CN115189839A

CN115189839A - Communication method and device

Info

Publication number: CN115189839A
Application number: CN202110363765.1A
Authority: CN
Inventors: 李军; 焦淑蓉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-10-14
Also published as: WO2022206283A1

Abstract

The application provides a communication method and equipment, which can transmit more information bits of UCI as far as possible when multiplexing the same physical uplink channel to transmit a plurality of independently coded UCI, but not discard or bind part of information bits of the UCI at one step, thereby improving the accuracy of UCI transmission. The method mainly comprises the steps of determining a third code rate through first uplink control information UCI and second UCI, a first code rate corresponding to the first UCI, a second code rate corresponding to the second UCI and resources to bear the first UCI and the second UCI in a physical uplink channel, and determining the transmission mode of the first UCI and the second UCI according to the relation between the third code rate and a first threshold.

Description

Communication method and device

Technical Field

The present application relates to the field of communications, and in particular, to a communication method and device.

Background

Different types of services correspond to different requirements, and currently, in order to save resources, uplink Control Information (UCI) corresponding to different services needs to be multiplexed onto the same resource for transmission. For example, the main scenarios in the fifth generation mobile communication system (5 th generation) include enhanced mobile bandwidth (eMBB), low latency and high reliability communication (URLLC), and massive machine type communication (mtc), which provide requirements on the system for high reliability, low latency, large bandwidth, wide coverage, etc., when UCI corresponding to these different scenarios is multiplexed to the same Physical Uplink Control Channel (PUCCH), i.e., when multiple UCI encoded independently are multiplexed to the same PUCCH, an appropriate multiplexing mode needs to be considered, so that transmission of more UCI can be guaranteed as much as possible.

Disclosure of Invention

The application provides a communication method and equipment, which can ensure the transmission of more UCIs as far as possible when a plurality of UCIs which are independently coded are multiplexed to the same physical uplink channel.

In a first aspect, the present application provides a communication method, including: receiving indication information, wherein the indication information is used for indicating a first code rate and a second code rate; determining first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, wherein the first UCI and the second UCI are independently coded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; determining a third code rate according to the resource of the physical uplink channel, the first UCI and the second UCI; when the third code rate is greater than a first threshold, transmitting all bits of the first UCI and partial bits of the second UCI through the physical uplink channel, or transmitting all bits of the first UCI and second UCI subjected to bit combination processing; or, when the third code rate is less than or equal to a first threshold, transmitting all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

By adopting the above manner, when all bits of the first UCI and all bits of the second UCI cannot be transmitted through multiplexing the physical uplink channel, the transmission manner of the second UCI is determined by comparing the third code rate with the first threshold value on the basis of ensuring that all bits of the first UCI can be transmitted, that is, all bits or part bits of the second UCI or the processed second UCI are transmitted, so that more bits of the second UCI can be transmitted as much as possible, and the performance degradation of a scene corresponding to the second UCI, which is caused by that the terminal device simply discards or binds part bits of the second UCI at present, is avoided. Moreover, due to the setting of the first threshold, the code rate for transmitting the second UCI is not increased without limit, so that the network device cannot decode the second UCI due to too high code rate, and the performance of physical uplink channel transmission can be ensured as much as possible.

In a possible implementation, the first threshold is greater than or equal to the second code rate.

In the foregoing manner, the first threshold being greater than or equal to the second code rate means that when the third code rate is greater than the second code rate and less than the first threshold, all bits of the second UCI may be transmitted in a code rate increasing manner, so as to ensure accuracy of transmission of the second UCI.

In one possible embodiment, the first threshold is predefined or network device indicated.

In a possible implementation manner, a third code rate is determined according to the number of bits of the second UCI, the number of bits of cyclic redundancy check of the second UCI, the number of bits of the first UCI, the number of bits of cyclic redundancy check of the first UCI, and the resource of the physical uplink channel.

In one possible implementation, the third code rate satisfies the following condition:

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, for cyclic redundancy check of the first UCI _m For modulation scheme, r ₁ For the first code rate, E _tot Output sequence length, E, for total rate matching _UCI-L Outputting rate matching corresponding to the second UCILength of sequence, O ₂ Is the number of bits of the second UCI, O _CRC2 A number of bits checked for a cyclic redundancy code of the second UCI,

indicating rounding up.

In the foregoing manner, if the remaining resources after the resource occupied by the first UCI in the physical uplink channel is removed are used to transmit all bits of the second UCI, the code rate of the second UCI is a third code rate, and if the third code rate can be smaller than the first threshold at this time, all bits of the second UCI can be transmitted.

In one possible implementation, the first UCI has a higher priority than the second UCI.

In a second aspect, the present application provides a communication method, including: sending indication information, wherein the indication information is used for indicating a first code rate and a second code rate; determining first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, wherein the first UCI and the second UCI are independently coded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; determining a third code rate according to the resource of the physical uplink channel, the first UCI and the second UCI; when the third code rate is greater than a first threshold, receiving all bits of the first UCI and partial bits of the second UCI through the physical uplink channel, or receiving all bits of the first UCI and a second UCI subjected to bit sum processing; or, when the third code rate is less than or equal to a first threshold, receiving all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

By adopting the above manner, when all bits of the first UCI and all bits of the second UCI cannot be transmitted through multiplexing the physical uplink channel, by comparing the third code rate with the first threshold value, on the basis of ensuring that all bits of the first UCI can be transmitted, the transmission mode of the second UCI is determined, that is, all bits or part of bits of the second UCI are transmitted or the second UCI after being processed is transmitted, so that more bits of the second UCI can be transmitted as much as possible, and the performance degradation of a scene corresponding to the second UCI, which is caused by that a terminal device simply discards or binds part of bits of the second UCI at once at present, is avoided. Moreover, due to the setting of the first threshold, the code rate for transmitting the second UCI is not increased without limit, so that the network device cannot decode the second UCI due to too high code rate, and the performance of physical uplink channel transmission can be ensured as much as possible.

In the foregoing manner, the first threshold being greater than or equal to the second code rate means that when the third code rate is greater than the second code rate and less than the first threshold, all bits of the second UCI may be transmitted in a manner of increasing a code rate, so as to ensure accuracy of transmission of the second UCI.

In a possible embodiment, the first threshold is predefined.

In a possible implementation manner, the third code rate is determined according to the number of bits of the second UCI, the number of bits of the cyclic redundancy check of the second UCI, the number of bits of the first UCI, the number of bits of the cyclic redundancy check of the first UCI, and the resource of the physical uplink channel.

wherein, O ₁ Is the first UCINumber of bits, O _CRC1 Number of bits, Q, for cyclic redundancy check of the first UCI _m For the modulation scheme, r ₁ For the first code rate, E _tot Output sequence length, E, for total rate matching _UCI-L Matching the length of the output sequence for the rate corresponding to the second UCI, O ₂ Is the number of bits of the second UCI, O _CRC2 A number of bits checked for a cyclic redundancy code of the second UCI,

indicating rounding up.

In the foregoing manner, if the remaining resources after the resources occupied by the first UCI in the physical uplink channel are removed are used to transmit all bits of the second UCI, the code rate of the second UCI is a third code rate, and if the third code rate can be smaller than the first threshold at this time, all bits of the second UCI can be transmitted.

In a third aspect, a terminal device is provided, which includes: a receiving unit, configured to receive indication information, where the indication information is used to indicate a first code rate and a second code rate; a processing unit, configured to determine first uplink control information UCI and second UCI to be carried by a physical uplink channel, where the first UCI and the second UCI are independently coded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; the processing unit is further configured to determine a third code rate according to the resource of the physical uplink channel, the first UCI, and the second UCI; a sending unit, configured to send, when the third code rate is greater than a first threshold, all bits of the first UCI and a part of bits of the second UCI through the physical uplink channel, or send all bits of the first UCI and a second UCI subjected to bit and processing; or, when the third code rate is less than or equal to a first threshold, the sending unit is configured to send all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

In a possible implementation manner, the processing unit is further configured to determine a third code rate according to the number of bits of the second UCI, the number of bits of cyclic redundancy check of the second UCI, the number of bits of the first UCI, the number of bits of cyclic redundancy check of the first UCI, and the resource of the physical uplink channel.

In one possible embodiment, the third code rate satisfies the following condition:

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, for cyclic redundancy check of the first UCI _m For modulation scheme, r ₁ For the first code rate, E _tot Output sequence length, E, for total rate matching _UCI-L Matching a length of an output sequence for a rate corresponding to the second UCI, O ₂ Is the number of bits of the second UCI, O _CRC2 A number of bits checked for a cyclic redundancy code of the second UCI,

indicating rounding up.

