WO2010122833A1 - Mobile station apparatus and data mapping method - Google Patents

Abstract

A mobile station apparatus capable of efficient data mapping processing even when a plurality of data blocks have been allocated simultaneously from a base station apparatus. The mobile station apparatus, which uses a plurality of component carriers and connects to the base station apparatus, maps data having high transmission rights to the plurality of data blocks (11 to 13) allocated simultaneously from the base station apparatus so that data can be transmitted from the mobile station apparatus itself. The data are mapped in order from transmission data having high priority rank among the data, and in a way that does not spread transmission data of the same priority rank across the data blocks (11 to 13).

Description

Mobile station apparatus and data mapping method

The present invention relates to a mobile station apparatus and a data mapping method, and more particularly to a mobile station apparatus that maps data to a plurality of radio resources allocated from a base station apparatus, and a data mapping method thereof.

In 3GPP (3rd Generation Partnership Project), the W-CDMA system has been standardized as a third generation cellular mobile communication system, and services have been started sequentially. In addition, HSDPA (High Speed Packet Access), which further increases the communication speed, has been standardized and a service has been started.

On the other hand, in 3GPP, the standardization of the evolution of third generation wireless access (Evolved Universal Terrestrial Radio Access; hereinafter referred to as “EUTRA”) is underway.

The EUTRA downlink communication method employs an OFDM (Orthogonal Frequency Division Multiplexing) method that is resistant to multipath interference and suitable for high-speed transmission. As an uplink communication scheme, the single-carrier frequency division multiplexing SC-FDMA can reduce the peak-to-average power ratio PAPR (Peak-to-Average-Power-Ratio) of the transmission signal in consideration of the cost and power consumption of the mobile station apparatus. (Single Carrier-Frequency Division Multiple Access) DFT (Discrete Fourier Transform) -spread OFDM system is adopted.

Non-Patent Documents 1 and 2 disclose channel configurations in which the OFDM scheme is adopted as the EUTRA downlink and the DFT-spread OFDM scheme single carrier communication scheme is adopted as the EUTRA uplink.

FIG. 10 is a diagram illustrating a channel configuration example of EUTRA. In the downlink of EUTRA, as shown in the EUTRA-compatible system 100 of FIG. 10, the downlink pilot channel DPiCH (Downlink Pilot Channel), the downlink synchronization channel DSCH (Downlink Synchronization Channel), and the downlink shared channel PDSCH (Physical Downlink Shared Channel), downlink control channel PDCCH (Physical Downlink Control Channel), and common control channel CCPCH (Common Control Control Physical Channel).

In the uplink of EUTRA, as shown in the EUTRA compatible system 100, the uplink pilot channel UPiCH (Uplink Pilot Channel), the random access channel RACH (Random Access Channel), the uplink shared channel PUSCH (Physical Uplink Shared Channel), the uplink It is composed of a link control channel PUCCH (Physical Uplink Control Channel).

The configuration of the downlink will be described with reference to FIG. 11 and FIG. FIG. 11 is a diagram illustrating a configuration example of a downlink subframe in EUTRA. FIG. 12 is a diagram illustrating a configuration example of a downlink radio frame in EUTRA in which a plurality of subframes in FIG. 11 are arranged. In FIG. 12, the radio frame 120 is shown with the time axis on the horizontal axis and the frequency axis on the vertical axis.

In the downlink subframe 110 shown in FIG. 11, one resource block is composed of 12 subcarriers and 7 OFDM symbols. In subframe 110, downlink pilot channel DPiCH is as shown in legend 111. Then, one subframe 110 is configured using two resource blocks, and the base station apparatus allocates at least one downlink shared channel PDSCH to the mobile station apparatus and transmits data to the mobile station apparatus . Each subframe 110 is transmitted in order as in the radio frame 120 shown in FIG. Note that the downlink shared channel PDSCH allocation information is indicated by the downlink control channel PDCCH.

The uplink configuration will be described with reference to FIGS. FIG. 13 is a diagram illustrating a configuration example of an uplink subframe in EUTRA, and FIG. 14 is a diagram illustrating a configuration example of an uplink radio frame in EUTRA in which a plurality of subframes in FIG. 13 are arranged. FIG. 15 is a diagram illustrating an uplink resource allocation method in EUTRA. In FIG. 13, the subframe 130 is shown with the time axis on the horizontal axis and the frequency axis on the vertical axis. In FIG. 14 and FIG. 15, the radio frames 140 and 150 are shown with the frequency axis on the horizontal axis and the time axis on the vertical axis.

Similarly, in the uplink, one resource block is composed of 12 subcarriers and 7 OFDM symbols, and one subframe 130 is composed using two resource blocks. As shown in the legend 131, the uplink pilot channel UPiCH is allocated to 2 and 6 symbols, and data is allocated to other symbols. As shown in the radio frame 140 of FIG. 14, there are many resource blocks (RB) on the frequency axis, the uplink control channel PUCCH is arranged outside the frequency band, and the uplink shared channel PUSCH is the uplink control channel. It is arranged in a form sandwiched between PUCCH. The base station apparatus allocates at least one or more uplink shared channel PUSCH to the mobile station apparatus, and the mobile station apparatus transmits data using the allocated uplink shared channel PUSCH. In FIG. 14, the random access channel RACH and the uplink pilot channel UPiCH are not shown.

