WO2015042837A1

WO2015042837A1 - Signal sending and receiving method, apparatus and system

Info

Publication number: WO2015042837A1
Application number: PCT/CN2013/084343
Authority: WO
Inventors: 夏亮; 李强; 马莎
Original assignee: 华为技术有限公司
Priority date: 2013-09-26
Filing date: 2013-09-26
Publication date: 2015-04-02
Also published as: CN105284062A

Abstract

Embodiments of the present invention relate to the field of communications. Disclosed are a signal sending and receiving method, an apparatus and a system, which solve a problem that a dynamic signaling overhead for transmitting a noise coefficient. A specific scheme is: a first communication device receiving joint coding information sent by a second communication device, wherein the joint coding information is generated by the second communication device based on a first noise coefficient and a modulation coding policy, and the modulation coding policy is used by the first communication device to decode received data; and the first communication device obtaining the first noise coefficient based on the joint coding information, and parsing the received data based on the first noise coefficient. The present invention is used for sending and receiving signals.

Description

Signal transmitting and receiving method, device and system

Technical field

The present invention relates to the field of communications, and in particular, to a signal transmitting and receiving method, apparatus, and system.

Background technique

EVM (Error Vector Magnitude) is a transmission noise figure that measures the quality of a modulated signal. EVM is the ratio of the rms value of the average power of the error vector signal to the rms value of the average power of the ideal signal, usually expressed as a percentage. The smaller the EVM value, the better the signal quality. Sometimes EVM is also expressed in decibels. The larger the EVM value in decibels, the better the signal quality. The EVM of the signal transmitting end indicates the proximity of the actual signal generated by the transmitting end to the ideal signal, and the EVM of the signal receiving end indicates the proximity of the actual signal generated by the receiving end to the ideal signal. Normally, the EVM of the signal transmitting end can reflect the noise power introduced by the signal transmitting end, and the E V M of the signal receiving end can reflect the noise power introduced by the signal receiving end.

In a hotspot scenario, such as a relay scenario, an LTE (Long Term Evolution) hotspot promotion scenario, and a small cell scenario, because the signal-to-noise obtained by the UE is relatively large, the Ε V 发送 at the transmitting end may become the channel quality affecting the receiving end. Measurement and signal demodulation are important factors that affect system performance.

In order to solve the above problem, the transmitting end needs to send the EVM to the receiving end, so that the receiving end processes the received signal according to the EVM, and reduces the influence of the EVM on the signal. However, in the prior art, the transmitting end transmits the EVM in the field of the frame, which occupies a multi-bit byte and occupies a large amount of dynamic signaling.

Summary of the invention

Embodiments of the present invention provide a signal transmitting and receiving method, apparatus, and system, which solve the problem of excessive dynamic signaling overhead of transmission noise coefficients.

In order to achieve the above object, embodiments of the present invention use the following technical solutions:

In a first aspect, a signal receiving method includes:

The first communication device receives the joint coding information sent by the second communication device, where the joint coding information is generated by the second communication device according to the first noise coefficient and the modulation and coding strategy, where The modulation coding strategy is used by the first communication device to decode the received data; the first communication device acquires the first noise coefficient according to the joint coding information, and parses and receives according to the first noise coefficient Data to.

In combination with the first aspect, in a first possible implementation manner,

The first noise figure is a noise figure indicating a relationship between noise power and channel power, or the first noise figure is a noise figure indicating a noise power introduced by a transmitting end.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in the second possible implementation, the parsing the received data according to the first noise coefficient comprises: the first communications device Acquiring a noise covariance matrix according to the first noise coefficient, and parsing the received data according to the noise covariance matrix.

With reference to the first aspect to the second possible implementation of the first aspect, in a third possible implementation, the method further includes:

The first communication device acquires a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port;

Generating, by the first communications device, channel coefficients according to reference signals of the at least four resource elements;

The first communication device generates a third noise coefficient according to the reference signals of the at least four resource elements;

The first communication device generates a second noise coefficient according to the channel coefficient and the third noise coefficient;

The first communication device transmits the second noise figure to the second communication device. With reference to the first aspect to the second possible implementation of the first aspect, in a fourth possible implementation, the method further includes:

The first communication device acquires a channel quality indicator CQI according to the first noise figure; the first communication device transmits the channel quality indicator to the second communication device.

In a second aspect, a signal transmission method includes:

The second communication device acquires the first noise figure;

The second communication device generates a modulation coding strategy and the first noise coefficient coding Coding information

The second communication device sends the joint coding information to the first communication device; the second communication device encodes the data according to the joint coding information and sends the data to the first communication device.

In combination with the second aspect, in a first possible implementation manner,

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation, the second communications device generates, by using a modulation and coding strategy, the first noise coefficient, to generate joint coding information, Includes:

The second communication device encodes a preset number of combinations, wherein each combination mode includes one candidate noise coefficient and one candidate modulation coding strategy;

The second communication device will include a second possible implementation of the second aspect in combination with the first noise figure and the modulation and coding strategy. In a third possible implementation,

The candidate modulation coding strategy includes at least a candidate modulation order;

The preset number of combinations is divided into N sets, where N is an integer greater than 1, and in the nth set, candidate modulation orders of each combination of the nth set belong to an nth preset modulation a set of orders, and candidate noise coefficients for each combination of the nth set are candidate values within a range of nth preset values, n being an integer from 1 to N.

In conjunction with the second possible implementation of the second aspect, in a fourth possible implementation,

The candidate modulation and coding strategy includes at least a candidate transport block size number;

The preset number of combinations is divided into N sets, where N is an integer greater than 1. In the nth set, the candidate transport block size number of each combination of the nth set belongs to the nth preset. Transmitting a block size number set, and candidate noise coefficients for each combination of the nth set are candidate values within a range of nth preset values, n being an integer from 1 to N.

In combination with the second possible implementation of the second aspect, in a fifth possible implementation Medium,

The preset number of combinations is divided into N sets, where N is an integer greater than 1, and in the nth set, the candidate modulation coding strategy of each combination of the nth set belongs to the nth preset candidate The modulation coding policy set is modulated, and the candidate noise figure of each combination manner of the nth set is a candidate value within the nth preset value range, and n is an integer from 1 to N.

With reference to the second aspect, the fifth possible implementation manner of the second aspect, in the sixth possible implementation, the acquiring, by the second communications device, the first noise figure includes:

The second communication device receives a second noise coefficient sent by the first communication device; and the second communication device generates the first noise coefficient according to the second noise coefficient. With reference to the second aspect to the fifth possible implementation of the second aspect, in a seventh possible implementation, after the sending, by the second communications device, the joint encoding information to the first communications device, the method further includes:

The second communication device receives a channel quality indicator sent by the first communication device. In a third aspect, a signal receiving method includes:

The first communication device generates a first noise figure, the first noise coefficient is a relationship noise figure indicating a noise power and a channel power, or the first noise coefficient is a noise coefficient indicating a noise power introduced by the transmitting end;

The first communication device parses the received data according to the first noise figure.

With reference to the third aspect, in a first possible implementation manner, the generating, by the first communications device, a noise figure includes:

The first communication device generates a second noise coefficient according to the reference signals of the at least four resource elements;

The first communication device generates the first noise figure based on the channel coefficient and the second noise figure.

Combining the third aspect or the first possible implementation of the third aspect, in the second possibility In an implementation manner, the first communications device parses the received data according to the first noise figure, including:

The first communication device acquires a noise covariance matrix according to the first noise coefficient, and parses the received data according to the noise covariance matrix.

With the second possible aspect of the third aspect to the third aspect, in a third possible implementation manner of the third aspect, after the first communications device generates the first noise figure, the method further includes:

The first communication device acquires a channel quality indicator according to the first noise coefficient; the first communication device transmits the channel quality indicator to a second communication device. In a fourth aspect, a data feedback method includes:

The first communication device acquires a channel quality indicator according to a noise figure;

The first communication device transmits the acquired channel quality indicator to the second communication device.

With reference to the fourth aspect, in a first possible implementation manner, the first communications device acquires a channel quality indicator according to a noise figure, including:

The first communication device receives a first noise coefficient sent by the second communication device; the first communication device acquires a channel quality indicator according to the received first noise coefficient.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the first communications device acquires a channel quality indicator according to a noise figure, including:

The first communication device generates a second noise coefficient, the second noise coefficient is a relationship noise coefficient indicating a noise power and a channel power, or the second noise coefficient is a noise coefficient indicating a noise power introduced by the transmitting end;

The first communication device acquires a channel quality indicator according to the generated second noise figure.

With reference to the second possible implementation of the fourth aspect, in a third possible implementation, the generating, by the first communications device, the second noise coefficient includes:

The first communication device acquires at least four in a physical resource block occupied by the reference signal port Reference signals of resource elements;

The first communication device generates the second noise coefficient based on the channel coefficient and the third noise figure.

In a fifth aspect, a first communication device includes:

a receiving unit, configured to receive joint coding information sent by the second communication device, where the joint coding information is generated by the second communication device according to a first noise coefficient and a modulation and coding policy, where the modulation and coding strategy is used by the a communication device that decodes the received data; an obtaining unit, configured to acquire the first noise coefficient according to the joint coding information received by the receiving unit;

The receiving unit is further configured to parse the received data according to the first noise coefficient acquired by the acquiring unit.

In combination with the fifth aspect, in the first possible implementation manner,

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner,

The acquiring unit is further configured to acquire a noise covariance matrix according to the first noise coefficient;

The receiving unit is further configured to parse the received data according to the noise covariance matrix acquired by the acquiring unit.

With reference to the second possible implementation manner of the fifth aspect to the fifth aspect, in a third possible implementation manner,

The acquiring unit is further configured to acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four resources. The reference signal of the element generates a third noise figure, the root Generating a second noise figure according to the channel coefficient and the third noise figure;

The first communication device further includes a sending unit;

The sending unit is configured to send the second noise coefficient generated by the acquiring unit to the second communications device.

With reference to the second possible implementation manner of the fifth aspect to the fifth aspect, in a fourth possible implementation manner,

The acquiring unit is further configured to acquire a channel quality indicator according to the first noise coefficient; the first communications device further includes a sending unit;

The sending unit is configured to send the channel quality indicator acquired by the acquiring unit to the second communications device.

In a sixth aspect, a second communications device includes:

An acquiring unit, configured to acquire a first noise figure;

a coding unit, configured to encode the modulation coding strategy and the first noise coefficient acquired by the acquiring unit to generate joint coding information; a communication device;

The coding unit is further configured to: encode the data according to the joint coding information; and the sending unit is further configured to send the data encoded by the coding unit to the first communication device.

