CN1774119A - Method for data transmission enhancing corresponding control signalling transmission in mobile communication system - Google Patents
Method for data transmission enhancing corresponding control signalling transmission in mobile communication system Download PDFInfo
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- CN1774119A CN1774119A CNA200410088913XA CN200410088913A CN1774119A CN 1774119 A CN1774119 A CN 1774119A CN A200410088913X A CNA200410088913X A CN A200410088913XA CN 200410088913 A CN200410088913 A CN 200410088913A CN 1774119 A CN1774119 A CN 1774119A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A method for transmitting control signaling of data transmission reinforcement correlation in mobile communication system includes realizing time and rate dispatch by utilizing absolute power command configuration and coding efficiency command configuration. It features that load of down link physical layer control signaling can be much reduced since only transmission power command configuration and coding efficiency command configuration are required in down link signaling with no transmission of transmitting format combination set command configuration and transmitting initial time as well as transmitting time internal.
Description
Technical field
The present invention relates to the data in mobile communication system transmission and strengthen relevant control signal transmission method, particularly be used for data traffic transmission enhanced physical layer signaling and transmission method thereof in the mobile communication system.
Background technology
Because wireless communication system is subjected to the influence of limited, mutual serious interference of frequency resource and fading channel, the spectrum efficiency that how to improve system is the emphasis of radio communication always.
In the downlink grouped data transmission, high speed downlink packet inserts (HSDPA) technology and has been proved to be effectively a kind of communication mode at present.The step of this method is as follows:
● the base station broadcast pilot signal provides subscriber equipment to carry out channel estimating;
● the result that subscriber equipment will be measured reports the base station;
● one or more users of data are determined to receive according to all users' channel situation operation dispatching in the base station in next transmission cycle;
● the base station notifies these users that need receive data to begin to receive, and also can notify the speed and other relevant informations that receive data in case of necessity;
● the user carries out processing after receiving data, and whether needs retransmit to feed back the base station according to the result who handles;
● the base station receives to retransmit to carry out when requiring and retransmits, otherwise finishes this data transfer.
From above-mentioned description, as can be seen, realize that said process need transmit some control signalings between subscriber equipment and base station, realize the fast dispatch and the control of data traffic transmission.On the transmission means of these control signalings, adopted two kinds of methods at present in Frequency Division Duplexing (FDD) (FDD) system and time division duplex (TDD) system respectively:
● the FDD system
Descendingly adopted shared physical control channel to come control channel, and the up Dedicated Physical Control Channel that adopted transmit the control corresponding signaling.
● the TDD system
Up-downgoing has all adopted shared physical control channel to transmit the control corresponding signaling.These physical control channels have been arranged, and control channel fast just between subscriber equipment and the base station is realized the fast dispatch of transfer of data, thereby is adapted to the variation of down channel condition better, improves the throughput of downlink data transmission.
In addition, the at present ongoing Enhancement Technology that also has transmitting uplink data.Wherein the comparison carried out of the up enhancement techniques of FDD system early on the mode that realizes from its scheduling, mainly contains two kinds of schemes at present:
● the rate scheduling method of base station (Node B) control (also being two threshold scheme)
In this scheme, each subscriber equipment is in the initialization procedure of dedicated transmission channel, and base station controller (RNC) distributes a transmission format composite set (Transport Format Combination Set is called for short TFCS) and two TFC threshold values for each subscriber equipment (UE).This TFCS has comprised multiple transmission rate.In two threshold values, one is the threshold value of UE, and another is the threshold value of Node B, and the threshold value of UE must not be greater than the threshold value of Node B.In communication process, UE can select transformat combination (TFC) with limitation in the given TFCS of RNC, that is to say that the TFC of selection must must not be greater than current UE threshold value.If the TFC that UE uses equals current UE threshold value, and UE thinks when also having a ability (as: current transmit power is much smaller than specified maximum transmission power) with higher rate transmission UE having the demand that improves transmission rate simultaneously, can improve the UE threshold value to Node B request, whether Node B allows UE to improve the threshold value of UE according to current noise situation decision.If allow UE to improve threshold value, the threshold value of UE can not surpass the threshold value of Node B.Concrete process is as follows:
The up signaling of physical layer is called speed application (Rate Request is called for short RR) and is specifically designed to the current UE threshold value of UE application change.When UE wished to improve current UE threshold value, just UE wished with higher rate sending data, and the value of RR is made as " Up ", when UE does not wish to change current UE threshold value, did not send RR.When the UE selection sends with little data rate, can directly use less TFC to get final product.