In a fourth aspect, the present application provides a network device, comprising: a sending unit, configured to send indication information, where the indication information is used to indicate a first code rate and a second code rate; a processing unit, configured to determine first uplink control information UCI and second UCI to be carried by a physical uplink channel, where the first UCI and the second UCI are independently coded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; the processing unit is further configured to determine a third code rate according to the resource of the physical uplink channel, the first UCI, and the second UCI; a receiving unit, configured to receive, through the physical uplink channel, all bits of the first UCI and a part of bits of the second UCI or all bits of the first UCI and a second UCI subjected to bit and processing when the third code rate is greater than a first threshold; or, when the third code rate is less than or equal to a first threshold, the receiving unit is configured to receive all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

In a possible embodiment, the first threshold is predefined.

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, checked for cyclic redundancy code of said first UCI _m For the modulation scheme, r ₁ For the first code rate, E _tot Output sequence length, E, for total rate matching _UCI-L Matching a length of an output sequence for a rate corresponding to the second UCI, O ₂ Is the number of bits of the second UCI, O _CRC2 A number of bits checked for a cyclic redundancy code of the second UCI,

indicating rounding up.

In a fifth aspect, the present application provides a communication method, including: receiving indication information, wherein the indication information is used for indicating a first code rate and a second code rate; determining first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, wherein the first UCI and the second UCI are independently coded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; determining a second resource according to the first UCI, the first code rate, the second UCI and the second code rate; transmitting all bits of the first UCI and all bits of the second UCI on the second resource, wherein the number of Resource Blocks (RBs) of the second resource is less than or equal to the number of RBs in the physical uplink channel; or, the number of resource blocks RB of the second resource is greater than the number of RB in the physical uplink channel, all bits of the first UCI are transmitted on the physical uplink channel, all or part of bits of the second UCI are transmitted on the physical uplink channel, or the second UCI is transmitted with bits and processed.

By adopting the above manner, based on the comparison between the number of RBs in the resource block of the second resource and the number of RBs in the physical uplink channel, the transmission manner of the second UCI is determined on the basis of ensuring that all bits of the first UCI are transmitted, that is, all bits or part of bits of the second UCI are transmitted or bits and processed of the second UCI are transmitted, so that more bits of the second UCI can be transmitted as much as possible, compared with the current second UCI which is only singly transmitted or bits and processed of the second UCI, and thus, the performance of physical uplink channel transmission can be ensured as much as possible.

In a possible implementation manner, the second resource is determined according to the number of bits of the first UCI, the number of bits of cyclic redundancy check of the first UCI, the first code rate, the number of bits of the second UCI, the number of bits of cyclic redundancy check of the second UCI, and the second code rate.

In a possible implementation, the number of resource blocks RB of the second resource satisfies the following condition:

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, checked for cyclic redundancy code of said first UCI _m For the modulation scheme, r ₁ Is the first code rate, O ₂ Is the number of bits of the second UCI, O _CRC2 Number of bits, r, for cyclic redundancy check of the second UCI ₂ Is the second code rate and is a bit rate of the first code rate,

a minimum number of RBs required for transmission of the first UCI,

a minimum number of RBs required for transmission of the second UCI,

for the number of symbols available to carry UCI,

for the number of resource elements RE available for carrying UCI within one RB,

a number of resource blocks, RBs, for the second resource.

By adopting the method, the number of the Resource Blocks (RB) of the second resource can be accurately calculated, and on the basis of the effect, the size relationship between the number of the Resource Blocks (RB) of the second resource and the number of the RBs in the physical uplink channel can be more accurately determined.

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, checked for cyclic redundancy code of said first UCI _m For the modulation scheme, r ₁ Is the first code rate, O ₂ Is the number of bits of the second UCI, O _CRC2 Number of bits, r, for cyclic redundancy check of said second UCI ₂ For the second code rate, the first code rate is set,

a number of resource blocks RB that are the second resource,

for the number of symbols available to carry UCI within one RB,

the number of resource elements RE that can be used to carry UCI in one symbol.

By adopting the method, the number of the Resource Blocks (RB) of the second resource can be accurately calculated, and on the basis of the effect, the size relation between the number of the Resource Blocks (RB) of the second resource and the number of the RBs in the physical uplink channel can be more accurately determined.

In a sixth aspect, the present application provides a communication method, including: sending indication information, wherein the indication information is used for indicating a first code rate and a second code rate; determining first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, wherein the first UCI and the second UCI are independently coded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; determining a second resource according to the first UCI, the first code rate, the second UCI and the second code rate; transmitting all bits of the first UCI and all bits of the second UCI on the second resource, wherein the number of Resource Blocks (RBs) of the second resource is less than or equal to the number of RBs in the physical uplink channel; or, the number of resource blocks RB of the second resource is greater than the number of RBs in the physical uplink channel, all bits of the first UCI are transmitted on the physical uplink channel, and all bits or part of bits of the second UCI are transmitted on the physical uplink channel or the second UCI subjected to bit and processing is transmitted.

By adopting the above method, based on the comparison between the number of RBs in the resource block of the second resource and the number of RBs in the physical uplink channel, the transmission mode of the second UCI is determined on the basis of ensuring the transmission of all bits of the first UCI, that is, the transmission of all bits or part of bits of the second UCI or the transmission of the processed bits and the processed second UCI is performed, and thus, more bits of the second UCI can be transmitted as much as possible compared with the conventional method in which only part of bits or processed bits of the second UCI are transmitted in one step, and thus, the performance of physical uplink channel transmission can be ensured as much as possible.

In a possible implementation, the second resource is determined according to the number of bits of the first UCI, the number of bits of the cyclic redundancy check of the first UCI, the first code rate, the number of bits of the second UCI, the number of bits of the cyclic redundancy check of the second UCI, and the second code rate.

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, checked for cyclic redundancy code of said first UCI _m For the modulation scheme, r ₁ Is the first code rate, O ₂ Is the number of bits of the second UCI, O _CRC2 Number of bits, r, for cyclic redundancy check of said second UCI ₂ Is the second code rate and is a bit rate of the first code rate,

a minimum number of RBs required for transmission of the first UCI,

required for transmitting the second UCIThe minimum number of RBs of (a) is,

for the number of symbols available to carry UCI,

a number of resource blocks, RBs, for the second resource.

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, for cyclic redundancy check of the first UCI _m For modulation scheme, r ₁ Is the first code rate, O ₂ Is the number of bits of the second UCI, O _CRC2 Number of bits, r, for cyclic redundancy check of said second UCI ₂ For the second code rate, the first code rate is set,

the number of resource blocks RB for the second resource,

is oneThe number of symbols within the RB available to carry UCI,

is the number of Resource Elements (REs) available for carrying UCI in one symbol.

In a seventh aspect, the present application provides a terminal device, including: a receiving unit, configured to receive indication information, where the indication information is used to indicate a first code rate and a second code rate; a processing unit, configured to determine first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, where the first UCI and the second UCI are independently encoded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; the processing unit is further configured to determine a second resource according to the first UCI, the first code rate, the second UCI, and the second code rate; a sending unit, configured to transmit all bits of the first UCI and all bits of the second UCI on the second resource, where the number of Resource Blocks (RBs) of the second resource is less than or equal to the number of RBs in the physical uplink channel; or the number of resource blocks RB of the second resource is greater than the number of RB in the physical uplink channel, and the sending unit is configured to transmit all bits of the first UCI on the physical uplink channel, and transmit all or part of bits of the second UCI or transmit the second UCI subjected to bit and processing on the physical uplink channel.

In a possible implementation manner, the processing unit is further configured to determine the second resource according to the number of bits of the first UCI, the number of bits of cyclic redundancy check of the first UCI, the first code rate, the number of bits of the second UCI, the number of bits of cyclic redundancy check of the second UCI, and the second code rate.

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, checked for cyclic redundancy code of said first UCI _m For the modulation scheme, r ₁ Is the first code rate, O ₂ Is a number of bits of the second UCI,O _CRC2 number of bits, r, for cyclic redundancy check of said second UCI ₂ For the second code rate, the first code rate is set,

a minimum number of RBs required for transmission of the first UCI,

a minimum number of RBs required for transmission of the second UCI,

for the number of symbols available to carry UCI,

the number of resource elements RE that can be used to carry UCI in one RB,

a number of resource blocks, RBs, for the second resource.

