Method and device for adapting communication line in mobile communication system

FIELD: metering forward data transfer speed and power level in mobile communication systems.

SUBSTANCE: access terminal measures carrier-to-noise ratio of forward pilot-signal channel, evaluates forward data transfer speed by matching measured carrier-to-noise ratio with its reference value, sets up difference between measured carrier-to-noise ratio and its reference value as margin information, and transfers definite direct data transfer speed and margin information over reverse transmission channel. During reception of forward data transfer speed and margin information access network reduces transmission power level by power corresponding to margin information and executes forward data transfer at forward data transfer speed and reduced transmission power level.

EFFECT: reduced excess transmission power and noise, enhanced forward throughput of system.

42 cl, 10 dwg

 

The technical field to which the invention relates.

The present invention relates generally to a mobile communication system, and in particular to a device and method adaptation of the communication line in a mobile communication system mdcr (multiple access code division channels (CDMA).

The level of technology

In the mobile communication system using radio signals, the attenuation of the signal varies depending on the distance between the access network (AN) and an access terminal (AT) and shading. In addition, the radio channels used in the mobile communication system, experiencing a noticeable mutual interference between the signals and attenuation (fading). Therefore, the ratio of carrier to interference (called here for brevity, “N/a” (C/I)) subject to large changes depending on the radio conditions. To increase the bandwidth of a method of adapting the communication line by adjusting the data transfer rate according to channel conditions (or N/a). The data rate is determined depending on the coding rate and modulation mode. When N/a is high, to increase data transfer speeds are higher encoding speed and high-level modulation. But otherwise, when N/P is low, use lower speed low-level coding and modulation for reliably increase the t channel.

To transmit data, supporting the reliability of the channel in accordance with N/a receiver and a transmitter in a mobile communication system are as follows. The receiver predicts the change to the next channel on the basis of N/a to determine the speed of data transmission, and then transmits information about a specific data rate to the transmitter. The transmitter is then assigned to the data transmission rate in accordance with the data transfer rate requested by the receiver, and supports the power level is constantly on the reference level.

Change N/a and the destination of the data transfer rate will be described below with reference to the direct line of communication with high data rate (WSPD) (HDR), proposed 3GPP2 (second partnership project third generation), as an example. In the above description, the transmitter corresponds to the access network (AN), while the receiver corresponds to the access terminal (AT). Physical layer WSPD, based on the adaptation of the communication line, supports 13 of the transmission modes, which are determined by the combination of three modulation modes FMN (four-phase shift keying) (QPSK), FMN (vosmipolosnoy phase shift keying) (8PSK) and (shestnadtsatimesyachnyj phase shift keying) and 16QAM, the three velocity encoding in 1/4, 3/8 and 1/2 and the number of temporary interval is, which repeats the packet. The power level of the transmission system WSPD is the maximum power level.

Figure 1 illustrates a timing diagram of the transmit/receive forward and reverse links in the system WSPD. In figure 1 each of the forward and reverse packet includes 2048 elementary signals on a time interval. Further, each time interval includes one channel of the pilot signal at half time interval (1/2 time interval), and each channel pilot signal includes 96 of elementary signals. This channel pilot signal is typically transmitted at the same power as the channel graph. Therefore, the system SPD estimates N/a channel graph by measuring N/a channel pilot signal. That is, the receiver measures the value of N/P channel pilot signal and determines the data rate based on the measured values of H/P. the Receiver transmits information about a specific data rate to the transmitter. In the description of SPD information about the transfer rate of data sent to the transmitter, called “RTU (data rate)” (DRC). RTU is piped RTU and appears to be 4-bit symbol RTU.

Figure 2 illustrates a thinned channel sequence of the pilot signal, channel RTU and channel ISOP (speed indicator postback) RRI) for return line communication system WSPD. Here the channel ESOP is used to convey information about data transfer rate backward channel graph. Below with reference to figure 2 will give a description of the structure of each channel for the reverse link.

