CN112823485B

CN112823485B - Uplink control information processing method and device, communication equipment and storage medium

Info

Publication number: CN112823485B
Application number: CN201980002117.4A
Authority: CN
Inventors: 牟勤
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2023-03-10
Anticipated expiration: 2039-09-18
Also published as: WO2021051325A1; CN112823485A

Abstract

The embodiment of the application discloses an uplink control information processing method and device, communication equipment and a storage medium. The uplink control processing method comprises the following steps: determining the number n of Resource Blocks (RBs) required for transmitting Uplink Control Information (UCI) on an unlicensed frequency band according to a first code rate, wherein the first code rate is the maximum code rate of a Physical Uplink Control Channel (PUCCH) for data transmission; n is a positive integer; and when the N is less than or equal to the number N of RBs contained in a preset bandwidth defined by a bandwidth occupation requirement, transmitting the UCI by using the N RBs on a PUCCH of the unlicensed frequency band.

Description

Uplink control information processing method and device, communication equipment and storage medium

Technical Field

The present invention relates to the field of wireless communications technologies, but not limited to the field of wireless communications technologies, and in particular, to an uplink control information processing method and apparatus, a communication device, and a storage medium.

Background

Frequency bands for wireless communication may be divided into licensed and unlicensed frequency bands. Communication on the unlicensed band may be based on contention, but in some cases, communication on the unlicensed band may also be based on scheduling.

For example, the resource scheduling for Uplink transmission is performed by using a Physical Uplink Control Channel (PUCCH) in the unlicensed band, and data transmission is performed by using a Physical Uplink Shared Channel (PUSCH) in the unlicensed band.

However, in the related art, there are many regulations on the transmission of the unlicensed frequency band, and when the existing regulations are satisfied, on one hand, effective utilization of resources of the unlicensed frequency band is ensured, and on the other hand, reliability of communication also needs to be ensured, which is a technical problem that needs to be further solved.

Disclosure of Invention

The embodiment of the application discloses an uplink control information processing method and device, communication equipment and a storage medium.

A first aspect of an embodiment of the present application provides a method for processing uplink control information, including:

determining the number n of Resource Blocks (RBs) required for transmitting Uplink Control Information (UCI) on an unlicensed frequency band according to a first code rate, wherein the first code rate is the maximum code rate of a Physical Uplink Control Channel (PUCCH) for data transmission; n is a positive integer;

and when the N is less than or equal to the number N of RBs contained in a preset bandwidth defined by a bandwidth occupation requirement, transmitting the UCI by using the N RBs on a PUCCH of the unlicensed frequency band.

Based on the above scheme, the sending the UCI using the N RBs includes:

transmitting the UCI of different priorities by using the N RBs with different code rates;

or,

and transmitting the UCI with different priorities by using the N RBs with the same code rate.

Based on the above scheme, the sending the UCI of different priorities by using the N RBs with different code rates includes:

transmitting the UCI of a first priority using the first code rate using a first portion of the N RBs and transmitting the UCI of a second priority using a second portion of the N RBs using a second code rate, wherein the first priority is lower than the second priority and the first code rate is greater than the second code rate.

Based on the above scheme, the method further comprises:

encoding the source bit of the UCI of the first priority by using the first code rate to obtain a first encoding bit;

determining the number x of Resource Elements (RE) occupied by a first coding bit, wherein x is a positive integer; the x REs are the first portion of the N RBs;

determining the number y of REs for encoding the UCI of the second priority according to the x and the total number of REs which can be used for transmitting the UCI and are contained in the N RBs, wherein the y is a positive integer; the y REs are the second portion of the N RBs;

based on the source bit number of the second priority UCI, coding the second priority UCI by adopting a second code rate to obtain second coding bits occupying y REs;

carrying the first coded bit onto the first portion;

carrying the second coded bits onto the second portion.

Based on the above scheme, the method further comprises:

and when the N is larger than the N, transmitting the UCI on a PUCCH of the unlicensed frequency band by using the N RBs.

In a second aspect, the present application provides an uplink control information processing method, including:

determining the number n of Resource Blocks (RBs) required by transmitting Uplink Control Information (UCI) on an unauthorized frequency band according to a first code rate, wherein the first code rate is the maximum code rate of data transmission of a Physical Uplink Control Channel (PUCCH); n is a positive integer;

and when the N is less than or equal to the number N of RBs contained in the preset bandwidth defined by the bandwidth occupation requirement, receiving the UCI on the N RBs on the PUCCH of the unlicensed frequency band.

Based on the above scheme, the method further comprises:

when the UCI with different priorities is determined according to the scheduling information of the UCI, determining the number x of REs occupied by the UCI with the first priority, wherein x is a positive integer;

decoding first coded bits on the x of the REs based on a source bit number of the UCI of the first priority;

and decoding second coded bits on y REs based on the source bit number of the UCI of the second priority, wherein the difference value between the total number of the REs which can be used for UCI transmission and are contained in the N RBs and the x is the positive integer.

Based on the above scheme, the method further comprises:

when the N is larger than the N, receiving the UCI on N RBs on a PUCCH of the unlicensed frequency band.

