CN102026277B - Data sending method, data receiving method and user terminal - Google Patents
Data sending method, data receiving method and user terminal Download PDFInfo
- Publication number
- CN102026277B CN102026277B CN 200910092668 CN200910092668A CN102026277B CN 102026277 B CN102026277 B CN 102026277B CN 200910092668 CN200910092668 CN 200910092668 CN 200910092668 A CN200910092668 A CN 200910092668A CN 102026277 B CN102026277 B CN 102026277B
- Authority
- CN
- China
- Prior art keywords
- user terminal
- code word
- base station
- data
- sends
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention discloses a method, a base station and a user terminal for sending and receiving data. The base station determines a first code and a second code irrelevant to each other, and sends the first code and second code having been determined to a first user terminal and a second user terminal respectively, wherein the frequency offset of the first user terminal is opposite to that of the second user terminal. The base station scrambles the down-link data being sent to the first user terminal according to the first code, and scrambles the down-link data being sent to the second user terminal according to the second code. And, the base station sends the corresponding down-link data having been scrambled respectively to the first user terminal and the second user terminal according to the same frequency point, time slot and code track. By adopting the technical solution, the invention solves the problem of the prior art that the base station is unable to simultaneously distribute different wireless transmission resource to each user terminal which has data-interaction with the base station, which may cause the failure of data transmission.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly a kind of data transmission method for uplink, data receive method and base station, user terminal.
Background technology
At synchronous code division multiple access (TD-SCDMA of time-division, Time Division-Synchronous CodeDivision Multiple Access) in system, if user terminal is positioned at the scope that the base station covers, this base station can send downlink data to this user terminal so, and this user terminal also can send upstream data to this base station.As shown in Figure 1, send the flow chart of downlink data to user terminal for base station in prior art, its concrete processing procedure is as follows:
As shown in Figure 2, send the flow chart of upstream data to the base station for user terminal in prior art, its concrete processing procedure is as follows:
2 transmission upstream datas send a request message to the base station for step 21, user terminal 2;
Step 23, base station 2 informing user terminals 2 send upstream data based on the frequency that distributes, time slot and code channel;
Step 24, user terminal 2 are based on frequency, time slot and the code channel of base station 2 notices, and 2 send upstream data to the base station;
Step 25, base station 2 are based upon frequency, time slot and the code channel that user terminal 2 distributes, and receive the upstream data that user terminal 2 sends.
as fully visible, the base station is sending downlink data to user terminal, when perhaps user terminal sends upstream data to this base station, need the base station to distribute wireless transmission resources for user terminal in advance, wireless transmission resources comprises frequency, time slot and code channel, simultaneously carrying out wireless transmission resources corresponding to each user terminal of data interaction with the base station should be different, it is frequency, it is different having at least a kind of in time slot and code channel, so just can carry out corresponding with data each user terminal, but the user terminal quantity in base station range may be very many, therefore the base station can not guarantee that each user terminal that carries out data interaction for while and base station distributes different wireless transmission resources, if the wireless transmission resources that two user terminals are corresponding is identical, namely two user terminals receive or send data based on identical wireless transmission resources, so when the user terminal downlink data receiving, user terminal can not determine whether the downlink data that receives is the downlink data that the base station sends to self, when user terminal sends upstream data, the base station can not determine that the downlink data that receives is respectively which user terminal sends, be that user terminal can not be corresponding with data, thereby caused the failure of transfer of data.
Summary of the invention
The embodiment of the present invention provides a kind of data transmission method for uplink, data receive method and base station, user terminal, in order to solve exist in prior art due to the base station can not guarantee for simultaneously and base station each user terminal of carrying out data interaction distribute different wireless transmission resources, therefore cause the problem of data transmission fails.
Embodiment of the present invention technical scheme is as follows:
A kind of data transmission method for uplink, the method comprising the steps of: incoherent the first code word and the second code word are determined in the base station; And described the first code word that will determine and the second code word send to respectively first user terminal and the second user terminal, and the frequency deviation of described first user terminal and the second user terminal is opposite; Described base station is treated the downlink data that sends to described first user terminal and is carried out scrambling according to described the first code word, and according to described the second code word, treats the downlink data that sends to described the second user terminal and carry out scrambling; Described base station is based on identical frequency, time slot and code channel, sends respectively downlink data after corresponding scrambling to described first user terminal and the second user terminal.
A kind of base station comprises: determining unit is used for determining incoherent the first code word and the second code word; The code word transmitting element, the first code word and the second code word that are used for determining unit is determined send to respectively first user terminal and the second user terminal, and the frequency deviation of described first user terminal and the second user terminal is opposite; Scrambling unit is used for according to described the first code word, and the described base station downlink data of described first user terminal of giving to be sent is carried out scrambling, and according to described the second code word, the described base station downlink data of described the second user terminal of giving to be sent is carried out scrambling; Data transmission unit is used for based on identical frequency, time slot and code channel, sends respectively downlink data after corresponding scrambling unit scrambling to described first user terminal and the second user terminal.
A kind of data receive method, the method comprising the steps of: user terminal receives the code word that the base station sends; And the downlink data that receives the transmission of described base station; And according to the code word that receives, the downlink data that receives is carried out respectively descrambling; With the downlink data of descrambling success, be defined as described base station and send to the downlink data of self.
