CN101594672A - The method of method, system, device and transmission data that a kind of maintaining uplink is synchronous - Google Patents
The method of method, system, device and transmission data that a kind of maintaining uplink is synchronous Download PDFInfo
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- CN101594672A CN101594672A CNA2008101140193A CN200810114019A CN101594672A CN 101594672 A CN101594672 A CN 101594672A CN A2008101140193 A CNA2008101140193 A CN A2008101140193A CN 200810114019 A CN200810114019 A CN 200810114019A CN 101594672 A CN101594672 A CN 101594672A
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Abstract
The present invention relates to cordless communication network, be particularly related to the synchronous mthods, systems and devices of a kind of maintaining uplink, in order to solve strengthening under the CELL_FACH state of existing in the prior art, the base station initiatively makes subscriber equipment rebulid the problem of uplink synchronous fast after detecting the subscriber equipment uplink loss.The method of the embodiment of the invention comprises: the base station comprises the first physical layer control information that notifying user equipment is set up uplink synchronous information by first physical layer control channel to the subscriber equipment transmission; Described subscriber equipment is set up uplink synchronous with described base station after receiving the described first physical layer control information.Described subscriber equipment sends to described base station by second physical layer control channel after successfully setting up uplink synchronous with described base station, comprises the second physical layer control information of uplink synchronous confirmation.Adopt the method for the embodiment of the invention can make subscriber equipment set up uplink synchronous again fast, thereby improve the reliability of transmitting uplink data.
Description
Technical field
The present invention relates to cordless communication network, the method for method, system, device and transmission data that particularly a kind of maintaining uplink is synchronous.
Background technology
HSDPA (High Speed DownlinkPacket Access at LCR-TDD (low spreading rate time division duplex), the high speed downlink packet access) introduced up HS-DSCH (High SpeedDownlink Shared Channel in, high speed descending sharing channel), HS-PDSCH (High Speed PhysicalDownlink Shared Channel high-speed downstream Physical Shared Channel), HS-SCCH (Shared ControlChannel for HS-DSCH, the shared control channel of HS-DSCH) and up HS-SICH (SharedInformation Channel for HS-DSCH, the shared information channel of HS-DSCH).
As shown in Figure 1, the step of carrying out transfer of data by top channel comprises:
Step 101, subscriber equipment are at the appointed time put by HS-PDSCH and are received data according to the schedule information of receiving.
Step 102, subscriber equipment basis are to receiving data conditions, carry out channel quality estimation, determine CQI (the Channel Quality Indicator of HS-PDSCH, the channel quality indication), and, determine feedback information ACK (determining information) or NACK (NACK messages) according to decoded result to data.
Step 103, subscriber equipment send by HS-SICH CQI and the ACK/NACK information of determining to the base station.
Suitable transformat is determined according to feedback information and CQI in step 104, base station, and by the control information of HS-SCCH transmission subscriber equipment, subsequent step and step 100～step 103 is similar, repeats no more.
In above-mentioned steps, want to allow the base station correctly obtain the feedback information of subscriber equipment, must guarantee that base station and subscriber equipment keep synchronously.
In the existing systems, whether connect, the connection status of subscriber equipment be divided into two big classes with network according to subscriber equipment: idle (Idle) pattern be connected (Connected) pattern.Wherein connection mode is divided into CELL-DCH (cell private channel), CELL-FACH (cell forward access channel), CELL-PCH (cell paging channel), several states of URA-PCH (UTRAN Acceditation Area paging channel) according to differences such as the physical channel kind of using, measurements again.
Using the HSDPA channel to replace FACH (forward access channel) channel to send downlink data under the CELL_FACH state, and the CELL-FACH under this state is being called enhancing CELL-FACH state with the downlink data peak rate under the raising CELL_FACH state.Can be for strengthening the subscriber equipment that has special-purpose terminal identification information (H-RNTI) under the CELL-FACH state by the base station that feeds back to of HS-SICH (the shared information channel of high speed descending sharing channel) channel transmitting channel mass measurement and data decode situation, to improve resource utilization.Therefore, strengthen under the CELL_FACH state, subscriber equipment need be in the uplink synchronous state when downlink data receiving carries out up feedback.
On the other hand, in order to improve resource utilization ratio, under enhancing CELL_FACH state, also allow not lasting maintenance uplink synchronous, promptly allow subscriber equipment uplink loss when long-time free of data sends, such as: subscriber equipment is when carrying out the web page browsing business, open behind the webpage during reading webpage, may there be data to send for a long time, in the case, if continue to keep synchronously, can cause resource waste, allow the subscriber equipment uplink loss in order to improve this situation of resource utilization.When subscriber equipment has new upstream data to send out or need carry out up feedback to new downlink data, need provide the timely notifying user equipment of a kind of mechanism to set up uplink synchronous so, guarantee the reliability of transmitting uplink data.
But also do not have at present a kind ofly strengthening the CELL_FACH state in the synchronous scheme of base station side maintaining uplink.Have only at present when subscriber equipment has upstream data to send, can initiatively set up uplink synchronous (promptly when setting up uplink synchronous) by the subscriber equipment decision with the base station; And the base station can not initiatively make subscriber equipment set up uplink synchronous at present.If the base station sends data to subscriber equipment so, subscriber equipment sends up feedback at the uplink loss state, then can cause the base station to be difficult to the correct feedback information that obtains, if feedback information is not received in the base station in the time of setting, then think this bust this, retransmit, cause resource waste.
