CN100372429C - Method for distributing downward physics channel power in HSDPA system - Google Patents
Method for distributing downward physics channel power in HSDPA system Download PDFInfo
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- CN100372429C CN100372429C CNB2004100624158A CN200410062415A CN100372429C CN 100372429 C CN100372429 C CN 100372429C CN B2004100624158 A CNB2004100624158 A CN B2004100624158A CN 200410062415 A CN200410062415 A CN 200410062415A CN 100372429 C CN100372429 C CN 100372429C
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Abstract
The present invention discloses a method for distributing downlink physical channel power in an HSDPA system, which comprises the following steps that (A) a Node B side is provided with maximum transmitting power and dynamic regulation surplus; (B) the HS-PDSCH power transmitted in last time can be obtained; (C) the Node B side can select users which can transmit data to the Node B side and allocate the total power of two channels of HS-SCCH and HS-PDSCH according to provided largest transmitting power and the total power on the channels of HS-SCCH and HS-PDSCH desired by users; (D) the Node B side can judge whether surplus power exists; is the result is positive, the step E can be executed, and or else, the process of the power distribution of a downlink physical channel of the HSDPA can be ended; (E) the Node B can increase the transmitting data quantity on the HS-PDSCH channel of a selected user according to a power surplus value.
Description
Technical field
The present invention relates to the power distributing technique in the broadband CDMA system, relate in particular to the method that a kind of high rate downlink data bag inserts down physical channel power division in (HSDPA) system.
Background technology
In the technical standard of 3G (Third Generation) Moblie, become three big mainstream technologys with the leading Wideband Code Division Multiple Access (WCDMA) (WCDMA) in Europe, leading code division multiple access (CDMA) and the Chinese TD SDMA (TD-SCDMA) of the U.S..
Present WCDMA standard can provide the message transmission rate of the highest 2Mbit/s, supports packet switching and circuit switching at a high speed, and many business based on the internet can be provided.Yet,, need system that higher transmission rate and delay still less are provided for such as asymmetric business of up-downgoing data such as download or Streaming Media classes.In order to satisfy this requirement, WCDMA has done improvement to air interface, has introduced the HSDPA technology, makes it to support the peak rate up to 10Mbit/s.
The HSDPA technology is a kind of important technology that the WCDMA networking later stage improves downlink capacity and data service rate, is enhancing and the evolution of WCDMA at wireless portion.HSDPA has increased the MAC-hs entity newly at medium access control (MAC) layer of base station node B side, and this entity mainly is responsible for handling rapid mixing and is retransmitted (HARQ) operation and fast dispatch algorithm automatically; In addition, HSDPA has also increased by three new channels on original physical channel, is responsible for transmitting user data, required control information and transmission response and the feedback information etc. of transmission decoding respectively.Introduce the WCDMA wireless portion after the HSDPA technology, its basic structure still is consistent with R99, therefore, supports the terminal of HSDPA technology to coexist in a carrier wave with the R99 terminal, and need not to operate in independently on the carrier wave.
In the HSDPA technology, the HSDPA down physical channel comprises high-speed down link Physical Shared Channel (HS-PDSCH) and High-Speed Shared Control Channel (HS-SCCH), the data of HS-PDSCH channel bearing HSDPA descending transmission channel wherein, the demodulating information of HS-SCCH channel bearing demodulation HS-PDSCH channel up-downgoing data.
The spreading factor of HS-PDSCH is 16, frame length 2ms, and every frame comprises 3 time slots.For with the WCDMA system in the frame of special-purpose channel 10ms distinguish mutually, generally the frame with 2ms is called subframe.Figure 1 shows that subframe and the structure of time slot of HS-PDSCH.The descending modulation system that M value among the figure and HS-PDSCH channel adopt is relevant: if descending modulation system is four to advance phase-shift keying (QPSK), and M=2 then, thus each time slot institute can a data carried by data amount be 320 bits (bit); If descending modulation system is 16 quadrature amplitude modulation (QAM), M=4 then, thus each time slot institute can a data carried by data amount be 640bits.This shows that the message transmission rate when adopting the 16QAM modulation is 2 times of employing QPSK modulation system.