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, for cyclic redundancy check of the first UCI _m For the modulation scheme, r ₁ Is the first code rate, O ₂ Is that theNumber of bits of the second UCI, O _CRC2 Number of bits, r, for cyclic redundancy check of said second UCI ₂ Is the second code rate and is a bit rate of the first code rate,

a number of resource blocks RB that are the second resource,

for the number of symbols available to carry UCI within one RB,

the number of resource elements RE that can be used to carry UCI in one symbol.

In an eighth aspect, the present application provides a network device, including: a sending unit, configured to send indication information, where the indication information is used to indicate a first code rate and a second code rate; determining first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, wherein the first UCI and the second UCI are independently coded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; a processing unit, configured to determine a second resource according to the first UCI, the first code rate, the second UCI, and the second code rate; a receiving unit, configured to transmit all bits of the first UCI and all bits of the second UCI on the second resource, where the number of Resource Blocks (RBs) of the second resource is less than or equal to the number of RBs in the physical uplink channel; or, the number of resource blocks RB of the second resource is greater than the number of RBs in the physical uplink channel, and the receiving unit is configured to transmit all bits of the first UCI on the physical uplink channel, and transmit all bits or part of bits of a second UCI or transmit a bit-and-processed second UCI on the physical uplink channel.

In a possible implementation manner, the processing unit is configured to determine the second resource according to the number of bits of the first UCI, the number of bits of cyclic redundancy check of the first UCI, the first code rate, the number of bits of the second UCI, the number of bits of cyclic redundancy check of the second UCI, and the second code rate.

a minimum number of RBs required for transmission of the first UCI,

a minimum number of RBs required for transmission of the second UCI,

for the number of symbols available to carry UCI,

the number of resource elements RE that can be used to carry UCI in one RB,

a number of resource blocks, RBs, for the second resource.

a number of resource blocks RB that are the second resource,

for the number of symbols available to carry UCI within one RB,

the number of resource elements RE that can be used to carry UCI in one symbol.

A ninth aspect provides a communication device comprising a transceiving component and a processor, such that the communication device performs the method of the first aspect or any of the possible implementations of the first aspect, or performs the method of the fifth aspect or any of the possible implementations of the fifth aspect. The communication device may be a terminal device or a baseband chip. If the communication device is a terminal device, the transceiver component may be a transceiver, and if the communication device is a baseband chip, the transceiver component may be an input/output circuit of the baseband chip.

In a tenth aspect, a communication device is provided that includes a transceiver component and a processor. Causing the communication device to perform the method of the second aspect or any of the possible implementations of the second aspect, or the method of the sixth aspect or any of the possible implementations of the sixth aspect. The communication device may be a network device or a baseband chip. If the communication device is a network device, the transceiver component may be a transceiver, and if the communication device is a baseband chip, the transceiver component may be an input/output circuit of the baseband chip.

In an eleventh aspect, there is provided a computer program product comprising: computer program code for causing a terminal device to perform the method of any one of the above possible implementations of the first aspect or the first aspect, or to perform the method of any one of the above possible implementations of the fifth aspect or the fifth aspect, when the computer program code is run by the terminal device.

In a twelfth aspect, there is provided a computer program product comprising: computer program code which, when run by a network device, causes the network device to perform the method of any one of the possible implementations of the second aspect or the second aspect described above, or the method of any one of the possible implementations of the sixth aspect or the sixth aspect.

In a thirteenth aspect, a computer-readable medium is provided, which stores program code comprising instructions for performing the method of the first aspect or any one of the possible implementations of the first aspect, or for performing the method of the fifth aspect or any one of the possible implementations of the fifth aspect.

In a fourteenth aspect, a computer-readable medium is provided, which stores program code comprising instructions for performing the method of the second aspect or any one of the possible implementations of the second aspect, or for performing the method of the above-mentioned sixth aspect or any one of the possible implementations of the sixth aspect.

A fifteenth aspect provides a communication system, wherein the communication system includes the terminal device described in any one of the possible implementations of the third aspect or the third aspect and the network device described in any one of the possible implementations of the fourth aspect or the fourth aspect.

A sixteenth aspect provides a communication system, which includes the terminal device described in any one of the possible implementation manners of the seventh aspect or the seventh aspect and the network device described in any one of the possible implementation manners of the eighth aspect or the eighth aspect.

In a seventeenth aspect, a communication apparatus is provided, where the communication apparatus may be the terminal device in the above method embodiment, or a chip provided in the terminal device. The communication device comprises a communication interface, a processor and optionally a memory. Wherein the memory is adapted to store a computer program or instructions, and the processor is coupled to the memory and the communication interface, and when the processor executes the computer program or instructions, the communication apparatus is adapted to perform the method performed by the terminal device in the above-mentioned method embodiments.

In an eighteenth aspect, a communication apparatus is provided, where the communication apparatus may be the network device in the foregoing method embodiments, or a chip disposed in the network device. The communication device comprises a communication interface, a processor and optionally a memory. Wherein the memory is used for storing a computer program or instructions, and the processor is coupled with the memory and the communication interface, and when the processor executes the computer program or instructions, the communication device is caused to execute the method executed by the network device in the above method embodiment.

In a nineteenth aspect, the present application provides a chip system, which includes a processor, configured to implement the functions of the terminal device in the methods of the above aspects. In one possible design, the system-on-chip further includes a memory for storing program instructions and/or data. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a twentieth aspect, the present application provides a chip system, which includes a processor for implementing the functions of the network device in the method of the above aspects. In one possible design, the system-on-chip further includes a memory to store program instructions and/or data. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In this application, when the same physical uplink channel is multiplexed to transmit the first UCI and the second UCI, if all bits of the first UCI and all bits of the second UCI cannot be transmitted, on the basis of ensuring that all bits of the first UCI can be transmitted, the transmission mode of the second UCI is determined, that is, all bits or part bits of the second UCI are transmitted or the second UCI is processed, so that the accuracy of the transmission of the second UCI can be improved, and the performance degradation of a scene corresponding to the second UCI, which is caused by the fact that a terminal device simply discards or binds part bits of the second UCI at once at present, is avoided.

Drawings

FIG. 1 is a diagram of an exemplary application scenario applicable to embodiments of the present application;

FIG. 2 is a schematic flow chart diagram of an exemplary communication method according to an embodiment of the present application;

FIG. 3 is a schematic flow chart diagram of another communication method according to an embodiment of the present application;

FIG. 4 is a schematic flow chart diagram of a further example of a communication method according to an embodiment of the present application;

FIG. 5 is a diagram illustrating an example of resource allocation according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an example of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. 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.

It should be understood that the manner, the case, and the classification of the category in the embodiment of the present application are only for convenience of description, and should not be construed as a particular limitation, and features in various manners, cases, and cases may be combined without contradiction.

It should also be understood that "first" or "second" or "third" in the embodiments of the present application are merely for distinction and should not constitute any limitation to the present application.

The method of the embodiment of the present application can be applied to a Long Term Evolution (LTE) system, a long term evolution-advanced (LTE-a) system, an enhanced Long Term Evolution (LTE) -advanced (LTE), a fifth generation (the 5th generation, 5g) mobile communication system new radio, NR) system, and similar wireless communication systems, such as wireless fidelity (WiFi), worldwide Interoperability for Microwave Access (WIMAX), a future sixth generation (6 g) system, and a third generation partnership project (3 pp) related cellular system.

In the embodiment of the present application, a network device is an apparatus deployed in a radio access network to provide a wireless communication function for a terminal device. The network devices may include various forms of base stations, macro base stations, micro base stations (also referred to as small stations), relay stations, access points, etc., or various network element devices in a Core Network (CN). In systems using different radio access technologies, the names of devices that function as base stations may differ. For example, the network device may be an Access Point (AP) in a Wireless Local Area Network (WLAN), or a base station (BTS) in a global system for mobile communication (GSM) or Code Division Multiple Access (CDMA). But also a node B in a 5G system (5G nodeB, gnb) or an evolved node B in an LTE system (eNB or eNodeB). Alternatively, the network device may also be a Node B of a third generation (3 rd generation, 3G) system, and in addition, the network device may also be a relay station or AN access point, or a vehicle-mounted device, a wearable device, and a network device in a (wireless) access network (R) AN) network device in a fifth-generation communication (5G) network or a network device in a Public Land Mobile Network (PLMN) network for future evolution, and the like.