In addition, as shown in the uplink radio frame 150 in FIG. 15, even if a plurality of uplink shared channels PUSCH are allocated, the allocated resources are processed as one data block. In FIG. 15, reference numerals 151 to 154 denote assigned data blocks. Similarly, even if a plurality of downlink shared channels PDSCH are allocated, the entire allocated resource is processed as one data block. That is, in both uplink and downlink, if there is an error in the transmitted data block, the same number of resources are allocated and data retransmission processing is performed. Note that the data size of the data block changes not only by the number of allocated resource blocks but also by MCS (Modulation and Coding Scheme) specified by the base station apparatus. Similarly to downlink, uplink shared channel PUSCH allocation information is indicated by downlink control channel PDCCH. Note that for high-real-time data such as VoIP (Voice over Internet Protocol), the base station apparatus may allocate periodic radio resources to the mobile station apparatus in advance. For example, one resource block is allocated at 20 ms intervals.

In the uplink, mapping control of each data to the data block allocated by the base station apparatus is performed on the mobile station apparatus side using the following procedure (for example, refer to Non-Patent Documents 3, 4, and 5). .

The upper layer (RRC: Radio Resource Control Layer) prioritizes each data (for example, real-time data such as telephone (VoIP) and non-real-time data such as HTTP (Hypertext Transfer Protocol) and FTP (File Transfer Protocol)). Control uplink data scheduling.

Each data is given PBR (Prioritized Bit Rate) and BSD (Bucket Size Duration). Each data unit has a variable Bj, the initial value of Bj is zero, and Bj increases by PBR for each subframe. The value of Bj does not exceed Bucket Size. If the size exceeds Bucket Size, Bj is set to the value of Bucket Size. The Bucket Size is calculated from PBR × BSD, and the PBR and BSD are notified from the upper layer.

Then, when there is a new transmission, the mobile station apparatus executes the following procedure. First, the mobile station apparatus allocates resources to logical channels as follows.
1. All data with Bj> 0 are allocated to resources in descending order of priority. When PBR is set to “infinity”, the mobile station apparatus assigns the data as the highest priority over other data.
2. The mobile station apparatus reduces Bj according to the size assigned by “1”.
3. When resources remain, data is allocated in descending order of priority regardless of the value of Bj. If the data priorities are equal, data is allocated at the same rate.

The uplink resource data mapping process in EUTRA will be specifically described with reference to FIGS. 16 and 17.
It is assumed that there is a priority among the four data, and the priority is higher in order from the data <1>. The bit rate for each subframe of the data <1>, <2>, <3>, <4> is set as the data amount indicated by the data 161a, 162a, 163a, 164a, respectively. The bit rate after 4 subframes has the data amount indicated by the data 161b, 162b, 163b, and 164b. For all data, Bj is equivalent to 4 subframes and Bj> 0. It is assumed that the data amount of each priority in the transmission buffer of the mobile station device at this time is in a state as shown on the left side of FIG. That is, data <1> is data 161c for 8 subframes, data <2> is data 162c for 4 subframes, data <3> is data 163c for 12 subframes, and data <4> is for 4 subframes. The data 164c are in the transmission buffer.

If the radio resource indicated by the data block 165 in FIG. 17 is allocated from the base station apparatus, the data is mapped to the data block 165 of the radio resource in order from the data <1> having the highest priority. As a result, as shown by the data block 165a, it is possible to map up to a part of the data <3>. At this time, the value of Bj of each data is Bj = ((4-8) × PBR) <0 because the data amount indicated by the data 161d for four subframes is additionally sent for Bj of data <1>. For data <2>, Bj = ((4-4) × PBR) = 0, and for Bj of data <3>, an extra data amount indicated by data 163d for four subframes is sent, so Bj = ((4- 8) × PBR) <0, and Bj of data <4> has not been transmitted at all, so Bj = ((4-0) × PBR)> 0. In the next subframe, Bj is counted for one subframe. Since data <1> and data <3> are transmitted in an extra 3 subframes, Bj <0, data <2> is 1 subframe, Bj> 0, and data <4> remains 5 subframes. Therefore, Bj> 0. When radio resources are allocated in this subframe, the transmission order of data is prioritized by data 162e of data <2> where Bj> 0 (but not remaining in this example) and data 164e of data <4> Data 162e of data <2> having a higher rank is the first, and then data 164e of data <4>. The third is the data 161e of the data <1> with high priority and the data B1 ≦ 0 (but not remaining in this example), and the last is the data 163e of the data <3>.

In 3GPP, discussion of Advanced-EUTRA, which is a further evolution of EUTRA, has begun (see, for example, Non-Patent Document 6). In Advanced-EUTRA, it is assumed that communication at a maximum transmission rate of 1 Gbps or more and 500 Mbps or more of the uplink is performed using a band up to a maximum of 100 MHz bandwidth in each of the uplink and the downlink.

FIG. 18 is a diagram for explaining a downlink component carrier in Advanced-EUTRA, and FIG. 19 is a diagram for explaining an uplink component carrier in Advanced-EUTRA. In FIG. 18 and FIG. 19, the radio frames 180 and 190 are respectively shown with the frequency axis on the horizontal axis and the time axis on the vertical axis.

In Advanced-EUTRA, as shown by radio frames 180 and 190, it is considered that a 100 MHz band can be realized by bundling a plurality of 20 MHz bands of EUTRA so that the mobile station apparatus of 100 MHz can be accommodated. Yes. In Advanced-EUTRA, one 20 MHz band of EUTRA is called a component carrier (CC).

