MX2008007799A - Allocating radio resources in mobile communications system - Google Patents

Abstract

Allocating radio resources in a mobile communication system, comprises transmitting first information to a network, wherein the first information is utilized by the network to allocate radio resources to a mobile terminal for allowing communication between the mobile terminal and the network, and receiving second information from the network, wherein the second information is related to an allocation of radio resources for the mobile terminal.

Description

ALLOCATION OF RADIO RESOURCES IN MOBILE COMMUNICATION SYSTEM DESCRIPTIVE MEMORY The present invention relates to the allocation of radio resources in a mobile communication system. Figure 1 illustrates an example of the network structure of a Universal Evolved Telecommunications System (E-UMTS). The E-UMTS was developed from a Universal Telecommunications System (UMTS, for its acronym in English). The standardization of the E-UMTS is currently being developed by the Third Generation Common Project (3GPP, for its acronym in English). The E-UMTS can also be called a Long Term Evolution (LTE) system. With respect to Figure 1, an E-UMTS network may consist of an Evolved UMTS terrestrial radio access network (E-UTRAN) and a core network (CN). The E-UTRAN includes a base station (eNode B or eNB). The CN includes an Access Door (AG), which is a node adapted for the registration of the user of a user equipment (UE, for its acronym in English). The AG can be divided into a first portion to process the user traffic and a second portion to process the control traffic. The portion of AG to process the user traffic and the portion of AG to process the control traffic, can be connected to each other through a communication interface. There may be one or more cells in a single eNode B (eNB). An interface can be used to transmit the user traffic and / or control traffic between the eNode Bs. In addition, in the E-UMTS of the figure, an interface can be used to discriminate between the E-UTRAN and the CN. The radio interface protocol layers between a mobile terminal and a network can be classified into a layer layer (L1), a second layer (L2) and a third layer (L3) based on three lower layers of an interconnection scheme well-known, as a reference model of open system interconnection (OSI, for its acronym in English). Among these, the first layer provides an information transfer service using a physical layer. A radio resource control layer (RRC) located in the third layer serves to control the radio resources between the mobile terminal and the network. Accordingly, the RRC layer allows an exchange of RRC messages between the mobile terminal and the network. The RRC layer can be located in either eNode B or AG, or be located in one of eNode B and AG. Figures 2 and 3 illustrate architectures for radio interface protocols between a mobile terminal and a UMTS terrestrial radio access network (UTRAN) based on a 3GPP radio access network specification. The radio interface protocols of FIGS. 2 and 3 are formed horizontally from a physical layer, a data link layer and a network layer. Vertically, the radio interface protocols are formed from a user plane to transmit data information and a control plane to transmit control signals. The protocol layers of Figures 2 and 3 can be divided into a first layer (Ll), a second layer (L2) and a third layer (L3) based on three lower layers of a well-known interconnection scheme, such as a model of open system interconnection reference (OSI, for its acronym in English). Hereinafter, the radio protocol layers of the control plane illustrated in Figure 2 and the user plane illustrated in Figure 3 will be explained. As mentioned above, a physical layer provides a transfer service of information to a higher layer. The physical layer is connected to a higher layer, such as a medium access control layer (MAC), through a transport channel. The data is transferred between the MAC layer and the physical layer through the transport channel. The data is also transferred between different physical layers, such as a physical layer of a transmission side and a physical layer of a reception side. The MAC layer is located in the second layer and provides a service through a logical channel to a higher layer, such as a radio link control layer (RLC). The RLC layer it can also be located in the second layer and supports reliable data transmission. Notably, a function performed by the RLC layer can be implemented as a functional block within MAC. In this case, the RLC layer might not exist. One layer of Packet Data Convergence Protocol (PDCP) is located in the second layer above the RLC layer. The PDCP layer is used to effectively transmit data using an IP packet, such as an IPv4 or IPv6, on a radio interface with a relatively small bandwidth. For this purpose, the PDCP layer reduces unnecessary control information through a function, such as header compression. A radio resource control layer (RRC) located in a lower portion of the third layer is defined in the control plane. The RRC layer manages transportation channels and physical channels for the configuration, reconfiguration and emission of radio bearers. Here, a radio bearer (RB) denotes a service provided by the second layer for the transfer of data between the mobile terminal and the UTRAN. The downlink transport channels for transmitting data from a network to a mobile terminal may include a broadcast channel (BCH) for transmitting system information and a downlink shared channel (SCH) for its acronyms in English) to transmit a control message or user traffic. He user control or traffic message of a multicast service or downlink broadcast can be transmitted through the downlink SCH, or through a downlink multicast channel (MCH) separated. The uplink transport channels for transmitting data from a mobile terminal to a network may include a random access channel (RACH) for transmitting an initial control message and an uplink shared channel (SCH) , for its acronym in English) to transmit a control message or user traffic. In the related art, when a mobile terminal can not connect to a door (ie, AG) for the transmission of traffic, either when the mobile terminal can no longer be connected due to its mobility, or when the door can not be maintained due to other operations, the mobile terminal is connected to a suitable door for a base station of an area to which the mobile terminal has moved. However, in this respect, the change to the new gate increases the traffic congestion of the network, due to the contextual information exchanged between gates and signaling message transmissions between many base stations and gates, as well as other similar ones. The RLC layer will be explained later in the present. The RLC layer basically guarantees the quality of service (QoS) of each RB and its corresponding data transmissions. Since the RB service is a service provided to a higher layer by the second layer of the radio protocols, the entire second layer can have an impact on the QoS. In particular, the RLC layer greatly influences the QoS. RLC establishes an independent RLC entity for each RB, in order to guarantee a single RB QoS. RLC provides three modes, in particular a transparent mode (TM, for its acronym in English), a mode of non-recognition (UM, for its acronym in English) and a mode of recognition (AM, for its acronym in English), to support different QoSs. The three RLC modes support QoS in various ways, respectively, and adapt different operating methods accordingly. In addition, the detailed functions of the three operating modes are different from each other. Thus, each of the modes of operation (ie, TM, UM and AM) of RLC will be described in greater detail. In an RLC UM mode, no reception acknowledgment is received for the transmitted data. In an RLC AM mode, a reception acknowledgment is received for the transmitted data. When transmitting data in recognition mode (UM), RLC UM adds a PDU header, which includes a sequence number (SN), to each PDU and transmits PDUs to one side of reception. Accordingly, the receiving side can know specifically which PDU is lost during transmission. The RLC UM handles in the user's plane the transmission of broadcast / multicast data or packet data in real time, such as voice (e.g.