A third aspect of the present embodiment provides an uplink control information processing apparatus, including:

the uplink control information transmission method comprises a first determining module, a second determining module and a third determining module, wherein the first determining module is configured to determine the number n of Resource Blocks (RBs) required for transmitting Uplink Control Information (UCI) on an unlicensed frequency band according to a first code rate, and the first code rate is the maximum code rate of data transmission of a Physical Uplink Control Channel (PUCCH); n is a positive integer;

a sending module, configured to send the UCI using N RBs on the PUCCH of the unlicensed frequency band when N is less than or equal to N, which is the number of RBs included in a predetermined bandwidth defined by a bandwidth occupation requirement.

Based on the above scheme, the sending module is configured to send the UCI with different priorities using different code rates by using the N RBs; or, the N RBs are used for transmitting the UCI with different priorities by adopting the same code rate.

Based on the above scheme, the sending module is configured to transmit the UCI of a first priority using the first coding rate using a first portion of the N RBs, and transmit the UCI of a second priority using a second portion of the N RBs using a second coding rate, where the first priority is lower than the second priority, and the first coding rate is greater than the second coding rate.

Based on the above scheme, the apparatus further comprises:

a first encoding module configured to encode source bits of the UCI of the first priority with the first code rate to obtain first encoded bits;

a second determining module configured to determine a number x of Resource Elements (REs) occupied by a first coded bit, where x is a positive integer; the x REs are the first portion of the N RBs;

a third determining module, configured to determine, according to the x and the total number of REs that can be used for UCI transmission and are included in the N RBs, a number y of REs that encode the UCI of the second priority, where y is a positive integer; the y REs are the second portion of the N RBs;

a third encoding module, configured to encode the second priority UCI with a second code rate based on a source bit number of the second priority UCI to obtain second encoded bits occupying the y REs;

a first bearer module configured to carry the first coded bit onto the first portion;

a second carrying module configured to carry the second coded bits onto the second portion.

Based on the above scheme, the transmitting module is further configured to transmit the UCI using the N RBs on a PUCCH of the unlicensed frequency band when N is greater than N.

A fourth aspect of the present embodiment provides an uplink control information processing apparatus, including:

a fourth determining module, configured to determine, according to a first code rate, the number n of resource blocks RB required for transmitting uplink control information UCI on an unlicensed frequency band, where the first code rate is a maximum code rate for data transmission of a physical uplink control channel PUCCH; n is a positive integer;

a receiving module configured to receive the UCI on N RBs on the PUCCH in an unlicensed band when N is less than or equal to N RBs included in a predetermined bandwidth defined by a bandwidth occupation requirement.

Based on the above scheme, the apparatus further comprises:

a fifth determining module, configured to determine, when determining that the UCI includes different priorities according to the scheduling information, the number x of REs occupied by the UCI of the first priority, and decode x of the REs by using the first code rate, where x is a positive integer;

a decoding module configured to decode first coded bits on the x of the REs based on a number of source bits of UCI of the first priority; and decoding second coded bits on y REs based on the source bit number of the UCI of the second priority, wherein y is the difference value between the total number of the REs which can be used for UCI transmission and are contained in the N RBs and x, and y is a positive integer.

Based on the above scheme, the receiving module is further configured to receive the UCI on the N RBs on the PUCCH of the unlicensed frequency band when N is greater than N.

A fifth aspect of embodiments of the present application provides a communication device, including:

a transceiver;

a memory;

and the processor is respectively connected with the transceiver and the memory, and is configured to control the transceiver to receive and transmit wireless signals by executing computer-executable instructions stored in the memory, and implement the uplink control information processing method provided in any technical scheme of the first aspect or the second aspect.

A sixth aspect of the present application provides a computer storage medium, where the computer storage medium stores computer-executable instructions, and after the computer-executable instructions are executed by a processor, the method for processing uplink control information according to any of the technical solutions in the first aspect or the second aspect can be implemented.

According to the technical scheme provided by the embodiment of the application, the number of RBs required for transmitting UCI on a PUCCH on an unlicensed frequency band according to an allowed maximum code rate (namely, a first code rate) is determined according to the first code rate, if the number is smaller than N meeting the occupation requirement of a preset bandwidth, the N RBs are directly utilized to transmit the UCI, and therefore, even if the number N of the required RBs is smaller than N, the N RBs are still adopted to transmit the UCI, the occupation requirement of the preset bandwidth is met, and the compatibility with related technologies is high; meanwhile, when N is smaller than N, N RBs are still used for transmitting UCI, so that the average code rate of the UCI is smaller than the maximum code rate, and the lower the code rate is, the stronger the transmission reliability is, and the higher the probability that the base station successfully receives the UCI is.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a flowchart illustrating an uplink control information processing method according to an embodiment of the present application;

fig. 3A is a schematic flowchart of another uplink control information processing method according to an embodiment of the present application;

fig. 3B is a schematic flowchart of another uplink control information processing method according to an embodiment of the present application;

fig. 4 is a flowchart illustrating an uplink control information processing method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an uplink control information processing apparatus according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another uplink control information processing apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

Please refer to fig. 1, which illustrates a schematic structural diagram of a wireless communication system according to an embodiment of the present application. As shown in fig. 1, the wireless communication system is a communication system based on a cellular mobile communication technology, and may include: several terminals 10 and several base stations 20.

