CN102088758B

CN102088758B - Method, device and system for power control

Info

Publication number: CN102088758B
Application number: CN2010102239131A
Authority: CN
Inventors: 李媛媛; 邢艳萍; 齐亮
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2010-07-01
Filing date: 2010-07-01
Publication date: 2013-04-03
Anticipated expiration: 2030-07-01
Also published as: WO2012000453A1; CN102088758A

Abstract

The invention discloses a method, device and system for power control, used for realizing accurate numbering of shared channels on a multi-carrier system and further realizing corresponding power control. In the method, a TTI (Transmission Time Interval) is used as a unit by a sending end, cycled numbering is carried out on the shared channels respectively borne by a plurality of carrier waves, the number of each shared channel is delivered to a receiving end by utilizing the plurality of carrier waves, and the receiving end is instructed to perform the corresponding power control according to the continuity of the number of each shared channel; the receiving end is used for counting the block error rate of the carrier waves according to the continuity of the numbering of each shared channel by taking the TTI as the unit after the number of each shared channel, which is passed by the sending end, is received by the receiving end and resetting a target signal-to-noise ratio of the carrier waves on the basis of the block error rate. Thus, accurate and effective outer-loop power control is realized in the multi-carrier system and the system performance is improved. The invention simultaneously discloses a corresponding device and method for the power control.

Description

Power control method, device and system

Technical Field

The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a system for power control.

Background

Power control is a basic concept in cellular mobile communications. Since a Code Division Multiple Access (CDMA) system is an interference-limited system, it is very sensitive to variations in transmission power of a signal and channel characteristics. Therefore, power control is an indispensable important means for effectively controlling interference between users, improving power utilization, increasing user capacity and call quality of the entire system, and further effectively utilizing radio resources.

Power control is classified into open-loop power control and closed-loop power control according to whether a mobile station and a base station participate simultaneously. The closed-loop power control refers to a process that a sending end controls the transmitting power according to feedback information sent by a receiving end; and the open-loop power control does not need the feedback of the receiving end, and the transmitting end controls the transmitting power according to the information obtained by the self measurement. Closed loop power control can be further divided into inner loop power control and outer loop power control. The inner loop power control determines the power adjustment step mainly by comparing the received signal-to-noise ratio with a target signal-to-noise ratio. The outer loop power control updates the target signal-to-noise ratio according to the QoS or Block Error Rate (BLER) requirement of the service. Because the target SNR values required by meeting the QoS requirement are different under different wireless channel environments, and because the channel environment is constantly changed, a universal target SNR value is difficult to obtain, the outer loop power control is added. In the outer loop control, a receiving end detects the error probability (BLER) of a code block and updates a target signal-to-noise ratio value accordingly, and if the error probability is lower than the QoS requirement, a controller reduces the target signal-to-noise ratio value; otherwise, the target signal-to-noise ratio is increased.

In a Time Division-Synchronous Code Division multiple access (TD-SCDMA) system, in Channel transmission information of an enhanced uplink dedicated Channel absolute Grant Channel (E-AGCH) and a shared control Channel (shared control Channel for HS-DSCH, HS-SCCH) of a high speed downlink shared Channel, in order to save bit bearing, a UE-ID is implicitly contained in information bits of the E-AGCH/HS-SCCH, that is, an exclusive or operation is performed with a cyclic check Code (CRC), so that a CRC check function is jointly embodied. There are two types of reasons for CRC error, one is that the information does not belong to the mobile station (UE), and the other is data transmission error block; therefore, the method of counting BLER by CRC check is not applicable to the above two types of channels. Therefore, E-AGCH Cyclic Sequence Number (ECSN) and HS-SCCH Cyclic Sequence Number (HCSN) are introduced into channel transmission information of the HS-SCCH and the E-AGCH, wherein the ECSN and the HCSN respectively occupy 3 bits. The sending end sets a cyclic sequence number for the E-AGCH/HS-SCCH according to the sending time of the E-AGCH/HS-SCCH, the receiving end judges whether the E-AGCH/HS-SCCH channel is lost or not according to the continuity of the received ECSN/HSCN, namely, when the CRC is correct, the ECSN/HCSN of the current time is read, whether the cyclic continuity is judged by comparing with the ECSN/HCSN of the previous time, if the cyclic continuity is not achieved, the number of the lost E-AGCH/HS-SCCH channels can be counted according to the difference of the serial numbers, and then the Block loss probability (Block Error Rate, BLER) of the shared channel within a period of time is calculated, so that the set target signal-to-noise ratio is updated, and the purpose of outer loop. It can be seen that in the current standard, the ECSN/HCSN becomes the only means to count the channel BLER due to the channel format of the E-AGCH/HS-SCCH channel.

However, in the prior art, a transmitting end supporting a single carrier technology can only transmit and receive information on one carrier. Therefore, the E-AGCH/HS-SCCH channel and the traffic channel scheduled by the E-AGCH/HS-SCCH channel are carried on the same carrier, and the receiving end only receives the scheduling of one shared channel in any Transmission Time Interval (TTI), so that the setting of the single carrier ECSN/HCSN is only for the E-AGCH/HS-SCCH channel on one carrier, and the number is cyclically incremented according to the Transmission Time.

After introducing the multi-carrier HSDPA technology, the receiving end has the capability of receiving multiple carriers at the same time, and HS-SCCH channels controlling High Speed Downlink Shared Channel (HS-PDSCH) of all carriers may all be configured on one carrier, that is, a Shared Channel scheduling a certain carrier may not be carried on the carrier. Also, the base station may schedule for multiple carriers within the same TTI. In the multi-carrier HSUPA phase, a terminal may send and receive information on multiple carriers. The E-AGCH channels of each carrier are distributed on the E-PUCH carrier controlled by the channel (multiple mode), and the base station can schedule for multiple carriers in the same TTI. This is different from the single carrier system, and therefore, the numbering method of ECSN and HCSN in the single carrier system and the method of performing outer loop power control according to ECSN and HCSN provided in the prior art are obviously not suitable for the multi-carrier system.

In view of the above, it is necessary to redesign the numbering method of the shared channel and the power control method adopted according to different numbering methods for the multi-carrier system.

Disclosure of Invention

The embodiment of the invention provides a method, a device and a system for power control, which are used for realizing accurate numbering of a shared channel aiming at a multi-carrier system so as to realize corresponding power control.

The embodiment of the invention provides the following specific technical scheme:

a method of power control, comprising:

a sending end determines a plurality of carriers needed to be used for transmitting data;

the sending end carries out cyclic numbering on the shared channels respectively borne by the multiple carriers by taking TTI as a unit;

the sending end transmits the serial numbers of the shared channels to the receiving end by utilizing the plurality of carriers, and instructs the receiving end to execute corresponding power control according to the continuity of the serial numbers of the shared channels.

A method of power control, comprising:

the receiving end receives the serial numbers of the shared channels sent by the sending end by adopting the method;

the receiving end takes TTI as a unit, and counts the block loss probability of the plurality of carriers according to the continuity of the serial numbers of the shared channels;

and the receiving end resets the target signal-to-noise ratios of the multiple carriers based on the statistical block loss probabilities of the multiple carriers.

An apparatus for power control, comprising:

a determining unit, configured to determine a plurality of carriers to be used for transmitting data;

a numbering unit, configured to circularly number, in units of TTIs, the shared channels carried by the multiple carriers, respectively;

and the communication unit is used for transmitting the number of each shared channel to the receiving end by using the plurality of carriers and instructing the receiving end to execute corresponding power control according to the continuity of the number of each shared channel.

