JP2003032224A - Identification value selecting equipment and communications equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable effectively selection of an identification value in a short time. SOLUTION: A TFCI selection processing part 232 forms a CTFC table and a TFCI table to a second table memory 324b and a first table memory 324a. In the CTFC table, a TFCI-CTFC is divided into two, by a table-dividing means 323b, and CTFC is arranged in the order of magnitude. In the TFCI table, TFCI is stored in the logic address as an address region, where corresponding CTFC is stored by the CTFC table. The processing part 232 retrieves CTFC which is to be informed from the CTFC table with a first retrieval means. The processing part 232 sets values as the TFCI with a first selecting means, the values of which are stored in the address region of the TFCI table having the same logic address as the address region of the CTFC table, in which the CTFC is detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an identification value selecting device for selecting an identification value used for notifying a communication network of a condition value which is a numerical value indicating a predetermined communication condition, and an identification value corresponding to the condition value. The present invention relates to a communication device that notifies a communication condition to a communication network according to.

[0002]

2. Description of the Related Art In recent years, a spread spectrum communication system, which is resistant to interference and interference, has attracted attention as one of communication systems applied to a wireless mobile communication system. 3GPP (3rd Generati
on Partnership Project) WCDMA (Wide
band CDMA) system introduces a new technology called multi-call that simultaneously transmits and receives various multimedia information using a wide communication band.

A feature of multi-call is that, for example, the user can access the Internet or receive moving image information while making a voice call, and various types of information are simultaneously multiplexed for transmission and reception.

In order to realize this technique, radio control is performed using data called TrCH (transport channel) as one unit. The types of TrCH are shown in FIG. Each Tr
CHs are distinguished by the Bit Error Rate that can be tolerated on the radio. For example, AMR classifies important audio information as Class A, B,
It is sent and received by ranking in the order of C.

The information of each TrCH is integrated into one by interleaving processing to form radio data. At this time, in order for the communication network (base station) and the mobile station to recognize what kind of each TrCH is multiplexed in the wireless data, the CTFC (Calculated Transpo
Notification of a numerical value called rt Format Combination) is performed.

CTFC is defined as follows in 3GPP TS 25.331 14.10:

[0007]

[Equation 1]

Since it is difficult to understand only with the above formulas, a concrete example will be shown.

Consider, for example, a CCTrCH composed of AMR speech Codec + Packet + DCCH.

For example, AMR CLASS in TrCH type TFl table UL (Packet32kbps + AMR + DCCH) shown in FIG.
A = 1 × 81, CLASS B = 1 × 103, CLASS C = 1 × 60, Packet
= 1 × 336 and DCCH = 1 × 148 are selected as the transport block size, CTFC = TFI2 (AMR_A) × P1 + TFI1 (AMR_B) × P2 + TFI1 (A
MR_C) x P3 + TFI1 (Packet) x P4 + TFI1 (DCCH) x P4 where P4, P3, P2, and P1 are P5 = L4 x L3 x L2 x L1 = 3 x 2 x 2 x 9 = 108 P4 = L3 x L2 x L1 = 3 × 2 × 2 = 12 P3 = L2 × L1 = 3 × 2 = 6 P2 = L1 = 3 P1 = LO = 1 Therefore, CTFC = 131.

By obtaining the CTFC in this way,
A value corresponding to the combination of TrCH will be obtained.

However, instead of notifying this CTFC as it is, actually, each value of the CTFC is associated with a TFCI (Transport Format Combina).
An ID called "tionIndicator) is transmitted every 10 ms. Then, the correspondence between TFCI and CTFC is individually defined for each base station, and the base station appropriately notifies the mobile station in the TFCI-CTFC table as shown in FIG.

Therefore, the mobile station retrieves the CTFC value calculated as described above from the TFCI-CTFC table and selects the TFCI value associated with the value.
That is, if CTFC = 131 is obtained as described above and the TFCI-CTFC table is as shown in FIG. 14, TFCI = 11 is selected.

By the way, the TFCI-CTFC table is
In FIG. 14, the TFCI is 54 because it is simplified.
Although there is only one, the number of TFCIs handled by the base station is arbitrary for each base station, and in many cases it exceeds 1000 in many cases. Therefore, a huge amount of time is required to search the CTFC from the TFCI-CTFC table,
There is a risk that the TFCI may not be selected in time for the notification timing every 10 ms.

[0015]

As described above, the WCD
When the multi-call, which is a feature of MA, is realized, if the number of elements of each TrCH is large, the number of combinations will be enormous and the number of TFCIs will be enormous. And in such a case, the CTFC from the TFCI-CTFC table
There was a problem that it took a huge amount of time to search for.

[0016] Such a defect is not unique to TFCI and CTFC defined by 3GPP, but CTF.
This occurs when a condition value indicating a communication condition such as C is notified by an identification value such as TFCI indicating this condition value by another value.

The present invention has been made in consideration of such circumstances, and an object thereof is to enable efficient selection of an identification value in a short time.

[0018]

To achieve the above object, the first aspect of the present invention is a numerical value indicating a predetermined communication condition when performing communication through a predetermined communication network, for example, 3GPP.
TFCI defined in 3GPP for notifying the communication network of the condition value such as CTFC defined in 1.
In order to select the identification value such as, the condition value shown in the condition value-identification value table information indicating the correspondence between the condition value and the identification value and notified from the communication network The condition value table information that is rearranged in the order according to, and the condition value table information is associated with the condition value shown in the corresponding region to the region corresponding to the region where each condition value is located. Table division means for creating identification value table information indicating an identification value, first search means for searching the condition value table information for the condition value to be notified to the communication network by the dichotomy method, and the first search means.
A first selection value is selected as an identification value to be notified to the communication network, the identification value shown in the area of the identification value table information corresponding to the area in which the condition value is detected by the search means in the condition value table information. And means for selection.

By taking such a measure, the search for the condition value to be notified from the condition value included in the condition value-identification value table information is performed by searching the condition value table in which the condition values are arranged in the order of size. The division method is performed without matching with all the condition values included in the condition value-identification value table information. Therefore, the processing amount required for the condition value search can be reduced.

Further, in order to achieve the above object, in the second invention, in addition to the first invention, an identification value corresponding to a condition value to be notified to the communication network is added to the condition value-identification value table information. Based on the second selection means and the selection of the identification value corresponding to the condition value to be notified to the communication network, the number of identification values included in the condition value-identification value table information is less than or equal to a predetermined number. In some cases, the second selection means is provided, and in other cases, the selection control means is provided to cause the first selection means to perform the respective operations.

As a result of taking such means, when the number of condition values-identification values included in the identification value table information is larger than the predetermined number, the condition value-as in the first aspect of the invention.
The condition value to be notified is searched for from the condition values included in the identification value table information by the dichotomy method from the condition value table in which the condition values are arranged in the order of size, but included in the condition value-identification value table information. When the number of identification values remains below a predetermined number, the condition value-the condition value included in the identification value table information is searched for the condition value to be notified by a simple search from the condition value-identification value table information. . Therefore, when the number of identification values is small, the labor of creating the condition value table and the identification value table is saved, and the total processing amount can be reduced.