Terminal 10 may refer to, among other things, a device that provides voice and/or data connectivity to a user. The terminal 10 may communicate with one or more core networks via a Radio Access Network (RAN), and the terminal 10 may be an internet of things terminal, such as a sensor device, a mobile phone (or called "cellular" phone), and a computer having the internet of things terminal, and may be a fixed, portable, pocket, handheld, computer-included, or vehicle-mounted device, for example. For example, a Station (STA), a subscriber unit (subscriber unit), a subscriber Station (subscriber Station), a mobile Station (mobile), a remote Station (remote Station), an access point (ap), a remote terminal (remote terminal), an access terminal (access terminal), a user equipment (user terminal), a user agent (user agent), a user equipment (user device), or a user terminal (user equipment, terminal). Alternatively, the terminal 10 may be a device of an unmanned aerial vehicle. Alternatively, the terminal 10 may also be a vehicle-mounted device, for example, a driving computer with a wireless communication function, or a wireless communication device externally connected to the driving computer. Alternatively, the terminal 10 may be a roadside device, for example, a street lamp, a signal lamp or other roadside device having a wireless communication function.

The base station 20 may be a network side device in a wireless communication system. The wireless communication system may be the fourth generation mobile communication (4 g) system, which is also called Long Term Evolution (LTE) system; alternatively, the wireless communication system may also be a 5G system, which is also called a New Radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a next generation system of a 5G system. Among them, the Access network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access network, new Generation Radio Access network).

The base station 20 may be an evolved node b (eNB) used in a 4G system. Alternatively, the base station 20 may be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 20 adopts a centralized distribution architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DU). A Protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control (MAC) layer is set in the central unit; a Physical (PHY) layer protocol stack is disposed in the distribution unit, and the embodiment of the present application does not limit the specific implementation manner of the base station 20.

The base station 20 and the terminal 10 may establish a radio connection over a radio air interface. In various embodiments, the wireless air interface is based on a fourth generation mobile communication network technology (4G) standard; or the wireless air interface is based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.

In some embodiments, an E2E (End to End) connection may also be established between the terminals 10. Such as a vehicle to vehicle (V2V) communication, a vehicle to Infrastructure (V2I) communication, and a vehicle to peer (V2P) communication in a vehicle to internet communication (V2X).

In some embodiments, the wireless communication system may further include a network management device 13.

Several base stations 20 are connected to the network management device 13, respectively. The network Management device 13 may be a Core network device in a wireless communication system, for example, the network Management device 13 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, the Network management device may also be other core Network devices, such as a Serving Gateway (SGW), a Public Data Network gateway (PGW), a Policy and Charging Rules Function (PCRF), a Home Subscriber Server (HSS), or the like. The embodiment of the present application is not limited to the implementation form of the network management device 13.

As shown in fig. 2, the present embodiment provides an uplink control information processing method, including:

s110: determining the number n of Resource Blocks (RBs) required for transmitting Uplink Control Information (UCI) on an unlicensed frequency band according to a first code rate, wherein the first code rate is the maximum code rate of a Physical Uplink Control Channel (PUCCH) for data transmission; n is a positive integer;

s120: and when N is less than or equal to the number N of RBs contained in the preset bandwidth defined by the bandwidth occupation requirement, transmitting the UCI by using the N RBs on the PUCCH of the unlicensed frequency band.

The uplink control information processing method provided in this embodiment is applied to a terminal. The terminal includes but is not limited to: the system comprises a man-carried terminal, a vehicle-mounted terminal, a fixed Internet of things terminal and the like.

The human-carried terminal comprises communication equipment carried or worn by a human body such as a mobile phone, a tablet computer or wearable equipment.

The in-vehicle terminal may include: various electronic devices located in private cars and vehicles.

Fixed internet of things terminals may include, but are not limited to: various intelligent household devices. Such as smart door access devices, smart air conditioners, etc.

In the embodiment of the present application, before UCI is transmitted on an unlicensed frequency band, the number of RBs required according to a first code rate (i.e., the maximum code rate for data transmission by the PUCCH) is determined according to the maximum code rate for data transmission by the PUCCH.

In one scenario, in an unauthorized frequency band, each time spectrum resource occupation needs to meet a certain bandwidth requirement. Specifically, in the unlicensed frequency band, the requirement of Occupied Channel Bandwidth (OCB) of a signal sent by a sending end in a certain time period is as follows: OCB requires that the transmitted signal from a single transmitter occupy at least 80% of the channel transmission, while the bandwidth of an unlicensed carrier is typically 20MHz.

In another scenario, in the unlicensed frequency band, the minimum requirement of 2MHz needs to be satisfied for each spectrum occupation.

The number of RBs included in one 2MHz PUCCH is different at different subcarrier intervals.

