DE102004044965A1 - Mobile radio system e.g. Global system for mobile communication, has load memory in which weighing values are stored, where values specify portion of bandwidth which is allocated to select data stored in buffer memories - Google Patents

Abstract

The system has a data securing layer-unit and data securing layer-protocol-buffer memories. Weighing values and or weighing ranges of value stored in a load memory specify a portion of data communication bandwidth available for data communication, where the bandwidth is allocated for selecting data stored in the data securing layer-protocol-buffer memories. Transport format-selection unit (308) for selection of transport format. Independent claims are also included for the following: (A) a mobile radio network-control unit with a load memory (B) a method for selection of data.

Description

The The invention relates to a mobile radio device, a mobile radio network control unit and a method of reading data from a plurality of Data link layer protocol buffers.

A such mobile radio device, such a mobile radio network control unit as well as such a method are within the framework of the mobile radio system known as UMTS (Universal Mobile Telecommunications System).

One UMTS mobile system usually has a core network (CN), a mobile access network (UMTS Terrestrial Radio Access Network, UTRAN) as well as a variety of mobile terminals (User Equipment, UE). According to UMTS is a transmission mode provided, referred to as FDD mode (Frequency Division Duplex), in whose framework a separate signal transmission in uplink direction (uplink direction - also called as uplink - called a signal transmission direction from a mobile terminal to a respective base station in the mobile radio access network) and in downlink direction (downlink direction - also referred to as downlink) a signal transmission direction from one each assigned to the mobile terminal Base station in the mobile access network to the mobile terminal) is done by a separate assignment of frequencies or frequency ranges.

For transmission of data between a mobile terminal and a respective base station a mobile radio cell is according to UMTS one Air interface defined, which is divided into three protocol layers. An overview and a detailed description of the air interface protocol layers according to UMTS to be found in [1].

A of the three protocol layers of the UMTS air interface, is called Radio Resource Control (RRC) protocol layer known. The RRC protocol or the RRC protocol layer is for setup and removal also for the (re) configuration of physical channels, transport channels, logical channels, Signaling Radio Bearers and Radio Bearers, as well as for bargaining all parameters of layer 1 and layer protocol layers 2 responsible according to UMTS. To do so, the units of the RRC layer in the mobile radio terminal and mobile network control unit exchange over the Signaling Radio Bearers corresponding to RRC messages, such as described in [3].

To the Purpose of the management, generally 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 network control unit (Radio Network Controller, RNC) at RRC protocol layer level information about reports the traffic in a transport channel. This takes place by means of so-called Measurement Report messages. In In this context, as shown in the following Table 1, the currently competent Mobile network control unit Data buffer levels, i. of the level the data buffer of the RLC units for the relevant transport channel displayed. In other words, means this, that according to [3] of the Mobile network control unit transmitted at RRC layer level will, how many to be transferred Data is currently in the buffer memories of the RLC units of the respective Mobile terminal are located.

Under Mobile broadcasting resources are particular in this context the transmission power of the mobile terminal, the number and the spreading factor the assigned CDMA codes.

Tabelle 1 Table 1 shows an example of such a measurement result list as described in [3]:

Table 1

With This information can help the mobile network control unit accordingly Make configurations of the mobile device, For example, to restrict the usable transport formats of a mobile terminal or to increase or a handover to another cell, a reconfiguration of the dedicated one physical channels or an RRC state change, in particular from a first RRC state CELL_DCH to a second RRC state CELL_FACH.

The Table 1 shown in Table 1 is thus of a RRC unit in the mobile terminal correspond to the RRC unit in the Mobile network control unit and for each radio bearer (RB) the respective RLC data buffer fill level is sent displayed.

In the standardization committee 3GPP (3rd Generation Partnership Project) is currently being dedicated to improving the packet data transfer over, as described in [2] transport channels the uplink, i.e. For the uplink direction at the UMTS air interface for the FDD mode, in terms of increasing data throughput and the transmission speed worked. For a better distinction from the already existing one dedicated transport channel DCH became a new dedicated Transport channel named Enhanced Dedicated Channel (E-DCH) introduced. The essential features of this new transport channel include the application of a hybrid automatic repeat request method (HARQ method) based on the N-channel Stop & Wait method, one from the base station, also called NodeB in UMTS, controlled Scheduling as well as frame lengths of less than or equal to 10 ms.

At the N-channel Stop & Wait HARQ method is a transmission security procedure, in which a mobile terminal a number is configured by N so-called HARQ processes, being a HARQ process one instance of the Stop & Wait procedure represents. The data is sent to the network per HARQ process and cached until acknowledged by the network over correctly received Data (acknowledgment, ACK) is received. Otherwise, i. in the Case of incorrectly received data (Negative Acknowledgment, NACK), the data is sent to the network repeatedly.

At the NodeB controlled scheduling is a procedure wherein scheduling in the mobile terminal, i. the selection of a suitable one Transport format from a set of defined transport formats for the E-DCH transport channel, so controlled that the NodeB depending from the traffic situation in the respective radio cell a mobile terminal the use Transport formats from the set of defined transport formats for the E-DCH transport channel temporary restrict or can expand.

It but so far has not been decided on how in detail the data over the new transport channel E-DCH transmit the UMTS air interface should be. A possible solution It consists of putting the data up according to their priorities various data buffer memories, so-called priority queues (PQ), then split according to their importance, i. their priority, preferably or less preferably processed and thus transferred become.

As discussed above, becomes a transmission protection method (HARQ method) is applied, in which the network the mobile terminal a confirmation of correct or incorrectly received data. Also for this Function includes the mobile terminal various data buffer memory, around the dates until confirmation to cache the correct reception.

Both Functions are redefined within the MAC protocol layer provided partial protocol layer, i. a so-called medium Access Control Enhanced Uplink (MAC-e) entity running on both the terminal side as well as network side, i. is implemented. On the network side is the communication protocol according to MAC-e by leading entity in the NodeB, i. in the UMTS base station.

Especially Is it possible, that a case occurs, that lower priority data may be not transmitted for a very long time can be if in the higher Prioritized priority queue of the MAC-e sublayer constantly data for transmission cached and pending for transfer. In this case overload situations can occur on these priority queues so in the least favorable Case the respective Quality of Service request of certain services not can be ensured.

