CN107710853B - Method and device for transmitting information - Google Patents

Abstract

The invention discloses a method and a device for transmitting information, wherein the method comprises the following steps: the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to the time frequency resource and the code domain resource used by the terminal equipment during uplink transmission; and sending indication information aiming at the feedback result of the uplink transmission to the terminal equipment through the feedback time-frequency resource. By enabling the network equipment to determine the feedback time-frequency resource used for bearing the indication information of the feedback result of the uplink transmission from the downlink time-frequency resource based on the time-frequency resource and the code domain resource used by the terminal equipment during the uplink transmission, and performing feedback aiming at the uplink transmission on the feedback time-frequency resource, the feedback aiming at the uplink transmission can be realized without resource scheduling.

Description

Method and device for transmitting information

This application claims priority from PCT patent application No. PCT/CN2015/082906 entitled "method and apparatus for transmitting information", filed by chinese patent office on 30/06/2015, the entire contents of which are incorporated by reference in this application.

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for transmitting information.

Background

At present, a retransmission technique is known, in which a receiver may Request a sender to retransmit data according to a decoding failure, for example, in a Hybrid Automatic Repeat Request (HARQ) technique, when a receiver succeeds in decoding, Acknowledgement (ACK) information may be fed back to the sender, and when the decoding fails, acknowledgement (NACK) information may be fed back to the sender, so that the sender may retransmit data according to a feedback result from the receiver, thereby improving transmission reliability.

In addition, in the existing retransmission technology, the network device needs to notify the terminal device of the time-frequency resource for carrying the feedback result for uplink transmission in a resource scheduling manner, so that the terminal device can accurately obtain the feedback result corresponding to the terminal device.

However, resource scheduling needs to occupy a large amount of system resources, which seriously affects system throughput and transmission performance, and therefore, it is desirable to provide a technique for implementing feedback for uplink transmission without resource scheduling.

Disclosure of Invention

Embodiments of the present invention provide a method for transmitting information, which can implement feedback for uplink transmission without resource scheduling.

In a first aspect, a method for transmitting information is provided, the method including: the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to the time frequency resource and the code domain resource used by the terminal equipment during uplink transmission; and sending indication information aiming at the feedback result of the uplink transmission to the terminal equipment through the feedback time-frequency resource.

With reference to the first aspect, in a first implementation manner of the first aspect, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates in advance to the network device and informs the terminal device of a plurality of transmission resources, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the plurality of transmission resources allocated in advance by the network device, and the selected transmission resource is used to transmit uplink data.

With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, the determining, by the network device, a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource and a code domain resource used by the terminal device during uplink transmission includes: and the network equipment determines the feedback time frequency resource corresponding to the terminal equipment from the authorization-free feedback area according to the time frequency resource and the code domain resource used by the terminal equipment during uplink transmission.

With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device during uplink transmission includes: and the network equipment determines the feedback time-frequency resource corresponding to the terminal equipment according to the time-frequency resource and the code domain resource used by the data part when the terminal equipment carries out uplink transmission.

With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device during uplink transmission includes: and the network equipment determines the feedback time frequency resource corresponding to the terminal equipment according to the index of the time frequency resource and the index of the code domain resource used by the terminal equipment during uplink transmission.

With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device during uplink transmission includes: the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set and a code domain resource to which the time frequency resource used by the terminal equipment during uplink transmission belongs, wherein the time frequency resource set comprises at least one time frequency resource.

With reference to the first aspect and the foregoing implementation manner, in a seventh implementation manner of the first aspect, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device during uplink transmission includes: the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a code domain resource set and a time frequency resource to which the code domain resource used by the terminal equipment during uplink transmission belongs, wherein the code domain resource set comprises at least one code domain resource.

With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device during uplink transmission includes: the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set to which a time frequency resource used by the terminal equipment during uplink transmission belongs and a code domain resource set to which a code domain resource belongs, wherein the time frequency resource set comprises at least one time frequency resource, and the code domain resource set comprises at least one code domain resource.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in a ninth implementation manner of the first aspect, the code domain resource includes a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in a tenth implementation manner of the first aspect, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, and the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the first aspect and the foregoing implementation manner, in an eleventh implementation manner of the first aspect, the LDS sequence is a multidimensional complex vector, where the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used to adjust amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

With reference to the first aspect and the foregoing implementation manner, in a twelfth implementation manner of the first aspect, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK or indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in a thirteenth implementation manner of the first aspect, the symbol sequences in the symbol sequence set have a one-to-one correspondence with the pilots, and the method further includes: and determining a symbol sequence corresponding to the terminal equipment according to the pilot frequency used by the terminal equipment during uplink transmission.

With reference to the first aspect and the foregoing implementations of the first aspect, in a fourteenth implementation of the first aspect, the symbol sequence includes a walsh wash sequence or a goodney Golden sequence.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in a fifteenth implementation manner of the first aspect, the indication information of the uplink transmission feedback result includes location information of a downlink time-frequency resource that carries a relevant identifier of the terminal device.

With reference to the first aspect and the foregoing implementation manner, in a sixteenth implementation manner of the first aspect, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in a seventeenth implementation manner of the first aspect, the network device is a base station, and the terminal device is a user equipment.

In a second aspect, a method of transmitting information is provided, the method comprising: the terminal equipment determines a feedback time-frequency resource corresponding to the terminal equipment according to the time-frequency resource and the code domain resource used in uplink transmission; and receiving the indication information of the feedback result aiming at the uplink transmission through the feedback time-frequency resource.

With reference to the second aspect, in a first implementation manner of the second aspect, the uplink transmission is an unlicensed transmission, and the unlicensed transmission pre-allocates and informs the network device of multiple transmission resources, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources pre-allocated by the network device, and the selected transmission resource is used to transmit uplink data.

With reference to the second aspect and the foregoing implementation manner, in a second implementation manner of the second aspect, the determining, by the terminal device, a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource and a code domain resource used in uplink transmission includes: and the terminal equipment determines the feedback time frequency resource corresponding to the terminal equipment from the authorization-free feedback area according to the time frequency resource and the code domain resource used in the uplink transmission.

With reference to the second aspect and the foregoing implementation manner, in a third implementation manner of the second aspect, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in uplink transmission includes: and the terminal equipment determines the feedback time frequency resource corresponding to the terminal equipment according to the time frequency resource and the code domain resource used by the data part during the uplink transmission.

With reference to the second aspect and the foregoing implementation manner, in a fourth implementation manner of the second aspect, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

With reference to the second aspect and the foregoing implementation manner, in a fifth implementation manner of the second aspect, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used during uplink transmission includes: and the terminal equipment determines the feedback time frequency resource corresponding to the terminal equipment according to the index of the time frequency resource and the index of the code domain resource used in the uplink transmission.

With reference to the second aspect and the foregoing implementation manner, in a sixth implementation manner of the second aspect, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in uplink transmission includes: the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set and a code domain resource to which the time frequency resource used in uplink transmission belongs, wherein the time frequency resource set comprises at least one time frequency resource.

With reference to the second aspect and the foregoing implementation manner, in a seventh implementation manner of the second aspect, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in uplink transmission includes: the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a code domain resource set and a time frequency resource to which a code domain resource used in uplink transmission belongs, wherein the code domain resource set comprises at least one code domain resource.

With reference to the second aspect and the foregoing implementation manner, in an eighth implementation manner of the second aspect, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used during uplink transmission includes: the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set to which a time frequency resource used in uplink transmission belongs and a code domain resource set to which a code domain resource belongs, wherein the time frequency resource set comprises at least one time frequency resource, and the code domain resource set comprises at least one code domain resource.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in a ninth implementation manner of the second aspect, the code domain resource includes a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

With reference to the second aspect and the foregoing implementation manner, in a tenth implementation manner of the second aspect, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the second aspect and the foregoing implementation manner, in an eleventh implementation manner of the second aspect, the LDS sequence is a multidimensional complex vector, where the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used to adjust amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

With reference to the second aspect and the foregoing implementation manner, in a twelfth implementation manner of the second aspect, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK, and the method further includes: and performing relevant processing on the indication information of the feedback result of the uplink transmission according to the symbol sequence corresponding to the terminal equipment, and determining the feedback result of the uplink transmission according to the result of the relevant processing.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in a thirteenth implementation manner of the second aspect, the symbol sequences in the symbol sequence set and the pilots have a one-to-one correspondence, and the method further includes: and determining a symbol sequence corresponding to the terminal equipment according to the pilot frequency used by the terminal equipment during uplink transmission.

With reference to the second aspect and the foregoing implementations of the second aspect, in a fourteenth implementation of the second aspect, the symbol sequence includes a walsh wash sequence or a goodwin Golden sequence.

With reference to the second aspect and the foregoing implementation manner, in a fifteenth implementation manner of the second aspect, the indication information of the uplink transmission feedback result includes location information of a feedback time-frequency resource carrying a relevant identifier of the terminal device, and the method further includes: and determining that the relevant identifier of the terminal equipment is borne on the downlink time-frequency resource indicated by the position information.

With reference to the second aspect and the foregoing implementation manner, in a sixteenth implementation manner of the second aspect, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in a seventeenth implementation manner of the second aspect, the terminal device is a user equipment.

In a third aspect, an apparatus for transmitting information is provided, the apparatus comprising: a transmitter; the processor is connected with the transmitter and used for executing instructions so as to determine feedback time-frequency resources corresponding to the terminal equipment according to the time-frequency resources and code domain resources used by the terminal equipment during uplink transmission; and the indication information is used for controlling the transmitter to send the feedback result aiming at the uplink transmission to the terminal equipment through the feedback time-frequency resource.

With reference to the third aspect, in a first implementation manner of the third aspect, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates and informs the terminal device of multiple transmission resources in advance, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources allocated in advance by the device, and the selected transmission resource is used to transmit uplink data.

With reference to the third aspect and the foregoing implementation manner, in a second implementation manner of the third aspect, the downlink time-frequency resource includes an authorization-free feedback region and an authorization feedback region, where the authorization-free feedback region is used for feedback for the authorization-free transmission, the authorization feedback region is used for feedback for the authorization transmission, and the processor is specifically configured to determine, from the authorization-free feedback region, a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource and a code domain resource used by the terminal device during uplink transmission.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in a third implementation manner of the third aspect, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource and a code domain resource used by the data portion when the terminal device performs uplink transmission.

With reference to the third aspect and the foregoing implementation manner, in a fourth implementation manner of the third aspect, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in a fifth implementation manner of the third aspect, the processor is specifically configured to determine the feedback time-frequency resource corresponding to the terminal device according to an index of a time-frequency resource and an index of a code domain resource used by the terminal device during uplink transmission.

With reference to the third aspect and the foregoing implementation manner, in a sixth implementation manner of the third aspect, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource set and a code domain resource to which the time-frequency resource used by the terminal device during uplink transmission belongs, where the time-frequency resource set includes at least one time-frequency resource.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in a seventh implementation manner of the third aspect, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the terminal device according to a code domain resource set and a time-frequency resource to which a code domain resource used by the terminal device during uplink transmission belongs, where the code domain resource set includes at least one code domain resource.

With reference to the third aspect and the foregoing implementation manner, in an eighth implementation manner of the third aspect, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource set to which a time-frequency resource used by the terminal device during uplink transmission belongs and a code domain resource set to which a code domain resource belongs, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in a ninth implementation manner of the third aspect, the code domain resource includes a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in a tenth implementation manner of the third aspect, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, and the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the third aspect and the foregoing implementation manner, in an eleventh implementation manner of the third aspect, the LDS sequence is a multidimensional complex vector, where the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used to perform amplitude and phase adjustment on a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

With reference to the third aspect and the foregoing implementation manner, in a twelfth implementation manner of the third aspect, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK or indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in a thirteenth implementation manner of the third aspect, the symbol sequences in the symbol sequence set have a one-to-one correspondence with pilots, and the processor is further configured to determine the symbol sequence corresponding to the terminal device according to the pilots used by the terminal device during uplink transmission.

With reference to the third aspect and the foregoing implementations of the third aspect, in a fourteenth implementation of the third aspect, the symbol sequence includes a walsh wash sequence or a goodney Golden sequence.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in a fifteenth implementation manner of the third aspect, the indication information of the uplink transmission feedback result includes location information of a downlink time-frequency resource that carries a relevant identifier of the terminal device.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in a sixteenth implementation manner of the third aspect, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in a seventeenth implementation manner of the third aspect, the device is a base station, and the terminal device is a user equipment.

In a fourth aspect, there is provided an apparatus for transmitting information, the apparatus comprising: a receiver; a processor connected with the receiver and used for executing instructions to determine feedback time frequency resources corresponding to the equipment according to the time frequency resources and code domain resources used in uplink transmission; and the indication information is used for controlling the receiver to receive the feedback result aiming at the uplink transmission through the feedback time frequency resource.

With reference to the fourth aspect, in a first implementation manner of the fourth aspect, the uplink transmission is an unlicensed transmission, and the unlicensed transmission pre-allocates and informs the network device of multiple transmission resources, so that when the device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources pre-allocated by the network device, and the selected transmission resource is used to transmit uplink data.

With reference to the fourth aspect and the foregoing implementation manner, in a second implementation manner of the fourth aspect, the downlink time-frequency resource includes an authorization-free feedback region and an authorization feedback region, where the authorization-free feedback region is used for feedback of the authorization-free transmission, the authorization feedback region is used for feedback of the authorization transmission, and the processor is specifically configured to determine, according to a time-frequency resource and a code domain resource used during uplink transmission, a feedback time-frequency resource corresponding to the device from the authorization-free feedback region.

With reference to the fourth aspect and the foregoing implementation manner of the fourth aspect, in a third implementation manner of the fourth aspect, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the device according to a time-frequency resource and a code domain resource used by the data portion during uplink transmission.

With reference to the fourth aspect and the foregoing implementation manner, in a fourth implementation manner of the fourth aspect, the time-frequency resource used by the device in uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the device in uplink transmission.

With reference to the fourth aspect and the foregoing implementation manner, in a fifth implementation manner of the fourth aspect, the processor is specifically configured to determine the feedback time-frequency resource corresponding to the device according to an index of a time-frequency resource and an index of a code domain resource used in uplink transmission.

With reference to the fourth aspect and the foregoing implementation manner, in a sixth implementation manner of the fourth aspect, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the device according to a time-frequency resource set and a code domain resource to which the time-frequency resource used in uplink transmission belongs, where the time-frequency resource set includes at least one time-frequency resource.

With reference to the fourth aspect and the foregoing implementation manner of the fourth aspect, in a seventh implementation manner of the fourth aspect, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the device according to a code domain resource set and a time-frequency resource to which a code domain resource used in uplink transmission belongs, where the code domain resource set includes at least one code domain resource.

With reference to the fourth aspect and the foregoing implementation manner, in an eighth implementation manner of the fourth aspect, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the device according to a time-frequency resource set to which the time-frequency resource used in uplink transmission belongs and a code domain resource set to which the code domain resource belongs, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

With reference to the fourth aspect and the foregoing implementation manner of the fourth aspect, in a ninth implementation manner of the fourth aspect, the code domain resource includes a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

With reference to the fourth aspect and the foregoing implementation manner of the fourth aspect, in a tenth implementation manner of the fourth aspect, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

With reference to the fourth aspect and the foregoing implementation manner, in an eleventh implementation manner of the fourth aspect, the LDS sequence is a multidimensional complex vector, where the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used to adjust amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

With reference to the fourth aspect and the foregoing implementation manner, in a twelfth implementation manner of the fourth aspect, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the device, the symbol sequence corresponding to the device belongs to a symbol sequence set including at least two orthogonal symbol sequences, the symbol sequence corresponding to the device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK, and the processor is further configured to perform correlation processing on the indication information of the feedback result of the uplink transmission according to the symbol sequence corresponding to the device, and determine the feedback result of the uplink transmission according to a result of the correlation processing.

With reference to the fourth aspect and the foregoing implementation manner of the fourth aspect, in a thirteenth implementation manner of the fourth aspect, the symbol sequences in the symbol sequence set have a one-to-one correspondence with the pilots, and the processor is further configured to determine the symbol sequence corresponding to the device according to the pilots used by the device during uplink transmission.

With reference to the fourth aspect and the foregoing implementations of the fourth aspect, in a fourteenth implementation of the fourth aspect, the symbol sequence includes a walsh wash sequence or a goodwin Golden sequence.

With reference to the fourth aspect and the foregoing implementation manner, in a fifteenth implementation manner of the fourth aspect, the indication information of the uplink transmission feedback result includes location information of a feedback time-frequency resource that carries a relevant identifier of the device, and the processor is further configured to determine that the relevant identifier of the device is carried on a downlink time-frequency resource indicated by the location information.

With reference to the fourth aspect and the foregoing implementation manner of the fourth aspect, in a sixteenth implementation manner of the fourth aspect, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

With reference to the fourth aspect and the foregoing implementation manner of the fourth aspect, in a seventeenth implementation manner of the fourth aspect, the apparatus is a user equipment.

In a fifth aspect, a method for transmitting information is provided, the method comprising: the network equipment determines a feedback time-frequency resource corresponding to the terminal equipment according to the relevant identification of the terminal equipment; and sending indication information aiming at the feedback result of the uplink transmission to the terminal equipment through the feedback time-frequency resource.

With reference to the fifth aspect and the foregoing implementation manner, in some implementations, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device includes: and the network equipment determines the feedback time-frequency resource according to the time-frequency resource used by the terminal equipment during the uplink transmission and the relevant identification of the terminal equipment.

With reference to the fifth aspect and the foregoing implementation manner, in some implementations, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device includes: and the network equipment determines the feedback time-frequency resource according to the code domain resource used by the terminal equipment during the uplink transmission and the relevant identifier of the terminal equipment.

With reference to the fifth aspect and the foregoing implementation manner, in some implementations, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device includes: and the network equipment determines the feedback time-frequency resource according to the time-domain resource and the code-domain resource used by the terminal equipment during the uplink transmission and the relevant identification of the terminal equipment.

In a sixth aspect, a method of transmitting information is provided, the method comprising: the terminal equipment determines a feedback time-frequency resource corresponding to the terminal equipment according to the relevant identification of the terminal equipment; and receiving the indication information of the feedback result aiming at the uplink transmission through the feedback time frequency resource.

With reference to the sixth aspect and the foregoing implementation manner, in some implementations, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device includes: and the terminal equipment determines the feedback time frequency resource according to the time frequency resource used in the uplink transmission and the relevant identification of the terminal equipment.

With reference to the sixth aspect and the foregoing implementation manner, in some implementations, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device includes: and the terminal equipment determines the feedback time frequency resource according to the code domain resource used in the uplink transmission and the relevant identifier of the terminal equipment.

With reference to the sixth aspect and the foregoing implementation manner, in some implementations, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device includes: and the terminal equipment determines the feedback time-frequency resource according to the time-domain resource and the code-domain resource used in the uplink transmission and the relevant identification of the terminal equipment.

In a seventh aspect, an apparatus for transmitting information is provided, which includes means for performing the steps in the fifth aspect and the implementations of the fifth aspect.

In an eighth aspect, an apparatus for transmitting information is provided, which includes means for performing the steps in the implementations of the sixth aspect and the sixth aspect.

In a ninth aspect, there is provided an apparatus for transferring information, comprising a memory for storing a computer program and a processor for calling and running the computer program from the memory, so that the network apparatus performs the method for transferring information of the fifth aspect and any of its various implementations.

In a tenth aspect, there is provided an apparatus for transferring information, comprising a memory for storing a computer program and a processor for calling and running the computer program from the memory, so that the terminal device performs the method for transferring information of the sixth aspect and any of its various implementations.

According to the method and the device for transmitting information of the embodiment of the invention, the network device determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission from the downlink time-frequency resource based on the time-frequency resource and the code domain resource used by the terminal device during the uplink transmission, and performs the feedback aiming at the uplink transmission on the feedback time-frequency resource, so that the feedback aiming at the uplink transmission can be realized without resource scheduling.

Drawings

Fig. 1 is a schematic diagram of a communication system to which the method of transmitting information of the present invention is applied.

