JP2008172366A - Base station apparatus, terminal apparatus, program, control information transmission method, and control information reception method - Google Patents

Abstract

Even when the number of mobile station apparatuses increases, wireless communication is performed by allocating a plurality of blocks determined by a predetermined frequency band and time band to each terminal apparatus. In the base station device, the correspondence storage means for storing the correspondence relationship between the temporary terminal identification information for semi-fixed assignment to which the terminal device is assigned in advance and the terminal device, and the correspondence relationship are stored in the correspondence storage means Scheduling means for generating allocation information representing allocation of each block to the terminal device using temporary terminal identification information for semi-fixed allocation and temporary terminal identification information for dynamic allocation for allocating the terminal device for each notification, and allocation Information and the base station apparatus in order to identify the terminal apparatus specified by the dynamic allocation temporary terminal identification information used in the allocation information. The base station apparatus characterized by comprising the assignment notification means for notifying a static terminal identification information for uniquely identifying the end device to the terminal device.
[Selection] Figure 21

Description

  The present invention relates to a base station apparatus, a terminal apparatus, a program, a control information transmission method, and a control information reception method, and in particular, a base station apparatus that performs radio communication in a block determined by a predetermined frequency band and time band allocated to the terminal The present invention relates to a terminal device, a program, a control information transmission method, and a control information reception method.

In 3GPP (3rd Generation Partnership Project), a W-CDMA (Wideband Code Division Multiple Access) method is standardized as a third generation wireless access method (3G) of cellular mobile communication, and a service is started. In addition, 3G evolution (Evolved Universal Terrestrial Radio Access, hereinafter referred to as “EUTRA”) and 3G network evolution (Evolved Universal Terrestrial Radio Access Network, hereinafter referred to as “U. . In addition, a radio link from the base station apparatus to the mobile station apparatus (hereinafter referred to as “downlink”, and a radio link from the mobile station apparatus to the base station apparatus is referred to as “uplink” hereinafter) is referred to as OFDM (Orthogonal). A Frequency Division Multiplexing (orthogonal frequency division multiplexing) method has been proposed.
Also, a high speed downlink packet radio access HSDPA (High Speed Downlink Packet Access) system in which a W-CDMA downlink is applied to high-speed packet communication has been standardized (Non-patent Document 1).

High-speed physical downlink shared channel HS-PDSCH (High Speed Shared Linked Channel) and HS-DSCH related shared control channel HS-SCCH (HS-DSCH-related Shared Channel) are available as downlink physical channels of the HSDPA scheme.
As an uplink physical channel of the HSDPA scheme, there is an HS-DSCH related uplink dedicated physical control channel HS-DPCCH (Dedicated Physical Control Channel HS-DSCH).

The high-speed physical downlink shared channel HS-PDSCH of the HSDPA system is a downlink shared channel and is shared by a plurality of mobile station apparatuses. The high-speed downlink shared channel HS-DSCH (High Speed Downlink) of the transport channel to each mobile station apparatus Shared Channel). This HS-PDSCH is used for transmission of packet data addressed to each mobile station apparatus from an upper layer.
The HS-DSCH related shared control channel HS-SCCH of the HSDPA scheme is a downlink shared channel, which is shared by a plurality of mobile station apparatuses, and information necessary for demodulation of the high-speed physical downlink shared channel HS-DSCH in the mobile station apparatus ( Information necessary for modulation scheme, spreading code), error correction decoding processing and hybrid automatic retransmission HARQ (Hybrid Automatic Repeat reQuest) processing is transmitted to each mobile station apparatus.

HS-DSCH-related uplink dedicated physical control channel HS-DPCCH is an uplink dedicated control channel, and is received in correspondence with downlink quality information CQI (Channel Quality Indication) indicating the downlink radio channel condition and hybrid automatic retransmission HARQ. It is used for transmission of ACK / NACK (Acknowledgement / Negative Acknowledgments) as confirmation information.
The control channel for each mobile station apparatus is transmitted by a dedicated physical control channel or specified by a shared control channel and mobile station identification information (RNTI: Radio Network Temporary ID). This mobile station identification information is 16 bits. For example, the HS-DSCH related shared control channel HS-SCCH is code-multiplexed with the high-speed downlink shared channel HS-DSCH. Therefore, the HS-SCCH only needs to be transmitted in the time (3 slots) range used by one mobile station apparatus on the HS-DSCH, and the HS-SCCH has an information amount (spread code) necessary for controlling the HS-DSCH. Modulation scheme, transport block size, HARQ processing information, error correction decoding processing information, mobile station identification information, etc .: a coding rate of 1.0 and a total of 37 bits) can be sufficiently accommodated. Further, the mobile station identification information efficiently uses a limited number of bits by being included in the error correction coding processing procedure. This is called UEID masked CRC (User Equipment IDentity masked Cyclic Redundancy Check). That is, this is a configuration (separate coding: individual coding) in which a control signal is individually error-correction coded for each mobile station apparatus.

  On the other hand, the evolution of third generation radio access (Evolved Universal Terrestrial Radio Access (hereinafter referred to as EUTRA)) and the evolution of third generation radio access network (Evolved Universal Terrestrial Radio Access Network, hereinafter referred to as TR) . As an EUTRA downlink, an OFDM (Orthogonal Frequency Division Multiplexing) scheme has been proposed. As the EUTRA technology, there is a technology such as an adaptive modulation and coding scheme (AMCS: Adaptive Modulation and Coding Scheme, hereinafter referred to as “AMCS scheme”) based on the OFDM scheme and adaptive radio link control (link adaptation) such as channel coding. Has been applied.

  In order to efficiently perform high-speed packet data transmission, the AMCS method is an error correction method, an error correction coding rate, a data modulation multi-value number, a time / frequency axis according to the propagation path condition of each mobile station apparatus. This is a method for switching wireless transmission parameters (hereinafter referred to as “AMC mode”) such as a spreading factor (SF) and a multicode multiplexing number. For example, with regard to data modulation, as the propagation path condition becomes better, switching from QPSK (Quadrature Phase Shift Keying) modulation to higher-efficiency multi-value modulation such as 8PSK modulation, 16QAM (Quadrature Amplitude Modulation) modulation, etc. The maximum throughput of the communication system can be increased.

  Regarding the arrangement of downlink physical channels and transport channels in the OFDM system, in the spread-OFDM system (see, for example, Patent Document 1 and Patent Document 2), the physical control channel and the physical data channel are multiplexed in the same frequency band by spreading code multiplexing. A method has been proposed. In the non-spread-OFDM scheme (for example, wireless LAN standard 802.16), time division multiplexing TDM (Time Division Multiplexing) is performed using resources on the frequency axis (subcarrier) and time axis (OFDM symbol) of OFDM. In addition, frequency division multiplexing FDM (Frequency Division Multiplexing) or a method of multiplexing in time and frequency using a combination of TDM and FDM has been proposed.

In addition, in the technical data of EUTRA (see Non-Patent Document 2), the configuration of the downlink radio frame is shown. The radio frame is divided in the frequency direction and the time direction. Data for the mobile station apparatus is mapped. In order to perform mapping of this data, it is necessary to transmit allocation information of each mobile station apparatus to the block from the base station apparatus by mobile station identification information or the like.
JP 2001-237803 A JP 2004-297756 A 3GPP TR (Technical Report) 25.858 and 3GPP HSDPA specification related materials. Http://www.3gpp.org/ftp/Specs/html-info/25-series.html R1-050707 "Physical Channels and Multiplexing in Evolved UTRA Downlink" 3GPP TSG RAN WG1 # 42 on LTE London, UK, August 29- September 5

  However, in the HSDPA method, 16-bit C-RNTI (Cell Specific Radio Network Temporary Identity) that can be uniquely identified in the base station apparatus is used as the identification information of the mobile station apparatus, and the resource allocation information includes mobile information. In order to indicate which block should be used by the station device, a bitmap corresponding to the number of resource blocks is used for each mobile station device, so resource allocation is proportional to the number of mobile station devices with which the base station device communicates. Therefore, there is a problem that the transmission efficiency deteriorates as the information capacity of the control information increases due to the increase in the number of mobile station apparatuses.

  For example, in a system using adaptive modulation, when the frequency bandwidth is 5 MHz and 25 resource blocks are scheduled, the information capacity of control information per mobile station apparatus is the sum of the uplink and downlink shown below. The downlink information capacity is 16 bits for identification information of the mobile station apparatus, 25 bits for resource allocation information, 2 bits for designation of adaptive modulation scheme, for example 2 bits for MIMO related information for designating the number of antennas, etc., and payload size 6 bits, 3 bits for the HARQ number, and 2 bits for the HARQ retransmission number, for a total of 16 + 25 + 2 + 2 + 6 + 3 + 2 = 56 bits. The uplink information capacity is 16 bits for identification information of the mobile station apparatus, the resource allocation information is assigned only to consecutive blocks in the uplink, so the start block is 4 bits and the end block is 4 bits, the adaptive modulation scheme is 2 bits, MIMO The related information is 2 bits, the payload size is 6 bits, the HARQ retransmission number is 2 bits, and the uplink time synchronization signal is 1 bit, for a total of 16 + 4 + 4 + 2 + 2 + 6 + 2 + 1 = 37 bits. That is, the sum of uplink and downlink is 56 + 37 = 93 bits, and the information capacity of the control information is the number of mobile station apparatuses × 93 bits.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a base station capable of suppressing deterioration in transmission efficiency even when the number of mobile station apparatuses with which the base station apparatus communicates increases. An apparatus, a terminal device, a control information transmission method, a control information reception method, and a program are provided.