First will be described the process of building a character RTU transmitted over the channel RTU. This symbol RTU passed through the channel RTU is a block encoded using each code of the (8, 4, 4) biorthogonol code based on one-to-one according to the data rate. After that, the access terminal repeats 8-bit character RTU transmitted on the reverse link, once each bit. Further, the access terminal extends repeated symbol RTU using 8-bit Walsh code indicating the sector belongs to this access terminal. Advanced character RTU expands again using the 4-bit Walsh code, building character RTU, composed of only 512 elementary signals. This symbol RTU 512 elementary signals is repeated, so that each time interval includes 1024 elementary signal assigned to the channel RTU. Elementary signals RTU is divided into 16 time slots MBP (multiplexing time division channels (TDM) 64 elementary signal and transmitted together with the channel pilot signal and the channel ISOP on the basis of the ISI, as long as the ANO in figure 2. That is an elementary signals RTU are entered one by one, starting with the first time interval ISI. Symbol IOP is entered once in the second time interval ISI in the time interval of 2048 elementary signals. Further, the characters RTU entered in those time intervals MBP, which are not entered any characters, the USPD, creating one time interval.

Now will be described the process of determining the data transfer rate depending on N/a direct channel and the transfer process RTU via the backward channel in the system WSPD using the method of adaptation of the line.

System SPD supports multiple preset speeds of data, and each data rate has a unique encoding speed and a unique modulation mode. Further, the receiver includes a table N/a for storing a threshold N/a, meets the specific probability of packet error for each data rate. Therefore, the receiver measures the value of N/P channel pilot signal among the direct channels and compares the measured value N/a with thresholds N/a stored in the table N/P. the Receiver finds the highest of the thresholds N/a, which is smaller than the measured value N/a, and determines the appropriate data rate as an acceptable data rate. The receiver transmits information about a certain speed p is passing data to the transmitter over the channel RTU from reverse channels.

Between adjacent thresholds N/a stored in the table N/a, there is an interval. Therefore, even though the selected threshold N/a, closest to the value of N/a, between them there is a difference. This difference leads to excessive transmit power on N/a and the probability of packet error. Therefore the transmission of the transmission channel at a data rate associated with the selected threshold N/a, causes unnecessary loss of power transfer.

The following table 1 illustrates as an example the table N/a, which stores the thresholds N/P. When the measured value N/a is equal to -13 dB, the receiver selects a threshold N/a -15 dB in accordance with table 1. In this case, between the measured value is N/a and the selected threshold N/a there is a difference of 2 dB.

Table 1
The data transfer rateThreshold N/a
38,4 KB/s-15 dB
of 76.8 KB/s-12 dB
......
2,4 MB/s+9 dB

Thresholds N/a, data in table 1 satisfy the frequency of reception errors at each data rate. Therefore, the error rate of reception is quite satisfied even for values N/a -15 dB. However, when the value of N/a is equal to -13 dB, you may receive the excess power is -2 dB, causing nanozno the power loss during transmission of data. In addition, this excess power causes interference between the channels and leads to unnecessary bandwidth.

In conclusion, since the system WSPD using the method of adaptation of the line determines the data transmission rate by comparing the values of N/a with predetermined thresholds N/a, you receive the difference between the actual measured value of N/a and the threshold N/a, which becomes a criterion for determining the data transfer rate. This difference causes unnecessary power loss in the transmitter, increases interference between channels in radiosite and leads to unnecessary bandwidth.

The invention

Thus, the present invention is to create a device and method to reduce excessive transmission power in a mobile communication system using an adaptation of the communication line.

Another objective of the present invention is to create a device and method of indication of the data rate and power level in a mobile communication system using an adaptation of the communication line.

Another objective of the present invention is to create a device and method of transmitting values N/a direct channel to the transmitter in a mobile communication system using an adaptation of the communication line.

According to one aspect of the present invention, a method for transmitting MSE of the spine of the direct data transmission and the power level of the direct transmission in the mobile communication system. The access terminal measures N/a forward link pilot signal, determines the speed of the direct transfer of the data by matching the measured N/a reference N/a, creates the difference between the measured N/a reference N/a in the information quality of stock and passes a certain speed direct transmission of data and information inventory on the backward channel transmission. When receiving a certain speed direct transmission of data and information inventory network access reduces the power level of the transmission power corresponding to the information of the stock, and performs direct transmission speed direct transmission of data at a reduced power level.

According to another aspect of the present invention, a method for determining the speed of a direct data transfer and power level of the direct transmission in the mobile communication system. The access terminal measures N/a forward link pilot signal, and transmits the measured N/a reverse data channel. When receiving N/P, the received backward channel data transfer, network access finds the speed of the direct transfer of the data by matching the measured N/a reference N/a associated with the data rate for packet data, determines the information of the stock to determine the power level of the direct transmission by calculating the difference between the received N/a reference N/a if there is N/a is not the same with reference N/a, creates a data transfer associated with a specific data rate, reduces the power level associated with the data transfer rate using the calculated information stock and transmits the data transmission at a reduced power level.