Fig. 2 is a schematic flow chart of a method of transmitting information according to an embodiment of the invention.

Fig. 3 is a schematic diagram of a composition of downlink time-frequency resources according to an embodiment of the present invention.

Fig. 4 is a diagram of transmission resource definition according to an embodiment of the invention.

Fig. 5 is a schematic diagram of an encoding process of uplink transmission according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a mapping process of an LDS according to an embodiment of the present invention.

Fig. 7 is a diagram illustrating an example of an information structure of feedback information according to an embodiment of the present invention.

Fig. 8 is a flowchart illustrating a method of transmitting information according to another embodiment of the present invention.

Fig. 9 is a schematic structural diagram of an apparatus for transmitting information according to an embodiment of the present invention.

Fig. 10 is a schematic configuration diagram of an apparatus for transmitting information according to another embodiment of the present invention.

Fig. 11 is a schematic structural diagram of an apparatus for transmitting information according to an embodiment of the present invention.

Fig. 12 is a schematic structural diagram of an apparatus for transmitting information according to an embodiment of the present invention.

Fig. 13 is a schematic flow chart diagram of a method of transmitting information according to yet another embodiment of the present invention.

Fig. 14 is a schematic flow chart diagram of a method of transmitting information according to yet another embodiment of the present invention.

Fig. 15 is a schematic configuration diagram of an apparatus for transmitting information according to still another embodiment of the present invention.

Fig. 16 is a schematic configuration diagram of an apparatus for transmitting information according to still another embodiment of the present invention.

Fig. 17 is a schematic configuration diagram of an apparatus for transmitting information according to still another embodiment of the present invention.

Fig. 18 is a schematic configuration diagram of an apparatus for transmitting information according to still another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

The scheme of the embodiment of the invention can be applied to the existing cellular Communication systems, such as Global System for Mobile Communication (GSM), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), and other systems, and the supported Communication is mainly directed to voice and data Communication. Generally, a conventional base station supports a limited number of connections and is easy to implement.

The next generation mobile communication system will support not only conventional communication but also M2M (Machine to Machine) communication or MTC (Machine type communication). By the year 2020, MTC devices connected to the network are predicted to reach 500 to 1000 billion, which is far beyond the number of connections at present. For M2M type services, the requirements for the network are very different due to the wide variety of services. In general, there are several requirements as follows:

reliable transmission, but not sensitive to delay;

low latency, high reliability transmission.

And the method is easy to process for reliable transmission and delay insensitive services. However, for low-delay and high-reliability transmission-class services, not only the transmission delay is required to be short, but also the reliability is required, such as V2V (english called as "Vehicle to Vehicle") services. If the transmission is unreliable, the transmission delay is too large due to retransmission, and the requirement cannot be met.

Due to the large number of connections, there is a great difference between future wireless communication systems and existing communication systems. A large number of connections requires more resources to be consumed for accessing the terminal device and more resources to be consumed for the transmission of scheduling signaling related to the data transmission of the terminal device. The scheme of the embodiment of the invention can effectively solve the problem of resource consumption.

Optionally, the network device is a base station, and the terminal device is a user equipment.

Various embodiments are described herein in connection with a terminal device. A terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. The terminal device may be an ST (station) in a WLAN (Wireless Local Area network), and may be a cellular phone, a cordless phone, an SIP (Session Initiation Protocol) phone, a WLL (Wireless Local loop) station, a PDA (Personal Digital Assistant), a handheld device with a Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, and a terminal device in a future 5G network or a terminal device in a future evolved PLMN network, and the like.

Furthermore, various embodiments are described herein in connection with a network device. The network device may be a device such as a network device for communicating with a mobile device, and the network device may be an ACCESS POINT (AP) in a Wireless Local Area Network (WLAN), a Base Transceiver Station (BTS) in a Code Division Multiple ACCESS (GSM or CDMA) network, an NB (NodeB) in a WCDMA network, an eNB or eNodeB in a Long Term Evolution (LTE) network, an evolved Node B (eNodeB B), a relay Station or an ACCESS POINT, or a terminal device in a vehicle-mounted device, a wearable device, and a future 5G network or a network device in a future evolved PLMN network.

Moreover, various aspects or features of the invention may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard Disk, floppy Disk, magnetic tape, etc.), optical disks (e.g., CD (Compact Disk), DVD (Digital Versatile Disk), etc.), smart cards, and flash Memory devices (e.g., EPROM (Erasable Programmable Read-Only Memory), card, stick, key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

Fig. 1 is a schematic diagram of a communication system using the present invention for transmitting information. As shown in fig. 1, the communication system 100 includes a network device 102, and the network device 102 may include a plurality of antennas, e.g., antennas 104, 106, 108, 110, 112, and 114. Additionally, network device 102 can additionally include a transmitter chain and a receiver chain, each of which can comprise a plurality of components associated with signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.), as will be appreciated by one skilled in the art.

Network device 102 may communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it is understood that network device 102 may communicate with any number of terminal devices similar to terminal devices 116 or 122. End devices 116 and 122 may be, for example, cellular phones, smart phones, laptops, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable device for communicating over wireless communication system 100.

As shown in fig. 1, terminal device 116 is in communication with antennas 112 and 114, where antennas 112 and 114 transmit information to terminal device 116 over forward link 118 and receive information from terminal device 116 over reverse link 120. In addition, terminal device 122 is in communication with antennas 104 and 106, where antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

In a Frequency Division Duplex (FDD) system, forward link 118 can utilize a different Frequency band than that used by reverse link 120, and forward link 124 can utilize a different Frequency band than that used by reverse link 126, for example.

As another example, in Time Division Duplex (TDD) systems and Full Duplex (Full Duplex) systems, forward link 118 and reverse link 120 may use a common frequency band and forward link 124 and reverse link 126 may use a common frequency band.

Each antenna (or group of antennas consisting of multiple antennas) and/or area designed for communication is referred to as a sector of network device 102. For example, antenna groups may be designed to communicate to terminal devices in a sector of the areas covered by network device 102. During communication by network device 102 with terminal devices 116 and 122 over forward links 118 and 124, respectively, the transmitting antennas of network device 102 may utilize beamforming to improve signal-to-noise ratio of forward links 118 and 124. Moreover, mobile devices in neighboring cells can experience less interference when network device 102 utilizes beamforming to transmit to terminal devices 116 and 122 scattered randomly through an associated coverage area, as compared to a manner in which a network device transmits through a single antenna to all its terminal devices.

At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting apparatus and/or a wireless communication receiving apparatus. When sending data, the wireless communication sending device may encode the data for transmission. Specifically, the wireless communication transmitting device may obtain (e.g., generate, receive from other communication devices, or save in memory, etc.) a number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be contained in a transport block (or transport blocks) of data, which may be segmented to produce multiple code blocks.

In addition, the communication system 100 may be a Public Land Mobile Network (PLMN) Network, a D2D Network, an M2M Network, or other networks, and fig. 1 is a simplified schematic diagram for example, and the Network may further include other Network devices, which are not shown in fig. 1. Fig. 2 shows a schematic flow diagram of a method 200 of transmitting information according to an embodiment of the invention described from a transmitting end device. As shown in fig. 2, the method 200 includes:

s210, the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to the time frequency resource and the code domain resource used by the terminal equipment during uplink transmission;

and S220, sending indication information aiming at the feedback result of the uplink transmission to the terminal equipment through the feedback time-frequency resource.

The mode of sending information to the terminal device by the network device may be a broadcast mode, a directional mode, or other modes.

Optionally, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates and informs the terminal device of multiple transmission resources in advance for the network device, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources allocated in advance by the network device, and the selected transmission resource is used to transmit uplink data.

Specifically, in recent years, researchers have proposed a Grant-Free (Grant-Free) transmission scheme for a series of problems caused by access of a large number of users, and the Grant Free is a method for realizing uplink transmission of user data without dynamic scheduling of network devices.

The method 200 of the embodiment of the present invention may be used in a feedback process for uplink transmission based on Grant Free (i.e., using unlicensed transmission resources) scheme, for example, a feedback process for ACK or NACK in HARQ.

It should be understood that the above-mentioned feedback process of ACK or NACK in HARQ is only an exemplary illustration of feedback, the present invention is not limited thereto, and other feedback-capable manners fall within the protection scope of the present invention, for example, feedback in Automatic Repeat-reQuest (ARQ) technology may also be cited.

Hereinafter, for convenience of understanding and explanation, a process procedure in the case of applying the method according to the embodiment of the present invention to HARQ will be described in detail as an example.

In order to solve a large amount of MTC services in a future network and meet low-delay and high-reliability service transmission, the patent provides a scheme of authorization-free transmission. The Grant Free transmission in english may be denoted Grant Free. The unlicensed transmission here may be for uplink data transmission. The unauthorized transmission can be understood as any one of the following meanings, or a plurality of meanings, or a combination of partial technical features in the plurality of meanings or other similar meanings:

the unlicensed transmission may refer to: the network equipment allocates and informs the terminal equipment of a plurality of transmission resources in advance; when the terminal equipment has the requirement of uplink data transmission, selecting at least one transmission resource from a plurality of transmission resources pre-allocated by the network equipment, and sending uplink data by using the selected transmission resource; and the network equipment detects the uplink data sent by the terminal equipment on one or more transmission resources in the plurality of pre-allocated transmission resources. The detection may be blind detection, or detection according to a certain control field in the uplink data, or detection in other manners.

The unlicensed transmission may refer to: the network device pre-allocates and informs the terminal device of a plurality of transmission resources, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the plurality of transmission resources pre-allocated by the network device, and the selected transmission resource is used for transmitting uplink data.

The unlicensed transmission may refer to: the method comprises the steps of obtaining information of a plurality of pre-allocated transmission resources, selecting at least one transmission resource from the plurality of transmission resources when uplink data transmission is required, and sending the uplink data by using the selected transmission resource. The manner of acquisition may be acquired from a network device.

The unlicensed transmission may refer to: the method for realizing uplink data transmission of the terminal equipment without dynamic scheduling of the network equipment can be a scheduling mode that the network equipment indicates transmission resources for each uplink data transmission of the terminal equipment through signaling. Alternatively, implementing uplink data transmission of a terminal device may be understood as allowing data of two or more terminal devices to be transmitted on the same time-frequency resource. Alternatively, the transmission resource may be one or more transmission time units of transmission time after the time when the UE receives the signaling. A TTI may refer to a minimum Time unit of a Transmission, such as a TTI (Transmission Time Interval), which may be 1ms, or may be a predetermined TTI.

The unlicensed transmission may refer to: the terminal equipment carries out uplink data transmission without authorization of the network equipment. The authorization may refer to that the terminal device sends an uplink scheduling request to the network device, and the network device sends an uplink authorization to the terminal device after receiving the scheduling request, where the uplink authorization indicates an uplink transmission resource allocated to the terminal device.

The unlicensed transmission may refer to: a contention transmission mode, specifically, may refer to that multiple terminals perform uplink data transmission simultaneously on the same pre-allocated time-frequency resource without requiring a base station to perform authorization.

The data may include service data or signaling data.

The blind detection may be understood as a detection of data that may arrive without predicting whether data arrives. The blind detection may also be understood as a detection without an explicit signaling indication.

The transmission resources may include, but are not limited to, a combination of one or more of the following:

alpha-time domain resources such as radio frames, subframes, symbols, etc.;

beta-frequency domain resources, such as subcarriers, resource blocks, etc.;

gamma-space domain resources such as transmit antennas, beams, etc.;

theta-Code domain resources, such as Sparse Code Multiple Access (SCMA), Low Density Signature (LDS), CDMA, etc.;

delta-uplink pilot resource.

The transmission resources as above may be transmitted according to control mechanisms including, but not limited to:

a-uplink power control, e.g. uplink transmit power cap control, etc

b, setting a modulation coding mode, such as the size of a transmission block, a code rate, a modulation order and the like;

c-retransmission mechanisms, such as HARQ mechanisms, etc.

The Contention transfer Unit (abbreviated as CTU) may be a basic Transmission resource for unlicensed Transmission. The CTU may refer to transmission resources combining time, frequency and code domain, or may refer to transmission resources combining time, frequency and pilot, or may refer to transmission resources combining time, frequency, code domain and pilot.

The access region to which the CTU belongs may refer to a time-frequency region corresponding to the CTU.

The patent application with the application name of System and Method for Uplink Grant-free Transmission Scheme, PCT/CN2014/073084, provides a technical Scheme of Uplink Grant-free Transmission. The PCT/CN2014/073084 application introduces that radio resources can be divided into various CTUs, and a UE is mapped to a certain CTU. Each CTU may be assigned a set of codes, which may be a set of CDMA codes, a set of SCMA codebooks, a set of LDS sequences, or a set of signatures (signatures). Each code may correspond to a set of pilots. The user may select a code and a pilot in the set of pilots corresponding to the code for uplink transmission. The contents of the application PCT/CN2014/073084 may also be understood as being incorporated by reference as part of the contents of the embodiments of the present invention, and will not be described in detail.

In the communication system to which the method 200 is applied, there may be a plurality of (two or more) terminal devices, and each terminal device autonomously selects an unlicensed transmission resource according to the Grant Free scheme to transmit uplink data to the network device. Moreover, each pilot frequency and each transmission resource (or, an authorization-free resource) may have a one-to-one correspondence, and the network device may obtain the transmission resource selected by each terminal device according to the pilot frequency selected by each terminal device.

Without loss of generality, the method 200 will be described in detail below by taking as an example a feedback procedure for a terminal device (hereinafter, referred to as terminal device # a for ease of understanding and distinction) of a plurality of terminal devices for ease of understanding and distinction.

In S210, the network device may determine, according to the transmission resource used by the terminal device # a (hereinafter, referred to as "transmission resource # a" for easy understanding and distinction), a feedback time-frequency resource corresponding to the unlicensed transmission resource # a (i.e., a feedback time-frequency resource, hereinafter, referred to as "feedback time-frequency resource # a" for easy understanding and distinction) based on a preset mapping rule (e.g., a formula or a table entry, hereinafter, referred to as "mapping rule # a" for easy understanding and distinction) for indicating a correspondence between each transmission resource and each feedback time-frequency resource in the downlink time-frequency resources.

Similarly, the terminal device # a may determine the feedback time-frequency resource # a according to the mapping rule # a.

By using the same mapping rule for the network device and the terminal device, the feedback time-frequency resources determined by the network device and the terminal device can be the same, so that the reliability of feedback can be ensured.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region and a licensed feedback region, where the unlicensed feedback region is used for feedback of the unlicensed transmission, and the licensed feedback region is used for feedback of the licensed transmission.

The network device determines a feedback time frequency resource corresponding to the terminal device according to a time frequency resource and a code domain resource used by the terminal device during uplink transmission, and the method comprises the following steps:

and the network equipment determines the feedback time frequency resource corresponding to the terminal equipment from the authorization-free feedback area according to the time frequency resource and the code domain resource used by the terminal equipment during uplink transmission.

Specifically, fig. 3 shows an example of a distribution manner of downlink time-frequency resources according to an embodiment of the present invention, and as shown in fig. 3, the downlink time-frequency resources include an authorization feedback region for feeding back authorization transmission, an authorization-free feedback region for feeding back authorization-free transmission, and a downlink transmission region for carrying downlink data.

In addition, in the embodiment of the present invention, a process and a method for performing feedback for authorized uplink transmission by using time-frequency resources in an authorization area may be similar to those in the prior art, and a process and a method for performing downlink transmission by using time-frequency resources in a downlink transmission area may be similar to those in the prior art, and here, detailed descriptions thereof are omitted to avoid redundancy.

It should be understood that the distribution manner of the downlink time-frequency resources shown in fig. 3 is only an exemplary illustration, and the present invention is not limited thereto, for example, fig. 3 shows a manner that the authorization-exempt feedback area is located between the authorization feedback area and the downlink transmission area, but the present invention is not limited thereto, and the authorization-exempt feedback area may also be located before the authorization feedback area and at the frontmost end of the downlink time-frequency resources, or the authorization-exempt feedback area may also be located after the downlink transmission area and at the endmost end of the downlink time-frequency resources.

According to the method for transmitting information provided by the embodiment of the invention, the downlink time-frequency resource comprises the authorization-free feedback area and the authorization feedback area, the authorization-free feedback area is used for the feedback of the authorization-free transmission, the authorization feedback area is used for the feedback of the authorization transmission, the feedback of the authorization uplink transmission and the feedback of the authorization-free uplink transmission can be simultaneously responded, and the practicability and flexibility of the method for transmitting information provided by the embodiment of the invention can be improved.

Optionally, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device during uplink transmission includes:

and the network equipment determines the feedback time frequency resource corresponding to the terminal equipment according to the time frequency resource used by the terminal equipment during uplink transmission and the code domain resource used by the data part.

Specifically, in the embodiment of the present invention, the uplink transmission (including the grant transmission and the grant-free transmission) may include a data portion and a pilot portion, in the uplink transmission process, the pilot portion may be used for performing channel estimation and the like, and the data portion may carry data to be transmitted in the uplink transmission.

In addition, as described above, the transmission resources may include time domain resources, frequency domain resources, spatial domain resources, code domain resources, and the like, and the network device or the terminal device may use the time frequency resources and the code domain resources therein to determine the feedback time frequency resources.

Optionally, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

Specifically, in the current Grant-free scheme, a CTU is defined as an information carrying unit, the user equipment maps data on the CTU according to a certain criterion to complete uplink data transmission, and the base station performs blind detection on CTU resources to recover carried user data.

Fig. 4 shows a time-frequency region in which the available bandwidth is divided into four contention access regions (also referred to as CTU access regions), namely, CTU access regions (CTU access regions) 310, 320, 330 and 340. Each CTU access region may occupy a predetermined number of Resource blocks (Resource blocks), for example, in the embodiment of fig. 4, CTU access region310 includes four RBs: RB1, RB2, RB3, and RB 4. Embodiments of the present invention are not limited thereto, e.g., different contention access regions may include different numbers of RBs. In fig. 4, each CTU access region can support 36 UEs competing for 36 CTUs defined in the CTU access region, each CTU being a combination of time domain resources, frequency domain resources, code domain resources, and pilots. The code domain resources comprise CDMA codes or SCMA codes or LDS sequences or other signatures (signatures) and the like. Each contention access region occupies one time-frequency resource region, each time-frequency resource region supports 6 code domain resources (S1-S6), and each code domain resource is mapped to 6 pilots, thereby generating a total of 36 pilots (P1-P36). The network device may use a pilot or code domain resource decorrelator to detect or decode signals transmitted by individual UEs on the CTUs.

When the UE enters the coverage area of the source network device, it may receive a high layer signaling sent by the network device. The higher layer signaling may carry CTU access region definition (CTU access region definition), total number of CTUs, default mapping rules, and the like. Alternatively, the UE may also be preconfigured with default mapping rules. The UE may determine an appropriate CTU on which to perform the unlicensed transmission. A collision occurs when different UEs are in unlicensed transmission at the same CTU, i.e. contend for the same CTU. The UE may determine whether a collision exists based on an indication of the network device. For example, asynchronous HARQ methods may be employed to resolve problems caused by collisions. However, if the number of collisions exceeds a predetermined threshold, the network device may be requested to remap the CTUs. And the network equipment sends the information of the remapped CTU to the UE so that the UE can carry out authorization-free transmission on the remapped CTU.

It should be understood that fig. 4 shows four CTU access regions for convenience of description, and embodiments of the present invention are not limited thereto, and more or less CTU access regions may be defined as necessary. .

Therefore, in the embodiment of the present invention, the feedback resource may be determined according to the CTU access region.

That is, the mapping rule # a may record a mapping relationship between each CTU access region and each feedback time-frequency resource. Thus, the network device or the terminal device # a may determine the same feedback time-frequency resource (e.g., time-frequency resource block) for performing feedback with respect to the terminal device # a according to the uplink CTU access region used by the terminal device # a during the unlicensed transmission.

For another example, in the embodiments of the present invention, the feedback resource may be determined according to a code domain resource (e.g., a codebook) used for the unlicensed transmission.