  The present invention has been made to solve the above-described problem, and the base station apparatus of the present invention assigns a plurality of blocks determined by a predetermined frequency band and time band to the terminal apparatus, respectively. In a base station apparatus that performs wireless communication with a terminal device, a correspondence memory that stores a correspondence relationship between the quasi-fixed allocation temporary terminal identification information and the terminal device with respect to the quasi-fixed allocation temporary terminal identification information that is allocated in advance. Each block using the means, the quasi-fixed allocation temporary terminal identification information that stores the correspondence in the correspondence storage means, and the dynamic allocation temporary terminal identification information that allocates a terminal device for each notification Scheduling means for generating allocation information representing allocation to a terminal device, the allocation information, and the dynamic allocation used in the allocation information Allocation notification means for notifying the terminal device of static terminal identification information for uniquely identifying the terminal device in the base station device in order to identify the terminal device specified by the temporary terminal identification information And

  Thereby, the base station apparatus represents the allocation to the terminal apparatus of each block in the allocation information by the temporary terminal identification information, so that the information capacity of the allocation information does not depend on the number of terminal apparatuses, and further the dynamic allocation temporary terminal By notifying only the static terminal identification information corresponding to the identification information, the information capacity to be notified is suppressed, so that even when the number of terminal devices increases, it is possible to suppress deterioration in transmission efficiency.

  A base station apparatus according to the present invention is the above-described base station apparatus, wherein the correspondence storage means includes the correspondence relationship in addition to the correspondence relationship between the quasi-fixed temporary allocation terminal identification information and the terminal device. It is characterized by memorizing the correspondence with the block group that holds.

  As a result, the base station apparatus can allocate different terminal apparatuses to the same value of quasi-fixed allocation temporary terminal identification information in different block groups, thereby increasing the degree of freedom of scheduling. Further, it is possible to suppress the information capacity to be notified.

  Further, the base station apparatus of the present invention is the above-described base station apparatus, and refers to the correspondence storage means in addition to the correspondence relationship between the temporary terminal identification information for quasi-fixed allocation and the static terminal identification information. And a semi-fixed identification correspondence notifying means for notifying the terminal device of information representing the correspondence relationship with the block group in which the correspondence relationship is established.

  Thereby, since the base station apparatus can change the allocation of the terminal apparatus to the temporary terminal identification information for semi-fixed allocation, it is possible to increase the degree of freedom of scheduling and further suppress the information capacity to be notified. .

  The base station apparatus according to the present invention is any one of the above-described base station apparatuses, wherein the correspondence storage unit corresponds to the temporary terminal identification information for semi-fixed allocation in addition to the correspondence relationship. Storing a quasi-fixed communication parameter that is quasi-fixedly changed among communication parameters used for transmission / reception, and quasi-fixed communication parameter notifying means for notifying the quasi-fixed communication parameter to the terminal device. And

  Thereby, the base station apparatus can change the communication parameter of the terminal apparatus with respect to the quasi-fixed temporary terminal identification information according to the propagation path condition, etc., and can improve the transmission efficiency.

  Also, the base station apparatus of the present invention is any one of the above-mentioned base station apparatuses, wherein the allocation notification means is a communication parameter used for transmission / reception by a terminal apparatus corresponding to the quasi-fixed allocation temporary terminal identification information. Among them, the dynamic communication parameters that change dynamically are notified

  Thereby, the base station apparatus can change according to the propagation path condition of the block to which the communication parameter of the terminal apparatus corresponding to the semi-fixed temporary terminal identification information is allocated, and can increase the transmission efficiency.

  The base station apparatus according to the present invention is any one of the above-described base station apparatuses, wherein the allocation notifying unit notifies the allocation information and the dynamic terminal correspondence information together with the dynamic information used in the allocation information. The terminal apparatus corresponding to each value of the temporary allocation temporary terminal identification information notifies a communication parameter used for transmission / reception.

  Thereby, the base station apparatus can change according to the propagation path condition of the block to which the communication parameters of the terminal apparatus for the dynamic allocation temporary terminal identification information are allocated, and can increase the transmission efficiency.

  Further, the terminal device of the present invention is a terminal device that wirelessly communicates with the base station device in a block allocated by the base station device from among a plurality of blocks determined by a predetermined frequency band and time zone. The allocation of each block to the terminal device is expressed by using the quasi-fixed allocation temporary terminal identification information to which the terminal device is allocated in advance and the dynamic allocation temporary terminal identification information to which the terminal device is allocated for each notification. Receiving allocation information and static terminal identification information for uniquely identifying the terminal device in the base station device for identifying the terminal device specified by the dynamic allocation temporary terminal identification information used in the allocation information And an assignment receiving means for detecting a block assigned to the own apparatus.

  As a result, since the terminal device assigns each block to the terminal device in the assignment information by the temporary terminal identification information, the information capacity of the assignment information does not depend on the number of terminal devices, and the temporary information for quasi-fixed assignment. Since the static terminal identification information corresponding to the terminal identification information is not notified, the notified information capacity is suppressed, and even when the number of terminal devices increases, it is possible to suppress the deterioration of transmission efficiency.

  The terminal device according to the present invention is the above-described terminal device, further comprising correspondence storage means for storing a value of the temporary terminal identification information for quasi-fixed assignment associated with the own device, and the assignment receiving means. When the own device is associated with the value of the temporary terminal identification information for semi-fixed assignment, the semi-fixed assignment stored in the correspondence storage means when detecting the block assigned to the own device. The value of temporary terminal identification information for fixed assignment is used.

  Thereby, since the terminal device can change the association between the own device and the temporary terminal identification information for quasi-fixed allocation and the communication parameter according to the notification from the base station device, the scheduling of the base station device can be performed. The degree of freedom can be increased, and further, by changing the communication parameter that the base station apparatus notifies in accordance with the propagation path condition when associated with the temporary terminal identification information for quasi-fixed assignment, the propagation path It is possible to increase the transmission efficiency by communicating with communication parameters according to the situation.

  Moreover, the terminal device of the present invention is the above-described terminal device, wherein the correspondence storage means is a correspondence relationship between the temporary terminal identification information for quasi-fixed assignment and static terminal identification information associated with the own device. In addition, a correspondence relationship with a block group in which the correspondence relationship is established is stored.

  As a result, the terminal device can allocate different terminal devices to the same value of quasi-fixed allocation temporary terminal identification information as long as they are different groups of blocks, thereby increasing the degree of freedom of scheduling in the base station device. In addition, the information capacity to be notified can be reduced.

  The terminal device of the present invention is the above-described terminal device, and in addition to the correspondence relationship between the quasi-fixed allocation temporary identification information and the static terminal identification information, the correspondence with the block group in which the correspondence relationship is established A quasi-fixed identification correspondence receiving means for receiving information representing the relationship from the base station apparatus is provided.

  As a result, the terminal device can change the block group in which the correspondence relationship between the temporary identification information for quasi-fixed allocation and the static terminal identification information is established, so that the degree of freedom of scheduling in the base station device can be increased. Further, it is possible to suppress the information capacity to be notified.

  The terminal device according to the present invention is any one of the above-described terminal devices, wherein the correspondence storage means is quasi-fixed among communication parameters used for transmission / reception with the base station device in addition to the correspondence relationship. A quasi-fixed communication parameter receiving unit is provided for storing a quasi-fixed communication parameter to be changed and receiving the quasi-fixed communication parameter from a base station apparatus.

  Thereby, when the terminal apparatus is associated with the temporary terminal identification information for quasi-fixed assignment, the terminal apparatus changes the communication parameter notified according to the propagation path condition, etc. It is possible to increase the transmission efficiency by communicating with the corresponding communication parameters.

  Further, the terminal device of the present invention is any one of the above-described terminal devices, wherein the allocation receiving unit is configured such that the static terminal identification information received together with the allocation information matches the static terminal identification information of the own device. Receives communication parameters used for transmission / reception with the base station apparatus.

  Thereby, since the terminal device can be changed according to the notification from the base station device when being associated with the temporary terminal identification information for dynamic allocation, the base station device can respond to the propagation path condition and the like. By changing the communication parameter to be notified in this way, communication can be performed with the communication parameter corresponding to the propagation path condition, and the transmission efficiency can be increased.

  Further, the program of the base station apparatus of the present invention includes a computer provided in a base station apparatus that assigns a plurality of blocks determined by a predetermined frequency band and time band to each terminal apparatus and performs wireless communication with the terminal apparatus. Each block using quasi-fixed temporary terminal identification information for quasi-fixed assignment that stores the correspondence with the terminal device in the correspondence storage means and temporary terminal identification information for dynamic assignment that assigns the terminal device for each notification Scheduling means for generating allocation information representing allocation to the terminal device, the base for identifying the terminal device specified by the allocation information and the dynamic allocation temporary terminal identification information used in the allocation information The station device functions as an assignment notification means for notifying the terminal device of static terminal identification information for uniquely identifying the terminal device.

  The terminal device program of the present invention is a terminal device that wirelessly communicates with the base station device in a block assigned by the base station device from among a plurality of blocks determined by a predetermined frequency band and time zone. A terminal of each block using the quasi-fixed allocation temporary terminal identification information to which the terminal device is allocated in advance and the dynamic allocation temporary terminal identification information to which the terminal device is allocated for each notification. Statically uniquely identifying a terminal device in the base station device for identifying the terminal device specified by the allocation information indicating the allocation to the device and the dynamic allocation temporary terminal identification information used in the allocation information It receives terminal identification information and functions as an assignment receiving means for detecting a block assigned to its own device.

  Further, the control information transmission method of the present invention is a control information transmission method in a base station apparatus that assigns a plurality of blocks determined by a predetermined frequency band and time band to a terminal apparatus and performs wireless communication with the terminal apparatus. The base station apparatus stores temporary correspondence identification information for quasi-fixed allocation in which the correspondence storage means stores the correspondence relationship with the terminal apparatus, and temporary allocation identification information for dynamic allocation that allocates the terminal apparatus for each notification. A first step of generating allocation information representing allocation of each block to the terminal device using the base station device, and the base station device using the allocation information and the temporary terminal identification for dynamic allocation used in the allocation information A second terminal for notifying the terminal device of static terminal identification information for uniquely identifying the terminal device in the base station device for identifying the terminal device specified by the information; Characterized by comprising a degree.

  Further, the control information receiving method of the present invention is a terminal device that wirelessly communicates with the base station device using a block assigned by the base station device from among a plurality of blocks determined by a predetermined frequency band and time zone. In the control information receiving method according to claim 1, wherein the terminal device is quasi-fixed allocation temporary terminal identification information to which the terminal device is allocated in advance, and dynamic allocation temporary terminal identification information to which the terminal device is allocated for each notification. Terminal in the base station device for identifying the terminal device specified by the allocation information indicating the allocation of each block to the terminal device and the dynamic allocation temporary terminal identification information used in the allocation information Receiving a static terminal identification information for uniquely identifying a device, and comprising a first step of detecting a block assigned to the device.