According to another aspect of the present invention proposed a transmission device for a mobile communication system for determining a data transfer rate with N/a and the transmission speed direct transmission of data and power level for the reverse transmission channel by using the information of the stock, determined on the basis of a difference between the reference N/a and N/P. This device contains a first multiplexer for multiplexing time division data transfer rate and information stock, an encoder for encoding the output signal of the multiplexer, an expander for expanding the encoded data transfer rate and information of the stock and a second multiplexer for multiplexing time division back channel pilot signal and the channel ISOP (indicator reverse speed) (RRI) on the output expander.

According to another aspect of the present invention proposed a transmission device for transmitting N/a in the mobile communication system. This device includes an encoder for encoding the measured N/a, extender for EXT is of the output signal of the encoder and a multiplexer for multiplexing time division output signal extender reverse channel pilot signal and the channel ESOP.

Brief description of drawings

The above and other objectives, features and advantages of the present invention will become clearer from the following detailed description together with the accompanying drawings, in which:

figure 1 illustrates a timing diagram of transmission and reception of the forward and backward links in the system WSPD;

figure 2 illustrates a thinned channel sequence of the pilot signal, channel RTU and channel ISOP for the return line in the system WSPD;

figure 3 illustrates the procedure for finding the speed of a direct data transfer and power level on the basis of the USPD and reserve N/a according to the first variant implementation of the present invention;

figa illustrates a timing diagram of the transmit and receive time slots for forward and reverse communication lines, in which the symbol of the USPD and the symbol of the stock N/a are transmitted in two time intervals according to the first variant implementation of the present invention;

figv illustrates a timing diagram of the transmit and receive time slots for forward and reverse communication lines, in which the symbol of the USPD and the symbol of the stock N/a are transmitted in one time interval according to the first variant implementation of the present invention;

figure 5 illustrates the structure of a transmitter in an access terminal for transmission symbol RTU and character inventory in the way that proillyustrirovana on figa;

6 illustrates the procedure for determining the speed of the direct transfer of data and power level based on the value of N/a according to the second variant of implementation of the present invention;

figa illustrates a timing diagram of the transmit and receive time slots for forward and reverse communication lines, in which 8-bit symbol N/a is transmitted in one time interval according to the second variant of implementation of the present invention;

figv illustrates a timing diagram of the transmit and receive time slots for forward and reverse communication lines, in which 8-bit symbol N/a is transmitted in two time intervals according to the second variant of implementation of the present invention;

Fig illustrates the structure of a transmitter in an access terminal for transmission of the symbol N/a in the manner illustrated in figa.

A detailed description of the preferred option run

The preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would disrupt the invention optional details.

In the following description, the expression “direct link” is defined as a wireless link formed in the direction from the network, AN access is PA to the terminal AT the access while the expression “reverse communication” is defined as a wireless link formed in the direction from the terminal AT the access network AN access. In addition, the expression “RTU (data rate)” (DRC) is defined as information on the data transfer rate required by the receiver.

Figure 3 illustrates the procedure for determining the speed of the direct transfer of data and power level on the basis of the USPD and reserve N/a according to the first variant implementation of the present invention. Figure 3 terminal AT the access measures the value N/a forward link pilot signal at operation S110. After this operation S120 terminal AT the access scans the table N/a in table 1 in search of the highest of the thresholds N/a, which is smaller than the measured value N/a, and determines the selected threshold as a reference threshold. Here reference N/a” refers to the threshold N/a, selected on the basis of measured values N/a of thresholds N/a previously saved in the table N/P. After selecting the reference value N/a at operation S120 terminal AT the access determines the data rate associated with the reference value N/a in the table N/a, as an acceptable data rate, and then embeds a certain data rate in chetyrehmetrovy symbol RTU at operation S130.

At operation S140 terminalin access calculates the difference between the measured value N/a and the reference value N/P. The calculated differential value becomes the value of the stock. As table N/a selects the largest of the threshold that is smaller than the measured value N/a, the difference obtained by subtracting the reference value N/a from the measured N/a always has a positive value. Next, at operation S140 terminal AT the access converts the value of the stock information stock containing the specified number of data bits. For example, if stock is divided into 16 levels, it may consist of 4 bits of data. That is, the terminal AT the access creates a four-digit symbol stock using the calculated information of the stock. At operation S150 terminal AT the access encodes the symbol of the USPD and the stock symbol and transmits the coded symbols in the network of AN access.