Further is a so-called Weighted Fair Queuing (WFQ) method known for the prioritization of transmissions Data packets. The data packets can assigned to individual queues and weighted. In this It is known to connect data packets from a data stream lower required Data rate higher to weight and smaller data packets compared to longer frames, also higher to weight.

Of the Invention is based on the problem of a mobile radio device, a mobile radio network control unit and a method for reading out of data from a plurality of backup layer protocol buffers in which it is easy to ensure that all to be transferred Transfer data and still prioritize the data as part of the data transfer when reading from the data link layer buffers the Mobile radio device allows is.

The Problem is posed by the mobile device, by the mobile radio network control unit and by the method of reading data from a plurality Backup Layer Protocol Buffers with Features solved according to the independent claims.

preferred Embodiments of the invention will become apparent from the dependent claims.

A Mobile radio device has at least one data link layer unit on which the different ones each in the mobile radio device provided and implemented protocols of the data protection layer according to the in the mobile device respectively implemented protocol stack performs. Further a plurality of backup layer protocol buffers are provided, which associated with the at least one data link layer unit are.

• • Funkverbindungs-Steuerungsschicht (Radio Link Control Layer, RLC),
• • Paketdaten-Konvergierungs-Protokollschicht (Packet Data Convergence Protocol Layer, PDCP),
• • Broadcast/Multicast-Steuerungsschicht (Broadcast/Multicast Control Layer, BMC),
• • Medium-Zugriffs-Steuerungsschicht (Medium Access Control Layer, MAC).

In this context, for example, in the case where the mobile radio device is set up for communication in accordance with the UMTS communication standard, a data protection layer has one or more of the following sub-layers:

• Radio Link Control Layer (RLC),
• Packet Data Convergence Protocol Layer (PDCP),
• Broadcast / Multicast Control Layer (BMC),
• • Medium Access Control Layer (MAC).

Further a weighting memory is provided in the mobile radio device, in which weighting values and / or weighting value ranges are stored are each a weighting value and / or a weighting range one of the backup layer protocol buffers assigned. In other words this means that at least one weighting value and / or a weighting value range each of the in the context of the procedure according to the invention for reading the data cache was taken into account Data link layer protocol buffer are assigned / is.

In In this context, it should be noted that the invention relates to both all as well as only one or more sublayers of each Backup layer with, for example, the sublayers mentioned above or also the sub-layers of the medium access control layer described below can be. In other words This means that in each sub-layer, individually or in all sub-layers together the buffer memory provided in the respective sub-layer in each case a weighting value and / or a weighting value range can be assigned.

Farther there is provided a backup layer protocol buffer readout device which is set up to store in the data link layer protocol buffers cached data according to a through the priorities specified order from the backup layer protocol buffers reads. Using the weighting values and / or weighting ranges in each case a proportion of the total data transmission bandwidth available for data transmission each for reading out the data stored in the respective data protection layer protocol buffer memory Data allocated, i. is reserved.

in the This description is under a priority queue assigned priority the relative or absolute meaning of the cache in the respective cached priority queue.

Under a weighting value is an indication in the context of this description a data transmission bandwidth to understand which in each case for the read out in the respective Backup Layer Log Cache stores data allocated, in other words, should be reserved.

In the context of this description, a weighting value range is an indication of an inter to be understood as a data transmission bandwidth within which the data to be allocated in each case for reading out the data transmission bandwidth stored in the respective data protection layer protocol buffer memory can be selected as permissible.

In a mobile radio device, which preferably as a mobile radio base station is set up, for example in the cellular mobile radio system UMTS, also referred to as NodeB, is also at least one backup layer unit intended. Furthermore, a weighting memory is provided, in which Weighting values and / or weighting value ranges are stored, where with the weighting values and / or with the weighting value ranges in each case a share of the total data transmission of another mobile radio device, preferably a mobile radio terminal, available data transmission bandwidth is specified, which in each case for reading the in the respective Backup Layer Protocol Buffers stored data be allocated in the other mobile device, vividly reserved, be should. Furthermore, a weighting transmission device is provided, which is set up to transmit the weighting values and / or the weighting value ranges to the other Mobile device.

A Cellular network control unit also has a weighting memory in which weighting values and / or weighting value ranges are stored with the weighting values and / or the weighting value ranges in each case a share of the total for data transmission of another mobile device data transmission bandwidth to be used is specified, which in each case for reading the in the respective Data link layer protocol buffer allocated data stored in the other mobile radio device shall be. Furthermore, a weighting transmission device is provided, which is set up to transmit the weighting values and / or the weighting value ranges to the other Mobile device.

In a method for reading out data from a plurality of data link layer protocol buffers associated with at least one data link layer unit, the following steps are performed in a mobile radio device:
Each data link layer buffer is allocated a weighting value and / or weighting value range.

The Cached data in the buffer memories are stored in accordance with a indicated by the weight values and / or weight value ranges Order read using the weighting values and / or the weighting value ranges in each case a share of the total data transfer available Data transfer bandwidth is specified, which in each case for reading the in the respective Backup Layer Log Cache stores data is allocated.

The respectively assigned data transmission bandwidths are preferably always greater than zero. In one embodiment of the invention, it is in the case where temporary no data transmitted by a particular service is provided possibly giving the mobile device temporarily a data transmission bandwidth from the network equal to zero Hz for a specific data buffer can be assigned.

In In this context, it should be noted that the data link layer protocol buffers of a or multiple sub-protocol layers and / or the weighting memory as a shared memory with each of the different memories logically assigned memory areas can be set up or also as a separate store.

clear The invention can be seen in that due to the allocation a defined data transmission bandwidth preferably each greater than zero Hz for each buffer in which data is cached and from which buffer memory data are read out, it is ensured that actually data is read from all buffer memories and the transmission medium, i.e. in this case preferably the one or more physical units Layer and thus the physical transmission medium, in particular a radio interface, fed become.

Consequently is excluded that data, which is a data buffer cached with very low prioritization, at all not or only significantly delayed be transmitted to another mobile device.

In particular, the use of the method for controlling the reading out of the buffer memory of the data protection layer is suitable for use in a mobile radio terminal, wherein the weighting value ranges or the weighting values are preferably from the UTRAN, particularly preferably by a mobile radio network control unit and / or be specified by the UMTS base station.