VolP) or flows in a packet service domain. The RLC UM handles in the control plane the transmission of RRC messages that do not require a reception acknowledgment when the RRC messages are transmitted to a specific terminal within a cell or a specific group of terminals within a cellular region . Similar to the RLC UM, the RLC AM configures a PDU by adding a PDU header having an SN to the PDU. However, the difference between the RLC UM and the RLC AM is that a receiving side recognizes whether the PDU transmitted by a transmission side has been received successfully. Notably, when recognition is provided, the receiving side may request the transmission side to retransmit a PDU that was not successfully received. Therefore, the retransmission function is a distinctive feature of the RLC AM. The RLC AM seeks to guarantee error-free data transmission through the use of the retransmission function. Accordingly, the RLC AM manages in the user plane the transmission of packet data in non-real time, such as data from the Transport Control Protocol / Internet Protocol (TCP / IP) in a packet service region. In addition, the RLC AM handles in the control plane the transmission of RRC messages that require a reception acknowledgment when the RRC messages are transmitted to a specific terminal within a specific cell or group of terminals.

The RLC TM and the RLC UM are used in unidirectional communication. However, the RLC AM is used in bidirectional communication due to the feedback function on the receiving side.

Since bidirectional communication is generally used in point-to-point communication, the RLC AM uses a dedicated channel. The RLC AM is complicated because it performs the retransmission function. In particular, the RLC AM is provided with a retransmission memory, in addition to a transmit / receive memory to achieve retransmission. The RLC AM performs various functions, including the use of a transmit / receive window for flow control, a polling function for when a request side transmits status information of a receiving side of a RLC entity coupled, a status information reporting function such as when the receiving side reports its memory status to a transmission side of the bundled RLC entity, the use of a status PDU to supply status information and overlapping confirmations to insert the PDU of status in a data PDU and increase the efficiency of data transmission, for example. The RLC AM also uses a restart PDU to request the restart of all operations and parameters of a counterpart RLC AM entity when the requesting RLC AM entity encounters a critical error during the operation. Accordingly, a restart ACK PDU is used to respond to the restart PDU, as well as a similar one.

The RLC AM uses several protocol parameters, state variables and a timer to support these functions. PDUs, such as the status information report PDU, the status PDU and the restart PDU, are used to control data transmission in the RLC AM. These PDUs are called control PDUs. The PDUs used to transfer user data are called data PDUs. Therefore, the RLC AM generally employs two types of PDUs: the data PDU and the control PDU. The E-UMTS is configured with a base station and a terminal. The radio resources in a cell comprise an uplink radio resource and a downlink radio resource. The base station is responsible for the allocation and control of the uplink and downlink radio resources of the cell. Specifically, the base station determines conditions or situations, such as which terminal the radio resources use, when to use the radio resources, what amount of radio resources to use, and what types of radio resources to use. For example, a base station can determine the transmission of downlink data to a first user for 0.2 seconds at a frequency of 100 Mhz to 101 Mhz after 3.2 seconds have elapsed. Accordingly, the base station informs the corresponding terminal of the determination to allow the terminal to receive the downlink data. Similarly, the base station can determine whether or not to transmit the data based on the conditions or situations (that is, when to use radio resources, how much radio resources to use, what types of radio resources to use, what terminal radio resources use, and so on). The base station also informs the terminal of the determination to allow the terminal to transmit data within the determined period of time. In the E-UTRAN system, the base station dynamically achieves radio resources to increase the efficiency of data transmission. However, in the UTRAN system, the radio resources are managed so that the terminal can continuously use a radio resource during a call connection. This is not reasonable because different services can be provided at the same time based on an IP packet. For example, for most packet data services, a packet is generated intermittently rather than continuously generated. Therefore, it is inefficient for the base station to continuously assign the radio resource to the terminal. In the E-UTRAN system, the radio resource is assigned to a terminal in the manner mentioned above while a terminal has data to transmit. In other words, the E-UTRAN allocates resources to the terminal only when the terminal requires the radio resource. In this regard, in order to transmit more data to more terminals while using a small amount of radio resources, the base station requires more information and controls and manages radio resources more strictly.