The spreading factor of HS-SCCH is 128, and frame length is 2ms, and every frame comprises 3 time slots.Figure 2 shows that subframe and the structure of time slot of HS-SCCH.Wherein the signaling of time slot #0 carrying is HS-PDSCH channel code numbering original position parameter O that uses and the sign indicating number of the continuous channel thereafter number parameter P that comprises channel code numbering original position; Data block size index information, use process identity information, incremental redundancy and constellation mapping information and new data indication information etc. that time slot #1 and time slot # 2 carrying HS-PDSCH use.The HS-SCCH channel only adopts the QPSK mode to modulate.
The descending gross power that HSDPA sends equals the gross power of HS-SCCH channel and the gross power sum of HS-PDSCH channel.Because modulation system and institute's data carried by data amount of HS-SCCH channel are fixed, therefore for meet consumers' demand, loaded information on the demodulation HS-PDSCH channel correctly, must increase or reduce transmitted power on the HS-SCCH channel in real time according to the quality on user's air interlace channel, this is unique feasible method; The modulation system of HS-PDSCH channel and institute's data carried by data amount can dynamically be adjusted, therefore when user's air interlace channel quality is certain, take on the HS-PDSCH channel power minimizing, can be by reducing measures such as sending data or change modulation system, guarantee the required signal to noise ratio of user's demodulating data (Eb/N0), reach the purpose of correct reception data.
Because in advance in 2 time slots of HS-PDSCH channel, i.e. 5120 chips (chip), and each subframe is 7680chips to the HS-SCCH channel on descending delivery time, therefore there is the situation of interlocking in the subframe on two channels.During the power on coordinated allocation HS-SCCH channel and HS-PDSCH channel, should guarantee that the downlink gross power is no more than the maximum that sets so, can make full use of the power of two channels simultaneously again.
The method of existing HSDPA down physical channel power division is: by fixed proportion maximum transmit power is divided into two parts, distributes to HS-SCCH channel and HS-PDSCH channel respectively.Figure 3 shows that the flow chart of existing HSDPA down physical channel power distribution method, this method may further comprise the steps:
Step 301:Node B is provided with the power division ratio of HS-SCCH and HS-PDSCH, and will store the HS-SCCH gross power of these all users' needs and the register zero clearing of HS-PDSCH gross power.
In the beginning of each HSDPA down physical channel power division, the power that Node B side all will be provided with HS-SCCH channel and HS-PDSCH channel shared ratio in maximum transmit power.Because the spreading factor of HS-SCCH channel is 128, be 8 times of HS-PDSCH channel, therefore show that desired power is less on the HS-SCCH channel, when power division, the ratio that the HS-SCCH channel accounts for maximum transmit power is usually less than the ratio of HS-PDSCH channel.Suppose that the ratio that the HS-SCCH channel accounts for maximum transmit power is P
sThe ratio that %, HS-PDSCH channel account for maximum transmit power is P
p%, then P
s%+P
p%=1.
After Node B side sets up the power proportions of two channels, HS-SCCH gross power and the zero clearing of HS-PDSCH gross power register that this user needs will be stored.The purpose of zero clearing is: in the follow-up flow process, Node B side will begin to weigh each user required power and adding up on two channels one by one according to the data volume that will send from first user, thereby select to satisfy the user who sends requirement, therefore for the gross power on back two channels that accurately obtain to Add User, so initial in this power division just with the register zero clearing of two channel gross powers.
Step 302～303:MAC-hs entity calculates the required HS-SCCH power of active user by the user profile of obtaining from Node B side, whether the HS-SCCH gross power behind the judgement increase active user is less than the HS-SCCH gross power of distributing then, if then execution in step 304; Otherwise, execution in step 307.
Node B side with all users' that communicating with information stores in a tabulation, the MAC-hs entity at first obtains active user's information from Node B side, and calculate the needed HS-SCCH power of active user, again the numerical value in the register of its numerical value and the required HS-SCCH gross power of storage user is added up; Then, judge after having increased the active user that whether the HS-SCCH gross power that needs is less than the HS-SCCH gross power of distributing in the step 301, promptly whether less than (P
s% * maximum transmit power).If increased the HS-SCCH gross power behind the active user less than (P
s% * maximum transmit power), shows and to satisfy the requirement of active user on the HS-SCCH channel, then carry out subsequent step; Otherwise the HS-SCCH gross power that Node B side is distributed can not satisfy active user's demand, does not then select the active user.