The terminal device in this embodiment may also be referred to as a User Equipment (UE), an access terminal, a terminal equipment unit (subscriber unit), a terminal equipment station, a Mobile Station (MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal (terminal), a wireless communication device, a terminal equipment agent, or a terminal equipment device. The terminal devices may include a variety of handheld devices, vehicle mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication capabilities. But may also include subscriber units, cellular phones (cellular phones), smart phones (smart phones), wireless data cards, personal Digital Assistants (PDAs), tablet computers, wireless modems (modems), handheld devices (handsets), laptop computers (laptop computers), machine Type Communication (MTC) terminals, stations (STs) in Wireless Local Area Networks (WLANs). Which may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, and a next generation communication system, e.g., a terminal device in a 5G network or a terminal device in a future evolved PLMN network, etc.

For the sake of easy understanding, the basic concepts related to the embodiments of the present application will be briefly described below.

Acknowledgement (ACK): its role is as a response confirming correct receipt of the data.

Negative-acknowledgement (NACK): which acts as a response confirming that the data was not correctly received.

Hybrid automatic repeat request acknowledgement (HARQ-ACK): the role of the method is to respond to whether the data is correctly received after the data is received, and specifically, the method may include ACK or NACK.

Uplink Control Information (UCI) includes one or more of the following: scheduling Request (SR), HARQ-ACK, and Channel State Information (CSI). The CSI may specifically include one or more of the following: a Precoding Matrix Indication (PMI), a Rank Indication (RI), a Layer Indication (LI), channel Quality Information (CQI), a channel state information Reference Signal (RS) resource indication (CSI-RS resource indicator (CRI), a Reference Signal Received Power (RSRP), a signal to interference noise ratio (SINR). Among these CSIs, some CSIs may be concatenated and referred to as first-part CSI (CSI part 1) or second-part CSI (CSI part 2). The CSI part 1 may include CRI, RI, wideband CSI of a first transport block (first transport block), sub-band differential CQI of the first Transport Block (TB), and the like. The second partial CSI (CSI part 2) may include wideband CQI, LI, etc. of the second Transport Block (TB). The CSI part 1 and CSI part 2 specifically include which CSI the present invention is not limited.

The priority of the UCI may be related to information included in the UCI, a physical uplink channel carrying the UCI, a cell, periodicity, and other factors. Specifically, CSI is taken as an example for explanation. Each CSI report (CSI report) may define a priority value (priority value), pri _iCSI (y,k,c,s)＝2·N _cells ·M _s ·y+N _cells ·M _s ·k+M _s C + s, the smaller the value, the higher the priority. Wherein y =0 when aperiodic (aperiodic) CSI is reported on a PUSCH. When semi-static (semi-persistent) CSI reporting is carried on PUSCH, y =1. When semi-static (semi-persistent) CSI reporting is carried on PUCCH, y =2. When PUCCH is loadedAnd when the carrier period (period) CSI is reported, y =3. K =0 if the CSI comprises RSRP or SINR, otherwise k =1.c is the serving cell index, N _cells Is the number of cells, s is the index of the reporting configuration, M _s The maximum value of the number of CSI reporting configurations.

The priority of the UCI may also be configured by higher layer signaling or indicated by Downlink Control Information (DCI). For example, when DCI schedules HARQ-ACK, the priority of HARQ-ACK may be indicated. Indicating whether the HARQ-ACK is high priority or low priority if there are only two priorities.

The priority of UCI may also be traffic related, e.g., UCI for mtc is low priority relative to UCI for eMBB. In addition, UCI between different PUCCH groups may also define a priority, for example, UCI in PUCCH group (group) 0 has a higher priority than UCI in PUCCH group (group) 1. Or UCI between different base stations, or UCI between different UEs, or UCI between different Transmission Reception Points (TRPs), or priority between them may also be defined.

Resource Block (RB): a resource of 12 subcarriers consecutive in frequency and one slot (slot) in time domain (14 symbols per slot) is called an RB. Alternatively, 12 subcarriers consecutive in frequency are referred to as one RB.

Resource Element (RE): one subcarrier in frequency and one symbol in time domain (symbol), called one RE.

And (3) encoding: including source coding and/or channel coding, which functions to match the information to be transmitted as closely as possible to the transmission channel and provides some protection of the information from interference, improving the effectiveness, accuracy and reliability of the information transmission.

Code rate: the code rate is a ratio of the number of information bits before encoding (or the number of Cyclic Redundancy Check (CRC)) to the number of information bits after encoding (or the number of CRC). Or, it may be a ratio of the number of information bits (or the number of CRCs) before encoding to the number of bits of the rate-matched output bit sequence.

Rate matching: different processing is carried out according to different code stream lengths after channel coding, so that the code stream length is matched with the actual transmission capacity, and the rate matching is strongly related to the coding mode. After determining the PUCCH, a total rate matching output sequence length E may be determined _tot As shown in table 1. Wherein,

is PUCCH format (format) x (x =2 or 3 or 4), the number of symbols available for carrying UCI,

is the spreading factor (spreading factor) in PUCCH format x,

the number of Physical Resource Blocks (PRBs) for carrying UCI in PUCCH format x,

the number of RBs of the PUCCH configured by the higher layer may be less than or equal to.

TABLE 1

Fig. 1 is a diagram of an exemplary application scenario applicable to an embodiment of the present application. As shown in fig. 1, the application scenario includes a network device, and the application scenario further includes a plurality of terminal devices, such as terminal device #1 and terminal device #2, located within the coverage area of the network device, and the network device can communicate with the plurality of terminal devices. It should be understood that only two terminal devices within the coverage of the network device are illustrated in fig. 1 as an example. Obviously, there may be more terminal devices within the coverage of the network device.

In this scenario, when multiple UCIs that are independently encoded are transmitted in order to efficiently utilize resources, for example, the multiple UCIs are UCIs of different priorities, multiple UCIs are often transmitted in a multiplexing manner, but if resources allocated to the terminal device by the network device are not enough to transmit the multiple UCIs, an appropriate multiplexing manner needs to be sought, so as to ensure transmission of more UCIs as far as possible.

The communication method according to the embodiment of the present application is described in detail below with reference to fig. 2 to 5.

Fig. 2 is a schematic flow chart of an example of a communication method 100 according to an embodiment of the present application.

S110, receiving first indication information, where the first indication information is used to indicate a first code rate and a second code rate.

In one possible implementation, the first indication information may be Downlink Control Information (DCI).

For example, a terminal device receives a first DCI indicating a first code rate and a second code rate. Specifically, when there are two PUCCH sets (a and B), set a corresponds to the first UCI, that is, the PUCCH in set a may be used to carry high-priority UCI. Set B corresponds to the second UCI, i.e. the PUCCH in set B may be for carrying low priority UCI. The first DCI indicates a first PUCCH, the first PUCCH belongs to the set A, and the first PUCCH corresponds to a code rate, and the code rate is a first code rate. According to the format of the first PUCCH, a code rate corresponding to a second PUCCH with the same format (format) is determined in another PUCCH set (i.e., set B), that is, the second code rate. For example, if the first PUCCH format is format 2, the second code rate is the code rate of PUCCH format 2 in set B. The first DCI may also be a semi-persistent scheduling (SPS) DCI for activating SPS or a DCI for scheduling downlink data.

For another example, the terminal device receives a first DCI, where the first DCI indicates one first PUCCH, and the first PUCCH belongs to set a, but the first PUCCH corresponds to two code rates, one code rate is a first code rate, and the other code rate is a second code rate.

For another example, the terminal device receives a first DCI and a second DCI, where the first DCI indicates a first code rate and the second DCI indicates a second code rate. Specifically, the first DCI may indicate a first PUCCH, where the first PUCCH belongs to the set a, and a code rate corresponding to the first PUCCH is a first code rate. And the second DCI indicates a second PUCCH, the second PUCCH belongs to the set B, and the code rate corresponding to the second PUCCH is the second code rate. The receiving order of the first DCI and the second DCI is not limited in the present invention, and the second DCI may be received first, and then the first DCI is received, or vice versa.

In a possible implementation, the first indication information is higher layer configuration information, for example, a first PUCCH of SPS configuration, and a code rate corresponding to the first PUCCH is a first code rate. And according to the format of the first PUCCH, determining a code rate corresponding to a second PUCCH with the same format in the other PUCCH set, namely the code rate is the second code rate.

For another example, the terminal device receives first higher layer configuration information and second higher layer configuration information, where the first higher layer configuration information indicates a first code rate and the second higher layer configuration information indicates a second code rate.

Optionally, second indication information is received, the second indication information being used for indicating the first resource. When the first resource is a PUCCH resource, a PUCCH resource subset needs to be determined according to a UCI load (payload), and then the second indication information indicates a resource used for transmitting the first UCI and the second UCI in the PUCCH resource subset, where the content of the second indication information may be included in the first indication information. When the first resource is a PUSCH resource, the second indication information indicates a scaling factor representing a proportion of the total resources available for carrying the first UCI and the second UCI in the PUSCH to the PUSCH resource.