In sum, strengthening under the CELL_FACH state at present, because the base station can not initiatively make subscriber equipment set up uplink synchronous, make the base station when having downlink data and to need subscriber equipment that these data are fed back to the subscriber equipment transmission, if subscriber equipment sends feedback information at the uplink loss state, then can not guarantee the reliability of transmitting uplink data, can cause the base station to be difficult to the correct feedback information that subscriber equipment sends that obtains, thereby cause unnecessary retransmission, cause resource waste.
Summary of the invention
The synchronous mthods, systems and devices of a kind of maintaining uplink that the embodiment of the invention provides, in order to solve strengthening under the CELL_FACH state of existing in the prior art, the base station can't initiatively make subscriber equipment set up the problem of uplink synchronous behind the subscriber equipment uplink loss.
A kind of method that sends data that the embodiment of the invention provides, in order to solve strengthening under the CELL_FACH state of existing in the prior art, the base station sends data to subscriber equipment when the subscriber equipment uplink loss, be difficult to the problem of the feedback information of acquisition subscriber equipment.
The synchronous method of a kind of maintaining uplink that the embodiment of the invention provides comprises:
The base station comprises the first physical layer control information that notifying user equipment is set up uplink synchronous information by first physical layer control channel to the subscriber equipment transmission;
Described subscriber equipment is set up uplink synchronous with described base station after receiving the described first physical layer control information.
Described subscriber equipment sends to described base station by second physical layer control channel after successfully setting up uplink synchronous with described base station, comprises the second physical layer control information of uplink synchronous confirmation.
The synchronous system of a kind of maintaining uplink that the embodiment of the invention provides comprises:
The base station is used for by first physical layer control channel, sends to subscriber equipment to comprise the first physical layer control information that notifying user equipment is set up uplink synchronous information;
Subscriber equipment, be used to receive the described first physical layer control information after, set up uplink synchronous with described base station.
Described base station comprises:
Processing module is used for that notifying user equipment is set up uplink synchronous information and places the described first physical layer control information;
Sending module is used for the described first physical layer control information after handling is sent to subscriber equipment by first physical layer control channel;
Described subscriber equipment comprises:
Receiver module is used to receive the described first physical layer control information;
Set up module, be used for after described receiver module receives that comprising notifying user equipment sets up the first physical layer control information of uplink synchronous information, setting up uplink synchronous with described base station.
Described subscriber equipment also comprises:
Reply module, be used for after successfully setting up uplink synchronous, sending to described base station, comprise the second physical layer control information of uplink synchronous confirmation by second physical layer control channel with described base station;
Described base station also comprises:
The confirmation receiver module is used for by described second physical layer control channel, receives the described second physical layer control information from described subscriber equipment.
A kind of base station that the embodiment of the invention provides comprises:
Processing module is used for that notifying user equipment is set up uplink synchronous information and places the described first physical layer control information;
Sending module is used for the described first physical layer control information after handling is sent to subscriber equipment by first physical layer control channel.
Described base station also comprises:
The confirmation receiver module is used for by second physical layer control channel, receives the second physical layer control information that comprises the uplink synchronous confirmation from described subscriber equipment.
A kind of subscriber equipment that the embodiment of the invention provides comprises:
Receiver module is used for by the first physical layer control information of first physical layer control channel reception from the base station;
Set up module, be used for after described receiver module receives that comprising notifying user equipment sets up the first physical layer control information of uplink synchronous information, setting up uplink synchronous with described base station.
Described subscriber equipment also comprises:
Reply module, be used for after successfully setting up uplink synchronous, sending to described base station, comprise the second physical layer control information of uplink synchronous confirmation by second physical layer control channel with described base station.
A kind of method that sends data that the embodiment of the invention provides comprises:
The base station is when having data need send and need subscriber equipment that these data are fed back, by first physical layer control channel, to subscriber equipment send comprise notifying user equipment and set up the first physical layer control information of uplink synchronous information after, carry out data sending processing.
Described base station is carried out descending scheduling and is handled after passing through second physical layer control channel, receiving the second physical layer control information that comprises the uplink synchronous confirmation from described subscriber equipment, and sends downlink data.
The synchronous method of a kind of maintaining uplink comprises:
Subscriber equipment receives the first physical layer control information from the base station by first physical layer control channel;
Described subscriber equipment comprises notifying user equipment in the described first physical layer control information and sets up uplink synchronous information, sets up uplink synchronous with described base station.
Embodiment of the invention base station comprises the first physical layer control information that notifying user equipment is set up uplink synchronous information by first physical layer control channel to the subscriber equipment transmission; After described subscriber equipment is received the described first physical layer control information, set up uplink synchronous with described base station, because the base station can strengthen under the CELL_FACH state, initiatively make subscriber equipment set up uplink synchronous, realized behind the subscriber equipment uplink loss, the mechanism that the base station has downlink data to wait to send out and subscriber equipment is set up uplink synchronous fast when needing up feedback has improved the reliability and the user experience of transmitting uplink data, has saved system resource thereby reduced unnecessary retransmission.
