CN101309520B - Method and apparatus for bearing public control channel data - Google Patents
Method and apparatus for bearing public control channel data Download PDFInfo
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- CN101309520B CN101309520B CN2008101261164A CN200810126116A CN101309520B CN 101309520 B CN101309520 B CN 101309520B CN 2008101261164 A CN2008101261164 A CN 2008101261164A CN 200810126116 A CN200810126116 A CN 200810126116A CN 101309520 B CN101309520 B CN 101309520B
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Abstract
The invention provides a method for high speed physical downlink shared channel to bear data of a common control channel, and the device thereof under the state of an enhanced cell forward access channel (CELL_FACH, CELL Forward Access Channel). The invention adopts the proposal that a UE is fed back to a RNC through a RACH and transmitted to a signal to noise ratio Ec/No downlink CPICH of a base station NodeB through RNC, when CCCH data is bore on an HS-PDSCH, the required dimension of the HS-PDSCH transmission block, the modulation type, the quantity of code channels and the transmitted power of the HS-PDSCH are confirmed, and thereby the downlink transmission of the CCCH data bore on the HS-PDSCH is realized under the state of an enhanced CELL_FACH.
Description
Technical field
The present invention relates to high speed downlink packet and insert (HSDPA, High Speed Downlink PacketAccess) technology, especially cell forward access channel (the CELL FACH that refers to a kind of enhancing, CELL ForwardAccess Channel) under the state, the method for high-speed physical downlink shared channel (HS-PDSCH) bearing public control channel data and device.
Background technology
The HSDPA technology is Wideband Code Division Multiple Access (WCDMA) (WCDMA) normal structure third generation partner program (3GPP, 3
RdGeneration Partnership Project) the descending enhancement techniques of introducing in the R5 agreement.The HSDPA technology is by using Adaptive Modulation and Coding (AMC), mixing automatic repeat requests (HARQ, Hybrid Automatic Retransmission Request), key technology such as fast dispatch, and, make descending peak rate can reach 10.8Mbps to 42Mbps by introducing the transmission rate that three kinds of new physical channels improve downlink data.Wherein, three kinds of new physical channels are respectively high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH, High Speed Physical Downlink Shared Channel), High-Speed Shared Control Channel (HS-SCCH, High Speed Shared Control Channel) and uplink high-speed special physical control channel (HS-DPCCH, High Speed Dedicated Physical Control Channel).
Wherein, the core of AMC technology is: base station node B selects best down link modulation and coded system according to current channel quality, to determine to send the speed of data.The adjustment of data rate waits and realizes by change modulation system, HS-PDSCH code channel quantity.(UE when UserEquipment) being in the good wireless environment, selecting the channel coding method of high order modulation and high code check to transmit user data, thereby obtains higher transmission rate when user terminal; When UE is in sub-district far point, deep fade or shadow region, selects low-order-modulated mode and low code check, thereby guarantee communication quality.
Use the WCDMA system of HSDPA technology to be also referred to as the HSDPA system, in the HSDPA system, two basic manipulation modes of UE are idle pulley and connection mode, wherein, connection mode comprises four kinds of different states: cell private channel (CELL_DCH, CELL Dedicated Channel) state, be called for short the CELL_DCH state, the CELL_FACH state, cell paging forward access channel (CELL_PCH, CELL Paging Access) state, be called for short the CELL_PCH state, and access net registration area paging channel (URA_PCH, URA Paging Access) state is called for short the URA_PCH state.
In 3GPP R5, R6 agreement, under the CELL_FACH state, Common Control Channel (CCCH, Common Control Channel) down direction is mapped to forward access channel (FACH, ForwardAccess Channel), FACH is mapped to auxiliary publish control physical channel (S-CCPCH, SecondaryCommon Control Physical Channel) again and carries out wireless transmission, thereby sends the CCCH data to UE.
For increase peak rate under the CELL_FACH state, reduce under the CELL_FACH state data transmission delay, reduce change-over time of different conditions, 3GPP R7 release protocol standard is strengthened the CELL_FACH state, promptly under the CELL_FACH state, also can use the new technology of HSDPA characteristic, abbreviate the CELL_FACH state of enhancing as.That is to say, only under the CELL_DCH state, use, extend under CELL_FACH and CELL_DCH state and use, still under different conditions, use the characteristics difference of HSDPA characteristic from original HSDPA characteristic.Strengthening under the CELL_FACH state, logic channel CCCH is mapped to transmission channel HS-DSCH and transmits (in the R6 standard agreement, HSDPA only supports the CELL_DCH state, and DCCH and DTCH are mapped to HS-DSCH), HS-DSCH is mapped to the transmission that physical channel HS-PDSCH carries out physical layer.