For example, if there are three terminals in a single cell, it may be that a first terminal performs voice call communication, a second terminal performs Internet searches and a third terminal does not perform voice communication. When the voice call communication is made, a user of the first terminal and another party can talk to each other at any time. However, the quality of the conversation can be reduced if a voice sound is delayed. Therefore, for the communication of voice calls, the base station allocates a radio resource in a continuous manner. With respect to the second terminal that performs the search by Internet, a user of the terminal may be reading online (Internet) the newspaper, for example. In this case, when the page desired by the user is displayed on the screen, the user will visualize the content of the page during a certain time. During this time, no data is transmitted. Therefore, when searching the Internet, the data is transmitted first for a short time. Subsequently, the terminal enters a state in which no data is transmitted. As a result, the base station can allocate radio resources in accordance therewith. With respect to a user of the third terminal who does not perform call communication, the assignment of the radio resources is not necessary. The inventors of the present have recognized at least the following problems in the procedures currently in existence for the allocation of radio resources. As indicated by the cases described above, the base station allocates radio resources differently in accordance with the particular situations in which the terminal is located. Additionally, to provide more data to more terminals, the base station must consider a time of use of the terminal. For example, when there is no data to be transmitted or received, the data must be transmitted through the terminal uplink. In addition, the time to discriminate if there is data that must be received through the downlink, must be shortened. Otherwise, the waiting time of the terminal increases unavoidably. Based on said problem recognition, various features and aspects described herein have been conceived by the inventors herein. The present description relates to the allocation of radio resources in a mobile communication system. The characteristics and additional aspects will be established in the following description and, in part, they will be evident from the description, or they could be learned with the practice of said characteristics. The features and aspects can be realized and achieved by the structure indicated in a particular way in the written description and the claims thereof, as well as in the attached drawings. To achieve these and other features and aspects, as widely implemented and described, the present disclosure provides a method for allocating radio resources in a mobile communication system, the method comprising transmitting a first information to a network, wherein the first information is used by the network to allocate radio resources to a mobile terminal to allow communication between the mobile terminal and the network, as well as receive a second information from the network, where the second information relates to the allocation of radio resources for the mobile terminal. In one aspect, the information is transmitted when a timer is exhausted. The first information may comprise priority information of a channel that has data. In one aspect, the first information may comprise power information of the mobile terminal. In another aspect, the first information may comprise information related to an average number of retransmissions under a hybrid automatic repeat request (HARQ) scheme. In a further aspect, the first information may comprise information related to the transmission of a complete header packet under a header compression scheme. In still another aspect, the first information may comprise information related to a transition between an inactive period and an active period. The inactive period can be a silent period and the active period is a speaking moment during a voice call operation. The mobile terminal may periodically receive radio resources to transmit the first information using the allocated radio resources.

The first information can be transmitted upon receipt of a request to transmit the information from the network. The second information can be received together with a NACK signal from the network, where the network transmits the NACK signal by incorrectly receiving data from the mobile terminal. The second information may comprise an indicator to indicate to the mobile terminal the existence of location information. The second information can be received during a first frame of a set of time frames, where the first table includes identities of all the mobile terminals that are programmed for the communication of data within the set of time frames. A mobile terminal may be in an inactive state during the other time frames of the temporary frame set if the identity of the mobile terminal is not included in the first frame. In one aspect, the second information may comprise information related to the time when the mobile terminal can transmit the first information. In another aspect, the second information may comprise information related to the time at which the network can allocate the radio resources. The first information can be transmitted on a portion of a random access channel that the mobile terminal is authorized to use. According to another embodiment, a method for allocating radio resources in a mobile communication system comprises receiving a first information of a mobile terminal, wherein the first information is used by a network to assign radio resources to the mobile terminal to allow communication between the mobile terminal and the network and transmit a second information to the mobile terminal, where the second information relates to the allocation of radio resources for the mobile terminal. It should be understood that both the foregoing general description and the following detailed description are illustrative and explanatory in nature and are intended to provide a further explanation of the claims. The accompanying drawings, which are included to provide additional understanding and are incorporated into and form a part of the present specification, illustrate various examples of embodiments and, together with the description, serve to explain the principles of the present disclosure. The characteristics, elements and aspects that are referenced with the same numbers in different figures, they represent characteristics, elements or equal, equivalent or similar aspects in accordance with one or more modalities. Figure 1 illustrates an example of the network structure of an Evolved Universal Mobile Telecommunication System (E-UMTS, for its acronym in English). Figure 2 illustrates a control plane architecture for the radio interface protocols between a mobile terminal and an access network UMTS terrestrial radio (UTRAN) based on a 3GPP radio access network specification. Figure 3 illustrates a user plane architecture for the radio interface protocols between a mobile terminal and a UMTS terrestrial radio access network (UTRAN) based on an access network specification of 3GPP radio. Figure 4 illustrates an example of a method for allocating radio resources in a mobile communication system in accordance with a modality. Figure 5 illustrates an example of the transmission of programming information through a downlink channel sub-frame in accordance with a modality. Figure 6 illustrates an example of the use of radio resources recognized by a terminal through the programming information in accordance with a modality. Figure 7 illustrates a method for transmitting information related to programming to a base station in accordance with a modality. The present disclosure relates to the allocation of radio resources in a mobile communication system. The features in the present description can be implemented in a mobile communication system such as an E-UMTS. However, these can also be applied to other communication systems They operate under different specifications. Some examples of modalities will now be described in detail. The features of the present description provide a better service to mobile terminals under the control of a wireless communication system. A base station can assign radio resources to terminals and the terminals can request that the base station effectively allocate the radio resources. In order to allocate the radio resources to the terminals in a single cell, the base station can be informed of the data each terminal expects to receive. In general, the data that must be transmitted in a downlink address can be transferred from an access gate (AG). Therefore, the base station can recognize the amount of data that must be transferred to each of the terminals through the downlink and allocate the radio resources in accordance therewith. If it is uplink data, the base station can not know the amount of radio resources required by each of the terminals, unless the terminal provides information concerning the data that must be transferred through the uplink. Therefore, in order for the base station to appropriately allocate the uplink radio resources to a terminal, the terminal can provide the base station with information related to the programming of the radio resources.