In order to achieve the above object, the third aspect of the present invention is a numerical value indicating a predetermined communication condition when performing communication through a predetermined communication network, for example, C defined by 3GPP.
In order to select the identification value such as TFCI defined by 3GPP for notifying the communication network of the condition value such as TFC, the identification values selected in the past are the same in order from the newest selection timing. A cache means for holding a predetermined number without including a value, and a condition value to be notified to the communication network, which holds a condition value corresponding to each identification value in association with each of these identification values. Second selecting means for selecting a corresponding identification value based on the condition value-identification value table information, and second searching means for searching a condition value to be notified to the communication network from the condition values held in the cache means. Search means and the condition value detected by the search means are associated with each other by the cache means, and the identification value held in the cache means is notified to the communication network. When selecting an identification value corresponding to a condition value to be notified to the communication network, a third selecting means for selecting the condition value to be notified to the communication network is first searched for the condition value to be notified to the communication network. When the condition value cannot be detected by the second searching unit, the second selecting unit detects the condition value, and the second searching unit detects the condition value. If possible, the selection means is provided for causing the third selection means to select the identification value.

By taking such a measure, the search for the condition value to be notified from the condition value included in the condition value-identification value table information is performed by first selecting the recently selected identification value held in the cache means. Is performed from the condition values corresponding to. Then, only when the corresponding condition value cannot be detected from the cache means, the condition value-identification value table information is searched for the condition value. Therefore, if it is necessary to frequently notify the same condition value, the condition value can be detected from the cache means with a high probability, and the identification value can be selected by searching only the cache means. The amount can be reduced.

In order to achieve the above object, a fourth aspect of the present invention is a numerical value indicating a predetermined communication condition when performing communication through a predetermined communication network, for example, C defined by 3GPP.
In order to select an identification value such as TFCI defined by 3GPP for notifying the communication network of the condition value such as TFC, the communication network is shown showing a correspondence relationship between the condition value and the identification value. Condition value notified from the condition value-condition value table information obtained by rearranging the condition values shown in the identification value table information in an order according to their size, and each condition value in the condition value table information. Table division means for creating identification value table information indicating the identification value associated with the condition value indicated in the corresponding area, and the condition value to be notified to the communication network. And a first search means for searching the condition value table information by a bisection method, and the first search means corresponding to an area where the condition value is detected in the condition value table information by the first search means. The first selecting means for selecting the identification value shown in the area of the different value table information as the identification value to be notified to the communication network, and the identification values selected in the past are set to have the same value in order from the newest selection timing. Corresponding to a cache unit that holds a predetermined number without including it, and holds a condition value corresponding to each identification value in association with each of these identification values, and a condition value to be notified to the communication network. Second selecting means for selecting an identification value based on the condition value-identification value table information, and second searching means for searching for a condition value to be notified to the communication network from the condition values held in the cache means. And an identification value to be notified to the communication network of the identification value held in the cache means in association with the condition value detected by the search means in the cache means. In the case of selecting the third selecting means for selecting and the identification value corresponding to the condition value to be notified to the communication network, if the data amount of the condition value-identification value table information is equal to or less than a predetermined amount, In the first selecting means, or otherwise, first, the communication network is searched for the condition value to be notified, the second searching means is searched for the condition value, and the second searching means is used to search for the condition value. Selection control means for causing the second selection means to select the identification value, and when the second search means detects the condition value, the selection control means causes the third selection means to select the identification value. Equipped with.

If the data amount of the condition value-discrimination value table information is equal to or less than the predetermined amount by taking such means, the condition value table and the discrimination value table are created and then the condition value-discrimination value is identified. The search for the condition value to be notified from the condition values included in the value table information is performed by the dichotomy from the condition value table in which the condition values are arranged in order of size.
It is performed without collating with all the condition values included in the condition value-identification value table information. On the other hand, if the data amount of the condition value-identification value table information is larger than the predetermined amount, the recently selected identification value and the corresponding condition value are held in the cache means, and the condition value-identification value table information is stored. The condition value to be notified is retrieved from the condition values included in the first condition value among the condition values corresponding to the recently selected identification value held in the cache means. Therefore, when the memory capacity is limited, the processing amount required for the conditional value search can be reduced by the dichotomy method as much as possible. If the dichotomy method cannot be used, the cache value can be used for the conditional value search. It is possible to reduce the amount of processing required.

Further, in order to achieve the above object, the fifth aspect of the present invention is the selection control means according to the third aspect of the invention and the fourth aspect of the invention, in which the number of identification values included in the condition value-identification value table information is When the number is equal to or smaller than the predetermined number, the second selecting means is always allowed to select the identification value.

When the number of identification values included in the condition value-identification value table information is larger than the predetermined number by taking such means, by using the cache as in the third invention, or As in the fourth aspect of the invention, it is carried out by the dichotomy or the use of the cache, but when the number of identification values included in the condition value-identification value table information remains below a predetermined number, the condition value-identification value table information Search for the condition value to be notified from the condition values included in
It is performed by a simple search from the identification value table information.
Therefore, when the number of identification values is small, the time and effort for creating the condition value table and the identification value table and the time and effort for managing the cache means are eliminated, and the total processing amount can be reduced.

In order to achieve the above object, a sixth aspect of the present invention has a new timing for selecting the condition value held in the cache means for the second search means in the third and fourth aspects. The search is performed by sequentially comparing with the condition value to be notified to the communication network.

By taking such means, if the same condition value should be frequently notified, the condition value is detected only by collating with a part of the condition values held in the cache means. It is possible to further reduce the number of collations, thereby further reducing the processing amount required for the condition value search.

[0030]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a CDMA having a CDMA signal processing unit configured by applying the identification value selecting apparatus according to the present invention.
It is a functional block diagram which shows the structure of a mobile communication terminal.

As shown in this figure, the CDMA of this embodiment
The mobile communication terminal includes an antenna 1, a radio section 2, a CDMA signal processing section 3, a compression / expansion processing section 4, a PCM code processing section 5, a call section 6, a user interface section 7, a storage section 8, a timing circuit 9 and a control section 10. have. The wireless unit 2 further includes an antenna duplexer (DUP) 21, a receiving circuit (R).
X) 22, a frequency synthesizer (SYN) 23, and a transmission circuit (TX) 24. The CDMA signal processing unit 3 further includes a reception processing unit 31 and a transmission processing unit 32. The call unit 6 further includes a reception amplifier 61 and a speaker 6
2. It has a microphone 63 and a transmission amplifier 64.
The user interface unit 7 further includes an input unit 71 and a display unit 72.

A radio signal transmitted from a base station (not shown) is received by the antenna 1 and then input to the radio unit 2. In the wireless unit 2, the wireless signal is transmitted to the antenna duplexer 21.
Is input to the receiving circuit 22 via the, and is mixed with the receiving local oscillation signal output from the frequency synthesizer 23 in the receiving circuit 22 and frequency-converted into an intermediate frequency signal. The frequency of the reception local oscillation signal generated from the frequency synthesizer 23 is set by the control signal output from the control unit 10.

