WO2014166180A1

WO2014166180A1 - Method, device, and system for mobile communication

Info

Publication number: WO2014166180A1
Application number: PCT/CN2013/080266
Authority: WO
Inventors: 游月意
Original assignee: 华为技术有限公司
Priority date: 2013-04-10
Filing date: 2013-07-29
Publication date: 2014-10-16
Also published as: CN104641571A

Abstract

Provided in the present invention is a method for mobile communication. The method comprises: modulating and coding an M-number of primary data streams on the basis of a modulation and coding scheme to acquire an M-number of modulated data streams, where M is a positive integer greater than 1 and M is no greater than the number of antennae; symbol mapping respectively the M-number of modulated data streams to generate an M-number of mapped data streams; mixing the M-number of mapped data streams to generate an M-number of mixed data streams; and, transmitting the M-number of mixed data streams respectively on the different antennae to a terminal. The method allows for reduced signaling overhead and for reduced system feedback overhead.

Description

Mobile communication method, device and system

The present invention relates to the field of communications, and in particular, to a mobile communication method, apparatus, and system. Background technique

Multiple-input Multiple-Output (MIMO) technology has been widely used in wireless communication technologies such as wireless fidelity (WIFI) and long term evolution (LTE). The technology can simultaneously transmit the input sequence into multiple streams of data in parallel, and the channel capacity is greatly increased with the increase in the number of transmitting and receiving antennas. With the Global System for Mobile Communications (GSM) / Enhanced Data Rates for Global Evolution (EDGE) Radio Access Network (GSM/GSM Radio Access Network, GERAN) communication system In the rapid growth of the number of users and the demand for data transmission speed, 3GPP is studying the application of MIMO technology to GERAN technology.

The existing spatial multiplexing technique is to transmit multiple data streams through different channels through different antennas. For example, as shown in FIG. 1 , in the GERAN system, it is assumed that the base station has two antennas and two initial data. The stream needs to be transmitted. First, the two initial data streams are separately modulated and coded for symbol mapping, and corresponding to the two mapped data streams X0 and XI. Then, the two mapped data streams are respectively matched with the training sequence 2 corresponding to each antenna ( The training sequence code, TSC1) and (Training sequence code, TSC2) perform burst mapping according to the protocol standard, then phase rotation, and finally transmit to the terminal at the antenna 1 and the antenna 2 after pulse shaping. After receiving the two data streams through the two antennas, the terminal simultaneously reports the carrier-to-interference ratio (CIR) of the two data streams, so that the base station can perform the carrier-to-interference ratio according to each data stream. A modulation coding scheme corresponding to the initial data stream is determined for modulation coding of the initial data stream to be transmitted. Therefore, the terminal must support the carrier-to-interference ratio of two data streams for simultaneous reporting, more signaling, large feedback overhead, and the base station is difficult to be accurate due to the long feedback time of GERAN and the fluctuation of carrier-to-interference ratio caused by inter-cell interference. The modulation coding mode is determined according to the carrier-to-interference ratio. In addition, if the initial data stream adopts the same modulation and coding mode, the base station must ensure that the two data streams transmitted can be correctly decoded by the terminal, and the base station must perform modulation according to the lower carrier-to-interference ratio. The encoding method encodes the initial data stream, resulting in a drop in throughput. Summary of the invention

In view of this, the embodiment of the present invention provides a mobile communication method, so that after the base station sends multiple data streams through multiple antennas, the terminal only needs to feed back the carrier-to-interference ratio corresponding to one data stream to the base station.

To achieve the above objective, the first aspect of the present invention provides a mobile communication method, where the method includes:

The M channel initial data stream is modulated and coded according to a modulation and coding manner to obtain an M-channel modulated data stream, where M is a positive integer greater than 1, and M is not greater than the number of antennas;

Performing symbol mapping on the M-channel modulated data streams to generate an M-way mapping data stream; mixing the M-way mapping data streams to generate an M-channel mixed data stream;

And transmitting the M-channel mixed data stream to the terminal on different antennas.

Based on the first aspect, in a first possible implementation, the mixing, the M-way mapping data stream, and the M-way mixed data stream, specifically:

The symbols of the M-way mapped data stream are mixed in units of a single symbol to obtain the M-way mixed data stream.

Based on the first possible implementation manner of the first aspect, a second possible implementation manner is further provided, where the symbols of the M-way mapping data stream are mixed in a single symbol to obtain the M The road mixes the data stream, specifically including: When the M is equal to 2, symbols of the same position of the M-way mapping data stream are exchanged every other symbol to obtain the M-way mixed data stream.

Based on the first possible implementation manner of the first aspect, a third possible implementation manner is further provided, where M is equal to 3, and the M-way mapping data stream includes mapping data streams X0, XI, and X2, and The number of symbols in each of the M-mapped data streams in any one of the pulses is N, the N is a positive integer; the M-way mixed data stream includes mixed data streams C0, C1, and C2;

And mixing the symbols of the M-way mapping data stream in a single symbol, and acquiring the M-channel mixed data stream, specifically:

Taking a symbol from the mapped data stream X0 in a symbol within one pulse at a time, and sequentially placing the mixed data stream CO at a 3*n position within the one pulse, the mixed data stream C1 being in the Said 3*n+1 positions in a pulse, said mixed data stream C2 being at a 3*n+2 position in said one pulse;

Taking a symbol from the mapped data stream XI in a symbol within one pulse at a time, and sequentially placing the mixed data stream C2 at a 3*n position within the one pulse, the mixed data stream CO in the a third *n+1 position in a pulse, the mixed data stream C1 is at a 3*n+2 position within the one pulse;

Taking a symbol from the mapped data stream X2 in a symbol within one pulse at a time, and sequentially placing the mixed data stream C1 at a 3*n position within the one pulse, the mixed data stream C2 being a 3*n+1 position in the one pulse, and the mixed data stream CO is at a 3*n+2 position in the one pulse;

Wherein, N is an integer, n=0, l, 2, .." N/3-1

Based on the first possible implementation manner of the first aspect, a fourth possible implementation manner is further provided, where M is equal to 4, and the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3, and The number of symbols in each of the M-mapped data streams in any one of the pulses is N, the N is a positive integer; the M-way mixed data stream includes mixed data streams C0, CI, C2, and C3; And the mixing, by the single symbol, the symbols of the M-way mapping data stream to obtain the M-channel mixed data stream, specifically:

Taking a symbol from the mapped data stream X0 in a symbol within one pulse at a time, and sequentially placing the mixed data stream CO at a 4*n position within the one pulse, the mixed data stream C1 being in the a fourth *n+1 position in a pulse, the mixed data stream C2 is at a 4*n+2 position in the one pulse, and the mixed data stream C3 is in the first pulse 4*n+3 locations;

Taking one symbol at a time from the mapping data stream XI in the symbol within the one pulse, and sequentially placing the mixed data stream C3 at a 4*n position within the one pulse, the mixed data stream CO At a 4*n+1 position in the one pulse, the mixed data stream C1 is at a 4*n+2 position within the one pulse, and the mixed data stream C2 is within the one pulse 4*n+3 positions;

Taking one symbol at a time from the symbol of the one pulse in the mapping data stream X2, sequentially placing the fourth *n position in the one pulse of C2, the mixed data stream C3 being in the one pulse 4*n+1 positions in the 4*n+2 positions in the one pulse, and 4*n in the one pulse in the mixed data stream C1 +3 positions; one symbol is taken from the symbol in the one pulse from the mapping data stream X3, and placed in the 4th to nth positions of the mixed data stream C1 in the one pulse in sequence, The mixed data stream C2 is at a 4*n+1 position within the one pulse, the mixed data stream C3 is at a 4*n+2 position within the one pulse, and the mixed data stream CO is 4*n+3 positions within the one pulse;

Where n is a positive integer, η = 0, 1, 2, · · · , N/4-l.

According to the first aspect, in a fifth possible implementation manner, the method for mixing the route mapping data streams is to generate a road hybrid data stream, where the number of the mixed data stream channels is the same as the mapping data stream, Specifically include: The symbols of the M-way mapping data stream are mixed in units of symbols in the half-pulse of the M-channel mapping data stream, and the M-channel mixed data stream is obtained.

According to a fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the M is 2, and the mapping data stream in any one of the M-way mapping data streams is within a half pulse The symbol of the M-way mapping data stream is mixed, and the M-channel mixed data stream is obtained, which specifically includes:

And a symbol of one of the M-mapped data streams in a half pulse of one pulse and another half of the M-mapped data stream of the M-mapped data stream in the one pulse of the one pulse The symbols inside are exchanged.

Based on the first aspect, in a seventh possible implementation, the data of the M-way mapping data stream is in a unit of a half-pulse in the M-way mapping data stream, and the M-way mapping data stream is The symbol is mixed to obtain the M-channel mixed data stream, and specifically includes:

The symbols of the M-channel mapped data stream in the four pulses of one coding block are mixed in units of symbols in one of the M-mapped data streams in one of the encoded data streams.

In a seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, the M is 4, and the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3; The number of symbols in each of the M-mapped data streams in one pulse is N, and the N is a positive integer; the M-channel mixed data stream includes mixed data streams C0, Cl, C2, and C3.

And mixing the symbols of the M-channel mapping data stream in the four pulses of one coding block in units of symbols of the one-way mapping data stream in the M-way mapping data stream, specifically including :

And selecting, from the mapping data stream X0, a symbol corresponding to a half pulse at a time among four pulses of the one coding block, and sequentially placing the mixed data stream CO in a fourth*n half of the one coding block a pulse position, the mixed data stream C1 is at a 4*n+l half-pulse position of the one coding block, and the mixed data stream C2 is at a 4*n+2 half of the one coding block. Pulse position, The mixed data stream C3 is at a 4*n+3 half-pulse position of the one coding block; from the mapping data stream XI, one of the 4 pulses of the one coding block is taken at a time. a symbol, which is sequentially placed in the 4*nth half pulse position of the one code block in the mixed data stream C3, and the mixed data stream CO is in the 4th*n+l half of the one code block a pulse position, the mixed data stream C1 is at a 4*n+2 half-pulse position of the one coding block, and the mixed data stream C2 is at a 4*n+3th half of the one coding block. Pulse position

And selecting, from the mapping data stream X2, a symbol corresponding to a half pulse at a time among four pulses of the one coding block, and sequentially placing the mixed data stream C2 in a fourth*n half of the one coding block a pulse position, the mixed data stream C3 is at a 4*n+l half-pulse position of the one coding block, and the mixed data stream CO is at a 4*n+2 half of the one coding block a pulse position, the mixed data stream C1 being at a 4*n+3 half-pulse position of the one coding block;

And selecting, from the mapping data stream X3, a symbol corresponding to a half pulse at a time among four pulses of the one coding block, and sequentially placing the mixed data stream C1 at a 4*nth half of the one coding block a pulse position, the mixed data stream C2 is at a 4*n+l half-pulse position of the one coding block, and the mixed data stream C3 is at a 4*n+2 half of the one coding block. a pulse position, the mixed data stream CO is at a 4*n+3 half-pulse position of the one coding block;

Where η is an integer and η = 0, 1.

In a ninth possible implementation manner, in the ninth possible implementation manner, the combining, the routing, the data stream, and the generating the hybrid data stream, specifically:

The symbols of the loop map data stream in one pulse of one code block are mixed in units of symbols of one of the map data streams in the loop map data stream.

Based on the ninth possible implementation manner of the first aspect, in a tenth possible implementation manner, the Μ is equal to 2, and the mapping data stream in any one of the routing data streams is in one pulse The symbol is a unit, and the symbols of the loop map data stream in the four pulses of one coding block are mixed to obtain a loop mixed data stream, which specifically includes: Within each of the four pulses of one code block, every other pulse exchanges symbols within one pulse of the M-way mapped data stream.

Based on the ninth possible implementation manner of the first aspect, in an eleventh possible implementation manner, the M is equal to 4, and the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3; The M-way mixed data stream includes mixed data streams C0, Cl, C2, and C3, and the M-channel mapping is performed by using a symbol of any one of the M-mapped data streams in one pulse. The data stream is mixed in symbols within 4 pulses of a coded block, including

Xm(0), Xm(l), Xm(2), Xm(3) respectively represent symbols of the M-way mapping data stream within 4 pulses of the one coding block, m=0, l, 2, 3;

Taking one pulse data from the four pulses of the one coding block from the mapping data stream X0, and sequentially placing the mixed data stream CO at the 0th pulse position of the one coding block, the mixing The data stream C1 is at the first pulse position of the one coding block, the mixed data stream C2 is at the second pulse position of the one coding block, and the mixed data stream C3 is at the third of the one coding block. Pulse position.

Taking one pulse data from the four pulses of the one coding block from the mapping data stream XI, and sequentially placing the mixed data stream C3 at the 0th pulse position of the one coding block, the mixing The data stream CO is at the first pulse position of the one coding block, the mixed data stream C1 is at the second pulse position of the one coding block, and the mixed data stream C2 is at the third of the one coding block. Pulse position.

Taking one pulse data from the four pulses of the one coding block from the mapping data stream X2, and sequentially placing the mixed data stream C2 at the 0th pulse position of the one coding block, the mixing The data stream C3 is at the first pulse position of the one coding block, the mixed data stream CO is at the second pulse position of the one coding block, and the mixed data stream C1 is at the third of the one coding block. Pulse position.

Taking one pulse from the four pulses of the one coding block from the mapped data stream X3 Data, and sequentially placed in the mixed data stream CI at the 0th pulse position of the one coding block, the mixed data stream C2 at the first pulse position of the one coding block, the mixed data stream C3 At the second pulse position of the one code block, the mixed data stream CO is at the third pulse position of the one code block.

Based on the first aspect, or any one of the possible implementations of the first aspect, in a twelfth possible implementation,

Receiving, by the terminal, a measurement report of the one-way mapping data stream obtained and fed back according to the channel quality of the M-channel mixed data stream, and determining the modulation and coding mode according to the measurement report of the one-way mapping data stream; or

And receiving, by the terminal, a carrier-to-interference ratio of a one-way mapped data stream obtained and fed back according to a carrier-to-interference ratio of the M-way mixed data stream, and determining the modulation and coding mode according to the carrier-to-interference ratio of the one-way mapped data stream.

In a second aspect, an embodiment of the present invention provides a mobile communication device, where the device includes: an encoding unit, configured to perform modulation coding on an M-channel initial data stream according to a modulation and coding manner, to obtain an M-channel modulated data stream, where the M a positive integer greater than 1, and M is not greater than the number of antennas; a mapping unit, configured to perform symbol mapping on the M-channel modulated data streams obtained by the coding unit, to generate an M-way mapping data stream;

a mixing unit, configured to mix the M-way mapping data streams received from the mapping unit to generate an M-way mixed data stream;

And a sending unit, configured to send the M-channel mixed data stream generated by the mixing unit to the terminal on different antennas.

Based on the second aspect, in a first possible implementation, the mixing unit is specifically configured to: mix, in a single symbol, a symbol of the M-way mapping data stream in one pulse to obtain the M Road mixed data stream.

Based on the first possible implementation of the second aspect, a second possible implementation is also provided The mixing unit is specifically configured to: when the M is equal to 2, exchange symbols of the same position of the M-way mapping data stream every other symbol to obtain the M-way mixed data stream.

According to a first possible implementation manner of the first aspect, a third possible implementation manner is further provided, where the M is equal to 3, and the M-way mapping data stream includes mapping data streams X0, XI and X2 And the number of symbols in each of the M-mapped data streams in any one of the pulses is N, the N is a positive integer; the M-way mixed data stream includes mixed data streams C0, C1, and C2;

The mixing unit is specifically configured to:

Taking one symbol at a time from the mapping data stream XI in the symbol within the one pulse, and sequentially placing the mixed data stream C2 at a 3*n position within the one pulse, the mixed data stream CO At a 3*n+1 position within the one pulse, the mixed data stream C1 is at a 3*n+2 position within the one pulse;

Taking one symbol at a time from the symbol of the one pulse in the mapping data stream X2, and placing it in the 3*nth position of the mixed data stream C1 in the one pulse in sequence, the mixed data stream C2 At a 3*n+1 position within the one pulse, the mixed data stream CO is at a 3*n+2 position within the one pulse;

Wherein n is an integer, n=0, 1, 2, ..., N/3-l.

According to the first possible implementation manner of the second aspect, a fourth possible implementation manner is further provided, where the M-channel mapping data stream includes the mapping data stream X0, XI when the M is equal to 4. And X2 and X3, and the number of symbols in each of the M-mapped data streams in any one of the pulses is N, and the N is a positive integer; the M-channel mixed data stream includes a mixture Data streams C0, Cl, C2 and C3;

The mixing unit is specifically configured to:

Taking a symbol from the mapped data stream X0 in a symbol within one pulse at a time, and sequentially placing the mixed data stream CO at a 4*n position within the one pulse, the mixed data stream C1 being in the Said 4*n+1 positions in a pulse, said mixed data stream C2 is at 4*n+2 positions in said one pulse, and C3 is 4*n+3 in said one pulse Location.

Taking one symbol at a time from the mapped data stream XI in a symbol within one pulse, and sequentially placing the mixed data stream C3 at a 4*n position within the one pulse, the mixed data stream CO in the a fourth *n+1 position in a pulse, the mixed data stream C1 is at a 4*n+2 position within the one pulse, and the mixed data stream C2 is within the one pulse 4*n+3 locations;

Where n is a positive integer, n=0, 1 , ··. , N/4-1.