Figure 4 illustrates an example of a method for allocating radio resources in a mobile communication system in accordance with a modality. Referring to Figure 4, a terminal can transmit information related to the programming to the base station. Subsequently, the base station can appropriately allocate radio resources to the terminal, so that the terminal can quickly transmit the data using the assigned radio resources. Accordingly, a method for allocating radio resources in a mobile communication system will now be described. To assist the base station in appropriately assigning uplink radio resources, the terminal transmits information concerning the state of the data transmission to the base station (S10). The terminal may transmit the data transmission status information to the base station when a specific reference (condition) is met, or at a specific time. The data transmission status information may include information concerning a priority level of a channel having data and, in particular, the status information of the data transmission may include information concerning a channel with the priority level highest among the channels that have data. The data transmission status information may also include identification information for the channels that have data and / or labeling information. The labeling information can include a series of tag values designated by the base station to each channel. The tag value provides information as to whether the corresponding channel includes voice data or requires error-free transmission. Accordingly, the base station can designate the same tag value for different channels of different terminals. The information of the state of the data transmission may also include identification information for the channel with the highest priority level between the channels that have data and / or information concerning a quantity of data of each of the channels. In addition, information on the status of the data transmission may include information concerning a total amount of channel data. The information included in the status information of the data transmission can be transmitted separately or together with other information to the base station. The terminal can collect information for similar classes or similar types of channels and transfer them to the base station. In addition, since the amount of power to be used for the uplink is limited, the terminal may include power information with the information of the state of the data transmission. The power information may comprise information concerning an amount of power available to be used in addition to the power currently used to carry out the transmission, or a maximum amount of power that the terminal may use at that time to carry out the transmission.

Referring to Figure 4, the terminal can also provide information concerning the radio environment (SIO), to help the base station manage the radio resources in a single cell more effectively. The terminal may transmit to the base station, information concerning a success rate or average transmission failure rate using a hybrid automatic repeat request (HARQ) scheme. Accordingly, the base station can calculate a required amount of radio resources to be allocated to the terminal based on the received radio environment information. For example, when a HARQ retransmission procedure occurs on average three times and the terminal requires 1 Mhz radio resources to transmit uplink data, the base station can determine that the 1 MHz radio resources are allocated. to the terminal for three times intervals. In general, a header compression scheme is used for a service based on packet switching (PS service), where most of the IP packets with respect to a service have almost the same same header content. Therefore, in providing the PS service, a complete header packet is transmitted at each determined interval and the changed content is transmitted during a remaining time interval. Accordingly, more uplink radio resources are required to transmit the complete header packet.