For example, when the subcarrier spacing is 15KHz, the bandwidth of one RB is 180KHz, and one 2MHz PUCCH contains 12 RBs. When the subcarrier spacing is 30KHz, the bandwidth of one RB is 360KHz, and one 2MHz PUCCH contains 6 RBs. When the subcarrier spacing is 60KHz, the bandwidth of one RB is 720KHz, and one PUCCH includes 3 RBs.

In the embodiment of the present application, the occupation requirement of the predetermined bandwidth may be to satisfy 80% of 20MHz, and may also be a bandwidth occupation requirement of 2 MHz.

After determining the number n of RBs required for transmitting UCI according to the first code rate, it is determined whether the n RBs satisfy the occupation requirement of the predetermined bandwidth.

For example, when N is smaller than the number N of RBs included in the predetermined bandwidth defined by the bandwidth occupation requirement, which indicates that, when N RBs are used to transmit UCI, the occupation requirement of occupying at least the predetermined bandwidth in the relevant specification may not be met, thereby resulting in incompatibility with the related art. Therefore, in the embodiment of the present application, if N is less than or equal to N, N RBs are directly used to transmit UCI.

It is worth noting that: when UCI is transmitted using N RBs, coded bits of UCI occupy N RBs. For example, the coding rate of UCI is reduced such that N RBs can be occupied by the generated coded bits after the source bits of UCI pass through the coding at the low coding rate. The lower the coding rate, the lower the probability of the erroneous reception of the receiving end caused by the interference of the UCI in the transmission process, thereby improving the transmission accuracy and the transmission reliability of the UCI.

In some embodiments, the UCI may include a plurality of UCI, and the plurality of UCI may be set with different priorities according to different degrees of importance; or, different priorities are set according to different urgency levels of UCI transmission.

In some embodiments, the higher the urgency of transmission of UCI with high priority, the higher the transmission reliability requirements for UCI.

Specifically, transmitting UCI using N RBs includes:

in some embodiments, as shown in fig. 3A, S121: and transmitting UCI with different priorities by using N RBs and adopting different code rates.

In other embodiments, transmitting UCI using N RBs includes:

as shown in fig. 3B, S122: and transmitting UCI of different priorities by using N RBs with the same code rate.

When the UCI is transmitted by using N RBs contained in a predetermined bandwidth limited by meeting the occupation requirement, the UCI transmitted currently only needs to be less than or equal to the N RBs if the UCI is transmitted according to the maximum code rate. If N is smaller than N, if N RBs are used to transmit UCI of each priority level with the same code rate, it is obvious that UCI of all priority levels uses a uniform code rate, and the same code rate is certainly lower than the maximum code rate of data transmission by PUCCH, which obviously meets the relevant regulation of the maximum code rate of data by PUCCH, and has good compatibility with the related technology.

To ensure higher transmission reliability of high priority UCI. In the embodiment of the application, N RBs are used to transmit UCI of different priorities with different code rates. Specifically, for example, N RBs are used to transmit UCI of higher priority at a lower code rate. I.e. the priority of UCI is inversely related to the code rate of transmission.

In some embodiments, the priority of the UCI may be multiple, for example, the priority of the UCI may be 2 or more than 2. When M priorities of UCI are available, the UCI transmitted by N RBs can be transmitted using M code rates at maximum.

In some embodiments, transmitting UCI of different priorities using N RBs with different coding rates includes:

transmitting UCI of a first priority using a first portion of the N RBs with a first code rate,

and transmitting UCI of a second priority by adopting a second part of second code rates of the N RBs, wherein the first priority is lower than the second priority, and the first code rate is greater than the second code rate.

The second portion is different from the first portion, and the second portion and the first portion together form N RBs.

In some embodiments, the UCI has two priorities, namely a first priority and a second priority, and the first priority is lower than the second priority. I.e. the second priority is a high priority and the first priority is a low priority.

The UCI can comprise a plurality of types, and specifically can comprise one or more of the following types:

hybrid Automatic Request Acknowledgement (HARQ-ACK);

scheduling Request (SR) information;

channel State Information (CSI).

In some cases, the CSI may be divided into a first part (part 1) and a second part (part 2). Wherein the priority of the CSI of the first part is higher than the priority of the second part.

In some embodiments, the first portion of HARQ-ACK, SR, and CSI may be considered to have a second, higher priority, while the second portion of CSI may be considered to have a first, lower priority.

Of course, the above is only an example of UCI with the first priority and the second priority, and the specific implementation is not limited to the above example.

When UCI is transmitted in an unlicensed frequency band, the transmitting and receiving parties can determine the number n of RBs required by the UCI to be transmitted according to the maximum code rate in the same way.

In the implementation of the present application, a first part of N RBs transmits UCI of a first priority using a first code rate, and then a second part of N RBs transmits UCI of a second priority using a second code rate, so that the N RBs will use UCI of two code rates. These two UCI will be encoded separately.

In some embodiments, the method further comprises:

carrying the first coded bit onto the first portion;

carrying the second coded bits onto the second portion.

One RB includes a plurality of REs. REs are smaller resource units than RBs.

The 1 RB occupies a predetermined subcarrier in the frequency domain and one slot in the time domain. And one RE is one subcarrier in frequency and occupies one symbol in time domain.

