BR122012030995A2 - MOBILE COMMUNICATION METHOD AND MOBILE STATION - Google Patents

Abstract

Mobile communication method and mobile station. The present invention relates to a mobile communication method in accordance with the present invention. A mobile station (EU) transmits uplink data to a radio base station using a designated uplink radio resource for the mobile station. by predetermined programming information in a predetermined cycle. the method includes the steps of: (a) notifying the mobile station (eu) of the predetermined cycle and uplink radio resource information; (b) notify the mobile station (eu) of predetermined programming information; and (c) transmitting the uplink data at the predetermined cycle by using the uplink radio resource designated by the predetermined programming information, the transmission starting at a certain determined point based on the predetermined programming information received. in step (c), the predetermined programming information is discarded when the uplink radio resource information and the information notified by the predetermined programming information are inconsistent with each other.

Description

TECHNICAL FIELD

The present invention relates to a method of mobile communication in which a mobile station transmits uplink data to a radio base station in a predetermined cycle by using an uplink radio resource persistently assigned to the mobile station, the transmission starting at an assignment start time. The present invention also relates to a mobile station and a radio base station.

TECHNICAL FUNDAMENTALS

A communication method as a successor to the W-CDMA (Broadband Code Division Multiple Access) scheme or the HSDPA (High Speed Downlink Packet Access) scheme, namely the LTE (Evolution Long Term) has been considered by the 3GPP W-CDMA standardization organization, and specification preparation work is in progress.

As a radio access method of the LTE scheme, the use of OFDMA in the downlink and SC-FDMA (Single Carrier Frequency Division Multiple Access) in the uplink is under consideration.

OFDMA is a method for dividing a frequency band into plural narrow frequency bands (subcarriers) and transmitting the loaded data over the respective divided frequency bands. In this method, a high speed transmission is achieved and the frequency utilization efficiency is improved by the arrangement of subcarriers densely over the frequency bands in such a way that the subcarriers partially overlap but do not interfere with each other.

SC-FDMA is a transmission method which reduces interference between the terminals by dividing a frequency band and transmitting data using different frequency bands between the plural terminals. The SC-FDMA has a feature of less fluctuation in the dust2 / 43 transmission voltage, which results in low power consumption and a wide terminal coverage.

The LTE scheme is a system in which plural mobile stations communicate with each other by sharing one or more physical channels both in uplink and downlink.

A channel shared by plural mobile stations is generally called a shared channel, which is, in the LTE system, a Shared Physical Uplink Channel (PUSCH) on the uplink and a Shared Physical Downlink Channel (PDSCH) on the downlink.

Also, such a shared channel is, like a transport channel, a Shared Uplink Channel (UL-SCH) on the uplink and a Shared Downlink Channel (DL-SCH) on the downlink.

In such a communication system that uses the shared channels described above, it is necessary to select which mobile station UE the shared channel should be assigned to, and signal to the selected mobile station UE that the shared channel is designated for this, for each subframe (1 ms, in the LTE scheme).

In the LTE scheme, a control channel used for signaling is called the Physical Downlink Control Channel (PDCCH) or Downlink L1 / L2 Control Channel (L1 / L2 DL Control Channel).

Meanwhile, the processing for each subframe of selecting which mobile station UE the shared channel is to be assigned to is generally called programming.

In this case, the processing can also be called dynamic processing, because the mobile station UE to which the shared channel is assigned is dynamically selected for each subframe.

Furthermore, the term designate the shared channel described above can alternatively be expressed as designate a radio resource for the shared channel.

Physical downlink control channel information includes, for example, downlink scheduling information,

3/43 uplink programming, and the like.

Downlink scheduling information includes, for example, referring to the shared downlink channel, downlink resource block assignment information, EU IDs, number of 5 streams, information about the precoding vector, the data size, the modulation method, information about the HARQ (hybrid auto repeat request), and the like.

Meanwhile, the uplink programming grant includes, for example, pertaining to the shared uplink channel, the uplink resource block designation information, the EU IDs, the data size, the demodulation method, the information uplink transmission power, information about the demodulation reference signal in the uplink MIMO, and the like.

Note that the downlink scheduling information and the uplink scheduling grant described above can be collectively referred to as downlink control (DCI) information.

Note that a mobile station uses a UE ID (RNTI) when granting uplink programming or downlink programming to identify whether the granting of uplink programming or downlink programming is transmitted or not to the mobile station itself.

More specifically, CRC bits included in the uplink scheduling concession or downlink scheduling are masked by the RNTI of the mobile station of the transmission destination.

The mobile station performs a CRC check using the CRC bits. Then, when the result of the CRC check is OK, the mobile station determines that the uplink schedule grant or downlink schedule is transmitted to the mobile station itself. When the result of the CRC check is not OK, the mobile station determines that the uplink schedule grant or downlink schedule 30 is not transmitted to the mobile station itself.

Note that CRC bits are bits used to determine whether a transmitted signal is wrongly decoded or correctly decoded.

Consequently, when a certain mobile station receives a signal in which the CRC bits are masked by the RNTI of another mobile station, the result of the CRC check becomes not OK even if the signal is actually received without an error.

In addition, the number of bits for the CRC bits and the RNTI is 16 bits, for example.

Note that a mobile station usually tries to decode 40 downlink programming leases or 40 portions of downlink programming information, for example, in a single subframe.

In this case, the approximately 40 downlink programming grants or 40 portions of downlink programming information include a signal actually transmitted to the mobile station itself, a signal transmitted to another mobile station, a signal that includes only noise with no transmission, and the like, for example.

On the other hand, in Persistent Programming, which was studied for the purpose of implementing VolP and the like, an eNB radio base station is configured to persistently assign an uplink or downlink radio resource (PUSCH or PDSCH) to the station mobile, in a predetermined cycle, starting at a subframe (designation start time) specified by a PDCCH (uplink programming leases or portion of downlink programming information). Note that Persistent Programming can be called Semi-Persistent Programming.

Here, the assignment start time is a subframe in which downlink programming information is transmitted in the case of downlink, and is an uplink transmission subframe specified by the uplink programming grant in the case of uplink. In addition, the predetermined cycle is 20 ms, for example.

In Persistent Programming, the granting of uplink programming or downlink programming information is transmitted through a PDCCH for the initial transmission only, and no concessions

5/43 are uplink programming or no downlink programming information is transmitted via the PDCCH for transmissions after the initial transmission. Thus, the radio resources (excess) required to transmit uplink programming grants or downlink programming information can be reduced. As a result, efficient communications can be performed.

Note that, as described above, there are two types of uplink scheduling grant or downlink scheduling grant information. One type is to notify the mobile station of a resource assignment by Dynamic Programming. The other type is to notify the mobile station of a resource designation by Persistent Programming.

In this case, if the designation is for Dynamic Programming or Persistent Programming described above, it is identified based on an RNTI and similar, for example, the RNTI determined in the granting of uplink programming or downlink programming information.

More specifically, an RNTI for Dynamic Programming and an RNTI for Persistent Programming are defined, and whether the designation is for Dynamic Programming or Persistent Programming is identified based on the result of the corresponding RNTI's CRC check.

SUMMARY OF THE INVENTION

PROBLEM TO BE SOLVED BY THE INVENTION

As described above, if the uplink programming concession or downlink programming information notifies the mobile station of the designation by Dynamic Programming or Persistent Programming is identified based on the RNTI and the like, the RNTI determined in the programming concession uplink or downlink programming information.

In addition, the mobile station attempts to decode approximately 40 uplink programming leases or 40 portions of downlink programming information in a single subframe (within 1 ms).