For the features of the present description, when the header compression scheme is used for the PS service, the terminal transmits to the base station, temporary information for the entire complete header packet. The temporary information may comprise a transmission section, an interval and time, for example. Accordingly, based on the temporal information, the base station can allocate more resources at a time when the terminal is expected to transmit the complete header packet. In the case of a voice call, the user of a terminal does not always speak. Therefore, there are intervals during which no voice data is generated. A speech coder can generate a packet to indicate a silent interval at a starting point of the interval and transmits said packet. If the terminal recognizes the silent interval, the terminal can inform the base station not to allocate the uplink radio resources to the terminal to transmit the voice data for a certain time. One of a MAC entity, PDCP entity and terminal RLC entity, may recognize the packet indicating the silent interval interpreting the packet or upon receiving an indication of the silent interval from a higher layer. Subsequently, the base station can be informed accordingly. In order for the terminal to transmit the information described above to the base station, the terminal requires adequate uplink radio resources. Therefore, the present description provides a method for effectively allocating radio resources to the terminal, to transmit the previously described information to the base station. In accordance with one embodiment, the base station can arbitrarily allocate uplink radio resources to the terminal, to allow the terminal to transmit the information required or related to the transmission schedule. For example, the base station can allocate uplink radio resources to the terminal through a channel to transmit the uplink radio resource allocation information, as well as instruct the terminal to preferentially use the resources of the uplink radio resource. Uplink radio assigned to transmit programming information. Accordingly, the terminal reads the uplink radio resource allocation information and, when instructed to preferentially use a particular uplink radio resource to transmit the programming information, the terminal transmits the related information with the programming using the particular uplink radio resource. Additionally, the base station may request the transmission of the information related to the programming using the signaling between MAC entities. The base station may request the terminal to transmit the information related to the programming through the allocation information channel of the uplink radio resources, or using a PDU transmitted between MAC entities. Upon receiving the request for the transmission of the information related to the programming from the base station, the terminal transmits the information related to the programming using the assigned uplink radio resource. In accordance with another embodiment, whenever a particular event specified by the base station occurs, the terminal may transmit information related to the programming to the base station. The base station may transmit specification information related to the measurement to the terminal, wherein the terminal measures a radio environment based on the specification information related to the received measurement. Subsequently, the terminal compares a measurement result with the conditions specified in accordance with the specification information related to the measurement. Therefore, when certain conditions are met, the terminal transmits the measurement result or programming information to the base station. In one aspect, the particular event or the specification information related to the measurement, can inform the terminal when to transmit the programming information. In another aspect, the particular event may indicate when a quantity of data that has reached a particular channel of the terminal exceeds a particular reference value or is less than the particular reference value. In another aspect, the particular event can indicate when a total amount of data that has reached a The memory of the terminal exceeds the particular reference value or is less than the particular reference value. In another aspect, the particular event may indicate, based on the amount of radio resources allocated at that time to the terminal, when a time required to use the data stored in the terminal memory exceeds the particular reference value or is lower than the particular reference value. The transmission of information by the terminal to the base station can be done through a control information channel of the MAC entity or the RRC entity. Accordingly, as shown in Figure 4, the base station receives the information related to the programming from the terminal (S10), allocates uplink and / or downlink radio resources to allow the terminal to transmit link data. ascending (S11) and transmits programming information that includes the radio resources assigned to the terminal (S12). In general, the uplink and downlink radio resources are classified depending on a transmission issue. The terminal can perform the transmission through the uplink radio resources and the base station performs the transmission through the downlink radio resources. In this regard, since only the base station performs transmission through the downlink radio resources and determines the programming of the radio resources, part of the downlink radio resources are allocated to transmit the programming information to the terminal. Information related to the data of a particular terminal, as well as what frequency and time to use the uplink transmission, can be transmitted to the terminal. In accordance with the present disclosure, the uplink radio resources can be used by several terminals, where the various terminals are not connected to each other. Therefore, the base station determines an allocation of radio resources for each terminal. Although the determined information is related to the uplink radio resources, the base station informs about the determination to the terminals. The programming information concerning the uplink radio resources, in particular the information related to the data of a particular terminal, as well as what frequency and time to use the uplink transmission, can be transmitted through the resources of downlink radio. For this reason, the timing at which the programming information with respect to the uplink radio resources is transmitted through the downlink radio resources and the time at which each of the terminals actually starts the transmission through the uplink radio resources based on the programming information, they are different. Accordingly, the base station can inform the terminals about the time difference between the time of transmission of the programming information and the actual time of use. Here, the difference time can be transferred through system information of the base station Additionally, the base station can designate a specific time difference in accordance with the service characteristics used by each of the terminals and inform the terminals about the specific time difference example, a terminal with a high processing capacity can immediately process the programming information upon receipt and start the transmission through the uplink However, a terminal that has little processing capacity can not immediately perform the transmission Therefore , a method is used to inform about the specific temporal difference of each of the terminals During the processing procedures, the base station decodes the data transmitted by the terminal If the decoding fails, the base station allocates the uplink radio resources to the terminal of nue The station can allocate the uplink radio resources to the terminal simultaneously with the sending of a NACK signal to the terminal. Alternatively, when the base station sends the NACK signal, it can inform the terminal if use the same resources as those used in the previous transmission When the base station instructs the terminal to use the same radio resources as those previously used, the terminal uses the same amount of radio resources previously used for perform the retransmission. The information concerning whether or not to use the same radio resources can be transmitted using a channel to transmit programming information, or be included in a channel to transmit a NACK and ACK signal with respect to the transmission of a terminal. . In accordance with the features of the present disclosure, the base station can send location to the terminal. However, even if the terminal does not transmit anything through the uplink channel, the terminal can continuously receive downlink channels which make the battery usage time of the terminal unavoidably shorten. Therefore, the present disclosure provides a method for effectively sending location to the terminal. For the base station to transmit location effectively, unnecessary action on the part of the terminal is eliminated to check if the location has been received. Therefore, in a method for transmitting location effectively, the base station transmits location (information) to the terminal using the downlink channel to transmit the programming information. The base station can directly include a terminal identifier that the base station wishes to locate in the channel for the transmission of the programming information. Accordingly, the terminal can decode the programming information at a predetermined time, periodically. Later, when the terminal discovers its identifier, the terminal determines that it has been located and responds immediately to the base station. In addition, when the terminal determines that it has been located, the terminal begins transmitting a predetermined Channel Quality Indicator (CQI) or a pilot signal. When the base station detects the CQI or pilot signal, the base station considers the signal as a response to its location and operates in accordance therewith. In the E-UTRAN system, a minimum temporal unit for discriminating physical resources is a subframe of 0.5 ms. However, the total transmission time for the terminal may be greater than 0.5 ms (e.g., if the NACK or ACK of the base station is large). Accordingly, the transmission of the allocation information to the terminal with respect to the physical resources of uplink or downlink in each subframe, can cause a severe saturation, compared to the user data actually transmitted. To remedy this, the base station can designate one or more subframes as a single programming unit. For example, when the base station designates an uplink radio resource programming unit as three subframes with respect to a specific terminal and the terminal receives the programming information of the unique uplink radio resources, the terminal uses the programming information along three sub-frames. Here, the three sub-frames can use the same amount of radio resources, e.g. the same frequency band. By using this method, the base station can reduce effectively the amount of programming information transmitted to the terminal. The terminal can be informed of the programming unit when a single channel is specified or when an RRC connection is formed between the terminal and the base station. When the base station allocates the uplink radio resources to a specific terminal and simultaneously informs the terminal that the programming is valid for four sub-frames, the terminal can use the uplink radio resources allocated for four sub-frames. To operate more effectively, the base station no longer transmits programming information to the terminal during the programming unit. Alternatively, the terminal no longer reads the channel to transmit the uplink programming information during the programming unit. If a programming starting point assigned to each terminal is different, the base station can inform each of the terminals from which point the programming information should be read. Figure 5 illustrates an example of transmission of programming information through a sub-frame of a downlink channel according to a modality. Figure 6 illustrates an example of a terminal using uplink radio resources recognized through the programming information in accordance with a mode. Referring to Figure 5, a first terminal (UE 1) can recognize in a first sub-frame of a downlink channel that uplink radio resources of frequencies 3 to 6 have been allocated for a frame length subframe. The UE 1 can recognize this assignment through the programming information received during the first sub-frame. Accordingly, the UE 1 can use the allocated uplink radio resources during the four sub-frames, as shown in Figure 6. Referring to Figure 5, a second terminal (UE 2) receives radio resources from uplink during a second and fourth subframe. The UE 1 does not read the programming information of the second to fourth sub-frames, but reads the programming information in the fifth sub-frame, to check whether the resources have been assigned to the UE 1. The UE 2 reads the programming information in the fourth sub-panel to review if resources have been allocated to the EU 2. When conducting the review, because the UE 2 receives uplink radio resources in the fourth sub-frame for a length of two sub-frames, as shown in Figure 5, the UE 2 uses the uplink radio resources allocated during two sub-frames, as is shown in Figure 6. EU 2 can confirm that no resources are allocated to EU 2 in the fifth sub-frame. If the base station does not assign resources to the terminals for a certain period, it can inform the terminals about the next programming moment. During this period, the terminals do not review the programming information. The programming moment can instruct the terminals to review a certain subframe or inform when (ie, after how many subframes) the programming information should be reviewed. In one aspect, the allocation of radio resources to the terminal during each subframe may not be necessary. For example, when the terminal requires an average of one frequency band per subframe, a method for assigning two frequency bands every two subframes can be used. For example, when the base station allocates radio resources starting from a sub-frame x to a sub-frame 10, the base station can transmit the radio resources in sub-frames that constitute even numbers among the 10 sub-frames, as well as assigning two frequency bands in each sub-frame that constitutes an even number. Accordingly, the terminal uses radio resources in an average of one frequency band per subframe. To support this method, the base station can inform the terminal about a permitted transmission procedure and an impermissible transmission procedure. The base station can inform the terminal about the procedures in an initial stage of a call, whenever a channel is specified, or as long as the base station transmits the programming information to the terminal. Accordingly, when the terminal receives the corresponding radio resources during one or more subframe periods, the terminal uses the radio resources in the sub-frame corresponding to the specified procedure for using the radio resources. For example, if the total number of procedures of the terminal is 6, a first procedure is used in a first subframe, a second procedure is used in a second subframe, a third procedure is used in a third subframe, and so on, until it is use a sixth procedure in a sixth sub-frame. Subsequently, for subsequent sub-frames, the order of procedures is reversed at the beginning, so that the first procedure is used in the seventh sub-frame and so on. In one aspect, the base station determines that the terminal can use the radio resources in the procedures 1, 3 and 5 and a first frequency band is assigned to the terminal in a first sub-frame for 30 sub-frames. Here, the terminal uses the radio resources only during a time interval in which the procedures that are authorized to be used are activated. Therefore, the terminal can use the radio resources during sub-frames 1, 3, 5, 7, etc., and it does not use the radio resources during the other intervals. From the point of view of the downlink physical channel, the programming information is not used to transmit real data of the user and, therefore, can be considered excessive. Therefore, it is desirable to have a method for reducing the amount of programming information. The programming information can be expressed simply. For this purpose, a method of configuring the bitmap programming information can be used.