  According to this invention, in the allocation information, the allocation of each block to the terminal device is represented by the temporary terminal identification information, so that the information capacity of the allocation information is not dependent on the number of terminal devices, and the temporary terminal identification for quasi-fixed allocation Since the static terminal identification information corresponding to the information is not required to be notified and the information capacity to be notified is suppressed, deterioration in transmission efficiency can be suppressed even when the number of terminal devices increases.

  FIG. 1 is a configuration example of a downlink radio frame assumed based on a proposal of 3GPP in EUTRA (3GPP contribution R1-050705 “Pilot Channel Structure in Evolved UTRA Downlink” 3GPP TSG RAN WG1 TE # 42 on Uk, Aug 29-Sep 2, 2005, 3GPP contribution R1-050707 "Physical Channels and Multiplexing in Evolved UTRA Downlink" 3GPP TSG RAN WG1 # 42 on LTE 0LonG “CQI-based TRANSMISSION OWER CONTROL for Control Channel in Evolved UTRA "3GPP TSG RAN WG1 # 42 on LTE London, Uk, Aug 29-Sep 2,2005), it is a diagram showing a configuration example of a downlink radio frame in this embodiment. As shown in FIG. 1, a downlink radio frame from a base station apparatus to a mobile station apparatus is composed of blocks each being a radio resource unit composed of a predetermined frequency band and time band. Hereinafter, this block is referred to as a PRB (Physical Resource Block). The PRB is determined from a subchannel as a frequency component corresponding to one or a plurality of subcarriers and a subslot as a time component corresponding to one or a plurality of OFDM symbols.

  For example, the entire downlink band (downlink frequency bandwidth) Ball is 5 MHz, the PRB bandwidth Bprb is 180 kHz, the subcarrier frequency bandwidth Bsc is 15 kHz, one radio frame length is 10 ms, and the subslot length is 7 OFDM. When a symbol (0.5 ms), a user unit transmission time TTI (Transmission Time Interval) is 1.0 ms (subframe), and a guard band is 0.5 MHz, one radio frame is 25 in the frequency axis direction, It is composed of 20 PRBs in the time axis direction, that is, 500 PRBs. Therefore, the position of the RB in the radio frame can be expressed by an array F (f, t) where the frequency direction arrangement number f and the subslot number t are set. For example, in the above example, 1 ≦ f ≦ 25 and 1 ≦ t ≦ 20. However, FIG. 1 does not show the guard band.

  Also, one PRB includes 12 subcarriers, and when an OFDM symbol length Ts is 0.07 ms (Short CP: Short Cyclic Prefix), one PRB includes 7 OFDM symbols. It becomes. When an OFDM symbol (Long CP) with an extended guard interval length is used, assuming that the OFDM symbol length Ts is 0.08 ms, one PRB includes 6 OFDM symbols. Therefore, as shown in FIG. 2, 1PRB can be expressed by an array C (f, t) with subcarrier number f and OFDM symbol number t. For example, in the above Short CP example, 1 ≦ f ≦ 12 and 1 ≦ t ≦ 7.

The TTI (subframe) is composed of two subslots, and one subframe includes
(1) User data used by the user,
(2) Transmission of downlink control information and uplink control information (mobile station identification information (User Equipment identity), modulation scheme, error correction scheme, information necessary for hybrid automatic repeat HARQ (Hybrid Automatic Repeat reQuest) processing, data length, etc. Parameter),
(3) A known pilot signal used for propagation path estimation for demodulating control data and user data is mapped.

  Further, at the head of the radio frame, (4) a synchronization signal for synchronizing the frame and (5) common control information for reporting the configuration of the entire frame are mapped. Also, (6) paging information and (7) MBMS information are mapped as information sharing the PRB with user data.

The downlink physical layer channels (1) to (7) above are defined as follows.
(1) Downlink shared data channel PDSCH (Physical Downlink Shared Channel),
(2) Downlink shared control channel PSCCH (Physical Shared Control Channel),
(3) Downlink pilot channel DPICH (Downlink Pilot channel),
(4) Synchronization channel SCH (Synchronization Channel),
(5) Common control channel CCPCH (Common Control Physical Channel),
(6) Paging channel PCH (Paging Channel),
(7) Multicast channel MCH (Multicast Channel)

The PRBs to which data addressed to mobile station devices (users, mobile station devices) are sent are basically (3) downlink pilot channel DPICH, (2) downlink shared control channel PSCCH, and (1) downlink shared data. It consists of channel PDSCH.
The DPICH is used for power measurement when performing cell search and handover, CQI measurement for performing adaptive modulation (AMCS), and channel estimation for demodulating PSCCH and PDSCH.
PSCCH is control information for downlink, such as PRB modulation method, data length, PRB position of data addressed to own station, Hybrid ARQ information such as control information necessary for demodulating user data, and uplink information. The control information for this includes power control, PRB transmission timing control, PRB position to be transmitted by the local station, modulation scheme, data length, HARQ ACK / NACK for data transmitted by the mobile station apparatus, and the like.

PDSCH is user data. In some cases, it is shared by multiple users. In order to demodulate user data, information such as the modulation scheme and data length in the PSCCH is indispensable, and in order to demodulate the PSCCH, propagation path compensation is performed using a pilot signal of DPICH.
FIG. 3 is a diagram illustrating a configuration example of an uplink PRU applied to the present invention. Similarly to the downlink, uplink radio frames are blocks each having a predetermined frequency band and time band, and are configured by blocks that are radio resource units used in communication. Hereinafter, this block is referred to as PRU (Physical Resource Unit). The PRU is composed of two SBs (Short Blocks) and six LBs (Long Blocks). SB and LB are determined from a subchannel as a frequency component corresponding to one or a plurality of subcarriers and a subslot as a time component corresponding to one or a plurality of OFDM symbols.

  For example, the entire uplink bandwidth (uplink frequency bandwidth) is 5 MHz, the PRU bandwidth is 180 kHz, the subcarrier frequency bandwidth Bsc is 15 kHz, one radio frame length is 10 ms, and the length of the subslot is 2SB, 6LB. (0.5 ms), when the user unit transmission time TTI (Transmission Time Interval) is 1.0 ms (subframe) and the guard band is 0.5 MHz, one radio frame is 25 times in the frequency axis direction. It is composed of 20 PRUs in the axial direction, that is, 500 PRUs.

The subframe (TTI) is composed of 2 subslots.
(1) User data used by the user,
(2) Uplink data related control information (transport block size, etc.)
(3) Uplink data unrelated control information (downlink CQI feedback, downlink HARQ ACK / NACK, etc.)
(4) Up pilot signal (for data demodulation and propagation path environment measurement)
Are mapped.
In the present embodiment, the system band is described as 5 MHz, but the present invention can be applied even with different system bandwidths such as 1.25 MHz, 10 MHz, and 20 MHz. Further, in the case of a system bandwidth of 10 MHz or 20 MHz, the structure may be a structure divided in 5 MHz units described in the present embodiment, or may be a structure in which the parameters of the present embodiment are expanded to 10 MHz or 20 MHz.

  FIG. 4 is a diagram illustrating a configuration example of the downlink PRB in the present embodiment. The PRB is configured as a block of Bprb = 180 kHz and one sub-slot (0.5 ms) in the time direction, and includes 25 PRBs within 5 MHz. One subframe is composed of two subslots (subslot 1 and subslot 2). The downlink pilot channel DPICH is arranged at 3 subcarrier intervals (C (x, 1): x = 2, 5, 8, 11) in the first OFDM symbol of each sub slot, and a total of 100 are arranged in each sub slot. Has been. The downlink shared control channel PSCCH includes a region other than the region used by the DPICH of the first OFDM symbol in subslot 1, and the second and third OFDM symbols (C (x, 1): x ≠ 2, 5, 8,11, C (x, 2): x = 1 to 12, C (x, 3): x = 1 to 12) are used. The remaining area is used as a downlink shared data channel PDSCH. When allocating resources to mobile station apparatuses, it may be possible to allocate different PRBs in units of subslots, but the load on the control signal increases. Therefore, if the PRB of subslot 1 and the PRB of subslot 2 are previously paired, and the PRB for the mobile station apparatus is designated by subslot 1, the PRB position of subslot 2 is also determined. For example, PRB1-1 and PRB2-1 are predetermined as a pair. That is, the maximum resource specification for the mobile station apparatus is 25 PRB.

  Next, control information in the downlink shared control channel PSCCH shown in FIG. 5 will be described. The PSCCH includes downlink control information and uplink control information. The downlink control information is classified into three categories, Cat1, Cat2, and Cat3. Cat1 is information used for specifying a resource, and includes mobile station identification information and downlink data resource allocation information. Cat2 and Cat3 are the following communication parameters when the mobile station apparatus receives from the base station apparatus. Cat2 is information indicating the transport format of the PDSCH assigned to each mobile station apparatus, and includes modulation scheme, payload size, and MIMO related information. Cat3 is information related to HARQ, and includes a process number and a retransmission number in the case of asynchronous HARQ, and a retransmission number in the case of synchronous HARQ.

  Uplink control information is also classified into three categories, Cat1, Cat2, and Cat3. Cat1 is information used for resource transmission permission (UL Grant), and includes mobile station identification information and resource allocation information for uplink data transmission. Cat2 and Cat3 are the following communication parameters when the mobile station apparatus transmits to the base station apparatus. Cat2 is information for designating a transport format when each mobile station apparatus transmits uplink data. This information can be reduced by being selected by the mobile station apparatus during uplink transmission and transmitted by being included in the uplink data related control information. Cat3 is information related to HARQ, and since uplink uses synchronous HARQ, the retransmission number of synchronous HARQ is included. However, if the transmission timing is determined in advance for synchronous HARQ, this retransmission number is not necessarily information that needs to be transmitted. In addition, uplink transmission requires time synchronization processing for adjusting the difference in data arrival time to the base station device caused by a change in the distance between the base station device and the mobile station device. is there. Therefore, the uplink time synchronization signal is included in the uplink control information.

