CN107707338A

CN107707338A - Code block component group determination/indicating means, user equipment, base station and storage medium

Info

Publication number: CN107707338A
Application number: CN201710753154.1A
Authority: CN
Inventors: 王建中
Original assignee: Shenzhen Jinli Communication Equipment Co Ltd
Current assignee: Shenzhen Jinli Communication Equipment Co Ltd
Priority date: 2017-08-28
Filing date: 2017-08-28
Publication date: 2018-02-16

Abstract

The embodiment of the invention discloses a kind of code block component group determination/indicating means, user equipment, base station and storage medium, wherein method includes：The configured information that base station is sent is obtained, the configured information is used for instruction user equipment and carries out used physical uplink control channel PUCCH transformats during descending HARQ feedback；Wherein, the bit field for the descending HARQ feedback that different PUCCH transformats include is of different sizes；According to the PUCCH transformats, the bit field size of descending HARQ feedback is determined；Code block group CBG is divided according to the bit field size of the descending HARQ feedback, and descending HARQ feedback information is generated according to the decoding cases of the code block group CBG；The feedback information of the descending HARQ is sent to the base station, the instruction and determination of code block component group in 5G systems can be achieved, make the packet of code-aiming block group between base station and user equipment have consistent understanding, avoid the waste of unnecessary system resource.

Description

Code block group determining/indicating method, user equipment, base station and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a code block group determining/indicating method, a user equipment, a base station, and a storage medium.

Background

With the rapid development of communication technology, in order to provide better network resources and meet the demands of more scenes and higher speed, the research of mobile communication has entered the research of the fifth Generation communication technology (5th-Generation, 5G). Currently, the key technology of 5G is being researched and discussed in standardization work, and the research on 5G is also becoming the focus in the current third Generation Partnership Project (3 GPP) standardization work. Currently, three major scenarios of 5G technology are defined in the 3GPP conference: enhanced mobile broadband (eMBB), high-reliability and low-latency communications (URLLC), and large-scale machine type communications (mtc). The eMB technology mainly carries: 3D/ultra-high definition video and other high-flow mobile broadband services; the mtc technology mainly carries: large-scale internet of things business; URLLC technology mainly carries: such as unmanned driving, industrial automation, etc., requiring low-latency, highly reliable connectivity. The requirements in the three scenes, namely, the characteristics of high reliability, low time delay, large capacity and the like, also become the requirements and research targets of the 5G technology.

Currently, the discussion of the specification of the 5G technology in the standardization work is performed for the subject of "New Radio access technology", i.e., the 5G New air interface technology, abbreviated as NR technology. Through the discussion of the technology, the key points of the air interface architecture and the signaling transmission between air interfaces in the 5G network are determined. The technical research of NR relates to the aspects of networks, and the discussion of NR technology in the current standardization enters a work item stage and has certain stage conclusion. Technical research on NR has been directed to the aspects of networks. Similar to the previous research, the Hybrid Automatic Repeat Request (HARQ) process is the first and important research point in the NR technology because it relates to scheduling, transmission, feedback, and the like of data.

In the case of a single codeword, either in the LTE system or in the 5G system, the structure of data transmission is that one TB (transport block) is transmitted in one subframe, and one TB is organized by several CBs (code blocks). Because a new coding mode is adopted in the 5G system, the number of CBs contained in one TB in the 5G system is far larger than that contained in one TB in the LTE system.

Therefore, in the conventional LTE system, HARQ feedback information is in TB units, and if TB decoding is correct, ACK is fed back, data retransmission is not performed, and if TB decoding is incorrect, NACK is fed back. In the 5G system, a smaller feedback unit is used for division, that is, CBGs (cb groups) are used as feedback units, and one TB includes several CBGs. Therefore, the system can not retransmit the whole TB due to the error of a few CBs in one TB, thereby causing the waste of system resources.

The introduction of the CBG concept is a major innovation of the 5G system in the physical layer, and is also an important discussion subject of the 5G system in the scheduling process and the control information transfer process, and the specific discussion content includes several aspects. One aspect is how to enable the user and the base station to have a unified understanding on the size of the CBG, and the other aspect is how to transmit the feedback information of the HARQ feedback division unit using the CBG to the information transmitting end.

Both aspects are important for HARQ processes of 5G systems. If the user and the base station have inconsistent understanding of the CBG size, HARQ feedback failure and waste of buffer resources and system retransmission resources may result.

Disclosure of Invention

Embodiments of the present invention provide a code block group determining/indicating method, a user equipment, a base station, and a storage medium, which can implement indication and determination of code block group in a 5G system, so that the base station and the user equipment can understand the grouping of code blocks consistently, and avoid unnecessary waste of system resources.

In a first aspect, an embodiment of the present invention provides a code block group determination method, including:

acquiring indication information sent by a base station, wherein the indication information is used for indicating a Physical Uplink Control Channel (PUCCH) transmission format used when user equipment carries out downlink HARQ feedback; wherein, the bit fields of the downlink HARQ feedbacks included in different PUCCH transmission formats are different in size;

determining the bit field size of downlink HARQ feedback according to the PUCCH transmission format;

dividing a code block group CBG according to the bit field size fed back by the downlink HARQ, and generating feedback information of the downlink HARQ according to the decoding condition of the code block group CBG;

and sending the feedback information of the downlink HARQ to the base station.