In combination with the sixth aspect, in a first possible implementation manner,

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner,

The coding unit is further specifically configured to encode a preset number of combinations, where each combination includes a candidate noise coefficient and a candidate modulation coding strategy, and the first noise coefficient and the modulation are included The coding corresponding to the combination of coding strategies is used as the joint coding information.

Combining the second possible implementation of the sixth aspect, in a third possible implementation Medium,

The modulation and coding strategy includes at least a candidate modulation order;

In conjunction with the second possible implementation of the sixth aspect, in a fourth possible implementation,

The modulation and coding strategy includes at least a candidate transport block size number;

In combination with the second possible implementation manner of the sixth aspect, in a fifth possible implementation manner,

With the sixth possible implementation of the sixth aspect to the sixth aspect, in a sixth possible implementation, the second communications device further includes a receiving unit;

The receiving unit is configured to receive a second noise coefficient sent by the first communications device, where the acquiring unit is further configured to generate the first noise coefficient according to the second noise coefficient received by the receiving unit.

With reference to the fifth possible implementation manner of the sixth aspect to the sixth aspect, in a seventh possible implementation, the first communications device further includes a receiving unit;

The receiving unit is configured to receive a channel quality indicator sent by the first communications device. In a seventh aspect, a first communications device includes:

An acquiring unit, configured to generate a first noise coefficient, where the first noise coefficient is indicative of noise a noise figure of the relationship between power and channel power, or the first noise figure is a noise figure indicating a noise power introduced by the transmitting end;

And a receiving unit, configured to parse the received data according to the first noise coefficient generated by the acquiring unit.

In combination with the seventh aspect, in a first possible implementation manner,

The acquiring unit is further configured to: acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four The reference signal of the resource element generates a second noise figure, and the first noise figure is generated according to the channel coefficient and the second noise figure.

With reference to the seventh aspect or the first possible implementation manner of the seventh aspect, in a second possible implementation manner,

The acquiring unit is further configured to acquire a noise covariance matrix according to the first noise coefficient,

With reference to the second possible implementation manner of the seventh aspect to the seventh aspect, in a third possible implementation manner,

The sending unit is configured to send the channel quality indicator acquired by the acquiring unit to a second communications device.

In an eighth aspect, a first communication device includes:

An acquiring unit, configured to acquire a channel quality indicator according to a noise coefficient;

And a sending unit, configured to send the channel quality indicator acquired by the acquiring unit to the second communications device.

With reference to the eighth aspect, in a first possible implementation manner, the first communications device further includes a receiving unit,

The receiving unit is configured to receive a first noise coefficient sent by the second communications device, where the acquiring unit is further configured to be used according to the first noise received by the receiving unit The acoustic coefficient acquires a channel quality indicator.

With reference to the eighth aspect or the first possible implementation manner of the eighth aspect, in a second possible implementation manner,

The acquiring unit is further configured to generate a second noise coefficient, and obtain a channel quality indicator according to the generated second noise coefficient, where the second noise coefficient is a relationship noise coefficient indicating a relationship between noise power and channel power Or the second noise figure is a noise figure indicating a noise power introduced by the transmitting end.

In conjunction with the second possible implementation of the eighth aspect, in a third possible implementation manner,

The acquiring unit is further configured to acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four resources. The reference signal of the element generates a third noise figure, and the second noise figure is generated according to the channel coefficient and the third noise figure.

In a ninth aspect, a first communication device includes a processor, a bus, a memory, and a receiver, wherein the processor, the memory, and the receiver are connected to each other through the bus; wherein, the receiver is used by Receiving joint coding information sent by the second communication device, where the joint coding information is generated by the second communication device according to a first noise coefficient and a modulation and coding policy, where the modulation and coding strategy is used by the first communication device The received data is decoded;

The processor is configured to acquire the first noise coefficient according to the joint coding information received by the receiver;

The receiver is further configured to parse the received data according to the first noise coefficient acquired by the processor.

In conjunction with the ninth aspect, in a first possible implementation manner,

With reference to the ninth aspect or the first possible implementation manner of the ninth aspect, in a second possible implementation manner,

The processor is further configured to acquire a noise covariance moment according to the first noise coefficient Array

The receiver is further configured to parse the received data according to the noise covariance matrix acquired by the processor.

With reference to the second possible implementation manner of the ninth to ninth aspects, in a third possible implementation manner,

The processor is further configured to acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four resources. The reference signal of the element generates a third noise figure, and generates a second noise coefficient according to the channel coefficient and the third noise coefficient;

The first communication device further includes a transmitter, and the transmitter is connected to the processor, the memory, and the receiver through a bus;

The transmitter is configured to send the second noise coefficient generated by the processor to the second communications device.

With reference to the second possible implementation manner of the ninth to ninth aspects, in a fourth possible implementation manner,

The processor is further configured to acquire a channel quality indicator according to the first noise coefficient; the first communications device further includes a transmitter, the transmitter and the processor, the memory, and the The receivers are connected to each other;

The transmitter is configured to send the channel quality indicator acquired by the processor to the second communications device.

According to a tenth aspect, a second communication device includes a processor, a memory, a bus, and a transmitter, wherein the processor, the memory, and the transmitter are connected to each other through the bus; wherein, the processor is used by Obtaining a first noise figure, encoding the modulation coding strategy and the obtained first noise coefficient to generate joint coding information;

The transmitter is configured to send the joint coding information generated by the processor to a first communication device;

The processor is further configured to: encode data according to the joint coding information; and the transmitter is further configured to send the coded data of the processor to the first communication device. In combination with the tenth aspect, in a first possible implementation manner,

With reference to the tenth aspect or the first possible implementation manner of the tenth aspect, in a second possible implementation manner,

The processor is further configured to encode a preset number of combinations, where each combination includes a candidate noise coefficient and a candidate modulation coding strategy, and the first noise coefficient and the modulation are included The coding corresponding to the combination of coding strategies is used as the joint coding information.

In conjunction with the second possible implementation of the tenth aspect, in a third possible implementation manner,

In conjunction with the second possible implementation of the tenth aspect, in a fourth possible implementation,

With reference to the second possible implementation manner of the tenth aspect, in a fifth possible implementation manner,

The preset number of combinations is divided into N sets, where N is an integer greater than 1, and in the nth set, the candidate modulation coding strategy of each combination of the nth set belongs to the nth preset candidate The modulation coding policy set is modulated, and the candidate noise figure of each combination manner of the nth set is a candidate value within the nth preset value range, and n is an integer from 1 to N. With the fifth possible implementation of the tenth aspect to the tenth aspect, in a sixth possible implementation, the second communications device further includes a receiver, the receiver and the processor, The memory and the transmitter are connected to each other;

The receiver is configured to receive a third noise coefficient sent by the first communications device, where the processor is further configured to generate the first noise coefficient according to the third noise coefficient received by the receiver.

With the fifth possible implementation of the tenth aspect to the tenth aspect, in a seventh possible implementation, the second communications device further includes a receiver, the receiver and the processor, The memory and the transmitter are connected to each other;

The receiver is configured to receive a channel quality indicator sent by the first communications device. In an eleventh aspect, a first communication device includes a processor, a memory, a bus, and a receiver, wherein the processor, the memory, and the receiver are connected to each other through the bus; and the processor is configured to: Generating a first noise figure, the first noise figure is a noise figure indicating a relationship between the noise power and the channel power, or the first noise figure is a noise figure indicating a noise power introduced by the transmitting end;

The receiver is configured to parse the received data according to the first noise coefficient generated by the processor.

In combination with the eleventh aspect, in a first possible implementation manner,

The processor is further configured to: acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four The reference signal of the resource element generates a second noise figure, and the first noise figure is generated according to the channel coefficient and the second noise figure.

With reference to the eleventh aspect or the first possible implementation manner of the eleventh aspect, in a second possible implementation manner,

The processor is further configured to acquire a noise covariance matrix according to the first noise coefficient,

Combining the second possible implementation of the eleventh to eleventh aspects, in the third Possible implementations,

The transmitter is configured to send the channel quality indicator acquired by the processor to a second communications device.

According to a twelfth aspect, a first communication device includes a processor, a memory, a bus, and a transmitter, wherein the processor, the memory, and the transmitter are connected to each other through the bus: the processor is configured to: Obtaining a channel quality indicator according to a noise figure;

In a first possible implementation, the first communications device further includes a receiver, Connect,

The receiver is configured to receive a first noise coefficient sent by the second communications device, where the processor is further configured to acquire a channel quality indicator according to the first noise coefficient received by the receiver.

In conjunction with the twelfth aspect or the first possible implementation of the twelfth aspect, in a second possible implementation,

The processor is further configured to generate a second noise coefficient, and obtain a channel quality indicator according to the generated second noise coefficient, where the second noise coefficient is a relationship noise coefficient indicating a relationship between noise power and channel power Or the second noise figure is a noise figure indicating a noise power introduced by the transmitting end.

In conjunction with the second possible implementation of the twelfth aspect, in a third possible implementation manner,

The processor is further configured to acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four resources. The reference signal of the element generates a third noise figure, and the second noise figure is generated according to the channel coefficient and the third noise figure. A thirteenth aspect, a wireless network system, comprising: at least one first communication device; wherein the first communication device is any one of the fourth possible implementation manners of the fifth aspect to the fifth aspect First communication device;

Alternatively, the first communication device is the first communication device according to any one of the ninth aspect to the ninth possible implementation of the ninth aspect.

With reference to the thirteenth aspect, in a first possible implementation, the wireless network system further includes at least one second communications device;

Wherein, when the first communication device is the first communication device according to any one of the fifth aspect to the fourth possible implementation manner of the fifth aspect, the second communication device is the sixth aspect to the a second communication device according to any one of the seventh possible implementations of the sixth aspect; or, when the first communication device is any of the ninth to ninth possible implementations of the ninth aspect The second communication device is the second communication device according to any one of the seventh to tenth possible implementations of the tenth aspect.

A fourteenth aspect, a wireless network system, comprising at least one first communication device, the first communication device being the first one of any of the third aspect to the third possible implementation of the seventh aspect communication device;

Alternatively, the first communication device is the first communication device according to any one of the third possible implementations of the eleventh to eleventh aspects.

A fifteenth aspect, a wireless network system, comprising at least one first communication device, wherein the first communication device is the first one of any one of the third aspect to the third possible implementation of the eighth aspect communication device;

Alternatively, the first communication device is the first communication device of any one of the twelfth possible implementations of the twelfth aspect to the twelfth aspect.