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Here, as each of the number of bits for the CRC bits and the number of the RNTI bits is 16 bits, the False Alarm occurs with a probability of 1/2 ¹⁶ .

Consequently, when 40 uplink programming grants or 40 portions of downlink programming information are to be decoded, the probability of the False Alarm occurring is 1/2 ¹⁶ x40.

Here, False Alarm is a phenomenon where, even when a radio base station does not transmit any uplink programming grants and no downlink programming information to a mobile station, the mobile station determines that an uplink programming concession or downlink programming information is transmitted to the mobile station itself.

In the case of a resource assignment by Dynamic Programming, for example, the influence of False Alarm is small because the allocation of resources by granting uplink programming or downlink programming information is basically limited in the applicable subframes.

In the case of a resource assignment by Persistent Programming, however, the influence of the False Alarm is considerable. This is because the assignment start time is specified by the uplink schedule grant or downlink schedule information, and also a radio resource is periodically and persistently assigned, starting at the assignment start time by using the schedule grant. uplink or downlink programming information.

Specifically, in the case of an uplink, the mobile station performs an uplink transmission even if a radio base station does not assign any radio resource to it. Thus, the uplink transmission signal becomes an interference signal which interferes with another mobile station in this case, and the characteristic aspects of the system degrade considerably.

Note that the problem associated with the False Alarm above

7/43 can also occur in the case of a configuration in which it is determined based on a specific bit in the PDCCH, instead of the RNTI, if that bit is the PDCCH providing an instruction to persistently designate a PDSCH (resource downlink radio) for Persistent Programming or the PDCCH dynamically assigning a PDSCH (downlink radio resource) for normal downlink programming.

In this regard, the present invention was made in view of the above mentioned problem, and an objective of the present invention is to provide a stable and efficient method of communication, a mobile station, and a radio base station by reducing the probability of the occurrence of False Alarm of uplink programming grants in Persistent Programming.

SOLUTION OF THE PROBLEM

A first aspect of the present invention is summarized as a method of mobile communication in which a mobile station transmits uplink data to a radio base station in a predetermined cycle by using an uplink radio resource persistently assigned to the mobile station, the transmission starting at an assignment start time, the method including the steps: (A1) notifying, from the radio base station to the mobile station, the predetermined cycle and information about the uplink radio resource; (B1) determine, on the mobile station, the assignment start time, and initiate the transmission of the uplink data via the uplink radio resource at the assignment start time, when receiving a persistent assignment signal from the base station radio, in which, in step (B1), the mobile station discards the persistent designation signal, when the information about the uplink radio resource and the information notified by the persistent designation signal is inconsistent with each other.

In other words, the first aspect of the present invention is summarized a method of mobile communication in which a mobile station transmits uplink data to a radio base station by using

8/43 of an uplink radio resource assigned to the mobile station by predetermined programming information, in a predetermined cycle, the method including the steps: (A2) notifying the predetermined cycle and information about the uplink radio feature; (B2) notify the predetermined programming information to the mobile station; and (C2) transmit the uplink data in the predetermined cycle by using the uplink radio resource designated by the predetermined programming information, the transmission starting at a certain point based on the predetermined programming information received, in which, in step ( C2), the default programming information is discarded when the information about the uplink radio resource and the information notified by the default programming information is inconsistent with each other.

In the first aspect, the predetermined cycle and information about the uplink radio resource can be notified by an RRC message; and the persistent designation signal can be notified via a downlink control channel.

In other words, in the first aspect, in step (A2), the predetermined cycle and information about the uplink radio resource can be notified by an RRC message; and in step (B2), the predetermined programming information can be transmitted to the mobile station through a downlink control channel.

In the first aspect, a range of information to be specified by the persistent designation signal can be limited by information about the uplink radio resource; and in step (B1), when the information notified by the persistent designation signal is not within the limited information range to be specified by the persistent designation signal, the mobile station may determine that the information about the uplink radio resource and the information notified by the persistent designation sign is inconsistent with each other.

In other words, in the first aspect, in step (A2) a range of information specifiable by the programming information precedes

Finished 9/43 can be limited by information about the uplink radio resource; and in step (C2), when the information included in the predetermined programming information is not within the range limited by the information about the uplink radio resource, the information about the uplink radio resource and the information notified by the predetermined programming information can be determined to be inconsistent with each other.

In the first aspect, the persistent designation signal, in other words the predetermined programming information can include at least one of the resource block designation information, a modulation scheme, a data size, MCS information, format information. transmission, transmission power control information, Demodulation RS Cyclic Shift information, and a CQI request.

A second aspect of the present invention is summarized as a method of mobile communication in which a mobile station transmits the uplink data to a radio base station by using an uplink radio resource assigned to the mobile station by predetermined programming information. , in a predetermined cycle, the method including the steps of: (A) notifying the predetermined cycle and information about the uplink radio resource to the mobile station; (B) notify the predetermined programming information to the mobile station; and (C) transmit the uplink data in the predetermined cycle by using the uplink radio resource designated by the predetermined programming information, the transmission starting at a certain point based on the received predetermined programming information, in which step (C ) is executed when the information included in the predetermined programming information coincides with previously specified content.

In the second aspect, the predetermined scheduling information can include at least one of the resource block designation information, a modulation scheme, a data size, in10 / 43 MCS formations, transmission format information, information control information transmission power, Demodulation RS Cyclic Shift information, and a CQI request.

A third aspect of the present invention is summarized as a mobile station configured to transmit uplink data to a radio base station in a predetermined cycle by using an uplink radio resource persistently assigned to the mobile station, the transmission initiating a transmission start time, the mobile station including: a persistent communication information receiver unit configured to receive the predetermined cycle and information about the radio base station's uplink radio resource; and a communication unit configured to determine the assignment start time, and initiate the transmission of the uplink data via the uplink radio resource at the assignment start time, when receiving a persistent assignment signal from the radio base station , in which the communication unit is configured to discard the persistent designation signal, when the transmission over the uplink radio resource and the information notified by the persistent designation signal is inconsistent with each other.

In other words, the third aspect of the present invention is summarized as a mobile station configured to transmit uplink data to a radio base station by using an uplink radio resource assigned to the mobile station by predetermined programming information, in a predetermined cycle, the mobile station including: a receiver unit configured to receive the predetermined cycle and information about the radio base station's uplink radio resource; and a communication unit configured to transmit the uplink data in the predetermined cycle by using the uplink radio resource designated by the predetermined programming information, the transmission starting at a certain point based on the predetermined programming information received from the base station radio, in which the communication unit is configured to decommission the predetermined programming information, when the information about the uplink radio resource and the information notified by the predetermined programming information is inconsistent with each other.

In the third aspect, the predetermined cycle and information about the uplink radio resource can be notified by an RRC message; and the persistent designation signal can be notified via a downlink control channel.

In other words, in the third aspect, the receiver unit can be configured to receive the predetermined cycle and information about the uplink radio resource via an RRC message; and the communication unit can be configured to receive the predetermined programming information through a downlink control channel.

In the third aspect, the communication unit can be configured to determine that the information about the uplink radio resource and the information notified by the predetermined program information is inconsistent with each other, when the information included in the predetermined program information is not within a range of information specifiable by predetermined programming information, the range limited by information about the uplink radio resource.

In the third aspect, the persistent designation signal in other words, the predetermined programming information can include at least one of the resource block designation information, a modulation scheme, a data size, MCS information, format information. transmission, transmission power control information, Demodulation RS Cyclic Shift information, and a CQI request.

A fourth aspect of the present invention is summarized as a mobile station configured to transmit uplink data to a radio base station using an uplink radio resource.