The symbol of the USPD and the stock symbol is transmitted from a terminal AT the access network AN access radio link. Then, when the operation 3160 network AN access decodes the received symbols RTU and stock. The decoded symbol RTU is served in the scheduler included in the network of AN access, while the decoded symbol stock is fed into the amplifier transfer, included in the network of AN access. Then at operation S170 network AN access finds the access terminal, which should be assigned to channel traffic the next time interval, based on the symbol of the USPD. When the operation 3180 this amp transfer the network AN access defines as the power level value, specified by reducing transmit power on the power level calculated from the symbol of the stock. Therefore, a direct channel traffic reports its data traffic at the level of the transmission power according to the character of the reserve. In contrast, trafc channel direct channel pilot signal and a direct channel DCP (control media access (MAC) are transmitted at a constant power level regardless of the data rate or stock. The terminal AT the access measures the value of N/a, does not depend on the power level of the transmission that is updated according to the character of the stock, but dependent constant power level.

In the first embodiment of the present invention, the terminal AT the access transmits the symbol of the USPD and the symbol of the stock in the network of AN access channel RTU return line connection SPD, as described with reference to figure 2.

For Figo and 4B will be made to the description of the two proposed modes of transmission symbols RTU and stock. Figa illustrates a timing diagram of the transmit and receive time slots for forward and reverse communication lines, in which the symbol of the USPD and the symbol of the stock N/a are transmitted in two time intervals according to the first variant implementation of the present invention. Figv illustrates a timing diagram of the transmit and receive time slots for forward and reverse communication lines, in which the symbol MUSTACHE IS ON and the symbol of the stock N/a are transmitted in one time interval according to the first variant implementation of the present invention.

On figa the symbol of the USPD and the symbol of the stock N/a are transmitted alternately in two time slots on the channel RTU return line connection WSPD. That is, after measuring the values of N/P channel pilot signal straight line SPD AN_Tx and definitions chetyrehvetvevogo character RTU and chetyrehvetvevogo symbol stock N/a respectively opposite line SPD AT_Tx passes chetyrehmetrovy symbol USPD in odd time interval among the 32 time slots constituting one packet, and transmits chetyrehmetrovy symbol stock N/a, corresponding to the just transmitted symbol RTU, even in a time interval.

Network'AN accepts a symbol of the USPD and the stock symbol in the block of two time intervals, and then finds the data rate that should be applied in the next time interval of a straight line, and the power level in the channel traffic. So in the example figa planning in a straight line is performed in the unit of two time intervals, and the value of N/P is also determined by using the value N/a received pilot channel signal of the two time intervals.

On figv the symbol of the USPD and the symbol of the stock N/a are transmitted in the same time interval on the channel RTU return line connection WSPD. General character RTU is repeated once in the same time interval after the expansion. However, the reverse line ATT is in accordance with the present invention transmits alternately chetyrehmetrovy symbol RTU and chetyrehmetrovy the stock symbol in the block of the half-time interval instead of repeating chetyrehvetvevogo character. That is chetyrehmetrovy symbol transmitted in the first half of the duration of one time interval, whereas chetyrehmetrovy the stock symbol is transmitted in the second half of this duration. In the example figv scheduling block from one time interval, but the power level of the transmission return line must be duplicated in order to maintain the probability of error of the method shown in figa.

Figure 5 illustrates the structure of a transmitter in an access terminal for transmission symbol RTU and character inventory in the manner illustrated in figa. Figure 5 first multiplexer (MUX) 131 throws chetyrehmetrovy symbol USPD in odd time interval and generates chetyrehmetrovy the symbol of the stock at an even time interval. Symbol RTU or symbol of the stock that goes from the first multiplexer 131, are (8, 4, 4) biorthogonol coding block encoder 132, and then repeat once a follower 133. The output signals of the repeater 133 original extended Walsh codelength 2 in the first expander 134, and then again expanded in the second expander 135 code Walshselected through a three-bit information of the index “i” for the sector, which belongs to the access terminal. Next, a second enhanced signals is concateno extended Walsh code length 4 in the third expander 136. That is, the signals emerging from the block encoder 132, three times subjected to extension.

Meanwhile, the pilot channel signal is extended Walsh codelength 4 in the expander 101 pilot signal. Next, a three-bit information ISOP orthogonal modulated in the orthogonal modulator 111 and is repeated by the repeater 113 characters Walsh. After that, the output signal repeater 113 characters Walsh extended Walsh codelength 4 in the repeater 115 ESOP.