That is, the mapping rule # a may record a mapping relationship between each code domain resource and each feedback time-frequency resource. Thus, the network device or the terminal device # a may determine the same feedback time-frequency resource for performing feedback for the terminal device # a according to the codebook used by the terminal device # a in uplink transmission.

For another example, in the embodiment of the present invention, the feedback resource may be determined according to a pilot resource used for the unlicensed transmission.

That is, the mapping rule # a may record the mapping relationship between each pilot and each feedback time-frequency resource. Thus, the network device or the terminal device # a may determine the same feedback time-frequency resource for performing feedback for the terminal device # a according to the pilot used by the terminal device # a in uplink transmission.

For another example, in an embodiment of the present invention, the feedback resources may be determined according to spatial resources (e.g., antennas used) for the unlicensed transmission.

That is, the mapping rule # a may record a mapping relationship between each spatial resource and each feedback time-frequency resource. Thus, the network device or the terminal device # a may determine the same feedback time-frequency resource (i.e., feedback time-frequency resource) for performing feedback with respect to the terminal device # a according to the space-frequency resource used by the terminal device # a during uplink transmission.

After determining the feedback time-frequency resource, in S220, the network device may send feedback information (i.e., an example of indication information of the feedback result of the uplink transmission, for example, ACK information or NACK information) for the terminal device # a on the feedback time-frequency resource, and the terminal device # a receives the feedback information on the feedback time-frequency resource.

Therefore, the feedback process of the uplink transmission can be completed without resource scheduling of the network equipment.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK.

Specifically, in the embodiment of the present invention, one or more symbol sequence sets may be preset, and each symbol sequence set includes a plurality of symbol sequences orthogonal to each other.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Specifically, in the embodiment of the present invention, a wash sequence or a Golden sequence, for example, may be used as the orthogonal symbol sequence, and it should be understood that the specific examples listed above as the symbol sequence are only exemplary and the present invention is not limited thereto, and the symbol sequence of the present invention may be generated by any method capable of generating an orthogonal sequence.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The method further comprises the following steps:

and determining a symbol sequence corresponding to the terminal equipment according to the pilot frequency used by the terminal equipment during the authorization-free transmission.

Specifically, in the embodiment of the present invention, a plurality of pilots may be associated with a plurality of symbol sequences one to one, so that, after terminal apparatus # a selects pilot # a, the network apparatus or terminal apparatus # a may determine symbol sequence # a corresponding to pilot # a as the symbol sequence corresponding to terminal apparatus # a.

It should be understood that the above-listed specific implementation manners of mapping the terminal device to the symbol sequence one by one are merely illustrative, and the present invention is not limited thereto, for example, the device identifier of the terminal device may be used as the medium, that is, a plurality of terminal device identifiers and a plurality of symbol sequences are in one-to-one correspondence, so that the network device or the terminal device # a may determine the symbol sequence # a corresponding to the identifier of the terminal device # a as the symbol sequence corresponding to the terminal device # a.

Therefore, when the network device performs feedback, the symbol sequences corresponding to a plurality of terminal devices whose feedback results are ACK in the same terminal device group may be superimposed, and carried in the same feedback time-frequency resource determined as described above, and sent to each terminal device, and each terminal device performs correlation processing (for example, autocorrelation processing) on the information (formed by superimposing a plurality of symbol sequences) carried in the feedback time-frequency resource according to the respective corresponding symbol sequence, so that each terminal device can determine whether the information carries a symbol sequence relative to the information, and if the determination result is yes, it indicates that the result fed back by the network device is ACK; and if the judgment result is negative, the network equipment indicates that the result fed back by the network equipment is NACK.

Similarly, when the network device performs feedback, the symbol sequences corresponding to a plurality of terminal devices whose feedback results are NACK in the same terminal device group may be superimposed, and carried in the same feedback time-frequency resource determined as described above, and sent to each terminal device, where each terminal device performs autocorrelation processing on information (formed by superimposing a plurality of symbol sequences) carried in the feedback time-frequency resource according to the respective corresponding symbol sequence, so that each terminal device can determine whether the information carries a symbol sequence relative to the information, and if the determination result is yes, it indicates that the result fed back by the network device is NACK; and if the judgment result is negative, the result fed back by the network equipment is ACK.

In the prior art, a Physical hybrid automatic repeat request indicator Channel (PHICH) is used to carry HARQ response information for an uplink shared Channel data packet, and a terminal device determines whether to retransmit an uplink data packet according to the response information, so that a relatively high requirement is placed on reliability of the response information.

At present, a specific processing method in the LTE system is as follows, under the condition of a conventional Cyclic Prefix (CP), 8 ACK/NACK bits (bits) form a Group, each ACK/NACK bit is multiplied by an orthogonal spreading sequence with a length of 4 after being subjected to triple repetition and Binary Phase Shift Keying (BPSK) modulation, and then multiple signals in the Group are superimposed and scrambled, and are mapped on3 discrete Resource Element Groups (REGs) in a control region. The process flow of the extended CP is similar to that described above except that one PHICH group packs 4 ACK/NACK bits and the orthogonal spreading sequence length is 2. The number of ACK/NACK bits for code division multiplexing is reduced to half that in the case of the conventional CP, because the extended CP is generally used in a channel environment with relatively obvious frequency selectivity, and the orthogonality between sequences is significantly reduced by the influence of the channel.

Assuming that a Grant-free system Orthogonal Frequency Division Multiplexing (OFDM) framework is adopted, a system bandwidth is 6RB (1.08MHz), the size of a time-Frequency Resource occupied by a single CTU access region is one Resource Block (RB), 150% of SCMA codebooks are provided, and the number of pilot frequencies corresponding to each codebook is 6, and in an extreme case, the number of Resource elements (REs, Resource elements) for ACK/NACK response is 3240.

The total number of REs in the system is 10080 for each of the above parameters.

It can be seen that feedback needs to occupy almost 1/3 resources, and if the packet transmission condition in the IOT scenario is considered, the CTU access region is smaller, and the number of accommodated users in a unit time is larger, the RE number requirement for feedback will further increase, obviously, considering the overhead of other system signaling, the downlink channel cannot provide so many resources for response.

In contrast, according to the method for transmitting information in the embodiment of the present invention, a plurality of terminal devices that perform uplink transmission using the same code domain resource or uplink time-frequency resource correspond to a plurality of orthogonal symbol sequences one to one, and generate indication information of a feedback result according to the symbol sequence corresponding to each terminal device and bear the indication information in the same feedback time-frequency resource, so that feedback of the plurality of terminal devices on the same time-frequency resource can be achieved, overhead of the time-frequency resource can be reduced, the number of terminal devices accommodated in a communication system in unit time can be increased, transmission efficiency can be increased, and transmission reliability can be further increased.

As described above, there is a case where a plurality of terminal devices multiplex the same CTU access region (i.e., an example of time-frequency resource) for uplink transmission, and there is a case where a plurality of terminal devices multiplex the same code domain resource for uplink transmission, so that there may be a case where feedback time-frequency resources corresponding to the plurality of terminal devices are the same, and by making the plurality of terminal devices that use the same code domain resource or uplink time-frequency resource for uplink transmission correspond to a plurality of orthogonal symbol sequences one-to-one, and generating indication information of a feedback result according to the symbol sequence corresponding to each terminal device and loading the indication information to the same feedback time-frequency resource, it is possible to avoid a case where the terminal devices that multiplex the same CTU access region or use the same code domain resource cannot accurately transmit the feedback result due to selection of the same feedback time-frequency resource.

Here, as a basis for determining the grouping of the terminal device group (or a basis for determining a plurality of terminal devices using the same symbol sequence set), a code domain resource used by each terminal device may be used (i.e., case 1), that is, a terminal device using the same code domain resource needs to use symbol sequences that are orthogonal to each other in the same symbol sequence set, and correspondingly, a feedback time-frequency resource may be determined according to the code domain resource to ensure that terminal devices using different code domain resources correspond to different feedback time-frequency resources, and further, that symbol sequences carried on the same feedback time-frequency resource belong to the same symbol sequence set and are orthogonal to each other.

Or, as a basis for determining the grouping of the terminal device group, the time frequency resources used by each terminal device may also be, for example, the CTU access region (that is, case 2), that is, the terminal devices using the same time frequency resource need to use orthogonal symbol sequences belonging to the same symbol sequence set, and correspondingly, the feedback time frequency resources may be determined according to the time frequency resources, so as to ensure that the terminal devices using different time frequency resources correspond to different feedback time frequency resources, and further, ensure that the symbol sequences carried on the same feedback time frequency resource belong to the same symbol sequence set and are orthogonal to each other.

The following describes in detail the method for determining the feedback resource in each of the above two cases.

Case 1

First, the "code domain resource" in the embodiment of the present invention will be described.

Optionally, the unlicensed code domain resource includes a sparse code division multiple access SCMA codebook, a low density signed LDS sequence, or a code division multiple access CDMA code.

Specifically, in the embodiment of the present invention, an SCMA codebook, an LDS sequence or a CDMA code may be used as the code domain resource, and it should be understood that the above-listed specific examples as the code domain resource are only exemplary, and the present invention is not limited thereto, and other codebooks that can be used for transmission all fall into the protection scope of the present invention.

Optionally, the SCMA codebook comprises at least two codewords, the SCMA codebook is used for indicating mapping relations between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and used for indicating mapping relations between data and a plurality of modulation symbols, and the modulation symbols comprise at least one zero modulation symbol and at least one non-zero modulation symbol

Specifically, Sparse Code Multiple Access (SCMA) is a non-orthogonal Multiple Access technology, and those skilled in the art may refer to this technology as SCMA or other technology names instead of SCMA. According to the technology, a plurality of different data streams are transmitted on the same transmission resource by means of codebooks, wherein the codebooks used by the different data streams are different, and therefore the utilization rate of the resource is improved. The data streams may be from the same terminal device or from different terminal devices.

The SCMA employs a codebook that is a collection of two or more codewords.

The codeword may be a multi-dimensional complex field vector, the number of dimensions of which is two or more than two dimensions, and is used to represent a mapping relationship between data and two or more modulation symbols, the mapping relationship may be a direct mapping relationship, the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol, the data may be binary bit data or multivariate data, and the relationship between the zero modulation symbol and the non-zero modulation symbol may be that the number of the zero modulation symbols is not less than the number of the non-zero modulation symbols.

The codebook consists of two or more codewords. The codebook may represent a mapping of possible data combinations of data of a certain length to codewords in the codebook, which may be a direct mapping.

The SCMA technique implements extended transmission of data on multiple resource units by directly mapping data in a data stream into codewords, i.e., multidimensional complex vectors, in a codebook according to a certain mapping relationship. Direct mapping in SCMA techniques may be understood as meaning that the data in the data stream need not be mapped to intermediate modulation symbols, or have other intermediate processing. The data may be binary bit data or multivariate data, and the plurality of resource units may be resource units of time domain, frequency domain, space domain, time-frequency domain, time-space domain, and time-frequency space domain.

The code word adopted by the SCMA may have a certain sparsity, for example, the number of zero elements in the code word may be not less than the number of modulation symbols, so that a receiving end may utilize a multi-user detection technique to perform decoding with a lower complexity. Here, the above-listed relationship between the number of zero elements and the modulation symbol is only an exemplary sparse description, and the present invention is not limited thereto, and the ratio of the number of zero elements to the number of non-zero elements may be arbitrarily set as necessary.

In a communication system using SCMA, a plurality of users multiplex the same time-frequency resource block for data transmission. Each resource block is composed of a plurality of resource REs, where the REs may be subcarrier-symbol units in the OFDM technology, or resource units in time domain or frequency domain in other air interface technologies. For example, in an SCMA system including L terminal devices, the available resources are divided into several orthogonal time-frequency resource blocks, each resource block contains U REs, where the U REs may be located at the same position in the time domain. When terminal device # L transmits data, the data to be transmitted is first divided into data blocks of S bit size, and each data block is mapped into a set of modulation symbol sequence X # L ═ X # L including U modulation symbols by looking up a codebook (determined by the network device and issued to the terminal device)₁，X#L₂，...，X#L_UAnd each modulation symbol in the sequence corresponds to one RE in the resource block, and then a signal waveform is generated according to the modulation symbol. For a data block of size S bits, each codebook contains 2S different modulation symbol groups, corresponding to 2S possible data blocks.

The codebook may also be referred to as an SCMA codebook, which is a SCMA codeword set, and an SCMA codeword is a mapping relation from information bits to modulation symbols. That is, the SCMA codebook is a set of the above mapping relationships.

In the SCMA, a group modulation symbol X # k corresponding to each terminal device is { X # k ═ X # k-₁，X#k₂，...，X#k_LAt least one symbol is a zero symbol and at least one symbol is a non-zero symbol. That is, for data of one terminal device, only a part of REs (at least one RE) among the L REs carries the data of the terminal device.

Fig. 5 is a schematic diagram illustrating a bit mapping process (or coding process) of the SCMA by taking an example of multiplexing 6 data streams with 4 resource units, where as shown in fig. 5, 6 data streams form a packet and 4 resource units form a coding unit. One resource unit may be one subcarrier, or one RE, or one antenna port. In fig. 5, a connection line exists between a data stream and a resource unit to indicate that at least one data combination of the data stream will send a non-zero modulation symbol on the resource unit after codeword mapping, and no connection line exists between the data stream and the resource unit to indicate that all possible data combinations of the data stream will send zero modulation symbols on the resource unit after codeword mapping. The data combination of the data stream can be understood as set forth below, for example, in a binary bit data stream, 00, 01, 10, 11 are all possible two-bit data combinations. For convenience of description, data of each data stream is denoted as s1 to s6, a symbol transmitted by each resource unit is denoted as x1 to x4, and a connection between a data stream and a resource unit denotes that data of the data stream is spread to transmit a modulation symbol on the resource unit, where the modulation symbol may be a zero symbol (corresponding to a zero element) or a non-zero symbol (corresponding to a non-zero element), and a lack of a connection between a data stream and a resource unit denotes that data of the data stream is spread to not transmit a modulation symbol on the resource unit.

As can be seen from fig. 5, the data of each data stream is spread and transmitted on multiple resource units, and the symbol transmitted by each resource unit is a superposition of the spread non-zero symbols of the data from multiple data streams. For example, data s3 of data stream 3 is spread to send non-zero symbols on resource unit 1 and resource unit 2, and data x2 sent by resource unit 3 is a superposition of the non-zero symbols obtained by spreading data s2, s4 and s6 of data stream 2, data stream 4 and data stream 6, respectively. Because the number of data streams can be larger than the number of resource units, the SCMA system can effectively increase the network capacity, including the number of accessible users and the spectrum efficiency of the system.

The codewords in the codebook are typically of the form:

moreover, the corresponding codebook typically has the form:

n is a positive integer greater than 1, and may be represented as the number of resource units included in one coding unit, or may be understood as the length of a codeword; q_mIs a positive integer greater than 1, indicates the number of codewords contained in the codebook, and corresponds to the modulation order, e.g., Q in Quadrature Phase Shift Keying (QPSK) or 4-order modulation_mIs 4; q represents Q_mQ is a positive integer and is not less than 1 and not more than Q_m(ii) a Element c contained in codebook and codeword_n，qIs a plurality of c_n，qMathematically it can be expressed as:

c_n，q∈{0，α*exp(j*β)}，1≤n≤N，1≤q≤Q_m

alpha can be any real number, beta can be any value, N and Q_mMay be a positive integer.

And, the code word in the codebook may form a certain mapping relation with the data, for example, the code word in the codebook may form a mapping relation with 2-bit data.

For example, "00" may correspond to codeword 1, i.e.

"01" may correspond to codeword 2, i.e.

"10" may correspond to codeword 3, i.e.

"11" may correspond to codeword 4, i.e.

With reference to fig. 3, when there is a connection between a data stream and a resource unit, a codebook corresponding to the data stream and a codeword in the codebook should have the following characteristics: there is at least one codeword in the codebook to transmit a non-zero modulation symbol on the corresponding resource unit, e.g., there is a connection between the data stream 3 and the resource unit 1, then at least one codeword in the codebook corresponding to the data stream 3 satisfies c_1，q≠0，1≤q≤Q_m；

When there is no connection between the data stream and the resource unit, the codebook corresponding to the data stream and the codeword in the codebook should have the following characteristics: all code words in the codebook transmit zero modulation symbols on corresponding resource units, e.g. there is no connection between data stream 3 and resource unit 3, and then any code word in the codebook corresponding to data stream 3 satisfies c_3，q＝0，1≤q≤Q_m。

In summary, when the modulation order is QPSK, the codebook corresponding to data stream 3 in fig. 3 may have the following form and characteristics:

wherein, c_n，q＝αExp (j × β), n is more than or equal to 1 and less than or equal to 2, q is more than or equal to 1 and less than or equal to 4, alpha and beta can be any real number, and for any q, q is more than or equal to 1 and less than or equal to 4, c_1，qAnd c_2，qNot simultaneously zero, and at least one group q₁And q is₂，1≤q₁，q₂Less than or equal to 4, so thatAnd is

For example, if the data s3 of the data stream 3 is "10", the data combination is mapped to a codeword, i.e. a 4-dimensional complex vector, according to the aforementioned mapping rule:

optionally, the LDS sequence includes at least two signature sequences, the LDS sequence is configured to indicate a mapping relationship between at least two data combinations and the at least two signature sequences, the signature sequences are multidimensional complex vectors, each multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequences are configured to perform amplitude and phase adjustment on modulation symbols, and the modulation symbols are obtained by constellation mapping of data through a modulation constellation.

Specifically, a Low Density Signature (LDS) technology is also a non-orthogonal multiple access and transmission technology, and may be referred to as other names in the field of communications. The technology superposes O (O is an integer not less than 1) data streams from one or more users on P (P is an integer not less than 1) subcarriers for transmission, wherein each data of each data stream is spread on the P subcarriers by means of sparse spreading. When the value of O is larger than P, the technology can effectively improve the network capacity, including the number of users which can be accessed by the system, the spectrum efficiency and the like. Therefore, LDS technology has attracted more and more attention as an important non-orthogonal access technology, and becomes an important alternative access technology for future wireless cellular network evolution.

As shown in fig. 5, the explanation is given by taking an example that 6 data streams multiplex 4 resource units, that is, O is 6 and P is 4, where O is a positive integer and indicates the number of data streams; p is a positive integer representing the number of resource units. One Resource Element may be a subcarrier, or a Resource Element (RE), or an antenna port. Wherein 6 data streams constitute a packet and 4 resource units constitute a coding unit.

In the bipartite graph shown in fig. 6, a connection line exists between a data stream and a resource unit to indicate that at least one data combination of the data stream exists, the data combination is constellation-mapped and amplitude-and-phase-adjusted to transmit a non-zero modulation symbol on the resource unit, and no connection line exists between the data stream and the resource unit to indicate that all possible data combinations of the data stream are constellation-mapped and amplitude-and-phase-adjusted to transmit a zero modulation symbol on the resource unit. The data combination of the data stream can be understood as set forth below, for example, in a binary bit data stream, 00, 01, 10, 11 are all possible data combinations of two bits of data. For convenience of description, data combinations to be transmitted for 6 data streams in the bipartite graph are sequentially denoted by s1 to s6, and modulation symbols transmitted on 4 resource elements in the bipartite graph are sequentially denoted by x1 to x 4.

As can be seen from the bipartite graph, after constellation mapping and amplitude and phase adjustment, the data combination of each data stream transmits modulation symbols on two or more resource units, and meanwhile, the modulation symbol transmitted by each resource unit is a superposition of the modulation symbols of the data combination of two or more data streams after respective constellation mapping and amplitude and phase adjustment. For example, the data combination s3 to be transmitted of the data stream 3 may be a non-zero modulation symbol transmitted on the resource unit 1 and the resource unit 2 after constellation mapping and amplitude and phase adjustment, and the modulation symbol x3 transmitted by the resource unit 3 is a superposition of the non-zero modulation symbols obtained after the data combinations s2, s4, and s6 to be transmitted of the data streams 2, 4, and 6 are respectively constellation mapping and amplitude and phase adjustment. Because the number of data streams can be larger than the number of resource units, the non-orthogonal multiple access system can effectively improve the network capacity, including the number of accessible users and the spectrum efficiency of the system.