Having the downlink signaling of physical layer to be called speed simultaneously replys (Rate Grant is called for short RG) and is specifically designed to the speed application of UE is replied.When the value of RG is " Up ", illustrate that NodeB agrees that UE increases its UE threshold value.When UE proposes speed application (promptly sending RR=" Up "), and Node B illustrate that Node B disagrees with UE increase UE threshold value when not replying (promptly not sending RG).When the value of RG is " Down ", illustrate that Node B requires this UE to reduce its UE threshold value.
● the speed and the time scheduling method of base station (Node B) control
In this scheme, UE is before carrying out transfer of data, some information need be issued Node B to carry out the request of transfer of data, Node B is according to the information of receiving, calculate the quality of the wireless channel of UE, and, to whether allowing this UE to transmit, carry out transfer of data etc. with great speed and unify scheduling and arrange according to the situation of the request of current noise situation and other UE.Concrete process is as follows:
UE the uplink scheduling information control channel in, send the request of transfer of data.The information that sends comprises the state of the data buffer of UE, the power rating of UE and the maximum power capability of UE.
Node B monitors the length of data queue of each UE report and the information of transmitting power, is selecting the few UE even can be that a UE transmitted in the time period of next dispatching cycle of trying one's best under the condition that sub-district (Cell) noise allows.Node B replys selected UE by descending scheduling specified control channel.Institute's information transmitted comprises: allow transmission time and in the time period, maximum other the schedule information such as transmitting power that allows.The speed that the maximum of UE allows is the noise increase surplus according to Node B, the state of the data buffer of UE, and the power rating of UE and the factors such as maximum power capability of UE calculate.
As can be seen, in order to realize up enhancing, will transmit the control signaling of some physical layers too from two kinds of above-mentioned up enhanced scheme, to realize fast dispatch, adaptive channel changes better.In the up enhanced scheme of present FDD system, adopted Dedicated Physical Control Channel to transmit corresponding physical layer signaling.
For the TDD system, inevitably also need to transmit some physical layer control signalings among the enhanced scheme of line data transmission thereon, but up to the present which kind of physical control channel is its up enhanced scheme still among research, adopt come physical layer for transmission control signaling still not decide.
Inserting (HSDPA) technology for high speed downlink packet, is that FDD system or TDD system have all used shared physical control channel and come control channel, the problem of this shared physical control channel control channel of following surface analysis once:
● at first, if use shared channel to come the physical layer for transmission signaling, system must set the shared channel of some so.In case and after this number setting, have only the high-level signaling of utilization, and can make amendment to it, therefore this modification is very slowly.Because the number of users of up enhancing and required shared channel number are along with the time changes, if channel number is established many, will cause the waste of the resource of channel so, if and establish few, can cause some user's physical layer signaling to transmit again, therefore how setting suitable shared channel number is an insoluble problem.
● secondly, because being a plurality of UE, Uplink Shared Channel shares use, therefore might use some shared channels simultaneously by two or more UE, collision problem in the shared channel use will take place like this, that is to say to have at least two UE to issue Node B by the physical layer signaling that its up enhancing is relevant on this scheduling interval.Owing to be descending, so Node B knows the operating position of shared channel, therefore can not bump in the HSDPA technology.But in up enhancing, each UE can't know the operating position of Uplink Shared Channel, and therefore this collision problem is difficult to avoid.
● also have, if UE uses shared channel physical layer for transmission signaling, UE must also pass to Node B simultaneously with its identity recognition number (ID) so, and otherwise can't to discern be the physical layer signaling which UE sends to Node B.Yet UE ID is a sequence that reaches 10 bits, so its transmission, will increase the burden of signaling greatly, and this might have influence on other professional transmission performances.
● in addition, when Node B utilized Physical Downlink Shared Channel physical layer for transmission signaling, UE might and not know which shared channel Node B utilizes transmit, so UE need monitor a plurality of shared channels, had determined whether that physical layer signaling passes to it.The monitoring of a plurality of channels will increase the power consumption of UE greatly.
