CN101370285B - Transmission method, system and base station for high speed descending grouping access data - Google Patents
Transmission method, system and base station for high speed descending grouping access data Download PDFInfo
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- CN101370285B CN101370285B CN2008100426263A CN200810042626A CN101370285B CN 101370285 B CN101370285 B CN 101370285B CN 2008100426263 A CN2008100426263 A CN 2008100426263A CN 200810042626 A CN200810042626 A CN 200810042626A CN 101370285 B CN101370285 B CN 101370285B
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Abstract
The embodiment of the invention discloses a data transmission method, system and base station of the high speed downward grouping access. The technical solution of the embodiment of the invention activates the HS-SCCH less operation, when the base station judges to use the HS-SCCH less operation or non HS-SCCH less operation, the base station firstly judges whether the to-be transmitted data quantity is sufficient; if the data quantity is sufficient, the base station decides whether to select the HS-SCCH less operation according to the TBS size according to the HS-SCCH less operation or non HS-SCCH less operation, so that the base station obtains larger cargo-handling capacity; if the to-be transmitted data quantity is not sufficient, the TBS size of the HS-SCCH less operation and the non HS-SCCH less operation are compared under the same resource condition to device whether to decide to select the HS-SCCH less operation, so that the base station obtains greater resource using efficiency.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of transmission method, system and base station of high speed descending grouping access data.
Background technology
Third generation partner program (3rd Generation Partnership Project, introduced high speed downlink packet access (High Speed Downlink PacketAccess in version 5 (R5) 3GPP) and the version 6 (R6), HSDPA) and high speed uplink packet insert (High Speed Uplink Packet Access, HSUPA), be referred to as high-speed packet and insert (High Speed PacketAccess, HSPA) technology.Wherein, HSDPA has characteristics at a high speed, and flank speed can reach about 14Mbps, has therefore obtained promotion and application very soon.
Adopt among the HSDPA adaptive modulation and coding (Adaptive Modulation and Coding, AMC), (Hybrid Automatic Repeat Request, HARQ) etc. enhancement techniques improves descending throughput to the mixed self-adapting repeat requests.The modulation system of HSDPA adopts quaternary PSK (Quaternary Phase Shift Keying, QPSK) and 16 quadrature amplitude modulation (16QuadratureAmplitude Modulation, 16QAM), and use more flexibly that rate-matched mechanism realizes multiple code rate.AMC has realized the adaptation function of link in physical layer: descending transmit mechanism (comprising modulation system, code rate or the like) will (Transmission Timing Interval TTI) carries out real-time change at each transmission time interval according to the condition of Radio Link.And another principal character HARQ and corresponding HSDPA scheduling feature then are that (Media AccessControl MAC) finishes at media access control layer.The re-transmission of HSPDA, scheduling are all finished by the base station.
At present, Wideband CDMA Technology (Wideband Code Division Multiple Access, W-CDMA) and synchronous Wideband CDMA Technology (Time Division-Synchronous CodeDivision Multiple Access of time-division, TD-SCDMA) all support the HSDPA technology, illustrate with W-CDMA below, W-CDMA is as shown in table 1 for the channel of supporting the HSDPA technology to increase newly.
HSDPA (the being called for short W-HSDPA) channel that is applied in the W-CDMA system comprises high speed descending sharing channel (High Speed-Downlink Shared Channel, HS-DSCH) and corresponding downlink high-speed shared control channel (High Speed-Shared Control Channel for HS-DSCH, HS-SCCH) and High-Speed Dedicated Physical Control Channel (High Speed-Dedicated Physical ControlChannel for HS-DSCH, HS-DPCCH).Wherein HS-DSCH is the transmission channel that increases newly, is used to carry high-speed down data, be mapped to high-speed physical downlink shared channel (HS-PDSCH) (High Speed-PhysicalDownlink Shared Channel, HS-PDSCH) on.