In accordance with the present disclosure, the base station can inform each terminal about a range during which the programming information is transmitted, a time at which the programming information is transmitted and a location of the resource allocation information for the terminal at that time. Accordingly, the terminal can read the programming information during the corresponding time and interval and, specifically, read a portion of the programming information corresponding to the terminal. When resources are allocated to the terminal, the terminal receives data or transmits uplink data using the allocated resources. If no radio resource is assigned, the terminal waits to receive the next transmission of programming information. The location of resource allocation information for the terminal, indicates which bits correspond to the terminal between a plurality of bits in a bit stream. In addition, the radio resources allocated to the terminal may be radio resources designated in a fixed manner in an initial stage of the establishment of a call or in an average stage of the call. According to the present disclosure, if there are four terminals, it may be that the first terminal receives a first position, the second terminal receives a second position, the third terminal receives a third position and the fourth terminal receives a fourth position, for example. Accordingly, if the user's scheduled information received during a particular sub-frame is 0011, then no assigned radio resource to the first and second terminals, but radio resources are assigned to the third and fourth terminals. Here, there may be several methods to inform the terminal about the resources allocated from the base station. In accordance with a first method, the base station informs each of the terminals of the information concerning the radio resources actually assigned after transmitting the programmed information of the user. In this case, the information concerning the assigned radio resources follows the order of the terminals that are known to have received radio resources. In this example, the first radio resource allocation information corresponds to the third terminal, while the second radio resource allocation information corresponds to the fourth terminal. According to another method, for further programming, the base station can combine several sub-frames and provide information concerning which terminals receive radio resources for the sub-frames at an initial stage of the sub-frames. Several sub-frames can be grouped into a single hyperframe and the information concerning which terminals receive radio resources during the hyperframe is provided in the first sub-frame of the hyperframe. The terminals read the first subframe of the hyperframe to check whether the information (e.g., a list) concerning which terminals receive radio resources, includes their identifiers, respectively. If the first Subframe of the hyperframe includes its respective identifiers, the terminals receive the following subframes. If the first subframe of the hyperframe does not include its respective identifiers, the terminals wait for a first subframe of the next hyperframe, or the transmission of information concerning which terminals receive radio resources. To provide the information (or list) concerning which terminals receive radio resources in the hyperframe, the bitmap method mentioned above can be used. In order to effectively use the radio resources of a single cell, as mentioned above, the terminal transmits the information related to the programming to the base station. However, this may contribute to a certain waste of radio resources and a certain undesirable consumption of potential from the terminal. For example, it will be considered a situation in which the base station is loaded. Here, the data for a first service has reached a first terminal from a higher layer. Accordingly, the first terminal would transmit information related to the programming to the base station that will receive the radio resources. However, in the cell where the first terminal is located, other terminals may wish to transmit data. Therefore, if the data to be transmitted by the other terminals is for a service with a higher priority level than the first service for which the first terminal wishes to transmit data, the base station would assign radio resources preferentially to the service with the priority level greater than the first service. Here, it is possible that the base station may not allocate radio resources to the first terminal if the total amount of radio resources in the cell is limited, or until more radio resources can be provided. Therefore, in this situation, the continuous transmission of information related to programming by the first terminal to the base station constitutes a waste of uplink radio resources of the cell. Accordingly, the present disclosure provides a method for effectively transmitting information related to the programming to the base station, while avoiding (or minimizing) wasting radio resources. Figure 7 illustrates a method for transmitting information related to programming to a base station in accordance with a modality. Referring to figure 7, a terminal transmits information related to the programming to a base station (S20). In response to this, the base station transmits an acknowledgment (ACK) with respect to the information related to the programming (S21). Subsequently, the terminal waits for an allocation of radio resources from the base station. If the terminal fails to receive a radio resource allocation from the base station after a predetermined time has elapsed (S22), the terminal retransmits the information related to the programming to the base station (S23). The information related to the programming can be transmitted through a synchronized random access channel. The terminal informs the base station about its access through the synchronized random access channel and transmits information related to the programming using the radio resources assigned by the base station. The terminal can also inform the base station that the terminal requires radio resources. When using the random access channel, the terminal may use one or more fields for its identifier and other fields to transmit the information related to the programming. The time that the terminal waits before retransmitting the information related to the programming (waiting time) can be established by the base station. The base station can inform the terminal about the waiting time individually or designate a waiting time for each of the channels. The waiting time information can be transmitted to the terminals through system information. Thus, UE has to wait at least during the time indicated by the temporary information after sending the information related to the programming. Referring to Figure 7, although the base station successfully receives information related to programming from the terminal, if a priority level of the corresponding terminal is low, or if the base station can not immediately allocate radio resources to the corresponding terminal, the base station can transmit information to control a transmission of the information related to the programming to the terminal (S24). The information to control the transmission of information related to the programming, it can inform when the terminal can retransmit the information related to the programming. The information for controlling the transmission of the programming information, can provide at least one of the amount of time during which the terminal must wait before retransmitting the information related to the programming, the time at which the base station can provide radio resources to the terminal and the time at which the base station can provide the terminal with radio resource allocation information concerning the terminal. When the terminal receives the information to control the transmission of the information related to the programming from the base station, the terminal does not transmit the information related to the programming during a predetermined time in accordance with the received information. And, after waiting a predetermined time, if there is still a need to send the information related to the programming, UE can transmit the information related to the programming. Meanwhile, when a plurality of terminals is present in a single cell and simultaneously requesting the allocation of radio resources from the base station through a random access channel, the base station may have some difficulty in detecting the signals of the terminals. Therefore, the efficiency of the random access channel may be deteriorated.