The downlink channel quality information that regulation base station node B can obtain in the agreement of R7 is: UE is by Random Access Channel (RACH, Random Access Channel) feeds back to radio network controller (RNC), be forwarded to the signal to noise ratio E of the down public guide frequency channel (CPICH, CommonPilot Channel) of base station node B again by RNC
c/ N
o
In the R6 standard agreement, under the CELL_DCH state, UE is by HS-DPCCH channel feedback channel quality information (CQI, Channel Quality Information), base station node B selects transmission block size, modulation system and HS-PDSCH code channel quantity according to the CQI mapping form of the variety classes UE in CQI and the consensus standard.
And strengthening under the CELL_FACH state, because UE does not have up HS-DPCCH channel feedback, so, when the CCCH channel data is carried on the last transmission of HS-PDSCH, can't select HS-PDSCH transmission block size, modulation system and HS-PDSCH code channel quantity, can not determine HS-PDSCH power, that is to say, strengthening under the CELL_FACH state, can not realize the method for HS-PDSCH carrying CCCH data, thereby can not guarantee the downlink transfer of CCCH data.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method that realizes the high-speed physical downlink shared channel (HS-PDSCH) bearing public control channel data, can guarantee the downlink transfer of CCCH data.
Another object of the present invention is to provide a kind of device of realizing the high-speed physical downlink shared channel (HS-PDSCH) bearing public control channel data, can guarantee the downlink transfer of CCCH data.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of bearing public control channel CCCH data, this method may further comprise the steps:
A. detect the signal to noise ratio E of the Common Pilot Channel CPICH of user terminal to send up
c/ N
o_ cpich is according to the CPICH power P
CPICH, detected signal to noise ratio E
c/ N
o_ cpich, the available signal-to-noise ratio E when determining high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH carrying CCCH data
c/ E
o_ avail is P
MaxAnd P
CPICHDifference and E
c/ N
o_ cpich and; Wherein, P
MaxThe operable maximum power of HS-PDSCH when carrying the CCCH data for the HS-PDSCH that sets in advance according to system design;
B. according to CCCH data volume and the available signal-to-noise ratio that obtains, the signal to noise ratio of transmission block size, code channel quantity, modulation system and the HS-PDSCH that uses when determining HS-PDSCH carrying CCCH data;
C. according to the CPICH power P
CPICH, detected CPICH signal to noise ratio E
c/ N
oThe signal to noise ratio E of the HS-PDSCH of _ cpich and acquisition
c/ N
o, the transmitting power P that determines HS-PDSCH is E
c/ N
oAnd E
c/ N
oThe difference of _ cpich and P
CPICHAnd;
D. utilize the transmitting power of transmission block size, code channel quantity, modulation system and the HS-PDSCH of the HS-PDSCH that obtains, on HS-PDSCH, send the CCCH data.
Described step B specifically comprises:
The E of the code channel quantity of transmission block size when B1. setting in advance HS-PDSCH carrying CCCH data and the HS-PDSCH that can use, modulation system, HS-PDSCH
c/ N
oBetween corresponding relation;
B2. carry out optimum Match with scheduled user's described CCCH data volume with the transmission block size in the corresponding relation that sets in advance, the signal to noise ratio E of transmission block size, code channel quantity, modulation system and the HS-PDSCH that uses when obtaining HS-PDSCH carrying CCCH data
c/ N
o
The operable maximum code channel quantity C of HS-PDSCH when wherein, being not more than the HS-PDSCH carrying CCCH data that set in advance with the big or small corresponding code channel quantity of the transmission block that obtains
MaxThe operable modulation system M of HS-PDSCH when the modulation system corresponding with the transmission block size that obtains is not more than the HS-PDSCH carrying CCCH data that set in advance
MaxThe E of the HS-PDSCH corresponding with the transmission block size that obtains
c/ N
oBe not more than described available signal-to-noise ratio E
c/ N
o_ avail.