Description of drawings
Fig. 1 is for carrying out the method flow schematic diagram of transfer of data in HSDPA;
Fig. 2 is the synchronous system configuration schematic diagram of embodiment of the invention maintaining uplink;
Fig. 3 is the structural representation of embodiment of the invention base station;
Fig. 4 is the structural representation of embodiment of the invention subscriber equipment;
Fig. 5 is the synchronous method flow schematic diagram of embodiment of the invention maintaining uplink;
Fig. 6 adopts the synchronous method flow schematic diagram of E-AGCH control information maintaining uplink for the embodiment of the invention;
Fig. 7 adopts the synchronous method flow schematic diagram of HS-SCCH control information maintaining uplink for the embodiment of the invention;
Fig. 8 sends the method flow schematic diagram of data for the embodiment of the invention;
Fig. 9 is the synchronous method flow schematic diagram of embodiment of the invention subscriber equipment maintaining uplink.
Embodiment
Embodiment of the invention base station will comprise the first physical layer control information that notifying user equipment is set up uplink synchronous information, send to subscriber equipment by first physical layer control channel, subscriber equipment is after receiving this first physical layer control information, set up uplink synchronous with the base station, realized behind the subscriber equipment uplink loss, the base station can notifying user equipment be set up the mechanism of uplink synchronous fast, thereby improved the reliability of transmitting uplink data, avoided because step-out causes retransmitting the system resource waste that causes.
Wherein, the embodiment of the invention detects the subscriber equipment uplink loss when the base station, has downlink data to send to subscriber equipment, and when needing subscriber equipment that these data are fed back, triggers sending the first physical layer control information.
Need to prove that the embodiment of the invention is not limited to above-mentioned trigger mechanism, in the time of need setting up uplink synchronous with subscriber equipment in the base station, just can send the first physical layer control information.
Unless specify, otherwise the embodiment of the invention of introducing is below all used above-mentioned trigger mechanism.
Below in conjunction with Figure of description the embodiment of the invention is described in further detail.
As shown in Figure 2, the synchronous system of embodiment of the invention maintaining uplink comprises: base station 10 and subscriber equipment 20.
Base station 10 is used for by first physical layer control channel, sends to subscriber equipment 20 to comprise the first physical layer control information that notifying user equipment is set up uplink synchronous information.
Subscriber equipment 20 is used in the first physical layer control information of receiving by first physical layer control channel from base station 10, and when containing notifying user equipment in this first physical layer control information and setting up uplink synchronous information, sets up uplink synchronous with base station 10.
The process of specifically setting up uplink synchronous is:
Subscriber equipment 20 is selected a SYNC_UL (uplink synchronous) sign indicating number at random, and sends to base station 10 by UpPCH (uplink synchronous channel);
Base station 10 is according to the detection to the SYNC_UL sign indicating number, determine the timing and the power information of SYNC_UL sign indicating number, thereby determine the transmitted power and the time adjusted value of subscriber equipment 20, and the FPACH feedback information of determining (being transmitted power and time adjusted value) is sent to subscriber equipment 20 by FPACH;
Subscriber equipment 20 is adjusted transmitting power and time according to the FPACH feedback information that receives, thereby finishes the uplink synchronous with base station 10.
Further, subscriber equipment 20 sends to base station 10 by second physical layer control channel after finishing the uplink synchronous of setting up with base station 10, comprises the second physical layer control information of uplink synchronous confirmation;
Base station 10 is by the second physical layer control information that comprise second uplink synchronous confirmation of second physical layer control channel reception from subscriber equipment 20.
As shown in Figure 3, embodiment of the invention base station comprises: processing module 100 and sending module 110.
Sending module 110 is used for the first physical layer control information after processing module 100 processing is sent to subscriber equipment by first physical layer control channel.
Embodiment of the invention base station can further include: confirmation receiver module 120.
Confirmation receiver module 120 is used for by the second physical layer control information that comprise second uplink synchronous confirmation of second physical layer control channel reception from subscriber equipment 20.
Wherein, if the first physical layer control information is E-AGCH (strengthening the absolute grant channel of shape dedicated transmission channel) control information, then first physical layer control channel is E-AGCH;
If the first physical layer control information is the HS-SCCH control information, then first physical layer control channel is HS-SCCH.
Present embodiment is not limited to above-mentioned dual mode, and other physical layer control informations and other corresponding physical layer control channels are suitable for present embodiment equally.
Which kind of mode the base station specifically adopts set up uplink synchronous information as notifying user equipment, can pass through the high-level signaling notifying user equipment, also can arrange in advance in agreement.
As shown in Figure 4, embodiment of the invention subscriber equipment comprises: receiver module 200 and set up module 210.
Set up module 210, be used for after receiver module 200 receives that comprising notifying user equipment sets up the first physical layer control information of uplink synchronous information, setting up uplink synchronous with the base station.
Wherein, subscriber equipment can further include: reply module 220.
If the second physical layer control information that answer module 220 is handled is E-RUCCH (enhanced uplink random access channel) control information, second physical layer control channel of then replying module 220 utilizations is E-RUCCH.
If first physical layer control channel that receiver module 200 utilizes is HS-SCCH, the first physical layer control information of receiving is the HS-SCCH control information, then
The described second physical layer control information that answer module 220 is handled is HS-SICH or E-RUCCH control information, and second physical layer control channel of replying module 220 utilizations is HS-SICH or E-RUCCH.
Wherein, subscriber equipment can further include: determination module 230, first judge module 240 and second judge module 250.
Concrete, determination module 230 is according to the HS-SCCH control information of receiving, by the HS-PDSCH downlink data receiving, determine CQI according to mass measurement to HS-PDSCH, and determine feedback information according to the data decode result of HS-PDSCH, if decode successfully, then feedback information is ACK; Otherwise feedback information is NACK.