The second multiplexer 137 multiplexes advanced pilot channel signal, the extended channel ISOP and advanced character RTU or symbol stock-based MBP (TDM). Integrated extender 146 performs a comprehensive expansion of the signals at the output of the second multiplexer 137 and signals in the channels and traffic control, extended Walsh codelength 4 in extender 145 channel traffic. Integrated advanced signal subjected to filtering in the frequency band of the modulating signals, the filter 147 base band and then transmitted to the network of AN access.

When the structure in figure 5 is applied to figv, chetyrehmetrovy symbol RTU and chetyrehmetrovy symbol stock expanded without repeating after they are biorthogonol coding. That is, eredeti should not contain the repeater 133 when the transmission symbol RTU and character inventory.

6 illustrates the procedure for determining the speed of the direct transfer of data and power level based on the value of N/a according to the second variant of implementation of the present invention. Figure 6 terminal AT the access measures the value N/a forward link pilot signal at operation S210. Then at operation S220 terminal AT the access builds from the measured N/a eight-bit symbol N/a, encodes built character, and then transmits this encoded symbol in the network of AN access. That is, the terminal AT the access builds on the measured value N/a eight-bit character instead chetyrehmetrovoy information USPD, as is done in the existing prior art and the first embodiment of the present invention.

In operation S230 network AN access takes a character N/a and decode this received symbol N/P. then at operation S240 network AN access finds the highest of the thresholds N/a, which is smaller than the measured value N/a, and defines this value as a reference value N/P. After determination of the reference value N/a network AN access selects the data rate corresponding to this reference value N/a, table N/a and delivers the selected data transfer rate that is contained in the scheduler at operation S250. The scheduler in the network'AN identifies the selected transmission speed of data is x as the data rate in the channel traffic in a subsequent time interval corresponding terminal AT the access.

After that, when the operation S260 network AN access calculates the factor values N/a in relation to the reference value N/P. This stock is equal to the value determined by subtraction of the reference value N/a from the value of N/as in the first embodiment. At operation S270 network AN access defines as power level value specified by reducing transmit power on the power level calculated according to stock. After determining the power level of the network, AN access gives the value of the power level on the contained power transmission and uses it as the power level of the transmission channel traffic in a subsequent time interval corresponding access terminal. Therefore, a direct channel traffic is transmitted at a certain power level. Meanwhile, the direct channel pilot signal and a direct channel UMD is transmitted at a constant power level regardless of the data rate or stock, as in the first embodiment.

In the second embodiment of the present invention, since the network of AN access determines the speed of transmission of data by searching in the table N/a, the terminal AT the access you want to send RTU in the network of AN access. Instead, the terminal AT the access should transmit the measured value is N/a in the network of AN access. However, since mn is to increase N/a need more bits than symbol RTU, to pass the value of N/P channel RTU return line connection SPD requires a different technique.

The proposed two way transmission of symbol N/P channel RTU return line connection WSPD according to the second variant of implementation of the present invention. Figa illustrates the first method of transmission of symbol N/P channel RTU return line connection according to the second variant of implementation of the present invention, while figv illustrates the second method.

Figa illustrates a timing diagram of the transmit and receive time slots for forward and reverse communication lines, in which 8-bit symbol N/a is transmitted in one time interval according to the second variant of implementation of the present invention. With reference to figa below will be described synchronization of the transmission symbol N/P channel RTU return line connection WSPD according to the present invention.

In the above-described existing prior art symbol RTU applied in the system, consists of 4 bits and repeats once before passing. However, in the second embodiment of the present invention the head is 4 bits, and the following 4 bits of eight-bit symbol N/a passed block half-time interval instead of repeating chetyrehvetvevogo character RTU in the same time interval. Therefore, the entire eight-bit symbol N/a is transmitted only one time and the interval. Here, head 4 bits of the symbol N/a is transmitted in the first half of the time interval, while the following 4 bits of the symbol N/a is transmitted during the second half of the time interval. When this network is AN access performs the scheduling unit from one time interval.

Figv illustrates a timing diagram of the transmit and receive time slots for forward and reverse communication lines, in which 8-bit symbol N/a is transmitted in two time intervals according to the second variant of implementation of the present invention. With reference to figv below will be described synchronization of the transmission symbol N/P channel RTU return line connection WSPD according to the present invention.

