CN101404562B - Velocity regulation method, system and equipment for special physical control signal channel - Google Patents
Velocity regulation method, system and equipment for special physical control signal channel Download PDFInfo
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- CN101404562B CN101404562B CN2008102270495A CN200810227049A CN101404562B CN 101404562 B CN101404562 B CN 101404562B CN 2008102270495 A CN2008102270495 A CN 2008102270495A CN 200810227049 A CN200810227049 A CN 200810227049A CN 101404562 B CN101404562 B CN 101404562B
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Abstract
The embodiment of the invention discloses a rate adjustment method of an associated dedicated physical control channel (ADPCH). The method is as follows: determining a present downlink group data transmission rate of terminals and a transmission rate of the ADPCH distributed for the terminals when the terminal number of a district changes; judging whether the two transmission rates satisfy a presetting proportional relation; if not, determining the transmission rate of the ADPCH of the terminal required to adjust; then determining the transmission rate of the ADPCH which satisfies the proportional relation with the present downlink group data transmission rate of the terminal; and redistributing code resource for the ADPCH of the terminal according to a code resource distribution strategy corresponding to the determined transmission rate of the ADPCH, and adjusting the transmission rate of the ADPCH of the terminal. The embodiment of the invention further discloses a rate adjustment system and a rate adjustment device. By adopting the method, the system and the device, the transmission rate of the ADPCH can be adjusted according to the number change of users in the district.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of rate adjusting method, system and equipment of following Dedicated Physical Control Channel (ADPCH).
Background technology
High-speed downlink packet access (High Downlink Packet Access, HSDPA) technology have been proposed in the 5th version (Reslease 5) of TD SDMA (TD-SCDMA) system.The HSDPA technology adopts mixes the mechanism such as (HARQ) and 16 quadrature amplitude modulation (16QAM) that retransmit automatically, and in base station side realization fast dispatch, thereby the variation of reflection terminal channel that can be quick self-adapted obtains higher terminal peak rate and cell data throughput.
In order to support the HSDPA technology, the channel that TD-SCDMA increases newly comprises: high speed descending sharing channel (High Speed Downlink Shared Channel, HS-DSCH), high-speed physical downlink shared channel (HS-PDSCH) (High Speed Physical Downlink Shared Channel, HS-PDSCH), HS-DSCH shared control channel (Shared Control Channel for HS-DSCH, HS-SCCH) and HS-DSCH share information channel (Shared Information Channel for HS-DSCH, HS-SICH), wherein:
HS-DSCH is the transmission channel that increases newly, is used to carry high-speed down data, is mapped on the physical channel HS-PDSCH.In order to support the HSDPA function, (UniversalTerrestrial Radio Access Network UTRAN) supports HS-PDSCH and HS-SCCH channel to global terrestrial radio Access Network on down link, support the HS-SICH channel on up link.
HS-PDSCH is used to carry the high-speed terminal downlink data, uses spreading factor SF=16 or SF=1, and modulation technique adopts Quadrature Phase Shift Keying (QPSK) and 16QAM.
HS-SCCH is mainly used in the signaling information of carries downlink.These signaling informations comprise channelization code set, gap information, modulation system, transmission block size, HARQ process number (HARQ ProcessID), redundancy versions, new data flag, HS-SCCH cyclic sequence number and terminal iidentification (UEID) etc.HS-SCCH uses spreading factor SF=16.
HS-SICH is a uplink physical channel, is mainly used in to carry the signaling information relevant with HS-DSCH.These signaling informations comprise that HARQ confirms/deny to reply the channel quality indication (CQI) of (ACK/NACK), down link.The channel quality indication (CQI) of down link comprises to be recommended modulation system (RMF) and recommends transmission block size (RTBS).HS-SICH uses spreading factor SF=16.
What in addition, HSDPA used former the 4th version (Release 4) follows Dedicated Physical Control Channel (ADPCH) command transmitting, power control commands and synchronizing information etc.Wherein up ADPCH also is used for transmitting upstream.
The HSDPA terminal is when carrying out service access, and network side is this terminal distribution ADPCH, to satisfy the needs of traffic signaling and transmitting uplink data.According to different terminal requirements, be reached for the purpose that terminal distribution has the ADPCH of different transmission rates when network side distributes ADPCH, have the ADPCH of 16kbps, 32kbps or 64kbps transmission rate such as distribution by distributing different sign indicating number resources.