In the uplink strengthening data transmission technology of FDD system, its the up physical layer control signaling that will transmit mainly comprises the situation that takies of current data buffer, the current relevant out-of-band signalling of the automatic repeat requests of power rating, data transmission format, mixing etc., and the descending physical layer signaling that will transmit mainly comprises transport format combination set indication, transmission start time and the Transmission Time Interval of institute's assignment.Because the limited characteristic of code word of TDD system if the method for FDD system is used for the TDD system, except providing above-mentioned scheduling assignment, also will provide the assignment of code word.And because the changeability of TDD system uplink spreading factor, the assignment of code word will need the bit number about 10.From top description as can be seen, the scheme of FDD system is used for the TDD system, the signaling content that transmit still is many, and corresponding signaling burden is also heavier, and needed like this through-put power is also bigger, transmit can for like this other business and bring influence.
In addition, in the FDD system, exist the Dedicated Physical Control Channel (DPCCH) relevant to be used for power control and synchronous etc., therefore in the FDD system, can transmit the physical layer signaling that up enhancing is correlated with DPCCH with Dedicated Physical Data Channel (DPDCH).Yet in the TDD system, power control and synchronous signaling transmit in the data field of corresponding physical channel, therefore do not have DPCCH, also can't use this channel to transmit the physical layer signaling of Node B scheduling.Therefore, in the TDD system, need to introduce the physical layer signaling that new physical channel transmits Node B scheduling.In addition, there is its exclusive feature in the TDD system with respect to the FDD system, thus the TDD system uplink to strengthen the content and the FDD system of required physical layer signaling also different.
As can be seen, the up Enhancement Method in the FDD system also not exclusively be suitable for for the TDD system, and its signaling content is also more relatively from above-mentioned analysis, and the signaling burden of bringing is also bigger.Yet also there are a lot of problems at present in the shared physical control channel transmission method that uses in the HSDPA technology.Therefore the present invention has provided some effective mechanism and has reduced the bit number that transfer of data strengthens required physical layer control signaling, and utilize Dedicated Physical Control Channel to transmit these physical layer signalings, thereby reduced the required through-put power of control signaling, avoided influence other professional transmission.
Summary of the invention
The purpose of this invention is to provide a kind of transfer of data and strengthen relevant control signal transmission method, provide some effective mechanism and reduced transfer of data and strengthen the bit number of required physical layer control signaling and utilize the Dedicated Physical Control Channel to transmit the method for these physical layer signalings, be used for the enhancing of data traffic transmission.
For achieving the above object, a kind of data in mobile communication system transmission strengthens relevant control signal transmission method, comprising:
A) when subscriber equipment when having transfer of data to strengthen transmission demand, will send the request of setting up Dedicated Physical Control Channel to radio network controller;
B) if when current resource situation allows, radio network controller will be set up the required Dedicated Physical Control Channel of subscriber equipment;
C) the maximum transmission power ability of user equipment to report oneself is given the base station;
D) Dedicated Physical Control Channel set up of subscriber equipment utilization sends the buffer possession state information and the data transmission format information of subscriber equipment to the base station;
E) dispatch according to the maximum transmission power ability of user's channel condition, transfer of data demand and subscriber equipment the base station, determine the absolute transmitted power assignment of subscriber equipment and the assignment of code efficiency, and the Dedicated Physical Control Channel that passes through to be set up sends to subscriber equipment;
F) after subscriber equipment has obtained scheduling assignment, will transmit at the enterprising line data of Traffic Channel according to the absolute transmitted power and the code efficiency of institute's assignment;
G) will decode to it after receiving data block transmitted in the base station, and the Dedicated Physical Control Channel that passes through to be set up then receives response message with data block and sends to subscriber equipment;
H) after subscriber equipment receives that the data block reception is replied, reply (NACK) if receive correct the reception, with re-transmitting data block, otherwise to detect current enhancing data traffic transmission and whether finish;
I) radio network controller will be released to the Dedicated Physical Control Channel that the enhancing transfer of data is set up after receiving the enhancing data transfer request, send the release Dedicated Physical Control Channel to subscriber equipment afterwards and reply, and finish the enhancing data transmission procedure.
The present invention proposes and be used for some effective mechanism of TDD cdma system and reduced transfer of data and strengthen the bit number of required physical layer control signaling and utilize the Dedicated Physical Control Channel to transmit the method for these physical layer signalings.Utilize the signaling transmission mechanism that provides in the inventive method, the signaling of bringing burden is little, and required through-put power is few.Utilize DPCH to come the physical layer for transmission signaling, each user has special-purpose physical channel to come the physical layer for transmission signaling, the collision problem of having avoided shared control channel to use.Utilize Dedicated Physical Control Channel physical layer for transmission signaling, need not transmit the identifier of subscriber equipment, the signaling burden is little.Utilize Dedicated Physical Control Channel physical layer for transmission signaling, subscriber equipment only need be monitored own special-purpose physical control channel, and the subscriber equipment power consumption is less.Utilize the inventive method, it is less that physical layer for transmission is controlled the required power of signaling, little for other professional transmission influences, thereby can effectively obtain up enhancing transmission gain, improves the transfer of data throughput of system, and the business of increase system covers.The scope of application of the present invention is wider, both has been applicable to high code check TDD mobile communication system, is applicable to low code check mobile communication system again.
