WO2012000453A1 - 一种功率控制的方法、装置及系统 - Google Patents
一种功率控制的方法、装置及系统 Download PDFInfo
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- WO2012000453A1 WO2012000453A1 PCT/CN2011/076760 CN2011076760W WO2012000453A1 WO 2012000453 A1 WO2012000453 A1 WO 2012000453A1 CN 2011076760 W CN2011076760 W CN 2011076760W WO 2012000453 A1 WO2012000453 A1 WO 2012000453A1
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- shared channel
- tti
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- multiple carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/12—Outer and inner loops
Definitions
- the invention relates to a Chinese patent application filed on July 1, 2010 by the Chinese Patent Office, the application number is 201010223913.1, and the invention is entitled "a method, device and system for power control”. Priority is hereby incorporated by reference in its entirety.
- the present invention relates to the field of communications, and in particular, to a method, device and system for power control. Background technique
- Power control is a fundamental concept in cellular mobile communications. Since the Code Division Multiple Access (CDMA) system is a system with limited interference, it is very sensitive to the transmission power of the signal and the variation of the channel characteristics. Therefore, in order to effectively control inter-user interference, improve power utilization, thereby improving user capacity and call quality of the entire system, and more effectively utilizing radio resources, power control becomes an indispensable important means.
- CDMA Code Division Multiple Access
- Power control is divided into two categories: open loop power control and closed loop power control according to whether the mobile station and the base station participate simultaneously.
- the closed-loop power control refers to the process in which the transmitting end controls the transmitting power according to the feedback information sent by the receiving end; and the open-loop power control does not require the feedback from the receiving end, and the transmitting end controls the transmitting power according to the information obtained by the transmitting end.
- Closed loop power control can be divided into inner loop power control and outer loop power control.
- the inner loop power control mainly determines the power adjustment step by comparing the received signal to noise ratio with the target signal to noise ratio.
- the outer loop power control updates the target signal-to-noise ratio according to the QoS (Quality of Service) or Block Error Rate (BLER) requirements of the service. Since the target SNR value required to meet the QoS requirements is different in different wireless channel environments, and since the channel environment is constantly changing, it is difficult to obtain a universal target SNR value, so the outer loop power control is added. .
- the receiving end detects the block error rate (BLER) of the code block, and updates the target SNR value according to the detection result. If the block error rate is lower than the QoS requirement, the controller reduces the target SNR value. Conversely, increase the target SNR value.
- BLER block error rate
- E-DCH Enhanced Dedicated Channel
- E-AGCH Absolute Grant Channel
- shared control channel for the high-speed downlink shared channel Shared Control Channel for In the channel transmission information of the HS-DSCH (High Speed Downlink Shared Channel), HS-SCCH
- the UE-ID identity
- the function of the CRC check is jointly performed by performing an exclusive-OR operation on the UE-ID and the Cyclic Redundancy Check (CRC). There are two reasons for the CRC check error at this time.
- E-AGCH Cyclic Sequence Number ECSN
- HS-SCCH Cyclic Sequence Number HSSN
- the transmitting end sets a cyclic sequence number according to the sending time of the E-AGCH/HS-SCCH transmission information, and the receiving end determines whether the E-AGCH/HS-SCCH channel transmission information is lost according to the continuity of the received ECSN/HSCN. That is, when the CRC check is correct, the current ECSN/HCSN is read, and compared with the previous ECSN/HCSN, it is judged whether the cycle is continuous. If it is not continuous, the lost E-AGCH can be counted according to the difference of the numbers. /HS-SCCH channel number, and then calculate the BLER of the shared channel for a period of time, thereby updating the set target signal-to-noise ratio to achieve the purpose of outer loop power control. It can be seen that in the current standard, ECSN/HCSN becomes the only means of statistical channel BLER due to the channel format of the E-AGCH/HS-SCCH channel.
- the transmitting end supporting the single carrier technology can only transmit and receive information on one carrier. Therefore, the E-AGCH/HS-SCCH channel is carried on the same carrier as its scheduled traffic channel, and within any Transmission Time Interval (TTI), the receiving end only accepts the scheduling of one shared channel.
- TTI Transmission Time Interval
- the setting of the single carrier ECSN/HCSN is only for the E-AGCH/HS-SCCH channel on one carrier, and is cyclically numbered according to the transmission time.
- the receiving end has the capability of receiving multiple carriers at the same time, and the HS-SCCH channels controlling the high-speed physical downlink shared channel (HS-PDSCH) of all carriers can be configured on one carrier.
- the shared channel that schedules a certain carrier may not be carried on the carrier.
- the base station can schedule for multiple carriers within the same TTI.
- the terminal can transmit and receive information on multiple carriers.
- the E-AGCH channel of each carrier is distributed on the E-PUCH (Enhanced Physical Uplink Channel) carrier controlled by the channel (many-to-many mode), and the base station can schedule multiple carriers in the same TTI. This is quite different from the case of a single carrier system. Therefore, the method of in-loop power control provided by the prior art is obviously not applicable to a multi-carrier system.
- E-PUCH Enhanced Physical Uplink Channel
- Embodiments of the present invention provide a method, an apparatus, and a system for power control, which are used to implement accurate numbering of shared channels for a multi-carrier system, thereby implementing corresponding power control.
- a method of power control comprising:
- the transmitting end determines a plurality of carriers to be used for transmitting data
- the transmitting end cyclically numbers the shared channel carried by the multiple carriers in units of TTIs;
- the transmitting end transmits the number of each shared channel to the receiving end by using the multiple carriers, and instructs the receiving end to perform corresponding power control according to the continuity of the numbers of the shared channels.
- a method of power control comprising:
- the receiving end receives the number of each shared channel sent by the transmitting end by using the above method
- the receiving end counts the multiple carriers according to the continuity of the number of each shared channel in units of TTI.
- Block error rate
- the receiving end resets the target signal to noise ratio of the plurality of carriers based on the statistical block error rate of the plurality of carriers.
- a power control device comprising:
- a determining unit configured to determine a plurality of carriers to be used for transmitting data
- a numbering unit configured to cyclically number the shared channels carried by the multiple carriers in units of TTIs
- a communication unit configured to transmit, by using the multiple carriers, a number of each shared channel to the receiving end, and then B
- the receiving end performs corresponding power control according to the continuity of the number of each shared channel.
- a power control device comprising:
- a communication unit configured to receive a number of each shared channel sent by the foregoing device
- a statistical unit configured to calculate a block error rate of the multiple carriers according to continuity of numbers of the shared channels in units of TTIs
- a processing unit configured to reset a target signal to noise ratio of the multiple carriers based on a statistical block error rate of the multiple carriers.
- a power control system includes a transmitting end and a receiving end, wherein
- the transmitting end is configured to determine a plurality of carriers to be used for transmitting data, and cyclically number the shared channels respectively carried by the multiple carriers in units of TTIs, and use the multiple carriers to use the shared channels.
- the number is transmitted to the receiving end, and the receiving end is instructed to perform corresponding power control according to the continuity of the number of each shared channel.
- a power control system includes a transmitting end and a receiving end, wherein
- the receiving end is configured to receive a number of each shared channel sent by the sending end, and calculate, according to the continuity of the number of each shared channel, a block error rate of the multiple carriers, and a statistical basis. Determining a block error rate of the plurality of carriers, and resetting a target signal to noise ratio of the plurality of carriers.
- the system for the increasingly complex channel configuration such as multi-carrier does not provide a clear method.
- the loop of the transmitting end for the shared channel is proposed.
- the receiving end determines whether the number is continuous, statistically corrects the block rate, adjusts the target signal-to-noise ratio, thereby completing the outer loop power control method of the shared channel of the multi-carrier system, and further, in the multi-carrier system Accurate and effective outer loop power control is achieved, which improves system performance.
- FIG. 1 is a flowchart of a power control indication performed by a transmitting end according to an embodiment of the present invention
- FIG. 2 to FIG. 7 are schematic diagrams showing the cyclic numbering of each shared channel carried by a plurality of carriers by a transmitting end according to an embodiment of the present invention
- FIG. 8 is a flowchart of power control performed by a receiving end according to an indication of a transmitting end according to an embodiment of the present invention
- FIG. 9 is a system architecture diagram of power control according to an embodiment of the present invention.
- FIG. 10 is a structural diagram of a function of a transmitting end according to an embodiment of the present invention.
- FIG. 11 is a structural diagram of a function of a receiving end according to an embodiment of the present invention. detailed description
- the transmitting end often uses a method of adding a cyclic sequence number to the transmission information of the shared channel, and assists the receiving end to perform power control.
- Multi-carrier High Speed Downlink Packet Access (MC-HSDPA) and Multi-carrier High Speed Downlink Packet Access (MC-) Access methods such as HSUPA
- MC-HSDPA Multi-carrier High Speed Downlink Packet Access
- HSUPA Multi-carrier High Speed Downlink Packet Access
- the existing cyclic numbering method for the shared channel under the single carrier does not achieve the purpose of power control of the auxiliary receiving end. Therefore, in the embodiment of the present invention, a new transmitting end is used for the multi-carrier system.
- the cyclic numbering method for the shared channel is used to assist the receiving end to complete power control.
- the so-called shared channel may be E-AGCH or HS-SCCH, or may be other types.
- Shared channel the common feature of such a shared channel is that the UE-ID is implicitly included in the cyclic redundancy check code (CRC) check information. Therefore, the receiving end can only be assisted by cyclically numbering the shared channel.
- the statistical block error rate (BLER) is used to achieve the purpose of power control.
- the transmitting end may be a base station or a terminal.
- the receiving end may be a terminal or a base station.
- the two parties may use high-level signaling and physical signaling. Or the protocol standard pre-agreed the loop numbering mode of the shared channel.
- the sending end numbers the shared channels carried on the multiple carriers to perform power control indication on the receiving end.
- the sending end performs numbering based on the shared channels carried by multiple carriers.
- the detailed flow of the power control indication at the receiving end is as follows:
- Step 100 The sender determines multiple carriers to use to transmit data.
- Step 110 The transmitting end performs cyclic numbering on the shared channel carried by each of the multiple carriers in units of TTI.
- Step 120 The transmitting end transmits the number of each shared channel to the receiving end by using the multiple carriers, and instructs the receiving end to perform corresponding power control according to the continuity of the number of each shared channel.
- the transmitting end transmits data to the receiving end through each shared channel carried by multiple carriers, and since the number of each shared channel is carried in the channel transmission information of the transmitted channel as part of the channel format, the receiving end receives the data. At the same time as the data transmitted by the transmitting end through each shared channel, the number of each shared channel is also received.
- the method when the sending end performs step 110, the method includes, but is not limited to, the following methods A and B:
- the shared channel carried by each carrier is separately numbered in a TTI; that is, in a plurality of carriers, each time a TTI is reached, the shared channels carried by the multiple carriers are independently numbered cyclically.
- the implementation mode A it is preferable to use any of the following three implementation modes: a1, a2, and a3: al.
- multiple shared channels in the same TTI are used with the same number, that is, in the same TTI.
- each shared channel is consecutively numbered in units of TTI.
- the number of the shared channel of the control carrier i carried by the carrier i is 0; in TTI t + 1, the shared channel and the control carrier of the control carrier i + 1 carried by the carrier i
- the shared channel of i + 2 and the shared channel of control carrier i + 3 are both numbered 1; in TTI t + 2, the shared channel of control carrier i carried by carrier i and the shared channel of control carrier i + 1 are numbered 2 .
- the number of the shared channel carried by the other carriers is the same as that of the carrier i, and is not described here.
- the maximum number of each shared channel is L (L is a preset natural number), and is filled in the channel transmission information (for example, format) of the shared channel.
- L is a preset natural number
- the same method is used to carry the number of the shared channel. No longer.
- multiple shared channels in the same TTI are numbered differently, that is, in the same frame, multiple shared channels carried by the same carrier are numbered differently, in this case, for the same carrier
- the number of the shared channel in the continuous TTI is consecutive and different numbers are used.
- the number of the shared channel of the control carrier i carried by carrier i is 0; in TTI t + 1, the shared channel number of the control carrier i + 1 carried by carrier i is 1
- the shared channel number of the control carrier i + 2 is 2, and the shared channel number of the control carrier i + 3 is 3; in TTI t + 2, the shared channel number of the control carrier i carried by the carrier i is 4, and the control carrier i
- the shared channel number of + 1 is 5.
- the shared channel carried by other carriers is numbered in the same manner as carrier i, and will not be described here.
- the number of the shared channels carried by the same carrier in the same TTI is cyclically numbered in descending order of the channelization codes used for the shared channels, or The cyclic number is performed in descending order of the frequency of the carrier controlled by each shared channel.
- A3 In the same carrier, perform cyclic numbering for the shared channel that controls the same carrier in different TTIs, that is, in different TTIs, cyclically number the shared channels that are controlled by the same carrier and control the same carrier.
- the shared channel of the control carrier i carried by the carrier i is numbered 0, 1, 2 in TTI t, TTI t + 1 and TTI t + 2, respectively, and the carrier-controlled carrier i + 1 Total
- the channel is numbered 0 and 1 in TTI t + 1 and TTI t + 2, respectively, and their numbering modes are independent of each other and do not interfere with each other; and since the shared channel controlling a certain carrier is allowed to appear only once in one TTI, A number conflict will occur.
- the shared channel number of the shared channel carried by the multiple carriers is jointly numbered. That is, the shared channel carried by each of the multiple carriers is cyclically numbered each time a TTI is reached between multiple carriers.
- implementation B it is preferable to use any of the following three implementation modes bl, b2, and b3: bl.
- multiple shared channels in the same TTI are numbered the same. That is, in the same TTI, all shared channels carried by multiple carriers are numbered by the same number. In this case, for multiple carriers, the numbers of shared channels in consecutive TTIs are consecutive and different numbers are used. For example, as shown in FIG.
- the shared channel number of the control carrier i carried by the carrier i is 1; in the TTIt+1, the shared channel of the control carrier i carried by the carrier i, and the control carrier i+ carried by the carrier i
- the shared channel of 1 is numbered 1
- the shared channel, the shared channel of the control carrier i carried by the carrier i+1 is numbered 2.
- the carrier is specifically controlled without distinguishing between the shared channels.
- the number of the shared channel carried by the other carriers is the same as that of the carrier i, and is not described here.