Further, as shown in fig. 6, a modulation symbol obtained by constellation mapping of data (b1, b2) of the data stream is q, and each element in the signature sequence, that is, an adjustment factor, is used to adjust the phase and amplitude of the modulation symbol q, so as to obtain modulation symbols transmitted on each resource unit, which are q _ s1, q _ s2, q _ s3, and q _ s4, respectively.

It should be understood that the SCMA codebook and LDS sequence listed above as code domain resources are only exemplary illustrations, the present invention is not limited thereto, and CDMA codes and the like can be listed.

Next, a method for determining a feedback resource according to a code domain resource will be described in detail.

Optionally, for the network device, determining, according to a time-frequency resource and a code domain resource used by the terminal device when performing uplink transmission, a feedback time-frequency resource corresponding to the terminal device, where the time-frequency resource used by the terminal device when performing uplink transmission may be a time-frequency resource corresponding to a CTU used by the terminal device when performing uplink transmission, and the time-frequency resource corresponding to the CTU may also be understood as an access area to which the CTU belongs; the code domain resource used by the network device according to the uplink transmission performed by the terminal device may be a code domain resource used by the data portion when the terminal device performs the uplink transmission.

Optionally, the network device determines, according to a time-frequency resource and a code domain resource used by the terminal device during uplink transmission, a feedback time-frequency resource corresponding to the terminal device, which specifically is: and the network equipment determines the feedback time frequency resource corresponding to the terminal equipment according to the index of the time frequency resource and the index of the code domain resource used by the terminal equipment during uplink transmission.

Further optionally, the index of the code domain resource used by the terminal device in uplink transmission may be an index of the code domain resource used by the data portion in uplink transmission by the terminal device.

Further optionally, the index of the time-frequency resource used by the terminal device during uplink transmission may be an index of a time-frequency resource corresponding to a CTU used by the terminal device during uplink transmission, and the index of the time-frequency resource corresponding to the CTU may also be understood as an index of an access area to which the CTU belongs.

Optionally, the network device determines, according to a time-frequency resource and a code domain resource used by the terminal device during uplink transmission, a feedback time-frequency resource corresponding to the terminal device, which specifically is: the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set and a code domain resource to which the time frequency resource used by the terminal equipment during uplink transmission belongs, wherein the time frequency resource set comprises at least one time frequency resource.

Further optionally, the code domain resource used in the uplink transmission may be a code domain resource used by the data portion in the uplink transmission performed by the terminal device.

Further optionally, the time-frequency resource set to which the time-frequency resource used by the terminal device during uplink transmission belongs may be a time-frequency resource set to which a time-frequency resource corresponding to a CTU used by the terminal device during uplink transmission belongs, and the time-frequency resource corresponding to the CTU may also be understood as an access area to which the CTU belongs.

The specific implementation of the time frequency resource set may be an index of the time frequency resource set, and the specific implementation of the code domain resource may also be an index of the code domain resource. Optionally, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device during uplink transmission includes: the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a code domain resource set and a time frequency resource to which the code domain resource used by the terminal equipment during uplink transmission belongs, wherein the code domain resource set comprises at least one code domain resource.

Further optionally, the code domain resource set to which the code domain resource used in the uplink transmission belongs may be a code domain resource set to which the code domain resource used by the data portion belongs in the uplink transmission performed by the terminal device.

Further optionally, the time-frequency resource used by the terminal device during uplink transmission may be a time-frequency resource corresponding to a CTU used by the terminal device during uplink transmission, and the time-frequency resource corresponding to the CTU may also be understood as an access area to which the CTU belongs.

Optionally, the network device determines, according to a time-frequency resource and a code domain resource used by the terminal device during uplink transmission, a feedback time-frequency resource corresponding to the terminal device, which specifically is: the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set and a code domain resource set which a time frequency resource used by the terminal equipment in uplink transmission belongs to, wherein the time frequency resource set comprises at least one time frequency resource, and the code domain resource set comprises at least one code domain resource.

The specific implementation of the code domain resource set may be an index of the code domain resource set, the specific implementation of the time-frequency resource set may also be an index of the time-frequency resource, for example, an index of an access area to which the CTU belongs, and the specific implementation of the time-frequency resource set may be an index of the time-frequency resource set, for example, an index of an access area to which the CTU belongs.

In particular, in embodiments of the present invention, a set of code domain resources may comprise one or more code domain resources (e.g., codebooks).

In this case, one symbol sequence set corresponds to one code domain resource set, specifically, each element in one symbol sequence set corresponds to each element in one code domain resource set, where each element in one symbol sequence set is a plurality of symbol sequences orthogonal to each other in the symbol sequence set, and each element in one code domain resource set is a plurality of code domain resources in one code domain resource set, that is, the symbol sequence set is configured in units of the code domain resource set, or in other words, when a plurality of code domain resources correspond to a plurality of pilots one to one, a plurality of (part of or all) orthogonal symbol sequences in the same symbol sequence set may also correspond to pilots corresponding to a plurality of code domain resources in the code domain resource set corresponding to the symbol sequence set one to one.

For example, when only one code domain resource is included in the set of code domain resources, each pilot in the one code domain resource corresponds to a plurality of symbol sequences in the set of symbol sequences one to one.

For another example, when the code domain resource set includes a plurality of code domain resources, each pilot in the plurality of code domain resources corresponds to a plurality of symbol sequences in the symbol sequence set one to one.

Next, a method of generating a symbol sequence (or a symbol sequence set) will be described in detail.

For example, the symbol sequence set may be generated by spreading a WASH sequence according to a Hadamard matrix, and it is assumed that there are 6 terminal devices corresponding to each code domain resource (or, there are 6 pilots corresponding to each code domain resource, and the 6 pilots correspond to 6 terminal devices one by one), so that a 4-order WASH orthogonal sequence set may be spread (total 8 orthogonal sequences, and at most 8 terminal devices may be supported). The specific generation process can be shown by the following formula:

wherein H₂For a 2 nd order Hadamard matrix, through a recursion matrix H_2NAfter expansion, generating a 4-order Hardamard matrix, and obtaining 4-order WASH orthogonal sequences by taking column vectors of the matrix; using column vector element 1 as an imaginary number

After the replacement, another 4 th-order WASH sequences are obtained, so that a total of 8 mutually orthogonal 4 th-order WASH sequences are obtained. Higher order WASH sequence generation may be analogized. Table 1 below shows an example of the symbol sequence (4 th order WASH sequence) generated as described above.

TABLE 1

Sequence indexing	Symbol sequence
		0	1，1，1，1
1	1，-1，1，-1
		2	1，1，-1，-1
3	1，-1，-1，1
		4	j，j，j，j
5	j，-j，j，-j
		6	j，j，-j，-j
7	j，-j，-j，j

For example, when only one code domain resource is included in the code domain resource set, since the number of terminal devices (or pilots) corresponding to each code domain resource is 6, the requirement of one-to-one correspondence with the pilots can be met only by selecting 6 from the generated WASH sequence set, for example, the first 6 orthogonal sequences may be taken and mapped one-to-one with the pilots according to the sequence numbers. Table 2 below shows an example of the correspondence relationship between each terminal device and each symbol sequence.

TABLE 2

Pilot index	Symbol sequence
		0	1，1，1，1
1	1，-1，1，-1
		2	1，1，-1，-1
3	1，-1，-1，1
		4	j，j，j，j
5	j，-j，j，-j

For another example, when the code domain resource set includes K code domain resources and the number of terminal devices (or pilots) corresponding to each code domain resource is 6, the requirement of one-to-one correspondence with the pilots can be met by selecting 6K symbol sequences from the generated WASH sequence set, and the symbols are mapped one-to-one according to the sequence numbers and the pilots.

It should be understood that the above-mentioned generating manner of the WASH sequence is exemplified, the present invention is not limited thereto, and Hadamard matrices with different orders may be adopted to generate symbol sequence sets with different numbers of included symbol sequences, so as to support different numbers of terminal devices to multiplex the same feedback time-frequency resource.

For example, table 2 below shows an example of the step 2 WASH sequence generated as described above.

TABLE 2

Sequence indexing	Symbol sequence
		0	1，1，
1	1，-1
		2	j，j
3	j，-j

For another example, table 3 below shows an example of the step 8 WASH sequence generated as described above.

TABLE 3

Alternatively, the set of symbol sequences can be made up of a plurality of Golden sequences, e.g., the Golden sequence can be made up of twoM sequences of 5 orders forming a preferred pair are modulo-2 added, and specifically, since a new Golden sequence can be obtained by changing the relative displacement of two m sequences, and the original two m sequences are added, the m sequences of 5 orders can generate 2^m-1The total number of Golden sequences is 33, and the maximum number of Golden sequences supports 33 pilots. Higher order Golden sequences can be generated based on higher order m-sequence recursion.

Table 4 below shows another example of the symbol sequence (Golden sequence) generated as described above.

TABLE 4

It should be understood that the above-listed Golden sequence generation methods and specific examples are only exemplary, the present invention is not limited thereto, and for example, corresponding Golden sequences can be generated according to m-sequence feedback coefficients shown in the following table 5.

TABLE 5

Number of stages	Period of time	Feedback coefficient (octal system)
			5	31	45，67，75
6	63	103，147，155
			7	127	203，211，217，235，277，313，325，345，367

For example, when the code domain resource set includes K code domain resources, if the number of pilots corresponding to each code domain resource is 6, 6K symbol sequences need to be selected from the generated WASH sequence group to satisfy the requirement that the selected symbol sequences correspond to multiple pilots one by one.

When a code domain resource is opposite to a symbol sequence set, the number of terminal devices using the code domain resource (or the number of pilots corresponding to the code domain resource) may be smaller than the number of symbol sequences in a symbol sequence set, thereby causing the situation that the symbol sequences in the symbol sequence set are not selected by any terminal device and are wasted.

In view of the above, according to the method for transmitting information of the embodiment of the present invention, one code domain resource set may be formed by a plurality of code domain resources, and the code domain resource set may correspond to one symbol sequence set, (for example, one code domain resource set includes pilots corresponding to each code domain resource in a one-to-one correspondence with each symbol sequence in one symbol sequence set), so that all symbol sequences in the symbol sequence set can be utilized, and transmission resources can be further saved.

And the network device may determine the feedback time-frequency resource corresponding to each terminal device.

For example, in the embodiment of the present invention, terminal devices using different code domain resource sets correspond to different symbol sequences for combination, and feedback time-frequency resources corresponding to terminal devices using different code domain resource sets are also different, so that feedback time-frequency resources corresponding to terminal devices using different code domain resources are different, and symbol sequences of terminal devices using the same code domain resource set are orthogonal to each other, and can be borne on the same feedback time-frequency resource.

In addition, in order to ensure the reliability of transmission, the time-frequency resource can be determined in the following way.

Specifically, there may be a case where, for example, in a case where a plurality of terminal apparatuses using the upstream CTU access region set # a (including at least one CTU access region) and a plurality of terminal apparatuses using the upstream CTU access region set # B (including at least one CTU access region) select the same symbol sequence set, since orthogonal sequences that can be provided by the symbol sequence set are limited, a case where a plurality of users select the same symbol sequence may occur,

for example, if the number of terminal devices using the uplink CTU access region set # a is 6, the number of terminal devices using the uplink CTU access region set # B is 6, and the number of orthogonal symbol sequences included in the WASH sequence set generated as described above is 8, the number of orthogonal symbol sequences 8 that can be provided is smaller than the number of terminal devices that select the same feedback time-frequency resource 12.

Therefore, by enabling the terminal device using the uplink CTU access region set # a and the terminal device using the uplink CTU access region set # B to correspond to different feedback time-frequency resources, that is, by enabling the terminal devices corresponding to different uplink CTU access region sets (i.e., an instance of the uplink time-frequency resources) but corresponding to the same code domain resource set (i.e., an instance of the code domain resources) to correspond to different feedback time-frequency resources, the number of terminal devices using the same feedback time-frequency resource can be made smaller than or equal to the number of symbol sequences in one symbol sequence set, and the reliability of transmission can be ensured.

For example, but not limited to, the feedback time-frequency resource corresponding to each terminal device may be determined according to the following formula:

wherein RE_indexRepresenting the feedback time-frequency resource, CTU, corresponding to the terminal device_indexRepresents time-frequency resources (e.g., the unlicensed transmission) used by the terminal device in uplink transmission (e.g., the terminal device)CTU access region corresponding to the CTU used by the terminal device), Codebook_indexThe index indicates the code domain resource (e.g., codebook) used by the terminal device, a indicates the number of code domain resources provided by the system (or code domain resources corresponding to the CTU used by the terminal device), b may be determined according to the number of symbol sequences orthogonal to each other in a symbol sequence set (or the number of pilots corresponding to one code domain resource), for example, when a WASH sequence is used as the symbol sequence, b indicates the order of a Hadamard matrix, and the order of the Hadamard matrix is determined according to the number of orthogonal symbol sequences required to be generated (or the number of pilots corresponding to one time-frequency resource set), and c indicates the number of code domain resources included in the code domain resource set to which the code domain resource used by the terminal device belongs.

It should be noted that, when the time-frequency resource set to which the time-frequency resource used by the terminal device during uplink transmission belongs only includes one time-frequency resource, the parameter b may also be directly determined according to the number of pilots corresponding to the time-frequency resource (or the terminal device using the time-frequency resource), that is, the order of the Hadamard matrix is adjusted, so that the number of the generated orthogonal symbol sequences is greater than the number of pilots corresponding to the time-frequency resource.

And when the code domain resource set to which the code domain resource used by the terminal device in uplink transmission belongs only includes one code domain resource, the value of c is 1, so that under the condition that the symbol sequence sets corresponding to the terminal devices using different code domain resources are different, the feedback time-frequency resource corresponding to each terminal device can be determined according to the following formula:

RE_index∈[(CTU_index*a+Codebook_index)]*b～[(CTU_index*a+Codebook_index)+1]*b

similarly, the terminal device may also determine the corresponding feedback time-frequency resource by using a similar method and process, and here, detailed descriptions thereof are omitted to avoid redundancy.

For example, the network device may bear, on the feedback time-frequency resource, a symbol sequence corresponding to a terminal device whose feedback result is ACK among multiple terminal devices corresponding to the same feedback time-frequency resource, and send the symbol sequence.

Assuming that each code domain resource set includes one code domain resource, the terminal device using code domain resource #0 during uplink transmission is assumed to be terminal device # a (e.g., terminal device of corresponding pilot #0), terminal device # B (e.g., terminal device of corresponding pilot #1), and terminal device # C (e.g., terminal device of corresponding pilot # 4).

When only the uplink data corresponding to the terminal apparatus # a (or pilot #0) and the terminal apparatus # C (or pilot #4) is decoded successfully, the network apparatus may bear the symbol sequence (denoted as symbol sequence # a) corresponding to the terminal apparatus # a (or pilot #0) and the symbol sequence (denoted as symbol sequence # C) corresponding to the terminal apparatus # C (or pilot #4) on the feedback time-frequency resource # a after determining the feedback time-frequency resources (denoted as feedback time-frequency resources # a) corresponding to the terminal apparatus # a, the terminal apparatus # B, and the terminal apparatus # C.

The terminal device # a, the terminal device # B, and the terminal device # C may determine the feedback time-frequency resource # a, and receive information (i.e., formed by superimposing the symbol sequence # a and the symbol sequence # C) borne on the feedback time-frequency resource # a, and perform autocorrelation processing on the information according to the corresponding symbol sequence, after the autocorrelation processing, the terminal device # a and the terminal device # C may determine that the information carries the corresponding symbol sequence, and thus, may determine that a feedback result of the network device is ACK; the terminal device # B can determine that the information does not carry the symbol sequence corresponding thereto, and thus can determine that the feedback result of the network device is NACK.

Or, the network device may bear, on the feedback time-frequency resource, a symbol sequence corresponding to a terminal device whose feedback result is NACK among a plurality of terminal devices corresponding to the same feedback time-frequency resource, and send the symbol sequence.

The terminal device using code domain resource #0 at the time of uplink transmission is terminal device # a (e.g., terminal device of corresponding pilot #0), terminal device # B (e.g., terminal device of corresponding pilot #1), and terminal device # C (e.g., terminal device of corresponding pilot # 4).

When only the uplink data corresponding to the terminal apparatus # a (or pilot #0) and the terminal apparatus # C (or pilot #4) is decoded successfully, the network apparatus may bear the symbol sequence (denoted as symbol sequence # B) corresponding to the terminal apparatus # B (or pilot #1) on the feedback time-frequency resource # a after determining the feedback time-frequency resources (denoted as feedback time-frequency resources # a) corresponding to the terminal apparatus # a, the terminal apparatus # B, and the terminal apparatus # C.

The terminal device # a, the terminal device # B, and the terminal device # C may determine the feedback time-frequency resource # a, and receive information (i.e., constituted by a symbol sequence # C) borne on the feedback time-frequency resource # a, and perform autocorrelation processing on the information according to the symbol sequence corresponding to the information, after the autocorrelation processing, the terminal device # a and the terminal device # C may determine that the information does not carry a symbol sequence corresponding to the information, and thus, may determine that a feedback result of the network device is ACK; the terminal device # B can determine that the information carries the symbol sequence corresponding thereto, and thus can determine that the feedback result of the network device is NACK.

Case 2

In an embodiment of the present invention, a CTU access region set may include one or more CTU access regions.

In this case, one symbol sequence set corresponds to one CTU access region set, specifically, each element in one symbol sequence set corresponds to each element in one CTU access region set, where each element in one symbol sequence set is a plurality of symbol sequences orthogonal to each other in the symbol sequence set, and each element in one CTU access region set is a plurality of CTU access regions in one CTU access region set, that is, the symbol sequence set is configured in units of CTU access region sets, or when a plurality of CTU access regions are aligned with a plurality of pilots, a plurality of (part or all) orthogonal symbol sequences in the same symbol sequence set may also correspond to the pilots corresponding to the plurality of CTU access regions in the CTU access region set corresponding to the symbol sequence set one to one

For example, when only one CTU access region is included in one CTU access region set, the multiple pilots corresponding to the one CTU access region correspond to multiple symbol sequences in one symbol sequence set in a one-to-one manner.

For another example, when one CTU access region set includes multiple CTU access regions, pilots corresponding to the CTU access regions in the multiple CTU access regions correspond to multiple symbol sequences in one symbol sequence set one by one.

The generation method of the symbol sequence (or symbol sequence set) in case 2 is similar to that in case 1, and a detailed description thereof is omitted here for avoiding redundancy.

It should be noted that, when only one CTU access region is included in the CTU access region set, for example, if the code domain resource corresponding to each CTU access region is 6, and if the number of terminal devices (or pilots) corresponding to each code domain resource is 6, the requirement of one-to-one correspondence to the pilots can be met only by selecting 6 × 6 symbol sequences from the generated WASH sequence set, for example, the first 6 orthogonal sequences may be taken, and the sequence numbers and the pilots are mapped one by one.

When the CTU access region set includes a plurality of CTU access regions (e.g., 3), for example, if the code domain resource corresponding to each CTU access region is 6, and if the number of terminal devices (or pilots) corresponding to each code domain resource is 6, the requirement of one-to-one correspondence to the pilots can be satisfied by only selecting 3 × 6 × 6 symbol sequences from the generated WASH sequence set.

When a CTU access region is opposite to a symbol sequence set, the number of terminal devices using the CTU access region (or the number of pilots corresponding to the CTU access region) may be smaller than the number of symbol sequences in a symbol sequence set, and thus the symbol sequences in the symbol sequence set are not selected by any terminal device and are wasted. However, as described in the above paragraph, when 3 CTU access regions constitute a CTU access region set, the symbol sequence required is 3 × 6 × 6, and if a symbol sequence set includes 36 symbol sequences, the symbol sequences in a symbol sequence set can be used as much as possible.