The signal transmission and reception method provided by the embodiment of the present invention generates the joint coding information by encoding the modulation coding strategy and the first noise coefficient, and sends the joint coding information to the first communication device, and encodes the data according to the joint coding information. Transmitting to the first communication device reduces dynamic signaling consumed by transmitting the first noise figure.

DRAWINGS

In order to more clearly illustrate the technical solution in the embodiment of the present invention, the following describes the embodiment. The drawings used in the description are briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

1 is a schematic flowchart of a signal receiving method according to an embodiment of the present invention; FIG. 2 is a schematic flowchart of a signal sending method according to an embodiment of the present invention; FIG. 3 is a schematic diagram of a signal sending according to an embodiment of the present invention; FIG. 4 is a schematic flowchart of another signal receiving method according to another embodiment of the present invention; FIG. 5 is a schematic flowchart of another signal receiving method according to another embodiment of the present invention; A schematic diagram of a data feedback method provided by an embodiment of the present invention; FIG. 7 is a schematic structural diagram of a first communication device according to an embodiment of the present invention; FIG. 8 is a second communication device structure according to an embodiment of the present invention; FIG. 9 is a schematic structural diagram of another first communication device according to an embodiment of the present invention; FIG. 10 is a schematic structural diagram of still another first communication device according to an embodiment of the present invention; A schematic diagram of a first communication device provided by an embodiment; FIG. 12 is a second communication device according to another embodiment of the present invention. Schematic; another configuration example of a first communication device to provide another embodiment of the present invention. FIG. 13 a schematic diagram;

FIG. 14 is a schematic structural diagram of still another first communication device according to another embodiment of the present invention; FIG.

FIG. 15 is a schematic structural diagram of a wireless network system according to an embodiment of the present invention; FIG. 16 is a schematic diagram of another wireless network system architecture according to an embodiment of the present invention; Schematic diagram of the wireless network system architecture. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the embodiment of the present invention, a base station (BS) may be a device that communicates with a user equipment (UE) or other communication station, such as a relay station, and the base station may provide communication in a specific physical area. cover. For example, the base station may specifically be

Base Transceiver Station (BTS) in GSM or CDMA Or a base station controller (BSC); it can also be a Node B (Node B, abbreviated as NB) in UMTS or a Radio Network Controller (RNC) in UMTS; Is an evolved base station in LTE

(Evolutional Node B, abbreviated as ENB or eNodeB); or it may be another access network device in the wireless communication network that provides access services, which is not limited by the present invention.

In the embodiment of the present invention, the UEs may be distributed throughout the wireless network, and each UE may be static or mobile. A UE may be referred to as a terminal, a mobile station, a subscriber unit, a station, or the like. The UE can be a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer.

(laptop computer), cordless phone, wireless local loop (WLL). Embodiments of the present invention provide a signal receiving method. In a wireless network system, when data is transmitted between a second communications device and a first communications device, in order to reduce the impact of noise on the signal, the received data needs to be parsed according to the noise figure. Therefore, the second communication device needs to transmit the noise figure to the first communication device in order for the first communication device to parse the received data. The signal receiving method implements signal reception based on the first communication device in the wireless network system, and can save transmission noise coefficient between the second communication device and the first communication device; In the embodiment of the present invention, optionally, the first communication device is a UE (User Equipment), and the second communication device is a base station or an access point; or the first communication device is a base station or an access point, and the second The communication device is a UE; or the first communication device is a base station or an access point, and the second communication device is a base station or an access point; or the first communication device is a UE, and the second communication device is a UE, as shown in FIG. , including the following steps:

101. The first communications device receives the joint encoding information sent by the second communications device.

The joint coding information is generated by the second communication device according to the first noise coefficient and the modulation and coding strategy. The first noise figure is a noise figure indicating a relationship between the noise power and the channel power, or the first noise figure is a noise figure indicating the noise power introduced by the transmitting end. Specific The first noise figure may be a rate of change of the noise power received by the first communication device with the channel power, or a ratio of the partial noise power received by the first communication device to the channel power, where the channel power is in one The channel power on the resource element or the average of the channel power on multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end. Specifically, the sending end may be a communications device for sending a received signal of the first communications device, for example, the sending end may be the second communications device. The modulation coding strategy is used by the first communication device to decode the received data. By jointly coding the first noise coefficient and the modulation and coding strategy, the dynamic signaling dedicated to transmitting the noise coefficient is reduced.

102. The first communications device acquires a first noise coefficient according to the joint coding information, and parses the received data according to the first noise coefficient.

When parsing the received data, the first communication device refers to the noise figure, reduces the influence of the noise coefficient on the signal, and ensures that the error between the received actual signal and the ideal signal is small.

The signal receiving method provided by the embodiment of the present invention receives the joint coding information generated by the first noise coefficient and the modulation and coding strategy jointly encoded by the first communication device, parses the received data according to the first noise coefficient, and reduces the transmission of the first noise. The dynamic signaling of the coefficient and the consumption.

The embodiment of the present invention provides a signal transmitting method, which corresponds to the signal receiving method of the above embodiment, and the signal transmitting method is based on the second communication device in the wireless network to implement signal transmission. Referring to FIG. 2, the method includes the following steps:

201. The second communications device acquires a first noise figure.

The second communication device may generate the first noise coefficient according to the received second noise coefficient, or may directly generate the first noise coefficient by itself, where the second noise coefficient may be sent by the first communication device, or may be sent by another communication device. of.

Optionally, the method for generating the second noise figure is a method for generating a second noise coefficient in steps 301-303 in the embodiment corresponding to FIG. 3, where the first noise coefficient may be the same as the second noise coefficient, when the second When there are a plurality of noise coefficients, the first noise coefficient may be an average of the plurality of second noise coefficients. The first noise figure is a noise figure indicating a relationship between the noise power and the channel power, or the first noise figure is a noise figure indicating the noise power introduced by the transmitting end. With The first noise figure may be a rate of change of the noise power received by the first communication device with the channel power, or a ratio of the partial noise power received by the first communication device to the channel power, where the channel power refers to The channel power on one resource element or the average of the channel power on multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end. Specifically, the sending end may be a communications device for sending a received signal of the first communications device, for example, the sending end may be the second communications device.

202. The second communications device generates the joint coding information by encoding the modulation and coding strategy and the first noise coefficient.

When encoding the modulation and coding strategy, the first noise coefficient is encoded into the modulation and coding strategy to replace the original unnecessary parameters in the modulation and coding strategy or directly programmed into idle bytes or idle bits, so that the first noise coefficient and the modulation code are obtained. The strategy becomes a unified joint coding information, which reduces the dynamic signaling that is required to transmit the first noise figure.

203. The second communications device sends the joint encoding information to the first communications device.

The first communication device may be a communication device that reports the second noise figure, and may not be a communication device that reports the second noise figure. When the first communication device is not the communication device that reports the second noise figure, the second The noise figure can be reported by other communication devices.

In the following, the second communication device is used as the base station, and the first communication device is used as the first UE. The second noise coefficient may be reported by the first UE to the base station, and may also be reported by other UEs to the base station. The other UE measures the reported second noise figure to perform data interaction with the first UE.

204. The second communications device encodes the data according to the joint encoding information and sends the data to the first communications device.

The signal transmission method provided by the embodiment of the present invention generates the joint coding information by encoding the modulation coding strategy and the first noise coefficient by the second communication device, and sends the joint coding information to the first communication device, and performs data on the data according to the joint coding information. The encoding is sent to the first communication device, reducing the dynamic signaling consumed by transmitting the first noise figure.

Optionally, based on the foregoing embodiment corresponding to FIG. 1 and the specific implementation method of the embodiment corresponding to FIG. 2, the embodiment of the present invention provides a specific signal sending and receiving method, where As shown in Figure 3, the following steps are included:

301. The first communications device acquires a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port.

Optionally, the reference signal of the at least four resource elements may be a cell-specific reference signal (CRS). Specifically, in a reference signal, a received signal vector of the first communication device on the first resource element may be expressed by a formula (1):

Υ^Η Χ, + Ν^ + Ν^, (1) where represents the received signal vector, represents the channel matrix, represents the transmitted signal vector, represents the first noise figure, represents the receiving side noise figure, where = 1, ² ...... ⁸ , corresponding to the position of 8 resource elements occupied by one reference signal in the physical resource block.

302. The first communications device generates a channel coefficient and a third noise figure according to the reference signals of the at least four resource elements.

The third noise figure is a noise figure related to the channel coefficient and the first noise figure. Specifically, the channel coefficients on the ''th resource element' can be expressed by the formula (2):

H^Y X, (2) Of course, the calculation method of the channel coefficient is not limited thereto, and the embodiment of the present invention merely gives a preferred feasible calculation method.

Calculate the third noise according to formula (3)

Wherein the third noise figure is represented, and the difference between the received signal of the two channel coefficients and the received signal divided by the transmitted signal is = Y _jV IX _jV - Y _j2 1 X _j2 .

Calculate the average channel coefficient using equation (4):

twenty four)

303. The first communications device generates a second noise coefficient according to the third noise figure and the channel coefficient, and sends the second noise coefficient to the second communications device.

Equation (5) can be obtained according to formula (1) to formula (4):

Where is the mathematical expectation of ^, ^ is the mathematical expectation of Λ^· / ·, in fact, it can be assumed that it is the second noise figure, which is the noise figure on the receiving side. Since the reference signals of at least four resource elements are obtained, at least two equations can be obtained according to formula (5) to form a binary one-order equations, and the second noise coefficient can be obtained by solving the system of equations, wherein the sum is two The unknown number solved.

Of course, the formulas listed in this embodiment are not the only ones. The same purpose can be achieved by other means. The formulas listed in this embodiment are only a preferred solution, not all.

304. The second communications device acquires a first noise figure.

Specifically, the second communications device receives the second noise coefficient sent by the first communications device, and generates a first noise coefficient according to the second noise coefficient, where the second communications device may also receive the first sending by the other communications device. Two noise figure;

Alternatively, the second communication device directly generates the first noise figure by itself.

Optionally, the first noise figure is a noise coefficient indicating a relationship between the noise power and the channel power, or the first noise figure is a noise coefficient indicating a noise power introduced by the transmitting end. Specifically, the first noise figure may be a rate of change of the noise power received by the first communications device with the channel power, or a ratio of the partial noise power received by the first communications device to the channel power, where the channel power refers to The channel power on one resource element or the average of the channel power on multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end. Specifically, the sending end may be a communications device for sending a received signal of the first communications device, for example, the sending end may be the second communications device.