A kind of device of bearing public control channel CCCH data, this device comprises: CPICH signal to noise ratio detecting unit, available signal-to-noise ratio acquiring unit, transmission parameter determining unit, CPICH transmitting power acquiring unit and CCCH data transmission unit, wherein,
CPICH signal to noise ratio detecting unit is used for when HS-PDSCH carrying CCCH data, and base stations detected NodeB obtains the signal to noise ratio E of the CPICH that UE reports via RNC
c/ N
o_ cpich, and send to available signal-to-noise ratio acquiring unit and CPICH transmitting power acquiring unit;
The available signal-to-noise ratio acquiring unit is used for the power P according to CPICH
CPICH, detected signal to noise ratio E
c/ N
o_ cpich, the available signal-to-noise ratio E when determining HS-PDSCH carrying CCCH data
c/ N
o_ avail is P
MaxAnd P
CPICHDifference and E
c/ N
o_ cpich's and, and with the available signal-to-noise ratio E that obtains
c/ N
o_ avail sends to and sends the parameter determining unit; P wherein
MaxThe operable maximum power of HS-PDSCH when carrying the CCCH data for the HS-PDSCH that sets in advance according to system design;
Send the parameter determining unit, be used for according to the CCCH data volume that receives, and the available signal-to-noise ratio E that obtains
c/ N
o_ avail, the signal to noise ratio E of transmission block size, code channel quantity, modulation system and the HS-PDSCH that uses when determining HS-PDSCH carrying CCCH data
c/ N
o, and transmission block size, code channel quantity and the modulation system of determining sent to the CCCH data transmission unit, with the signal to noise ratio E of HS-PDSCH
c/ N
oSend to CPICH transmitting power acquiring unit;
CPICH transmitting power acquiring unit is used for the power P according to CPICH
CPICH, detected CPICH signal to noise ratio E
c/ N
oThe signal to noise ratio E of the HS-PDSCH of _ cpich and acquisition
c/ N
o, the transmitting power P that determines HS-PDSCH is E
c/ N
oAnd E
c/ N
oThe difference of _ cpich and P
CPICHAnd, and the transmitting power P of HS-PDSCH sent to the CCCH data transmission unit;
The CCCH data transmission unit is used to utilize the transmitting power of transmission block size, code channel quantity, modulation system and HS-PDSCH of the HS-PDSCH of acquisition, sends the CCCH data on HS-PDSCH.
The present invention utilizes UE to feed back to RNC by RACH, is forwarded to the signal to noise ratio E of the descending CPICH of base station node B again by RNC
c/ N
oWhen having determined that the CCCH Data-carrying is on HS-PDSCH, the transmitting power of HS-PDSCH transmission block size, modulation system and code channel quantity and the HS-PDSCH that needs has realized strengthening under the CELL_FACH state downlink transfer of CCCH Data-carrying on HS-PDSCH.
Description of drawings
Fig. 1 carries the flow chart of the method for CCCH data for the present invention;
Fig. 2 carries the structural representation of the device of CCCH data for the present invention.
Embodiment
Fig. 1 carries the flow chart of the method for CCCH data for the present invention, as shown in Figure 1, comprises the steps:
Step 100: the signal to noise ratio that detects the CPICH of user terminal to send up.
Stipulate in the agreement of R7: base station node B can obtain UE and feed back to RNC by RACH, is forwarded to the signal to noise ratio E of the descending CPICH of base station node B again by RNC
c/ N
o
In this step, when HS-PDSCH carrying CCCH data, base station node B can detect the E of the CPICH that self obtains
c/ N
o, with the E of detected CPICH
c/ N
oBe designated as the signal to noise ratio E of the CPICH that UE reports
c/ N
o_ cpich.
Step 101: according to CPICH power, detected signal to noise ratio, the available signal-to-noise ratio when determining HS-PDSCH carrying CCCH data.
The CPICH power P
CPICHBe the known pilot channel power of base station node B, no longer describe in detail here.
Available signal-to-noise ratio E during HS-PDSCH carrying CCCH data
c/ N
o_ avail is:
E
c/N
o_avail＝P
max-P
CPICH+E
c/N
o_cpich，
Wherein, P
MaxThe operable maximum power P of HS-PDSCH when carrying the CCCH data for the HS-PDSCH that sets in advance according to system design
Max
Need to prove that for convenience, when emission side was used the maximum power that HS-PDSCH can use, the signal to noise ratio of the HS-PDSCH channel that reception can reach was called available signal-to-noise ratio herein.
Step 102: according to CCCH data volume and the available signal-to-noise ratio that obtains, the signal to noise ratio of transmission block size, code channel quantity, modulation system and the HS-PDSCH that uses when determining HS-PDSCH carrying CCCH data.