The first resource may be a PUCCH resource or a PUSCH resource, and the application is not limited.

The following describes the embodiments of the present application by taking the first resource as a PUCCH resource as an example, that is, the first UCI and the second UCI are UCIs to be carried by a Physical Uplink Control Channel (PUCCH).

And S120, determining the first UCI and the second UCI.

Specifically, bit sequences and the number of bits of the first UCI and the second UCI are determined.

For example, the bit sequence of HARQ-ACK is

O ^HARQ-ACK For the number of bits of HARQ-ACK, the bit sequence of SR can be expressed as

O ^SR The number of bits of the SR. The first UCI is HARQ-ACK, that is, the bit sequence of the first UCI is

At this time, the bit number O of the first UCI ^UCI1 ＝O ^HARQ-ACK . Or, the first UCI includes HARQ-ACK and SR, and the bit sequence of the first UCI is

At this time O ^UCI1 ＝O ^HARQ-ACK +O ^SR 。

Similarly, the second UCI may be another HARQ-ACK bit sequence

Alternatively, the second UCI may further include another SR sequence

The bit sequence of the second UCI at this time is

The bit number of the second UCI is O ^UCI2 ＝O ^HARQ-ACK2 +O ^SR2 。

The first code rate corresponds to a first UCI, and the second code rate corresponds to a second UCI. The first code rate corresponding to the first UCI means a code rate of a PUCCH or a code rate of a multiplexed PUCCH if the first UCI is transmitted separately using the PUCCH before multiplexing the first UCI and the second UCI. The second code rate corresponds to the second UCI, which means a code rate of one PUCCH if the second UCI is transmitted separately using the PUCCH before multiplexing the first UCI and the second UCI. For example, if the first UCI is carried through PUCCH #1, the second UCI is carried through PUCCH #2, and PUCCH #1 and PUCCH #2 overlap in the time domain, the first UCI and the second UCI are multiplexed and carried through PUCCH # 3. PUCCH #3 may be the same as or different from PUCCH #1. At this time, the code rate of PUCCH #1 is the first code rate, or the code rate of PUCCH #3 is the first code rate, and the code rate of PUCCH #2 is the second code rate. It should be understood that the code rate of the PUCCH refers to a code rate of a PUCCH format (format). When the format (format) of the PUCCH is different before and after multiplexing, for example, PUCCH #2 and PUCCH #3 are different formats (formats), the code rate in the same format (format) as PUCCH #3 in the PUCCH set in which PUCCH #2 is located may be the second code rate.

In a possible implementation manner, the first code rate is a maximum code rate corresponding to a first UCI indicated by the network device, and the second code rate is a maximum code rate corresponding to a second UCI indicated by the network device.

The first UCI and the second UCI may use the same coding scheme or different coding schemes, and the coding scheme may be polar coding (polar coding) or channel coding of small block length (channel coding of small block length hs). For example, the first UCI (second UCI) is a high-priority UCI, and the second UCI (first UCI) is a low-priority UCI, where the high-priority UCI may correspond to a low latency, high reliability communication (URLLC) scenario, and the low-priority UCI may correspond to an enhanced mobile bandwidth (eMBB) scenario, and their configurations are individually configured; alternatively, the first UCI and the second UCI are two independently encoded UCI without a priority division. The independent encoding is to encode a bit sequence of the first UCI and to encode a bit sequence of the second UCI.

The types of the first UCI and the second UCI may be one or more of the following types: scheduling Request (SR), HARQ-ACK, channel State Information (CSI). The present application does not limit the types of UCI #1 and UCI #2.

It should be noted that the types of the first UCI and the second UCI may be the same or different.

And S130, determining a third code rate.

Specifically, the third code rate is determined according to the resource of the physical uplink channel, the first UCI, and the second UCI.

In one possible embodiment, the third code rate is determined according to one or more of the following parameters: the bit number of the second UCI, the bit number of the cyclic redundancy check of the second UCI, the bit number of the first UCI, the bit number of the cyclic redundancy check of the first UCI, the first code rate, the first modulation mode and the first total rate matching output sequence length.

And S140, transmitting the first UCI and the second UCI.

Specifically, when the third code rate is greater than the first threshold, all bits of the first UCI and part of bits of the second UCI are sent through the physical uplink channel, that is, part of information bits of the second UCI may be discarded, or all bits of the first UCI and the second UCI subjected to bit and processing are sent, that is, some bits of the second UCI may be subjected to bit and processing to transmit the second UCI;

or,

and when the third code rate is less than or equal to the first threshold, transmitting all bits of the second UCI and all bits of the first UCI through a physical uplink channel.

In a possible embodiment, when the third code rate is greater than the first threshold, the partial bits for transmitting the second UCI or the partial information bits for discarding the second UCI are discarded one by one in a sequence from the back to the front of the bit sequence of the second UCI until the third code rate is less than or equal to the first threshold, which means that the code rate of the PUCCH for transmitting the second UCI does not exceed the first threshold. For example, the entire bit sequence of the second UCI is

Since the third code rate is greater than the first threshold, it can be discarded in sequence

Up toUntil a third code rate calculated from the second UCI after discarding some bits is less than or equal to the first threshold. Therefore, more bit sequences of the second UCI can be transmitted as much as possible, and meanwhile, as the code rate does not exceed the first threshold, the transmission performance of the PUCCH can be ensured as much as possible.

In a possible embodiment, when the third code rate is greater than the first threshold, part of the bits of the second UCI are transmitted or part of the information bits of the second UCI are discarded according to the type of the bit sequence of the second UCI. Optionally, discarding is performed according to a priority of a bit sequence type of the second UCI, e.g., the bit sequence of the second UCI is a bit sequence type of the second UCI

Wherein O is ^CSIpart2 The type of the bit sequence is the number of bits of the second partial CSI. Assuming that the priority of the second partial CSI is lower than the SR and the priority of the SR is lower than the HARQ-ACK, since the third code rate is greater than the first threshold, the bits of the second partial CSI type, the bits of the SR type, \8230, may be sequentially discarded until the third code rate is less than or equal to the first threshold. Therefore, more bit sequences of the second UCI can be transmitted as far as possible, and meanwhile, the performance of PUCCH transmission is guaranteed as far as possible. Optionally, the second UCI may be discarded from the back to the front according to the order of the bit sequence type of the second UCI, which is similar to the above-mentioned discarding from the back to the front according to the order of the bit sequence of the second UCI, and is not described herein again.

It should be noted that the bit and process is a binary bit and operation. For example, two bits are b0 and b1, and the bit and the process result in bit b2. B2 is 1 only if b0 and b1 are both 1, otherwise b2 is 0. And may also perform bit and processing on 3 bits, or perform bit and processing on 4 bits, which is not described herein again. The bits and processing may be performed on some bits of the second UCI according to a sequence of bits of the second UCI from back to front, or according to a type of the bits of the second UCI, which is similar to the above method for discarding part of information bits of the second UCI and is not described herein again.

In one possible implementation, the first threshold is greater than or equal to the second code rate.

When the second UCI is transmitted with a higher code rate, a higher signal to interference plus noise ratio (SINR) is required. In order to ensure a certain SINR, the transmit power may need to be increased, but the increase of the transmit power may also cause increased interference, so that the second UCI cannot be transmitted by using the method of increasing the code rate, that is, how to transmit the second UCI needs to be determined according to the magnitude relationship between the third code rate and the first threshold. It should be understood that, since the magnitude relation between the third code rate and the first threshold needs to be determined, the first threshold may also be understood as one code rate or one maximum code rate.

In a possible embodiment, the first threshold value is a fixed value, for example 1 or 0.8.

In a possible implementation manner, the value of the first threshold is the minimum value between the second threshold and the first value, where the value of the second threshold is 1 or 0.8, and the first value is the product of the second code rate and the first coefficient.

In one possible embodiment, the first coefficient is predefined or network device indicated.

In a possible implementation manner, the value of the first threshold is a code rate obtained by increasing N for an index (each index corresponds to one code rate) on the basis of the second code rate, where N is a positive integer and is greater than or equal to 1.

In one possible embodiment, N is predefined or indicated by the network device.