12/43 assigned to the mobile station by predetermined programming information, in a predetermined cycle, the mobile station including: a receiver unit configured to receive the predetermined cycle and information about the radio base station's uplink radio resource; and a communication unit configured to transmit the uplink data in the predetermined cycle by using the uplink radio resource designated by the predetermined programming information, the transmission starting at a certain point based on the predetermined programming information received from the base station , in which the communication unit is configured to transmit the uplink data, when the information notified by the predetermined programming information coincides with a previously specified content.

In the fourth aspect, the predetermined scheduling information can include at least one of the resource block designation information, a modulation scheme, a data size, MCS information, transmission format information, transmission power control information , Demodulation RS Cyclic Shift information, and a CQI request.

A fifth aspect of the present invention is summarized as a radio base station for use in a mobile communication method in which a mobile station transmits the uplink data to the radio base station in a predetermined cycle by using a resource. uplink radio frequency persistently assigned to the mobile station, the transmission starting at an assignment start time, the radio base station includes: a persistent communication information transmitter unit to notify the predetermined cycle to the mobile station and information about the uplink radio feature; a persistent designation transmitter unit configured to transmit the persistent designation signal to the mobile station; and a communication unit configured to start receiving uplink data via the uplink radio resource at the designation start time determined by the persistent designation signal, where the

13/43 persistent communication information transmitter configured to notify information that limits a range of information to be specified by the persistent designation signal, such as information about the uplink radio resource.

In other words, the fifth aspect of the present invention is summarized as a radio base station used in a mobile communication system in which a mobile station transmits the uplink data to a radio base station by using a radio resource. uplink assigned to the mobile station by predetermined programming information, in a predetermined cycle, the radio base station including: a first transmitter unit configured to notify the predetermined cycle to the mobile station and information about the uplink radio; a second transmitter unit configured to transmit the predetermined programming information to the mobile station; and a communication unit configured to receive the uplink data transmitted in the predetermined cycle by using the uplink radio resource designated by the predetermined programming information, in which the second transmitter unit is configured to notify, to the mobile station, the information that limit a range of information specifiable by predetermined programming information, such as information about the uplink radio resource.

In the fifth aspect, the predetermined cycle and information about the uplink radio resource can be notified by an RRC message; and the persistent designation signal can be notified via a downlink control channel.

In other words, in the fifth aspect, the first transmitter unit can be configured to notify the predetermined cycle and information about the uplink radio resource to the mobile station via an RRC message; and the first transmitter unit may be configured to notify predetermined programming information to the mobile station via a downlink control channel.

14/43

In the fifth aspect, the persistent designation signal, in other words, the predetermined programming information can include at least one of the resource block designation information, a modulation scheme, a data size, MCS information, format information transmission, transmission power control information, Demodulation RS Cyclic Shift information, and a CQI request.

In the fifth aspect, the first transmitter unit can be configured to determine the range based on a data type. ADVANTAGE EFFECTS OF THE INVENTION

As described above, the present invention is capable of reducing the probability of the occurrence of the False Alarm of uplink programming grants in Persistent Programming. As a result, the present invention is able to provide a stable and efficient mobile communication method, a mobile station, and a radio base station. BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a functional block diagram of a mobile station according to a first embodiment of the present invention.

Figure 2 is a diagram to illustrate a grant for uplink programming in a mobile communication system according to the first embodiment of the present invention.

Figure 3 is a diagram to illustrate programming performed on the mobile communication system according to the first embodiment of the present invention.

Figure 4 is a functional block diagram of a radio base station according to the first embodiment of the present invention.

Figure 5 is a flow chart showing the operations of the mobile station according to the first embodiment of the present invention. DESCRIPTION OF MODALITIES (Configuration of the Mobile Communication System According to the First Modality of the Present Invention)

Referring to Figure 1, a configuration of a mobile communication system according to a first embodiment of the present invention is described. In this embodiment, a description is given using a mobile communication system of the LTE scheme as an example, but the present invention is also applicable to mobile communication systems in other ways.

In the mobile communication system according to the modality, a mobile station UE is configured to transmit the uplink data to an eNB radio base station in a predetermined cycle using a persistently designated PUSCH (uplink radio resource), the transmission starting at an assignment start time.

Specifically, in the mobile communication system in accordance with this modality, a mobile station UE is configured to transmit uplink data to a radio base station by using an uplink radio resource assigned to it in a predetermined cycle by information predetermined programming

As shown in figure 1, the mobile station UE includes a Persistent information receiver unit 11, a Persistent designation signal receiver unit 12, and an uplink data transmitter unit 13.

The Persistent information receiver unit 11 is configured to receive, from the eNB radio base station, Persistent information that includes the predetermined cycle and information about the uplink radio resource.

In addition, the Persistent information receiver unit 11 is configured to notify, to the Persistent designation signal receiver unit 12, information about the uplink radio resource.

Specifically, the Persistent information receiver unit 11 is configured to acquire Persistent information, based on an RRC message transmitted by the eNB radio base station. Here, information about an uplink radio resource is, for example, information to limit a range of information to be notified.

16/43 by a persistent designation signal (ie, predetermined programming information) to be described later, that is, a PDCCH (uplink programming concession) providing a persistent designation instruction for a PUSCH (radio resource). uplink) for Persistent Programming.

From now on, a description will be additionally provided in detail.

The information elements of the PDCCH (uplink scheduling grant) that provide the persistent assignment statement are information elements as shown in Figure 2, for example. »

Format Indicator is information that indicates whether the PDCCH is information for uplink or information for downlink. Downlink information is also called simplified downlink control information.

Hop flag is information that indicates whether a hop is applied or not to an uplink signal, the transmission of which is instructed by the PDCCH.

RB assignment information is information that indicates the resource block assignment information for the uplink signal, the transmission of which is instructed by the PDCCH.

MCS information is information about an MCS for the uplink signal, the transmission of which is instructed by the PDCCH. Here, information about the MCS is information such as a data size, a modulation scheme, and a Redundancy Version parameter in HARQ, for example.

New Data Indicator is information that indicates whether the uplink signal, the transmission of which is instructed by the PDCCH, is for a new transmission or a retransmission.

TPC is information for controlling uplink transmission power for the uplink signal specified by the PDCCH.

Cyclic shift for DMRS is information on Demodulation Reference signal cyclic shift for the

17/43 uplink specified by the PDCCH.

CQI request is information that provides an instruction to transmit a CQI on the uplink.

RNTI / CRC are CRC bits masked by a UE ID (RNTI).

Note that the aforementioned information elements of the PDCCH (uplink programming grant) are an example, and an information element other than the information elements mentioned above may be included in the PDCCH or some of the information elements mentioned above may not be included. included in the PDCCH.

In addition, information about the uplink radio resource may be information to limit the range of information to be notified by the PDCCH (uplink programming grant) mentioned above as described below.

For example, information about the uplink radio resource can be information to limit the range of information to be notified by the RB designation information.

More specifically, the information about the uplink radio resource can be information to limit the number of resource blocks to be notified by the aforementioned RB designation information.

Also, the information about the uplink radio resource can be information to limit the number of resource blocks to be notified by the aforementioned RB designation information to 2 or 3.

In this case, when the number of resource blocks notified by the PDCCH (uplink programming concession) is neither 2 nor 3, the information about the uplink radio resource (RB designation information) notified by the PDCCH (concession of uplink programming) uplink) are inconsistent with each other.

Also, information about the uplink radio resource can be information to limit the number of resource blocks to be notified.

18/43 cited by the aforementioned RB designation information at 3 or less.