305. The second communications device encodes the modulation and coding strategy and the first noise coefficient to generate joint coding information. The modulation and coding strategy includes two parameters: a modulation order and a transport block size number. A modulation and coding strategy includes a modulation order and a transport block size number, and a modulation and coding strategy may correspond to a modulation and coding strategy number. The modulation coding strategy is combined with the noise figure, and a noise figure forms a combination with a modulation coding strategy. In all combinations, the combination of a preset number of combinations is selected by simulation or monitoring.

Preferably, when the modulation order and the transmission block size number are large, the first noise coefficient that the received signal can tolerate is small, and at this time, the candidate value of the noise coefficient is less;

When the modulation order and the transmission block size number are small, the first noise coefficient that the received signal can tolerate is large, and the noise coefficient may have more candidate values;

When the modulation order and the transport block size number are less than a certain threshold, the first noise figure has little effect on the system performance, and the noise coefficient takes a preset reserved value or takes the smallest noise coefficient.

Optionally, when the combination mode is selected, all combinations are divided into N sets, where N is an integer greater than 1, and there may be three grouping methods according to the modulation order, the transport block size, or the value range of the modulation and coding strategy:

(1) In the nth set, the candidate modulation order of each combination mode of the nth set belongs to the nth preset modulation order set, and the candidate noise figure of each combination mode of the nth set is the nth preset A candidate value within a range of values, n is an integer from 1 to N.

(2) In the nth set, the candidate transport block size number of each combination manner of the nth set belongs to the nth preset transport block size number set, and the candidate noise figure of each combination mode of the nth set is the nth A candidate value within a predetermined range of values, n being an integer from 1 to N.

(3) In the nth set, the candidate modulation coding strategy of each combination mode of the nth set belongs to the nth preset candidate modulation coding strategy set, and the candidate noise coefficient of each combination mode of the nth set is the nth pre-predetermined Let the candidate values within the range of values, n be an integer from 1 to N. For example, when the combination mode is selected, all combinations are divided into two sets. There are three grouping methods according to the threshold of the modulation order and the threshold of the transport block size:

(1) In the first set, the candidate modulation order of each combination mode of the first set is smaller than the modulation order threshold, and the first noise figure of each combination mode of the first set is within the first preset value range Candidate value; In the second set, the candidate modulation order of each combination mode of the second set is greater than or equal to the modulation order threshold, and the first noise figure of each combination mode of the second set is within the second preset value range. Candidate value.

(2) In the first set, the candidate transport block size number of each combination manner of the first set is smaller than the transport block number threshold, and the first noise coefficient of each combination manner of the first set is the first preset value range Candidate value within

In the second set, the candidate block size number of each combination mode of the second set is greater than or equal to the transport block number threshold, and the first noise figure of each combination mode of the second set is within the second preset value range. Candidate value.

(3) In the first set, the candidate modulation coding strategy number of each combination mode of the first set is smaller than the modulation coding strategy number threshold, and the first noise figure of each combination mode of the first set is the first preset value. Candidate values within the range;

In the second set, the signal modulation coding strategy number of each combination mode of the second set is greater than or equal to the modulation coding policy number threshold, and the transport block size number of each combination mode of the second set is greater than or equal to the transport block number threshold. And the first noise figure of each combination of the second set is a candidate value within a second predetermined range of values.

Referring to the following table, the combination mode number is a number that sorts the preset number of combinations. The modulation coding strategy number is a number that sorts a preset number of modulation and coding strategies, and the candidate value of the first noise coefficient is set to 4, the values are VI, V2, V3, V4, for example, VI, V2, V3, V4 are respectively {8% or invalid value, 3%, 4%, 6%} each modulation coding strategy respectively A combination is formed with each of the candidate values of the first noise figure.

8 8 6 22 VI

9 9 6 23 V I

10 10 6 24 V I

1 1 1 1 6 25 V I

12 12 6 26 V I

13 13 8 26 V2

14 13 8 26 V3

15 13 8 26 V4

16 14 8 27 V2

17 14 8 27 V3

18 14 8 27 V4

19 15 8 28 V2

20 15 8 28 V3

21 15 8 28 V4

22 16 8 29 V2

23 16 8 29 V3

24 17 8 30 V2

25 17 8 30 V3

26 18 8 3 1 V2

27 19 8 32 V2

28 - 2 Reserved state Reserved state

29 - 4

30 - 6

3 1 - 8 When the modulation coding strategy number is less than 13, the corresponding combination mode is the first set. At this time, the first noise coefficient has little influence on the system performance, so the first combination of each combination mode of the first set is selected. The noise figure is the candidate value VI;

When the modulation coding strategy number is greater than 12 and less than 16, the corresponding combination mode is the second set. In this case, the first noise coefficient that the received signal can tolerate is large, so the first combination of each combination mode of the second set is selected. The noise figure is one of the candidate values V2, V3, and V4. When the modulation coding strategy number is 16 or 17, the corresponding combination mode is the third set. At this time, the first noise figure that the received signal can tolerate is moderate. , so selecting a first noise figure for each combination of the third set is one of the candidate values V2 and V3;

When the modulation coding strategy number is 18 or 19, the corresponding combination mode is the fourth set. At this time, the first noise coefficient that the received signal can tolerate is small, so the first combination of the fourth set is selected. A noise figure is the candidate value V2. 306. The second communications device sends the joint encoding information to the first communications device.

307. The second communications device encodes the data according to the joint encoding information and sends the data to the first communications device.

Specifically, the first communications device obtains a noise covariance matrix according to the first noise coefficient, and parses the received data according to the noise covariance matrix. Specifically, the estimated sending signal may be expressed by using a formula (6):

X = H ^H (HH ^H + E; ^l R) ^l Y ( ₆ ) where R = ² m ^H ₊ cT _e ² I , which is the noise power at the signal transmitting end, and the first noise figure can be expressed as /E _s , ie

Optionally, the first noise figure is a first noise figure that is transmitted by the second communications device to the first communications device.

After step 306, the method further includes:

308. The first communications device acquires a channel quality indicator according to the first noise figure, and sends the channel quality indicator to the second communications device.

Specifically, the first communications device obtains a signal to noise ratio according to formula (7), and obtains a channel quality indicator according to a signal to noise ratio:

SNR = —— 1 (7) where is the element of the i-th row of the matrix Q, matrix G^H^^H + E ¹ /)- ¹ ,

R = _e ² HH ^H + ₀ ² I , where is the noise power of the second communication device, σ. ² is the noise power of the first communication device, Α is the average power of the transmitted signal, Η is the channel matrix, and I is the unit matrix.

The first noise figure can be expressed as _e ² / E _s , that is, = ² ><4. Optionally, the first noise figure is a first noise figure transmitted by the second communication device to the first communication device.

Here, the first noise figure used to obtain the channel quality indicator may be different from the first noise figure used to resolve the received data. That is, the first communication device parses the first noise coefficient sent by the second communication device by the received data, but when acquiring the channel quality indicator, the first noise coefficient or the second communication generated by the first communication device may be used. The first noise figure sent by the device.

The signal transmitting and receiving method provided by the embodiment of the present invention sends the joint coding information to the first communication by generating the joint coding information by coding the modulation coding strategy and the first noise coefficient. The device, and encoding the data according to the joint coding information, and transmitting the data to the first communication device reduces dynamic signaling consumed by transmitting the first noise figure.

Another embodiment of the present invention provides a signal receiving method. Referring to FIG. 4, the following steps are included:

401. The first communications device generates a first noise figure.

Optionally, the first noise figure generating method is a method for generating a second noise coefficient in steps 301-303 of the embodiment corresponding to FIG. 3, where the first noise coefficient may be a relationship noise coefficient indicating a noise power and a channel power, or The first noise figure is a noise figure indicating the noise power introduced by the transmitting end. Specifically, the first noise figure may be a rate of change of the noise power received by the first communications device with the channel power, or a ratio of the partial noise power received by the first communications device to the channel power, where the channel power refers to The channel power on one resource element or the average of the channel power on multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end. Specifically, the sending end may be a communications device for sending a received signal of the first communications device, for example, the sending end may be the second communications device.

402. The first communications device parses the received data according to the first noise figure.

The first communication coefficient is generated by the first communication device, and the received data is parsed according to the first noise coefficient, so that the second communication device does not need to consume signaling to notify the first communication device of the first noise coefficient, which further reduces Dynamic signaling consumed by the transmission of the first noise figure.

The signal receiving method provided by the embodiment of the present invention generates a first noise coefficient by the first communication device, and parses the received data according to the first noise coefficient, thereby reducing dynamic signaling consumed by transmitting the first noise coefficient.

On the basis of the foregoing embodiment corresponding to FIG. 4, another embodiment of the present invention provides a specific implementation manner of another method for receiving a signal. Referring to FIG. 5, the following steps are included:

501. The first communications device acquires a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port.

502. The first communications device generates a channel coefficient according to a reference signal of the at least four resource elements.

503. The first communications device generates a second noise according to the reference signal of the at least four resource elements. Coefficient.

504. The first communications device generates a first noise coefficient according to the channel coefficient and the second noise figure.

505. The first communications device acquires a noise covariance matrix according to the first noise coefficient, and parses the received data according to the noise covariance matrix.

For the method of generating the first noise figure, reference may be made to the method for generating the second noise figure in steps 301-303 in the embodiment corresponding to FIG. 3, and details are not described herein again.

Wherein, after step 504, the method further includes:

506. The first communications device acquires a channel quality indicator according to the first noise figure.

507. The first communications device sends a channel quality indicator to the second communications device.

Specifically, for obtaining the channel quality indicator, reference may be made to the method for obtaining the channel quality indicator in step 308 in the embodiment corresponding to FIG. 3.

Here, the noise figure used to obtain the channel quality indicator may be different from the noise figure used to resolve the received data. That is, the first communication device parses the received data with its own generated noise figure, but when acquiring the channel quality indicator, the noise figure generated by the first communication device or the noise coefficient transmitted by the second communication device can be used.

An embodiment of the present invention provides a data feedback method. Referring to FIG. 6, the method includes:

601. The first communications device acquires a channel quality indicator according to a noise figure.

Optionally, the first communications device receives the first noise figure sent by the second communications device, and obtains a channel quality indicator according to the received first noise coefficient;

Or the first communication device generates a second noise coefficient and obtains a channel quality indicator according to the generated second noise coefficient, where the second noise coefficient is generated by the second noise in the step 301 - step 303 of the embodiment corresponding to FIG. The method of generating the coefficient. Optionally, the second noise figure is a noise figure indicating a relationship between the noise power and the channel power, or the second noise figure is a noise coefficient indicating a noise power introduced by the transmitting end. Specifically, the first noise figure The ratio of the noise power received by the first communication device to the channel power, or the ratio of the partial noise power received by the first communication device to the channel power, where the channel power refers to the channel power on a resource element or The average of the channel power over multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end. Specifically, the sending end may be a communications device for sending a received signal of the first communications device, for example, the sending end may be the second communications device.