Behind terminal distribution ADPCH, terminal uses the ADPCH and the network side that distribute to initiate normal HSDPA business, network side uses the ADPCH that distributes to send traffic signaling, power control commands and synchronizing information etc. to this terminal, up to the link disconnection of terminal with network side, both sides discharge ADPCH, finish this communication.
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
Under the existing system, each HSDPA terminal uses network side to distribute to the ADPCH of this terminal after inserting always, disconnects until the communication link with network side.Under this mode, may cause the poor efficiency of the ADPCH of system resource and HS-DSCH resource to use, reason is:
The HSDPA system adopts the fast dispatch algorithm, by time-division or the scheduling of sign indicating number branch to different terminals, guarantees that macroscopic view goes up " simultaneously online " of a plurality of terminals, that is to say, by the downlink bandwidth resource of a plurality of terminals while shared systems.When terminal quantity for a long time, if according to the direct ratio fair scheduling algorithm, the Mean Speed of each terminal will descend; And work as terminal quantity after a little while, the Mean Speed of each terminal will rise.Theoretical and field trial all shows, the transmission rate of ADPCH and the highest downstream rate of terminal have certain direct proportion restriction relation, as in field trial, when the transmission rate of ADPCH is 64kbps, the terminal downstream rate can reach 1.1Mbps, and when the ADPCH transmission rate is 16kbps, above-mentioned terminal downstream rate will obviously descend.So, when terminal inserts because carrying terminal in sub-district is more, may distribute the ADPCH that has than low transmission rate, and along with the minimizing of cell terminal quantity, under terminal unit contractual speed allows, this terminal downstream rate will constantly rise, and be that the ADPCH of terminal distribution just might become the bottleneck that downstream rate increases when inserting so.Same, when terminal inserts because carrying terminal in sub-district is less, may distribute ADPCH with higher transmission rates, and along with the increase of cell terminal quantity, this terminal downstream rate will be that the transmission rate of the higher ADPCH of terminal distribution can not get effective utilization when inserting so along with decline.
Summary of the invention
The embodiment of the invention provides rate adjusting method, system and the equipment of a kind of ADPCH, before being used for solving prior art HSDPA terminal and after service access, with the communication link of network side, disconnecting, use network side to distribute to the ADPCH of this terminal always, cause the problem of the poor efficiency utilization of the ADPCH of system resource and HS-DSCH resource.
The embodiment of the invention provides the rate adjusting method of a kind of ADPCH, and this method comprises:
Determine whether the terminal quantity that inserts the sub-district changes;
Terminal quantity when described sub-district changes, and determines the current downlink grouped data transmission rate of described terminal and is the transmission rate of the ADPCH of described terminal distribution; Judge whether current downlink grouped data transmission rate of described terminal and transmission rate for the ADPCH of described terminal distribution satisfy the proportionate relationship of the transmission rate of the downlink grouped data transmission rate that sets in advance and ADPCH; If do not satisfy, then determine to adjust the transmission rate of the ADPCH of described terminal; Otherwise, not need to determine to adjust the transmission rate of the ADPCH of described terminal;
When the transmission rate of the ADPCH that determine to need adjusts terminal, determine to satisfy the transmission rate of the ADPCH of described proportionate relationship with the current downlink grouped data transmission rate of described terminal; Determine the sign indicating number resource allocation policy of the transmission rate correspondence of described ADPCH; According to described sign indicating number resource allocation policy, for the ADPCH of described terminal redistributes a yard resource, with the transmission rate of the ADPCH that adjusts described terminal; The current downlink grouped data transmission rate of described terminal refers to the speed of high speed downlink shared channel HS-DSCH to this terminal transmission downlink data.
