio resource, the terminal immediately transmits the buffer state information by using the uplink radio resource. The process of transmitting the buffer state information to the base station by the terminal is called a buffer state information process (BSR procedure). The BSR process includes: 1) when there is no data in all buffers, new data arrives in a buffer, 2) data arrives in an empty buffer, and the priority of the logical channel associated with the buffer is If the priority is higher than the logical channel associated with the buffer that holds the data, 3) The cell changes, and so on. When the uplink radio resource is allocated after the BSR process is triggered, all data in the buffer can be transmitted through the radio resource, but if the radio resource is insufficient to include the BSR, the terminal is triggered. Cancel the BSR process.

Here, there is a power remaining amount report or information (PHR: Power Headroom Report) separately from the buffer state information. The power remaining amount information indicates how much power the terminal can additionally use. That is, the power remaining amount information means a difference between power values that are currently transmitted by the terminal from power that can be transmitted by the terminal.

The reason why the terminal informs the base station of the power remaining amount information is because it does not allocate a specific amount of radio resources beyond the capability of the terminal. For example, assume a terminal having a maximum transmit power of 10 W. And suppose that the current terminal is using the output power of 9W using a frequency band of 10Mhz. If the frequency band of 20Mhz is allocated to this terminal, power of 9W * 2 = 18W is required, but since the maximum power of the terminal is 10W, if the terminal assigns 20Mhz to the terminal, the terminal can use all of the frequency bands. Or it will run out of power and the base station will not be able to properly receive the signal of the terminal.

As with LTE systems, most of the current traffic is based on Internet services. The characteristic of the data generated in the Internet service is generated suddenly, and the amount is not constant (Bursty). Therefore, if the terminal suddenly has data to be transmitted to the base station, if there is a power remaining report (PHR) received by the base station from the terminal before generation of the data, the base station provides the terminal with an appropriate amount of radio resources. It will be easy to allocate. Here, the PHR itself is not delivered to the base station in a reliable manner. That is, the base station may not always successfully receive the PHR transmitted by the terminal. Therefore, even if the terminal has already transmitted the PHR to the base station and there is no change in the PHR information, it may be better for the terminal to send the PHR back to the base station.

For the above reasons, in the prior art, a periodic PHR scheme is used. That is, in a periodic PHR, the terminal operates a timer and transmits the PHR to the base station whenever the timer expires.

According to the conventional scheme, when the periodic timer expires, the terminal triggers a periodic PHR, and when the periodic PHR is actually transmitted, restarts the periodic timer. However, in general, the PHR is not triggered only when the periodic timer expires, but the PHR is triggered even when a path loss value measured by the terminal changes to a predetermined reference value or more.

5 is an exemplary diagram illustrating an operation of transmitting a power residual report according to the prior art. The terminal configures a new PHR and transmits it to the base station when the periodic timer expires. In this case, the terminal restarts the periodic timer. In addition, the terminal continues to monitor the path loss (power loss). When the path loss exceeds a reference value after transmitting the PHR, the UE configures a new PHR and transmits it to the base station. After the periodic timer expires, the terminal configures a new PHR and transmits it to the base station.

However, as shown in FIG. 5, when a new PHR is transmitted due to a path loss change and a new PHR is transmitted due to the expiration of a periodic timer, a change in path loss is actually performed during this period. There is almost no. Therefore, the new PHR generated due to the expiration of the periodic timer has little new information, thus causing a waste of radio resources. That is, since uplink radio resources must be allocated to the terminal, other terminals cannot be allocated radio resources. In addition, if there is no data to be actually transmitted by the terminal, the radio resource is not used by any terminal, thus wasting radio resources.

That is, in the PHR report, the prior art is generated by dividing the operation according to the reason for triggering. That is, a problem arises when the PHR method based on the operation according to the path loss change and the PHR method using the periodic timer are operated separately.

Accordingly, it is an object of the present invention to provide a more effective method for transmitting a power residual report (PHR) on a wireless communication system to prevent waste of radio resources.