A kind of user terminal comprises: the code word receiving element is used for receiving the code word that the base station sends; The data receiver unit is used for receiving the downlink data that described base station sends; The descrambling unit, for the code word that receives according to the code word receiving element, the downlink data that the data receiving element is received carries out respectively descrambling; Determining unit is used for the downlink data with descrambling unit descrambling success, is defined as the downlink data that described base station sends to described user terminal.
A kind of data transmission method for uplink, the method comprising the steps of: user terminal sends upstream data and sends a request message to the base station; And receiving the code word that described base station sends, described code word is that described base station is distributed for described user terminal from two incoherent code words determining; And according to the code word that receives, treat the upstream data that sends to described base station and carry out scrambling; Frequency, time slot and code channel that described user terminal uses during the upstream data after sending scrambling based on opposite another user terminal of frequency deviation send to described base station with the upstream data after scrambling.
A kind of user terminal comprises: message sending unit is used for sending to the base station upstream data and sends a request message; The code word receiving element is used for receiving the code word that described base station sends, and described code word is that described base station is distributed for described user terminal from two incoherent code words determining; Scrambling unit for the code word that receives according to the code word receiving element, is treated the upstream data that sends to described base station and is carried out scrambling; Data transmission unit, the frequency, time slot and the code channel that use when being used for based on another user terminal opposite with the described user terminal frequency deviation upstream data after sending scrambling send to described base station with the upstream data after the scrambling unit scrambling.
A kind of data receive method, the method comprising the steps of: after the base station receives upstream data that first user terminal and the second user terminal send respectively and sends a request message, determine incoherent the first code word and the second code word, the frequency deviation of wherein said first user terminal and the second user terminal is opposite; And the first code word that will determine and the second code word send to respectively described first user terminal and the second user terminal; Described base station receives based on identical frequency, time slot and code channel the upstream data that described first user terminal and the second user terminal send respectively; And according to described the first code word, the upstream data that receives is carried out respectively descrambling, and according to described the second code word, the upstream data that receives is carried out respectively descrambling; Described base station will be defined as the upstream data that the first user terminal sends according to the upstream data of the first code word descrambling success, and will according to the upstream data of the second code word descrambling success, be defined as the upstream data that the second user terminal sends.
A kind of base station comprises: the message sink unit, and be used for receiving the upstream data that first user terminal and the second user terminal send respectively and send a request message, the frequency deviation of wherein said first user terminal and the second user terminal is opposite; The first determining unit is used for determining incoherent the first code word and the second code word after the message sink unit receives upstream data that described first user terminal and the second user terminal send respectively and sends a request message; The code word transmitting element, the first code word and the second code word that are used for the first determining unit is determined send to respectively described first user terminal and the second user terminal; The data receiver unit is used for based on identical frequency, time slot and code channel, receives the upstream data that described first user terminal and the second user terminal send respectively; The descrambling unit is used for according to described the first code word, and the upstream data that the data receiving element is received carries out respectively descrambling, and according to described the second code word, the upstream data that the data receiving element is received carries out respectively descrambling; The second determining unit, be used for the descrambling unit upstream data according to the first code word descrambling success, be defined as the upstream data that the first user terminal sends, and with the descrambling unit upstream data according to the second code word descrambling success, be defined as the upstream data that the second user terminal sends.
in the embodiment of the present invention one technical scheme, if the base station need to send downlink data to user terminal, incoherent the first code word and the second code word are determined in the base station at first, then the first code word that will determine and the second code word send to respectively first user terminal and the second user terminal, wherein the frequency deviation of first user terminal and the second user terminal is opposite, this base station is according to the first code word, treat the downlink data that sends to the first user terminal and carry out scrambling, and according to the second code word, treat the downlink data that sends to the second user terminal and carry out scrambling, this base station is based on identical frequency, time slot and code channel, send respectively downlink data after corresponding scrambling to first user terminal and the second user terminal, each user terminal is after the downlink data that receives the base station transmission, according to the code word that receives, the downlink data that receives is carried out respectively descrambling, the downlink data of descrambling success is defined as the base station sends to the downlink data of self.therefore, for each user terminal in two opposite user terminals of frequency deviation, the code word that the base station is corresponding according to this user terminal, the downlink data of this user terminal of giving to be sent is carried out scrambling, and the base station is based on identical wireless transmission resources, namely based on identical frequency, time slot, code channel, send respectively downlink data after corresponding scrambling to two user terminals, the opposite user terminal of two frequency deviations is all based on identical frequency, time slot, the code channel downlink data receiving, each user terminal can receive two downlink datas, in order to determine the downlink data that sends to self, each user terminal is after receiving downlink data, all send to the code word of self to carry out respectively descrambling to the downlink data that receives according to the base station, if the downlink data that receives is the downlink data that the base station sends to self, this user terminal just can descrambling success, if the downlink data that receives does not send to the downlink data of self for the base station, because the base station sends to the code word of two user terminals uncorrelated, this user terminal descrambling failure, user terminal just can be determined the base station and send to the downlink data of self in the downlink data that receives like this, thereby avoided the problem of data transmission fails,
