DE102004037815B4 - Mobile radio device and method for controlling mobile radio transmitter resources in a mobile radio device - Google Patents

Abstract

Mobile radio communication system, • with a transmission control device which is arranged in a mobile radio device, for controlling mobile radio transmitter resources, and • with a coupled to the transmission control device medium access control unit and at least one data buffer memory, which is arranged in the mobile radio device the medium access control unit is set up to determine the fill level of the at least one data buffer and to transmit information representing the fill level to the send control device and to a mobile radio base station, and wherein the send control device and the Mobile radio base station are adapted to receive the information representing the level, • wherein the transmission control device is arranged to control the mobile radio transmitter resources of the mobile device depending on a control signaling from the mobile radio base station.

Description

The invention relates to a mobile radio device in a mobile radio communication system and to a method for controlling mobile radio transmitter resources in a mobile radio device.

Such a mobile radio device and such a method are known within the framework of the mobile radio system UMTS (Universal Mobile Telecommunications System).

A UMTS mobile radio system usually has a core network (CN), a mobile radio access network (UMTS Terrestrial Radio Access Network, UTRAN) and a plurality of mobile radio terminals (User Equipment, UE). According to UMTS, a transmission mode is provided, referred to as FDD mode (Frequency Division Duplex), in the context of which a separate signal transmission in the uplink direction (uplink direction - also referred to as uplink - denotes a signal transmission direction from a mobile terminal to a respective base station in the mobile radio access network) and in the downlink direction (downlink direction - also referred to as downlink - denotes a signal transmission direction from a respectively the mobile terminal associated base station in the mobile radio access network to the mobile terminal) is carried out by a separate assignment of Frequencies or frequency ranges.

For the transmission of data between a mobile radio terminal and a respective base station of a mobile radio cell, an air interface is defined according to UMTS, which is divided into three protocol layers. An overview and a detailed description of the UMTS air interface protocol layers are given in 3GPP TS 25.301, Technical Specification, Third Generation Partnership Project Technical Specification Group Radio Access Network; Radio Interface Protocol Architecture.

The 3GPP (3rd Generation Partnership Project) standardization body, as developed in RP-040081, Proposed Work Item at FDD Enhanced Uplink, TSG-RAN Meeting # 23, Phoenix, USA, 10-12. March 2004, at an improvement of the packet data transmission practiced DCH (Dedicated Channel) according to UMTS in uplink direction for the UMTS FDD mode.

One of the three protocol layers of the UMTS air interface is known as the Radio Resource Control (RRC) protocol layer. The RRC protocol layer is for the establishment, degradation, and reconfiguration of physical channels, transport channels, logical channels, signaling radio bearers, and radio bearers, as well as negotiating all parameters of the layer's protocol layers 1 and layer 2 responsible according to UMTS. To do this, the units of the RRC layer in the mobile radio terminal and mobile network control unit exchange corresponding RRC messages via the signaling radio bearers, as described in 3GPP TS 25.331, Technical Specification, Third Generation Partnership Project; Technical Specification Group Radio Access Network; RRC Protocol Specification.

For the purpose of managing, in general, the management of mobile transmitter resources in the mobile terminal in the context of uplink packet data transmission, it is known that the mobile radio terminal of a mobile radio network controller (RNC) at RRC level Protocol layer informs about the traffic in a transport channel. This is done by means of so-called Measurement Report messages. In this context, as shown in the following Table 1, the currently competent mobile network control unit data buffer levels, ie. H. the level of the data buffer memory of the RLC units, for the relevant transport channel. In other words, according to 3GPP TS 25.331, Technical Specification, Third Generation Partnership Project; Technical Specification Group Radio Access Network; RRC Protocol Specification is transmitted to the mobile network control unit at the RRC layer level, how many data to be transmitted are currently in the buffer memories of the RLC units of the respective mobile radio terminal.

Under mobile radio transmitter resources in this context, in particular the transmission power of the mobile terminal, the number and the spreading factor of the assigned CDMA codes to understand.

Table 1 shows an example of such a measurement result list as described in 3GPP TS 25.331, Technical Specification, Third Generation Partnership Project; Technical Specification Group Radio Access Network; RRC Protocol Specification is described: Information Element / Group name Need Multi Type and referenc e Semantics description Traffic volume measurement results operating room 1 to <emaxRB> > RB Identity MP RB Identity 10.3.4.1 6 > RLC buffer payload operating room Enumerate ed (0, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2K, 4K, 8K, 16K, 32K, 64K, 128K, 256K, 512K, 1024K) In bytes And N Kbytes = N × 1024 bytes. Twelve spare values are needed. > Average of RLC buffer payload operating room Enumerate ed (0, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2K, 4K, 8K, 16K, 32K, 64K, 128K, 256K, 512K, 1024K) In bytes And N Kbytes = N × 1024 bytes. Twelve spare values are needed. > Variance of RLC buffer payload operating room Enumerate ed (0, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2K, 4K, 8K, 16K) In bytes And N Kbytes = N × 1024 bytes. Two spare values are needed. Table 1

With the aid of this information, the mobile radio network control unit can make corresponding configurations of the mobile radio terminal in order to restrict or increase, for example, the usable transport formats of a mobile radio terminal or a handover to another mobile radio cell Reconfiguring the dedicated physical channels or an RRC state change, in particular from a first RRC state CELL DCH to a second RRC state CELL FACH perform.

The measurement result list shown in Table 1 is thus transmitted from an RRC unit in the mobile radio terminal to the RRC unit in the corresponding mobile radio network control unit, and the respective RLC data buffer fill level is displayed per radio bearer (RB) , The values can be specified either as an absolute value (RLC Buffer Payload, as an average value (Average of RLC Buffer Payload) or as a deviation from a defined value (Variance of RLC Buffer Payload).

In the standardization panel 3GPP, the improvement of packet data transmission over dedicated uplink transport channels, i. H. for the uplink direction at the UMTS air interface for the FDD mode, worked to increase the data throughput and the transmission speed. For better delimitation from the already existing dedicated transport channel DCH, a new dedicated transport channel named Enhanced Dedicated Channel (E-DCH) has been introduced. The key features of this new transport channel include the application of a Hybrid Automatic Repeat Request (HARQ) method based on the N-channel Stop & Wait method, a controlled scheduling and frame length of Small or Medium Termination called NodeB by UMTS equal to 10 ms.

The N-channel Stop & Wait HARQ method is a transmission protection method in which a number of N so-called HARQ processes are configured for a mobile radio terminal, one HARQ process representing one instance of the stop-and-wait method. For each HARQ process, the data is sent to the network and buffered until the network acknowledges acknowledgment of correctly received data (ACK). Otherwise, d. H. in the case of incorrectly received data (negative acknowledgment, NACK), the data is sent to the network repeatedly.

