CN102006106A - Service data processing method and device and communication system - Google Patents

Service data processing method and device and communication system Download PDF

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CN102006106A
CN102006106A CN2009100919528A CN200910091952A CN102006106A CN 102006106 A CN102006106 A CN 102006106A CN 2009100919528 A CN2009100919528 A CN 2009100919528A CN 200910091952 A CN200910091952 A CN 200910091952A CN 102006106 A CN102006106 A CN 102006106A
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coding matrix
data
stream
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encoding process
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吴涛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The embodiment of the invention provides a service data processing method, a service data processing device and a communication system. In the embodiment of the invention, the service data processing method comprises the following steps of: acquiring a first pre-coding matrix for coding an enhancement layer data sub-stream of service data and a second pre-coding matrix for coding a base layer data sub-stream of the service data, wherein the first pre-coding matrix guarantees large gain when a target data receiving end receives a signal, and the second pre-coding matrix guarantees that the influences of the signal on an adjacent data receiving end are small; and coding and sending the service data according to the first pre-coding matrix and the second pre-coding matrix. The embodiment of the invention also provides the corresponding device and the communication system. The service data processing method, the service data processing device and the communication system provided by the embodiment of the invention can ensure that gain is large when the target data receiving end receives the signal and that the influences of the signal on the adjacent data receiving end are small.

Description

Business data processing method, device and communication system
Technical field
The embodiment of the invention relates to communication technical field, particularly a kind of business data processing method, device and communication system.
Background technology
An important development direction of wireless communication technology is " WiMAXization " and " broadband wirelessization ", promptly utilizes wireless mode to provide the data access service of high transfer rate as far as possible to the user.A plurality of developing stage have been experienced in the development of broadband wireless access, from commercial or pre-commercial WCDMA R99 (peak velocity 314kbps) to WCDMA HSDPA (3Mbps), and at present near the LTE technology of finishing, its theoretic descending peak rate can reach 100Mbps, and up peak rate can reach 50Mbps.
Along with further developing of WiMAX access technology, the formulation work of wireless technology standard LTE-A more of new generation (Long Time evolution-Advanced) also launches.LTE-Advance is the standard that 3GPP (3G (Third Generation) Moblie) tissue is released for the requirement of satisfying ITUIMT-Advanced (4G).An important technology that strengthens the LTE performance among the LTE-Advanced is that multi-point cooperative transmits and receives technology, be CoMP (Coordinated multiple point transmission andreception) technology with original distributed multi-antenna technological expansion to sending and the reception field uniting of many sub-districts (base station), promote the performance of Cell Edge User by efficient scheduling and space preliminary treatment, thus the further capacity of elevator system.
Constellation overlapping (Superposition Coding) is called level modulation (Layer Modulation) again, it is present widely used a kind of technology, its basic ideas are the combinations that the modulation symbol of a high-order are split as the modulation symbol of a plurality of low orders, as with 16QAM (Quadrature AmplitudeModulation, orthogonal amplitude modulating and changing) modulation symbol is divided into basic layer and two parts of enhancement layer, the reliable secondary difference of each part mapping bit; A data flow can also be divided in addition has the different son streams that require to Qos, to be mapped to the high basic layer segment of reliability to the sub-stream that Qos has relatively high expectations, to require low sub-stream to be mapped to the low enhancement layer part of reliability to Qos, for being positioned at center of housing estate, signal to noise ratio (Signal to Noise Ratio, hereinafter to be referred as: SNR) higher user, the substream of data of basic layer and enhancement layer all can be parsed, thereby obtain best service, and for being positioned at cell edge, the user that SNR is lower, only need the substream of data of basic layer is parsed, obtain basic service effectiveness.By this implementation, still can obtain certain service effectiveness that guarantees for cell edge, user that SNR is lower.
In existing C oMP technology, an important sight is to adopt the mode of precoding to eliminate the descending interference of minizone, wherein CELL A and CELL B are neighbor cell, UE 1 and UE 2 are subscriber equipment adjacent, that belong to CELL A and CELL B, send to the signal x of UE 1 for CELL A, it is interference to UE 2; In like manner CELL B sends to the signal y of UE 2, and it is interference to UE 1.
UE 1 can arrive channel own by detecting CELL B, and to network-feedback PMI_B_1_Max and PMI_B_1_Min, wherein PMI_B_1_Max is the combination of one group of pre-coding matrix, if CELL B adopts the matrix w in this combination 2Carry out precoding, the signal w of its transmission 2Y is big to the interference of UE 1; PMI_B_1_Max is then opposite, if CELL B adopts the matrix w in this combination 2Carry out precoding, the signal w of its transmission 2Y is to the interference minimum of UE 1; UE 2 also feeds back to network with PMI_A_2_Max and PMI_A_2_Min simultaneously; (PMI_B_1_Max, the PMI_B_1_Min) and (PMI_A_2_Max, PMI_A_2_Min) that CELL A and CELL B exchange get access to.CELL A selects pre-coding matrix PMI_A_2_Min to carry out encoding process, the signal w that makes transmission when carrying out the transmission of downlink service data 1X is to the interference minimum of UE 2, and CELL B selects pre-coding matrix PMI_B_1_Min to carry out precoding processing when sending downlink service data simultaneously, and the feasible signal that sends is to the interference minimum of UE 1.
In addition in the transmission course of uplink business data, can detect the channel of UE 2 by CELL A to itself, obtain one group of PMI_A_2_Max and PMI_A_2_Min thus, wherein PMI_A_2_Max is the combination of one group of pre-coding matrix, when if UE 2 adopts the matrix in this combination to carry out precoding, the signal w of its transmission 2Y is to the interference maximum of CELL A; PMI_A_2_Min is then opposite, if when UE 2 adopts matrix in these combinations to carry out precoding, and the signal w of its transmission 2Y is to the interference minimum of CELL A; CELL also detects and obtains PMI_B_1_Max and PMI_B_1_Min simultaneously; After getting access to above-mentioned encoder matrix, CELL A and CELL B exchange (PMI_B_1_Max, PMI_B_1_Min) and (PMI_A_2_Max, PMI_A_2_Min), this moment, CELL A can send to pre-coding matrix PMI_B_1_Min UE 1, and made the signal that sends disturb minimum to the reception of UE 2; CELL B can send to pre-coding matrix PMI_A_2_Min UE 2 in addition, and makes the signal that sends disturb minimum to the reception of UE 1.
The inventor finds in realizing process of the present invention, there is following technical problem at least in prior art: when the pre-coding matrix that uses the data receiver feedback is encoded to business datum, interference may be reduced, but the gain of data receiver can not be improved other equipment.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of business data processing method, device and communication system, and is little to the interference of adjacent data receiver to realize that the target data receiving terminal receives the big synchronous signal of the gain of business datum.
The embodiment of the invention provides a kind of business data processing method, comprising:
Obtain first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of business datum is carried out encoding process that are used for the sub-stream of the enhancement data of business datum is carried out encoding process, gain when described first pre-coding matrix is guaranteed target data receiving terminal received signal is big, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent data receiver;
According to described first pre-coding matrix and second pre-coding matrix business datum is carried out encoding process and transmission.
The embodiment of the invention also provides a kind of service data processing apparatus, comprising:
Acquisition module, be used to obtain first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of business datum is carried out encoding process that are used for the sub-stream of the enhancement data of business datum is carried out encoding process, gain when described first pre-coding matrix is guaranteed target data receiving terminal received signal is big, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent data receiver;
The encoding process module is used for according to described first pre-coding matrix and second pre-coding matrix business datum being carried out encoding process and transmission.
The embodiment of the invention also provides a kind of communication system, comprise the base station and the subscriber equipment that connect by communication network, described base station is used to obtain first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of downlink service data is carried out encoding process that is used for the sub-stream of the enhancement data of downlink service data is carried out encoding process, gain when described first pre-coding matrix is guaranteed the received signal of target UE is big, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent subscriber equipment; Downlink service data is carried out encoding process and send according to described first pre-coding matrix and second pre-coding matrix to subscriber equipment.
The business data processing method that the embodiment of the invention provides, device and communication system, utilize the first above-mentioned pre-coding matrix and second pre-coding matrix respectively the enhancement data stream and the sub-stream of base layer data of business datum to be encoded by data sending terminal, it is big to guarantee that the target data receiving terminal receives the gain of business datum, guarantees the interference of adjacent data receiver little simultaneously.
Description of drawings
Fig. 1 is the schematic flow sheet of business data processing method embodiment of the present invention;
Fig. 2 is the structural representation of service data processing apparatus embodiment of the present invention;
Fig. 3 is the schematic flow sheet of business data processing method first specific embodiment of the present invention;
Fig. 4 is the schematic flow sheet of business data processing method second specific embodiment of the present invention;
Fig. 5 be Fig. 3 and embodiment illustrated in fig. 4 in system architecture diagram;
Fig. 6 is the structural representation of communication system embodiment of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Guarantee that at being implemented in the prior art signal that data receiver receives is little to the interference of neighbouring device, but can't guarantee the problem of the receiving gain of data receiver, a kind of business data processing method is provided, Fig. 1 is the schematic flow sheet of business data processing method embodiment of the present invention, as shown in Figure 1, comprise the steps:
Step 101, obtain and be used for the sub-stream of the enhancement data of business datum is carried out first pre-coding matrix of encoding process and is used for the sub-stream of the base layer data of business datum is carried out second pre-coding matrix of encoding process, gain when described first pre-coding matrix is guaranteed the data receiver received signal is big, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent data receiver; In the present embodiment is that data sending terminal is when carrying out the business datum transmission, business datum is divided into base layer data stream and enhancement data stream, wherein utilize second pre-coding matrix that the sub-stream of base layer data is carried out encoding process, can realize disturbing little to adjacent data receiver, utilize first pre-coding matrix that the sub-stream of enhancement data is carried out encoding process, gain in the time of can realizing target data receiving terminal received signal is big, data sending terminal in the present embodiment can be the base station, data receiver is UE, can be that data sending terminal is UE simultaneously, data receiver be the base station;
Step 102, business datum is carried out encoding process and send according to described first pre-coding matrix and second pre-coding matrix.Data sending terminal obtains in step 101 in this step first pre-coding matrix and second pre-coding matrix carry out encoding process to business datum, concrete is to utilize first pre-coding matrix that the enhancing straton stream of business datum is carried out encoding process, utilizes second pre-coding matrix that the sub-stream of the enhancement data of business datum is carried out encoding process.
In this step by utilize the first above-mentioned pre-coding matrix and second pre-coding matrix respectively the enhancement data of business datum stream and the sub-stream of base layer data to be encoded at data sending terminal, it is big to guarantee that the target data receiving terminal receives the gain of business datum, guarantees the interference of adjacent data receiver little simultaneously.
In the specific implementation process of the foregoing description, gain maximum in the time of when using first pre-coding matrix to carry out precoding, can guaranteeing the data receiver received signal, can guarantee the interference minimum of signal when using second pre-coding matrix to carry out precoding, use above-mentioned two pre-coding matrixes can reach above-mentioned two effects simultaneously simultaneously adjacent data receiver.
Data sending terminal can base station or subscriber equipment in above-mentioned steps 101, when data sending terminal is the base station, above-mentioned steps 101 can be specially: the base station receive subscriber equipment by down channel is detected generation be used for the sub-stream of the enhancement data of downlink service data is carried out first pre-coding matrix of encoding process and adjacent subscriber equipment by down channel being detected second pre-coding matrix that the sub-stream of the base layer data of downlink service data is handled of being used for of generation, gain when described first pre-coding matrix is used to guarantee target data receiving terminal received signal is big, and described second pre-coding matrix is used to guarantee that the interference to adjacent data receiver is little.
Step 102 can be specially: the base station generates downlink service data W 11X H+ W 12X LAnd target UE transmission, wherein W 11For subscriber equipment by down channel being detected first pre-coding matrix that is used for the sub-stream of the enhancement data of downlink service data is carried out encoding process of generation, X HBe the enhancement data stream of downlink service data, W 12For adjacent subscriber equipment by down channel being detected second pre-coding matrix that the sub-stream of the base layer data of downlink service data is handled of being used for of generation, X LBase layer data stream for downlink service data.
The base station is when carrying out the transmission of downlink service data in the foregoing description, receive subscriber equipment earlier by downstream data channel being detected first pre-coding matrix and second pre-coding matrix that generates, and respectively the base layer data stream and the sub-stream of enhancement data of downlink service data are encoded according to the first above-mentioned pre-coding matrix and second pre-coding matrix, thereby can realize that the base station is when sending downlink service data to subscriber equipment, gain during the target UE received signal is big, and is little to the interference of other adjacent subscriber equipmenies simultaneously.
When above-mentioned data sending terminal is subscriber equipment, above-mentioned steps 101 can be specially: subscriber equipment receive the base station by up channel is detected generation be used for the sub-stream of the enhancement data of uplink business data is carried out first pre-coding matrix of encoding process and adjacent base station by up channel being detected second pre-coding matrix that the sub-stream of the base layer data of uplink business data is handled of being used for of generation, gain when described first pre-coding matrix is used to guarantee the target BS received signal is big, and described second pre-coding matrix is used for signal and guarantees the interference of adjacent base station little.
Above-mentioned step 102 can be specially: generate uplink business data W 11X H+ W 12X LAnd to target BS transmission, wherein W 11For the base station by up channel being detected first pre-coding matrix that is used for the sub-stream of the enhancement data of uplink business data is carried out encoding process of generation, X HBe the enhancement data stream of uplink business data, W 12For adjacent base station by up channel being detected second pre-coding matrix that the sub-stream of the base layer data of uplink business data is handled of being used for of generation, X LBase layer data stream for uplink business data.
Subscriber equipment is when carrying out the transmission of uplink business data in the foregoing description, receive the base station earlier by uplink data channels being detected first pre-coding matrix and second pre-coding matrix that generates, and respectively the base layer data stream and the sub-stream of enhancement data of uplink business data are encoded according to the first above-mentioned pre-coding matrix and second pre-coding matrix, thereby can realize that subscriber equipment is when sending uplink business data to the base station, gain during the target BS received signal is big, and signal is little to the interference of other adjacent base stations.
Fig. 2 is the structural representation of service data processing apparatus embodiment of the present invention, as shown in Figure 2, service data processing apparatus comprises acquisition module 11 and encoding process module 12, wherein acquisition module 11 is used to obtain first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of business datum is carried out encoding process that is used for the sub-stream of the enhancement data of business datum is carried out encoding process, gain when described first pre-coding matrix is guaranteed datum target receiving terminal received signal is big, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent data receiver; Encoding process module 12 is used for according to described first pre-coding matrix and second pre-coding matrix business datum being carried out encoding process and transmission.
The service data processing apparatus that the embodiment of the invention provides, by obtaining first pre-coding matrix and second pre-coding matrix, and the enhancement data stream and the sub-stream of base layer data of business datum is carried out encoding process and transmission according to first pre-coding matrix and second pre-coding matrix, in the time of can being implemented in data receiver reception business datum, the gain of target data receiving terminal is big, and little to the interference of other adjacent data receivers.Service data processing apparatus in the present embodiment can be arranged in base station or the subscriber equipment, can guarantee in the time of in being arranged on the base station when carrying out the transmission of downlink service data, the gain that target UE receives business datum is big, and little to the interference of other adjacent subscriber equipmenies; Can guarantee in the time of in being arranged on subscriber equipment that when carrying out the transmission of uplink business data the gain when target BS receives service signal is big, and signal is little to the interference of other adjacent base stations.
Carrying out pre-coding matrix when choosing in the following specific embodiment of the invention, first pre-coding matrix of the gain maximum when all having selected to guarantee the data receiver received signal and guarantee second pre-coding matrix of signal to the interference minimum of adjacent data receiver.Fig. 3 is the schematic flow sheet of business data processing method first specific embodiment of the present invention, its system architecture by the QoS of 2 UE feedbacks, is divided into one group with 2 UE in the present embodiment as shown in Figure 5, wherein UE 1 is by CELL A service, and its data can be divided into base layer data stream X HWith enhancement data stream X L, and in order to distinguish above-mentioned different substream of data, above-mentioned substream of data can have different transmitted powers, and base layer data stream X for example is set HTransmitted power greater than enhancement data stream X L, UE 2 is by CELL B service, and its data flow also can be divided into base layer data stream Y HWith enhancement data stream Y LAs shown in Figure 3, processing method comprises the steps:
Step 201, UE 1 measurement CELL A and CELL B are to the down channel of UE 1, and obtain 2 groups of pre-coding matrixes and make up (PMI_B_1_Max, PMI_B_1_Min) and PMI_A_1, wherein if CELL B adopts the pre-coding matrix among the PMI_B_1_Max, the signal of its transmission is to the interference maximum of UE 1, if CELL B adopts the pre-coding matrix among the PMI_B_1_Min, the signal of its transmission is to the interference minimum of UE 1, if CELL A adopts the pre-coding matrix among the PMI_A_1, the signal of its transmission can make that gain was maximum when UE 1 received, best performance, after detecting three groups of above-mentioned pre-coding matrixes, UE 1 feeds back to CELL A with it;
Step 202, UE 2 measurement CELL A and CELL B are to the down channel of UE 2, and obtain 2 groups of pre-coding matrixes and make up (PMI_A_2_Max, PMI_A_2_Min) and PMI_B_2, wherein if CELL A adopts the pre-coding matrix among the PMI_A_2_Max, the signal of its transmission is to the interference maximum of UE 2, if CELL A adopts the pre-coding matrix among the PMI_A_2_Min, the signal of its transmission is to the interference minimum of UE 2, if CELL B adopts the pre-coding matrix among the PMI_B_2, the signal of its transmission can make that gain was maximum when UE 2 received, best performance, after detecting three groups of above-mentioned pre-coding matrixes, UE 2 feeds back to CELL B with it;
Step 203, CELL A and above-mentioned two groups of pre-coding matrixes (PMI_B_1_Max, PMI_B_1_Min) and (PMI_A_2_Max, the PMI_A_2_Min) of CELL B exchange;
The pre-coding matrix of downlink service data is determined in step 204, base station, concrete determines the pre-coding matrix of downlink service data X by CELL A, wherein for base layer data stream X HPre-coding matrix w 11Select pre-coding matrix PMI_A_1, for enhancement data stream X LPre-coding matrix w 12Select PMI_A_2_Min; CELL B determines the pre-coding matrix of downlink service data Y, wherein for base layer data stream Y HPre-coding matrix w 21Select pre-coding matrix PMI_B_2, for enhancement data stream Y LPre-coding matrix w 22Select PMI_B_1_Min;
To encode preliminary treatment and send to target UE of downlink service data, concrete is, and CELL A generates according to above-mentioned definite pre-coding matrix sends signal w according to the pre-coding matrix of determining in above-mentioned step for step 205, base station 11X H+ w 12X L, and send to UE1; CELL B generates according to above-mentioned definite pre-coding matrix and sends signal w 21Y H+ w 22Y L, and send to UE2.UE can also be notified by downlink signaling with above-mentioned pre-coding matrix in the base station.
When present embodiment carries out the transmission of downlink service data in the base station, make the pre-coding matrix of UE 1 gain maximum when receiving the signal of CELL A transmission by UE 1 detection down channel and generation, and CELLB is disturbing maximum pre-coding matrix to UE 1 when UE 2 sends signal, UE 2 detects down channel and generates and makes UE 2 maximum pre-coding matrix of gain when receiving the signal of CELL B transmission simultaneously, and CELL A is disturbing maximum pre-coding matrix to UE 2 when UE 1 sends signal, UE 1 and UE 2 send to above-mentioned pre-coding matrix the base station of its ownership respectively, be that UE 1 sends to CELL A, UE 2 sends to CELL B, above-mentioned information by CELL A and CELL B exchange acquisition, CELL A and CELL B generate the transmission signal of downlink service data respectively according to above-mentioned pre-coding matrix and send afterwards, can make CELL A when UE 1 sends signal, the gain maximum of UE 1 received signal, and to the interference minimum of UE 2; Simultaneously CELL B is when UE 2 sends signals, the gain maximum of UE 2 received signals, and to the interference minimum of UE 1.In addition in the present embodiment UE to the pre-coding matrix of base station feedback the time, can feed back several effects pre-coding matrix preferably, for example feed back several signals that can make the base station send bigger pre-coding matrix that when object UE receives, gains, perhaps less pre-coding matrix to the interference of other adjacent UE.
Fig. 4 is the schematic flow sheet of business data processing method second specific embodiment of the present invention, its system architecture as shown in Figure 5, the QoS that feeds back by 2 UE in the present embodiment, 2 UE are divided into one group, wherein UE1 is by (base station A) CELL A service, and its uplink business data can be divided into base layer data stream X HWith enhancement data stream X L, and in order to distinguish above-mentioned different substream of data, above-mentioned substream of data can have different transmitted powers, and base layer data stream X for example is set HTransmitted power greater than enhancement data stream X L, UE2 is by (base station B) CELL B service, and its data flow also can be divided into base layer data stream Y HWith enhancement data stream Y LAs shown in Figure 4, processing method comprises the steps:
Step 301, base station A (CELL A) measures the up channel of UE 1 and UE 2 to base station A (CELL A), and obtain 2 groups of pre-coding matrixes and make up (PMI_A_2_Max, PMI_A_2_Min) and PMI_A_1, wherein if the pre-coding matrix that UE 2 adopts among the PMI_A_2_Max, the signal of its transmission is to the interference maximum of CELL A, if the pre-coding matrix that UE 2 adopts among the PMI_A_2_Min, the signal of its transmission is to the interference minimum of CELLA, if the pre-coding matrix that UE 1 adopts among the PMI_A_1, gain was maximum when the signal of its transmission can make CELL A received signal, best performance;
Step 302, base station B (CELL B) measure the down channel of UE 1 and UE 2 to base station B, and obtain 2 groups of pre-coding matrixes and make up (PMI_B_1_Max, PMI_B_1_Min) and PMI_B_2, wherein if the pre-coding matrix that UE 1 adopts among the PMI_B_1_Max, the signal of its transmission is to the interference maximum of CELL B, if the pre-coding matrix that UE 1 adopts among the PMI_B_1_Min, the signal of its transmission is to the interference minimum of CELL B, if the pre-coding matrix that UE 2 adopts among the PMI_B_2, maximum, the best performance of gain when the signal of its transmission can make CELL B received signal;
Step 303, CELL A and above-mentioned two groups of pre-coding matrixes (PMI_B_1_Max, PMI_B_1_Min) and (PMI_A_2_Max, the PMI_A_2_Min) of CELL B exchange;
Step 304, base station determine that subscriber equipment sends the pre-coding matrix of uplink business data, and concrete determines that by CELL A UE 1 sends the pre-coding matrix of uplink business data X, wherein for base layer data stream X HPre-coding matrix w 11Select pre-coding matrix PMI_A_1, for enhancement data stream X LPre-coding matrix w 12Select PMI_A_2_Min; CELL B determines that UE 2 sends the pre-coding matrix of uplink business data Y, wherein for base layer data stream Y HPre-coding matrix w 21Select pre-coding matrix PMI_B_2, for enhancement data stream Y LPre-coding matrix w 22Select PMI_B_1_Min;
Step 305, base station send to subscriber equipment with the pre-coding matrix of determining in the above-mentioned steps, and the indication subscriber equipment carries out the transmission of uplink business data according to above-mentioned definite pre-coding matrix;
To encode preliminary treatment and send to target BS of uplink business data, concrete is, and UE1 generates according to above-mentioned definite pre-coding matrix sends signal w according to the pre-coding matrix of determining in step 304 for step 306, subscriber equipment 11X H+ w 12X L, and send to CELL A; UE2 generates according to above-mentioned definite pre-coding matrix and sends signal w 21Y H+ w 22Y L, and send to CELL B.
When present embodiment carries out the transmission of uplink business data at subscriber equipment, make the pre-coding matrix of CELL A gain maximum when receiving the signal of UE 1 transmission by CELL A detection up channel and generation, and UE 2 is disturbing minimum pre-coding matrix to CELL A when CELL B sends signal, CELL B detects up channel and generates and makes the maximum pre-coding matrix of gain when receiving the signal of UE 2 transmissions simultaneously, and the pre-coding matrix that when CELL A sends signal, CELL B is disturbed minimum at UE 1, the above-mentioned information that CELL A and CELL B exchange generate also determines that affiliated subscriber equipment sends the pre-coding matrix of uplink business data, and send it to subscriber equipment, UE 1 and UE 2 generate the transmission signal of uplink business data respectively according to above-mentioned pre-coding matrix and send afterwards, can make UE 1 when CELLA sends signal, the gain maximum of CELL A received signal, and to the interference minimum of CELL B; Simultaneously UE 2 is when CELL B sends signal, the gain maximum of CELL B received signal, and to the interference minimum of CELL A.In addition in the present embodiment base station when obtaining pre-coding matrix, can obtain several effects pre-coding matrix preferably, for example feed back several signals that can make UE send bigger pre-coding matrix that when target BS receives, gains, perhaps less pre-coding matrix to the interference of other adjacent base stations.
The embodiment of the invention also provides a kind of communication system, Fig. 6 is the structural representation of communication system embodiment of the present invention, as shown in Figure 6, communication system comprises base station 21 and the subscriber equipment 22 that connects by communication network, wherein base station 21 can obtain first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of downlink service data is carried out encoding process that is used for the sub-stream of the enhancement data of downlink service data is carried out encoding process, gain when described first pre-coding matrix is guaranteed the received signal of target UE is big, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent subscriber equipment; Base station 21 can also be carried out encoding process to downlink service data and sends to subscriber equipment 22 according to described first pre-coding matrix and second pre-coding matrix.
Communication system in the present embodiment, when carrying out the transmission of downlink business number, respectively enhancement data stream and the sub-stream of base layer data are carried out precoding processing by the base station according to above-mentioned first pre-coding matrix that obtains and second pre-coding matrix, make the base station after subscriber equipment sends signal, gain during the target UE received signal is big, and signal is little to the interference of other adjacent subscriber equipmenies.
First and the encoder matrix that the base station obtains in the above embodiment of the present invention and second pre-coding matrix can be obtained by the detection of subscriber equipment to down channel, wherein specifically can be that target UE generates first pre-coding matrix that is used for the sub-stream of the enhancement data of downlink service data is carried out encoding process by down channel is detected, adjacent subscriber equipment is used for second pre-coding matrix that the sub-stream of the base layer data of downlink service data is handled by down channel being detected generate, and first pre-coding matrix and second pre-coding matrix that above-mentioned target UE and adjacent subscriber equipment also are used for generating send to the base station.
Detect down channel and generate the first above-mentioned pre-coding matrix and second pre-coding matrix by data receiver (being subscriber equipment) in the present embodiment, send it to data sending terminal (being the base station) then, the base station carries out sending to subscriber equipment after the encoding process to downlink service data according to the first above-mentioned pre-coding matrix and second pre-coding matrix, obtain big gain during with realization target UE received signal, and little to the interference of other adjacent subscriber equipmenies.
At above-mentioned subscriber equipment during to the base station feedback pre-coding matrix, target UE and adjacent subscriber equipment all are the base stations that pre-coding matrix is fed back to its ownership, carry out the exchange of above-mentioned source code matrix information then by the base station, thereby make the base station when target UE sends signal, can be implemented in when guaranteeing that the target UE received signal obtains big gain, also can realize the interference of the adjacent subscriber equipment that belongs to other base stations little.
The foregoing description is during at the transmission of downlink service data, and precoding processing is carried out to the downlink service data that sends in the base station.Simultaneously, transmission for uplink business data, subscriber equipment obtains first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of uplink business data is carried out encoding process that is used for the sub-stream of the enhancement data of uplink business data is carried out encoding process, it is big to gain when described first pre-coding matrix is guaranteed the received signal of base station, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent base station; According to described first pre-coding matrix and second pre-coding matrix uplink business data is carried out encoding process and base station transmission.
And first pre-coding matrix that concrete above-mentioned subscriber equipment obtains and second pre-coding matrix can be detected and be generated by the base station, concrete generates first pre-coding matrix that is used for the sub-stream of the enhancement data of uplink business data is carried out encoding process by target BS by up channel is detected, adjacent base station is used for second pre-coding matrix that the sub-stream of the base layer data of uplink business data is handled by up channel being detected generate, and above-mentioned target BS and adjacent base station also are used to generate the indication information that comprises first pre-coding matrix and second pre-coding matrix and send to subscriber equipment.
Detect up channel and generate the first above-mentioned pre-coding matrix and second pre-coding matrix by data receiver (being the base station) in the present embodiment, send it to data sending terminal (being subscriber equipment) then, subscriber equipment carries out sending to the base station after the encoding process to uplink business data according to the first above-mentioned pre-coding matrix and second pre-coding matrix, obtain big gain during with realization target BS received signal, and little to the interference of other adjacent base stations.
In the above-described embodiment behind base station detection and the generation pre-coding matrix, the exchange of above-mentioned pre-coding matrix information will be carried out in each base station, the final pre-coding matrix of determining that its affiliated subscriber equipment carries out precoding when sending uplink business data, and send it to subscriber equipment, thereby make subscriber equipment when target BS sends signal, can be implemented in when guaranteeing that the target BS received signal obtains big the gain, can realize that also signal is little to the interference of adjacent base station.
The business data processing method that the invention process provides, device and communication system, when business datum is transmitted, utilize first pre-coding matrix and second pre-coding matrix respectively the enhancement data stream and the sub-stream of base layer data of business datum to be carried out precoding processing earlier, gain when the first above-mentioned pre-coding matrix can be guaranteed target data receiving terminal received signal is big, second pre-coding matrix guarantees that signal is little to the interference of adjacent data receiver, concrete can be in the transmission course of uplink business data, generate pre-coding matrix by the base station by detection to up channel, the base station sends to subscriber equipment with above-mentioned pre-coding matrix, carry out sending after the precoding processing according to the uplink business data of the pre-coding matrix that receives by subscriber equipment to pre-transmission, can guarantee that the gain of target BS when received signal is big, and little to the interference of other adjacent base stations.In addition in the transmission course of downlink data, generate pre-coding matrix by subscriber equipment by detection to down channel, subscriber equipment sends to the base station with above-mentioned pre-coding matrix, carry out sending after the precoding processing according to the downlink service data of the pre-coding matrix that receives by the base station to pre-transmission, can guarantee that the gain of target UE when received signal is big, and little to the interference of other adjacent subscriber equipmenies.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.

Claims (10)

1. a business data processing method is characterized in that, comprising:
Obtain first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of business datum is carried out encoding process that are used for the sub-stream of the enhancement data of business datum is carried out encoding process, gain when described first pre-coding matrix is guaranteed target data receiving terminal received signal is big, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent data receiver;
According to described first pre-coding matrix and second pre-coding matrix business datum is carried out encoding process and transmission.
2. business data processing method according to claim 1, it is characterized in that described second pre-coding matrix that is used for first pre-coding matrix and being used for that the sub-stream of the enhancement data of business datum carries out encoding process is carried out the sub-stream of the base layer data of business datum encoding process that obtains comprises:
Receive subscriber equipment by down channel is detected generation be used for the sub-stream of the enhancement data of downlink service data is carried out first pre-coding matrix of encoding process and adjacent subscriber equipment by down channel being detected second pre-coding matrix that the sub-stream of the base layer data of downlink service data is handled of being used for of generation, gain when described first pre-coding matrix is used to guarantee the target UE received signal is big, and described second pre-coding matrix is used to guarantee that signal is little to the interference of adjacent subscriber equipment.
3. business data processing method according to claim 2 is characterized in that, describedly according to first pre-coding matrix and second pre-coding matrix business datum is carried out encoding process and send comprising:
Generate downlink service data W 11X H+ W 12X LAnd to target UE transmission, wherein W 11For subscriber equipment by down channel being detected first pre-coding matrix that is used for the sub-stream of the enhancement data of downlink service data is carried out encoding process of generation, X HBe the enhancement data stream of downlink service data, W 12For adjacent subscriber equipment by down channel being detected second pre-coding matrix that the sub-stream of the base layer data of downlink service data is handled of being used for of generation, X LBase layer data stream for downlink service data.
4. business data processing method according to claim 1, it is characterized in that described second pre-coding matrix that is used for first pre-coding matrix and being used for that the sub-stream of the enhancement data of business datum carries out encoding process is carried out the sub-stream of the base layer data of business datum encoding process that obtains comprises:
Receive the base station by up channel is detected generation be used for the sub-stream of the enhancement data of uplink business data is carried out first pre-coding matrix of encoding process and adjacent base station by up channel being detected second pre-coding matrix that the sub-stream of the base layer data of uplink business data is handled of being used for of generation, gain when described first pre-coding matrix is used to guarantee the target BS received signal is big, and described second pre-coding matrix is used to guarantee that signal is little to the interference of adjacent base station.
5. business data processing method according to claim 4 is characterized in that, describedly according to first pre-coding matrix and second pre-coding matrix business datum is carried out encoding process and send comprising:
Generate uplink business data W 11X H+ W 12X LAnd to target BS transmission, wherein W 11For the base station by up channel being detected first pre-coding matrix that is used for the sub-stream of the enhancement data of uplink business data is carried out encoding process of generation, X HBe the enhancement data stream of uplink business data, W 12For adjacent base station by up channel being detected second pre-coding matrix that the sub-stream of the base layer data of uplink business data is handled of being used for of generation, X LBase layer data stream for uplink business data.
6. a service data processing apparatus is characterized in that, comprising:
Acquisition module, be used to obtain first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of business datum is carried out encoding process that are used for the sub-stream of the enhancement data of business datum is carried out encoding process, gain when described first pre-coding matrix is guaranteed target data receiving terminal received signal is big, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent data receiver;
The encoding process module is used for according to described first pre-coding matrix and second pre-coding matrix business datum being carried out encoding process and transmission.
7. communication system, comprise the base station and the subscriber equipment that connect by communication network, it is characterized in that, described base station is used to obtain first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of downlink service data is carried out encoding process that is used for the sub-stream of the enhancement data of downlink service data is carried out encoding process, gain when described first pre-coding matrix is guaranteed the received signal of target UE is big, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent subscriber equipment; Downlink service data is carried out encoding process and send according to described first pre-coding matrix and second pre-coding matrix to subscriber equipment.
8. communication system according to claim 7, it is characterized in that, target UE is used for generating first pre-coding matrix that is used for the sub-stream of the enhancement data of downlink service data is carried out encoding process by down channel is detected, adjacent subscriber equipment is used for being used for second pre-coding matrix that the sub-stream of the base layer data of downlink service data is handled by down channel being detected generate, and first pre-coding matrix and second pre-coding matrix that above-mentioned target UE and adjacent subscriber equipment also are used for generating send to the base station.
9. communication system according to claim 7, it is characterized in that, described subscriber equipment is used to obtain first pre-coding matrix and second pre-coding matrix that is used for the sub-stream of the base layer data of uplink business data is carried out encoding process that is used for the sub-stream of the enhancement data of uplink business data is carried out encoding process, it is big to gain when described first pre-coding matrix is guaranteed the received signal of base station, and described second pre-coding matrix guarantees that signal is little to the interference of adjacent base station; According to described first pre-coding matrix and second pre-coding matrix uplink business data is carried out encoding process and base station transmission.
10. communication system according to claim 9, it is characterized in that, target BS is used for generating first pre-coding matrix that is used for the sub-stream of the enhancement data of uplink business data is carried out encoding process by up channel is detected, adjacent base station is used for being used for second pre-coding matrix that the sub-stream of the base layer data of uplink business data is handled by up channel being detected generate, and above-mentioned target BS and adjacent base station also are used to generate the indication information that comprises first pre-coding matrix and second pre-coding matrix and send to subscriber equipment.
CN2009100919528A 2009-09-02 2009-09-02 Service data processing method and device and communication system Pending CN102006106A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103368698A (en) * 2012-03-31 2013-10-23 华为技术有限公司 Multi-in-put multi-out-put (MIMO) pre-coding method, equipment and system
CN104838600A (en) * 2012-12-21 2015-08-12 华为技术有限公司 Method and apparatus for providing generic hierarchical precoding codebooks
CN106034102A (en) * 2015-03-16 2016-10-19 苏州简约纳电子有限公司 LTE terminal reception gain adjustment method
CN106992837A (en) * 2016-01-20 2017-07-28 华为技术有限公司 Method, the network equipment, terminal device and the system of multi-antenna data transmission

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103368698A (en) * 2012-03-31 2013-10-23 华为技术有限公司 Multi-in-put multi-out-put (MIMO) pre-coding method, equipment and system
CN103368698B (en) * 2012-03-31 2017-07-14 华为技术有限公司 A kind of multiple-input and multiple-output MIMO method for precoding, equipment and system
CN104838600A (en) * 2012-12-21 2015-08-12 华为技术有限公司 Method and apparatus for providing generic hierarchical precoding codebooks
US9900063B2 (en) 2012-12-21 2018-02-20 Huawei Technologies Co., Ltd. Method and apparatus for providing generic hierarchical precoding codebooks
CN104838600B (en) * 2012-12-21 2019-02-19 华为技术有限公司 For providing the method and apparatus of general classification precoding codebook
CN106034102A (en) * 2015-03-16 2016-10-19 苏州简约纳电子有限公司 LTE terminal reception gain adjustment method
CN106992837A (en) * 2016-01-20 2017-07-28 华为技术有限公司 Method, the network equipment, terminal device and the system of multi-antenna data transmission
US10771130B2 (en) 2016-01-20 2020-09-08 Huawei Technologies Co., Ltd. Multi-antenna data transmission method, network device, terminal device, and system

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Application publication date: 20110406