An apparatus for power control, comprising:

a communication unit, configured to receive a number of each shared channel transmitted by the apparatus;

a counting unit, configured to count block loss probabilities of the plurality of carriers according to continuity of numbers of the shared channels in units of TTIs;

and the processing unit is used for resetting the target signal-to-noise ratios of the multiple carriers based on the statistical block loss probabilities of the multiple carriers.

A power control system comprises a transmitting end and a receiving end, wherein,

the sending end is used for determining a plurality of carriers needed to be used for transmitting data, circularly numbering the shared channels borne by the carriers by taking TTI as a unit, transmitting the numbers of the shared channels to the receiving end by utilizing the carriers, and indicating the receiving end to execute corresponding power control according to the continuity of the numbers of the shared channels.

and the receiving end is used for receiving the serial numbers of the shared channels sent by the sending end, counting the block loss probability of the carriers according to the continuity of the serial numbers of the shared channels by taking TTI as a unit, and resetting the target signal-to-noise ratios of the carriers based on the counted block loss probability of the carriers.

The invention has the following beneficial effects:

in the embodiment of the invention, aiming at the multi-carrier system, a cyclic numbering method of a sending end aiming at a shared channel is provided, and a receiving end counts the block loss probability by judging whether the numbering is continuous or not according to different cyclic numbering methods and adjusts the target signal-to-noise ratio, thereby completing the outer ring power control method of the shared channel of the multi-carrier system, further realizing accurate and effective outer ring power control in the multi-carrier system and improving the system performance.

Drawings

Fig. 1 is a flowchart illustrating a power control indication performed by a transmitting end according to an embodiment of the present invention;

fig. 2-fig. 7 are schematic diagrams illustrating that a sending end carries out cyclic numbering on shared channels carried by multiple carriers according to an embodiment of the present invention;

fig. 8 is a flowchart illustrating a power control performed by a receiving end according to an indication of a transmitting end in an embodiment of the present invention;

FIG. 9 is a system architecture diagram for power control in an embodiment of the present invention;

fig. 10 is a functional structure diagram of a transmitting end in the embodiment of the present invention;

fig. 11 is a functional structure diagram of a receiving end in an embodiment of the present invention.

Detailed Description

At present, in a mobile communication system adopting a single carrier technology, a transmitting end often adopts a method of adding a cyclic sequence number to transmission information of a shared channel to assist a receiving end in performing power control. With the adoption of the Multi-carrier technology, Access schemes such as Multi-carrier High Speed Downlink Packet Access (MC-HSDPA) and Multi-carrier High Speed uplink Packet Access (MC-HSUPA) are introduced into a mobile communication system. The existing cyclic numbering mode aiming at the shared channel under the single carrier cannot well achieve the purpose of assisting the receiving end to carry out power control, so in the embodiment of the invention, aiming at the multi-carrier system, a new cyclic numbering method aiming at the shared channel used by the sending end is provided, and is used for assisting the receiving end to complete the power control.

The shared channel can be E-AGCH or HS-SCCH, or other shared channels, the common feature of the shared channel is that the UE-ID is implicitly contained in the cyclic check code (CRC) check information, so that the receiving end can only count the block loss probability (BLER) in a cyclic numbering mode to the shared channel, thereby achieving the purpose of power control. The sending end can be a base station or a terminal, correspondingly, the receiving end can be a terminal or a base station, and in order to make the understanding of the numbering modes of the sending end and the receiving end consistent, the two parties can use high-level signaling, physical signaling or protocol standards to agree in advance on the circular numbering mode of the shared channel.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the embodiment of the present invention, the numbering of the shared channels carried on multiple carriers by the sending end is to perform power control indication on the receiving end, and referring to fig. 1, the detailed flow of the power control indication on the receiving end is realized by the sending end based on the numbering of the shared channels carried on multiple carriers as follows:

step 100: the transmitting end determines a plurality of carriers to be used for transmitting data.

Step 110: and the sending end carries out cyclic numbering on the shared channels carried by the carriers respectively by taking TTI as a unit.

Step 120: the sending end transmits the serial number of each shared channel to the receiving end by using the plurality of carriers, and instructs the receiving end to execute corresponding power control according to the continuity of the serial numbers of the shared channels.

In step 120, the transmitting end transmits data to the receiving end through each shared channel carried by a plurality of carriers, and since the number of each shared channel is carried in the channel transmission information transmitted by the transmitting end as a part of the channel format, the receiving end receives the number of each shared channel as well as the data transmitted by the transmitting end through each shared channel.

In the above embodiment, the sending end, when performing step 110, includes, but is not limited to, the following two manners a and B:

the method A is characterized in that TTI is taken as a unit, and independent cyclic numbering is respectively carried out on a shared channel borne by each carrier; that is, within a plurality of carriers, the shared channels carried by the carriers are circularly numbered independently for every TTI.

When the implementation mode A is realized, the following three implementation modes, namely a1, a2 and a3, are further divided:

a1, in the same carrier, using the same number for multiple shared channels in the same TTI.

For example, referring to fig. 2, in TTIt +1 of carrier i, the shared channel of control carrier i +1, the shared channel of control carrier i +2, and the shared channel of control carrier i +3 are all numbered 1.

The numbering of the other carriers is the same as that of the carrier i, and is not described herein again.

The maximum value of the number of each shared channel is L (L is a predetermined natural number), and the number is filled in the channel transmission information (e.g., format) of the shared channel.

a2, in the same carrier, a plurality of shared channels in the same TTI are numbered differently.

For example, referring to fig. 3, in TTIt +1 of carrier i, the shared channel number of control carrier i +1 is 1, the shared channel number of control carrier i +2 is 2, and the shared channel number of control carrier i +3 is 3.

The numbering of the other carriers is the same as that of the carrier i, and the description thereof is omitted here.

On the other hand, when the numbering is performed by the method a2, for a plurality of shared channels carried by the same carrier in the same TTI, the cyclic numbering is performed in the order of the channelization codes used by the shared channels from low to high, or the cyclic numbering is performed in the order of the frequencies of the carriers controlled by the shared channels from low to high.

a3, in the same carrier, the shared channels which control the same carrier but in different TTIs are circularly numbered.

For example, referring to fig. 4, the shared channel of the control carrier i is respectively numbered 0, 1, and 2 in TTI t, TTI t +1, and TTI t +2, and the shared channel of the control carrier i +1 is respectively numbered 0 and 1 in TTI t +1 and TTI t +2, and the numbers are independent from each other and do not interfere with each other; and because the shared channel controlling a certain carrier is allowed to appear only once in one TTI, no numbering conflict occurs.

Mode B, taking TTI as a unit, and carrying out joint cycle numbering on shared channels respectively borne by a plurality of carriers; that is, the shared channels carried by the carriers are cyclically numbered uniformly every TTI.

When the implementation mode B is realized, the following three implementation modes B1, B2 and B3 are further divided:

b1, among a plurality of carriers, a plurality of shared channels in the same TTI are assigned with the same number. For example, referring to fig. 5, in TTI t +1 of carrier i, the common channel of control carrier i and the common channel of control carrier i +1 are both numbered 1, and in TTI t +1 of carrier i +1, the common channel of control carrier i +2 is also numbered 1. When numbering the shared channels, it is not distinguished which carrier the shared channels specifically control.

b2, among a plurality of carriers, adopting different numbers for a plurality of shared channels in the same TTI;

for example, referring to fig. 6, in TTI t +1 of carrier i, the shared channel number of control carrier i is 1, the shared channel number of control carrier i +1 is 2, and in TTI t +1 of carrier i +1, the shared channel number of control carrier i +2 is 3. When numbering the shared channels, it is not distinguished which carrier the shared channels specifically control.