• • Funkverbindungs-Steuerungseinheit (Ressource Link Control, RLC),
• • Paketdaten-Konvergierungs-Protokolleinheit (Packet Data Convergence Protocol, PDCP),
• • Broadcast/Multicast-Steuerungseinheit (Broadcast/Multicast Control, BMC).

According to one embodiment of the invention, the at least one data link layer unit is designed as one of the following units:

• Radio link control unit (RLC),
• Packet Data Convergence Protocol (PDCP),
• • Broadcast / Multicast Control Unit (BMC).

• • Medium-Zugriffs-Steuerungs-d-Teil-Protokollschicht (MAC dedicated Layer),
• • Medium-Zugriffs-Steuerungs-c/sh-Teil-Protokollschicht (MAC control/shared),
• • Medium-Zugriffs-Steuerungs-b-Teil-Protokollschicht (MAC broadcast), und/oder
• • Medium-Zugriffs-Steuerungs-e-Teil-Protokollschicht (MAC enhanced uplink).

According to another embodiment of the invention, at least one data link layer unit is configured as a medium access control unit, wherein the medium access control unit may be configured as a unit in one of the following sub-protocol layers of the medium access control layer:

• Medium Access Control (D) protocol layer (MAC dedicated layer),
• Medium Access Control c / sh Part Protocol Layer (MAC control / shared),
• Medium Access Control B Part Protocol (MAC broadcast) layer, and / or
• • Medium access control e-part protocol layer (MAC enhanced uplink).

Especially in the case where the backup layer unit as a medium access control e-unit is established, it has a medium access sub-control unit and an automatic repeat request control unit. At least one Part of the majority of backup layer protocol buffers are set up as medium access control buffer, in which the data is cached. In other words, means this, that the buffers in the unit for splitting the data to the individual differently prioritized data buffer memory the MAC-e protocol layer are provided and / or as the buffer memory of the ARQ processes in the MAC-e protocol unit.

The Automatic repeat request control unit is preferably like according to MAC-e set up to perform a hybrid automatic repeat request (HARQ) method.

Further a transport format memory is preferably provided, in which Transport formats are stored, each transport format data transmission characteristics contains which for data transmission according to one respective transport format are used. In other words, means This is that in each transport format the control parameters for Setting the one used in each medium access control layer Parameter for mapping the to be transmitted Data on the transport channels, which for data transmission are used in the physical layer, are included For example, the block size, the Number of blocks in a set of blocks and an indication of the transmission time interval (Transmission Time Interval, TTI).

In the respective backup layer, preferably in the MAC e-part protocol layer is also according to a Embodiment of the invention, a transport format selection unit for selecting a or several transport formats from a set of predefined data transfer permissible Transport formats provided.

According to one Another embodiment of the invention is a weighting adjustment unit for predetermining the weighting values and / or the weighting value ranges according to a for data transmission the quality of service used, in other words for example, according to a in the context of the respective mobile radio system for data transmission provided and characterized by the respective quality of service provided Transport classes, provided. That way, one becomes particularly simple and efficient processing of the data in the backup layer buffer memories as well a simple and reliable Signaling of the respective weighting of the buffer memory achieved under warranty a complete and timely transmission the data buffered in the respective buffer memories according to the Data respectively assigned prioritization.

The Weight adjusting unit is preferably arranged such that it specifies weighting values which are within a respective one Weighting range are. In this way, the weighting adjustment unit and thus the mobile device flexibly considered the respective Buffers store different weighting values and therefore different ones Data transfer bandwidth allocate, by specifying the respective weight value ranges and related thereto by specifying the respective data transmission bandwidth ranges an optimization of the readout and thus the data transfer is made possible by the mobile device to, for example, a mobile radio base station.

Further is according to one another embodiment of the invention, a transmission control device, preferably set up according to the radio Resource Control Layer according to UMTS, for controlling mobile radio transmitter resources of the mobile radio device, intended.

The Transmit control means is arranged to provide weighting values and / or weight ranges from another mobile device, preferably a mobile radio station, particularly preferably one Mobile Network Control Unit receives and the weight setting unit transmits, i. provides, with which the weighting values and / or weighting value ranges of the other mobile device can be specified.

On this way will be very simple and reliable mobile network side, at the level of the Radio Network Control Protocol (RNC) according to UMTS the Controlling the readout behavior of the data buffers in the backup layer the mobile terminals allows dependent from the data traffic and in the respective mobile radio cell prevailing transmission quality, for which Mobile cell is responsible for the mobile network control unit.

Possibly The mobile network control unit may also activate a handover. Furthermore, can by means of the mobile radio network control unit one or more Transport formats temporary as invalid or by specifying a set of transport formats, wherein the weighting values and / or weighting value ranges are preferably are linked to the respective transport formats, a selection of potential Weighting values / weighting ranges at least partially be specified.

According to one Another embodiment of the invention, it is provided that the Data link layer protocol buffer memory read-out means is set up in the event that in one or none in multiple backup layer protocol buffers to be transferred Data that caches for this or that backup layer protocol cache Share or shares of data transfer bandwidth for the or the data link layer protocol buffers are additionally allocated is cached in which or in which data to be transmitted are.

On this is achieved by reacting dynamically during operation may be that in some buffers currently none to be transferred Data is cached. The for each of these buffers allocated data transmission bandwidths, in other words, Transmitter resources are, in a predeterminable way, particularly preferred even, i. in equal parts, alternatively according to the previous one Buffers allocated portions of data transmission bandwidth to those buffers distributed, in other words become the free data transfer bandwidths divided into the buffer memory, in which data for transmission are cached.

The Mobile radio facilities as well as the mobile radio network control unit are preferably according to one Communication standard for communication according to a cellular mobile radio system, preferably for communication according to the cellular mobile radio system UMTS, set up.

Especially for the Case of the use of the invention in the context of UMTS are important Aspects of the invention vividly seen in that the weighting the data buffer, in particular the priority queues, i. corresponding to the buffer memories in the MAC part protocol layer MAC-e the quality of service requirements, i. the quality of service, which for the respective data are requested for efficient processing the data of the data cached in these data buffers as well as in a very simple signaling of the weighting, i. starting from the weighting values and / or the weighting value ranges from the UMTS base station or the RNC unit.