First judge module 240 if be used in setting-up time, set up module 210 and is finished the uplink synchronous of setting up with the base station, and then feedback information and the CQI that determination module 230 is determined sends to the base station by HS-SICH; Otherwise, do not send feedback information and CQI that determination module 230 is determined.
Second judge module 250, being used in the second physical layer control information is the E-RUCCH control information, second physical layer control channel is E-RUCCH, and set up module 210 in setting-up time, do not finish the uplink synchronous of setting up with the base station, feedback information and CQI that determination module 230 is determined place the E-RUCCH control information that comprises the uplink synchronous confirmation.
Then reply module 220 and will comprise the E-RUCCH control information of uplink synchronous confirmation, feedback information and CQI, send to the base station by E-RUCCH.
The time of setting can be the delivery time (being within HS-PDSCH and the HS-SICH timing relationship) of HS-SICH, also can set as required.
In specific implementation process, if feedback information and CQI are sent to the base station by HS-SICH, can not send the uplink synchronous confirmation to the base station, promptly do not need to send E-RUCCH, the base station is thought that uplink synchronous is set up to finish behind the feedback information of receiving HS-SICH and CQI;
Also feedback information and CQI can be sent to the base station by HS-SICH, and the uplink synchronous confirmation sends to the base station by E-RUCCH;
Also can not send feedback information and CQI, only send the uplink synchronous confirmation to the base station by E-RUCCH.
As shown in Figure 5, the synchronous method of embodiment of the invention maintaining uplink comprises the following steps:
Wherein, if the first physical layer control information is the E-AGCH control information, then first physical layer control channel is E-AGCH;
If the first physical layer control information is the HS-SCCH control information, then first physical layer control channel is HS-SCCH.
Present embodiment is not limited to above-mentioned dual mode, and other physical layer control informations and other corresponding physical layer control channels are suitable for present embodiment equally.
Which kind of mode the base station specifically adopts set up uplink synchronous information as notifying user equipment, can pass through the high-level signaling notifying user equipment, also can arrange in advance in agreement.
When the first physical layer control information is the E-AGCH control information:
Concrete, the E-AGCH control information is as shown in table 1,
| Information field | Implication |
| Power resource relevant information (PRRI) | 5bits; Expression Node B dispatches the power resource permission to UE |
| Sign indicating number resource related information (CRRI) | 5bits; The spreading code that indication E-PUCH uses |
| Time interval resource relevant information (TRRI) | 5bits; 5 bits indicate time slot 1 to time slot 5 respectively |
| Resource continuous indication (RDI) | 3bits; Be used to the TTI number and the interval information of indicating resource authorization to come into force |
| E-AGCH cyclic sequence number (ECSN) | 3bits; Be used for the auxiliary E-AGCH exterior ring power control of carrying out, the BLER of statistics E-AGCH |
| The E-HICH indication | 2bits; Be used to indicate the E-HICH of bearing downlink feedback information |
| The indication of E-UCCH number | 3bits; The E-UCCH number that expression sends mostly is 8 most |
Table 1E-AGCH control information structure
Uplink synchronous information can be set up as notifying user equipment by revising the existing field implication in the E-AGCH control information or increasing new field in the base station.
1) if use the TRRI field, the TRRI field can be made as " complete 0 ", uplink synchronous is set up in expression;
2) if use the CRRI field, because this field is 5 bits, represent 32 values altogether, only used index 0～30 totally 31 values in the system at present, therefore the CRRI field can be made as " complete 1 ", uplink synchronous is set up in expression;
3) if use the PRRI field,, represent 32 values altogether, can revise the implication of last value, be about to the PRRI field and be made as " complete 1 ", be used for expression and set up uplink synchronous because this field is 5 bits;
4) can be with above-mentioned three field combination in any, uplink synchronous is set up in expression, for example uses above-mentioned TRRI field and CRRI field simultaneously;
5) extra 1 bit information that increases in the E-AGCH control information, uplink synchronous is set up in expression.
Present embodiment is not limited to the mode of above-mentioned several modification E-AGCH control information, and other modes are suitable for present embodiment equally.
When the first physical layer control information is the HS-SCCH control information:
Concrete, the HS-SCCH control information is as shown in table 2,
Table 2HS-SCCH control information structure
Uplink synchronous information can be set up as notifying user equipment by revising the existing field implication in the HS-SCCH control information or increasing new field in the base station.
1) if uses the gap information field, can utilize the 1st bit in 5 bits of gap information field, for example stipulate that time slot 2 is as up, the 1st bit during so corresponding gap information field configuration in 5 bits should be configured to " 0 ", therefore can dispose this bit and set up uplink synchronous for " 1 " is used for expression;
2) if use the code channel information field, can pass through the special pattern of part of initial code (Start Code) and stop code (StopCode), uplink synchronous is set up in expression.
Such as: in the code channel information field of present 8 bits, preceding 4 bits are represented position, initial code road, back 4 bits are represented position, stop code road, and Start Code is not more than Stop Code (except " 11110001 ", the employed spreading factor SF=1 of its expression HS-PDSCH), therefore can use the particular bit pattern of Start Code greater than Stop Code, if subscriber equipment detects Start Code greater than Stop Code (except " 11110001 "), then subscriber equipment triggers uplink synchronous, and these codeword information are also indicated the employed code channel information of HS-PDSCH simultaneously.
3) extra 1 bit information that increases in the HS-SCCH control information, uplink synchronous is set up in expression.