Based on the second aspect, in a fifth possible implementation, the mixing unit is specifically configured to: use the symbol of any one of the M-way mapping data streams in a half pulse, The symbols of the M-way mapping data stream are mixed to obtain the M-way mixed data stream.

According to a fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, The M is 2, and the mixing unit is specifically configured to:

And a symbol of one of the M-mapped data streams in one pulse of one pulse and another mapping data stream of the M-way mapped data stream in the half of the pulse of the one pulse Symbols are exchanged.

According to the second aspect, in a seventh possible implementation, the mixing unit is specifically configured to: use the symbol of any one of the M-way mapping data streams in a half pulse, The M-way mapped data stream is mixed in symbols within 4 pulses of a coded block.

In a seventh possible implementation manner of the second aspect, in an eighth possible implementation manner, when the M is 4, the M-way mapping data stream includes a mapping data stream X0, XI, X2, and X3; each of the M-mapped data streams has a symbol number N in one pulse, and the N is a positive integer; the M-channel mixed data stream includes a mixed data stream C0, Cl , C2 and C3;

The mixing unit is specifically configured to:

And selecting, from the mapping data stream X0, a symbol corresponding to a half pulse at a time among four pulses of the one coding block, and sequentially placing the mixed data stream CO in a fourth*n half of the one coding block a pulse position, the mixed data stream C1 is at a 4*n+l half-pulse position of the one coding block, and the mixed data stream C2 is at a 4*n+2 half of the one coding block. a pulse position, the mixed data stream C3 being at a 4*n+3 half-pulse position of the one coding block;

Obtaining, from the mapping data stream XI, symbols corresponding to half of the pulses in the four pulses of the one coding block, and sequentially placing the mixed data stream C3 in the 4th to the nth half of the one coding block. a pulse position, the mixed data stream CO is at a 4*n+l half-pulse position of the one coding block, and the mixed data stream C1 is at a 4*n+2 half of the one coding block a pulse position, the mixed data stream C2 being at a 4*n+3 half-pulse position of the one coding block;

And selecting, from the mapping data stream X2, a symbol corresponding to one half of the four pulses of the one coding block, and sequentially placing the mixed data stream C2 in the 4th and nth half of the one coding block. a pulse position, the mixed data stream C3 is at a 4*n+l half-pulse position of the one coding block, and the mixed data stream CO is at a 4*n+2 half of the one coding block a pulse position, the mixed data stream C1 is at a 4*n+3 half-pulse position of the one coding block;

Where n is an integer and η = 0, 1.

Based on the second aspect, in a ninth possible implementation manner, the mixing unit is specifically configured to: use the symbol of any one of the M-way mapping data streams in a pulse, and the M The road map data stream is mixed in symbols within 4 pulses of a code block.

Based on the ninth possible implementation manner of the second aspect, in the tenth possible implementation manner, the M is 2, and the mixing unit is specifically configured to:

Within each of the four pulses of one code block, every other pulse exchanges symbols within one pulse of the M-way mapped data stream.

According to a ninth possible implementation manner of the second aspect, in an eleventh possible implementation manner, the M is equal to 4, and the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3; The M-way mixed data stream includes mixed data streams C0, Cl, C2, and C3, and the mixing unit is specifically configured to:

Taking one pulse data from the four pulses of the one coding block from the mapping data stream X0, and sequentially placing the mixed data stream CO at the 0th pulse position of the one coding block, the mixing The data stream C1 is at the first pulse position of the one code block, the mixed data stream C2 is at a second pulse position of the one coding block, and the mixed data stream C3 is at a third pulse position of the one coding block;

Taking one pulse data from the four pulses of the one coding block from the mapping data stream XI, and sequentially placing the mixed data stream C3 at the 0th pulse position of the one coding block, the mixing The data stream CO is at the first pulse position of the one coding block, the mixed data stream C1 is at the second pulse position of the one coding block, and the mixed data stream C2 is at the third of the one coding block. Pulse position

Taking one pulse data from the four pulses of the one coding block from the mapping data stream X2, and sequentially placing the mixed data stream C2 at the 0th pulse position of the one coding block, the mixing The data stream C3 is at the first pulse position of the one coding block, the mixed data stream CO is at the second pulse position of the one coding block, and the mixed data stream C1 is at the third of the one coding block. Pulse position

Taking one pulse data from the four pulses of the one coding block from the mapping data stream X3, and sequentially placing the mixed data stream C1 at the 0th pulse position of the one coding block, the mixing The data stream C2 is at the first pulse position of the one coding block, the mixed data stream C3 is at the second pulse position of the one coding block, and the mixed data stream CO is at the third of the one coding block. Pulse position.

According to the second aspect, or any one of the foregoing possible implementation manners of the second aspect, in the twelfth possible implementation,

The receiving unit is configured to receive a measurement report of a one-way mapping data stream that is obtained and fed back by the terminal according to the channel quality of the M-channel mixed data stream; the coding unit is further configured to receive according to the receiving unit The measurement report of the one-way mapped data stream to determine the modulation and coding mode; or

Receiving, by the receiving unit, a carrier-to-interference ratio of a one-way mapped data stream obtained and fed back by the terminal according to a carrier-to-interference ratio of the M-channel mixed data stream; the coding unit is further configured to The third aspect of the method for determining the modulation and coding mode of the one-way mapping data stream received by the element, the embodiment of the present invention provides a mobile communication device, where the device includes: a receiver, a transmitter, and Processor and memory;

An application physically stored in the memory, the application including instructions operable to cause the processor and the system to perform the following process:

And transmitting the M-channel mixed data stream to the terminal on different antennas;

Receiving, by the receiver, a carrier-to-interference ratio of the one-way mapped data stream obtained and fed back by the terminal according to a carrier-to-interference ratio of the M-way mixed data stream;

Determining the modulation and coding scheme according to the carrier-to-interference ratio of the one-way mapped data stream.

In a fourth aspect, the embodiment of the present invention provides a mobile communication system, where the system includes the mobile communication device and the terminal provided by the second aspect of the embodiment of the present invention.

The terminal, configured to acquire a carrier-to-interference ratio of a mapped data stream according to a carrier-to-interference ratio of the M-channel mixed data stream after receiving the M-channel mixed data stream sent by the mobile communication device; to the base station The carrier-to-interference ratio of the one-way mapped data stream is fed back.

A fifth aspect of the present invention provides a mobile communication method, where the method includes: receiving, by a terminal, an M-channel mixed data stream sent by a network-side device, where M is a positive integer greater than 1; The channel quality of the mixed data stream;

And obtaining, by the terminal, the channel quality of the one-way mapping data stream according to the channel quality of the M-channel mixed data stream, and transmitting the channel quality to the network side device by using the measurement report.

Based on the fifth aspect, in a first possible implementation manner of the fifth aspect, the method further includes: The terminal de-mixes the M-channel mixed data stream to generate an M-way mapped data stream. Based on the first possible implementation manner, in a second possible implementation, the terminal de-mixes the M-channel mixed data stream to generate an M-way mapping data stream, which specifically includes:

The symbols of the M-way mixed data stream are de-mixed in units of a single symbol to obtain the M-way mapped data stream.

Based on the second possible implementation manner, in a third possible implementation manner, the symbols of the M-channel mixed data stream are de-mixed in a single symbol unit, and the M-way mapping data stream is obtained. Specifically include:

When the M is equal to 2, the symbols at the same position of the M-channel mixed data stream are exchanged every other symbol to obtain the M-way mapped data stream.

According to a second possible implementation manner, in a fourth possible implementation manner, the M is equal to 3, the M-channel mixed data stream includes mixed data streams C0, C1, and C2, and the M-channel mixed data stream The number of symbols in each of the mixed data streams in any one of the pulses is N, the N is a positive integer; the M-way mapping data stream includes mapping data streams X0, XI and X2;

And de-mixing the symbols of the M-channel mixed data stream in a single symbol, and obtaining the M-way mapping data stream, specifically:

Extracting symbols of the 3*nth position of the mixed data stream CO within a pulse, the symbol of the 3*n+l position of the mixed data stream C1 in the one pulse, and the mixed data stream C2 The symbols of the 3*n+2 positions in the one pulse are sequentially placed in the one pulse of the mapping data stream X0;

Extracting symbols of the 3*nth position of the mixed data stream C2 in the one pulse, the symbol of the 3*n+1th position in the mixed data stream CO, the mixed data stream a symbol of C3 at the 3*n+2th position in the one pulse, which is sequentially placed in the one pulse of the mapped data stream XI;

Extracting symbols of the 3*nth position of the mixed data stream C1 within the one pulse, the mixing a symbol of the 3*n+1th position of the data stream C2 in the one pulse, and the symbol of the 3*n+2th position in the mixed data stream CO in the one pulse is sequentially placed in the map Within one of the pulses of data stream X2;

Wherein n is an integer, n=0, 1, 2, ..., N/3-l.

Based on the second possible implementation manner, in a fifth possible implementation manner, the M is equal to

4, the M-channel mixed data stream includes mixed data streams CO, Cl, C2, and C3, and the number of symbols in each of the M-channel mixed data streams in any one of the pulses is N, and the N is a positive integer; the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3;

Extracting symbols of the 4*nth position of the mixed data stream CO in a pulse, the symbol of the 4*n+l position of the mixed data stream C1 in the one pulse, and the mixed data stream C2 a symbol of the 4*n+2th position in the one pulse, and a symbol of the 4*n+3th position in the mixed data stream C3 in the one pulse, and sequentially placed in the mapping data stream X0 Within a pulse;

Extracting symbols of the 4*nth position of the mixed data stream C3 in the one pulse, the symbol of the 4*n+l position in the mixed data stream CO, the mixed data stream C1 is a symbol of the 4th*n+2th position in the one pulse, and the symbol of the 4*n+3th position of the mixed data stream C2 in the one pulse is sequentially placed in the mapping data stream XI Within one of the pulses;

Extracting symbols of the 4*nth position of the mixed data stream C2 in the one pulse, the symbol of the 4*n+l position in the mixed data stream C3, the mixed data stream a symbol of the 4th*n+2th position of the CO in the one pulse, and the symbol of the 4*n+3th position of the mixed data stream C1 in the one pulse is sequentially placed in the mapping data stream X2 Within one of the pulses; Extracting symbols of the 4*nth position of the mixed data stream C1 in the one pulse, the symbol of the 4*n+l position in the mixed data stream C2, the mixed data stream C3 is a symbol of the 4th*n+2th position in the one pulse, and the symbol of the 4*n+3th position of the mixed data stream CO in the one pulse is sequentially placed in the mapping data stream X3. Within one of the pulses;

Where n is a positive integer, n=0, 1 , ··. , N/4-1.

According to the first possible implementation manner, in a sixth possible implementation, the terminal de-mixes the M-channel mixed data stream to generate an M-way mapping data stream, which specifically includes:

The symbols of the M-channel mixed data stream are de-mixed in units of symbols in the half-pulse of the mixed data stream in the M-channel mixed data stream, and the M-way mapped data stream is obtained.

According to a sixth possible implementation manner, in a seventh possible implementation manner, the M is 2, where the symbol of any one of the mixed data streams in the M-channel mixed data stream is in a half pulse And de-mixing the symbols of the M-channel mixed data stream, and acquiring the M-way mapping data stream, specifically:

And dividing, in the M-way mixed data stream, a symbol of one mixed data stream within one pulse of one pulse and another mixed data stream of the M mixed data stream within the half pulse of the one pulse Symbols are exchanged.

According to a sixth possible implementation manner, in an eighth possible implementation manner, the M-channel is a unit of a symbol of a mixed data stream in the M-channel mixed data stream in a half pulse. The symbols of the mixed data stream are de-mixed to obtain the M-way mapping data stream, and the method specifically includes: using the symbol of any one of the mixed data streams in the M-channel mixed data stream in a half pulse, and the M road The mixed data stream is demixed by symbols within 4 pulses of a coded block.

According to an eighth possible implementation manner, in a ninth possible implementation manner, the M is 4, the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3; The number of symbols in each pulse of the mapped data stream in the stream is N, and the N is a positive integer; The M-way mixed data stream includes mixed data streams C0, Cl, C2, and C3;

Decoupling the symbols of the M-channel mixed data stream in four pulses of one coding block by using a symbol of one of the mixed data streams in the M-channel mixed data stream in a half pulse. Includes:

Extracting symbols of the 4*nth half pulse position of the mixed data stream CO in the one coding block, and the mixed data stream C1 is 4*n+l half in the one coding block a symbol of a pulse position, a symbol of the 4*n+2 half-pulse position of the mixed data stream C2 in the one coding block, and a 4th* of the mixed data stream C3 in the one coding block. a symbol of n+3 half-pulse positions, which are sequentially placed in the one coding block of the mapping data stream X0;

Extracting symbols of the 4*nth half pulse position of the mixed data stream C3 in the one coding block, and the 4*n+l half of the mixed data stream CO in the one coding block a symbol of a pulse position, a symbol of the 4*n+2 half-pulse position of the mixed data stream C1 in the one coding block, and a 4th* of the mixed data stream C2 in the one coding block. a symbol of n+3 half-pulse positions, which are sequentially placed in the one coding block of the mapping data stream XI;

Extracting symbols of the 4*nth half-pulse position of the mixed data stream C2 in the one coding block, and the mixed data stream C3 is 4*n+l half in the one coding block a symbol of a pulse position, a symbol of the 4*n+2 half-pulse position of the mixed data stream CO in the one coding block, and a 4th* of the mixed data stream C1 in the one coding block a symbol of n+3 half-pulse positions, which are sequentially placed in the one coding block of the mapping data stream X2;

Extracting symbols of the 4*nth half pulse position of the mixed data stream C1 in the one coding block, and the 4*n+l half of the mixed data stream C2 in the one coding block a symbol of a pulse position, a symbol of the 4*n+2 half-pulse position of the mixed data stream C3 in the one coding block, and a 4th* of the mixed data stream CO in the one coding block a symbol of n+3 half-pulse positions, which are sequentially placed in the one coding block of the mapped data stream X3;

Where n is an integer and η = 0, 1. According to the first possible implementation manner, in a tenth possible implementation manner, the terminal de-mixing the M-channel mixed data stream, and generating the M-way mapping data stream, specifically includes: The symbol of any one of the mixed data streams in the mixed data stream is a unit of symbols within one pulse, and the symbols of the M mixed data streams within 4 pulses of one coding block are demixed.

According to the tenth possible implementation manner, in an eleventh possible implementation manner, the M is

2, wherein the symbols of the M-channel mixed data stream in one pulse of one of the M-channel mixed data streams are de-interleaved in a symbol of one pulse of one code block, Specifically include:

Within each of the four pulses of one code block, every other pulse exchanges symbols within one pulse of the M-way mixed data stream.

According to the tenth possible implementation manner, in a twelfth possible implementation manner, the M is equal to 4, and the M-channel mixed data stream includes mixed data streams C0, Cl, C2, and C3, and the M-way mapping The data stream includes mapping data streams X0, XI, X2, and X3; the plurality of mixed data streams in the M-way mixed data stream are in units of symbols in one pulse, and the M-channel mixed data stream is encoded in one The symbols in the 4 pulses of the block are de-mixed, including:

Extracting a symbol of a 0th pulse position of the mixed data stream CO in the one coding block, a symbol of a first pulse position of the mixed data stream C1 in the one coding block, the mixed data stream C2 is a symbol of a second pulse position in the one coding block, and a symbol of the third pulse position of the mixed data stream C3 in the one coding block is sequentially placed in the mapping data stream X0. Said within a coded block;

Extracting a symbol of a 0th pulse position of the mixed data stream C3 in the one coding block, a symbol of a first pulse position of the mixed data stream CO in the one coding block, the mixed data stream C1 is a symbol of a second pulse position in the one coding block, and a symbol of the third pulse position of the mixed data stream C2 in the one coding block is sequentially placed in the mapping data stream XI Said within a coded block; Extracting a symbol of a 0th pulse position of the mixed data stream C2 in the one coding block, a symbol of a first pulse position of the mixed data stream C3 in the one coding block, the mixed data stream a symbol of a second pulse position of the CO in the one coding block, and a symbol of the third pulse position of the mixed data stream C1 in the one coding block is sequentially placed in the mapping data stream X2 Said within a coded block;

Extracting a symbol of a 0th pulse position of the mixed data stream C1 in the one coding block, a symbol of a first pulse position of the mixed data stream C2 in the one coding block, the mixed data stream C3 is a symbol of a second pulse position in the one coding block, and a symbol of the third pulse position of the mixed data stream CO in the one coding block is sequentially placed in the mapping data stream X3 Said within a coding block.

In a sixth aspect, a terminal provided by the embodiment of the present invention includes:

a receiving unit, configured to receive an M-channel mixed data stream sent by the network side device, where M is a positive integer greater than one;

An acquiring unit, configured to acquire a channel quality of the M-channel mixed data stream received by the receiving unit;

And a sending unit, configured to obtain a channel quality of the one-way mapped data stream according to the channel quality of the M-channel mixed data stream acquired by the acquiring unit, and send the channel quality to the network side device by using a measurement report.

According to the sixth aspect, in a first possible implementation, the terminal further includes: a de-mixing unit, configured to perform de-mixing the M-channel mixed data stream received by the receiving unit, and generate M-way mapping data. flow.