- the maximum number of each shared channel is L (L is a preset natural number), and is filled in the channel transmission information (for example, format) of the shared channel.
- L is a preset natural number
- the same method is used to carry the number of the shared channel. No longer.
- multiple shared channels in the same TTI are numbered differently, that is, in the same TTI, all shared channels carried by multiple carriers are numbered differently, in this case,
- the number of shared channels in consecutive TTIs is consecutive and different numbers are used; for example, as shown in FIG. 6, in TTIt+1, the shared channel number of the control carrier i carried by carrier i is 1, carrier i bearer The shared channel number of the control carrier i+ 1 is 2, and in TTIt + 1, the shared channel number of the control carrier i + 2 carried by the carrier i+1 is 3.
- the carrier is specifically controlled regardless of the shared channel.
- the number of channelization codes used for each shared channel is cyclically numbered in descending order for the plurality of shared channels carried by the plurality of carrier waves in the same TTI. Or, cycle numbering is performed in descending order of the frequency of the carrier controlled by each shared channel.
- the shared channel number of the control carrier i carried by the carrier i is 0, and in TTI t + 1, the shared channel number of the control carrier i carried by the carrier i + 1 is 1.
- the shared channel number of the control carrier i carried by the carrier i is 2; for the same reason, in TTI t + 1, the shared channel number of the control carrier i + 1 carried by the carrier i is 0, and In TTI t + 2, the shared channel number of the control carrier i + 1 carried by the carrier frequency i + 1 is 1.
- the numbering methods are independent of each other and do not interfere with each other; and since the shared channel controlling a certain carrier is allowed to appear only once in one TTI, no number conflict occurs.
- Step 800 The receiving end receives the number of each shared channel sent by the sending end using step 100 - step 120.
- the receiving end when receiving the data transmitted by the transmitting end through each shared channel, the receiving end first performs a cyclic redundancy check code (CRC) check on the data, and when the data is correct, the number of the shared channel is read.
- CRC cyclic redundancy check code
- Step 810 The receiving end calculates the error block rate of the multiple carriers according to the continuity of the numbers of the shared channels carried by the multiple carriers in units of TTI.
- Step 820 The receiving end resets the target signal to noise ratio of the multiple carriers based on the block error rate of the plurality of carriers.
- the following implementation manners include: but are not limited to: X, Y, and :: In the mode X, if the transmitting end performs independent cyclic numbering on the shared channel carried by each of the multiple carriers in units of TTI, the receiving end separately performs block error rate statistics for the plurality of carriers.
- the transmitting end is in the same TTI, the multiple shared channels carried by the same carrier are used by the same number, and the receiving end determines, for the plurality of carriers, the number of the shared channel received in the current TTI, and the continuity is satisfied. Whether the number of the number reaches the set threshold (for example, 1), and if so, it is determined that the channel is not lost, otherwise, the lost channel is determined, and the error block rate of the plurality of carriers is separately counted based on the judgment result.
- the set threshold for example, 1
- the corresponding target signal to noise ratio is reset for each of the plurality of carriers according to the block error rate of each of the plurality of carriers.
- the shared channel carried on the carrier i is the HS-SCCH, and the transmitting end is numbered by the al mode. Then, after receiving the data transmitted by the transmitting end, the receiving end performs the CRC check, and after the verification is passed, the reading is performed.
- the HSSN of the HS-SCCH assumes that the HCSN of the HS-SCCH 1 received by the receiving end in the TTI t is 0, and the HCSN of the HS-SCCH 2 is 0, then:
- the HSSN of the HS-SCCH 1 received by the receiving end in TTI t+2 is 1, the HCSN of HS-SCCH 2 is 1, the HCSN of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTI t are continuous. , determining that the HS-SCCH is not lost within TTI t+1;
- the HSSN of the HS-SCCH 1 received by the receiving end in TTI t+2 is 2
- the HCSN of HS-SCCH2 is 2
- the HCSN of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTI t are not consecutive. , that is, if the HCSNs of the two HS-SCCHs are not received within the TTI t+1, it is determined that the HS-SCCH is lost in the TTI t+1;
- the HS-SCCH channel with the HCSN of 1 is not received, and the HS-SCCH channel with the HCSN of 0 and 2 is received, that is, the correct number of received blocks is 2, and the number of lost blocks is 1, after a period of time.
- the block error rate BLER of the carrier frequency i is calculated.
- SIR signal-to-noise ratio
- the original target SNR cannot meet the requirement of BLER of 0.01.
- the target SNR of carrier i needs to be reset from -9.40dB to -8.61. dB, thus completing the outer loop power control of the HS-SCCH channel.
- the correspondence between BLER and SIR depends on the specific algorithm implementation. Table 1 only gives an example.
- the foregoing embodiment is also applicable to an E-AGCH channel in a multi-carrier system.
- the E-AGCH and its scheduled E-PUCH are normally co-carriers.
- the shared channel of the scheduling carrier i is all carried on the carrier frequency i.
- the above embodiment is also applicable, and details are not described herein again.
- the transmitting end determines whether the numbers of all shared channels received in the current TTI are consistent for each of the multiple carriers. If yes, it is determined that the shared channel is not lost, otherwise, the shared channel is determined to be lost, and the block error rate of the plurality of carriers is separately calculated based on the judgment result.
- the corresponding target signal to noise ratio is reset for each of the plurality of carriers according to the block error rate of each of the plurality of carriers.
- the shared channel carried on the carrier i is HS-SCCH, and the transmitting end is numbered by the a2 method. Then, after receiving the data transmitted by the transmitting end, the receiving end performs the CRC check, and after the verification is passed, the reading is performed.
- the HSSN of the HS-SCCH assumes that the HCSN of the HS-SCCH 1 received by the receiving end in the TTI t is 0, and the HCSN of the HS-SCCH 2 is 1, then:
- the HSSN of the HS-SCCH 1 received by the receiving end in TTI t+2 is 2
- the HCSN of HS-SCCH 2 is 3
- the HCSN of the two HS-SCCHs and the HCSN of the HS-SCCH in the ⁇ are kept continuous. Then determining that the HS-SCCH is not lost within TTI t+1;
- the HCSN of HS-SCCH 1 received by the receiving end in TTI t+2 is 3, and the HCSN of HS-SCCH2 is 4, the HCSN of HS-SCCH and the HCSN of HS-SCCH in TTI t are not continuous, that is, If the HS-SCCH channel with the HCSN of 2 is not received within the TTI t+1, it is determined that the TTI t+1 is Loss of HS-SCCH;
- the HS-SCCH channel with the HCSN of 2 is not received, and the HS-SCCH channel with the HCSN of 0, 1, 3, 4 is received, that is, the correct number of received blocks is 4, and the number of lost blocks is 1.
- the block error rate BLER of the carrier frequency i is calculated by continuous statistics for a period of time. Through simulation, the corresponding relationship between BLER and SIR in different channel environments can be obtained. Table 1 provides the required signal-to-noise ratio of the HS-SCCH channel in different channel environments with a BLER of 0.01. Assume that the statistical BLER is 0.015, which proves that the channel environment is degraded at this time.
- the original target SNR cannot meet the requirement of BLER of 0.01.
- the target SNR of carrier i needs to be reset from -9.40dB to -8.61dB. Thus, the outer loop power control of the HS-SCCH channel is completed.
- the foregoing embodiment is also applicable to an E-AGCH channel in a multi-carrier system.
- the E-AGCH and its scheduled E-PUCH are normally co-carriers.
- the shared channel of the scheduling carrier i is all carried on the carrier frequency i.
- the above embodiment is also applicable, and details are not described herein again.
- the transmitting end If the transmitting end is in a different TTI and cyclically numbers the shared channel that controls the same carrier carried by the same carrier, the receiving end determines, for the plurality of carriers, the number of the shared channel that controls the receiving of the current carrier in the current TTI. Whether continuity is satisfied, and if so, it is determined that the shared channel is not lost, otherwise, the shared channel is determined to be lost, and the block error rate of the plurality of carriers is separately counted based on the judgment result.
- the corresponding target signal to noise ratio is reset for each of the plurality of carriers according to the block error rate of each of the plurality of carriers.
- the carrier i carries the shared channel HS-SCCH1 of the control carrier i, controls the shared channel HS-SCCH 2 of the carrier i+1, and the transmitting end is numbered by the a3 method. Then, the receiving end receives the transmission transmitted by the transmitting end. After the data, the CRC check is performed first. After the check is passed, the HCSN of each HS-SCCH is read. It is assumed that the HCSN of the HS-SCCH 1 received by the receiving end in the TTI t is 0, and the HCSN of the HS-SCCH 2 is 1, :
- the HSSN of the HS-SCCH 1 received by the receiving end in TTI t+2 is 1, the HCSN of HS-SCCH 2 is 2, and the HCSN of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTIt are continuous.
- the HS-SCCH 1 received by the receiving end in ⁇ t + 2 is 2, the HCSN of HS-SCCH 2 is 3, the HCSN of HS-SCCH and the HCSN of HS-SCCH in ⁇ t are not continuous, that is, If HS-SCCH 1 with HCSN 1 and HS-SCCH 2 with HCSN 2 are not received within TTI t+1, it is determined that HS-SCCH is lost within TTI t+1;
- the HS-SCCH channel with the HCSN of 1 is not received, and the HS-SCCH channel with the HCSN of 0, 2 is received, that is, the correct number of received blocks is 2, and the number of lost blocks is 1;
- the block error rate BLER of carrier i is calculated. Through simulation, the corresponding relationship between BLER and SIR in different channel environments can be obtained.
- Table 1 provides the required signal-to-noise ratio of the HS-SCCH channel in different channel environments with a BLER of 0.01. 4 ⁇ , the statistical BLER is 0.015, which proves that the channel environment is degraded at this time.
- the original target SNR cannot meet the requirement of BLER of 0.01.
- the target SNR of carrier i needs to be reset from -9.40dB to - 8.61dB, thus completing the outer loop power control of the HS-SCCH channel.
- the foregoing embodiment is also applicable to an E-AGCH channel in a multi-carrier system.
- the E-AGCH and its scheduled E-PUCH are normally co-carriers.
- the shared channel of the scheduling carrier i is all carried on the carrier frequency i.
- the above embodiment is also applicable, and details are not described herein again.
- Mode Y If the transmitting end performs independent cycle numbering for the shared channel carried by each of the multiple carriers in units of TTI, the receiving end uniformly performs block error rate statistics on the plurality of carriers.
- the transmitting end is in the same TTI, the multiple shared channels carried by the same carrier are used by the same number, and the receiving end determines, for the plurality of carriers, the number of the shared channel received by the current TTI, and the continuity is satisfied. Whether the number of numbers reaches the set threshold, and if so, it is determined that the channel is not lost, otherwise, the lost channel is determined, and the block error rate of the plurality of carriers is uniformly counted based on the judgment result.
- the receiving end uniformly performs the block error rate statistics on the plurality of carriers, it is further required to uniformly reset the corresponding target signal to noise ratio for the plurality of carriers according to the obtained block error rate.
- the control carrier i shared channel carried on carrier i is HS-SCCH1
- the shared channel of control carrier i+2 is HS-SCCH2
- the shared channel of control carrier i+1 carried on carrier i+1 is HS-SCCH3.
- the transmitting end uses the al mode for numbering.
- the receiving end performs the CRC check.
- the HCSN of each HS-SCCH is read, and the receiving end is assumed to receive in the TTI t.
- the HSSN of HS-SCCH 1 is 0, the HCSN of HS-SCCH 2 is 0, and the HCSN of HS-SCCH3 is 1, then:
- the HSSN of the HS-SCCH 1 received by the receiving end in TTI t+2 is 1
- the HCSN of HS-SCCH 2 is 1
- the HCSN of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTI t are continuous.
- the carrier i does not lose the HS-SCCH in the TTI t+1; if the receiving end receives the HSSN of the HS-SCCH 3 in the TTI t+2 is 2, the HSSN of the HS-SCCH and the HS- in the TTI t If the HCSN of the SCCH remains continuous, it is determined that the carrier i+1 does not lose the HS-SCCH within the TTI t+1; if the HCSN of the HS-SCCH 1 received by the receiving end in the TTI t + 2 is 2, the HCSN of the HS-SCCH2 2, the HCSN of the two HS-SCCHs and the HCSN of the HS-SCCHs in the TTI t are not consecutive, that is, the HS-SCCH 1 and the HS-SCCH 2 with the HCSN of 1 are not received within the TTI t+1, then it is determined The carrier i loses the HS-SCCH in the TTI t+1;
- the carrier i the HS-SCCH channel with the HCSN of 1 is not received, and the HS-SCCH channel with the HCSN of 0, 2 is received, that is, the correct number of received blocks is 2, the number of lost blocks is 1, and the carrier i+1
- the HS-SCCH channel with the HCSN of 2 is not received, and the HS-SCCH channel with the HCSN of 1, 3 is received, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1.
- the total block error rate is calculated.
- H is not, the statistical BLER is 0.015, based on Table 1, it proves that the channel environment is deteriorated at this time, the original target SNR can not meet the requirement of BLER of 0.01, and the target SNR of HS-SCCH channel of all carriers needs to be obtained. It is reset to -8.61dB by -9.40dB, thus completing the outer loop power control of the HS-SCCH channel.
- the foregoing embodiment is also applicable to an E-AGCH channel in a multi-carrier system.
- the E-AGCH and its scheduled E-PUCH are normally co-carriers.
- the shared channel of the scheduling carrier i is all carried on the carrier frequency i.
- the above embodiment is also applicable, and details are not described herein again.
- the receiving end determines, for each of the multiple carriers, whether the numbers of all the shared channels received in the current TTI satisfy the continuity. If yes, it is determined that the shared channel is not lost, otherwise, the shared channel is determined to be lost, and the error block rate of the multiple carriers is uniformly counted based on the judgment result.
- the receiving end uniformly performs the block error rate statistics on the plurality of carriers, it is further required to uniformly reset the corresponding target signal to noise ratio for the plurality of carriers according to the obtained block error rate.
- the control carrier i shared channel carried on carrier i is HS-SCCH1
- the shared channel of control carrier i+2 is HS-SCCH2
- the shared channel of control carrier i+1 carried on carrier i+1 is HS-SCCH3.