Present embodiment is not limited to the mode of above-mentioned several modification HS-SCCH control information, and other modes are suitable for present embodiment equally.
The process of specifically setting up uplink synchronous is:
Subscriber equipment is selected a SYNC_UL sign indicating number at random, and sends to the base station by UpPCH;
The base station is according to the detection to the SYNC_UL sign indicating number, determine the timing and the power information of SYNC_UL sign indicating number, thereby determine the transmitted power and the time adjusted value of subscriber equipment, and the FPACH feedback information of determining (being transmitted power and time adjusted value) is sent to subscriber equipment by FPACH;
Subscriber equipment is adjusted transmitting power and time according to the FPACH feedback information that receives, thereby finishes the uplink synchronous with the base station.
Wherein, can further include after the step 501:
Accordingly, the base station receives the second physical layer control information from subscriber equipment by second physical layer control channel.
If the second physical layer control information is the E-RUCCH control information, then second physical layer control channel is E-RUCCH.
If the first physical layer control information is the E-AGCH control information, first physical layer channel is E-AGCH, and then the second physical layer control information is the E-RUCCH control information, and second physical layer control channel is E-RUCCH.
If the first physical layer control information is the HS-SCCH control information, first physical layer channel is HS-SCCH, and then the second physical layer control information is HS-SICH or E-RUCCH control information, and second physical layer control channel is HS-SICH or E-RUCCH.
Wherein, if the first physical layer control information is the HS-SCCH control information, then subscriber equipment can further include after receiving the HS-SCCH control information in the step 501:
S1, subscriber equipment receive data according to the HS-SCCH control information of receiving by HS-PDSCH, according to the result to these data, determine feedback information and channel quality indicator (CQI).
Subscriber equipment is according to after receiving the HS-SCCH control information, and control information receives data by HS-PDSCH according to HS-SCCH, according to the result to these data, determines feedback information and channel quality indicator (CQI).
Concrete, subscriber equipment is according to the HS-SCCH control information of receiving, by the HS-PDSCH downlink data receiving, determine CQI according to mass measurement to HS-PDSCH, and determine feedback information according to the data decode result of HS-PDSCH, if decode successfully, then feedback information is ACK; Otherwise feedback information is NACK.
S2, subscriber equipment are checked in setting-up time whether finish the uplink synchronous of setting up with the base station, if then with the feedback information and the CQI that determine, send to the base station by HS-SICH; Otherwise, do not send definite feedback information and CQI or feedback information and CQI are placed the E-RUCCH control information that comprises the uplink synchronous confirmation, send to the base station by E-RUCCH.
If the second physical layer control information is the E-RUCCH control information, second physical layer control channel is E-RUCCH, then among the S2, subscriber equipment is in setting-up time, do not finish the uplink synchronous of setting up with described base station, the feedback information and the CQI that determine are placed the E-RUCCH control information that comprises the uplink synchronous confirmation, send to the base station by E-RUCCH.
Concrete, the time of setting can be the delivery time (being within HS-PDSCH and the HS-SICH timing relationship) of HS-SICH, also can set as required.
In specific implementation process,, then feedback information and CQI can be placed the E-RUCCH control information that comprises the uplink synchronous confirmation if feedback information and CQI are sent to the base station by E-RUCCH;
Also can send the uplink synchronous confirmation to the base station, send feedback information and CQI by the HS-SICH base station by E-RUCCH;
Also can be send the uplink synchronous confirmation to the base station, only need to send feedback information and CQI, the base station is thought that uplink synchronous is set up to finish after receiving feedback information and CQI;
Also can not send feedback information and CQI, only send the uplink synchronous confirmation to the base station by E-RUCCH.
As shown in Figure 6, the embodiment of the invention adopts the synchronous method of E-AGCH control information maintaining uplink to comprise the following steps:
Wherein, the first physical layer control information is the E-AGCH control information, and the second physical layer control information is the E-RUCCH control information.
Step 600, base station are detecting the subscriber equipment uplink loss, and there is the downlink data need be when subscriber equipment sends, to comprise notifying user equipment and set up the E-AGCH control information of uplink synchronous information, and send to subscriber equipment by the E-AGCH control channel, and stop descending scheduling.
Step 601, subscriber equipment receive and contain the E-AGCH control information of setting up uplink synchronous information by the E-AGCH control channel.
Step 602, subscriber equipment are selected a SYNC_UL sign indicating number at random, and send to the base station by UpPCH.
Step 603, base station receive the SYNC_UL sign indicating number by UpPCH, according to detection to the SYNC_UL sign indicating number, determine the timing and the power information of SYNC_UL sign indicating number, thereby determine the transmitted power and the time adjusted value of subscriber equipment, and the FPACH feedback information of determining is sent to subscriber equipment by FPACH.
Step 604, subscriber equipment are adjusted transmitting power and time according to the FPACH feedback information of receiving, thereby finish the uplink synchronous with the base station.
Step 605, subscriber equipment will comprise the E-RUCCH control information of uplink synchronous confirmation after finishing uplink synchronous foundation, send to the base station by E-RUCCH.
After the E-RUCCH control information was received in step 606, base station, the scheduling and the data of carrying out downlink data sent.
In specific implementation process, if the E-RUCCH control information that comprises the uplink synchronous confirmation that subscriber equipment sends is received in the base station, then the base station sends schedule information by HS-SCCH to subscriber equipment;
If the E-RUCCH control information that comprises the uplink synchronous confirmation that subscriber equipment sends is not received in the base station, then the base station will comprise the E-AGCH control information that notifying user equipment is set up uplink synchronous information again, send to subscriber equipment by the E-AGCH control channel.