The received intermediate frequency signal is input to the reception processing section 31 of the CDMA signal processing section 3. In the reception processing unit 31, the reception intermediate frequency signal is first despread with the spreading code assigned to the reception channel, and then, for example, Q
Quadrature demodulation corresponding to the PSK (Quadrature Phase Shift Keying) modulation method is performed, and thereby, it is converted into demodulation data of a predetermined format according to the data rate. Then, the converted demodulated data is input to the compression / expansion processing unit 4.

The compression / expansion processing unit 4 performs expansion processing on the demodulated data output from the CDMA signal processing unit 3 according to the received data rate notified from the control unit 10, and then uses Viterbi decoding or the like. The received decoding data and error correction decoding processing are performed to reproduce the baseband received voice data or the received packet data. Then, the received voice data is output to the PCM code processing unit 5, and the received packet data such as electronic mail is output to the control unit 10.

The PCM code processing unit 5 includes a compression / decompression processing unit 4
The received voice digital data output from PCM is PCM-decoded to output an analog reception signal. The analog reception signal is amplified by the reception amplifier 61 of the communication unit 6 and then output from the speaker 62 in a loud voice.

On the other hand, the speaker's input voice signal input to the microphone 63 of the communication section 6 is amplified to a proper level by the transmission amplifier 64 and then given to the PCM code processing section 5. Then, the input audio signal is subjected to PCM encoding processing by the PCM code processing unit 5, and is input to the compression / decompression processing unit 4 as transmission audio data. In addition, packet data such as an electronic mail created by the control unit 10 is
The data is input from the control unit 10 to the compression / decompression processing unit 4.

The compression / expansion processing unit 4 includes a PCM code processing unit 5.
The input voice component is separated into three types of transmission voice data of CLASS A, CLASS B, and CLASS C from the transmission voice data output from the device according to their importance. Then, the compression / decompression processing unit 4
The amount of energy of each transmitted voice data is detected, and each data rate is determined based on this detection result. Then, each of the transmission voice data is converted into a signal having a format corresponding to the data rate by AMR (Adaptive Multi Rate).
Then, the data is compressed by, and subjected to error correction coding processing such as convolutional coding, and then output to the CDMA signal processing unit 3. On the other hand, when transmitting packet data, for example, the transmission packet data output from the control unit 10
CDM with error correction coding processing by Turbo coding
Output to the A signal processing unit 3.

The transmission processing section 32 of the CDMA signal processing section 3
Is to multiplex the transmission data of various transmission channels individually given from the compression / expansion processing unit 4. Further, a carrier signal is QPSK-modulated by the multiplexed transmission data, and the modulated carrier signal is subjected to spread spectrum processing using a PN code assigned to each transmission channel. Then, the spread-coded transmission signal is output to the transmission circuit 24 of the radio unit 2.

The transmission circuit 24 synthesizes the spread-coded transmission signal with the transmission local oscillation signal generated from the frequency synthesizer 23 and frequency-converts it into a radio frequency signal. Then, the transmission circuit 24 high-frequency-amplifies only the effective portion of the radio frequency signal based on the transmission data rate notified by the control unit 10, and outputs it as a transmission radio frequency signal. The transmission radio frequency signal output from the transmission circuit 24 is supplied to the antenna 1 via the antenna duplexer 21 and transmitted from the antenna 1 to the connected base station.

The input section 71 of the user interface section 7 is provided with a key group such as a dial key, a call key, a power key, an end key, a volume control key, and a mode designation key. Then, the input unit 71 inputs a user instruction by pressing these keys. In addition, the display 72 has an LC
A D display and an LED lamp are provided. The LCD display displays the telephone number of the terminal of the communication partner, the operating state of the terminal itself, and transmitted / received mails. LED
The lamp is used to display the discharge state of the battery (not shown).

The storage unit 8 is composed of, for example, a flash memory, and stores and holds various data such as various setting information, received mail data and image data, or mail data created by this apparatus such as image data. To do.

The timing circuit 9 generates a reference clock of a predetermined speed and supplies this reference clock to the control unit 10 and other circuit units in the terminal which require an operation clock.

The control unit 10 is mainly composed of a processor, for example, and realizes an operation as a CDMA mobile communication terminal by performing control processing of each unit by software processing. In addition, the control unit 10 also performs data processing for realizing an e-mail transmission / reception function and a browser function for Internet access.

By the way, the transmission processing section 32 of the CDMA signal processing section 3 has a configuration shown in more detail in FIG. 2, the same parts as those in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in this figure, the transmission processing unit 32 has an interleaver 321, a modulation processing unit 322, a TFCI selection processing unit 323, and a memory unit 324.

Interleaver 321 and modulation processor 32
Reference numeral 2 is a portion that performs the above-described processing relating to transmission data. That is, the transmission data of various transmission channels are multiplexed by being interleaved by the interleaver 321. Then, in the modulation processing unit 322, the carrier signal is QPSK-modulated by the multiplexed transmission data, and the spread carrier processing is performed on the modulated carrier signal using the PN code assigned to each transmission channel. .

The TFCI selection processing section 323 is mainly composed of a processor, for example, and performs a TFCI selection processing as an identification value by firmware processing. The TFCI selection processing unit 323 is notified from the compression / expansion processing unit 4 of the individual transport block size of the transmission data of each transmission channel for TFCI selection. The TFCI selection processing unit 323 then selects the selected T
The FCI is inserted at a predetermined position of the TFCI insertion in the transmission data output from the interleaver 321.

The processing means realized by the TFCI selection processing section 323 by the firmware processing includes CTFC calculating means 323a, table dividing means 323b, first searching means 323c, first selecting means 323d, second selecting means 32.
3e, a second search means 323f, a third selection means 323g and a selection control means 323h.

In this embodiment, the first, second and third modes are provided as the TFCI selection modes, and the second selection means 323e selects the TFCI in the first mode by the table division means 323b and the first search. Means 323c and first
The selecting means 323d realizes the TFCI selection in the second mode, and the second selecting means 323e, the second searching means 323f and the third selecting means 323g realize the TFCI selection in the third mode.

The CTFC calculating means 323a calculates the CTFC as a condition value in accordance with the 3GPP regulations based on the transport block size of each transmission channel notified from the compression / expansion processing unit 4.

The table dividing means 323b divides the TFCI-CTFC table notified from the base station into two data tables, a TFCI table and a CTFC table.

The first searching means 323c searches the CTFC table for the CTFC calculated by the CTFC calculating means 323a.

The first selecting means 323d is the first searching means 3
The value existing at the position of the TFCI table corresponding to the position in the CTFC table where the corresponding CTFC is detected by 23c is selected as the TFCI.

The second selecting means 323e is a TFCI corresponding to the CTFC calculated by the CTFC calculating means 323a.
From the TFCI-CTFC table.

The second searching means 323f stores the CTFC calculated by the CTFC calculating means 323a in the memory unit 324.
Search from the cache table created in.

The third selecting means 323g is the second searching means 3
The TFCI registered in the cache table is selected in association with the CTFC detected by 23f.