The Signaling for the configuration of the weighting according to the invention the data buffer in the backup layer, preferably in the MAC e-part protocol layer takes the form of radio resource control messages (RRC messages) from the mobile network control unit to the mobile terminal, Also referred to as user equipment (UE), as well as over the so-called Iub interface between the wireless network control unit the associated UMTS base station NodeB.

The weightings, ie the weighting values or the weighting value ranges, which are assigned to the respective data buffer memories of the data link layer, preferably the priority queues in the MAC-e-part protocol layer, can be explicitly defined as a defined percentage of the overall data Available and used data transmission bandwidths are signaled. For example, if three backup layer buffers are provided, the first highest priority buffer 50%, the second highest level backup layer protocol buffer 2525, and the third data buffer in which lowest priority data is cached will be allocated 25% of the total available transmission bandwidth.

The Data, which within a defined time interval over the E-Dedicated Channel (E-DCH) transfer be set in this case according to the signaled Weighting (the signalized weighting values and the associated the data transfer bandwidths allocated to respective data buffers) proportionately from the data stored in the respective data buffers cached together.

In an advantageous variant is a priority queue buffer memory in the MAC e-part protocol layer per traffic class (Traffic Class).

The Weighting of data buffers in the MAC e-part protocol layer are not explicitly signaled in this case, but it takes place a predetermined assignment of the traffic class to the weights the corresponding priority queues and associated with one Allocation of the provided according to the priorities Data transfer bandwidth.

The according to UMTS Data traffic classes are explained in more detail below.

It are currently in accordance with UMTS following four traffic classes planned: Conversational, Streaming, Interactive, Background.

The Assignment of the weighting values to the priority queues according to the traffic classes For example, if streaming data is 40%, Conversational data at 30%, interactive data at 20% and background data weighted at 10%. In other words, this means that the streaming data 40% of the total available standing data transmission bandwidth the conversational data is 30%, the interactive data 20% and the background data 10%.

If a priority queue temporarily no data, in other words, if in the buffer memory this priority queue no data is currently buffered, get according to one Embodiment of the invention, the other priority queues more bandwidth assigned as described above. This can be, for example such that the remaining available bandwidth, i. the data transfer bandwidth not required by the priority queues with "empty" buffers is split to the other data buffer, preferably equal parts.

Around the weights, i. the weighting values of each priority Queues, generally the Backup Layer Protocol Cache dynamically the current transmission conditions, in particular to the current data buffer levels in the MAC-e sublayer as well as to the transmission situation in to be able to adapt the respective mobile radio cell, are illustratively preferably for each the considered and considered Data buffer, alternatively for at least a part of considered Data buffer weighting bands, in the context of this description also referred to as weight value ranges, introduced within the weighting depending on from the respective data buffer memory level, the data transmission situation in the respective mobile radio cell and the weightings of the others Priority queues, generally the other backup layer protocol buffers through the mobile network, in particular through the UMTS base station NodeB lowered or increased can be.

Configured for this the mobile radio network control unit RNC the UMTS base station by means of the Iub interface with the weighting bands to be used, i. the weight value ranges within which the UMTS base station the Mobile radio terminal, which in the context of an uplink communication connection data to the UMTS mobile station sends, then very quickly and dynamically the respectively used weighting values, i.e. in other words the weights assigned to the buffer memories and thus the respective ones used and reconfigured data transmission bandwidths.

If there are no or only very few data in the data buffer of a priority queue, then this priority queue, and thus the respective data link layer protocol buffers, are assigned only a small weighting within the weighting band, ie a small value of the weighting value within the weighting value range, preferably a weighting value lying at the lower limit of the weighting value range. If the data buffer level in the respective backup protocol buffer memory is very high, this priority queue, generally this buffer memory, is assigned a higher weighting within the weighting band and thus a higher weighting value within the weighting value range, preferably a weighting value that is at upper limit of the weighting range. Preferably, the dynamic adjustment of the weighting is controlled by the weighting bands by the mobile radio network, in particular by the UMTS base station.

at the change The weighting of a priority queue becomes the weights, i. takes into account the weighting values of the other priority queues and, if appropriate, adjusted accordingly.

• • Der prozentuale Füllstand des jeweiligen Datenpufferspeichers wird Eins-zu-Eins auf die Gewichtung der Priority Queue innerhalb des Gewichtungs-Bandes abgebildet.
• • Es werden Priority-Queue-Datenpufferspeicher-Schwellenwerte definiert, bei deren Überschreitung die Gewichtung der jeweiligen Priority Queue diskret in vorgegebener Weise, d.h. um einen vorgebbaren Wert, erhöht bzw. erniedrigt wird.

In particular, two alternatives are provided for adapting the weighting of a priority queue to the data buffer fill level of the respective data buffer memory:

• • The percentage level of each data buffer is mapped one-to-one to the weight of the priority queue within the weighting band.
• • Priority queue data buffer memory thresholds are defined, above which the weighting of the respective priority queue is increased or decreased discretely in a predefined manner, ie by a predefinable value.

It It should be noted in this context that the sum of all weightings, which the priority queues, generally the data link layer protocol buffers are not allowed to exceed 100% at any time.

comes it due to overlaps the weighting bands Priority queues at equal weights, these are preferably processed equally, by the same of all priority queues Number of data packets, i. is read out. clear may be a fundamental aspect of the invention in the application of the known weighted fair queuing principle, in which the data streams the individual Queues are assigned, with each queue assigned a weighting which is a defined percentage of the total transmission bandwidth represents the specific scope of the data protection layer in a mobile communication system, preferably in a cellular mobile communication system, particularly preferably a UMTS mobile communication system become.

The Mobile radio device is preferably set up as a mobile radio terminal, which is particularly preferred, data according to one or more protocols a cellular mobile radio system, for example GSM GPRS or UMTS, to receive and send.

Especially Preferably, the mobile terminal is thus set up for communication in a UMTS mobile radio system, in other words, the mobile radio terminal is set up, Data according to one or several protocols of a UMTS mobile radio system to receive and send.

embodiments The invention is illustrated in the figures and will be described below explained in more detail.

It demonstrate

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 RRC message for signaling the weighting values and the weight value ranges according to an embodiment of the invention.

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) represents the protocol layer 1.