In a second aspect, an embodiment of the present invention provides a code block group indication method, where the method includes:

determining a Physical Uplink Control Channel (PUCCH) transmission format used by user equipment for downlink HARQ feedback; wherein, the bit fields of the downlink HARQ feedbacks included in different PUCCH transmission formats are different in size;

sending indication information to the user equipment, wherein the indication information is used for indicating the PUCCH transmission format;

and receiving feedback information of the downlink HARQ sent by the user equipment.

In a third aspect, an embodiment of the present invention provides a user equipment, where the user equipment includes a unit configured to perform the method of the first aspect.

In a fourth aspect, an embodiment of the present invention provides a base station, which includes means for performing the method of the second aspect.

In a fifth aspect, the present invention provides a computer-readable storage medium, wherein the computer storage medium stores a computer program, and the computer program comprises program instructions, which, when executed by a processor, cause the processor to execute the method of the first or second aspect.

In the embodiment of the invention, the user equipment obtains the PUCCH transmission format used for downlink HARQ feedback by acquiring the indication information sent by the base station, determines the bit field size of the downlink HARQ feedback according to the PUCCH transmission format, divides the code block group CBG according to the bit field size fed back by the downlink HARQ, generates the feedback information of the downlink HARQ according to the decoding condition of the code block group CBG, and sends the feedback information of the downlink HARQ to the base station, thereby realizing the indication and determination of the code block group grouping in the 5G system, leading the base station and the user equipment to have consistent understanding on the code block group grouping, and avoiding the waste of unnecessary system resources.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is an interactive schematic diagram of a code block group determination/indication method provided by an embodiment of the present invention;

fig. 2 is a schematic flow chart of a code block group determination method provided by an embodiment of the present invention;

fig. 3 is a schematic flow chart of another method for determining a group of code blocks according to an embodiment of the present invention;

fig. 4 is a schematic flow chart of a code block group indication method provided by an embodiment of the present invention;

fig. 5 is a schematic flow chart of another code block group indication method provided by the embodiment of the invention;

fig. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another user equipment provided in an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another base station according to an embodiment of the present invention.

Detailed Description

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

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".

The code block group determining/indicating method, the user equipment, the base station and the storage medium provided by the embodiment of the invention can be realized in a 5G system, and are mainly designed aiming at the scheme of the feedback process of the downlink HARQ in the 5G system.

To solve the above problem that a specific HARQ feedback scheme is not determined in the 5G system, an embodiment of the present invention provides a code block group determining/indicating method, a user equipment, a base station, and a storage medium, where a PUCCH format is specified in advance for a Physical Uplink Control Channel (PUCCH) transmission format for transmitting downlink HARQ feedback information in the 5G system, that is, several different PUCCH transmission formats are specified in the 5G system, where a bit field size of downlink HARQ feedback corresponding to each PUCCH transmission format is specified in advance, and bit fields of downlink HARQ feedback included in different PUCCH transmission formats are different in size.

In the embodiment of the invention, a base station firstly determines a PUCCH transmission format used by user equipment for downlink HARQ feedback, and then sends indication information for indicating the PUCCH transmission format to the user equipment, the user equipment can determine the bit field size of the downlink HARQ feedback according to the received PUCCH transmission format, divides a code block group CBG according to the bit field size of the downlink HARQ feedback, and generates feedback information of the downlink HARQ according to the decoding condition of the code block group CBG, the user equipment sends the feedback information of the downlink HARQ to the base station, the base station confirms whether the PUCCH transmission format used by the user equipment for sending the feedback information of the downlink HARQ is consistent with the PUCCH transmission format indicated by the indication information according to the received feedback information of the downlink HARQ, if so, the feedback of the downlink HARQ is determined to be successful, and if not, the base station resends the indication information to the user equipment, and the user equipment is enabled to execute the feedback process of the downlink HARQ again. The embodiment of the invention ensures that the grouping of the code block group CBG between the base station and the user equipment has consistent understanding, avoids unnecessary waste of system resources and realizes the feedback process of the downlink HARQ in the 5G system.

Referring to fig. 1, fig. 1 is an interaction schematic diagram of a code block group determination/indication method provided in an embodiment of the present invention, where the method is applicable to a feedback process of downlink HARQ performed between a base station and a user equipment in a 5G system, and as shown in fig. 1, the method may include:

s101: and the base station determines the transmission format of a Physical Uplink Control Channel (PUCCH) used by the user equipment for downlink HARQ feedback.

In the embodiment of the invention, the base station can determine the transmission format of a Physical Uplink Control Channel (PUCCH) used by the user equipment for downlink HARQ feedback, wherein different PUCCH transmission formats comprise different downlink HARQ feedback bit fields with different sizes. For example, the base station may determine that a PUCCH transmission format used when the user equipment performs downlink HARQ feedback is PUCCH format 1. For another example, the base station may determine that a PUCCH transmission format used when the user equipment performs downlink HARQ feedback is PUCCH format 2. For example, the PUCCH format 1 may set a bit field of the downlink HARQ feedback of 6 bits, and the PUCCH format2 may set a bit field of the downlink HARQ feedback of 9 bits.