Eight-bit symbol N/a shares on the head 4 bits and 4 bits, and the head 4 bits, and the following 4 bits are alternately transmitted in two time intervals in the unit of one time interval. Specifically, the head 4 bits of the symbol N/a passed in odd-numbered time intervals among the 16 time slots constituting one package, while the following 4 bits of the symbol N/a is transmitted in an even-numbered time intervals. Therefore, the method according to figv requires two time slots to transmit the entire symbol N/a, but can transmit the symbol N/a on half power compared with the method according to figa.

Fig illustrates the structure of the transmitter is the access terminal to transmit the symbol N/a in the way, illustrated figa. On Fig eight-bit symbol N/a subject (8, 4, 4) biorthogonol coding block coder 231. The output signal of this block encoder 231 is extended without repetition. The extension here is a three step process. That is, the output signal of block encoder 231 is subjected to a primary extension code Walshlength 2 in the first expander 233, secondary extension code Walshselected trebitowski index information “i”, the second expander 235 and, finally, the third extension code Walshlength 4 in the third extender 237.

Meanwhile, the pilot channel signal is extended Walsh codelength 4 in the expander 201 pilot signal. Next, a three-bit information ISOP orthogonal modulated in orthogonal modulator 211 and is repeated by the repeater 213 symbol Walsh. After that, the output signal repeater 213 symbol Walsh extended Walsh codelength 4 in extender 215 ESOP.

The multiplexer 239 multiplexes advanced pilot channel signal, the extended channel ISOP and advanced character N/a based on the ISI. Integrated extender 246 performs a comprehensive extension of the output signal of the multiplexer 239 and signal channels Proc. of the fika and management, extended Walsh codelength 4 in extender 245 channel traffic. Integrated advanced signal subjected to filtering in the frequency band of the modulating signals, the filter 247 main strip, and then transmitted to the network of AN access.

When applied to figv structure Fig needs multiplexer installed in the input stage block encoder 231 and the repeater that is installed in the following cascade block coder 231. Thus, during data transfer, as shown in the method according to figv, the multiplexer multiplexes head 4 bits and the following 4 bits of the symbol N/a based on the ISI. So head 4 bits are transmitted in the first half of the time interval, while the following 4 bits are transmitted in the second half of the time interval. In addition, the block-coded signal issued from the block encoder 231 repeats once the repeater. After this operation the three-step expansion is performed in exactly the same way.

As described above, it is possible to reduce the excess transmit power by applying the present invention to a mobile communication system using the method of adaptation of the communication line. This reduction of excess transmit power is contributing to the reduction of interference to other sectors and other signals and increased system throughput.

Although sabreena shown and described with reference to certain preferred implementation, specialists in the art it is clear that it is possible to make numerous changes in form and detail without departure from the essence and scope of the invention defined by the attached claims.

1. The method of determining the speed of a direct data transfer and power management direct access terminal of a mobile communication system, namely, that

measure taken against the carrier to interference (N/a) forward link pilot signal, and determine the speed of the direct transfer of the data by matching the measured N/a reference N/a based on the data rate for packet data,

calculate the difference between the measured N/a reference N/a if the measured N/a not the same with reference N/a,

specify the information of the stock to determine the power level of the direct transmission using said difference and

transmit control character data rate (USPD) and the symbol of the stock on the backward channel transmission.

2. The method according to claim 1, characterized in that when determining the speed of the direct transfer of the data

choose the highest of the thresholds N/a, which is smaller than the measured N/a stored in the table N/a, as a reference N/a, and

determine the data rate corresponding to the selected reference N/P.

. The method according to claim 1, characterized in that when determining the information of stock

calculate the difference between the reference N/a and the measured N/a and define information stock by converting the calculated difference value, consisting of a specified number of data bits.

4. The method according to claim 1, characterized in that when transmitting symbol RTU and character inventory transmit symbol a certain speed direct transmission of data in one time interval, and the information of the stock in the next time interval for the reverse transmission channel.

5. The method according to claim 4, characterized in that the symbol of the USPD and the stock symbol is repeated once before the transfer.

6. The method according to claim 4, characterized in that the N/a measure for the two time intervals of the forward link pilot signal.

7. The method according to claim 1, characterized in that when transmitting symbol RTU and character inventory transmit symbol a certain speed direct transmission of data and information inventory in one time interval for the reverse transmission channel.