  The mobile station identification information included in Cat1 is a 16-bit C-RNTI (Cell Specific Radio Network Temporary Identity) that can be identified in the base station apparatus. The resource allocation information (RA) included in Cat1 will be described in detail with reference to FIG.

  The modulation method (MCS) included in Cat2 is coding rate 1/8 with modulation method QPSK, coding rate 1/4 with modulation method QPSK, coding rate 1/2 with modulation method QPSK, and coding method with modulation method QPSK. Rate 2/3, modulation method 16QAM, coding rate 1/2, modulation method 16QAM, coding rate 2/3, modulation method 64QAM, coding rate 1/2, modulation method 64QAM, coding rate 3/5, modulation A coding rate of 2/3 can be selected in the system 64QAM, a coding rate of 3/4 in the modulation system 64QAM, etc., but 2 bits are used to identify four of them. The payload size (PS) included in Cat2 is information indicating the number of information bits in the PDSCH, and requires 6 bits. The MIMO related information (MA) included in Cat2 includes the number of antennas, the number of streams, control information peculiar to MIMO, and various methods are conceivable. Here, 2 bits are assumed. The HARQ process number (HARQp) included in Cat3 is a number for identifying another HARQ process. The HARQ retransmission number (RV) included in Cat3 is information indicating the order of retransmission within a certain HARQ process, and is referred to as a redundancy version. The HARQ retransmission number is composed of 2 bits, and a special number among them is used as a New Data Indicator indicating that a new HARQ process is started. The uplink time synchronization signal (TA) included in the uplink control signal uses 1 bit to indicate a difference from the current time synchronization of the mobile station apparatus.

As described with reference to FIG. 4, considering overhead, the PSCCH needs to be included in a region for 3 OFDM symbols. The information amount of 3 OFDM symbols in the 5 MHz frequency bandwidth can use 800 subcarriers as shown in the following formula, excluding the DPICH region.
(12-4) × 25 + 12 × 25 × 2 = 800 subcarriers When 800 subcarriers are encoded with a modulation scheme QPSK and a coding rate of 1/3, it is 533 bits.

  FIG. 6 shows a PSCCH encoding method in the present embodiment. For the information of Cat1, information for each PRB is jointly coded (Joint Coding) (FIG. 6 (a)) or individually coded for each PRB (Separate Coding) (FIG. 6 (b)), and each mobile station apparatus The Cat1 information is configured with a plurality of SIDs (Short IDs) arranged for PRB. For example, if the number of mobile station apparatuses included in this area is eight, 3 bits are required as an identifier SID (Short ID) for identifying the eight. Resource allocation information can be configured by arranging SIDs for PRB / PRU. In that case, 25 (number of PRB / PRU) × 3 (SID) = 75 bits, and the amount of information can be greatly reduced. By receiving this Cat1 information, the mobile station apparatus detects the subsequent Cat2,3 information and the PDSCH arrangement position. Cat 2 and 3 information can be link-adapted to each mobile station apparatus. Also, the entire resource allocation information amount can be fixed. CRC is assigned when Cat2 and Cat3 are encoded. For this CRC, UEID masked CRC is applied using C-RNTI.

  The method of FIG. 6 can apply adaptive modulation and power control individually in Cat 2 and 3 according to the propagation path environment and path loss of each mobile station apparatus. Also, since Cat2 is referred to after confirming Cat1, the mobile station device does not need to decode a plurality of Cat2,3 information. In addition, since the information of Cat2 and Cat3 can be arranged at the position corresponding to the information indicated by Cat1 after confirming Cat1, the format of the control signal can be made flexible. Further, in the Cat1 information, the number of bits of resource allocation information for each mobile station apparatus varies according to the number of allocated PRBs, but the total number of bits of resource allocation information for all mobile station apparatuses is fixed. Therefore, this method can solve the problem that the resource allocation information increases as the number of mobile station apparatuses increases, and can maintain flexibility.

FIG. 10A shows the format of resource allocation information. Resource allocation information is performed by arranging the SIDs (Short IDs) as many as the number of PRBs. This resource allocation information is called a mapping table.
This mapping table indicates that the same mobile station apparatus uses PRBs with the same SID. After detecting the SID, the mobile station apparatus receives Cat2, 3 and C-RNTI that are arranged in a location associated with the SID. The mobile station apparatus can know the location of Cat2, 3 and C-RNTI according to the SID number or the position of the SID in the mapping table. Cat 2 and 3 are adapted to UEID masked CRC using C-RNTI. Since this mapping table is prepared for the downlink control information and the uplink control information, when the SID area is 3 bits in the PSCCH of the 5 MHz frequency bandwidth, the resource allocation information is 25 × 3 × 2 = 150 in total. Consists of bits.

  Next, another form of resource allocation information will be described. In this form, a unique identifier ShortUEID is assigned only within the limited resource. A plurality of PRBs (which may be PRUs but will be described as PRBs here) are grouped in advance to form a PRBG (PRB Group). In the PRBG, for example, 25 PRBs included in 1 TTI of 5 MHz are divided into 5 in the frequency direction to form 5 PRBGs, and 5 PRBs are included in each PRBG in 1 TTI. In this case, one PRBG in one radio frame includes 5 PRB (frequency direction) × 10 TTI (time direction) = 50 PRB. Further, for example, a radio frame of 10 ms in the time direction is divided into five to form five PRBGs. One PRBG in one radio frame includes 25 PRB (frequency direction) × 2 TTI (time direction) = 50 PRB. A finer PRBG may be configured by simultaneously applying division in the time direction and division in the frequency direction.

  The mobile station apparatus belongs to at least one PRBG and is assigned an identifier ShortUEID that can be identified only in the PRBG. For example, as illustrated in FIG. 7, the mobile station devices 1 to 5 acquire ShortUEIDs that can be identified in the four PRBGs PRBG # 1 to PRBG # 4. The mobile station apparatuses 6 to 8 acquire ShortUEIDs that can be identified in the two PRBGs PRBG # 1 to PRBG # 2. The mobile station apparatuses 12 to 17 obtain a ShortUEID that can be identified in PRBG # 1. In this case, since the number of mobile station apparatuses to be identified in 1 PRBG is 14, ShortUEID can be configured with 4 bits.

  FIG. 8 shows an example of ShortUEID assignment based on the assignment of PRBG to each mobile station apparatus shown in FIG. ShortUEIDs 0001 to 0101 are assigned to mobile station apparatuses 1 to 5, ShortUEIDs 0110 to 1000 are assigned to mobile station apparatuses 6 to 8, and ShortUEIDs 1001 to 1110 are assigned to mobile station apparatuses 12 to 17. ing. Since the mobile station devices 1 to 5 belong to PRBG # 1 to PRBG # 4, ShortUEIDs 0001 to 0101 are valid for PRBG # 1 to PRBG # 4, respectively. On the other hand, ShortUEIDs 1001 to 1110 assigned to the mobile station apparatuses 12 to 17 are valid only in PRBG # 1, and in PRBG # 2, other mobile station apparatuses (mobile station apparatuses 18 to 23) assign ShortUEIDs 1001 to 1110. I use it.

Here, it has been described that the same ShortUEID is assigned to mobile station apparatuses (mobile station apparatuses 1 to 5) that can use PRBG # 1 to PRBG # 4. However, it is also possible to assign different ShortUEIDs to each PRBG. is there.
The association between the ShortUEID and the C-RNTI is changed at the start of communication or when the radio bearer is re-setup, and is not frequently performed. The effectiveness of using ShortUEID is due to the fact that C-RNTI having a long bit length is not used for identification information of a mobile station apparatus transmitted every 1 TTI. That is, setup of PRBG that can be used by each mobile station apparatus and ShortUEID that is effective in the PRBG is performed by RRC (Radio Resource Control) signaling (Layer 3 control signal).

Since traffic such as VoIP is real-time traffic, only a limited number of HARQ can be applied. Further, it is not necessary to change the modulation method and the payload size every 1 TTI. Moreover, it is not necessary to use time-frequency resources without limitation, and scheduling should be performed with resources limited to some extent in consideration of reducing overhead of control information. It is necessary to mix such semi-fixed format traffic and dynamic format traffic that changes Cat2,3 information for each TTI.

  Considering the above, in the present embodiment, efficient resource allocation information is realized by using ShortUEID. FIG. 10B shows the format of resource allocation information. Resource allocation information is performed by arranging ShortUEIDs by the number of PRBs. This is equivalent to using ShortUEID instead of SID (Short ID) described above. This resource allocation information is called a mapping table.

  ShortUEID reduces information bits by limiting the resources that can be used by the mobile station apparatus, but uses C-RNTI instead of the limited ShortUEID for traffic in a dynamic format. . For a mobile station apparatus using C-RNTI, this ShortUEID is used only as a role as an SID for identifying a mobile station apparatus from which Cat2 and 3 information should be acquired in TTI. A mobile station apparatus that does not use C-RNTI can be identified by ShortUEID. A mobile station apparatus that uses C-RNTI receives Cats 2, 3 and C-RNTI that are located at locations associated with SIDs. The mobile station apparatus can know the location of Cat2, 3 and C-RNTI according to the SID number or the position of the SID in the mapping table. Cat 2 and 3 are adapted to UEID masked CRC using C-RNTI. Since this resource allocation information is prepared for downlink control information and uplink control information, when the ShortUEID / SID area is 4 bits on a 5 MHz frequency bandwidth PSCCH, a total of 25 × 4 × 2 = 200 bits is used. Will be.

  FIG. 9 shows the relationship between ShortUEID and SID. ShortUEID / SID 0001 to 0110 are used as SIDs. ShortUEID / SID 0111 to 1110 are used as ShortUEIDs for mobile station apparatuses in a semi-fixed format. This ShortUEID is an identifier that can be identified only in at least one PRBG described with reference to FIGS. The Short UEID and the usable PRBG are assigned by RRC signaling to a mobile station apparatus that applies a semi-fixed format at the start of communication or radio resource re-setup. Similarly, the designation of the transport format for the mobile station apparatus of the semi-fixed format is performed by RRC signaling.