Here, the described code channel of code channel quantity is meant the channel code that the HS-PDSCH channel uses.
The specific implementation of this step can be, at first, and the E of the transmission block size when setting in advance HS-PDSCH carrying CCCH data and the code channel quantity of the HS-PDSCH that can use, modulation system, HS-PDSCH
c/ N
oBetween corresponding relation, as shown in Table 1:
| The transmission block size | Code channel quantity | Modulation system | E c/N o |
| 137? | 1? | QPSK? | -15.5? |
| 233? | 1? | QPSK? | -10.5? |
| 650? | 2? | QPSK? | -9.5? |
| ...? | ...? | ...? | ...? |
Table one
Delegation is called one in the table one.Table one can obtain by link simulation, is partial data in the table one, can also comprise more data.Further, the data in can also his-and-hers watches one are optimized, such as: the E that adjusts HS-PDSCH
c/ N
oMake its more realistic HSDPA system requirements.
Then, CCCH data volume with the scheduled user is carried out optimum Match with the transmission block size in the corresponding relation that sets in advance, promptly from corresponding relation, search transmission block size and immediate of current C CCH data volume, and, in the item that finds out, must satisfy: the operable maximum code channel quantity C of HS-PDSCH when (1) code channel quantity corresponding with this transmission block size is not more than the HS-PDSCH carrying CCCH data that set in advance
MaxThe operable modulation system M of HS-PDSCH when (2) being not more than the HS-PDSCH carrying CCCH data that set in advance with the big or small corresponding modulation system of this transmission block
Max(3) E of the HS-PDSCH corresponding with this transmission block size
c/ N
oAvailable signal-to-noise ratio E when being not more than HS-PDSCH carrying CCCH data
c/ N
o_ avail.Scheduled user's CCCH data volume is that base station node B is known.
The operable maximum code channel quantity C of HS-PDSCH when wherein, HS-PDSCH carries the CCCH data
Max, modulation system M
MaxFor what set in advance according to system design.
Step 103:, determine the transmitting power of HS-PDSCH according to the signal to noise ratio of the HS-PDSCH of the signal to noise ratio of CPICH power, detected CPICH and acquisition.
Transmitting power P during HS-PDSCH carrying CCCH data is:
P＝E
c/N
o-E
c/N
o_cpich+P
CPICH。
Step 104: utilize the transmitting power of transmission block size, code channel quantity, modulation system and the HS-PDSCH of the HS-PDSCH that obtains, on HS-PDSCH, send the CCCH data.
As can be seen from Figure 1, the present invention utilizes UE to feed back to RNC by RACH, is forwarded to the signal to noise ratio E of the descending CPICH of base station node B again by RNC
c/ N
oWhen having determined that the CCCH Data-carrying is on HS-PDSCH, the transmitting power of HS-PDSCH transmission block size, modulation system and code channel quantity and the HS-PDSCH that needs has realized strengthening under the CELL FACH state downlink transfer of CCCH Data-carrying on HS-PDSCH.
Fig. 2 carries the structural representation of the device of CCCH data for the present invention, as shown in Figure 2, this device comprises: CPICH signal to noise ratio detecting unit, available signal-to-noise ratio acquiring unit, transmission parameter determining unit, CPICH transmitting power acquiring unit and CCCH data transmission unit, wherein
CPICH signal to noise ratio detecting unit is used for when HS-PDSCH carrying CCCH data, and base stations detected NodeB obtains the signal to noise ratio E of the CPICH that UE reports via RNC
c/ N
o_ cpich, and send to available signal-to-noise ratio acquiring unit and CPICH transmitting power acquiring unit;
The available signal-to-noise ratio acquiring unit is used for according to CPICH power, detected signal to noise ratio E
c/ N
o_ cpich, the available signal-to-noise ratio E when determining HS-PDSCH carrying CCCH data
c/ N
o_ avail, and with the available signal-to-noise ratio E that obtains
c/ N
o_ avail sends to and sends the parameter determining unit;
Send the parameter determining unit, be used for according to the CCCH data volume that receives, and the available signal-to-noise ratio E that obtains
c/ N
o_ avail, the signal to noise ratio E of transmission block size, code channel quantity, modulation system and the HS-PDSCH that uses when determining HS-PDSCH carrying CCCH data
c/ N
o, and transmission block size, code channel quantity and the modulation system of determining sent to the CCCH data transmission unit, with the signal to noise ratio E of HS-PDSCH
c/ N
oSend to CPICH transmitting power acquiring unit;
CPICH transmitting power acquiring unit, be used for signal to noise ratio according to the HS-PDSCH of the signal to noise ratio of CPICH power, detected CPICH and acquisition, determine the transmitting power P of HS-PDSCH, and the transmitting power P of HS-PDSCH is sent to the CCCH data transmission unit;
The CCCH data transmission unit is used to utilize the transmitting power of transmission block size, code channel quantity, modulation system and HS-PDSCH of the HS-PDSCH of acquisition, sends the CCCH data on HS-PDSCH.