8. The method of determining the speed of a direct data transfer and power level of the direct transmission in the access network of a mobile communication system, namely, that

take control character data rate (USPD) and the symbol of the stock return line,

create data to be reported on the accepted speed transmission and data and

determine the level of transmission power on the basis of the received symbol data rate, reduce a level of transmission power using the received information of the stock and transfer data at this reduced power level.

9. The method of claim 8, wherein the forward link pilot signal, transmits a signal at a constant power level regardless of the speed of the direct transfer of data or information of stock.

10. The method according to claim 9, characterized in that, if the symbol of the USPD and the symbol of the stock take in two time intervals, the planning speed direct transmission of data and determining the level of transmission power is performed in the unit of two time intervals.

11. The method of determining the speed of a direct data transfer and power management direct transmission in a mobile communication system, namely, that

measure taken against the carrier to interference (N/a) forward link pilot signal at the access terminal,

determine the speed of the direct transfer of the data by matching the measured N/a reference N/a,

determine the difference between the measured N/a reference N/a as information stock,

transmit control character data rate (USPD) and the symbol of the stock on the backward channel transmission and

reduce the level m is snasti transmission in the access network capacity, relevant information inventory, and perform direct transmission speed direct data transfer while reducing the transmission power when the reception symbol speed direct transmission of data and information inventory.

12. The method according to claim 11, characterized in that when determining the speed of the direct transfer of the data

choose the highest of the thresholds N/a, which is smaller than the measured N/a stored in the table N/a, as a reference N/a, and

determine the data rate corresponding to the selected reference N/P.

13. The method according to claim 11, characterized in that when determining the information of stock calculate the difference between the reference N/a and the measured N/a and convert this calculated difference value, consisting of a specified number of data bits.

14. The method according to claim 11, characterized in that when transmitting symbol RTU and character inventory transmit symbol data rate in one time interval, and the information of the stock in the next time interval for the reverse transmission channel.

15. The method according to 14, characterized in that the symbol of the USPD and the stock symbol is repeated once before the transfer.

16. The method according to 14, characterized in that the access terminal measures N/a for the two time intervals of the forward link pilot signal.

17. The method according to 14, wherein, if the character RTU and character inventory etc who take in two time intervals, the access network performs the planning speed direct transmission of data and determining the level of transmission power in the unit of two time intervals.

18. The method according to claim 11, characterized in that the symbol of the USPD and the stock symbol transmit in one time slot on the reverse channel transfer.

19. The method according to claim 11, characterized in that the access network transmits a signal to direct the pilot channel signal at a constant power level regardless of the speed of transmission of data or information of stock.

20. The method of determining the speed of a direct data transfer and power level of the direct transmission in the mobile communication system, namely, that

measure the adopted symbol of the relationship of carrier to interference (N/a) forward link pilot signal,

transmit symbol measured ratios of carrier to interference (N/a) on the reverse control channel data rate (USPD),

define the access terminal speed direct transmission of data by matching the measured relationship N/a reference N/a associated with the data rate for packet data, when the reception symbol measured N/a feedback line,

specify the information of the stock to determine the power level of the direct transmission by calculating the difference between the measured N/a reference N/a,

determine the level of power the STI direct transmission of information of stock and

transmit data direct transmission at a certain power level and a certain speed direct transmission of data.

21. The method according to claim 20, characterized in that the transmitted symbol of the relationship of carrier to interference (N/a) twice as long than the character control data transfer rate.

22. The method according to claim 20, characterized in that the symbol N/a share on the head bits and these bits are the same length as the management data transmission rate (USPD), and head bits transmit first in one time interval, then the following bits to transmit in the next time interval.

23. The method according to claim 20, characterized in that the transmitted symbol of the relationship of carrier to interference (N/a) transmit in one time slot of the control channel data rate without repetition.

24. The method according to item 23, wherein the transmitted symbol of the relationship of carrier to interference (N/a) divided into head bits and these bits, and head bits and these bits are passed respectively in the first half of the time interval and the second half of the time interval of the reverse channel RTU.

25. The method of determining the speed of a direct data transfer and power level of the direct transmission in the access network of a mobile communication system, namely, that

take the symbol of the measured ratios of carrier to interference (N/a) education the Noi line

determine the speed of the direct transfer of the data by matching the measured N/a reference N/a based on the data rate for packet data,

specify the information of the stock to determine the power level of the direct transmission by calculating the difference between the measured N/a reference N/a if the measured N/a not the same with reference N/a,

create data to be transferred at a certain speed direct transmission of data

reduce the power level by using the calculated information of the stock and transfer data transfer at this reduced power level.