In view of the above, according to the method for transmitting information in the embodiment of the present invention, a plurality of CTU access regions may form one CTU access region set, and the CTU access region set corresponds to one symbol sequence set, (for example, one CTU access region set includes that pilots corresponding to the CTU access regions correspond to the symbol sequences in one symbol sequence set in a one-to-one correspondence manner), so that the symbol sequences in the symbol sequence set can all be utilized, and transmission resources can be further saved.

And the network device may determine the feedback time-frequency resource corresponding to each terminal device.

For example, in the embodiment of the present invention, terminal devices using different CTU access region sets correspond to different symbol sequences for combination, and feedback time-frequency resources corresponding to terminal devices using different code domain resources are also different, so that feedback time-frequency resources corresponding to terminal devices using different code domain resources are different, and symbol sequences of terminal devices using the same code domain resource are orthogonal to each other, and can be borne on the same feedback time-frequency resource.

For example, but not limited to, when processing is performed in units of CTU access regions, the feedback time-frequency resource corresponding to each terminal device may be determined according to the following formula:

RE_index∈CTU_index*b～[CTU_index+1]*b

wherein RE_indexIndicating the feedback time frequency resource, TRB, corresponding to the terminal equipment_indexB may be determined according to the number of symbol sequences orthogonal to each other in a symbol sequence set (or the number of pilots corresponding to one code domain resource), for example, when a WASH sequence is used as the symbol sequence, b represents the order of a Hadamard matrix, and the order of the Hadamard matrix is according to the number of orthogonal symbol sequences required to be generatedThe number (or the number of pilots corresponding to one time-frequency resource set) is determined.

It should be noted that, when the time-frequency resource set to which the time-frequency resource used by the terminal device during uplink transmission belongs only includes one time-frequency resource, the parameter b may also be directly determined according to the number of pilots corresponding to the time-frequency resource (or the terminal device using the time-frequency resource), that is, the order of the Hadamard matrix is adjusted, so that the number of the generated orthogonal symbol sequences is greater than the number of pilots corresponding to the time-frequency resource.

Similarly, the terminal device may also determine the corresponding feedback time-frequency resource by using a similar method and process, and here, detailed descriptions thereof are omitted to avoid redundancy.

For example, the network device may bear, on the feedback time-frequency resource, a symbol sequence corresponding to a terminal device whose feedback result is ACK among multiple terminal devices corresponding to the same feedback time-frequency resource, and send the symbol sequence.

Or, the network device may bear, on the feedback time-frequency resource, a symbol sequence corresponding to a terminal device whose feedback result is NACK among a plurality of terminal devices corresponding to the same feedback time-frequency resource, and send the symbol sequence.

In case 2, the process of the network device sending the indication information of the feedback result and the terminal device determining the feedback result is similar to the process described in case 1, and here, detailed description thereof is omitted to avoid redundancy.

In the embodiment of the present invention, when a plurality of terminal devices select the same unlicensed transmission resource (e.g., pilot), their corresponding symbol sequences are also the same, and at this time, the ACK/NACK feedback may be erroneously detected, for example, when only one of the terminal devices successfully decodes uplink data, all the terminal devices detect the corresponding symbol sequence on the determined feedback time-frequency resource, and determine that the decoding is successful (or that the uplink transmission is successful). To avoid this, in the embodiment of the present invention, the terminal identifier of the terminal device indicating that the decoding is successful (or failed) may be carried in the determined feedback time-frequency resource.

That is, optionally, the indication information of the feedback result of the unlicensed transmission includes location information of a feedback time-frequency resource carrying the relevant identifier of the terminal device.

Specifically, in the embodiment of the present invention, the feedback time-frequency resource carries indication information (i.e., one or more symbol sequences) of the feedback result and indication information of the device identifier of the terminal device corresponding to the feedback result.

Fig. 7 is a schematic view of a feedback information structure carrying indication information of a feedback result and indication information of a device identifier of a terminal device corresponding to the feedback result according to an embodiment of the present invention.

As shown in fig. 7, the feedback information includes a portion for carrying the symbol sequence and a portion for carrying indication information of the device identifier of the terminal device corresponding to the feedback result.

In this embodiment of the present invention, the indication information of the device identifier of the terminal device corresponding to the feedback result may be used to indicate a position of the device identifier of the terminal device corresponding to the feedback result in a data packet (e.g., a downlink data packet transmitted through a downlink shared channel). Therefore, the terminal equipment can acquire the equipment identifier of the terminal equipment corresponding to the feedback result only by a small number of bits, and resources occupied by feedback information can be further saved.

In this case, for example, in the case of allocating a symbol sequence set in units of a code domain resource set to which a code domain resource used by the terminal device belongs, that is, the feedback time-frequency resource may be determined by the following formula:

and n is the size of the resource carrying the indication information of the equipment identifier of the terminal equipment corresponding to the feedback result.

Optionally, the feedback time-frequency resource is a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

According to the method for transmitting information of the embodiment of the invention, the network equipment determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission from the downlink time-frequency resource based on the time-frequency resource and the code domain resource used by the terminal equipment during the uplink transmission, and feeds back the uplink transmission in the feedback time-frequency resource, so that the feedback of the uplink transmission can be realized without resource scheduling.

The method for transmitting information according to the embodiment of the present invention is described in detail from the perspective of the network device in the above with reference to fig. 1 to 7, and the method for transmitting information according to the embodiment of the present invention is described from the perspective of the terminal device in the following with reference to fig. 8.

Fig. 8 shows a schematic flow chart of a method 400 of transmitting information according to an embodiment of the invention, described from the terminal device perspective, as shown in fig. 8, the method 400 comprising:

s410, the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to the time frequency resource and the code domain resource used in the uplink transmission;

s420, receiving the indication information of the feedback result for the uplink transmission through the feedback time-frequency resource.

Optionally, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates and informs the terminal device of multiple transmission resources in advance for the network device, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources allocated in advance by the network device, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to the time frequency resource and the code domain resource used in uplink transmission, and the method comprises the following steps:

and the terminal equipment determines the feedback time frequency resource corresponding to the terminal equipment from the authorization-free feedback area according to the time frequency resource and the code domain resource used in the uplink transmission.

Optionally, the code domain resource used by the terminal device according to the uplink transmission is specifically a code domain resource used by the terminal device according to the data portion during the uplink transmission.

Optionally, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

Optionally, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in the uplink transmission includes:

and the terminal equipment determines the feedback time frequency resource corresponding to the terminal equipment according to the index of the time frequency resource and the index of the code domain resource used in the uplink transmission.

Optionally, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in the uplink transmission includes:

the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set and a code domain resource to which the time frequency resource used in uplink transmission belongs, wherein the time frequency resource set comprises at least one time frequency resource.

Optionally, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in the uplink transmission includes:

the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a code domain resource set and a time frequency resource to which a code domain resource used in uplink transmission belongs, wherein the code domain resource set comprises at least one code domain resource.

Optionally, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in the uplink transmission includes:

the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set to which a time frequency resource used in uplink transmission belongs and a code domain resource set to which a code domain resource belongs, wherein the time frequency resource set comprises at least one time frequency resource, and the code domain resource set comprises at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is NACK, and

the method further comprises the following steps:

and performing relevant processing on the indication information of the feedback result of the uplink transmission according to the symbol sequence corresponding to the terminal equipment, and determining the feedback result of the uplink transmission according to the result of the relevant processing.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The method further comprises the following steps:

and determining a symbol sequence corresponding to the terminal equipment according to the pilot frequency used by the terminal equipment during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a feedback time-frequency resource carrying a relevant identifier of the terminal device, and

the method further comprises the following steps:

and determining that the relevant identifier of the terminal equipment is borne on the downlink time-frequency resource indicated by the position information.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, the terminal device is a user equipment.

The actions of the terminal device in the method 400 are similar to those of the terminal device in the method 200, and the actions of the network device in the method 400 are similar to those of the network device in the method 200, and thus, detailed descriptions thereof are omitted here for the sake of avoiding redundancy.

According to the method for transmitting information of the embodiment of the invention, the network equipment determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission from the downlink time-frequency resource based on the time-frequency resource and the code domain resource used by the terminal equipment during the uplink transmission, and feeds back the uplink transmission in the feedback time-frequency resource, so that the feedback of the uplink transmission can be realized without resource scheduling.

The method for transmitting information according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 8, and the apparatus for transmitting information according to the embodiment of the present invention is described in detail below with reference to fig. 9 to 10.

Fig. 9 shows a schematic block diagram of an apparatus 500 for transmitting information according to an embodiment of the present invention, and as shown in fig. 9, the apparatus 500 includes:

a determining unit 510, configured to determine, according to a time-frequency resource and a code domain resource used by a terminal device during uplink transmission, a feedback time-frequency resource corresponding to the terminal device;

a sending unit 520, configured to send, to the terminal device through the feedback time-frequency resource, indication information of a feedback result for the uplink transmission.

Optionally, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates and informs the terminal device of multiple transmission resources in advance, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources allocated in advance by the device, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the determining unit is specifically configured to determine, from the grant-free feedback region, a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource and a code domain resource used by the terminal device during uplink transmission.

Optionally, the code domain resource used by the terminal device in uplink transmission is specifically a code domain resource of a data portion used by the terminal device in uplink transmission.

Optionally, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

Optionally, the determining unit is specifically configured to determine the feedback time-frequency resource corresponding to the terminal device according to an index of a time-frequency resource and an index of a code domain resource used by the terminal device during uplink transmission.

Optionally, the determining unit is specifically configured to determine a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource set and a code domain resource to which a time-frequency resource used by the terminal device during uplink transmission belongs, where the time-frequency resource set includes at least one time-frequency resource.

Optionally, the determining unit is specifically configured to determine, according to a code domain resource set and a time-frequency resource to which a code domain resource used by the terminal device during uplink transmission belongs, a feedback time-frequency resource corresponding to the terminal device, where the code domain resource set includes at least one code domain resource.

Optionally, the determining unit is specifically configured to determine the feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource set to which a time-frequency resource used by the terminal device during uplink transmission belongs and a code domain resource set to which a code domain resource belongs, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The determining unit is further configured to determine a symbol sequence corresponding to the terminal device according to a pilot used by the terminal device during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying the relevant identifier of the terminal device.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, the apparatus is a base station, and the terminal device is a user equipment.

The apparatus 500 for transmitting information according to the embodiment of the present invention may correspond to a network device in the method according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the apparatus 500 for transmitting information are respectively for implementing the corresponding flow of the method 200 in fig. 2, and are not described herein again for brevity.

According to the information transmission device of the embodiment of the invention, the network equipment determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission from the downlink time-frequency resource based on the time-frequency resource and the code domain resource used by the terminal equipment during the uplink transmission, and feeds back the uplink transmission in the feedback time-frequency resource, so that the feedback of the uplink transmission can be realized without resource scheduling.

Fig. 10 shows a schematic block diagram of an apparatus 600 for transmitting information according to an embodiment of the present invention, and as shown in fig. 10, the apparatus 600 includes:

a determining unit 610, configured to determine a feedback time-frequency resource corresponding to the apparatus according to a time-frequency resource and a code domain resource used in uplink transmission;

a receiving unit 620, configured to receive, through the feedback time-frequency resource, indication information of a feedback result for the uplink transmission.

Optionally, the uplink transmission is an unlicensed transmission, where the unlicensed transmission is obtained by pre-allocating and informing multiple transmission resources to the network device, so that when the device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources pre-allocated by the network device, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the determining unit is specifically configured to determine, according to the time-frequency resource and the code domain resource used during uplink transmission, a feedback time-frequency resource corresponding to the device from the grant-free feedback region.

Optionally, the code domain resource used by the apparatus in uplink transmission is specifically a code domain resource of a data portion used by the apparatus in uplink transmission.

Optionally, the time-frequency resource used by the device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the device during uplink transmission.

Optionally, the determining unit is specifically configured to determine the feedback time-frequency resource corresponding to the device according to an index of a time-frequency resource and an index of a code domain resource used during uplink transmission.

Optionally, the determining unit is specifically configured to determine, according to a time-frequency resource set and a code domain resource to which a time-frequency resource used in uplink transmission belongs, a feedback time-frequency resource corresponding to the device, where the time-frequency resource set includes at least one time-frequency resource.

Optionally, the determining unit is specifically configured to determine, according to a code domain resource set and a time-frequency resource to which a code domain resource used in uplink transmission belongs, a feedback time-frequency resource corresponding to the device, where the code domain resource set includes at least one code domain resource.

Optionally, the determining unit is specifically configured to determine, according to a time-frequency resource set to which a time-frequency resource used in uplink transmission belongs and a code domain resource set to which a code domain resource belongs, a feedback time-frequency resource corresponding to the device, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the device, the symbol sequence corresponding to the device belongs to a symbol sequence set including at least two orthogonal symbol sequences, the symbol sequence corresponding to the device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK, and

the determining unit is further configured to perform correlation processing on the indication information of the feedback result of the uplink transmission according to the symbol sequence corresponding to the device, and determine the feedback result of the uplink transmission according to a result of the correlation processing.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The determining unit is further configured to determine a symbol sequence corresponding to the device according to a pilot used by the device during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a feedback time-frequency resource carrying a relevant identifier of the device, and

the determining unit is further configured to determine that the relevant identifier of the device is carried on the downlink time-frequency resource indicated by the location information.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, the apparatus is a user equipment.

The apparatus 600 for transmitting information according to the embodiment of the present invention may correspond to a terminal device in the method according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the apparatus 600 for transmitting information are respectively for implementing the corresponding flow of the method 400 in fig. 8, and are not described herein again for brevity.

According to the information transmission device of the embodiment of the invention, the network equipment determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission from the downlink time-frequency resource based on the time-frequency resource and the code domain resource used by the terminal equipment during the uplink transmission, and feeds back the uplink transmission in the feedback time-frequency resource, so that the feedback of the uplink transmission can be realized without resource scheduling.

The method for transmitting information according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 8, and the apparatus for transmitting information according to the embodiment of the present invention is described in detail below with reference to fig. 11 to 12.

Fig. 11 shows a schematic block diagram of an apparatus 700 for transmitting information according to an embodiment of the present invention, and as shown in fig. 11, the apparatus 700 includes: a processor 710 and a transmitter 720, the processor 710 and the transmitter 720 being coupled, optionally the device 700 further comprising a memory 730, the memory 730 being coupled to the processor 710, further optionally the device 700 comprising a bus system 740. Wherein, the processor 710, the memory 720 and the transmitter 730 can be connected via a bus system 740, the memory 730 can be used for storing instructions, and the processor 710 is used for executing the instructions stored in the memory 730 to control the transmitter 720 to transmit information or signals;

a processor 710, configured to determine, according to a time-frequency resource and a code domain resource used by a terminal device during uplink transmission, a feedback time-frequency resource corresponding to the terminal device;

and the indication information is used for controlling the transmitter 720 to transmit the feedback result for the uplink transmission to the terminal device through the feedback time-frequency resource.

Optionally, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates and informs the terminal device of multiple transmission resources in advance, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources allocated in advance by the device, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the processor is specifically configured to determine, from the grant-free feedback region, a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource and a code domain resource used by the terminal device during uplink transmission.

Optionally, the code domain resource used by the terminal device in uplink transmission is specifically a code domain resource of a data portion used by the terminal device in uplink transmission.

Optionally, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

Optionally, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the terminal device according to an index of a time-frequency resource and an index of a code domain resource used by the terminal device during uplink transmission.

Optionally, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource set and a code domain resource to which a time-frequency resource used by the terminal device during uplink transmission belongs, where the time-frequency resource set includes at least one time-frequency resource.

Optionally, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the terminal device according to a code domain resource set and a time-frequency resource to which a code domain resource used by the terminal device during uplink transmission belongs, where the code domain resource set includes at least one code domain resource.

Optionally, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource set to which a time-frequency resource used by the terminal device during uplink transmission belongs and a code domain resource set to which a code domain resource belongs, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The processor is further configured to determine a symbol sequence corresponding to the terminal device according to a pilot used by the terminal device during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying the relevant identifier of the terminal device.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, the apparatus 700 is a base station.

It should be understood that, in the embodiment of the present invention, the processor 710 may be a Central Processing Unit (CPU), and the processor 710 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 730 may include both read-only memory and random access memory, and provides instructions and data to the processor 710. A portion of memory 730 may also include non-volatile random access memory. For example, memory 730 may also store device type information.

The bus system 740 may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. For clarity of illustration, the various buses are designated in the figure as the bus system 740.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 710. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 730, and the processor 710 reads the information in the memory 730 and performs the steps of the above method in combination with the hardware thereof. To avoid repetition, it is not described in detail here.

The device 700 for transmitting information according to the embodiment of the present invention may correspond to a network device in the method according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the device 700 for transmitting information are respectively for implementing the corresponding flow of the method 200 in fig. 2, and are not described herein again for brevity.

According to the information transmission device of the embodiment of the invention, the network device determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission from the downlink time-frequency resource based on the time-frequency resource and the code domain resource used by the terminal device during the uplink transmission, and feeds back the uplink transmission in the feedback time-frequency resource, so that the feedback of the uplink transmission can be realized without resource scheduling.

Fig. 12 shows a schematic block diagram of a transmission information device 800 according to an embodiment of the present invention, as shown in fig. 12, the device 800 comprising: a processor 810 and a receiver 820, the processor 810 being coupled to the receiver 820, optionally the device 800 further comprising a memory 830, the memory 830 being coupled to the processor 810, further optionally the device 800 comprising a bus system 840. Wherein the processor 810, the memory 830, and the receiver 820 may be coupled via a bus system 840, the memory 830 may be configured to store instructions, and the processor 810 is configured to execute the instructions stored by the memory 830 to control the receiver 820 to receive information or signals;

a processor 810, configured to determine, according to a time-frequency resource and a code domain resource used in uplink transmission, a feedback time-frequency resource corresponding to the device;

and the indication information is used to control the receiver 820 to receive the feedback result for the uplink transmission through the feedback time-frequency resource.

Optionally, the uplink transmission is an unlicensed transmission, where the unlicensed transmission is obtained by pre-allocating and informing multiple transmission resources to the network device, so that when the device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources pre-allocated by the network device, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the processor is specifically configured to determine, from the grant-free feedback region, a feedback time-frequency resource corresponding to the device according to a time-frequency resource and a code domain resource used during uplink transmission.

Optionally, the code domain resource used by the device in uplink transmission is a code domain resource used by the data portion in uplink transmission by the device.

Optionally, the time-frequency resource used by the device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the device during uplink transmission.

Optionally, the processor is specifically configured to determine, according to an index of a time-frequency resource and an index of a code domain resource used in uplink transmission, a feedback time-frequency resource corresponding to the device.

Optionally, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the device according to a time-frequency resource set and a code domain resource to which a time-frequency resource used in uplink transmission belongs, where the time-frequency resource set includes at least one time-frequency resource.

Optionally, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the device according to a code domain resource set and a time-frequency resource to which a code domain resource used in uplink transmission belongs, where the code domain resource set includes at least one code domain resource.

Optionally, the processor is specifically configured to determine a feedback time-frequency resource corresponding to the device according to a time-frequency resource set to which a time-frequency resource used in uplink transmission belongs and a code domain resource set to which a code domain resource belongs, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the device, the symbol sequence corresponding to the device belongs to a symbol sequence set including at least two orthogonal symbol sequences, the symbol sequence corresponding to the device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK, and

the processor is further configured to perform correlation processing on the indication information of the feedback result of the uplink transmission according to the symbol sequence corresponding to the device, and determine the feedback result of the uplink transmission according to a result of the correlation processing.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The processor is further configured to determine a symbol sequence corresponding to the device according to a pilot used by the device during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a feedback time-frequency resource carrying a relevant identifier of the device, and

the processor is further configured to determine that the identifier associated with the device is carried on the downlink time-frequency resource indicated by the location information.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, the device 800 is a terminal device.

The device 800 for transmitting information according to the embodiment of the present invention may correspond to a terminal device in the method according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the device 800 for transmitting information are respectively for implementing the corresponding flow of the method 400 in fig. 8, and are not described herein again for brevity.