The embodiment of the invention provides a kind of speed to adjust equipment, and this equipment comprises:
The terminal quantity determining unit is used for determining whether the terminal quantity that inserts the sub-district changes;
Speed is adjusted decision unit, comprises first rate determining unit, ratio judging unit and decision unit; Described first rate determining unit is used for determining the current downlink grouped data transmission rate of described terminal and is the transmission rate of the ADPCH of described terminal distribution; Described ratio judging unit is used to judge whether current downlink grouped data transmission rate of described terminal and transmission rate for the ADPCH of described terminal distribution satisfy the proportionate relationship of the transmission rate of the downlink grouped data transmission rate that sets in advance and ADPCH; Described decision unit is used for when described ratio judgment unit judges does not satisfy proportionate relationship, determines to adjust the transmission rate of the ADPCH of described terminal; When described ratio judgment unit judges satisfies proportionate relationship, not need to determine to adjust the transmission rate of the ADPCH of described terminal; The current downlink grouped data transmission rate of described terminal refers to the speed of HS-DSCH to this terminal transmission downlink data;
The channel speed adjustment unit comprises second rate determination unit, tactful determining unit and resource allocation unit; Described second rate determination unit is used for when determining that needs are adjusted the transmission rate of ADPCH of terminal, determines and downlink grouped data transmission rate that described terminal is current satisfies the transmission rate of the ADPCH of described proportionate relationship; Described tactful determining unit is used for determining the sign indicating number resource allocation policy of the transmission rate correspondence of described ADPCH; Described resource allocation unit is used for according to described sign indicating number resource allocation policy, for the ADPCH of described terminal redistributes a yard resource, with the transmission rate of the ADPCH that adjusts described terminal.
The embodiment of the invention provides the speed Adjustment System of a kind of ADPCH, and this system comprises:
Speed is adjusted equipment, is used for determining whether the terminal quantity that inserts the sub-district changes; Terminal quantity when described sub-district changes, and determines the current downlink grouped data transmission rate of described terminal and is the transmission rate of the ADPCH of described terminal distribution; Judge whether current downlink grouped data transmission rate of described terminal and transmission rate for the ADPCH of described terminal distribution satisfy the proportionate relationship of the transmission rate of the downlink grouped data transmission rate that sets in advance and ADPCH; If do not satisfy, then determine to adjust the transmission rate of the ADPCH of described terminal; Otherwise, not need to determine to adjust the transmission rate of the ADPCH of described terminal; When the transmission rate of the ADPCH that determine to need adjusts terminal, determine to satisfy the transmission rate of the ADPCH of described proportionate relationship with the current downlink grouped data transmission rate of described terminal; Determine the sign indicating number resource allocation policy of the transmission rate correspondence of described ADPCH; According to described sign indicating number resource allocation policy,,, and the code resource information of redistributing sent to described terminal with the transmission rate of the ADPCH that adjusts described terminal for the ADPCH of described terminal redistributes a yard resource; The current downlink grouped data transmission rate of described terminal refers to the speed of high speed downlink shared channel HS-DSCH to this terminal transmission downlink data;
Terminal is used for according to the described code resource information that receives, and resets the sign indicating number resource allocation information of self, and utilizes the sign indicating number resource transmission upstream data that distributes.
In the scheme that the embodiment of the invention provides, when the terminal quantity that inserts the sub-district changes, determine whether the transmission rate of the ADPCH of needs adjustment terminal according to the ADPCH speed regulation rule that sets in advance, and when the transmission rate of the ADPCH that determines needs adjustment terminal, by redistributing the transmission rate that yard resource is adjusted the ADPCH of this terminal for the ADPCH of terminal, realized dynamically adjusting the transmission rate of ADPCH according to the community user number, make the ADPCH of system resource to be utilized effectively, the transmission rate of dynamically adjusting ADPCH simultaneously makes the transmission rate of ADPCH no longer become the growth bottleneck of user's downstream rate, and the HS-DSCH resource has also obtained effective utilization.
Description of drawings
The method flow schematic diagram that Fig. 1 provides for the embodiment of the invention;
The system configuration schematic diagram that Fig. 2 provides for the embodiment of the invention;
The device structure schematic diagram that Fig. 3 provides for the embodiment of the invention.
Embodiment
In order to adjust the transmission rate of user's ADPCH dynamically, make the ADPCH of system resource and HS-DSCH resource be utilized effectively, the embodiment of the invention provides the rate adjusting method of a kind of ADPCH, in this method, when the terminal quantity that inserts the sub-district changes, determine whether that according to the ADPCH speed regulation rule that sets in advance needs adjust the transmission rate of the ADPCH of terminal, if need, the transmission rate of the sign indicating number resource adjustment ADPCH by redistributing ADPCH then.