Specifically, the information about the uplink radio resource can be information to indicate the maximum value of the number of resource blocks to be notified by the aforementioned RB designation information.

In this case, when the number of resource blocks notified by the PDCCH (uplink programming concession) is greater than 3, the information about the uplink radio resource and the information (RB designation information) notified by the PDCCH (concession uplink programming) are inconsistent with each other.

Note that, the information about the uplink radio resource indicates the maximum value of the number of resource blocks notified by the RB designation information mentioned above in the above mentioned example, but the information about the uplink radio resource can indicate the value minimum number of resource blocks, instead.

Alternatively, information about the uplink radio resource can indicate both the maximum and the minimum number of resource blocks to be notified by the aforementioned RB designation information.

For example, information about the uplink radio resource may indicate 10 as the maximum value for the number of resource blocks to be notified by the RB designation information mentioned above and indicate 5 as the minimum value for resource blocks.

In this case, when the number of resource blocks notified by the PDCCH (uplink programming grant) is greater than 10 or the number of resource blocks is less than 5, information about the uplink radio resource and the ( RB assignment information) notified by the PDCCH (uplink scheduling grant) is inconsistent with each other.

Still, to the extent that information about the uplink radio resource limits the range of information to be notified by information.

As mentioned above, the method for limiting the range is not limited to limiting the number of resource blocks mentioned above, and the information may limit, by using another method of limitation, the range of information to be used. be notified by the aforementioned RB designation information.

For example, information about the uplink radio resource can be information to limit a position in a frequency direction of a resource block to be notified by the aforementioned RB designation information.

Alternatively, the information about the uplink radio resource can be information to limit the information to be notified by the MCS information mentioned above, for example. Information about the uplink radio feature can be information to limit the range of a modulation scheme, a data size, or the like, for example.

More specifically, the information about the uplink radio resource can be information to limit the modulation scheme to be notified by the MCS information mentioned above.

For example, information about the uplink radio resource can be information to limit the modulation scheme to be notified by the MCS information mentioned above for QPSK.

In this case, when the modulation scheme notified by the PDCCH (uplink programming concession) is other than QPSK, for example, when the modulation scheme is 16QAM, the information about the uplink radio resource and the information (MCS information ) notified by the PDCCH (uplink programming grant) are inconsistent with each other.

Note that the example mentioned above illustrates an example in which information about the uplink radio resource limits the modulation scheme to be notified by MCS information for QPSK. However, information about the uplink radio resource can limit the modulation scheme to be notified by the MCS information for

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16QAM, for 64QAM, or for both QPSK and 16QAM, instead.

But specifically, information about the uplink radio feature can indicate whether or not it is applied to each of the modulation schemes, QPSK, 16QAM, and 64QAM to be notified by the MCS information.

Alternatively, information about the uplink radio resource can be information to limit a size of data to be notified by MCS information, for example.

For example, information about the uplink radio resource can be information to limit the size of data to be notified by MCS information to 320 bits.

In this case, when the data size notified by the PDCCH (uplink programming concession) is other than 320 bits, for example, when the data size is 512 bits, the information about the uplink radio resource and the information (information of MCS) notified by the PDCCH (uplink scheduling grant) are inconsistent with each other.

Note that the above mentioned value, 320 bits, is just an example, and the number of bits other than 320 bits can be specified.

In addition, one type of data size is specified in the example mentioned above, but two or more types of data sizes can be specified.

Specifically, information about the uplink radio resource can be information to limit the size of data notified by MCS information to 320 bits and 640 bits, for example.

Alternatively, information about the uplink radio resource can be information to limit the size of data notified by MCS information to 320 bits or less, for example.

In this case, when the data size notified by the PDCCH (uplink programming concession) is greater than 320 bits, for example, when the data size is 512 bits, the information about the uplink radio resource and the information ( MCS information) notified

21/43 by the PDCCH (granting uplink programming) are inconsistent with each other.

Note that the above mentioned value, 320 bits, is just an example, and the number of bits other than 320 bits can be specified. In addition, the maximum value of the data size is specified in the example mentioned above, but the minimum value of the data size can be specified, instead.

Alternatively, both the maximum and minimum data size values can be specified. For example, 640 bits can be specified as the maximum data size value, and 320 bits can be specified as the minimum data size value.

In this case, when the data size notified by the PDCCH (uplink programming concession) is greater than 640 bits or the data size and less than 320 bits, the information about the uplink radio resource and the information (information of MCS) notified by PDCCH (uplink programming grant) are inconsistent with each other.

Note that the above example shows a case where the information notified by RB designation information or the information notified by MCS information is limited by the information about the uplink radio resource, but an element of information other than the elements above mentioned can be limited by the information about the uplink radio resource by the same method, instead.

In addition, the RB designation information or MCS information described above is information relating to resource blocks, or information relating to a modulation scheme or data size, so that the designation information of RB or information MCS can be called information regarding the transmission format.

The Persistent Designation Signal Receiving Unit 12 is configured to receive a persistent designation signal from the eNB radio base station.

Specifically, the persistent designation signal receiving unit 12 is configured to receive, from the eNB radio base station, a PDCCH (uplink programming concession), as a persistent designation signal, the PDCCH (uplink programming concession) ) being transmitted to the mobile station itself and providing an instruction to persistently assign a PUSCH (uplink radio resource) for Persistent Programming.

For example, the Persistent Designation Signal Receiving Unit 12 may be configured to determine, based on an RNTI or similar determined in a PDCCH, whether a PDCCH (uplink programming grant) that provides a persistent designation instruction for a PUSCH (uplink radio resource) for Persistent Programming is transmitted or not to the mobile station itself.

In contrast, the Persistent designation signal receiving unit 12 may be configured to determine, based on an RNTI or similar determined in a PDCCH, whether the received PDCCH is a PDCCH that dynamically designates a PUSCH (uplink radio resource) , that is, an uplink programming concession for dynamic programming.

Here, consider a case where, as a Persistent Programming method in the LTE scheme, it is defined to determine based on a specific bit in a PDCCH whether the PDCCH is a PDCCH (uplink programming grant) that provides an assignment instruction persistent PUSCH (uplink radio resource) for Persistent Programming, or a PDCCH that dynamically designates a PUSCH (uplink radio resource), that is, an uplink programming concession for Dynamic Programming. In this case, the Persistent designation signal receiving unit 12 may be configured to determine based on that bit whether the PDCCH is a PDCCH (uplink programming concession) that provides a persistent designation instruction for a PUSCH (radio resource). uplink) for Persistent Programming, or a PDC

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CH that dynamically designates a PUSCH (uplink radio resource), that is, an uplink programming concession for Dynamic Programming.

Alternatively, consider a case where, as a Persistent programming method in an LTE scheme, it is defined that a portion of the information elements in a PDCCH indicates whether the PDCCH is a PDCCH (uplink programming grant) that provides an instruction for persistent designation of a PUSCH (uplink radio resource) for Persistent Programming or a PDCCH that dynamically designates a PUSCH (uplink radio resource), that is, an uplink programming concession for Dynamic Programming. In this case, the Persistent designation signal receiving unit 12 may be configured to determine based on the part of the information elements in the PDCCH whether the PDCCH is a PDCCH (uplink programming grant) that provides a persistent designation instruction for a PUSCH (uplink radio resource) for Persistent Programming, or a PDCCH that dynamically designates a PUSCH (uplink radio resource), that is, an uplink programming concession for Dynamic Programming.

In addition, the persistent designation signal receiving unit 12 is configured to receive information about the uplink radio resource from the persistent information receiver unit 11.