- the transmitting end is numbered by the a2 method. Then, after receiving the data transmitted by the transmitting end, the receiving end performs the CRC check. After the check is passed, the HCSN of each HS-SCCH is read, and the receiving end is assumed to receive in the TTI t.
- the HSSN of HS-SCCH 1 is 0, the HCSN of HS-SCCH 2 is 1, and the HCSN of HS-SCCH3 is 1, then:
- the HCSN of HS-SCCH 1 received by the receiving end in TTI t+2 is 2, the HCSN of HS-SCCH 2 is 3, and the HCSN of both HS-SCCHs and the HCSN of HS-SCCH in TTI t are maintained. Continuously, it is determined that the carrier i does not lose the HS-SCCH in the TTI t+1; if the HCSN of the HS-SCCH 3 received by the receiving end in the TTI t+2 is 2, the HCSN of the HS-SCCH is within the TTI t The HSSN of the HS-SCCH remains continuous, and it is determined that the carrier i+1 does not lose the HS-SCCH within the TTI t+l;
- the HCSN of HS-SCCH 1 received by the receiving end in TTI t + 2 is 3 and the HCSN of HS-SCCH 2 is 4, the HCSN of HS-SCCH and the HCSN of HS-SCCH in TTI t are not continuous, that is, If the HS-SCCH with the HCSN of 2 is not received in the TTI t+1, it is determined that the carrier i loses the HS-SCCH in the TTI t+1; if the receiving end receives the HS-SCCH 3 in the TTI t+2, the HCSN is 3, the HCSN of the HS-SCCH is not consistent with the HCSN of the HS-SCCH in the TTI t, that is, the HS-SCCH with the HCSN of 2 is not received within the TTI t+1, then the carrier i+1 is determined to be at the TTI t+ 1 lost HS-SCCH; Then, on the carrier i, the HS-SCCH channel with the HC
- the HS-SCCH channel with the HCSN of 2 is not received, and the HS-SCCH channel with the HCSN of 1, 3 is received, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1.
- the block error rate is calculated.
- the corresponding relationship between BLER and SIR in different channel environments can be obtained. Assume that the statistically obtained 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 of BLER of 0.01.
- the target signal-to-noise ratio of the HS-SCCH channel of all carriers needs to be -9.40dB is reset to -8.61dB, thus completing the outer loop power control of the HS-SCCH channel.
- the above embodiment is also applicable to the E-AGCH channel in the multi-carrier system.
- the E-AGCH and its scheduled E-PUCH are usually co-carriers.
- the shared channel of the scheduling carrier i is all carried on the carrier frequency i.
- the above embodiment is also applicable, and details are not described herein again.
- the receiving end determines, for the plurality of carriers, whether the number of the shared channel that controls the receiving of the current carrier in the current TTI is The continuity is satisfied, and if so, it is determined that the shared channel is not lost, otherwise, the shared channel is determined to be lost, and the block error rate of the plurality of carriers is uniformly counted based on the judgment result.
- the receiving end uniformly performs the block error rate statistics on the plurality of carriers, it is further required to uniformly reset the corresponding target signal to noise ratio for the plurality of carriers according to the obtained block error rate.
- the control carrier i shared channel carried on carrier i is HS-SCCH1
- the shared channel of control carrier i+2 is HS-SCCH2
- the shared channel of control carrier i+1 carried on carrier i+1 is HS-SCCH3.
- the transmitting end is numbered by the a3 method. Then, after receiving the data transmitted by the transmitting end, the receiving end performs the CRC check. After the check is passed, the HCSN of each HS-SCCH is read, and the receiving end is assumed to receive in the TTI t.
- the HSSN of HS-SCCH 1 is 0, the HCSN of HS-SCCH 2 is 1, and the HCSN of HS-SCCH3 is 1, then:
- the HCSN of HS-SCCH 1 received by the receiving end in TTI t+2 is 1, HS-SCCH 2
- the HCSN is 2, the HCSNs of the two HS-SCCHs are both continuous with the HCSNs of the HS-SCCHs in the TTI t, and it is determined that the carrier i does not lose the HS-SCCH within the TTI t + 1; if the receiving end is at the TTI t+ 2
- the HSSN of HS-SCCH 3 received in 2 is 2, and the HCSN of HS-SCCH is kept continuous with the HCSN of HS-SCCH in TTI t, then it is determined that carrier i+1 does not lose HS-SCCH in TTI t + 1 ;
- the HCSN of the HS-SCCH 1 received by the receiving end in TTI t + 2 is 2
- the HCSN of HS-SCCH2 is 3
- the HCSN of the two HS-SCCHs and the HCSN of the HS-SCCH in the TTI t are not consecutive.
- the shared channel of the control carrier i does not receive the HS-SCCH channel with the HCSN of 1, and receives the HS-SCCH channel with the HCSN of 0, 2, that is, the correct number of received blocks is 2, and the number of lost blocks
- the shared channel of the control carrier i+2 does not receive the HCSN of 2
- the HS-SCCH channel numbered 2 is not received on carrier i+1, and the HS-SCCH channel numbered 1, 3 is received, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1.
- the block error rate is calculated.
- the corresponding relationship between BLER and SIR in different channel environments can be obtained. Assume that the statistically obtained 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 of BLER of 0.01.
- the target SNR of the HS-SCCH channel of all carriers needs to be obtained.
- the outer loop power control of the HS-SCCH channel is completed by resetting -9.44dB to -8.61dB.
- the above embodiment is also applicable to the E-AGCH channel in the multi-carrier system.
- the E-AGCH and its scheduled E-PUCH are usually co-carriers.
- the shared channel of the scheduling carrier i is all carried on the carrier frequency i.
- the above embodiment is also applicable, and details are not described herein again.
- the transmitting end performs the joint cycle numbering on the shared channel carried by the multiple carriers in the TTI unit, the receiving end uniformly performs the block error rate statistics on the multiple carriers.
- the transmitting end is in the same TTI, all the shared channels carried by the multiple carriers are used by the same number, and the receiving end determines, for the plurality of carriers, the number of the shared channel received by the current TTI, and the continuity is satisfied. Whether the number of numbers reaches the set threshold, and if so, it is determined that the channel is not lost, otherwise, the lost channel is determined, and the block error rate of the plurality of carriers is uniformly counted based on the judgment result.
- the receiving end After receiving the block error rate statistics for the plurality of carriers, the receiving end needs to uniformly reset the corresponding target signal to noise ratio for the plurality of carriers according to the obtained block error rate.
- the control carrier i shared channel carried on carrier i is HS-SCCH1
- the shared channel of control carrier i+2 is HS-SCCH2
- the shared channel of control carrier i+1 carried on carrier i+1 is HS-SCCH3.
- the transmitting end is numbered by the bl mode. Then, after receiving the data transmitted by the transmitting end, the receiving end performs the CRC check. After the check is passed, the HCSN of each HS-SCCH is read, and the receiving end is assumed to receive in the TTI t.
- the HSSN of HS-SCCH 1 is 0, the HCSN of HS-SCCH 2 is 0, and the HCSN of HS-SCCH3 is 0. Then:
- the HCSN of HS-SCCH 1 received by the receiving end in TTI t+2 is 1, the HCSN of HS-SCCH 2 is 1, if the HCSN of HS-SCCH 3 received by the receiving end in TTI t+2 is 1
- the HSSN of the HS-SCCH is kept continuous with the HCSN of the HS-SCCH in the TTI t, and it is determined that the HS-SCCH is not lost within the TTI t+1;
- the receiving end receives the HSSN of HS-SCCH 1 in TTI t + 2 is 2, the HCSN of HS-SCCH 2 is 2, the HCSN of HS-SCCH 3 is 2, the HCSN of HS-SCCH and the HS in TTI t -
- the HCSN of the SCCH is not kept continuous, that is, the HS-SCCH 1 ⁇ HS-SCCH 3 with the HCSN of 1 is not received within the TTI t+1, and it is determined that the HS-SCCH is lost within the TTI t+1;
- the HS-SCCH channel with the HCSN of 1 is not received, and the HS-SCCH channel with the HCSN of 0, 2 is received, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1, and the calculation is performed by continuous statistics for a period of time. Get the block error rate.
- the corresponding relationship between BLER and SIR in different channel environments can be obtained. Assume that the statistically obtained BLER is 0.015, based on Table 1, proof At this time, the channel environment is deteriorated, and the original target signal-to-noise ratio cannot meet the requirement of BLER of 0.01.
- the target signal-to-noise ratio of the HS-SCCH channel of all carriers needs to be reset from -9.40 dB to -8.61 dB, thus completing Outer loop power control of the HS-SCCH channel.
- the above embodiment is also applicable to the E-AGCH channel in the multi-carrier system.
- the E-AGCH and its scheduled E-PUCH are usually co-carriers.
- the shared channel of the scheduling carrier i is all carried on the carrier frequency i.
- the above embodiment is also applicable, and details are not described herein again.
- the receiving end determines, for the multiple carriers, whether the numbers of all the shared channels received in the current TTI are consistent. If yes, it is determined that the shared channel is not lost, otherwise, the shared channel is determined to be lost, and the error block rate of the plurality of carriers is uniformly counted based on the judgment result.
- the receiving end After receiving the block error rate statistics for the plurality of carriers, the receiving end needs to uniformly reset the corresponding target signal to noise ratio for the plurality of carriers according to the obtained block error rate.
- the control carrier i shared channel carried on carrier i is HS-SCCH1
- the shared channel of control carrier i+2 is HS-SCCH2
- the shared channel of control carrier i+1 carried on carrier i+1 is HS-SCCH3.
- the transmitting end is numbered by the b2 mode. Then, after receiving the data transmitted by the transmitting end, the receiving end performs the CRC check. After the check is passed, the HCSN of each HS-SCCH is read, and the receiving end is assumed to receive in the TTI t.
- the HSSN of HS-SCCH 1 is 0, the HCSN of HS-SCCH 2 is 1, and the HCSN of HS-SCCH3 is 2, then:
- the receiving end receives the HSSN of HS-SCCH 1 in TTI t+2 is 3, the HCSN of HS-SCCH 2 is 4, the HCSN of HS-SCCH 3 is 5, and the HCSN of HS-SCCH is both within TTI t
- the HSSN of the HS-SCCH remains continuous, and it is determined that the HS-SCCH is not lost within the TTI t+1;
- the receiving end receives the HSSN of HS-SCCH 1 in TTI t + 2 is 5, the HCSN of HS-SCCH2 is 6, the HCSN of HS-SCCH 3 is 7, the HCSN of HS-SCCH and the HS in TTI t -
- the HCSN of the SCCH is not kept continuous, that is, the HS-SCCH with the HCSN of 3, 4 is not received within the TTI t+1, and it is determined that the HS-SCCH is lost within the TTI t+1;
- the HS-SCCH channel with the HCSN of 3, 4 is not received, and the HS-SCCH channel with the HCSN of 0, 1, 2, 5, 6, and 7 is received, that is, the correct number of received blocks is 6, and the number of lost blocks is 2.
- the block error rate is calculated.
- the corresponding relationship between BLER and SIR in different channel environments can be obtained. Assume that the statistically obtained 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 of BLER of 0.01.
- the target SNR of the HS-SCCH channel of all carriers needs to be obtained. It is reset to -8.61dB by -9.40dB, thus completing the outer loop power control of the HS-SCCH channel.
- the above embodiment is also applicable to the E-AGCH channel in the multi-carrier system.
- the E-AGCH and its scheduled E-PUCH are usually co-carriers.
- the shared channel of the scheduling carrier i is all carried on the carrier frequency i.
- the above embodiment is also applicable, and details are not described herein again.
- the receiving end determines, for the multiple carriers, the shared channel that controls the receiving of the certain carrier in the current TTI. Whether the number satisfies the continuity, and if so, it is determined that the shared channel is not lost, otherwise, the shared channel is determined to be lost, and the error block rate of the plurality of carriers is uniformly counted based on the judgment result.
- the receiving end After receiving the block error rate statistics for the plurality of carriers, the receiving end needs to uniformly reset the corresponding target signal to noise ratio for the plurality of carriers according to the obtained block error rate.
- control carrier i shared channel carried on carrier i is HS-SCCH 1
- the shared channel of control carrier i+2 is HS-SCCH 2
- the shared channel of control carrier i+1 carried on carrier i+1 is HS- SCCH 3
- control the shared channel HS-SCCH4 of the carrier i+2 is numbered by the b3 method. Then, after receiving the data transmitted by the transmitting end, the receiving end performs the CRC check, and after the verification is passed, the reading is performed.
- the HSSN of each HS-SCCH For the HSSN of each HS-SCCH, assume that the HSSN of HS-SCCH 1 received by the receiving end in TTI t is 0, the HCSN of HS-SCCH 2 is 1, and the HCSN of HS-SCCH3 is 1, then: If the receiving end is at TTI t The HCSN of the HS-SCCH 1 received in +2 is 1, and its HCSN is kept continuous with the HCSN of the HS-SCCH in the TTI t, and it is determined that the shared channel HS-SCCH of the control carrier i is not lost in TTI t+1.
- the HSSN of HS-SCCH 4 is 2, and its HCSN is kept continuous with the HCSN of HS-SCCH in TTI t, and it is determined that the HS-SCCH channel of control carrier i+2 is not lost within TTI t+1.
- the HSSN of the HS-SCCH 3 is 2, and the HCSN of the HS-SCCH is kept continuous with the HCSN of the HS-SCCH in the TTI t, and it is determined that the HS-SCCH channel of the control carrier i+1 is not lost in the TTI t+1. Lost.
- the HCSN of the HS-SCCH 1 received by the receiving end in ⁇ t + 2 is 2
- the HCSN of HS-SCCH 4 is 3
- the HCSN of the two HS-SCCHs and the HCSN of the HS-SCCH in ⁇ t are not consecutive.