Specifically, the first communications device acquires a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generates a channel coefficient according to the reference signal of the at least four resource elements, according to the reference of the at least four resource elements. The signal generates a third noise figure, and generates a second noise figure based on the channel coefficient and the third noise figure.

602. The first communications device sends the obtained channel quality indicator to the second communications device. The data feedback method provided by the embodiment of the present invention reduces the influence of the noise figure on the channel quality measurement by the first communication device acquiring the channel quality indicator according to the noise coefficient and transmitting the channel quality indicator to the second communication device.

The embodiment of the present invention provides a first communication device, which is used to implement the signal receiving method implemented by the first communication device in the embodiment corresponding to FIG. 1 and FIG. 3, and the structure of the first communication device 70 is as shown in FIG. The receiving unit 701 and the obtaining unit 702 are included. The first communication device may be a user equipment or a base station.

The receiving unit 701 is configured to receive the joint coding information sent by the second communications device, where the joint encoding information is generated by the second communications device according to the first noise coefficient and the modulation and coding policy, where the modulation and coding policy is used by the first communications device 70. The received data is decoded.

The obtaining unit 702 is configured to obtain a first noise coefficient according to the joint coding information received by the receiving unit 701.

The receiving unit 701 is further configured to parse the received data according to the first noise coefficient acquired by the obtaining unit 702.

The first communication device provided by the embodiment of the present invention, by receiving the joint coding information generated by the first noise coefficient and the modulation and coding strategy jointly coding, parsing the received data according to the first noise coefficient, reducing the consumption of transmitting the first noise coefficient Dynamic signaling. Further, the obtaining unit 702 is further configured to acquire a noise covariance matrix according to the first noise coefficient.

The receiving unit 701 is further configured to parse the received data according to the noise covariance matrix acquired by the obtaining unit 702.

Optionally, the obtaining unit 702 is further configured to: acquire, by using a reference signal of the at least four resource elements, a reference signal of the at least four resource elements, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four resource elements. The reference signal generates a third noise figure, and generates a second noise figure based on the channel coefficient and the third noise figure.

Optionally, the first communication device 70 may further include a sending unit 703.

The sending unit 703 is configured to send the second noise coefficient generated by the obtaining unit 702 to the second communications device.

Optionally, the obtaining unit 702 is further configured to obtain a channel quality indicator according to the first noise coefficient.

The sending unit 703 is configured to send the channel quality indicator acquired by the obtaining unit 702 to the second communications device.

The first communication device provided by the embodiment of the present invention, by receiving the joint coding information generated by the first noise coefficient and the modulation and coding strategy jointly coding, parsing the received data according to the first noise coefficient, reducing the consumption of transmitting the first noise coefficient Dynamic signaling.

The embodiment of the present invention provides a second communication device, which is used to implement the signal transmission method implemented by the second communication device in the embodiment corresponding to FIG. 2 and FIG. 3, and the structure of the second communication device 80 is as shown in FIG. The transmission unit 801, the acquisition unit 802, and the coding unit 803 are included. The second communication device may be a base station or a user equipment.

The obtaining unit 802 is configured to acquire a first noise coefficient.

The coding unit 803 is configured to generate the joint coding information by encoding the modulation coding strategy and the first noise coefficient acquired by the acquisition unit 802.

The sending unit 801 is configured to send the joint encoding information generated by the encoding unit 803 to the first communications device.

The coding unit 803 is further configured to encode the data according to the joint coding information.

The sending unit 801 is further configured to send the data encoded by the encoding unit 803 to the first communication. Equipment.

The second communication device provided by the embodiment of the present invention generates the joint coding information by encoding the modulation coding strategy and the first noise coefficient, and sends the joint coding information to the first communication device, and encodes the data according to the joint coding information. To the first communication device, the dynamic signaling consumed to transmit the first noise figure is reduced.

Further optionally, the encoding unit 803 is further configured to perform coding in a preset number of combinations, where each combination includes a candidate noise coefficient and a candidate modulation coding strategy, and the first noise coefficient is included The coding corresponding to the combination of the modulation and coding strategies is used as the joint coding information.

Optionally, the modulation and coding strategy includes a modulation order and a transport block size number. The preset number of combinations is divided into N sets, where N is an integer greater than 1, and in the nth set, the candidate modulation order of each combination of the nth set belongs to the nth preset modulation order set. And the candidate noise figure for each combination of the nth set is a candidate value within the nth preset value range, and η is an integer from 1 to Ν.

Or,

The preset number of combinations is divided into two sets, where Ν is an integer greater than 1, and in the nth set, the candidate transport block size number of each combination of the nth set belongs to the nth preset transport block size number The set, and the candidate noise figure for each combination of the nth set is a candidate value within the nth preset value range, and η is an integer from 1 to Ν.

Or,

The preset number of combinations is divided into two sets, where Ν is an integer greater than 1, and in the nth set, the candidate modulation coding strategy of each combination of the nth set belongs to the nth preset candidate modulation coding strategy set. And the candidate noise figure for each combination of the nth set is a candidate value within the nth preset value range, and η is an integer from 1 to Ν.

Optionally, the second communication device 80 further includes a receiving unit 804.

The receiving unit 804 is configured to receive a second noise figure sent by the first communications device.

The obtaining unit 802 is further configured to generate a first noise coefficient according to the second noise coefficient received by the receiving unit 804.

Optionally, the receiving unit 804 is configured to receive a channel quality indicator sent by the first communications device. The second communication device provided by the embodiment of the present invention generates the joint coding information by encoding the modulation coding strategy and the first noise coefficient, and sends the joint coding information to the first communication device, and encodes the data according to the joint coding information. To the first communication device, the dynamic signaling consumed to transmit the first noise figure is reduced.

The embodiment of the present invention further provides another first communication device, which is used to implement the signal receiving method implemented by the first communication device in the embodiment corresponding to FIG. 4 and FIG. 5, and the structure of the first communication device 90 is referred to FIG. As shown, the acquisition unit 902 and the receiving unit 901 are included. The first communication device may be a base station or a user equipment.

The obtaining unit 902 is configured to generate a first noise coefficient. The first noise figure is a noise figure that relates the noise power to the channel power, or the first noise figure is a noise figure indicating the noise power introduced by the transmitting end. Specifically, the first noise figure may be a rate of change of the noise power received by the first communications device with the channel power, or a ratio of the partial noise power received by the first communications device to the channel power, where the channel power refers to The channel power on one resource element or the average of the channel power on multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end.

The receiving unit 901 is configured to parse the received data according to the first noise figure generated by the obtaining unit 902.

The first communication device provided by the embodiment of the present invention reduces the dynamic signaling consumed by transmitting the first noise coefficient by generating the first noise coefficient and parsing the received data according to the first noise coefficient.

Further, the obtaining unit 902 is further configured to: acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to at least four The reference signal of the resource element generates a second noise figure, and generates a first noise figure based on the channel coefficient and the second noise figure.

Optionally, the obtaining unit 902 is further configured to acquire a noise covariance matrix according to the first noise coefficient.

The receiving unit 901 is further configured to use the noise covariance matrix acquired by the obtaining unit 902. Parse the received data.

Optionally, the obtaining unit 902 is further configured to obtain a channel quality indicator according to the first noise coefficient.

Optionally, the first communications device 90 further includes a sending unit 903.

The sending unit 903 is configured to send the channel quality indicator acquired by the obtaining unit 902 to the second communications device.

The embodiment of the present invention provides a first communication device, which is used to implement the data feedback method implemented by the first communication device in the embodiment corresponding to FIG. 6. Referring to FIG. 10, the first communication device 100 includes an acquiring unit. 1001 and transmitting unit 1002. The first communication device may be a base station or a user equipment.

The obtaining unit 1001 is configured to obtain a channel quality indicator according to a noise figure. The sending unit 1002 is configured to send the channel quality indicator acquired by the obtaining unit 1001 to the second communications device.

Optionally, the first communications device 100 further includes a receiving unit 1003.

The receiving unit 1003 is configured to receive a first noise coefficient sent by the second communications device.

The obtaining unit 1001 is further configured to acquire a channel quality indicator according to the first noise coefficient received by the receiving unit 1003.

Optionally, the acquiring unit 1001 is further configured to generate a second noise coefficient, and obtain a channel quality indicator according to the generated second noise coefficient, where the second noise coefficient is a relationship noise coefficient indicating a noise power and a channel power, where Or the second noise figure is a noise figure indicating the noise power introduced by the transmitting end. Specifically, the first noise figure may be a rate of change of the noise power received by the first communications device with the channel power, or a ratio of the partial noise power received by the first communications device to the channel power, where the channel power refers to The channel power on one resource element or the average of the channel power on multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end. Specifically, the sending end may be a communication for sending a received signal of the first communications device. The device, for example, the transmitting end may be the second communication device.

Optionally, the obtaining unit 1001 is further configured to: obtain, by using a physical resource block occupied by the reference signal port, a reference signal of the at least four resource elements, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four resource elements. The reference signal generates a third noise figure, and generates a second noise figure based on the channel coefficient and the third noise figure.

The first communication device provided by the embodiment of the present invention obtains the channel quality indicator according to the noise figure and transmits the channel quality indicator to the second communication device, which reduces the influence of the noise figure on the channel quality measurement.

Another embodiment of the present invention provides a first communication device, which is used to implement the data receiving method implemented by the first communication device in the embodiment corresponding to FIG. 1 and FIG. 3. Referring to FIG. 11, the first communication is performed. The device 1101 may be embedded or itself a microprocessor computer, such as a general purpose computer, a custom machine, a mobile phone terminal or a tablet device, and the first communication device 1101 includes: at least one processor 1111, a memory 1112, a bus 1113, and a receiving device. The processor 1114, the at least one processor 1111, the memory 1112 and the receiver 1114 are connected by a bus 1113 and complete communication with each other.

The bus 1113 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus 1113 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 11, but it does not mean that there is only one bus or one type of bus. among them:

Memory 1112 is for storing executable program code, the program code including computer operating instructions. Memory 1112 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.

The processor 1111 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits.

a receiver 1114, configured to receive joint coding information sent by the second communication device, and jointly edit The code information is generated by the second communication device according to the first noise figure and the modulation and coding strategy, wherein the modulation and coding strategy is used by the first communication device 1101 to decode the received data.