On the other hand, when the numbering is performed by the method b2, for a plurality of shared channels carried by a plurality of carrier frequencies in the same TTI, the cyclic numbering is performed in the order of the channelization codes used by the shared channels from low to high, or the cyclic numbering is performed in the order of the frequencies of the carriers controlled by the shared channels from low to high.

b3, among a plurality of carriers, the shared channels which control the same carrier but different TTIs are circularly numbered.

For example, referring to fig. 7, the shared channel number of the control carrier i is 0 in TTI t of the carrier i, the shared channel number of the control carrier i is 1 in TTI t +1 of the carrier i +1, and the shared channel number of the control carrier i is 2 in TTI t +2 of the carrier i; similarly, the shared channel number of the carrier i +1 is controlled to be 0 in the TTI t +1 of the carrier i, and the shared channel number of the carrier i +1 is controlled to be 1 in the TTI t +2 of the carrier i + 1. The numbering modes are independent and do not interfere with each other; and because the shared channel for controlling a certain carrier is only allowed to appear once in one TTI, no numbering conflict occurs

Based on the above embodiments, referring to fig. 8, in the embodiment of the present invention, a detailed flow of performing power control by the receiving end according to the instruction of the transmitting end is as follows:

step 800: the receiving end receives the number of each shared channel sent by the sending end in steps 100-120.

In practical applications, when receiving data transmitted by each shared channel from a transmitting end, a receiving end first needs to perform cyclic check code (CRC) check on the data, and when the data is confirmed to be correct, reads out the number of the shared channel to perform continuity judgment.

Step 810: and the receiving end counts the block loss probability of the multiple carriers by taking the TTI as a unit according to the continuity of the serial numbers of the shared channels borne by the multiple carriers.

Step 820: and the receiving end resets the target signal-to-noise ratios of the multiple carriers based on the statistical block loss probability of the multiple carriers.

In the above embodiment, when step 810 is executed, the following X, Y, Z implementation manners are included but not limited to:

and in the mode X, if the sending end respectively carries out independent cyclic numbering on the shared channels respectively borne by the plurality of carriers by taking TTI as a unit, the receiving end respectively carries out block loss probability statistics on the plurality of carriers independently.

In implementation X, the following three implementations X1, X2, and X3 are further divided:

x1, if the sending end is in the same carrier, the same number is adopted for the multiple shared channels in the same TTI, the receiving end respectively judges whether the number of the numbers meeting the continuity in the numbers of the shared channels received by the current TTI reaches a set threshold value (such as 1), if so, the channel is determined not to be lost, otherwise, the channel is determined to be lost, and the block loss probability of the multiple carriers is respectively counted based on the judgment result.

After the receiving end respectively carries out the block loss probability statistics on the plurality of carriers, the receiving end also needs to respectively reset corresponding target signal-to-noise ratios on the plurality of carriers according to the respective block loss probabilities of the plurality of carriers.

For example: the shared channel carried on the carrier i is HS-SCCH, and the sending end adopts a1 mode for numbering, then, after receiving the data sent by the sending end, the receiving end firstly performs CRC check, reads the HCSN of each HS-SCCH after the check is passed, and assuming that the HCSN of the HS-SCCH1 received by the receiving end in TTI t is 0, and the HCSN of the HS-SCCH2 is 0, then:

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 1, the HCSN of the HS-SCCH2 is 1, and the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTI t are kept continuous, determining that the HS-SCCH is not lost in the TTI t + 1;

if the HCSN of the HS-SCCH1 received by the receiving end in TTI t +2 is 2, the HCSN of the HS-SCCH2 is 2, and the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in TTI t are not continuous, determining that the HS-SCCH is lost in TTI t + 1;

then, on the carrier i, the HS-SCCH channel with the HCSN of 1 is not received, and the HS-SCCH channels with the HCSNs of 0 and 2 are received, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1, and the block loss probability of the carrier i is calculated through continuous statistics for a period of time. Through simulation, a corresponding relation curve of the BLER and the signal-to-noise ratio (SIR) under different channel environments can be obtained, and the required signal-to-noise ratio of the HS-SCCH channel under different channel environments when the BLER is 0.01 is provided in Table 1. Supposing that the calculated BLER is 0.015, the channel environment is proved to be deteriorated at this time, the original target signal-to-noise ratio cannot meet the requirement that the BLER is 0.01, and the target signal-to-noise ratio of the carrier i needs to be reset to-8.61 dB from-9.40 dB, so that the outer loop power control of the HS-SCCH channel is completed. Where the correspondence between BLER and SIR depends on the specific algorithm implementation, table 1 is only given as an example.

TABLE 1

The above embodiments are also applicable to an E-AGCH channel in a multi-carrier system, where the E-AGCH and an E-PUCH scheduled by the E-AGCH share a carrier under a normal condition, for example, all shared channels of a scheduled carrier i are carried on a carrier frequency i, and for this condition, the above embodiments are also applicable, and are not described herein again.

x2, if the sending end is in the same carrier, adopting different numbers for multiple shared channels in the same TTI, the receiving end respectively judges whether the numbers of all the shared channels received in the current TTI all meet the continuity for the multiple carriers, if so, the receiving end determines that the shared channels are not lost, otherwise, the receiving end determines that the shared channels are lost, and respectively counts the block loss probability of the multiple carriers based on the judgment result.

For example: the shared channel carried on the carrier i is HS-SCCH, and the sending end adopts a2 mode for numbering, then, after receiving the data sent by the sending end, the receiving end firstly performs CRC check, reads the HCSN of each HS-SCCH after the check is passed, and assuming that the HCSN of the HS-SCCH1 received by the receiving end in TTI t is 0, and the HCSN of the HS-SCCH2 is 1, then:

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 2, the HCSN of the HS-SCCH2 is 3, and the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTI are continuous, determining that the HS-SCCH is not lost in the TTI t + 1;

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 3, the HCSN of the HS-SCCH2 is 4, and the HCSN of the HS-SCCH is not continuous with the HCSN of the HS-SCCH in the TTI t, determining that the HS-SCCH is lost in the TTI t + 1;

then, on the carrier i, the HS-SCCH channel with the HCSN of 2 is not received, and the HS-SCCH channels with the HCSNs of 0, 1, 3, and 4 are received, that is, the number of correctly received blocks is 4, and the number of lost blocks is 1, and the block loss probability of the carrier i is calculated through continuous statistics for a period of time. Through simulation, a corresponding relation curve of BLER and SIR under different channel environments can be obtained, and the required signal-to-noise ratio of the HS-SCCH channel under different channel environments when BLER is 0.01 is provided in Table 1. Supposing that the calculated BLER is 0.015, the channel environment is proved to be deteriorated at this time, the original target signal-to-noise ratio cannot meet the requirement that the BLER is 0.01, the target signal-to-noise ratio of the carrier i needs to be reset to-8.61 dB from-9.40 dB, and therefore the outer loop power control of the HS-SCCH channel is completed.

x3, if the sending end is in the same carrier, the sending end carries out cycle numbering aiming at the shared channel which is in different TTI and controls the same carrier, the receiving end respectively judges whether the number of the shared channel which is received in the current TTI and controls a certain carrier meets the continuity aiming at the plurality of carriers, if so, the receiving end determines that the shared channel is not lost, otherwise, the receiving end determines that the shared channel is lost, and the block loss probability of the plurality of carriers is respectively counted based on the judgment result.