In a possible implementation, a second resource may be further determined, and when the number of RB resource blocks of the second resource is less than or equal to the number of RB in the physical uplink channel, the first UCI and the second UCI may be transmitted on the second resource, that is, if the minimum number of RB required for transmitting all bits of the first UCI and the second UCI is less than or equal to the number of RB of the resource allocated to the terminal device by the network device, all bits of the first UCI and the second UCI may be transmitted on the resource of the minimum number of RB; or,

when the number of Resource Blocks (RBs) of the second resource is greater than the number of RBs in the physical uplink channel, transmitting the first UCI on the physical uplink channel, and transmitting all bits or part of bits of the second UCI or transmitting the second UCI subjected to bit sum processing on the physical uplink channel, that is, if the minimum number of RBs required for transmitting all bits of the first UCI and the second UCI is greater than the number of RBs of the resource of the network equipment for allocating the terminal equipment, all bits of the second UCI can be transmitted by increasing the code rate of the second UCI, and part of bits of the second UCI can be discarded or bits and processing are performed on the bits of the second UCI to transmit the second UCI. Optionally, in this case, the method of transmitting the first UCI and the second UCI according to the relationship between the third code rate and the first threshold may also be combined, and details are not repeated here.

Wherein the second resource is determined according to a second parameter, the second parameter including one or more of: the number of bits of the first UCI, the number of bits of cyclic redundancy check of the first UCI, the first code rate, the number of bits of the second UCI, the number of bits of cyclic redundancy check of the second UCI, the second code rate, the first modulation scheme, the number of symbols that can be used for carrying the UCI, and the number of REs that can be used for carrying the UCI in one Resource Block (RB).

It should be noted that, although the method 100 is described above by taking the terminal device as an example, when the network device is taken as a main body, the method is also applicable to the method S120 to S140, and the first indication information in S110 is determined by the network device, which is not described herein again.

According to the method, on the basis of the code rate of the original low-priority UCI, a certain code rate can be increased to continue the low-priority UCI. Since the transmission power may be increased if the high-priority PUCCH is used for transmission, a certain code rate may be increased to transmit the low-priority UCI if conditions allow it, so as to avoid performance degradation of a scenario corresponding to the low-priority UCI caused by simply discarding the low-priority UCI or performing bit and processing on the low-priority UCI.

The communication method according to the embodiment of the present application is described in detail below with reference to specific embodiments, as shown in fig. 3, fig. 3 is a schematic flow chart of another communication method 200 according to the embodiment of the present application.

In S210, RAN #1 determines and transmits instruction information #1 for instructing bitrate #1 (r) corresponding to UCI #1 ₁ ) Code rate #2 (r) corresponding to UCI #2 ₂ )。

It should be noted that RAN #1 may be understood as a radio access network device or a base station.

For details of the UCI #1 and the UCI #2, reference is made to the description of the first UCI and the second UCI in the method 100, and details are not repeated herein.

In one possible embodiment, RAN #1 may also transmit indication information #2, where the indication information #2 is used to indicate resource #1 configured for UE #1.

The indication information #2 indicates the resource #1. When the resource #1 is a PUCCH resource, a PUCCH resource subset needs to be determined according to a UCI load (payload) size, and then the second indication information indicates the resource #1 used for transmitting the first UCI and the second UCI in the PUCCH resource subset, and the indication information #2 may be included in the indication information #1. When the resource #1 is a PUSCH resource, the indication information #2 indicates a scaling factor representing a ratio of total resources available for carrying UCI #1 and UCI #2 in the PUSCH to the PUSCH resource. The following method is described in the present application, taking the example that resource #1 is a PUCCH resource.

In S220, UE #1 determines code rate #3 (r) ₃ )。

Specifically, the code rate #3 determined by the UE #1 satisfies the following condition:

wherein, O ₁ Number of bits of UCI #1, O _CRC1 Is UNumber of bits, Q, of cyclic redundancy check of CI #1 _m For modulation scheme, r ₁ Is code rate #1, E _tot Output sequence length, E, for total rate matching _UCI-L Matching the length of the output sequence for the rate corresponding to UCI #2, O ₂ Number of bits of UCI #2, O _CRC2 The number of bits checked for cyclic redundancy code of UCI #2. It should be noted that if E _UCI-L A value of 0 indicates that only UCI #1 information is transmitted and UCI #2 information is not transmitted.

Indicating rounding up.

In S230, UE #1 determines resource #2 for transmission of UCI #1 and UCI #2.

The following communication method is described with resource #2 as PUCCH resource #2.

Here, PUCCH resource #2 is a part or all of PUCCH resource #1.

The following communication method will be described with an example in which UCI #1 is a high-priority UCI and UCI #2 is a low-priority UCI.

Specifically, if UE #1 can use the code rate r on PUCCH resource #1 ₁ All information bits of UCI #1 are transmitted and the coding rate r can be set on PUCCH resource #1 ₂ To transmit all information bits of UCI #2, UE #1 takes the smallest PUCCH resource capable of transmitting all information bits of UCI #1 and UCI #2 as PUCCH resource #2.UE #1 on PUCCH resource #2 with code rate r ₁ To transmit all information bits of UCI #1 and at a code rate r ₂ All information bits of UCI #2 are transmitted.

If UE #1 can use the code rate r in PUCCH resource #1 ₁ All information bits of UCI #1 are transmitted, but PUCCH resource #1 cannot be coded at code rate r ₂ When all information bits of UCI #2 are transmitted, UE #1 sets all resources of PUCCH resource #1 as PUCCH resource #2.UE #1 on PUCCH resource #2 with code rate r ₁ To transmit all information bits of UCI #1, and when the code rate #3 (r) ₃ ) If the number of bits is greater than the first threshold, the UE #1 transmits a part of the UCI #2 information bits or transmits the UCI #2 subjected to bit and processing (referred to as transmission mode b), and codes the part of the UCI #2 information bits or the UCI #2When the rate #3 is less than or equal to the first threshold, the UE #1 transmits all information bits of the UCI #2 (referred to as transmission scheme a).

If UE #1 cannot perform the coding rate r on PUCCH resource #1 ₁ All information bits of UCI #1 are transmitted and it is not possible to use the code rate r on PUCCH resource #1 ₂ When all information bits of UCI #2 are transmitted, UE #1 sets all resources of PUCCH resource #1 as PUCCH resource #2.UE #1 transmits all information bits of UCI #1 on PUCCH resource #2, when the code rate of UCI #1 is greater than code rate r ₁ 。

The transmission schemes a and b are specifically as follows (as can be understood in conjunction with fig. 5, fig. 5 is an exemplary resource allocation diagram in the embodiment of the present application to illustrate PUCCH resource allocation of UCI #1 and UCI # 2):

transmission mode a

Transmitting all information bits of UCI #2, i.e. with a bit number of O ₂ Then to O ₂ Coding information bits of UCI #2, wherein the code rate #3r of the UCI #2 ₃ R greater than RAN #1 configuration ₂ 。

Transmission mode b

Discarding part of information bits of UCI #2, and the remaining information bits of UCI #2 being O ₂ '; or carrying out bit and processing on part of information bits of the UCI #2 to obtain the information bit number O of the processed UCI #2 ₂ '. For specific processing of the information bits of UCI #2, refer to the processing manner of the information bits of the second UCI in the method 100, and are not described herein again.

The following situations can be specifically classified to determine the transmission mode:

case 1: if r is ₃ ≤r _max And processing according to the transmission mode a, otherwise, processing according to the transmission mode b.

r _max The value is 1 or 0.8, and other values are also possible, and the present application is not limited. At this time, the first threshold is r _max 。

Case 2: if r is ₃ ≤min(r _max ,r ₂ γ), wherein γ>1, or, r ₃ ≤min(r _max ,r ₂ Y) where y<1, processing according to the transmission mode a, otherwiseAnd processing according to the transmission mode b.

Where γ may be predefined, or may be indicated to UE #1 by RAN #1. At this time, the first threshold is min (r) _max ,r ₂ γ) or min (r) _max ,r ₂ /γ)。

Case 3: if r is ₃ ≤r ₂ ^new And processing according to the mode a, otherwise, processing according to the mode b. At this time, the first threshold is r ₂ ^new 。

Wherein r is ₂ ^new Is at r ₂ Then, the code rate obtained by increasing the N-th rank (index increasing by N) is increased upward, where N may be predefined, or may be indicated to the UE #1 by the RAN #1. For example, as shown in Table 2, r ₂ Code rate r obtained by increasing 2 shifts by =0.25 ₂ ^new ＝0.45

TABLE 2

When treated in the manner b, O ₂ The calculation of' is any of the following ways:

wherein,

indicating a rounding down.