In the frequency domain, 1 RB occupies 12 subcarriers, that is, the bandwidth of 1 RB is 180KHz, and when one slot includes 14 symbols, then 1 RB includes 14 × 12 REs.

In this embodiment, first, source bits of UCI of a first priority are encoded by using a first code rate to obtain first encoded bits, where bits of the first encoded bits are greater than bits included in a last RE, so that REs required to be occupied by the first encoded bits can be known, and then x is subtracted from all RE numbers that can be used for UCI transmission and are included in N RBs, so as to obtain the number y of REs that can be used for coding UCI of a second priority.

In some embodiments, all REs included in one RB, some REs are used for pilot transmission, and some REs are reserved for interference coordination, so that not all REs in N RBs are used for UCI transmission, and thus, in the embodiment of the present application, the total number of REs used for UCI transmission in the N RBs minus x can obtain y.

In the embodiment of the application, the source bits are bits before encoding; the coded bits are bits after coding. The number of coded bits obtained after coding is generally greater than the number of source bits.

Since N is less than or equal to N, the code rate of the UCI of the second priority is certainly less than the first code rate since the UCI of the first priority employs the maximum code rate, thus realizing that the UCI of the higher priority is encoded using the lower code rate.

In the embodiment of the present application, the UCI of the first priority and the UCI of the second priority are encoded separately, and the encoded check bits are checked separately. In the embodiment of the present application, the Check bits may be Cyclic Redundancy Check (CRC) coded CRC bits. In addition, in some embodiments, for UCI source bits less than a certain value, no check bits may be added.

In some embodiments, the method further comprises: and when N is larger than N, transmitting UCI by using N RBs on a PUCCH of the unlicensed frequency band.

If the number N of RBs actually required by the UCI is greater than N, the requirement of occupying a predetermined bandwidth is met, and in order to consider the use efficiency of resources and also the compatibility with the related technology, the UCI is transmitted by using N RBs of the PUCCH on the unlicensed frequency band.

At this time, UCI is transmitted with the maximum code rate directly using n RBs.

As shown in fig. 4, the present embodiment provides an uplink control information processing method, including:

s210: determining the number n of Resource Blocks (RBs) required for transmitting Uplink Control Information (UCI) on an unlicensed frequency band according to a first code rate, wherein the first code rate is the maximum code rate of a Physical Uplink Control Channel (PUCCH) for data transmission; n is a positive integer;

s220: and when N is less than or equal to the number N of RBs contained in the preset bandwidth defined by the bandwidth occupation requirement, receiving the UCI on the N RBs on the PUCCH of the unlicensed frequency band.

The uplink control information processing method can be applied to the base station.

The base station firstly estimates the number N of RBs occupied by UCI to be received according to a first code rate, and automatically receives the UCI on N RBs on a PDCCH of an unauthorized frequency band if N is determined to be smaller than N; instead of directly receiving the UCI on n RBs, the method meets the occupation requirement of the preset bandwidth on the unauthorized frequency band, and realizes good compatibility with the related technology.

If N is greater than N, the UCI is received directly on N RBs.

In some embodiments, the method further comprises:

when UCI with different priorities is determined according to scheduling information of the UCI, determining the number x of REs occupied by the UCI with the first priority, and decoding first coding bits on the x REs based on the source bit number of the UCI with the first priority, wherein x is a positive integer;

and decoding second coded bits on y REs based on the source bit number of the UCI of the second priority, wherein y is the difference value between the total number of the REs contained in the N RBs and x, and y is a positive integer.

In the embodiment of the present application, the scheduling information of the UCI includes, but is not limited to, dynamic scheduling information of HARQ-ACK and semi-static scheduling information of SR information and CSI. In short, the base station may determine which UCI currently needs to be received according to the scheduling information of the UCI, so as to determine the priority of the UCI.

When N is smaller than N, the code rate of UCI is no longer the maximum code rate. If the priority of the UCI is two or more, different parts in the N RBs adopt two code rates to transmit the UCI. Therefore, in the embodiment of the present application, the number x of REs occupied by UCI of a lower first priority in UCI is determined first, and then the number of REs used by UCI of a higher second priority is determined according to a difference between the total number of N RBs and x. And then, the UCI of the second priority can be quickly decoded according to the source bit number of the UCI of the second priority and y.

The UCI of the first priority and the UCI of the second priority are distinguished, different code rates are adopted for transmission, and the transmission reliability of the UCI of the higher priority can be ensured.

And when N is larger than N, transmitting UCI by using N RBs on a PUCCH of the unlicensed frequency band.

As shown in fig. 5, the present embodiment provides an uplink control information processing apparatus, including:

a first determining module 110, configured to determine, according to a first code rate, the number n of resource blocks RB required for transmitting uplink control information UCI on an unlicensed frequency band, where the first code rate is a maximum code rate for data transmission of a physical uplink control channel PUCCH; n is a positive integer;

and a transmitting module 120 configured to transmit UCI using N RBs on a channel PUCCH in an unlicensed frequency band when N is less than or equal to N, which is the number of RBs included in a predetermined bandwidth defined by the bandwidth occupation requirement.