in the embodiment of the present invention two technical schemes, if user terminal need to send upstream data to the base station, at first user terminal sends a request message to base station transmission upstream data, after the base station receives upstream data that the opposite first user terminal of frequency deviation and the second user terminal send respectively and sends a request message, determine incoherent the first code word and the second code word, then the first code word that will determine and the second code word send to respectively first user terminal and the second user terminal, first user terminal and the second user terminal are respectively according to the code word that receives, treat the upstream data that sends to this base station and carry out scrambling, and the upstream data after scrambling is sent to this base station, this base station is based on identical frequency, time slot and code channel, receive the upstream data that first user terminal and the second user terminal send respectively, then according to the first code word, the upstream data that receives is carried out respectively descrambling, and according to the second code word, the upstream data that receives is carried out respectively descrambling, will be according to the upstream data of the first code word descrambling success, be defined as the upstream data that the first user terminal sends, and will be according to the upstream data of the second code word descrambling success, be defined as the upstream data that the second user terminal sends, therefore, opposite two user terminals of frequency deviation are respectively according to the code word of correspondence, the upstream data of base station of giving to be sent is carried out scrambling, and based on identical wireless transmission resources, namely based on identical frequency, time slot, code channel, send the upstream data after scrambling to the base station, the base station can be based on identical frequency, time slot, code channel receives two upstream datas, which user terminal sends for each upstream data of determining to receive is respectively in the base station, after receiving upstream data, the base station is the code word corresponding according to each user terminal respectively, two upstream datas that receive are carried out descrambling, if the upstream data that receives sends to the base station for this user terminal, the code word descrambling success that base station just can be corresponding according to this user terminal, if the upstream data that receives does not send for this user terminal, because the base station is uncorrelated to the code word that two user terminals send, this base station code word descrambling failure corresponding according to this user terminal, just can to determine each upstream data that receives be respectively which user terminal sends in the base station like this, thereby avoided the problem of data transmission fails.
Description of drawings
Fig. 1 is in prior art, and the base station sends the schematic flow sheet of downlink data to user terminal;
Fig. 2 is in prior art, and user terminal sends the schematic flow sheet of upstream data to the base station;
Fig. 3 is in the embodiment of the present invention one, the data transmission method for uplink schematic flow sheet the when base station sends downlink data to user terminal;
Fig. 4 is in the embodiment of the present invention one, the architecture of base station schematic diagram;
Fig. 5 is in the embodiment of the present invention one, the data receive method schematic flow sheet when user terminal receives the downlink data that the base station sends;
Fig. 6 is in the embodiment of the present invention one, the user terminal structural representation;
Fig. 7 is in the embodiment of the present invention one, carries out the specific implementation schematic flow sheet of transfer of data between base station and user terminal;
Fig. 8 is in the embodiment of the present invention two, the data transmission method for uplink schematic flow sheet when user terminal sends upstream data to the base station;
Fig. 9 is in the embodiment of the present invention two, the user terminal structural representation;
Figure 10 is in the embodiment of the present invention two, the data receive method schematic flow sheet the when base station receives the upstream data that user terminal sends;
Figure 11 is in the embodiment of the present invention two, the architecture of base station schematic diagram;
Figure 12 is in the embodiment of the present invention two, carries out the specific implementation schematic flow sheet of transfer of data between base station and user terminal.
Embodiment
Embodiment of the present invention technical scheme main realized principle, embodiment and the beneficial effect that should be able to reach is at length set forth below in conjunction with each accompanying drawing.
As shown in Figure 3, in the embodiment of the present invention one, the data transmission method for uplink flow chart the when base station sends downlink data to the user terminal that is positioned at the scope that the base station covers, its concrete processing procedure is as follows:
Pre-stored two the incoherent matrix [i in base station
1, i
2, Λ, i
n] and [j
1, j
2, Λ, j
m], then choosing respectively a code word i and j from two matrixes, i and j are uncorrelated, i.e. i*j=0;
The first code word that step 32, base station will be determined and the second code word send to respectively first user terminal and the second user terminal, and wherein the frequency deviation of first user terminal and the second user terminal is opposite;
At first the base station in all user terminals in self coverage, is determined and need to be sent downlink data to which user terminal, then in the user terminal of determining, select two user terminals that frequency deviation is opposite.
When two user terminals are positioned at the coverage of a base station, frequency deviation may be identical or opposite, for two identical user terminals of frequency deviation, if the base station sends downlink data based on identical frequency, time slot, code channel to two user terminals, may cause two interference between downlink data, therefore carrying out wireless transmission resources when multiplexing, the frequency deviation between two user terminals should be opposite.
The base station is after selecting first user terminal and the second user terminal, the first code word and the second code word that step 31 is determined are distributed to respectively this two user terminals, wherein the base station with the first code assignment to the first user terminal, the second code word is distributed to the second user terminal, if the first code word is i, the second code word is j, the first user terminal is user terminal A, the second user terminal is user terminal B, i is distributed to user terminal A, and j is distributed to user terminal B.