Referring to Fig. 1, the rate adjusting method of the ADPCH that the embodiment of the invention provides specifically may further comprise the steps:
Step 10: determine whether the terminal quantity that inserts the sub-district changes;
In this step, can determine whether the terminal quantity that inserts this base station institute coverage cell changes by the base station, concrete, a timer can be set, during every timer expiry, the quantity of the terminal of present access subzone is determined in the base station, and the terminal quantity of the access sub-district of being write down during with the quantity of the terminal of the present access subzone determined and last timer expiry compares, if the terminal quantity of the access sub-district of being write down when the quantity of the terminal of present access subzone and last timer expiry is inconsistent, determine that then the terminal quantity that inserts the sub-district changes, if consistent, determine that then the terminal quantity that inserts the sub-district does not change.Write down the terminal quantity of present access subzone simultaneously, provide comparison other whether change for the terminal quantity of judging the access sub-district next time.
Step 11: when the terminal quantity of determining the sub-district changes, determine whether the transmission rate of the ADPCH of needs adjustment terminal according to the ADPCH speed regulation rule that sets in advance;
In this step, ADPCH speed regulation rule can have multiple, below with wherein three kinds be illustrated:
First kind, ADPCH speed regulation rule is: when the downlink grouped data transmission rate of terminal does not satisfy the proportionate relationship that sets in advance with the transmission rate that is the ADPCH of this terminal distribution, need the transmission rate of the ADPCH of adjustment terminal.Determine whether that according to this ADPCH speed regulation rule needs adjust being implemented as follows of transmission rate of the ADPCH of terminal:
At first, determine downlink grouped data transmission rate that terminal is current and be the transmission rate of the ADPCH of this terminal distribution; Here, the downlink grouped data transmission rate of terminal refers to the speed of HS-DSCH to this terminal transmission downlink data, can determine HS-DSCH to the speed of this terminal transmission downlink data and be the transmission rate of the ADPCH of this terminal distribution by the base station, for the transmission rate of the ADPCH of this terminal distribution is the transmission rate that ADPCH had that this terminal network side when carrying out service access is distributed to this terminal.
Then, judge whether current downlink grouped data transmission rate of terminal and transmission rate for the ADPCH of this terminal distribution satisfy the proportionate relationship of the transmission rate of the downlink grouped data transmission rate that sets in advance and ADPCH; This proportionate relationship can be a proportional relationship.
At last, when the current downlink grouped data transmission rate of judgement does not satisfy default proportionate relationship with the transmission rate that is the ADPCH of this terminal distribution, determine to adjust the transmission rate of the ADPCH of described terminal; When proportionate relationship is satisfied in judgement, not need to determine to adjust the transmission rate of the ADPCH of described terminal.Here, in order to make the downlink grouped data transmission rate of terminal can be controlled in the signatory speed of user, before the transmission rate of the ADPCH that determines the described terminal of needs adjustment, can also judge whether the current downlink grouped data transmission rate of terminal has surpassed the signatory speed that the user sets this terminal, if do not surpass, then just determine to need adjust the transmission rate of the ADPCH of this terminal, otherwise, do not need to determine to adjust the transmission rate of the ADPCH of this terminal.
Second kind, ADPCH speed regulation rule is: when the number of users for the transmission rate of the ADPCH of terminal distribution and present access subzone does not satisfy the proportionate relationship that sets in advance, need the transmission rate of the ADPCH of adjustment terminal.Determine whether that according to this ADPCH speed regulation rule needs adjust being implemented as follows of transmission rate of the ADPCH of terminal:
At first, be defined as the transmission rate of the ADPCH of terminal distribution; Specifically can determine that this terminal network side when carrying out service access distributes to the transmission rate that ADPCH had of this terminal by the base station.
Then, be judged as the transmission rate of ADPCH of this terminal distribution and the number of users of present access subzone and whether satisfy the transmission rate of the ADPCH that sets in advance and the proportionate relationship of community user number; This proportionate relationship can be an inversely prroportional relationship.
At last, when the number of users of the transmission rate of the ADPCH that is judged as this terminal distribution and present access subzone does not satisfy default proportionate relationship, need to determine to adjust the transmission rate of the ADPCH of described terminal; When proportionate relationship is satisfied in judgement, not need to determine to adjust the transmission rate of the ADPCH of described terminal.