Table 1
Base station (Base Station, BS) give subscriber equipment (User Equipment, UE) need send a little channel associated signallings by the HS-SCCH channel earlier during descending transmission HSDPA data, this signaling can comprise the channel code number that the spreading factor of HS-PDSCH use equals 16, debud mode or the like, so that terminal to the demodulate reception of HS-PDSCH data channel, behind 2 time slots (Slot) (TTI of 2ms comprises 3 slot), sends and carries the HS-PDSCH channel of data.In the TTI for each HS-DSCH, HS-SCCH is mainly used in the signaling information of carries downlink, and these signaling informations comprise:
Customer equipment identification (UE ID):, therefore need in signaling, have a sign to determine unique recipient because a HS-SCCH may be monitored by a plurality of UE simultaneously.
(Transport Format Resource Information, TFRI): TFRI comprises the transformat of HS-PDSCH channel, comprises that UE uses which resource and the load mode of data on these resources for transformat and resource information.Can comprise channel code, time slot, modulation system and transport block size etc. particularly.After obtaining these information, UE can correctly decode to data.
HARQ: whether indication UE current data block is the re-transmission of the data block of transmission in the past.
HS-DPCCH is a uplink physical channel, is mainly used in to carry the signaling information relevant with HS-DSCH.These signaling informations comprise HARQ confirm/deny to reply (Acknowledge, ACK/NotAcknowledge, NACK), the indication of the channel quality of down link (Channel Quality Indicator, CQI).
The W-HSDPA process is briefly described as follows: the base station at first by the corresponding HS-DSCH information of HS-SCCH notice UE, comprises customer equipment identification, HS-PDSCH channel code resource, modulation system etc.Be separated by then behind the preset time, on HS-PDSCH, send data.UE then monitors HS-SCCH, by the identification customer equipment identification, judges that whether this time information is to oneself.If then the information of carrying according to HS-SCCH receives and demodulation shared channel HS-PDSCH, obtains data.According to the situation of measurement result and Data Receiving, at the HS-DPCCH channel, whether the feedback data piece correctly receives and channel quality information then.The base station is according to feedback, can determine data retransmission whether and modulation and coded system that can adaptive adjustment shared channel.
In 3GPP version 7 (R7) agreement, introduced and need not High-Speed Shared Control Channel and follow transmission (HS-SCCH less operation), be that the base station can not send the HS-SCCH that follows to subscriber equipment transmission HSDPA data, only send HS-PDSCH, thereby save the power resource of sub-district.Need follow transmission HS-SCCH to be called non-HS-SCCH less operation when sending HS-PDSCH.But in research and practice process to this scheme, the inventor finds also not have at present the corresponding techniques scheme to go judgement to be to use HS-SCCH less operation also to be to use non-HS-SCCH less operation.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method, system and base station of transmitting data, when base station down is transferred to subscriber equipment, judge to be to use HS-SCCH less operation also to be to use non-HS-SCCH less operation, thereby can obtain bigger throughput and bigger resource utilization.
For achieving the above object, the embodiment of the invention provides following technical scheme:
The data transmission method that a kind of high speed downlink packet inserts comprises:
Calculating need not the maximum transmission data block size TBS that High-Speed Shared Control Channel follows transmisson of HS-SCCH less operation to transmit
Max-lessAnd the non-HS-SCCH less operation maximum transmission data block size TBS that can transmit
Max-nonless
Judge whether the outgoing data amount is less than or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller among both is if the result, then uses HS-SCCH less operation transmission data for being; If the result then uses non-HS-SCCH less operation transmission data for not.
The data transmission system that a kind of high speed downlink packet inserts comprises:
The base station is used to calculate and need not the maximum transmission data block size TBS that High-Speed Shared Control Channel follows transmisson of HS-SCCH less operation to transmit
Max-lessAnd the non-HS-SCCH less operation maximum transmission data block size TBS that can transmit
Max-nonlessJudge whether the outgoing data amount is less than or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller among both;
Subscriber equipment is used for the data that report channel quality indication that indicates current channel quality and the high speed downlink packet that receives the base station transmission to insert to the base station.
A kind of base station comprises:
First computing unit is used to calculate and need not the maximum transmission data block size TBS that High-Speed Shared Control Channel follows transmisson of HS-SCCH lessoperation to transmit
Max-lessAnd the non-HS-SCCH lessoperation maximum transmission data block size TBS that can transmit
Max-nonless, and result of calculation sent to first judging unit;
First judging unit is used to judge that whether the outgoing data amount is smaller or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller among both, and judged result sent to transmitting element;
Transmitting element is used for the judged result according to first judging unit, uses HS-SCCH lessoperation or non-HS-SCCH less operation to send the data to subscriber equipment.