In order to solve the above problems of the present invention, a method for providing a power headroom report (PHR) on a wireless communication system, comprising: determining whether the power remaining report (trigger) has been triggered; If it is determined that at least one power remaining report has been triggered, determining whether allocated uplink resources can accept a MAC control element (CE) associated with the power remaining report; And if it is determined that the allocated uplink resources are acceptable for the MAC control element, transmitting the MAC control element based on a value of power remaining amount.

Preferably, the MAC control element is characterized in that it is included in a MAC Protocol Data Unit (PDU).

Preferably, the MAC control element is characterized in that the PHR MAC control element.

Preferably, the power residual report is triggered by at least one of power loss changes, periodic timer for a PHR transmission, and setting or resetting the PHR functionality. It is done.

Preferably, the power residual report is triggered if the path loss is changed by more than a threshold value.

Preferably, if the periodic timer for transmitting the PHR expires, the remaining power report is triggered.

Advantageously, the power residual report is not triggered if a reset of the PHR functionality is used to disable the function.

Advantageously, the allocated uplink resources make the MAC control element acceptable as a result of logical channel priority.

Preferably, the value of the amount of power is characterized in that obtained from the physical layer (physical layer).

In the present invention, in the process of transmitting the power remaining amount information to the base station, by preventing the unnecessary power to send the remaining amount information, and also prevents the malfunction as if sent even though not actually sent, so that the base station is a radio resource in the cell It has the effect of making effective allocation.

The present invention is applied to 3GPP communication technology, in particular UMTS (Universal Mobile Telecommunications System) system, communication device and communication method. However, the present invention is not limited thereto and may be applied to all wired and wireless communication to which the technical idea of the present invention can be applied.

A basic concept of the present invention is a method for providing a power headroom report (PHR) on a wireless communication system in order to reduce waste of radio resource use in transmitting a power residual report (PHR) on a wireless communication system. Determining whether the power remaining report has been triggered; If it is determined that at least one power remaining report has been triggered, determining whether allocated uplink resources can accept a MAC control element (CE) associated with the power remaining report; And if it is determined that the allocated uplink resources are acceptable for the MAC control element, transmitting the MAC control element based on the value of the power remaining amount. And propose a wireless mobile communication terminal that can perform this method.

In general, the base station must correctly know the power remaining amount information of the terminal to properly allocate the radio resources, it is possible to prevent the waste of radio resources.

In general, the power headroom reporting procedure may be described as follows. First, the power remaining amount reporting process is triggered in the following case. That is, after 1) the most recent PHR, when the power loss (Path Loss) is above a certain reference value (DL_PathlossChange), or 2) when the periodic PHR timer expires (periodic PHR at this time) 3) the power remaining amount reporting process is triggered in a periodic PHR process or when the PHR functionality is set or reset.

After the recent PHR transmission, when the above case occurs and the PHR is triggered, the UE first receives a newly allocated uplink resource (UL resource) during this transmission time interval (TTI). If there is the uplink resource, and if there is the uplink resource, a power headroom value is received from a physical layer. Then, based on the power remaining value, the multiplexing and assembly (MA) entity is instructed to generate a PHR MAC control element. In this process, when the PHR is a periodic PHR, the periodic PHR timer is restarted.

 In general, a medium access control (MAC) layer is composed of a number of entities, each of which performs a specified function. Among them, there is a multiplexing and assembly (MA) entity, which determines which data to use for the transmission of radio resources allocated from the base station, and configures the MAC PDU to be actually transmitted based on this. For example, when a terminal is allocated a radio resource capable of transmitting 200 bits, and there is 150 bits of data in the first logical channel and 150 bits of data in the second logical channel, the MA entity is assigned to each of them. It determines how much data is received from the logical channel to configure a MAC protocol data unit (PDU), and configures a MAC PDU based on the determination.

Therefore, even if radio resources are allocated, data stored in each logical channel or MAC control element (MAC CE) generated by a MAC entity may not always be transmitted. When the PHR is triggered, the PHR is not always included in the radio resource even if the MAC entity has been allocated a radio resource.

In general, a procedure for performing an operation related to a PHR only checks whether a MAC entity has been allocated a radio resource. In other words, the current PHR operation checks whether the PHR is triggered when the radio resource is allocated, and if so, instructs the MA entity to include the PHR MAC CE in the MAC PDU and releases the trigger for the PHR. However, if the MA entity decides to transmit other data first than the PHR MAC CE, the MAC PDU does not actually include the PHR. That is, the PHR process assumes that the PHR is transmitted, but the MA entity does not transmit the PHR. In this case, since the base station cannot receive the necessary PHR information, it is unable to allocate an appropriate radio resource to the terminal. In other words, even though the UE does not actually send the PHR, the UE may malfunction.

As mentioned above, when a periodic PHR is configured or reconfigured, the PHR is triggered. For example, PHR may be triggered when the Radio Resource Control (RRC) layer changes the configuration to use Periodic PHR without using a Periodic PHR. In addition, the PHR may be triggered when the RRC layer changes the configuration to stop using the Periodic PHR while the Periodic PHR is being used. Here, stopping the periodic PHR is equivalent to that the terminal does not send the PHR. However, even when the periodic PHR is reset to stop, it is generally a waste of radio resources for the UE to trigger and transmit the PHR. In addition, since the base station has received the PHR set not to be sent, the base station cannot determine why the terminal has sent the PHR, resulting in confusion.

Hereinafter, the configuration and operation of the embodiments according to the present invention will be described with reference to the accompanying drawings.

As mentioned above, the present invention is to provide a method for the terminal to effectively transmit its power remaining report or information (PHR) to the base station. Specifically, in a terminal that periodically transmits power remaining amount information to a base station using a timer, the terminal restarts the Periodic PHR timer whenever the PHR is transmitted to the base station, and when the Periodic PHR timer expires, Trigger and transmit to the base station.

6 is an exemplary view illustrating an operation of transmitting a power residual report according to the present invention.

As shown in FIG. 6, according to the present invention, the terminal restarts the periodic PHR timer whenever the PHR is sent to the base station. In addition, even when the PHR is transmitted because the change of the path loss value exceeds a predetermined reference value, the terminal restarts the periodic PHR timer. Therefore, according to the conventional method, the periodic PHR timer has expired at the time B indicated in FIG. 6 and the PHR has been transmitted to the base station at the time B. According to the present invention, the PHR timer is not triggered at the time B. Instead, the Periodic PHR timer expires at the point C shown in FIG. 6, and the UE transmits the PHR to the base station at this point. Therefore, the present invention prevents the PHR from being transmitted unnecessarily frequently and also prevents the PHR from being transmitted many times in a short time.

Such a power headroom reporting procedure indicating the process according to the present invention can be described as follows. First, the power remaining reporting process is triggered in the following cases. That is, after 1) the most recent PHR, when the power loss (Path Loss) is above a certain reference value (DL_PathlossChange), or 2) when the periodic PHR timer (Periodic PHR timer) has expired, the power remaining amount reporting process is triggered do. After the recent PHR transmission, when the above case occurs and the PHR is triggered, the UE first receives a newly allocated uplink resource (UL resource) during this transmission time interval (TTI). If there is the uplink resource, and if there is the uplink resource, a power headroom value is received from a physical layer. Then, based on the power remaining value, the multiplexing and assembly (MA) entity is instructed to generate a PHR MAC control element. In this process, when the PHR is a periodic PHR, the periodic PHR timer is restarted.

In addition, the present invention proposes that in the operation related to the PHR, the PHR process operates according to the decision of the Multiplexing and Assembly (MA) entity. Specifically, according to the determination of the MA entity, when the PHR MAC control element (CE) (or MAC PHR CE) cannot be included in the new MAC PDU, the PHR is not triggered. In this case, the PHR MAC control element is not included in the MAC PDU. On the other hand, when the PHR MAC control element may be included in the new MAC PDU according to the determination of the MA entity, the PHR is triggered according to an additional condition. In this case, a timer is restarted and the PHR MAC control element is included in the MAC PDU and transmitted.

In addition, when a new UL resource is allocated, the MA entity determines which logical channel data or which MAC CE can be transmitted through the new UL resource. As a result, when the MAC PHR CE can be included in the MAC PDU, the MA entity informs the PHR process. Based on this, the PHR process determines whether to trigger a PHR in relation to a change in path loss or a periodic PHR timer, and if the PHR is triggered, instructs the MA entity to include the PHR in the MAC PDU. That is, when there is a triggered MAC PHR CE, the PHR process transmits the MAC PHR CE included in the MAC PDU when a new radio resource is allocated and the new radio resource may include the MAC PHR CE.

A power headroom reporting procedure indicating the process according to the present invention can be described as follows. First, the power remaining reporting process is triggered in the following cases. That is, after 1) the most recent PHR, when the power loss (Path Loss) is above a certain reference value (DL_PathlossChange), or 2) when the periodic PHR timer (Periodic PHR timer) has expired, the power remaining amount reporting process is triggered do. Then, it checks whether there is a PHR triggered after the most recent PHR transmission. If it is determined in the inspection that there is a triggered PHR, it is checked whether there is a newly allocated radio resource. Subsequently, if the inspection determines that there is a newly allocated radio resource, as a result of priority (eg, logical channel priority), the MAC PDU transmitted through the newly allocated radio resource may include a PHR MAC CE. Check if you can. Subsequently, if the inspection determines that the newly allocated radio resource may include the PHR MAC CE, a power headroom value is received from a physical layer. Then, based on the power remaining value, instructing a Multiplexing and Assembly (MA) entity to create a PHR MAC Control Element, restarting the Periodic PHR Timer, and then all PHRs triggered. Cancel.

In addition, the present invention proposes to consider the type of PHR setting in determining whether the PHR process should send PHR. In particular, when the setting for the PHR process is changed, it is proposed to determine whether to trigger the PHR according to the type of setting change for the PHR process. Specifically, when the PHR setting is changed by a higher level, the PHR process determines whether the change of the PHR setting stops using the PHR process, and if the PHR setting change no longer uses the PHR process. If not instructing not to trigger the PHR, and if the PHR configuration change does not instruct to stop using the PHR it is proposed to trigger the PHR.

Power remaining amount information reporting process indicating the process according to the present invention can be described as follows. First, the power remaining reporting process is triggered in the following cases. That is, after 1) the most recent PHR, the power loss (Path Loss) is above a certain reference value (DL_PathlossChange), or 2) the periodic PHR timer (Periodic PHR timer) has expired, or 3) the PHR process is newly If set, or 4) when the PHR process is reset, the power remaining amount reporting process is triggered if the reset is not a reset to stop the PHR process. Then, it checks whether there is a PHR triggered after the most recent PHR transmission. If it is determined in the inspection that there is a triggered PHR, it is checked whether there is a newly allocated radio resource. Subsequently, if the inspection determines that there is a newly allocated radio resource, as a result of priority (eg, logical channel priority), the MAC PDU transmitted through the newly allocated radio resource may include a PHR MAC CE. Check if you can. Subsequently, if the inspection determines that the newly allocated radio resource may include the PHR MAC CE, a power headroom value is received from a physical layer. Then, based on the power remaining value, instructing a Multiplexing and Assembly (MA) entity to create a PHR MAC Control Element and restarting the Periodic PHR Timer, then all triggered Cancel the PHR.

The PHR MAC control element mentioned in the present invention is identified by a MAC PDU sub-header having an LCID, has a fixed size, and also constitutes one octet.

In addition, the above-described process of the present invention may be represented by the following procedure text.

-A Power Headroom Report (PHR) shall be triggered if any of the following events occur:

prohibitPHR-Timer expires or has expired and the path loss has changed more than dl-PathlossChange dB since the transmission of a PHR when UE has UL resources for new transmission;

periodicPHR-Timer expires;

-upon configuration or reconfiguration of the power headroom reporting functionality by upper layers [8], which is not used to disable the function.

-If the UE has UL resources allocated for new transmission for this TTI:

if the Power Headroom reporting procedure determines that at least one PHR has been triggered since the last transmission of a PHR or this is the first time that a PHR is triggered, and;

-if the allocated UL resources can accommodate a PHR MAC control element as a result of logical channel prioritization:

obtain the value of the power headroom from the physical layer;

instruct the Multiplexing and Assembly procedure to generate and transmit a PHR MAC control element based on the value reported by the physical layer;

start or restart periodicPHR-Timer;

start or restart prohibit PHR-Timer;

cancel all triggered PHR (s).

Hereinafter, a terminal according to the present invention will be described.

The terminal according to the present invention includes all types of terminals that can use a service that can exchange data with each other over the air. That is, the terminal according to the present invention is a mobile communication terminal capable of using a wireless communication service (for example, user equipment (UE), mobile phone, cellular phone, DMB phone, DVB-H phone, PDA phone, and PTT phone, etc.) It is a comprehensive meaning including laptops, laptops, laptops, digital TVs, GPS navigation, handheld game consoles, MP3s, and other consumer electronics.

The terminal according to the present invention may include a basic hardware configuration (transmitter / receiver, processor or controller, storage, etc.) required to perform functions and operations for efficient system information reception illustrated in the present invention.

The method according to the invention described thus far can be implemented in software, hardware, or a combination thereof. For example, the method according to the present invention may be stored in a storage medium (eg, internal memory of a mobile terminal or base station, flash memory, hard disk, etc.) and may be stored in a processor (eg, mobile terminal or base station). Code or instructions within a software program that can be executed by an internal microprocessor).

In the above, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary and will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. . Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a network structure of an Evolved Universal Mobile Telecommunications System (E-UMTS), which is a mobile communication system to which the present invention and the present invention are applied.

Figure 2 is an exemplary view showing a control plane structure of a radio interface protocol between the terminal and the E-UTRAN in the prior art.

3 is an exemplary diagram illustrating a user plane structure of a radio interface protocol between a terminal and an E-UTRAN in the prior art.

4 is an exemplary diagram illustrating an operation of a dynamic radio resource allocation method.

5 is an exemplary diagram illustrating an operation of transmitting a power residual report according to the prior art.

6 is an exemplary view illustrating an operation of transmitting a power residual report according to the present invention.

Claims (9)

In the method for providing a power headroom report (PHR) on a wireless communication system, Determining whether the power remaining amount report has been triggered; If it is determined that at least one power remaining report has been triggered, determining whether allocated uplink resources can accept a MAC control element (CE) associated with the power remaining report; And And if it is determined that the allocated uplink resources are acceptable for the MAC control element, transmitting the MAC control element based on a value of power remaining amount. 2. The method of claim 1, wherein the MAC control element is included in a MAC Protocol Data Unit (PDU). The method of claim 1, wherein the MAC control element is a PHR MAC control element. 2. The method of claim 1, wherein the power residual report is triggered by at least one of power loss changes, periodic timer for a PHR transmission, and setting or resetting PHR functionality. Characterized in that the remaining power report providing method. 5. The method of claim 4, wherein the power residual report is triggered if the path loss is changed by more than a threshold value. The method of claim 4, wherein the power remaining report is triggered when the periodic timer for transmitting the PHR expires. 5. The method of claim 4, wherein the power residual report is not triggered if a reset of the PHR functionality is used to disable the function. 2. The method of claim 1, wherein the allocated uplink resources make the MAC control element acceptable as a result of logical channel priority. 2. The method of claim 1, wherein the value of power amount is obtained from a physical layer.

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