Further, Advanced-EUTRA incorporates MIMO (Multi-Input Multi-Output) transmission in the uplink / downlink to enable high-speed data transmission.

In Advanced-EUTRA, data is exchanged in component carrier units. That is, in EUTRA, data is exchanged between the base station apparatus and the mobile station apparatus in one data block. However, in Advanced EUTRA, there are a maximum number of data blocks in the number of component carriers, and retransmission processing is performed in units of component carriers. Done.

In Advanced-EUTRA, as in EUTRA, the mobile station apparatus maps data to the allocated data block. However, EUTRA data mapping is the same as performing data mapping with one component carrier, and does not consider a plurality of component carriers. In other words, Advanced-EUTRA does not consider data mapping in the case where there are a plurality of data blocks, so that optimum data mapping cannot be performed.

The present invention has been made in view of the above-described actual situation, and an object of the present invention is to provide a mobile station apparatus capable of efficient data mapping processing even when a plurality of data blocks are simultaneously allocated from the base station apparatus. Is to provide.

In order to solve the above-described problem, a first technical means of the present invention is a mobile station apparatus connected to a base station apparatus using a plurality of component carriers, wherein data transmission from the mobile station apparatus is performed. Therefore, for a plurality of data blocks allocated simultaneously from the base station apparatus, data having a high transmission right is transmitted in order from transmission data having a high priority among data, and transmission data having the same priority is the data block. It is characterized by mapping so as not to cross between.

The second technical means is a mobile station apparatus connected to the base station apparatus using a plurality of component carriers, and is simultaneously allocated from the base station apparatus for data transmission from the mobile station apparatus Based on the size of each data block and the data size of the transmission data of each priority, the transmission data having the same priority is not straddled between the data blocks. , Mapping.

According to the third technical means, in the first or second technical means, after mapping the data with the high transmission right, the data with the low transmission right is matched with the remaining area of the data block in the order of the data size of the transmission data. Mapping.

A fourth technical means is a data mapping method in a mobile station apparatus connected to a base station apparatus using a plurality of component carriers, wherein the base station apparatus transmits data from the mobile station apparatus. For a plurality of data blocks allocated at the same time, data having a high transmission right is ordered in order from transmission data having a high priority among data so that transmission data having the same priority does not cross between the data blocks. , Mapping.

A fifth technical means is a data mapping method in a mobile station apparatus connected to a base station apparatus using a plurality of component carriers, wherein the base station apparatus transmits data from the mobile station apparatus. Based on the size of each data block and the transmission data size of each priority, the transmission data having the same priority is transmitted between the data blocks with respect to a plurality of data blocks allocated at the same time. It is characterized by mapping so that it does not occur.

Sixth technical means, in the first or second technical means, after mapping the data having a high transmission right, the data having the low transmission right is matched with the remaining area of the data block in the order of the data size of the transmission data. Mapping.

According to the present invention, even when a plurality of data blocks are simultaneously assigned from the base station apparatus, efficient data mapping to the data blocks can be performed in the mobile station apparatus. Therefore, the mobile station apparatus can be configured as an apparatus suitable for Advanced-EUTRA.

It is a figure for demonstrating an example of the data mapping process in the mobile station apparatus which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating an example of the data mapping process in the mobile station apparatus which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating the other example of the data mapping process in the mobile station apparatus which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating the other example of the data mapping process in the mobile station apparatus which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the structural example of the mobile station apparatus which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating an example of the data mapping process in the mobile station apparatus which concerns on the 2nd Embodiment of this invention. It is a figure for demonstrating an example of the data mapping process in the mobile station apparatus which concerns on the 2nd Embodiment of this invention. It is a figure for demonstrating the other example of the data mapping process in the mobile station apparatus which concerns on the 2nd Embodiment of this invention. It is a figure for demonstrating the other example of the data mapping process in the mobile station apparatus which concerns on the 2nd Embodiment of this invention. It is a figure which shows the channel structural example of EUTRA. It is a figure which shows the structural example of the subframe of the downlink in EUTRA. FIG. 12 is a diagram illustrating a configuration example of a downlink radio frame in EUTRA in which a plurality of subframes of FIG. 11 are arranged. It is a figure which shows the structural example of the uplink sub-frame in EUTRA. FIG. 14 is a diagram illustrating a configuration example of an uplink radio frame in EUTRA in which a plurality of subframes of FIG. 13 are arranged. It is a figure which shows the resource allocation method of the uplink in EUTRA. It is a figure which shows the data mapping process of the uplink resource in EUTRA. It is a figure which shows the data mapping process of the uplink resource in EUTRA. It is a figure for demonstrating the downlink component carrier in Advanced-EUTRA. It is a figure for demonstrating the uplink component carrier in Advanced-EUTRA.

(First embodiment)
Assuming a system that uses a plurality (or a plurality of bands) of subframes such as the subframe 130 of FIG. 13 and transmits and receives a frame such as the radio frame of FIG. 19 as an uplink channel, A first embodiment of the present invention will be described. In the following description, one band is also called a component carrier (CC).