Description of drawings
Fig. 1 is that transfer of data strengthens relevant control signal transmission method implementation procedure.
Embodiment
Realize the enhancement techniques of transfer of data, will guarantee that the control signaling of being correlated with can correctly receive, this sends these signalings with regard to needing enough power.According to shannon formula, can obtain:
Wherein, R
SigBe the information bit speed of signaling, P
rAnd P
tBe respectively the received power and the transmitted power of control corresponding channel, L is a path loss, and B is a bandwidth, and I is for disturbing N
0Be noise.From formula as can be seen, if the bit number that comprises in the signaling is many more, so needed transmitted power is also just big more, the power resource that consumes and also big more to interference that other business caused, therefore, will badly influence the transmission of Traffic Channel so if the required power of signaling channel is too big.Therefore, when the design data transmission strengthens relevant physical layer signaling, will reduce the information bit number of physical layer control signaling as far as possible.
The present invention has provided some effective mechanism and has reduced the bit number that transfer of data strengthens required physical layer control signaling, and utilize Dedicated Physical Control Channel to transmit these physical layer signalings, thereby reduced the required through-put power of control signaling, avoided influence other professional transmission.
The basic principle of the inventive method is to utilize the assignment of absolute power assignment and code efficiency to realize time and rate scheduling, in downlink signaling, just only need through-put power assignment and coding efficiency appointment like this, and need not to send transport format combination set assignment and transmission start time and Transmission Time Interval, thereby reduced the burden of down physical layer control signaling.In addition, because the absolute power assignment is carried out to subscriber equipment in the base station, the power rating of grasping subscriber equipment can be known in the base station, so subscriber equipment also just need not the transmitted power state information accordingly to the base station.In addition, owing to adopted the synchronous mixing of catching up with merging (chase combining) to retransmit (HARQ) mode automatically in the method, the relevant out-of-band signalling of corresponding HARQ also need not to send.So also just significantly reduced the burden of upstream physical layer control signaling.In addition, this method has utilized Dedicated Physical Control Channel to come the physical layer for transmission signaling, need not the identifier of transmission user equipment like this in physical layer signaling, thereby greatly reduces the burden of signaling; Because Dedicated Physical Control Channel has power control characteristic preferably, so also can avoid the waste of signaling through-put power in addition.
Below action of the present invention is described:
The present invention has provided the less transfer of data of signaling burden that is used for the TDD cdma system and has strengthened the content of relevant physical layer signaling, and has proposed to utilize Dedicated Physical Control Channel to transmit the method for these physical layer signalings, is used for the enhancing of data traffic transmission.
Provided the method that reduces the downlink signaling burden at first, in the present invention.
In the methods of the invention, the base station utilizes the assignment of power assignment and code efficiency, retransmits time and the rate scheduling of realizing transfer of data automatically in conjunction with mixing.According to Shannon's theorems, the transmitted power of subscriber equipment is big more, and the signal to noise ratio that receives of relevant base station is big more so, and the data rate that can transmit is also big more like this.When giving the bigger power of subscriber equipment assignment like this, give the bigger code efficiency of subscriber equipment assignment, and less number of retransmissions, just can realize bigger velocity allocating; Equally,, give the less code efficiency of subscriber equipment assignment when giving subscriber equipment assignment smaller transmission power simultaneously, and more number of retransmissions, just can realize less velocity allocating.And, just mean that also this user of assignment temporarily stops transfer of data when the power of giving the subscriber equipment assignment during less than certain thresholding.Therefore utilizing the assignment of power assignment and code efficiency is to realize the time of data traffic transmission and rate scheduling, has so just avoided the indication of transmission transport format combination set and transfer of data zero-time and Transmission Time Interval, and the assignment of code word.Because the assignment of up code word in the TDD system is with the bit number of about 10 of needs.Therefore adopt method among the present invention can significantly reduce the burden of down physical layer signaling.
Secondly, the inventive method has provided the method that reduces up signaling burden.