As seen, the technical scheme that the embodiment of the invention provides, activate under the condition of HS-SCCH less operation, the base station is judged when being to use HS-SCCH less operation also to be to use non-HS-SCCH less operation, is judged at first whether the outgoing data amount is sufficient.If sufficient, the transport block size that can transmit according to HS-SCCH less operation and non-HS-SCCH less operation determines whether selecting HS-SCCH less operation, thereby can obtain bigger throughput; If the outgoing data amount is inadequate, relatively use under the same asset condition, the TBS that HS-SCCH less operation and non-HS-SCCH less operation can send determines whether to select HS-SCCH less operation with this, thereby can obtain bigger resource utilization.
Description of drawings
The transmission method flow chart of a kind of high speed descending grouping access data that Fig. 1 provides for the embodiment of the invention;
A kind of system configuration schematic diagram that Fig. 2 provides for the embodiment of the invention;
A kind of architecture of base station schematic diagram that Fig. 3 provides for the embodiment of the invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, with reference to the accompanying drawings and to be example with the W-CDMA system be described in further detail the method for the embodiment of the invention.
See also shown in Figure 1ly, the transmission method flow chart of a kind of high speed descending grouping access data that Fig. 1 provides for the embodiment of the invention comprises step:
Step 101: judge whether subscriber equipment meets the necessary condition of using HS-SCCH less operation, if then enter step 102; If not, then enter step 109;
In the above-mentioned steps 101, described necessary condition can comprise: the sign indicating number resource that subscriber equipment uses is not used by other subscriber equipmenies, and perhaps subscriber equipment is not configured to multiple-input and multiple-output (Multiple-InputMultiple-Out-put, MIMO) pattern etc.Certainly can also not repeat them here according to increasing other condition without application scenarios.
Step 102:, calculate the maximum transmission data block size TBS that HS-SCCH less operation can transmit based on current resource
Max-less, and the non-HS-SCCH less operation maximum transmission data block size TBS that can transmit
Max-nonless
Need to prove, code channel number that the TBS of the descending transmission of HSDPA and the classification of UE, the timeslot number that takies, each time slot can be used etc. is relevant, HSDPA entity in the base station comprises transmission format resource combination (Transport Format Resource Combination, TRFC) entity, when BS sends data to UE, the TRFC entity according to the classification of UE, the timeslot number that takies, each time slot can with calculating such as code channel number send these data the employed power of TBS how much and use which channel code to send.
The TRFC entity of base station is according to power resource and the channel code resource of current free time, determine each 2msTTI subscriber equipment to obtain the priority of resource, the TFRC entity sends great TBS for this subscriber equipment according to this order computation, use how much power and channel code, can set up a CQI～TBS according to the relation between this three and expand form, can directly in form, search.
In the embodiment of the invention, subscriber equipment is measured Common Pilot Channel (Common PilotChannel at every turn, CPICH) quality, and report CQI to give the base station among an available HS-DPCCH subsequently in HS-DSCH transmission, described CQI is used for representing the channel quality quality between subscriber equipment and the base station, the CQI value is big more, and the expression channel quality is good more.
Illustrate, the CQI span of supposing user equipment to report is 1～30, if reporting of user CQI is 20, suppose that the corresponding available horsepower of CQI=20 is 40.5 dBms (dBm), but during base station scheduling, if current available horsepower is 38.5dBm, the CQI=18 that supports of the multipotency of the current available horsepower in sub-district then.Suppose that available horsepower is 40.5dBm, during base station scheduling, if current available horsepower is 42.5dBm, the CQI=22 that supports of the multipotency of the current available horsepower in sub-district then.Have certain difference between the available horsepower of the CQI correspondence that reports usually and the actual available horsepower, it is exactly the CQI that the multipotency of current available horsepower is supported that the CQI that reports adds or deduct this difference.Certainly this difference is not very big usually, the general span that can not surpass the CQI of user equipment to report.