Step 304:MAC-hs entity is by the definite data volume that sends to the active user of Node B side, and the HS-PDSCH gross power behind the acquisition increase active user.
This step MAC-hs entity is at first determined the data volume that the active user sends by Node B side, and calculates under the situation of the data volume that the transmission aforementioned calculation is come out HS-PDSCH channel desired power; Numerical value in the register of then that the active user is required HS-PDSCH power and storage user required HS-PDSCH gross power adds up, thereby obtains increasing the HS-PDSCH gross power behind the active user.
Whether the HS-PDSCH gross power behind step 305～306:Node B side judgement increase active user is less than the HS-PDSCH gross power of distributing, if, then select the active user, upgrade HS-SCCH gross power and HS-PDSCH gross power, and write down the user profile of having selected; Otherwise, execution in step 307;
HS-PDSCH gross power after increasing the active user is less than (P
p% * maximum transmit power) time, show that the HS-PDSCH power that provides is enough to satisfy active user's demand, therefore selecting provides the service that sends data to the active user; Then, Node B side has been selected user's demand according to all, upgrades the gross power that offers HS-SCCH channel and HS-PDSCH channel; At last, note to its user profile that sends data selected.
Step 307: judge that the user selects whether to finish, if then finish the flow process of this down physical channel power division; Otherwise, execution in step 308.
The standard whether user of this step selects to finish is: judge with user that Node B side is communicated by letter in, whether also have the user who is weighed power demand, if show that then the user selects not finish; Otherwise, show that the user selects to finish.
Step 308: turn to the next user in the user list, and return execution in step 302.
After the power demand according to the active user of being through with carries out the flow process of power division, Node B lateral root is according to the information in the user list, the user that object turns to the next one to communicate with will be weighed, and return execution in step 302, beginning is at the flow process of another user's distribution HS-SCCH channel and HS-PDSCH channel power.
The shortcoming of existing HSDPA down physical channel power distribution method is:
Node B side is distributed HS-SCCH channel and HS-PDSCH channel according to fixing ratio with the maximum transmit power that can provide, because the HS-SCCH channel can not be by reducing the data that send and changing the variation that modulation system is come the adaptive channel quality as the HS-PDSCH channel, therefore after each the distribution, the power of HS-SCCH can not be adjusted as the case may be accordingly.Particularly, when channel quality degrades, the power of HS-SCCH channel can not satisfy the demand of user's demodulating data, and data that can't correctly demodulation sent cause to the user and transmit data failure; When channel quality was better, the unnecessary part of HS-SCCH power can't be distributed to the HS-PDSCH channel, to increase the data volume that the HS-PDSCH channel sends, caused the waste of power.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of method of HSDPA down physical channel power division, should guarantee that the downlink gross power is no more than the maximum that sets, can make full use of the power of two channels simultaneously again.
For achieving the above object, the invention provides a kind of method of HSDPA down physical channel power division, this method may further comprise the steps:
A.Node B side is provided with maximum transmission power and dynamically adjusts surplus, the part of described dynamic adjustment surplus for reserving from described maximum transmission power;
B. the HS-PDSCH power that once sends before obtaining;
HS-SCCH that maximum transmit power that C.Node B lateral root certificate can provide and user are required and the gross power on the HS-PDSCH channel, selection can send the user of data and distribute HS-SCCH and the gross power of HS-PDSCH two channels to it;
D.Node B side judges whether also to exist dump power, if, execution in step E then, otherwise, the flow process of HSDPA down physical channel power division finished;
E.Node B lateral root has been selected the transmission data volume of user on the HS-PDSCH channel according to the increase of power surplus value.
Described step C may further comprise the steps:
C1. obtain user profile and calculate the required HS-SCCH power of active user from the NodeB side;
C2. calculate to increase HS-SCCH gross power and the preceding HS-PDSCH gross power sum that once sends behind the active user, as the gross power behind the increase active user;
C3. whether judge to increase gross power behind the active user less than maximum transmit power, if, then calculate the HS-PDSCH power that the user can use, otherwise, execution in step C6;
C4. judge that whether HS-PDSCH power that the user calculate can use dispose ideal power to the user greater than high level, if, then determine the data volume that sends to the active user, and calculate the HS-PDSCH power of active user's reality according to this data volume, otherwise execution in step C6;
C5.Node B side is selected the active user, upgrades HS-SCCH gross power and HS-PDSCH gross power, and user's information selected in record;
C6. judge that the user selects whether to finish, if, then finish the flow process of this down physical channel power division, otherwise, turn to next user and return execution in step C1.