  Short UE ID, usable PRBG, transport format (modulation method, payload size), MIMO related information, HARQ retransmission method (number of retransmissions, time frequency position for retransmission) for the mobile station apparatus of the quasi-fixed format are infrequent signaling It can be changed by RRC signaling. Further, by associating the payload size and the like with the number of allocated PRBs and the like, it is possible to eliminate the need for explicit signaling. For example, in the mapping table, when two PRBs are assigned to a certain mobile station apparatus, the payload size is double that when one PRB is assigned.

  FIG. 11 shows an example in which ShortUEID / SID is used for resource allocation. 0001 is placed in the ShortUEID / SID area (ShortUEID / SID # 1, ShortUEID / SID # 3, ShortUEID / SID # 4, ShortUEID / SID # 24) for PRB # 1, PRB # 3, PRB # 4, and PRB # 24 Has been. That is, it is shown that the mobile station apparatus of SID # 1 uses PRB # 1, PRB # 3, PRB # 4, and PRB # 24. Furthermore, Cat2,3 information for the mobile station apparatus of SID # 1 is arranged at the position associated with the position of PR number # 1, PRB # 3, PRB # 4, PRB # 24 and SID number (in this case # 1). Is done. Since Cat2 and Cat3 are adapted for UEID masked CRC using C-RNTI, there is no resource limitation for the mobile station apparatus of SID # 1. In addition, 0010 is arranged in the ShortUEID / SID area for PRB # 25. That is, it is shown that the mobile station apparatus of SID # 2 uses PRB # 25.

  Furthermore, Cat2, 3 information for the mobile station apparatus of SID # 2 is arranged at a position associated with the position of PRB # 25 and the SID number (in this case, # 2). On the other hand, 0111 is arranged in the ShortUEID / SID area for PRB # 2 and PRB # 23. However, since PRB # 2 and PRB # 23 belong to PRBG # 1 and PRBG # 5, respectively, it is indicated that different mobile station apparatuses are allocated. That is, a short UEID # 7 mobile station apparatus that can use PRBG # 1 uses PRB # 2, and a shortUEID # 7 mobile station apparatus that can use PRBG # 5 can use PRB # 23. It is shown.

Since the information of Cat 2 and 3 does not include resource allocation information, the information bits for each mobile station apparatus of the downlink control signal are 31 bits as shown in the following equation.
16 (C-RNTI) +2 (MCS) +2 (MA) +6 (PS) +3 (HARQp) +2 (RV) = 31 bits
Further, the information bits for each mobile station apparatus of the uplink control signal are 29 bits as shown in the following equation.
16 (C-RNTI) +2 (MCS) +2 (MA) +6 (PS) +2 (RV) +1 (TA) = 29 bits

In the case of FIG. 6, the information bits for all mobile station devices are as follows for resource allocation information:
4 (ShortUEID / SID) × 25 (number of PRBs) × 2 (downlink / uplink) = 200 bits
For Cat 2 and 3,
31 × 6 + 29 × 5 = 331 bits
It becomes.
Therefore, it can be seen that for mobile stations in the dynamic format, it is possible to schedule 6 mobile station apparatuses in the downlink and 5 mobile station apparatuses in the uplink.

  That is, a maximum of 25 mobile station apparatuses can be scheduled in uplink and downlink in combination with a quasi-fixed format using ShortUEID and a dynamic format using SID, but can be assigned to a mobile station apparatus of dynamic format The maximum number is also maintained. In this format, the number of bits of resource allocation information of each mobile station apparatus is variable, and the number of bits of total resource allocation information is fixed. That is, in this format, when the Cat2 and 3 areas are not used, the Cat2 and 3 areas can be used as a normal PDSCH, and the Cat2 and 3 areas do not always need to be retained.

Further, ShortUEID / SID is used only for downlink control information, and uplink control information (uplink resource allocation information) is composed of a continuous PRU start block number and end block number, and each mobile station apparatus When 8 bits of 4 (start block number) +4 (end block number) are used, in the case of FIG. 6, the information bits for all mobile station devices are 4 (ShortUEID / SID) × 25 for resource allocation information (PRB number) × 1 (downlink) = 100 bits
For Cat2, 3+ uplink control information,
(31 + 37) × 6 = 408 bits
It becomes.
Therefore, it can be seen that for mobile stations in the dynamic format, 6 mobile station apparatuses can be scheduled for each of the downlink and uplink. That is, a maximum of 25 mobile station apparatuses can be scheduled in the downlink by combining a quasi-fixed format using ShortUEID and a dynamic format using SID, and the maximum number that can be allocated to the mobile station apparatus of the dynamic format is also Maintained.

  FIG. 12 shows a physical arrangement method of resource allocation information in the case of FIG. In FIG. 12A, the distributed subcarriers are grouped into one group, and short UEID / SID information corresponding to 1 PRB is included for each group. When the size of ShortUEID / SID is 4 bits, the coding rate is 1/3, the modulation scheme is QPSK, and 6 subcarriers are required. That is, 6 subcarriers are used as ShortUEID / SID for 1 PRB. For example, 25 ShortUEID / SIDs are arranged at 25 subcarrier intervals. At 5 MHz, 300 subcarriers are included in one OFDM symbol, so half of the entire 150 subcarriers are used for ShortUEID / SID. Here, the distribution in units of one subcarrier is shown, but this resource allocation information may be configured by distribution in units of a plurality of subcarriers. For example, in the case of dispersion in units of 2 subcarrier groups, 1 PRB information is configured by 2 subcarriers × 3 subcarriers, and 25 ShortUEID / SIDs are arranged at intervals of 25 subcarrier groups. In either case, the number of subcarriers corresponding to 1 PRB is six. Further, a method of code-multiplexing ShortUEID / SID for 25 PRBs is also conceivable. What is important here is that the physical arrangement of the PRB and the physical arrangement of the ShortUEID / SID have a one-to-one correspondence, and the arrangement of the ShortUEID / SID means allocation of the PRB.

FIG. 12B includes information of ShortUEID / SID corresponding to 1 PRB with the concatenated subcarriers as one group. For example, in 5 MHz, information for 1 PRB is formed by continuous 6 subcarriers, and 25 ShortUEIDs / SIDs are arranged.
FIG. 13 shows an arrangement method of Cat 2 and 3 information for the mobile station apparatus specified by the SID. FIG. 13A shows a method in which Cats 2 and 3 are arranged so as to be distributed in the PRB group assigned to one mobile station apparatus in Cat1. FIG. 13B shows a method of arranging Cat 2 and Cat 3 in the first PRB of the PRB group assigned to one mobile station apparatus in Cat 1.
The physical allocation method of the resource allocation information in the case of FIG. 6B is a method in which a plurality of subcarriers are collectively encoded as Cat1 information without being separated for each PRB in the above arrangement of FIG. is there.

  Next, a case where additional control information is prepared for a mobile station apparatus that uses ShortUEID will be described as another form of resource allocation information. In the description so far, the transport format and the HARQ retransmission method for the quasi-fixed mobile station apparatus have been changed by RRC signaling, but some of these parameters can be dynamically changed by PSCCH. Which parameters are arranged as additional control information is determined by RRC signaling. This additional control information is referred to as LTFS (Limited Transport Format Set). As shown in FIG. 14, the information for each PRB in the mapping table is composed of ShortUEID / SID and 2-bit LTFS.

For example, when the LTFS of the downlink control information for a certain mobile station apparatus A is used as the RV of the synchronous HARQ, if the PRB used by the mobile station apparatus A is PRB # 2, the short station ID / SID # 2 is assigned to the mobile station apparatus A. ShortUEID is arranged, and synchronous HARQ RV is arranged in LTFS # 2.
This LTFS can be set for each mobile station apparatus, restricts the degree of freedom in changing the modulation scheme and payload size, and expresses 4 states with 2 bits so that four transport format sets can be selected. . Or you may comprise as information which shows the difference with the present state. For example, when the modulation method is changed from 16QAM to 64QAM, information indicating plus 1 is included in the LTFS, and when changing from 16QAM to QPSK, information indicating minus 1 is included in the LTFS.

  Since LTFS is arranged for each PRB, an LTFS that is multiple times the number of assigned PRBs can be used for a mobile station apparatus to which a plurality of PRBs are assigned. In this case, the allocated PRB number × LTFS information is regarded as one piece of information and is used as transport format change information. For example, when the mobile station apparatus A is assigned PRB # 2 and PRB # 4, that is, when the ShortUEID for the mobile station apparatus A is assigned to ShortUEID / SID # 2 and ShortUEID / SID # 4, LTFS # 4 bits including 2 and LTFS # 4 are regarded as one piece of information and used as transport format change information. For example, 2 bits are used as RV, and 2 bits are used to specify four types of restricted payload sizes.

On the other hand, the mobile station apparatus of the dynamic format using SID can also use LTFS. For a mobile station apparatus of a dynamic format that uses SID, a part of Cats 2 and 3 is arranged in LTFS. When the number of bits of LTFS is 2 bits, 2 bits of information other than Cat 2 and 3 CRC are arranged in the LTFS area, and the rest are arranged in the Cat 2 and 3 areas shown in FIG.
FIG. 15 shows an example in which LTFS is used for resource allocation. 0001 is placed in the ShortUEID / SID area (ShortUEID / SID # 1, ShortUEID / SID # 3, ShortUEID / SID # 24, ShortUEID / SID # 25) for PRB # 1, PRB # 3, PRB # 24, and PRB # 25 Has been. That is, it is shown that the mobile station apparatus of SID # 1 uses PRB # 1, PRB # 3, PRB # 24, and PRB # 25. The Cat2,3 information for the mobile station apparatus of SID # 1 is arranged for 8 bits in LTFS # 1, LTFS # 2, LTFS # 24, and LTFS # 25, and the remaining Cat2,3 information is PRB # 1. , PRB # 3, PRB # 24, PRB # 25 and the position associated with the SID number (in this case # 1). On the other hand, 0111 is arranged in the ShortUEID / SID area for PRB # 2. It is indicated that the mobile station apparatus of ShortUEID # 7 uses PRB # 2, and uses information indicated by LTFS # 2 as format change information.