In the following description, Bj is a variable for each data unit, and indicates a transmission right for data transmission (a variable indicating whether or not to transmit to an assigned radio resource). When the value of Bj of data is Bj ≦ 0, even if radio resources are allocated, it is not always necessary to transmit data (the transmission right is low). When Bj> 0, data is transmitted using the radio resources as much as possible. (Sending rights are high). Each data is given PBR (Prioritized Bit Rate) and BSD (Bucket Size Size Duration). The initial value of Bj is zero, and Bj increases by PBR for each subframe. The value of Bj does not exceed Bucket Size. If the size exceeds Bucket Size, Bj is set to the value of Bucket Size. The Bucket Size is calculated from PBR × BSD, and the PBR and BSD are notified from the upper layer.

In the data mapping procedure described in the prior art, when it is applied when there are a plurality of data blocks, Bj> 0 and priority between data (priority: real-time data such as telephone (VoIP)) or HTTP or FTP The data to be transmitted is mapped in the order of higher priority (data order such as non-real-time data). In this case, data across data blocks is transmitted in units of data blocks (retransmitted to the base station apparatus) ), It will have to be divided. Since retransmission processing is performed in units of data blocks, even the data allocated at the same time may be received and processed at different times in the base station apparatus, not only the data combining process becomes complicated, but also the buffer capacity of the base station apparatus You must prepare a large buffer.

Therefore, in the present invention, mapping is performed in a device connected to the base station device using a plurality of CCs so that data having the same priority need not be divided and transmitted later. In the first embodiment of the present invention, a plurality of data blocks (a plurality of data blocks allocated simultaneously in each of a plurality of CCs) simultaneously allocated from the base station apparatus for data transmission from the mobile station apparatus itself are used. On the other hand, data with a high transmission right (illustrated as data with a transmission right higher than threshold Bj = 0) is ordered from transmission data with a high priority so that transmission data with the same priority does not straddle between data blocks. To map. Hereinafter, a specific example of such a data mapping method in the present embodiment will be described.

0. The total data capacity M of all allocated data blocks is calculated.
1. The total data capacity N of the data Bj> 0 and the data capacity P in the range of Bj = 0 with the data Bj> 0 are calculated. The data capacity P in the range of Bj> 0 and Bj = 0 is the data capacity that must be transmitted in the subframe to which the radio resource is allocated. In other words, among the data of Bj> 0, This indicates the capacity of data that should be Bj = 0 (change to Bj = 0) when it is mapped to all the data blocks (total data capacity M) and transmitted.
2. The data block capacity M, the data capacity N of Bj> 0, and the data capacity P in the range of Bj = 0 are compared.

[When M> N (Procedure a)]
3a. One data block is selected at random, and when the data block capacity is Bj> 0 and the data size of the data with the highest priority among the data is larger than the data size, the data with the highest priority is mapped. If it is less than the data size, another data block is selected.

4a. If the remaining capacity of the mapped data block is less than or equal to the data size of the next higher priority data, the data is mapped to the remaining area.
5a. When the data capacity is small, the next higher priority data is mapped to another data block. If the data block size is equal to or smaller than the data size, another block is selected in the same manner.
6a. Repeat 4a and 5a.

7a. When mapping of data of Bj> 0 is completed and data mapping area remains in the data block, data of Bj ≦ 0 is mapped in order. At this time, the data is mapped in accordance with the remaining area of each data block in the order of increasing data capacity regardless of the priority order between the data. After all mapping is completed, Bj is reduced according to the mapped data size.

[When P <M <N or M <P (Procedure b)]
3b. One data block is selected at random, and when the data block capacity is the data with the highest priority among the data and is not less than the data size in the range of Bj = 0, the data with the highest priority is mapped. If it is less than the data size, another data block is selected.

4b. If the remaining capacity of the mapped data block is the next higher priority data and is larger than the data size in the range of Bj = 0, this data is mapped to the remaining area of the mapped data block.

5b. When the data capacity of the mapped data block is small, the data block is randomly selected as another data block, and the next higher priority data is mapped to the selected data block. If the data block size is equal to or smaller than the data size, another block is selected in the same manner.

6b. 4b and 5b are repeated for the data of Bj> 0. If the remaining capacity of the mapped data block or the empty data block is smaller than the data size, the data is arranged in the remaining part.

7b. If there is a remaining remaining amount in the data block, the data in the data block with high priority between data is arranged in the remaining part. After all mapping is completed, Bj is reduced according to the mapped data size.

Next, the operation of the mobile station apparatus according to this embodiment will be described with reference to FIGS. FIGS. 1 and 2 are diagrams for explaining an example of data mapping processing in the mobile station apparatus according to the first embodiment of the present invention. FIGS. 3 and 4 illustrate the first embodiment of the present invention. It is a figure for demonstrating the other example of the data mapping process in the mobile station apparatus which concerns.

FIG. 1 shows an example in which three data blocks are scheduled for data transmission from a mobile station device, that is, radio resources are allocated to three CCs. As shown in the upper part of FIG. 1, three data blocks 11 to 13 are allocated from the base station apparatus, and these data blocks 11 to 13 are transmitted to the data block apparatus 11 through the mobile station apparatus shown in FIG. 2 as mobile station data. A case where target data (transmission data) is mapped will be described. The transmission data includes four data 21 to 24 with Bj> 0 and three data 25 to 27 with Bj ≦ 0. In FIG. 2, it is assumed that the transmission data 21 to 24 and 25 to 27 have higher priority among the data in order from the top.

This example corresponds to the case of M> N described above. First, the data capacities of the data blocks 11 to 13 and the sizes of the data 21 to 24 with Bj> 0 are calculated. Since the data capacities of the data blocks are large, data mapping is performed in step a. The data block 11 is selected, the data capacity of the data block 11 is compared with the data size of the data 21, and the data capacity of the data block 11 is large, so the data of the data 21 is mapped to the data block 11.