As shown in fig. 5, the resource occupied by UCI #1 and the resource occupied by UCI #2 are separated in the frequency domain, in practice, they may be separated in the time domain, as long as the resource occupied by UCI #1 and the resource occupied by UCI #2 do not overlap, fig. 5 is only an example, and there may be other mapping manners, and the present invention is not limited.

The UCI #1 and the UCI #2 determined by the method are independently coded, and rate matching is respectively carried out on the UCI #1 and the UCI #2 (or the UCI # 3), so as to generate rate matching output sequences corresponding to the UCI #1 and the UCI #2 respectively, and then modulation mapping is carried out.

It should be noted that the sequence between S230 and S220 is not limited.

S240, UCI is transmitted on PUCCH resource #2.

Specifically, UCI #1 and UCI #2 are transmitted on PUCCH resource #2.

At S250, the RAN #1 determines a code rate #3 according to a method similar to that at S220 and S230, and receives UCI.

The method comprises operations of demodulation, decoding and the like.

It should be understood that RAN #1 may also determine information such as code rate #3, transmission modes of UCI #1 and UCI #2, PUCCH resource #2, and the number of transmitted information bits according to a method similar to that in S220 and S230, and then indicate the information to UE #1, for which reference is made to S210 and S220 for specific content, which is not described herein again. Or, the base station directly indicates whether the transmission mode is a or b through signaling.

The UE #1 may further determine whether all information bits of the UCI #1 and UCI #2 can be transmitted from the PUCCH resource #1 according to the number of RBs, and a specific manner is as follows, which can be understood with reference to fig. 4, where fig. 4 is a schematic flowchart of another example of the communication method according to the embodiment of the present application.

At S310, RAN #1 determines and transmits indication information #2, and this indication information #2 indicates resource #1.

The specific content of the indication information #2 refers to the description in the method 200, and is not described herein again.

For the content of the resource #1, reference is made to the description of the method 200, which is not repeated herein, and the following description of the communication method is performed by taking the resource #1 as the PUCCH resource #1 as an example.

S320, UE #1 determines resource #2.

Specifically, UE #1 specifies resource #2 from UCI #1, UCI #2, and PUCCH resource #1, and the following description will be given taking resource #2 as PUCCH resource #2 as an example.

Wherein, the code rate corresponding to UCI #1 is r ₁ The code rate corresponding to UCI #2 is r ₂ . UCI #1, UCI #2, code rate r ₁ Sum code rate r ₂ For related contents, refer to the description of the method 200, and are not described in detail herein.

In a possible implementation manner, UCI #1 may correspond to a code rate r ₁ The code rate corresponding to UCI #2 is a first threshold. UCI #1, UCI #2, code rate r ₁ For the content related to the first threshold, refer to the description of the method 200, and will not be described herein. The code rate corresponding to UCI #1 is r ₁ The code rate corresponding to UCI #2 is r ₂ The following explanation of the communication method is made for the example.

The resource #2 is determined in two specific ways:

in a first mode

The minimum number of RBs required for UCI #1 is obtained according to the number of bits of UCI #1, the minimum number of RBs required for UCI #2 is obtained according to the number of bits of UCI #2, then the minimum total number of RBs required for transmitting all information bits of UCI #1 and UCI #2 is obtained, and then resource #2 is determined according to the size relationship between the total number of RBs and the number of RBs of resource #1.

Let the information bit number of UCI #1 be O ₁ The number of CRC bits of UCI #1 is O _CRC1 Determining the minimum number of RBs for transmitting UCI #1

The following conditions are satisfied:

wherein,

for the number of REs available to carry UCI within one RB,

in PUCCHNumber of symbols, Q, available to carry UCI _m In order to be a modulation mode, the method comprises the following steps of,

the value of (2) is required to satisfy both the formula (1) and the formula (2).

Let the information bit number of UCI #2 be O ₂ The number of CRC bits of UCI #2 is O _CRC2 Determining the minimum number of RBs for transmitting UCI #2

The following conditions are satisfied:

the value of (b) needs to satisfy both formula (3) and formula (4).

According to

And

determining a minimum total number of RBs capable of transmitting UCI #1 and UCI #2

As shown in equation (5):

when PUCCH format is 3, if

Is not equal to

I.e. not a multiple of 2, 3, 5, is increased to a multiple of 2, 3, 5. For example, if

Is 7, is increased to 8, if

If the value of (1) is 5, no increase is required. Wherein alpha is ₂ 、α ₃ 、α ₅ Is an integer greater than or equal to 0.

If it is not

Wherein,

if the number of RBs in PUCCH resource #1 allocated to RAN #1 is greater than the number of RBs in PUCCH resource #1, it is determined that the PUCCH resource #1 can transmit all information bits of UCI #1 and UCI #2, and in this case, PUCCH resource #2 is PUCCH resource #1

The resource of each RB occupies all symbols of PUCCH #1 in the time domain, starting from the starting RB of PUCCH #1.

If it is not

Then, it is determined that the PUCCH resource #1 cannot transmit all information bits of UCI #1 and UCI #2, and at this time, the PUCCH resource #2 may refer to the description in the method 200, which is not described herein again.

Mode two

The minimum total number of RBs required for transmitting all information bits of UCI #1 and UCI #2 is directly obtained from the number of bits of UCI #1 and the number of bits of UCI #2, and then resource #2 is determined from the size relationship between the total number of RBs and the number of RBs of resource #1. It is understood that this way is to calculate the minimum total number of RBs needed directly in RE granularity.

Let the information bit number of UCI #1 be O ₁ The number of CRC bits of UCI #1 is O _CRC1 The number of information bits of UCI #2 is O ₂ The number of CRC bits of UCI #2 is O _CRC2 Determining the minimum number of RBs capable of transmitting UCI #1 and UCI #2

The following conditions are satisfied:

wherein,

for the number of REs available to carry UCI within one RB,

is the number of symbols, Q, which can be used for carrying UCI in PUCCH _m For modulation scheme, r ₁ Code rate, r, configured for UCI #1 for RAN #1 ₂ A code rate configured for UCI #2 for RAN #1,

the number of REs required for transmission of UCI #1,

the number of REs required for transmission of UCI #2,

the value of (2) needs to satisfy both the formula (6) and the formula (7).

When PUCCH format is 3, if

Is not equal to

Is 7, is increased to 8, if

The value of (5) does not need to be increased.

If it is not

Wherein,

if the number of RBs in PUCCH resource #1 allocated to RAN #1 is greater than the number of RBs in PUCCH resource #1, it is determined that the PUCCH resource #1 can transmit all information bits of UCI #1 and all information bits of UCI #2, and the PUCCH resource #2 is the PUCCH resource #1

If it is not

Then, it is determined that the PUCCH resource #1 cannot transmit all information bits of UCI #1 and all information bits of UCI #2, and at this time, the PUCCH resource #2 may refer to the description in the method 200, which is not described herein again.

In addition, the method 300 determines whether all information bits of UCI #1 and all information bits of UCI #2 can be transmitted from PUCCH resource #1, and if not, the transmission is performed

In this case, for transmission schemes of UCI #1 and UCI #2, a combining method may be used200. That is, the method 200 and the method 300 are combined as a part of the embodiments of the present application and will not be described herein again.

Fig. 6 and 7 are schematic structural diagrams of possible communication devices provided by embodiments of the present application. The communication devices can realize the functions of the terminal device or the network device in the above method embodiments, and therefore, the beneficial effects of the above method embodiments can also be realized. In this embodiment, the communication apparatus may be a terminal device in the method 100, may also be a network device in the method 100, and may also be a module (e.g., a chip) applied to the terminal device or the access network device.

As shown in fig. 6, the communication device 400 includes a transceiver module 401 and a processing module 402. The communication apparatus 400 may be used to implement the functions of the terminal device or the network device in the method embodiment shown in fig. 2.