In the case of FIG. 6, the information bits for all mobile station devices are as follows for resource allocation information:
(4 (ShortUEID / SID) +2 (LTFS)) × 25 (number of PRBs) × 2 (downlink / uplink) = 300 bits
For Cat 2 and 3,
(31-2 + 29-2) × 4 = 224 bits
It becomes.

  Therefore, it can be seen that 3 to 4 mobile station apparatuses can be scheduled for the downlink and uplink for the mobile station apparatus in the dynamic format. That is, it is possible to schedule a maximum of 25 mobile station apparatuses in uplink and downlink in combination with a quasi-fixed format using ShortUEID and a dynamic format using SID. The format can be changed within the range of LTFS. Although this method reduces the number of mobile station devices in the dynamic format, the format flexibility is improved with respect to the mobile station device in the semi-fixed format.

  With reference to FIG. 16, the PSCCH format setting procedure for the mobile station apparatus will be described. Here, the PSCCH format includes whether the mobile station apparatus is a dynamic format or a semi-fixed format, and further includes setting information for each of the dynamic format and the semi-fixed format. The setting information for the quasi-fixed format includes the usable PRBG group, the ShortUEID group corresponding to the PRBG group, the PDSCH / PUSCH transport format (uplink and downlink Cat2 and Cat3 information) that change quasi-fixedly, and quasi-fixed The meaning of LTFS in a general format. The setting information for the dynamic format includes a usable PRBG group, a usable SID group, and the like. In the usable PRBG group, in order to perform settings such as intermittent transmission / reception for the mobile station apparatus in the dynamic format, the PRG effective in terms of time and frequency is designated. In the usable SID group, which identifier used in the ShortUEID / SID area can be used as the SID.

  The base station apparatus uses RRC signaling for the mobile station apparatus when starting communication (during radio bearer setup, outgoing call, incoming call), or when changing the PSCCH format during communication (Sa1). Then, the PSCCH format setting signal is transmitted (Sa2). The mobile station apparatus holds the designated PSCCH format (Sa4) and uses it as a method for transmitting / receiving PSCCH, PDSCH, and PUSCH from the next time onward. The base station apparatus holds the PSCCH format setting for each mobile station apparatus (Sa3) and uses it as a method for transmitting / receiving PSCCH, PDSCH, and PUSCH from the next time on.

With reference to FIG. 17, an outline of a scheduling procedure within 1 TTI will be described. The base station apparatus transmits ShortUEID / SID and LTFS (when the format of FIG. 14 is used) at the beginning of the TTI (Sb1). The mobile station apparatus detects ShortUEID / SID and detects the allocation of PRB / PRU to the own station (Sb2). The base station apparatus transmits Cat2 and Cat3 to the area shown in FIG. 13 to the mobile station apparatus in the dynamic format (Sb3). The dynamic format mobile station apparatus detects Cat 2 and Cat 3 and checks the CRC (Sb4). The dynamic format mobile station apparatus that has detected its own C-RNTI through CRC check transmits the downlink by the base station apparatus (Sb5), and decodes the PDSCH in the PRB assigned to the own apparatus. (Sb6) For the uplink, a PUSCH radio packet is generated (Sb7) and transmitted within the assigned PRU (Sb8).
Here, the procedure is shown conceptually. Actually, 1 TTI is composed of continuous OFDM symbols, and Sb1, Sb3, and Sb5 are transmitted as continuous information from the base station apparatus. In addition, there is a time lag due to arrival time between the base station apparatus and the mobile station apparatus. The PRU allocation indicated by PSCCH is a PRU after a predetermined interval.

  The details of the processing procedure of the mobile station apparatus within 1 TTI will be described with reference to FIG. The mobile station apparatus determines whether or not its own usable PRB is included in a certain TTI (Sc1). This is determined by the usable PRB set by the PSCCH format setting described in FIG. If no usable PRB is included, the processing in this TTI is ended, the number of the TTI to be processed is updated (Sc12), and the process returns to Step Sc1. When a usable PRB is included, the mobile station apparatus determines whether the format of the PSCCH in this TTI is a dynamic format or a semi-fixed format (Sc2). In the case of the dynamic format, the mobile station apparatus receives the SID defined by the PSCCH format in the ShortUEID / SID field (Sc3). The SID is received by receiving a part or all of the SIDs arranged in the ShortUEID / SID field arranged for the number of PRBs.

  When the SID is detected (Sc4), Cats 2 and 3 in the PRB indicated by the SID are received (Sc5). The mobile station apparatus that has detected its own C-RNTI through the CRC check in the reception of Cats 2 and 3 (Sc6) transmits and receives PDSCH / PUSCH (Sc7). The mobile station apparatus that could not detect its own C-RNTI by CRC check (Sc6) judges whether all SIDs of SIDs to be detected defined by the PSCCH format have been detected (Sc8), When the SID is detected, the process at this TTI is finished, the number of the TTI to be processed is updated (Sc12), and the process returns to Step Sc1. If all SIDs have not been detected (Sc8), the SID to be detected is updated (Sc9), and the process returns to step Sc3 to perform the SID detection process again.

On the other hand, when the determination result in step Sc2 is the semi-fixed format, the mobile station apparatus receives the ShortUEID defined by the PSCCH format in the ShortUEID / SID field (Sc10). The reception of the SID receives a part or all of the ShortUEID arranged in the ShortUEID / SID field arranged for the number of PRBs. When the ShortUEID is detected (Sc11), PDSCH / PUSCH transmission / reception is performed (Sc7), the processing in this TTI is completed, the number of the TTI to be processed is updated (Sc12), and the process returns to Step Sc1. If the ShortUEID cannot be detected, the processing in this TTI is finished, the number of the TTI to be processed is updated (Sc12), and the process returns to Step Sc1. Since the mobile station apparatus of the semi-fixed format cannot perform the CRC check on the PSCCH, it substitutes the CRC check on the PDSCH.
Each mobile station apparatus may use a plurality of radio bearers, such as when using a plurality of services simultaneously. In that case, each mobile station apparatus may use both a dynamic format and a semi-fixed format. In that case, both the dynamic format processing procedure and the semi-fixed format processing procedure are executed.

With reference to FIG. 19, the details of the processing procedure of the base station apparatus within 1 TTI will be described. The base station apparatus detects a mobile station apparatus that can be scheduled in a certain TTI (Sd1). This is determined by the assignable PRB set by the PSCCH format setting described in FIG. When the mobile station apparatus which can be scheduled is not included, the process by this TTI is finished. Next, the base station apparatus selects a mobile station apparatus with a high priority from mobile station apparatuses that can be scheduled (Sd2). The priority is determined from the propagation path status, buffer status, service class, QoS, etc. of each mobile station apparatus. For the selected mobile station apparatus, the PRB / PRU to be allocated is determined and frequency scheduling is performed (Sd3). The assigned PRB / PRU to each mobile station apparatus and the ShortUEID or SID to be used for each mobile station apparatus are determined, and a mapping table is generated (Sd4). Furthermore, Cat2 and Cat3 are arranged for the mobile station apparatus in the dynamic format (Sd5). PDSCH encoded by the encoding scheme determined for each mobile station apparatus is arranged in accordance with the mapping table (Sd6). Thereafter, the process proceeds to the next TTI (Sd7) and is repeated from step Sd1.
Each mobile station apparatus may use a plurality of radio bearers, such as when using a plurality of services simultaneously. In that case, each mobile station apparatus may use both a dynamic format and a semi-fixed format. In that case, the base station apparatus executes both the processing procedure for the mobile station apparatus in the dynamic format and the processing procedure for the mobile station apparatus in the semi-fixed format.

FIG. 20 is a block diagram showing the configuration of the mobile station apparatus (terminal apparatus), and FIG. 21 is a block diagram showing the configuration of the base station apparatus.
20, the mobile station apparatus includes a transmission unit 201, a radio resource control unit 202, a radio control unit 203, a scheduling unit 204, a reception unit 205, and a radio unit 206.
The transmission unit 201 includes a data control unit 211, a data modulation unit 212, and a DFT-S-OFDM modulation unit 213. The reception unit 205 includes a channel estimation unit 221, an OFDM demodulation unit 222, and a data demodulation unit 223. And a control data extraction unit 224.

The data control unit 211 receives transmission data or control data, and arranges uplink data related control information, uplink data non-related control information, and user data to be sent by PRU according to an instruction from the scheduling unit 204.
The data modulation unit 212 modulates the control data and the transmission data using the encoding method of the modulation method of the MCS information passed from the scheduling unit 204.

The DFT-S-OFDM modulation unit 213 receives data-modulated transmission data or control data, multiplies the input signal by serial / parallel conversion, spreading code and scrambling code, and performs DFT conversion, subcarrier mapping processing, IFFT DFT-spread OFDM signal processing such as (Inverse Fast Fourier Transform) conversion, CP (Cyclic Prefix) insertion, and filtering is performed to generate a DFT-spread OFDM signal.
As the uplink communication scheme, a single carrier scheme such as DFT-spread OFDM or VSCRF-CDMA is assumed, but a multicarrier scheme such as the OFDM scheme may be used.

Radio section 206 sets the radio frequency specified by radio control section 203, up-converts the modulated data to the radio frequency, and transmits the radio data to the base station apparatus.
Radio section 206 receives downlink data from the base station apparatus, down-converts it to a baseband signal, and passes the received data to the OFDM demodulation section.
Channel estimation section 221 estimates radio channel characteristics from downlink pilot channel DPICH and passes the estimation result to OFDM demodulation section 222. In addition, in order to notify the base station apparatus of the radio propagation path estimation result, it is converted into CQI information, and the CQI information is passed to the data control unit 211 and the scheduling unit 204.