Then, the selection control means 323h sets the TFCI selection mode to the first, second and third according to a predetermined condition.
One of the modes is set, and the processing means is operated according to the TFCI selection mode.

The memory unit 324 is configured by using, for example, a DRAM, and the TFCI selection processing unit 323 uses the TFCI.
It is used to store various kinds of information necessary for performing processing for selection. Then, in the storage area of the memory unit 324, a first table memory 324a, a second table memory 324b, a cache memory 324c as a cache unit, a registration number memory 324d, and a pointer memory 324e are arbitrarily set.

Here, the first table memory 324a is
It is used to store the FCI-CTFC table and the TFCI table.

The second table memory 324b is a CTFC.
Used to store tables.

The cache memory 324c is used to store a cache table.

The registration number memory 324d is used to store the number of registered CTFCs in the cache table.

The pointer memory 324e is used to store the start pointer indicating the position of the most recently registered CTFC in the cache table.

Next, the operation of the CDMA mobile communication terminal configured as described above will be described. Note that well-known operations in the CDMA mobile communication terminal such as voice call, e-mail transmission / reception, communication operation such as internet access communication, etc. are performed in the same manner as in the existing CDMA mobile communication terminal, and therefore detailed description thereof is omitted. And here is TFCI
The operation involved in the selection of will be described in detail.

First, when multi-call communication is started, the TFCI selection processing section 323 starts selection control processing as shown in FIG.

In this selection control process, the TFCI selection processing unit 323 first sets the TFCI-CTFC table notified by the base station and received by the control unit 10 to the control unit 1.
It is acquired from 0 (step ST1).

The TFCI-CTFC table obtained here is stored in the first table memory 324a.
In the first table memory 324a, a large number (for example, 102
4) address areas are secured, and one CTFC value is stored in each of these address areas. Further, when the relative addresses in the first table memory 324a are represented as 0, 1, 2, ..., Each CTFC is matched so that the address of the address area in which the CTFC is stored and the TFCI corresponding to the CTFC match. Are stored in the first table memory 324a. That is, in the example of FIG.
There are 1024 TFCIs of “0” to “1023”, and a CTF of “15” for a TFCI of “0”.
CTFC that C is "9" for TFCI that is "1"
TFCI-CTF allocated in such a manner
First table memory 3 when C table is stored
The state of 24a is shown. That is, in FIG. 4, the address is shown as a logical address in the first table memory 324a, and is different from the physical address in the memory unit 324.

Next, the TFCI selection processing unit 323 determines in advance the number of addresses used for storing the CTFC in the first table memory 324a, that is, the number of TFCIs set in the TFCI-CTFC table. It is confirmed whether or not it is less than or equal to the number (for example, "64") (step ST2). If it is confirmed here that the number of addresses is less than or equal to the specified number, the TFCI selection processing unit 3
23 sets the TFCI selection mode to the first mode (step ST3). That is, when the number of TFCIs set in the TFCI-CTFC table is small, the first mode is used.

On the other hand, if it is confirmed in step ST2 that the number of addresses is larger than the specified number, TFCI
The selection processing unit 323 determines the size of the memory area used as the first table memory 324a, that is, TFCI.
-The amount of CTFC data included in the CTFC table is
It is confirmed whether or not the amount is below a predetermined amount (step ST4). It should be noted that the above specified amount is the first table memory 324a and the second table memory 324b.
It is set to about 1/2 of the memory size. If the CTFC data amount is less than or equal to the specified amount, the TFCI selection processing unit 323 determines that the TFC
Set the I selection mode to the second mode (step ST
5). That is, if a memory area having the same size as the current first table memory 324a can be allocated to the second table memory 324b, the TFCI selection mode is set to the second mode. On the other hand, CT
If the FC data amount is larger than the specified amount, the TFCI selection processing unit 323 sets the TFCI selection mode to the third mode (step ST6). That is, if it is impossible to allocate the memory area of the same size as the current first table memory 324a to the second table memory 324b, the TFCI selection mode is set to the third mode.

In this way, step ST3, step ST
If the TFCI selection mode is set in any one of step 5 and step ST6, the TFCI selection processing unit 323 subsequently executes the TFCI selection processing according to the set TFCI selection mode as described later (step ST7). When the TFCI selection processing is completed, the TFCI selection processing unit 323 waits for 10 ms from the previous execution of the TFCI selection processing in step ST7 or until the communication is completed (steps ST8 and ST9). Then, the TFCI selection processing unit 323 repeatedly executes the TFCI selection processing of step ST7 every time 10 ms elapses until it can determine that the communication has ended. The TFCI selection processing unit 323 ends the selection control processing of this time upon confirming that the communication is completed in step ST9.

By the way, in the TFCI selection processing of step ST7, the TFCI selection processing section 323 performs the following processing according to the set mode.

(When the first mode is set) When the first mode is set as the TFCI selection mode, the TFCI selection processing section 323 executes the TFCI selection processing as shown in FIG. 5 in step ST7 in FIG.

That is, the TFCI when the first mode is set
In the selection process, the TFCI selection processing unit 323 first calculates the CTFC according to the 3GPP standard based on the transport block size of each transmission channel notified from the compression / expansion processing unit 4, and substitutes that value into the variable Vc ( Step ST11).

Then, the TFCI selection processing section 323 substitutes "0" into the variable ADD (step ST12). Then, the TFCI selection processing unit 323 uses the first table memory 3
The value stored in the address area of the address ADD in 24a is substituted for the variable Vm (step ST13), and then it is confirmed whether or not the variable Vm and the variable Vc match (step ST14). If the variable Vm and the variable Vc do not match here, the TFCI selection processing unit 323 updates the value of the variable ADD by one larger than the value so far (step ST15), and then step ST13. And the process of step ST14 is repeated.

If it is confirmed in step ST14 that the variable Vm and the variable Vc match, the TFCI selection processing section 323 determines the value of the variable ADD at that time as TFCI.
(Step ST16), the TFCI selection process of this time is ended.

That is, in the first mode, the calculated CTFC is the CT included in the TFCI-CTFC table.
The same value is searched by sequentially collating each FC, and the value corresponding to the position where the corresponding CTFC can be detected is selected as the TFCI. Therefore, in the worst case, it is necessary to compare the calculated CTFC with all the CTFCs included in the TFCI-CTFC table, but the first mode is only when the number of TFCIs, that is, the number of CTFCs is less than or equal to the specified number. Since it is set, the collation work below the specified number is sufficient.

(When the second mode is set) When the second mode is set as the TFCI selection mode, the TFCI selection processing section 323 executes the TFCI selection processing as shown in FIG. 6 in step ST7 in FIG.