It should be noted that different PUCCH transmission formats are written in advance in the base station and the user equipment, where for example, 5 different PUCCH transmission formats are written in advance in the base station and the user equipment, that is, PUCCH format 1, PUCCHformat 2, PUCCH format3, PUCCH format 4, and PUCCH format5, where a bit field size of the downlink HARQ feedback included in PUCCH format 1 is 12 bits, a bit field size of the downlink HARQ feedback included in PUCCH format2 is 10 bits, a bit field size of the downlink HARQ feedback included in PUCCH format3 is 8 bits, a bit field size of the downlink HARQ feedback included in PUCCHformat 4 is 6 bits, and a bit field size of the downlink HARQ feedback included in PUCCH format5 is 4 bits.

In an embodiment, a base station may determine a bit field size of downlink HARQ feedback according to the number of code block groups CBGs that need to be divided and a transmission scenario of downlink data transmission, where the transmission scenario at least includes: and determining the PUCCH transmission format according to the bit field size fed back by the downlink HARQ. For example, when the technology such as carrier aggregation is adopted, the number of bits to be fed back is large, and a PUCCH transmission format with strong carrying capacity, that is, a PUCCH format with a large number of bits in a bit domain fed back by HARQ, can be allocated. Conversely, in a single carrier scenario, a PUCCH transmission format with slightly poor carrying capability may be used. In addition to the carrier aggregation technique, the more codewords that are used, the more bits that need to be fed back. Therefore, the bit field size of the downlink HARQ feedback is determined according to the number of code block groups CBGs to be divided and the carrier aggregation condition of downlink data transmission and/or the number of code words, so as to save system resources.

In an embodiment, the bit field size of the downlink HARQ feedback is a product of the number of CBGs to be divided, the number of carriers used for downlink data transmission, and the number of codewords used for downlink data transmission. Namely, the calculation formula of the bit field size of the downlink HARQ feedback is as follows:

n＝m·x·y (1)

wherein n is the bit number of the bit field fed back by the downlink HARQ, m is the number of CBGs, x is the number of carriers, and y is the number of codewords.

Specifically, for example, if the base station determines that the number m of code block groups to be divided is 5, and the transmission scene of the downlink data transmission is a dual-codeword single carrier, the base station calculates, by using formula (1), a product of the number of CBGs, the number of carriers used for downlink data transmission, and the number of codewords used for downlink data transmission, as follows:

n＝5·1·2＝10

therefore, the base station can determine that the bit field size of the downlink HARQ feedback is 10 bits.

As described above, if 5 different PUCCH transmission formats, that is, PUCCH format 1, PUCCH format2, PUCCH format3, PUCCH format 4, and PUCCH format5, are written in advance in the base station and the user equipment, where the bit field size of the downlink HARQ feedback included in PUCCH format 1 is 12 bits, the bit field size of the downlink HARQ feedback included in PUCCH format2 is 10 bits, the bit field size of the downlink HARQ feedback included in PUCCH format3 is 8 bits, the bit field size of the downlink HARQ feedback included in PUCCH format 4 is 6 bits, and the bit field size of the downlink HARQ feedback included in PUCCH format5 is 4 bits. Therefore, the base station may determine that the PUCCH transmission format used by the ue for downlink HARQ feedback is PUCCH format 2.

Furthermore, it should be noted that in NR, there may be three codewords or even more codewords. Therefore, when determining the PUCCH format, the base station needs to consider not only the number of CBGs of a single codeword, but also the number of different codewords and different cell aggregates.

S102: the base station transmits indication information to the user equipment.

In this embodiment of the present invention, a base station may send indication information to the ue, where the indication information is used to indicate the PUCCH transmission format, and the indication information is carried in at least one of the following items: radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, and Downlink Control Information (DCI).

In one embodiment, after determining a PUCCH transmission format used by a user equipment for downlink HARQ feedback, a base station may send, to the user equipment, indication information indicating the PUCCH transmission format through at least one of RRC signaling, MAC signaling, and downlink control information DCI. For example, after determining a PUCCH transmission format used by the user equipment for downlink HARQ feedback, the base station may statically configure the PUCCH transmission format for the user equipment by sending, through MAC signaling, indication information for indicating the PUCCH transmission format to the user equipment. For another example, after determining the PUCCH transmission format used by the user equipment for downlink HARQ feedback, the base station may semi-statically send, through RRC signaling, indication information indicating the PUCCH transmission format to the user equipment, so as to configure the PUCCH transmission format for the user equipment. For another example, after determining the PUCCH transmission format used by the user equipment for downlink HARQ feedback, the base station may dynamically send, through DCI signaling, indication information for indicating the PUCCH transmission format to the user equipment, so as to configure the PUCCH transmission format for the user equipment.

S103: the user equipment acquires the indication information sent by the base station.

In the embodiment of the invention, user equipment can obtain indication information sent by a base station, wherein the indication information is used for indicating a Physical Uplink Control Channel (PUCCH) transmission format used when the user equipment carries out downlink HARQ feedback; wherein, the bit fields of the downlink HARQ feedbacks included in different PUCCH transmission formats are different in size. For example, the user equipment may determine, according to the obtained indication information sent by the base station, that a PUCCH transmission format used when the user equipment performs downlink HARQ feedback is PUCCH format 1.