The OFDM demodulator 222 performs OFDM signal processing such as CP removal, filtering, and FFT conversion, and demodulates the OFDM signal from the downlink radio channel estimation result of the channel estimator 221.
The data demodulator 223 demodulates the received data from the downlink MCS information extracted from the control data extractor 224.
The control data extraction unit 224 uses the PSCCH format instructed from the radio resource control unit 202 and separates received data into PDSCH containing user data and PSCCH containing control data in the procedure shown in FIG. In addition, the control data extraction unit 224 extracts RRC signaling in the PDSCH and sends it to the radio resource control unit 202. The PSCCH reception control unit 225 of the control data extraction unit 224 extracts a mapping table (assignment information), an SID corresponding to the own device, and uplink and downlink Cat2, 3 control information from the PSCCH.

  Further, the PSCCH reception control unit 225 acquires the ShortUEID corresponding to the own device, the usable PRBG, and Cat2, 3 control information from the PSCCH format management unit 207 of the radio resource control unit 202, and downloads the downlink information in the mapping table. The PRB assigned to the own device is detected. According to the detection result, the PSCCH reception control unit 225 sends the downlink MCS information in the downlink Cat 2 and 3 control information to the data demodulation unit 223 and instructs the OFDM demodulation unit 222 to receive the PRB. Also, the PSCCH reception control unit 225 passes the uplink MCS information in the uplink Cat 2 and 3 control information, the uplink information in the mapping table, and the SID corresponding to the own device to the scheduling unit 204.

The scheduling unit 204 receives the MCS information of the base station apparatus uplink, the mapping table, and the SID corresponding to the own apparatus from the PSCCH reception control unit 225 of the control data extracting unit 224, and can further use the Short UEID corresponding to the own apparatus. The PRUG and Cat 2 and 3 control information are acquired from the PSCCH format management unit 207 of the radio resource control unit 202 to detect the PRU assigned to the own device, and the mobile station device actually transmits the transmission data and control data. In order to perform mapping to the channel, an instruction for transmitting transmission data and control data is given to the data control unit 211, the data modulation unit 212, and the DFT-S-OFDM modulation unit 213.
In the present embodiment, the scheduling unit 204 and the control data extraction unit 224 function as an assignment receiving unit.

  The radio resource control unit 202 manages usable PRBs, intermittent transmission / reception cycles, PSCCH formats, and the like in the radio frame of the mobile station apparatus. Also, management information such as the PSCCH format is passed to the transmission unit 201 and the reception unit 205 to control the entire mobile station apparatus. Further, the radio resource control unit 202 receives RRC signaling from the control data extraction unit 224. The ShortUEID detecting unit (quasi-fixed identification compatible receiving means) 208 of the radio resource control unit 202 extracts the ShortUEID corresponding to the C-RNTI of the own device and the usable PRBG and PRUG from the received RRC signaling, The data is stored in the PSCCH format management unit (corresponding storage unit) 207 in association with each other. In addition, when the ShortUEID detection unit 208 detects the ShortUEID corresponding to the own device, the communication parameter detection unit (semi-fixed communication parameter receiving unit) 209 of the radio resource control unit 202 transmits the received RRC signaling to the own device. Corresponding Cat 2 and 3 control information is extracted and stored in the PSCCH format management unit 207 in association with the Short UE ID stored in the Short UE ID detection unit 208.

In FIG. 21, the base station apparatus includes a data control unit 101, a data modulation unit 102, an OFDM modulation unit 103, a scheduling unit 104, a channel estimation unit 105, a DFT-S-OFDM demodulation unit 106, and a data demodulation. Unit 107, control data extraction unit 108, radio unit 109, radio resource control unit 110, and RRC signaling unit 111.
The scheduling unit 104 includes a DL scheduling unit 112 that performs downlink scheduling and a UL scheduling unit 113 that performs uplink scheduling. Scheduling section 104 generates a mapping table representing the results of these schedulings, that is, the assignment of mobile station apparatuses to PRBs and PRUs. In this mapping table, the mobile station apparatus is represented by using the SID or the ShortUEID acquired from the PSCCH format management unit 115 of the radio resource control unit 110, and the scheduling unit 104 associates the SID with the mobile station apparatus. Are performed during scheduling. The scheduling unit 104 stores the generated mapping table, information indicating a correspondence relationship between SID (dynamic allocation temporary terminal identification information) and C-RNTI (static terminal identification information), and Cat 2 and 3 control information. Output to the control unit 101.

  The data control unit 101 receives transmission data to each mobile station apparatus n, control data, and transmission information by RRC signaling, and maps the control data to CCPCH, SCH, PCH, DPICH, and PSCCH according to an instruction from the scheduling unit 104 Then, the transmission data for each mobile station apparatus n and the transmission information by RRC signaling are mapped to the PDSCH. In particular, for the PSCCH, the PSCCH generation control (assignment notification means) 114 performs mapping table (assignment information) based on the frequency scheduling information received from the scheduling unit 104, the SID and C-RNTI used in the mapping table. Mapping of information (dynamic terminal correspondence information), Cat2 and 3 control information (communication parameters), etc., representing the correspondence relationship between the two and the like.

The data modulation unit 102 performs data modulation using the data modulation method and coding method of the MCS information passed from the scheduling unit 104.
The OFDM modulation unit 103 performs OFDM signal processing such as serial / parallel conversion, IFFT conversion, CP insertion, and filtering of an input signal to generate an OFDM signal.
Radio section 109 upconverts the OFDM signal to a radio frequency and transmits it to the mobile station apparatus. Radio section 109 receives uplink data from mobile station apparatus n, down-converts it to a baseband signal, and passes the received data to DFT-S-OFDM demodulation section 106 and channel estimation section 105.

Channel estimation section 105 estimates the radio channel characteristics from the uplink pilot signal, and passes the estimation result to DFT-S-OFDM demodulation section 106. In addition, the radio channel estimation result is passed to the scheduling unit 104 in order to perform uplink scheduling.
The DFT-S-OFDM demodulation unit 106 performs filtering, CP removal, DFT processing, and IFFT processing, and performs DFT-S-OFDM demodulation from the radio channel estimation result of the channel estimation unit.
The data demodulator 107 demodulates the received data from the downlink MCS information extracted from the control data extractor 108.

The control data extraction unit separates the received data into user data (PUSCH) and control data (uplink data related control information, uplink data non-related control information) and passes them to the upper layer. Among the control data, uplink MCS information is sent to the data demodulator 107, and downlink CQI information is passed to the scheduler 104.
The DL scheduling unit 112 of the scheduling unit 104 includes CQI information notified from the mobile station apparatus n, PRBs that can be used in radio frames of each mobile station apparatus notified from the radio resource control unit 110, intermittent transmission / reception cycles, PSCCH format, From control information such as buffer status, scheduling for mapping user data to each downlink channel and MCS for modulating each data are calculated.

  Also, the UL scheduling section 113 receives the uplink radio channel estimation result notified from the channel estimation section 105, the resource allocation request from the mobile station apparatus n, and the radio frame of each mobile station apparatus notified from the radio resource control section. The scheduling for mapping user data to each uplink channel and the MCS for modulating each data are calculated from control information such as usable PRU, intermittent transmission / reception cycle, PSCCH format, and buffer status.

The radio resource control unit 110 includes a PSCCH format management unit 115, a Short UEID notification unit 116, and a communication parameter notification unit 117, and updates the stored contents of the PSCCH format management unit 115 in accordance with the input control information. The PSCCH format setting is managed using RRC signaling with the radio resource control unit. In addition, the scheduling unit is notified of control information such as a usable PRB, intermittent transmission / reception cycle, PSCCH format, and buffer status in the radio frame of each mobile station apparatus.
The PSCCH format management unit (corresponding storage unit) 115 includes a ShortUEID (temporary terminal identification information for semi-fixed allocation), a C-RNTI (static terminal identification information), and PRBG and PRUG (block group) that can use the ShortUEID. ) And Cat 2 and 3 control information (communication parameters) are stored in association with each other. Further, the PSCCH format management unit 115 stores each SID in association with PRBG and PRUG that can use the SID.

The ShortUEID notification unit (semi-fixed identification correspondence notifying unit) 116 supports the correspondence between the ShortUEID stored in the PSCCH format management unit 115 and the C-RNTI and the usable PRBG and PRUG based on the control information input to the radio resource control unit 110. When the attachment is changed, the data control unit 101 is instructed to notify the mobile station apparatus of the change by RRC signaling.
The communication parameter notifying unit (semi-fixed communication parameter notifying unit) 117 uses the control information input to the radio resource control unit 110, Cat2 associated with the ShortUEID and C-RNTI stored in the PSCCH format management unit 115. 3 When the control information is changed, the data control unit 101 is instructed to notify the mobile station apparatus of the change by RRC signaling.

  20, the radio resource control unit 202, the scheduling unit 204, the reception unit 205, and the data control unit 101, the data modulation unit 102, the OFDM modulation unit 103, the scheduling unit 104, and the channel estimation unit in FIG. 105, a program for realizing the functions of the DFT-S-OFDM demodulator 106, the data demodulator 107, the control data extractor 108, and the radio resource controller 110 is recorded on a computer-readable recording medium. These programs may be processed by causing the computer system to read and execute the program recorded in the above. Here, the “computer system” includes an OS and hardware such as peripheral devices.

The program that operates in the base station apparatus and mobile station apparatus related to the present invention is a program (a program that causes a computer to function) that controls the CPU and the like so as to realize the functions of the above-described embodiments related to the present invention. Information handled by these devices is temporarily stored in the RAM at the time of processing, then stored in various ROMs and HDDs, read out by the CPU as necessary, and corrected and written.
As a recording medium for storing the program, a semiconductor medium (for example, ROM, nonvolatile memory card, etc.), an optical recording medium (for example, DVD, MO, MD, CD, BD, etc.), a magnetic recording medium (for example, magnetic tape, Any of a flexible disk etc. may be sufficient.
In addition, by executing the loaded program, not only the functions of the above-described embodiment are realized, but also based on the instructions of the program, the processing is performed in cooperation with the operating system or other application programs. The functions of the invention may be realized.
In addition, when distributing to the market, the program can be stored and distributed in a portable recording medium, or transferred to a server computer connected via a network such as the Internet. In this case, a server that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, and a server computer in that case. The recording medium of the present invention includes a program that holds a program for a certain period of time, such as a storage device such as a volatile memory or a hard disk in the computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design and the like within a scope not departing from the gist of the present invention.