In some embodiments, the first determining module 110 and the sending module 120 may be program modules, which when executed by the processor, can realize the number confirmation of the required RBs while sending UCI by using N RBs.

In other embodiments, the first determining module 110 and the sending module 120 may be a combination of hardware and software modules; the soft and hard combining module comprises but is not limited to various programmable arrays; programmable arrays include, but are not limited to, complex programmable arrays or field programmable arrays.

In still other embodiments, the first determining module 110 and the sending module 120 may be pure hardware modules; pure hardware modules include, but are not limited to, application specific integrated circuits.

In some embodiments, the transmitting module 120 is configured to transmit UCI of different priorities with different code rates using N RBs; or, transmitting UCI of different priorities using N RBs with the same coding rate.

In some embodiments, the transmitting module 120 is configured to transmit UCI of a first priority using a first portion of the N RBs with a first code rate and transmit UCI of a second priority using a second portion of the N RBs with a second code rate, wherein the first priority is lower than the second priority and the first code rate is greater than the second code rate.

In some embodiments, the apparatus further comprises:

a first encoding module configured to encode a source bit of the UCI of the first priority with a first code rate to obtain a first encoded bit;

a second determining module configured to determine a number x of Resource Elements (REs) occupied by the first coded bit, where x is a positive integer; x REs are the first portion of the N RBs;

a third determining module, configured to determine, according to a total number of REs that can be used for UCI transmission and a number x of REs occupied by the first coding bits included in N RBs, a number y of REs that encode second priority UCI, where y is a positive integer; y REs are a second portion of N RBs;

a third encoding module, configured to encode the UCI of the second priority with a second code rate based on the source bit number of the UCI of the second priority to obtain second encoded bits occupying y REs;

a first carrying module configured to carry a first coded bit onto a first portion;

a second carrying module configured to carry a second coded bit onto the second portion.

In some embodiments, the UCI includes at least one of:

the hybrid automatic repeat request acknowledgement HARQ-ACK information,

scheduling Request (SR) information;

channel state CSI information.

In some embodiments, the transmitting module 120 is further configured to transmit UCI on N RBs on a PUCCH of the unlicensed frequency band when N is greater than N.

As shown in fig. 6, the present embodiment provides an uplink control information processing apparatus, including:

a fourth determining module 210, configured to determine, according to a first code rate, the number n of resource blocks RB required for transmitting UCI on an unlicensed frequency band, where the first code rate is a maximum code rate for data transmission of a physical uplink control channel PUCCH; n is a positive integer;

a receiving module 220, configured to receive UCI on N RBs on a PUCCH in an unlicensed frequency band when N is less than or equal to N RBs included in a predetermined bandwidth defined by a bandwidth occupation requirement.

In some embodiments, the third determining module and receiving module 220 may be a program module, which is executed by the processor and is capable of determining the number of RBs required for transmitting UCI and receiving UCI.

In some embodiments, the apparatus further comprises:

a fifth determining module, configured to determine, when determining that the UCI includes UCI of different priorities according to the scheduling information, the number x of REs occupied by the UCI of the first priority, and decode x REs with the first code rate, where x is a positive integer;

the decoding module is configured to determine the number x of REs occupied by UCI of a first priority when UCI of different priorities is determined to be included according to scheduling information of the UCI, wherein x is a positive integer; decoding first coded bits on the x REs based on a source bit number of the UCI of the first priority; and decoding second coded bits on y REs based on the source bit number of the UCI of the second priority, wherein y is the difference value between the total number of the REs which can be used for UCI transmission and contained in the N RBs and x, and y is a positive integer.

In some embodiments, the receiving module 220 is further configured to receive UCI on N RBs on a PUCCH of the unlicensed frequency band when N is greater than N.

The communication device provided by the embodiment comprises: a transceiver, a memory, and a processor. Transceivers, including but not limited to transceiving antennas, may be used to interact with other devices. The memory may store computer-executable instructions; the processor is connected with the transceiver and the memory respectively, and can realize the uplink control information processing method provided by any technical scheme.

Specific examples are provided below in connection with any of the embodiments described above:

example 1:

in the uplink control information processing method provided in this example, first, the number n of RBs required for transmitting UCI is calculated according to the maximum code rate.

Then combining different application scenes, under the condition that the subcarrier interval is 15KHz, 30KHz or 60KHz, the number N of RBs corresponding to the 2MHz bandwidth is respectively as follows: 12. 6 and 3.

Respectively comparing N with N in different application scenes, and if N is less than or equal to N, directly transmitting UCI by using N RBs on a PUCCH of an unauthorized frequency band in a corresponding scene; and if N is larger than N, directly using N RBs on the PUCCH on the unlicensed frequency band to transmit UCI.

If the UCI information includes a plurality of uplink control information with different priorities, different control information may be transmitted using different code rates, for example, the uplink control information with the priority draft needs to use a smaller code rate for encoding source bits, so that a lower code rate may be set for important uplink control information, thereby providing more reliable transmission.