The processor 1111 is configured to obtain a first noise coefficient according to the joint coding information received by the receiver 1114, where the first noise coefficient is a relationship noise figure indicating a noise power and a channel power, or the first noise coefficient is an indication sender. The noise figure of the introduced noise power. Specifically, the first noise figure may be a rate of change of the noise power received by the first communications device with the channel power, or a ratio of the partial noise power received by the first communications device to the channel power, where the channel power refers to The channel power on one resource element or the average of the channel power on multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end.

The receiver 1114 is further configured to parse the received data according to the first noise figure acquired by the processor 1111.

Further, the processor 1111 is further configured to obtain a noise covariance matrix according to the first noise coefficient.

The receiver 1114 is further configured to analyze the received data according to the noise covariance matrix acquired by the processor 1111.

Optionally, the processor 1111 is further configured to: acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four resource elements. The reference signal generates a third noise figure, and generates a second noise figure based on the channel coefficient and the third noise figure.

Optionally, the first communication device 1101 further includes a transmitter 1115, and the transmitter 1115 is connected to the processor 1111, the memory 1112, and the receiver 1114 via a bus 1113.

The transmitter 1115 is configured to send the second noise coefficient generated by the processor 1111 to the second communication device.

Optionally, the processor 1111 is further configured to obtain a channel quality indicator according to the first noise coefficient. The transmitter 1115 is configured to send the channel quality indicator acquired by the processor 1111 to the second communications device.

Another embodiment of the present invention provides a second communication device for implementing a signal transmission method implemented by a second communication device in the embodiment corresponding to FIG. 2 and FIG. 3. Referring to FIG. 12, the second communication is performed. The device 1201 may be embedded or itself a microprocessor computer, such as a general purpose computer, a custom machine, a mobile phone terminal, or a tablet device, and the second communication device 1201 includes: at least one processor 1211, a memory 1212, a bus 1213, and a transmission The processor 1214, the at least one processor 1211, the memory 1212 and the transmitter 1214 are connected by a bus 1213 and complete communication with each other.

The bus 1213 may be an IS A (Industry Standard Architecture) bus, a PCK Peripheral Component (External Device Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus 1213 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 12, but it does not mean that there is only one bus or one type of bus. among them:

Memory 1212 is for storing executable program code, the program code including computer operating instructions. Memory 1212 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.

The processor 1211 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits.

The processor 1211 is configured to obtain a first noise coefficient, and encode the modulation and coding strategy and the acquired first noise coefficient to generate joint coding information, where the first noise coefficient is a relationship noise coefficient indicating a noise power and a channel power, or The first noise figure is a noise figure indicating the noise power introduced by the transmitting end. Specifically, the first noise figure may be received by the first communications device. The ratio of the noise power to the channel power, or the ratio of the partial noise power received by the first communication device to the channel power, where the channel power refers to the channel power on one resource element or the channel power on multiple resource elements. average value. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal, such as the first noise figure may be the transmitting end.

EVM. Specifically, the sending end may be a communications device for sending a received signal of the first communications device, for example, the sending end may be the second communications device.

The transmitter 1214 is configured to send the joint coding information generated by the processor 1211 to the first communication device.

The processor 1211 is further configured to encode the data according to the joint coding information.

The transmitter 1214 is further configured to send the data encoded by the processor 1211 to the first communication device.

Further, the processor 1211 is further configured to encode a preset number of combinations, where each combination includes a candidate noise coefficient and a candidate modulation and coding strategy, and the first noise coefficient and the modulation are included. The coding corresponding to the combination of coding strategies is used as joint coding information.

Optionally, the modulation and coding strategy includes a modulation order and a transport block size number.

The preset number of combinations is divided into N sets, where N is an integer greater than 1, and in the nth set, the candidate modulation order of each combination of the nth set belongs to the nth preset modulation order set. And the candidate noise figure for each combination of the nth set is a candidate value within the nth preset value range, and η is an integer from 1 to Ν.

Or,

The preset number of combinations is divided into two sets, where Ν is an integer greater than 1, and in the nth set, the candidate transport block size number of each combination of the nth set belongs to the nth preset transport block size number The set, and the candidate noise figure for each combination of the nth set is a candidate value within the nth preset value range, and η is an integer from 1 to Ν. or,

The preset number of combinations is divided into N sets, where N is an integer greater than 1. In the nth set, the candidate modulation coding strategy of each combination of the nth set belongs to the nth preset candidate modulation coding policy set. And the candidate noise figure for each combination of the nth set is a candidate value within the nth preset value range, and n is an integer from 1 to N.

Optionally, the second communication device 1201 further includes a receiver 1215. The receiver 1215 is connected to the processor 1211, the memory 1212, and the transmitter 1214 via a bus 1213.

The receiver 1215 is configured to receive a third noise figure sent by the first communications device.

The processor 1211 is further configured to generate a first noise coefficient according to the third noise coefficient received by the receiver 1215.

Optionally, the receiver 1215 is configured to receive a channel quality indicator sent by the first communications device.

Another embodiment of the present invention provides another first communication device, which is used to implement the signal receiving method implemented by the first communication device in the embodiment corresponding to FIG. 4 and FIG. 5. Referring to FIG. 13, the first The communication device 1301 may be embedded or itself a microprocessor computer, such as a general-purpose computer, a custom machine, a mobile phone terminal, or a tablet device. The first communication device 1301 includes: at least one processor 1311, a memory 1312, a bus 1313, and The receiver 1314, the at least one processor 1311, the memory 1312, and the receiver 1314 are connected by a bus 1313 and complete communication with each other.

The bus 1313 may be an IS A (Industry Standard Architecture) bus, a PCK Peripheral Component (External Device Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus 1313 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 13, but it does not mean that there is only one bus or one type of bus. among them: The memory 1312 is for storing executable program code, the program code including computer operating instructions. The memory 1312 may include a high speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory.

The processor 1311 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits.

The processor 1311 is configured to generate a first noise figure, where the first noise figure is a noise figure that indicates a relationship between the noise power and the channel power, or the first noise figure is a noise figure indicating a noise power introduced by the transmitting end. Specifically, the first noise figure may be a rate of change of the noise power received by the first communications device with the channel power, or a ratio of the partial noise power received by the first communications device to the channel power, where the channel power refers to The channel power on one resource element or the average of the channel power on multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end. Specifically, the sending end may be a communications device for sending a receiving signal of the first communications device, for example, the sending end may be the second communications device.

The receiver 1314 is configured to parse the received data according to the first noise figure generated by the processor 1311.

Further, the processor 1311 is further configured to: acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to at least four The reference signal of the resource element generates a second noise figure, and generates a first noise figure based on the channel coefficient and the second noise figure.

Optionally, the processor 1311 is further configured to obtain a noise covariance matrix according to the first noise coefficient.

The receiver 1314 is further configured to parse the received data according to the noise covariance matrix acquired by the processor 1311. Optionally, the processor 1311 is further configured to acquire a channel quality indicator according to the first noise coefficient.

Optionally, the first communication device 1301 further includes a transmitter 1315, and the transmitter 1315 is connected to the processor 1311, the memory 1312, and the receiver 1314 via a bus 1313.

The transmitter 1315 is configured to send the channel quality indicator acquired by the processor 1311 to the second communication device.

Another embodiment of the present invention provides a first communication device, which is used in the data feedback method implemented by the first communication device in the corresponding embodiment of FIG. 6. Referring to FIG. 14, the device may be embedded or itself Processing a computer, such as a general-purpose computer, a custom machine, a mobile phone terminal, or a tablet device, the first communication device 1401 includes: at least one processor 1411, a memory 1412, a bus 1413, and a transmitter 1414, the processor 1411 The memory 1412 and the transmitter 1414 are connected by a bus 1413 and complete communication with each other.

The bus 1413 may be an IS A (Industry Standard Architecture) bus, a PCK Peripheral Component (External Device Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus 1413 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 14, but it does not mean that there is only one bus or one type of bus. among them:

Memory 1412 is for storing executable program code, the program code including computer operating instructions. Memory 1412 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.

The processor 1411 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits.

The processor 1411 is configured to obtain a channel quality indicator according to a noise figure. The transmitter 1414 is configured to send the channel quality indicator acquired by the processor 1411 to the second communication device.

Optionally, the first communication device further includes a receiver 1415, and the receiver 1415 is connected to the processor 1411, the memory 1412, and the transmitter 1414 via a bus 1413.

Specifically, the receiver 1415 is configured to receive a first noise coefficient sent by the second communications device.

The processor 1411 is further configured to obtain a channel quality indicator according to the first noise coefficient received by the receiver 1415.

Optionally, the processor 1411 is further configured to generate a second noise coefficient, and obtain a channel quality indicator according to the generated second noise coefficient, where the second noise coefficient is a relationship noise coefficient indicating a noise power and a channel power, where Or the second noise figure is a noise figure indicating the noise power introduced by the transmitting end. Specifically, the first noise figure may be a rate of change of the noise power received by the first communications device with the channel power, or a ratio of the partial noise power received by the first communications device to the channel power, where the channel power refers to The channel power on one resource element or the average of the channel power on multiple resource elements. The first noise figure may also be a ratio of the noise power introduced by the transmitting end to the power of the transmitted signal. For example, the first noise figure may be the EVM of the transmitting end. Specifically, the sending end may be a communications device for sending a received signal of the first communications device, for example, the sending end may be the second communications device.

Optionally, the processor 1411 is further configured to: acquire a reference signal of at least four resource elements in a physical resource block occupied by the reference signal port, and generate a channel coefficient according to the reference signal of the at least four resource elements, according to the at least four resource elements. The reference signal generates a third noise figure, and generates a second noise figure based on the channel coefficient and the third noise figure.

The embodiment of the present invention provides a wireless network system. Referring to the corresponding embodiment of FIG. 3, referring to FIG. 15, the wireless network system 1501 includes at least one first communication device 1511. The first communication device may be a base station or a user equipment.

The first communication device 1511 is the first communication described in any of the embodiments corresponding to FIG. 7. Equipment

Alternatively, the first communication device 1511 is the first communication device described in any of the embodiments corresponding to FIG.

Optionally, the wireless network system 1501 can also include at least one second communication device 1512. The second communication device may be a base station or a user equipment.

The first communication device 1511 is the first communication device according to any one of the embodiments of FIG. 7, and the second communication device 1512 is the second communication device according to any embodiment corresponding to FIG. 8.

Alternatively, when the first communication device 1511 is the first communication device in any of the embodiments corresponding to FIG. 11, the second communication device 1512 is the second communication device in any of the embodiments corresponding to FIG.

The wireless network system provided by the embodiment of the present invention generates a joint coding information by coding a modulation coding strategy and a first noise coefficient by using a second communication device, and sends the joint coding information to the first communication device, and performs data according to the joint coding information. The encoding is sent to the first communication device, reducing the dynamic signaling consumed by transmitting the first noise figure.