Described step e may further comprise the steps:
E1. judge whether the user selected can increase the data volume to its transmission, if, execution in step E2 then, otherwise, finish to increase the flow process that sends data volume on the HS-PDSCH channel;
The E2.MAC-hs entity increases active user's transmission data volume by Node B side, and calculates the actual HS-PDSCH power after the active user increases data volume;
E3.Node B side is calculated and renewal HS-PDSCH gross power;
E4.Node B side judges whether to finish increase, and all have selected the user's data amount, if, then finish to increase the flow process that sends data volume on the HS-PDSCH channel, otherwise, turn to next user, and return execution in step E2.
The described MAC-hs entity of step C3 calculates the HS-PDSCH power that the user can use: 100% difference that deducts dynamic adjustment surplus multiply by and deducts the gross power that increases behind the active user behind the maximum transmit power again.
Step e 3 described calculating and renewal HS-PDSCH gross power are: the actual HS-PDSCH power that Node B side at first increases active user in the step e 2 after the data volume adds up in increasing on the data volume HS-PDSCH gross power before, and the gross power that will distribute to the HS-PDSCH channel then is updated to accumulation result.
Use the present invention, Node B lateral root carries out the power that the user selects and distributes HS-SCCH channel and HS-PDSCH channel in real time according to the supply and demand situation of power.Particularly, the present invention has following beneficial effect:
1.Node the B side is weighed the power of needed HS-SCCH channel of the user who communicates with and HS-PDSCH channel one by one, and with its add up the back compare with maximum transmit power, selection can provide the user who sends data, services to it, guarantees that the maximum transmit power that can provide is provided two channel gross power sums;
2. when channel quality was relatively poor, Node B lateral root improved the correctness of demodulating data according to dynamically adjusting the gross power that surplus increases the HS-SCCH channel;
3. exist under the remaining situation of power, Node B lateral root has sent the transmission data volume of data user on the HS-PDSCH channel according to remaining power increase, to reach the purpose that makes full use of power resource.
Description of drawings
Fig. 1 is HS-PDSCH channel subframe and structure of time slot schematic diagram.
Fig. 2 is HS-SCCH channel subframe and structure of time slot schematic diagram.
Fig. 3 is the flow chart of HSDPA down physical channel power distribution method in the prior art.
Fig. 4 is the overview flow chart of HSDPA down physical channel power distribution method of the present invention.
Fig. 5 is the flow chart of selecting the user among the present invention and carrying out power division.
Fig. 6 is for increasing the flow chart that sends data volume among the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Core concept of the present invention is: Node B lateral root carries out the gross power that the user selects and distributes HS-SCCH channel and HS-PDSCH channel in real time according to the supply and demand situation of power, guarantees that the maximum transmit power that can provide is provided two channel power sums; When channel quality was relatively poor, Node B lateral root improved the correctness of demodulating data according to dynamically adjusting the gross power that surplus increases the HS-SCCH channel; And exist under the remaining situation of power, Node B lateral root has sent the transmission data volume of data user on the HS-PDSCH channel according to remaining power increase, to reach the purpose that makes full use of power resource.
As shown in Figure 4, the method for HSDPA down physical channel power division of the present invention may further comprise the steps:
Step 401:Node B is provided with maximum transmit power and dynamically adjusts surplus.
In the beginning of HSDPA down physical channel power division of the present invention, Node B side is provided with two numerical value: maximum transmit power and the dynamic surplus of adjusting.Wherein, the effect of maximum transmit power is: HS-SCCH and HS-PDSCH two channel gross power sums are limited within the available power bracket; The effect of dynamically adjusting surplus is: will reserve a part in the available maximum transmit power, so that when the HS-SCCH channel quality is relatively poor, the dynamic adjustment surplus that Node B side will reserve is increased on the gross power of HS-SCCH channel, to improve the correctness of demodulating data.Dynamically adjusting surplus represents with the form of percentage.