The third, ADPCH speed regulation rule is: when the transmission rate that is the ADPCH of terminal distribution does not satisfy the rate-valve value that sets in advance, need the transmission rate of the ADPCH of adjustment terminal.Determine whether that according to this ADPCH speed regulation rule needs adjust being implemented as follows of transmission rate of the ADPCH of terminal:
At first, be defined as the transmission rate of the ADPCH of terminal distribution; Specifically can determine that this terminal network side when carrying out service access distributes to the transmission rate that ADPCH had of this terminal by the base station.
Then, whether the transmission rate that is judged as the ADPCH of this terminal distribution satisfies the rate-valve value that sets in advance; Concrete, can be different numbers of users or number of users scope setting rate-valve value, whether the transmission rate that need be judged as the ADPCH of this terminal distribution so, here when judging satisfies the number of users of present access subzone or the pairing rate-valve value of number of users scope under this number of users.For example, preset user is counted 0-100 corresponding speed threshold value 64kbps, number of users 100-200 corresponding speed threshold value 32kbps, number of users 200-300 corresponding speed threshold value 16kbps, the number of users of present access subzone is 150, so according to the corresponding relation of preset user number and rate-valve value, can determine number of users 150 corresponding speed threshold value 32kbps, if not being 32kbps or both gaps, the transmission rate of the ADPCH of this terminal distribution do not surpass the scope of setting, then decidable does not satisfy the rate-valve value that sets in advance for the transmission rate of the ADPCH of this terminal distribution, otherwise decidable satisfies the rate-valve value that sets in advance for the transmission rate of the ADPCH of this terminal distribution.
At last, when the transmission rate of the ADPCH that is judged as this terminal distribution does not satisfy the rate-valve value that sets in advance, determine to adjust the transmission rate of the ADPCH of described terminal; When proportionate relationship is satisfied in judgement, not need to determine to adjust the transmission rate of the ADPCH of described terminal.
Step 12: when the transmission rate of the ADPCH that determines needs adjustment terminal,, comprise the transmission rate of adjusting up ADPCH and descending ADPCH by for the ADPCH of described terminal redistributes the transmission rate that yard resource is adjusted the ADPCH of described terminal;
In this step, corresponding to above-mentioned first kind of ADPCH speed regulation rule, the concrete grammar of the transmission rate of the ADPCH of adjustment terminal is:
At first, determine to satisfy the transmission rate of the ADPCH of the proportionate relationship that is provided with the current downlink grouped data transmission rate of terminal;
Then, determine the sign indicating number resource allocation policy of the transmission rate correspondence of described ADPCH; Concrete, the network plan can be preserved the transmission rate of ADPCH and the corresponding relation of sign indicating number resource allocation policy, the base station can be learnt according to this corresponding relation and will make ADPCH have how assigned code resource of above-mentioned transmission rate needs, promptly be determined the sign indicating number resource allocation policy of the transmission rate correspondence of described ADPCH;
At last,, be the ADPCH assigned code resource of terminal, make ADPCH have above-mentioned definite transmission rate according to above-mentioned definite sign indicating number resource allocation policy.
Corresponding to above-mentioned second kind of ADPCH speed regulation rule, the concrete grammar of the transmission rate of the ADPCH of adjustment terminal is:
At first, determine to satisfy the transmission rate of the ADPCH of the proportionate relationship that is provided with the terminal quantity of present access subzone; Then, determine the sign indicating number resource allocation policy of the transmission rate correspondence of described ADPCH; At last,, be the ADPCH assigned code resource of terminal, make ADPCH have above-mentioned definite transmission rate according to above-mentioned definite sign indicating number resource allocation policy.
Corresponding to above-mentioned the third ADPCH speed regulation rule, the concrete grammar of the transmission rate of the ADPCH of adjustment terminal is:
At first, determine the number of users rate corresponding threshold value of present access subzone; Then, determine the sign indicating number resource allocation policy of described rate-valve value correspondence; At last,, be the ADPCH assigned code resource of terminal, make ADPCH have above-mentioned definite rate-valve value according to above-mentioned definite sign indicating number resource allocation policy.
After redistributing yard resource for the ADPCH of terminal, the sign indicating number resource that the network side utilization is redistributed transmits signaling, power control commands and synchronizing information etc. by ADPCH to terminal.