Based on the first possible implementation manner, in a second possible implementation manner, the de-mixing unit is specifically configured to:

Based on the second possible implementation manner, in a third possible implementation manner, the de-mixing The unit is also specifically used to:

The de-mixing unit is specifically configured to:

Extracting symbols of the 3*nth position of the mixed data stream C1 in the one pulse, the symbol of the 3*n+l position in the mixed data stream C2 in the one pulse, the mixed data stream a symbol of the 3*n+2 positions of the CO in the one pulse, which are sequentially placed in the one pulse of the mapping data stream X2;

Wherein n is an integer, n=0, 1, 2, ..., N/3-l.

According to a second possible implementation manner, in a fifth possible implementation manner, the M is equal to 4, the M-channel mixed data stream includes mixed data streams CO, Cl, C2, and C3, and the M-channel hybrid The number of symbols in each of the mixed data streams in the data stream is N, and the N is a positive integer; the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3; The de-mixing unit is specifically configured to:

Extracting symbols of the 4*nth position of the mixed data stream C2 in the one pulse, the symbol of the 4*n+l position in the mixed data stream C3, the mixed data stream a symbol of the 4th*n+2th position of the CO in the one pulse, and the symbol of the 4*n+3th position of the mixed data stream C1 in the one pulse is sequentially placed in the mapping data stream X2 Within one of the pulses;

Extracting symbols of the 4*nth position of the mixed data stream C1 in the one pulse, the symbol of the 4*n+l position in the mixed data stream C2, the mixed data stream C3 is a symbol of the 4th*n+2th position in the one pulse, and the symbol of the 4*n+3th position of the mixed data stream CO in the one pulse is sequentially placed in the mapping data stream X3. Within one of the pulses;

Where n is a positive integer, n=0, 1 , ··. , N/4-1.

Based on the first possible implementation manner, in a sixth possible implementation manner, the de-mixing unit is specifically configured to:

Taking the symbol of any one of the mixed data streams in the M-way mixed data stream in half pulse, The symbols of the M-channel mixed data stream are de-mixed to obtain the M-way mapped data stream.

Based on the sixth possible implementation manner, in a seventh possible implementation manner, the M is 2, and the de-mixing unit is specifically configured to:

Based on the sixth possible implementation manner, in the eighth possible implementation manner, the de-mixing unit is specifically configured to:

The symbols of the M-way mixed data stream in the four pulses of one coding block are de-mixed in units of symbols in the half-pulse of the mixed data stream in the M-channel mixed data stream.

According to an eighth possible implementation manner, in a ninth possible implementation manner, the M is 4, the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3; Each of the mapped data streams in the stream has a number of symbols in a pulse of N, and the N is a positive integer; the M-way mixed data stream includes mixed data streams C0, Cl, C2, and C3;

The de-mixing unit is specifically configured to:

Extracting symbols of the 4*nth half pulse position of the mixed data stream C3 in the one coding block, and the 4*n+l half of the mixed data stream CO in the one coding block a symbol of a pulse position, a symbol of the 4*n+2 half-pulse position of the mixed data stream C1 in the one coding block, and a 4th* of the mixed data stream C2 in the one coding block. a symbol of n+3 half-pulse positions, which are sequentially placed in the one coding block of the mapping data stream XI; Extracting symbols of the 4*nth half-pulse position of the mixed data stream C2 in the one coding block, and the mixed data stream C3 is 4*n+l half in the one coding block a symbol of a pulse position, a symbol of the 4*n+2 half-pulse position of the mixed data stream CO in the one coding block, and a 4th* of the mixed data stream C1 in the one coding block a symbol of n+3 half-pulse positions, which are sequentially placed in the one coding block of the mapping data stream X2;

Where n is an integer and η = 0, 1.

Based on the first possible implementation manner, in the tenth possible implementation manner, the de-mixing unit is specifically configured to:

The symbols of the M-way mixed data stream in the four pulses of one coding block are de-mixed in units of symbols in one pulse of the M-channel mixed data stream.

According to the tenth possible implementation manner, in an eleventh possible implementation manner, the M is 2, and the de-mixing unit is specifically configured to:

According to the eleventh possible implementation manner, in a twelfth possible implementation manner, the M is equal to 4, and the M-channel mixed data stream includes mixed data streams C0, Cl, C2, and C3, and the M-way The mapping data stream includes mapping data streams X0, XI, X2, and X3; the de-mixing unit is specifically configured to: extract a symbol of a 0th pulse position of the mixed data stream CO in the one coding block, the mixing a symbol of a first pulse position of the data stream C1 within the one code block, a symbol of a second pulse position of the mixed data stream C2 within the one code block, the mixed data stream a symbol of a third pulse position of the C3 in the one coding block, which is sequentially placed in the one coding block of the mapping data stream X0;

Extracting a symbol of a 0th pulse position of the mixed data stream C3 in the one coding block, a symbol of a first pulse position of the mixed data stream CO in the one coding block, the mixed data stream a symbol of C1 at a second pulse position within the one coded block, the mixed data stream

The symbol of the third pulse position of C2 in the one code block is sequentially placed in the one code block of the mapped data stream XI;

Extracting a symbol of a 0th pulse position of the mixed data stream C2 in the one coding block, a symbol of a first pulse position of the mixed data stream C3 in the one coding block, the mixed data stream a symbol of a second pulse position of the CO within the one code block, the mixed data stream

The symbol of the third pulse position of C1 in the one code block is sequentially placed in the one code block of the mapped data stream X2;

Extracting a symbol of a 0th pulse position of the mixed data stream C1 in the one coding block, a symbol of a first pulse position of the mixed data stream C2 in the one coding block, the mixed data stream C3 a symbol of a second pulse position within the one coded block, the mixed data stream

The symbols of the CO at the third pulse position within the one code block are sequentially placed in the one code block of the mapped data stream X3.

According to the foregoing embodiment, the M-channel initial data stream is modulated and coded according to a modulation and coding manner, to obtain an M-channel modulated data stream, where M is a positive integer greater than 1, and M is not greater than the number of antennas; The modulated data stream is separately symbol-mapped to generate an M-way mapped data stream;

The M-channel mapped data streams are mixed to generate an M-channel mixed data stream, so that the base station mixes the mapped data streams as evenly as possible in the M-channel mixed data stream, and then transmits them to the terminals on different antennas, so that the terminals receive through different antennas. The obtained data is a mixed mixed data stream. After the symbols in the mixed data stream are restored to the mapped data stream, the channel quality of each of the obtained mapped data streams is substantially the same, so the terminal only needs to report the channel of one mapped data stream. Quality, reduced feedback DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are merely the present invention. Some of the embodiments can be obtained by those skilled in the art from the drawings without any inventive labor.

1 is a schematic flowchart of sending data by a base station in a prior art;

2 is a schematic structural diagram of a mobile communication method according to an embodiment of the present invention;

3 is a flowchart of a mobile communication method according to an embodiment of the present invention;

4 is a schematic diagram of an effect of an embodiment of a mobile communication method according to an embodiment of the present invention; FIG. 5 is a schematic diagram of an effect of an embodiment of a mobile communication method according to an embodiment of the present invention; FIG. 7 is a schematic diagram of an effect of an embodiment of a mobile communication method according to an embodiment of the present invention; FIG. 8 is a schematic diagram of an effect of an embodiment of a mobile communication method according to an embodiment of the present invention; 9 is a schematic diagram of an effect of an embodiment of a mobile communication method according to an embodiment of the present invention; FIG. 10 is a schematic diagram of an effect of an embodiment of a mobile communication method according to an embodiment of the present invention; FIG. 12 is a block diagram of a mobile communication device according to an embodiment of the present invention; FIG. 13 is a block diagram of an embodiment of a mobile communication system according to an embodiment of the present invention; FIG. 14 is a flowchart of another mobile communication method according to an embodiment of the present invention;

FIG. 15 is a flowchart of still another mobile communication method according to an embodiment of the present invention;

FIG. 16 is a schematic structural diagram of another mobile communication apparatus according to an embodiment of the present invention; FIG. 17 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

FIG. 18 is a hardware structural diagram of a mobile communication apparatus according to an embodiment of the present invention; FIG. FIG. 19 is a hardware structural diagram of a terminal according to an embodiment of the present invention. detailed description

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

2 is a processing state reference diagram of a mobile communication method according to an embodiment of the present invention. The base station side includes 0 to M-1 total M antennas, and each antenna can transmit downlink to the terminal in the MIMO subchannel under the control of the base station. Data, the terminal includes but is not limited to a user equipment such as a mobile phone. When the base station sends data for the first time, the base station first modulates and encodes the initial data stream to be transmitted according to the default modulation and coding mode to obtain a modulated data stream, and then generates a M-way mapping data stream X0 to X (M-1) through symbol mapping. After the M-way mapped data stream is uniformly mixed, the M-channel mixed data stream CO is generated to C (M-1) and transmitted through different antennas. Specifically, each mixed data stream may be combined with different training sequences TSC(0) to TSC(M-1) according to different transmitting antennas, and each of the mixed data streams is combined with a respective training sequence to perform pulse mapping and phase rotation respectively. After that, pulse shaping is performed and transmitted from the corresponding antenna to the terminal.

As shown in FIG. 3, based on the above core idea, an embodiment of the present invention provides a mobile communication method, where the method includes:

301. Modulate and encode an initial data stream of the M channel according to a modulation and coding manner, to obtain an M-channel modulated data stream, where M is a positive integer greater than 1, and M is not greater than the number of antennas.

The initial data stream refers to the data stream before modulation and coding, and may be a bit data stream, which is limited; the M channel initial data stream is separately modulated and coded by the same modulation and coding method.

It should be noted that, when the initial data stream is sent by the base station for the first time, the M channel initial data stream may be modulated and coded by using a preset modulation and coding manner. The preset modulation and coding mode may be preset in the base station or may be input through The device is configured.

The number of the above M is not greater than the number of antennas, that is, M is not greater than the number of antennas of the base station. 302. Perform symbol mapping on the M-channel modulated data streams to generate an M-way mapping data stream. 303. Mix the M-way mapping data streams to generate an M-channel mixed data stream.

Specifically, the base station mixes the symbol mapped mapped data streams so that the symbols in the M-way mapped data stream are mixed as uniformly as possible in the mixed data stream, so that symbols in different mapped data streams can be in different antennas. Send on.

304: Send the M-channel mixed data stream to the terminal on different antennas.

In step 304, the M-channel mixed data stream can be subjected to pulse mapping, phase rotation, and pulse shaping processing on the M-channel mixed data stream before being transmitted to the terminal through different antennas, which is a prior art and will not be described herein.

305. The carrier-to-interference ratio of the one-way mapping data stream obtained and fed back by the receiving terminal according to the carrier-to-interference ratio of the M-channel mixed data stream.

Specifically, after receiving the data sent by the base station, the terminal feeds back a measurement report to the base station according to the received data, where the measurement report includes a carrier-to-interference ratio, that is, a ratio of the useful signal strength on the channel to the interference signal strength. In step 303, the base station transmits and transmits the mixed data stream through different antennas, so that the carrier-to-interference ratio of each mixed data stream received by the terminal is greatly different, but since the mixed data stream is a mixture of the multiplexed data streams, After the terminal restores the symbols in each mixed data stream to the unmixed mapped data streams, the obtained carrier data ratio of each mapped data stream is basically the same, so the terminal only needs to upload the carrier-to-interference ratio of the mapped data stream. The carrier-to-interference ratio of all mapped data streams can be reflected for the base station to determine the modulation and coding scheme.

It should be understood that the manner in which the terminal acquires the carrier-to-interference ratio of the mapped data stream may have various options. For example, the terminal averages the carrier-to-interference ratio of the M-channel mixed data stream, and the average value is used as a one-way mapping data stream. The carrier-to-interference ratio; the terminal may also de-mix the received M-channel mixed data stream, restore the mixed data stream to the M-way mapping data stream without mixing, and then calculate the carrier-to-interference ratio of one of the mapped data streams. The M-way may be used to map any one of the data streams. The terminal may also select a CIR with the largest or smallest CIR to be reported to the base station in the M-way mapping data stream obtained after the de-mixing, which is not limited herein. 306. Determine a modulation and coding manner according to the carrier-to-interference ratio of the one-way mapping data stream.

Specifically, after receiving the carrier-to-interference ratio of the feedback of the terminal, the base station determines a modulation and coding mode for different carrier-to-interference ratios, where the modulation and coding mode is used for modulation coding of the initial data stream to be transmitted next time, for example, the carrier is relatively poor. Then select the encoding method with a small bit rate.

Through the foregoing embodiment, the base station separately mixes the symbol mapped mapping data streams in the mixed data stream, and then sends them to the terminal respectively on different antennas, so that the data received by the terminal through different antennas is mixed. After the mixed data stream is restored to the mapped data stream, the carrier-to-interference ratio of each mapped data stream is substantially the same, so the terminal only needs to report the carrier-to-interference ratio of the mapped data stream for the base station to base the terminal. The carrier code ratio of the reported one-way mapped data stream is selected by the modulation coding mode of the subsequent initial data stream, and the amount of feedback information is reduced. At the same time, multiple initial data streams adopt the same modulation and coding mode, and a higher throughput rate can be obtained.

In the following, in the step 303, several specific embodiments in which the base station mixes the mapped data streams will be described.

Manner 1: The base station mixes the symbols of the route map data stream in units of a single symbol to obtain a loop mixed data stream.

For example, when Μ=2, every other symbol exchanges the symbols at the same position of the two mapped data streams to obtain two mixed data streams.

For the mapped data stream Χ0 and the mapped data stream XI, assume that the number of symbols in one pulse (burst) of one mapped data stream is N, and the sign of X0 in one pulse is [X0(0), X0(1), . .. ... XO(Nl)], the sign of XI in a pulse is [X1(0), Xl(l), ... Xl(Nl)], then every other symbol pair maps data streams X0 and XI The symbols at the same position are exchanged, and the mixed two-way mixed data streams CO and C1 are obtained as follows:

C0=[X0(0), Xl(l), X0(2), Xl(3), · · ·, X0(N-2), Xl(N-l)] ,

C1=[X1(0), X0(1), Xl(2), X0(3), Xl(N-2), X0(N-1)].

In Figure 4, the CIR of the 2-way mapped data stream is compared with the CIR of the 2-way mixed data stream. Wherein, the dice channel 0 corresponds to the antenna 0, and the dice channel 1 corresponds to the antenna 1. The left side is the carrier-to-interference ratio of the mapped data stream that is not mixed, and the right side is the carrier-to-interference ratio of the mixed data stream mixed according to the above embodiment. It can be seen that the CIR of the prior art 2-way mapped data stream is different, but After the symbols are mixed for the elements, for the symbols in the mapped data stream Χ0, for example, Χ0(0) and Χ0(1), although the CIR difference between the symbols is large, the CIRs of the mapped data streams Χ0 and XI are approximately the same as a whole. Therefore, the terminal only needs to feed back the CIR of the mapped data stream to the base station to reflect the carrier-to-interference ratio of all mapped data streams, thereby saving feedback overhead.

Suppose that the number of symbols in a pulsed data stream is Ν, when the number of mapped data streams and mixed data streams is 3, the mapped data stream is Χ0, XI, Χ2, and the following is a single symbol, and the road mapping data is The streams 0, XI, and Χ2 are mixed in a pulse, and the mixed data streams C0, Cl, and C2 are obtained. The specific examples are as follows:

From the mapped data stream X0, one symbol is taken in the symbol within the one pulse, and then placed in the 3*nth position of the mixed data stream CO in the one pulse, and the mixed data stream C1 is in the first pulse. 3*n+1 positions, the mixed data stream C2 is at the 3*n+2 positions within the one pulse;

It should be noted that each time a symbol is fetched from the mapped data stream, in a preferred embodiment, the symbols are fetched in the order agreed by the terminal and the base station, and the symbols fetched each time are not duplicated with the symbols that have been fetched, but As long as the rule setting of the symbol is taken out between the terminal and the base station, the order in which each symbol is taken out is not limited.

From the mapped data stream XI, one symbol is taken at a time in the symbol of the one pulse, and then placed in the 3*nth position of the mixed data stream C2 in the one pulse, and the mixed data stream CO is in the first pulse. 3*n+1 positions, the mixed data stream C1 is at the 3*n+2 positions in the one pulse;

From the mapped data stream X2, one symbol is taken in the symbol in the one pulse at a time, and is placed in the 3*nth position of the mixed data stream C1 in the one pulse in turn, and the mixed data stream C2 is in the one At the 3*n+1th position in the pulse, the mixed data stream CO is at the 3*n+2 positions in the one pulse. In the above embodiment, n is a positive integer, η=0,1, .. ·Ν / 3-1;

Thereby obtaining three mixed data streams CO, Cl, C2:

C0=[X0(0), Xl(l), X2(2), X0(3), X1(4), X2(5),...],

C1=[X2(0), X0(1), Xl(2), X2(3), X0(4), X1(5),...],

C2=[X1(0), X2(l), X0(2), Xl(3), Χ2(4), Χ0(5), · · ·].

It should be noted that if the mapping data stream Χ0, XI, Χ2 is not an integer multiple of 3, it can be processed in various ways, which is not limited herein. For example, to define NIL as an invalid character symbol, add as few NIL as possible at the end of the mapped data streams X0, XI, and X2, so that the length of the mapped data stream is rounded to an integral multiple of three, and the number of symbols N in the above one pulse is The number of symbols including the NIL symbol added in the pulse; after the mixing is completed, all the NIL symbols in the mixed data stream C0, C1, C2 are deleted; for example, only the integer multiple of 3 in N is taken. After the above processing, the remaining characters are directly placed in the corresponding mixed data stream.