An embodiment of the present invention provides another wireless network system. Referring to the corresponding embodiment of FIG. 5, referring to FIG. 16, the wireless network system 1601 includes at least one first communication device 1611 and a second communication device 1612. The first communication device may be a base station or a user equipment, and the second communication device may be a base station or a user equipment.

The first communication device 1611 is the first communication device described in any of the embodiments corresponding to FIG. 9;

Alternatively, the first communication device 1611 is the first communication device described in any of the embodiments corresponding to FIG.

The wireless network system provided by the embodiment of the present invention generates a first noise figure by the first communication device, and parses the received data according to the first noise coefficient, thereby reducing dynamic signaling consumed by transmitting the first noise coefficient.

Another embodiment of the present invention provides a wireless network system. Referring to the corresponding embodiment of FIG. 6, referring to FIG. 17, the wireless network system 1701 includes at least one first communication device 1711 and a second communication device 1712. The first communication device may be a base station or a user equipment. The second communication device may be a base station or a user equipment.

The first communication device 1711 is the first communication device described in any of the embodiments corresponding to FIG. 10;

Alternatively, the first communication device 1711 is the first communication device described in any of the embodiments corresponding to FIG.

The wireless network system provided by the embodiment of the present invention reduces the influence of the noise figure on the channel quality measurement by the first communication device acquiring the channel quality indicator according to the noise coefficient and transmitting the channel quality indicator to the second communication device.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Through the description of the above embodiments, it will be apparent to those skilled in the art that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. For example, but not limited to: the computer readable medium may include RAM (Random Access Memory), ROM (Read Only Memory), and EEPROM (Electrically Erasable Programmable Read Only Memory). Read memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, disk storage media or other magnetic storage device, or can be used to carry or store desired programs in the form of instructions or data structures. Code and any other medium that can be accessed by a computer. Also. Any connection may suitably be a computer readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, DSL (Digital Subscriber Line), or wireless technologies such as infrared, radio, and microwave, Then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the media In the shadow. As used in the present invention, the disc and the disc include a CD (Compact Disc), a laser disc, a disc, a DVD disc (Digital Versatile Disc), a floppy disc, and a Blu-ray disc, wherein the disc is usually magnetically copied, The disc uses a laser to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

Claims

claims

1. A signal receiving method, characterized by including:

The first communication device receives the joint coding information sent by the second communication device. The joint coding information is generated by the second communication device according to the first noise coefficient and the modulation and coding strategy, wherein the modulation and coding strategy is used for the first communication device. The communication device decodes the received data;

The first communication device obtains the first noise coefficient according to the joint coding information, and analyzes the received data according to the first noise coefficient.

2. The method according to claim 1, characterized in that,

The first noise coefficient is a noise coefficient indicating the relationship between noise power and channel power, or the first noise coefficient is a noise coefficient indicating the noise power introduced by the transmitting end.

3. The method according to claim 1 or 2, characterized in that the analysis of the received data according to the first noise coefficient specifically includes:

The first communication device obtains a noise covariance matrix according to the first noise coefficient, and analyzes the received data according to the noise covariance matrix.

4. The method according to any one of claims 1-3, characterized in that the method further includes:

The first communication device obtains reference signals of at least four resource elements in the physical resource block occupied by the reference signal port;

The first communication device generates channel coefficients based on reference signals of the at least four resource elements;

The first communication device generates a third noise coefficient based on the reference signal of the at least four resource elements;

The first communication device generates a second noise coefficient based on the channel coefficient and the third noise coefficient;

The first communications device sends the second noise figure to the second communications device.

5. The method according to any one of claims 1-3, characterized in that the method further includes:

The first communication device obtains a channel quality indicator CQI according to the first noise figure; and the first communication device sends the channel quality indicator to the second communication device.

6. A signal sending method, characterized by including:

The second communication device obtains the first noise coefficient;

The second communication device generates joint coding information using the modulation coding strategy and the first noise figure coding;

The second communication device sends the joint encoding information to the first communication device; the second communication device encodes data according to the joint encoding information and sends it to the first communication device.

7. The method according to claim 6, characterized in that,

8. The method according to claim 6 or 7, characterized in that the second communication device generates joint coding information with the modulation coding strategy and the first noise coefficient coding, including: the second communication device combines the predetermined Let a number of combinations be used for coding, where each combination includes a candidate noise coefficient and a candidate modulation coding strategy;

The second communication device uses the coding corresponding to the combination of the first noise coefficient and the modulation and coding strategy as the joint coding information.

9. The method according to claim 8, characterized in that,

The candidate modulation coding strategy at least includes candidate modulation orders;

The preset number of combinations are divided into N sets, where N is an integer greater than 1. In the nth set, the candidate modulation order of each combination of the nth set belongs to the nth preset modulation. order set, and the candidate noise coefficient of each combination of the nth set is a candidate value within the nth preset value range, n is an integer from 1 to N.

10. The method according to claim 8, characterized in that,

The candidate modulation and coding strategy at least includes a candidate transport block size number;

The preset number of combinations are divided into N sets, where N is an integer greater than 1. In the nth set, the candidate transport block size number of each combination of the nth set belongs to the nth preset There is a set of transmission block size numbers, and the candidate noise coefficient of each combination of the nth set is a candidate value within the nth preset value range, where n is an integer from 1 to N.

11. The method according to claim 8, characterized in that, The preset number of combinations are divided into N sets, where N is an integer greater than 1. In the nth set, the candidate modulation coding strategy of each combination of the nth set belongs to the nth preset candidate. A set of modulation coding strategies, and the candidate noise coefficient of each combination of the nth set is a candidate value within the nth preset value range, n is an integer from 1 to N.

12. The method according to any one of claims 6 to 11, characterized in that the second communication device obtains the first noise coefficient, including:

The second communication device receives the second noise coefficient sent by the first communication device; and the second communication device generates the first noise coefficient according to the second noise coefficient.

13. The method according to any one of claims 6 to 11, characterized in that, after the second communication device sends the joint encoding information to the first communication device, it further includes:

The second communication device receives the channel quality indicator sent by the first communication device.

14. A signal receiving method, characterized by including:

The first communication device generates a first noise coefficient, the first noise coefficient is a noise coefficient indicating the relationship between noise power and channel power, or the first noise coefficient is a noise coefficient indicating the noise power introduced by the transmitting end;

The first communications device parses received data based on the first noise figure.

15. The method according to claim 14, wherein the first communication device generating a noise coefficient includes:

The first communication device generates a second noise coefficient based on the reference signal of the at least four resource elements;

The first communication device generates the first noise coefficient based on the channel coefficient and the second noise coefficient.

16. The method according to claim 14 or 15, characterized in that the first communication device parses the received data according to the first noise coefficient, including:

The first communication device obtains a noise covariance matrix according to the first noise coefficient, and uses The received data is parsed according to the noise covariance matrix.

17. The method according to any one of claims 14 to 16, characterized in that, after the first communication device generates the first noise coefficient, it further includes:

The first communication device obtains a channel quality indicator according to the first noise figure; and the first communication device sends the channel quality indicator to a second communication device.

18. A data feedback method, characterized by including:

The first communication device obtains the channel quality indicator according to the noise figure;

The first communication device sends the acquired channel quality indicator to the second communication device.

19. The method according to claim 18, characterized in that the first communication device obtains the channel quality indicator according to the noise coefficient, including:

The first communication device receives a first noise coefficient sent by the second communication device; and the first communication device obtains a channel quality indicator based on the received first noise coefficient.

20. The method according to claim 18 or 19, characterized in that the first communication device obtains the channel quality indicator according to the noise coefficient, including:

The first communication device generates a second noise coefficient, the second noise coefficient is a noise coefficient indicating the relationship between noise power and channel power, or the second noise coefficient is a noise coefficient indicating the noise power introduced by the transmitting end;

The first communication device obtains a channel quality indication based on the generated second noise coefficient.

21. The method according to claim 20, wherein the first communication device generating the second noise coefficient includes:

The first communication device generates a third noise coefficient based on the reference signal of the at least four resource elements; The first communication device generates the second noise coefficient based on the channel coefficient and the third noise coefficient.

22. A first communication device, characterized in that it includes:

A receiving unit configured to receive joint coding information sent by a second communication device, where the joint coding information is generated by the second communication device according to a first noise coefficient and a modulation and coding strategy, wherein the modulation and coding strategy is used for the third communication device. A communication device decodes the received data;

An acquisition unit, configured to acquire the first noise coefficient according to the joint coding information received by the receiving unit;

The receiving unit is also configured to analyze the received data according to the first noise coefficient obtained by the obtaining unit.

23. The device according to claim 22, characterized in that it includes:

24. The device according to claim 22 or 23, characterized by comprising: the obtaining unit, further specifically configured to obtain a noise covariance matrix according to the first noise coefficient;

The receiving unit is also specifically configured to parse the received data according to the noise covariance matrix obtained by the obtaining unit.

25. The device according to any one of claims 22-24, characterized in that,

The acquisition unit is further configured to acquire reference signals of at least four resource elements in the physical resource block occupied by the reference signal port, generate channel coefficients according to the reference signals of the at least four resource elements, and generate channel coefficients according to the at least four resources. The reference signal of the element generates a third noise coefficient, and generates a second noise coefficient according to the channel coefficient and the third noise coefficient;

The first communication device also includes a sending unit;

The sending unit is configured to send the second noise coefficient generated by the obtaining unit to the second communication device.

26. The device according to any one of claims 22-24, characterized in that,

The obtaining unit is further configured to obtain a channel quality indicator according to the first noise coefficient; the first communication device further includes a sending unit; The sending unit is configured to send the channel quality indicator obtained by the obtaining unit to the second communication device.

27. A second communication device, characterized by: including:

An acquisition unit, used to acquire the first noise coefficient; coefficient coding generates joint coding information; communication equipment;

The encoding unit is also used to encode data according to the joint encoding information; communication device.

28. The device according to claim 27, characterized in that,

29. The device according to claim 27 or 28, characterized in that it includes: the encoding unit, which is also specifically configured to encode a preset number of combinations, wherein each combination includes a candidate noise coefficient and A candidate modulation and coding strategy, and the coding corresponding to the combination of the first noise coefficient and the modulation and coding strategy is used as the joint coding information.