Next, the remaining capacity of the data block 11 and the data size of the data 22 are compared. Since the data size of the data 22 and the remaining capacity of the data block 11 are the same, the data 22 is mapped to the data block 11. Next, the data block 12 is selected, the data capacity of the data block 12 is compared with the data size of the data 23, and the data 23 is similarly mapped to the data block 12. The remaining data capacity of the data block 12 is compared with the data size of the data 24. Since the data size of the data 24 is small, it is compared with the data block 13. Since the data capacity of the data block 13 is large, the data 24 is mapped to the data block 13.

Mapping of the data 21 to 24 with Bj> 0 is finished, and there is still a capacity for arranging data in the data block 12 and the data block 13, so Bj ≦ 0 data is mapped. The free capacities of the data blocks 12 and 13 are compared, and since the data block 13 has a large free capacity, the data 27 having the largest data size is mapped to the data block 13. At this time, since all of the data 27 cannot be mapped, the remaining data 27a is turned at the next transmission. Data 25 is mapped to the data block 12, and data 25a that cannot be mapped in the same way is turned to the next transmission. In addition, since the data 26 is not mapped at all, it is also rotated at the next transmission.

In this way, data can be mapped without data having the same priority straddling between data blocks.

Further, the remaining data will be mapped after the next time as described above. In this example, since transmission of data with Bj> 0 has been completed, for example, radio resources are allocated in the next subframe. When no new data arrives at the transmission buffer, the mapping is only data of Bj ≦ 0. However, since Bj increases by PBR in the next subframe, Bj changes, and based on the changed Bj Perform data mapping.

FIG. 3 shows an example where two data blocks are scheduled for data transmission from the mobile station apparatus, that is, when radio resources are allocated to two CCs. As shown in the upper part of FIG. 3, two data blocks 31 and 32 are allocated from the base station apparatus, and the data blocks 31 and 32 are transmitted to the data block apparatus 31 and 32 as illustrated in FIG. 4 as mobile station data. A case where data is mapped will be described. This transmission data includes four data 41 to 44 with Bj> 0 and three data 45 to 47 with Bj ≦ 0. In FIG. 4, it is assumed that the transmission data 41 to 44 and 45 to 47 have a higher priority among the data in order from the top.

This example corresponds to the case of P <M <N or M <P. First, the data capacities of the data blocks 31 and 32 and the sizes of the data 41 to 44 with Bj> 0 are calculated. Since the data capacity of the data block is small, data mapping is performed in step b.

The data block 31 is selected, the data capacity of the data block 31 is compared with the data size of the data 41 in the range of Bj = 0 (the size of the data 41a), and the data block 31 has a large data capacity. Map to 31.

Next, the remaining capacity of the data block 31 is compared with the data size of the data 42 in the range of Bj = 0 (the size of the data 42a). Since the remaining capacity of the data block 31 is large, the data 42a is mapped to the data block 31. . Next, the remaining capacity of the data block 31 is compared with the data size of the data 43 in the range of Bj = 0 (the size of the data 43a). Since the remaining capacity of the data block 31 is small, the data block 32 is selected and the data block 32 is selected. Are compared with the data size of the data 43a, and the data 43a is similarly mapped to the data block 32.

Next, the remaining capacity of the data block 32 is compared with the data size of the data 44 in the range of Bj = 0 (the size of the data 44a). Since the remaining capacity of the data block 32 is large, the data 44a is mapped to the data block 32. .

The mapping of the data in the range of Bj = 0 is finished, and there is still a capacity for arranging the data in the data block 31, and the data 41 (data other than the data 41a) with high priority remains. Data is mapped to the data block 31. At this time, the data 42b, 43b, 44b, 45, 46, and 47 that cannot be mapped are turned to the next transmission.

By doing in this way, the data size (data capacity at which Bj = 0) that must be transmitted with data of Bj> 0 can be mapped to the data block without straddling the data block.

Similarly, in this example, the remaining data is mapped from the next time onward, but since the value of Bj changes after the next subframe, the data is mapped again based on Bj.

Next, a configuration example of the mobile station apparatus according to this embodiment will be described with reference to FIG. FIG. 5 is a block diagram showing a configuration example of the mobile station apparatus according to the first embodiment of the present invention.

The mobile station device 50 illustrated in FIG. 5 includes a data mapping unit 51, a transmission data control unit 52, a transmission processing unit 53, a radio unit 54, a scheduling unit 55, a data demapping unit 56, a control data extraction unit 57, and a reception process. Part 58 is provided. The scheduling unit 55 includes a control data creation unit 55a, a UL scheduling unit 55b, and a control data analysis unit 55c.

User data as transmission data is input to the data mapping unit 51. The data mapping unit 51 maps user data to each data block as described above according to an instruction such as a data block size from the scheduling unit 55, and converts it into packet data to be transmitted. The data mapping unit 51 outputs the packet data to be transmitted to the transmission data control unit 52.