According to the information transmission device of the embodiment of the invention, the network device determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission from the downlink time-frequency resource based on the time-frequency resource and the code domain resource used by the terminal device during the uplink transmission, and feeds back the uplink transmission in the feedback time-frequency resource, so that the feedback of the uplink transmission can be realized without resource scheduling.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

For brevity and clarity of the application, technical features and descriptions in one embodiment may be applied to other embodiments, for example, technical features of a method embodiment may be applied to an apparatus embodiment or other method embodiments, and are not described in detail in other embodiments.

The sending module, sending unit, or sender in the above embodiments may refer to sending on an air interface, and may send to other devices so that the other devices send on the air interface instead of sending on the air interface. The receiving module, the receiving unit, or the receiver in the above embodiments may refer to receiving over an air interface, or may receive over another device that receives over an air interface instead of receiving over an air interface.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only an 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 conceive of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Fig. 13 shows a schematic flow chart of a method 900 of transmitting information according to an embodiment of the invention, described from the perspective of a network device. As shown in fig. 13, the method 900 includes:

s910, the network device determines a feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device;

and S920, sending indication information of a feedback result aiming at uplink transmission to the terminal equipment through the feedback time frequency resource.

Similar to the method 200, the network device may send information to the terminal device in a broadcast manner, a directional manner, or other manners.

Also, similar to the method 200 described above, the uplink transmission may be an unlicensed transmission.

Without loss of generality, the method 900 will be described in detail below, taking the feedback procedure for the terminal apparatus # a among the plurality of terminal apparatuses as an example, for ease of understanding and distinction.

First, a description is given of "relevant identifier of terminal device" in the embodiment of the present invention.

In the embodiment of the present invention, the identifier associated with the terminal device may be an identifier for identifying the terminal device. That is, in the embodiment of the present invention, the network device may communicate with N terminal devices, or the network device may provide communication services for the N terminal devices, and the correlation identifiers of the N devices are different from each other, so that the network device can determine one terminal device (for example, terminal device # a) according to the correlation identifier (for example, correlation identifier # a) of the terminal device.

For example, and not by way of limitation, in the embodiment of the present invention, the relevant identifier of the terminal device may be that allocated to the terminal device by the Network device (e.g., at the time of access of the terminal device), and for example, the relevant identifier of the terminal device may be a Radio Network Temporary Identifier (RNTI) allocated to the terminal device by the Network device.

For another example, in the embodiment of the present invention, the relevant identifier of the terminal device may also be allocated to the terminal device by the network operator, for example, the relevant identifier of the terminal device may be a mobile phone number.

For another example, in the embodiment of the present invention, the identifier related to the terminal device may also be an identifier that is specified by a manufacturer or a communication standard protocol and can distinguish the terminal device in the communication network, for example, the identifier related to the terminal device may be a Media Access Control (MAC) address of the terminal device, or a global unique identifier guid (global unique identifier) or an International Mobile Equipment Identity (IMEI) of the terminal device.

It should be understood that the specific parameters or information listed above as the relevant identifiers of the terminal devices are only exemplary, the present invention is not limited thereto, and other parameters or information capable of identifying one terminal device fall within the protection scope of the present invention.

At S910, the network device may determine, according to the transmission resource (e.g., transmission resource # a) used by the terminal device # a, a feedback time-frequency resource (i.e., feedback time-frequency resource, hereinafter, referred to as feedback time-frequency resource # a for easy understanding and distinction) corresponding to the relevant identifier of the terminal device # a (hereinafter, referred to as relevant identifier # a for easy understanding and distinction) based on a preset mapping rule (e.g., formula or table entry, hereinafter, referred to as mapping rule # a for easy understanding and distinction) for indicating a corresponding relationship between each transmission resource and the relevant identifier of each terminal device # a.

For example, as an example and not by way of limitation, the mapping relationship # a may record an entry of a one-to-one mapping relationship between the correlation identifiers of the plurality of terminal devices (including the correlation identifier # a) and the plurality of feedback time-frequency resources (including the feedback time-frequency resource # a).

Table 6 below shows an example of the table entry of the mapping relationship.

TABLE 6

Correlation identification # A	Feedback time-frequency resource # a
		Correlation identification # B	Feedback time-frequency resource # b
……	……
		Correlation identifier # X	Feedback time-frequency resource # x

Accordingly, the network device may look up, based on the correlation identifier # a, a feedback time-frequency resource (e.g., feedback time-frequency resource # a shown in table 6) corresponding to the correlation identifier # a in the entry as the feedback time-frequency resource # a.

For another example, but not by way of limitation, the feedback time-frequency resource corresponding to each terminal device may be determined according to the following formula:

RE_index∈[f₂(ID)]*d～[f₂(ID)+1]*d

wherein RE_indexRepresenting feedback time frequency resources corresponding to the terminal equipment, ID representing the relevant identification of the terminal equipment, f₂And d can be determined according to the size of the feedback resource required by one terminal device.

Optionally, the network device determines, according to the terminal device-related identifier, a feedback time-frequency resource corresponding to the terminal device, where the feedback time-frequency resource may be:

and the network equipment determines the feedback time-frequency resource according to the time-frequency resource used by the terminal equipment during the uplink transmission and the relevant identification of the terminal equipment.

For example, as an example and not by way of limitation, the mapping relation # a may record an entry of a one-to-one mapping relation between a plurality of parameter sets and a plurality of feedback time-frequency resources (including the feedback time-frequency resource # a).

Each parameter set includes an uplink time-frequency resource (i.e., a time-frequency resource used in uplink transmission) and a correlation identifier, where at least one of the uplink time-frequency resource and the correlation identifier is different between any two parameter sets.

Therefore, the network device or the terminal device # a may search, according to the uplink time-frequency resource used by the terminal device # a and the parameter set (denoted as parameter set # a) to which the relevant identifier belongs, the time-frequency resource corresponding to the parameter set # a and indicated by the mapping rule # a, as a feedback time-frequency resource (i.e., a feedback time-frequency resource) for performing feedback for the terminal device # a.

For another example, but not by way of limitation, the feedback time-frequency resource corresponding to each terminal device may be determined according to the following formula:

RE_index∈[f₄(ID，CTU_index)]*b～[f₄(ID，CTU_index)+1]*b

wherein RE_indexRepresenting feedback time frequency resources corresponding to the terminal equipment, ID representing the relevant identification of the terminal equipment, CTU_indexB may be determined according to the number of symbol sequences orthogonal to each other in a symbol sequence set (or the number of pilots corresponding to one code domain resource). For example, when the WASH sequence is used as the symbol sequence, b represents the order of the Hadamard matrix, and the order of the Hadamard matrix is determined according to the number of orthogonal symbol sequences (or the number of pilots corresponding to one time-frequency resource set) that need to be generated. f. of₄A mapping function for feedback time-frequency resources, i.e. f, representing a joint determination of the correlation identifier of the terminal device and the uplink time-frequency resources₄As a function of variables of the terminal equipment's associated identity and uplink resources.

Optionally, the network device determines, according to the terminal device-related identifier, a feedback time-frequency resource corresponding to the terminal device, where the feedback time-frequency resource may be:

and the network equipment determines the feedback time-frequency resource according to the code domain resource used by the terminal equipment during the uplink transmission and the relevant identifier of the terminal equipment.

For example, as an example and not by way of limitation, the mapping relation # a may record an entry of a one-to-one mapping relation between a plurality of parameter sets and a plurality of feedback time-frequency resources (including the feedback time-frequency resource # a).

Each parameter set includes a code domain resource (i.e., a code domain resource used in uplink transmission) and a correlation identifier, where at least one of the code domain resource and the correlation identifier is different between any two parameter sets.

Thus, the network device or the terminal device # a may search, according to the code domain resource used by the terminal device # a and the parameter set (denoted as parameter set # a) to which the relevant identifier belongs, the time-frequency resource corresponding to the parameter set # a and indicated by the mapping rule # a, as a feedback time-frequency resource (i.e., a feedback time-frequency resource) for performing feedback for the terminal device # a.

For another example, but not by way of limitation, the feedback time-frequency resource corresponding to each terminal device may be determined according to the following formula:

RE_index∈[f₁(ID，Codebook_index)]*b～[f₁(ID，Codebook_index)+1]*b

wherein RE_indexRepresenting feedback time frequency resources corresponding to the terminal equipment, ID representing the relevant identification of the terminal equipment, Codebook_indexAn index indicating a code domain resource (e.g., codebook) used by the terminal device, b may be determined according to the number of symbol sequences orthogonal to each other in a symbol sequence set (or the number of pilots corresponding to one code domain resource). For example, when the WASH sequence is used as the symbol sequence, b represents the order of a Hadamard matrix, and the order of the Hadamard matrix depends on the number of orthogonal symbol sequences to be generated (or, in other words, one time-frequency sequence)The number of pilots corresponding to the resource set). f. of₁A mapping function for feedback time-frequency resources, i.e. f, representing a joint determination of the correlation identity of the terminal device and the code domain resources₁Is a function with the relevant identification and code domain resource of the terminal device as variables.

Optionally, the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the terminal device-related identifier includes:

and the network equipment determines the feedback time-frequency resource according to the time-domain resource and the code-domain resource used by the terminal equipment during the uplink transmission and the relevant identification of the terminal equipment.

That is, the mapping rule # a may record a mapping relationship between each parameter set and each feedback time-frequency resource.

Each parameter set includes an uplink time-frequency resource (i.e., a time-frequency resource used in uplink transmission), a code domain resource (i.e., a code domain resource used in uplink transmission), and a correlation identifier, and at least one of the uplink time-frequency resource, the code domain resource, and the correlation identifier is different between any two parameter sets.

Thus, the network device or the terminal device # a may search, according to the uplink time-frequency resource, the code domain resource and the parameter set (denoted as parameter set # a) to which the relevant identifier belongs, the time-frequency resource corresponding to the parameter set # a indicated by the mapping rule # a, as a feedback time-frequency resource (i.e., a feedback time-frequency resource) for performing feedback for the terminal device # a.

For another example, but not by way of limitation, the feedback time-frequency resource corresponding to each terminal device may be determined according to the following formula:

RE_index∈[f₃(ID，CTU_index，Codebook_index)]*b～[f₃(ID，CTU_index，Codebook_index)+1]*b

wherein RE_indexRepresenting feedback time frequency resources corresponding to the terminal equipment, ID representing the relevant identification of the terminal equipment, Codebook_indexPresentation terminalIndex of code domain resource (e.g. codebook) used by end device, CTU_indexThe index indicates a time-frequency resource (which may also be referred to as an uplink time-frequency resource, for example, an index of a CTU access region corresponding to a CTU used by the terminal device) used by the terminal device when performing uplink transmission (for example, unlicensed transmission). b may be determined according to the number of symbol sequences orthogonal to each other in a symbol sequence set (or the number of pilots corresponding to one code domain resource). For example, when the WASH sequence is used as the symbol sequence, b represents the order of the Hadamard matrix, and the order of the Hadamard matrix is determined according to the number of orthogonal symbol sequences (or the number of pilots corresponding to one time-frequency resource set) that need to be generated. f. of₃A mapping function for feedback time-frequency resources, i.e. f, representing a joint determination of the correlation identity, code domain resources and uplink time-frequency resources of the terminal device₃The method is a function taking the relevant identification of the terminal equipment, the code domain resource and the uplink time domain resource as variables.

Similarly, the terminal device # a may determine the feedback time-frequency resource # a according to the mapping rule # a.

By using the same mapping rule for the network device and the terminal device, the feedback time-frequency resources determined by the network device and the terminal device can be the same, so that the reliability of feedback can be ensured.

Optionally, similar to the method 200 described above, the feedback time-frequency resource # a may belong to an unlicensed feedback region in a downlink time-frequency resource.

Or, in the embodiment of the present invention, the feedback time-frequency resource # a may belong to an authorization region or a downlink transmission region in a downlink time-frequency resource, and in the embodiment of the present invention, a process and a method for performing feedback for authorized uplink transmission by using a time-frequency resource in the authorization region may be similar to those of the prior art, and a process and a method for performing downlink transmission by using a time-frequency resource in the downlink transmission region may be similar to those of the prior art, and here, detailed descriptions thereof are omitted to avoid redundancy.

Similar to the method 200, in the embodiment of the present invention, the transmission resource used in the uplink transmission may be a transmission resource used by the data portion in the uplink transmission.

In addition, as described above, the transmission resources may include time domain resources, frequency domain resources, spatial domain resources, code domain resources, and the like, and the network device or the terminal device may use the time frequency resources and the code domain resources therein to determine the feedback time frequency resources.

Similar to the method 200, in the embodiment of the present invention, the time-frequency resource used by the terminal device during uplink transmission may be a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

After determining the feedback time-frequency resource, in S920, the network device may send feedback information (i.e., an example of indication information of the feedback result of the uplink transmission, for example, ACK information or NACK information) for the terminal device # a on the feedback time-frequency resource, and the terminal device # a receives the feedback information on the feedback time-frequency resource.

In this embodiment of the present invention, the ACK information may indicate that the network device detects a pilot used by the terminal device during uplink transmission, and the network device successfully decodes the data portion of the uplink transmission.

Moreover, in the embodiment of the present invention, the NACK information may indicate that the network device does not detect the pilot used by the terminal device in the uplink transmission, and the network device does not successfully decode the data part of the uplink transmission.

Alternatively, in the embodiment of the present invention, the NACK information may indicate that the network device detects a pilot used by the terminal device in uplink transmission, but the network device does not successfully decode the data part of the uplink transmission.

Moreover, in the embodiment of the present invention, the specific form, included content, and feedback process of the feedback information may be similar to those described in the above method 200, and here, detailed descriptions thereof are omitted to avoid redundancy.

For example, similar to the method 200 described above, optionally, in the embodiment of the present invention, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK. And optionally, the feedback information includes a part for carrying the symbol sequence and a part for carrying indication information of a relevant identifier of the terminal device corresponding to the feedback result.

That is, the difference between the method 900 and the method 200 is that the network device and the terminal device can determine the feedback time-frequency resource based on the correlation identifier of the terminal device, or the network device and the terminal device can determine the feedback time-frequency resource based on the correlation identifier of the terminal device and the time-frequency resource used in uplink transmission, or the network device and the terminal device can determine the feedback time-frequency resource based on the correlation identifier of the terminal device and the code domain resource used in uplink transmission, or the network device and the terminal device can determine the feedback time-frequency resource based on the correlation identifier of the terminal device, the time-frequency resource used in uplink transmission, and the code domain resource, other steps or processing methods of the method 900 may be similar to the method 200, and detailed descriptions thereof are omitted herein to avoid redundancy.

Optionally, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates and informs the terminal device of multiple transmission resources in advance for the network device, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources allocated in advance by the network device, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the network device determines, according to the relevant identifier of the terminal device, a feedback time-frequency resource corresponding to the terminal device, which may be:

and the network equipment determines the feedback time-frequency resource from the authorization-free feedback area according to the relevant identification of the terminal equipment.

Further optionally, the network device determines the feedback time-frequency resource from the unlicensed feedback area according to the time-frequency resource used by the terminal device during the uplink transmission and the identifier related to the terminal device.

Further optionally, the network device determines the feedback time-frequency resource from the authorization-free feedback area according to the code domain resource used by the terminal device during the uplink transmission and the identifier related to the terminal device.

Further optionally, the network device determines the feedback time-frequency resource according to a time-domain resource, a code-domain resource and a relevant identifier of the terminal device, where the time-domain resource and the code-domain resource are used by the terminal device during the uplink transmission.

Optionally, the code domain resource used by the terminal device in uplink transmission is a code domain resource used by the data portion in uplink transmission by the terminal device.

Optionally, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

Optionally, the determining, by the network device, the feedback time-frequency resource according to the time-domain resource, the code-domain resource, and the identifier related to the terminal device, where the time-domain resource and the code-domain resource are used by the terminal device during the uplink transmission includes:

and the network equipment determines the feedback time frequency resource according to the index of the time frequency resource used by the terminal equipment during uplink transmission, the index of the code domain resource and the relevant identification of the terminal equipment.

Optionally, the determining, by the network device, the feedback time-frequency resource according to the time-domain resource, the code-domain resource, and the identifier related to the terminal device, where the time-domain resource and the code-domain resource are used by the terminal device during the uplink transmission includes:

the network device determines the feedback time frequency resource according to a time frequency resource set, a code domain resource and a relevant identifier of the terminal device, wherein the time frequency resource set is used by the terminal device during uplink transmission, and comprises at least one time frequency resource.

Optionally, the determining, by the network device, the feedback time-frequency resource according to the time-domain resource, the code-domain resource, and the identifier related to the terminal device, where the time-domain resource and the code-domain resource are used by the terminal device during the uplink transmission includes:

the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a code domain resource set, a time frequency resource and a relevant identifier of the terminal equipment, wherein the code domain resource set used by the terminal equipment during uplink transmission belongs to the code domain resource set, the time frequency resource and the relevant identifier of the terminal equipment, and the code domain resource set comprises at least one code domain resource.

Optionally, the determining, by the network device, the feedback time-frequency resource according to the time-domain resource, the code-domain resource, and the identifier related to the terminal device, where the time-domain resource and the code-domain resource are used by the terminal device during the uplink transmission includes:

the network device determines a feedback time frequency resource corresponding to the terminal device according to a time frequency resource set to which the time frequency resource used by the terminal device in uplink transmission belongs, a code domain resource set to which the code domain resource belongs, and a relevant identifier of the terminal device, wherein the time frequency resource set comprises at least one time frequency resource, and the code domain resource set comprises at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The method further comprises the following steps:

and determining a symbol sequence corresponding to the terminal equipment according to the pilot frequency used by the terminal equipment during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying the relevant identifier of the terminal device.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, when the feedback result of the uplink transmission is a non-acknowledgement NACK, it indicates:

the network device detects a pilot used by the terminal device during uplink transmission, and the network device fails to decode the data portion of the uplink transmission.

According to the method for transmitting information of the embodiment of the invention, the network equipment determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission based on the relevant identification of the terminal equipment, and feeds back the uplink transmission in the feedback time-frequency resource, so that the feedback of the uplink transmission can be realized without resource scheduling.

Fig. 14 shows a schematic flow chart of a method 1000 of transmitting information according to an embodiment of the invention, described from the terminal device perspective, as shown in fig. 14, the method 1000 comprising:

s1010, the terminal equipment determines a feedback time-frequency resource corresponding to the terminal equipment according to the relevant identification of the terminal equipment;

s1020, receiving indication information of a feedback result for uplink transmission through the feedback time-frequency resource.

Optionally, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device includes:

and the terminal equipment determines the feedback time frequency resource according to the time frequency resource used in the uplink transmission and the relevant identification of the terminal equipment.

Optionally, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device includes:

and the terminal equipment determines the feedback time frequency resource according to the code domain resource used in the uplink transmission and the relevant identifier of the terminal equipment.

Optionally, the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the relevant identifier of the terminal device includes:

and the terminal equipment determines the feedback time-frequency resource according to the time-domain resource and the code-domain resource used in the uplink transmission and the relevant identification of the terminal equipment.

Optionally, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates and informs the terminal device of multiple transmission resources in advance for the network device, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the multiple transmission resources allocated in advance by the network device, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the terminal equipment determines a feedback time-frequency resource corresponding to the terminal equipment according to the relevant identification of the terminal equipment, and the method comprises the following steps:

and the terminal equipment determines the feedback time-frequency resource from the authorization-free feedback area according to the relevant identifier of the terminal equipment.

Optionally, the code domain resource used by the terminal device in uplink transmission is a code domain resource used by the data portion in uplink transmission by the terminal device.

Optionally, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

Optionally, the determining, by the terminal device, the feedback time-frequency resource according to the time-domain resource, the code-domain resource and the identifier related to the terminal device, which are used during the uplink transmission, includes:

and the terminal equipment determines the feedback time frequency resource according to the index of the time frequency resource used in the uplink transmission, the index of the code domain resource and the relevant identification of the terminal equipment.