That is, the TFCI when this second mode is set
In the selection process, the TFCI selection processing unit 323 first sets T
A CTFC table and a TFCI table are divided and created from the FCI-CTFC table (step ST2).
1). Here, in the CTFC table, CTFCs are sorted in ascending order of their values, and are stored in the respective address areas of the second table memory 324b in order as shown in FIG. 7A. In the TFCI table, the TFCIs are sorted in ascending order of the corresponding CTFC values,
For example, it is stored in each address area of the first table memory 324a in order as shown in FIG. 7B. Note that FIG.
7A and 7B, the addresses are the first table memory 324a and the second table memory 324, respectively.
The logical address in b is shown. Thus, the corresponding TFCI and CTFC are stored in the address areas of the same logical address in the first table memory 324a and the second table memory 324b.

Next, the TFCI selection processing unit 323 calculates the CTFC according to the 3GPP standard based on the transport block size of each transmission channel notified from the compression / expansion processing unit 4, and substitutes that value into the variable Vc. (Step ST22). In addition, the TFCI selection processing unit 323
Substitute the total number of CTFCs included in the CTFC table for the variable N (step ST23), and set N / for the variable ADD.
The value obtained in 2 is substituted (step ST24).

Then, the TFCI selection processing section 323 uses the second
The value stored in the address area of the address ADD in the table memory 324b, that is, in the CTFC table is substituted into the variable Vm (step ST25), and the variable Vm and the variable Vc are compared therewith (step ST14). If the variable Vm and the variable Vc do not match here, the TFCI selection processing unit 323 calculates the value of the variable ADD by the expression [(N-ADD) / 2] if the variable Vm is smaller.
To the value obtained by (but rounding off or rounding down after the decimal point) (step ST27), and if the variable Vm is larger, the value of the variable ADD is calculated by the formula [ADD /
2] (but rounded down or rounded down after the decimal point) (step ST28), respectively, and then step ST25 and step ST26.
The process of is repeated. That is, in the second mode, the calculated CTFC is searched from the CTFC table by the bisection method.

If it is confirmed in step ST26 that the variable Vm and the variable Vc match, the TFCI selection processing unit 323 stores the address in the first table memory 324a, that is, in the address area of the address ADD in the TFCI table. The selected value is selected as the TFCI (step ST29), and the current TFCI selection process is ended.

Thus, for example, if the second largest CTFC value "5538" in the TFCI-CTFC table containing 1024 CTFCs is calculated, as shown in FIG. 8, 511, 767, 895 ... Address areas that are discretely distributed are searched for. Then, at the 10th time, in the area of the address 1022, "553
"8" is detected, and "1023" stored in the same address area of the TFCI table is selected as the TFCI.

As described above, in the second mode, since the CTFC is searched by the bisection method, it is possible to suppress the number of collations in this search to log ₂ N times at the maximum. That is, when N = 1024, the maximum number of collations is 10, and the average is 10. In collation by a simple method such as in the first mode, when N = 1024, the number of collations is 1024 at maximum and 512 on average, so the number of collations is greatly reduced.

By the way, the specified number serving as a threshold value for selecting the first mode is, for example, "64." At this time, the maximum value of N when the first mode is selected is 64.
Therefore, the number of collations in the first mode when N = 64 is 64 at the maximum and 32 on average, which is larger than 6 in the second mode. However, in the second mode, the preparation process of the TFCI table and the CTFC table is necessary as the preparation process. Therefore, even if the number of collations increases, if the N is small to some extent, the first mode may be more efficient. . Therefore, the amount of processing required for such preparation processing and the TFCI selection processing unit 3
In consideration of the processing capacity of 23, it is preferable to set the specified number so that a mode with higher efficiency is selected.

(When the third mode is set) When the third mode is set as the TFCI selection mode, the TFCI selection processing section 323 performs the TFCI selection processing as shown in FIGS. 9 and 10 at step ST7 in FIG. Run.

That is, the TFCI when the third mode is set
In the selection process, the TFCI selection processing unit 323 first calculates the CTFC according to the 3GPP standard based on the transport block size of each transmission channel notified from the compression / expansion processing unit 4, and substitutes that value into the variable Vc ( Step ST31).

Subsequently, the TFCI selection processing unit 323 confirms whether or not this time's TFCI selection processing is the first time (step ST32), and only when it is the first time, the cache memory 324c is registered in the memory unit 324. Number memory 32
4d and the pointer memory 324e are set, the cache memory 324c and the registration number memory 324d are cleared to 0, and the pointer memory 324e is set to 1 (step ST33). At this time, the second table memory 324b is not set in the memory unit 324.

Subsequently, the TFCI selection processing section 323 substitutes "0" into the variable ADD (step ST34). Then, the TFCI selection processing unit 323 uses the first table memory 3
The value stored in the address area of the address ADD in 24a is substituted into the variable Vm (step ST35), and then it is confirmed whether or not the variable Vm and the variable Vc match (step ST36). If the variable Vm and the variable Vc do not match here, the TFCI selection processing unit 323 updates the value of the variable ADD by one larger than the value up to that point (step ST37), and then step ST35. And the process of step ST36 is repeated.

If it is confirmed in step ST36 that the variable Vm and the variable Vc match, the TFCI selection processing section 323 determines the value of the variable ADD at that time as TFCI.
(Step ST38).

That is, in the above-mentioned routines of steps ST34 to ST38, C from the TFI-CTFC table in the simple method is set as in the case of setting the first mode.
The TFCI is selected by searching the TFC.

When the TFCI is searched by the simple method as described above, the TFCI selection processing unit 323 is executed.
Writes the value of the TFCI selected this time and the value of the variable Vm, that is, the value of the CTFC corresponding to the selected TFCI in the cache memory 324c (step ST39).

Here, in the cache memory 324c, an address area for 20 words is secured as shown in FIG. 11, for example. An address area having an even logical address in the cache memory 324c corresponds to the TFCI registration area, and an address area having an odd logical address in the cache memory 324c corresponds to the TFCI registered in the immediately preceding address area. It is assigned to the registration area of CTFC. Then, in step ST39, the TFCI selection processing unit 323 sets the TFCI in the address area immediately before the address area in which the most recently registered CTFC among the already registered ones is stored, and the CTFC in the next address area. Are stored respectively. If you have already registered, the most recently registered CTFC
The logical address of the address area where is stored is "1"
, The logical address is "1".
TFCI and C in the 8 ”and“ 19 ”address areas
Store each TFC. If the TFCI and CTFC are already stored in the corresponding address area, they are overwritten. That is, already 10 sets of TF
If the CI and CTFC are registered, the newest TFCI and CTFC are registered by overwriting the oldest registered TFCI and CTFC.

The address area in which the TFCI and CTFC should be newly registered is determined by referring to the registration number stored in the registration number memory 324d and the start pointer stored in the pointer memory 324e. The number of registrations stored in the number-of-registrations memory 324d is equal to that of the cache memory 3
24c shows the number of registered TFCIs. Further, the start pointer indicates the address of the address area in which the most recently registered TFCI among those already registered is stored. Therefore, if the TFCI and CTFC are newly registered in step ST39, the TFCI selection processing unit 323 then updates the start pointer to indicate the storage area of the newly registered TFCI, and
If the number of registrations so far has not reached "10", the number of registrations is incremented by 1 (step ST40). And T
With this, the FCI selection processing unit 323 receives this TFC.
The I selection process ends.