26. The method according to p. 25, wherein if the symbol N/a accept in two time intervals, the planning speed transmission of data and information inventory performed in the unit of two time intervals.

27. The method according A.25, characterized in that when determining the speed of the direct transfer of the data

choose the highest of the thresholds N/a, which is equal to or less than the measured N/a stored in the table N/a, as a reference N/a, and

determine a data rate associated with the selected reference N/P.

28. The method according to p. 25, wherein the forward link pilot signal, transmits a signal at a constant power level regardless of the speed of the direct transfer of data is x or information stock.

29. The method of determining the speed of a direct data transfer and power level of the direct transmission in the mobile communication system, namely, that

measure the adopted symbol of the relationship of carrier to interference (N/a) forward link pilot signal at the access terminal,

transmit symbol measured N/a reverse control channel data rate (USPD),

define network access speed direct transmission of data by matching the measured N/a reference N/a associated with the data rate for packet data, when the reception symbol measured N/a feedback line,

specify the information of the stock to determine the power level of the direct transmission by calculating the difference between the measured N/a reference N/a if the received symbol N/a is not identical with the reference N/a,

create data to be transferred at a certain speed direct transmission of data

reduce the power level by using the calculated information of stock and

transmit data transfer at this reduced power level.

30. The method according to clause 29, wherein the symbol of the relationship of carrier to interference (N/a) twice as long than the character RTU.

31. The method according to item 30, wherein the symbol N/a share on the head bits and these bits are the same length as the authority is the data rate (USPD), and head bits transmit first in one time interval, and the following bits to transmit in the next time interval.

32. The method according to clause 29, wherein the symbol of the relationship of carrier to interference (N/a) transmit in one time slot of the control channel data rate without repetition.

33. The method according to p, characterized in that the symbol N/a share on the head bits and these bits, and head bits and these bits are passed respectively in the first half of the time interval and the second half of the time interval of the reverse channel RTU.

34. The method according to clause 29, wherein, if the symbol N/a accept in two time intervals, the planning speed transmission of data and information inventory performed in the unit of two time intervals.

35. The method according to clause 29, wherein when determining the speed of the direct transfer of the data

choose the highest of the thresholds N/a, which is smaller than the measured N/a stored in the table N/a, as a reference N/a, and

determine a data rate associated with the selected reference N/P.

36. The method according to clause 29, wherein the forward link pilot signal transmits its channel signal at a constant power level regardless of the speed of the direct transfer of data or stock.

37. The transmitting device is for a mobile communication system to determine the speed of the direct transfer of data using values of the relationship of carrier to interference (N/a), measured from a pilot channel signal, and to transmit the symbol rate of the direct transmission of data and power level for the reverse transmission channel by using the information of the stock, determined on the basis of a difference between the reference N/a and the measured N/a containing

a first multiplexer for multiplexing time division symbol speed control data (USPD) and the symbol of the stock,

an encoder for encoding the output signal of the first multiplexer,

an expander for expanding the coded symbol of the USPD and the symbol of the stock and

a second multiplexer for multiplexing time division signal of the reverse pilot channel signal, the channel signal ISOP (speed indicator postback) and extended coded symbol RTU and character inventory.

38. The transmitting device according to clause 37, characterized in that it further comprises a repeater for repeating the output signal of the encoder and feed its output signal to the expander, if the symbol rate of the direct transmission of data and information inventory transmitted in two time intervals.

39. The transmitting device according to § 38, wherein the first multiplexer alternately outputs the rate of direct transmission of data and information inventory in the unit of one time interval.

40. Transmitting the device for transmission of the character of the relationship of carrier to interference (N/a) in a mobile communication system, contains an encoder for encoding the measured N/a, extender for extending the output signal of the encoder and the first multiplexer for multiplexing time division output signal extender, reverse channel pilot signal and channel indicator speed reverse transmission (ISOP).

41. The transmitting device according to p, wherein the received symbol N/a is given in the unit of one time interval, if the received symbol N/a passed block from one time frame separation symbol N/a on head bits and these bits.

42. The transmitting device according to p, characterized in that it further contains

a second multiplexer that is installed in the input stage of the encoder, for an equal division of the symbol N/a on head bits and these bits, if the symbol N/a transferred block of two time intervals, issue, head bits in the first time interval and issue the following bits in the next time interval, and

repeater installed between the encoder and the expander, the repetition of the output signal of the encoder.



 

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