Example 2:

this example provides a UCI processing method in a case where the number n of RBs required for calculation based on the maximum code rate is less than the number of RBs that satisfies the minimum 2MHz bandwidth requirement. Since the number of RBs actually used for transmission is larger than the maximum allowed code rate and is smaller than the minimum RB number calculated according to the maximum allowed code rate, the code rate for transmitting UCI is smaller than the maximum allowed code rate on average.

One of the most direct ways is to determine the code rate used for UCI transmission according to the number of RBs actually used for transmission. And transmitting each uplink control information (HARQ-ACK information, SR information and CSI information) in the UCI information by using the same code rate.

For example, taking a 15KHz subcarrier interval as an example, the number of frequency domain RBs of a PUCCH resource of a certain PUCCH format 2 is configured to be 15, the number of time domain symbols is 4, the number of subcarriers that can be used for carrying PUCCH information on each symbol is 9, the modulation scheme is QPSK, that is, the allowed maximum code rate configured with a modulation order of 2 is 0.08, the number of uci payloads (payload) (including CRC check bits) is 55 bits, where the HARQ-ACK information is 4 bits, the SR information is 1 bit, the CSI first portion is 14 bits, the CSI second portion is 25 bits, and the CRC check information is 11 bits.

The formula for determining the minimum number of RBs required to calculate UCI according to the maximum code rate may be as follows:

in the above formula, O _ACK Number of bits of coded bits representing HARQ-ACK information, O _SR Identifying the number of bits occupied by the coded bits of the SR information, O _CSI Number of bits occupied by coded bits representing CSI, O _CRC The number of bits occupied by the coded bits representing the CRC check information. M _RB,min Is the minimum RB number capable of bearing all UCI information, namely according to the maximum code rateThe minimum number of RBs required to carry UCI is calculated.

Is the number of subcarriers that can be used to carry UCI information in one RB,

is the number of time-domain symbols, Q, of the coded bits used to carry the UCI information _m Is a modulation order of coded bits of the UCI information, and r is a maximum allowed code rate of a PUCCH configured by the base station to the UE.

The minimum RB number calculated according to the above formula

Since 10 is smaller than 12, the coded bits of the UCI information will be carried using the first 12 PUCCH resources of the PUCCH resource.

If various UCIs are transmitted using the same code rate. Then, in the above example, the actual transmission rate of UCI is 55/(12 × 9 × 4 × 2) =0.7957, which is smaller than the maximum allowed rate of 0.08 configured by the base station.

The importance and priority of various types of UCI are not exactly the same. For UCI of higher importance, transmission of higher reliability should be performed. Therefore, for the case that the UCI includes HARQ-ACK information, SR information, and CSI information, the HARQ-ACK/SR and CSI first part may be transmitted using a lower code rate, because the importance of the HARQ-ACK/SR and CSI first part is higher than that of CSI part 2.

In this example, the HARQ-ACK/SR/CSI first part may be encoded separately from the CSI second part. For the CSI second part, it is transmitted directly at the maximum allowed code rate of 0.08. In this case, the number of Resource Elements (REs) required to be occupied by the CSI second part is equal to

(the "11" bits in the molecule are CRC check bits). And the total number of REs contained in the 12 RBs in the PUCCH resource is 12 × 9 × 4=432, so the number of REs left for the HARQ-ACK/SR/CSI first portion transmission is 432-225=207. Then HARQ-ACK/SR/CSThe first part of I will be carried on these 207 REs, and the code rate used for transmission is (4 +1+14+ 6)/(207 + 2) =0.0604, (these "6" bits in the numerator are CRC check bits) which is much smaller than the maximum allowed code rate configured by the base station. The HARQ-ACK or SR information or CSI first part can thus be transmitted with higher reliability.

And transmitting the UCI with lower importance degree according to the allowed maximum code rate, and independently performing CRC check and coding. Therefore, the number of REs occupied by the UCI with lower importance degree can be calculated according to the maximum code rate. Because the total used total RE number is known, the residual RE number reserved for the UCI with higher importance can be calculated, and then the coding of the UCI information with higher importance can be carried out according to the RE number, and the code rate used for transmission is lower.

Fig. 7 illustrates a terminal, which may be embodied as a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like, in accordance with one exemplary embodiment.

Referring to fig. 7, terminal 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operation at the terminal 800. Examples of such data include instructions for any application or method operating on terminal 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 806 provide power to the various components of terminal 800. Power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for terminal 800.

The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the terminal 800 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the terminal 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

Sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for terminal 800. For example, sensor assembly 814 can detect an open/closed state of terminal 800, the relative positioning of components, such as a display and keypad of terminal 800, sensor assembly 814 can also detect a change in position of terminal 800 or a component of terminal 800, the presence or absence of user contact with terminal 800, orientation or acceleration/deceleration of terminal 800, and a change in temperature of terminal 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 816 is configured to facilitate communications between terminal 800 and other devices in a wired or wireless manner. The terminal 800 may access a wireless network based on a communication standard, such as Wi-Fi,2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the terminal 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the terminal 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Fig. 8 is a schematic diagram of a base station. Referring to fig. 8, base station 900 includes a processing component 922, which further includes one or more processors and memory resources, represented by memory 932, for storing instructions, such as applications, that may be executed by processing component 922. The application programs stored in the memory 932 may include one or more modules that each correspond to a set of instructions. Further, processing component 922 is configured to execute instructions to perform the PDCCH monitoring methods illustrated in fig. 4 and/or fig. 5.