As shown in FIG. 5, (a) is the carrier-to-interference ratio of the 3-way mapped data stream in the prior art; (b) is the carrier-to-interference ratio of the 3-way mixed data stream. The MIMO subchannel 0 corresponds to the antenna 0, the MIMO subchannel 1 corresponds to the antenna 1, the MIMO subchannel 2 corresponds to the antenna 2, and the three mixed data streams are obtained by mixing the three mapping data streams. It can be seen from Fig. 5 that the carrier-to-interference ratios of the three-way mapped data streams obtained by de-mixing the mixed data streams in (b) are approximately the same.

Assume that the number of symbols in one pulse of a mapped data stream is N. When M is equal to 4, the symbols of the M-way mapped data streams X0, XI, X2, and X4 are mixed in a single symbol to obtain M-channel mixed data. Flows C0, Cl, C2, C4 are illustrated as follows:

From the mapped data stream X0, one symbol is taken at a time in the symbol of one pulse, and is sequentially placed in the 4*nth position of the mixed data stream C0 in the one pulse, and the fourth stream of the mixed data stream C1 in the one pulse** n + l positions, the mixed data stream C2 is at the 4th *n + 2 positions in the one pulse, and the mixed data stream C3 is at the 4th *n + 3 positions in the one pulse; It should be noted that each time a symbol is fetched from the mapped data stream, in a preferred embodiment, the symbols are fetched in the order agreed by the terminal and the base station, and the symbols fetched each time are not duplicated with the symbols that have been fetched, but As long as the rule setting of the symbol is taken out between the terminal and the base station, the order in which each symbol is taken out is not limited.

From the mapped data stream XI, one symbol is taken at a time in the symbol within one pulse, and placed in the 4*nth position of the mixed data stream C3 in the one pulse in turn, and the fourth stream of the mixed data stream CO in the one pulse** n+1 positions, the mixed data stream C1 is at the 4*n+2 positions in the one pulse, and the mixed data stream C2 is at the 4*n+3 positions in the one pulse;

From the mapped data stream X2, one data is taken at a time in the symbol within the one pulse, and placed in the 4*n position of C2 in the one pulse in turn, and the 4*n+ of the mixed data stream C3 in the one pulse. l position, mix 4*n+2 positions of the data stream CO, and mix 4*n+3 positions of the data stream C1;

From the mapped data stream X3, one data is taken at a time in the symbol within the one pulse, and sequentially placed in the 4*nth position of the mixed data stream C1 within the one pulse, and the mixed data stream C2 is 4th in the one pulse. *n + 1 positions, mixed data stream C3 is at 4*n+2 positions within the one pulse, and mixed data stream CO is at 4*n+3 positions within the one pulse.

In this embodiment, n is a positive integer, and n = 0, 1, 3, ... N/4-1, resulting in a four-way mixed data stream C0, Cl, C2, C4:

C0=[X0(0), Xl(l), X2(2), X3(3), X0(4), X1(5), X2(6),...] ,

C1=[X3(0), X0(1), Xl(2), X2(3), X3(4), X0(5), Xl(6),...] ,

C2=[X2(0), X3(l), X0(2), Xl(3), X2(4), X3(5), X0(6),...] ,

C3=[X1(0), X2(l), X3(2), X0(3), X1(4), X2(5), X3(6),...]„

Similarly, when M is equal to 4, the mapped data stream is X0, XI, X2, X4. If the mapped data stream X0, XI, X2, X3 is not an integer multiple of 4, for example, NIL can be defined as an invalid character symbol, respectively Add as few NIL as possible to the end of the mapped data stream to make an integer multiple of 4, the above one The number N of symbols in the pulse is the number of symbols including the NIL symbol added in the pulse. After the mixing is completed, all the NIL symbols in the mixed data streams C0, C1, C2, and C3 are deleted. No restrictions.

As shown in FIG. 6, (a) is a carrier-to-interference ratio of a 4-way mapped data stream, and (b) is a carrier-to-interference ratio of the mixed data stream obtained by mixing the 4-way mapped data stream by the above manner, and it can be seen that although 4-way mixing is performed The carrier-to-interference ratio of the data stream is different, but after the de-mixing, the carrier-to-interference ratio of the mapped data stream before reverting to no mixing is approximately the same, not much praise.

In the second method, the symbols of the M-way mapping data stream are mixed in units of symbols of the one-way mapped data stream in the M-way mapping data stream, and the M-channel mixed data stream is obtained.

For example, when M is 2, the base station can exchange symbols of one of the M-mapped data streams in the half of the pulse of the one pulse.

Assuming that the number of symbols in one pulse of a mapped data stream is N, the symbols in the mapped data streams X0 and XI are exchanged in units of symbols within a half pulse, and the following two mixed data streams CO and C1 can be obtained. :

C0=[X0(0" .., N/2-1), Χ1(Ν/2,..., N-l)] ,

C1=[X1(0" .., N/2-1), X0(N/2,..., N-l)].

As shown in Fig. 7, (a) is the CIR of the mapped data stream, and (b) is the CIR of the mixed data stream in which the mapped data stream is mixed by the above embodiment. MIMO subchannel 0 corresponds to antenna 0, and MIMO subchannel 1 corresponds to antenna 1. It can be seen from (b) that although the CIR of the two mixed data streams is very different, the CIRs of the mapped data streams X0 and XI are approximately the same as a single burst. Therefore, the terminal only needs to The base station feeds back the carrier-to-interference ratio of the mapped data stream obtained by demultiplexing, and can reflect the carrier-to-interference ratio of all the data streams, thereby saving feedback overhead.

Manner 3, the symbol of the data stream in any one of the M-way mapping data streams in a half pulse The number is a unit, and the symbols of the M-way mapping data stream in four pulses of one coding block are mixed to obtain an M-channel mixed data stream.

For example, when the number of mapped data streams and mixed data streams is 4, that is, M is 4, and the mapped data streams are X0, XI, X2, and X4, assuming that X0 (0, 0) represents the 0th of the mapped data stream X0. The first half of the pulse, Χ0 (0,1) represents the second half of the 0th pulse corresponding to the mapped data stream ,0, and the rest is similar, the number of symbols in one pulse of the one-way mapped data stream is Ν, Combining symbols of the plurality of data streams in four pulses of one coding block in units of symbols in one half of the mapped data stream to obtain a plurality of mixed data streams C0, Cl, C2, C4 Specifically, including:

From the mapped data stream X0, the symbols in the half pulse of each of the four pulses of the one coding block are sequentially placed in the fourth*n half pulse position of the mixed data stream CO in the one coding block. The mixed data stream C1 is at the 4th*n+1th half burst position of the one coded block, and the mixed data stream C2 is at the 4th*n+2th half pulse position of the one coded block, and the mixed data stream C3 At the 4th + 3th half pulse position of the one coding block;

It should be noted that, in the preferred embodiment, the symbols in the half pulse are taken out from the mapped data stream. In the preferred embodiment, the symbols are taken out in the order agreed by the terminal and the base station, and the symbols that are taken out each time are the symbols that have been taken out. It is not repeated, however, as long as the rule setting of the symbol is taken out between the terminal and the base station, the order in which each symbol is taken out is not limited.

From the mapped data stream XI, the symbols corresponding to one half of the four pulses of the one coding block are sequentially placed, and the mixed data stream C3 is sequentially placed at the 4th to nth half pulse positions of the one coding block, and mixed. The data stream CO is at the 4th*n+1th half pulse position of the one coding block, and the mixed data stream C1 is at the 4th*n+2th half pulse position of the one coding block, and the mixed data stream C2 is at 4*n+3 half-pulse positions of the one coding block;

From the mapped data stream X2, the symbols corresponding to one half of the four pulses of the one coding block are sequentially placed, and the mixed data stream C2 is sequentially placed in the 4th to the nth half pulse bits of the one coding block. The mixed data stream C3 is at the 4th*n+1th half pulse position of the one coding block, and the mixed data stream CO is mixed at the 4th*n+2th half pulse position of the one coding block. The stream C1 is at a 4*n+3 half-pulse position of the one coding block;

From the mapped data stream X3, the symbols corresponding to one half of the four pulses of the one coding block are sequentially placed, and the mixed data stream C1 is sequentially placed at the 4th to nth half pulse positions of the one coding block, and mixed. The data stream C2 is at the 4th*n+1th half pulse position of the one coding block, and the mixed data stream C3 is at the 4th*n+2th half pulse position of the one coding block, and the mixed data stream CO is The 4*n+3 half-pulse positions of the one code block.

In this embodiment, where n is an integer, η=0,1, thereby obtaining four mixed data streams C0, Cl, C2, C4:

C0=[X0(0,0), X1(0,1), X2(l,0), X3(l,l), X0(2,0), Xl(2,l), X2(3,0 ), X3(3,l)] , C1=[X3(0,0), X0(0,1), X1(1,0), X2(l,l), X3(2,0), X0( 2,l), Xl(3,0), X2(3,l)] , C2=[X2(0,0), X3(0,l), X0(1,0), Xl(l,l) , X2(2,0), X3(2,l), X0(3,0), Xl(3,l)] , C3=[X1(0,0), X2(0,l), X3(l , 0), X0(1,1), XI (2,0), X2(2,l), X3(3,0), X0(3,l)]. As shown in Fig. 8, (a) is the carrier-to-interference ratio of the mapped data stream, and (b) is the carrier-to-interference ratio of the mixed data stream generated by mixing the four-way mapped data stream in the above manner. It can be seen that the carrier-to-interference ratio of the four-way mixed data stream is different in (b), but after the de-mixing, the carrier-to-interference ratio of the mapped data stream before being restored to the same is approximately the same, and will not be repeated.

Manner 4: mixing symbols of the M-channel mapping data stream in four pulses of one coding block in units of symbols in one pulse of the M-channel mapping data stream.

Since the GERAN system consists of four pulses forming a code block, it can also be exchanged in units of the entire pulse in one code block, that is, in every four pulses of one code block, every other pulse pair M path. The mapped data streams are exchanged.

For example, when the number of mapped data streams is 2, X0(0), X0(1), X0(2), and X0(3) are data respectively. The data of the four bursts corresponding to the stream X0, X1(0), X1(1), X1(2), and Xl(3) are the data of the four bursts corresponding to the data stream XI, respectively. Then every other burst exchanges data streams X0 and XI, and the corresponding mixed data streams CO and C1 are:

C0=[X0(0), Xl(l), X0(2), Xl(3)],

C1=[X1(0), X0(1), Xl(2), X0(3)].

Figure 9, (a) is the CIR of the 2-way mapped data stream in 4 bursts, and (b) is the CIR of the mixed data stream generated after mixing in the above four bursts. In (b), from the map data stream X0 or XI, the pulse burst is mixed. In the same map data stream, although the CIR difference between the single pulse bursts is large, the four pulse bursts are taken as a whole. The CIRs of the mapped data streams X0 and XI are approximately the same. Therefore, the terminal only needs to feed back the CIR of the mapped data stream to the base station to reflect the carrier-to-interference ratio of all the data streams, thereby saving feedback overhead.

When the number of mapped data streams is 4, that is, M = 4, the mapped data streams X0, XI, X2, and X3 of the four code bursts are mixed in units of pulse bursts. Assume that Xm(0), Xm(l), Xm(2), and Xm(3) are the data of four pulse bursts corresponding to the mapping data stream Xm, m=0, l, 2, 3;

One pulse data is sequentially taken from the four pulses of the one coding block from the mapping data stream X0, and sequentially placed in the mixed data stream CO at the 0th pulse position of the one coding block, and the mixed data stream C1 is in the At the first pulse position of a coded block, the mixed data stream C2 is at the second pulse position of the one code block, and the mixed data stream C3 is at the third pulse position of the one code block.

It should be noted that the symbols in one pulse are taken out from the mapped data stream. In the preferred embodiment, the symbols are taken out in the order agreed by the terminal and the base station, and the symbols that are taken out each time are not the symbols that have been taken out. Repeat, however, as long as the rule setting of the symbol is taken out between the terminal and the base station, the order in which each symbol is taken out is not limited.

From the mapped data stream XI, one pulse data is sequentially taken from the four pulses of the one coding block, and sequentially placed at the 0th pulse position of the C3 at the C1, and the mixed data stream CO is in the The first pulse position of a coded block, the mixed data stream C1 at the second pulse position of the one code block, and the mixed data stream C2 at the third pulse position of the one code block.

One pulse data is sequentially taken from the four pulses of the one coding block from the mapped data stream X2, and sequentially placed in the mixed data stream C2 at the 0th pulse position of the one coding block, and the mixed data stream C3 is in the The first pulse position of a coded block, the mixed data stream CO is at the second pulse position of the one code block, and the mixed data stream C1 is at the third pulse position of the one code block.

Taking one pulse data sequentially from the four pulses of the one coding block from the mapping data stream X3, and sequentially placing the mixed data stream C1 at the 0th pulse position of the one coding block, and mixing the data stream C2 in the At the first pulse position of a coded block, the mixed data stream C3 is at the second pulse position of the one code block, and the mixed data stream CO is at the third pulse position of the one code block.

Thereby obtaining four mixed data streams C0, Cl, C2, C3:

C0=[X0(0), Xl(l), X2(2), X3(3)],

C1=[X3(0), X0(1), Xl(2), X2(3)],

C2=[X2(0), X3(l), X0(2), Xl(3)],

C3=[X1(0), X2(l), X3(2), X0(3)].

As shown in FIG. 10, (a) the CIR of the 4-way mapped data stream, (b) is the carrier-to-interference ratio of the mixed data stream generated by the 4-way mapped data stream mixed by the above manner, and can be seen by comparison, (b) The data-to-interference ratio of the mapped data stream after the hybrid data stream de-mixing is approximately the same, and will not be repeated.

It should be noted that the foregoing embodiment is only an alternative method for mixing the mapped data streams, and the user may select different data stream mixing manners according to actual requirements, and similar effects may also be obtained, which are all in the embodiment of the present invention. Within the technical scope.

Correspondingly, as shown in FIG. 11, the embodiment of the present invention further provides a mobile communication device, where the device may be a base station, and the device 110 includes:

The coding unit 115 is configured to perform modulation coding on the M channel initial data stream according to the modulation and coding manner to obtain an M-channel modulated data stream, where M is a positive integer greater than 1, and M is not greater than the number of antennas; The mapping unit 111 is configured to perform symbol mapping on the M-channel modulated data stream obtained by the encoding unit 115, generate an M-way mapping data stream, and send the data to the mixing unit 112;

The mixing unit 112 is configured to mix the M-way mapping data streams received from the mapping unit 111 to generate an M-way mixed data stream;

The sending unit 113 is configured to send the M-channel mixed data stream generated by the mixing unit 112 to the terminal on different antennas;

The receiving unit 114 is configured to receive, by the terminal, a carrier-to-interference ratio of a one-way mapping data stream that is acquired and fed back by the terminal according to a carrier-to-interference ratio of the M-channel mixed data stream;

The encoding unit 115 is further configured to determine the modulation and coding mode according to the carrier-to-interference ratio of the one-way mapping data stream received from the receiving unit 114.

The hybrid data stream may be subjected to pulse mapping, phase rotation, and pulse shaping processing for each of the mixed data streams before being sent by the transmitting unit 113. The prior art is not described herein. It should be understood that the manner in which the terminal acquires the carrier-to-interference ratio of the mapped data stream may have various options. For example, the terminal averages the carrier-to-interference ratio of the M-channel mixed data stream, and the average value is used as a one-way mapping data stream. The carrier-to-interference ratio; the terminal may also de-mix the received M-channel mixed data stream, restore the mixed data stream to the M-way mapping data stream without mixing, and calculate the carrier-to-interference ratio of one of the mapped data streams. Any one of the data streams can be mapped to the M path, which is not limited herein.

In an embodiment, the mixing unit 112 is further configured to: mix, in units of a single symbol, symbols of the M-way mapping data stream in one pulse to obtain the M-channel mixed data stream.

Further, the mixing unit 112 is specifically configured to:

When M is equal to 2, every other symbol exchanges symbols of the M-channel mapping data stream at the same position to obtain the M-channel mixed data stream; or

When M is equal to 3, the M-way mapped data stream includes mapping data streams X0, XI, and X2, And the number of symbols in each of the M-mapped data streams in any one of the pulses is N, the N is a positive integer; the M-way mixed data stream includes mixed data streams C0, C1, and C2;

Wherein n is an integer, n=0, 1, 2, ..., N/3-l.

It should be noted that if the length of the mapped data stream X0, XI, and X2 is not an integer multiple of 3, it can be processed in various ways, which is not limited herein. For example, if NIL is defined as an invalid character symbol, add as few NILs as possible at the end of the mapped data streams X0, XI, and X2, so that the length of the mapped data stream is rounded to an integral multiple of three, where each data stream after the NIL is added. The length is N; after the mixing is completed, all the NIL symbols in the mixed data streams C0, C1, and C2 are deleted; for example, only the integer multiple of 3 in N is used for the above processing, and the remaining characters are directly placed in the corresponding Mixed data stream.

Further, the mixing unit 112 is further specifically configured to:

When M is 4, the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3, and the number of symbols in each of the M-channel mapping data streams in any one of the pulses is N, The N is a positive integer; the M-way mixed data stream includes mixed data streams C0, CI, C2, and C3; Taking a symbol from the mapped data stream X0 in a symbol within one pulse at a time, and sequentially placing the mixed data stream CO at a 4*n position within the one pulse, the mixed data stream C1 being in the Said 4*n+1 positions in a pulse, said mixed data stream C2 is at 4*n+2 positions in said one pulse, and C3 is 4*n+3 in said one pulse Location.