Be exactly in addition, if active user's data deficiencies only needs CQI=15 just can all send user's data, then the CQI of actual selection is exactly 15, and actual transmitting power is 35.5dBm.
According to the CQI value,, table look-up and just can obtain the maximum transmission data block size TBS that corresponding current resource can send again in conjunction with current channel code resource
MaxIn view of the above, can calculate HS-SCCH lessoperation respectively and non-HS-SCCH less operation can transmit the maximum transmission data block size.
Step 103: judge that whether outgoing data amount BufDataVolum is smaller or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller value among both is if then enter step 104; If not, then enter step 107;
TFRC judges whether smaller or equal to TBS according to the outgoing data amount BufDataVolum of this transmission HS-DSCH data
Max-lessAnd TBS
Max-nonlessSmaller value among both.
Step 104: in the TBS that presets, search minimum TBS greater than BufDataVolum
Less, according to TBS
LessCorresponding CQI calculates HS-SCCH less operation transmission power demand;
Usually, BS can define the operable TBS of several HS-SCCH less operation to UE in advance.In embodiments of the present invention, stipulate according to agreement, BS is to four operable TBS of HS-SCCH lessoperation of UE definition, each TBS uses one or two HS-PDSCH, and the power that each TBS uses is inequality, the TBS that sends is big more, and employed power and channel yardage are just many more.The transport block size TBS greater than the minimum of outgoing data amount BufDataVolum is searched in the base station in predefined four operable TBS of HS-SCCH less operation
Less
Step 105: use with HS-SCCH less operation and transmit under the same asset condition, calculate the transport block size TBS that non-HS-SCCH less operation can transmit
Nonless
Step 106: judge TBS
LessWhether greater than TBS
Nonless, be, then enter step 108, not, then enter step 109;
Step 107: judge TBS
Max-lessWhether more than or equal to TBS
Max-nonless, be to enter step 108; , then do not enter step 109;
Step 108: use HS-SCCH less operation transmission data;
Be that the base station does not send the HS-SCCH that follows to subscriber equipment transmission HSDPA data, only send HS-PDSCH, subscriber equipment needs travel through detection to predefined four kinds of transformats, and identifying is any on earth.
Step 109: use non-HS-SCCH less operation transmission data.
Be that the base station sends HS-SCCH and the transmission HS-PDSCH that the transmission of HSDPA data is followed to subscriber equipment.
The technical scheme that the embodiment of the invention provides activates under the HS-SCCH less operation condition, and the base station is judged when being to use HS-SCCH less operation also to be to use non-HS-SCCH less operation, judged at first whether the outgoing data amount is sufficient.If sufficient, the TBS size that can transmit according to HS-SCCH less operation and non-HS-SCCH less operation determines whether selecting HS-SCCH lessoperation, thereby can obtain bigger throughput; When if the outgoing data amount is inadequate, relatively use under the same asset condition, the TBS size that HS-SCCH less operation and non-HS-SCCH less operation can send, determine whether to select HS-SCCH less operation with this, thereby can obtain bigger resource utilization.
Based on said method, the embodiment of the invention discloses a kind of system.
See also shown in Figure 2ly, Fig. 2 is the structural representation of a kind of system that the embodiment of the invention discloses, and described system comprises:
Further, the maximum transmission data block size TBS that does not need High-Speed Shared Control Channel to follow transmisson of HS-SCCH less operation to transmit is being calculated in base station described in the embodiment of the invention 201
Max-lessAnd the non-HS-SCCH less operation maximum transmission data block size TBS that can transmit
Max-nonlessAlso comprise before:
Judge whether subscriber equipment 202 meets the necessary condition of HS-SCCH less operation, if the result then uses non-HS-SCCH less operation transmission data for not.
Described base station 201 is used to judge that whether the outgoing data amount is smaller or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller among both comprises:
If described outgoing data amount is greater than TBS
Max-lessAnd TBS
Max-nonlessSmaller among both then judges and works as TBS
Max-lessLess than TBS
Max-nonlessThe time use non-HS-SCCH less operation transmission data.