Therefore, according to the present description, the random access channel that can be used by each of the terminals can be divided. Therefore, after dividing the random access channel into several groups, the base station informs the UEs which random access channel can be used by which UE. Therefore, the terminal can use its allocated random access channel when required. The base station can divide the random access into a certain number and the terminals use the random access channel in a range identical to their identifier, respectively. For example, when the base station divides the random access channel into four parts, the resources of a first random access channel can be used by terminals that have a remainder of 0 when the identifiers of the terminals are divided by 4. In addition, the resources of a second random access channel can be used by the terminals that have a remainder of 1 when the identifiers of the terminals are divided by 4. Notably, the resources of the random access channel can be divided according to time or the frequency band and this is not limited to the scheme described above. In addition, the resources of the random access channel can be assigned by the terminals. In particular, a synchronous random access channel has a greater amount of information than can be transferred or detected compared to a non-synchronous random access channel. Therefore, the base station that assigns a signature sequence specific to each of the terminals, would have the same effect as allocating the resources of the random access channel to each of the terminals. Accordingly, in the present description, the base station can allocate resources from the non-synchronous random access channel to each of the terminals. Here, when synchronizing with the base station, if a terminal has data that must be transmitted through an uplink channel, the terminal employs the resources of the synchronous random access channel assigned to each of the terminals. When the transmission of the terminal from the synchronous random access channel assigned to each of the terminals is detected, the base station recognizes the transmission through the random access channel as a request to allocate radio resources. If necessary, the base station assigns radio resources to the terminal. Here, different resources of the synchronous random access channel can be assigned to each of the terminals and, for example, a specific signature sequence can be assigned to each of the terminals, or to each of the logical channels for the terminals. UEs. As far as has been described so far, the present disclosure provides a method for allowing the terminal to transmit quickly and effectively information related to programming to the base station and for the base station to transmit programming information quickly and effectively. to the terminal. Accordingly, rapid data transmission for more terminals can be ensured.