By the way, TFC in the third mode setting state
When the I selection process is the second time or later, the TFCI selection processing unit 323 confirms in step ST32 that it is not the first time. Then, in this case, the TFCI selection processing unit 323 sets “0” to the variable M (step ST
41). Further, the TFCI selection processing unit 323 uses the variable ADD.
The value of the start pointer stored in the pointer memory 324e is substituted into (step ST42).

Then, the TFCI selection processing section 323 substitutes the value stored in the address area of the address ADD in the cache memory 324c into the variable Vm (step ST4).
3) Then, it is confirmed whether or not the variable Vm and the variable Vc match (step ST44). If here the variable Vm
And the variable Vc do not match, the TFCI selection processing unit 323 updates the variable M by one (step ST45), and the updated value of the variable M is the registered number memory 3
It is confirmed whether or not the number of registrations stored in 24d matches (step ST46).

If it is confirmed here that the variable M and the number of registrations do not match, the TFCI selection processing unit 323
The value of the variable ADD is updated to a value corresponding to the address area in which the newly registered CTFC is stored (step ST47). That is, basically, the variable ADD is updated to a value larger by two, but when the value becomes larger than 19, "1" is set to the variable ADD.

Subsequently, the TFCI selection processing section 323 confirms whether or not the updated variable ADD matches the start pointer (step ST48). And here the variable AD
If D does not match the start pointer, the TFCI selection processing section 323 repeats the processing from step ST43.

In this way, the CTFC calculated in step ST31 is retrieved from the cache memory 324c, but the CFC calculated in step ST31 is included in all the CTFCs registered in the cache memory 324c.
If the TFC is not included, the variable M reaches the registration number in step ST45, and the TFCI selection processing unit 323 is performed.
Will confirm this in step ST46.
Therefore, in this case, the TFCI selection processing section 323 performs the above-mentioned steps ST34 to ST40.

However, the cache memory 324c
If the CTFC calculated in step ST31 exists among the CTFCs registered in step ST31, the TFCI selection processing unit 3
23 confirms this in step ST44. Therefore, in this case, the TFCI selection processing unit 323 selects the value stored in the address area of the logical address ADD-1 in the cache memory 324c as the TFCI (step ST48), and this is used as the TFCI for this time.
The CI selection process ends.

As described above, in the third mode, first, the TFCI based on the registration data in the cache memory 324c.
Is selected. Therefore, if the recently selected TFCI is selected again as a comparison hand, it is possible to perform the selection by searching the cache memory 324c, and the number of collations is 10 at maximum and 5 on average. Especially TF
The CI has a high probability that the same value is repeatedly selected, so that the cache hit rate is high, and in many cases, the number of times of matching can be reduced as described above. In particular, in the present embodiment, since the start pointer is provided and collation is performed in order from the newly registered one, the same TF is used.
It is possible to further reduce the number of collations under the situation where CIs are continuously searched.

In the third mode, it is possible that the number of searches can be reduced as compared with the second mode as described above, as long as a cache hit occurs. In the third mode, the second
The used capacity of the memory unit 324 is smaller than that in the mode. That is, in the second mode, the first table memory 324a and the second table memory 324b must each be assigned a size comparable to the data amount of the TFCI-CTFC table, that is, the TFCI-CT.
It requires twice as much storage capacity as the data amount of the FC table. That is, the TFCI-CTFC table is 1024 Wo.
If it is the data amount of rd, it is 20 in the second mode.
It is necessary to secure a storage capacity of 48 words in the memory unit 324. On the other hand, in the third mode, TF
The storage capacity for storing the CI-CTFC table may be secured in the first table memory, and then the storage capacity for the cache memory 324c, the registration number memory 324d and the pointer memory 324e may be secured. That is, assuming that the TFCI-CTFC table has a data amount of 1024 words, the cache memory 324c stores 20 words.
In order to secure the minutes, even if each of the registration number memory 324d and the pointer memory 324e secures one word, it suffices to secure the storage capacity of 1046 words, which is about 1/2.

However, if there is no cache hit, the TFCI must be selected by a simple method search for the entire TFCI-CTFC table, which is less stable than the second mode.

Therefore, when the data amount of the TFCI-CTFC table is equal to or less than the specified amount and the memory capacity of the memory unit 324 can be doubled, the second mode is preferentially set to ensure the stability. However, the third mode is set only when the data amount of the TFCI-CTFC table is large and the memory unit 324 cannot secure a sufficient storage capacity.

The present invention is not limited to the above embodiment. For example, in the above embodiment, the first mode,
Although the second mode and the third mode are selectively used, only one of the second mode and the third mode may always be used. Alternatively, one of the first mode and the second mode, the second mode and the third mode
Either one of the modes or the first mode and the third mode may be selectively used.

Further, in the above embodiment, the start pointer is provided in the third mode, and the collation is performed in the order from the newest to the collation. However, this is not performed, but the collation is performed in a fixed order. You may do it. By doing so, the efficiency of collation may be slightly lowered, but since it is not necessary to set the pointer memory 324e, the memory unit 324 can be made smaller in capacity.

Further, in the above embodiment, the update of the registered data in the cache memory 324c and the update of the start pointer in the third mode are performed in the cache memory 324c from the T memory.
It may be performed even when the FCI can be selected. That is, for example, the data in the cache memory 324c having the selected TFCI and CTFC as the latest information may be rearranged and the start pointer may be updated to point to the CTFC. By doing so, the cache memory 324c can be always made appropriate according to the latest selection situation, and the efficiency in the situation where the same TFCI is continuously selected can be further improved. It will be possible.

In the above embodiment, the present invention is applied to 3GPP.
Shows an example applied to a CDMA mobile communication terminal compliant with
CTFC and TFCI for condition value and identification value, respectively
However, it can be applied to a mobile communication terminal conforming to another standard, or can be applied to a wired communication terminal.

Besides, various modifications can be made without departing from the scope of the present invention.

[0110]

According to the first aspect of the present invention, the search for the condition value to be notified from the condition values included in the condition value-identification value table information is performed from the condition value table in which the condition values are arranged in order of size. The bisection method is performed without collating with all the condition values included in the condition value-discrimination value table information. Therefore, the processing amount required for the condition value search is reduced, and as a result, the efficiency is improved. It is possible to select the identification value in a short time.

According to the second aspect of the present invention, when the number of identification values included in the condition value-identification value table information is larger than a predetermined number, the condition value-identification value is the same as in the first aspect of the present invention. The search for the condition value to be notified from the condition values included in the table information is performed by the dichotomy method from the condition value table in which the condition values are arranged in the order of size. When the number remains below the predetermined number, the condition value-identification value table information is searched for the condition value to be notified by a simple search from the condition value-identification value table information. When the number of identification values is small, the effort to create the condition value table and the identification value table is saved, and the total processing amount is reduced. As a result, the identification values are efficiently selected in a short time. Can The ability.