The base station 900 may also include a power component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input/output (I/O) interface 958. The base station 900 may operate based on an operating system stored in memory 932, such as Windows Server (TM), mac OS XTM, unix (TM), linux (TM), free BSDTM, or the like.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. An uplink control information processing method, comprising:

when the N is less than or equal to the number N of RBs contained in a preset bandwidth defined by a bandwidth occupation requirement, transmitting the UCI by using the N RBs on a PUCCH of the unlicensed frequency band;

2. The method of claim 1, wherein the transmitting the UCI using the N RBs comprises:

or,

3. The method of claim 2, wherein the transmitting the UCI of different priorities with different coding rates using the N RBs comprises:

transmitting the UCI of a first priority using the first code rate using a first portion of the N RBs, and transmitting the UCI of a second priority using a second portion of the N RBs using a second code rate, wherein the first priority is lower than the second priority, and the first code rate is greater than the second code rate.

4. The method of claim 3, wherein the method further comprises:

carrying the first coded bit onto the first portion;

carrying the second coded bits onto the second portion.

5. An uplink control information processing method, comprising:

when the N is less than or equal to the number N of RBs contained in a preset bandwidth defined by a bandwidth occupation requirement, receiving the UCI on the N RBs on a PUCCH of an unlicensed frequency band;

when the N is larger than the N, the UCI is received on the PUCCH of the unlicensed frequency band by using the N RBs.

6. The method of claim 5, wherein the method further comprises:

when the UCI with different priorities is determined to be contained according to the scheduling information of the UCI, determining the number x of REs occupied by the UCI with the first priority, wherein x is a positive integer;

and decoding second coded bits on y REs based on the source bit number of the UCI of a second priority, wherein y is the difference value between the total number of REs which can be used for UCI transmission and are contained in the N RBs and x, and y is a positive integer.

7. An uplink control information processing apparatus, comprising:

a transmitting module configured to transmit the UCI using N RBs on the PUCCH of the unlicensed frequency band when N is less than or equal to N, which is the number of RBs included in a predetermined bandwidth defined by a bandwidth occupation requirement;

the transmitting module is further configured to transmit the UCI using the N RBs on a PUCCH of the unlicensed frequency band when the N is greater than the N.

8. The apparatus of claim 7, wherein the transmitting module is configured to transmit the UCI of different priority using the N RBs with different coding rates; or, the N RBs are used for transmitting the UCI with different priorities by adopting the same code rate.

9. The apparatus of claim 8, wherein the transmitting module is configured to transmit the UCI at a first priority using a first portion of the N RBs at the first code rate and to transmit the UCI at a second priority using a second portion of the N RBs at a second code rate, wherein the first priority is lower than the second priority and the first code rate is greater than the second code rate.

10. The apparatus of claim 9, wherein the apparatus further comprises:

a second determining module, configured to determine a number x of resource elements RE occupied by the first coded bit, where x is a positive integer; the x REs are the first portion of the N RBs;

a third determining module, configured to determine, according to the x and the total number of REs that can be used for UCI transmission included in the N RBs, a number y of REs that encode the UCI of the second priority, where y is a positive integer; the y REs are the second portion of the N RBs;

a second carrying module configured to carry the second coded bit onto the second portion.

11. An uplink control information processing apparatus, comprising:

a fourth determining module, configured to determine, according to a first code rate, the number n of resource blocks RB required for transmitting UCI on an unlicensed frequency band, where the first code rate is a maximum code rate for data transmission of a physical uplink control channel PUCCH; n is a positive integer;

a receiving module configured to receive the UCI on N RBs on the PUCCH in an unlicensed band when N is less than or equal to N RBs included in a predetermined bandwidth defined by a bandwidth occupation requirement;

the receiving module is further configured to receive the UCI on the N RBs on the PUCCH in the unlicensed frequency band when the N is greater than the N.

12. The apparatus of claim 11, wherein the apparatus further comprises:

a fifth determining module, configured to determine, when determining that the UCI includes different priorities according to the scheduling information, the number x of REs occupied by the UCI of the first priority, and decode x of the REs with the first code rate, where x is a positive integer;

a decoding module configured to decode first coded bits on the x of the REs based on a source bit number of UCI of the first priority; and decoding second coded bits on y REs based on the source bit number of the UCI of the second priority, wherein y is the difference value between the total number of the REs which can be used for UCI transmission and are contained in the N RBs and x, and y is a positive integer.

13. A communication device, comprising:

a transceiver;

a memory;

a processor, connected to the transceiver and the memory respectively, for controlling the transceiver to transmit and receive wireless signals by executing computer-executable instructions stored in the memory, and implementing the uplink control information processing method provided in any one of claims 1 to 4 or 5 to 6.

14. A computer storage medium storing computer-executable instructions capable of implementing the uplink control information processing method provided in any one of claims 1 to 4 or 5 to 6 when executed by a processor.