Here, the information about the uplink radio resource is, as described above, information to limit a range of information to be notified by the persistent designation signal, that is, a PDCCH (uplink programming grant) providing an instruction for persistent designation of a PUSCH (uplink radio resource) for Persistent Programming.

In addition, the Persistent Designation Signal Receiving Unit 12 determines whether information about the uplink radio resource and the information to be notified by the persistent designation signal, that is, the PDCCH (uplink programming concession) that provides a persistent assignment statements for Persistent Programming are or are not inconsistent with each other.

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When the Persistent Designation Signal Receiving Unit 12 determines that information about the uplink radio resource and the information to be notified by the persistent designation signal, that is, the PDCCH (uplink programming grant) that provides an instruction of persistent designation of a PUSCH (uplink radio resource) for Persistent Programming are inconsistent with each other, the Persistent Designation Signal Receiving Unit 12 discards the persistent designation signal, that is, the PDCCH (programming concession) uplink) which provides a PUSCH (uplink radio resource) persistent assignment instruction for Persistent Programming, which the Persistent designation signal receiving unit 12 determined as the signal transmitted to the mobile station itself.

Specifically, in this case, the Persistent designation signal receiving unit 12 considers that the information notified by the persistent designation signal, that is, the PDCCH (uplink programming concession) that provides a persistent designation instruction for a PUSCH (resource uplink radio) for Persistent Programming has not been transmitted to the mobile station itself.

In the above-mentioned processing, the Persistent designation signal receiving unit 12 provides the uplink data transmitter unit 13 with the persistent designation signal which is not discarded, that is, the PDCCH (uplink programming concession) that provides a persistent assignment instruction for a PUSCH (uplink radio resource) for Persistent Programming.

Hereinafter, an example will be shown of the processing as described above to discard the persistent designation signal, that is, the PDCCH (uplink programming grant) that provides a persistent designation instruction for a PUSCH (uplink radio resource) for Persistent Programming.

Consider a case where the information about the uplink radio resource is information to limit the number of resource blocks to be notified by the RS designation information to 2 or 3, for example

25/43 example.

When the number of resource blocks notified by the PDCCH (uplink programming grant) is neither 2 nor 3 in this case, the Persistent designation signal receiving unit 12 determines that the information about the uplink radio resource and the information ( RB assignment information) notified by the PDCCH (uplink scheduling grant) is inconsistent with each other. Thus, the PDCCH (concession of uplink programming) is discarded.

Alternatively, consider a case where the information about the uplink radio resource is information to limit the number of resource blocks to be notified by the RB designation information to 3 or less, for example. When the number of resource blocks notified by the PDCCH (uplink scheduling grant) is greater than 3 in this case, for example, when the number of resource blocks is 5, the Persistent designation signal receiving unit 12 determines that the information about the uplink radio resource and the information (RB designation information) notified by the PDCCH (uplink programming grant) is inconsistent with each other. Thus, the PDCCH (concession of uplink programming) is discarded.

Alternatively, consider a case where the information about the uplink radio resource is information to limit the number of resource blocks to be notified by the RB designation information to 10 or less, but at least 5, for example. When the number of resource blocks notified by the PDCCH (uplink scheduling concession) is greater than 10 or less than 5 in this case, for example, when the number of resource blocks is 12, the unit of signal reception of Persistent designation 12 determines that the information about the uplink radio resource and the information (RB designation information) notified by the PDCCH (uplink programming grant) is inconsistent with each other. Thus, the PDCCH (concession of uplink programming) is discarded.

Alternatively, consider a case where information about

26/43 the uplink radio resource is information to limit the modulation scheme to be notified by information from MCS to QPSK, for example. When the modulation scheme notified by the PDCCH (uplink scheduling concession) is not QPSK in this case, for example, when the modulation scheme is 16QAM, the Persistent designation signal receiving unit 12 determines that the information about the uplink radio and the information (MCS information) reported by the PDCCH (uplink programming grant) is inconsistent with each other. Thus, the PDCCH (concession of uplink programming) is discarded.

Alternatively, consider a case where the information about the uplink radio resource is information to limit the size of data to be notified by MCS information to 320 bits, for example. When the data size notified by the PDCCH (uplink scheduling grant) is not 320 bits in this case, for example, when the data size is 1024 bits, the Persistent designation signal receiving unit 12 determines that the information about the uplink radio resource and the information (MCS information) notified by the PDCCH (uplink programming grant) is inconsistent with each other. Thus, the PDCCH (concession of uplink programming) is discarded.

Alternatively, consider a case where the information about the uplink radio resource is information to limit the size of data to be notified by MCS information to 320 bits or less, for example. When the data size notified by the PDCCH (uplink scheduling grant) is greater than 320 bits in this case, for example, when the data size is 512 bits, the Persistent designation signal receiving unit 12 determines that the information about the uplink radio resource and the information (MCS information) notified by the PDCCH (uplink programming grant) is inconsistent with each other. Thus, the PDCCH (concession of uplink programming) is discarded.

Alternatively, consider a case where information about

27/43 the uplink radio feature is information to limit the size of data to be notified by MCS information to 640 bits or less, but at least 320 bits, for example. When the data size notified by the PDCCH (uplink programming concession) is greater than 640 bits, or less than 320 bits in this case, for example, when the data size is 1024 bits, the receiving unit of Persistent designation 12 determines that the information about the uplink radio resource and the information (MCS information) notified by the PDCCH (uplink programming grant) is inconsistent with each other. Thus, the PDCCH (concession of uplink programming) is discarded.

Note that, in the above example, the persistent designation signal receiving unit 12 determines whether the information about the uplink radio resource and the information to be notified by the persistent designation signal, that is, the PDCCH (programming concession) uplink) that provides a persistent assignment instruction for a PUSCH (uplink radio resource) for persistent programming are or are not inconsistent with each other. Instead, the Persistent designation signal receiving unit 12 can determine whether an inconsistency other than the above mentioned inconsistencies exists or not. Then, when determining that such an inconsistency exists, the Persistent Designation Signal Receiving Unit 12 can discard the persistent designation signal, that is, the PDCCH (uplink programming grant) that provides a PUSCH ( uplink radio resource) for Persistent Programming.

For example, consider a case where the mobile station does not have the capacity to support a 64QAM uplink transmission. When the Persistent designation signal receiving unit 12 is given an instruction to transmit 16QAM by the persistent designation signal, that is, the PDCCH (uplink programming concession) that provides a persistent designation instruction for a PUSCH ( uplink radio) for Persistent Programming in this case, the signal reception unit of Persistent 12 can discard the

28/43 persistent signification, that is, the PDCCH (uplink programming grant) that provides a persistent designation instruction for a PUSCH (uplink radio resource) for Persistent Programming.

Alternatively, consider a case where the mobile station has a capacity to allow the maximum transmissible data size of 10000 bits. When the Persistent Designation Signal Receiving Unit 12 is given an instruction to transmit an uplink signal with a data size of 20000 bits by the persistent designation signal, i.e. the PDCCH (uplink programming concession) that provides a PUSCH (uplink radio resource) persistent assignment instruction for Persistent Programming, the Persistent designation signal receiving unit 12 can discard the persistent designation signal, that is, the PDCCH (uplink programming grant) which provides a persistent assignment instruction for a PUSCH (uplink radio resource) for Persistent Programming.

In the meantime, there is usually a bit pattern that has no meaning as information in the persistent designation signal, that is, the PDCCH (uplink programming concession) that provides a persistent designation instruction for a PUSCH (uplink radio resource) ) for Persistent Programming.