The base station sends to the first user terminal with the first code word, the second code word is sent to the second user terminal, in the embodiment of the present invention one, the base station can but be not limited to just the first code word and the second code word and be carried to measure to control in (Measurement Control) message and send to respectively first user terminal and the second user terminal, the base station also can be carried at the first code word and the second code word and send to first user terminal and the second user terminal in the code word notification message, and the code word notification message is to be exclusively used in to notify message to user terminal with code word.
wherein, in prior art, the base station is when sending downlink data to user terminal, at first need to carry out channelization code, then carry out interleaving treatment and modulation treatment, downlink data after modulation treatment is sent to user terminal, in the embodiment of the present invention one, the base station is after modulation treatment, before sending to user terminal, need to utilize the code word of distributing to this user terminal, treat the downlink data that sends to this user terminal and carry out scrambling, for example, the base station is that the code word that user terminal A is distributed is i, downlink data to user terminal A to be sent is data A1, utilize code word for i, data A1 to be carried out scrambling, obtain the data A2 after scrambling, the base station is that the code word that user terminal B distributes is j, downlink data to user terminal B to be sent is data B1, utilize code word for j, data B1 to be carried out scrambling, obtain the data B2 after scrambling.
wherein, the base station is before sending downlink data to user terminal, need to distribute wireless transmission resources for user terminal in advance, frequency when namely distributing the base station to send downlink data and user terminal downlink data receiving, time slot, code channel, if be the wireless transmission resources difference that two user terminals distribute, the wireless transmission resources that for example distributes for user terminal C is frequency C, time slot C and code channel C, the wireless transmission resources that distributes for user terminal D is frequency D, time slot D and code channel D, the base station can be with the downlink data of user terminal C of giving to be sent based on frequency C so, time slot C and code channel C send to user terminal C, with the downlink data of user terminal D of giving to be sent based on frequency D, time slot D and code channel D send to user terminal D, the base station also needs the wireless transmission resources that distributes is notified to user terminal, for example, base station informing user terminal C is based on frequency C, time slot C and code channel C downlink data receiving, informing user terminal D is based on frequency D, time slot D and code channel D downlink data receiving, user terminal just can be determined the data that self need receive according to different wireless transmission resources like this.
in the embodiment of the present invention one, because wireless transmission resources is limited, the base station is that two opposite user terminals of frequency deviation have distributed identical wireless transmission resources, for example the wireless transmission resources for user terminal A and user terminal B distribution is frequency AB, time slot A B and code channel AB, the base station notifies the wireless transmission resources that distributes to each user terminal, be that informing user terminal A and user terminal B are all based on frequency AB, time slot A B and code channel AB downlink data receiving, then the base station after with scrambling data A2 and data B2 based on frequency AB, time slot A B and code channel AB send to user terminal A and user terminal B, this moment, user terminal A and user terminal B were based on frequency AB, time slot A B and code channel AB, all can receive data A2 and data B2.
Based on data transmission method for uplink shown in Figure 3, the embodiment of the present invention one provides a kind of base station, as shown in Figure 4, comprises determining unit 41, code word transmitting element 42, scrambling unit 43 and data transmission unit 44, wherein:
Determining unit 41 is used for determining incoherent the first code word and the second code word;
Code word transmitting element 42, the first code word and the second code word that are used for determining unit 41 is determined send to respectively first user terminal and the second user terminal, and the frequency deviation of above-mentioned first user terminal and the second user terminal is opposite;
Scrambling unit 43, for the first code word of determining according to determining unit 41, the base station downlink data of first user terminal of giving to be sent is carried out scrambling, and determine the second code word according to determining unit 41, the base station downlink data of described the second user terminal of giving to be sent is carried out scrambling;
Preferably, code word transmitting element 42 comprises that specifically intron unit and code word send subelement, intron unit wherein, be used for the first code word that determining unit 41 is determined is inserted into the measurement control message to the first user terminal to be sent, and determining unit 41 is determined the second code word be inserted in the measurement control message to the second user terminal to be sent; Code word sends subelement, and the measurement control message that is used for the intron unit has been inserted the first code word sends to the first user terminal, and the measurement control message that the intron unit has inserted the second code word is sent to the second user terminal.
Based on data transmission method for uplink shown in Figure 3, the embodiment of the present invention one provides a kind of data receive method, and as shown in Figure 5, its concrete processing procedure is as follows:
If two user terminals that base station selected frequency deviation is opposite are respectively user terminal A and user terminal B, the base station is that the code word that user terminal A is distributed is i, the code word of distributing for user terminal B is j, so user terminal A and user terminal B all can but be not limited to the code word that sends by Measurement Control message sink base station.
The base station is before sending downlink data, to notify to user terminal A and user terminal B for the wireless transmission resources (frequency AB, time slot A B and code channel AB) of user terminal A and user terminal B distribution, be that informing user terminal A and user terminal B are all based on frequency AB, time slot A B and code channel AB downlink data receiving, user terminal A and user terminal B be based on frequency AB, time slot A B and code channel AB, all receives data A2 and data B2 after the scrambling of base station.
The code word that user terminal A receives is i, downlink data after the scrambling that receives is data A2 and data B2, user terminal A respectively according to i to data A2 and data B2 descrambling, obtain after to data A1 scrambling by i because data A2 is the base station, therefore can obtain data A1 according to i to data A2 descrambling, i.e. descrambling success, because being the base station, data B2 obtains after to data B1 scrambling by j, i and j are uncorrelated, therefore according to i, data B2 descrambling just be can not get any data, i.e. descrambling failure.