If described outgoing data amount is less than or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller among both then searches the transport block size TBS greater than the minimum of outgoing data amount in the TBS that presets
Less
The transport block size TBS greater than the minimum of outgoing data amount is searched in described base station 201 in the TBS that presets
LessBe embodied as:
In predefined four kinds of TBS that can transmit, search transport block size TBS greater than the minimum of outgoing data amount
Less
According to TBS
LessWhether the through-put power efficient of judging HS-SCCH less operation is greater than the through-put power efficient of non-HS-SCCH less operation.
Further, base station described in the embodiment of the invention 201 is according to TBS
LessWhether the through-put power efficient of judging HS-SCCH lessoperation comprises greater than the through-put power efficient of non-HS-SCCH less operation:
CQI according to correspondence calculates HS-SCCH less operation transmission desired power; Use power and the code source identical, calculate the transport block size TBS that non-HS-SCCH lessoperation can transmit with HS-SCCH less operation
NonlessJudge TBS
LessWhether greater than TBS
NonlessIf the result then uses HS-SCCH less operation transmission data for being; If the result then uses non-HS-SCCH less operation transmission data for not.
The technical scheme that the embodiment of the invention provides, base station activation HS-SCCH less operation judges when being to use HS-SCCH less operation also to be to use non-HS-SCCH less operation, judges at first whether the outgoing data amount is sufficient.If sufficient, the TBS that can transmit according to HS-SCCH less operation and non-HS-SCCHless operation determines whether selecting HS-SCCH less operation, thereby can obtain bigger throughput; If the outgoing data amount is inadequate, relatively use under the same asset condition, the TBS that HS-SCCH less operation and non-HS-SCCH less operation can send determines whether to select HS-SCCH less operation with this, thereby can obtain bigger resource utilization.
Based on said method, the embodiment of the invention discloses a kind of base station.
See also shown in Figure 3ly, Fig. 3 is a kind of architecture of base station schematic diagram that the embodiment of the invention provides, and comprising:
First judging unit 302 is used to judge that whether the outgoing data amount is smaller or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller among both, and judged result sent to transmitting element 303;
Transmitting element 303 is used for the judged result according to first judging unit 302, uses HS-SCCH lessoperation or non-HS-SCCH less operation to send the data to subscriber equipment.
Further, base station described in the embodiment of the invention also comprises:
Further, the base station described in the embodiment of the invention also comprises:
Need to prove that the transport block size TBS greater than the minimum of outgoing data amount is searched in the described unit 305 of searching in the TBS that presets
LessBe embodied as:
In predefined four kinds of TBS that can transmit, search transport block size TBS greater than the minimum of outgoing data amount
Less
The 3rd judging unit 306, be used for when the judged result of first judging unit 302 for not the time, judge TBS
Max-lessWhether more than or equal to TBS
Max-nonless, and judged result sent to transmitting element 303.
Further, the base station described in the embodiment of the invention also comprises:
The 4th judging unit 307 is used for according to searching the TBS that the unit is searched
LessWhether the through-put power efficient of judging HS-SCCH lessoperation greater than the through-put power efficient of non-HS-SCCH less operation, and judged result is sent to transmitting element 303.
Further, the base station described in the embodiment of the invention also comprises:
Described the 4th judging unit 307 is used for judging TBS according to the result of calculation of second computing unit 308
LessWhether greater than TBS
Nonless, and judged result sent to transmitting element 303.
The technical scheme that the embodiment of the invention provides, base station activation HS-SCCH less operation judges when being to use HS-SCCH less operation also to be to use non-HS-SCCH less operation, judges at first whether the outgoing data amount is sufficient.If sufficient, the TBS that can transmit according to HS-SCCH less operation and non-HS-SCCH lessoperation determines whether selecting HS-SCCH less operaion, thereby can obtain bigger throughput; If the outgoing data amount is inadequate, relatively use under the same asset condition, the TBS that HS-SCCHless operation and non-HS-SCCH less operation can send determines whether to select HS-SCCH less operation with this, thereby can obtain bigger resource utilization.
The foregoing description is that example has been described in detail the embodiment of the invention with the W-CDMA system just; the technical scheme that certain the invention process provides can also be applied in other system that uses the HSDPA technology; such as the TD-CDMA system; same within the technical scheme protection range that the embodiment of the invention provides, do not repeat them here.