30. The device according to claim 29, characterized in that it includes:

The modulation coding strategy at least includes candidate modulation orders;

31. The device according to claim 29, characterized in that it includes:

The modulation and coding strategy at least includes a candidate transport block size number;

The preset number of combinations are divided into N sets, where N is an integer greater than 1. In the nth set, the candidate transport block size number of each combination of the nth set is It belongs to the nth preset transport block size number set, and the candidate noise coefficient of each combination of the nth set is a candidate value within the nth preset value range, n is an integer from 1 to N.

32. The device according to claim 29, characterized in that it includes:

The preset number of combinations are divided into N sets, where N is an integer greater than 1. In the nth set, the candidate modulation coding strategy of each combination of the nth set belongs to the nth preset candidate. A set of modulation coding strategies, and the candidate noise coefficient of each combination of the nth set is a candidate value within the nth preset value range, where n is an integer from 1 to N.

33. The device according to any one of claims 27-32, characterized in that the second communication device further includes a receiving unit;

The receiving unit is configured to receive the second noise coefficient sent by the first communication device; the obtaining unit is further configured to generate the first noise coefficient according to the second noise coefficient received by the receiving unit.

34. The device according to any one of claims 27-32, characterized in that the first communication device further includes a receiving unit;

The receiving unit is configured to receive the channel quality indicator sent by the first communication device.

35. A first communication device, characterized in that it includes:

An acquisition unit, configured to generate a first noise coefficient, where the first noise coefficient is a noise coefficient indicating the relationship between noise power and channel power, or the first noise coefficient is a noise coefficient indicating the noise power introduced by the transmitting end;

A receiving unit, configured to parse the received data according to the first noise coefficient generated by the acquisition unit.

36. The device according to claim 35, characterized in that it includes:

The acquisition unit is also specifically configured to acquire reference signals of at least four resource elements in the physical resource block occupied by the reference signal port, generate channel coefficients based on the reference signals of the at least four resource elements, and generate channel coefficients based on the reference signals of the at least four resource elements. The reference signal of the resource element generates a second noise coefficient, and the first noise coefficient is generated according to the channel coefficient and the second noise coefficient.

37. The device according to claim 35 or 36, characterized in that it includes: the obtaining unit, further specifically configured to obtain a noise covariance matrix according to the first noise coefficient, The receiving unit is also specifically configured to analyze the received data according to the noise covariance matrix obtained by the obtaining unit.

38. The device according to any one of claims 35-37, characterized in that,

The obtaining unit is further configured to obtain a channel quality indicator according to the first noise coefficient; the first communication device further includes a sending unit;

The sending unit is configured to send the channel quality indicator obtained by the obtaining unit to a second communication device.

39. A first communication device, characterized in that it includes:

An acquisition unit, used to acquire the channel quality indicator according to the noise coefficient;

A sending unit, configured to send the channel quality indicator acquired by the acquiring unit to a second communication device.

40. The device according to claim 39, characterized in that the first communication device further includes a receiving unit,

The receiving unit is configured to receive the first noise coefficient sent by the second communication device; the obtaining unit is further specifically configured to obtain a channel quality indicator according to the first noise coefficient received by the receiving unit.

41. The device according to claim 39 or 40, characterized in that it includes: the acquisition unit, further specifically configured to generate a second noise coefficient, and obtain a channel quality indicator according to the generated second noise coefficient, Wherein, the second noise coefficient is a noise coefficient indicating the relationship between noise power and channel power, or the second noise coefficient is a noise coefficient indicating the noise power introduced by the transmitting end.

42. The device according to claim 41, characterized in that it includes:

The acquisition unit is further configured to acquire reference signals of at least four resource elements in the physical resource block occupied by the reference signal port, generate channel coefficients according to the reference signals of the at least four resource elements, and generate channel coefficients according to the at least four resources. A reference signal of the element generates a third noise coefficient, and the second noise coefficient is generated based on the channel coefficient and the third noise coefficient.

43. A first communication device, characterized in that it includes a processor, a bus, a memory, and a receiver, and the processor, the memory, and the receiver are connected to each other through the bus; wherein, the receiver , used to receive the joint coding information sent by the second communication device, so The joint coding information is generated by the second communication device according to the first noise coefficient and the modulation and coding strategy, wherein the modulation and coding strategy is used by the first communication device to decode the received data; the processor, for Obtain the first noise coefficient according to the joint coding information received by the receiver;

The receiver is further configured to parse the received data according to the first noise coefficient obtained by the processor.

44. The device according to claim 43, characterized in that,

45. The device according to claim 43 or 44, characterized in that,

The processor is also specifically configured to obtain a noise covariance matrix according to the first noise coefficient;

The receiver is also specifically configured to parse the received data according to the noise covariance matrix obtained by the processor.

46. The device according to any one of claims 43-45, characterized in that,

The processor is further configured to obtain reference signals of at least four resource elements in the physical resource block occupied by the reference signal port, generate channel coefficients based on the reference signals of the at least four resource elements, and generate channel coefficients based on the at least four resources. The reference signal of the element generates a third noise coefficient, and generates a second noise coefficient according to the channel coefficient and the third noise coefficient;

The first communication device further includes a transmitter, the transmitter is connected to the processor, the memory and the receiver through a bus;

The transmitter is configured to send the second noise coefficient generated by the processor to the second communication device.

47. The device according to any one of claims 43 to 45, characterized by comprising: the processor, further configured to obtain a channel quality indicator according to the first noise coefficient; the first communication device is further It includes a transmitter, the transmitter is connected to the processor, the memory and the receiver through a bus;

The transmitter is configured to send the channel quality indicator obtained by the processor to the second communication device.

48. A second communication device, characterized in that it includes a processor, a memory, a bus and a transmitter, and the processor, the memory and the transmitter are connected to each other through the bus; wherein, the processor , used to obtain the first noise coefficient, and generate joint coding information by encoding the modulation coding strategy and the obtained first noise coefficient;

The transmitter is used to send the joint encoding information generated by the processor to the first communication device;

The processor is further configured to encode data according to the joint encoding information; the transmitter is further configured to send the data encoded by the processor to the first communication device.

49. The device according to claim 48, characterized in that,

50. The device according to claim 48 or 49, characterized in that,

The processor is also specifically configured to encode a preset number of combinations, where each combination includes a candidate noise coefficient and a candidate modulation coding strategy, and will include the encoded information.

51. The device according to claim 50, characterized in that it includes:

The modulation coding strategy at least includes candidate modulation orders;

52. The device according to claim 50, characterized in that it includes:

53. The device according to claim 50, characterized in that it includes:

The preset number of combinations are divided into N sets, where N is an integer greater than 1. In the nth set, the candidate modulation and coding strategy of each combination of the nth set belongs to the nth preset candidate. A set of modulation coding strategies, and the candidate noise coefficient of each combination of the nth set is a candidate value within the nth preset value range, n is an integer from 1 to N.

54. The device according to claim 48 or 53, characterized in that the second communication device further includes a receiver, the receiver is connected to the processor, the memory and the transmitter through a bus. ;

The receiver is configured to receive the third noise coefficient sent by the first communication device; the processor is further configured to generate the first noise coefficient according to the third noise coefficient received by the receiver.

55. The device according to any one of claims 48 to 53, characterized in that the second communication device further includes a receiver, and the receiver communicates with the processor, the memory and the transmitter through a bus. devices are connected to each other;

The receiver is configured to receive a channel quality indicator sent by the first communication device.

56. A first communication device, characterized in that it includes a processor, a memory, a bus and a receiver, and the processor, the memory and the receiver are connected to each other through the bus; the processor, with For generating a first noise coefficient, the first noise coefficient is a noise coefficient indicating the relationship between noise power and channel power, or the first noise coefficient is a noise coefficient indicating the noise power introduced by the transmitting end;

The receiver is configured to parse the received data according to the first noise figure generated by the processor.

57. The device according to claim 56, characterized in that it includes:

The processor is further specifically configured to obtain reference signals of at least four resource elements in the physical resource block occupied by the reference signal port, generate channel coefficients based on the reference signals of the at least four resource elements, and generate channel coefficients based on the reference signals of the at least four resource elements. The reference signal of the resource element generates a second noise coefficient, and the first noise coefficient is generated according to the channel coefficient and the second noise coefficient.

58. The device according to claim 56 or 57, characterized by comprising: the processor, further specifically configured to obtain the noise covariance moment according to the first noise coefficient array,

59. The device according to any one of claims 56-58, characterized in that,

The processor is further configured to obtain a channel quality indicator according to the first noise figure; the first communication device further includes a transmitter, the transmitter communicates with the processor, the memory and the Receivers are connected to each other;

The transmitter is configured to send the channel quality indicator obtained by the processor to a second communication device.

60. A first communication device, characterized in that it includes a processor, a memory, a bus and a transmitter, and the processor, the memory and the transmitter are connected to each other through the bus: the processor, with To obtain the channel quality indicator based on the noise figure;

61. The device according to claim 60, characterized in that: the first communication device further includes a receiver, the receiver is connected to the processor, the memory and the transmitter through the bus,

The receiver is configured to receive the first noise coefficient sent by the second communication device; the processor is further specifically configured to obtain a channel quality indicator according to the first noise coefficient received by the receiver.

62. The device according to claim 60 or 61, characterized by comprising: the processor, further specifically configured to generate a second noise coefficient, and obtain a channel quality indicator according to the generated second noise coefficient, Wherein, the second noise coefficient is a noise coefficient indicating the relationship between noise power and channel power, or the second noise coefficient is a noise coefficient indicating the noise power introduced by the transmitting end.

63. The device according to claim 62, characterized in that it includes:

The processor is further configured to obtain reference signals of at least four resource elements in the physical resource block occupied by the reference signal port, generate channel coefficients based on the reference signals of the at least four resource elements, and generate channel coefficients based on the at least four resources. element's reference signal generates a third noise figure, based on the The channel coefficient and the third noise coefficient generate the second noise coefficient.

64. A wireless network system, characterized in that it includes: at least one first communication device; wherein the first communication device is the first communication device according to any one of claims 22-26;

Alternatively, the first communication device is the first communication device according to any one of claims 43-47.

65. The system according to claim 64, wherein the wireless network system further includes at least one second communication device;

Wherein, when the first communication device is the first communication device according to any one of claims 22-26, the second communication device is the second communication device according to any one of claims 27-34; Or, when the first communication device is the first communication device according to any one of claims 43-47, the second communication device is the second communication device according to any one of claims 48-55.

66. A wireless network system, including at least one first communication device and a second communication device, characterized in that,

The first communication device is the first communication device according to any one of claims 35-38; or, the first communication device is the first communication device according to any one of claims 56-59.

67. A wireless network system, including at least one first communication device and a second communication device, characterized in that,

The first communication device is the first communication device according to any one of claims 39-42; or, the first communication device is the first communication device according to any one of claims 60-63.