User terminal further carries out demodulation process with the data that obtain after descrambling after descrambling success, and then deinterleaving and carry out channel-decoding and operate.
by above-mentioned processing procedure as can be known, in the embodiment of the present invention one technical scheme, if the base station need to send downlink data to user terminal, incoherent the first code word and the second code word are determined in the base station at first, then the first code word that will determine and the second code word send to respectively first user terminal and the second user terminal, wherein the frequency deviation of first user terminal and the second user terminal is opposite, this base station is according to the first code word, treat the downlink data that sends to the first user terminal and carry out scrambling, and according to the second code word, treat the downlink data that sends to the second user terminal and carry out scrambling, this base station is based on identical frequency, time slot and code channel, send respectively downlink data after corresponding scrambling to first user terminal and the second user terminal, each user terminal is after the downlink data that receives the base station transmission, according to the code word that receives, the downlink data that receives is carried out respectively descrambling, the downlink data of descrambling success is defined as the base station sends to the downlink data of self.therefore, for each user terminal in two opposite user terminals of frequency deviation, the code word that the base station is corresponding according to this user terminal, the downlink data of this user terminal of giving to be sent is carried out scrambling, and the base station is based on identical wireless transmission resources, namely based on identical frequency, time slot, code channel, send respectively downlink data after corresponding scrambling to two user terminals, the opposite user terminal of two frequency deviations is all based on identical frequency, time slot, the code channel downlink data receiving, each user terminal can receive two downlink datas, in order to determine the downlink data that sends to self, each user terminal is after receiving downlink data, all send to the code word of self to carry out respectively descrambling to the downlink data that receives according to the base station, if the downlink data that receives is the downlink data that the base station sends to self, this user terminal just can descrambling success, if the downlink data that receives does not send to the downlink data of self for the base station, because the base station sends to the code word of two user terminals uncorrelated, this user terminal descrambling failure, user terminal just can be determined the base station and send to the downlink data of self in the downlink data that receives like this, thereby avoided the problem of data transmission fails.
Based on data receive method shown in Figure 5, the embodiment of the present invention one provides a kind of user terminal, as shown in Figure 6, comprises code word receiving element 61, data receiver unit 62, descrambling unit 63 and determining unit 64, wherein:
Code word receiving element 61 is used for receiving the code word that the base station sends;
Data receiver unit 62 is used for receiving the downlink data that above-mentioned base station sends;
Descrambling unit 63, for the code word that receives according to code word receiving element 61, the downlink data that data receiving element 62 is received carries out respectively descrambling;
Determining unit 64 is used for the downlink data with descrambling unit 63 descrambling successes, is defined as the downlink data that above-mentioned base station sends to this user terminal.
The below provides more specifically execution mode.
The base station need to send downlink data to user terminal A, user terminal B, user terminal C, user terminal D, as shown in Figure 7, for carrying out the specific implementation flow chart of transfer of data in the embodiment of the present invention one between base station and user terminal, its concrete processing procedure is as follows:
As shown in Figure 8, in the embodiment of the present invention two, the data transmission method for uplink flow chart the when user terminal that is positioned at the scope that the base station covers sends upstream data to the base station, its concrete processing procedure is as follows:
if user terminal need to send upstream data to the base station, needing to ask in advance the base station is that it distributes wireless transmission resources, user terminal can send upstream data to the base station and send a request message, after the base station receives this message, can distribute wireless transmission resources for user terminal, and the wireless transmission resources that distributes is notified to user terminal, user terminal is based on the wireless transmission resources that distributes, send upstream data to the base station, in the embodiment of the present invention two, the base station is that two opposite user terminals of frequency deviation have distributed identical wireless transmission resources, namely two user terminals are based on identical frequency, time slot, code channel, send upstream data to the base station.
The base station after receiving upstream data and sending a request message, is further the user terminal distribution codeword, and wherein the code word that receives of two opposite user terminals of frequency deviation is incoherent.
Based on data transmission method for uplink shown in Figure 8, the embodiment of the present invention two provides a kind of user terminal, as shown in Figure 9, comprises message sending unit 91, code word receiving element 92, scrambling unit 93 and data transmission unit 94, wherein:
Code word receiving element 92 is used for receiving the code word that above-mentioned base station sends, and the code word that receives is that the base station is distributed for this user terminal from two incoherent code words determining;
Scrambling unit 93, the frequency, time slot and the code channel that use when being used for based on another user terminal opposite with this user terminal frequency deviation upstream data after sending scrambling, according to the code word that code word receiving element 92 receives, treat the upstream data that sends to above-mentioned base station and carry out scrambling;
Based on data transmission method for uplink shown in Figure 8, the embodiment of the present invention two provides a kind of data receive method, and as shown in figure 10, its concrete processing procedure is as follows:
After step 101, base station receive upstream data that first user terminal and the second user terminal send respectively and send a request message, determine incoherent the first code word and the second code word, wherein the frequency deviation of first user terminal and the second user terminal is opposite;
The upstream data that the base station may receive a lot of user terminals transmissions sends a request message, and two user terminals that frequency deviation is opposite can be selected in the base station in the user terminal that sends above-mentioned message.
the base station is after receiving upstream data that first user terminal and the second user terminal send respectively and sending a request message, also need to distribute wireless transmission resources for user terminal, and the wireless transmission resources that distributes is notified to user terminal, user terminal is based on the wireless transmission resources that distributes, send upstream data to the base station, in the embodiment of the present invention two, the base station is that first user terminal and the second user terminal have distributed identical wireless transmission resources, namely two user terminals are based on identical frequency, time slot, code channel, send upstream data to the base station, for example the base station is that user terminal A and user terminal B have all distributed frequency AB, time slot A B and code channel AB.