In one embodiment, the indication information is carried in at least one of: RRC signaling, MAC signaling, and downlink control information DCI. For example, the user equipment may statically receive indication information indicating a PUCCH transmission format, which is transmitted by the base station, through MAC signaling. For another example, the ue may semi-statically receive indication information indicating the PUCCH transmission format, which is sent by the base station through RRC signaling. For another example, the ue may dynamically receive indication information, which is sent by the base station and used for indicating the PUCCH transmission format, through DCI signaling.

S104: and the user equipment determines the bit field size of the downlink HARQ feedback according to the PUCCH transmission format.

In the embodiment of the present invention, the user equipment may determine the bit field size of the downlink HARQ feedback according to the obtained PUCCH transmission format. Specifically, the ue may obtain, from the received indication information, a PUCCH transmission format used when the ue is indicated to perform downlink HARQ feedback, so that the ue determines, from the PUCCH transmission format, a bit field size of the downlink HARQ feedback.

It should be noted that different PUCCH transmission formats are written in the user equipment in advance, for example, if 5 different PUCCH transmission formats are written in advance in the user equipment, that is, PUCCH format 1, PUCCH format2, PUCCHformat 3, PUCCH format 4, and PUCCH format5, where a bit field size of the downlink HARQ feedback included in PUCCH format 1 is 12 bits, a bit field size of the downlink HARQ feedback included in PUCCH format2 is 10 bits, a bit field size of the downlink HARQ feedback included in PUCCH format3 is 8 bits, a bit field size of the downlink HARQ feedback included in PUCCH format 4 is 6 bits, and a bit field size of the downlink HARQ feedback included in PUCCH format5 is 4 bits.

Specifically, for example, if the PUCCH transmission format used by the ue when obtaining, from the received indication information, the indication that the ue performs the downlink HARQ feedback is PUCCH format2, where the bit field size of the downlink HARQ feedback included in the PUCCH format2 is 10 bits, the ue may determine that the bit field size of the downlink HARQ feedback is 10 bits from the PUCCH format2 transmission format.

S105: and the user equipment divides the code block group CBG according to the bit field size fed back by the downlink HARQ and generates the feedback information of the downlink HARQ according to the decoding condition of the code block group CBG.

In the embodiment of the present invention, the user equipment may divide the code block group CBG according to the bit field size fed back by the downlink HARQ, and generate the feedback information of the downlink HARQ according to the decoding condition of the code block group CBG.

In an embodiment, the user equipment may determine the number of CBGs to be divided according to the bit field size fed back by the downlink HARQ and the transmission scenario of downlink data transmission; wherein the transmission scenario at least comprises: the case of carrier aggregation and/or the number of codewords; dividing the CBG according to the number of the CBG to be divided, wherein the calculation formula of the number of the CBG is as follows:

wherein, N is the number of CBGs, N is the number of bits of the bit field fed back by the downlink HARQ, x is the number of carriers, and y is the number of codewords.

Specifically, for example, if the bit field size of the downlink HARQ feedback acquired by the user equipment is 10 bits, and the transmission scenario of the downlink data transmission is acquired as a dual-codeword single carrier, the user equipment may calculate, according to the formula described in formula (2), the number of CBGs to be divided as follows:

therefore, the user equipment can determine that the number of CBGs to be divided is 5.

It should be noted that, for different transmission scenarios, the user equipment may determine different numbers of CBGs in the same PUCCH transmission format. For example, if the PUCCH transmission format of the downlink HARQ feedback acquired by the user equipment is PUCCHformat 2, and the bit field size thereof is 10 bits, if the transmission scenario of the downlink data transmission acquired by the user equipment is a single codeword single carrier, then n ═ 10, x ═ 1, and y ═ 1 according to formula (2), so that the corresponding CBG number can be calculated as:

therefore, the user equipment can determine that the number of CBGs to be divided is 10.

For another example, if the PUCCH transmission format of the downlink HARQ feedback acquired by the user equipment is PUCCH format2, the bit field size of the PUCCH format is 10 bits, and the transmission scenario of the downlink data transmission acquired by the user equipment is a dual codeword single carrier, then it can be known that n is 10, x is 1, and y is 2 according to equation (2), so that the corresponding CBG number can be calculated as:

For another example, if the PUCCH transmission format of the downlink HARQ feedback acquired by the user equipment is PUCCH format2, the bit field size of the PUCCH format is 10 bits, and the transmission scenario of the downlink data transmission acquired by the user equipment is single codeword five-carrier, then n is 10, x is 5, and y is 1 according to equation (2), so that the corresponding CBG number can be calculated as:

therefore, the user equipment can determine that the number of CBGs to be divided is 2.

For another example, if the PUCCH transmission format of the downlink HARQ feedback acquired by the user equipment is PUCCH format2, the bit field size of the PUCCH format is 10 bits, and the transmission scenario of the downlink data transmission acquired by the user equipment is double codeword five-carrier, then n ═ 10, x ═ 5, and y ═ 2 can be known according to equation (2), so that the corresponding CBG number can be calculated as:

therefore, the user equipment can determine that the number of CBGs to be divided is 1.