For example: the carrier i carries the shared channel HS-SCCH1 for controlling the carrier i, the shared channel HS-SCCH2 for controlling the carrier i +1, and the sending end numbering in a3 mode, then after receiving the data sent by the sending end, the receiving end firstly performs CRC check, after passing the check, reads the HCSN of each HS-SCCH, and assuming that the HCSN of the HS-SCCH1 received by the receiving end in TTI t is 0, and the HCSN of the HS-SCCH2 is 1, then:

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 1, the HCSN of the HS-SCCH2 is 2, and the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTit are kept continuous, determining that the HS-SCCH is not lost in the TTI t + 1;

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 2, the HCSN of the HS-SCCH2 is 3, and the HCSN of the HS-SCCH is not continuous with the HCSN of the HS-SCCH in the TTI t, determining that the HS-SCCH is lost in the TTI t + 1;

then, for the shared channel of the control carrier i, the HS-SCCH channel with HCSN of 1 is not received, and the HS-SCCH channels with HCSNs of 0 and 2 are received, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1; controlling the shared channel of the carrier i +1, receiving no HS-SCCH channel with the number of 2 and receiving HS-SCCH channels with the numbers of 1 and 3; the total number of lost blocks is 1+ 1-2, and the total number of received blocks is 2+ 2-4. And calculating the block loss probability of the carrier frequency i through continuous statistics of a period of time. Through simulation, a corresponding relation curve of BLER and SIR under different channel environments can be obtained, and the required signal-to-noise ratio of the HS-SCCH channel under different channel environments when BLER is 0.01 is provided in Table 1. Supposing that the calculated BLER is 0.015, the channel environment is proved to be deteriorated at this time, the original target signal-to-noise ratio cannot meet the requirement that the BLER is 0.01, the target signal-to-noise ratio of the carrier i needs to be reset to-8.61 dB from-9.40 dB, and therefore the outer loop power control of the HS-SCCH channel is completed.

And in the mode Y, if the sending end respectively carries out independent cyclic numbering on the shared channels respectively borne by the plurality of carriers by taking TTI as a unit, the receiving end uniformly carries out block loss probability statistics on the plurality of carriers.

In implementation Y, the following three implementations Y1, Y2 and Y3 are divided again:

y1, if the sending end is in the same carrier, the same number is used for the multiple shared channels in the same TTI, the receiving end respectively judges whether the number of the serial numbers meeting the continuity in the serial numbers of the shared channels received by the current TTI reaches the set threshold value or not according to the multiple carriers, if so, the channel is determined not to be lost, otherwise, the channel is determined to be lost, and the block loss probability of the multiple carriers is uniformly counted based on the judgment result.

After the receiving end uniformly performs the block loss probability statistics on the plurality of carriers, the receiving end also needs to uniformly reset the corresponding target signal-to-noise ratios on the plurality of carriers according to the obtained block loss probability.

For example: the shared channel of the control carrier i carried on the carrier i is HS-SCCH1, the shared channel of the control carrier i +2 is HS-SCCH2, the shared channel of the control carrier i +1 carried on the carrier i +1 is HS-SCCH3, and the sending end numbers in a1 mode, so that after receiving data transmitted by the sending end, the receiving end firstly performs CRC check, reads the HCSN of each HS-SCCH after passing the check, and assuming that the HCSN of the HS-SCCH1 received by the receiving end in TTI t is 0, the HCSN of the HS-SCCH2 is 0, and the HCSN of the HS-SCCH3 is 1, then:

if the HCSN of the HS-SCCH1 received by the receiving end in TTI t +2 is 1, the HCSN of the HS-SCCH2 is 1, and the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in TTI t are kept continuous, determining that the HS-SCCH is not lost by the carrier i in TTI t + 1; if the HCSN of the HS-SCCH3 received by the receiving end in the TTI t +2 is 2, and the HCSN of the HS-SCCH is continuous with the HCSN of the HS-SCCH in the TTI t, determining that the HS-SCCH is not lost by the carrier i +1 in the TTI t + 1;

if the HCSN of the HS-SCCH1 received by the receiving end in TTI t +2 is 2, the HCSN of the HS-SCCH2 is 2, and the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in TTI t are not continuous, determining that the carrier i loses the HS-SCCH in TTI t + 1; if the HCSN of the HS-SCCH3 received by the receiving end in the TTI t +2 is 3, and the HCSN of the HS-SCCH is not continuous with the HCSN of the HS-SCCH in the TTI t, determining that the carrier i +1 loses the HS-SCCH in the TTI t + 1;

then, on the carrier i, the HS-SCCH channel with HCSN of 1 is not received, the HS-SCCH channels with HCSNs of 0 and 2 are received, that is, the number of correctly received blocks is 2, the number of lost blocks is 1, on the carrier i +1, the HS-SCCH channel with HCSN of 2 is not received, the HS-SCCH channels with HCSNs of 1 and 3 are received, that is, the number of correctly received blocks is 2, the number of lost blocks is 1, at this time, on the carrier i and the carrier i +1, the number of correctly received blocks in total is 2+2 ═ 4, and the number of lost blocks is 1+1 ═ 2. And calculating to obtain the total block loss probability through continuous statistics of a period of time. Supposing that the calculated BLER is 0.015, based on Table 1, it is proved that the channel environment is deteriorated at this time, the original target SNR cannot meet the requirement that the BLER is 0.01, and the target SNR of the HS-SCCH channels of all carriers needs to be reset to-8.61 dB from-9.40 dB, thereby completing the outer loop power control of the HS-SCCH channels.

y2, if the sending end is in the same carrier, adopting different numbers for multiple shared channels in the same TTI, the receiving end respectively judges whether the numbers of all the shared channels received in the current TTI all meet the continuity for the multiple carriers, if so, the shared channel is determined not to be lost, otherwise, the shared channel is determined to be lost, and the block loss probability of the multiple carriers is uniformly counted based on the judgment result.

For example: the shared channel of the control carrier i carried on the carrier i is HS-SCCH1, the shared channel of the control carrier i +2 is HS-SCCH2, the shared channel of the control carrier i +1 carried on the carrier i +1 is HS-SCCH3, and the sending end numbers in a2 mode, so that after receiving data transmitted by the sending end, the receiving end firstly performs CRC check, reads the HCSN of each HS-SCCH after passing the check, and assuming that the HCSN of the HS-SCCH1 received by the receiving end in TTI t is 0, the HCSN of the HS-SCCH2 is 1, and the HCSN of the HS-SCCH3 is 1, then:

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 2, the HCSN of the HS-SCCH2 is 3, and the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTI t are kept continuous, determining that the HS-SCCH is not lost by the carrier i in the TTI t + 1; if the HCSN of the HS-SCCH3 received by the receiving end in the TTI t +2 is 2, and the HCSNs of the HS-SCCHs are all continuous with the HCSN of the HS-SCCH in the TTI t, determining that the HS-SCCH is not lost by the carrier i +1 in the TTI t + 1;

if the HCSN of the HS-SCCH1 received by the receiving end in TTI t +2 is 3, the HCSN of the HS-SCCH2 is 4, and the HCSN of the HS-SCCH is not continuous with the HCSN of the HS-SCCH in TTI t, determining that the carrier i loses the HS-SCCH in TTI t + 1; if the HCSN of the HS-SCCH3 received by the receiving end in the TTI t +2 is 3, and the HCSNs of the HS-SCCHs in the TTI t are not continuous, determining that the carrier i +1 loses the HS-SCCH in the TTI t + 1;

then, on the carrier i, the HS-SCCH channel with HCSN of 2 is not received, the HS-SCCH channels with HCSNs of 0, 1, 3, and 4 are received, that is, the number of correctly received blocks is 4, the number of lost blocks is 1, on the carrier i +1, the HS-SCCH channel with HCSN of 2 is not received, the HS-SCCH channels with HCSNs of 1 and 3 are received, that is, the number of correctly received blocks is 2, the number of lost blocks is 1, at this time, on the carrier i and the carrier i +1, the number of correctly received blocks in total is 4+2 ═ 6, and the number of lost blocks is 1+1 ═ 2. And calculating to obtain the block loss probability through continuous statistics of a period of time. Through simulation, a corresponding relation curve of BLER and SIR under different channel environments can be obtained. Supposing that the calculated BLER is 0.015, based on Table 1, it is proved that the channel environment is deteriorated at this time, the original target SNR cannot meet the requirement that the BLER is 0.01, and the target SNR of the HS-SCCH channels of all carriers needs to be reset to-8.61 dB from-9.40 dB, thereby completing the outer loop power control of the HS-SCCH channels.

y3, if the sending end carries out cycle numbering on the shared channels which are in different TTIs and control the same carrier in the same carrier, the receiving end respectively judges whether the number of the shared channel which is received in the current TTI and controls a certain carrier meets the continuity or not, if yes, the shared channel is determined not to be lost, otherwise, the shared channel is determined to be lost, and the block loss probability of the carriers is uniformly counted based on the judgment result.