The transmission data control unit 52 assigns each packet data to each channel of each component carrier (CC) according to an instruction from the scheduling unit 55 and sends the packet data to the transmission processing unit 53. The transmission processing unit 53 performs the following transmission processing. That is, the signal from the transmission data control unit 52 is encoded and modulated. The modulated signal is serial / parallel converted, and after parallelization, DFT (Discrete （Fourier Transform) -IFFT (Inverse ： Fastier Transform: Inverse Fast Fourier Transform) processing is performed to perform parallel / serial conversion. Then, the time axis signal is serialized. A cyclic prefix (Cyclic Prefix: CP) is inserted into the serialized signal. The signal in which the CP is inserted is converted into an analog signal by a D / A (digital / analog) conversion unit and passed to the radio unit 54. The radio unit 54 up-converts this analog signal to a radio frequency and transmits it from the transmission antenna.

Also, the radio unit 54 down-converts the radio signal received from the antenna and passes it to the reception processing unit 58. The reception processing unit 58 performs A / D (analog / digital) conversion on the signal passed from the radio unit 54, performs FFT (Fast Fourier Transform) processing, decoding, demodulation processing, and the like, and demodulates the data Is passed to the control data extraction unit 57. The control data extraction unit 57 looks at the downlink control channel PDCCH and determines whether the data is addressed to the own mobile station device. If the data is addressed to the own mobile station device, the downlink control channel demodulated by the reception processing unit 58 It is divided into control data for PDCCH and user data for downlink shared channel PDSCH. The control data extraction unit 57 passes control data to the scheduling unit 55 and passes user data to the data demapping unit 56. Further, it instructs the scheduling unit 55 to return a response result for the received user data. The data demapping unit 56 divides the user data passed from the control data extraction unit 57 by data priority and passes it to the upper layer.

The scheduling unit 55 includes a UL scheduling unit 55b, a control data analysis unit 55c, and a control data creation unit 55a. The control data creation unit 55a creates control data and creates a response result of downlink data received by the control data extraction unit 57. The control data analyzing unit 55c analyzes the control data of the downlink control channel PDCCH, and passes uplink data scheduling information to the UL scheduling unit 55b. The UL scheduling unit 55b notifies the data mapping unit 51 of the data capacity of the data block to be transmitted based on the scheduling information, notifies the transmission data control unit 52 of the arrangement of user data and control data in each channel, Control the data.

The mobile station device 50 having such a configuration can efficiently map data even when a plurality of data blocks are allocated by mapping transmission data to data blocks in the data mapping unit 51 as described above.
In this embodiment, an example is given in which transmission data is processed with one data block for one component carrier, but the same processing is performed even when a plurality of data blocks are handled within one component carrier. it can.

Further, in this embodiment, the mobile station apparatus randomly selects one data block from among a plurality of allocated data blocks, and maps data having high priority between data to the data block with Bj> 0 As an example, data blocks may be selected in the order of data block size (for example, in descending order of data block size). By doing so, it is possible to transmit more data with high priority between data when Bj> 0.

(Second Embodiment)
In the first embodiment, the data block is selected at random. However, as the second embodiment, an embodiment in which the data block is selected in consideration of the data capacity of the data block and the size of the transmission data will be described.

The mobile station apparatus according to the present embodiment has the size of each data block and the data size of transmission data of Bj> 0 for a plurality of data blocks allocated simultaneously from the base station apparatus for data transmission from the mobile station apparatus. Based on the above, mapping is performed so that transmission data having the same priority does not cross between data blocks. In particular, in the present embodiment, in the data mapping method in the first embodiment, the data block selected as the mapping destination differs depending on the size (data capacity) of each allocated data block. Hereinafter, a specific example of such a data mapping method in the present embodiment will be described.

0. The total data capacity M of all allocated data blocks is calculated.
1. The total data capacity N of data of Bj> 0 and the total data capacity P of Bj> 0 in the range of Bj = 0 are calculated. The data capacity P in the range of Bj> 0 and Bj = 0 is the data capacity that must be transmitted in the subframe to which the radio resource is assigned.
2. The data block capacity M, the data capacity N of Bj> 0, and the data capacity P in the range of Bj = 0 are compared.

[When M> N (Procedure a)]
3a. Rearrange data blocks in descending order of data capacity. Further, the data is rearranged in the order of the data size in the data of Bj> 0.
4a. A data block is selected in descending order of the capacity of the data block, and data is selected in the descending order of data size with data of Bj> 0. Map the selected data to the selected data block.

5a. The data blocks including the remaining capacity of the mapped data block are rearranged in descending order of the data capacity.
6a. Repeat 4a and 5a.

7a. After mapping of data of Bj> 0, if there is an area where data mapping is possible, data of Bj ≦ 0 is mapped in order. At this time, the data is mapped according to the remaining area of each data block in descending order of the data capacity. After all mapping is completed, Bj is reduced according to the mapped data size.

[P <M <N (procedure b)]
3b. Rearrange data blocks in descending order of data capacity. Further, the data is rearranged in the order of large data size in the range of Bj = 0 in the data of Bj> 0.

4b. A data block is selected in descending order of the capacity of the data block, and data is selected in descending order of data size of data in the range of Bj = 0 in the data of Bj> 0. Map the selected data to the selected data block.

5b. The data blocks including the remaining capacity of the mapped data block are rearranged in descending order of the data capacity.
6b. Repeat 4b and 5b.

7b. If there is a remaining remaining amount in the data block, the data in the data block with high priority between data is arranged in the remaining part. After all mapping is completed, Bj is reduced according to the mapped data size.

[When M <P (Procedure c)]
3c. One data block is selected at random, and when the data block capacity is the data with the highest priority among the data and is not less than the data size in the range of Bj = 0, the data with the highest priority is mapped. If it is less than the data size, another data block is selected.