When the communication apparatus 400 is used to implement the functions of the terminal device in the embodiment of the method described in fig. 2: a transceiver module 401, configured to receive indication information, where the indication information is used to indicate a first code rate and a second code rate; a processing module 402, configured to determine first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, where the first UCI and the second UCI are independently encoded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; the processing module 402 is further configured to determine a third code rate according to the resource of the physical uplink channel, the first UCI, and the second UCI; when the third code rate is greater than the first threshold, the transceiver module 401 is further configured to send all bits of the first UCI and a part of bits of the second UCI through the physical uplink channel, or send all bits of the first UCI and a second UCI subjected to bit and processing; or, when the third code rate is less than or equal to the first threshold, the transceiver module 401 is further configured to send all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

When the communication apparatus 400 is used to implement the functions of the network device in the method embodiment described in fig. 2: a transceiver module 401, configured to send indication information, where the indication information is used to indicate a first code rate and a second code rate; a processing module 402, configured to determine first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, where the first UCI and the second UCI are independently encoded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI; the processing module 402 is further configured to determine a third code rate according to the resource of the physical uplink channel, the first UCI, and the second UCI; when the third code rate is greater than the first threshold, the transceiver module 401 is further configured to receive all bits of the first UCI and part of bits of the second UCI through the physical uplink channel, or receive all bits of the first UCI and a second UCI subjected to bit and processing; or, when the third code rate is less than or equal to the first threshold, the transceiver module 401 is further configured to receive all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

For more detailed description of the transceiver module 401 and the processing module 402, reference may be made to the related description of the above method embodiments, and no further description is made here.

As shown in fig. 7, the communication device 500 includes a processor 510 and an interface circuit 520. Processor 510 and interface circuit 520 are coupled to one another. It is understood that the interface circuit 520 may be a transceiver or an input-output interface. Optionally, the communication device 500 may further include a memory 530 for storing instructions to be executed by the processor 510 or for storing input data required by the processor 510 to execute the instructions or for storing data generated by the processor 510 after executing the instructions.

When the communication device 500 is used to implement the method in the above method embodiments, the processor 510 is configured to perform the functions of the processing module 402, and the interface circuit 520 is configured to perform the functions of the transceiver module 401.

When the communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiment. The terminal device chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal device, wherein the information is sent to the terminal device by the network device; or, the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device, where the information is sent by the terminal device to the network device.

When the communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the method embodiments. The network device chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, wherein the information is sent to the network device by the terminal device; or, the network device chip sends information to other modules (such as a radio frequency module or an antenna) in the network device, where the information is sent by the network device to the terminal device.

It is understood that the processor in the embodiments of the present application may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. The general purpose processor may be a microprocessor, but may be any conventional processor.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, read-Only Memory (ROM), programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in an access network device or a terminal device. Of course, the processor and the storage medium may reside as discrete components in an access network device or a terminal device.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer program or instructions may be stored in or transmitted over a computer-readable storage medium. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, hard disk, magnetic tape; optical media such as DVD; it may also be a semiconductor medium, such as a Solid State Disk (SSD).

In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. In the text description of the present application, the character "/" generally indicates that the preceding and following associated objects are in an "or" relationship; in the formula of the present application, the character "/" indicates that the preceding and following related objects are in a relationship of "division".

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application. The sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic.

Claims

1. A method of communication, comprising:

receiving indication information, wherein the indication information is used for indicating a first code rate and a second code rate;

determining first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, wherein the first UCI and the second UCI are independently coded, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI;

determining a third code rate according to the resource of the physical uplink channel, the first UCI and the second UCI;

when the third code rate is greater than a first threshold, transmitting all bits of the first UCI and part of bits of the second UCI through the physical uplink channel, or transmitting all bits of the first UCI and the second UCI subjected to bit sum processing; or,

and when the third code rate is less than or equal to a first threshold value, transmitting all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

2. The method of claim 1, wherein the first threshold is greater than or equal to the second code rate.

3. The method according to claim 1 or 2, wherein the first threshold is predefined or network device indicated.

4. The method according to any of claims 1-3, wherein the determining a third code rate based on the resources of the physical uplink channel, the first UCI, and the second UCI comprises:

and determining a third code rate according to the bit number of the second UCI, the cyclic redundancy code check bit number of the second UCI, the first UCI, the cyclic redundancy code check bit number of the first UCI and the resource of the physical uplink channel.

5. The method of claim 4, comprising:

the third code rate satisfies the following condition:

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, checked for cyclic redundancy code of said first UCI _m For the modulation scheme, r ₁ For the first code rate, E _tot Output sequence length, E, for total rate matching _UCI-L Matching the length of the output sequence for the rate corresponding to the second UCI, O ₂ Is the number of bits of the second UCI, O _CRC2 A number of bits checked for a cyclic redundancy code of the second UCI,

indicating rounding up.

6. The method of any of claims 1-5, wherein the first UCI has a higher priority than the second UCI.

7. A method of communication, comprising:

sending indication information, wherein the indication information is used for indicating a first code rate and a second code rate;

when the third code rate is greater than a first threshold, receiving all bits of the first UCI and a part of bits of the second UCI through the physical uplink channel, or receiving all bits of the first UCI and a second UCI subjected to bit and processing; or,

and when the third code rate is less than or equal to a first threshold, receiving all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

8. The method of claim 7, wherein the first threshold is greater than or equal to the second code rate.

9. The method according to claim 7 or 8, characterized in that the first threshold value is predefined.

10. The method according to any of claims 7-9, wherein the determining a third code rate according to the resource of the physical uplink channel, the first UCI, and the second UCI comprises:

11. The method of claim 10, comprising:

the third code rate satisfies the following condition:

indicating rounding up.

12. The method of any of claims 7-11, wherein the first UCI has a higher priority than the second UCI.

13. A terminal device, comprising:

a receiving unit, configured to receive indication information, where the indication information is used to indicate a first code rate and a second code rate;

a processing unit, configured to determine first Uplink Control Information (UCI) and second UCI to be carried by a physical uplink channel, where the first UCI and the second UCI are encoded independently, the first code rate corresponds to the first UCI, and the second code rate corresponds to the second UCI;

the processing unit is further configured to determine a third code rate according to the resource of the physical uplink channel, the first UCI, and the second UCI;

a sending unit, configured to send all bits of the first UCI and part of bits of the second UCI through the physical uplink channel, or send all bits of the first UCI and bits and processed second UCI, when the third code rate is greater than a first threshold; or,

when the third code rate is less than or equal to a first threshold, the sending unit is configured to send all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

14. The terminal device of claim 13, wherein the first threshold is greater than or equal to the second code rate.

15. A terminal device according to claim 13 or 14, wherein the first threshold is predefined or network device indicated.

16. The terminal device according to any of claims 13-15, wherein the processing unit is further configured to determine a third code rate according to the resource of the physical uplink channel, the first UCI, and the second UCI, and includes:

the processing unit is further configured to determine a third code rate according to the number of bits of the second UCI, the number of bits of cyclic redundancy check of the second UCI, the number of bits of the first UCI, the number of bits of cyclic redundancy check of the first UCI, and the resource of the physical uplink channel.

17. The terminal device according to claim 16, comprising:

the third code rate satisfies the following condition:

indicating rounding up.

18. The terminal device of any of claims 13-17, wherein the first UCI has a higher priority than the second UCI.

19. A network device, comprising:

a sending unit, configured to send indication information, where the indication information is used to indicate a first code rate and a second code rate;

a receiving unit, configured to receive, through the physical uplink channel, all bits of the first UCI and a part of bits of the second UCI or all bits of the first UCI and a second UCI subjected to bit and processing when the third code rate is greater than a first threshold; or,

when the third code rate is less than or equal to a first threshold, the receiving unit is configured to receive all bits of the second UCI and all bits of the first UCI through the physical uplink channel.

20. The network device of claim 19, wherein the first threshold is greater than or equal to the second code rate.

21. Network device according to claim 19 or 20, wherein said first threshold is predefined.

22. The network device of any one of claims 19-21, wherein the processing unit is further configured to determine a third code rate according to the resource of the physical uplink channel, the first UCI, and the second UCI, and comprises:

the processing unit is further configured to determine a third code rate according to the bit number of the second UCI, the bit number of the cyclic redundancy check of the second UCI, the bit number of the first UCI, the bit number of the cyclic redundancy check of the first UCI, and the resource of the physical uplink channel.

23. The network device of claim 22, comprising:

the third code rate satisfies the following condition:

wherein, O ₁ Is the number of bits of the first UCI, O _CRC1 Number of bits, Q, checked for cyclic redundancy code of said first UCI _m For modulation scheme, r ₁ For the first code rate, E _tot Output sequence length, E, for total rate matching _UCI-L Rate matching for the second UCILength of output sequence, O ₂ Is the number of bits of the second UCI, O _CRC2 A number of bits checked for a cyclic redundancy code of the second UCI,

indicating rounding up.

24. The network device of any of claims 19-23, wherein the first UCI has a higher priority than the second UCI.

25. A communication system, characterized in that the communication system comprises a terminal device according to any of claims 13 to 18 and a network device according to any of claims 19 to 24.

26. A computer-readable storage medium, characterized in that it stores a computer program which, when executed, implements the method of any one of claims 1 to 6 or 7 to 12.