Optionally, the determining, by the terminal device, the feedback time-frequency resource according to the time-domain resource, the code-domain resource and the identifier related to the terminal device, which are used during the uplink transmission, includes:

the terminal device determines the feedback time frequency resource according to a time frequency resource set, a code domain resource and a relevant identifier of the terminal device, wherein the time frequency resource set used in uplink transmission belongs to the time frequency resource set, the code domain resource and the relevant identifier of the terminal device, and the time frequency resource set comprises at least one time frequency resource.

Optionally, the determining, by the terminal device, the feedback time-frequency resource according to the time-domain resource, the code-domain resource and the identifier related to the terminal device, which are used during the uplink transmission, includes:

the terminal equipment determines a feedback time-frequency resource corresponding to the terminal equipment according to a code domain resource set, a time-frequency resource and a relevant identifier of the terminal equipment, wherein the code domain resource set used in uplink transmission belongs to the code domain resource set, the time-frequency resource and the relevant identifier of the terminal equipment, and the code domain resource set comprises at least one code domain resource.

Optionally, the determining, by the terminal device, the feedback time-frequency resource according to the time-domain resource, the code-domain resource and the identifier related to the terminal device, which are used during the uplink transmission, includes:

the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set to which the time frequency resource used in uplink transmission belongs, a code domain resource set to which the code domain resource belongs and a relevant identifier of the terminal equipment, wherein the time frequency resource set comprises at least one time frequency resource, and the code domain resource set comprises at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is NACK, and

the method further comprises the following steps:

and performing relevant processing on the indication information of the feedback result of the uplink transmission according to the symbol sequence corresponding to the terminal equipment, and determining the feedback result of the uplink transmission according to the result of the relevant processing.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The method further comprises the following steps:

and determining a symbol sequence corresponding to the terminal equipment according to the pilot frequency used by the terminal equipment during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying the relevant identifier of the terminal device, and

the method further comprises the following steps:

and determining that the relevant identifier of the terminal equipment is borne on the downlink time-frequency resource indicated by the position information.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, when the feedback result of the uplink transmission is a non-acknowledgement NACK, it indicates:

the network device detects the pilot used by the terminal device in uplink transmission, and the network device fails to decode the data part of the uplink transmission.

The actions of the terminal device in the method 1000 are similar to those of the terminal device in the method 900, and the actions of the network device in the method 1000 are similar to those of the network device in the method 900, and here, detailed descriptions thereof are omitted to avoid redundancy.

According to the method for transmitting information of the embodiment of the invention, the network equipment determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission based on the relevant identification of the terminal equipment, and feeds back the uplink transmission in the feedback time-frequency resource, so that the feedback of the uplink transmission can be realized without resource scheduling.

Fig. 15 shows a schematic block diagram of an apparatus 1100 for transmitting information according to an embodiment of the present invention, and as shown in fig. 15, the apparatus 1100 includes:

a determining unit 1110, configured to determine, according to the relevant identifier of the terminal device, a feedback time-frequency resource corresponding to the terminal device;

a sending unit 1120, configured to send, to the terminal device, indication information of a feedback result for uplink transmission through the feedback time-frequency resource.

Optionally, the determining unit 1110 is configured to determine the feedback time-frequency resource according to the time-frequency resource used by the terminal device during the uplink transmission and the relevant identifier of the terminal device.

Optionally, the determining unit 1110 is configured to determine the feedback time-frequency resource according to a code domain resource used by the terminal device during the uplink transmission and a relevant identifier of the terminal device.

Optionally, the determining unit 1110 is configured to determine the feedback time-frequency resource according to the time-domain resource, the code-domain resource, and the identifier of the terminal device, where the time-domain resource and the code-domain resource are used by the terminal device during the uplink transmission.

Optionally, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates in advance to the apparatus 1100 and informs the terminal device of a plurality of transmission resources, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the plurality of transmission resources allocated in advance by the apparatus 1100, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the determining unit 1110 is configured to determine the feedback time-frequency resource from the unlicensed feedback area according to the relevant identifier of the terminal device.

Optionally, the code domain resource used by the terminal device in uplink transmission is a code domain resource used by the data portion in uplink transmission by the terminal device.

Optionally, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

Optionally, the determining unit 1110 is configured to determine the feedback time-frequency resource according to an index of a time-frequency resource used by the terminal device during uplink transmission, an index of a code domain resource, and a relevant identifier of the terminal device.

Optionally, the determining unit 1110 is configured to determine the feedback time-frequency resource according to a time-frequency resource set, a code domain resource, and a relevant identifier of the terminal device, where the time-frequency resource used by the terminal device during uplink transmission belongs to the time-frequency resource set, and the code domain resource and the relevant identifier of the terminal device, where the time-frequency resource set includes at least one time-frequency resource.

Optionally, the determining unit 1110 is configured to determine, according to a code domain resource set to which a code domain resource used by the terminal device during uplink transmission belongs, a time-frequency resource, and a relevant identifier of the terminal device, a feedback time-frequency resource corresponding to the terminal device, where the code domain resource set includes at least one code domain resource.

Optionally, the determining unit 1110 is configured to determine a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource set to which a time-frequency resource used by the terminal device during uplink transmission belongs, a code domain resource set to which a code domain resource belongs, and a related identifier of the terminal device, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The determining unit 1110 is configured to determine a symbol sequence corresponding to the terminal device according to a pilot used by the terminal device during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying the relevant identifier of the terminal device.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, when the feedback result of the uplink transmission is a non-acknowledgement NACK, it indicates:

the apparatus 1100 detects a pilot used by the terminal device in uplink transmission, and the apparatus 1100 fails to decode the data portion of the uplink transmission.

Optionally, the apparatus 1100 is a base station, and the terminal device is a user equipment.

The apparatus 1100 for transmitting information according to the embodiment of the present invention may correspond to the network device in the method 900 according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the apparatus 1100 for transmitting information are respectively for implementing the corresponding flow of the method 900 in fig. 13, and are not described herein again for brevity.

According to the information transmission device in the embodiment of the invention, the network equipment and the terminal equipment determine the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission based on the relevant identifier of the terminal equipment, and perform feedback aiming at the uplink transmission on the feedback time-frequency resource, so that the feedback aiming at the uplink transmission can be realized without resource scheduling.

Fig. 16 shows a schematic block diagram of an apparatus 1200 for transmitting information according to an embodiment of the present invention, and as shown in fig. 16, the apparatus 1200 includes:

a determining unit 1210, configured to determine, according to the relevant identifier of the apparatus 1200, a feedback time-frequency resource corresponding to the apparatus 1200;

a receiving unit 1220, configured to receive, through the feedback time-frequency resource, indication information of a feedback result for uplink transmission.

Optionally, the determining unit 1210 is configured to determine the feedback time-frequency resource according to the time-frequency resource used in the uplink transmission and the identifier related to the apparatus 1200.

Optionally, the determining unit 1210 is configured to determine the feedback time-frequency resource according to a code domain resource used in the uplink transmission and a relevant identifier of the apparatus 1200.

Optionally, the determining unit 1210 is configured to determine the feedback time-frequency resource according to the time-domain resource and the code-domain resource used in the uplink transmission and the relevant identifier of the apparatus 1200.

Optionally, the uplink transmission is an unlicensed transmission, where the unlicensed transmission allocates a plurality of transmission resources to the network device in advance and notifies the apparatus 1200, so that when the apparatus 1200 has an uplink data transmission requirement, at least one transmission resource is selected from the plurality of transmission resources allocated by the network device in advance, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the determining unit 1210 is configured to determine the feedback time-frequency resource from the unlicensed feedback area according to the relevant identifier of the apparatus 1200.

Optionally, the code domain resource used by the apparatus 1200 in performing uplink transmission is a code domain resource used by the data portion when the apparatus 1200 performs uplink transmission.

Optionally, the time-frequency resource used by the apparatus 1200 in uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the apparatus 1200 in uplink transmission.

Optionally, the determining unit 1210 is configured to determine the feedback time-frequency resource according to an index of a time-frequency resource used in uplink transmission, an index of a code domain resource, and a relevant identifier of the apparatus 1200.

Optionally, the determining unit 1210 is configured to determine the feedback time-frequency resource according to a time-frequency resource set, a code domain resource, and a related identifier of the apparatus 1200, where the time-frequency resource used in uplink transmission belongs to the time-frequency resource set, where the time-frequency resource set includes at least one time-frequency resource.

Optionally, the determining unit 1210 is configured to determine a feedback time-frequency resource corresponding to the apparatus 1200 according to a code domain resource set to which a code domain resource used in uplink transmission belongs, the time-frequency resource, and a relevant identifier of the apparatus 1200, where the code domain resource set includes at least one code domain resource.

Optionally, the determining unit 1210 is configured to determine a feedback time-frequency resource corresponding to the apparatus 1200 according to a time-frequency resource set to which a time-frequency resource used in uplink transmission belongs, a code domain resource set to which a code domain resource belongs, and a correlation identifier of the apparatus 1200, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the apparatus 1200, the symbol sequence corresponding to the apparatus 1200 belongs to a symbol sequence set including at least two orthogonal symbol sequences, the symbol sequence corresponding to the apparatus 1200 is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the apparatus 1200 is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK, and

the determining unit 1210 is configured to perform correlation processing on the indication information of the feedback result of the uplink transmission according to the symbol sequence corresponding to the apparatus 1200, and determine the feedback result of the uplink transmission according to a result of the correlation processing.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

Determining unit 1210 is configured to determine a symbol sequence corresponding to the apparatus 1200 according to a pilot used by the apparatus 1200 during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying the relevant identifier of the apparatus 1200, and

the determining unit 1210 is configured to determine that the identifier associated with the apparatus 1200 is carried in the downlink time-frequency resource indicated by the location information.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, when the feedback result of the uplink transmission is a non-acknowledgement NACK, it indicates:

the network device detects the pilot used by the apparatus 1200 in uplink transmission, and the network device fails to decode the data portion of the uplink transmission.

Optionally, the network device is a base station, and the apparatus is a user equipment.

The apparatus 1200 for transmitting information according to the embodiment of the present invention may correspond to the terminal device in the method 1000 or the method 900 according to the embodiment of the present invention, and each unit, i.e., the module, and the other operations and/or functions in the apparatus 1200 for transmitting information are respectively for implementing the corresponding flow of the method 1000 in fig. 14, and are not described herein again for brevity.

According to the information transmission device of the embodiment of the invention, the network equipment determines the feedback time-frequency resource for bearing the indication information of the feedback result of the uplink transmission based on the relevant identifier of the terminal equipment, and feeds back the uplink transmission in the feedback time-frequency resource, so that the feedback of the uplink transmission can be realized without resource scheduling.

Fig. 17 shows a schematic block diagram of an apparatus 1300 for transmitting information according to an embodiment of the present invention, and as shown in fig. 17, the apparatus 1300 includes: a processor 1310 and a transmitter 1320, the processor 1310 and the transmitter 1320, optionally the device 1300 further comprises a memory 1330, the memory 1330 being coupled to the processor 1310, further optionally the device 1300 comprises a bus system 1340. Wherein the processor 1310, the memory 1320, and the transmitter 1330 may be coupled via the bus system 1340, the memory 1330 may be configured to store instructions, and the processor 1310 may be configured to execute the instructions stored by the memory 1330 to control the transmitter 1320 to transmit information or signals;

the processor 1310 is configured to determine, according to the relevant identifier of the terminal device, a feedback time-frequency resource corresponding to the terminal device;

the processor 1310 is configured to control the transmitter 1320 to transmit indication information of a feedback result for uplink transmission to the terminal device through the feedback time-frequency resource.

Optionally, the processor 1310 is configured to determine the feedback time-frequency resource according to a time-frequency resource used by the terminal device during the uplink transmission and a relevant identifier of the terminal device.

Optionally, the processor 1310 is configured to determine the feedback time-frequency resource according to a code domain resource used by the terminal device during the uplink transmission and a relevant identifier of the terminal device.

Optionally, the processor 1310 is configured to determine the feedback time-frequency resource according to a time-domain resource, a code-domain resource and a relevant identifier of the terminal device, where the time-domain resource and the code-domain resource are used by the terminal device during the uplink transmission.

Optionally, the uplink transmission is an unlicensed transmission, and the unlicensed transmission allocates in advance to the device 1300 and informs the terminal device of a plurality of transmission resources, so that when the terminal device has a requirement for uplink data transmission, at least one transmission resource is selected from the plurality of transmission resources allocated in advance by the device 1300, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the processor 1310 is configured to determine the feedback time-frequency resource from the unlicensed feedback area according to the relevant identifier of the terminal device.

Optionally, the code domain resource used by the terminal device in uplink transmission is a code domain resource used by the data portion in uplink transmission by the terminal device.

Optionally, the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the terminal device during uplink transmission.

Optionally, the processor 1310 is configured to determine the feedback time-frequency resource according to an index of a time-frequency resource used by the terminal device during uplink transmission, an index of a code domain resource, and a relevant identifier of the terminal device.

Optionally, the processor 1310 is configured to determine the feedback time-frequency resource according to a time-frequency resource set, a code domain resource, and a relevant identifier of the terminal device, where the time-frequency resource used by the terminal device during uplink transmission belongs to the time-frequency resource set, and the code domain resource and the relevant identifier of the terminal device, where the time-frequency resource set includes at least one time-frequency resource.

Optionally, the processor 1310 is configured to determine a feedback time-frequency resource corresponding to the terminal device according to a code domain resource set, a time-frequency resource and a relevant identifier of the terminal device, where a code domain resource used by the terminal device during uplink transmission belongs to the code domain resource set, and the time-frequency resource and the relevant identifier of the terminal device, where the code domain resource set includes at least one code domain resource.

Optionally, the processor 1310 is configured to determine a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource set to which a time-frequency resource used by the terminal device during uplink transmission belongs, a code domain resource set to which a code domain resource belongs, and a correlation identifier of the terminal device, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

The processor 1310 is configured to determine a symbol sequence corresponding to the terminal device according to a pilot used by the terminal device during uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying the relevant identifier of the terminal device.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, when the feedback result of the uplink transmission is a non-acknowledgement NACK, it indicates:

the device 1300 detects the pilot used by the terminal device for uplink transmission, and the device 130 fails to decode the data portion of the uplink transmission.

Optionally, the device 1300 is a base station, and the terminal device is a user equipment.

It should be understood that, in the embodiment of the present invention, the processor 1310 may be a Central Processing Unit (CPU), and the processor 1310 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 1330 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1310. A portion of the memory 1330 may also include non-volatile random access memory. For example, the memory 1330 may also store information of device types.

The bus system 1340 may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. For clarity of illustration, however, the various buses are designated in the figure as the bus system 1340.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 1310. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1330, and the processor 1310 reads the information in the memory 1330 and performs the steps of the above method in combination with the hardware thereof. To avoid repetition, it is not described in detail here.

The device 1300 for transmitting information according to the embodiment of the present invention may correspond to the network device in the method 900 according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the device 1300 for transmitting information are respectively for implementing the corresponding flow of the method 900 in fig. 13, and are not described herein again for brevity.

According to the information transmission device in the embodiment of the present invention, the network device and the terminal device determine the feedback time-frequency resource for carrying the indication information of the feedback result of the uplink transmission based on the relevant identifier of the terminal device, and perform feedback for the uplink transmission on the feedback time-frequency resource, so that feedback for the uplink transmission can be realized without resource scheduling.

Fig. 18 shows a schematic block diagram of an apparatus 1400 for transmitting information according to an embodiment of the present invention, and as shown in fig. 18, the apparatus 1400 includes: a processor 1410 and a receiver 1420, the processor 1410 being coupled to the receiver 1420, the device 1400 optionally further comprising a memory 1430, the memory 1430 being coupled to the processor 1410, and further optionally the device 1400 further comprising a bus system 1440. Wherein the processor 1410, the memory 1430, and the receiver 1420 may be coupled by a bus system 1440, the memory 1430 may be configured to store instructions, and the processor 1410 may be configured to execute the instructions stored by the memory 1430 to control the receiver 1420 to receive information or signals;

the processor 1410 is configured to determine, according to the relevant identifier of the device 1400, a feedback time-frequency resource corresponding to the device 1400;

the processor 1410 is configured to control the receiver 1420 to receive indication information of a feedback result for uplink transmission through the feedback time-frequency resource.

Optionally, the processor 1410 is configured to determine the feedback time-frequency resource according to the time-frequency resource used in the uplink transmission and the relevant identifier of the device 1400.

Optionally, the processor 1410 is configured to determine the feedback time-frequency resource according to the code domain resource used in the uplink transmission and the relevant identifier of the device 1400.

Optionally, the processor 1410 is configured to determine the feedback time-frequency resource according to the time-domain resource and the code-domain resource used in the uplink transmission and the relevant identifier of the device 1400.

Optionally, the uplink transmission is an unlicensed transmission, where the unlicensed transmission allocates a plurality of transmission resources to the network device in advance and informs the device 1400, so that when the device 1400 has an uplink data transmission requirement, at least one transmission resource is selected from the plurality of transmission resources allocated by the network device in advance, and the selected transmission resource is used to transmit uplink data.

Optionally, the downlink time-frequency resource includes an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the processor 1410 is configured to determine the feedback time-frequency resource from the unlicensed feedback region according to the relevant identifier of the device 1400.

Optionally, the code domain resource used by the device 1400 in uplink transmission is a code domain resource used by the data portion when the device 1400 is in uplink transmission.

Optionally, the time-frequency resource used by the device 1400 during uplink transmission is a time-frequency resource corresponding to a contention transmission unit CTU used by the device 1400 during uplink transmission.

Optionally, the processor 1410 is configured to determine the feedback time-frequency resource according to the index of the time-frequency resource used in the uplink transmission, the index of the code domain resource, and the relevant identifier of the device 1400.

Optionally, the processor 1410 is configured to determine the feedback time-frequency resource according to a time-frequency resource set, a code domain resource, and a related identifier of the device 1400, where the time-frequency resource set used in uplink transmission belongs to the time-frequency resource set, and the code domain resource includes at least one time-frequency resource.

Optionally, the processor 1410 is configured to determine a feedback time-frequency resource corresponding to the device 1400 according to a code domain resource set, a time-frequency resource, and a relevant identifier of the device 1400, where the code domain resource set used in uplink transmission includes at least one code domain resource.

Optionally, the processor 1410 is configured to determine a feedback time-frequency resource corresponding to the device 1400 according to a time-frequency resource set to which a time-frequency resource used in uplink transmission belongs, a code domain resource set to which a code domain resource belongs, and a related identifier of the device 1400, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

Optionally, the code domain resources include a sparse code division multiple access SCMA codebook, a low density signature LDS sequence, or a code division multiple access CDMA code.

Optionally, the SCMA codebook includes at least two codewords, the SCMA codebook is configured to indicate a mapping relationship between at least two data combinations and the at least two codewords, the codewords are multidimensional complex vectors and are used to indicate a mapping relationship between data and a plurality of modulation symbols, and the modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol.

Optionally, the LDS sequence is a multidimensional complex vector, the multidimensional vector includes at least one zero element and at least one non-zero element, the signature sequence is used for adjusting amplitude and phase of a modulation symbol, and the modulation symbol is obtained by constellation mapping of data through a modulation constellation.

Optionally, the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the device 1400, the symbol sequence corresponding to the device 1400 belongs to a symbol sequence set including at least two orthogonal symbol sequences, the symbol sequence corresponding to the device 1400 is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK, or the symbol sequence corresponding to the device 1400 is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK, and

the processor 1410 is configured to perform correlation processing on the indication information of the uplink transmission feedback result according to the symbol sequence corresponding to the device 1400, and determine the uplink transmission feedback result according to a result of the correlation processing.

Optionally, the symbol sequences in the set of symbol sequences and the pilots have a one-to-one correspondence, an

Processor 1410 is configured to determine a symbol sequence corresponding to the device 1400 according to a pilot used by the device 1400 for uplink transmission.

Optionally, the symbol sequence comprises a walsh wash sequence or a goodlen Golden sequence.