The first code word that step 102, base station will be determined and the second code word send to respectively first user terminal and the second user terminal;
The base station at first with the first code assignment to the first user terminal, the second code word is distributed to the second user terminal, for example i is distributed to user terminal A, j is distributed to user terminal B, wherein i and j are uncorrelated;
Wherein, the base station can but be not limited to be carried at for the code word that user terminal distributes and send to this user terminal in MeasurementControl message, also code word can be carried in the code word notification message and send to user terminal, the code word notification message is to be exclusively used in to notify message to user terminal with code word.
Step 103, base station receive based on identical frequency, time slot and code channel the upstream data that first user terminal and the second user terminal send respectively;
Above-mentioned first user terminal and the second user terminal are based on base station assigns, identical frequency, time slot and code channel, send upstream data to the base station, be that the base station is based on identical frequency, time slot and code channel, can receive two upstream datas, if the upstream data that user terminal A sends is data A2, the upstream data that user terminal B sends is data B2, and the base station based on frequency AB, time slot A B and code channel AB, can receive data A2 and data B2.
Step 104, base station are carried out respectively descrambling according to the first code word to the upstream data that receives, and according to the second code word, the upstream data that receives are carried out respectively descrambling;
the base station is carried out descrambling according to code word i to data A2 and data B2, then according to code word j, data A2 and data B2 are carried out descrambling, because being user terminal, data A2 obtains after to data A1 scrambling according to code word i, therefore the base station can access data A1 according to code word i after to data A2 descrambling, it is the descrambling success, because being user terminal, data B1 obtains after to data B1 scrambling according to code word j, and code word i and j are uncorrelated, therefore the base station can not get any data according to code word i after to data B2 descrambling, it is the descrambling failure, in like manner, the base station is failed to data A2 descrambling according to code word j, successful to data B2 descrambling according to code word j.
Step 105, the base station will be defined as the upstream data that the first user terminal sends according to the upstream data of the first code word descrambling success, and will according to the upstream data of the second code word descrambling success, be defined as the upstream data that the second user terminal sends.
The upstream data that the user terminal A transmission is determined in the base station is data A1, and the upstream data that user terminal B sends is data B1.
by above-mentioned processing procedure as can be known, in the embodiment of the present invention two technical schemes, if user terminal need to send upstream data to the base station, at first user terminal sends a request message to base station transmission upstream data, after the base station receives upstream data that the opposite first user terminal of frequency deviation and the second user terminal send respectively and sends a request message, determine incoherent the first code word and the second code word, then the first code word that will determine and the second code word send to respectively first user terminal and the second user terminal, first user terminal and the second user terminal are respectively according to the code word that receives, treat the upstream data that sends to this base station and carry out scrambling, and the upstream data after scrambling is sent to this base station, this base station is based on identical frequency, time slot and code channel, receive the upstream data that first user terminal and the second user terminal send respectively, then according to the first code word, the upstream data that receives is carried out respectively descrambling, and according to the second code word, the upstream data that receives is carried out respectively descrambling, will be according to the upstream data of the first code word descrambling success, be defined as the upstream data that the first user terminal sends, and will be according to the upstream data of the second code word descrambling success, be defined as the upstream data that the second user terminal sends, therefore, opposite two user terminals of frequency deviation are respectively according to the code word of correspondence, the upstream data of base station of giving to be sent is carried out scrambling, and based on identical wireless transmission resources, namely based on identical frequency, time slot, code channel, send the upstream data after scrambling to the base station, the base station can be based on identical frequency, time slot, code channel receives two upstream datas, which user terminal sends for each upstream data of determining to receive is respectively in the base station, after receiving upstream data, the base station is the code word corresponding according to each user terminal respectively, two upstream datas that receive are carried out descrambling, if the upstream data that receives sends to the base station for this user terminal, the code word descrambling success that base station just can be corresponding according to this user terminal, if the upstream data that receives does not send for this user terminal, because the base station is uncorrelated to the code word that two user terminals send, this base station code word descrambling failure corresponding according to this user terminal, just can to determine each upstream data that receives be respectively which user terminal sends in the base station like this, thereby avoided the problem of data transmission fails.