In the methods of the invention, utilize the assignment of absolute power assignment and code efficiency, again in conjunction with mixing automatic repeat requests, realize the time and the rate scheduling of transfer of data, therefore the base station is to know the power rating of grasping subscriber equipment, therefore subscriber equipment also just need not to transmit own power rating again and gives the base station, and the signaling that has correspondingly also just reduced this part is born.In addition, method among the present invention, when mixing re-transmission automatically, only have the change of assignment power and do not have the variation of channel bit, therefore can adopt the synchronous mixing of catching up with merging (Chase Combining) to retransmit mode automatically, so also just can not have and mix the automatic relevant up out-of-band signalling that retransmits.Therefore adopt method among the present invention can significantly reduce the burden of upstream physical layer signaling.
Provided the process that the inventive method realizes afterwards, as shown in Figure 1.
101, whether user equipment monitors has the demand that strengthens transfer of data.If no, then continue monitoring;
102, if having then send to strengthen data transfer request to radio network controller;
103, the maximum transmission power ability of user equipment to report oneself is given the base station;
104, radio network controller will be handled request after the request of receiving, judge whether current resource situation can satisfy its transfer of data and strengthen demand,, strengthen required Dedicated Physical Control Channel setting up this user data transmission if resource situation allows;
105, after channel foundation is finished, radio network controller will send Dedicated Physical Control Channel foundation to subscriber equipment and reply;
106, subscriber equipment will utilize the Dedicated Physical Control Channel of being set up to send transfer of data and strengthen relevant up signaling after receiving that foundation is replied.The content of up signaling comprises buffer possession state information, and also will comprise data transmission format information after transfer of data begins.Owing to utilized absolute transmitting power assignment in the method, the subscriber equipment corresponding transmission power has also just been known in the base station, does not therefore need to send the current transmitting power state of subscriber equipment and mixes the relevant out-of-band signalling of automatic repeat requests;
107, handle the up signaling that subscriber equipment sends the base station, and in conjunction with the information that some this locality can reference the transfer of data of subscriber equipment is dispatched, and determines operable transmitted power of subscriber equipment and code efficiency.Wherein, owing to used absolute power dispatching in this method, so the base station can know the power rating of grasping subscriber equipment, and therefore, the power rating of subscriber equipment also is one of information that the base station can reference;
108, the base station will utilize the Dedicated Physical Control Channel of being set up that scheduling assignment is sent to subscriber equipment by downlink signaling after dispatching.The content of downlink signaling will comprise the absolute power assignment and the coding efficiency appointment of subscriber equipment.In the methods of the invention, scheduling assignment does not need the assignment of transport format combination set and transmission start time and Transmission Time Interval;
109, subscriber equipment will be according to the transmitted power of institute's assignment and code efficiency at the Traffic Channel transmitting data after having obtained scheduling assignment;
110, will decode to data block after the data block that receives the subscriber equipment transmission in the base station, judge whether correct reception;
111, if correct the reception, the base station will send correct the reception to subscriber equipment and reply (ACK) on the Dedicated Physical Control Channel of being set up, and otherwise send incorrect the reception and reply (NACK);
112, judge whether the data traffic transmission that strengthens finishes, if finish execution in step 112, otherwise execution in step 105;
113, subscriber equipment will send to radio network controller and strengthen the data traffic transmission ending request, and request discharges the Dedicated Physical Control Channel of being set up.
114, radio network controller will be released to this user data transmission and strengthen the shared physical resource of being set up of Dedicated Physical Control Channel, so that other users use.
115, send the release Dedicated Physical Control Channel to subscriber equipment and reply, finish to strengthen data transmission procedure.
Embodiment
The present invention has provided and has been used for some effective mechanism of TDD cdma system and has reduced transfer of data and strengthen the bit number of required physical layer control signaling and utilize the Dedicated Physical Control Channel to transmit the method for these physical layer signalings, is used for the enhancing of data traffic transmission.For the ease of understanding the present invention, provided the embodiment of a LCRTDD system uplink enhanced physical layer control signaling and transmission method thereof below.
At first provide the inventive method and be used for content and the needed information bit that the LCRTDD system uplink strengthens required physical layer control signaling, to assess its signaling burden.
● up signaling
Schedule information comprises in the present embodiment: the buffer possession state.If the scale of this parameter is 1/8, the required bit number of this information is 3 bits so.
The transformat that provides in this method comprises: the transmission block size.The size of transmission block, similar to the high speed downlink packet access, need 6 bits.