Consequently, when some bit pattern of the persistent assignment signal, that is, the PDCCH (uplink programming grant) that provides a persistent assignment instruction of a PUSCH (uplink radio resource) to Persistent Programming has no meaning as information, the Persistent Designation Signal Receiving Unit 12 can discard the persistent designation signal, that is, the PDCCH (uplink programming grant) that provides a persistent designation instruction for a PUSCH (uplink radio resource) for Persistent Programming.

Note that the expression a bit pattern has no meaning as information can be expressed differently that the bit pattern is not supposed to be notified.

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In this case, the Persistent Designation Signal Receiving Unit 12 can determine, regardless of information about the uplink radio resource, whether any bit pattern of the persistent designation signal, that is, from the PDCCH (uplink programming concession) which provides a persistent instruction for assigning a PUSCH (uplink radio resource) to Persistent Programming does or does not have a meaning like information as described above.

Alternatively, the Persistent Designation Signal Receiving Unit 12 can determine whether any bit pattern of the persistent designation signal, that is, from the PDCCH (uplink programming concession) that provides a persistent designation instruction from a PUSCH ( uplink radio) for Persistent Programming does or does not have a meaning like information as described above, in a case where information about the uplink radio resource does not exist.

Here, an example of the bit pattern not supposed to be mentioned above will be described.

For example, when the value of the number of RBs indicated by the RB designation information shown in Figure 2 is set to always be 10 or less in the persistent designation signal, a bit pattern that indicates a value greater than 10 as the number of RBs shown by the RB designation information is considered to be a bit pattern not supposed to be notified.

Specifically, the mobile station UE discards the persistent designation signal when the value of the number of RBs indicated by the RB designation information on the persistent designation signal is greater than 10.

Alternatively, in the case where the value of the data size indicated by the MCS information shown in Figure 2 is set to always be 1000 or less in the persistent designation signal, for example, a bit pattern that indicates a value greater than 1000 as the size of data shown by the MCS information is considered to be a bit pattern not supposed to be notified.

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Specifically, the mobile station UE discards the persistent designation signal when the value of the data size indicated by the MCS information on the persistent designation signal is greater than 1000.

Note that, the 'case where the value of the data size indicated by the MCS information is greater than 1000' may mean that a bit portion of the MCS information is not a predetermined value, for example. In a case where the data size is defined by a four-digit binary number (described as abcd hereinafter where the first digit a corresponds to the Most Significant Bit), the data size is described as follows when expressed by a decimal number . (Data size expressed by a decimal number) = 2 ³ xa + 2 ² xb + 2 ¹ xc + 2 ^o xd

Here, when a, which is the Most Significant Bit, is not 0, that is, when a is 1, the data size is at least B.

Specifically, the mobile station UE may discard the persistent designation signal when a portion of the MCS information bits in the persistent designation signal is not a predetermined value.

More specifically, the mobile station UE can discard the persistent designation signal, when the Most Significant Bit of the MCS information in the persistent designation signal is not a predetermined value (when the Most Significant Bit is not 0 in the above example, for example ), or a predetermined number of consecutive bits of the Most Significant Bit is not a predetermined value (for example, when neither a nor b is 0, assume that the values of two consecutive bits are not a predetermined value in the above mentioned example).

Note that the same processing can be applied when the MCS information indicates both the data size and the modulation scheme.

Alternatively, when the modulation scheme indicated by the MCS information shown in Figure 2 is defined to always be

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QPSK in the persistent designation signal, for example, a bit pattern that indicates 16QAM or 64QAM as the modulation scheme shown by the MCS information is considered to be a bit pattern not supposed to be notified.

Specifically, the mobile station UE discards the persistent designation signal, when the modulation scheme indicated by the MCS information in the persistent designation signal is not QPSK.

Alternatively, the persistent designation signal is basically a signal that provides an instruction for a new transmission. Thus, a bit pattern that specifies a modulation scheme used in relaying MCS information, for example, is considered to be a bit pattern not supposed to be notified.

Specifically, the mobile station UE discards the persistent designation signal, when the MCS information on the persistent designation signal indicates a bit pattern that specifies a modulation scheme used in retransmission.

Alternatively when it is defined that 1 is always determined in the persistent designation signal as the TPC value shown in Figure 2, for example, 0 as the TPC value is considered to be a bit pattern not supposed to be notified.

Specifically, the mobile station UE discards the persistent designation signal when the TPC value in the persistent designation signal is not 0.

Note that the number of bits for TPC is 1 in the example mentioned above, but the number of bits can be other than 1, for example, 2 or 3. For example, when the number of bits for TPC is 2, and is defined that 11 is always determined as the TPC value, bit patterns 10, 01, and 00 are considered to be bit patterns not supposed to be reported.

Alternatively, when it is defined that 1 is always determined as the Cyclic Shift For DMRS value shown in Figure 2 in the persistent designation sign, for example, 0 as the value of

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Cyclic Shift For DMRS it is considered to be a bit pattern not supposed to be notified.

Specifically, the mobile station UE discards the persistent designation signal when the Cyclic Offset To DMRS value in the persistent designation signal is 0.

Note that, the number of bits for Cyclic Shift For DMRS in the above example is 1, but the number of bits can be other than 1, for example, 2 or 3.

Alternatively, when it is defined that 1 is always determined as the CQI request value shown in Figure 2 in the persistent designation signal, for example, 0 as the CQI request value is considered to be a bit pattern not supposed to be notified.

Specifically, the mobile station UE discards the persistent designation signal when the CQI request value on the persistent designation signal is 0.

Alternatively, when it is defined that 1 is always determined as the New Data Indicator value shown in Figure 2 in the persistent designation signal, for example, 0 as the New Data Indicator value is considered to be a bit pattern not supposed to be notified.

Specifically, the mobile station UE discards the persistent designation signal when the value of the New Data Indicator on the persistent designation signal is 0.

Alternatively, the mobile station UE can identify the bit pattern not supposed to be notified above, based on information in a persistent designation signal received in the past.

For example, when the data size indicated by MCS information in a persistent designation signal received in the past is always 320 bits, the mobile station UE may consider a bit pattern that indicates a data size other than 320 bits as a pattern of bits not supposed to be notified.

Here, for example, it is considered that the False Alarm happens

33/43 when the mobile station UE is in a state where it has not received a correct persistent designation signal even once in the past. Consider a case where the mobile station UE has received a persistent designation signal that has the same data size at least three times in the past. In this case, the mobile station UE may consider a bit pattern showing a data size other than the aforementioned data size as a bit pattern not supposed to be notified.

Alternatively, in a case where the mobile station UE has consecutively received a persistent designation signal that has the same data size at least three times in the past, the mobile station UE may consider a bit pattern showing a data size other than the aforementioned data size as a bit pattern not supposed to be notified.

Note that the numbers shown in the above mentioned example such as 320 bits and three times are just examples, and the numbers can be values other than the values shown in the above mentioned example.

Note that multiple of the processing operations mentioned above to discard the PDCCH (downlink programming) by providing a persistent assignment instruction of a PUSCH (uplink radio resource) for Persistent Programming can be applied simultaneously.

Specifically, when multiple processing operations to discard the PDCCH that provides the persistent designation instruction are performed, and when the PDCCH is determined to be discarded in at least one of the processing operations, the processing operation to discard the PDCCH can be performed.

The uplink data transmitter unit 13 is configured to transmit the uplink data to be transmitted via a PUSCH (uplink radio resource) designated by a PDCCH.