Further, in the third aspect of the present invention, the retrieval of the condition value to be notified from the condition values included in the condition value-identification value table information is performed by first responding to the recently selected identification value held in the cache means. The condition value is searched from the condition value-identification value table information only when the corresponding condition value cannot be detected from the cache means. Therefore, the same condition value is frequently notified. If there is a situation that should be done, the condition value can be detected from the cache means with a high probability, and the identification value can be selected by searching only the cache means, so that the processing amount required for the condition value search can be reduced. Therefore, the identification value can be efficiently selected in a short time.

According to the fourth aspect of the present invention, if the data amount of the condition value-discrimination value table information is less than or equal to a predetermined amount, the condition value table and the discrimination value table are created and then the condition value-discrimination value table is created. All the condition values included in the information of the condition value-identification value table are searched for the condition value to be notified from the condition value included in the information by the bisection method from the condition value table in which the condition values are arranged in order of size. Without performing the collation of. On the other hand, if the data amount of the condition value-identification value table information is larger than the predetermined amount, the recently selected identification value and the corresponding condition value are held in the cache means, and the condition value-identification value is held. The search for the condition value to be notified from the condition values included in the table information is first performed from the condition values corresponding to the recently selected identification value held in the cache means. Therefore, if the memory capacity is limited, etc.
The division method reduces the amount of processing required for conditional value search,
When the dichotomy cannot be used, the cache can be used to reduce the processing amount required for the condition value search, and as a result, the identification value can be efficiently selected in a short time.

According to the fifth aspect of the present invention, when the number of identification values included in the condition value-identification value table information is larger than a predetermined number, the cache is used as in the third aspect of the invention, or As in the fourth aspect of the invention, the dichotomy or the cache is used. However, when the number of identification values included in the condition value-identification value table information is less than a predetermined number, the condition value-identification value table information is added. Since the search for the condition value to be notified from the included condition values is performed by a simple search from the condition value-identification value table information, when the number of identification values is small, the condition value table and the identification value table It is possible to reduce the total processing amount by omitting the time and effort for creating the cache and the management of the cache means, and as a result, it is possible to efficiently select the identification value in a short time.

According to the sixth aspect of the present invention, it is necessary to compare the condition values held in the cache means with the condition values to be notified to the communication network in order from the newest selection timing. , In the situation where the same condition value should be frequently notified, the condition value can be detected only by matching with some of the condition values held in the cache means. The amount of processing required for the search can be further reduced.

[Brief description of drawings]

FIG. 1 is a CDMA including a CDMA signal processing unit configured by applying an identification value selection device according to an embodiment of the present invention.
The functional block diagram which shows the structure of a mobile communication terminal.

FIG. 2 is a functional block diagram showing a detailed configuration of a transmission processing unit 32 in FIG.

FIG. 3 is a flowchart showing a processing procedure for selection control processing by a TFCI selection processing unit 323 in FIG.

4 is a TF in a first table memory 324a in FIG.
The figure which shows an example of the storage condition of a CI-CTFC table.

5 is a first diagram of a TFCI selection processing unit 323 shown in FIG.
6 is a flowchart showing a processing procedure for TFCI selection processing when setting a mode.

FIG. 6 is a second diagram by the TFCI selection processing unit 323 in FIG.
6 is a flowchart showing a processing procedure for TFCI selection processing when setting a mode.

FIG. 7 is a diagram showing an example of a storage state of a CTFC table and a TFCI table in a first table memory 324a and a second table memory 324b in FIG.

FIG. 8 is a diagram showing a specific example of TFCI selection processing in a second mode.

FIG. 9 is a third block diagram of the TFCI selection processing unit 323 shown in FIG.
6 is a flowchart (part 1) showing a processing procedure for TFCI selection processing when setting a mode.

10 is a flowchart (No. 2) showing the processing procedure in the TFCI selection processing when the third mode is set by the TFCI selection processing unit 323 in FIG.

11 is a diagram showing a state of registration in a cache memory 324c in FIG.

FIG. 12 is a diagram showing the types of TrCH specified by 3GPP.

FIG. 13 is a diagram showing a TrCH type TFl table UL.

FIG. 14 is a diagram showing an example of a TFCI-CTFC table.

[Explanation of symbols]

1 ... antenna 2 ... Wireless section 3 ... CDMA signal processing unit 4 ... Compression / decompression processing unit 5 ... PCM code processing unit 6 ... call section 7 ... User interface section 8 ... Storage unit 9 ... Timing circuit 10 ... Control unit 31 ... Reception processing unit 32 ... Transmission processing unit 321 ... Interleaver 322 ... Modulation processing unit 323 ... TFCI selection processing unit 323a ... CTFC calculation means 323b ... Table dividing means 323c ... First search means 323d ... First selecting means 323e ... Second selection means 323f ... Second search means 323g ... Third selection means 323h ... Selection control means 324 ... Memory unit 324a ... Table memory 324b ... table memory 324c ... Cache memory 324d ... Registration number memory 324e ... Pointer memory

Claims (14)