Step 402: will store the register zero clearing of this HS-SCCH gross power and HS-PDSCH gross power, and the HS-PDSCH gross power that once sends before obtaining.
Since the HS-SCCH channel aloft the descending delivery time on the interface in advance in 2 time slots of HS-PDSCH channel, and each subframe of two channels includes 3 time slots, and this makes the subframe of this HS-SCCH channel have overlapping of 1 time slot with the subframe of a preceding HS-PDSCH channel.Because in the time slot that overlaps, two channel gross power sums can not surpass the maximum transmit power of setting in the step 401, therefore when the gross power of this HS-SCCH channel of decision, consider the gross power of a preceding HS-PDSCH channel.
Step 403:Node B lateral root carries out the gross power that the user selected and distributed HS-SCCH and HS-PDSCH two channels according to the supply and demand situation of power.
Step 404:Node B side judges whether also to exist dump power by calculating, if then execution in step 405; Otherwise, the flow process of end HSDPA down physical channel power division.
The method that this step is calculated dump power is:
The gross power of (100%-dynamically adjusts surplus) * maximum transmission power-distribute to HS-SCCH channel-the distribute to gross power of HS-PDSCH channel.
For example: dynamically adjusting surplus is P%, and maximum transmission power is P
Max, the gross power of distributing to two down channels is respectively P
SCCHAnd P
PDSCH, then:
Dump power=(100%-P%) * P
Max-P
SCCH-P
PDSCH
If result of calculation then shows to have dump power greater than zero; Otherwise showing does not have dump power.
Step 405:Node B remains situation according to power, increases to have selected the transmission data volume of user on the HS-PDSCH channel.
As shown in Figure 5, step 403 Node B lateral root carries out user's selection and distributes the method for HS-SCCH and HS-PDSCH two channel powers may further comprise the steps according to the supply and demand situation of power:
Step 501:MAC-hs entity calculates the required HS-SCCH power of active user by the user profile of obtaining from Node B side.
In a tabulation, this step MAC-hs entity obtains active user's information to Node B side in the user list of Node B side, and calculates the needed HS-SCCH power of active user with all users' that communicating with information stores.
Step 502:MAC-hs entity calculates the gross power P behind the increase active user
Increase: P
IncreaseThe HS-SCCH gross power behind the=increase active user+preceding HS-PDSCH gross power that once sends.
The HS-SCCH gross power that increases in this step behind the active user is: the power of the HS-SCCH channel that the active user is required adds up mutually with numerical value in the register of storing the required HS-SCCH gross power of user.
Node B side after finishing at all users' down physical channel power division at every turn, the capital is stored the HS-PDSCH gross power of distributing in the independent register into, and the HS-PDSCH gross power that once sends before therefore can not lost because of the zero clearing of step 402.
Step 503: judge P
IncreaseWhether less than maximum transmit power, if then execution in step 504; Otherwise, execution in step 508.
The purpose of this step is: judge whether the maximum transmit power of setting can also satisfy the demand that sends data to the user under the condition that has increased the active user.
Step 504:MAC-hs entity calculates the HS-PDSCH power that the user can use: (100%-dynamically adjusts surplus) * maximum transmit power-P
Increase
Step 505: judge that whether HS-PDSCH power that the user can use dispose ideal power to the user greater than high level, if then execution in step 506; Otherwise execution in step 508.
Step 506:MAC-hs entity is tentatively determined the data volume to active user's transmission, and the HS-PDSCH power of definite active user's reality.
Channel quality information and the desirable power information of the high-rise user who disposes that this step MAC-hs entity at first reports in Node B side according to the active user, definite data volume that sends to the active user; Calculate under the situation that sends above-mentioned data volume needed HS-PDSCH channel power, thereby the HS-PDSCH power of definite active user's reality then.
Step 507:Node B side is selected the active user, upgrades HS-SCCH gross power and HS-PDSCH gross power, and user's information selected in record.