The device that the CCCH data are carried in the present invention can be arranged in the scheduler of base station node B, as a part of the scheduler of base station node B.
Do detailed description below in conjunction with an embodiment.
Suppose that apparatus of the present invention are arranged in the base station node B scheduler.
When supposing to obtain HS-PDSCH carrying CCCH data by link simulation, the transmission block size of HS-PDSCH and the E of the HS-PDSCH code channel quantity of using, modulation system, HS-PDSCH
c/ N
oBetween relation as mentioned in shown in the table one.
Suppose that the user UE1 under the CELL_FACH state that strengthens reports the E of pilot tone by the RACH channel
c/ N
oTo RNC, RNC is transmitted to base station node B to this value again.At a time, when base station node B determines that according to dispatching algorithm the CCCH Data-carrying of dispatched users UE1 sends on HS-PDSCH,
At first, base station node B scheduler detects UE1 and arrives RNC by the RACH channel feedback, and RNC is forwarded to the E of the CPICH of Node B
c/ N
oBe E
c/ N
o_ cpich;
Secondly, utilize pilot channel power P
CPICH, detected E
c/ N
o_ cpich and the operable maximum power P of the HS-PDSCH that sets in advance
Max, according to E
c/ N
o_ avail=P
Max-P
CPICH+ E
c/ N
o_ cpich, when calculating the CCCH data of HS-PDSCH carrying UE1, the operable E of HS-PDSCH
c/ N
oBe E
c/ N
o_ avail;
Then, according to the CCCH data volume of user UE1 among the base station node B and the E that calculates
c/ N
o_ avail, the operable maximum code channel quantity C of HS-PDSCH when utilizing the HS-PDSCH carrying CCCH data that set in advance
MaxWith modulation system M
Max, look-up table one, when obtaining the CCCH data of HS-PDSCH carrying UE1, the E of HS-PDSCH code channel quantity, modulation system and the HS-PDSCH of the transmission block size of transmission, use
c/ N
o
Then, base station node B scheduler is according to P=E
c/ N
o-E
c/ N
o_ cpich+P
CPICH, the transmitting power P during the CCCH data of distributing HS-PDSCH carrying UE1 for HS-PDSCH;
At last, base station node B sends the CCCH data of UE1 according to the transmitting power of transmission block size, code channel quantity, modulation system and the HS-PDSCH of the HS-PDSCH that obtains on HS-PDSCH.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (3)
1. the method for bearing public control channel CCCH data is characterized in that, this method may further comprise the steps:
A. detect the signal to noise ratio E of the Common Pilot Channel CPICH of user terminal to send up
c/ N
o_ cpich is according to the CPICH power P
CPICH, detected signal to noise ratio E
c/ N
o_ cpich, the available signal-to-noise ratio E when determining high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH carrying CCCH data
c/ N
o_ avail is P
MaxAnd P
CPICHDifference and E
c/ N
o_ cpich and; Wherein, P
MaxThe operable maximum power of HS-PDSCH when carrying the CCCH data for the HS-PDSCH that sets in advance according to system design;
B. according to CCCH data volume and the available signal-to-noise ratio that obtains, the signal to noise ratio of transmission block size, code channel quantity, modulation system and the HS-PDSCH that uses when determining HS-PDSCH carrying CCCH data;
C. according to the CPICH power P
CPICH, detected CPICH signal to noise ratio E
c/ N
oThe signal to noise ratio E of the HS-PDSCH of _ cpich and acquisition
c/ N
o, the transmitting power P that determines HS-PDSCH is E
c/ N
oAnd E
c/ N
oThe difference of _ cpich and P
CPICHAnd;
D. utilize the transmitting power of transmission block size, code channel quantity, modulation system and the HS-PDSCH of the HS-PDSCH that obtains, on HS-PDSCH, send the CCCH data.