In an embodiment, the ue may generate the feedback information of the downlink HARQ according to the determined number of CBGs and according to the decoding condition of the CBGs. Specifically, for example, if the user equipment divides the number of CBG divisions into 4, and if one transport block TB of the user equipment has 100 CBs in total, the user equipment may obtain 25 CBs by calculating 100/4 to 25, and use the 25 CBs as one CBG to generate feedback information, so as to perform downlink HARQ feedback.

S106: and the user equipment sends the feedback information of the downlink HARQ to the base station.

In the embodiment of the present invention, the ue may send the feedback information of the downlink HARQ to the base station.

S107: and the base station receives the feedback information of the downlink HARQ sent by the user equipment.

In the embodiment of the present invention, the base station may receive the feedback information of the downlink HARQ sent by the user equipment, and determine whether to retransmit downlink data according to the feedback information. .

S108: and the base station confirms whether the PUCCH transmission format used for sending the feedback information of the downlink HARQ by the user equipment is consistent with the PUCCH transmission format indicated by the indication information.

In the embodiment of the present invention, the base station may determine whether a PUCCH transmission format used by the user equipment to send the feedback information of the downlink HARQ is consistent with a PUCCH transmission format indicated by the indication information. Specifically, the base station obtains the PUCCH transmission format of the downlink HARQ feedback information according to the received downlink HARQ feedback information sent by the user equipment, and determines whether the PUCCH transmission format of the downlink HARQ feedback information is consistent with the PUCCH transmission format indicated by the indication information.

S109: and if the base station confirms that the PUCCH transmission format used for sending the feedback information of the downlink HARQ by the user equipment is inconsistent with the PUCCH transmission format indicated by the indication information, the base station resends the indication information to the user equipment.

In the embodiment of the present invention, if the base station confirms that the PUCCH transmission format used by the user equipment to send the feedback information of the downlink HARQ is not consistent with the PUCCH transmission format indicated by the indication information, the base station resends the indication information to the user equipment. Therefore, the implementation mode can save system resources and improve the utilization rate of the system resources.

In the embodiment of the invention, after determining a PUCCH transmission format used by user equipment for downlink HARQ feedback, a base station sends indication information for indicating the PUCCH transmission format to the user equipment, the user equipment acquires the PUCCH transmission format according to the received indication information, determines the bit field size of downlink HARQ feedback according to the transmission format, divides a code block group CBG according to the bit field size of the downlink HARQ feedback, generates feedback information of the downlink HARQ according to the decoding condition of the code block group CBG, returns the generated feedback information of the downlink HARQ to the base station, and resends the indication information to the user equipment if the base station confirms that the PUCCH transmission format used by the user equipment for sending the feedback information of the downlink HARQ is inconsistent with the PUCCH transmission format indicated by the indication information. Therefore, the indication and the determination of the code block group in the 5G system can be realized, the grouping of the code block group CBG between the base station and the user equipment can be understood consistently, and the unnecessary waste of system resources is avoided.

Referring to fig. 2, fig. 2 is a schematic flowchart of a code block group determining method provided in an embodiment of the present invention, where the method is applied to code block group determination in a feedback process of downlink HARQ of a user equipment in a 5G system, and as shown in fig. 2, the method may include:

s201: and acquiring the indication information sent by the base station.

In the embodiment of the present invention, the user equipment may obtain indication information sent by the base station, where the indication information is used to indicate a transmission format of a physical uplink control channel, PUCCH, used by the user equipment when performing downlink HARQ feedback, and the transmission format is used to transmit feedback information of an uplink hybrid automatic repeat request, HARQ. Wherein, the bit fields of the downlink HARQ feedbacks included in different PUCCH transmission formats are different in size. For example, the user equipment may determine, according to the obtained indication information sent by the base station, that a PUCCH transmission format used when the user equipment performs downlink HARQ feedback is PUCCH format 1.

In an embodiment, the indication information obtained by the ue is carried in at least one of the following: RRC signaling, MAC signaling, and downlink control information DCI. For example, the user equipment may statically receive indication information indicating a PUCCH transmission format, which is transmitted by the base station, through MAC signaling. For another example, the ue may semi-statically receive indication information indicating the PUCCH transmission format, which is sent by the base station through RRC signaling. For another example, the ue may dynamically receive indication information, which is sent by the base station and used for indicating the PUCCH transmission format, through DCI signaling.

S202: and determining the bit field size of the downlink HARQ feedback according to the PUCCH transmission format.

In the embodiment of the invention, the user equipment can determine the bit field size of the downlink HARQ feedback according to the PUCCH transmission format. Specifically, the ue may obtain, from the received indication information, a PUCCH transmission format used when the ue is indicated to perform downlink HARQ feedback, so that the ue determines, from the PUCCH transmission format, a bit field size of the downlink HARQ feedback.

S203: and dividing the code block group CBG according to the bit field size fed back by the downlink HARQ, and generating the feedback information of the downlink HARQ according to the decoding condition of the code block group CBG.

In an embodiment, the user equipment may determine the number of CBGs to be divided according to the bit field size fed back by the downlink HARQ and the transmission scenario of downlink data transmission; wherein the transmission scenario at least comprises: the case of carrier aggregation and/or the number of codewords; and dividing the CBG according to the number of the CBG needing to be divided, wherein a calculation formula of the number of the CBG is shown as a formula (2).