- the HS-SCCH 1 with the HCSN of 1 and the HSSN of the control carrier i+2 with the HCSN of 2 are not received within the TTI t+1;
- the HSSN of the HS-SCCH 3 is 3, and the HCSN and the TTI t are within
- the HSSN of the HS-SCCH is not kept continuous, that is, the HS-SCCH 3 with the HCSN of 2 is not received within the TTI t+1, and it is determined that the HS-SCCH is lost within the TTI t+1;
- the shared channel of the control carrier i does not receive the HS-SCCH channel with the HCSN of 1, and receives the HS-SCCH channel with the HCSN of 0, 2, that is, the correct number of received blocks is 2, and the number of lost blocks is 1, control
- the shared channel of carrier i+2 does not receive the HS-SCCH channel with the HCSN of 2, and receives the HS-SCCH channel with the HCSN of 1, 3, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1, control
- the shared channel of carrier i+1 does not receive the HS-SCCH channel with the HCSN of 2, and receives the HS-SCCH channel with the HCSN of 1, 3, that is, the number of correctly received blocks is 2, and the number of lost blocks is 1.
- the block error rate is calculated.
- the statistical BLER is 0.015, based on Table 1, it proves that the channel environment is deteriorated at this time, the original target signal-to-noise ratio can not meet the requirement of BLER of 0.01, and the target signal of HS-SCCH channel of all carriers is needed.
- the noise ratio is reset from -9.40dB to -8.61dB, thus completing the outer loop power control of the HS-SCCH channel.
- the above embodiment is also applicable to the E-AGCH channel in the multi-carrier system.
- the E-AGCH and its scheduled E-PUCH are usually co-carriers.
- the shared channel of the scheduling carrier i is all carried on the carrier frequency i.
- the above embodiment is also applicable, and details are not described herein again.
- an indication system for power control includes a transmitting end and a receiving end, where
- a transmitting end configured to determine a plurality of carriers to be used for transmitting data, and cyclically number the shared channels respectively carried by the multiple carriers in units of TTIs, and transmit the numbers of the shared channels by using the multiple carriers
- the receiving end is instructed to perform corresponding power control according to the continuity of the numbers of the shared channels.
- the receiving end is configured to receive, by the sending end, the number of each shared channel that is sent by using the foregoing manner, and collect, in units of TTI, the block error rate of the multiple carriers according to the continuity of the number of each shared channel, and the statistics based a block error rate of the plurality of carriers, and resetting a target signal to noise ratio of the plurality of carriers.
- a device for power control that is, 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
- the numbering unit 11 is configured to perform cyclic numbering on the shared channel carried by the multiple carriers in units of TTIs;
- the communication unit 12 is configured to transmit the number of each shared channel to the receiving end by using the multiple carriers, and instruct the receiving end to perform corresponding power control according to the continuity of the numbers of the shared channels.
- a power control device that is, a receiving end, includes a communication unit 20, a statistical unit 21, and a processing unit 22, where
- the communication unit 20 is configured to receive a number of each shared channel sent by the sending end;
- the statistic unit 21 is configured to calculate, according to the continuity of the number of each shared channel, a block error rate of the multiple carriers in units of TTIs;
- the processing unit 22 is configured to reset a target signal to noise ratio of the multiple carriers based on a statistical block error rate of the multiple carriers.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is applicable to one or more computer-usable storage media (including but not limited to disks) having computer usable program code embodied therein. A form of computer program product embodied on a memory, CD-ROM, optical storage, or the like.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Abstract
本申请公开了一种功率控制的方法、装置及系统,用以针对多载波系统实现共享信道的准确编号,进而实现相应的功率控制。该方法为:发送端以TTI为单位,针对多个载波各自承载的共享信道进行循环编号,并利用多个载波将各共享信道的编号传送至接收端,指示接收端根据各共享信道的编号的连续性执行相应的功率控制。而接收端接收发送端传送的各共享信道的编号后,TTI为单位,根据各共享信道的编号的连续性统计所述多个载波的误块率,并基于该误块率,重新设置所述多个载波的目标信噪比。这样,便在多载波系统中实现了准确、有效地外环功率控制,提高了系统性能。本申请同时公开了相应的用于功率控制的装置和用于功率控制的系统。
Description
一种功率控制的方法、 装置及系统 本申请要求在 2010年 7月 1日提交中国专利局、申请号为 201010223913.1、发明名称为"一 种功率控制的方法、 装置及系统"的中国专利申请的优先权, 其全部内容通过引用结合在本申 请中。 技术领域
本发明涉及通信领域, 特别涉及一种功率控制的方法、 装置及系统。 背景技术
功率控制是蜂窝移动通信中的基本概念。 由于码分多址(Code Division Multiple Access, CDMA ) 系统是一个干扰受限的系统, 使得它对信号的发送 功率以及信道特性的变化非常敏感。 因此, 为了能够有效控制用户间干扰、 改善功率的利用率, 从而提高整个系统的用户容量和通话质量, 进而更有效 地利用无线资源, 功率控制便成为了不可缺少的重要手段。
功率控制按移动台和基站是否同时参与又分为开环功率控制和闭环功率 控制两大类。 闭环功率控制是指发送端根据接收端发来的反馈信息对发射功 率进行控制的过程; 而开环功率控制不需要接收端的反馈, 发送端根据自身 测量得到的信息对发射功率进行控制。 闭环功率控制又可以分为内环功率控 制及外环功率控制。 内环功率控制主要通过接收信噪比与目标信噪比的比较, 确定功率调整步进。 外环功率控制根据业务的 QoS ( Quality of Service, 服务 质量)或者误块率( Block Error Rate, BLER )要求, 更新目标信噪比。 由于 在不同的无线信道环境下, 满足 QoS要求需要的目标信噪比值不同, 并且由 于信道环境是不断变化的, 很难得到一个普适性的目标信噪比值, 因此加入 外环功率控制。 外环功率控制中, 接收端检测码块的误块率 (BLER ), 并根 据检测结果更新目标信噪比值, 如果误块率低于 QoS要求, 那么控制器将目 标信噪比值减小; 反之, 则增加目标信噪比值。
在时分同步的码分多址 ( Time Division-Synchronous Code Division
Multiple Access, TD-SCDMA )系统中, 在上行的增强专用信道绝对授权信道 ( E-DCH ( Enhanced Dedicated Channel ) Absolute Grant Channel , E-AGCH ) 及高速下行共享信道的共享控制信道( Shared Control Channel for HS-DSCH ( High Speed Downlink Shared Channel ), HS-SCCH ) 的信道传输信息中, 为 了节省比特承载, UE-ID ( Identity )隐式的含在 E-AGCH/HS-SCCH的信息比 特中, 即通过将 UE-ID与循环冗余校验码( CRC, Cyclic Redundancy Check ) 进行异或操作, 共同体现 CRC校验的功能。 此时引起 CRC校验错误的原因 有两类, 一是该 UE-ID不属于此用户设备(User Equipment, UE ), 二是数据 传输发生误块; 因此, 通过 CRC校验统计 BLER的方法, 不适用于上述两类 信道。于是在 HS-SCCH及 E-AGCH的信道传输信息中,分别引入了 E-AGCH 循环序列号( E-AGCH Cyclic Sequence Number, ECSN )及 HS-SCCH循环序 列号 (HS-SCCH Cyclic Sequence Number, HCSN ), 其中 ECSN及 HCSN各 占 3比特。发送端根据 E-AGCH/HS-SCCH传输信息的发送时刻, 为其设置循 环序列号, 接收端根据接收到的 ECSN/HSCN 的连续性判断是否丟失了 E-AGCH/HS-SCCH 信道传输信息, 即当 CRC 校验正确时, 读取本次的 ECSN/HCSN, 通过和前一次的 ECSN/HCSN进行比较, 判断是否循环连续, 如果不连续,根据编号的差异, 即可统计丟失的 E-AGCH/HS-SCCH的信道个 数, 进而计算出一段时间内共享信道的 BLER, 从而更新设置目标信噪比, 达 到外环功率控制的目的。 可见, 在当前标准中, 由于 E-AGCH/HS-SCCH信道 的信道格式, ECSN/HCSN成为统计信道 BLER的唯一手段。
然而, 现有技术中, 支持单载波技术的发送端, 只能在一个载波上发送 和接收信息。 因此, E-AGCH/HS-SCCH信道与其调度的业务信道承载在同一 载波上, 而且在任意一个传输时间间隔( Transmission Time Interval, TTI )内, 接收端只会接受一条共享信道的调度, 因此, 单载波 ECSN/HCSN的设定, 只是针对一个载波上的 E-AGCH/HS-SCCH信道,根据发送时刻对其循环递加 编号。
而引入多载波 HSDPA ( High Speed Downlink Packet Access, 高速下行分
组接入)技术后, 接收端具有了同时接收多个载波的能力, 控制所有载波高 速物理下行共享信道 ( High Speed Physical Downlink Shared Channel , HS-PDSCH )的 HS-SCCH信道可以都配置在一个载波上, 即调度某一载波的 共享信道可以不承载在该载波上。 而且, 基站可以在同一 TTI 内针对多个载 波进行调度。 在多载波 HSUPA ( High Speed Uplink Packet Access, 高速上行 分组接入)阶段,终端可以在多个载波上发送和接收信息。各个载波的 E-AGCH 信道分布在该信道控制的 E-PUCH ( Enhanced-Physical Uplink Channel, 增强 的物理上行信道)载波上(多对多方式), 基站在同一 TTI可以为多个载波进 行调度。 这与单载波系统的情况有很大的不同, 因此, 现有技术下提供的在 环功率控制的方法, 显然并不适用于多载波系统。