In sum, the technical scheme that the embodiment of the invention provides, activate under the HS-SCCH less operation condition, the base station is judged when being to use HS-SCCH less operation also to be to use non-HS-SCCH lessoperation, is judged at first whether the outgoing data amount is sufficient.If sufficient, the TBS that can transmit according to HS-SCCH lessoperation and non-HS-SCCH less operation determines whether selecting HS-SCCH less operation, thereby can obtain bigger throughput; When if the outgoing data amount is inadequate, relatively use under the same asset condition, the TBS that HS-SCCH less operaion and non-HS-SCCH less operation can send determines whether to select HS-SCCH less operation with this, thereby can obtain bigger resource utilization.
Contents such as information interaction, implementation between each unit in said system and the device and since with the inventive method embodiment based on same design, particular content can repeat no more referring to the narration among the inventive method embodiment herein.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement, but the former is better execution mode under a lot of situation by hardware.Based on such understanding, all or part of can the embodying that technical scheme of the present invention contributes to background technology with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
The embodiment of the invention has been used specific embodiment the principle and the execution mode of the embodiment of the invention has been set forth, and the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the thought of the embodiment of the invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the embodiment of the invention.
Claims (7)
1. the data transmission method that high speed downlink packet inserts is characterized in that, comprising:
Calculating need not the maximum transmission data block size TBS that High-Speed Shared Control Channel follows transmisson of HS-SCCH less operation to transmit
Max-lessAnd the non-HS-SCCH less operation maximum transmission data block size TBS that can transmit
Max-nonless
Judge whether the outgoing data amount is less than or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller among both is if the result is for being then to search the transport block size TBS greater than the minimum of outgoing data amount in the TBS that presets
Less, and according to TBS
LessWhether the through-put power efficient of judging HS-SCCH less operation greater than the through-put power efficient of non-HS-SCCH less operation, if greater than, then use HS-SCCH less operation transmission data; If described outgoing data amount is greater than TBS
Max-lessAnd TBS
Max-nonlessSmaller among both then works as TBS
Max-lessLess than TBS
Max-nonlessThe time use non-HS-SCCH less operation transmission data.
2. method according to claim 1 is characterized in that, described calculating need not the maximum transmission data block size TBS that High-Speed Shared Control Channel follows transmisson of HS-SCCH less operation to transmit
Max-lessAnd the non-HS-SCCH less operation maximum transmission data block size TBS that can transmit
Max-nonlessBefore, also comprise:
Judge whether subscriber equipment meets the necessary condition of HS-SCCH less operation, if the result then uses non-HS-SCCH less operation transmission data for not, if the result is for being then to carry out described calculation procedure.
3. method according to claim 1 is characterized in that, and is described according to TBS
LessWhether the through-put power efficient of judging HS-SCCH less operation comprises greater than the through-put power efficient of non-HS-SCCH less operation:
Calculate HS-SCCH less operation transmission desired power according to corresponding channel quality index CQI;
Use the power and the channel code resource of described HS-SCCH less operation transmission, if calculate the transport block size TBS that adopts non-HS-SCCH less operation transmission to transmit
Nonless
Judge TBS
LessWhether greater than TBS
NonlessIf the result is for being, then determine the through-put power efficient of the through-put power efficient of HS-SCCH lessoperation greater than non-HS-SCCH less operation, if the result determines then that for not the through-put power efficient of HS-SCCH less operation is less than or equal to the through-put power efficient of non-HS-SCCH less operation.