  The present invention is suitable for use in a mobile phone system in which a mobile phone terminal device is a mobile station device, but is not limited thereto.

It is a figure which shows the structural example of the downlink radio frame in one Embodiment of this invention. It is the figure which expressed the structure of PRB in the same embodiment by arrangement | sequence C (f, t). It is a figure which shows the structural example of the uplink PRU in the same embodiment. It is a figure which shows the channel structural example of downlink PRB in the same embodiment. It is a figure explaining the control information of the downlink shared control channel PSCCH in the same embodiment. It is a figure which shows the encoding method of PSCCH in the embodiment. It is the figure which showed the example of the identifiable range of ShortUEID to which the mobile station apparatus in the same embodiment is allocated. It is the figure which showed the example of allocation of ShorUEID in the embodiment. It is the figure which showed the example of allocation of SID and ShortUEID in the embodiment. It is a figure which shows the format of the resource allocation information in the same embodiment. It is a figure which shows the example which used ShortUEID / SID in the same embodiment for resource allocation. It is a figure which shows the physical arrangement | positioning method of the resource allocation information in the same embodiment. It is a figure which shows the arrangement | positioning method of the information of Cat2, 3 with respect to the mobile station apparatus designated by SID in the embodiment. It is a figure which shows another form of the format of the resource allocation information in the same embodiment. It is a figure which shows the resource allocation information example which used LTFS in the same embodiment for resource allocation. It is a sequence diagram explaining the PSCCH format setting procedure in the same embodiment. It is a sequence diagram explaining the scheduling procedure in 1TTI in the embodiment. 7 is a flowchart for explaining a processing procedure of the mobile station apparatus in the embodiment. It is a flowchart explaining the process sequence of the base station apparatus in the embodiment. It is a schematic block diagram which shows the structure of the mobile station apparatus in the embodiment. It is a schematic block diagram which shows the structure of the base station apparatus in the same embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 ... Data control part 102 ... Data modulation part 103 ... OFDM modulation part 104 ... Scheduling part 105 ... Channel estimation part 106 ... DFT-S-OFDM demodulation part 107 ... Data demodulation part 108 ... Control data extraction part 109 ... Radio | wireless part 110 ... Radio resource control unit 112 ... DL scheduling unit 113 ... UL scheduling unit 115 ... PSCCH format management unit 116 ... ShortUEID notification unit 117 ... Communication parameter notification unit 201 ... Transmission unit 202 ... Radio resource control unit 203 ... Radio control unit 204 ... Scheduling unit DESCRIPTION OF SYMBOLS 205 ... Reception part 206 ... Radio | wireless part 207 ... PSCCH format management part 208 ... ShortUEID detection part 209 ... Communication parameter detection part 211 ... Data control part 212 ... Data modulation part 213 ... DFT- -OFDM modulation unit 221 ... channel estimating portion 222 ... OFDM demodulating portion 223 ... data demodulating portion 224 ... control data extraction unit 225 ... PSCCH reception control unit

Claims (17)

In the base station apparatus that assigns a plurality of blocks determined by a predetermined frequency band and time band to each terminal apparatus and performs wireless communication with the terminal apparatus,
Corresponding storage means for storing the correspondence between the quasi-fixed allocation temporary terminal identification information and the terminal device for the quasi-fixed allocation temporary terminal identification information to which the terminal device is allocated in advance;
The terminal device of each block using the temporary terminal identification information for quasi-fixed assignment that stores the correspondence in the correspondence storage means and the temporary terminal identification information for dynamic assignment that assigns a terminal device for each notification Scheduling means for generating assignment information representing assignments to
The allocation information, and static terminal identification information that uniquely identifies the terminal device in the base station device in order to identify the terminal device specified by the dynamic allocation temporary terminal identification information used in the allocation information. The base station apparatus comprising: an allocation notification unit that notifies the terminal apparatus.   The correspondence storage means stores, in addition to the correspondence relationship between the quasi-fixed temporary terminal identification information for allocation and the terminal device, a correspondence relationship with a block group in which the correspondence relationship is established. The base station apparatus according to 1.   With reference to the correspondence storage means, in addition to the correspondence relationship between the temporary terminal identification information for quasi-fixed allocation and the static terminal identification information, information indicating the correspondence relationship with the block group in which the correspondence relationship is established is displayed on the terminal The base station apparatus according to claim 2, further comprising a semi-fixed identification correspondence notifying unit that notifies the apparatus. In addition to the correspondence relationship, the correspondence storage means stores a quasi-fixed communication parameter that is quasi-fixedly changed among communication parameters used for transmission / reception by the terminal device corresponding to the quasi-fixed allocation temporary terminal identification information. ,
The base station apparatus according to any one of claims 1 to 3, further comprising quasi-fixed communication parameter notification means for notifying the terminal apparatus of the quasi-fixed communication parameter.   5. The allocation notification unit notifies a dynamic communication parameter that is dynamically changed among communication parameters used for transmission and reception by a terminal device corresponding to the temporary terminal identification information for semi-fixed allocation. The base station apparatus as described in.   The allocation notification means, together with the notification of the allocation information and the static terminal identification information, sets communication parameters used for transmission / reception by the terminal device corresponding to each value of the temporary terminal identification information for dynamic allocation used in the allocation information. The base station apparatus according to any one of claims 1 to 5, wherein notification is made. Among a plurality of blocks determined by a predetermined frequency band and time band, in a terminal device that wirelessly communicates with the base station device in a block allocated by the base station device,
The allocation of each block to the terminal device is expressed by using the quasi-fixed allocation temporary terminal identification information to which the terminal device is allocated in advance and the dynamic allocation temporary terminal identification information to which the terminal device is allocated for each notification. Receiving allocation information and static terminal identification information for uniquely identifying the terminal device in the base station device for identifying the terminal device specified by the dynamic allocation temporary terminal identification information used in the allocation information And a terminal device characterized by comprising allocation receiving means for detecting a block allocated to the own device. Corresponding storage means for storing a value of the temporary terminal identification information for quasi-fixed assignment associated with the own device,
The assignment receiving means is stored in the correspondence storage means when detecting a block assigned to the own apparatus when the own apparatus is associated with the value of the temporary terminal identification information for quasi-fixed assignment. The terminal device according to claim 7, wherein a value of the quasi-fixed allocation temporary terminal identification information is used. The correspondence storage means stores, in addition to the correspondence between the quasi-fixed allocation temporary terminal identification information associated with the own device and the static terminal identification information, the correspondence with the block group in which the correspondence is established. The terminal device according to claim 8, wherein:   In addition to the correspondence relationship between the temporary identification information for quasi-fixed allocation and the static terminal identification information, the quasi-fixed identification-compatible reception for receiving information representing the correspondence relationship with the block group in which the correspondence relationship is established from the base station apparatus The terminal device according to claim 9, further comprising means. The correspondence storage means stores, in addition to the correspondence relationship, a semi-fixed communication parameter to be semi-fixedly changed among communication parameters used for transmission / reception with the base station device,
The terminal device according to any one of claims 8 to 10, further comprising quasi-fixed communication parameter receiving means for receiving the quasi-fixed communication parameter from a base station device.   The allocation receiving means receives communication parameters used for transmission / reception with the base station apparatus when the static terminal identification information received together with the allocation information matches the static terminal identification information of the own apparatus. The terminal device according to any one of claims 7 to 11.   The terminal apparatus according to claim 12, wherein the allocation receiving unit receives a dynamic communication parameter that is dynamically changed among communication parameters used for transmission and reception with the base station apparatus. A computer provided in a base station apparatus that assigns a plurality of blocks determined by a predetermined frequency band and a time band to a terminal apparatus and wirelessly communicates with the terminal apparatus,
The temporary storage identification information for quasi-fixed assignment that stores the correspondence with the terminal device in the correspondence storage means and the temporary terminal identification information for dynamic assignment that assigns the terminal device for each notification Scheduling means for generating allocation information representing allocation to terminal devices;
The allocation information, and static terminal identification information for uniquely identifying the terminal device in the base station device for identifying the terminal device specified by the dynamic allocation temporary terminal identification information used in the allocation information. A program of a base station apparatus that functions as an assignment notification means for notifying the terminal apparatus. A computer provided in a terminal device that wirelessly communicates with the base station device in a block assigned by the base station device from among a plurality of blocks determined by a predetermined frequency band and time zone,
The allocation of each block to the terminal device is expressed by using the quasi-fixed allocation temporary terminal identification information to which the terminal device is allocated in advance and the dynamic allocation temporary terminal identification information to which the terminal device is allocated for each notification. Receiving allocation information and static terminal identification information for uniquely identifying the terminal device in the base station device for identifying the terminal device specified by the dynamic allocation temporary terminal identification information used in the allocation information And a terminal device program that functions as an assignment receiving means for detecting a block assigned to the own device. In a control information transmission method in a base station apparatus that assigns a plurality of blocks determined by a predetermined frequency band and a time band to a terminal apparatus and wirelessly communicates with the terminal apparatus,
The base station apparatus stores temporary correspondence identification information for quasi-fixed assignment in which the correspondence storage means stores the correspondence relationship with the terminal apparatus, and temporary assignment identification information for dynamic assignment that assigns the terminal apparatus for each notification. A first step of generating assignment information representing assignment of each block to a terminal device;
The base station apparatus uniquely identifies the terminal apparatus in the base station apparatus for specifying the terminal apparatus specified by the allocation information and the dynamic allocation temporary terminal identification information used in the allocation information. And a second step of notifying the terminal device of the target terminal identification information. A control information receiving method in a terminal device that wirelessly communicates with the base station device in a block allocated by a base station device from a plurality of blocks determined by a predetermined frequency band and time zone,
The terminal device uses the semi-fixed allocation temporary terminal identification information to which the terminal device is allocated in advance, and the dynamic allocation temporary terminal identification information to which the terminal device is allocated for each notification. Static terminal that uniquely identifies a terminal device in the base station device for identifying the terminal device specified by the allocation information indicating allocation to the terminal device and the dynamic allocation temporary terminal identification information used in the allocation information A control information receiving method comprising: a first step of receiving identification information and detecting a block assigned to the own device.

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