For example: the shared channel of the control carrier i carried on the carrier i is HS-SCCH1, the shared channel of the control carrier i +2 is HS-SCCH2, the shared channel of the control carrier i +1 carried on the carrier i +1 is HS-SCCH3, and the sending end performs numbering in a3 mode, so that after receiving data transmitted by the sending end, the receiving end performs CRC (cyclic redundancy check) check first, reads the HCSN of each HS-SCCH after passing the check, and assuming that the HCSN of the HS-SCCH1 received by the receiving end in TTI t is 0, the HCSN of the HS-SCCH2 is 1, and the HCSN of the HS-SCCH3 is 1, then:

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 1, the HCSN of the HS-SCCH2 is 2, and the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTI t are kept continuous, determining that the HS-SCCH is not lost by the carrier i in the TTI t + 1; if the HCSN of the HS-SCCH3 received by the receiving end in the TTI t +2 is 2, and the HCSNs of the HS-SCCHs are all continuous with the HCSN of the HS-SCCH in the TTI t, determining that the HS-SCCH is not lost by the carrier i +1 in the TTI t + 1;

if the HCSN of the HS-SCCH1 received by the receiving end in TTI t +2 is 2, the HCSN of the HS-SCCH2 is 3, and the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in TTI t are not continuous, determining that the carrier i loses the HS-SCCH in TTI t + 1; if the HCSN of the HS-SCCH3 received by the receiving end in the TTI t +2 is 3, and the HCSNs of the HS-SCCHs in the TTI t are not continuous, determining that the carrier i +1 loses the HS-SCCH in the TTI t + 1;

then, on the carrier i, the shared channel of the carrier i is controlled, the HS-SCCH channel with the HCSN of 1 is not received, the HS-SCCH channel with the HCSN of 0 and 2 is received, that is, the number of correctly received blocks is 2, the number of lost blocks is 1, the shared channel of the carrier i +2 is controlled, the HS-SCCH channel with the HCSN of 2 is not received, the HS-SCCH channel with the HCSN of 1 and 3 is received, that is, the number of correctly received blocks is 2, the number of lost blocks is 1, at this time, the number of correctly received blocks on the carrier i is 2+2 ═ 4, and the number of lost blocks is 1+1 ═ 2. The HS-SCCH channel numbered 2 is not received on the carrier i +1, the HS-SCCH channels numbered 1 and 3 are received, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1, at this time, the number of correctly received blocks on the carrier i and the carrier i +1 is 4+2 ═ 6, and the number of lost blocks is 2+1 ═ 3. And calculating to obtain the block loss probability through continuous statistics of a period of time. Through simulation, a corresponding relation curve of BLER and SIR under different channel environments can be obtained. Supposing that the calculated BLER is 0.015, based on Table 1, it is proved that the channel environment is deteriorated at this time, the original target SNR cannot meet the requirement that the BLER is 0.01, and the target SNR of the HS-SCCH channels of all carriers needs to be reset to-8.61 dB from-9.40 dB, thereby completing the outer loop power control of the HS-SCCH channels.

And in the mode Z, if the sending end carries out joint cycle numbering on the shared channels respectively borne by the carriers by taking TTI as a unit, the receiving end carries out block loss probability statistics on the carriers in a unified way.

In implementing Z, there are three implementations of Z1, Z2, and Z3 as follows:

z1, if the sending end is in the same carrier, the same number is used for the multiple shared channels in the same TTI, the receiving end judges whether the number of the serial numbers meeting the continuity in the serial numbers of the shared channels received by the current TTI reaches the set threshold value or not, if yes, the channel is determined not to be lost, otherwise, the channel is determined to be lost, and the probability of the lost blocks of the multiple carriers is uniformly counted based on the judgment result.

For example: the shared channel of the control carrier i carried on the carrier i is HS-SCCH1, the shared channel of the control carrier i +2 is HS-SCCH2, the shared channel of the control carrier i +1 carried on the carrier i +1 is HS-SCCH3, and the sending end numbers in a b1 mode, so that after receiving data transmitted by the sending end, the receiving end firstly performs CRC check, reads the HCSN of each HS-SCCH after passing the check, and assuming that the HCSN of the HS-SCCH1 received by the receiving end in TTI t is 0, the HCSN of the HS-SCCH2 is 0, and the HCSN of the HS-SCCH3 is 0, then:

if the HCSN of the HS-SCCH1 received by the receiving end in TTI t +2 is 1 and the HCSN of the HS-SCCH2 is 1, if the HCSN of the HS-SCCH3 received by the receiving end in TTI t +2 is 1, and the HCSN of the HS-SCCH is continuous with the HCSN of the HS-SCCH in TTI t, determining that the HS-SCCH is not lost in TTI t + 1;

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 2, the HCSN of the HS-SCCH2 is 2, the HCSN of the HS-SCCH3 is 2, and the HCSNs of the HS-SCCHs and the HCSN of the HS-SCCH in the TTI t are not continuous, determining that the HS-SCCH is lost in the TTI t + 1;

then, the HS-SCCH channel with HCSN of 1 is not received, the HS-SCCH channels with HCSNs of 0 and 2 are received, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1, and the block loss probability is calculated through continuous statistics for a period of time. Through simulation, a corresponding relation curve of BLER and SIR under different channel environments can be obtained. Supposing that the calculated BLER is 0.015, based on Table 1, it is proved that the channel environment is deteriorated at this time, the original target SNR cannot meet the requirement that the BLER is 0.01, and the target SNR of the HS-SCCH channels of all carriers needs to be reset to-8.61 dB from-9.40 dB, thereby completing the outer loop power control of the HS-SCCH channels.

z2, if the sending end is in the same carrier, adopting different numbers for multiple shared channels in the same TTI, the receiving end judges whether the numbers of all the shared channels received in the current TTI all meet the continuity for the multiple carriers, if so, the receiving end determines that the shared channels are not lost, otherwise, the receiving end determines that the shared channels are lost, and the block loss probability of the multiple carriers is uniformly counted based on the judgment result.