4c. If the remaining capacity of the mapped data block is equal to or smaller than the data size of the next higher priority data in the range of Bj = 0, the data is mapped to the remaining area of the mapped data block.

5c. When the data capacity of the mapped data block is small, the data with the next highest priority is randomly selected and mapped to other data blocks. If the data block size is equal to or smaller than the data size, another block is selected in the same manner.

6c. 4c and 5c are repeated for the data of Bj> 0. If the remaining capacity of the mapped data block or the empty data block is smaller than the data size, the data is arranged in the remaining part.

7c. If there is a remaining remaining amount in the data block, the data in the data block with higher priority is placed in the remaining part. After all mapping is completed, Bj is reduced according to the mapped data size.

Next, the operation of the mobile station apparatus according to this embodiment will be described with reference to FIGS. 6 and 7 are diagrams for explaining an example of data mapping processing in the mobile station apparatus according to the second embodiment of the present invention. FIGS. 8 and 9 are diagrams according to the second embodiment of the present invention. It is a figure for demonstrating the other example of the data mapping process in the mobile station apparatus which concerns.

FIG. 6 shows an example when three data blocks are scheduled for data transmission from the mobile station apparatus, that is, when radio resources are allocated to three CCs. As shown in the upper part of FIG. 6, three data blocks 61 to 63 are allocated from the base station device, and these data blocks 61 to 63 are transmitted to the data block devices 61 to 63 illustrated as mobile station data in FIG. A case where data is mapped will be described. The transmission data includes four data 71 to 74 with Bj> 0 and three data 75 to 77 with Bj ≦ 0. In FIG. 7, it is assumed that the transmission data 71 to 74 and 75 to 77 have higher priority among the data in order from the top.

This example corresponds to the case of M> N. First, the data capacity of the data blocks 61 to 63, the size of the data 71 to 74 with Bj> 0, and the data capacity in the range of Bj = 0 are calculated. Since the data capacity of the data block is large, data mapping is performed in step a. .

The data blocks 61 to 63 are rearranged in descending order of data capacity (in order of the data blocks 63, 61, 62). Further, the data is rearranged in the descending order of the data size in the data of Bj> 0 (in the order of data 74, 73, 71, 72).

The data block 63 with the largest data block size is selected, and the data 74 with the largest data size is mapped to the data block 63. Next, the data blocks 61 to 63 are rearranged again in the order of the data capacity including the remaining capacity of the data block 63 (in the order of the data blocks 61, 62, 63). A data block 61 having a large data block size is selected, and data 73 having a large data size is mapped to the data block 61.

Subsequently, the data blocks 61 to 63 are rearranged again in the order of the data capacity including the remaining capacity of the data block 61 (in the order of the data blocks 62, 63, 61). A data block 62 having a large data block size is selected, and data 71 having a large data size is mapped to the data block 62. The data blocks 61 to 63 are rearranged again in the order of the data capacity including the remaining capacity of the data block 62 (in order of the data blocks 63, 61, 62). A data block 63 having a large data block size is selected, and the remaining data 72 is mapped to the data block 63.

Mapping of data of Bj> 0 is finished, and there is still a capacity for arranging data in the data block 61 and the data block 62, so Bj ≦ 0 data is mapped. The free capacities of the data blocks 61 and 62 are compared, and since the data block 61 has a large free capacity, the data 77 having the largest data size is mapped to the data block 61. At this time, since all of the data 77 cannot be mapped, the rest is turned on the next transmission. Data 75 is mapped to the data block 61. Further, data 76 that cannot be mapped is also rotated at the next transmission.

In this way, data can be mapped without data having the same priority straddling between data blocks.

Further, as in the first embodiment, the remaining data is mapped from the next time onward. In this example, since the data of Bj> 0 has been transmitted, for example, the next subframe In the case where the radio resource is allocated and the new data has not arrived at the transmission buffer, the mapping is only data of Bj ≦ 0. However, in the next subframe, Bj increases by PBR and Bj changes. , Bj is used to perform data mapping.

FIG. 8 shows an example when two data blocks are scheduled for data transmission from the mobile station apparatus, that is, when radio resources are allocated to two CCs. As shown in the upper part of FIG. 8, two data blocks 81 and 82 are allocated from the base station apparatus, and these data blocks 81 and 82 are transmitted as illustrated in FIG. 9 as mobile station data in the mobile station apparatus. A case where data is mapped will be described. The transmission data includes four data 91 to 94 with Bj> 0 and three data 95 to 97 with Bj ≦ 0. In FIG. 9, it is assumed that the transmission data 91 to 94 and 95 to 97 have higher priority among the data in order from the top.

This example corresponds to the case of P <M <N. First, the data capacity of the data blocks 81 and 82, the size of the data 91 to 94 with Bj> 0, and the data capacity in the range of Bj = 0 are calculated, and “Bj> 0 data size”> “data block data capacity”. Since “Bj = 0 in the range of data size”, data mapping is performed in step b.

The data blocks 81 and 82 are rearranged in descending order of data capacity (the order of the data blocks 82 and 81). In addition, the sizes of the data in the range of Bj = 0 ( data 91a, 92a, 93a, 94a) are rearranged in descending order ( data 94a, 93a, 91a, 92a). Since the data 91a and 92a have the same size, the original order may be maintained.