The sign indicating number resource transmission data of redistributing in order to make terminal already utilize, after redistributing yard resource for the ADPCH of terminal, the code resource information of redistributing is sent to terminal, terminal is according to the code resource information that receives, reset the sign indicating number resource allocation information of self, and utilize the sign indicating number resource of distributing by the ADPCH transmit ascending data.
Referring to Fig. 2, the embodiment of the invention also provides a kind of speed Adjustment System, and this system comprises:
Speed is adjusted equipment 20, is used for determining whether the terminal quantity that inserts the sub-district changes; When the terminal quantity in described sub-district changes, determine whether the transmission rate of the ADPCH of needs adjustment terminal according to the ADPCH speed regulation rule that sets in advance; When the transmission rate of the ADPCH that determine to need adjusts terminal, by for the ADPCH of described terminal redistributes the transmission rate that yard resource is adjusted the ADPCH of described terminal, and the code resource information of redistributing sent to described terminal;
Speed is adjusted equipment 20 and is further used for:
After redistributing yard resource, utilize the sign indicating number resource of redistributing to transmit signaling to described terminal at described ADPCH for the ADPCH of described terminal.
Referring to Fig. 3, the embodiment of the invention also provides a kind of speed to adjust equipment, can be applied in the speed Adjustment System, and this equipment comprises:
Terminal quantity determining unit 30 is used for determining whether the terminal quantity that inserts the sub-district changes;
Speed is adjusted decision unit 31, is used for when described terminal quantity determining unit determines that the terminal quantity of sub-district changes, and determines whether the transmission rate of the ADPCH of needs adjustment terminal according to the ADPCH speed regulation rule that sets in advance;
Channel speed adjustment unit 32 is used for when described speed is adjusted decision unit and determined the transmission rate of ADPCH of needs adjustment terminal, by redistributing the transmission rate that yard resource is adjusted the ADPCH of described terminal for the ADPCH of described terminal.
Speed is adjusted decision unit 31 and is comprised:
The first rate determining unit is used for determining the current downlink grouped data transmission rate of described terminal and is the transmission rate of the ADPCH of described terminal distribution;
The ratio judging unit is used to judge whether current downlink grouped data transmission rate of described terminal and transmission rate for the ADPCH of described terminal distribution satisfy the proportionate relationship of the transmission rate of the downlink grouped data transmission rate that sets in advance and ADPCH; Perhaps, be used to be judged as the transmission rate of ADPCH of this terminal distribution and the number of users of present access subzone and whether satisfy the transmission rate of the ADPCH that sets in advance and the proportionate relationship of community user number; Perhaps, whether the transmission rate that is used to be judged as the ADPCH of this terminal distribution satisfies the rate-valve value that sets in advance;
Decision unit is used for when described ratio judgment unit judges does not satisfy proportionate relationship or do not satisfy rate-valve value, determines to adjust the transmission rate of the ADPCH of described terminal; When described ratio judgment unit judges satisfies proportionate relationship or satisfies rate-valve value, not need to determine to adjust the transmission rate of the ADPCH of described terminal.
Channel speed adjustment unit 32 comprises:
Second rate determination unit is used for the transmission rate that downlink grouped data transmission rate definite and that described terminal is current satisfies the ADPCH of described proportionate relationship; Perhaps, be used for determining to satisfy the transmission rate of the ADPCH of the proportionate relationship that is provided with the terminal quantity of present access subzone; Perhaps, be used for determining the number of users rate corresponding threshold value of present access subzone;
The strategy determining unit is used to determine to satisfy the sign indicating number resource allocation policy of transmission rate correspondence of ADPCH of described proportionate relationship or the sign indicating number resource allocation policy of described rate-valve value correspondence;
Resource allocation unit is used for being the ADPCH assigned code resource of described terminal according to described sign indicating number resource allocation policy.
This equipment further comprises:
Resource information transmitting element 33 is used for after redistributing yard resource for the ADPCH of described terminal the code resource information of redistributing being sent to described terminal.
This equipment further comprises:
It specifically can be network elements such as base station, radio network controller that speed is adjusted equipment.