Through behind step 501～506, Node B side determines to satisfy active user's demand, therefore in this step the active user is chosen as to provide to send the data, services object; Then, Node B side adds up the HS-PDSCH power of active user's reality of calculating in the step 506 on the HS-PDSCH gross power before increasing the active user; Then, the gross power of distributing to HS-PDSCH is updated to above-mentioned accumulation result, and the gross power that will distribute to HS-SCCH is updated to the HS-SCCH gross power that increases in the step 502 behind the active user; At last, selected user's information is noted, when remaining, adjusted the data volume that sends to above-mentioned user for power in the subsequent step.
Step 508～509: judge that the user selects whether to finish, if then finish the flow process of this down physical channel power division; Otherwise, turn to next user in the user list with weighing object, and return execution in step 501.
Judge that the standard that the user selects whether to finish is: judge with user that Node B side is communicated by letter in, whether also have the user who is weighed power demand, if show that then the user selects not finish; Otherwise, show that the user selects to finish.
As shown in Figure 6, Node B lateral root remains situation according to power in the step 405, increases to have selected the method for the transmission data volume of user on the HS-PDSCH channel may further comprise the steps:
Step 601: judge whether the user who has selected can increase the data volume to its transmission, if then execution in step 602; Otherwise end increases the flow process of the transmission data volume on the HS-PDSCH channel.
Usually, the power of increase HS-PDSCH channel can increase the data volume that this channel sends to the user.But,, increase power and can't increase the data volume that sends to the active user if the data volume that sends reaches when not needed newly-increased data with the heap(ed) capacity of the code channel of telex network or user.Therefore, this step will judge whether to increase the data volume that sends to the user, judge promptly whether the code channel with telex network can transmit data or judge whether the user needs newly-increased data, so that in the subsequent step remaining power is used to increase data volume to user's transmission.
Step 602:MAC-hs entity increases active user's transmission data volume by Node B side, and calculates the actual HS-PDSCH power after the active user increases data volume.
In this step, the MAC-hs entity at first increases the data volume that sends to the active user according to remaining performance number and with active user's actual conditions; Then, on the active user's data volume that adds up the data volume that increases in step 506 to be calculated; At last, calculate the actual HS-PDSCH power of active user after increasing data volume according to the method for agreement regulation.
Here, described increase active user's transmission data volume generally is to determine recruitment according to the current actual conditions of this user, such as according to the communicate by letter carrying situation of code channel of active user, but promptly this code channel can also the data carried by data amount be determined recruitment; Or the data volume that increases according to active user self needs, but promptly the required total amount of data of the active user difference of data volume that deducts the ideal power correspondence of high-rise configuration is determined recruitment.In the above two kinds of cases, the MAC-hs entity is weighed dump power value and code channel can also the data carried by data amount or active user's data volume that need increase, and then definite data volume to the actual increase of active user.
Step 603:Node B side is upgraded the HS-PDSCH gross power.
Node B side increases actual HS-PDSCH power after the data volume with active user in the step 602 and adds up on the HS-PDSCH gross power before increasing data volume the magnitude of power that must make new advances; The gross power that to distribute to HS-PDSCH then is updated to accumulation result.
Step 604～605:Node B side judges whether to finish increase, and all have selected the user's data amount, if then end increases the flow process of the transmission data volume on the HS-PDSCH channel; Otherwise, turn to the next user in the user list, and return execution in step 602.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a high rate downlink data bag inserts the method for HSDPA down physical channel power division, it is characterized in that this method may further comprise the steps:
A. base station node B side is provided with maximum transmission power and dynamically adjusts surplus, the part of described dynamic adjustment surplus for reserving from described maximum transmission power;
B. the high-speed down link Physical Shared Channel HS-PDSCH power that once sends before obtaining;
High-speed shared control channel HS-SCCH that maximum transmit power that C.Node B lateral root certificate can provide and user are required and the gross power on the HS-PDSCH channel, selection can send the user of data and distribute HS-SCCH and the gross power of HS-PDSCH two channels to it;
D.Node B side judges whether also to exist dump power, if, execution in step E then, otherwise, the flow process of HSDPA down physical channel power division finished;
E.Node B lateral root has been selected the transmission data volume of user on the HS-PDSCH channel according to the increase of power surplus value.