For example: the shared channel of the control carrier i carried on the carrier i is HS-SCCH1, the shared channel of the control carrier i +2 is HS-SCCH2, the shared channel of the control carrier i +1 carried on the carrier i +1 is HS-SCCH3, and the sending end numbers in a b2 mode, so that after receiving data transmitted by the sending end, the receiving end firstly performs CRC check, reads the HCSN of each HS-SCCH after passing the check, and assuming that the HCSN of the HS-SCCH1 received by the receiving end in TTI t is 0, the HCSN of the HS-SCCH2 is 1, and the HCSN of the HS-SCCH3 is 2, then:

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 3, the HCSN of the HS-SCCH2 is 4, the HCSN of the HS-SCCH3 is 5, and the HCSNs of the HS-SCCHs in the TTI t are all kept continuous, determining that the HS-SCCH is not lost in the TTI t + 1;

if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 5, the HCSN of the HS-SCCH2 is 6, the HCSN of the HS-SCCH3 is 7, and the HCSNs of the HS-SCCHs and the HCSN of the HS-SCCH in the TTI t are not continuous, determining that the HS-SCCH is lost in the TTI t + 1;

then, HS-SCCH channels with HCSNs 3, 4 are not received, HS-SCCH channels with

HCSNs

0, 1, 2, 5, 6, 7 are received, i.e., the number of correctly received blocks is 6, and the number of lost blocks is 2. And calculating to obtain the block loss probability through continuous statistics of a period of time. Through simulation, a corresponding relation curve of BLER and SIR under different channel environments can be obtained. Supposing that the calculated BLER is 0.015, based on Table 1, it is proved that the channel environment is deteriorated at this time, the original target SNR cannot meet the requirement that the BLER is 0.01, and the target SNR of the HS-SCCH channels of all carriers needs to be reset to-8.61 dB from-9.40 dB, thereby completing the outer loop power control of the HS-SCCH channels.

z3, if the sending end is in the same carrier, the sending end carries out cycle numbering for the shared channel which is in different TTI and controls the same carrier, the receiving end judges whether the number of the shared channel which is received in the current TTI and controls a certain carrier meets the continuity or not, if yes, the shared channel is determined not to be lost, otherwise, the shared channel is determined to be lost, and the block loss probability of the carriers is uniformly counted based on the judgment result.

For example: the shared channel of the control carrier i borne on the carrier i is HS-SCCH1, the shared channel of the control carrier i +2 is HS-SCCH2, the shared channel of the control carrier i +1 borne on the carrier i +1 is HS-SCCH3, the shared channel of the control carrier i +2 is HS-SCCH4, and the sending end carries out numbering in a b3 mode, then, after receiving data transmitted by the sending end, the receiving end firstly carries out CRC check, reads the HCSN of each HS-SCCH after passing the check, and supposing that the HCSN of the HS-SCCH1 received by the receiving end in TTI t is 0, the HCSN of the HS-SCCH2 is 1, the HCSN of the HS-SCCH4 is 2, and the HCSN of the HS-SCCH3 is 1, then:

and if the HCSN of the HS-SCCH1 received by the receiving end in the TTI t +2 is 1, and the HCSN keeps continuous with the HCSN of the HS-SCCH in the TTI t, determining that the shared channel HS-SCCH of the control carrier i is not lost in the TTI t + 1. And the HCSN of the HS-SCCH2 is 2, the HCSN of the HS-SCCH4 is 3, and the HCSN keeps continuous with the HCSN of the HS-SCCH in the TTI t, so that the HS-SCCH channel of the control carrier i +2 is determined not to be lost in the TTI t + 1. And the HCSN of the HS-SCCH3 is 2, and the HCSN is continuous with the HCSN of the HS-SCCH in the TTI t, so that the HS-SCCH channel of the control carrier i +1 is determined not to be lost in the TTI t + 1.

If the HCSN of the HS-SCCH1 received by the receiving end in TTI t +2 is 2, the HCSN of the HS-SCCH2 is 3, the HCSNs of the two HS-SCCHs and the HCSN of the HS-SCCH in TTI t are not continuous, the HCSN of the HS-SCCH3 is 3, and the HCSN of the HS-SCCH in TTI t are not continuous, determining that the HS-SCCH is lost in TTI t + 1;

then, the shared channel of the control carrier i does not receive the HS-SCCH channel with HCSN of 1, the HS-SCCH channels with HCSNs of 0 and 2 are received, that is, the number of correctly received blocks is 2, the number of lost blocks is 1, the shared channel of the control carrier i +2, the HS-SCCH channel with HCSN of 2 is not received, the HS-SCCH channels with HCSNs of 1 and 3 are received, that is, the number of correctly received blocks is 2, the number of lost blocks is 1, the shared channel of the control carrier i +1, the HS-SCCH channel with HCSN of 2 is not received, the HS-SCCH channels with HCSNs of 1 and 3 are received, that is, the number of correctly received blocks is 2, the number of lost blocks is 1, at this time, the number of correctly received blocks on the carrier i and the carrier i +1 is 2+2+ 6, and the number of lost blocks is 1+1+ 1+ 3. And calculating to obtain the block loss probability through continuous statistics of a period of time. Through simulation, a corresponding relation curve of BLER and SIR under different channel environments can be obtained. Supposing that the calculated BLER is 0.015, based on Table 1, it is proved that the channel environment is deteriorated at this time, the original target SNR cannot meet the requirement that the BLER is 0.01, and the target SNR of the HS-SCCH channels of all carriers needs to be reset to-8.61 dB from-9.40 dB, thereby completing the outer loop power control of the HS-SCCH channels.

In summary, in the embodiments of the present invention, a cyclic numbering method for a shared channel at a sending end is provided for a multi-carrier system, and according to different cyclic numbering methods, a receiving end counts a block loss probability by judging whether numbering is continuous, and adjusts a target signal-to-noise ratio, thereby completing an outer loop power control method for the shared channel of the multi-carrier system, thereby achieving accurate and effective outer loop power control in the multi-carrier system and improving system performance.

Referring to fig. 9, in the embodiment of the present invention, the indication system for power control includes a transmitting end and a receiving end, wherein,

the sending end is used for determining a plurality of carriers needed to be used for transmitting data, circularly numbering the shared channels carried by the carriers by taking TTI as a unit, transmitting the numbers of the shared channels to the receiving end by utilizing the carriers, and indicating the receiving end to execute corresponding power control according to the continuity of the numbers of the shared channels.

And the receiving end is used for receiving the serial numbers of the shared channels sent by the sending end in the mode, counting the block loss probability of the carriers according to the continuity of the serial numbers of the shared channels by taking TTI as a unit, and resetting the target signal-to-noise ratios of the carriers based on the counted block loss probability of the carriers.

Referring to fig. 10, in an embodiment of the present invention, an apparatus for power control, i.e., a transmitting end, includes a determining unit 10, a numbering unit 11, and a communication unit 12, wherein,

a determining unit 10, configured to determine a plurality of carriers to be used for transmitting data;

a numbering unit 11, configured to circularly number, in units of TTIs, shared channels carried by the multiple carriers, respectively;

a communication unit 12, configured to transmit the number of each shared channel to the receiving end by using the plurality of carriers, and instruct the receiving end to perform corresponding power control according to the continuity of the number of each shared channel.

Referring to fig. 11, in an embodiment of the present invention, an apparatus for power control, i.e. a receiving end, includes a communication unit 20, a statistics unit 21, and a processing unit 22, wherein,

a communication unit 20, configured to receive the numbers of the shared channels sent by the sending end;

a counting unit 21 configured to count, in units of TTIs, block loss probabilities of the plurality of carriers according to continuity of numbers of the shared channels;

and the processing unit 22 is configured to reset the target signal-to-noise ratios of the multiple carriers based on the statistical block loss probabilities of the multiple carriers.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method of power control, comprising:

the sending end carries out cyclic numbering on the shared channels respectively borne by the multiple carriers by taking a Transmission Time Interval (TTI) as a unit;

2. The method of claim 1, wherein the transmitting end performs cyclic numbering on the shared channels carried by the carriers respectively in units of TTIs, and the method comprises:

taking TTI as a unit, and respectively carrying out independent cyclic numbering on the shared channel borne by each carrier; or,

and performing joint cycle numbering on the shared channels respectively borne by the multiple carriers by taking TTI as a unit.