Optionally, the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying the relevant identifier of the device 1400, and

the processor 1410 is configured to determine that the id of the apparatus 1400 is carried in the downlink time-frequency resource indicated by the location information.

Optionally, the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel PHICH.

Optionally, when the feedback result of the uplink transmission is a non-acknowledgement NACK, it indicates:

the network device detects the pilot used by the device 1400 for uplink transmission and the network device fails to decode the data portion of the uplink transmission.

Optionally, the network device is a base station, and the device 1400 is a user equipment.

It should be understood that, in the embodiment of the present invention, the processor 1410 may be a Central Processing Unit (CPU), and the processor 1410 may also be other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 1430 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1410. A portion of memory 1430 may also include non-volatile random access memory. For example, the memory 1430 may also store device type information.

The bus system 1440 may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus. For clarity of illustration, however, the various buses are designated in the figure as the bus system 1440.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 1410. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory 1430, and the processor 1410 reads the information in the memory 1430 and, in conjunction with its hardware, performs the steps of the above-described method. To avoid repetition, it is not described in detail here.

The device 1400 for transmitting information according to the embodiment of the present invention may correspond to the device 1400 in the method 1000 or the method 900 according to the embodiment of the present invention, and each unit, i.e., the module, and the other operations and/or functions in the device 1400 for transmitting information are respectively for implementing the corresponding flow of the method 1000 in fig. 14, and are not described herein again for brevity.

According to the information transmission device in the embodiment of the present invention, the network device determines the feedback time-frequency resource for carrying the indication information of the feedback result of the uplink transmission based on the relevant identifier of the terminal device, and performs feedback for the uplink transmission on the feedback time-frequency resource, so that feedback for the uplink transmission can be realized without resource scheduling.

Claims (72)

1. A method of transmitting information, the method comprising:

the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to the time frequency resource and the code domain resource used by the terminal equipment during uplink transmission;

and sending indication information aiming at the feedback result of the uplink transmission to the terminal equipment through the feedback time-frequency resource.

2. The method of claim 1, wherein the uplink transmission is an unlicensed transmission, and the unlicensed transmission pre-allocates and informs the network device of a plurality of transmission resources, so that when the terminal device has a need for uplink data transmission, at least one transmission resource is selected from the plurality of transmission resources pre-allocated by the network device, and the selected transmission resource is used for transmitting uplink data.

3. The method of claim 2, wherein the downlink time-frequency resources comprise an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the network equipment determines a feedback time-frequency resource corresponding to the terminal equipment according to the time-frequency resource and the code domain resource used by the terminal equipment during uplink transmission, and the method comprises the following steps:

and the network equipment determines the feedback time frequency resource corresponding to the terminal equipment from the authorization-free feedback area according to the time frequency resource and the code domain resource used by the terminal equipment during uplink transmission.

4. The method according to any of claims 1 to 3, wherein the code domain resources used by the terminal device in uplink transmission are code domain resources used by the data portion in uplink transmission by the terminal device.

5. The method according to any of claims 1 to 3, wherein the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a Contention Transmission Unit (CTU) used by the terminal device during uplink transmission.

6. The method according to any one of claims 1 to 3, wherein the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device in uplink transmission comprises:

and the network equipment determines the feedback time frequency resource corresponding to the terminal equipment according to the index of the time frequency resource and the index of the code domain resource used by the terminal equipment during uplink transmission.

7. The method according to any one of claims 1 to 3, wherein the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device in uplink transmission comprises:

the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set and a code domain resource to which the time frequency resource used by the terminal equipment during uplink transmission belongs, wherein the time frequency resource set comprises at least one time frequency resource.

8. The method according to any one of claims 1 to 3, wherein the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device in uplink transmission comprises:

the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a code domain resource set and a time frequency resource to which the code domain resource used by the terminal equipment during uplink transmission belongs, wherein the code domain resource set comprises at least one code domain resource.

9. The method according to any one of claims 1 to 3, wherein the determining, by the network device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used by the terminal device in uplink transmission comprises:

the network equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set to which a time frequency resource used by the terminal equipment during uplink transmission belongs and a code domain resource set to which a code domain resource belongs, wherein the time frequency resource set comprises at least one time frequency resource, and the code domain resource set comprises at least one code domain resource.

10. The method of any of claims 1 to 3, wherein the code domain resources comprise sparse code division multiple Access (SCMA) codebooks, low density signed LDS sequences, or Code Division Multiple Access (CDMA) codes.

11. The method of claim 10, wherein the SCMA codebook comprises at least two codewords, wherein the SCMA codebook is used for indicating mapping relationships between at least two data combinations and the at least two codewords, and wherein the codewords are multidimensional complex vectors used for indicating mapping relationships between data and a plurality of modulation symbols, and wherein the modulation symbols comprise at least one zero modulation symbol and at least one non-zero modulation symbol.

12. The method of claim 10, wherein the LDS sequence is a multidimensional complex vector comprising at least one zero element and at least one non-zero element, wherein the signature sequence is used for amplitude and phase adjustment of modulation symbols, and wherein the modulation symbols are obtained by constellation mapping data through a modulation constellation.

13. The method according to any one of claims 1 to 3, wherein the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an Acknowledgement (ACK) or indicate that the feedback result of the uplink transmission is a non-acknowledgement (NACK).

14. The method of claim 13, wherein the symbol sequences in the set of symbol sequences and pilots have a one-to-one correspondence, an

The method further comprises the following steps:

and determining a symbol sequence corresponding to the terminal equipment according to the pilot frequency used by the terminal equipment during uplink transmission.

15. The method of claim 13, wherein the symbol sequence comprises a walsh wash sequence or a goodlan Golden sequence.

16. The method according to claim 1, wherein the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying a relevant identifier of the terminal device.

17. The method according to claim 3 or 16, wherein the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel (PHICH).

18. The method according to any of claims 1 to 3, wherein the network device is a base station and the terminal device is a user equipment.

19. A method of transmitting information, the method comprising:

the terminal equipment determines a feedback time-frequency resource corresponding to the terminal equipment according to the time-frequency resource and the code domain resource used in uplink transmission;

and receiving indication information aiming at the feedback result of the uplink transmission through the feedback time-frequency resource.

20. The method of claim 19, wherein the uplink transmission is an unlicensed transmission, and the unlicensed transmission pre-allocates and informs the network device of a plurality of transmission resources, so that when the terminal device has a need for uplink data transmission, at least one transmission resource is selected from the plurality of transmission resources pre-allocated by the network device, and the selected transmission resource is used for transmitting uplink data.

21. The method of claim 20, wherein the downlink time-frequency resources comprise an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the terminal equipment determines a feedback time-frequency resource corresponding to the terminal equipment according to the time-frequency resource and the code domain resource used in uplink transmission, and the method comprises the following steps:

and the terminal equipment determines the feedback time frequency resource corresponding to the terminal equipment from the authorization-free feedback area according to the time frequency resource and the code domain resource used during uplink transmission.

22. The method according to any of claims 19 to 21, wherein the code domain resources used by the terminal device in uplink transmission are code domain resources used by the data portion in uplink transmission by the terminal device.

23. The method according to any of claims 19 to 21, wherein the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a Contention Transmission Unit (CTU) used by the terminal device during uplink transmission.

24. The method according to any one of claims 19 to 21, wherein the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in the uplink transmission comprises:

and the terminal equipment determines the feedback time frequency resource corresponding to the terminal equipment according to the index of the time frequency resource and the index of the code domain resource used in the uplink transmission.

25. The method according to any one of claims 19 to 21, wherein the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in the uplink transmission comprises:

the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a time frequency resource set and a code domain resource to which the time frequency resource used in uplink transmission belongs, wherein the time frequency resource set comprises at least one time frequency resource.

26. The method according to any one of claims 19 to 21, wherein the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in the uplink transmission comprises:

the terminal equipment determines a feedback time frequency resource corresponding to the terminal equipment according to a code domain resource set and a time frequency resource to which a code domain resource used in uplink transmission belongs, wherein the code domain resource set comprises at least one code domain resource.

27. The method according to any one of claims 19 to 21, wherein the determining, by the terminal device, the feedback time-frequency resource corresponding to the terminal device according to the time-frequency resource and the code domain resource used in the uplink transmission comprises:

the terminal equipment determines feedback time frequency resources corresponding to the terminal equipment according to a time frequency resource set to which the time frequency resources used during uplink transmission belong and a code domain resource set to which the code domain resources belong, wherein the time frequency resource set comprises at least one time frequency resource, and the code domain resource set comprises at least one code domain resource.

28. The method according to any of claims 19 to 21, wherein the code domain resources comprise sparse code division multiple access SCMA codebooks, low density signed LDS sequences, or code division multiple access CDMA codes.

29. The method of claim 28, wherein the SCMA codebook comprises at least two codewords, wherein the SCMA codebook is configured to indicate a mapping between at least two data combinations and the at least two codewords, and wherein the codewords are multidimensional complex vectors indicating a mapping between data and a plurality of modulation symbols, and wherein the modulation symbols comprise at least one zero modulation symbol and at least one non-zero modulation symbol.

30. The method of claim 28, wherein the LDS sequence is a multidimensional complex vector comprising at least one zero element and at least one non-zero element, wherein the signature sequence is used for amplitude and phase adjustment of modulation symbols, and wherein the modulation symbols are obtained by constellation mapping data through a modulation constellation.

31. The method according to any of claims 19 to 21, wherein the information indicating the feedback result of the uplink transmission comprises a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set comprising at least two orthogonal symbol sequences, the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK or the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK, and

the method further comprises the following steps:

and performing relevant processing on the indication information of the feedback result of the uplink transmission according to the symbol sequence corresponding to the terminal equipment, and determining the feedback result of the uplink transmission according to the result of the relevant processing.

32. The method of claim 31, wherein the symbol sequences and pilots in the set of symbol sequences have a one-to-one correspondence, an

The method further comprises the following steps:

and determining a symbol sequence corresponding to the terminal equipment according to the pilot frequency used by the terminal equipment during uplink transmission.

33. The method of claim 31, wherein the symbol sequence comprises a walsh wash sequence or a goodlan Golden sequence.

34. The method according to claim 19, wherein the information indicative of the feedback result of the uplink transmission includes location information of feedback time-frequency resources carrying the relevant identifier of the terminal device, and

the method further comprises the following steps:

and determining that the relevant identifier of the terminal equipment is borne on the downlink time-frequency resource indicated by the position information.

35. The method of claim 21 or 34, wherein the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel (PHICH).

36. The method according to any of claims 19 to 21, wherein the terminal device is a user equipment.

37. An apparatus for transmitting information, the apparatus comprising:

a transmitter;

the processor is connected with the transmitter and used for determining feedback time-frequency resources corresponding to the terminal equipment according to the time-frequency resources and code domain resources used by the terminal equipment during uplink transmission;

and the indicating information is used for controlling the transmitter to transmit the feedback result aiming at the uplink transmission to the terminal equipment through the feedback time frequency resource.

38. The apparatus of claim 37, wherein the uplink transmission is an unlicensed transmission, and the unlicensed transmission pre-allocates a plurality of transmission resources to the apparatus and informs the terminal device, so that when the terminal device has a need for uplink data transmission, at least one transmission resource is selected from the plurality of transmission resources pre-allocated by the apparatus, and the selected transmission resource is used to transmit uplink data.

39. The apparatus of claim 38, wherein downlink time-frequency resources comprise an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and

the processor is specifically configured to determine, from the authorization-free feedback region, a feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource and a code domain resource used by the terminal device during uplink transmission.

40. The device according to any one of claims 37 to 39, wherein the code domain resource used by the terminal device in uplink transmission is specifically a code domain resource of a data portion used by the terminal device in uplink transmission.

41. The device according to any one of claims 37 to 39, wherein the time-frequency resource used by the terminal device during uplink transmission is a time-frequency resource corresponding to a Contention Transmission Unit (CTU) used by the terminal device during uplink transmission.

42. The device according to any one of claims 37 to 39, wherein the processor is specifically configured to determine the feedback time-frequency resource corresponding to the terminal device according to an index of a time-frequency resource and an index of a code domain resource used by the terminal device in uplink transmission.

43. The device according to any one of claims 37 to 39, wherein the processor is specifically configured to determine the feedback time-frequency resource corresponding to the terminal device according to a time-frequency resource set and a code domain resource to which a time-frequency resource used by the terminal device during uplink transmission belongs, where the time-frequency resource set includes at least one time-frequency resource.

44. The device according to any one of claims 37 to 39, wherein the processor is specifically configured to determine the feedback time-frequency resource corresponding to the terminal device according to a code domain resource set and a time-frequency resource to which a code domain resource used by the terminal device during uplink transmission belongs, where the code domain resource set includes at least one code domain resource.

45. The device according to any one of claims 37 to 39, wherein the processor is specifically configured to determine the feedback time-frequency resources corresponding to the terminal device according to a time-frequency resource set to which a time-frequency resource used by the terminal device for uplink transmission belongs and a code domain resource set to which a code domain resource belongs, where the time-frequency resource set includes at least one time-frequency resource, and the code domain resource set includes at least one code domain resource.

46. The apparatus of any of claims 37-39, wherein the code domain resources comprise a sparse code division multiple Access (SCMA) codebook, a low density signed LDS sequence, or a Code Division Multiple Access (CDMA) code.

47. The apparatus of claim 46, wherein the SCMA codebook comprises at least two codewords, and wherein the SCMA codebook is configured to indicate a mapping of at least two data combinations to the at least two codewords, and wherein the codewords are multidimensional complex vectors configured to indicate a mapping between data and a plurality of modulation symbols, and wherein the modulation symbols comprise at least one zero modulation symbol and at least one non-zero modulation symbol.

48. The apparatus of claim 46, wherein the LDS sequence is a multidimensional complex vector comprising at least one zero element and at least one non-zero element, wherein the signature sequence is used for amplitude and phase adjustment of modulation symbols, and wherein the modulation symbols are obtained by constellation mapping of data through a modulation constellation.

49. The device according to any one of claims 37 to 39, wherein the indication information of the feedback result of the uplink transmission includes a symbol sequence corresponding to the terminal device, the symbol sequence corresponding to the terminal device belongs to a symbol sequence set including at least two orthogonal symbol sequences, and the symbol sequence corresponding to the terminal device is used to indicate that the feedback result of the uplink transmission is an acknowledgement ACK or indicate that the feedback result of the uplink transmission is a non-acknowledgement NACK.

50. The apparatus of claim 49, wherein the symbol sequences in the set of symbol sequences have a one-to-one correspondence with pilots, an

The processor is further configured to determine a symbol sequence corresponding to the terminal device according to a pilot used by the terminal device during uplink transmission.

51. The apparatus of claim 49, wherein the symbol sequence comprises a Walsh sequence or a Goodpasten Golden sequence.

52. The device according to claim 37, wherein the indication information of the feedback result of the uplink transmission includes location information of a downlink time-frequency resource carrying a relevant identifier of the terminal device.

53. The apparatus of claim 39 or 52, wherein the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel (PHICH).

54. The apparatus according to any of claims 37 to 39, wherein the apparatus is a base station.

55. An apparatus for transmitting information, the apparatus comprising:

a receiver;

a processor connected to the receiver, configured to determine, according to a time-frequency resource and a code domain resource used in uplink transmission, a feedback time-frequency resource corresponding to the device;

and the indication information is used for controlling the receiver to receive the feedback result aiming at the uplink transmission through the feedback time frequency resource.

56. The device of claim 55, wherein the uplink transmission is an unlicensed transmission, and wherein the unlicensed transmission pre-allocates and informs the device of a plurality of transmission resources for the network device, so that when the device has a need for uplink data transmission, at least one transmission resource is selected from the plurality of transmission resources pre-allocated by the network device, and the selected transmission resource is used for transmitting uplink data.

57. The device of claim 56, wherein the downlink time-frequency resources comprise an unlicensed feedback region for feedback for the unlicensed transmission and a licensed feedback region for feedback for the licensed transmission, and wherein

The processor is specifically configured to determine, according to a time-frequency resource and a code domain resource used during uplink transmission, a feedback time-frequency resource corresponding to the device from the grant-free feedback region.

58. The device according to any of claims 55 to 57, wherein the time-frequency resources and code domain resources used by the data portion during uplink transmission determine feedback time-frequency resources corresponding to the device.

59. The apparatus of any one of claims 55 to 57, wherein the code domain resources used by the apparatus for uplink transmission are code domain resources used by the apparatus for data portion for uplink transmission.

60. The device according to any of claims 55 to 57, wherein the processor is specifically configured to determine the feedback time-frequency resource corresponding to the device according to an index of a time-frequency resource and an index of a code domain resource used in uplink transmission.

61. The device according to any of claims 55 to 57, wherein the processor is specifically configured to determine the feedback time-frequency resources corresponding to the device according to a time-frequency resource set and code domain resources to which the time-frequency resources used for uplink transmission belong, where the time-frequency resource set includes at least one time-frequency resource.

62. The device according to any one of claims 55 to 57, wherein the processor is specifically configured to determine the feedback time-frequency resource corresponding to the device according to a code domain resource set and a time-frequency resource to which a code domain resource used for uplink transmission belongs, where the code domain resource set includes at least one code domain resource.

63. The device according to any of claims 55 to 57, wherein the processor is specifically configured to determine the feedback time-frequency resources corresponding to the device according to a time-frequency resource set to which the time-frequency resources used for uplink transmission belong and a code domain resource set to which the code domain resources belong, wherein the time-frequency resource set comprises at least one time-frequency resource, and the code domain resource set comprises at least one code domain resource.

64. The apparatus of any of claims 55 to 57, wherein the code domain resources comprise a sparse code division multiple Access (SCMA) codebook, a low density signed LDS sequence, or a Code Division Multiple Access (CDMA) code.

65. The apparatus of claim 64, wherein the SCMA codebook comprises at least two codewords, and wherein the SCMA codebook is configured to indicate a mapping of at least two data combinations to the at least two codewords, and wherein the codewords are multidimensional complex vectors configured to indicate a mapping between data and a plurality of modulation symbols, and wherein the modulation symbols comprise at least one zero modulation symbol and at least one non-zero modulation symbol.

66. The apparatus of claim 64, wherein the LDS sequence is a multidimensional complex vector comprising at least one zero element and at least one non-zero element, wherein the signature sequence is used for amplitude and phase adjustment of modulation symbols, and wherein the modulation symbols are obtained by constellation mapping of data through a modulation constellation.

67. The apparatus according to any of claims 55 to 57, wherein the indication information of the feedback result of the uplink transmission comprises a symbol sequence corresponding to the apparatus, the symbol sequence corresponding to the apparatus belongs to a symbol sequence set comprising at least two orthogonal symbol sequences, the symbol sequence corresponding to the apparatus is used to indicate that the feedback result of the uplink transmission is an Acknowledgement (ACK) or the symbol sequence corresponding to the apparatus is used to indicate that the feedback result of the uplink transmission is a non-acknowledgement (NACK), and

the processor is further configured to perform correlation processing on the indication information of the feedback result of the uplink transmission according to the symbol sequence corresponding to the device, and determine the feedback result of the uplink transmission according to a result of the correlation processing.

68. The apparatus of claim 67, wherein the symbol sequences in the set of symbol sequences have a one-to-one correspondence with pilots, an

The processor is further configured to determine a symbol sequence corresponding to the device according to a pilot used by the device during uplink transmission.

69. The apparatus of claim 67, wherein the sequence of symbols comprises a Walsh sequence or a Goodpasten Golden sequence.

70. The device according to claim 55, wherein the information indicative of the feedback result of the uplink transmission comprises location information of feedback time-frequency resources carrying related identifiers of the device, and wherein

The processor is further configured to determine that the relevant identifier of the device is carried on the downlink time-frequency resource indicated by the location information.

71. The apparatus of claim 57 or 70, wherein the downlink time-frequency resource belongs to a time-frequency resource corresponding to a physical hybrid automatic repeat request indicator channel (PHICH).

72. The device of any of claims 55 to 57, wherein the device is a terminal device.

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