The above the physical layer 201 arranged protocol layer is the backup 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 uppermost layer of the UMTS air interface Uu is the mobile radio network layer (according to OSI reference model protocol layer 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 described in [1].

each Protocol layer or each entity (entity) of a respective protocol layer has certain predefined functions in the context of a mobile 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, which characterize which type of file is the transported data. 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 pictured, as well the available transmission power of the mobile terminal 118 (UE). Among other things, in a transport format it is determined 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 transmitted via the dedicated dedicated channels DCH and DCCH (Dedicated Control Channel) 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 of 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 [3].

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. In doing so, the serving mobile network control unit (Serving Radio Network Controller, SRNC) displays the RLC data buffer levels of the relevant transport channel, ie it shows how much data is currently in the respective RLC data buffers of the mobile radio terminal 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 handover to another mobile radio cell, to reconfigure the dedicated physical channels, or to perform an RRC state transition from a first state CELL DCH to a second state CELL_FACH.

In the standardization body 3GPP is currently improving the packet data transfer via dedicated transport channels the uplink for the UMTS FDD mode worked.

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 cache data until confirmation of correct receipt. 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 process. 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 gives them via the E-DCH transport channel 303 to the physical layer 201 Next, where they then have dedicated physical channels over the air interface 117 be transferred 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 ,

If a mobile subscriber using the mobile terminal 118 , preferably in the mobile radio device described above, uses a service in accordance with UMTS, then the UMTS mobile radio core network is used 105 this requested service is provided with a predetermined, defined quality of service (QoS) that meets the quality of service requirements of the corresponding service.

• • Conversational: Die Conversational-Verkehrsklasse ist für Echtzeit-Anwendungen zwischen Teilnehmern vorgesehen. Dazu gehören Anwendungen wie Sprachtelephonie und Videotelephonie. Kommunikationsverbindungen dieser Verkehrsklasse benötigen eine konstante, d.h. garantierte Datenübertragungsrate und damit Datenübertragungsbandbreite mit kurzen zeitlichen Verzögerungen bei der Datenübertragung. Andererseits ist eine Conversational-Anwendung unempfindlich gegenüber kurzzeitigen Datenübertragungsfehlern.
• • Streaming: Die Streaming-Verkehrsklasse ist für Echtzeit-Verteildienste wie Video und Audio vorgesehen, bei der Daten unidirektional, beispielsweise von einem Server-Rechner zu einem Client-Rechner übertragen werden, wobei die Echtzeit-Verteildienste es dem Empfänger gestatten, die Daten schon während der Übertragung abzuspielen und einem Benutzer der Empfänger-Mobilfunkeinrichtung darzustellen. Beim Streaming wird ein kontinuierlicher Datenstrom aufgebaut, so dass Kommunikationsverbindungen diese Verkehrsklasse eine konstante, d.h. garantierte Datenübertragungsrate und damit Datenübertragungsbandbreite erfordern. Eine Streaming-Anwendung ist jedoch unempfindlich gegenüber kurzen Datenübertragungsverzögerungen und stellen in dieser Hinsicht keine strengen Anforderungen im Vergleich zu einer Anwendung der Conversational-Verkehrsklasse.
• • Interactive: Die Interactive-Verkehrsklasse ist für interaktive Anwendungen, wie beispielsweise Internet-Surfen, Spiele und Chat vorgesehen. Die Kommunikationsverbindungen in dieser Verkehrsklasse benötigen keine konstante Datenübertragungsrate und damit Datenübertragungsbandbreite, stellen jedoch hohe Anforderungen an die Datenübertragungssicherheit, d.h. sie erfordern eine sehr niedrige Bit-Fehlerrate.
• • Background: Anwendungen der Background-Verkehrsklasse übertragen Daten mit niedriger Priorität im Hintergrund. Beispiele sind der Download von Daten, der Empfang von Email (Electronic Mail) und SMS (Short Message Service). Kommunikationsverbindungen dieser Verkehrsklasse benötigen keine konstante Datenübertragungsrate und damit Datenübertragungsbandbreite und sind unempfindlich gegenüber zeitlichen Verzögerung im Rahmen der Datenübertragung. Andererseits stellen sie hohe Anforderungen an die Übertragungssicherheit, d.h. sie erfordern eine sehr niedrige Bit-Fehlerrate.

According to UMTS, the following four traffic classes are currently defined for the classification of services provided, which differ according to their specific data transmission characteristics and quality requirements:

• • Conversational: The conversational traffic class is intended for real-time applications between participants. These include applications such as voice telephony and video telephony. Communication links of this traffic class require a constant, ie guaranteed data transmission rate and thus data transmission bandwidth with short time delays in data transmission. On the other hand, a conversational application is insensitive to transient data transmission errors.
• • Streaming: The streaming traffic class is intended for real-time distribution services such as video and audio, where data is transferred unidirectionally, for example, from a server machine to a client machine, with the real-time distribution services allowing the recipient to retrieve the data during the transmission and to represent a user of the recipient's mobile device. When streaming a continuous data stream is built so that communication links this traffic class require a constant, ie guaranteed data transfer rate and thus data transmission bandwidth. However, a streaming application is insensitive to short data transmission delays and, in this regard, does not impose stringent requirements compared to using the conversational traffic class.
• • Interactive: The interactive traffic class is for interactive applications such as Internet surfing, games, and chat. The communication links in this traffic class do not require a constant data transmission rate and thus data transmission bandwidth, but place high demands on the data transmission security, ie they require a very low bit error rate.
• • Background: Background traffic applications transmit low-priority data in the background. Examples are the download of data, the receipt of e-mail (electronic mail) and SMS (short message service). Communication links of this traffic class do not require a constant data transmission rate and thus data transmission bandwidth and are insensitive to time delay in the context of data transmission. On the other hand, they place high demands on the transmission reliability, ie they require a very low bit error rate.

in the Detail is the quality of service, the quality of service, one provided or provided communication service on the basis of various Attributes such as the maximum bitrate that guaranteed Bitrate or the maximum transmission delay for each Communication service described.

Thus, if a mobile subscriber from the mobile core network 105 a requested communication service with a defined quality of service QoS is provided, then by the mobile core network 105 set the associated QoS attributes accordingly.