3. The method of claim 2, wherein when the sending end performs independent cyclic numbering for the shared channels carried by each carrier in units of TTIs, the method includes:

in the same carrier, a plurality of shared channels in the same TTI adopt the same number; or

In the same carrier, adopting different numbers for a plurality of shared channels in the same TTI; or

Within the same carrier, cyclic numbering is performed for shared channels in different TTIs but controlling the same carrier.

4. The method of claim 2, wherein the joint cycle numbering, by the transmitting end, of the shared channels carried by the carriers respectively in units of TTIs includes:

among a plurality of carriers, a plurality of shared channels in the same TTI adopt the same number; or

Among a plurality of carriers, a plurality of shared channels in the same TTI adopt different numbers; or

Among the multiple carriers, cyclic numbering is performed for shared channels in different TTIs but controlling the same carrier.

5. The method according to claim 3 or 4, wherein the sending end performs cyclic numbering according to the sequence of the channelization codes used by each shared channel from low to high when different numbers are used for multiple shared channels in the same TTI within the same carrier or among multiple carriers, or according to the sequence of the frequencies of the carriers controlled by each shared channel from low to high.

6. The method according to any of claims 1-4, wherein the shared channel is an enhanced uplink dedicated channel absolute grant channel, E-AGCH, or a shared control channel, HS-SCCH, of a high speed downlink shared channel.

7. The method of any of claims 1-4, wherein the transmitting end is a base station or a user terminal.

8. The method according to any of claims 2-4, wherein the transmitting end further comprises before determining a plurality of carriers to be used for transmitting data;

and adopting a high-level signaling, a physical signaling or a protocol standard and a receiving end to pre-agree a cycle numbering mode of the shared channel.

9. A method of power control, comprising:

the receiving end receives the serial numbers of the shared channels sent by the sending end by adopting the method of claim 1;

the receiving end takes a transmission time interval TTI as a unit, and counts the block loss probability of the multiple carriers according to the continuity of the serial numbers of the shared channels;

10. The method of claim 9, wherein the receiving end counts the block loss probability of the multiple carriers according to the continuity of the number of each shared channel carried by the multiple carriers, and comprises:

if the sending end respectively carries out independent cyclic numbering on the shared channel borne by each carrier by taking TTI as a unit, the receiving end respectively carries out block loss probability statistics on the plurality of carriers; or,

if the sending end respectively carries out independent cyclic numbering on the shared channel borne by each carrier by taking TTI as a unit, the receiving end uniformly carries out block loss probability statistics on the plurality of carriers; or

And if the sending end carries out joint cycle numbering aiming at the shared channels respectively borne by the plurality of carriers by taking TTI as a unit, the receiving end carries out block loss probability statistics aiming at the plurality of carriers in a unified way.

11. The method of claim 10, wherein if the sender performs independent cyclic numbering for the shared channel carried by each carrier in units of TTIs, the receiving end performs block loss probability statistics for the multiple carriers, respectively, comprising:

if a sending end is in the same carrier wave, a plurality of shared channels in the same TTI adopt the same number, the receiving end respectively judges whether the number of serial numbers meeting continuity in the number of the shared channels received by the current TTI reaches a set threshold value or not according to the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carrier waves is respectively counted based on the judgment result; or

If a sending end is in the same carrier wave, a plurality of shared channels in the same TTI adopt different numbers, the receiving end respectively judges whether the numbers of all the shared channels received in the current TTI meet the continuity aiming at the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carrier waves is respectively counted based on the judgment result; or

If the sending end carries out cyclic numbering on the shared channels which are in different TTI and control the same carrier in the same carrier, the receiving end respectively judges whether the number of the shared channel which is received in the current TTI and controls a certain carrier meets the continuity or not, if so, the shared channel is determined not to be lost, otherwise, the shared channel is determined to be lost, and the block loss probability of the carriers is respectively counted based on the judgment result.

12. The method of claim 11, wherein after performing the block loss probability statistics on the plurality of carriers, the receiving end resets corresponding target snrs for the plurality of carriers according to the respective block loss probabilities of the plurality of carriers.

13. The method of claim 10, wherein if the transmitting end has a unit of TTI,

and respectively carrying out independent cyclic numbering on the shared channel borne by each carrier, and then uniformly carrying out block loss probability statistical timing on the plurality of carriers by a receiving end, wherein the method comprises the following steps:

if a sending end is in the same carrier wave, a plurality of shared channels in the same TTI adopt the same serial number, the receiving end respectively judges whether the serial number meeting continuity in the serial numbers of the shared channels received by the current TTI reaches a set threshold value or not according to the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the probability of lost blocks of the plurality of carrier waves is uniformly counted based on the judgment result; or

If a sending end is in the same carrier wave, a plurality of shared channels in the same TTI adopt different numbers, the receiving end respectively judges whether the numbers of all the shared channels received in the current TTI meet the continuity aiming at the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carrier waves is uniformly counted based on the judgment result; or

If the sending end carries out cyclic numbering on the shared channels which are in different TTI and control the same carrier in the same carrier, the receiving end respectively judges whether the number of the shared channel which is received in the current TTI and controls a certain carrier meets the continuity or not for the multiple carriers, if so, the shared channel is determined not to be lost, otherwise, the shared channel is determined to be lost, and the block loss probability of the multiple carriers is uniformly counted based on the judgment result.

14. The method of claim 13, wherein after the receiving end performs the statistics of the block loss probability for the plurality of carriers uniformly, the receiving end uniformly resets the corresponding target snr for the plurality of carriers according to the obtained block loss probability.

15. The method of claim 10, wherein if the sender performs joint cycle numbering on the shared channels carried by the carriers in units of TTIs, the receiving end performs block loss probability statistics on the carriers in a unified manner, including:

if the sending end is in the same carrier wave, the same number is adopted by a plurality of shared channels in the same TTI, the receiving end judges whether the number of serial numbers meeting the continuity in the serial numbers of the shared channels received by the current TTI reaches a set threshold value or not aiming at the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carrier waves is uniformly counted based on the judgment result; or

If the sending end is in the same carrier wave, the plurality of shared channels in the same TTI adopt different numbers, the receiving end judges whether the numbers of all the shared channels received in the current TTI meet the continuity aiming at the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carrier waves is uniformly counted based on the judgment result; or

If the sending end carries out cyclic numbering on shared channels which are in different TTI and control the same carrier in the same carrier, the receiving end judges whether the number of the shared channel which is received in the current TTI and controls a certain carrier meets the continuity or not according to the plurality of carriers, if so, the shared channel is determined not to be lost, otherwise, the shared channel is determined to be lost, and the probability of block loss of the plurality of carriers is uniformly counted based on the judgment result.

16. The method of claim 15, wherein after the receiving end performs the statistics of the block loss probability for the plurality of carriers uniformly, the receiving end uniformly resets the corresponding target snr for the plurality of carriers according to the obtained block loss probability.

17. The method according to any of claims 9-16, wherein the shared channel is an enhanced uplink dedicated channel absolute grant channel, E-AGCH, or a shared control channel of a high speed downlink shared channel, HS-SCCH.

18. The method according to any of claims 9-16, wherein the receiving end is a base station or a user terminal.

19. The method of claim 17, wherein the transmitting end and the receiving end pre-agree on a cyclic numbering scheme of the shared channel using higher layer signaling, physical signaling, or a protocol standard.