Specifically, the uplink data transmitter unit 13 is configured to determine an uplink transmission subframe

34/43 as the aforementioned designation start time, when receiving from the Persistent designation signal receiving unit 12, the Persistent designation signal, i.e. the PDCCH (uplink programming grant) that provides the designation instruction persistent of a PUSCH (uplink radio resource) for Persistent Programming, the uplink transmission subframe specified by the PDCCH. The uplink data transmitter unit 13 is configured to initiate the persistent transmission of uplink data via PUSCH (uplink radio resource) to Persistent Programming in the predetermined cycle at the assignment start time.

In the example shown in Figure 3, the uplink data transmitter unit 13 is configured to transmit, since the Persistent designation signal receiving unit 12 received the persistent designation signal in a subframe # 3 via the PDCCH, the uplink data via a PUSCH (uplink radio resource) mapped to a resource block (aggregate of subcarriers) in an uplink transmission subframe # 7 specified by the PDCCH.

Furthermore, the uplink data transmitter unit 13 is configured to transmit the uplink data via a PUSCH (uplink radio resource) mapped to a resource block (aggregate of subcarriers) specified by the PDCCH in the 20 ms cycle. , the transmission starting in subframe # 7.

That is, the uplink data transmitter unit 13 for transmitting the uplink data via a PUSCH (uplink radio resource) mapped to a resource block (aggregate of subcarriers) specified by the PDCCH in subframes # 7, # 27 , # 47 .....

On the other hand, the eNB radio base station according to the present invention is configured to notify the predetermined cycle and information about an uplink radio resource to the mobile station UE.

As the description relating to such information as the information about the uplink radio resource is the same as the description provided for the mobile station UE, its description will be omitted here.

As shown in Figure 4, the eNB radio base station includes a Persistent information transmitter unit 21, a Persistent designation signal transmitter unit 22, and an uplink data receiver unit 23.

The Persistent information transmitter unit 21 is configured to transmit, to the mobile station UE, Persistent information (persistent communication information) that includes the predetermined cycle and information about an uplink radio resource.

Specifically, the Persistent information transmitter unit 21 is configured to notify Persistent information to the mobile station UE by the use of an RRC message.

Here, information about the uplink radio source is the information to limit the range of information to be notified by a persistent designation signal, that is, a PDCCH (uplink programming grant) that provides a persistent designation instruction. a PUSCH (uplink radio resource) for Persistent Programming.

As the description of the information about the uplink radio resource is the same as the description provided for the mobile station UE, its description will be omitted here.

Here, the Persistent information transmitter unit 21 can determine information about the uplink radio resource based on a data type.

For example, when the data type is VolP, the Persistent information transmitter unit 21 may determine that the information about the uplink radio resource is information to limit the number of resource blocks to be notified by the RB designation information. to 3 or less. In addition, when the data type is a continuous stream, the Persistent information transmitter unit 21 can determine that the information about the uplink radio resource is information to limit the number of resource blocks to be notified by the designation information RB to 10 or less.

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Alternatively, when the data type is VolP, the Persistent information transmitter unit 21 can determine that the information about the uplink radio resource is information to limit the modulation scheme to be notified by the MCS to QPSK information. In addition, when the data type is streaming, the Persistent information transmitter unit 21 can determine that the information about the uplink radio resource is information to limit the modulation scheme to be notified by MCS information to QPSK or 16QAM.

Alternatively, when the data type is VolP, the Persistent information transmitter unit 21 can determine that the information about the uplink radio resource is information to limit the data size to be notified by the MCS information to 320 bits. In addition, when the data type is streaming, the Persistent information transmitter unit 21 can determine that the information about the uplink radio resource is information to limit the data size to be notified by the MCS information to 640 bits. .

Specifically, as the information to be notified by the persistent assignment signal, that is, the PDCCH (uplink programming grant) that provides a persistent assignment instruction of a PUSCH (uplink radio resource) to Persistent Programming is limited, be determined based on a data type of data for which the resource is designated by Persistent Programming.

Note that the data type mentioned above can be referred to as a service type. Specifically, the type of service is information that indicates a type of packet transmission service. Thus, the type of service may include a VolP service, a voice service, a streaming service, an FTP (File Transfer Protocol) service, and the like, for example.

In the above example, the Persistent information transmitter unit 21 determines information about the uplink radio resource based on a data type, but it can determine the

37/43 information about the uplink radio resource based on a contract type, a logical channel type, a cell type, or a priority type instead of the data type.

In addition, the type of contract shows a type of contract subscribed by the user of the EU mobile station and includes a Low Class contract or a High Class contract, or a flat rate contract or a volume charge contract or the like, for example.

In addition, the cell type shows a cell operating situation, and an internal or external situation, and an urban or rural area situation is conceivable.

The logical channel type is a type of logical channel such as a Dedicated Control Channel (DCCH) or a Dedicated Traffic Channel (DTCH). Multiple channels can also be defined in the DCCH or DTCH.

Here, Radio Carrier means a carrier that transmits data and is defined to have a one-to-one relationship with a logical channel through which data is transmitted. As a result, the carrier has approximately the same meaning as the logical channel.

The priority type is a class to categorize priorities related to the transmission of uplink and downlink data into classes. For example, data with a first priority class is transmitted more preferably than data with a second priority class.

The priority type can be combined with a logical channel, and then called a Logical Channel Priority. Alternatively, the priority type can be defined as a Priority Class.

The persistent designation signal transmitter unit 22 is configured to transmit a persistent designation signal to the mobile station UE.

Specifically, the Persistent designation signal transmitter unit 22 is configured to transmit, to the UE mobile station, the PDCCH (uplink programming concession) which provides a persistent designation instruction for a PUSCH (uplink radio resource)

38/43 for Persistent Programming, as a sign of persistent designation.

Note that when 1 is always designated as the TPC value (refer to Figure 2) in the persistent designation signal as 5 described above, the Persistent designation signal transmitter unit 22 can always determine 1 as the value of the TPC.

Alternatively, when it is defined that 1 is always designated as the Cyclic Shift value for DMRS (refer to figure 2) in the persistent designation signal as described above, for example, the Persistent designation signal transmitter unit 10 can always determine 1 as the Cyclic Shift value for DMRS.

Alternatively, when it is defined that 1 is always designated as the CQI request value (refer to figure 2) in the persistent designation signal as described above, for example, the Persistent designation signal transmitter unit 15 can always determine 1 as the value of the CQI request.

Alternatively, when 1 is defined as always the New Data Indicator value (refer to Figure 2) in the persistent designation signal as described above, for example, the Persistent designation signal transmission unit 20 can always determine 1 as the value of the New Data Indicator.

The uplink data receiving unit 23 is configured to receive the uplink data to be transmitted via a PUSCH (uplink radio resource) designated by a PDCCH.

Specifically, the uplink data receiving unit 23 is configured to determine the uplink transmission subframe specified by the PDCCH to be the aforementioned designation start time when the Persistent designation signal is transmitted by the designation signal transmission unit. Persistent 22. The uplink data reception unit 23 is then configured to initiate persistent uplink data reception via PUSCH (uplink radio resource) for Persistent Programming in the predetermined cycle above

39/43 mentioned, the reception starting at the designation start time.

(Operation of the Mobile Communication System According to the First Modality of the Present Invention)

Referring to Figure 5, an operation of the mobile communication system 5 according to the first embodiment of the present invention is described.

As shown in Figure 5, in step S101, the mobile station UE receives, by means of an RRC message or similar, the Persistent Information that includes the predetermined cycle mentioned above and the 10 information about the uplink radio resource of the radio station. eNB radio base.

Note that the information about the uplink radio resource is, for example, information to limit a range of information to be notified by a persistent designation signal, that is, a PDCCH 15 (uplink programming concession) that provides a instruction for the persistent assignment of a PUSCH (uplink radio resource) to Persistent Programming.