2. method according to claim 1 is characterized in that, described step B specifically comprises:
The E of the code channel quantity of transmission block size when B1. setting in advance HS-PDSCH carrying CCCH data and the HS-PDSCH that can use, modulation system, HS-PDSCH
c/ N
oBetween corresponding relation;
B2. carry out optimum Match with scheduled user's described CCCH data volume with the transmission block size in the corresponding relation that sets in advance, the signal to noise ratio E of transmission block size, code channel quantity, modulation system and the HS-PDSCH that uses when obtaining HS-PDSCH carrying CCCH data
c/ N
o
The operable maximum code channel quantity C of HS-PDSCH when wherein, being not more than the HS-PDSCH carrying CCCH data that set in advance with the big or small corresponding code channel quantity of the transmission block that obtains
MaxThe operable modulation system M of HS-PDSCH when the modulation system corresponding with the transmission block size that obtains is not more than the HS-PDSCH carrying CCCH data that set in advance
MaxThe E of the HS-PDSCH corresponding with the transmission block size that obtains
c/ N
oBe not more than described available signal-to-noise ratio E
c/ N
o_ avail.
3. the device of bearing public control channel CCCH data, it is characterized in that, this device comprises: CPICH signal to noise ratio detecting unit, available signal-to-noise ratio acquiring unit, transmission parameter determining unit, CPICH transmitting power acquiring unit and CCCH data transmission unit, wherein
CPICH signal to noise ratio detecting unit is used for when HS-PDSCH carrying CCCH data, and base stations detected NodeB obtains the signal to noise ratio E of the CPICH that UE reports via RNC
c/ N
o_ cpich, and send to available signal-to-noise ratio acquiring unit and CPICH transmitting power acquiring unit;
The available signal-to-noise ratio acquiring unit is used for the power P according to CPICH
CPICH, detected signal to noise ratio E
c/ N
o_ cpich, the available signal-to-noise ratio E when determining HS-PDSCH carrying CCCH data
c/ N
o_ avail is P
MaxAnd P
CPICHDifference and E
c/ N
o_ cpich's and, and with the available signal-to-noise ratio E that obtains
c/ N
o_ avail sends to and sends the parameter determining unit; P wherein
MaxThe operable maximum power of HS-PDSCH when carrying the CCCH data for the HS-PDSCH that sets in advance according to system design;
Send the parameter determining unit, be used for according to the CCCH data volume that receives, and the available signal-to-noise ratio E that obtains
c/ N
o_ avail, the signal to noise ratio E of transmission block size, code channel quantity, modulation system and the HS-PDSCH that uses when determining HS-PDSCH carrying CCCH data
c/ N
o, and transmission block size, code channel quantity and the modulation system of determining sent to the CCCH data transmission unit, with the signal to noise ratio E of HS-PDSCH
c/ N
oSend to CPICH transmitting power acquiring unit;
CPICH transmitting power acquiring unit is used for the power P according to CPICH
CPICH, detected CPICH signal to noise ratio E
c/ N
oThe signal to noise ratio E of the HS-PDSCH of _ cpich and acquisition
c/ N
o, the transmitting power P that determines HS-PDSCH is E
c/ N
oAnd E
c/ N
oThe difference of _ cpich and P
CPICHAnd, and the transmitting power P of HS-PDSCH sent to the CCCH data transmission unit;
The CCCH data transmission unit is used to utilize the transmitting power of transmission block size, code channel quantity, modulation system and HS-PDSCH of the HS-PDSCH of acquisition, sends the CCCH data on HS-PDSCH.
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| CN102130708B (en) * | 2010-01-15 | 2014-04-30 | 华为技术有限公司 | Method for feeding back multicell channel state information and user equipment |
| CN101958781A (en) * | 2010-10-25 | 2011-01-26 | 华为技术有限公司 | Data retransmission adjustment method, device and base station |
| CN103379601A (en) * | 2012-04-18 | 2013-10-30 | 中兴通讯股份有限公司 | Method and apparatus for balancing code channel and power, and base station |
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| CN101193438A (en) * | 2006-11-30 | 2008-06-04 | 华为技术有限公司 | A method for realizing high-speed downlink packet access |
| EP1928095A2 (en) * | 2006-11-30 | 2008-06-04 | Broadcom Corporation | Method and apparatus for adaptive noise and/or signal filtering in an HSDPA channel quality indicator (CQI) selection |
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