20. An apparatus for power control, comprising:

a numbering unit, configured to circularly number, in units of transmission time intervals TTI, shared channels carried by the multiple carriers, respectively;

21. The apparatus according to claim 20, wherein the numbering unit performs, in units of TTIs, independent cyclic numbering for the shared channels carried by each of the carriers, in units of TTIs, when cyclically numbering the shared channels carried by each of the plurality of carriers; or, performing joint cycle numbering on the shared channels carried by the plurality of carriers by taking TTI as a unit.

22. The apparatus of claim 21, wherein the numbering unit, when performing independent cyclic numbering on the shared channels carried by each carrier in units of TTIs, adopts the same number for a plurality of shared channels in the same TTI within the same carrier; or, in the same carrier, adopting different numbers for a plurality of shared channels in the same TTI; alternatively, within the same carrier, the cyclic numbering is performed for the shared channels in different TTIs but controlling the same carrier.

23. The apparatus of claim 21, wherein the numbering unit is configured to, when performing joint cyclic numbering on the shared channels carried by the carriers in units of TTIs, assign the same number to the shared channels in the same TTI among the carriers; or, between a plurality of carriers, adopting different numbers for a plurality of shared channels in the same TTI; alternatively, among a plurality of carriers, cyclic numbering is performed for shared channels that control the same carrier but at different TTIs.

24. The apparatus according to claim 22 or 23, wherein the numbering unit performs cyclic numbering according to an order of channelization codes used by each shared channel from low to high or according to an order of frequencies of carriers controlled by each shared channel from low to high when different numbers are used for a plurality of shared channels in the same TTI within the same carrier or among a plurality of carriers.

25. The apparatus of claim 22 or 23, wherein the apparatus is a base station or a user terminal.

26. An apparatus for power control, comprising:

a communication unit for receiving the number of each shared channel transmitted by the apparatus according to claim 20;

a statistic unit, configured to count block loss probabilities of the multiple carriers according to continuity of numbers of the shared channels in units of Transmission Time Intervals (TTIs);

27. The apparatus according to claim 26, wherein when the counting unit counts the block loss probabilities of the multiple carriers according to the continuity of the numbers of the shared channels carried by the multiple carriers, if the sending end performs independent cyclic numbering on the shared channels carried by each carrier in units of TTIs, the counting unit performs block loss probability counting on the multiple carriers; or, if the sending end uses TTI as a unit, and performs independent cyclic numbering for the shared channel carried by each carrier, the counting unit performs block loss probability counting for the plurality of carriers in a unified manner; or, if the sending end performs joint cycle numbering on the shared channels carried by the multiple carriers by using the TTI as a unit, the counting unit performs block loss probability counting on the multiple carriers in a unified manner.

28. The apparatus of claim 27, wherein if the sender performs independent cyclic numbering on the shared channel carried by each carrier in units of TTIs, the counting unit performs block loss probability counting on the plurality of carriers, respectively, and includes:

if the sending end is in the same carrier, the same number is adopted by a plurality of shared channels in the same TTI, the statistical unit respectively judges whether the number of serial numbers meeting continuity in the serial numbers of the shared channels received by the current TTI reaches a set threshold value or not according to the plurality of carriers, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carriers is respectively counted based on the judgment result; or

If the sending end is in the same carrier, the plurality of shared channels in the same TTI adopt different numbers, the statistical unit respectively judges whether the numbers of all the shared channels received in the current TTI meet the continuity aiming at the plurality of carriers, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carriers is respectively counted based on the judgment result; or

If the sending end carries out cyclic numbering on the shared channels which are in different TTI and control the same carrier in the same carrier, the counting unit respectively judges whether the number of the shared channel which is received in the current TTI and controls a certain carrier meets the continuity or not, if so, the sharing channel is determined not to be lost, otherwise, the sharing channel is determined to be lost, and the block loss probability of the carriers is respectively counted based on the judgment result.

29. The apparatus of claim 28, wherein after the statistics unit performs the block loss probability statistics on the plurality of carriers, the processing unit resets the corresponding target snrs for the plurality of carriers according to the respective block loss probabilities of the plurality of carriers.

30. The apparatus of claim 27, wherein if a transmitter performs independent cyclic numbering on the shared channels carried by each carrier in units of TTIs, the counting unit performs block loss probability statistics on the multiple carriers collectively, and the method comprises:

if the sending end is in the same carrier wave, the same number is adopted by a plurality of shared channels in the same TTI, the statistical unit respectively judges whether the number of serial numbers meeting continuity in the serial numbers of the shared channels received by the current TTI reaches a set threshold value or not according to the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carrier waves is uniformly counted based on the judgment result; or

If the sending end is in the same carrier wave, the plurality of shared channels in the same TTI adopt different numbers, the statistical unit respectively judges whether the numbers of all the shared channels received in the current TTI meet the continuity aiming at the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carrier waves is uniformly counted based on the judgment result; or

If the sending end carries out cyclic numbering on the shared channels which are in different TTI and control the same carrier in the same carrier, the counting unit respectively judges whether the number of the shared channel which is received in the current TTI and controls a certain carrier meets the continuity or not, if so, the sharing channel is determined not to be lost, otherwise, the sharing channel is determined to be lost, and the block loss probability of the carriers is uniformly counted based on the judgment result.

31. The apparatus of claim 30, wherein after the statistical unit performs the statistics of the block loss probability for the plurality of carriers, the processing unit resets the corresponding target snr for the plurality of carriers according to the obtained block loss probability.

32. The apparatus of claim 27, wherein if a transmitter performs joint cycle numbering on shared channels carried by the carriers in units of TTIs, the statistical unit performs the probability statistics of lost blocks for the carriers in a unified manner, comprising:

if the sending end is in the same carrier wave, the same number is adopted by a plurality of shared channels in the same TTI, the statistical unit judges whether the number of serial numbers meeting continuity in the serial numbers of the shared channels received by the current TTI reaches a set threshold value or not according to the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carrier waves is uniformly counted based on the judgment result; or

If the sending end is in the same carrier wave, the plurality of shared channels in the same TTI adopt different numbers, the statistical unit judges whether the numbers of all the shared channels received in the current TTI all meet the continuity aiming at the plurality of carrier waves, if so, the shared channels are determined not to be lost, otherwise, the shared channels are determined to be lost, and the block loss probability of the plurality of carrier waves is uniformly counted based on the judgment result; or

If the sending end carries out cyclic numbering on the shared channels which are in different TTI and control the same carrier in the same carrier, the counting unit judges whether the number of the shared channel which is received in the current TTI and controls a certain carrier meets the continuity or not according to the plurality of carriers, if so, the sharing channel is determined not to be lost, otherwise, the sharing channel is determined to be lost, and the block loss probability of the plurality of carriers is uniformly counted based on the judgment result.

33. The apparatus of claim 32, wherein after the statistical unit performs the statistics of the block loss probability for the plurality of carriers, the processing unit resets the corresponding target snr for the plurality of carriers according to the obtained block loss probability.

34. The apparatus according to any of claims 26-33, wherein the apparatus is a base station or a user terminal.

35. A power control system comprises a transmitting end and a receiving end, wherein,

the sending end is used for determining a plurality of carriers needed to be used for transmitting data, circularly numbering the shared channels respectively borne by the carriers by taking a transmission time interval TTI as a unit, transmitting the numbers of the shared channels to the receiving end by utilizing the carriers, and indicating the receiving end to execute corresponding power control according to the continuity of the numbers of the shared channels.

36. A power control system comprises a transmitting end and a receiving end, wherein,

the receiving end, configured to receive the number of each shared channel sent by the sending end according to claim 35, and count the block loss probability of the multiple carriers according to the continuity of the number of each shared channel in units of TTI (transmission time interval), and reset the target snr of the multiple carriers based on the counted block loss probability of the multiple carriers.