有鉴于此, 需要针对多载波系统重新设计共享信道的编号方法以及根据 不同编号方法所釆用的功率控制方式。 发明内容
本发明实施例提供一种功率控制的方法、 装置及系统, 用以针对多载波 系统实现共享信道的准确编号, 进而实现相应的功率控制。
本发明实施例提供的具体技术方案如下:
一种功率控制的方法, 包括:
发送端确定传送数据需使用的多个载波;
发送端以 TTI为单位, 对所述多个载波各自承载的共享信道进行循环编 号;
发送端利用所述多个载波将各共享信道的编号传送至接收端, 指示接收 端根据各共享信道的编号的连续性执行相应的功率控制。
一种功率控制的方法, 包括:
接收端接收发送端釆用上述方法发送的各共享信道的编号;
接收端以 TTI为单位, 根据各共享信道的编号的连续性统计所述多个载
波的误块率;
接收端基于统计的所述多个载波的误块率, 重新设置所述多个载波的目 标信噪比。
一种功率控制的装置, 包括:
确定单元, 用于确定传送数据需使用的多个载波;
编号单元, 用于以 TTI为单位, 对所述多个载波各自承载的共享信道进 行循环编号;
通信单元, 用于利用所述多个载波将各共享信道的编号传送至接收端, 才 B
示接收端根据各共享信道的编号的连续性执行相应的功率控制。
一种功率控制的装置, 包括:
通信单元, 用于接收上述装置发送的各共享信道的编号;
统计单元, 用于以 TTI为单位, 根据各共享信道的编号的连续性统计所 述多个载波的误块率;
处理单元, 用于基于统计的所述多个载波的误块率, 重新设置所述多个 载波的目标信噪比。
一种功率控制的系统, 包括发送端和接收端, 其中,
所述发送端, 用于确定传送数据需使用的多个载波, 并以 TTI为单位, 对所述多个载波各自承载的共享信道进行循环编号, 以及利用所述多个载波 将各共享信道的编号传送至接收端, 指示接收端根据各共享信道的编号的连 续性执行相应的功率控制。
一种功率控制的系统, 包括发送端和接收端, 其中,
所述接收端, 用于接收上述发送端发送的各共享信道的编号, 并以 ΤΉ 为单位, 根据各共享信道的编号的连续性统计所述多个载波的误块率, 以及 基于统计的所述多个载波的误块率, 重新设置所述多个载波的目标信噪比。
本发明有益效果如下:
当前系统中, 只给出了在单载波的情况下, ECSN及 HCSN的编号方法及根
据 ECSN及 HCSN进行外环功率控制的方法, 针对多载波这样日益复杂的信道 配置的系统并未给出明确方法, 本发明实施例中, 针对多载波系统, 提出了 发送端针对共享信道的循环编号方法, 以及依照不同循环编号方法, 接收端 通过判断编号是否连续, 统计误块率, 调整目标信噪比, 从而完成多载波系 统共享信道的外环功率控制的方法, 进而在多载波系统中实现了准确、 有效 地外环功率控制, 提高了系统性能。 附图说明
图 1为本发明实施例中发送端进行功率控制指示流程图;
图 2 -图 7为本发明实施例中发送端对多个载波承载的各共享信道进行循 环编号示意图;
图 8为本发明实施例中接收端根据发送端指示进行功率控制流程图; 图 9为本发明实施例中功率控制的系统体系架构图;
图 10为本发明实施例中发送端功能结构图;
图 11为本发明实施例中接收端功能结构图。 具体实施方式
目前, 在釆用单载波技术的移动通信系统中, 发送端往往釆用在共享信 道的传输信息中添加循环序列编号的方法, 辅助接收端进行功率控制。 随着 多载波技术的釆用, 多载波高速下行分组接入 ( Multi-carrier High Speed Downlink Packet Access , MC-HSDPA ) 及多载波高速上行分组接入 ( Multi-carrier High Speed Downlink Packet Access , MC-HSUPA )等接入方式 被引入至移动通信系统中。 现有的针对单载波下共享信道的循环编号方式无 法很好的达到辅助接收端进行功率控制的目的, 因此本发明实施例中, 针对 多载波系统, 提出了一种新的发送端所使用的针对共享信道的循环编号方法, 用于辅助接收端完成功率控制。
其中, 所谓的共享信道可以是 E-AGCH或 HS-SCCH,还可以是其他种类
的共享信道, 此种共享信道的共同特点是 UE-ID隐式的含于循环冗余校验码 ( CRC )校验信息中, 因此, 只能通过对共享信道进行循环编号的方式辅助 接收端统计误块率(BLER ), 从而达到功率控制的目的。 发送端可以是基站, 也可以是终端, 相应的, 接收端可以是终端, 也可以是基站, 为了使发送端 和接收端对编号方式的理解一致, 双方可以釆用高层信令、 物理信令或协议 标准预先约定共享信道的循环编号方式。
下面结合附图对本发明优选的实施方式进行详细说明。
本发明实施例中, 发送端对多载波上承载的各共享信道进行编号是为了 对接收端进行功率控制指示, 参阅图 1 所示, 发送端基于对多个载波承载的 共享信道进行编号, 实现对接收端的功率控制指示的详细流程如下:
步骤 100: 发送端确定传送数据需使用的多个载波。
步骤 110: 发送端以 TTI为单位,针对多个载波各自承载的共享信道进行 循环编号。
步骤 120: 发送端利用上述多个载波将各共享信道的编号传送至接收端, 指示接收端根据各共享信道的编号的连续性执行相应的功率控制。
执行步骤 120 时, 发送端通过多个载波承载的各共享信道向接收端传送 数据, 而由于各共享信道的编号作为信道格式的一部分携带在其传送的信道 传输信息内, 因此, 接收端接收到发送端通过各共享信道传送的数据的同时, 也接收到了各共享信道的编号。
在上述实施例中, 发送端在执行步骤 110时, 包含但不限于以下 A和 B 两种方式:
方式 A、 以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立 循环编号; 即在多个载波内, 每到达一个 TTI, 分别将多个载波各自承载的共 享信道独立地进行循环编号。
釆用实现方式 A时, 优选釆用以下 al、 a2和 a3三种实现方式中任一种: al、 在同一载波内, 将在同一 TTI的多条共享信道釆用同一编号, 即在 同一 TTI内, 将同一载波承载的多条共享信道釆用同一编号, 在这种情况下,
对于同一载波, 各共享信道以 TTI为单位连续编号。
例如, 参阅图 2所示, 在 TTI t内, 载波 i承载的控制载波 i的共享信道 的编号为 0; 在 TTI t + 1内, 载波 i承载的控制载波 i + 1的共享信道、控制载 波 i + 2的共享信道和控制载波 i + 3的共享信道均编号为 1 ; 在 TTI t + 2内, 载波 i承载的控制载波 i的共享信道、 控制载波 i + 1的共享信道均编号为 2。
其他载波承载的共享信道的编号方式与载波 i相同, 在此不再赘述。
各共享信道的编号的最大值为 L ( L为预设的自然数), 填充至共享信道 的信道传输信息(如, format )中, 以下实施例中均釆用相同方法携带共享信 道的编号, 亦不再赘述。
a2、 在同一载波内, 将在同一 TTI的多条共享信道釆用不同编号, 即在 同一 ΤΉ内, 将同一载波承载的多条共享信道釆用不同编号, 在这种情况下, 对于同一载波, 连续 TTI内共享信道的编号连续且釆用不同编号。
例如, 参阅图 3所示, 在 TTI t内, 载波 i承载的控制载波 i的共享信道 的编号为 0;在 TTI t + 1内,载波 i承载的控制载波 i + 1的共享信道编号为 1 , 控制载波 i + 2的共享信道编号为 2, 而控制载波 i + 3的共享信道编号为 3; 在 TTI t + 2内, 载波 i承载的控制载波 i的共享信道编号为 4, 控制载波 i + 1 的共享信道编号为 5。
其他载波承载的共享信道的编号方式与载波 i相同, 在此亦不再赘述。 另一方面, 在釆用方式 a2进行编号时, 针对在同一 TTI的由同一载波承 载的多条共享信道, 按照各共享信道所釆用的信道化码由低至高的顺序进行 循环编号, 或者, 按照各共享信道所控制的载波的频率由低至高的顺序进行 循环编号。
a3、 在同一载波内, 针对在不同 TTI但控制同一载波的共享信道进行循 环编号, 即在不同 TTI 内, 对同一载波承载的控制同一载波的共享信道进行 循环编号。
例如, 参阅图 4所示, 载波 i承载的控制载波 i的共享信道在 TTI t、 TTI t + 1和 TTI t + 2内分别编号为 0、 1、 2, 而载波 载的控制载波 i + 1的共
享信道在 TTI t + 1和 TTI t + 2内分别编号为 0和 1, 其编号方式彼此独立, 互不干扰; 并且由于控制某一载波的共享信道在一个 TTI内只允许出现一次, 因此不会出现编号冲突。
方式 B、 以 TTI为单位, 针对多个载波各自承载的共享信道进行联合循 环编号; 即在多个载波之间, 每到达一个 TTI, 将多个载波各自承载的共享信 道统一地进行循环编号。
实现方式 B时, 优选釆用以下 bl、 b2和 b3三种实现方式中任一种: bl、 在多个载波之间, 将在同一 TTI的多条共享信道釆用同一编号。 即 在同一 TTI 内, 将多个载波所承载的所有共享信道釆用同一编号, 在这种情 况下, 对于多个载波, 连续 TTI 内共享信道的编号连续且釆用不同编号。 例 如,参阅图 5所示,在 TTIt内,载波 i承载的控制载波 i的共享信道编号为 1; 在 TTIt+1内, 载波 i承载的控制载波 i的共享信道、 载波 i承载的控制载波 i+ 1的共享信道均编号为 1, 同时, 在 TTIt+1内, 载波 i+1承载的控制载波 i + 2的共享信道亦编号为 1; 在 TTI+2内, 载波 i承载的控制载波 i+ 1的共享 信道、 载波 i+1承载的控制载波 i的共享信道均编号为 2。 对共享信道进行编 号时, 不区分共享信道具体控制那个载波。
其他载波承载的共享信道的编号方式与载波 i相同, 在此不再赘述。
各共享信道的编号的最大值为 L (L为预设的自然数), 填充至共享信道 的信道传输信息(如, format)中, 以下实施例中均釆用相同方法携带共享信 道的编号, 亦不再赘述。
b2、 在多个载波之间, 将在同一 TTI的多条共享信道釆用不同编号, 即 在同一 TTI 内, 将多个载波所承载的所有共享信道釆用不同编号, 在这种情 况下, 对于多个载波, 连续 TTI内共享信道的编号连续且釆用不同编号; 例如, 参阅图 6所示, 在 TTIt+1内, 载波 i承载的控制载波 i的共享信 道编号为 1、 载波 i承载的控制载波 i+ 1的共享信道编号为 2, 同时, 在 TTIt + 1 内, 载波 i+1承载的控制载波 i + 2的共享信道编号为 3。 对共享信道进 行编号时, 不区分共享信道具体控制那个载波。
另一方面, 在釆用方式 b2进行编号时, 针对在同一 TTI的由多条载频波 承载的多条共享信道, 按照各共享信道所釆用的信道化码由低至高的顺序进 行循环编号, 或者, 按照各共享信道所控制的载波的频率由低至高的顺序进 行循环编号。
b3、 在多个载波之间, 针对在不同 TTI但控制同一载波的共享信道进行 循环编号, 即在不同 TTI 内, 针对多个载波所承载的控制同一载波的共享信 道进行循环编号。
例如, 参阅图 7所示, 在 TTI t内, 载波 i承载的控制载波 i的共享信道 编号为 0,而在 TTI t + 1内,载波 i + 1承载的控制载波 i的共享信道编号为 1 , 在 TTI t + 2内, 载频 i承载的控制载波 i的共享信道编号为 2; 同理, 在 TTI t + 1内, 载波 i承载的控制载波 i + 1的共享信道编号为 0, 而在 TTI t + 2内, 载频 i + 1承载的控制载波 i + 1的共享信道编号为 1。 其编号方式彼此独立, 互不干扰; 并且由于控制某一载波的共享信道在一个 TTI内只允许出现一次, 因此不会出现编号冲突。
基于上述实施例, 参阅图 8所示, 本发明实施例中, 接收端根据发送端 的指示进行功率控制的详细流程如下:
步骤 800: 接收端接收发送端釆用步骤 100 -步骤 120发送的各共享信道 的编号。
实际应用中, 接收端接收到发送端通过各共享信道传送的数据时, 先要 对该数据进行循环冗余校验码(CRC )校验, 确认数据正确时, 再读取出共 享信道的编号进行连续性判断, 以下实施例中均釆用此种方式, 将不再赘述。
步骤 810: 接收端以 TTI为单位,根据多个载波承载的各共享信道的编号 的连续性统计该多个载波的误块率。
步骤 820: 接收端基于统计的多个载波的误块率, 重新设置上述多个载波 的目标信噪比。
上述实施例中, 在执行步骤 810时, 包含但不限于以下 X、 Y、 Ζ三种实 现方式:
方式 X、 若发送端以 TTI为单位分别针对上述多个载波各自承载的共享 信道进行独立循环编号, 则接收端分别针对上述多个载波独立地进行误块率 统计。
在实现方式 X时, 又分为以下 xl、 x2和 x3三种实现方式:
xl、 若发送端在同一 TTI 内, 将同一载波承载的多条共享信道釆用同一 编号, 则接收端分别针对上述多个载波, 判断在当前 TTI接收的共享信道的 编号中, 满足连续性的编号数目是否达到设定门限值(如, 1条), 若是, 则 确定未丟失信道, 否则, 确定丟失信道, 以及基于判断结果分别统计上述多 个载波的误块率。
接收端分别针对上述多个载波进行误块率统计后, 还需根据上述多个载 波各自的误块率, 分别针对上述多个载波重新设置相应的目标信噪比。
例如: 载波 i上承载的共享信道为 HS-SCCH, 并且发送端釆用 al方式进 行编号, 那么, 接收端接收到发送端传送的数据后, 先进行 CRC检验, 校验 通过后, 读取各 HS-SCCH的 HCSN, 假设接收端在 TTI t内接收的 HS-SCCH 1的 HCSN为 0 , HS-SCCH 2的 HCSN为 0 , 则:
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 1 , HS-SCCH 2 的 HCSN为 1 , 两条 HS-SCCH的 HCSN与 TTI t内的 HS-SCCH的 HCSN均 保持连续, 则确定在 TTI t+1内未丟失 HS-SCCH;
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 2 , HS-SCCH2 的 HCSN为 2 , 两条 HS-SCCH的 HCSN与 TTI t内的 HS-SCCH的 HCSN均 未保持连续, 即未在 TTI t+1内收到上述两条 HS-SCCH的 HCSN, 则确定在 TTI t+1内丟失 HS-SCCH;
那么, 载波 i上, 没有接收到 HCSN为 1的 HS-SCCH信道, 接收到了 HCSN为 0 , 2的 HS-SCCH信道, 即正确接收块数为 2 , 丟失的块数为 1 , 通 过一段时间的持续统计, 计算得到载频 i的误块率 BLER。 通过仿真, 可以得 到不同信道环境下, BLER与信噪比 (SIR ) 的对应关系曲线, 表 1中提供了 HS-SCCH信道在不同信道环境下, 在 BLER为 0.01时, 所需求的信噪比。 假
设, 统计得到的 BLER为 0.015 , 证明此时的信道环境恶化了, 原目标信噪比 不能满足 BLER为 0.01的要求了, 需将载波 i的目标信噪比由 -9.40dB重新设 置为 -8.61dB , 从而完成了 HS-SCCH信道的外环功率控制。 其中, BLER与 SIR之间的对应关系, 取决于具体的算法实现, 表 1只是给出一个示例。
表 1
上述实施例同样适用于多载波系统中的 E-AGCH信道, E-AGCH与其调 度的 E-PUCH通常情况下共载波,例如,调度载波 i的共享信道全部承载在载 频 i上, 对于这种情况, 上述实施例同样适用, 在此不再赘述。
x2、 若发送端在在同一 TTI 内, 将同一载波承载的多条共享信道釆用不 同编号, 则接收端分别针对上述多个载波, 判断在当前 TTI接收的所有共享 信道的编号是否均满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定 丟失共享信道, 以及基于判断结果分别统计上述多个载波的误块率。
接收端分别针对上述多个载波进行误块率统计后, 还需根据上述多个载 波各自的误块率, 分别针对上述多个载波重新设置相应的目标信噪比。