The description of the information about the uplink radio resource is the same as that for the EU mobile station. Thus, its description 20 will be omitted here.

In step S102, the mobile station UE receives the Persistent designation signal transmitted by the radio base station eNB via the PDCCH.

More specifically, the mobile station UE receives, as the persistent designation signal, a PDCCH (uplink programming grant) that provides a persistent designation instruction from a PUSCH (uplink radio resource) for the base station's Persistent Programming eNB radio.

In step S103, the mobile station UE determines whether information about the uplink radio resource and the information notified by the persistent designation signal, that is, the PDCCH (uplink programming grant) that provides a persistent designation instruction. one

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PUSCH (uplink radio resource) for Persistent Programming are or are not inconsistent with each other.

Here, a detailed description of the above processing to determine whether an inconsistency exists or not is omitted here because its description is the same as that in the case of the mobile station UE.

A case where the mobile station UE determines that the information about the uplink radio resource and the information notified by the persistent designation signal, that is, the PDCCH (uplink programming grant) that provides a persistent designation instruction for a PUSCH (uplink radio resource) for Persistent Programming are or are not inconsistent with each other (step S103: YES), the operation proceeds to step S104.

In step S104, the mobile station UE discards the persistent designation signal, that is, the PDCCH (uplink programming concession) which provides a persistent designation instruction of a PUSCH (uplink radio resource) for Persistent Programming.

Specifically, the mobile station UE considers the information notified by the persistent designation signal, that is, the PDCCH (uplink programming grant) that provides a persistent designation instruction of a PUSCH (uplink radio resource) for Persistent Programming as information that has not been transmitted to the EU mobile station itself.

In step S105, the mobile station UE determines an uplink transmission subframe as the aforementioned designation start time, the uplink transmission subframe specified by the Persistent designation signal, that is, the PDCCH (uplink programming concession) which provides a persistent assignment instruction for a PUSCH (uplink radio resource) for Persistent Programming. The mobile station UE then initiates a transmission of persistent uplink data via PUSCH (radio uplink resource) for Persistent Programming in the aforementioned predetermined cycle, the transmission starting at the designation start time in step S105.

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Specifically, in this case, the mobile station UE performs the transmission of uplink data via PUSCH (uplink radio resource) for Persistent Programming, until the PUSCH (uplink radio resource) for Persistent Programming above is released .

(Advantageous Effect of the Mobile Communication System According to the First Modality of the Present Invention)

As described above, the probability of a False Alarm occurring for a PDCCH (information about granting uplink programming or granting downlink programming) is 1/2 ¹⁶ .

In general, the mobile station UE tries to decode approximately 40 PDCCHs in a single subframe, the total probability of the False Alarm occurring is calculated as 40 x 1/2 ¹⁶ = 0.0006.

Here, the False Alarm described above is a phenomenon in which the mobile station UE incidentally determines that a PDCCH is transmitted to the mobile station UE even though the PDCCH is not transmitted to the mobile station UE itself. Thus, the information decoded in this case is highly likely to be meaningless information.

Consequently, as described above, a limitation is provided in the information range on a PDCCH, and when the mobile station UE receives a PDCCH that has information outside the limited range, the mobile station UE performs a processing to discard the PDCCH. Thus, the probability of the False Alarm occurring can be significantly reduced.

For example, suppose the number of bits in a PDCCH other than CRC is 24 bits, and a 12-bit range between the 24 bits in the PDCCH is limited. For the sake of simplicity of calculation, assume that the 12-bit bit pattern is limited to a single type.

In this case, as described above, a limitation is provided in the information range in the PDCCH, and when the mobile station UE receives a PDCCH that has information outside the limited range, the mobile station UE performs a processing to discard the PDCCH. Thus, the probability

42/43 of the occurrence of the False Alarm is calculated as follows:

χ x 1/2 ¹⁶ 1/2 ^{12/2 24 to 1.5} χ 10 ^"7.

Thus, the probability of the occurrence of False Alarm is made much less in this case.

Specifically, the mobile communication system according to the first modality of the present invention is able to reduce the probability of the occurrence of the False Alarm of a PDCCH (uplink programming concession) that indicates a resource designation for Persistent Programming. As a result, the mobile communication system according to the first embodiment of the present invention is capable of providing a stable and efficient mobile communication method, a mobile station, and a radio base station.

(Modification)

Note that the operation of the mobile station UE and the radio base station eNB described above can be implemented by means of hardware, a software module executed by a processor, or a combination of both.

The software module can be provided in any type of storage medium such as a RAM (Random Access Memory), an instant memory, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (ROM Electronically Erasable and Programmable), a registry, a hard disk, a removable disk, or a CD-ROM.

The storage medium is connected to the processor so that the processor can read and write information from and on the storage medium. Also, the storage medium can be integrated into the processor. Also, the storage medium and the processor can be provided in an ASIC. The ASIC can be provided on the mobile station UE and on the radio base station eNB. Also, the storage medium and the processor may be provided in the mobile station UE and in the radio base station eNB as a discrete component.

Here above, the present invention has been described in detail using the above embodiment; however, it is apparent to those skilled in the art that the present invention is not limited to the embodiment described herein. Modifications and variations of the present invention can be made without departing from the spirit and scope of the present invention defined by the description of the scope of the claims. Thus, what is described herein is for illustrative purposes, and has no intention whatsoever to limit the present invention.

Claims (4)

1. Mobile communication method in which a mobile station (UE) transmits uplink data to a base radio station (enB) through the use of an uplink radio resource assigned to the mobile station (UE) through programming information predetermined execution times in a predetermined cycle characterized by the fact that it comprises the steps of: (A) notify the predetermined cycle to the mobile station (UE); (B) notify the predetermined execution schedule information to the mobile station (UE); and (C) transmitting uplink data in the predetermined cycle using the uplink radio resource assigned by the predetermined execution schedule information, the transmission starting at a specified point based on the received predetermined execution schedule information, wherein the predetermined execution schedule information is discarded when the information included in the predetermined execution schedule information is incompatible in at least one as previously defined as MCS information, TPC information and HARQ process information. 2. Mobile station (UE) configured to transmit uplink data to a base radio station (enB) through the use of an uplink radio resource assigned to the mobile station (UE) by the predetermined execution schedule information, in a predetermined cycle, characterized by the fact that it comprises: a receiving unit configured to receive the predetermined cycle of the base radio station (enB); and a communication unit configured to transmit uplink data in the predetermined cycle through the use of the uplink radio resource assigned by the predetermined execution schedule information, the transmission starting at a specified point based on the execution schedule information predetermined received from 2/2 of the base radio station (enB), where the communication unit is configured to discard the predetermined execution schedule information when the information included in the predetermined execution schedule information is incompatible in at least one as previously defined as MCS information, TPC information and HARQ process information. 3. Mobile communication method in which a mobile station (UE) transmits an uplink signal to a base radio station (enB) characterized by the fact that it comprises the steps of: (A) notify the mobile station (UE) of an uplink scheduling concession as the predetermined scheduling information; and (B) transmit, on the mobile station, an uplink signal based on the received uplink schedule grant, in which the mobile station discards the uplink schedule grant when a value of an information element Cyclic shift to DMRS in the grant uplink programming time does not correspond to a defined fixed value. 4. Mobile station (UE) configured to transmit an uplink signal to a base radio station (enB), characterized by the fact that it comprises: a communication unit configured to transmit an uplink signal based on the uplink programming grant received from the base station as the predetermined programming information, wherein the communication unit configured to discard the uplink programming grant when a value of an information element Cyclic shift for DMRS when granting uplink programming does not correspond to a defined fixed value.