S204: and sending the feedback information of the downlink HARQ to the base station.

In the embodiment of the invention, the user equipment determines the bit field size fed back by the downlink HARQ according to the PUCCH transmission format in the indication information by acquiring the indication information sent by the base station, divides the code block group CBG according to the bit field size fed back by the downlink HARQ, generates the feedback information of the downlink HARQ according to the decoding condition of the code block group CBG, and returns the feedback information of the downlink HARQ to the base station, thereby realizing the determination of the user equipment in the 5G system on the code block group, leading the user equipment and the base station to have consistent understanding on the code block group grouping, and avoiding the unnecessary waste of system resources.

Referring to fig. 3, fig. 3 is a schematic flowchart of another code block group determination method provided in an embodiment of the present invention, where the method is applied to code block group determination in a feedback process of downlink HARQ of a user equipment in a 5G system, and as shown in fig. 3, the method may include:

s301: and acquiring the indication information sent by the base station.

In the embodiment of the present invention, the ue may obtain indication information sent by the base station, where the indication information is used to indicate a transmission format of a physical uplink control channel, PUCCH, used by the ue when performing downlink HARQ feedback, and the transmission format information is used to transmit feedback information of an uplink hybrid automatic repeat request HARQ. Wherein, the bit fields of the downlink HARQ feedbacks included in different PUCCH transmission formats are different in size. For example, the ue may determine, according to the obtained indication information sent by the base station, that a PUCCH transmission format used when the ue performs downlink HARQ feedback is PUCCHformat 1.

S302: and determining the bit field size of the downlink HARQ feedback according to the PUCCH transmission format.

S303: and determining the number of CBGs to be divided according to the bit field size fed back by the downlink HARQ and the transmission scene of the downlink data transmission.

In the embodiment of the invention, the user equipment can determine the number of CBGs to be divided according to the bit field size fed back by the downlink HARQ and the transmission scene of downlink data transmission. Wherein the transmission scenario at least comprises: the case of carrier aggregation and/or the number of codewords.

S304: and dividing the CBG according to the number of the CBGs to be divided.

In the embodiment of the invention, the user equipment can divide the CBG according to the number of the CBGs required to be divided.

S305: and generating feedback information of the downlink HARQ according to the decoding condition of the code block group CBG.

In the embodiment of the invention, the user equipment can generate the feedback information of the downlink HARQ according to the decoding condition of the CBG. Specifically, for example, if the user equipment divides the number of CBG divisions into 4, and if one transport block TB of the user equipment has 100 CBs in total, the user equipment may obtain 25 CBs by calculating 100/4 to 25, and use the 25 CBs as one CBG to generate feedback information, so as to perform downlink HARQ feedback.

S306: and sending the feedback information of the downlink HARQ to the base station.

In the embodiment of the present invention, the ue may send the feedback information of the downlink HARQ to the base station. For example, the user equipment may obtain one CBG with 25 CBs as the indication information, and total 4 CBGs, encode the 4 CBGs to generate feedback information of the downlink HARQ, and return the feedback information to the base station.

In the embodiment of the invention, the user equipment acquires the PUCCH transmission format from the indication information by acquiring the indication information sent by the base station, determines the bit field size fed back by the downlink HARQ according to the transmission format, divides the code block group CBG according to the bit field size fed back by the downlink HARQ, generates the feedback information of the downlink HARQ according to the decoding condition of the code block group CBG, and sends the feedback information to the base station, thereby realizing the determination of the user equipment on the code block group grouping in the 5G system, ensuring that the user equipment and the base station have consistent understanding on the code block group grouping, and avoiding the unnecessary waste of system resources.

Referring to fig. 4, fig. 4 is a schematic flowchart of a code block group indication method provided in an embodiment of the present invention, and the method is applied to code block group indication of a downlink HARQ feedback process of a base station in a 5G system, as shown in fig. 4, the method may include:

s401: and determining a Physical Uplink Control Channel (PUCCH) transmission format used by the user equipment for downlink HARQ feedback.

It should be noted that different PUCCH transmission formats are written in advance in the base station and the user equipment, where each PUCCH transmission format includes a bit field size of the downlink HARQ feedback, for example, 5 different PUCCH transmission formats are written in advance in the base station and the user equipment, that is, PUCCH format 1, PUCCH format2, PUCCH format3, PUCCHformat 4, and PUCCH format5, where the bit field size of the downlink HARQ feedback included in PUCCH format 1 is 12 bits, the bit field size of the downlink HARQ feedback included in PUCCH format2 is 10 bits, the bit field size of the downlink HARQ feedback included in PUCCH format3 is 8 bits, the bit field size of the downlink HARQ feedback included in PUCCH format 4 is 6 bits, and the bit field size of the downlink HARQ feedback included in PUCCH format5 is 4 bits.

In an embodiment, the bit field size of the downlink HARQ feedback is a product of the number of CBGs to be divided, the number of carriers used for downlink data transmission, and the number of codewords used for downlink data transmission. Namely, the bit field size of the downlink HARQ feedback is calculated according to formula (1).

n＝5·1·2＝10

S402: and sending indication information to the user equipment.