Based on data receive method shown in Figure 10, the embodiment of the present invention two provides a kind of base station, as shown in figure 11, comprise message sink unit 111, the first determining unit 112, code word transmitting element 113, data receiver unit 114, descrambling unit 115 and the second determining unit 116, wherein:
The first determining unit 112 is used for determining incoherent the first code word and the second code word after message sink unit 111 receives upstream data that first user terminal and the second user terminal send respectively and sends a request message;
Code word transmitting element 113, the first code word and the second code word that are used for the first determining unit 112 is determined send to respectively above-mentioned first user terminal and the second user terminal;
Descrambling unit 115, for the first code word of determining according to the first determining unit 112, the upstream data that data receiving element 114 is received carries out respectively descrambling, and the second code word of determining according to the first determining unit 112, the upstream data that data receiving element 114 is received carries out respectively descrambling;
The second determining unit 116, be used for descrambling unit 115 upstream datas according to the first code word descrambling success, be defined as the upstream data that the first user terminal sends, and with descrambling unit 115 upstream datas according to the second code word descrambling success, be defined as the upstream data that the second user terminal sends.
The below provides more specifically execution mode.
User terminal A, user terminal B, user terminal C and user terminal D need to send upstream data to the base station, as shown in figure 12, for carrying out the specific implementation flow chart of transfer of data in the embodiment of the present invention two between base station and user terminal, its concrete processing procedure is as follows:
After step 122, base station receive above-mentioned message, select the opposite user terminal A of frequency deviation and user terminal B in the user terminal that sends above-mentioned message;
The technical scheme that the embodiment of the present invention provides can but be not limited to be applicable to transfer of data between user terminal on base station and bullet train, wherein identical wireless transmission resources can be distributed by opposite user terminal for two frequency deviations on a bullet train in the base station, identical wireless transmission resources also can be distributed for the opposite user terminal of two frequency deviations that lays respectively on two bullet trains in the base station, so just can in the situation that wireless transmission resources is limited, effectively improve the capacity of mobile communications network.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of claim of the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. a data transmission method for uplink, is characterized in that, comprising:
Incoherent the first code word and the second code word are determined in the base station; And
Described the first code word and the second code word determined are sent to respectively first user terminal and the second user terminal, and the frequency deviation of described first user terminal and the second user terminal is opposite;
Described base station is treated the downlink data that sends to described first user terminal and is carried out scrambling according to described the first code word, and according to described the second code word, treats the downlink data that sends to described the second user terminal and carry out scrambling;
Described base station is based on identical frequency, time slot and code channel, sends respectively downlink data after corresponding scrambling to described first user terminal and the second user terminal.
2. data transmission method for uplink as claimed in claim 1, is characterized in that, described base station is carried at the first code word and the second code word to measure in control message and sends to respectively first user terminal and the second user terminal.
3. a base station, is characterized in that, comprising:
Determining unit is used for determining incoherent the first code word and the second code word;
The code word transmitting element, the first code word and the second code word that are used for determining unit is determined send to respectively first user terminal and the second user terminal, and the frequency deviation of described first user terminal and the second user terminal is opposite;
Scrambling unit is used for according to described the first code word, and the described base station downlink data of described first user terminal of giving to be sent is carried out scrambling, and according to described the second code word, the described base station downlink data of described the second user terminal of giving to be sent is carried out scrambling;
Data transmission unit is used for based on identical frequency, time slot and code channel, sends respectively downlink data after corresponding scrambling unit scrambling to described first user terminal and the second user terminal.
4. base station as claimed in claim 3, is characterized in that, the code word transmitting element specifically comprises:
The intron unit is used for the first code word that determining unit is determined is inserted into the measurement control message to the first user terminal to be sent, and determining unit is determined the second code word is inserted in the measurement control message to the second user terminal to be sent;
Code word sends subelement, and the measurement control message that is used for having inserted the first code word sends to described first user terminal, and the measurement control message that will insert the second code word sends to described the second user terminal.
5. a data transmission method for uplink, is characterized in that, comprising:
User terminal sends upstream data and sends a request message to the base station; And
Receive the code word that described base station sends, described code word is that described base station is distributed for described user terminal from two incoherent code words determining; And
According to the code word that receives, treat the upstream data that sends to described base station and carry out scrambling;
Frequency, time slot and code channel that described user terminal uses during the upstream data after sending scrambling based on opposite another user terminal of frequency deviation send to described base station with the upstream data after scrambling.
6. a user terminal, is characterized in that, comprising:
Message sending unit is used for sending to the base station upstream data and sends a request message;
The code word receiving element is used for receiving the code word that described base station sends, and described code word is that described base station is distributed for described user terminal from two incoherent code words determining;
Scrambling unit for the code word that receives according to the code word receiving element, is treated the upstream data that sends to described base station and is carried out scrambling;
Data transmission unit, the frequency, time slot and the code channel that use when being used for based on another user terminal opposite with the described user terminal frequency deviation upstream data after sending scrambling send to described base station with the upstream data after the scrambling unit scrambling.
7. a data receive method, is characterized in that, comprising:
After the base station receives upstream data that first user terminal and the second user terminal send respectively and sends a request message, determine incoherent the first code word and the second code word, the frequency deviation of wherein said first user terminal and the second user terminal is opposite; And
The first code word and the second code word determined are sent to respectively described first user terminal and the second user terminal;
Described base station receives based on identical frequency, time slot and code channel the upstream data that described first user terminal and the second user terminal send respectively; And
According to described the first code word, the upstream data that receives is carried out respectively descrambling, and according to described the second code word, the upstream data that receives is carried out respectively descrambling;
Described base station will be defined as the upstream data that the first user terminal sends according to the upstream data of the first code word descrambling success, and will according to the upstream data of the second code word descrambling success, be defined as the upstream data that the second user terminal sends.