In the establishment of the communication connection (connection establishment) become the participant and thus the subscriber mobile terminal 118 from the mobile network control unit 106 . 107 On the network side, ie on the UTRAN side, the corresponding mobile radio resources required for the communication connection, such as the required CDMA spreading codes, are allocated and the protocols of the Protocol layers 1 and 2 are configured such that the communication service with the negotiated quality of service can be secured during the duration of the communication connection.

The negotiated quality of service of a communication service may be during an existing communication connection from the mobile core network 105 reconfigured, for example due to scarce mobile radio resources or increasing interference in the mobile radio cell.

Referring again to 3 Details on the Stop & Wait procedure (also referred to as Send & Wait procedure) and the HARQ procedure (Hybrid Automatic Repeat Request procedure) are explained below.

The N-channel Stop & Wait HARQ method is a data transmission back-up method in which in a mobile radio terminal 118 a number of N so-called HARQ processes are configured, each HARQ process representing one instance of the Stop & Wait process.

Per HARQ process will be the data to the communication network, in particular the mobile base station, sent and cached until by the communication network a positive confirmation message about correct Received data (acknowledgment, ACK) is received. Otherwise, i.e. in the case of incorrectly received data, communicated by means of a negative acknowledgment message (Negative Acknowledgment, NACK), the data is repeatedly added sent to the cellular communication network.

The so-called NodeB-controlled scheduling is a method in which the scheduling in the mobile terminal 118 ie the selection of a suitable transport format from a set of defined transport formats for the E-DCH transport channel, in such a way that the NodeB 108 . 109 . 110 . 111 as a function of the traffic situation in the respective mobile radio cell, the mobile radio terminal 118 temporarily restrict the use of transport formats from the set of defined transport formats for the E-DCH transport channel.

Both functions, ie the functionality of the HARQ method and the functionality of the Stop & Wait method, are implemented in the MAC-e (MAC-Enhanced Uplink) sub-protocol layer within the MAC layer, the MAC-e-part protocol layer both terminal side as well as network side exists, that is implemented. On the network side, the MAC e-part protocol layer is in the NodeB 108 . 109 . 110 . 111 ,

3 exemplifies the MAC-e architecture on the terminal side, ie it is illustrated as the functionality of the MAC e-part protocol layer in the mobile terminal 118 is realized.

For the illustrated embodiments, a transmission scenario is assumed in which a user of the mobile terminal 118 uses three packet services in the uplink at the same time, for example, an interactive game play service on the Internet, a service for downloading (downloading) text files, and a service for streaming video data.

This packet data is from the mobile terminal 118 via the E-DCH transport channel 303 to the mobile radio communication network, ie to the serving mobile radio 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 protocol layers underlying the communication layer model.

According to this embodiment, the entity of the MAC e-part protocol layer 300 two MAC-d flows 301 . 302 configured on 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 in the HARQ unit four HARQ processes each configured with a HARQ buffer.

Furthermore, for the E-DCH transport channel 303 a plurality of different Transportforma configured, 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. The data from the MAC-d flows 301 . 302 are assigned to the individual priority queues according to their priority 306 assigned and transmitted.

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 in the MAC-d sub-protocol layer, a priority is assigned, on the basis of which the priority queue distribution unit 305 the distribution of the data to the respective priority queues 306 and thus makes the priority queue buffers with the different priorities. In the data buffers of the priority queues 306 The data is then cached until it is received by the HARQ unit 307 For data transmission retrieved, ie read.

As in 3 and in 4 shown are the mobile terminal 118 from the UTRAN via an RRC message 500 as they are in 5 is shown as an example, the weighting of the individual priority queues 306 (explicit PQ weighting) and additionally the weighting bands, within which the weighting of the priority queues 306 depending on the respective data buffer storage level of the priority queues 306 , the data transmission situation in the respective mobile radio cell and the weights of the other priority queues 306 in the mobile terminal 118 dynamically from the mobile communication network, in particular from the UMTS base station 108 . 109 . 110 . 111 can be decreased or increased (Priority Queue Weighting Band).

The weights, in other words the weighting values 309 and the weight ranges (ie the weight bands) 310 are in a weight memory (not shown) in the mobile terminal 118 saved.

Every priority queue 306 are each a weighting value 309 and a weighting range 310 uniquely assigned.

In 5 is an example of the structure of the RRC message 500 with which the weighting values 309 and the weight value ranges 310 for the respective priority queues 306 to be transmitted.

In this case, it is assumed without restriction of generality that the mobile radio terminal 118 the mobile communication network via corresponding RRC messages, the respective data buffer levels of the data buffer of the individual priority queues 306 regularly, ie preferably at predetermined times or on request of the mobile radio network control unit 308 , signaled.

• • Eine Angabe der jeweiligen Priority Queue 501
• • eine Angabe des jeweiligen Gewichtungswerts, d.h. Gewichtungswert 502, und
• • eine Angabe des Gewichtungs-Bandes, d.h. des Gewichtungswertebereichs 503, wobei der Gewichtungswertebereich 503 gegeben ist durch eine Angabe eines unteren Gewichtungswertes 504, d.h. eines minimal zulässigen Gewichtungswertes sowie durch einen oberen Gewichtungswert 505, d.h. einen maximal zulässigen Gewichtungswert.

As in 5 contains the RRC weight value message 500 following data:

• • An indication of the respective priority queue 501
• An indication of the respective weighting value, ie weighting value 502 , and
• An indication of the weighting band, ie the weighting range 503 , wherein the weighting range 503 is given by an indication of a lower weighting value 504 ie, a minimum allowable weight value and an upper weight value 505 ie a maximum allowable weight value.

• • für die erste Priority Queue A 50% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite,
• • für die zweite Priority Queue B 30% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite,
• • für die dritte Priority Queue C 15% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite und
• • für die vierte Priority Queue D 5% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite.

For the in 3 illustrated embodiment is assumed that for the four priority queues 306 the following values are configured: On the one hand, the weighting values 309

• • for the first priority queue A 50% of the total available data transmission bandwidth,
• • for the second priority queue B, 30% of the total available data transmission bandwidth,
• • for the third priority queue C, 15% of the total available data transmission bandwidth and
• • for the fourth priority queue D 5% of the total available data transmission bandwidth.