In the embodiment of the invention, the base station can send the indication information to the user equipment. Wherein the indication information is used for indicating the PUCCH transmission format, and the indication information is carried in at least one of the following items: radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, first-level L1 signaling and Downlink Control Information (DCI).

In one embodiment, after determining a PUCCH transmission format used by a user equipment for downlink HARQ feedback, a base station may send indication information indicating the PUCCH transmission format to the user equipment through at least one of RRC signaling, MAC signaling, L1 signaling, and downlink control information DCI. For example, after determining the PUCCH transmission format used by the user equipment for downlink HARQ feedback, the base station may statically configure the PUCCH transmission format for the user equipment by sending indication information indicating the PUCCH transmission format to the user equipment through MAC signaling and/or L1 signaling. For another example, after determining the PUCCH transmission format used by the user equipment for downlink HARQ feedback, the base station may semi-statically send, through RRC signaling, indication information indicating the PUCCH transmission format to the user equipment, so as to configure the PUCCH transmission format for the user equipment. For another example, after determining the PUCCH transmission format used by the user equipment for downlink HARQ feedback, the base station may dynamically send, through DCI signaling, indication information for indicating the PUCCH transmission format to the user equipment, so as to configure the PUCCH transmission format for the user equipment.

S403: and receiving the feedback information of the downlink HARQ sent by the user equipment.

In the embodiment of the present invention, the base station may receive the feedback information of the downlink HARQ sent by the user equipment.

In one embodiment, after receiving the feedback information of the downlink HARQ sent by the user equipment, the base station may confirm whether a PUCCH transmission format used by the user equipment to send the feedback information of the downlink HARQ is consistent with a PUCCH transmission format indicated by the indication information. Specifically, the base station obtains the PUCCH transmission format of the downlink HARQ feedback information according to the received downlink HARQ feedback information sent by the user equipment, and determines whether the PUCCH transmission format of the downlink HARQ feedback information is consistent with the PUCCH transmission format indicated by the indication information.

In an embodiment, if it is determined that the PUCCH transmission format used by the ue to send the feedback information of the downlink HARQ is not consistent with the PUCCH transmission format indicated by the indication information, the base station retransmits the indication information to the ue. Therefore, the implementation mode can save system resources and improve the utilization rate of the system resources.

In the embodiment of the invention, after a base station determines a PUCCH transmission format used by user equipment for downlink HARQ feedback, the base station sends indication information for indicating the PUCCH transmission format to the user equipment, and when the base station receives the downlink HARQ feedback information sent by the user equipment, if the base station determines that the PUCCH transmission format used by the user equipment for sending the downlink HARQ feedback information is inconsistent with the PUCCH transmission format indicated by the indication information, the base station resends the indication information to the user equipment, so that indication of code block group grouping at a base station side in a 5G system is realized, the grouping of code block groups CBG between the base station and the user equipment is understood consistently, and unnecessary waste of system resources is avoided.

Referring to fig. 5, fig. 5 is a schematic flowchart of another code block group indication method provided in an embodiment of the present invention, where the method is applied to code block group indication of a downlink HARQ feedback process of a base station in a 5G system, and as shown in fig. 5, the method may include:

s501: and determining the bit field size of the downlink HARQ feedback according to the number of the code block groups CBG needing to be divided and the transmission scene of the downlink data transmission.

In the embodiment of the present invention, a base station may determine the bit field size of downlink HARQ feedback according to the number of code block groups CBG that need to be divided and a transmission scenario of downlink data transmission, where the transmission scenario at least includes: and determining the PUCCH transmission format according to the bit field size fed back by the downlink HARQ. For example, when the technology such as carrier aggregation is adopted, the number of bits to be fed back is large, and a PUCCH transmission format with strong carrying capacity, that is, a PUCCH format with a large number of bits in a bit domain fed back by HARQ, can be allocated. Conversely, in a single carrier scenario, a PUCCH transmission format with slightly poor carrying capability may be used. In addition to the carrier aggregation technique, the more codewords that are used, the more bits that need to be fed back. Therefore, the bit field size of the downlink HARQ feedback is determined according to the number of code block groups CBGs to be divided and the carrier aggregation condition of downlink data transmission and/or the number of code words, so as to save system resources.

n＝5·1·2＝10

S502: and determining the PUCCH transmission format according to the bit field size fed back by the downlink HARQ.

In the embodiment of the invention, the base station can determine the PUCCH transmission format according to the bit field size fed back by the downlink HARQ. Specifically, as described above, 5 different PUCCH transmission formats, namely PUCCH format 1, PUCCH format2, PUCCH format3, PUCCH format 4, and PUCCH format5, may be written in advance in the base station and the user equipment, where a bit field size of the downlink HARQ feedback included in PUCCH format 1 is 12 bits, a bit field size of the downlink HARQ feedback included in PUCCH format2 is 10 bits, a bit field size of the downlink HARQ feedback included in PUCCH format3 is 8 bits, a bit field size of the downlink HARQ feedback included in PUCCH format 4 is 6 bits, and a bit field size of the downlink HARQ feedback included in PUCCH format5 is 4 bits. Therefore, the base station may determine that the PUCCH transmission format used by the ue for downlink HARQ feedback is PUCCH format 2.