As shown in Figure 7, the embodiment of the invention adopts the synchronous method of HS-SCCH control information maintaining uplink to comprise the following steps:
Wherein, the first physical layer control information is the HS-SCCH control information, and the second physical layer control information is E-RUCCH control information or HS-SICH control information.
Step 700, base station are detecting the subscriber equipment uplink loss, and there is the downlink data need be when subscriber equipment sends, to comprise notifying user equipment and set up the HS-SCCH control information of uplink synchronous information, send to subscriber equipment by the HS-SCCH control channel.
Step 701, subscriber equipment receive and contain the HS-SCCH control information of setting up uplink synchronous information and down dispatch information by the HS-SCCH control channel.
Step 702, subscriber equipment are selected a SYNC_UL sign indicating number at random, and send to the base station by UpPCH;
Simultaneously, subscriber equipment by the HS-PDSCH downlink data receiving, is determined CQI according to the mass measurement to HS-PDSCH, and is determined feedback information according to the data decode result of HS-PDSCH according to the HS-SCCH control information of receiving.
Step 703, base station receive the SYNC_UL sign indicating number by UpPCH, according to detection to the SYNC_UL sign indicating number, determine the timing and the power information of SYNC_UL sign indicating number, thereby determine the transmitted power and the time adjusted value of subscriber equipment, and the FPACH feedback information of determining is sent to subscriber equipment by FPACH.
Step 704, subscriber equipment are adjusted transmitting power and time according to the FPACH feedback information of receiving, thereby finish the uplink synchronous with the base station.
Step 705, subscriber equipment send processing after finishing uplink synchronous foundation.
Subscriber equipment sends the four kinds of situations that are divided into of handling:
If first kind of subscriber equipment before the delivery time of HS-SICH, successfully set up uplink synchronous with the base station, then, send to the base station by HS-SICH with the feedback information and the CQI that determine, send the uplink synchronous confirmation by E-RUCCH to the base station;
If second kind of subscriber equipment before the delivery time of HS-SICH, successfully set up uplink synchronous with the base station, then, send to the base station by HS-SICH with the feedback information and the CQI that determine, do not send the uplink synchronous confirmation;
If the third subscriber equipment behind the delivery time of HS-SICH, is successfully set up uplink synchronous with the base station, then basis setting in advance can not send feedback information and CQI, sends the uplink synchronous confirmation by E-RUCCH to the base station;
If the 4th kind of subscriber equipment successfully set up uplink synchronous with the base station behind the delivery time of HS-SICH, then feedback information and CQI are placed the E-RUCCH control information that comprises the uplink synchronous confirmation, send to the base station by E-RUCCH.
Handle according to the information of receiving step 706, base station.
Five kinds of situations have been handled to information in the base station:
If first kind of base station is in the time of reception of HS-SICH, receive feedback information and CQI that subscriber equipment sends, then the base station is after receiving the uplink synchronous confirmation that subscriber equipment sends by E-RUCCH, according to feedback information and CQI, determine suitable transformat, carry out descending scheduling by HS-SCCH to the control information that subscriber equipment sends subscriber equipment, do not comprise notifying user equipment in this control information and set up uplink synchronous information;
If second kind of base station is in the time of reception of HS-SICH, receive feedback information and CQI that subscriber equipment sends, then the base station thinks that subscriber equipment successfully set up uplink synchronous, then according to feedback information and CQI, determine suitable transformat, carry out descending scheduling by HS-SCCH to the control information that subscriber equipment sends subscriber equipment, do not comprise notifying user equipment in this control information and set up uplink synchronous information;
If the third base station is in the time of reception of HS-SICH, do not receive feedback information and CQI that subscriber equipment sends, then wait for the E-RUCCH uplink synchronous confirmation that the user sends, if receive this information, think that then user uplink sets up success synchronously, cross HS-SCCH then and carry out descending scheduling, do not comprise notifying user equipment in this control information and set up uplink synchronous information to the control information that subscriber equipment sends subscriber equipment;
If the 4th kind of base station is in the time of reception of HS-SICH, do not receive feedback information and CQI that subscriber equipment sends, behind the delivery time of HS-SICH, receive the E-RUCCH control information that comprises the uplink synchronous confirmation, then the base station to E-RUCCH control information decode, obtain feedback information and CQI, then according to feedback information and CQI, determine suitable transformat, carry out descending scheduling by HS-SCCH to the control information that subscriber equipment sends subscriber equipment, do not comprise notifying user equipment in this control information and set up uplink synchronous information;
If the uplink synchronous confirmation is not received in the 5th kind of base station, then the base station sends the HS-SCCH control information by the HS-SCCH control channel to subscriber equipment again, comprises the HS-SCCH control information that notifying user equipment is set up uplink synchronous information in this control information.
Concrete which kind of mode that adopts, base station and subscriber equipment can be held consultation definite, also can realize passing through agreement.
As shown in Figure 8, the method for embodiment of the invention transmission data comprises the following steps:
Step 800, base station by first physical layer control channel, comprise the first physical layer control information that notifying user equipment is set up uplink synchronous information to the subscriber equipment transmission when having data need send and need subscriber equipment that these data are fed back.
Data sending processing is carried out in step 801, base station after sending the first physical layer control information.