• • der ersten Priority Queue A ein erster Gewichtungswertebereich von 30% bis 60% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite,
• • der zweiten Priority Queue B 10% bis 40% der gesamten zur Verfügung stehenden Datenübertragungsbandbreite,
• • der dritten Priority Queue C 5% bis 30% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite, und
• • der vierten Priority Queue D 2% bis 15% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite.

Further, the individual priority queues 306 following weighting values 310 assigned to:

• The first priority queue A has a first weighting range of 30% to 60% of the total available data transmission bandwidth,
• The second priority queue B 10% to 40% of the total available data transmission bandwidth,
• • the third priority queue C 5% to 30% of the total available data transmission band wide, and
• • the fourth priority queue D 2% to 15% of the total available data transmission bandwidth.

It should again be noted that when varying the weighting values within the respective weighting value ranges 310 care must be taken that the sum of the weighting values of the four, according to 4 the three, weighting values 309 do not exceed 100%, since otherwise more data transmission bandwidth would have to be allocated than is available at all.

According to these embodiments The invention has different definitions for priority queues intended.

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 together, 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.

At the in 4 illustrated embodiment are thus three priority queues 306 each provided with a weighting value 309 and a weighting range 310 be assigned in accordance with the manner outlined above.

• • der ersten Priority Queue E 50% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite,
• • der zweiten Priority Queue F 25% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite, und
• • der dritten Priority Queue G 25% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite.

According to this embodiment, the individual priority queues 306 following weighting values 309 assigned to:

• • the first priority queue E 50% of the total available data transmission bandwidth,
• • the second priority queue F 25% of the total available data transmission bandwidth, and
• • the third priority queue G 25% of the total available data transmission bandwidth.

• • der ersten Priority Queue E ein Gewichtungswertebereich von 30% bis 60% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite,
• • der zweiten Priority Queue F ein Gewichtungswertebereich von 10% bis 40% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite, und
• • der dritten Priority Queue G ein Gewichtungswertebereich von 10% bis 40% der insgesamt zur Verfügung stehenden Datenübertragungsbandbreite.

Further, the individual priority queues 306 the following weight value ranges 310 , ie weighting bands assigned:

• The first priority queue E has a weighting value range of 30% to 60% of the total available data transmission bandwidth,
• The second priority queue F has a weighting range of 10% to 40% of the total available data transmission bandwidth, and
• The third priority queue G has a weighting range of 10% to 40% of the total available data transmission bandwidth.

As part of reading out the data from the respective priority queue data buffers, the data is processed according to the respective one for each priority queue 306 currently assigned weighting value 309 allocated data transmission bandwidth.

This also means that during the existing mobile radio communication connection for transmitting the user data per time unit TTI, the data packets buffered in the priority queue buffer memories from the different priority queues 306 according to their explicit weighting (ie the weight values) and the selected transport format proportionally over the E-DCH transport channel 303 be transmitted.

If there is very little data in the data buffer of a priority queue temporarily 306 present, this priority queue becomes 306 from the UMTS base station 308 . 309 . 310 . 311 only a small weight within the weighting band, ie within the weighting range.

This means that a weight value is selected and the respective priority queue 306 assigned near the lower, ie minimum allowable weight value 504 of the weighting range 503 lies.

Is the data buffer level of the data buffer of the respective priority queue 306 on the other hand temporarily very high, becomes the priority queue 306 from the UMTS base station 308 . 309 . 310 . 311 assigned a higher weighting within the weighting band, preferably a weighting value that is close to the upper, ie maximum allowable weighting value 505 of the respective weighting value range 503 located.

• • Die Gewichtung der Datenpufferspeicher, insbesondere der Datenpufferspeicher der Priority Queues in der MAC-e-Teil-Protokollschicht auf Basis der Dienstqualität eines angeforderten Kommunikationsdienstes.
• • Das Abarbeiten der in den Datenpufferspeichern der Priority Queues zwischengespeicherten Daten und deren Übertragung über den E-DCH-Transportkanal auf Basis der Gewichtung der Datenpufferspeicher, anders ausgedrückt auf Basis der Gewichtungswerte.
• • Die Signalisierung der Gewichtung, d.h. der Gewichtungswerte der Datenpufferspeicher der Priority Queues mittels RRC-Nachrichten von der Mobilfunknetzwerk-Kontrolleinheit RNC 106, 107 an das Mobilfunk-Endgerät 118 sowie über die Iub-Schnittstelle 113, 114, 115, 116 zwischen der Mobilfunk-Netzwerk-Kontrolleinheit 106, 107 an die zugehörigen UMTS-Basisstationen 108, 109, 110, 111.
• • Das Zuordnen zwischen Datenverkehrsklasse und Gewichtungswert der Priority Queues.
• • Das gleichmäßige Aufteilen der zur Verfügung stehenden Datenübertragungsbandbreite, wenn ein Pufferspeicher einer Priority Queue temporär keine zu übertragenden Daten zwischengespeichert hat.
• • Das erstmalige Einführen von Gewichtungs-Bändern, d.h. von Gewichtungswertebereichen, innerhalb derer die Gewichtung der Priority Queues dynamisch in Abhängigkeit von dem jeweiligen Datenpufferspeicher-Füllstand, der Übertragungssituation in der Mobilfunkzelle und den Gewichtungen der anderen Priority Queues durch das Netzwerk, vorzugsweise durch die jeweilige UMTS-Basisstation 108, 109, 110, 111 erniedrigt bzw. erhöht werden kann.

The following summarized aspects may be considered to be particularly advantageous in the context of the invention:

• The weighting of the data buffer memories, in particular the data buffer memories of the priority queues in the MAC-e sub-protocol layer, based on the quality of service of a requested communications service.
• The processing of the data buffered in the data buffers of the priority queues and their transmission via the E-DCH transport channel on the basis of the weighting of the data buffer memory, in other words based on the weighting values.
• The signaling of the weighting, ie the priority queue, of the data buffer memories by means of RRC messages from the mobile radio network control unit RNC 106 . 107 to the mobile terminal 118 as well as via the Iub interface 113 . 114 . 115 . 116 between the mobile network control unit 106 . 107 to the associated UMTS base stations 108 . 109 . 110 . 111 ,
• • The assignment between the traffic class and the weight value of the priority queues.
• • The equal distribution of the available data transmission bandwidth if a buffer memory of a priority queue has temporarily stored no data to be transmitted.
• The initial introduction of weight bands, ie of weight ranges, within which the weighting of the priority queues dynamically depending on the respective data buffer fill level, the transmission situation in the mobile radio cell and the weightings of the other priority queues through the network, preferably by the respective UMTS base station 108 . 109 . 110 . 111 can be lowered or increased.