The present invention will be described below in conjunction with instantiation, and this example idiographic flow is as follows:
Step S1: terminal sends the request of access to network side, and the base station of sub-district, terminal place is this terminal distribution ADPCH, and the transmission rate of the ADPCH of distribution is 32kbps;
Step S2: timer expiry, base station are determined the terminal quantity of present access subzone, the terminal quantity of the access sub-district that the terminal quantity by relatively determining present access subzone writes down during less than last timer expiry;
Step S3: the downlink grouped data transmission rate of determining the active user is A, according to the predetermined ADPCH transmission rate and the proportional relationship X=a of user's downlink grouped data transmission rate
*Y, wherein X is the transmission rate of ADPCH, and Y is user's downlink grouped data transmission rate, and a is a proportionality coefficient, judge that the transmission rate A of current ADPCH and the transmission rate 32kbps of ADPCH do not satisfy described proportional relationship, and speed A does not surpass the signatory speed of user;
Step S4: improve the transmission rate of ADPCH, make the transmission rate of ADPCH equal a
*A;
Step S5: timer is overtime once more, and the terminal quantity of present access subzone is determined in the base station, the terminal quantity of the access sub-district that the terminal quantity by relatively determining present access subzone writes down during greater than last timer expiry;
Step S6: the downlink grouped data transmission rate of determining the active user is B (less than A), according to the predetermined ADPCH transmission rate and the proportional relationship X=a of user's downlink grouped data transmission rate
*Y judges active user's downlink grouped data transmission rate B and the transmission rate a of ADPCH
*A does not satisfy described proportional relationship;
Step S4: reduce the transmission rate of ADPCH, make the transmission rate of ADPCH equal a
*B.
On the Zong, beneficial effect Zai Yu of the present invention:
The scheme Zhong that the embodiment of the invention provides, when the Zhong terminal number amount of Zai access Xiao Qu changes, the ADPCH speed regulation rule that arranges according to Yu Xian determines whether that Xu Yao adjusts the transfer rate of the ADPCH of Zhong end, and Zai adjusts the transfer rate of the ADPCH of this Zhong end when determining that Xu Yao adjusts the transfer rate of ADPCH of Zhong end by the ADPCH Chong Xin assigned code Zi Yuan Wei the Zhong end. Realized dynamically adjusting according to the community user number purpose of the transfer rate of ADPCH.
Zhong of the present invention, dynamically adjust the transfer rate of ADPCH, make the downlink grouped data transfer rate at handy family can not be subjected to the Bottleneck Restrictions of ADPCH transfer rate, allow the Yong family obtain higher downstream rate, can obtain higher throughput of system and Radio Resource utilization ratio simultaneously.
Xian is right, and those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention. Zhe Yang, if Zhe Xie Xiu of the present invention changes the range that belongs to claim of the present invention and equivalent technologies thereof with modification, Ze also Yi of the present invention figure comprises in Zhe Xie change and the modification Zai.
Claims (8)
1. a rate adjusting method of following Dedicated Physical Control Channel ADPCH is characterized in that, this method comprises:
Determine whether the terminal quantity that inserts the sub-district changes;
Terminal quantity when described sub-district changes, and determines the current downlink grouped data transmission rate of described terminal and is the transmission rate of the ADPCH of described terminal distribution; Judge whether current downlink grouped data transmission rate of described terminal and transmission rate for the ADPCH of described terminal distribution satisfy the proportionate relationship of the transmission rate of the downlink grouped data transmission rate that sets in advance and ADPCH; If do not satisfy, then determine to adjust the transmission rate of the ADPCH of described terminal; Otherwise, not need to determine to adjust the transmission rate of the ADPCH of described terminal;
When the transmission rate of the ADPCH that determine to need adjusts terminal, determine to satisfy the transmission rate of the ADPCH of described proportionate relationship with the current downlink grouped data transmission rate of described terminal; Determine the sign indicating number resource allocation policy of the transmission rate correspondence of described ADPCH; According to described sign indicating number resource allocation policy, for the ADPCH of described terminal redistributes a yard resource, with the transmission rate of the ADPCH that adjusts described terminal; The current downlink grouped data transmission rate of described terminal refers to the speed of high speed downlink shared channel HS-DSCH to this terminal transmission downlink data.
2. the method for claim 1 is characterized in that, after redistributing yard resource for the ADPCH of described terminal, this method further comprises:
The code resource information of redistributing is sent to described terminal;
Described terminal is reset the sign indicating number resource allocation information of self, and is utilized the sign indicating number resource transmission upstream data that distributes according to the code resource information that receives.