[Claims] 1. A condition value, which is a numerical value indicating a predetermined communication condition in performing communication via a predetermined communication network, is provided to the communication network by an identification value which is a numerical value determined for the condition value. In an identification value selection device used for a communication device for notifying and selecting the identification value, a correspondence relation between the condition value and the identification value is shown, and the condition value-identification value table information notified from the communication network is shown. The condition value table information obtained by rearranging the above-mentioned condition values in the order according to the size thereof, and the area corresponding to the area where each condition value is located in the condition value table information. Table division means for creating identification value table information indicating an identification value associated with the indicated condition value, and a condition value to be notified to the communication network is detected from the condition value table information by a bisection method. The first search means, and the identification value shown in the area of the identification value table information corresponding to the area where the condition value is detected in the condition value table information by the first search means to the communication network. An identification value selecting device, comprising: a first selecting means for selecting an identification value to be notified. 2. A second selecting means for selecting an identification value corresponding to a condition value to be notified to the communication network based on the condition value-identification value table information, and a condition value to be notified to the communication network. The identification value to be selected is selected by the second selecting means when the number of identification values included in the condition value-identification value table information is less than or equal to a predetermined number, and by the first selecting means otherwise. The identification value selection device according to claim 1, further comprising selection control means for enabling the selection value selection device. 3. A condition value, which is a numerical value indicating a predetermined communication condition in performing communication through a predetermined communication network, is provided to the communication network by an identification value which is a numerical value determined for the condition value. In the identification value selection device used for the communication device for notifying and selecting the identification value, the identification values selected in the past are held in a predetermined number in order from the newest selection timing without including the same value, A cache unit that holds a condition value corresponding to each identification value in association with each of these identification values, and an identification value corresponding to a condition value to be notified to the communication network, the condition value-identification value table information. Second selection based on
Selection means, second search means for searching for condition values to be notified to the communication network from among the condition values held in the cache means, and the condition values detected by the search means correspond to the cache means Third selecting means for selecting an identification value attached and held in the cache means as an identification value to be notified to the communication network, and an identification value corresponding to a condition value to be notified to the communication network are selected. In this case, first, the communication network is made to search for the condition value to be notified by the second searching means, and when the condition value cannot be detected by the second searching means. And a selection control means for causing the second selecting means and the third selecting means to select the identification value when the condition value can be detected by the second searching means. Identification value selecting device, characterized in that the. 4. A condition value, which is a numerical value indicating a predetermined communication condition in performing communication via a predetermined communication network, is provided to the communication network by an identification value which is a numerical value determined for the condition value. In an identification value selection device used for a communication device for notifying and selecting the identification value, a correspondence relation between the condition value and the identification value is shown, and the condition value-identification value table information notified from the communication network is shown. The condition value table information obtained by rearranging the above-mentioned condition values in the order according to the size thereof, and the area corresponding to the area where each condition value is located in the condition value table information. Table division means for creating identification value table information indicating an identification value associated with the indicated condition value, and a condition value to be notified to the communication network is detected from the condition value table information by a bisection method. The first search means, and the identification value shown in the area of the identification value table information corresponding to the area where the condition value is detected in the condition value table information by the first search means to the communication network. First selection means for selecting as the identification value to be notified, and a predetermined number of identification values selected in the past are stored in order from the newest selection timing without including the same value, and each of these identification values is retained. A cache unit that holds a condition value corresponding to each identification value in association with each other, and an identification value corresponding to the condition value to be notified to the communication network based on the condition value-identification value table information.
Selection means, second search means for searching for condition values to be notified to the communication network from among the condition values held in the cache means, and the condition values detected by the search means correspond to the cache means Third selecting means for selecting an identification value attached and held in the cache means as an identification value to be notified to the communication network, and an identification value corresponding to a condition value to be notified to the communication network are selected. In this case, if the data amount of the condition value-identification value table information is less than or equal to a predetermined amount, the first selecting means
Otherwise, first, the communication network is made to search for the condition value to be notified by the second search means, and the second search means fails to detect the condition value. And the selection control means for causing the third selection means to select the identification value when the condition value can be detected by the second search means. Characteristic identification value selection device. 5. The selection control means causes the second selection means to select the identification value whenever the number of identification values included in the condition value-identification value table information is less than or equal to a predetermined number. The identification value selection device according to claim 3 or 4, characterized in that. 6. The second search means performs a search by comparing the condition values held in the cache means with condition values to be notified to the communication network in order from the newest selection timing. The identification value selection device according to claim 3 or 4. 7. The condition value and the identification value are 3GPP (3rd Generation Partnership Project), respectively.
CTFC (Calculated Transport Format C
combination) and TFCI (Transport Format Combi)
nation indicator).
The identification value selection device according to any one of claims 3 and 4. 8. A condition value, which is a numerical value indicating a predetermined communication condition when performing communication via a predetermined communication network, is provided to the communication network by an identification value which is a numerical value determined for the condition value. In the communication device for notifying, the condition value indicated in the condition value-identification value table information indicating the correspondence between the condition value and the identification value and notified from the communication network is in the order according to the size. The condition value table information rearranged and the identification value associated with the condition value shown in the corresponding area are shown in the area corresponding to the area where each condition value is located in this condition value table information. Table dividing means for creating identification value table information; first searching means for searching the condition value table information by a dichotomy method for condition values to be notified to the communication network; and by the first searching means, First selecting means for selecting, as an identification value to be notified to the communication network, an identification value shown in an area of the identification value table information corresponding to an area in which the condition value is detected in the condition value table information. A communication device comprising: 9. Corresponding to a second selecting means for selecting an identification value corresponding to a condition value to be notified to the communication network based on the condition value-identification value table information, and a condition value to be notified to the communication network. The identification value to be selected is selected by the second selecting means when the number of identification values included in the condition value-identification value table information is less than or equal to a predetermined number, and by the first selecting means otherwise. 9. The communication device according to claim 8, further comprising selection control means for enabling the selection. 10. A condition value, which is a numerical value indicating a predetermined communication condition in performing communication through a predetermined communication network, is provided to the communication network by an identification value which is a numerical value determined for the condition value. In the communication device to be notified, a predetermined number of identification values selected in the past are held in order from the newest selection timing without including the same value, and each identification value is associated with each identification value. Second, a cache unit for holding the condition value, and an identification value corresponding to the condition value to be notified to the communication network are selected based on the condition value-identification value table information.
Selection means, second search means for searching for condition values to be notified to the communication network from among the condition values held in the cache means, and the condition values detected by the search means correspond to the cache means Third selecting means for selecting an identification value attached and held in the cache means as an identification value to be notified to the communication network, and an identification value corresponding to a condition value to be notified to the communication network are selected. In this case, first, the communication network is made to search for the condition value to be notified by the second searching means, and when the condition value cannot be detected by the second searching means. And a selection control means for causing the second selecting means and the third selecting means to select the identification value when the condition value can be detected by the second searching means. Communication apparatus characterized by the. 11. A condition value, which is a numerical value indicating a predetermined communication condition when performing communication through a predetermined communication network, is provided to the communication network by an identification value which is a numerical value determined for the condition value. In the communication device for notifying, the condition value indicated in the condition value-identification value table information indicating the correspondence between the condition value and the identification value and notified from the communication network is in the order according to the size. The condition value table information rearranged and the identification value associated with the condition value shown in the corresponding area are shown in the area corresponding to the area where each condition value is located in this condition value table information. Table dividing means for creating identification value table information; first searching means for searching the condition value table information by a dichotomy for condition values to be notified to the communication network; First selecting means for selecting, as an identification value to be notified to the communication network, an identification value shown in an area of the identification value table information corresponding to an area in which the condition value is detected in the condition value table information. , Hold a predetermined number of identification values selected in the past in order from the newest selection timing without including the same value, and hold the condition value corresponding to each identification value in association with each of these identification values Second, a cache unit to be stored and an identification value corresponding to a condition value to be notified to the communication network are selected based on the condition value-identification value table information.
Selection means, second search means for searching for condition values to be notified to the communication network from among the condition values held in the cache means, and the condition values detected by the search means correspond to the cache means Third selecting means for selecting an identification value attached and held in the cache means as an identification value to be notified to the communication network, and an identification value corresponding to a condition value to be notified to the communication network are selected. In this case, if the data amount of the condition value-identification value table information is less than or equal to a predetermined amount, the first selecting means
Otherwise, first, the communication network is made to search for the condition value to be notified by the second search means, and the second search means fails to detect the condition value. And the selection control means for causing the third selection means to select the identification value when the condition value can be detected by the second search means. Characterized communication device. 12. The selection control unit causes the second selection unit to select the identification value whenever the number of identification values included in the condition value-identification value table information is less than or equal to a predetermined number. Claim 10 or Claim 1 characterized in that
1. The communication device according to 1. 13. The second search means performs a search by comparing the condition values held in the cache means with condition values to be notified to the communication network in order from the newest selection timing. Claim 10 or Claim 1
1. The communication device according to 1. 14. 3GPP (3rd Generation Partnersh)
ip Project) based spread spectrum communication device, wherein the condition value and the identification value are
CTFC (Calculated Trans) defined by the 3GPP
port Format Combination and TFCI (Transport
12. The communication device according to claim 8, wherein the communication device is a Format Combination Indicator).