• [1] 3GPP TS 25.301, Technical Specification, Third Generation Partnership Project; Technical Specification Group Radio Access Network; Radio Interface Protocol Architecture (Release 1999);
• [2] RP-040081, Proposed Work Item on FDD Enhanced Uplink, TSG-RAN Meeting #23, Phoenix, USA, 10.-12. März 2004;
• [3] 3GPP TS 25.331, Technical Specification, Third Generation Partnership Project; Technical Specification Group Radio Access Network; RRC Protocol Specification (Release 1999).

This document cites the following publications:

• [1] 3GPP TS 25.301, Technical Specification, Third Generation Partnership Project; Technical Specification Group Radio Access Network; Radio Interface Protocol Architecture (Release 1999);
• [2] RP-040081, Proposed Work Item on FDD Enhanced Uplink, TSG-RAN Meeting # 23, Phoenix, USA, 10-12. March 2004;
• [3] 3GPP TS 25.331, Technical Specification, Third Generation Partnership Project; Technical Specification Group Radio Access Network; RRC Protocol Specification (Release 1999).

100

mobile system

101

Mobile network subsystem

102

Mobile network subsystem

103

Iu interface

104

Iu interface

105

Mobile core network

106

Mobile network control unit

107

Mobile network control unit

108

UMTS base station

109

UMTS base station

110

UMTS base station

111

UMTS base station

112

Lur interface

113

Lub interface

114

Lub interface

115

Lub interface

116

Lub interface

117

Uu interface

118

Mobile radio terminal

200

Protocol layer arrangement

201

physical layer

202

Data link layer

203

MAC protocol layer

204

RLC protocol layer

205

PDCP protocol layer

206

BMC protocol layer

207

RRC protocol layer

208

logically channel

209

transport channel

210

radio Bearer

211

Control level

212

User-level

213

signaling Radio Bearer

300

MAC-e sub-layer protocol

301

MAC-d Flow

302

MAC-d Flow

303

E-DCH transport channel

304

MAC Control Service Access Point

305

Priority Queue Distribution Unit

306

Priority queue

307

HARQ unit

308

Transport format selection unit

309

weight value

310

Weighting value range

Claims (15)

mobile radio device With at least one data link layer unit, • with a A plurality of backup layer protocol buffers which are at least associated with a backup layer entity, • with a Weighting memory, in which weighting values and / or weighting value ranges are stored, each having a weighting value and / or weighting range associated with one of the data link layer protocol buffers is and • With a backup layer protocol cache readout device which is set up to store in the data link layer protocol buffers cached data according to a indicated by the weight values and / or weight value ranges Read order from the backup layer protocol buffers, where with the weighting values and / or the weighting ranges in each case a proportion of the total data transmission bandwidth available for data transmission is specified, which in each case for reading the in the respective Backup Layer Log Cache stores data is allocated. Mobile radio device according to claim 1, wherein the data link layer unit is designed as one of the following units, • Radio communication control unit Packet data convergence protocol unit, • Broadcast / Multicast Control Unit. Mobile radio device according to claim 1, wherein the data link layer unit as a medium access control unit is trained. Mobile radio device according to claim 3, wherein the medium access control unit comprises a medium access sub-control unit and an Au tomatic repeat request control unit, in which at least part of the plurality of data link layer protocol buffers are set up as medium access control buffer memories in which the data is buffered. Mobile radio device according to claim 4, wherein the automatic repeat request control unit is set up to perform a hybrid automatic repeat request method. Mobile radio device according to one of claims 3 to 5, with a transport format storage, in which transport formats which data transmission characteristics are stored included, which for data transmission according to one respective transport format are used. Mobile radio device according to one of claims 3 to 6, with a transport format selection unit for selecting one or several transport formats. Mobile radio device according to one of claims 1 to 7, with a weight setting unit for specifying the weight values and / or weight value ranges according to one for data transmission respectively used quality of service. Mobile radio device according to claim 8, wherein the weighting adjustment unit is set up to give weighting values which within a respective weighting range. Mobile radio device according to one of claims 1 to 9, with a transmission control device for controlling mobile radio transmission resources the mobile radio device, which set transmission control device is, weighting values and / or weighting ranges of one receive other mobile device and the weight adjustment unit to convey with which the weighting values and / or weighting value ranges of the other mobile device can be specified. Mobile radio device according to one of claims 1 to 10, in which the backup layer protocol buffer readout device is set up so that for the case that in one or more data link layer protocol buffers none to be transferred Data is cached for this or that backup layer protocol cache allocated proportion or parts of the data transmission bandwidth for or additionally allocates the backup layer protocol buffers is cached in which or which data to be transmitted are. mobile radio device With at least one data link layer unit, • with a Weighting memory, in which weighting values and / or weighting value ranges are stored with the weighting values and / or the weighting value ranges in each case a share of the total for data transmission of another mobile device available Data transfer bandwidth is specified, which in each case for reading the in the respective Backup Layer Log Cache stores data is to be allocated, and • With a weighting transmission device, which is set up to transmit the weighting values and / or the weighting value ranges to the other Mobile device. Mobile radio device according to claim 12, furnished as a mobile base station. Mobile network control unit • with a Weighting memory, in which weighting values and / or weighting value ranges are stored with the weighting values and / or the weighting value ranges in each case a share of the total for data transmission of another mobile device available Data transfer bandwidth is specified, which in each case for reading the in the respective Backup Layer Log Cache stores data is to be allocated, and • With a weighting transmission device, which is set up to transmit the weighting values and / or the weighting value ranges to the other Mobile device. A method for reading out data from a plurality of data link layer protocol buffers associated with at least one data link layer unit, performed in a mobile radio device, wherein a weighting value and / or weighting value range is assigned to each data link layer buffer memory, and In which the data is read out of the data link layer protocol buffers according to an order indicated by the weighting values and / or weighting value ranges, the weighting values and / or the weighting value ranges respectively indicating a proportion of the total data transmission bandwidth available for the data transmission Read out the data stored in the respective data link protocol buffer memory.