8. a base station, is characterized in that, comprising:
The message sink unit be used for to receive the upstream data that first user terminal and the second user terminal send respectively and sends a request message, and the frequency deviation of wherein said first user terminal and the second user terminal is opposite;
The first determining unit is used for determining incoherent the first code word and the second code word after the message sink unit receives upstream data that described first user terminal and the second user terminal send respectively and sends a request message;
The code word transmitting element, the first code word and the second code word that are used for the first determining unit is determined send to respectively described first user terminal and the second user terminal;
The data receiver unit is used for based on identical frequency, time slot and code channel, receives the upstream data that described first user terminal and the second user terminal send respectively;
The descrambling unit is used for according to described the first code word, and the upstream data that the data receiving element is received carries out respectively descrambling, and according to described the second code word, the upstream data that the data receiving element is received carries out respectively descrambling;
The second determining unit, be used for the descrambling unit upstream data according to the first code word descrambling success, be defined as the upstream data that the first user terminal sends, and with the descrambling unit upstream data according to the second code word descrambling success, be defined as the upstream data that the second user terminal sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910092668 CN102026277B (en) | 2009-09-22 | 2009-09-22 | Data sending method, data receiving method and user terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910092668 CN102026277B (en) | 2009-09-22 | 2009-09-22 | Data sending method, data receiving method and user terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102026277A CN102026277A (en) | 2011-04-20 |
| CN102026277B true CN102026277B (en) | 2013-06-05 |
Family
ID=43866984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910092668 Expired - Fee Related CN102026277B (en) | 2009-09-22 | 2009-09-22 | Data sending method, data receiving method and user terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102026277B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220080B (en) * | 2012-01-18 | 2016-01-20 | 上海贝尔股份有限公司 | For the method and apparatus of quantization of channel state information |
| WO2015051504A1 (en) * | 2013-10-09 | 2015-04-16 | 华为技术有限公司 | Method and apparatus for scheduling semi-persistent shared resources |
| CN109391342B (en) | 2017-08-04 | 2020-10-23 | 华为技术有限公司 | Data transmission method, related equipment and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435020A (en) * | 1999-12-15 | 2003-08-06 | 诺基亚有限公司 | Method and arrangement for multiplexing several users to communication channels of TDMA system |
| CN101188430A (en) * | 2006-11-15 | 2008-05-28 | 中兴通讯股份有限公司 | A frequency deviation pre-compensation device and method for broadband code division multiple address user device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006352302C1 (en) * | 2006-12-22 | 2012-08-16 | Fujitsu Limited | Wireless communication method, base station, and user terminal |
-
2009
- 2009-09-22 CN CN 200910092668 patent/CN102026277B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435020A (en) * | 1999-12-15 | 2003-08-06 | 诺基亚有限公司 | Method and arrangement for multiplexing several users to communication channels of TDMA system |
| CN101188430A (en) * | 2006-11-15 | 2008-05-28 | 中兴通讯股份有限公司 | A frequency deviation pre-compensation device and method for broadband code division multiple address user device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102026277A (en) | 2011-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104429141B (en) | Signaling and channel design for D2D communications | |
| KR101258872B1 (en) | A method, system and terminal for implementing upward frequency hopping transmission | |
| CN102088775B (en) | Method, system and device for distributing contention resources | |
| CN101978756B (en) | Communication system, mobile station, base station, response decision method, resource configuration decision method, and program | |
| CN101690063B (en) | Base station device and notice channel transmitting method | |
| CN101405983B (en) | Resource allocations | |
| CN101385267B (en) | Method and apparatus for conveying control channel information in OFDMA systems | |
| CN107734468B (en) | Multicast transmission method and device | |
| CN101401339B (en) | Base station and downstream link channel transmission method | |
| CN104350796A (en) | Wireless communication system, wireless base station device, terminal device, and method for allocating wireless resources | |
| CN101006660A (en) | Method and apparatus for transparent relaying | |
| JP5158384B2 (en) | How to send control information | |
| CN108633016B (en) | Method and device for receiving and transmitting downlink control information | |
| CN107920333B (en) | Multicast scheduling method, HARQ (hybrid automatic repeat request) information receiving method, user equipment and base station | |
| CN101472300A (en) | Method, device and system for sending and receiving scheduling user data information | |
| CN111148258B (en) | Dynamic authorization-free uplink scheduling method, and terminal device, network device and system applying same | |
| KR20140069300A (en) | A method of resource scheduling used for machine type communications | |
| KR20100024881A (en) | A method for a mbms feedback for e-mbs adaptation | |
| CN101854662A (en) | Method and device for sending downlink acknowledge/negative acknowledge in LTE (Long Term Evolution) system | |
| RU2009119508A (en) | WIRELESS CONFIRMATION CHANNEL | |
| US20090185483A1 (en) | Method and Apparatus for Transmitting Data and Error Recovery | |
| CN102065545A (en) | Methods for notifying and determining locations of resources and system and equipment | |
| CN102017754B (en) | Resource allocation in two domains | |
| CN102026277B (en) | Data sending method, data receiving method and user terminal | |
| CN105323855A (en) | Instruction information processing method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20210922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |