CN109525371A - The method and node of impartial error protection are realized in wireless communication system using adaptive layered modulation - Google Patents

Abstract

By providing dynamic stream-label mapping, one kind is disclosed for method (700), transmitter (110), the method (900) in receiver (120) and the receiver (120) in the transmitter (110) of multiplexed data stream (130-1,130-2).The method (700) includes: transmission (701) data on multiple data flows (130-1,130-2)；Obtain (702) channel quality estimation；(702) channel quality estimation based on the acquisition selects (703) data flow (130-1,130-2)；It determines (704) modulation scheme (400)；It is formed (705) binary marks (420), and each bit in the label (420) is mapped with selected (703) data flow (130-1,130-2)；By collecting bit (b1, b2 ..., bn) from the data flow (130-1,130-2), determine (706) described binary marks (420)；According to the binary marks (420), (707) constellation point (410) are selected in (704) modulation scheme (400) of the determination；And the data that (708) characterize selected (707) constellation point (410) are sent in time-frequency resource elements.

Description

The side of impartial error protection is realized in wireless communication system using adaptive layered modulation Method and node

Technical field

Implementation described herein relates generally to a kind of method in transmitter, transmitter, the side in receiver Method and receiver.Specifically, there is described herein one kind maps the multiple independent digits of parallel transmission by providing dynamic stream-label According to the mechanism of stream；To effectively share identical physical resource, and similar mistake is provided to the data flow of transmission and is protected Protect rank.

Background technique

User equipment (UE) (also referred to as receiver), movement station, wireless terminal and/or mobile terminal can wirelessly communicate It is wirelessly communicated in system, sometimes referred to as cellular radio system or cordless communication network.It can be by wirelessly connecing Enter network (RAN) and possible one or more core networks between for example multiple UE, between UE and wired connection phone And/or it is communicated between UE and server.Wireless communication may include such as voice, message, packet data, video, broadcast Etc. various communication services.

The UE/ receiver can also refer to mobile phone, cellular phone, tablet computer or with the portable of radio function Computer etc..UE herein can transmit voice by another entity of Radio Access Network and for example, another UE or server And/or data, the UE is for example, portable, pocket can storage type, hand-held, comprising computer or vehicle mobile equipment.

Wireless communication system may include multiple transmission point (TP), be used to pass through radio frequency with any UE within the scope of each TP The air interface of operation is communicated.Therefore, more in specific geographical area in the range of any TP of wireless communication system A UE can be communicated by any TP.

Sometimes, wireless communication system covering can be divided into the geographic area of multiple cell areas, wherein each small trivial Domain provides service by transfer point (TP) or wireless network node, for example, base station, radio base station (RBS) or base station transceiver Platform (BTS) depends on used technology and/or term, is properly termed as " eNB ", " eNodeB " within some network, " NodeB " or " B node ".

Sometimes, word " cell " can be used for indicating TP/ radio network node itself.However, in normal term, it is small Area can be used for indicating to provide the geographic area of radio covering by the TP/ radio network node for being located at base station site. A TP/ radio network node positioned at base station site can service one or several cells.TP/ radio network node It can be communicated by the air interface of radio frequency operation with any UE within the scope of the TP/ radio network node.In addition, In some embodiments, in some wireless communication systems, multiple TP can service a cell.

In some Radio Access Networks, such as in Universal Mobile Communication System (UMTS), multiple TP/ radio nets Node can be connected to radio network controller (RNC) for example, by land line or microwave.The RNC, otherwise referred to as base station control Device (BSC) processed, such as in gsm, can supervise and coordinate the various activities of multiple wireless network nodes connected to it.GSM It is the abbreviation of global system for mobile communications (former: mobile expert group).

In third generation partner program (3GPP) long term evolution (LTE)/advanced LTE, wireless network node (can be with Refer to eNodeBs or eNBs) one or more core nets, such as wireless access gateway can be connected to by gateway.

Following wireless communication system must face the demand of higher aggregated data rate, while again can be to many concurrent User and application provide reliable communication.This high data rate is able to by increasingly effectively utilizing the physical resource of channel It realizes.

Consider a kind of wireless communication system, wherein coverage is multiple as interacting with UEs present in the region The network of TP or wireless network node is covered, to carry out communication and coordination of tasks.This network is commonly referred to as institute above The RAN stated.

Each UE can be interacted with one or more TP, and vice versa.Herein, the uni-directional wireless chain from TP to UEs Road is properly termed as downlink (DL), downstream links or forward link, and the unidirectional wireless link from UE to TP is properly termed as Uplink (UL), upstream link or reverse link.

Under frequency division duplex (FDD) mode, DL and UL channel uses different carrier frequencies.In time division duplex (TDD) mould Under formula, the same carrier frequency of DL and UL Channel Sharing, but distribute different time slots.In order to avoid uplink and downlink transfer Between interference, on the frequency band being kept completely separate use FDD mode.In TDD, in identical frequency band but in different time intervals Send uplink and downlink flow.Therefore, the transmission of uplink and downlink flow is separated from each other, in the time dimension of TDD transmission, Protective time slot (GP) may be had between uplink and downlink transmission.In order to avoid the interference between uplink and downlink, For the wireless network node and/or UE in the same area, uplink in different community between wireless network node and UE and under Row transmission can snap to common time base by the method for synchronization, and use identical resource to uplink and downlink Distribution.

In general, the radio channel from TP to UE and from UE to TP can be caused characterized by different propagation conditions Different degrees of channel quality (CQ).In the fdd mode, each UE independently assesses the CQ of its inbound DL channel and is believed by UL The channel quality information so obtained (CQI) is reported to TP in road.The CQ of UL is assessed and reported using similar mechanism.It is this CQI assessment and reporting techniques are also used under tdd mode sometimes.

Optionally, in tdd mode, due to the reciprocity property of wireless channel, it can be assumed that, from TP to UE and from UE to The radio channel of TP has same propagation condition.Therefore, UE and TP can independently assess the CQ of inbound channel and utilize this One information adapts to the channel condition of outbound channel.

The form that information tissue is stream of exchanging between UE and TP.Each stream carries a series of messages for being used for same UE. Message is coded independently and modulates before being transmitted.Rate-matched (RM) block of channel encoder output end produces channel encoder Raw code block is adapted with the quantity for the time-frequency resource elements that can be transmitted.The scheme of Fig. 1 shows the coding of infomational message And modulated process.

In order to provide suitable level error protection, select encoder, rate-matched and modulator parameter as TP-UE chain The function of the CQ of road.It is responsible for executing this TP entity selected being scheduler.For given UE-TP channel quality, scheduling Most suitable type of code required for device selects, rate and order of modulation, to be mentioned when guaranteeing the data rate needed for providing For enough error protection grades.

Multiple users that multiple access (MA) scheme makes it desirable to independently transmit its information flow can access shared channel simultaneously. In order to avoid the interference between user or other it will lead to that reliability reduces or the degradation of performance decline, MA are needed using appropriate Coordination technique.

Frequency division multiple access (FDMA), time division multiple acess (TDMA), space division multiple access (SDMA) and CDMA (CDMA) etc. pass System MA mode relies on different types of channel resource allocation to avoid interference is generated, for example, passing through frequency, time, space and volume Code.

Widely used orthogonal frequency division multiplexing (OFDM) modulation technique is allowing to distribute to one group of different data streams just Hand over (that is, independent) time-frequency resource elements available, so as to cause so-called orthogonal frequency-time multiple access (OFDMA) scheme.

In mathematical term, it may be said that make customer traffic empty in the vector of transmission signal by these technological means Between in be orthogonal.

In the wireless communication system of high density user, it can be found that the propagation of multiple groups of users in a coverage Condition is similar.In these cases, all user feedbacks are overlapped in group to the CQI value of RAN.Therefore, RAN can be according to certainly The DL CQ of body is grouped user.Using identical type of code, rate and modulation parameter value to sending in same group The message of user encode.

Since UE is more and more and demand to single user (per-user) data rate increasingly increases, following is wireless Cellular system has to increase aggregated data rate.

Using MA scheme so that multiple users access shared large capacity channel simultaneously and are possibly realized.The main target of MA scheme It is to realize highest possible aggregated data rate or spectrum efficiency, while providing same level error protection for all streams.

One problem of orthogonal multiplexing scheme (FDMA, TDMA, orthogonal CDMA) is that they are usually in spectrum efficiency Aspect is not optimal.Very orthogonality is design defect, and the low complex degree of the receiver usually shown by it is led It causes.

A kind of idea of hierarchical modulation has been suggested, and has been applied in picture coding and transmission of video.Tool Body, it is used for the terrestrial broadcasting of digital coded video stream using layering QAM modulation in DVB-T standard.The master of these schemes Syllabus is to use non-uniform error defencive function in open loop broadcast system while sending multiple data flows.In DVB-T standard In, high priority flows and low priority flows the two streams are multiplexed into a modulated signal.Specifically, the high priority Stream is characterized by the high reliability bit in constellation, and the low priority flows are characterized by the low reliability bits in constellation.

3GPP2 standard defines a kind of transmission mode based on hierarchical modulation in a similar way, wherein fundamental modulation layer It is overlapped with so-called enhancement layer and forms high-order constellation.Here, the purpose of enhancement layer is to channel condition good enough User provides the service with enhancing quality, and provides lower service quality to the user for only capableing of decoded base layer.

Using the feature of hierarchical modulation, so as to using opportunistic scheduling come in scheduled transmission system while two optimal users Transmission.In order to determine how to divide total available transmission rate for selected multiple users, a kind of " bit distributor is designed (Bit assigner) " block.Protection level caused by being distributed by bit is in most cases unequal.In addition, described " bit distributor " block does not change over time, that is, static.

Superposition modulated can be obtained by the multiple modulated signals of linear combination.The binary marks of gained constellation are to pass through What the linear combination obtained, and cannot be improved in the case where not changing modulation system.

Therefore, when being communicated in multiple access environments, there is room for improvement.

Summary of the invention

Therefore, it is an object of the invention to eliminate at least partly above-mentioned disadvantage, and improve the performance in wireless communication system.

This and other purposes are realized by the feature of accompanying independent claim.Based on dependent claims, explanation Book and Figure of description can get further form of implementation.

According in a first aspect, providing a kind of method for being used for transmitter within a wireless communication network.The method is directed to Multiplexed data stream in multiple access environments.The described method includes: sending data in multiple data flows, the data are waited for by extremely A few receiver is to be received.The method also includes: obtain channel quality estimation.In addition, the method also includes: based on institute The channel quality estimation for stating acquisition selects multiple data flows.Furthermore, which comprises the channel quality based on the acquisition is estimated Meter, determines the modulation scheme of the selected data flow.In addition, the method also includes: formation can include all numbers It is mapped according to the binary marks of the bit of stream, and by each bit in the label with selected data flow.Institute State method further include: multiple bits are collected according to described be mapping through from all data flows, determine the binary system of the formation The value of label.Further, the method also includes: in the modulation scheme of the determination, select according to the two of the determination The constellation point of system label label.In addition, the method also includes: it is sent in time-frequency resource elements and characterizes the selected star The data of seat point.

In the first possible implementation according to first aspect the method, the mapping is dynamically executed, is made Include at least two mark spaces multiple mark spaces period in the formation binary marks in each bit The number for being mapped to each selected data flow is similar.It is thus possible to realize selectively the mistake in data flow protect It is similar to protect rank.

According to first aspect the method or according to the first possible implementation of first aspect the method, In second of possible implementation, the mapping is periodically carried out, to realize in the week including at least two mark spaces Level error protection in phase in the selectable data flow of institute is similar.Therefore, it by being mapped described in periodic cycle, can use Any displacement order of bitmap index constitutes binary marks.

In the third possible implementation according to first aspect the method or according to first aspect the method Aforementioned any possible implementation in, the channel quality estimation of the acquisition is related to referring indirectly to the channel of data flow； And when the difference between received each channel quality estimation is less than threshold value, data flow is selected.

In the 4th kind of possible implementation according to first aspect the method or according to first aspect the method Aforementioned any possible implementation in, select the first data flow and the second data flow.Moreover, the modulation methods of the determination Case is the difference of the binary marks level error protection more multiple and different than providing, wherein each different mistake is protected Protecting rank includes even number of bits in the binary marks of the formation, wherein in each odd number symbols interval, for each Protection level: the first half bit is mapped with first data flow, and the second half bit is flowed into second data Row mapping, and in each even number symbols interval, the first half bit is mapped with second data flow, described Second half bit is mapped with first data flow.

In the 5th kind of possible implementation according to first aspect the method or according to first aspect the method Aforementioned any possible implementation in, select Z >=K numerous available data streams in K data flow.In addition, passing through From each collection m in the selected K data flow₀A bit forms the binary marks, formation length m₀K ratio Special binary marks.In addition, the modulation scheme of the determination includes havingThe high-order expanding constellation of a symbol.Moreover, So that there is the K data flow mode of similar level error protection to form the binary marks.

In the 6th kind of possible implementation according to first aspect the method or according to first aspect the method Aforementioned any possible implementation in, the transmitter includes transfer point TP, and wherein the transmission of data is in downlink It is middle progress and to include by least one user equipment (UE) receiver receive.

In the 7th kind of possible implementation according to first aspect the method or according to first aspect the method The 6th kind of possible implementation, the transmitter includes user equipment (UE), and wherein the transmission of data is in same transmitting line Uplink in carry out and to include by least one transfer point TP receiver receive.

In the 8th kind of possible implementation according to first aspect the method or according to first aspect the method Aforementioned any possible implementation in, the transmitter for operating in tdd mode, estimate by the acquisition channel quality The movement of meter includes the signal received on reverse link from the receiver and the channel quality for estimating received signal.

In the 9th kind of possible implementation according to first aspect the method or according to first aspect the method Aforementioned any possible implementation in, the transmitter under fdd mode or tdd mode for operating, the acquisition The movement of channel quality estimation includes receiving the channel quality estimation from the receiver.

In second aspect, a kind of transmitter for data transmission within a wireless communication network is provided, wherein the hair Send device for the multiplexed data stream in multiple access access environment.The transmitter includes: transmitting line, in multiple data Data are sent on stream, the data wait for being received by least one receiver, and are also used to the transmission table in time-frequency resource elements Levy the data of constellation point.In addition, the transmitter further include: circuit is received, for obtaining channel quality estimation.In addition, described Transmitter further include: processor selects multiple data flows for the channel quality estimation based on the acquisition；Be also used to based on The channel quality estimation of the selected associated acquisition of data flow, determines the modulation of the selected data flow Scheme.In addition, be also used to be formed can be comprising the binary marks of the bit of all data flows, and by the mark for the processor Each bit in note is mapped with selected data flow.In addition, the processor is also used to be led to according to the mapping It crosses from the data flow and collects multiple bits, determine the value of the binary marks of the formation.In addition, the processor is into one Step is also used in the modulation scheme of the determination, selects the constellation point marked according to the binary marks of the determination.

In the first possible implementation of the second aspect, the processor is also used to dynamically execute described Mapping, so that each bit is mapped in the binary marks of the formation within the period for including at least two mark spaces The number of each selected data flow is similar.

In second of possible implementation of the second aspect or the first possible reality of the second aspect In existing mode, the processor can be also used for periodically carrying out the mapping, to realize including at least two intersymbols Every period in level error protection in the selected data flow it is similar.

In the third possible implementation of the second aspect or aforementioned any possibility of the second aspect Implementation in, the channel quality estimation of the acquisition is related to referring indirectly to the channel of data flow.The processor is also used to Difference between received each channel quality estimation be less than threshold value when, select data flow.

In the 4th kind of possible implementation of the second aspect or aforementioned any possibility of the second aspect Implementation in, the processor is also used to select the first data flow and the second data flow.The processor is also used to determine Modulation scheme, the modulation scheme are the tune of the difference of the binary marks level error protection more multiple and different than providing Scheme processed, wherein each different level error protection includes even number of bits in the binary marks, wherein each In odd number symbols interval, for each protection level: the first half bit is mapped with first data flow, the second half Bit is mapped with second data flow, and in each even number symbols interval, the first half bit with it is described Second data flow is mapped, and the second half bit is mapped with first data flow.

In the 5th kind of possible implementation of the second aspect or aforementioned any possibility of the second aspect Implementation in, the processor is also used to select K data flow in numerous available data streams of Z >=K.In addition, described Processor is also used to by from each collection m in the selected K data flow₀A bit forms the binary marks, Formation length is m₀The binary marks of K bit.In addition, it includes having that the processor, which is also used to determine,A symbol The modulation scheme of high-order expanding constellation；And the processor is also used to so that the K data flow has similar mistake Protected level forms the binary marks otherwise.

In the 6th kind of possible implementation of the second aspect or aforementioned any possibility of the second aspect Implementation in, the transmitter includes transfer point TP, and wherein the transmission of data is carried out in the downlink to by least one The received data of a receiver including user equipment (UE).

In the 7th kind of possible implementation of the second aspect or aforementioned any possibility of the second aspect Implementation in, the transmitter includes user equipment (UE), and wherein the transmission of data carries out in the uplink and to by extremely A few receiver including TP receives.

In the 8th kind of possible implementation of the second aspect or aforementioned any possibility of the second aspect Implementation in, the transmitter comes from the reception for operating in tdd mode, and for receiving on reverse link The signal of device and the channel quality for estimating received signal.

In the 9th kind of possible implementation of the second aspect or aforementioned any possibility of the second aspect Implementation in, the transmitter is also used to by receiving from institute for operating under fdd mode or tdd mode The channel quality estimation for stating receiver obtains the channel quality estimation.

In another implementation of the first aspect and/or the second aspect, a kind of computer program is provided, Including program code, for executing any aforementioned possible implementation according to the first aspect or the first aspect The method, so as in processor of the computer program loads to the transmitter according to the second aspect, For the multiplexed data stream in multiple access access environment.

In another implementation of the first aspect and/or the second aspect, a kind of computer program is provided Product, the computer readable storage medium including being stored thereon with program code, to be connect in a wireless communication system in multiple access Enter multiplexed data stream under environment.Said program code includes the instruction for executing the method included the following steps: more Data are sent in a data flow, the data wait for being received by least one receiver.The method also includes steps: obtaining channel Quality estimation.In addition, the method also includes steps: the channel quality estimation based on the acquisition selects multiple data flows.Separately Outside, the method also includes steps: the tune of the selected data flow is determined based on the channel quality estimation of the acquisition Scheme processed.In addition, the method also includes steps: formation can include the binary marks of the bit of all data flows, and will Each bit in the label is mapped with selected data flow.In addition, the method also includes steps: according to institute It states to be mapping through from all data flows and collects multiple bits, determine the value of the binary marks of the formation.The method is also Comprising steps of selecting the constellation point marked according to the binary marks of the determination in the modulation scheme of the determination.It is described Method further comprises step: the data for characterizing the selected constellation point are sent in time-frequency resource elements.

According to the third aspect, a kind of method of receiver within a wireless communication network is provided, in multiple access access environment Middle at least one multiplexed data stream of reception.It is sent the described method includes: being received at least one data flow by transmitter Data.In addition, the method also includes: channel quality based on estimation or the configured transmission received from the transmitter letter Information is enabled, determines the modulation scheme of the received data flow.The method also includes: it receives in time-frequency resource elements Characterize the data of constellation point.Furthermore, which comprises by determine correspond to the constellation point binary marks in which Bit is associated with the data flow, carries out demapping to the received data.

In the first possible implementation of the third aspect, the receiver operates in tdd mode.

In second of possible implementation of the third aspect or aforementioned any possibility of the third aspect Implementation in, the receiver operates under fdd mode or tdd mode, wherein the method also includes: estimation with it is described The related channel quality of the received associated channel of data flow.Furthermore, which comprises send the channel matter of the estimation Amount, the channel quality of the estimation wait for being received by the transmitter.

In the third possible implementation of the third aspect or aforementioned any possibility of the third aspect Implementation in, the receiver includes UE；It is described receive by including TP transmitter send data in the downlink It carries out.

In the 4th kind of possible implementation of the third aspect or aforementioned any possibility of the third aspect Implementation in, the receiver includes TP；It is described receive by including UE transmitter send data in the uplink It carries out.

According to fourth aspect, the receiver in a kind of cordless communication network is provided, for connecing at least one data flow The data sent by transmitter are received, and are also used to receive the data of characterization constellation point in time-frequency resource elements.The reception Device further include: processor for determining the modulation scheme of received data stream, and is also used to correspond to by determination Which bit is associated with the data flow in the binary marks of the constellation point, carries out solution to the received data and reflects It penetrates.

In the first possible implementation of the fourth aspect, the receiver for operating in tdd mode.

In second of possible implementation of the fourth aspect or aforementioned any possibility of the fourth aspect Implementation in, the receiver under fdd mode or tdd mode for operating.The processor is also used to estimate and institute The related channel quality of the received associated channel of data flow.In addition, the receiver further include: transmitting line, for sending out The channel quality of the estimation is sent, the channel quality of the estimation waits for being received by the transmitter.

In the third possible implementation of the fourth aspect or aforementioned any possibility of the fourth aspect Implementation in, the receiver includes UE；The reception of the data sent by the transmitter including TP is in downlink Middle progress.

In the 4th kind of possible implementation of the fourth aspect or aforementioned any possibility of the fourth aspect Implementation in, the receiver includes TP；The reception of the data sent by the transmitter including UE is in uplink Middle progress.

In the alternatively possible implementation of the third aspect and/or the fourth aspect, a kind of calculating is provided Machine program, including for executing according to any possible implementation of the third aspect or the third aspect Method program code, so as in the computer program loads to according to the fourth aspect or the fourth aspect When the processor of receiver described in any possible implementation, it is multiple that at least one multichannel is received in multiple access access environment Use data flow.

In the possible implementation of another of the third aspect and/or the fourth aspect, a kind of calculating is provided Machine program product, the computer readable storage medium including being stored thereon with program code, to exist in a wireless communication system At least one multiplexed data stream is received under multiple access access environment.Said program code includes including the following steps for executing The method according to any possible implementation of the third aspect or the third aspect instruction: extremely The data sent by transmitter are received in a few data flow.The method also includes steps: channel quality based on estimation or The transmission parameter signaling information received from the transmitter determines the modulation scheme of the received data flow.In addition, The method also includes steps: the data of characterization constellation point are received in time-frequency resource elements.The method also includes steps: logical It crosses and determines which bit is associated with the data flow in the binary marks for corresponding to the constellation point, to the received number According to progress demapping.

Due to various aspects described herein, it is possible to provide heavily loaded multiple access schemes, plurality of independent number Same time-frequency resource elements are combined to according to stream, in the case where not requiring signal bandwidth while sending multiplexed data stream, and The same or similar protection level is provided for transmitted data flow.Thus, it is possible to which the data increased in wireless communication system pass Defeated rate, without extending signal bandwidth and data flow not being made to show protection level not etc..Therefore, wireless communication system Performance is improved.

By the following detailed description, other purposes, advantage and the novel feature of various aspects of the present invention will become aobvious and easy See.

Detailed description of the invention

Various embodiments are explained in more detail in conjunction with Figure of description, in which:

Fig. 1 shows message coding according to prior art and modulation.

Fig. 2 is to show the block diagram of wireless communication system in accordance with some embodiments.

Fig. 3 A is to show the block diagram of transmitter in accordance with some embodiments.

Fig. 3 B is to show the block diagram of receiver in accordance with some embodiments.

Fig. 4 A shows constellation and stream-label mapping example with binary marks.

Fig. 4 B shows the function according to the information of an exemplary binary system channel as signal-to-noise ratio in particular constellation.

Fig. 4 C shows constellation and stream-label mapping example with binary marks.

Fig. 4 D shows the function according to the information of an exemplary binary system channel as signal-to-noise ratio in particular constellation.

Fig. 4 E shows constellation and stream-label mapping example with binary marks.

Fig. 4 F shows the function according to the information of an exemplary binary system channel as signal-to-noise ratio in particular constellation.

Fig. 4 G shows the function according to the information of an exemplary binary system channel as signal-to-noise ratio in particular constellation.

The corresponding signal set that Fig. 5 A shows the constellation with binary marks and divided according to specific bit.

The corresponding signal set that Fig. 5 B shows the constellation with binary marks and divided according to specific bit.

The corresponding signal set that Fig. 5 C shows the constellation with binary marks and divided according to specific bit.

The corresponding signal set that Fig. 5 D shows the constellation with binary marks and divided according to specific bit.

Fig. 6 shows the dynamic stream according to an embodiment-label mapping.

Fig. 7 is to show the flow chart of the method for the transmitter according to an embodiment.

Fig. 8 is to show the block diagram of the transmitter according to an embodiment.

Fig. 9 is to show the flow chart of the method for the receiver according to an embodiment.

Figure 10 is to show the block diagram of the receiver according to an embodiment.

Specific embodiment

The embodiment of the present invention described herein is defined as the transmitter that can implement in the following embodiments, transmitter In method, the method in receiver and receiver.However, these embodiments can carry out illustration in many different forms And realize, however it is not limited to embodiments described herein；More precisely, thesing embodiments are provided so that the disclosure It is comprehensively and complete.

By the detailed description below in conjunction with attached drawing, other object and feature may also become obvious.However, it should be understood that The design of attached drawing is not intended as the restriction of the range to embodiment disclosed herein merely for the sake of example purpose, range Restriction can refer to appended claims.In addition, unless otherwise indicated, attached drawing is not necessarily been drawn to scale, they are only used To conceptually illustrate structure and step described herein.

Fig. 2 is the schematic diagram of wireless communication system 100 comprising communicates first-class 130-1 simultaneously with the first receiver 120-1 The transmitter 110 of second 130-2 is communicated with second receiver 120-2.

For example, the wireless communication system 100 can be at least partially based on wireless access technology, for example, 3GPP LTE, advanced LTE, evolved universal terrestrial wireless access network (E-UTRAN), Universal Mobile Communication System (UMTS), the whole world are mobile logical Letter system (former: mobile expert group) (GSM)/enhanced data rates for gsm evolution (GSM/EDGE), wideband code division multiple access (WCDMA), time division multiple acess (TDMA) network, frequency division multiple access (FDMA) network, orthogonal FDMA (OFDMA) network, Single Carrier Frequency Division Multiple Access (SC-FDMA) network, World Interoperability for Microwave Access, WiMax (WiMax) or Ultra-Mobile Broadband (UMB), high-speed packet access (HSPA) Evolved universal terrestrial wireless access (E-UTRA), general land wireless access (UTRA), GSM EDGE Radio Access Network (GERAN) and 3GPP2CDMA technology is, for example, CDMA20001x RTT and high speed packet data (HRPD), is only listed herein Several selections.In the technical scope of present disclosure, statement " cordless communication network ", " wireless communication system " and/or " cellular communication system " also may be used interchangeably sometimes.In addition, cordless communication network 100 may include according to different embodiments Cellular network or non-cellular network.

According to different embodiments, wireless communication system 100 can be used for frequency division duplex (FDD) and/or time division duplex (TDD) communication in environment.

Exemplary purpose shown in Fig. 2 is simplified summary wireless communication system 100 and related method and node, example Such as, transmitter 110 described herein, receiver 120 and related function.The method and wireless communication system 100 are described in the advanced LTE environment of 3GPP LTE/ consequently as non-limiting example, but disclosed method and wireless The embodiment of communication system 100 can be based on another access technology, for example, above-mentioned any one enumerated.Therefore, although Embodiment of the present invention can be based on, and be described using the term of 3GPP LTE system, but be not restricted to that 3GPP LTE, advanced LTE etc..

According to some embodiments, transmitter 110 can be used for downlink transmission, and wirelessly connect depending on used Enter technology and/or term, may be respectively referred to as: for example, transfer point (TP), base station, NodeB, evolved Node B (eNB or ENodeB), base transceiver station, access point base station, base station router, radio base station (RBS), micro-base station, femto base station (pico base station), femto base station (femto base station), family eNodeB, sensor, beacon are set Standby, relay node, repeater or any other network node for being communicated with receiver 120 by wireless interface.

According to different embodiments and different lexical representations, receiver 120 can be characterized accordingly by: for example, user Equipment (UE), wireless communication terminal, mobile cellular telephone, personal digital assistant (PDA), wireless platform, movement station, plate electricity Brain, portable communication device, portable computer, computer, wireless terminal, relay node, mobile relay as trunking Equipment, subscriber terminal equipment (CPE), fixed wireless access (FWA) node or any other type for transmitter 110 into The equipment of row wireless communication.

However, according to some embodiments, situation is likely to opposite, so that transmitter 110 is possibly used for uplink Transmission may be referred to as and according to different embodiments and different lexical representations: for example, user equipment (UE), wireless Communication terminal, mobile cellular telephone, personal digital assistant (PDA), wireless platform, movement station, tablet computer, portable communications are set Standby, portable computer, the wireless terminal as trunking, relay node, mobile relay equipment, subscriber terminal equipment (CPE), the equipment for being carried out wireless communication with receiver 120 of fixed wireless access (FWA) node or any other type.

Therefore, according to some such embodiments, used wireless access technology and/or term, receiver are depended on 120 can be characterized accordingly by: for example, transfer point (TP), base station, NodeB, evolved Node Bs (eNB or eNodeB), base Stand transceiver station, access point base station, base station router, radio base station (RBS), micro-base station, femto base station (pico base Station), femto base station (femto base station), family eNodeB, sensor, beacon equipment, relay node, Repeater or any other network node for being communicated with transmitter 110 by wireless interface.

It should be noted that a transmitter 110 of the characterization of the transfer point as shown in Fig. 2 and two receivers of corresponding UE characterization The schematic network setup that 120-1,120-2 are constituted is to be considered only as the non-limiting example of embodiment.The wireless communication system System 100 may include any other quantity and/or combined transmitter 110 and/or receiver 120.Thus, multiple receivers 120 and another configuration of transmitter 110 can be related in some embodiments.

Therefore, "one" or " one/one kind " receiver 120 and/or transmitter 110 refer to according to some herein respectively The multiple receivers 120 and/or transmitter 110 that embodiment may relate to.

Method disclosed herein is related to non-orthogonal multiple access scheme, is properly termed as the access of constellation extension multiple access (Constellation-Expansion Multiple Access, CEMA), wherein can use the modulation of higher-order will be more A (coding or uncoded) combination of independent data flow is on one group of running time-frequency resource, to realize higher aggregated data speed Rate.

If can develop can be realized higher aggregated spectrum efficiency and controls the increased non-orthogonal scheme of complexity, this It will be very useful.Perhaps, hierarchical modulation and superposition modulated can become coming transmission technology, and which form exploitations to change Into the starting point of method.

Hierarchical nature is not presented in presently disclosed embodiment.In fact, according to this method, it can be based on the CQI value of stream Convection current is grouped, and is sent in one group of given running time-frequency resource with same protection level.Therefore, in some implementations In example, layering can not be established between streams.

On the contrary, some embodiments disclosed herein can be realized using dynamic stream-label mapping for all streams Equal or similar error protection, while robustness feature is provided for channel and other hardware damages.

However, some embodiments disclosed herein can be using the high-order constellation of local form.Star can arbitrarily be selected The binary marks of seat, to improve the performance of system.

Therefore, the multiplexing side under a kind of multi-user downlink scene with channel-quality feedback disclosed herein Method.In some embodiments, the method may include Z downstream data flows of transmitted in parallel, wherein the method is using single Time-frequency resource elements, and the method embodiment may include step: it is based on channel quality feedback information, from numerous Z (Z >=K) K data flow is selected in available data streams.In addition, certain methods embodiment may include: from each K data flow Middle collection m₀A bit, formation length m₀The compound binary marks of K bit.In addition, the method embodiment can also wrap It includes: what is marked by the compound binary marksConstellation point is selected in the high-order expanding constellation of a symbol.In addition, In some embodiments, the method may include: the selected constellation point is sent in time-frequency resource elements.According to some realities Example is applied, K data flow is selected, so that selected K data flow is associated with identical or similar channel quality stream, In, can using so that the K data flow have similar error protection by the way of form the compound binary marks.

Embodiment disclosed herein can be applied to the downlink of wireless communication system 100.The disclosed side CEMA Case may include heavily loaded multiple access schemes, wherein multiple independent data flows are combined on identical time-frequency resource elements.It can be with It is combined by using the modulation of higher order.Then, it in the case where not requiring extension signal bandwidth, is provided in identical time-frequency Multiple data flows of multiplexing are sent on source simultaneously.According to some embodiments, heavy duty be so that multiple data flows according to can multichannel it is multiple The example on identical time-frequency resource elements is used, so as to cause in the case where not requiring signal bandwidth to extend, data are fast Rate is increased.

According to some embodiments, when transmitting individual traffic 130, constellation χ can may be belonged to using signal₀Modulation Coded-bit is sent, the constellation may include M₀A sophisticated signal.Its order of modulation can be defined as m₀=log2M₀, and Its may bit number associated with each modulation symbol it is consistent.χ₀In each symbol can be with binary marksIt is associated.Hereinafter, χ₀Referred to as base case constellation (base constel1ation), m₀It is properly termed as Basic order (base order).

Using the modulation of higher order, K stream can be combined and utilize identical running time-frequency resource while sending, therefore Longer transmission time or signal bandwidth are not required.In order to keep the encoded information of all K streams consistent, without increasing running time-frequency resource Quantity, in some embodiments, can be set order be m=Km₀Larger constellation.Therefore, the size of new constellation may become Are as follows:

And it may be considered base case constellation χ₀It is extended to the result of bigger constellation χ (expanding constellation).The signal of χ can With with binary vector (b₁..., b_m) ∈ { 0,1 } m is marked.

In figure 3 a, the basic scheme of the CEMA transmitter 110 according to an embodiment is shown.Selection block is flowed using scheduling The CQI information that device provides, can select have same or similar CQI from the set of all available Z >=K messages of input K message.Later, can each message to K message carry out absolute coding, and application rate matches.Dynamic stream-mark Remember that mapping block calculates function of the sign flag of constellation point as coded-bit.Finally, symbol can be used in constellation point selection block Labelled notation selects corresponding symbol from expanding constellation χ, and generates corresponding modulated signal.

Constellation symbol selection block shown in Fig. 3 A can generate a series of complexity selected from expanding constellation χ according to sign flag Modulation symbol.Disclosed CEMA scheme will not constellation composition any restrictions.

The binary marks of constellation point are executed generally according to Gray regular (Gray rule), so as to cause with properties: with The smallest associated binary marks of constellation point of Euclidean distance (Euclidean distance) are to there is only a bits Difference.

In figure 3b, the scheme of k-th of 120 1 embodiment of CEMA receiver is shown.Detector block can be with calculation code Bit (soft or hard) valuation, and it is fed back to label-stream demapping block.The demapping block can be calculated to be received for k-th The coded-bit valuation of device 120, and reverse rate matching and channel decoder block, the reverse rate can be fed back to With information bit valuation may finally be calculated with channel decoder block.

Fig. 4 A shows a kind of one example of constellation scheme 400 and stream-label mapping of 16PSK (phase-shift keying (PSK)), the star Seat scheme 400 has and the associated constellation point 410 of corresponding binary marks 420.In the non-limiting example, binary system Label 420 includes four bits b1, b2, b3, b4.In other embodiments, it may include any amount in binary marks 420 N bit, wherein 0 < n < ∞.In addition, may relate to any amount K stream 130-1,130-2 in some embodiments, wherein 0 < K < ∞.

Shown constellation 400 is one example of passive flow-label mapping: the rightmost of binary marks 420 two Bit distributes to stream 1 130-1 (normal), and two bits of Far Left of binary marks distribute to stream 2130-2 (raised).

Fig. 4 B shows the information that the binary system channel obtained is decomposed by 16PSK.

The common feature of most of modulation schemes (for example, in 16PSK shown in Fig. 4 A) is, different bit b1, b2, B3, b4 convey different amounts of information, therefore cause level error protection different.This effect will be further combined with Fig. 5 A- Fig. 5 D It is described in detail.

There are the protections of three kinds of different stages in 16PSK modulation scheme 400.This feature is shown in Fig. 4 B, wherein by It is for signal-to-noise ratio that 16PSK, which decomposes information content entrained by each of described four binary system channels obtained, The curve graph of (SNR or S/N).This quantity is referred to here as each bit b1, b2, b3, the protection of b4 in binary marks 420 Rank.

Snr measurement used by herein can have with any ratio between desired signal grade and background noise level The similar ratio closed is replaced, for example, Signal Interference and Noise Ratio (SINR), signal noise interference ratio (SNIR), signal interference It is received (SINAD) than (SIR), letter, signal quantization noise ratio (SQNR), carrier-to-noise ratio (C/N), jamtosignal (NSR) or any class As measure.

Fig. 4 C shows the 16-APSK constellation 400 with binary marks specified in DVB-S2 standard.

For example, using Amplitude phase shift keying (APSK) type constellation 400 in DVB-S2 standard.It is multiple in these constellations 400 Miscellaneous symbol (point) is arranged on multiple concentric rings.In the case that one ring has a symbol at equal intervals of M, M-PSK is caused to modulate, Arbitrarily lift several examples, such as 16PSK or 32PSK.

As shown in Figure 4 D, there are two different protection levels in 16APSK constellation 400.

The shape for the APSK modulation scheme 400 that Fig. 4 A and Fig. 4 C are respectively shown in may result in low peak-to-average power ratio (PAPR), the feature for being for the wireless communication system of power limited 100.It is anticipated that this feature for not The wireless system 100 for being deployed with a large amount of low power access points come is significantly.

Fig. 4 E shows an embodiment and stream-label of 16QAM (quadrature amplitude modulation) constellation 400 with Gray's label One example of mapping.

It, may be especially significant since square M-QAM modulation constellation 400 is widely adopted.Square M-QAM modulation constellation 400 Size can be M=2^m, wherein m is any even positive integers.In general, M-QAM modulation scheme 400 is a series of complex point set It closes, is defined as χ={ ± si ± js_Q}.Here,s_I, s_QFor any odd positive integer multiple of≤M.Fig. 4 E shows band The 16-QAM constellation 400 and possible stream-label mapping scheme for thering is Gray to mark.Rightmost two ratios of binary marks 420 Special b1, b2 distribute to stream 1130-1 (normal), and Far Left two bits b3, b4 of binary marks 420 distribute to stream 2130-2 (raised).

Order is m=log₂There are m/2 different protection levels in the square M-QAM modulation constellation 400 of M.Fig. 4 F is directed to 16-QAM shows this feature, and Fig. 4 G shows this feature for 256-QAM, wherein decomposing the m obtained two by QAM The entrained information content of each of system input channel is the curve graph for SNR.The SNR value fixed for one, exists M/2 unequal loss protection rank.

How 4 bits that Fig. 5 A- Fig. 5 D shows label 420 characterize in the constellation 400 shown in Fig. 4 E.In the non-limit In property example processed, constellation 400 includes 16QAM constellation.It intuitively, is i=1,2 binary channel by corresponding to bit position The information of transmission is different from being i=3, the information of 4 transmission by bit.Depending on to which bit b1, b2, b3, b4 progress Assessment, Euclidean distance is different, and the performance of receiver would also vary from.

The constellation point 410 for being 1011 for 420 intermediate value of binary marks, if transmission distortion, thus 120 mistake of receiver Ground be interpreted as characterization value be 1000 constellation point 410, two left side bit b3, b4 values having the same, respectively 1 and 0.So And two rightmost bits, original value is respectively 1 and 1, is erroneously interpreted as 0 and 0.

Therefore, some constellation points 410 are grouped, so that constellation point 410 is caused mistakenly to be understood in transmission process It will not influence the understanding of the bit for positions some in label 420 for the lower interference of another adjacent constellation point 410.However, The bits some in this way such as b1=1 shown in all b2=1 and Fig. 5 D as shown in Figure 5 C are not grouped together in constellation 400, this is just It is that lesser interference may cause the reason of these bits of receiver-side error understanding.

Fig. 6 shows dynamic stream-label mapping block.In order to make 130 and all parameter combination m of all streams₀Phase is obtained with K Deng or approximately equal protection level, suitable labeling method can be designed.

Dynamic stream shown in Fig. 6-label mapping block changes according to symbol to intersymbol, predetermined period is Q symbol It maps the m of each stream 130₀A coded-bit is associated with m bit of sign flag 420.

Dynamic stream-label mapping can pass through the displacement set Π having a size of m_q, q=1 ..., Q (wherein Q > 1) are carried out It is specified.In each mark space, using different displacements.After Q mark space, first displacement can be reused, And the order can be repeated.

The vector of the unique integral in [1, m] can be utilized to carry out definition substitution Π with following explanation_q: i → Π_{Q, i}: input I-th of input element to substitution block is moved to position Π in its output end_{Q, i}.It is then possible to specified using m × Q mapping matrix A whole set of Q displacement, wherein the corresponding displacement Π of q column_q。

In order to avoid ambiguity, it is possible to specify, it is input to stream-label mapping bit and is sent into following substitution block, referring to Fig. 6: β_μ=b_{I, j}, wherein indexAnd index j=1+ (μ -1) mod m₀.Here, (β₁..., β_m) indicate substitution block Input vector.Amount.

Table 1

Table 1 discloses stream-label mapping that the 16PSK constellation 400 of 130-1,130-2 are flowed with two as shown in Figure 4 A. Therefore, disclosed non-limiting example can correspond to constellation 400 shown in Fig. 4 A.Stream-label maps in this case not It changes in symbol to intersymbol, that is, it is not dynamic, thus its period is Q=1.Gained is shown in table 1 maps square One example of battle array.The example describes the stream-label mappings for not being the method a part, because it is not dynamic.This Outside, it is not all stream 130-1, and 130-2 provides similar error protection.On the contrary, it illustrates with it is quiet according to prior art State maps associated problem.

As can be seen that three kinds of different protection levels are presented (by force, in the SNR fixed for one, 16PSK constellation from Fig. 4 B In, it is weak).Bit b3, b4 of two highly protecteds (strong), which are distributed to, flows 2130-2, and the bit of two weaker hierarchical protection B1, b2 distribute to 1 130-1 of stream.The stream of this static state-label distribution obviously differs in terms of error protection.It can also observe It arrives, equal stream protection can not be obtained by way of static mappings.Instead it is evident that the period is the simple dynamic of Q=2 State, which is mapped as two streams 130-1,130-2, realizes equal protection.As shown in table 2.

Table 2

Table 2 discloses tool and maps there are two 130-1, equal protections stream-label of the 16PSK constellation 400 of 130-2 is flowed.

For 16APSK modulation scheme 400 as shown in Figure 4 C, its protection level is shown in Fig. 4 D, situation very much not phase It is same: to present only two unequal loss protection ranks, it is therefore possible to execute two information flow 130-1,130-2 within the period 1 etc. Conservation is reflected, and is penetrated.

The case where for two stream, similar consideration are also applied for square M-QAM modulation modulation.Fig. 4 E shows 16QAM constellation. As can be seen that two different protection levels are presented in constellation 400 from Fig. 4 F.

Table 3

Table 3 discloses tool as shown in Figure 4 E, and there are two the stream of the 16QAM constellation of stream 130-1,130-2-label mappings.

This mapping clearly leads to unequal loss protection, because all strong bits are allocated to 2 130-2 of stream, and flows 1 130-1 obtains all weak bits.However, it is possible to design the protections such as the another kind as shown in table 4A and/or table 4B mapping.Each One strong bit (bit 3 or bit 4) and a weak bit (bit in illustrated embodiment can be used in stream 130-1,130-2 1 or bit 2).

Table 4A

Table 4A is disclosed according to the tool of an embodiment there are two flowing 130-1, and the equal protections of the 16-QAM constellation of 130-2 are reflected It penetrates.This is a kind of non-dynamic embodiment, is not a part of methods described herein.

Therefore, in some instances it is possible to design the static mappings with equal protections.However, working as additional channel Damage is when taking into account, such as: can be independently actuated against due to I/Q individual interleaving I component and Q component decline and its The depolarising of its light beam and the propagation phenomenons such as hardware damage (in analog portion and A/D conversion stage it is non-linear, I-Q is unbalance, Signal offset etc.), the information characteristic of the modulation scheme considered will differ from Fig. 4 B, Fig. 4 D, reason shown in Fig. 4 F and Fig. 4 G Think characteristic.As a result, this static mappings probably become.

For these reasons, the non-dynamic stream-of the prior art is replaced with the common dynamic mapping ruler in our methods Label mapping can guarantee the quantity of 130-2 and the influence of constellation 400 not by stream 130-1, the protection such as provide, while for upper It states damage and further increases robustness.

Table 4B discloses that there are two the protections such as dynamic of 16-QAM constellation of stream 130-1,130-2 according to the tool of an embodiment Mapping.

Table 4B

The mapping of stream shown in table 1, table 3 and table 4A-label is not dynamic because they not symbol to intersymbol into Row changes.In other words, period Q=1.In general, K stream, which is mapped to the expanding constellation needs with P protection level, to be made With dynamically labeled, that is, the label being changed with the period of Q > 1 in symbol to intersymbol.Therefore, shown in table 1, table 3 and table 4A Passive flow-label mapping be merely to illustrate the prior art mapping the shortcomings that.

On the contrary, disclosing a kind of common dynamic mapping according to embodiment herein, institute is realized for all values of K and m There is the protection level on stream 130-1,130-2 equal.According to an embodiment, the period Q=K of the mapping, and carry out in table 5 It indicates.Here, each the bit b1, b2 ..., bn of expanding constellation are periodically distributed into K stream.Therefore, each stream is total It is enjoyed in transmission time by each level error protection for being 1/K than the ratio provided: being averaged to message transmissions, institute There is stream the protection such as to carry out.

Table 5

Table 5 shows general equal protections mapping.

In some embodiments it can be found that the period Q of protection mapping scheme is waited to be less than K.16-QAM shown in table 4B reflects Penetrating is exactly an example, can be summarized as follows: considering what two information flows were multiplexed on M-QAM type expanding constellation Situation.In such a case, it is possible to observe, given SNR, bit 2i-1 and bit 2i (i=1 ... .m/2) are shown Same level error protection, referring to fig. 4 in G 256-QAM example.Therefore, the bit of odd positions is distributed into a stream The bit of even number position is simultaneously distributed to the protections mappings such as another stream 130-2 realization by 130-1.This table 6 that is mapped in is shown Out, wherein the mapping is extended to Q=2 symbol for these reasons, to generate dynamic stream-label mapping.

Table 6

After displacement, by by binary vector (u₁..., u_m) be converted to integer value to calculate sign flag, as follows:

In addition, some embodiments disclosed herein can be adapted for all Bit Interleaved Coded Modulation transmission systems System, it is possible in conjunction with OFDM and MIMO transmission.

Fig. 7 is to show the flow chart of the embodiment of method 700 of transmitter 110 in wireless communication system 100.The side Method 700 is intended to by providing multiplexed data stream 130-1,130- in dynamic stream-label mapping offer multiple access access environment 2。

In some embodiments, transmitter 110 may include transfer point (TP)；The data transmitted in downlink are by including At least one receiver 120 including user equipment (UE) receives.However, in some embodiments, transmitter 110 may include UE can carry out the transmission of data in the uplink of same transmission circuit, and by least one reception including TP Device 120 receives the data of transmission.

In some embodiments, cordless communication network 100 can be based on third generation partner program long term evolution (3GPP LTE).In some such embodiments, transmitter 110 may include evolution base station (eNodeB).In addition, wireless communication system 100 can be based on FDD or TDD in different embodiments.

In order to properly provide multiplexed data stream 130-1,130-2, the method 700 may include multiple movements 701-708。

However, it should be noted that can be any, partly or entirely described dynamic to execute to be different from the time sequencing of examples cited Make 701-708, according to different embodiments, may be performed simultaneously or the movement is even executed with antipodal sequence 701-708.Moreover, it is noted that according to different embodiments, some movements can be executed with multiple optional ways, it is described this A little optional ways can be executed only in some embodiments, but be not necessarily in all embodiments.The method 700 may include It acts below:

Movement 701

It sends in multiple data flows 130-1,130-2 to by least one received data of receiver 120.It is the multiple Data flow 130-1,130-2 may include such as Z data flow 130-1,130-2, wherein 0 < Z < ∞.One or more data Flowing 130-1,130-2 can be associated with one or more receivers 120.

Movement 702

Obtain channel quality estimation.

In some embodiments, transmitter 110 operates under time division duplex (TDD) mode, channel quality can by The signal from receiver 120 is received on reverse link and estimates the channel quality of received signal to be estimated.

In some other embodiments, transmitter 110 is under frequency division duplex (FDD) mode or time division duplex (TDD) mode Operation, channel quality estimation may include receiving the channel quality estimation from receiver 120.

Channel quality estimation or channel quality information (CQI) can be related to the channel of transmitter 110 and receiver 120 Correlation, and data flow 130-1,130-2 can be directed to indirectly in some embodiments.

Movement 703

The channel quality estimation obtained based on 702 selects K data flow 130-1,130-2, wherein 0≤K≤Z.

In some embodiments, the difference between each channel quality estimation (for example, CQI) obtained when 702 is less than threshold value When, it can choose K data flow 130-1,130-2.The threshold value can be scheduled or configurable.

Movement 704

The channel quality estimation obtained based on 702, can determine 703 selected data flow 130-1,130-2's Modulation scheme 400.

In different embodiments, which may include such as APSK constellation or qam constellation.

Movement 705

Formation can include bit b1, the b2 of all K data flows 130-1,130-2 ..., the binary marks of bn 420, and by each bit and selected 703 data flow 130-1 in the label 420,130-2 is mapped；

Dynamically execute the mapping so that include at least two mark spaces period in the formation binary system Each bit b1, b2 in label 420 ..., bn is mapped in 703 selected K data flows 130-1,130-2 Each number is similar or equal.In some embodiments, it is equal to 703 selected data flows in the quantity n of mark space In the period of the quantity K of 130-1,130-2, each bit b1, b2 in the binary marks 420 of the formation ..., bn It is similar or equal to be mapped to number in each of 703 selected K data flows 130-1,130-2.

The mapping can be periodically carried out, to realize within the period for including at least two mark spaces, such as In some embodiments, it is equal to the period of the quantity K of 703 selected data flows 130-1,130-2 in the quantity n of mark space Interior, the level error protection on 703 selected all stream 130-1,130-2 is similar, for example, in some embodiments, symbol The quantity n at interval is equal to the quantity K of selected 703 data flow 130-1,130-2.

Movement 706

It is mapping through the n bit b1 of collection from all K data flows 130-1,130-2 according to performed, B2 ..., bn determines 705 values for being formed by binary marks 420.Thus, bit b1, b2 ..., the quantity of bn N can be equal to the quantity K of 703 selected data flows 130-1,130-2, that is, n=m0K.

Movement 707

In the modulation scheme 400 determined by 704, the constellation of the label of the binary marks 420 according to determined by 706 is selected Point 410.

Movement 708

The data of 707 selected constellation points 410 of characterization are sent in time-frequency resource elements.

It can choose the first data flow 130-1 and the second data flow 130-2 according to some embodiments, 703.704 determine Modulation scheme 400 can be the binary marks 420 different bit b1, b2 ..., bn shows multiple unequal Level error protection, wherein each non-uniform error protection level may include 705 be formed by binary marks 420 it is even Several bits b1, b2 ..., bn.In addition, in each odd number symbols interval, for each protection level: the first half bit B1 ..., b (n-1) can be mapped with the first data flow 130-1, the second half bit b2 ..., bn can be with It is mapped with the second data flow 130-2, and in each even number symbols interval, the first half bit B1 ..., b (n-1) can be mapped with the second data flow 130-2, the second half bit b2 ..., bn It can be mapped with the first data flow 130-1.

However, in some embodiments, 703 can choose K in numerous available data streams 130-1,130-2 of Z >=K Data flow 130-1,130-2.It can be by from each collection m in 703 selected K data flows 130-1,130-2₀A ratio Special b1, b2 ..., b (m₀) form 705 binary marks 420.It therefore, can be m with formation length₀K bit b1, The binary marks 420 of b2 ..., b (m0K).Modulation scheme 400 determined by 704 may include havingA symbol High-order expanding constellation.In addition, in some embodiments, 705 are formed by binary marks 420 can be so that K data flow There is the mode of similar or equal level error protection to be formed by 130-1,130-2.

Fig. 8 shows the embodiment for the transmitter 110 for including in wireless communication system 100.Transmitter 110 is for executing extremely Small part preceding method acts 701-708, is mapped in multiple access access environment and multiplexes will pass through offer dynamic stream-label Data flow 130-1,130-2.

Cordless communication network 100 can be based on third generation partner program long term evolution (3GPP LTE).Some implementations Transmitter 110 may include in example, such as: the wireless network nodes such as transfer point (TP) or evolution base station (eNodeB). In addition, wireless communication system 100 can be based on FDD or TDD in different embodiments.Receiver 120 can in some embodiments To include user equipment (UE), wherein data transmission carries out in the downlink.

However, in some embodiments, it may be the case that opposite, i.e., transmitter 110 includes UE, wherein the biography of data It is defeated to carry out in the uplink, and by may include at least one receiver of the wireless network nodes such as TP or eNodeB 120 receive.

Therefore, transmitter 110 is used to execute the method 700 according at least partly described movement 701-708.In order to more For the sake of clear, any internal electronic element or other components of transmitter 110 are omitted in Fig. 8, these components are for understanding this It is not essential for embodiment described in text.

Transmitter 110 includes transmitting line 830, for sending in multiple data flows 130-1,130-2 to by least one The received data of a receiver 120, and it is also used to send the data of characterization constellation point 410 in time-frequency resource elements.

In some embodiments, transmitter 110 may include receiving circuit 810, which is used for from least one Channel quality estimation is obtained in a receiver 120, for example, CQI.

According to some embodiments, the reception circuit 810 in transmitter 110 can be used for from receiver 120 or lead to It crosses in any other any entity that wireless interface carries out wireless communication and receives any wireless signal.

Received channel quality estimation can be related with channel from least one receiver 120, therefore in some implementations Data flow 130-1,130-2 is referred indirectly in example.

In addition, transmitter 110 further include: processor 820, for selecting K number based on acquired channel quality estimation According to stream 130-1,130-2.For example, can choose data flow 130-1,130-2 associated with the received channel quality estimation of institute, The received channel quality estimation is more than first threshold, but is no more than second threshold, wherein the second threshold is higher than described the One threshold value.In addition, the processor 820 is also used to based on institute associated with selected K data flow 130-1,130-2 Received channel quality estimation is stated to determine the modulation scheme 400 of selected data flow 130-1,130-2.In addition, institute State processor 820 be also used to be formed can include all K data flows 130-1,130-2 n bit b1, b2, b3 ... .., The binary marks 420 of bn, and each bit in label 420 is reflected with selected data flow 130-1,130-2 It penetrates.In addition, the processor 820, which is also used to be mapping through according to, collects n from all K data flows 130-1,130-2 A bit b1, b2 ..., bn determines the value of the binary marks 420 of the formation.In addition, the processor 820 into one Step is also used in the modulation scheme 400 of the determination, selects the constellation point marked according to the binary marks 420 of the determination 410。

The processor 820 can also further be used to dynamically execute the mapping, so that including at least two Each bit b1, b2 in the binary marks 420 of the formation in the period of mark space ..., bn is mapped to each The number of selected data flow 130-1,130-2 is similar.In some embodiments, the quantity of mark space can be equal to selected The quantity K for data flow 130-1,130-2 selected.

In some embodiments, the processor 820 can be also used for periodically carrying out the mapping, wrapped with realizing The level error protection included in the period of at least two mark spaces in selected K data flow 130-1,130-2 is similar. In some embodiments, the quantity n of mark space can be equal to selected data flow 130-1, the quantity K of 130-2, so that n =K.In some such embodiments, bit b1, b2 ..., the input of bn index can in each mark space with Random order is replaced, and the process then can be repeated.

The processor 820 further can be also used for, for example, difference between received each channel quality estimation When less than threshold value, data flow 130-1,130-2 is selected.The threshold value can be scheduled or configurable in different embodiments 's.

The processor 820 can also be further used for selecting the first data flow 130-1 and the second data flow 130-2.This Outside, the processor 820 is determined for modulation scheme 400, the modulation scheme 400 be the binary marks 420 not With bit b1, b2 ..., bn provides multiple and different level error protections, wherein each different level error protection Including even number of bits b1, b2 ..., bn in the binary marks 420, wherein in each odd number symbols interval, for Each protection level: the first half bit b1 ..., b (n-1) can be mapped with the first data flow 130-1, and second Half bit b2 ..., bn can be mapped with the second data flow 130-2, and at each even number symbols interval In, the first half bit b1 ..., b (n-1) can be mapped with the second data flow 130-2, and described the second half Number bit b2 ..., bn can be mapped with the first data flow 130-1.

The processor 820 may include one or more examples of processing circuit, for example, central processing unit (CPU), Processing unit, processing circuit, processor, specific integrated circuit (ASIC), microprocessor other can illustrate and execute instruction Processing logic.Therefore, statement " processor " used herein can indicate processing circuit comprising for example any, part Or whole above-mentioned cited multiple processing circuits.

The processor 820 is can be also used in some embodiments from numerous available data streams 130-1,130-2 of Z >=K Middle K data flow 130-1,130-2 of selection.Further, the processor 820 can be also used for by from selected K N=m is collected in data flow 130-1,130-2₀K bit b1, b2, b3 ..., bn form binary marks 420, formation length For m₀The binary marks 420 of K bit b1, b2 ..., bn.Further, the processor 820 be determined for include HaveThe modulation scheme 400 of the high-order expanding constellation of a symbol.In addition, the processor 820 can be also used for so that There is K data flow 130-1,130-2 the mode of similar or equal level error protection to form the binary system mark Note 420.

In addition, according to some embodiments, transmitter 110 can also include in some embodiments in transmitter 110 at least One memory 825.Optional memory 825 may include for temporarily or permanently storing the data such as instruction sequence or journey The physical equipment of sequence.According to some embodiments, memory 825 may include integrated circuit, and the integrated circuit includes being based on silicon Transistor.In addition, memory 825 can be volatibility or non-volatile.

It can come together to realize by the related computer program of one or more processors 820 in transmitter 110 and send Pending movement 701-708 in device 110, wherein the computer program includes program code, for executing according to above-mentioned dynamic Make method 700 described in 701-708, to be used for more in processor 820 of the computer program loads to transmitter 110 Multiplexed data stream 130-1,130-2 in the access environment of location.

According to some embodiments, the related computer journey of one or more processors 820 in transmitter 110 can also be passed through Sequence product comes together to realize movement 701-708 pending in transmitter 110, wherein the computer program product includes thereon It is stored with the computer readable storage medium of program code, so as to more in the multiple access access environment in wireless communication system 100 Road multiplexed data flow 130-1,130-2, said program code include the instruction for executing the method 700 included the following steps: 701, it sends in multiple data flows 130-1,130-2 to by least one received data of receiver 120；702, obtain channel Quality estimation；703,702 channel quality estimations based on the acquisition select K data flow 130-1,130-2；704, it is based on 702 channel quality estimations of the acquisition determine the modulation scheme of selected 703K data flow 130-1,130-2 400；705, formation can include bit b1, the b2 of all K data flows 130-1,130-2 ..., the binary system mark of bn Note 420, and each bit in the label 420 is mapped with 703 selected data flows 130-1,130-2；Root According to the described each collection being mapping through from K data flow 130-1,130-2 n bit b1, b2 ..., bn； 706, determine 705 values for being formed by binary marks 420；707, in the modulation scheme 400 determined by 704, select basis The constellation point 410 of the label of binary marks 420 determined by 706；And 708, characterization 707 is sent in time-frequency resource elements The data of selected constellation point 410.

Calculations set forth above machine program product can be provided as this form, that is, data medium load capacity calculation machine program Code, to execute the movement 701- according to some embodiments when computer program code is loaded into processor 820 A part in 708.The data medium can be, for example, hard disk, CD-ROM, memory stick, optical storage apparatus, magnetism Equipment or any other suitable medium are stored, for example the disk or magnetic of machine-readable data can be kept in a manner of non-transitory Band.The computer program product can further be provided as connecting by internet or Intranet on the server and for example Connect the computer program code for being downloaded to transmitter 110.

Fig. 9 is to show the flow chart of the embodiment of method 900 of receiver 120 in wireless communication system 100.The side The purpose of method 900 is the feedback by providing channel quality estimation form to transmitter 110 to receive in multiple access access environment At least one multiplexed data stream 130-1,130-2.

Cordless communication network 100 can be based on 3GPP LTE in some embodiments.Receiver 120 in some embodiments It may include UE, wherein receiver 120 is received in downlink by may include the wireless network nodes such as TP or eNodeB Transmitter 110 send data.In addition, wireless communication system 100 can be based on FDD or TDD in different embodiments.

However, in some embodiments, for example it may be that opposite, i.e., receiver 120 may include TP or such as The wireless network nodes such as eNodeB, wherein carried out data transmission in the uplink by the transmitter 110 that may include UE.

In order to properly receive at least one multiplexing multiplex data stream 130-1,130-2, the method 900 may include more A movement 901-906.

It should be noted that any, partly or entirely movement can be executed to be different from the time sequencing of examples cited 901-906 may be performed simultaneously according to different embodiments or even execute the movement 901- with antipodal sequence 906.Moreover, it is noted that according to different embodiments, some movements can be executed with multiple optional ways, it is described these can It selects mode that can only execute in some embodiments, but is not necessarily in all embodiments.The method 900 may include following Movement:

Movement 901

901 data sent by transmitter 110 are received at least one data flow 130-1,130-2.

Movement 902

The movement can execute in some embodiments, but in not all embodiment.

It can estimate the associated channel quality of channel associated with received 901 data flow 130-1,130-2. In some embodiments, the channel estimation may include letter associated with received 901 data flow 130-1,130-2 The CQI in road.

Movement 903

The movement can execute in some embodiments, but in not all embodiment.

902 channel qualities of estimation are sent, to be received by transmitter 110.The channel quality can with it is described received 901 data flows 130-1,130-2 and/or receiver 120 are associated, so as to be capable of detecting when received channel in transmitter 110 Which data flow 130-1,130-2 quality estimation belongs to.

Movement 904

Channel quality based on estimation or the transmission parameter signaling information received from the transmitter 110, determine 901 institutes The modulation scheme 400 of received data flow 130-1,130-2.

Movement 905

The data of 905 characterization constellation points 410 are received in time-frequency resource elements.The data can be with time-frequency resource elements Form is received.

Movement 906

By the way which bit b1, b2 in the binary marks 420 for corresponding to constellation point 410 determined ..., bn and 901 Received data stream 130-1,130-2 are associated, carry out demapping to 905 received datas.

Figure 10 shows the embodiment for the receiver 120 that wireless communication system 100 includes.The receiver 120 is for holding Row at least partly preceding method acts 901-906, to be estimated in some embodiments by providing channel quality to transmitter 110 The feedback of meter form is to receive at least one multiplexed data stream 130-1,130-2 in multiple access access environment.

Cordless communication network 100 can be based on 3GPP LTE in some embodiments.Receiver 120 in some embodiments It may include UE, wherein receiver 120 is received in downlink by may include the wireless networks section such as TP or eNodeB The data that the transmitter 110 of point is sent.In addition, wireless communication system 100 can be based on FDD or TDD in different embodiments.

However, in some embodiments, for example it may be that opposite, i.e., receiver 120 may include TP or such as The wireless network nodes such as eNodeB, wherein carried out data transmission in the uplink by the transmitter 110 that may include UE.

Therefore, receiver 120 is used to execute the method 900 according at least partly described movement 901-906.In order to more For the sake of clear, any internal electronic element or other components of receiver 120 are omitted in Figure 10, these components are for understanding this It is not essential for embodiment described in text.

Receiver 120 includes: to receive circuit 1010, for receiving at least one data flow 130-1,130-2 by sending out The data for sending device 110 to send further are also used to receive the data of characterization constellation point 410 in time-frequency resource elements.

Receiver 120 further include: processor 1020, for determining the tune of received data stream 130-1,130-2 Scheme 400 processed.In addition, the processor 1020 be also used to by determine correspond to constellation point binary marks 420 in which Bit b1, b2 ..., bn is associated with data flow 130-1,130-2, carries out demapping to the received data.

In some embodiments, the processor is associated with received data stream 130-1,130-2 for estimating The related channel quality of channel.

Processor 1020 may include one or more examples of processing circuit, for example, central processing unit (CPU), place Reason unit, processing circuit, processor, specific integrated circuit (ASIC), microprocessor other can illustrate and execute instruction Handle logic.Therefore, statement " processor " used herein can indicate processing circuit comprising it is for example any, part or All above-mentioned cited multiple processing circuits.

In addition, receiver 120 further includes transmitting line 1030, for sending to received described by the transmitter 110 The channel quality of estimation.

In some optional embodiments, receiver 120 and/or processor 1020 may include: estimation unit, for estimating The related channel quality of associated with received data stream 130-1,130-2 channel.In addition, receiver 120 and/or processing Device 1020 can also comprise determining that unit, channel quality based on estimation or the configured transmission received from transmitter 110 letter Information is enabled, determines the modulation scheme 400 of received data flow 130-1,130-2.In addition, receiver 120 and/or place Manage device 1020 can also include: de-mapping unit, for by determine correspond to constellation point 410 binary marks 420 in which A little bit b1, b2 ..., bn is associated with data flow 130-1,130-2, carries out demapping to the received data.

In addition, in some embodiments, receiver 120 can also include at least one memory in receiver 120 1025.Optional memory 1025 may include the physics for temporarily or permanently storing the data such as instruction sequence or program Equipment.According to some embodiments, memory 1025 may include integrated circuit, and the integrated circuit includes the crystal based on silicon Pipe.In addition, memory 1025 can be volatibility or non-volatile.

It can come together to realize by the related computer program product of one or more processors 1020 in receiver 120 Pending movement 901-906 in receiver 120, wherein function of the computer program product for execution movement 901-906 Energy.

Therefore, computer program includes program code, for executing the method according to any one of movement 901-906 900, to receive at least one in multiple access access environment in processor 1020 of the computer program loads to receiver 120 Multiplexed data stream 130-1,130-2.

According to some embodiments, computer program product may include being stored thereon with the computer-readable of program code to deposit Storage media, so as in wireless communication system 100 receive multiple access access environment at least one multiplexed data stream 130-1, 130-2, said program code include the instruction for executing the method 900 included the following steps: the channel quality based on estimation Or the transmission parameter signaling information received from transmitter 110, determine 904 received data stream 130-1,130-2's Modulation scheme 400；The data of 905 characterization constellation points 410 are received in time-frequency resource elements；Correspond to constellation point by determining Which bit b1, b2 in 410 binary marks 420 ..., bn is associated with data flow 130-1,130-2, connects to described 905 data received carry out demapping 906.

Calculations set forth above machine program product can be provided as this form, that is, data medium load capacity calculation machine program Code, according to some embodiments, to execute at least partly described dynamic when computer program code is loaded into processor 1020 Make 901-906.The data medium can be, for example, hard disk, CD-ROM, memory stick, optical storage apparatus, magnetic storage Equipment or any other suitable medium, for example the disk or tape of machine-readable data can be kept in a manner of non-transitory. The computer program product can be further provided as on the server and for example by internet or Intranet link quilt Download to the computer program code of receiver 120.

Term used in the description of embodiment shown in attached drawing is not intended to be limiting described method 700,900；Hair Send device 110 and/or receiver 120.In the case where not departing from the present invention as defined in the appended claims, can make each Kind changes, substitutes and/or modifies.

Term "and/or" used herein includes any and all combinations of one or more related listed items. In addition, the "an" of singular, "one" and " described " are interpreted as "at least one", unless otherwise indicated, therefore also have It may include multiple entities of identical type.It should also be understood that term " includes " and/or "comprising" specify existing characteristics, movement, whole Number, step, operation, element and/or component, but do not preclude the presence or addition of one or more of the other feature, movement, integer, step Suddenly, operation, element, component and/or combination thereof.The individual units such as processor may be implemented to record in claim multinomial Function.The mutually different combination for the fact that be recited in mutually different dependent certain measures not characterizing these measures cannot It is advantageously used.Computer program be can store/be arranged in suitable medium, for example, optical storage medium or with portion Divide other hardware provided together or solid state medium as the other hardware in part, but may be set to be other forms, For example, passing through internet or other wired or wireless communication systems.

Claims (30)

1. a kind of method (700) of transmitter (110) in cordless communication network (100), for the multichannel in multiple access access environment Multiplexed data flow (130-1,130-2), which is characterized in that the method (700) includes:

(701) data are sent on multiple data flows (130-1,130-2), the data are waited for by least one receiver (120) It receives；

(702) channel quality estimation is obtained, wherein the channel quality estimation is channel quality information CQI；

(702) channel quality estimation based on the acquisition selects (703) K data flow (130-1,130-2)；

(702) channel quality estimation based on the acquisition, determination (704) selected (703) K data flow (130-1, Modulation scheme (400) 130-2)；

Formed (705) can comprising the bit (b1, b2 ..., bn) of all K data flows (130-1,130-2) two into System label (420), and by it is described label (420) in each bit and selected (703) data flow (130-1,130-2) It is mapped；

According to it is described be mapping through collect from all K data flows (130-1,130-2) n bit (b1, b2 ..., Bn), the value of (705) binary marks (420) of (706) described formation is determined；

In (704) modulation scheme (400) of the determination, select (707) according to (706) binary marks of the determination (420) constellation point (410) marked；And

The data that (708) characterize selected (707) constellation point (410) are sent in time-frequency resource elements.

2. according to the method for claim 1 (700), which is characterized in that the mapping is dynamically executed, so that including extremely Each bit in (705) binary marks (420) of the formation in the period of few two mark spaces (b1, b2 ..., Bn the number for) being mapped to each selected (703) data flow (130-1,130-2) is similar.

3. according to claim 1 or method as claimed in claim 2 (700), which is characterized in that periodically carry out described reflect It penetrates, to realize within the period for including at least two mark spaces in selectable (703) data flow (130-1,130-2) of institute Level error protection is similar.

4. according to claim 1 or method as claimed in claim 2 (700), which is characterized in that (702) channel of the acquisition Quality estimation is related to referring indirectly to the channel of data flow (130-1,130-2)；And in (702) each channel quality of the acquisition When difference between estimation is less than threshold value, select (703) data flow (130-1,130-2).

5. according to claim 1 or method as claimed in claim 2 (700), which is characterized in that (703) first data flows of selection (130-1) and the second data flow (130-2), and (704) modulation scheme (400) of the determination is the binary marks (420) different bits (b1, b2 ..., bn) provide multiple and different level error protections, wherein each different difference Error protection rank includes (705) binary marks (420) interior even number of bits (b1, b2 ..., bn) of the formation, wherein In each odd number symbols interval, for each protection level: the first half bit (b1 ..., b (n-1)) and first number It is mapped according to stream (130-1), and the second half bit (b2 ..., bn) it is reflected with second data flow (130-2) It penetrates, and in each even number symbols interval, the first half bit (b1 ..., b (n-1)) and second data flow (130-2) is mapped, and the second half bit (b2 ..., bn) it is reflected with first data flow (130-1) It penetrates.

6. according to claim 1 or method as claimed in claim 2 (700), which is characterized in that selection (703) Z >=K's is numerous K data flow (130-1,130-2) in available data streams (130-1,130-2)；By from selected (703) K number According to each collection m in stream (130-1,130-2)₀A bit (b1, b2 ..., bm₀) form (705) described binary marks (420), the length of the binary marks (420) of the formation is mm₀K bit (b1, b2 ..., bm₀)；The determination (704) modulation scheme (400) includes havingThe high-order expanding constellation of a symbol；Wherein, so that the K data flow (130-1,130-2) there is the mode of similar level error protection to form (705) described binary marks (420).

7. according to claim 1 or method as claimed in claim 2 (700), which is characterized in that the transmitter (110) includes Transfer point TP, wherein the transmission (701,708) of data carries out in the downlink and to include user equipment (UE) by least one Receiver (120) receive.

8. according to claim 1 or method as claimed in claim 2 (700), which is characterized in that the transmitter (110) includes User equipment (UE), wherein the transmission (701,708) of data carries out in the uplink of same transmission circuit (830) and to by extremely A few receiver (120) including transfer point TP receives.

9. according to claim 1 or method as claimed in claim 2 (700), which is characterized in that the transmitter (110) when Divide under duplexing tdd mode and operate, the movement for obtaining (702) channel quality estimation includes being received on reverse link from institute It states the signal of receiver (120) and estimates the channel quality of received signal.

10. according to claim 1 or method as claimed in claim 2 (700), which is characterized in that the transmitter (110) is in frequency Divide under duplex FDD mode or tdd mode and operate, the movement for obtaining (702) channel quality estimation includes receiving described in The channel quality estimation of receiver (120).

11. the transmitter (110) in a kind of cordless communication network (100), the transmitter (110) is used in multiple access access environment Middle multiplexed data stream (130-1,130-2), which is characterized in that the transmitter (110) includes:

Transmitting line (830), for sending data on multiple data flows (130-1,130-2), the data are waited for by least one A receiver (120) receives, and is also used to send the data of characterization constellation point (410) in time-frequency resource elements；

It receives circuit (810), for obtaining channel quality estimation, wherein the channel quality estimation is channel quality information CQI； With

Processor (820) selects K data flow (130-1,130-2) for the channel quality estimation based on the acquisition；Also use In based on the channel quality estimation with the selected associated acquisition of K data flow (130-1,130-2), institute is determined State the modulation scheme (400) of the K data flow (130-1,130-2) of selection；Being also used to be formed can include all K numbers According to the binary marks (420) of the bit (b1, b2 ..., bn) of stream (130-1,130-2), and will be in the label (420) Each bit and selected data flow (130-1,130-2) mapped；In addition it is also used to be mapping through according to N bit (b1, b2 ..., bn) is collected from all K data flows (130-1,130-2), determine the two of the formation into The value of system label (420)；It is further also used in the modulation scheme (400) of the determination, selects according to the two of the determination System marks the constellation point (410) of (420) label.

12. transmitter (110) according to claim 11, which is characterized in that the processor (820) is also used to dynamically The mapping is executed, so that every in the binary marks (420) of the formation within the period for including at least two mark spaces The number that a bit (b1, b2 ..., bn) is mapped to each selected data flow (130-1,130-2) is similar.

13. according to claim 11 or claim 12 described in transmitter (110), which is characterized in that the processor (820) It is also used to periodically carry out the mapping, to realize within the period for including at least two mark spaces the selected K Level error protection in data flow (130-1,130-2) is similar.

14. according to claim 11 or claim 12 described in transmitter (110), which is characterized in that the channel of the acquisition Quality estimation is related to referring indirectly to the channel of data flow (130-1,130-2)；And the processor (820) is also used to connect When the difference between each channel quality estimation received is less than threshold value, K data flow (130-1,130-2) is selected.

15. according to claim 11 or claim 12 described in transmitter (110), which is characterized in that the processor (820) It is also used to select the first data flow (130-1) and the second data flow (130-2), and the processor (820) is also used to determine Modulation scheme (400), the modulation scheme (400) be the binary marks (420) different bits (b1, b2 ..., Bn multiple and different level error protections) is provided, wherein each different level error protection includes the binary marks (420) interior even number of bits (b1, b2 ..., bn), wherein in each odd number symbols interval, for each protection level: the One half bit (b1 ..., b (n-1)) is mapped with first data flow (130-1), the second half bit (b2 ..., bn) it is mapped with second data flow (130-2), and in each even number symbols interval, described One half bit (b1 ..., b (n-1)) is mapped with second data flow (130-2), the second half bit (b2 ..., bn) it is mapped with first data flow (130-1).

16. according to claim 11 or claim 12 described in transmitter (110), which is characterized in that the processor (820) It is also used to select the K data flow (130-1,130-2) in numerous available data streams (130-1,130-2) of Z >=K；The place Reason device (820) is also used to by from each collection m in the selected K data flow (130-1,130-2)₀A bit (b1, B2 ..., bm₀) binary marks (420) are formed, the length of the binary marks (420) of formation is mm₀K bit (b1, B2 ..., bm₀)；The processor (820) includes having for determiningThe modulation scheme of the high-order expanding constellation of a symbol (400)；And the processor (820) is also used to so that the K data flow (130-1,130-2) has similar mistake Protected level forms the binary marks (420) otherwise.

17. according to claim 11 or claim 12 described in transmitter (110), which is characterized in that the transmitter (110) Including transfer point TP, the wherein transmission of data progress and the reception to by least one include user equipment (UE) in the downlink Device (120) receives.

18. according to claim 11 or claim 12 described in transmitter (110), which is characterized in that the transmitter (110) Including user equipment (UE), the wherein transmission of data progress and the reception to by least one include transfer point TP in the uplink Device (120) receives.

19. according to claim 11 or claim 12 described in transmitter (110), which is characterized in that the transmitter (110) It operates in tdd mode, and for receiving the signal from the receiver (120) on reverse link and estimating to be received The channel quality of signal.

20. according to claim 11 or claim 12 described in transmitter (110), which is characterized in that the transmitter (110) It is operated under fdd mode or tdd mode, and for receiving the channel quality estimation from the receiver (120).

21. a kind of method (900) of receiver (120) in cordless communication network (100), for being received in multiple access access environment At least one multiplexed data stream (130-1,130-2), which is characterized in that the method (900) includes:

The data that (901) are sent by transmitter (110) are received at least one data flow (130-1,130-2)；

Channel quality based on estimation or the transmission parameter signaling information received from the transmitter (110), determine (904) institute The modulation scheme (400) for stating received (901) data flow (130-1,130-2), wherein the channel quality of the estimation is Channel quality information CQI；

The data of (905) characterization constellation point (410) are received in time-frequency resource elements；

By the way which bit (b1, b2 ..., bn) in the binary marks (420) for corresponding to the constellation point (410) determined It is associated with the data flow (130-1,130-2), demapping (906) are carried out to received (905) data.

22. according to the method for claim 21 (900), which is characterized in that the receiver (120) is grasped in tdd mode Make.

23. according to method described in claim 21 or claim 22 (900), which is characterized in that the receiver (120) exists It is operated under fdd mode or tdd mode, wherein the method (900) further include:

Estimate (902) and the related channel quality of the associated channel of received (901) data flow (130-1,130-2)；

The channel quality of (903) estimation (902) is sent, the channel quality of the estimation (902) is waited for by the transmitter (110) it receives.

24. according to method described in claim 21 or claim 22 (900), which is characterized in that receiver (120) packet Include UE；Receive (901) are carried out in the downlink by the data that the transmitter (110) including TP is sent.

25. according to method described in claim 21 or claim 22 (900), which is characterized in that receiver (120) packet Include TP；Receive (901) are carried out in the uplink by the data that the transmitter (110) including UE is sent.

26. a kind of receiver (120) in cordless communication network (100), for receiving at least one in multiple access access environment A multiplexed data stream (130-1,130-2), which is characterized in that the receiver (120) includes:

It receives circuit (1010), for receiving the data of characterization constellation point (410) in time-frequency resource elements；The reception circuit (1010) it is further also used to receive the data sent by transmitter (110) at least one data flow (130-1,130-2)；

Processor (1020) is believed for the channel quality based on estimation or the configured transmission received from the transmitter (110) Information is enabled, the modulation scheme (400) of received data stream (130-1,130-2) is determined, wherein the channel of the estimation Quality is channel quality information CQI, and is also used to correspond to by determining the binary marks of the constellation point (410) Which bit in (420) (b1, b2 ..., bn) it is associated with the data flow (130-1,130-2), to described received Data carry out demapping.

27. receiver (120) according to claim 26, which is characterized in that the receiver (120) is used in TDD mould It is operated under formula.

28. according to receiver described in claim 26 or claim 27 (120), which is characterized in that the receiver (120) For operating under fdd mode or tdd mode, the processor (1020) is also used to estimate and received data stream (130- 1,130-2) the related channel quality of associated channel；The receiver (120) further includes transmitting line (1030), for sending out The channel quality of the estimation is sent, the channel quality of the estimation waits for being received by the transmitter (110).

29. according to receiver described in claim 26 or claim 27 (120), which is characterized in that the receiver (120) Including UE；Described receive is carried out in the downlink by the data that the transmitter (110) including TP is sent.

30. according to receiver described in claim 26 or claim 27 (120), which is characterized in that the receiver (120) Including TP；Described receive is carried out in the uplink by the data that the transmitter (110) including UE is sent.