NodeB Controlled Scheduling is a method of controlling mobile terminal scheduling, that is, selecting a suitable transport format from a set of defined transport formats for the E-DCH transport channel, in such a manner that the NodeB in Fig Depending on the traffic situation in the respective radio cell a mobile radio terminal can temporarily restrict the use of transport formats from the set of defined transport formats for the E-DCH transport channel.

It has not yet been decided how to transfer in detail the data about the new transport channel E-DCH via the UMTS air interface. A possible solution is to divide the data according to their priorities on different data buffer memories, so-called priority queues (PQ), which are then processed according to their importance, or less preferably processed and thus transmitted.

As stated above, a transmission protection (HARQ) method is used in which the network sends the mobile terminal an acknowledgment about correctly or incorrectly received data. Also for this function, the mobile terminal includes various data buffer memories to buffer the data until the confirmation of the correct reception.

Both functions are implemented within the MAC protocol layer in the newly scheduled sub-protocol layer, i. H. a so-called Medium Access Control Enhanced Uplink (MAC-e) entity, both end-side and on the network side exists, d. H. is implemented. On the network side, the entity performing the communication protocol according to MAC-e is in the NodeB, d. H. in the UMTS base station.

When transmitting the data over the transport channel E-DCH, for example, due to poor transmission conditions over the UMTS air interface, the HARQ entity in the MAC-e layer may only receive negative receive messages NACK over a longer period of time. In this case, it may happen that the data buffers of the priority queues and the HARQ units reach their maximum value and that further data can no longer be buffered in the data buffers and thus must be discarded.

The level of the data buffer memories of the priority queues and the HARQ units in the mobile radio terminal is not signaled according to the prior art to the network, in particular the mobile radio access network, and therefore becomes in the configuration or reconfiguration of the entities of the protocol layers and the transmitter resources of the mobile terminal are not taken into account.

According to the prior art, as in 3GPP TS 25.331, Technical Specification, Third Generation Partnership Project; Technical Specification Group Radio Access Network; RRC Protocol Specification, only the level of the data buffer of the RLC protocol layer is signaled to the network.

One possible solution would therefore be to reconfigure the data buffers of the RLC entities based on the fill level.

This would be disadvantageous because only very late, d. H. after overflow of the data buffer in the MAC layer an overflow of the data buffer of the RLC layer could be detected. Only after detecting an overflow of the data buffer in the RLC layer would it be possible to signal these to the network. This would lead to strong delays in the response to data buffer overflows in the mobile terminal.

Furthermore, this solution would be disadvantageous because the network in particular the mobile access network, no information about it, at which point of the transmission chain, d. H. in particular, in which of the units of the RLC layer, the MAC-d layer or the MAC-e layer, there are transmission problems. Therefore, no specific and customization of the individual entities can be made.

In EP 0 981 229 A2 a method is described in which a communication terminal determines a buffer level at the MAC level and increases or decreases depending on the buffer level, the number of radio bearers used for data transfer.

WO 01/63856 A1 describes a message flow control in which an adaptation of the allocated resources takes place depending on a data buffer level at RLC level or at MAC-d level, which is transmitted to a MAC-c unit, the communication of the Data buffer level representing information only in a device, such as a user equipment, is performed.

The invention is based on the problem of specifying a mobile radio communication system and a method for controlling mobile radio transmitter resources in a mobile radio device which detects problems in the fill levels of the data buffer memory in a mobile radio device as early as possible and enables a new configuration of the mobile radio device more accurately and better adapted to the situation ,

The problem is solved by a mobile radio communication system and by a method for controlling mobile radio transmitter resources in a mobile radio device with the features according to the independent patent claims.

Preferred developments of the invention will become apparent from the dependent claims.

A mobile radio communication system has a transmission control device, which is arranged in a mobile radio device, for controlling mobile radio transmission resources. The mobile radio communication system further comprises a medium access control unit coupled to the transmission control device and at least one data buffer memory, which are arranged in the mobile radio device. The medium access control unit is set up to determine the fill level of the at least one data buffer store and to transmit information representing the fill level to the send control device and to a mobile radio base station, and the send control device and the mobile radio base station are set up, to receive the information representing the level. The transmission control device is set up to control the mobile radio transmission resources of the mobile radio device as a function of control signaling from the mobile radio base station.

In a method for controlling mobile radio transmitter resources in a mobile radio device, the fill level of at least one data buffer memory which is arranged in the mobile radio device is determined by a medium access control unit which is arranged in the mobile radio device. Furthermore, a information representing the determined fill level is transmitted to a transmission control device, which is arranged in the mobile radio device, and to a mobile radio base station. The transmission control device and the mobile radio base station receive the information representing the filling level and the mobile radio transmission resources used by the mobile radio device are controlled by the transmission control device using the information representing the level, wherein the mobile radio transmission resources of the mobile radio device depend on a control signaling be controlled by the mobile radio base station. Illustratively, the invention can be seen in that in the context of the transmission of data, in particular of data packets from the mobile device to the mobile network, in particular to the base station, particularly preferably to the UMTS base station, d. H. the NodeB, in other words in the uplink data transmission, a device and a method for signaling the traffic volume in the mobile terminal, in general the mobile radio device is provided. The level of the data buffer memories of the priority queues and / or the HARQ units of the medium access control protocol layer, generally the level of the data buffer memories in the medium access control protocol layer, becomes for the purpose of fast and efficient data transmission over dedicated transport channels of the UMTS Air interface detected and the transmission control device passed.

Compared to the prior art, the passing on of fill levels or filling levels of data buffer memories in the mobile radio device that exceed a predefinable threshold value already takes place at the medium access control protocol layer level, and not first, as in the prior art, at the level of the RLC protocol layer.

This makes it possible in a very simple and cost-effective manner to detect and react to problems in the transmission of data from the mobile device to the mobile network much earlier, for example by handover to another mobile radio cell or reconfiguration of the amount of transport formats to be used.

Further, due to the availability of buffer level information both at the medium access control protocol layer level and optionally at the RLC protocol layer level, it is now an accurate analysis of the states of the individual devices in the mobile device allows, which leads to a much more accurate fault diagnosis and control of mobile transmitter resources in the mobile device.

The embodiments of the invention described below relate both to the mobile radio device and, in a corresponding manner, to the method for controlling the mobile radio transmitter resources in a mobile radio device.

According to one embodiment of the invention, it is provided that the medium access control unit has a medium access sub-control unit and an automatic repeat request control unit. In accordance with this aspect of the invention, a plurality of medium access control buffers are provided, wherein at least a first medium access control buffer is associated with the medium access sub-controller, and wherein at least one second medium control buffer is the automatic one Repeat request control unit is assigned. The medium access sub-control unit is set up in such a way that it determines the fill level of the at least one first medium access control buffer and transmits information representing the fill level to the transmission control device. Additionally or alternatively, the automatic repeat request control unit may be configured to determine the fill level of the at least one second medium access control buffer and to transmit information representing the fill level of the second medium access control buffer to the send control device ,

Illustratively, according to this embodiment of the invention, it is now possible even to have a MAC protocol layer, which in turn has several protocol layer entities, for example a MAC-e protocol layer unit and a HARQ unit, which is likewise arranged in the MAC protocol layer, with regard to the fill levels the buffer memory associated with these units, the buffer memory designated as priority queue and / or the buffer memory associated with the HARQ units, and thus being able to react very specifically to the respective status changes and to be able to allocate respectively required mobile radio transmitter resources.

According to a further embodiment of the invention, it is provided that the automatic repeat request control unit is set up for carrying out a hybrid automatic repeat request method (HARQ method).

In the mobile radio device, a plurality of medium access control buffer memories may be provided, each medium access control buffer memory being provided for temporarily storing data of different priority. In other words, this means that data of different predetermined priority is supplied to a medium access control buffer memory assigned to this priority and is read out thereon in accordance with a predetermined scheduling algorithm and transmitted in consideration of the priority assigned to the respective buffer memory.

This embodiment of the invention enables data transmission to be improved and optimized in terms of data priority.

The medium access control unit is preferably set up such that it only transmits the information representing the fill level to the transmission control device when the fill level has exceeded a predetermined threshold value. In this way, the data stream between the units of the MAC protocol layer and the RRC protocol layer and by means of this information of a critical buffer memory level reported to the network is reduced to the actually required notifications.

The medium access control unit is preferably arranged such that the threshold value is predetermined as an integer multiple of data units which are processed by the medium access control unit. In this way, a monitoring of the buffer memory adapted to the size of the respective packet data units to be processed is achieved.

The mobile radio device can be set up in such a way that it determines the fill level of the at least one data buffer and additionally indicates the information representing the level to a mobile radio network control unit, according to UMTS as RNC unit (Radio Network Controller), and / or to a mobile radio Base station transmitted.

The mobile radio network control unit and / or the mobile radio base station select, taking into account the transmitted level information to be used new transmission parameters, for example, a new transport format to be used and transmits them to the transmission control device of the mobile device.

The transmission control device is preferably set up to control the mobile radio transmission resources of the mobile radio device as a function of a control signaling from the mobile radio network controller and / or from the mobile radio base station.

• • der Füllstand zumindest eines Teil der, vorzugsweise jedes Medium-Zugriffs-Steuerungs-Pufferspeichers,
• • die Summe der Füllstände zumindest eines Teils der, vorzugsweise aller, Medium-Zugriffs-Steuerungs-Pufferspeicher,
• • die Summe der Füllstände zumindest eines Teils der, vorzugsweise aller, ersten Medium-Zugriffs-Steuerungs-Pufferspeicher und die Summe der Füllstände zumindest eines Teils der, vorzugsweise aller, zweiten Medium-Zugriffs-Steuerungs-Pufferspeicher, und/oder
• • die Summe der Füllstände zumindest eines Teils der, vorzugsweise aller, Medium-Zugriffs-Steuerungs-Pufferspeicher, die auf einen gemeinsamen Medium-Zugriffs-Steuerungs-Datenfluss-Kanal gemultiplext sind.

The information representing the level may be at least one of the following information:

• The level of at least part of, preferably each medium access control, buffer memory,
• The sum of the levels of at least part of, preferably all, medium access control buffer memories,
• The sum of the levels of at least a portion of, preferably all, first medium access control buffers and the sum of the levels of at least a portion of, preferably all, second medium access control buffers, and / or
• The sum of the levels of at least a portion of, preferably all, medium access control buffers multiplexed onto a common medium access control data flow channel.

The information representing the level of the at least one data buffer memory can be transmitted to the transmission control device in response to the occurrence of a predetermined event, illustratively preferably at predetermined times, in particular periodically, in other words after expiration of predetermined, constant time intervals.

For additional reduction of the data transmitted via the air interface, the level of the buffer memory representing information, it is provided a difference information, which is a difference of the level of at least one data buffer and a predetermined level value or a difference of the level of the at least one data buffer memory and a previously determined and to the transmission control device transmitted level value represents, to transmit to the transmission control device.

The mobile radio device is preferably set up as a mobile radio terminal, which is particularly preferably set up to receive and transmit data in accordance with one or more protocols of a cellular mobile radio system.

Particularly preferably, the mobile radio terminal is set up for communication in a UMTS mobile radio system, in other words, the mobile radio terminal is set up to receive and send data according to one or more protocols of a UMTS mobile radio system.

Illustratively, the signaling of the traffic volume in the mobile radio device takes place on the basis of the data buffer memory fill levels in the MAC protocol layer, preferably in the priority queues and the HARQ entity of the MAC-e protocol layer.

When configuring the entities in the MAC-e protocol layer by units of the Mobile Access Network (UTRAN), a threshold is defined at which the units in the MAC-e protocol layer in the mobile terminal indicate the respective data buffer fill level to signal the mobile access network.

In a particularly advantageous embodiment of this invention, this threshold value is defined on the basis of multiples of a defined data unit (N × 300 bits). The signaling of the data buffer filling level on reaching and / or overwriting a certain threshold value is then also on this basis.

Embodiments of the invention are illustrated in the figures and are explained in more detail below.

Show it

1 a communication system according to an embodiment of the invention;

2 a representation of a protocol structure of the UMTS air interface;

3 a representation of the units in a MAC-E protocol layer according to a first embodiment of the invention;

4 a representation of the units in a MAC-E protocol layer according to a second embodiment of the invention;

5 a representation of an example of the time evolution of a level in a data buffer memory.

1 shows a UMTS mobile radio system 100 for the sake of simplicity, in particular, the components of the UMTS Terrestrial Radio Access Network (UTRAN), which comprises a plurality of Radio Network Subsystems (RNS). 101 . 102 each having means of a so-called Iu interface 103 . 104 with the core UMTS network (CN) 105 are connected. A mobile network subsystem 101 . 102 each has a wireless network controller (RNC) 106 . 107 on and one or more UMTS base stations 108 . 109 . 110 . 111 which according to UMTS are also called NodeB.

Within the mobile access network, the mobile network control units are 106 . 107 the individual mobile network subsystems 101 . 102 by means of a so-called Iur interface 112 connected with each other. Any mobile network control unit 106 . 107 monitors in each case the assignment of mobile radio resources of all mobile radio cells in a mobile radio network subsystem 101 . 102 ,

A UMTS base station 108 . 109 . 110 . 111 is in each case by means of a so-called Iub interface 113 . 114 . 115 . 116 with a mobile station network control unit assigned to the base station 106 . 107 connected.

Every UMTS base station 108 . 109 . 110 . 111 vividly biases one or more mobile radio cells (CE) within a mobile radio network subsystem 101 . 102 on. Between a respective UMTS base station 108 . 109 . 110 . 111 and a subscriber device 118 (User Equipment, UE), hereinafter also referred to as mobile radio terminal, in a mobile radio cell, message signals or data signals by means of an air interface, referred to as UMTS Uu-air interface 117 , preferably transmitted according to a multiple access transmission method.

For example, according to the UMTS FDD (Frequency Division Duplex) mode, a separate signal transmission in the uplink and downlink direction (uplink: signal transmission from the mobile terminal 118 to the respective UMTS base station 108 . 109 . 110 . 111 ; Downlink: Signal transmission from the respective assigned UMTS base station 108 . 109 . 110 . 111 to the mobile terminal 118 ) achieved by a corresponding separate allocation of frequencies or frequency ranges.

Multiple subscribers, in other words several activated or in the mobile network access network registered mobile devices 118 in the same mobile radio cell preferably by means of orthogonal codes, in particular according to the so-called CDMA method (Code Division Multiple Access) separated by signal technology.

In this context, it should be noted that in 1 for the sake of simplicity, only one mobile terminal 118 is shown. In general, however, are any number of mobile terminals 118 in the mobile radio system 100 intended.

The communication of a mobile terminal 118 with another communication device can be constructed by means of a complete mobile communication link to another mobile terminal, alternatively to a landline communication device.

As in 2 is the UMTS air interface 117 logically divided into three protocol layers (in 2 symbolized by a protocol layer arrangement 200 ). The units (entities) which ensure and realize the functionality of the respective protocol layers described below are both in the mobile radio terminal 118 as well as in the UMTS base station 108 . 109 . 110 . 111 or in the respective mobile network control unit 106 . 107 , implemented.

In 2 is the protocol structure 200 from the point of view of the dedicated transport channel DCH (Dedicated Channel).

In the 2 The lowest layer shown is the physical layer PHY 201 which according to the OSI reference model (Open System Interconnection) according to ISO (International Standardization Organization) the protocol layer 1 represents.

The above the physical layer 201 arranged protocol layer is the data link layer 202 , according to OSI reference model protocol layer 2 , which in turn has several sub-protocol layers, namely the medium access control protocol layer (MAC protocol layer) 203 , the radio link control protocol layer 204 (RLC protocol layer), the Packet Data Convergence Protocol protocol layer 205 (PDCP protocol layer), as well as the broadcast / multicast control protocol layer 206 (BMC protocol layer).

The top layer of the UMTS air interface Uu is the cellular network layer (according to the OSI reference protocol layer protocol 3 ), comprising the mobile radio resource control unit 207 (Radio Resource Control protocol layer, RRC protocol layer).

Each protocol layer 201 . 202 . 203 . 204 . 205 . 206 . 207 The protocol layer above it offers its services via predefined, defined service access points.

The service access points are provided with common and unique names, such as logical channels, for better understanding of the protocol layer architecture 208 between the MAC protocol layer 203 and the RLC protocol layer 204 , Transport channels 209 between the physical layer 201 and the MAC protocol layer 203 , Radio Bearer (RB) 210 between the RLC protocol layer 204 and the PDCP protocol layer 205 or the BMC protocol layer 206 , as well as Signaling Radio Bearer (SRB) 213 between the RLC protocol layer 204 and the RRC protocol layer 207 ,

In the 2 illustrated protocol structure 200 According to UMTS, it is not only divided horizontally into the protocol layers and units of the respective protocol layers described above, but also vertically into a so-called control protocol level 211 (Control-Plane, C-Plane), which parts of the physical layer 201 , Parts of the MAC protocol layer 203 , Parts of the RLC protocol layer 204 as well as the RRC protocol layer 207 contains and the user log level 212 (User-Plane, U-Plane), which parts of the physical layer 201 , Parts of the MAC protocol layer 203 , Parts of the RLC protocol layer 204 , the PDCP protocol layer 205 and the BMC protocol layer 206 contains.

By means of the units of the control protocol level 211 Only control data required to set up, break down and maintain a communication link is transmitted, whereas the user-level units 212 the actual user data are transported.

Details of the protocol layer arrangement 200 are in 3GPP TS 25.301, Technical Specification, Third Generation Partnership Project Technical Specification Group Radio Access Network; Radio Interface Protocol Architecture.

Each protocol layer or unit (entity) of a respective protocol layer has certain predefined functions in the context of mobile radio communication.

On the transmitter side, the task is the physical layer 201 or units of the physical layer 201 , the secure transmission of the MAC protocol layer 203 coming data over the air interface 117 to ensure. The data in this context are based on physical channels (not shown in FIG 2 ). The physical layer 201 offers its services the MAC protocol layer 203 via transport channels 209 which determines how and with what characteristic the data over the air interface 117 to be transported. The essential functions of the units of the physical layer 201 include channel coding, modulation and CDMA code spreading. The physical layer performs in the same way 201 or the entities of the physical layer 201 on the receiver side, the CDMA code despreading, the demodulation and the decoding of the received data and then passes them to the MAC protocol layer 203 for further processing.

The MAC protocol layer 203 or the units of the MAC protocol layer 203 provides or provides their services to the RLC protocol layer 204 using logical channels 208 as service access points, by means of which characterizes the type of file being transported. The task of the MAC protocol layer 203 in the transmitter, ie in data transmission in the uplink direction in the mobile radio terminal 118 , in particular, lies in the data being sent to a logical channel 208 above the MAC protocol layer 203 abut on the transport channels 209 the physical layer 201 map. The physical layer 201 offers the transport channels 209 For this purpose, discrete transmission rates. Therefore, it is an important feature of the MAC protocol layer 203 or the entities of the MAC protocol layer 203 in the mobile terminal 118 in the transmission case, the selection of a suitable transport format (TF) for each configured transport channel as a function of the respectively current data transmission rate and the respective data priority of the logical channels 208 pointing to the respective transport channel 209 are shown, as well as the available transmission power of the mobile terminal 118 (UE). In a transport format, among other things, it defines how many MAC data packet units, referred to as transport block, per transmission time length TTI (Transmission Time Interval) over the transport channel 209 to the physical layer 201 in other words, be transmitted. The permissible transport formats and the permissible combinations of transport formats of the various transport channels 209 be the mobile terminal 118 from the mobile network control unit 106 . 107 signaled in the establishment of a communication connection. In the receiver, the units of the MAC protocol layer 203 on the transport channels 209 received transport blocks back to the logical channels 208 divided up.