2. the method for claim 1 is characterized in that, described step C may further comprise the steps:
C1. obtain user profile and calculate the required HS-SCCH power of active user from the NodeB side;
C2. calculate to increase HS-SCCH gross power and the preceding HS-PDSCH gross power sum that once sends behind the active user, as the gross power behind the increase active user;
C3. whether judge to increase gross power behind the active user less than maximum transmit power, if, then calculate the HS-PDSCH power that the user can use, otherwise, execution in step C6;
C4. judge that whether HS-PDSCH power that the user calculate can use dispose ideal power to the user greater than high level, if, then determine the data volume that sends to the active user, and calculate the HS-PDSCH power of active user's reality according to this data volume, otherwise execution in step C6;
C5.Node B side is selected the active user, upgrades HS-SCCH gross power and HS-PDSCH gross power, and user's information selected in record;
C6. judge that the user selects whether to finish, if, then finish the flow process of this down physical channel power division, otherwise, turn to next user and return execution in step C1.
3. the method for claim 1 is characterized in that, described step e may further comprise the steps:
E1. judge whether the user selected can increase the data volume to its transmission, if, execution in step E2 then, otherwise, finish to increase the flow process that sends data volume on the HS-PDSCH channel;
The E2.MAC-hs entity increases active user's transmission data volume by Node B side, and calculates the actual HS-PDSCH power after the active user increases data volume;
E3.Node B side is calculated and renewal HS-PDSCH gross power;
E4.Node B side judges whether to finish increase, and all have selected the user's data amount, if, then finish to increase the flow process that sends data volume on the HS-PDSCH channel, otherwise, turn to next user, and return execution in step E2.
4. method as claimed in claim 2, it is characterized in that the described MAC-hs entity of step C3 calculates the HS-PDSCH power that the user can use and is: 100% difference that deducts dynamic adjustment surplus multiply by and deducts the gross power that increases behind the active user behind the maximum transmit power again.
5. method as claimed in claim 3, it is characterized in that, step e 3 described calculating and renewal HS-PDSCH gross power are: the actual HS-PDSCH power that Node B side at first increases active user in the step e 2 after the data volume adds up in increasing on the data volume HS-PDSCH gross power before, and the gross power that will distribute to the HS-PDSCH channel then is updated to accumulation result.
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|---|---|---|---|---|
| CN100420340C (en) * | 2006-02-15 | 2008-09-17 | 华为技术有限公司 | HSDPA call ready to cut-in control method |
| CN101047939B (en) * | 2006-04-10 | 2010-05-12 | 华为技术有限公司 | Method and device for controling license code in high speed downlink packet access |
| CN100551115C (en) * | 2006-04-21 | 2009-10-14 | 华为技术有限公司 | The control method of licence during high speed downlink packet inserts |
| CN101128038B (en) * | 2006-08-15 | 2011-04-06 | 大唐移动通信设备有限公司 | Joint control method and device for sharing control channels in high-speed downlink packet access |
| CN101132202B (en) * | 2006-08-24 | 2011-03-30 | 大唐移动通信设备有限公司 | Method and device for adjusting power of high-speed downlink shared channel |
| CN1964208A (en) * | 2006-09-22 | 2007-05-16 | 华为技术有限公司 | A method to improve power utilization rate of multicarrier system |
| CN101247546B (en) * | 2007-02-13 | 2011-11-30 | 中兴通讯股份有限公司 | Power control method of physical channel mapped by high speed descending sharing channel |
| CN101316126B (en) * | 2007-06-01 | 2012-04-25 | 鼎桥通信技术有限公司 | HSDPA system power, synchronization control, beam shaping method and base station |
| CN101355779B (en) * | 2007-07-28 | 2011-08-10 | 中兴通讯股份有限公司 | Method for distributing carrier resource |
| CN101873687B (en) * | 2009-04-23 | 2013-09-11 | 电信科学技术研究院 | Power control method and device of high-speed physical downlink shared channel (HS-PDSCH) |
| CN101742624A (en) * | 2009-11-30 | 2010-06-16 | 华为技术有限公司 | Power control method and device and base station |
| CN105101377B (en) * | 2012-02-24 | 2018-11-02 | 电信科学技术研究院 | A kind of resource regulating method and device |
| CN114126026B (en) * | 2021-11-18 | 2024-02-23 | 中信科移动通信技术股份有限公司 | Resource block allocation method and device |
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| CN1717101A (en) | 2006-01-04 |
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