4. the data transmission system that high speed downlink packet inserts is characterized in that, comprises subscriber equipment and base station:
Described subscriber equipment is used for the data that report channel quality indication that indicates current channel quality and the high speed downlink packet that receives the base station transmission to insert to the base station;
Described base station comprises:
First computing unit is used to calculate and need not the maximum transmission data block size TBS that High-Speed Shared Control Channel follows transmisson of HS-SCCH lessoperation to transmit
Max-lessAnd the non-HS-SCCH lessoperation maximum transmission data block size TBS that can transmit
Max-nonless, and result of calculation sent to first judging unit;
First judging unit is used to judge that whether the outgoing data amount is smaller or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller among both;
The 3rd judging unit, be used for when the judged result of first judging unit for not the time, judge TBS
Max-lessWhether more than or equal to TBS
Max-nonless, and judged result sent to transmitting element;
Search the unit, be used for when the judged result of first judging unit when being, in the TBS that presets, search transport block size TBS greater than the minimum of outgoing data amount
Less
The 4th judging unit is used for according to searching the TBS that the unit is searched
LessWhether the through-put power efficient of judging HS-SCCH lessoperation greater than the through-put power efficient of non-HS-SCCH less operation, and judged result is sent to transmitting element;
Transmitting element is used in the judged result of the 4th judging unit using HS-SCCH lessoperation to send the data to subscriber equipment when being; Or in the judged result of the 3rd judging unit for not the time, use non-HS-SCCH less operation to send the data to subscriber equipment.
5. a base station is characterized in that, comprising:
First computing unit is used to calculate and need not the maximum transmission data block size TBS that High-Speed Shared Control Channel follows transmisson of HS-SCCH lessoperation to transmit
Max-lessAnd the non-HS-SCCH lessoperation maximum transmission data block size TBS that can transmit
Max-nonless, and result of calculation sent to first judging unit;
First judging unit is used to judge that whether the outgoing data amount is smaller or equal to TBS
Max-lessAnd TBS
Max-nonlessSmaller among both;
The 3rd judging unit, be used for when the judged result of first judging unit for not the time, judge TBS
Max-lessWhether more than or equal to TBS
Max-nonless, and judged result sent to transmitting element;
Search the unit, be used for when the judged result of first judging unit when being, in the TBS that presets, search transport block size TBS greater than the minimum of outgoing data amount
Less
The 4th judging unit is used for according to searching the TBS that the unit is searched
LessWhether the through-put power efficient of judging HS-SCCH lessoperation greater than the through-put power efficient of non-HS-SCCH less operation, and judged result is sent to transmitting element; Transmitting element is used in the judged result of the 4th judging unit using HS-SCCH less operation to send the data to subscriber equipment when being; Or in the judged result of the 3rd judging unit for not the time, use non-HS-SCCH less operation to send the data to subscriber equipment.
6. base station according to claim 5 is characterized in that, also comprises:
Second judging unit is used to judge whether subscriber equipment meets the necessary condition of HS-SCCH less operation, and judged result is sent to first computing unit and transmitting element.
7. base station according to claim 5 is characterized in that, also comprises:
Second computing unit is used for according to searching the TBS that the unit is searched
LessCorresponding channel quality index CQI calculates HS-SCCH less operation transmission desired power, and be used to use power and the channel code resource identical with HS-SCCH less operation, if calculate the transport block size TBS that adopts non-HS-SCCHless operation transmission to transmit
Nonless, and result of calculation sent to the 4th judging unit;
Described the 4th judging unit is used for judging TBS according to the result of calculation of second computing unit
LessWhether greater than TBS
Nonless, and judged result sent to transmitting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100426263A CN101370285B (en) | 2008-09-05 | 2008-09-05 | Transmission method, system and base station for high speed descending grouping access data |
Applications Claiming Priority (1)
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| CN102014508B (en) * | 2009-09-04 | 2013-08-07 | 中兴通讯股份有限公司 | Method for reactivation of semi-static scheduling, and base station thereof |
| CN102056269B (en) * | 2009-11-02 | 2014-04-02 | 华为技术有限公司 | Function controlling and processing method, device and system |
| CN101754274B (en) * | 2009-12-29 | 2012-07-04 | 华为技术有限公司 | Data retransmission method and equipment |
| CN102083002B (en) * | 2010-03-24 | 2014-04-02 | 电信科学技术研究院 | System, method and device for controlling reported broadcast channel information |
| CN101984707B (en) * | 2010-11-12 | 2014-08-13 | 中兴通讯股份有限公司 | Method and device for adjusting throughput of high speed downlink packet access (HSDPA) terminal |
| CN103379598A (en) * | 2012-04-16 | 2013-10-30 | 马维尔国际有限公司 | Data transmission method and equipment |
| US9131498B2 (en) * | 2012-09-12 | 2015-09-08 | Futurewei Technologies, Inc. | System and method for adaptive transmission time interval (TTI) structure |
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