Wherein, step 801 can further include:
The base station is sending the first physical layer control information, and by second physical layer control channel, receive the second physical layer control information that comprises the uplink synchronous confirmation from subscriber equipment after, carry out descending scheduling and handle, and send downlink data.
Embodiment of the invention base station is when the subscriber equipment uplink loss, notifying user equipment is set up uplink synchronous, thereby after sending data to subscriber equipment, can accurately obtain the feedback information that subscriber equipment sends, guarantee the reliability that data send, improved the efficient that sends data.
As shown in Figure 9, the synchronous method of embodiment of the invention subscriber equipment maintaining uplink comprises the following steps:
From the foregoing description as can be seen: embodiment of the invention base station is by first physical layer control channel, sends to subscriber equipment to comprise the first physical layer control information that notifying user equipment is set up uplink synchronous information; After described subscriber equipment is received the described first physical layer control information, set up uplink synchronous with described base station, because the base station can strengthen under the CELL_FACH state, initiatively make subscriber equipment set up uplink synchronous, realized behind the subscriber equipment uplink loss, the mechanism that the base station has downlink data to wait to send out and subscriber equipment is set up uplink synchronous fast when needing up feedback has improved the reliability and the user experience of transmitting uplink data, has saved system resource thereby reduced unnecessary retransmission.
Obviously, 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.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (27)
1, the synchronous method of a kind of maintaining uplink is characterized in that, this method comprises:
The base station comprises the first physical layer control information that notifying user equipment is set up uplink synchronous information by first physical layer control channel to the subscriber equipment transmission;
Described subscriber equipment is set up uplink synchronous with described base station after receiving the described first physical layer control information.
2, the method for claim 1 is characterized in that, this method also comprises:
Described subscriber equipment by second physical layer control channel, sends the second physical layer control information that comprises the uplink synchronous confirmation to described base station after successfully setting up uplink synchronous with described base station.
3, the method for claim 1 is characterized in that,
If the described first physical layer control information is the absolute grant channel E-AGCH control information of enhanced dedicated, then described first physical layer channel is E-AGCH;
If the shared control channel HS-SCCH control information that the described first physical layer control information is a high speed descending sharing channel, then described first physical layer control channel is HS-SCCH.
4, as claim 2 or 3 described methods, it is characterized in that,
If the described second physical layer control information is enhanced uplink random access channel E-RUCCH control information, then described second physical layer control channel is E-RUCCH.
5, method as claimed in claim 2 is characterized in that,
If the described first physical layer control information is the HS-SCCH control information, described first physical layer channel is HS-SCCH, and the then described second physical layer control information is the HS-SICH control information, and described second physical layer control channel is HS-SICH.
6, as claim 3 or 5 described methods, it is characterized in that this method also comprises:
Described subscriber equipment is after the described first physical layer control information of receiving is the HS-SCCH control information, receive data according to described HS-SCCH control information by high-speed downstream Physical Shared Channel HS-PDSCH, according to result, determine feedback information and channel quality indicator (CQI) to these data;
Described subscriber equipment is finished the uplink synchronous of setting up with described base station in setting-up time, with described feedback information and described CQI, send to described base station by HS-SICH.
7, method as claimed in claim 6, it is characterized in that, in the described second physical layer control information is the E-RUCCH control information, described second physical layer control channel is E-RUCCH, and subscriber equipment is in setting-up time, do not finish the uplink synchronous of setting up with described base station, then described feedback information and described CQI are placed the E-RUCCH control information that comprises the uplink synchronous confirmation, send to the base station by E-RUCCH.
8, the synchronous system of a kind of maintaining uplink is characterized in that, this system comprises:
The base station is used for by first physical layer control channel, sends to subscriber equipment to comprise the first physical layer control information that notifying user equipment is set up uplink synchronous information;
Subscriber equipment, be used to receive the described first physical layer control information after, set up uplink synchronous with described base station.
9, system as claimed in claim 8 is characterized in that, described base station comprises:
Processing module is used for that notifying user equipment is set up uplink synchronous information and places the described first physical layer control information;
Sending module is used for the described first physical layer control information after handling is sent to subscriber equipment by first physical layer control channel;
Described subscriber equipment comprises:
Receiver module is used to receive the described first physical layer control information;
Set up module, be used for after described receiver module receives that comprising notifying user equipment sets up the first physical layer control information of uplink synchronous information, setting up uplink synchronous with described base station.
10, system as claimed in claim 9 is characterized in that, described subscriber equipment also comprises:
Reply module, be used for after successfully setting up uplink synchronous, sending to described base station, comprise the second physical layer control information of uplink synchronous confirmation by second physical layer control channel with described base station;
Described base station also comprises:
The confirmation receiver module is used for by described second physical layer control channel, receives the described second physical layer control information from described subscriber equipment.
11, system as claimed in claim 8 is characterized in that,
If the absolute grant channel E-AGCH control information that the described first physical layer control information that described processing module is handled is an enhanced dedicated, described first physical layer control channel that then described sending module utilizes is E-AGCH;
If the shared control channel HS-SCCH control information that the described first physical layer control information that described processing module is handled is a high speed descending sharing channel, described first physical layer control channel that then described sending module utilizes is HS-SCCH.
12, system as claimed in claim 10 is characterized in that,
If the described second physical layer control information that described answer module is handled is enhanced uplink random access channel E-RUCCH control information, described second physical layer control channel that then described answer module is utilized is E-RUCCH.