例如: 载波 i上承载的共享信道为 HS-SCCH, 并且发送端釆用 a2方式进 行编号, 那么, 接收端接收到发送端传送的数据后, 先进行 CRC检验, 校验 通过后, 读取各 HS-SCCH的 HCSN, 假设接收端在 TTI t内接收的 HS-SCCH 1的 HCSN为 0, HS-SCCH 2的 HCSN为 1 , 则:
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 2, HS-SCCH 2 的 HCSN为 3 ,两条 HS-SCCH的 HCSN与 ΤΉ内的 HS-SCCH的 HCSN均保 持连续, 则确定在 TTI t+1内未丟失 HS-SCCH;
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 3 , HS-SCCH2 的 HCSN为 4, HS-SCCH的 HCSN与 TTI t内的 HS-SCCH的 HCSN未保持 连续, 即在 TTI t+1内未收到 HCSN为 2的 HS-SCCH信道,则确定在 TTI t+1
内丟失 HS-SCCH;
那么, 载波 i上, 没有接收到 HCSN为 2的 HS-SCCH信道, 接收到了 HCSN为 0 , 1 , 3 , 4的 HS-SCCH信道, 即正确接收块数为 4 , 丟失的块数为 1 , 通过一段时间的持续统计, 计算得到载频 i的误块率 BLER。 通过仿真, 可以得到不同信道环境下, BLER 与 SIR 的对应关系曲线, 表 1 中提供了 HS-SCCH信道在不同信道环境下, 在 BLER为 0.01时, 所需求的信噪比。 假 设, 统计得到的 BLER为 0.015 , 证明此时的信道环境恶化了, 原目标信噪比 不能满足 BLER为 0.01的要求, 需将载波 i的目标信噪比由 -9.40dB重新设置 为 -8.61dB, 从而完成了 HS-SCCH信道的外环功率控制。
上述实施例同样适用于多载波系统中的 E-AGCH信道, E-AGCH与其调 度的 E-PUCH通常情况下共载波,例如,调度载波 i的共享信道全部承载在载 频 i上, 对于这种情况, 上述实施例同样适用, 在此不再赘述。
x3、 若发送端在不同 TTI 内, 对同一载波承载的控制同一载波的共享信 道进行循环编号, 则接收端分别针对上述多个载波, 判断在当前 TTI接收的 控制某一载波的共享信道的编号是否满足连续性, 若是, 则确定未丟失共享 信道, 否则, 确定丟失共享信道, 以及基于判断结果分别统计上述多个载波 的误块率。
接收端分别针对上述多个载波进行误块率统计后, 还需根据上述多个载 波各自的误块率, 分别针对上述多个载波重新设置相应的目标信噪比。
例如: 载波 i上承载着控制载波 i的共享信道 HS-SCCH1 , 控制载波 i+1 的共享信道 HS-SCCH 2, 并且发送端釆用 a3方式进行编号, 那么, 接收端接 收到发送端传送的数据后,先进行 CRC检验,校验通过后,读取各 HS-SCCH 的 HCSN,假设接收端在 TTI t内接收的 HS-SCCH 1的 HCSN为 0, HS-SCCH 2的 HCSN为 1 , 则:
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 1 , HS-SCCH 2 的 HCSN为 2 , 两条 HS-SCCH的 HCSN与 TTIt内的 HS-SCCH的 HCSN均 保持连续, 则确定在 TTI t+1内未丟失 HS-SCCH;
若接收端在 ΤΉ t + 2内接收到的 HS-SCCH 1的 HCSN为 2, HS-SCCH2 的 HCSN为 3 , HS-SCCH的 HCSN与 ΤΉ t内的 HS-SCCH的 HCSN未保持 连续, 即在 TTI t+1 内未收到 HCSN为 1 的 HS-SCCH 1和 HCSN为 2的 HS-SCCH 2, 则确定在 TTI t+1内丟失 HS-SCCH;
那么, 对于控制载波 i的共享信道, 没有接收到 HCSN为 1的 HS-SCCH 信道, 接收到了 HCSN为 0, 2的 HS-SCCH信道, 即正确接收块数为 2 , 丟 失的块数为 1 ; 控制载波 i+1的共享信道, 没有收到编号为 2的 HS-SCCH信 道, 收到了编号为 1 , 3的 HS-SCCH信道; 总的丟块数目为 1 + 1 = 2 , 总的接 收到的块数为 2+2 = 4。 通过一段时间的持续统计, 计算得到载波 i 的误块率 BLER。 通过仿真, 可以得到不同信道环境下, BLER与 SIR的对应关系曲线, 表 1中提供了 HS-SCCH信道在不同信道环境下, 在 BLER为 0.01时, 所需 求的信噪比。 4艮设,统计得到的 BLER为 0.015 ,证明此时的信道环境恶化了, 原目标信噪比不能满足 BLER为 0.01 的要求, 需将载波 i 的目标信噪比由 -9.40dB重新设置为 -8.61dB , 从而完成了 HS-SCCH信道的外环功率控制。
上述实施例同样适用于多载波系统中的 E-AGCH信道, E-AGCH与其调 度的 E-PUCH通常情况下共载波,例如,调度载波 i的共享信道全部承载在载 频 i上, 对于这种情况, 上述实施例同样适用, 在此不再赘述。
方式 Y、 若发送端以 TTI为单位, 分别针对上述多个载波各自承载的共 享信道进行独立循环编号, 则接收端针对上述多个载波统一进行误块率统计。
在实现方式 Y时, 又分为以下 yl、 y2和 y3三种实现方式:
yl、 若发送端在同一 TTI 内, 将同一载波承载的多条共享信道釆用同一 编号, 则接收端分别针对上述多个载波, 判断在当前 TTI接收的共享信道的 编号中, 满足连续性的编号数目是否达到设定门限值, 若是, 则确定未丟失 信道, 否则, 确定丟失信道, 以及基于判断结果统一统计上述多个载波的误 块率。
上述接收端针对上述多个载波统一进行误块率统计后, 还需根据获得的 误块率, 针对上述多个载波统一重新设置相应的目标信噪比。
例如: 载波 i上承载的控制载波 i共享信道为 HS-SCCHl , 控制载波 i+2 的共享信道为 HS-SCCH2 , 载波 i+1 上承载的控制载波 i+1 的共享信道为 HS-SCCH3 , 并且发送端釆用 al方式进行编号, 那么, 接收端接收到发送端 传送的数据后, 先进行 CRC检验, 校验通过后, 读取各 HS-SCCH的 HCSN, 假设接收端在 TTI t内接收的 HS-SCCH 1的 HCSN为 0 , HS-SCCH 2的 HCSN 为 0, HS-SCCH3的 HCSN为 1 , 则:
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 1 , HS-SCCH 2 的 HCSN为 1 , 两条 HS-SCCH的 HCSN与 TTI t内的 HS-SCCH的 HCSN均 保持连续, 则确定载波 i在 TTI t+1内未丟失 HS-SCCH; 若接收端在 TTI t+2 内接收到的 HS-SCCH 3的 HCSN为 2 , HS-SCCH的 HCSN与 TTI t内的 HS-SCCH的 HCSN保持连续,则确定载波 i+1在 TTI t+1内未丟失 HS-SCCH; 若接收端在 TTI t + 2内接收到的 HS-SCCH 1的 HCSN为 2, HS-SCCH2 的 HCSN为 2, 两条 HS-SCCH的 HCSN与 TTI t内的 HS-SCCH的 HCSN均 未保持连续, 即 TTI t+1内未收到 HCSN为 1的 HS-SCCH 1和 HS-SCCH 2, 则确定载波 i在 TTI t+1 内丟失 HS-SCCH; 若接收端在 TTI t+2内接收到的 HS-SCCH 3的 HCSN为 3 , HS-SCCH的 HCSN与 TTI t内的 HS-SCCH的 HCSN未保持连续, 即在 TTI t+1内未收到 HCSN为 2的 HS-SCCH 3 , 则确 定载波 i+1在 TTI t+1内丟失 HS-SCCH;
那么, 载波 i上, 没有接收到 HCSN为 1的 HS-SCCH信道, 接收到了 HCSN为 0, 2的 HS-SCCH信道, 即正确接收块数为 2, 丟失的块数为 1 , 载 波 i+1上, 没有收到 HCSN为 2的 HS-SCCH信道, 接收到了 HCSN为 1 , 3 的 HS-SCCH信道, 即正确接收的块数为 2, 丟失的块数为 1。 此时载波 i和 载波 i+1上, 共正确接收到的块数为 2 + 2 = 4 , 丟失的块数为 1 + 1 = 2。 通过一段 时间的持续统计, 计算得到总的误块率。 H没, 统计得到的 BLER为 0.015 , 基于表 1 ,证明此时的信道环境恶化了,原目标信噪比不能满足 BLER为 0.01 的要求, 需将所有载波的 HS-SCCH信道的目标信噪比由 -9.40dB重新设置为 -8.61dB, 从而完成了 HS-SCCH信道的外环功率控制。
上述实施例同样适用于多载波系统中的 E-AGCH信道, E-AGCH与其调 度的 E-PUCH通常情况下共载波,例如,调度载波 i的共享信道全部承载在载 频 i上, 对于这种情况, 上述实施例同样适用, 在此不再赘述。
y2、 若发送端在同一 TTI 内, 将同一载波承载的多条共享信道釆用不同 编号, 则接收端分别针对上述多个载波, 判断在当前 TTI接收的所有共享信 道的编号是否均满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟 失共享信道, 以及基于判断结果统一统计上述多个载波的误块率。
上述接收端针对上述多个载波统一进行误块率统计后, 还需根据获得的 误块率, 针对上述多个载波统一重新设置相应的目标信噪比。
例如: 载波 i上承载的控制载波 i共享信道为 HS-SCCH1 , 控制载波 i+2 的共享信道为 HS-SCCH2 , 载波 i+1 上承载的控制载波 i+1 的共享信道为 HS-SCCH3 , 并且发送端釆用 a2方式进行编号, 那么, 接收端接收到发送端 传送的数据后, 先进行 CRC检验, 校验通过后, 读取各 HS-SCCH的 HCSN, 假设接收端在 TTI t内接收的 HS-SCCH 1的 HCSN为 0 , HS-SCCH 2的 HCSN 为 1 , HS-SCCH3的 HCSN为 1 , 则:
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 2, HS-SCCH 2 的 HCSN为 3 , 两条 HS-SCCH的 HCSN均与 TTI t内的 HS-SCCH的 HCSN 均保持连续,则确定载波 i在 TTI t+1内未丟失 HS-SCCH;若接收端在 TTI t+2 内接收到的 HS-SCCH 3的 HCSN为 2 , HS-SCCH的 HCSN均与 TTI t内的 HS-SCCH的 HCSN保持连续,则确定载波 i+1在 TTI t+l内未丟失 HS-SCCH;
若接收端在 TTI t + 2内接收到的 HS-SCCH 1的 HCSN为 3 , HS-SCCH2 的 HCSN为 4, HS-SCCH的 HCSN与 TTI t内的 HS-SCCH的 HCSN未保持 连续,即在 TTI t+1内未收到 HCSN为 2的 HS-SCCH,则确定载波 i在 TTI t+1 内丟失 HS-SCCH;若接收端在 TTI t+2内接收到的 HS-SCCH 3的 HCSN为 3 , HS-SCCH的 HCSN均与 TTI t内的 HS-SCCH的 HCSN未保持连续,即在 TTI t+1 内未收到 HCSN为 2的 HS-SCCH, 则确定载波 i+1在 TTI t+1 内丟失 HS-SCCH;
那么, 载波 i上, 没有接收到 HCSN为 2的 HS-SCCH信道, 接收到了 HCSN为 0, 1 , 3 , 4的 HS-SCCH信道, 即正确接收块数为 4, 丟失的块数为 1 , 载波 i+1上, 没有收到 HCSN为 2的 HS-SCCH信道, 接收到了 HCSN为 1 , 3的 HS-SCCH信道, 即正确接收的块数为 2, 丟失的块数为 1.此时载波 i 和载波 i+1上, 共正确接收到的块数为 4 + 2 = 6 , 丟失的块数为 1 + 1 = 2。 通过一 段时间的持续统计, 计算得到误块率。 通过仿真, 可以得到不同信道环境下, BLER与 SIR的对应关系曲线。 假设, 统计得到的 BLER为 0.015, 基于表 1 , 证明此时的信道环境恶化了, 原目标信噪比不能满足 BLER为 0.01的要求, 需将所有载波的 HS-SCCH信道的目标信噪比由 -9.40dB重新设置为 -8.61dB, 从而完成了 HS-SCCH信道的外环功率控制。
上述实施例同样适用于多载波系统中的 E-AGCH信道, E-AGCH与其调 度的 E - PUCH通常情况下共载波, 例如, 调度载波 i的共享信道全部承载在 载频 i上, 对于这种情况, 上述实施例同样适用, 在此不再赘述。
y3、 若发送端在不同 TTI 内, 同一载波承载的控制同一载波的共享信道 进行循环编号, 则接收端分别针对上述多个载波, 判断在当前 TTI接收的控 制某一载波的共享信道的编号是否满足连续性, 若是, 则确定未丟失共享信 道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计上述多个载波的 误块率。
上述接收端针对上述多个载波统一进行误块率统计后, 还需根据获得的 误块率, 针对上述多个载波统一重新设置相应的目标信噪比。
例如: 载波 i上承载的控制载波 i共享信道为 HS-SCCH1 , 控制载波 i+2 的共享信道为 HS-SCCH2, 载波 i+1 上承载的控制载波 i+1 的共享信道为 HS-SCCH3 , 并且发送端釆用 a3方式进行编号, 那么, 接收端接收到发送端 传送的数据后, 先进行 CRC检验, 校验通过后, 读取各 HS-SCCH的 HCSN, 假设接收端在 TTI t内接收的 HS-SCCH 1的 HCSN为 0 , HS-SCCH 2的 HCSN 为 1 , HS-SCCH3的 HCSN为 1 , 则:
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 1 , HS-SCCH 2
的 HCSN为 2, 两条 HS-SCCH的 HCSN均与 TTI t内的 HS-SCCH的 HCSN 均保持连续,则确定载波 i在 TTI t + 1内未丟失 HS-SCCH;若接收端在 TTI t+2 内接收到的 HS-SCCH 3的 HCSN为 2, HS-SCCH的 HCSN均与 TTI t内的 HS-SCCH的 HCSN保持连续,则确定载波 i+1在 TTI t + 1内未丟失 HS-SCCH;
若接收端在 TTI t + 2内接收到的 HS-SCCH 1的 HCSN为 2, HS-SCCH2 的 HCSN为 3 , 两条 HS-SCCH的 HCSN与 TTI t内的 HS-SCCH的 HCSN均 未保持连续, 即在 TTI t + 1内未收到 HCSN为 1的 HS-SCCH1和 HCSN为 2 的 HS-SCCH2,则确定载波 在11^ + 1内丟失 HS-SCCH;若接收端在 TTI t+2 内接收到的 HS-SCCH 3的 HCSN为 3 , HS-SCCH的 HCSN均与 TTI t内的 HS-SCCH 的 HCSN 未保持连续, 即在 TTI t + 1 内未收到 HCSN为 2 的 HS-SCCH3 , 则确定载波 i+1在 TTI t + 1内丟失 HS-SCCH;
那么, 载波 i上, 控制载波 i 的共享信道, 没有接收到 HCSN为 1 的 HS-SCCH信道,接收到了 HCSN为 0 , 2的 HS-SCCH信道, 即正确接收块数 为 2, 丟失的块数为 1 , 控制载波 i+2的共享信道, 没有接收到 HCSN为 2, 接收到了 HCSN为 1 , 3的 HS-SCCH信道, 即正确接收的块数为 2, 丟失的 块数为 1 , 此时载波 i上正确接收到的块数为 2 + 2 = 4 , 丟失的块数为 1 + 1 = 2。 载波 i+1 上没有收到编号为 2 的 HS-SCCH信道, 接收到了编号为 1 , 3 的 HS-SCCH信道, 即正确接收的块数为 2 , 丟失的块数为 1.此时载波 i和载波 i+1上, 共正确接收到的块数为 4 + 2 = 6 , 丟失的块数为 2 + 1 = 3。 通过一段时间 的持续统计, 计算得到误块率。 通过仿真, 可以得到不同信道环境下, BLER 与 SIR的对应关系曲线。 假设, 统计得到的 BLER为 0.015 , 基于表 1 , 证明 此时的信道环境恶化了, 原有目标信噪比不能满足 BLER为 0.01的要求, 需 将所有载波的 HS-SCCH信道的目标信噪比由 -9.40dB重新设置为 -8.61dB , 从 而完成了 HS-SCCH信道的外环功率控制。