Adopt merging (Chase Combining) and the synchronous HARQ mode of catching up with in the method, therefore the out-of-band signallings such as process identifier, new data indication and increase redundancy versions that do not need transmitting HARQ, thereby the required relevant signaling bit number of ascending HARQ is zero in this method.
● downlink signaling
Scheduling assignment
The parameter that comprises of scheduling assignment information has in the method: the transmitted power of subscriber equipment and code efficiency.According to existing standard, the dynamic range of subscriber equipment uplink transmission power is 80dB, and the bit number of the absolute transmitted power needs of assigned user equipment is 7.Suppose that the coding efficiency appointment that this method provides has 4 kinds, the bit number that needs so is 2.Thereby 9 bits are wanted in the supply and demand of scheduling assignment information.
Refer to correct reception and reply (ACK) or reply (NACK), need 1 bit for correct the reception.
Like this, utilize this method to realize that the information bit of the upstream physical layer signaling that up enhancing is required is 9, and required down physical layer signaling information bit number is 10, the signaling burden of being brought by above-mentioned signaling bit also is less relatively.
When the data service of subscriber equipment during by up enhancing demand, just need the relevant physical layer control signaling of the up enhancing of transmission, will finish the process of setting up of Dedicated Physical Control Channel accordingly, its process is as follows:
Subscriber equipment sends the request of setting up the up-downgoing Dedicated Physical Control Channel to radio network controller.If current resource situation allows after the radio network controller request of having received, will distribute to the user and set up the required physical resource of Dedicated Physical Control Channel.For the LCRTDD system, required physical resource includes sets up required time slot of this channel and code word, and this and FDD system are different, set up DPCH in the FDD system, do not need to distribute time slot and code word.After Dedicated Physical Control Channel foundation is finished, subscriber equipment just can utilize up Dedicated Control Channel to send the up signaling of 9 above-mentioned bits and the downlink signaling of 10 bits to the base station, realize the fast dispatch and the HARQ of upstream data service transmission, thereby realize the up enhancing of data traffic transmission.Because the physical layer signaling bit number of the required transmission of the inventive method is less, and has utilized Dedicated Physical Control Channel to transmit these signalings, so the required power of respective transmissions signaling is also less, also less for influences of other professional transmission like this.Therefore, utilize the inventive method influencing under the less prerequisite, obtain bigger up enhancing gain other professional transmission.
Claims (4)
1. a data in mobile communication system transmission strengthens relevant control signal transmission method, comprising:
A) when subscriber equipment when having transfer of data to strengthen transmission demand, will send the request of setting up Dedicated Physical Control Channel to radio network controller;
B) if when current resource situation allows, radio network controller will be set up the required Dedicated Physical Control Channel of subscriber equipment;
C) the maximum transmission power ability of user equipment to report oneself is given the base station;
D) Dedicated Physical Control Channel set up of subscriber equipment utilization sends the buffer possession state information and the data transmission format information of subscriber equipment to the base station;
E) dispatch according to the maximum transmission power ability of user's channel condition, transfer of data demand and subscriber equipment the base station, determine the absolute transmitted power assignment of subscriber equipment and the assignment of code efficiency, and the Dedicated Physical Control Channel that passes through to be set up sends to subscriber equipment;
F) after subscriber equipment has obtained scheduling assignment, will transmit at the enterprising line data of Traffic Channel according to the absolute transmitted power and the code efficiency of institute's assignment;
G) will decode to it after receiving data block transmitted in the base station, and the Dedicated Physical Control Channel that passes through to be set up then receives response message with data block and sends to subscriber equipment;
H) after subscriber equipment receives that the data block reception is replied, reply (NACK) if receive correct the reception, with re-transmitting data block, otherwise to detect current enhancing data traffic transmission and whether finish;
I) radio network controller will be released to the Dedicated Physical Control Channel that the enhancing transfer of data is set up after receiving the enhancing data transfer request, send the release Dedicated Physical Control Channel to subscriber equipment afterwards and reply, and finish the enhancing data transmission procedure.
2. method according to claim 1 is characterized in that: in steps d, utilize the transmitted power of base station assigned last time and the received power that base station measurement arrives, determine the channel condition of subscriber equipment.
3. method according to claim 1 is characterized in that: in steps d, utilize the transmitted power of base station assigned last time deduct base station measurement to received power obtain the channel condition of each subscriber equipment.
4. method according to claim 1 is characterized in that having utilized in the TDD system Dedicated Physical Control Channel to come the relevant physical layer control signaling of transmitting and scheduling.
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