Taking one symbol at a time from the mapped data stream X2 in a symbol within one pulse, sequentially placed at a 4*n position of C2 within the one pulse, the mixed data stream C3 being within the one pulse 4*n+1 positions, the mixed data stream CO is at 4*n+2 positions in the one pulse, and the mixed data stream C1 is at 4*n+3 in the one pulse Location

Taking a symbol from the mapped data stream X3 in a symbol within one pulse at a time, and sequentially placing the mixed data stream C1 at a 4*n position within the one pulse, the mixed data stream C2 being in the a fourth *n+1 position in a pulse, the mixed data stream C3 is at a 4*n+2 position in the one pulse, and the mixed data stream CO is in the first pulse 4*n+3 locations;

Where n is a positive integer, n=0, 1 , ... N/4-l.

Similarly, when M is equal to 4, the mapped data stream is X0, XI, X2, X4. If the mapped data stream X0, XI, X2, X3 is not an integer multiple of 4, for example, NIL can be defined as an invalid character symbol, respectively Add as few NILs as possible to the end of the mapped data stream to form an integer multiple of 4. The length of each data stream after adding NIL is N. After the mixing is completed, the NIL symbols in the mixed data streams C0, C1, C2, and C3 are all Delete, there is no limit here.

In another embodiment, the mixing unit 112 is further configured to: map data by using the M road The symbols of any one of the streams in the stream are in units of symbols within one half of the pulse, and the symbols of the M-way mapped data streams are mixed to obtain the M-way mixed data stream.

More specifically, when M is 2, the mixing unit 112 is further configured to:

In another embodiment, the mixing unit 112 is further configured to: map, in the M-channel mapping data stream, a symbol of the data stream in one of the half-pulses, and the M-way mapping data stream. The symbols within 4 pulses of a code block are mixed.

Specifically, when M is 4, the M-way mapping data stream includes mapping data streams X0, XI,

X2 and X3; the number of symbols in each of the M-mapped data streams in one pulse is N, and the N is a positive integer; the M-channel mixed data stream includes mixed data streams C0, Cl, C2 And C3, the mixing unit 112 is further configured to:

And selecting, from the mapping data stream Χ0, a symbol corresponding to one half of the four pulses of the one coding block, and sequentially placing the fourth*n half of the mixed data stream CO in the one coding block. a pulse position, the mixed data stream C1 is at a 4*n+l half-pulse position in the one code block, and the mixed data stream C2 is at a 4*n+2 in the one code block. a half-pulse position, the mixed data stream C3 is at a 4*n+3 half-pulse position within the one code block;

And selecting, from the mapping data stream XI, a symbol corresponding to a half pulse in one of the four pulses of the one coding block, and sequentially placing the fourth*n half in the mixed data stream C3 in the one coding block. a pulse position, the mixed data stream CO is at a 4*n+l half-pulse position in the one code block, and the mixed data stream C1 is at a 4*n+2 in the one code block a half-pulse position, the mixed data stream C2 is at a 4*n+3 half-pulse position within the one code block; And selecting, from the mapping data stream X2, a symbol corresponding to a half pulse in one of the four pulses of the one coding block, and sequentially placing the fourth*n half in the mixed data stream C2 in the one coding block. a pulse position, the mixed data stream C3 is at a 4*n+l half-pulse position in the one code block, and the mixed data stream CO is at a 4*n+2 in the one code block a half-pulse position, the mixed data stream C1 is at a 4*n+3 half-pulse position within the one code block;

And selecting, from the mapping data stream X3, a symbol corresponding to a half pulse in one of the four pulses of the one coding block, and sequentially placing the fourth*n half in the mixed data stream C1 in the one coding block. a pulse position, the mixed data stream C2 is at a 4*n+l half-pulse position in the one code block, and the mixed data stream C3 is at a 4*n+2 in the one code block a half-pulse position, the mixed data stream CO is at a 4*n+3 half-pulse position within the one code block;

Where n is an integer and η = 0, 1.

In another embodiment, the mixing unit 112 is further configured to: map the M-way mapping data stream into a unit by using a symbol of any one of the M-way mapping data streams in one pulse. The symbols within the 4 pulses of the coded block are mixed.

Specifically, when M is 2, the mixing unit 112 is further configured to:

Specifically, when the M is equal to 4, the mixing unit 112 is further configured to:

Xm(0), Xm(l), Xm(2), Xm(3) are data of four pulses of one coding block corresponding to the mapping data stream Xm, m=0, l, 2, 3;

Taking one pulse data from the four pulses of the one coding block from the mapping data stream X0, and sequentially placing the mixed data stream CO at the 0th pulse position in the one coding block, The mixed data stream C1 at the first pulse position within the one code block, the mixed number According to the second pulse position of the stream C2 in the one coding block, the mixed data stream C3 is at the third pulse position in the one coding block;

Taking one pulse data from the four pulses of the one coding block from the mapping data stream XI, and sequentially placing the mixed data stream C3 at the 0th pulse position in the one coding block, The mixed data stream CO is at a first pulse position within the one code block, the mixed data stream C1 is at a second pulse position within the one code block, and the mixed data stream C2 is at the one code block The third pulse position within;

Taking one pulse data from the four pulses of the one coding block from the mapping data stream X2, and sequentially placing the mixed data stream C2 at the 0th pulse position in the one coding block, The mixed data stream C3 is at a first pulse position within the one code block, the mixed data stream CO is at a second pulse position within the one code block, and the mixed data stream C1 is at the one code block The third pulse position within;

Taking one pulse data from the four pulses of the one coding block from the mapping data stream X3, and sequentially placing the mixed data stream C1 at the 0th pulse position in the one coding block, The mixed data stream C2 is at a first pulse position within the one code block, the mixed data stream C3 is at a second pulse position within the one code block, and the mixed data stream CO is at the one code block The third pulse position inside.

The mobile communication device provided by the foregoing embodiment mixes the symbol mapped mapping data stream as uniformly as possible in the mixed data stream, and then sends the data to the terminal through multiple antennas, so that the data received by the terminal through different antennas is mixed and mixed. After the data stream is restored to the mapped data stream, the obtained carrier data stream has the same carrier-to-interference ratio. Therefore, the terminal only needs to report the carrier-to-interference ratio of the mapped data stream for the base station to use according to the terminal. The carrier code ratio of the reported one-way mapped data stream is selected by the modulation coding mode of the subsequent initial data stream, and the amount of feedback information is reduced. At the same time, multiple initial data streams adopt the same modulation and coding mode, and a higher throughput rate can be obtained.

As shown in FIG. 12, an embodiment of the present invention further provides a mobile communication device, which may be The base station, the device 120 includes: a receiver 121, a transmitter 122, and a processor 123 and a memory 124;

An application physically stored in the memory 124, the application including instructions operable to cause the processor 123 and the system to perform the following process:

The M channel initial data stream is modulated and encoded by the processor 123 according to the modulation and coding mode to obtain an M-channel modulated data stream, where M is a positive integer greater than 1, and M is not greater than the number of antennas; The modulated data stream is separately symbol-mapped to generate an M-way mapped data stream;

Mixing the M-way mapping data streams to generate an M-way mixed data stream;

Receiving, by the receiver 121, a carrier-to-interference ratio of the one-way mapping data stream that the terminal receives and feeds back according to the carrier-to-interference ratio of the M-channel mixed data stream;

The M-channel mixed data stream may be subjected to pulse mapping, phase rotation, and pulse shaping processing for each of the mixed data streams before being transmitted, which is a prior art and will not be described again.

It should be understood that the manner in which the terminal acquires the carrier-to-interference ratio of the mapped data stream may have various options. For example, the terminal averages the carrier-to-interference ratio of the M-channel mixed data stream, and the average value is used as a one-way mapping data stream. The carrier-to-interference ratio; the terminal may also de-mix the received M-channel mixed data stream, restore the mixed data stream to the M-way mapping data stream without mixing, and then calculate the carrier-to-interference ratio of one of the mapped data streams. Any one of the data streams can be mapped to the M path, which is not limited herein.

The mobile communication device provided in the above embodiment separately mixes the symbol mapped mapping data stream into the mixed data stream as much as possible, and then sends the data to the terminal separately on the multiple antennas, so that the data received by the terminal through different antennas is mixed. The mixed data stream, after restoring the symbols in the mixed data stream to the mapped data stream, the carrier-to-interference ratio of each mapped data stream is basically the same, so the terminal only needs to Reporting the carrier-to-interference ratio of the mapped data stream for the base station, so that the base station reduces the amount of feedback information according to the carrier-to-interference ratio of the one-way mapped data stream reported by the terminal, and reduces the amount of feedback information. At the same time, multiple initial data streams are the same. The modulation coding method can achieve higher throughput.

As shown in FIG. 13, the embodiment of the present invention further provides a mobile communication system, where the system includes a mobile communication device 131 and a terminal 132. The mobile communication device 131 may be a base station, and the terminal includes but is not limited to For mobile phones, tablets, and other terminals;

The terminal 132 is configured to acquire, after receiving the M-way mixed data stream sent by the base station 131, a carrier-to-interference ratio of a mapped data stream according to a carrier-to-interference ratio of the M-channel mixed data stream; The base station feeds back the carrier-to-interference ratio of the one-way mapped data stream.

In the mobile communication system provided by the foregoing embodiment, the mobile communication device mixes the symbol mapped mapping data streams into the mixed data stream as uniformly as possible, and then transmits the signals to the terminal on the multiple antennas, so that the terminal receives the signals through different antennas. The data is a mixed mixed data stream. After the symbols in the mixed data stream are restored to the mapped data stream, the carrier-to-interference ratio of each mapped data stream is basically the same, so the terminal only needs to report the carrier-to-interference ratio of the mapped data stream. The base station reduces the amount of feedback information according to the modulation and coding mode of the subsequent initial data stream according to the carrier-to-interference ratio of the one-way mapped data stream reported by the terminal, and at the same time, multiple initial data streams adopt the same modulation and coding mode, which can obtain higher Throughput rate.

As shown in FIG. 14, another mobile communication method provided by the implementation of the present invention may be performed by a base station, as described below.

1401. Modulate and encode the M channel initial data stream according to a modulation and coding manner to obtain an M-channel modulated data stream, where M is a positive integer greater than 1, and M is not greater than the number of antennas.

It should be noted that, when the initial data stream is sent by the base station for the first time, the M channel initial data stream may be modulated and coded by using a preset modulation and coding manner. The preset modulation and coding mode may be preset in the base station or may be input through The device is configured. The number of the above M is not greater than the number of antennas, that is, M is not greater than the number of antennas of the base station.

1402: Perform symbol mapping on the M-channel modulated data streams to generate an M-way mapped data stream.

1403. Mix the M-way mapping data streams to generate an M-channel mixed data stream.

For example, in step 1403, the M-way mapping data stream is mixed to generate an M-channel mixed data flow. For details, refer to the related description in step 303, and details are not described herein.

1404. Send the M-channel mixed data stream to the terminal on different antennas.

In step 1404, the M-channel mixed data stream can be subjected to pulse mapping, phase rotation, and pulse shaping processing on the M-channel mixed data stream before being transmitted to the terminal through different antennas, which is a prior art and will not be described herein.

It should be noted that the channel quality of the mixed mixed data stream transmitted through different antennas is different, but after the symbols in the mixed data stream are restored to the mapped data stream, the channel quality of each mapped data stream is substantially the same. The channel quality may include at least one of the following information: a carrier to interference ratio, a channel strength, a signal quality, and a bit error rate.

With the above-mentioned embodiments, the base station uniformly mixes the symbol-mapped data streams in the mixed data stream, and then transmits them to the terminals on different antennas, so that the channel quality of the terminal mapped data streams is basically the same, so the terminal only It is necessary to report the channel quality of the mapped data stream, which reduces the amount of feedback information.

Optionally, in an implementation scenario, the foregoing method further includes:

1405. The channel quality of the one-way mapped data stream obtained and fed back by the receiving terminal according to the channel quality of the M-way mixed data stream.

The channel quality may include at least one of the following information: carrier to interference ratio, channel strength, signal quality, and bit error rate. 1406. Determine a modulation and coding manner according to the measurement report of the one-way mapping data stream.

Specifically, after receiving the channel quality fed back by the terminal, the base station determines a modulation and coding mode for different carrier-to-interference ratios, where the modulation and coding mode is used for modulation coding of the initial data stream to be transmitted next, for example, the carrier is relatively poor. Then select the encoding method with a small bit rate.

In the above implementation scenario, the base station selects a modulation and coding mode of the subsequent initial data stream according to the carrier-to-interference ratio of the one-way mapped data stream reported by the terminal, and at the same time, multiple initial data streams adopt the same modulation and coding mode, and can obtain a higher throughput rate. .

As shown in FIG. 15, another mobile communication method provided by the implementation of the present invention may be performed by a terminal, as described below.

1501: The terminal receives the M-channel mixed data stream sent by the network side device, where M is a positive integer greater than 1.

1502. The terminal acquires channel quality of the M-channel mixed data stream.

The channel quality may include at least one of the following information: a carrier to interference ratio, a channel strength, a signal quality, and a bit error rate.

1503. The terminal acquires channel quality of the mapped data stream according to the channel quality of the M-channel mixed data stream, and sends the channel quality to the network side device by using the measurement report.

It should be understood that, when the terminal acquires the channel quality of the mapped data stream, the terminal may have multiple options. For example, when the channel quality is the carrier-to-interference ratio, the terminal may average the carrier-to-interference ratio of the M-channel mixed data stream. The value is used as the carrier-to-interference ratio of the one-way mapped data stream; the terminal may also de-mix the received M-way mixed data stream, restore the mixed data stream to the M-way mapped data stream without mixing, and then calculate The one-way mapping data stream has a carrier-to-interference ratio, and the one-way may be any one of the M-way mapping data streams; the terminal may also select a CIR with the largest or smallest CIR to report to the base station in the M-way mapping data stream obtained after the de-mixing. There are no restrictions here.

Through the foregoing embodiment, the terminal receives the M-channel mixed data stream sent by the network side device, and obtains the channel quality of the M-channel mixed data stream, and the terminal obtains a channel quality according to the channel quality of the M-channel mixed data. The channel maps the channel quality of the data, and reports the channel quality of the mapped data stream to the base station, reducing the amount of feedback information.

Optionally, as an implementation manner, the foregoing method further includes:

1504. The terminal de-mixes the M-channel mixed data stream to generate an M-way mapping data stream. The following is a description of several specific implementation manners for the terminal to de-mix the mixed data stream: Method 1: De-mixing the symbols of the M-channel mixed data stream in units of a single symbol to obtain the M-way mapping data stream .

For example, when M is equal to 2, every other symbol exchanges the symbols at the same position of the M-channel mixed data stream to obtain the M-way mapped data stream.

Specifically, after demodulating the two mixed data streams CO and C1, the terminal performs the de-mixing operation in the above manner to obtain the mapped data streams X0 and XI. Suppose that the number of symbols in a pulse of a mixed data stream is N, and the sign of CO in a pulse is [C0(0), C0(1), ..., C0(N-1)], CI is in a pulse. The internal symbols are [C1(0), Cl(l), ..., C1(N-1)], and the generated two-way mapped data streams X0 and XI are as follows:

X0=[C0(0), Cl(l), C0(2), Cl(3), · · ·, C0(N-2), Cl(N-l)] ,

X1 = [C1 (0), C0 (1), CI (2), C0 (3), Cl (N-2), C0 (N-1)].

For another example, M is equal to 3, and the M-channel mixed data stream includes mixed data streams C0, C1, and C2, and the number of symbols in each of the M-channel mixed data streams in any one of the pulses is N, and the N is positive. Integer; M-way mapping data stream includes mapping data streams X0, XI and X2;

Extracting symbols of the 3*nth position of the mixed data stream C2 in the one pulse, the symbol of the 3*n+1th position in the mixed data stream CO, the mixed data stream C1 The symbols of the 3*n+2th position in the one pulse are sequentially placed in the one pulse of the mapping data stream XI;

Wherein n is an integer, n=0, 1, 2, ..., N/3-l.

Specifically, after the terminal demodulates the three mixed data streams C0, Cl, and C2, the demultiplexing operation is performed in the above manner to obtain the mapped data streams X0, XI, and X2. Suppose that the number of symbols in a pulse of a mixed data stream is N, and the sign of CO in a pulse is [C0(0), C0(1), ..., C0(N-1)], The sign of C1 in one pulse is [C1(0), C1(1), ..., C1(N-1)],

[C2(0), C2(l), ..., C2(N-1)] , generated three-way mapped data streams X0, XI, X2, as follows:

X0=[C0(0), Cl(l), C2(2), C0(3), Cl(4), C2(5), · · ·] ,

X1=[C2(0), C0(1), CI (2), C2(3), C0(4), Cl(5), · · ·] ,

X2=[C1(0), C2(l), C0(2), Cl(3), C2(4), C0(5), · · ·].

For another example, M is equal to 4, and the M-channel mixed data stream includes mixed data streams C0, Cl, C2, and C3, and the number of symbols in each of the M-channel mixed data streams in any one of the pulses is N, the N a positive integer; the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3; extracting symbols of the 4*nth position of the mixed data stream CO within a pulse, the mixed data stream C1 being a symbol of a 4*n+1th position in a pulse, a symbol of the 4*n+2th position of the mixed data stream C2 in the one pulse, and the mixed data stream C3 in the one pulse 4*n+3 positions of symbols, which are sequentially placed in the one pulse of the mapping data stream X0;

Extracting the symbol of the 4*nth position of the mixed data stream C3 within the one pulse, the mixing a symbol of the 4*n+1th position of the data stream CO in the one pulse, a symbol of the 4*n+2th position in the mixed data stream C1 in the one pulse, the mixed data stream C2 The symbols of the 4th*n+3th position in the one pulse are sequentially placed in the one pulse of the mapping data stream XI;

Where n is a positive integer, n=0, 1 , ..., N/4-l.