上述实施例同样适用于多载波系统中的 E-AGCH信道, E-AGCH与其调 度的 E - PUCH通常情况下共载波, 例如, 调度载波 i的共享信道全部承载在 载频 i上, 对于这种情况, 上述实施例同样适用, 在此不再赘述。
方式 Z、 若发送端以 TTI为单位, 针对上述多个载波各自承载的共享信 道进行联合循环编号, 则接收端针对上述多个载波统一进行误块率统计。
在实现方式 Z时, 又分为以下 zl、 z2和 z3三种实现方式:
zl、若发送端在同一 TTI, 将多个载波所承载的所有共享信道釆用同一编 号, 则接收端针对所述多个载波, 判断在当前 TTI接收的共享信道的编号中, 满足连续性的编号数目是否达到设定门限值, 若是, 则确定未丟失信道, 否 则, 确定丟失信道, 以及基于判断结果统一统计上述多个载波的误块率。
接收端针对上述多个载波统一进行误块率统计后, 还需根据获得的误块 率, 针对上述多个载波统一重新设置相应的目标信噪比。
例如: 载波 i上承载的控制载波 i共享信道为 HS-SCCH1 , 控制载波 i+2 的共享信道为 HS-SCCH2 , 载波 i+1 上承载的控制载波 i+1 的共享信道为 HS-SCCH3 , 并且发送端釆用 bl方式进行编号, 那么, 接收端接收到发送端 传送的数据后, 先进行 CRC检验, 校验通过后, 读取各 HS-SCCH的 HCSN, 假设接收端在 TTI t内接收的 HS-SCCH 1的 HCSN为 0 , HS-SCCH 2的 HCSN 为 0, HS-SCCH3的 HCSN为 0, 则:
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 1 , HS-SCCH 2 的 HCSN为 1 , 若接收端在 TTI t+2内接收到的 HS-SCCH 3的 HCSN为 1 , HS-SCCH的 HCSN均与 TTI t内的 HS-SCCH的 HCSN保持连续, 则确定在 TTI t+1内未丟失 HS-SCCH;
若接收端在 TTI t + 2内接收到的 HS-SCCH 1的 HCSN为 2, HS-SCCH2 的 HCSN为 2, HS-SCCH 3的 HCSN为 2, HS-SCCH的 HCSN均与 TTI t内 的 HS-SCCH的 HCSN未保持连续, 即在 TTI t+1 内未收到 HCSN为 1 的 HS-SCCH 1~ HS-SCCH 3 , 则确定在 TTI t+1内丟失 HS-SCCH;
那么, 没有接收到 HCSN为 1的 HS-SCCH信道, 接收到了 HCSN为 0, 2的 HS-SCCH信道, 即正确接收块数为 2, 丟失的块数为 1 , 通过一段时间 的持续统计, 计算得到误块率。 通过仿真, 可以得到不同信道环境下, BLER 与 SIR的对应关系曲线。 假设, 统计得到的 BLER为 0.015 , 基于表 1 , 证明
此时的信道环境恶化了, 原有目标信噪比不能满足 BLER为 0.01的要求, 需 将所有载波的 HS-SCCH信道的目标信噪比由 -9.40dB重新设置为 -8.61dB , 从 而完成了 HS-SCCH信道的外环功率控制。
上述实施例同样适用于多载波系统中的 E-AGCH信道, E-AGCH与其调 度的 E - PUCH通常情况下共载波, 例如, 调度载波 i的共享信道全部承载在 载频 i上, 对于这种情况, 上述实施例同样适用, 在此不再赘述。
z2、 若发送端在同一 TTI 内, 将多个载波所承载的所有共享信道釆用不 同编号, 则接收端针对所述多个载波, 判断在当前 TTI接收的所有共享信道 的编号是否均满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟失 共享信道, 以及基于判断结果统一统计所述多个载波的误块率。
接收端针对上述多个载波统一进行误块率统计后, 还需根据获得的误块 率, 针对上述多个载波统一重新设置相应的目标信噪比。
例如: 载波 i上承载的控制载波 i共享信道为 HS-SCCH1 , 控制载波 i+2 的共享信道为 HS-SCCH2 , 载波 i+1 上承载的控制载波 i+1 的共享信道为 HS-SCCH3 , 并且发送端釆用 b2方式进行编号, 那么, 接收端接收到发送端 传送的数据后, 先进行 CRC检验, 校验通过后, 读取各 HS-SCCH的 HCSN, 假设接收端在 TTI t内接收的 HS-SCCH 1的 HCSN为 0 , HS-SCCH 2的 HCSN 为 1 , HS-SCCH3的 HCSN为 2, 则:
若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 3 , HS-SCCH 2 的 HCSN为 4, HS-SCCH 3的 HCSN为 5 , HS-SCCH的 HCSN均与 TTI t 内的 HS-SCCH的 HCSN保持连续, 则确定在 TTI t+1内未丟失 HS-SCCH;
若接收端在 TTI t + 2内接收到的 HS-SCCH 1的 HCSN为 5 , HS-SCCH2 的 HCSN为 6, HS-SCCH 3的 HCSN为 7 , HS-SCCH的 HCSN均与 TTI t内 的 HS-SCCH的 HCSN未保持连续, 即在 TTI t+1内未收到 HCSN为 3 , 4的 HS-SCCH, 则确定在 TTI t+1内丟失 HS-SCCH;
那么, 没有接收到 HCSN为 3 , 4的 HS-SCCH信道, 接收到了 HCSN为 0, 1 , 2, 5 , 6 , 7的 HS-SCCH信道, 即正确接收块数为 6 , 丟失的块数为 2。
通过一段时间的持续统计, 计算得到误块率。 通过仿真, 可以得到不同信道 环境下, BLER与 SIR的对应关系曲线。 假设, 统计得到的 BLER为 0.015 , 基于表 1 , 证明此时的信道环境恶化了, 原有目标信噪比不能满足 BLER为 0.01的要求, 需将所有载波的 HS-SCCH信道的目标信噪比由 -9.40dB重新设 置为 -8.61dB, 从而完成了 HS-SCCH信道的外环功率控制。
上述实施例同样适用于多载波系统中的 E-AGCH信道, E-AGCH与其调 度的 E - PUCH通常情况下共载波, 例如, 调度载波 i的共享信道全部承载在 载频 i上, 对于这种情况, 上述实施例同样适用, 在此不再赘述。
z3、 若发送端在不同 TTI 内, 针对多个载波所承载控制同一载波的共享 信道进行循环编号, 则接收端针对所述多个载波, 判断在当前 TTI接收的控 制某一载波的共享信道的编号是否满足连续性, 若是, 则确定未丟失共享信 道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计上述多个载波的 误块率。
接收端针对上述多个载波统一进行误块率统计后, 还需根据获得的误块 率, 针对上述多个载波统一重新设置相应的目标信噪比。
例如: 载波 i上承载的控制载波 i共享信道为 HS-SCCH 1 , 控制载波 i+2 的共享信道为 HS-SCCH 2, 载波 i+1 上承载的控制载波 i+1 的共享信道为 HS-SCCH 3 , 控制载波 i+2的共享信道 HS-SCCH4, 并且发送端釆用 b3方式 进行编号, 那么, 接收端接收到发送端传送的数据后, 先进行 CRC检验, 校 验通过后,读取各 HS-SCCH的 HCSN,假设接收端在 TTI t内接收的 HS-SCCH 1的 HCSN为 0, HS-SCCH 2的 HCSN为 1 , HS-SCCH3的 HCSN为 1 , 则: 若接收端在 TTI t+2内接收到的 HS-SCCH 1的 HCSN为 1 , 其 HCSN与 TTI t 内的 HS-SCCH 的 HCSN保持连续, 则确定控制载波 i 的共享信道 HS-SCCH在 TTI t+1内未丟失。 HS-SCCH 4的 HCSN为 2, 其 HCSN与 TTI t 内的 HS-SCCH的 HCSN保持连续, 则确定控制载波 i+2的 HS-SCCH信道在 TTI t+1内未丟失。 HS-SCCH 3的 HCSN为 2,其 HCSN与 TTI t内的 HS-SCCH 的 HCSN保持连续, 则确定控制载波 i+1的 HS-SCCH信道在 TTI t+1内未丟
失。
若接收端在 ΤΉ t + 2内接收到的 HS-SCCH 1的 HCSN为 2, HS-SCCH4 的 HCSN为 3 , 两条 HS-SCCH的 HCSN与 ΤΉ t内的 HS-SCCH的 HCSN均 未保持连续,即在 TTI t+1内未收到 HCSN为 1的 HS-SCCH 1和控制载波 i+2 的 HCSN为 2的 HS-SCCH; HS-SCCH 3的 HCSN为 3 , 其 HCSN与 TTI t内 的 HS-SCCH的 HCSN未保持连续, 即在 TTI t+1 内未收到 HCSN为 2的 HS-SCCH 3 , 则确定在 TTI t+1内丟失 HS-SCCH;
那么,控制载波 i的共享信道,没有接收到 HCSN为 1的 HS-SCCH信道, 接收到了 HCSN为 0, 2的 HS-SCCH信道, 即正确接收块数为 2, 丟失的块 数为 1 ,控制载波 i+2的共享信道,没有接收到 HCSN为 2的 HS-SCCH信道, 接收到了 HCSN为 1 , 3的 HS-SCCH信道, 即正确接收的块数为 2, 丟失的 块数为 1 ,控制载波 i+1的共享信道,没有收到 HCSN为 2的 HS-SCCH信道, 接收到了 HCSN为 1 , 3的 HS-SCCH信道, 即正确接收的块数为 2, 丟失的 块数为 1。 此时载波 i和载波 i+1上, 共正确接收到的块数为 2+ 2 + 2 = 6 , 丟失 的块数为 1 + 1 + 1 = 3。 通过一段时间的持续统计, 计算得到误块率。 通过仿真, 可以得到不同信道环境下, BLER与 SIR的对应关系曲线。 4叚设, 统计得到的 BLER为 0.015 , 基于表 1 , 证明此时的信道环境恶化了, 原有目标信噪比不 能满足 BLER为 0.01的要求, 需将所有载波的 HS-SCCH信道的目标信噪比 由 -9.40dB重新设置为 -8.61dB, 从而完成了 HS-SCCH信道的外环功率控制。
上述实施例同样适用于多载波系统中的 E-AGCH信道, E-AGCH与其调 度的 E - PUCH通常情况下共载波, 例如, 调度载波 i的共享信道全部承载在 载频 i上, 对于这种情况, 上述实施例同样适用, 在此不再赘述。
综上所述, 本发明实施例中, 针对多载波系统, 提出了发送端针对共享 信道的循环编号方法, 以及依照不同循环编号方法, 接收端通过判断编号是 否连续, 统计误块率, 调整目标信噪比, 从而完成多载波系统共享信道的外 环功率控制的方法, 进而在多载波系统中实现了准确、 有效地外环功率控制, 提高了系统性能。
参阅图 9所示, 本发明实施例中, 用于功率控制的指示系统中包括发送 端和接收端, 其中,
发送端, 用于确定传送数据需使用的多个载波, 并以 TTI为单位, 对所 述多个载波各自承载的共享信道进行循环编号, 以及利用所述多个载波将各 共享信道的编号传送至接收端, 指示接收端根据各共享信道的编号的连续性 执行相应的功率控制。
接收端, 用于接收发送端釆用上述方式发送的各共享信道的编号, 并以 TTI为单位,根据各共享信道的编号的连续性统计所述多个载波的误块率, 以 及基于统计的所述多个载波的误块率, 重新设置所述多个载波的目标信噪比。
参阅图 10所示, 本发明实施例中, 一种功率控制的装置, 即发送端, 包 括确定单元 10、 编号单元 11和通信单元 12, 其中,
确定单元 10, 用于确定传送数据需使用的多个载波;
编号单元 11 , 用于以 TTI为单位, 对所述多个载波各自承载的共享信道 进行循环编号;
通信单元 12,用于利用所述多个载波将各共享信道的编号传送至接收端, 指示接收端根据各共享信道的编号的连续性执行相应的功率控制。
参阅图 11所示, 本发明实施例中, 一种功率控制的装置, 即接收端, 包 括通信单元 20、 统计单元 21和处理单元 22, 其中,
通信单元 20, 用于接收上述发送端发送的各共享信道的编号;
统计单元 21 , 用于以 TTI为单位, 根据各共享信道的编号的连续性统计 所述多个载波的误块率;
处理单元 22, 用于基于统计的所述多个载波的误块率, 重新设置所述多 个载波的目标信噪比。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或 计算机程序产品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实施例的形式。 而且, 本发明可釆用在一个或多个 其中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘
存储器、 CD-ROM、 光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产 品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图 和 /或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中的流程 和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器, 使得通 过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流 程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品, 该指令装置实现在流程图一个流程或 多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的 处理, 从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步 骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了 基本创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权 利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。 发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。
Claims
1、 一种功率控制的方法, 其特征在于, 包括:
发送端确定传送数据需使用的多个载波;
发送端以传输时间间隔 TTI为单位, 对所述多个载波各自承载的共享信 道进行循环编号;
发送端利用所述多个载波将各共享信道的编号传送至接收端, 指示接收 端根据各共享信道的编号的连续性执行相应的功率控制。
2、 如权利要求 1所述的方法, 其特征在于, 所述发送端以 TTI为单位, 对所述多个载波各自承载的共享信道进行循环编号, 包括:
以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立循环编号; 或者,
以 TTI为单位, 针对所述多个载波各自承载的共享信道进行联合循环编 号。
3、 如权利要求 2所述的方法, 其特征在于, 所述发送端以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立循环编号时, 包括:
在同一 TTI内, 将同一载波承载的多条共享信道釆用同一编号; 或者 在同一 TTI内, 将同一载波承载的多条共享信道釆用不同编号; 或者 在不同 TTI 内, 将同一载波^ ^载的控制同一载波的共享信道进行循环编 号。
4、 如权利要求 2所述的方法, 其特征在于, 所述发送端以 TTI为单位, 针对所述多个载波各自承载的共享信道进行联合循环编号, 包括:
在同一 TTI内, 将多个载波承载的所有共享信道釆用同一编号; 或者 在同一 TTI内, 将多个载波承载的所有共享信道釆用不同编号; 或者 在不同 TTI 内, 将多个载波^ ^载的控制同一载波的共享信道进行循环编 号。
5、 如权利要求 3或 4所述的方法, 其特征在于, 所述发送端在同一 ΤΉ 内, 将同一载波或多个载波承载的共享信道釆用不同编号时, 按照各共享信 道所釆用的信道化码由低至高的顺序进行循环编号, 或者, 按照各共享信道 所控制的载波的频率由低至高的顺序进行循环编号。
6、 如权利要求 1-4任一项所述的方法, 其特征在于, 所述共享信道为增 强上行专用信道绝对授权信 E-AGCH 或高速下行共享信道的共享控制信道 HS-SCCH。
7、 如权利要求 1-4任一项所述的方法, 其特征在于, 所述发送端为基站 或用户终端。
8、 如权利要求 2-4任一项所述的方法, 其特征在于, 所述发送端确定传 送数据需使用的多个载波之前, 还包括;
釆用高层信令、 物理信令或者协议标准和接收端预先约定共享信道的循 环编号方式。
9、 一种功率控制的方法, 其特征在于, 包括:
接收端接收发送端釆用如权利要求 1 所述的方法发送的各共享信道的编 号;
接收端以传输时间间隔 TTI为单位, 根据各共享信道的编号的连续性统 计所述多个载波的误块率;
接收端基于统计的所述多个载波的误块率, 重新设置所述多个载波的目 标信噪比。
10、 如权利要求 9 所述的方法, 其特征在于, 所述接收端根据多个载波 承载的各共享信道的编号的连续性统计所述多个载波的误块率, 包括:
若发送端以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立 循环编号, 则接收端分别针对所述多个载波进行误块率统计; 或者,
若发送端以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立 循环编号, 则接收端针对所述多个载波统一进行误块率统计; 或者
若发送端以 TTI为单位, 针对所述多个载波各自承载的共享信道进行联 合循环编号, 则接收端针对所述多个载波统一进行误块率统计。
11、 如权利要求 10所述的方法, 其特征在于, 若发送端以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立循环编号, 则接收端分别针对 所述多个载波进行误块率统计时, 包括:
若发送端在同一 TTI内, 将同一载波承载的多条共享信道釆用同一编号, 则所述接收端分别针对所述多个载波, 判断在当前 TTI接收的共享信道的编 号中, 满足连续性的编号数目是否达到设定门限值, 若是, 则确定未丟失共 享信道, 否则, 确定丟失共享信道, 以及基于判断结果分别统计所述多个载 波的误块率; 或者
若发送端在同一 TTI内, 将同一载波承载的多条共享信道釆用不同编号, 则所述接收端分别针对所述多个载波, 判断在当前 TTI接收的所有共享信道 的编号是否均满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟失 共享信道, 以及基于判断结果分别统计所述多个载波的误块率; 或者
若发送端在不同 TTI 内, 将同一载波承载的控制同一载波的共享信道进 行循环编号, 则所述接收端分别针对所述多个载波, 判断在当前 TTI接收的 控制某一载波的共享信道的编号是否满足连续性, 若是, 则确定未丟失共享 信道, 否则, 确定丟失共享信道, 以及基于判断结果分别统计所述多个载波 的误块率。
12、 如权利要求 11所述的方法, 其特征在于, 所述接收端分别针对所述 多个载波进行误块率统计后, 根据所述多个载波各自的误块率, 分别针对所 述多个载波重新设置相应的目标信噪比。
13、 如权利要求 10所述的方法, 其特征在于, 若发送端以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立循环编号, 则接收端针对所述 多个载波统一进行误块率统计时, 包括:
若发送端在同一 TTI内, 将同一载波承载的多条共享信道釆用同一编号, 则所述接收端分别针对所述多个载波, 判断在当前 TTI接收的共享信道的编 号中, 满足连续性的编号数目是否达到设定门限值, 若是, 则确定未丟失共 享信道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计所述多个载 波的误块率; 或者
若发送端在同一 TTI内, 将同一载波承载的多条共享信道釆用不同编号, 则所述接收端分别针对所述多个载波, 判断在当前 TTI接收的所有共享信道 的编号是否均满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟失 共享信道, 以及基于判断结果统一统计所述多个载波的误块率; 或者
若发送端在不同 TTI 内, 将同一载波承载的控制同一载波的共享信道进 行循环编号, 则所述接收端分别针对所述多个载波, 判断在当前 TTI接收的 控制某一载波的共享信道的编号是否满足连续性, 若是, 则确定未丟失共享 信道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计所述多个载波 的误块率。
14、 如权利要求 13所述的方法, 其特征在于, 所述接收端针对所述多个 载波统一进行误块率统计后, 根据获得的误块率, 针对所述多个载波统一重 新设置相应的目标信噪比。
15、 如权利要求 10所述的方法, 其特征在于, 若发送端以 TTI为单位, 针对所述多个载波各自承载的共享信道进行联合循环编号, 则接收端针对所 述多个载波统一进行误块率统计, 包括:
若发送端在同一 TTI内, 将多个载波承载的所有共享信道釆用同一编号, 则所述接收端针对所述多个载波, 判断在当前 TTI接收的共享信道的编号中, 满足连续性的编号数目是否达到设定门限值, 若是, 则确定未丟失共享信道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计所述多个载波的误块 率; 或者
若发送端在同一 TTI内, 将多个载波承载的所有共享信道釆用不同编号, 则所述接收端针对所述多个载波, 判断在当前 TTI接收的所有共享信道的编 号是否均满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟失共享 信道, 以及基于判断结果统一统计所述多个载波的误块率; 或者
若发送端在不同 TTI 内, 将多个载波承载的控制同一载波的共享信道进 行循环编号, 则所述接收端针对所述多个载波, 判断在当前 TTI接收的控制 某一载波的共享信道的编号是否满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计所述多个载波的误块 率。
16、 如权利要求 15所述的方法, 其特征在于, 所述接收端针对所述多个 载波统一进行误块率统计后, 根据获得的误块率, 针对所述多个载波统一重 新设置相应的目标信噪比。
17、 如权利要求 9-16任一项所述的方法, 其特征在于, 所述共享信道为 增强上行专用信道绝对授权信 E-AGCH或高速下行共享信道的共享控制信道 HS-SCCH。
18、 如权利要求 9-16任一项所述的方法, 其特征在于, 所述接收端为基 站或用户终端。
19、 如权利要求 17所述的方法, 其特征在于, 所述发送端与接收端釆用 高层信令、 物理信令或者协议标准预先约定共享信道的循环编号方式。
20、 一种功率控制的装置, 其特征在于, 包括:
确定单元, 用于确定传送数据需使用的多个载波;
编号单元, 用于以传输时间间隔 TTI为单位, 对所述多个载波各自承载 的共享信道进行循环编号;
通信单元, 用于利用所述多个载波将各共享信道的编号传送至接收端, 指示接收端根据各共享信道的编号的连续性执行相应的功率控制。
21、 如权利要求 20所述的装置, 其特征在于, 所述编号单元以 TTI为单 位, 对所述多个载波各自承载的共享信道进行循环编号时, 以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立循环编号; 或者, 以 TTI为单 位, 针对所述多个载波各自承载的共享信道进行联合循环编号。
22、 如权利要求 21所述的装置, 其特征在于, 所述编号单元以 TTI为单 位, 分别针对每一个载波承载的共享信道进行独立循环编号时, 在同一 ΤΉ 内, 将同一载波承载的多条共享信道釆用同一编号; 或者, 在同一 TTI 内, 将同一载波承载的多条共享信道釆用不同编号; 或者, 在不同 TTI 内, 将同 一载波^^载的控制同一载波的共享信道进行循环编号。
23、 如权利要求 21所述的装置, 其特征在于, 所述编号单元以 TTI为单 位,针对所述多个载波各自承载的共享信道进行联合循环编号时,在同一 ΤΉ 内, 将多个载波承载的所有共享信道釆用同一编号; 或者, 在同一 TTI, 将多 个载波承载的所有共享信道釆用不同编号; 或者, 在不同 TTI, 将多个载波承 载的控制同一载波的共享信道进行循环编号。
24、 如权利要求 22或 23所述的装置, 其特征在于, 所述编号单元在同 — TTI 内, 将同一载波或多个载波承载的共享信道釆用不同编号时, 按照各 共享信道所釆用的信道化码由低至高的顺序进行循环编号, 或者, 按照各共 享信道所控制的载波的频率由低至高的顺序进行循环编号。
25、 如权利要求 22或 23所述的装置, 其特征在于, 所述装置为基站或 用户终端。
26、 一种功率控制的装置, 其特征在于, 包括:
通信单元, 用于接收釆用如权利要求 20所述的装置发送的各共享信道的 编号;
统计单元, 用于以传输时间间隔 TTI为单位, 根据各共享信道的编号的 连续性统计所述多个载波的误块率;
处理单元, 用于基于统计的所述多个载波的误块率, 重新设置所述多个 载波的目标信噪比。
27、 如权利要求 26所述的装置, 其特征在于, 所述统计单元根据多个载 波承载的各共享信道的编号的连续性统计所述多个载波的误块率时, 若发送 端以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立循环编号, 则所述统计单元分别针对所述多个载波进行误块率统计; 或者, 若发送端以 TTI为单位,分别针对每一个载波承载的共享信道进行独立循环编号, 则所述 统计单元针对所述多个载波统一进行误块率统计; 或者, 若发送端以 TTI为 单位, 针对所述多个载波各自承载的共享信道进行联合循环编号, 则所述统 计单元针对所述多个载波统一进行误块率统计。
28、 如权利要求 27所述的装置, 其特征在于, 若发送端以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立循环编号, 则所述统计单元分 别针对所述多个载波进行误块率统计时, 包括:
若发送端在同一 TTI内, 将同一载波承载的多条共享信道釆用同一编号, 则所述统计单元分别针对所述多个载波, 判断在当前 TTI接收的共享信道的 编号中, 满足连续性的编号数目是否达到设定门限值, 若是, 则确定未丟失 共享信道, 否则, 确定丟失共享信道, 以及基于判断结果分别统计所述多个 载波的误块率; 或者
若发送端在同一 TTI内, 将同一载波承载的多条共享信道釆用不同编号, 则所述统计单元分别针对所述多个载波, 判断在当前 TTI接收的所有共享信 道的编号是否均满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟 失共享信道, 以及基于判断结果分别统计所述多个载波的误块率; 或者
若发送端在不同 TTI 内, 将同一载波承载的控制同一载波的共享信道进 行循环编号, 则所述统计单元分别针对所述多个载波, 判断在当前 TTI接收 的控制某一载波的共享信道的编号是否满足连续性, 若是, 则确定未丟失共 享信道, 否则, 确定丟失共享信道, 以及基于判断结果分别统计所述多个载 波的误块率。
29、 如权利要求 28所述的装置, 其特征在于, 所述统计单元分别针对所 述多个载波进行误块率统计后, 所述处理单元根据所述多个载波各自的误块 率, 分别针对所述多个载波重新设置相应的目标信噪比。
30、 如权利要求 27所述的装置, 其特征在于, 若发送端以 TTI为单位, 分别针对每一个载波承载的共享信道进行独立循环编号, 则所述统计单元针 对所述多个载波统一进行误块率统计时, 包括:
若发送端在同一 TTI内, 将同一载波承载的多条共享信道釆用同一编号, 则所述统计单元分别针对所述多个载波, 判断在当前 TTI接收的共享信道的 编号中, 满足连续性的编号数目是否达到设定门限值, 若是, 则确定未丟失 共享信道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计所述多个 载波的误块率; 或者
若发送端在同一 TTI内, 将同一载波承载的多条共享信道釆用不同编号, 则所述统计单元分别针对所述多个载波, 判断在当前 TTI接收的所有共享信 道的编号是否均满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟 失共享信道, 以及基于判断结果统一统计所述多个载波的误块率; 或者
若发送端在不同 TTI 内, 将同一载波承载的控制同一载波的共享信道进 行循环编号, 则所述统计单元分别针对所述多个载波, 判断在当前 TTI接收 的控制某一载波的共享信道的编号是否满足连续性, 若是, 则确定未丟失共 享信道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计所述多个载 波的误块率。
31、 如权利要求 30所述的装置, 其特征在于, 所述统计单元针对所述多 个载波统一进行误块率统计后, 所述处理单元根据获得的误块率, 针对所述 多个载波统一重新设置相应的目标信噪比。
32、 如权利要求 27所述的装置, 其特征在于, 若发送端以 TTI为单位, 针对所述多个载波各自承载的共享信道进行联合循环编号, 则所述统计单元 针对所述多个载波统一进行误块率统计, 包括:
若发送端在同一 TTI内, 将多个载波承载的所有共享信道釆用同一编号, 则所述统计单元针对所述多个载波, 判断在当前 TTI接收的共享信道的编号 中, 满足连续性的编号数目是否达到设定门限值, 若是, 则确定未丟失共享 信道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计所述多个载波 的误块率; 或者
若发送端在同一 TTI内, 将多个载波承载的所有共享信道釆用不同编号, 则所述统计单元针对所述多个载波, 判断在当前 TTI接收的所有共享信道的 编号是否均满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟失共 享信道, 以及基于判断结果统一统计所述多个载波的误块率; 或者
若发送端在不同 TTI 内, 多个载波承载的控制同一载波的共享信道进行 循环编号, 则所述统计单元针对所述多个载波, 判断在当前 TTI接收的控制 某一载波的共享信道的编号是否满足连续性, 若是, 则确定未丟失共享信道, 否则, 确定丟失共享信道, 以及基于判断结果统一统计所述多个载波的误块 率。
33、 如权利要求 32所述的装置, 其特征在于, 所述统计单元针对所述多 个载波统一进行误块率统计后, 所述处理单元根据获得的误块率, 针对所述 多个载波统一重新设置相应的目标信噪比。
34、 如权利要求 26 - 33任一项所述的装置, 其特征在于, 所述装置为基 站或用户终端。
35、 一种功率控制的系统, 包括发送端和接收端, 其中,
所述发送端, 用于确定传送数据需使用的多个载波, 并以传输时间间隔 TTI为单位,对所述多个载波各自承载的共享信道进行循环编号, 以及利用所 述多个载波将各共享信道的编号传送至接收端, 指示接收端根据各共享信道 的编号的连续性执行相应的功率控制。
36、 一种功率控制的系统, 包括发送端和接收端, 其中,
所述接收端, 用于接收如权利要求 35所述的发送端发送的各共享信道的 编号, 并以传输时间间隔 TTI为单位, 才艮据各共享信道的编号的连续性统计 所述多个载波的误块率, 以及基于统计的所述多个载波的误块率, 重新设置 所述多个载波的目标信噪比。
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