3. the method for claim 1 is characterized in that, after redistributing yard resource for the ADPCH of described terminal, this method further comprises:
The sign indicating number resource that utilization is redistributed transmits signaling at described ADPCH to described terminal.
4. a speed is adjusted equipment, it is characterized in that this equipment comprises:
The terminal quantity determining unit is used for determining whether the terminal quantity that inserts the sub-district changes;
Speed is adjusted decision unit, comprises first rate determining unit, ratio judging unit and decision unit; Described first rate determining unit is used for determining the current downlink grouped data transmission rate of described terminal and is the transmission rate of the ADPCH of described terminal distribution; Described ratio judging unit is used to judge whether current downlink grouped data transmission rate of described terminal and transmission rate for the ADPCH of described terminal distribution satisfy the proportionate relationship of the transmission rate of the downlink grouped data transmission rate that sets in advance and ADPCH; Described decision unit is used for when described ratio judgment unit judges does not satisfy proportionate relationship, determines to adjust the transmission rate of the ADPCH of described terminal; When described ratio judgment unit judges satisfies proportionate relationship, not need to determine to adjust the transmission rate of the ADPCH of described terminal; The current downlink grouped data transmission rate of described terminal refers to the speed of HS-DSCH to this terminal transmission downlink data;
The channel speed adjustment unit comprises second rate determination unit, tactful determining unit and resource allocation unit; Described second rate determination unit is used for when determining that needs are adjusted the transmission rate of ADPCH of terminal, determines and downlink grouped data transmission rate that described terminal is current satisfies the transmission rate of the ADPCH of described proportionate relationship; Described tactful determining unit is used for determining the sign indicating number resource allocation policy of the transmission rate correspondence of described ADPCH; Described resource allocation unit is used for according to described sign indicating number resource allocation policy, for the ADPCH of described terminal redistributes a yard resource, with the transmission rate of the ADPCH that adjusts described terminal.
5. the equipment described in claim 4 is characterized in that, this equipment further comprises:
The resource information transmitting element is used for after redistributing yard resource for the ADPCH of described terminal the code resource information of redistributing being sent to described terminal.
6. the equipment described in claim 4 is characterized in that, this equipment further comprises:
The signaling transmission unit is used for after redistributing yard resource for the ADPCH of described terminal, utilizes the sign indicating number resource of redistributing to transmit signaling at described ADPCH to described terminal.
7. the speed Adjustment System of an ADPCH is characterized in that, this system comprises:
Speed is adjusted equipment, is used for determining whether the terminal quantity that inserts the sub-district changes; Terminal quantity when described sub-district changes, and determines the current downlink grouped data transmission rate of described terminal and is the transmission rate of the ADPCH of described terminal distribution; Judge whether current downlink grouped data transmission rate of described terminal and transmission rate for the ADPCH of described terminal distribution satisfy the proportionate relationship of the transmission rate of the downlink grouped data transmission rate that sets in advance and ADPCH; If do not satisfy, then determine to adjust the transmission rate of the ADPCH of described terminal; Otherwise, not need to determine to adjust the transmission rate of the ADPCH of described terminal; When the transmission rate of the ADPCH that determine to need adjusts terminal, determine to satisfy the transmission rate of the ADPCH of described proportionate relationship with the current downlink grouped data transmission rate of described terminal; Determine the sign indicating number resource allocation policy of the transmission rate correspondence of described ADPCH; According to described sign indicating number resource allocation policy,,, and the code resource information of redistributing sent to described terminal with the transmission rate of the ADPCH that adjusts described terminal for the ADPCH of described terminal redistributes a yard resource; The current downlink grouped data transmission rate of described terminal refers to the speed of high speed downlink shared channel HS-DSCH to this terminal transmission downlink data;
Terminal is used for according to the described code resource information that receives, and resets the sign indicating number resource allocation information of self, and utilizes the sign indicating number resource transmission upstream data that distributes.
8. system as claimed in claim 7 is characterized in that, described speed adjustment equipment is further used for:
After redistributing yard resource, utilize the sign indicating number resource of redistributing to transmit signaling to described terminal at described ADPCH for the ADPCH of described terminal.
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