Specifically, after the terminal demodulates the four mixed data streams C0, Cl, C2, and C3, it is assumed that C0(0) performs the demixing operation in the above manner to obtain the mapped data streams X0, XI, X2, and X3, and the generated four paths are generated. Map data streams X0, XI, X2, X3, as follows:

X0=[C0(0), Cl(l), C2(2), C3(3), C0(4), Cl(5), C2(6), C3(7), · · ·] ,

X1=[C3(0), C0(1), CI (2), C2(3), C3(4), C0(5), Cl(6), C2(7), · · ·] ,

X2=[C2(0), C3(l), C0(2), Cl(3), C2(4), C3(5), C0(6), Cl(7), · · ·] ,

X3=[C1(0), C2(l), C3(2), C0(3), CI(4), C2(5), C3(6), C0(7), · · ·].

In the second method, the symbols of the mixed data stream in the M-channel mixed data stream are in units of half a pulse, and the symbols of the M-channel mixed data stream are de-mixed to obtain the M-way mapped data stream.

For example, M is 2, and one mixed data stream in the M mixed data stream is half of a pulse. The symbols within the pulse are exchanged with the symbols of the other mixed data stream in the M-way mixed data stream within the half pulse of the one pulse.

Specifically, the terminal demodulates two mixed data streams CO and CI, and the symbols of CO in one pulse are [C0(0), C0(1), ..., C0(N-1)], CI in one pulse The symbols inside are [C1(0), Cl(l), ..., C1(N-1)], and the de-mixing operation is performed in the second way to obtain the mapped data streams Χ0 and XI, and the generated two-way mapping The data stream Χ0, XI, is as follows:

X0=[C0(0" .., N/2-1), Cl(N/2,..., N-l)],

X1=[C1(0" .., N/2-1), C0(N/2" .., N-1)].

In the third mode, the symbols of the mixed data stream of the M-channel mixed data stream are half-pulse, and the symbols of the M-channel mixed data stream in the four pulses of one coding block are de-mixed.

For example, M is 4, and the M-way mapped data stream includes the mapped data streams X0, XI, X2, and X3; the number of symbols in each of the M-mapped data streams in one pulse is N, and N is a positive integer; The road mixed data stream includes mixed data streams C0, Cl, C2, and C3;

Extracting symbols of the 4*nth half-pulse position of the mixed data stream C2 in the one coding block, and the mixed data stream C3 is 4*n+l half in the one coding block Pulse position a symbol of the 4*n+2 half-pulse position of the mixed data stream CO in the one coding block, and the 4*n+ of the mixed data stream C1 in the one coding block The symbols of the three half-pulse positions are sequentially placed in the one coding block of the mapping data stream X2;

Where n is an integer and η = 0, 1.

Specifically, after the terminal demodulates the four mixed data streams C0, Cl, C2, and C3, it is assumed that C0(0, 0) represents the first half of the 0th pulse of the mixed data stream CO in one coding block, C0 ( 0, 1) indicates that the mixed data stream CO is in the second half of the 0th pulse in the one code block, and the other meanings are similar. The method 3 performs the demixing operation to obtain the mapped data streams X0, XI, X2, and X3, and generates The symbols of the four-way mapped data stream X0, XI, X2, and X3 in the one code block are as follows:

X0=[C0(0,0), C1(0,1), C2(l,0), C3(l,l), C0(2,0), Cl(2,l), C2(3,0 ), C3(3,l)],

X1=[C3(0,0), C0(0,1), C1(1,0), C2(l,l), C3(2,0), C0(2,l), Cl(3,0 ), C2(3,l)] , X2=[C2(0,0), C3(0,l), C0(1,0), Cl(l,l), C2(2,0), C3( 2,l), C0(3,0), Cl(3,l)], X3=[C1(0,0), C2(0,l), C3(l,0), C0(1,1) , CI (2,0), C2(2,l), C3(3,0), C0(3,l)]. In the fourth method, the symbols of the mixed data stream of one of the M-channel mixed data streams in one pulse are used, and the symbols of the M-channel mixed data stream in the four pulses of one coding block are de-mixed.

For example, M is 2, and within 4 pulses of a code block, every other pulse exchanges symbols within one pulse of the M-channel mixed data stream.

Specifically, after the terminal demodulates the two mixed data streams C0 and C1, the demultiplexing operation is performed in the fourth manner to obtain the mapped data streams X0 and XI, and the generated two-way mapped data streams X0 and XI are as follows: X0=[C0 (0), Cl(l), C0(2), Cl(3)], X1=[C1(0), C0(1), Cl(2), C0(3)].

Where C0(0) represents the 0th pulse in one coding block, and C0(1) represents the 1st pulse in the one coding block, and the others are similar.

For example, M is equal to 4, the M-way mixed data stream includes mixed data streams C0, Cl, C2, and C3, and the M-way mapped data stream includes mapped data streams X0, XI, X2, and X3;

Extracting a symbol of a 0th pulse position of the mixed data stream C3 in the one coding block, a symbol of a first pulse position of the mixed data stream CO in the one coding block, the mixed data stream C1 is a symbol of a second pulse position in the one coding block, and a symbol of the third pulse position of the mixed data stream C2 in the one coding block is sequentially placed in the mapping data stream XI Said within a coded block;

Extracting a symbol of a 0th pulse position of the mixed data stream C2 in the one coding block, a symbol of a first pulse position of the mixed data stream C3 in the one coding block, the mixed data stream a symbol of a second pulse position of the CO in the one coding block, and a symbol of the third pulse position of the mixed data stream C1 in the one coding block is sequentially placed in the mapping data stream X2 Said within a coded block;

Extracting a symbol of a 0th pulse position of the mixed data stream C1 in the one coding block, a symbol of a first pulse position of the mixed data stream C2 in the one coding block, the mixed data stream C3 is a symbol of a second pulse position in the one coding block, and a symbol of the third pulse position of the mixed data stream CO in the one coding block is sequentially placed in the mapping data stream X3 Said within a coding block. Specifically, after demodulating the four mixed data streams C0, Cl, C2, and C3, the terminal performs the demixing operation in the above manner to obtain the mapped data streams X0, XI, X2, and X3, and the generated four-way mapped data stream X0, XI, X2, X3, as follows:

X0=[C0(0), Cl(l), C2(2), C3(3)],

X1=[C3(0), C0(1), Cl(2), C2(3)],

X2=[C2(0), C3(l), C0(2), Cl(3)],

X3=[C1(0), C2(l), C3(2), C0(3)].

As shown in FIG. 16, a mobile communication device according to an embodiment of the present invention may be a base station, and includes: a coding unit 1601, a mapping unit 1602, a mixing unit 1603, and a sending unit 1604, which are specifically described below.

The coding unit 1601 is configured to modulate and encode the M-channel initial data stream according to the modulation and coding manner, to obtain an M-channel modulated data stream, where M is a positive integer greater than 1, and M is not greater than the number of antennas; and mapping unit 1602 is configured to Performing symbol mapping on the M-channel modulated data streams obtained by the encoding unit 1601 to generate an M-way mapping data stream;

a mixing unit 1603, configured to mix the M-way mapping data streams received from the mapping unit 1602 to generate an M-way mixed data stream;

The sending unit 1604 is configured to send the M-channel mixed data stream of the mixing unit generation 1603 to the terminal on different antennas.

Wherein, when the mobile communication device is a base station, the number of M not greater than the number of antennas is not greater than the number of antennas of the base station.

With the above embodiments, the mobile communication device mixes the symbol mapped mapped data streams as uniformly as possible in the mixed data stream, and then transmits them to the terminals on different antennas, so that the channel quality of the terminal mapped data streams is substantially the same, The terminal only needs to report the channel of the mapped data stream. Quality, reducing the amount of feedback.

Optionally, as an implementation manner, the mixing unit 1603 is specifically configured to:

The symbols of the M-way mapping data stream in one pulse are mixed in units of a single symbol to obtain the M-channel mixed data stream.

Optionally, the mixing unit 1603 is further specifically configured to:

When M is equal to 2, every other symbol exchanges the symbols at the same position of the M-channel mapping data stream to obtain the M-channel mixed data stream.

Optionally, M is equal to 3, and the M-way mapping data stream includes mapping data streams X0, XI, and X2, and the number of symbols in each of the M-mapped data streams in any one of the pulses is N, and N is a positive integer. ; M-way mixed data stream includes mixed data streams C0, C1 and C2;

The mixing unit 1603 is specifically used to:

Wherein n is an integer, n=0, 1, 2, ..., N/3-l.

Optionally, M is equal to 4, and the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3, and the number of symbols in each of the M-mapped data streams in any one of the pulses is N, N is a positive integer; the M-way mixed data stream includes mixed data streams C0, Cl, C2, and C3;

The mixing unit 1603 is specifically used to:

Taking a symbol from the mapped data stream X0 in a symbol within one pulse at a time, and sequentially placing the mixed data stream CO at a 4*n position within the one pulse, the mixed data stream C1 being in the 4*n+1 positions in one pulse, 4*n+2 positions in the mixed data stream C2, 4*n+3 in the one pulse in the mixed data stream C3 Location

Wherein n is a positive integer, n=0, 1 , ··., N/4-1.

Optionally, as another implementation manner, the mixing unit 1603 is specifically configured to:

The M-channel mixed data stream is obtained by mixing the symbols of the M-channel mapped data stream in units of symbols in the half-pulse of the M-way mapped data stream. Optionally, M is 2, and the mixing unit 1603 is specifically configured to:

Optionally, the mixing unit 1603 is specifically configured to:

Further, M is 4, and the M-way mapped data stream includes the mapped data streams X0, XI, X2, and X3; the number of symbols in each of the M-mapped data streams in one pulse is N, and the N is positive Integer; M-way mixed data stream including mixed data streams C0, Cl, C2, and C3;

The mixing unit 1603 is specifically used to:

And selecting, from the mapping data stream X2, a symbol corresponding to a half pulse at a time among four pulses of the one coding block, and sequentially placing the mixed data stream C2 in a fourth*n half of the one coding block a pulse position, the mixed data stream C3 is at a 4*n+l half-pulse position of the one coding block, and the mixed data stream CO is at a 4*n+2 half of the one coding block Pulse position, The mixed data stream CI is at a 4*n+3 half-pulse position of the one coding block; from the mapping data stream X3, one of the 4 pulses of the one coding block is taken at a time. a symbol, which is sequentially placed in the 4*nth half pulse position of the one code block in the mixed data stream C1, and the mixed data stream C2 is in the 4th*n+l half of the one code block a pulse position, the mixed data stream C3 is at a 4*n+2 half-pulse position of the one coding block, and the mixed data stream CO is at a 4*n+3th half of the one coding block Pulse position

Wherein n is an integer and η = 0, 1.

Optionally, the mixing unit 1603 is specifically configured to:

The symbols of the M-channel mapped data stream in the four pulses of one coding block are mixed in units of symbols in one pulse of the M-channel mapped data stream.

Further, M is 2, and the mixing unit 1603 is specifically used for:

Further, M is equal to 4, the M-way mapped data stream includes mapping data streams X0, XI, X2, and X3; the M-way mixed data stream includes mixed data streams C0, Cl, C2, and C3, and the mixing unit 1603 is specifically used for:

Taking one pulse data from the four pulses of the one coding block from the mapping data stream X0, and sequentially placing the mixed data stream CO at the 0th pulse position of the one coding block, the mixing The data stream C1 is at the first pulse position of the one coding block, the mixed data stream C2 is at the second pulse position of the one coding block, and the mixed data stream C3 is at the third of the one coding block. Pulse position

Taking one pulse data from the four pulses of the one coding block from the mapping data stream XI, and sequentially placing the mixed data stream C3 at the 0th pulse position of the one coding block, the mixing The data stream CO is at a first pulse position of the one code block, the mixed data stream C1 is at a second pulse position of the one code block, and the mixed data stream C2 is in the one code. The third pulse position of the code block;

Optionally, as another implementation manner, the foregoing mobile communication device further includes a receiving unit 1605, and the receiving unit 1605 is configured to receive one-way mapping data that is acquired and fed back by the terminal according to a channel quality of the M-channel mixed data stream. The measurement unit 1601 is further configured to determine the modulation and coding mode according to the measurement report of the one-way mapping data stream received from the receiving unit 1605; or

The receiving unit 1605 is configured to receive a carrier-to-interference ratio of the one-way mapping data stream that is acquired and fed back by the terminal according to the carrier-to-interference ratio of the M-channel mixed data stream. The encoding unit 1601 is further configured to receive according to the receiving unit 1605. The carrier-to-interference ratio of the one-way mapped data stream determines the modulation and coding scheme.

In the above implementation scenario, the mobile communication device selects the modulation and coding mode of the subsequent initial data stream according to the carrier-to-interference ratio of the one-way mapped data stream reported by the terminal, and at the same time, the multiple initial data streams adopt the same modulation and coding mode, which can obtain higher Throughput rate.

As shown in FIG. 17, a terminal provided by an embodiment of the present invention includes: a receiving unit 1701, an obtaining unit 1702, and a sending unit 1703, which are specifically described below. The receiving unit 1701 is configured to receive an M-channel mixed data stream sent by the network side device, where M is a positive integer greater than 1.

The obtaining unit 1702 is configured to obtain a channel quality of the M-channel mixed data stream received by the receiving unit 1701.

The sending unit 1703 is configured to obtain the channel quality of the one-way mapped data stream according to the channel quality of the M-channel mixed data stream acquired by the acquiring unit 1702, and send the channel quality to the network side device by using the measurement report.

Through the foregoing embodiment, the terminal receives the M-channel mixed data stream sent by the network side device, and obtains the channel quality of the M-channel mixed data stream, and the terminal obtains the channel quality of the one-way mapping data according to the channel quality of the M-channel mixed data, and reports the channel quality Mapping the channel quality of the data stream to the base station reduces the amount of feedback information.

Optionally, in another embodiment, the foregoing terminal further includes:

The de-mixing unit 1704 is configured to de-mix the M-way mixed data streams received by the receiving unit 1701 to generate an M-way mapping data stream.

Further, as an implementation scenario, the de-mixing unit 1704 is specifically configured to:

The symbols of the M-channel mixed data stream are de-mixed in units of a single symbol to obtain an M-way mapped data stream.

Optionally, the de-mixing unit 1704 is further specifically configured to:

When M is equal to 2, every other symbol exchanges the symbols at the same position of the M-channel mixed data stream to obtain the M-way mapped data stream.

Optionally, M is equal to 3, and the M-way mixed data stream includes mixed data streams C0, C1, and C2, and

The number of symbols in each of the mixed data streams in the M-way mixed data stream is N, N is a positive integer; the M-way mapped data stream includes mapping data streams X0, XI and X2;

The de-mixing unit 1704 is specifically used to:

Extracting symbols of the 3*nth position of the mixed data stream CO within a pulse, the symbol of the 3*n+l position of the mixed data stream C1 in the one pulse, and the mixed data stream C2 Place a symbol of a 3*n+2 position in a pulse, which is sequentially placed in the one pulse of the mapping data stream X0;

Wherein n is an integer, n=0, 1, 2, ..., N/3-l.

Optionally, M is equal to 4, the M-way mixed data stream includes mixed data streams C0, Cl, C2, and C3, and the number of symbols in each of the M-channel mixed data streams in any one of the pulses is N, the N is a positive integer; the M-way mapping data stream includes mapping data streams X0, XI, X2, and X3;

The de-mixing unit 1704 is specifically used to:

Extracting symbols of the 4*nth position of the mixed data stream C3 in the one pulse, the symbol of the 4*n+l position in the mixed data stream CO, the mixed data stream C1 is a symbol of the 4th*n+2th position in the one pulse, and the symbol of the 4*n+3th position of the mixed data stream C2 in the one pulse is sequentially placed in the mapping data stream XI Said one Within the pulse;

Where n is a positive integer, n=0, 1 , ··. , N/4-1.

Optionally, as another implementation manner, the de-mixing unit 1704 is specifically configured to:

Optionally, M is 2, and the de-mixing unit 1704 is specifically configured to:

Optionally, the de-mixing unit 1704 is specifically configured to:

Further, M is 4, and the M-way mapped data stream includes the mapped data streams X0, XI, X2, and X3; the number of symbols in each of the M-mapped data streams in one pulse is N, and the N is positive Integer; M-way mixed data stream including mixed data streams C0, Cl, C2, and C3; The de-mixing unit 1704 is specifically configured to:

Where n is an integer and η = 0, 1.

The symbols of the M-way mixed data stream in the four pulses of one coding block are de-mixed in units of symbols in one pulse of the mixed data stream in the M-channel mixed data stream. Further, M is 2, and the de-mixing unit 1704 is specifically configured to:

Further, M is equal to 4, the M-way mixed data stream includes mixed data streams C0, Cl, C2, and C3, and the M-way mapped data stream includes mapped data streams X0, XI, X2, and X3; and the de-mixing unit 1704 is specifically configured to:

Extracting a symbol of a 0th pulse position of the mixed data stream C1 in the one coding block, a symbol of a first pulse position of the mixed data stream C2 in the one coding block, the mixed data stream C3 is a symbol of a second pulse position in the one coding block, and a symbol of the third pulse position of the mixed data stream CO in the one coding block is sequentially placed in the mapping data. Within one of the encoded blocks of stream X3.