13, system as claimed in claim 10 is characterized in that,
If the described first physical layer control information that described processing module is handled is the HS-SCCH control information, described first physical layer control channel that described sending module utilizes is HS-SCCH, then
The shared information channel HS-SICH control information that the described second physical layer control information that described answer module is handled is a high speed descending sharing channel, described second physical layer control channel that described answer module is utilized is HS-SICH.
14, as claim 11 or 13 described systems, it is characterized in that described subscriber equipment also comprises:
Determination module, be used for after the described first physical layer control information that described receiver module is received is the HS-SCCH control information, receive data according to described HS-SCCH control information by high-speed downstream Physical Shared Channel HS-PDSCH, according to result, determine feedback information and channel quality indicator (CQI) to these data;
First judge module is used in setting-up time, and the described module of setting up is finished the uplink synchronous of setting up with described base station, with described feedback information and described CQI, sends to described base station by HS-SICH.
15, system as claimed in claim 14 is characterized in that, described subscriber equipment also comprises:
Second judge module, being used in the described second physical layer control information is the E-RUCCH control information, described second physical layer control channel is E-RUCCH, and the described module of setting up is in setting-up time, do not finish the uplink synchronous of setting up with described base station, described feedback information and described CQI that described determination module is determined place the E-RUCCH control information that comprises the uplink synchronous confirmation.
16, a kind of base station is characterized in that, described base station comprises:
Processing module is used for that notifying user equipment is set up uplink synchronous information and places the described first physical layer control information;
Sending module is used for the described first physical layer control information after handling is sent to subscriber equipment by first physical layer control channel.
17, base station as claimed in claim 16 is characterized in that,
If the absolute grant channel E-AGCH control information that the described first physical layer control information that described processing module is handled is an enhanced dedicated, described first physical layer control channel that then described sending module utilizes is E-AGCH;
If the shared control channel HS-SCCH control information that the described first physical layer control information that described processing module is handled is a high speed descending sharing channel, described first physical layer control channel that then described sending module utilizes is HS-SCCH.
18, as claim 16 or 17 described base stations, it is characterized in that described base station also comprises:
The confirmation receiver module is used for by second physical layer control channel, receives the second physical layer control information that comprises the uplink synchronous confirmation from described subscriber equipment.
19, a kind of subscriber equipment is characterized in that, this subscriber equipment comprises:
Receiver module is used for by the first physical layer control information of first physical layer control channel reception from the base station;
Set up module, be used for after described receiver module receives that comprising notifying user equipment sets up the first physical layer control information of uplink synchronous information, setting up uplink synchronous with described base station.
20, subscriber equipment as claimed in claim 19 is characterized in that, described subscriber equipment also comprises:
Reply module, be used for after successfully setting up uplink synchronous, sending to described base station, comprise the second physical layer control information of uplink synchronous confirmation by second physical layer control channel with described base station.
21, subscriber equipment as claimed in claim 19 is characterized in that,
If the described second physical layer control information that described answer module is handled is enhanced uplink random access channel E-RUCCH control information, described second physical layer control channel that then described answer module is utilized is E-RUCCH.
22, subscriber equipment as claimed in claim 19, it is characterized in that, if described first physical layer control channel that described receiver module utilizes is the shared control channel HS-SCCH of high speed descending sharing channel, the described first physical layer control information of receiving is the HS-SCCH control information, then
The shared information channel HS-SICH control information that the described second physical layer control information that described answer module is handled is a high speed descending sharing channel, described second physical layer control channel that described answer module is utilized is HS-SICH.
23, as claim 21 or 22 described subscriber equipmenies, it is characterized in that described subscriber equipment also comprises:
Determination module, be used for after the described first physical layer control information that described receiver module is received is the HS-SCCH control information, receive data according to described HS-SCCH control information by high-speed downstream Physical Shared Channel HS-PDSCH, according to result, determine feedback information and channel quality indicator (CQI) to these data;
First judge module is used in setting-up time, and the described module of setting up is finished the uplink synchronous of setting up with described base station, with described feedback information and described CQI, sends to described base station by HS-SICH.
24, subscriber equipment as claimed in claim 23 is characterized in that, described subscriber equipment also comprises:
Second judge module, being used in the described second physical layer control information is the E-RUCCH control information, described second physical layer control channel is E-RUCCH, and the described module of setting up is in setting-up time, do not finish the uplink synchronous of setting up with described base station, described feedback information and described CQI that described determination module is determined place the E-RUCCH control information that comprises the uplink synchronous confirmation.
25, a kind of method that sends data is characterized in that, this method comprises:
The base station is when having data need send and need subscriber equipment that these data are fed back, by first physical layer control channel, to subscriber equipment send comprise notifying user equipment and set up the first physical layer control information of uplink synchronous information after, carry out data sending processing.
26, method as claimed in claim 25 is characterized in that, described base station is carried out data sending processing and comprised:
Described base station is carried out descending scheduling and is handled after passing through second physical layer control channel, receiving the second physical layer control information that comprises the uplink synchronous confirmation from described subscriber equipment, and sends downlink data.
27, the synchronous method of a kind of maintaining uplink is characterized in that, this method comprises:
Subscriber equipment receives the first physical layer control information from the base station by first physical layer control channel;
Described subscriber equipment comprises notifying user equipment in the described first physical layer control information and sets up uplink synchronous information, sets up uplink synchronous with described base station.
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| CN112770396B (en) * | 2019-11-04 | 2023-07-21 | 维沃移动通信有限公司 | Information processing method and equipment |
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