The MAC protocol layer or the units of the MAC protocol layer 203 usually has three logical units. The so-called MAC-D unit (MAC-D unit) treats the payload data and the control data, which are sent via the dedicated dedicated DICH (DICH) and DED (dedicated control channel) logical channels to the dedicated DCH (Dedicated Channel ). The MAC-c-sh unit (MAC control / shared unit) handles the payload data and the control data of logical channels 208 on the common transport channels 209 , such as the common transport channel RACH (Random Access Channel) in the uplink direction or the common transport channel FACH (Forward Access Channel) are mapped in the downlink direction. The MAC-b unit (MAC broadcast unit) treats only the mobile radio cell-relevant system information, which is mapped via the BCCH (Broadcast Control Channel) to the transport channel BCH (Broadcast Channel) and broadcast to all mobile radio terminals 118 be transmitted in the respective mobile radio cell.

• • Transparent Mode (TM),
• • Unacknowledged Mode (UM), oder
• • Acknowledged Mode (AM).

Using the RLC protocol layer 204 or by means of the units of the RLC protocol layer 204 become the RRC protocol layer 207 their services by means of Signaling Radio Bearer (SRB) 213 as service access points and the PDCP protocol layer 205 and the BMC protocol layer 206 by means of radio bearer (RB) 210 offered as service access points. The Signaling Radio Bearer and the Radio Bearer characterize how the RLC protocol layer 204 to deal with the data packets. This is done, for example, by the RRC protocol layer 207 The transmission mode is defined for each configured Signaling Radio Bearer or Radio Bearer. According to UMTS, the following transmission modes are provided:

• Transparent Mode (TM),
• • Unacknowledged Mode (UM), or
• • Acknowledged Mode (AM).

The RLC protocol layer 204 is modeled so that there is one stand-alone RLC entity per radio bearer or signaling radio bearer. Furthermore, the task of the RLC protocol layer or its entities 204 in the transmitting device, the user data and the signaling data of radio bearers or Signaling Radio Bearern split into data packets or put together. The RLC protocol layer 204 transfers the data packets resulting after the division or merging to the MAC protocol layer 203 for further transport or further processing.

The PDCP protocol layer 205 or the units of the PDCP protocol layer 205 is or are set up for the transmission or for the reception of data of the so-called packet-switched domain (packet-switching domain, PS domain). The main function of the PDCP protocol layer 205 is the compression or decompression of the IP header information (Internet Protocol header information).

The BMC protocol layer 206 or their entities is or are used to transmit or receive via the air interface so-called cell broadcast messages.

The RRC protocol layer 207 or the entities of the RRC protocol layer 207 is or are for the construction and the dismantling and reconfiguration of physical channels, transport channels 209 , logical channels 208 , Signaling Radio Bearers 213 and Radio Bearers 210 as well as for the negotiation of all parameters the protocol layer 1 ie the physical layer 201 and the protocol layer 2 , responsible. This is done by exchanging the RRC units, ie the units of the RRC protocol layer 207 in the mobile network control unit 106 . 107 and the respective mobile terminal 118 via the Signaling Radio Bearers 213 corresponding RRC messages. Details of the RRC layer are described in 3GPP TS 25.331, Technical Specification, Third Generation Partnership Project; Technical Specification Group Radio Access Network; RRC Protocol Specification.

As described above, the mobile terminal 118 his assigned mobile network control unit 106 . 107 at the RRC level, communicate information (the so-called Measurement Report messages) about the traffic volume of a transport channel for the purpose of managing the mobile radio resources. The Serving Mobile Radio Network Controller (SRNC) displays the RLC data buffer levels of that transport channel, indicating how much data is currently in each RLC data buffer of the mobile device 118 are located.

With the help of this information, the serving mobile network control unit 106 . 107 then corresponding configurations of the mobile terminal 118 make, for example, the usable transport formats of a mobile terminal 118 or to perform a handover to another mobile radio cell, a reconfiguration of the dedicated physical channels or an RRC state change from a first state CELL DCH to a second state CELL FACH.

In the standardization body 3GPP, work is being done to improve packet data transmission over dedicated uplink transport channels for the UMTS FDD mode.

In this context, a dedicated transport channel called Enhanced-DCH (E-DCH) is provided. The key features of this new transport channel include the application of a Hybrid Automatic Repeat Request (HARQ) based on N-channel Stop & Wait, UMTS Base Station-controlled scheduling, and frame lengths of less than or equal to 10 ms , By means of the HARQ transmission protection method is the mobile terminal 118 from the network a confirmation of correctly or incorrectly received data transmitted. This feature includes the mobile device 118 various data buffers to latch the data until the acknowledgment of correct reception. Furthermore, according to the current proposal in the context of the Enhanced DCH transport channel, it is intended to divide the data according to their priorities into different data buffer memories, so-called priority queues, the data being buffered in the data buffer memories according to their importance, ie their prioritization and thus according to their Caching in the respective buffer memory of a given priority are preferred or less preferably processed.

Both functions come in a new sub-layer of the MAC protocol layer 203 implemented according to a first embodiment in 3 as MAC-e (MAC enhanced uplink) part protocol layer 300 which is also both terminal-side, ie in the mobile terminal 118 , as well as on the network side, ie in a UMTS base station 108 . 109 . 110 . 111 , is implemented. The MAC e-part protocol layer 300 gets its data from the MAC-d-part protocol layer via so-called MAC-d-flows 301 . 302 and transmits its data again via the E-DCH transport channel 303 to the physical layer 201 ,

The MAC e-part protocol layer 300 or their entities communicate or communicate, for example for the purpose of configuration, with the RRC protocol layer 207 via the MAC Control access point 304 ,

In the MAC-d-part protocol layer, one or more logical channels become a MAC-d flow 301 . 302 multiplexed, with each MAC-d flow 301 . 302 a priority is assigned in the MAC-d sub-protocol layer, by means of which the Priority Queue Distribution function is implemented in a priority queue distribution unit 305 in the MAC e-part protocol layer 300 the distribution of the data to the data buffer 306 with the different priorities, ie for processing with data of different priorities in each case a data buffer memory, wherein in a data buffer memory each data of a priority are cached makes.

In the data buffer of the priority queues 306 The data is then buffered until it is provided by a HARQ unit 307 be retrieved for transmission.

According to the N-channel Stop & Wait HARQ method, the HARQ unit exists 307 from a number of N so-called HARQ processes, where a HARQ process represents one instance of the Stop & Wait method. Pro HARQ process takes the HARQ unit 307 a number of packet data units (PDUs) according to their priority from the data buffers of the priority queues 306 and forwards them via the E-DCH transport channel to the physical layer where they are then transmitted via dedicated physical channels over the air interface to the network.

The HARQ unit 307 stores the packet data units (PDUs) transmitted per HARQ process in a corresponding HARQ buffer memory (not shown) until the successful transmission has been acknowledged by the network.

One with the HARQ unit 307 coupled TF selection unit 308 is responsible for selecting the transmission format suitable for the transmission per HARQ process.

In the MAC e-part protocol layer 300 are done by using the RRC protocol layer 207 configured a lot of different transport formats that make up the TF selection unit 308 selects a suitable one for each transmission time interval (TTI) and HARQ process.

The setting of the MAC e-part protocol layer 300 takes place by means of the RRC protocol layer on the part of the mobile network control unit 106 . 107 , As part of the configuration of the MAC e-part protocol layer units 300 in the mobile terminal 118 and in the UMTS base station 108 . 109 . 110 . 111 becomes a threshold for one or more data buffer levels in the priority queues 306 and / or in the HARQ unit 307 associated buffer defined when reaching or exceeding the MAC e-part protocol layer 300 in the mobile terminal 118 the respective data buffer level to the network, in particular to the RRC protocol layer 207 , should signal.

According to the embodiments of the invention, it is preferable that the threshold for a respective data buffer is defined based on multiples of a predetermined, defined data unit (for example, N * 300 bits). The signaling of the data buffer filling level upon reaching the predetermined threshold value then also takes place on this basis.

For the illustrated embodiments, a transmission scenario is assumed in which a user of a mobile radio terminal 118 Uses two parcel services in the uplink in parallel, for example for Interactive Play on the Internet and streaming of video data. This packet data is from the mobile terminal 118 via the E-DCH transport channel 303 to the network, ie to the serving mobile network control unit 106 and the base station 109 over the air interface 117 ,

When establishing the communication connection are the mobile terminal 118 configuration messages via the RRC protocol layer 207 implemented in both the mobile network control unit 106 as well as in the mobile terminal 118 , sent with their help the RRC protocol layer 207 in the mobile terminal 118 configured the underlying protocol layers.

According to this embodiment, the entity of the MAC e-part protocol layer 300 two MAC-d flows 301 . 302 configured, pointing to a MAC-d flow 301 . 302 in each case only one logical channel is multiplexed and the data of the packet services are transmitted to the respectively assigned logical channel. Furthermore, per MAC-d flow 301 . 302 one priority queue each 306 and configured four HARQ processes in the HARQ unit, each with one HARQ buffer. Furthermore, a plurality of different transport formats are configured for the E-DCH transport channel, which make up the transport format selection unit 308 (TF-Selection) has to select a suitable transport format for each transmission time interval (TTI) and HARQ process.

Further, the MAC e-part protocol layer becomes 300 a threshold for at least a portion of, preferably for, all data buffers, ie at least a portion of the data buffers within the priority queues, as well as at least part of the HARQ unit 307 communicated associated data buffer memory, wherein from reaching or exceeding the respective threshold, the MAC e-part protocol layer 300 the RRC protocol layer in the mobile terminal 118 It should inform that a certain amount of data in one of the data buffer memories of the MAC e-part protocol layer 300 are cached for transmission.

According to these embodiments of the invention, the threshold is set at 3000 Kbytes.

It should be noted in this context that the threshold values can be set differently according to requirements, depending on the priority, or also according to other criteria, from buffer memory to buffer memory; alternatively, all threshold values can be selected to be the same.

The control of whether one or more thresholds for reporting the respective level of the data buffer is achieved is based on the data of each individual data buffer of the priority queues 306 or the HARQ unit 307 ,

The RRC protocol layer 207 in the mobile terminal 118 receives the sum of the data in all Priority Queue data buffers and HARQ data buffers when the respective threshold value is reached or exceeded.

This information becomes the RRC protocol layer 207 via the MAC Control access point 304 communicated, whereupon the RRC protocol layer 207 generates a corresponding message and to the corresponding RRC protocol layer 207 in the mobile network control unit 106 sends.

According to these exemplary embodiments of the invention, it is provided that the information on reaching or exceeding the threshold values is also available at the level of the MAC protocol layer 203 and / or at the physical layer level 201 to the respective UMTS base station 109 in the mobile access network.

• • Überwachen der Daten jedes einzelnen Datenpufferspeichers der Priority Queues 306 bzw. jedes einzelnen Datenpufferspeichers der HARQ-Einheit 307;
• • Überwachen der Summe der Daten über alle Priority Queue-Pufferspeicher 306 und der Pufferspeicher der HARQ-Einheit;
• • Überwachen der Summe der Daten in den Priority Queue-Pufferspeichern 306 und separat davon Überwachen der Summe der Daten in den Pufferspeichern der HARQ-Einheit 307;
• • Überwachen der Summe der Daten in den Datenpufferspeicher der Priority Queues 306, welche auf denselben MAC-d-Flow gemultiplext sind.

The control in the mobile terminal 118 Whether the threshold for reporting (reporting) the fill levels of each data cache to the Mobile Access Network can be achieved in a number of ways, including:

• • Monitoring the data of each data buffer of the priority queues 306 or each individual data buffer of the HARQ unit 307 ;
• • Monitoring the sum of data across all Priority Queue buffers 306 and the buffer memory of the HARQ unit;
• • Monitoring the sum of data in the Priority Queue buffers 306 and separately, monitoring the sum of the data in the buffers of the HARQ unit 307 ;
• • Monitoring the sum of the data in the data buffer of the priority queues 306 which are multiplexed on the same MAC-d-Flow.

• • Signalisierung der Daten jedes einzelnen Datenpufferspeichers der Priority Queue-Pufferspeicher 306 und der Pufferspeicher der HARQ-Einheit 307;
• • Signalisierung der Summe der Daten in allen Priority Queue-Pufferspeichern 306 und der Pufferspeicher der HARQ-Entitäten der HARQ-Einheit 307;
• • Signalisierung der Summe der Daten in den Priority Queues 306 und separat davon der Summe der Daten in den HARQ-Einheit 307 bzw. ihrer Entitäten; sowie
• • Signalisierung der Summe der Daten in den Datenpuffern der Priority Queue-Pufferspeicher 306, die auf demselben MAC-d-Flow gemultiplext sind.

The signaling of the fill level of the respective or the plurality of data buffer memory can take place in a corresponding manner, in particular by:

• • Signaling the data of each data buffer of the Priority Queue buffer 306 and the HARQ unit's cache 307 ;
• • Signaling the sum of the data in all priority queue buffers 306 and the HARQ entity cache of the HARQ entity 307 ;
• • Signaling the sum of the data in the priority queues 306 and separately, the sum of the data in the HARQ unit 307 or their entities; such as
• • Signaling the sum of the data in the data buffers of the Priority Queue buffers 306 that are multiplexed on the same MAC-d flow.

In a preferred alternative, it is provided that the mobile radio access network, ie the mobile network control unit 106 . 107 or the UMTS base station 108 . 109 . 110 . 111 not the absolute value of the level of the data buffer or the data buffer is transferred, but only the offset based on the predetermined threshold value. It is advantageous in this case that the size of the messages to be transmitted is reduced.

The signaling in an alternative embodiment of the invention also periodically, d. H. be transmitted to defined defined times to the mobile access network.

The control of whether the threshold for reporting the respective fill level of the data buffer memories has been reached is made in accordance with these embodiments of the invention on the basis of the data of each individual data buffer memory of the priority queues 306 or the HARQ unit 307 , The RRC protocol layer 207 If the specified threshold value is reached or exceeded, the sum of the data in all data buffers of the priority queues 306 and the HARQ unit 307 communicated. This variant is particularly advantageous since the problems of each individual data buffer are taken into account in this case, and nevertheless the overall situation in the data buffer memories of the MAC-e-part protocol layer 300 in a new configuration of the mobile terminal 118 or the respective MAC e-part protocol layer 300 can be taken into account.

To further explain the invention, it is now assumed that it is in the transmission of the data via the E-DCH transport channel 303 problems due to poor transmission conditions.

The HARQ unit 307 then receives negative acknowledgments (NACK) for the Protocol Data Units (PDUs) transmitted by the HARQ process, whereupon the data buffers of the HARQ unit 307 and the priority queues 306 in the MAC e-part protocol layer 300 gradually fill up.

At the time t _x , as in a data buffer fill level diagram 500 in 5 is shown, the level of the data buffer X reaches the priority queues 306 in the MAC e-part protocol layer 300 that of the RRC protocol layer 207 in the mobile terminal 118 previously configured threshold 501 , If the threshold is exceeded 501 sends the MAC e-part protocol layer 300 on the one hand, a notification to the RRC protocol layer 207 in the mobile terminal 118 in that the previously configured threshold in the data buffer X has been exceeded and, on the other hand, as described above, the sum of the data in the data buffers of all priority queues 306 and the HARQ unit 307 ,

The RRC protocol layer 207 in the mobile terminal 118 then generates a Measurement Report message to the RRC protocol layer 207 in the serving mobile network control unit 106 sends.

Among other things, the measurement report message contains the information that the threshold value 501 has been exceeded in the data buffer X as well as information about how much data in all data buffers of the priority queues 306 and the HARQ unit 307 the MAC e-part protocol layer 300 for transmission, in other words, the level of the data buffer of the MAC e-part protocol layer 300 representing information.

The general structure of such a message is given in Table 2. Information Element / Group name Need Multi Type and reference Semantics description Traffic volume measurement results by MAC-d flow operating room 1_to <maxMACd Flows> > MAC-d flow identity MP MAC-d flow identity <section> > MAC-d flow buffer payload operating room Enumerated (0, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2K, 4K, 8K, 16K, 32K, 64K, 128K, 256K, 512K, 1024K) Sum of payloads in the buffers of priority queues mapped onto the same MAC-d flow In bytes And N Kbytes = N × 1024 bytes. Twelve spare values are needed. Traffic volume measurement results by Priority Queue operating room 1_to <maxPQ> > PQ Identity MP PQ Identity <section> > Priority Queue Buffer Payload operating room Enumerated (0, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2K, 4K, 8K, 16K, 32K, 64K, 128K, 256K, 512K, 1024K) In bytes And N Kbytes = N × 1024 bytes. Twelve spare values are needed. Traffic volume measurement results via HARQ buffer operating room 1_to <maxHARQ processe s> > HARQ Process Identity NP HARQ Process Identity <Section> > HARQ buffer payload operating room Enumerated (0, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2K, 4K, 8K, 16K, 32K, 64K, 128K, 256K, 512K, 1024K) In bytes And N Kbytes = N × 1024 bytes. Twelve spare values are needed. MAC-e buffer payload operating room Enumerated (0, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2K, 4K, 8K, 16K, 32K, 64K, 128K, 256K, 512K, 1024K, 2048K, 4096K) Sum of payload in all priority queue and HARQ process buffers. In bytes And N Kbytes = N × 1024 bytes. Ten spare values are needed. Table 2

Illustratively, this message differs from the message described above in Table 1 according to the prior art in that the data buffer fill levels in a variable form of the serving mobile network control unit 106 can be signaled per MAC-d flow by the parameter "Traffic Volume Measurement Results by MAC-d flow", per Priority Queue by the parameter "Traffic Volume Measurement Results by Priority Queue", per HARQ buffer by the parameter "Traffic Volume Measurement Results per HARQ Buffer ", as well as the sum of the data buffer fill levels of all priority queues and HARQ buffers together through the parameter" MAC-e Buffer Payload ".

Upon receiving the Measurement Report message in the RRC protocol layer 207 in the serving mobile network control unit 106 out of this is a re-configuration of the mobile terminal 118 in which it is the MAC-e entity in the corresponding UMTS base station 109 as well as in the mobile radio terminal 118 For example, other transport formats for transmission over the E-DCH transport channel 303 which allows transmission of larger amounts of data per time interval (TTI) or makes a handover to another mobile cell in which there are better transmission conditions.

In addition to signaling at the RRC protocol layer level, it is advantageous to have the threshold crossing information 501 in the data buffer X as well as the overall level of the data buffer memories of the MAC e-part protocol layer 300 also at the level of the MAC protocol layer 203 or at the physical layer level 201 to the respective UMTS base station 109 transferred to. Upon receiving this message, the base station can 109 based on the application of the NodeB controlled scheduling method, for example, temporarily limit the use of transport formats from the set of defined transport formats for the E-DCH transport channel to other mobile terminals, so as to temporarily improve the transmission situation for the mobile terminal considered here.

According to these embodiments of the invention, different definitions for priority queues are provided.

As in 3 every priority queue can be displayed 306 fixed to a MAC-d flow 301 . 302 and there are N priority queues per MAC-d flow 306 for the different priorities. N in this case corresponds to the number of priorities of the logical channels 208 which are multiplexed on the respective MAC-d-Flow.

Alternatively, it may be provided as in 4 shown is that every priority queue 306 Data from all MAC-d flows 301 . 302 and in this case there are N priority queues 306 common to all MAC-d flows. N in this case corresponds to the number of different priorities of the logical channels 208 that are multiplexed on the MAC-d flows.

In a third alternative embodiment of the priority queues 306 It is envisaged that a priority queue is provided for each defined traffic class (traffic class). There are N priority queues 306 for all MAC-d flows 301 , 302 in common, as in 4 shown. In this case, N corresponds to the number of traffic classes, ie the traffic classes, for example N = 4 for the case where the four traffic classes "Conversational", "Streaming", "Interactive" and "Background" are defined.

The MAC-d-part protocol layer in this case shares the MAC e-part protocol layer 300 Information about the priorities of the logical channels 208 that are multiplexed on a MAC-D flow using which the Priority Queue Distribution unit 305 in the MAC e-part protocol layer 300 then the distribution of the data to the individual priority queues 306 performs.

• • Mit der Signalisierung des Datenpufferspeicher-Füllstandes kann das Mobilfunk-Zugangsnetzwerk ein effizientes Mobilfunk-Ressourcen-Management für die zukünftige Datenübertragung über den E-DCH-Transportkanal 303 durchführen.
• • Das Mobilfunk-Netzwerk erhält durch die erfindungsgemäße Signalisierung Informationen, in welcher Protokollschicht bzw. Teil-Protokollschicht und in welcher Entität es zu Übertragungsproblemen kommt und kann dadurch zielgerichtet eine Neu-Konfiguration des Mobilfunk-Endgerätes bzw. der Entitäten in einer Protokollschicht oder sogar in einer Teil-Protokollschicht vornehmen.
• • Ferner ist die erfindungsgemäße Vorgehensweise sehr einfach zu implementieren.

In summary, according to the invention, a plurality of advantages are achieved:

• • Data buffer fill level signaling allows the mobile access network to provide efficient mobile resource management for future data transmission over the E-DCH transport channel 303 carry out.
• The mobile radio network receives information by the signaling according to the invention in which protocol layer or sub-protocol layer and in which entity there are transmission problems and can thereby purposefully reconfigure the mobile radio terminal or the entities in a protocol layer or even in make a partial protocol layer.
• Furthermore, the procedure according to the invention is very simple to implement.

Claims (19)

The mobile radio communication system, • with a transmission control device, which is arranged in a mobile radio device, for controlling mobile radio transmitter resources, and With a medium access control unit coupled to the transmission control device and at least one data buffer memory, which are arranged in the mobile radio device, Wherein the medium access control unit is set up to determine the fill level of the at least one data buffer and to transmit information representing the fill level to the transmit controller and to a mobile radio base station, and Wherein the transmission control device and the mobile radio base station are set up to receive the information representing the level, Wherein the transmission control device is set up to control the mobile radio transmission resources of the mobile radio device as a function of control signaling from the mobile radio base station. Mobile communication system according to claim 1, Having at least one medium access control buffer associated with the medium access control unit, Wherein the medium access control unit is set up to determine the fill level of the at least one medium access control buffer and to transmit information representing the fill level to the send control device. Mobile communication system according to claim 2, In which the medium access control unit has a medium access sub-control unit and an automatic repeat request control unit, in which a plurality of medium access control buffer memories are provided, at least one first medium access control unit being provided Associated with the medium access sub-control unit, and wherein at least one second medium access control buffer memory is allocated to the automatic repeat request control unit, the medium access sub-control unit being set up, determine the level of the at least one first medium access control buffer memory and to transmit a level representing information to the transmitting control device, and / or wherein the automatic repeat request control unit is set, the level of the at least one second Medium access control buffer to determine and a level representing In formation to transmit to the transmission control device. Mobile communication system according to claim 3, wherein the automatic repeat request control unit is adapted to perform a hybrid automatic repeat request method. A mobile communication system according to any one of claims 2 to 4, comprising a plurality of medium access control buffer memories, each medium access control buffer memory being provided for latching data of different priority. Mobile radio communication system according to one of claims 1 to 5, wherein the medium access control unit is arranged to transmit the information representing the fill level to the transmission control device only when the level has exceeded a predetermined threshold. A mobile radio communication system according to claim 6, wherein the medium access control unit is arranged to set the threshold value as an integer multiple of data units processed by the medium access control unit. Mobile radio communication system according to one of claims 1 to 7, configured to determine the level of the at least one data buffer and to transmit the information representing the level in addition to a mobile network controller. Mobile radio communication system according to claim 8, wherein the transmission control means is arranged to control the mobile radio transmission resources of the mobile device depending on a control signaling from the mobile network controller. Mobile communication system according to one of claims 3 to 9, in which the information representing the level has one of the following information: The level of each medium access control buffer, The sum of the levels of a portion of the media access control buffers or all medium access control buffers, The sum of the levels of a portion of the first medium access control buffers or all medium access control buffers and the sum of the levels of a portion of the second medium access control buffers or all second medium access control buffers; buffer memory, The sum of the levels of a portion of the media access control buffers or all medium access control buffers multiplexed onto a common medium access control data flow channel. Mobile radio communication system according to one of claims 1 to 10, arranged to transmit the information representing the fill level of the at least one data buffer in response to a predetermined event to the transmission control device. Mobile radio communication system according to claim 11, adapted to transmit the information representing the fill level of the at least one data buffer memory at predetermined times, in particular periodically, to the transmission control device. Mobile radio communication system according to one of claims 1 to 12, arranged, a difference information, which is a difference of the level of the at least one data buffer and a predetermined level value or a difference of the level of the at least one data buffer memory and represents a level previously determined and transmitted to the transmission control device, to transmit to the transmission control device. Mobile radio communication system according to one of claims 1 to 13, wherein the mobile radio device is set up as a mobile radio terminal. The mobile communication system of claim 14, wherein the mobile device is configured to receive and transmit data according to a protocol of a cellular mobile radio system. The mobile communication system of claim 15, wherein the mobile device is configured to receive and transmit data according to a protocol of a UMTS mobile communication system. Method for controlling mobile radio transmitter resources in a mobile radio device, In which the level of at least one data buffer memory arranged in the mobile radio device is determined by a medium access control unit which is arranged in the mobile radio device, and In which a information representing the determined fill level is transmitted to a transmission control device, which is arranged in the mobile radio device, and to a mobile radio base station, In which the transmission control device and the mobile radio base station receive the information representing the level, In which the mobile radio transmitter resources used by the mobile radio device are controlled by the transmission control device using the information representing the level, wherein the mobile radio transmitter resources of the mobile radio device are controlled by the mobile radio base station depending on control signaling. A method according to claim 17, wherein the level of the at least one data buffer is determined and the information representing the level is additionally transmitted to a mobile network controller. A method according to claim 18, wherein the mobile radio transmitter resources of the mobile device are controlled by the mobile network controller depending on a control signaling.

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