As shown in FIG. 18, an embodiment of the present invention further provides a mobile communication device, which may be a base station, and the device includes: a receiver 1801, a transmitter 1802, and a processor 1803 and a memory 1804;

An application physically stored in memory 1804, the application including which can be used to make the processor

1803 instructions to perform the following process:

The M-channel initial data stream is modulated and encoded by the processor 1803 according to a modulation and coding manner to obtain an M-channel modulated data stream, where M is a positive integer greater than 1, and M is not greater than the number of antennas; The modulated data stream is separately symbol-mapped to generate an M-way mapped data stream;

Mixing the M-way mapped data streams to generate an M-way mixed data stream;

The M-channel mixed data streams are respectively sent to the terminals on different antennas.

Specifically, the processor 1803 is further configured to perform a specific implementation manner in which the base station mixes the mapped data streams in step 303 shown in FIG. 3, and details are not described herein again.

With the above embodiments, the mobile communication device mixes the symbol mapped mapped data streams as uniformly as possible in the mixed data stream, and then transmits them to the terminals on different antennas, so that the channel quality of the terminal mapped data streams is substantially the same, The terminal only needs to report the channel quality of the mapped data stream, which reduces the amount of feedback information.

Optionally, the receiver 1801 is configured to receive, by the terminal, a measurement report of the one-way mapping data flow obtained and fed back according to the channel quality of the M-channel mixed data stream;

The processor 1803 is further configured to determine a modulation and coding manner according to the measurement report of the one-way mapping data stream.

In the above implementation scenario, the mobile communication device carries according to the one-way mapping data flow reported by the terminal. The ratio of the modulation and coding of the subsequent initial data stream is selected, and at the same time, multiple initial data streams adopt the same modulation and coding method, and a higher throughput rate can be obtained. As shown in FIG. 19, an embodiment of the present invention further provides a terminal, including: a receiver 1901, a transmitter 1902, and a processor 1903 and a memory 1904;

An application physically stored in the memory 1904, the application including instructions operable to cause the processor 1903 to perform the following process:

Receiving the M-way mixed data stream sent by the network side device, where M is a positive integer greater than 1; acquiring channel quality of the M-channel mixed data stream;

The channel quality of the one-way mapped data stream is obtained according to the channel quality of the M-channel mixed data stream, and is sent to the network side device through the measurement report.

It should be understood that the manner in which the terminal acquires the channel quality of the mapped data stream may have various options. For example, when the channel quality is the carrier-to-interference ratio, the terminal may average the carrier-to-interference ratio of the M-channel mixed data stream. The average value is used as the carrier-to-interference ratio of the one-way mapped data stream; the terminal may also de-mix the received M-channel mixed data stream, restore the mixed data stream to the M-way mapping data stream without mixing, and then calculate one of the mappings. The carrier-to-interference ratio of the data stream may be any one of the M-way mapping data streams; the terminal may also select a CIR with the largest or smallest CIR to be reported to the base station in the M-way mapping data stream obtained after the de-mixing, where No restrictions.

The channel quality may include at least one of the following information: carrier to interference ratio, channel strength, signal quality, and bit error rate.

Optionally, the processor 1903 is further configured to execute the instruction: The M-channel mixed data stream is de-mixed to generate an M-way mapped data stream.

Specifically, the processor 1903 is further configured to perform a specific implementation manner in which the terminal de-mixes the mixed data stream in the step 1504 of the embodiment shown in FIG. 15 , and details are not described herein again.

A person skilled in the art should further appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field Any other form of storage medium known.

The above described embodiments of the present invention are further described in detail, and the embodiments of the present invention are intended to be illustrative only. The scope of the protection, any modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

claims

1. A mobile communication method, characterized in that the method includes:

Modulate and code M initial data streams according to the modulation and coding method to obtain M modulated data streams, where M is a positive integer greater than 1, and M is not greater than the number of antennas;

Perform symbol mapping on the M modulated data streams respectively to generate M mapped data streams; Mix the M mapped data streams to generate M mixed data streams;

The M mixed data streams are respectively sent to the terminal on different antennas.

2. The mobile communication method according to claim 1, characterized in that: mixing the M mapping data streams to generate M mixed data streams specifically includes:

Using a single symbol as a unit, the symbols of the M mapping data streams are mixed to obtain the M mixed data streams.

3. The mobile communication method according to claim 2, characterized in that: mixing the symbols of the M mapped data streams on a single symbol basis to obtain the M mixed data streams, specifically including:

When M is equal to 2, symbols at the same position of the M mapped data streams are exchanged every other symbol to obtain the M mixed data streams.

4. The mobile communication method according to claim 2, characterized in that, the M is equal to 3, the M mapping data streams include mapping data streams X0, XI and X2, and the M mapping data streams include The number of symbols in each pulse of each mapped data stream is N, and N is a positive integer; the M mixed data streams include mixed data streams C0, C1 and C2;

The steps of mixing the symbols of the M mapped data streams in a single symbol unit to obtain the M mixed data streams specifically include:

Take one symbol at a time from the symbols in one pulse of the mapped data stream The 3*n+l position within a pulse, the mixed data stream C2 is at the The 3*n+2 position within the rush;

Take one symbol at a time from the symbols in the one pulse of the mapped data stream At the 3*n+1th position within the one pulse, the mixed data stream C1 is at the 3*n+2th position within the one pulse;

Take one symbol at a time from the symbols in the one pulse of the mapped data stream At the 3*n+1th position within the one pulse, the mixed data stream CO is at the 3*n+2th position within the one pulse;

Wherein, the n is an integer, n=0,l,2,...,N/3-l.

5. The mobile communication method according to claim 2, characterized in that, the M is equal to 4, the M mapping data streams include mapping data streams X0, XI, X2 and X3, and the M mapping data streams The number of symbols in any one pulse of each mapped data stream in is N, and N is a positive integer; The M mixed data streams include mixed data streams C0, Cl, C2 and C3;

Mixing the symbols of the M mapped data streams in a single symbol unit to obtain the M mixed data streams specifically includes:

Take one symbol at a time from the symbols in one pulse of the mapped data stream The 4*n+1th position within the one pulse, the mixed data stream C2 is at the 4*n+2th position within the one pulse, the mixed data stream C3 is at the 4*n+2th position within the one pulse 4*n+3 positions;

Take one symbol at a time from the symbols in the one pulse of the mapped data stream At the 4*n+1 position within the one pulse, the mixed data stream C1 is at the 4*n+2 position within the one pulse, and the mixed data stream C2 is at the 4*n+2 position within the one pulse. First 4*n+3 positions;

Take one symbol at a time from the symbols in the one pulse of the mapped data stream At the 4*n+1 position within the one pulse, the mixed data stream CO is at the 4*n+2 position within the one pulse, and the mixed data stream C1 is within the one pulse The 4*n+3 position;

Take one symbol at a time from the symbols in the one pulse of the mapped data stream At the 4*n+1 position within the one pulse, the mixed data stream C3 is at the 4*n+2 position within the one pulse, and the mixed data stream CO is at the 4*n+2 position within the one pulse. The 4*n+3 position;

Among them, n is a positive integer, n=0, 1, ··., N/4-1.

6. The mobile communication method according to claim 1, characterized in that: mixing the M mapping data streams to generate M mixed data streams specifically includes:

Taking the symbol within half a pulse of any of the M mapped data streams as a unit, the symbols of the M mapped data streams are mixed to obtain the M mixed data streams.

7. The mobile communication method according to claim 6, wherein M is 2, and taking the symbol of any one of the M mapping data streams within a half pulse as a unit, The symbols of the M mapped data streams are mixed to obtain the M mixed data streams, which specifically includes:

Compare the symbols of one of the M mapping data streams within half a pulse of one pulse with the symbols of another one of the M mapping data streams within the half pulse of one pulse. Symbols are exchanged.

8. The mobile communication method according to claim 6, characterized in that, taking the symbol of any one of the M mapping data streams within a half pulse as a unit, the M mapping data streams are Mix the symbols of the data streams to obtain the M mixed data streams, which specifically includes: taking the symbol of any of the M mapped data streams within half a pulse as a unit, mapping the M The data stream is mixed with symbols within 4 pulses of a coding block.

9. The mobile communication method according to claim 8, wherein M is 4, and the M mapping data streams include mapping data streams X0, XI, X2 and X3; The number of symbols in one pulse of each mapped data stream is N, and N is a positive integer; the M mixed data streams include mixed data streams C0, Cl, C2 and C3;

Mixing the symbols of the M mapping data streams within 4 pulses of a coding block based on the symbols of any one of the M mapping data streams within half a pulse, specifically includes: :

From the mapped data stream Pulse position, the mixed data stream C1 is at the 4*n+1 half pulse position of the one coding block, and the mixed data stream C2 is at the 4*n+2 half pulse position of the one coding block Pulse position, the mixed data stream C3 is at the 4*n+3 half-pulse position of one encoding block;

From the mapped data stream The pulse position, the mixed data stream CO is at the 4*n+1 half pulse position of the one encoding block, the mixed data stream C1 is at the 4*n+2 half pulse position of the one encoding block Pulse position, the mixed data stream C2 is at the 4*n+3 half-pulse position of the one encoding block;

From the mapped data stream Pulse position, the mixed data stream C3 is at the 4*n+1 half pulse position of the one coding block, and the mixed data stream CO is at the 4*n+2 half pulse position of the one coding block Pulse position, the mixed data stream C1 is at the 4*n+3 half-pulse position of the one encoding block; From the mapped data stream The pulse position, the mixed data stream C2 is at the 4*n+1 half pulse position of the one coding block, the mixed data stream C3 is at the 4*n+2 half pulse position of the one coding block Pulse position, the mixed data stream CO is at the 4*n+3 half-pulse position of the one encoding block;

Among them, n is an integer, η=0,1.

10. The mobile communication method according to claim 1, wherein said mixing the M mapping data streams to generate the M mixed data streams specifically includes:

Taking the symbols of any one of the M mapping data streams in one pulse as a unit, the symbols of the M mapping data streams in four pulses of a coding block are mixed.

11. The mobile communication method according to claim 10, characterized in that, the M is 2, and the symbol of any one of the M mapping data streams in one pulse is used as a unit. The M mapping data streams are mixed with symbols within 4 pulses of a coding block, specifically including:

Within the 4 pulses of one encoding block, symbols within one pulse of the M mapping data streams are exchanged every other pulse.

12. The mobile communication method according to claim 10, characterized in that, the M is equal to 4, the M mapping data streams include mapping data streams X0, XI, X2 and X3; the M mixed data streams include The mixed data streams C0, C1, C2 and C3 are based on the symbols of any one of the M mapped data streams in one pulse, and the M mapped data streams are expressed in one coding block. The symbols within 4 pulses are mixed, including:

One pulse data at a time is taken from the mapped data stream The data stream C1 is at the first pulse position of the one coding block, the mixed data stream C2 is at the second pulse position of the one coding block, and the mixed data stream C3 is at the first pulse position of the one coding block. The 3rd pulse position of the code block;

Take one pulse data at a time from the 4 pulses of the one coding block from the mapped data stream The data stream CO is at the first pulse position of the one encoding block, the mixed data stream C1 is at the second pulse position of the one encoding block, and the mixed data stream C2 is at the 3rd pulse position of the one encoding block. pulse position;

One pulse data at a time is taken from the mapped data stream The data stream C3 is at the first pulse position of the one encoding block, the mixed data stream CO is at the second pulse position of the one encoding block, and the mixed data stream C1 is at the 3rd pulse position of the one encoding block. pulse position;

Take one pulse data at a time from the 4 pulses of the one coding block from the mapped data stream The data stream C2 is at the first pulse position of the one encoding block, the mixed data stream C3 is at the second pulse position of the one encoding block, and the mixed data stream CO is at the 3rd pulse position of the one encoding block. pulse position.

13. The mobile communication method according to any one of claims 1-12, characterized in that the method further includes:

Receive a measurement report of one mapped data stream obtained and fed back by the terminal based on the channel quality of the M mixed data streams, and determine the modulation and coding method based on the measurement report of the mapped data stream; or,

Receive the carrier-to-interference ratio of one mapped data stream obtained and fed back by the terminal according to the carrier-to-interference ratio of the M mixed data streams, and determine the modulation and coding mode according to the carrier-to-interference ratio of the one mapped data stream.

14. A mobile communication method, characterized in that the method includes: The terminal receives M mixed data streams sent by the network side device, where M is a positive integer greater than 1; the terminal obtains the channel quality of the M mixed data streams;

The terminal obtains the channel quality of one mapped data stream based on the channel quality of the M mixed data streams, and sends it to the network side device through a measurement report.

15. The mobile communication method according to claim 14, characterized in that the method further includes:

The terminal demixes the M mixed data streams to generate M mapped data streams.

16. The mobile communication method according to claim 15, wherein the terminal demixes the M mixed data streams to generate M mapped data streams, which specifically includes:

Using a single symbol as a unit, the symbols of the M mixed data streams are demixed to obtain the M mapped data streams.

17. The mobile communication method according to claim 16, characterized in that: demixing the symbols of the M mixed data streams in a single symbol unit to obtain the M mapped data streams, specifically including: :

When M is equal to 2, symbols in the same position of the M mixed data streams are exchanged every other symbol to obtain the M mapped data streams.

18. The mobile communication method according to claim 16, characterized in that, the M is equal to 3, the M mixed data flows include mixed data flows C0, C1 and C2, and the M mixed data flows include The number of symbols in any one pulse of each mixed data stream is N, and N is a positive integer; the M mapped data streams include mapped data streams X0, XI and X2;

Demixing the symbols of the M mixed data streams in a single symbol unit to obtain the M mapped data streams specifically includes:

Take out the symbol at the 3*nth position of the mixed data stream CO in one pulse, the symbol at the 3*n+lth position of the mixed data stream C1 in the one pulse, and the mixed data stream C2 at The symbols at the 3*n+2th position in one pulse are placed in sequence at all locations of the mapped data stream X0. Within one pulse;

Take out the symbol at the 3*nth position of the mixed data stream C2 in the one pulse, and the symbol at the 3*n+1th position of the mixed data stream CO in the one pulse, and the mixed data stream C1 The symbol at the 3*n+2th position in the one pulse is sequentially placed in the one pulse of the mapping data stream XI;

Take out the symbol at the 3*nth position of the mixed data stream C1 in the one pulse, and the symbol at the 3*n+1th position of the mixed data stream C2 in the one pulse, and the mixed data stream CO The symbol at the 3*n+2th position in the one pulse is sequentially placed in the one pulse of the mapping data stream X2;

Wherein, the n is an integer, n=0,l,2,...,N/3-l.

19. The mobile communication method according to claim 16, characterized in that, the M is equal to 4, the M mixed data flows include mixed data flows C0, C1, C2 and C3, and the M mixed data flows The number of symbols in any one pulse of each mixed data stream in is N, and N is a positive integer; the M mapped data streams include mapped data streams X0, XI, X2 and X3;

Take out the symbol at the 4*nth position of the mixed data stream CO in one pulse, the symbol at the 4*n+1th position of the mixed data stream C1 in the one pulse, and the mixed data stream C2 at The symbol at the 4*n+2nd position in one pulse, the symbol at the 4*n+3rd position of the mixed data stream C3 within the one pulse, are placed in sequence at all positions of the mapped data stream X0 Within one pulse;

Take out the symbol at the 4*n position of the mixed data stream C3 in the one pulse, and the symbol at the 4*n+1 position of the mixed data stream CO in the one pulse, and the mixed data stream The symbol of C1 at the 4*n+2th position within the one pulse and the symbol of the mixed data stream C2 at the 4*n+3th position within the one pulse are placed in the mapped data stream XI in sequence. of said one within pulse;

Take out the symbol at the 4*n position of the mixed data stream C2 in the one pulse, and the symbol at the 4*n+1 position of the mixed data stream C3 in the one pulse, and the mixed data stream CO The symbol at the 4*n+2th position within the one pulse, the symbol at the 4*n+3th position of the mixed data stream C1 within the one pulse, are placed in the mapped data stream X2 in turn within one pulse;

Take out the symbol at the 4*n position of the mixed data stream C1 in the one pulse, and the symbol at the 4*n+1 position of the mixed data stream C2 in the one pulse, and the mixed data stream C3 The symbol at the 4*n+2th position within the one pulse, the symbol at the 4*n+3th position of the mixed data stream CO within the one pulse, are placed in the mapped data stream X3 in turn within one pulse;

Among them, n is a positive integer, n=0, 1, ··., N/4-1.

20. The mobile communication method according to claim 15, wherein the terminal demixes the M mixed data streams to generate M mapped data streams, which specifically includes:

Taking the symbols of any of the M mixed data streams within half a pulse as a unit, the symbols of the M mixed data streams are demixed to obtain the M mapped data streams.

21. The mobile communication method according to claim 20, wherein M is 2, and taking the symbols of any of the M mixed data streams within a half pulse as a unit, The symbols of the M mixed data streams are demixed to obtain the M mapped data streams, which specifically includes:

Compare the symbols of one of the M mixed data streams within half a pulse of one pulse with the symbols of another of the M mixed data streams within the half pulse of one pulse. Symbols are exchanged.