Although the present description is described in the context of mobile communications, the features of the present disclosure can also be employed in any wireless communication system using mobile devices, such as PDAs and laptop computers equipped with wireless communication capabilities. In addition, the use of certain terms to describe the features of the present disclosure should not limit the scope to a certain type of wireless communication system, such as a UMTS. The teachings of the present are also applicable to other wireless communication systems using different air interfaces and / or physical layers, for example TDMA, CDMA, FDMA, WCDMA, and so on. Examples of embodiments may be implemented as a method, apparatus or article of manufacture using standard programming and / or engineering techniques to produce software, firmware, hardware or any combination thereof. The term "article of manufacture" as used herein, refers to a code or logic implemented in the logic of hardware (eg, an integrated circuit chip, a Programmable Field Door Arrangement (FPGA, by its acronym in English), an Application Specific Integrated Circuit (ASIC), etc.) or a computer-readable medium (eg, magnetic storage media (eg, hard drives, floppy disks, tape, etc.) ), optical storage (CD-ROMs, optical discs, etc.), volatile and non-volatile memory devices (eg, EEPROMs, ROMs, PROMs, RAMs, DRAMs, SRAMs, firmware, programmable logic, etc.).

It has access and executes a code in the medium that can be read by computer through a processor. The code in which the modality examples are implemented can be additionally accessible through a transmission medium or from a file server through a network. In such cases, the article of manufacture in which the code is implemented may comprise a transmission medium, such as a network transmission line, a wireless transmission medium, signals propagating in space, radio waves, infrared signals, et cetera. Of course, the person skilled in the art will recognize that many modifications can be made to the present configuration, without deviating from the scope of the present description., as well as that the article of manufacture can comprise any means carrying information known in the art. The above modalities and advantages are merely illustrative and should not be interpreted as limiting. The teachings herein can easily be applied to other types of apparatus. It is intended that the present description be illustrative and not limit the scope of the claims. Many alternatives, modifications and variations will be apparent to the person skilled in the art. In the claims, it is intended that the media clauses plus function cover the structure described herein as implementing the indicated function and not only referred to structural equivalents, but also to equivalent structures.

Claims (18)

NOVELTY OF THE INVENTION CLAIMS

1. - A method for allocating radio resources in a mobile communication system, the method comprising: transmitting a first information to a network, wherein the first information is used by the network to assign radio resources to a mobile terminal to allow communication between the mobile terminal and the network; as well as receiving a second information from the network, wherein the second information relates to the allocation of radio resources for the mobile terminal.

2. The method according to claim 1, further characterized in that the first information is transmitted when a timer is exhausted.

3. The method according to claim 1, further characterized in that the first information comprises priority information of a channel that has data.

4. The method according to claim 1, further characterized in that the first information comprises power information of the mobile terminal.

5. The method according to claim 1, further characterized in that the first information comprises information related to an average number of retransmissions under a hybrid automatic replay request scheme (HARQ).

6. The method according to claim 1, further characterized in that the first information comprises information related to the transmission of a complete header packet under a header compression scheme.

7. The method according to claim 1, further characterized in that the first information comprises information related to a transition between an inactive period and an active period.

8. The method according to claim 7, further characterized in that the inactive period is a silent period and the active period is a speaking moment during a voice call operation.

9. The method according to claim 1, further characterized in that the mobile terminal is periodically assigned radio resources to transmit the first information using the allocated radio resources.

10. The method according to claim 1, further characterized in that the first information is transmitted upon receipt of a request to transmit the first information of the network.

11. The method according to claim 1, further characterized in that the second information is received together with a NACK signal from the network, where the network transmits the NACK signal when it receives incorrect data from the mobile terminal.

12. The method according to claim 1, further characterized in that the second information comprises an indicator to indicate to the mobile terminal the existence of location information.

13. The method according to claim 1, further characterized in that the second information is received during a first frame of a set of time frames, wherein the first table includes identities of all mobile terminals that are programmed for communication of data within the set of temporary tables.

14. The method according to claim 13, further characterized in that a mobile terminal is in an inactive state during the other time frames of the temporary frame set if the identity of the mobile terminal is not included in the first frame.

15. The method according to claim 1, further characterized in that the second information comprises information related to the moment in which the mobile terminal can transmit the first information.

16. The method according to claim 1, further characterized in that the second information comprises information related to the time at which the network can allocate radio resources.

17. The method according to claim 1, further characterized in that the first information is transmitted on a portion of a random access channel that the mobile terminal is authorized to use.

18. A method for allocating radio resources in a mobile communication system, the method comprising: receiving a first information from a mobile terminal, wherein the first information is used by a network to assign radio resources to the mobile terminal, to allow communication between the mobile terminal and the network; and transmitting a second information to the mobile terminal, wherein the second information relates to the allocation of radio resources to the mobile terminal.