The data block 82 having the largest data block size is selected, and the data 94a having the largest data size is mapped to the data block 82. Next, including the remaining capacity of the data block 82, the data blocks 81 and 82 are rearranged again in the order of the data capacity (the order of the data blocks 81 and 82). A data block 81 having a large data block size is selected, and data 93a having a large data size is mapped to the data block 81.

Subsequently, the data blocks 81 and 82 are rearranged again in the order of the data capacity including the remaining capacity of the data block 81 (the order of the data blocks 82 and 81). A data block 82 having a large data block size is selected, and data 91a having a large data size is mapped to the data block 82. The data blocks 81 and 82 are rearranged again in the order of the data capacity, including the remaining capacity of the data block 82 (in the order of the data blocks 81 and 82). A data block 81 having a large data block size is selected, and the remaining data 92a is mapped to the data block 81.

The mapping of the data in the range of Bj = 0 is finished, and there is still a capacity for arranging the data in the data block 82. Data 91a and data 94a are mapped in the data block 82, and the priority of the data is that of the data 91a. Therefore, the remaining data 91 (data other than the data 91a) is mapped to the remaining data block 82.

By doing in this way, the data size (data capacity in which Bj = 0) that must be transmitted with data of Bj> 0 can be mapped to the data block without straddling the data block.

Moreover, the data 92b other than the data 92a of the data 92, the data 93b other than the data 93a of the data 93, the data 94b other than the data 94a of the data 94, and the data 95, 96, 97 remain by this mapping. Turn to mapping.
Similarly, in this example, the remaining data is mapped from the next time onward, but since the value of Bj changes after the next subframe, the data is mapped again based on Bj.

Note that a specific example of the procedure c is the same as that described with reference to FIGS. 3 and 4 as the procedure b in the first embodiment, and a description thereof will be omitted. In the second embodiment, only the example in which mapping is performed from a large data block among a plurality of allocated data blocks has been described, but conversely, small Bj> 0 data or It is also possible to perform mapping from data in the range of Bj = 0.

The mobile station apparatus according to the second embodiment has the same configuration as the mobile station apparatus 50 according to the first embodiment described in FIG.

The mobile station device 50 having such a configuration efficiently maps the transmission data to the data block in the data mapping unit 51 as described in the second embodiment, even when a plurality of data blocks are allocated. Can map data.

In this embodiment, an example is given in which transmission data is processed with one data block for one component carrier, but the same processing is performed even when a plurality of data blocks are handled within one component carrier. it can.

In addition, in the case where radio resources are regularly allocated from the base station apparatus to the mobile station apparatus with respect to data with high real-time properties such as VoIP (Voice over Internet Protocol), radio resources allocated in advance If radio resources are allocated to the same subframe on different component carriers, the target data is mapped to the predetermined radio resource data block, and the newly allocated radio resource data block Other data may be mapped by the method of the first embodiment or the second embodiment. By doing so, the base station apparatus can easily process data with high real-time characteristics that is recognized in advance from the mobile station apparatus.

If there is no data targeted for a predetermined radio resource, the data is mapped by the method of the first embodiment or the second embodiment for all assigned radio resources and data. .

11, 12, 13 ... data block, 21, 22, 23, 24 ... data of Bj> 0, 25, 26, 27 ... data of Bj ≦ 0, 50 ... mobile station apparatus, 51 ... data mapping unit, 52 ... transmission Data control unit 53 ... Transmission processing unit 54 ... Wireless unit 55 ... Scheduling unit 55a ... Control data creation unit 55b ... UL scheduling unit 55c ... Control data analysis unit 56 ... Data demapping unit 57 ... Control Data extraction unit, 58... Reception processing unit.

Claims (6)

1. A mobile station apparatus connected to a base station apparatus using a plurality of component carriers, and a plurality of data blocks allocated simultaneously from the base station apparatus for data transmission from the mobile station apparatus, A mobile station apparatus which maps data having a high transmission right in order from transmission data having a high priority among data so that transmission data having the same priority does not cross between the data blocks. .
2. A mobile station apparatus connected to a base station apparatus using a plurality of component carriers, for a plurality of data blocks allocated simultaneously from the base station apparatus for data transmission from the mobile station apparatus, The data having a high transmission right is mapped based on the size of each data block and the data size of the transmission data of each priority so that transmission data of the same priority does not straddle between the data blocks. A mobile station device.
3. The mobile station apparatus according to claim 1 or 2, wherein after mapping the data with a high transmission right, the data with a low transmission right is matched to the remaining area of the data block in the data size of the transmission data, A mobile station apparatus that performs mapping.
4. A data mapping method in a mobile station apparatus connected to a base station apparatus using a plurality of component carriers, wherein a plurality of data allocated simultaneously from the base station apparatus for data transmission from the mobile station apparatus It is characterized in that data having a high transmission right is mapped to blocks in order from transmission data having a high priority among data so that transmission data having the same priority does not cross between the data blocks. Data mapping method.
5. A data mapping method in a mobile station apparatus connected to a base station apparatus using a plurality of component carriers, wherein a plurality of data allocated simultaneously from the base station apparatus for data transmission from the mobile station apparatus Data with a high transmission right is mapped to a block based on the size of each data block and the data size of transmission data of each priority so that transmission data of the same priority does not cross between the data blocks. A data mapping method characterized by the above.
6. The data mapping method according to claim 4 or 5, wherein after mapping the data with a high transmission right, the data with a low transmission right is matched with the remaining area of the data block in the order of the data size of the transmission data, A data mapping method characterized by mapping.

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