22. The mobile communication method according to claim 20, characterized in that, taking the symbols of any of the M mixed data streams within a half pulse as a unit, The symbols of the mixed data stream are unmixed to obtain the M mapped data streams, which specifically includes: taking the symbol of any of the M mixed data streams within half a pulse as a unit, dividing the M The mixed data stream is demixed on symbols within 4 pulses of a coding block.

23. The mobile communication method according to claim 22, wherein M is 4, and the M mapping data streams include mapping data streams X0, XI, X2 and X3; The number of symbols in each pulse of the mapped data stream is N, and N is a positive integer;

M mixed data flows include mixed data flows C0, Cl, C2 and C3;

Demixing the symbols of the M mixed data streams within 4 pulses of a coding block using the symbols of any of the M mixed data streams within half a pulse as a unit, specifically: include:

Take out the symbol of the 4*n half-pulse position of the mixed data stream CO in the one coding block, and the 4*n+l half-pulse position of the mixed data stream C1 in the one coding block. The symbol of the pulse position, the symbol of the 4*n+2 half-pulse position of the mixed data stream C2 in the one coding block, the 4*th symbol of the mixed data stream C3 in the one coding block The symbols at n+3 half-pulse positions are sequentially placed in the one encoding block of the mapped data stream X0;

Take out the symbol of the 4*n half pulse position of the mixed data stream C3 in the one coding block, and the 4*n+l half pulse position of the mixed data stream CO in the one coding block. The symbol of the pulse position, the symbol of the 4*n+2 half-pulse position of the mixed data stream C1 in the one coding block, the 4*th symbol of the mixed data stream C2 in the one coding block The symbols at n+3 half-pulse positions are sequentially placed in the one encoding block of the mapped data stream XI;

Take out the symbol of the 4*n half-pulse position of the mixed data stream C2 in the one coding block, and the 4*n+1 half pulse position of the mixed data stream C3 in the one coding block. The symbol of the pulse position, the symbol of the 4*n+2 half-pulse position of the mixed data stream CO in the one coding block, the 4*th symbol of the mixed data stream C1 in the one coding block The symbols at n+3 half-pulse positions are sequentially placed in the one encoding block of the mapped data stream X2; Take out the symbol of the 4*n half-pulse position of the mixed data stream CI in the one coding block, and the 4*n+1 half pulse position of the mixed data stream C2 in the one coding block. The symbol of the pulse position, the symbol of the 4*n+2 half-pulse position of the mixed data stream C3 in the one encoding block, the 4*th symbol of the mixed data stream CO in the one encoding block The symbols at n+3 half-pulse positions are sequentially placed in the one encoding block of the mapped data stream X3;

Among them, n is an integer, η=0,1.

24. The mobile communication method according to claim 15, wherein the terminal demixes the M mixed data streams and generates the M mapped data streams, which specifically includes:

Taking the symbol of any of the M mixed data streams in one pulse as a unit, the symbols of the M mixed data streams in 4 pulses of a coding block are demixed.

25. The mobile communication method according to claim 24, wherein M is 2, and taking the symbols of any of the M mixed data streams in one pulse as a unit, The M mixed data streams are demixed on symbols within 4 pulses of a coding block, specifically including:

Within the 4 pulses of one encoding block, symbols within one pulse of the M mixed data streams are exchanged every other pulse.

26. The mobile communication method according to claim 24, wherein M is equal to 4, the M mixed data flows include mixed data flows C0, C1, C2 and C3, and the M mapped data flows include Mapping data streams X0, XI, X2 and The symbols within each pulse are unmixed, including:

Take out the symbol of the 0th pulse position of the mixed data stream CO in the one coding block, and the symbol of the 1st pulse position of the mixed data stream C1 in the one coding block. The mixed data stream The symbol of C2 at the second pulse position in the one coding block and the symbol of the mixed data stream C3 at the third pulse position in the one coding block are placed in the mapping data in sequence. Within said one encoding block of stream xo;

Take out the symbol of the 0th pulse position of the mixed data stream C3 in the one encoding block, and the symbol of the 1st pulse position of the mixed data stream CO in the one encoding block. The mixed data stream The symbol of C1 at the 2nd pulse position in the one coding block and the symbol at the 3rd pulse position of the mixed data stream C2 in the one coding block are placed in sequence in all the mapping data streams XI. within a coding block;

Take out the symbol of the 0th pulse position of the mixed data stream C2 in the one encoding block, and the symbol of the 1st pulse position of the mixed data stream C3 in the one encoding block. The mixed data stream The symbol of CO at the second pulse position in the one coding block and the symbol at the third pulse position of the mixed data stream C1 in the one coding block are placed in sequence in all the mapping data streams X2. within a coding block;

Take out the symbol of the 0th pulse position of the mixed data stream C1 in the one encoding block, and the symbol of the 1st pulse position of the mixed data stream C2 in the one encoding block. The mixed data stream The symbol of the second pulse position of C3 in the one coding block and the symbol of the third pulse position of the mixed data stream CO in the one coding block are placed in sequence in all the mapping data streams X3. within a coding block.

27. A mobile communication device, characterized in that, the device includes:

Coding unit, used to modulate and code M initial data streams according to the modulation and coding method to obtain M modulated data streams, where M is a positive integer greater than 1, and M is not greater than the number of antennas; mapping unit, used Perform symbol mapping on the M modulated data streams obtained by the encoding unit respectively to generate M mapped data streams;

A mixing unit, used to mix the M mapping data streams received from the mapping unit to generate M mixed data streams;

A sending unit, configured to send the M mixed data streams generated by the mixing unit to the terminal on different antennas respectively.

28. The mobile communication device according to claim 27, wherein the mixing unit is specifically used for:

Using a single symbol as a unit, the symbols of the M mapped data streams in one pulse are mixed to obtain the M mixed data streams.

29. The mobile communication device according to claim 28, characterized in that the mixing unit is also used for:

30. The mobile communication device according to claim 28, wherein M is equal to 3, the M mapping data streams include mapping data streams X0, XI and X2, and the M mapping data streams include The number of symbols in each pulse of each mapped data stream is N, and N is a positive integer; the M mixed data streams include mixed data streams C0, C1 and C2;

The mixing unit is specifically used for:

Take one symbol at a time from the symbols in one pulse of the mapped data stream The 3*n+1th position within a pulse, the 3*n+2th position of the mixed data stream C2 within the one pulse;

Take one symbol at a time from the symbols in the one pulse of the mapped data stream At the 3*n+1th position within the one pulse, the mixed data stream CO is at the 3*n+2th position within the one pulse; Wherein, the n is an integer, n=0,l,2,...,N/3-l.

31. The mobile communication device according to claim 28, characterized in that, the M is equal to 4, the M mapping data streams include mapping data streams X0, XI, X2 and X3, and the M mapping data streams The number of symbols in any one pulse of each mapped data stream in is N, and N is a positive integer; the M mixed data streams include mixed data streams C0, Cl, C2 and C3;

The mixing unit is specifically used for:

Take one symbol at a time from the symbols in one pulse of the mapped data stream The 4*n+1 position within one pulse, the 4*n+2 position of the mixed data stream C2, the 4*n+3 position of the mixed data stream C3 within the one pulse Location;

Take one symbol at a time from the symbols in the one pulse of the mapped data stream At the 4*n+1 position within the one pulse, the mixed data stream C1 is at the 4*n+2 position within the one pulse, and the mixed data stream C2 is at the 4*n+2 position within the one pulse. The 4*n+3 position;

Take one symbol at a time from the symbols in the one pulse of the mapped data stream The 4*n+1th position within the mixed data stream CO is at the 4*n+2 position within the one pulse, and the mixed data stream C1 is at the 4*nth position within the one pulse. +3 positions; Take one symbol at a time from the symbols in the one pulse of the mapped data stream X3, and place it in the 4*nth position of the mixed data stream C1 in the one pulse, so The mixed data stream C2 is at the 4*n+1 position within the one pulse, the mixed data stream C3 is at the 4*n+2 position within the one pulse, and the mixed data stream CO is at The 4*n+3 position within one pulse;

Among them, the n is a positive integer, n=0, 1, ..., N/4-l.

32. The mobile communication device according to claim 27, characterized in that the mixing unit is specifically used for:

33. The mobile communication device according to claim 32, wherein M is 2, and the mixing unit is specifically used for:

34. The mobile communication device according to claim 32, wherein the mixing unit is specifically used for:

Taking the symbol of any one of the M mapping data streams within half a pulse as a unit, the symbols of the M mapping data streams within 4 pulses of a coding block are mixed.

35. The mobile communication device according to claim 34, wherein M is 4, and the M mapping data streams include mapping data streams X0, XI, X2 and X3; The number of symbols in one pulse of each mapped data stream is N, and N is a positive integer; the M mixed data streams include mixed data streams C0, Cl, C2 and C3;

The mixing unit is specifically used for:

From the mapped data stream Pulse position, the mixed data stream C1 is at the 4*n+1 half pulse position of the one coding block, and the mixed data stream C2 is at the 4*n+2 half pulse position of the one coding block Pulse position, the mixed data stream C3 is at the 4*n+3 half-pulse position of the one encoding block;

From the mapped data stream pulse position, the mixed data stream CO is at the 4*n+1 half pulse position of the one coding block, and the mixed data stream C1 is at the 4*n+2 half pulse position of the one coding block. pulse position, the mixed data stream C2 is at the 4*n+3 half-pulse position of the one encoding block;

From the mapped data stream Pulse position, the mixed data stream C3 is at the 4*n+1 half pulse position of the one coding block, and the mixed data stream CO is at the 4*n+2 half pulse position of the one coding block Pulse position, the mixed data stream C1 is at the 4*n+3 half-pulse position of the one encoding block;

From the mapped data stream The pulse position, the mixed data stream C2 is at the 4*n+1 half pulse position of the one coding block, the mixed data stream C3 is at the 4*n+2 half pulse position of the one coding block Pulse position, the mixed data stream CO is at the 4*n+3 half-pulse position of the one encoding block;

Wherein, the n is an integer, η=0,1.

36. The mobile communication device according to claim 27, wherein the mixing unit is specifically used for:

37. The mobile communication device according to claim 36, wherein M is 2, and the mixing unit is specifically used for:

38. The mobile communication device according to claim 36, characterized in that, the M is equal to 4, the M mapping data streams include mapping data streams X0, XI, X2 and X3; the M mixed data streams include Mixing data streams C0, Cl, C2 and C3, the mixing unit is specifically used for: One pulse data at a time is taken from the mapped data stream The data stream C1 is at the first pulse position of the one encoding block, the mixed data stream C2 is at the 2nd pulse position of the one encoding block, and the mixed data stream C3 is at the 3rd pulse position of the one encoding block. pulse position;

Take one pulse data at a time from the 4 pulses of the one coding block from the mapped data stream The data stream C2 is at the first pulse position of the one encoding block, the mixed data stream C3 is at the 2nd pulse position of the one encoding block, and the mixed data stream CO is at the 3rd pulse position of the one encoding block. pulse position.

39. The mobile communication device according to any one of claims 27-38, further comprising a receiving unit,

The receiving unit is configured to receive a measurement report of one mapped data stream obtained and fed back by the terminal according to the channel quality of the M mixed data streams; the encoding unit is also configured to receive a measurement report from the receiving unit according to The measurement report of the mapping data stream determines the modulation encoding coding method; or,

The receiving unit receives the carrier-to-interference ratio of one mapped data stream obtained and fed back by the terminal according to the carrier-to-interference ratio of the M mixed data streams; the encoding unit is also configured to receive the carrier-to-interference ratio from the receiving unit. The carrier-to-interference ratio of the mapping data stream determines the modulation and coding mode.

40. A terminal, characterized by including:

The receiving unit is used to receive M mixed data streams sent by the network side device, where M is a positive integer greater than 1;

An acquisition unit, configured to acquire the channel quality of the M mixed data streams received by the receiving unit;

A sending unit, configured to obtain the channel quality of one mapped data stream according to the channel quality of the M mixed data streams obtained by the obtaining unit, and send it to the network side device through a measurement report.

41. The terminal according to claim 40, characterized in that the terminal further includes: a demixing unit, configured to demix the M mixed data streams received by the receiving unit and generate M mapping data flow.

42. The terminal according to claim 41, characterized in that the demixing unit is specifically used to:

43. The terminal according to claim 42, characterized in that the demixing unit is further used for:

44. The terminal according to claim 42, characterized in that, the M is equal to 3, the M mixed data flows include mixed data flows C0, C1 and C2, and each of the M mixed data flows The number of symbols of the mixed data stream in any pulse is N, and the N is a positive integer; the M channels Mapping data streams include mapping data streams X0, XI and X2;

The demixing unit is specifically used for:

Take out the symbol at the 3*nth position of the mixed data stream CO in one pulse, the symbol at the 3*n+1th position of the mixed data stream C1 in the one pulse, and the mixed data stream C2 at The symbol at the 3*n+2th position in the one pulse is sequentially placed in the one pulse of the mapping data stream X0;

Wherein, the n is an integer, n=0,l,2,...,N/3-l.

45. The terminal according to claim 42, wherein M is equal to 4, the M mixed data flows include mixed data flows C0, C1, C2 and C3, and the M mixed data flows include The number of symbols in any one pulse of each mixed data stream is N, and N is a positive integer; the M mapped data streams include mapped data streams X0, XI, X2 and X3;

The demixing unit is specifically used for:

Take out the symbol at the 4*nth position of the mixed data stream CO in one pulse, the symbol at the 4*n+1th position of the mixed data stream C1 in the one pulse, and the mixed data stream C2 at The symbol at the 4*n+2nd position in one pulse, the symbol at the 4*n+3rd position of the mixed data stream C3 within the one pulse, are placed in sequence at all positions of the mapped data stream X0 Within one pulse; Take out the symbol at the 4*nth position of the mixed data stream C3 in the one pulse, and the symbol at the 4*n+1th position of the mixed data stream CO in the one pulse, and the mixed data stream The symbol of C1 at the 4*n+2th position within the one pulse and the symbol of the mixed data stream C2 at the 4*n+3th position within the one pulse are placed in the mapped data stream XI in sequence. within one pulse;

Among them, n is a positive integer, n=0, 1, ··., N/4-1.

46. The terminal according to claim 41, characterized in that the demixing unit is specifically configured to: take the symbol of any of the M mixed data streams within a half pulse as a unit, The symbols of the M mixed data streams are demixed to obtain the M mapped data streams.

47. The terminal according to claim 46, wherein M is 2, and the demixing unit is specifically used for:

48. The terminal according to claim 46, wherein the demixing unit is specifically used to: Taking the symbol of any of the M mixed data streams within half a pulse as a unit, the symbols of the M mixed data streams within 4 pulses of a coding block are demixed.

49. The terminal according to claim 48, wherein M is 4, and the M mapping data streams include mapping data streams X0, XI, X2 and X3; each of the M mapping data streams The number of symbols of the mapped data stream in one pulse is N, and N is a positive integer; the M mixed data streams include mixed data streams C0, Cl, C2 and C3;

The demixing unit is specifically used for:

Take out the symbol of the 4*n half pulse position of the mixed data stream C3 in the one coding block, and the 4*n+1 half pulse position of the mixed data stream CO in the one coding block. The symbol of the pulse position, the symbol of the 4*n+2 half-pulse position of the mixed data stream C1 in the one encoding block, the 4*th symbol of the mixed data stream C2 in the one encoding block The symbols at n+3 half-pulse positions are sequentially placed in the one encoding block of the mapped data stream XI;

Take out the symbol of the 4*n half-pulse position of the mixed data stream C2 in the one coding block, and the 4*n+1 half pulse position of the mixed data stream C3 in the one coding block. The symbol of the pulse position, the symbol of the 4*n+2 half-pulse position of the mixed data stream CO in the one coding block, the 4*th symbol of the mixed data stream C1 in the one coding block The symbols at n+3 half-pulse positions are sequentially placed in the one encoding block of the mapped data stream X2;

Take out the symbol of the 4*n half-pulse position of the mixed data stream C1 in the one coding block, and the 4*n+1 half pulse position of the mixed data stream C2 in the one coding block. The symbol of the pulse position, the 4*n+2 half-pulse bit of the mixed data stream C3 in the one encoding block The symbols placed, the symbols at the 4*n+3 half-pulse position of the mixed data stream CO in the one coding block, are sequentially placed in the one coding block of the mapped data stream X3;

Among them, n is an integer, η=0,1.

50. The terminal according to claim 41, wherein the demixing unit is specifically configured to: take the symbol of any of the M mixed data streams in one pulse as a unit, M mixed data streams are demixed on symbols within 4 pulses of a coding block.

51. The terminal according to claim 50, wherein M is 2, and the demixing unit is specifically used for:

52. The terminal according to claim 50, wherein M is equal to 4, the M mixed data streams include mixed data streams C0, C1, C2 and C3, and the M mapped data streams include mapping data Streams X0, XI, X2 and X3; the demixing unit is specifically used for:

Take out the symbol of the 0th pulse position of the mixed data stream CO in the one encoding block, and the symbol of the 1st pulse position of the mixed data stream C1 in the one encoding block. The mixed data stream The symbol of the second pulse position of C2 in the one coding block and the symbol of the third pulse position of the mixed data stream C3 in the one coding block are placed in sequence in all the mapping data streams X0. within a coding block;

Take out the symbol of the 0th pulse position of the mixed data stream C2 in the one encoding block, and the symbol of the 1st pulse position of the mixed data stream C3 in the one encoding block. The symbol of the second pulse position of the data stream CO in the one coding block and the symbol of the third pulse position of the mixed data stream C1 in the one coding block are placed in the mapped data stream X2 in sequence. within one of the coding blocks;