S503: and sending indication information to the user equipment.

In this embodiment of the present invention, a base station may send indication information to a user equipment, where the indication information is used to indicate the PUCCH transmission format, and the indication information is carried in at least one of the following items: radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling and Downlink Control Information (DCI).

S504: and receiving the feedback information of the downlink HARQ sent by the user equipment.

S505: and confirming whether the PUCCH transmission format used for sending the feedback information of the downlink HARQ by the user equipment is consistent with the PUCCH transmission format indicated by the indication information.

In the embodiment of the present invention, after receiving the feedback information of the downlink HARQ returned by the user equipment through the PUCCH channel, the base station may determine whether a PUCCH transmission format used by the user equipment to send the feedback information of the downlink HARQ is consistent with a PUCCH transmission format indicated by the indication information. Specifically, the base station obtains the PUCCH transmission format of the downlink HARQ feedback information according to the received downlink HARQ feedback information sent by the user equipment, and determines whether the PUCCH transmission format of the downlink HARQ feedback information is consistent with the PUCCH transmission format indicated by the indication information.

S506: and if the PUCCH transmission format used for sending the feedback information of the downlink HARQ by the user equipment is inconsistent with the PUCCH transmission format indicated by the indication information, resending the indication information.

In the embodiment of the present invention, if the base station determines that the PUCCH transmission format used by the user equipment to send the feedback information of the downlink HARQ is inconsistent with the PUCCH transmission format indicated by the indication information, the base station retransmits the indication information to the user equipment. Therefore, the implementation method can save system resources and avoid waste of the system resources.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. Specifically, the user equipment includes an obtaining unit 601, a first determining unit 602, a generating unit 603, and a first sending unit 604. Wherein,

an obtaining unit 601, configured to obtain indication information sent by a base station, where the indication information is used to indicate a physical uplink control channel PUCCH transmission format used when a user equipment performs downlink HARQ feedback; wherein, the bit fields of the downlink HARQ feedbacks included in different PUCCH transmission formats are different in size;

a first determining unit 602, configured to determine, according to the PUCCH transmission format, a bit field size of downlink HARQ feedback;

a generating unit 603, configured to divide a code block group CBG according to the bit field size fed back by the downlink HARQ, and generate feedback information of the downlink HARQ according to the decoding condition of the code block group CBG;

a first sending unit 604, configured to send the feedback information of the downlink HARQ to the base station.

Optionally, the indication information is carried in at least one of the following: radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling and Downlink Control Information (DCI).

Optionally, the generating unit 603 is specifically configured to determine the number of CBGs to be divided according to the bit field size fed back by the downlink HARQ and a transmission scenario of downlink data transmission; wherein the transmission scenario at least comprises: the case of carrier aggregation and/or the number of codewords; and dividing the CBG according to the number of the CBGs to be divided.

Optionally, the generating unit 603 is further configured to determine that the CBGs are in number of CBGsWherein n is the bit number of the bit field fed back by the downlink HARQ, x is the number of carriers, and y is the number of codewords. .

In the embodiment of the present invention, the user equipment acquires the indication information sent by the base station through the acquisition unit 601, the first determination unit 602 determines the bit field size fed back by the downlink HARQ according to the PUCCH transmission format, the generation unit 603 divides the code block group CBG according to the bit field size fed back by the downlink HARQ, and generates the feedback information of the downlink HARQ according to the decoding condition of the code block group CBG, and the first transmission unit 604 sends the feedback information of the downlink HARQ to the base station, thereby achieving the determination of the code block group grouping of the user equipment in the 5G system, enabling the user equipment and the base station to understand the grouping of the code block group consistently, and avoiding the waste of unnecessary system resources.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention. Specifically, the base station includes a second determining unit 701, a second transmitting unit 702, and a receiving unit 703. Wherein,

a second determining unit 701, configured to determine a PUCCH transmission format used by the ue when performing downlink HARQ feedback; wherein, the bit fields of the downlink HARQ feedbacks included in different PUCCH transmission formats are different in size;

a second sending unit 702, configured to send indication information to the user equipment, where the indication information is used to indicate the PUCCH transmission format;

a receiving unit 703 is configured to receive feedback information of the downlink HARQ sent by the user equipment.

Optionally, the second determining unit 701 is specifically configured to determine a bit field size of the downlink HARQ feedback according to the number of code block groups CBG that need to be divided and a transmission scenario of downlink data transmission; wherein the transmission scenario at least comprises: the case of carrier aggregation and/or the number of codewords; and determining the PUCCH transmission format according to the bit field size fed back by the downlink HARQ.

Optionally, the second determining unit 701 is further configured to determine that the bit field size fed back by the downlink HARQ feedback is a product of the number of CBGs to be divided, the number of carriers used for downlink data transmission, and the number of codewords used for downlink data transmission.

Optionally, the base station further comprises an acknowledgement unit 704,

the confirming unit 704 is configured to confirm whether a PUCCH transmission format used by the user equipment to send the feedback information of the downlink HARQ is consistent with a PUCCH transmission format indicated by the indication information; and if the PUCCH transmission format used for sending the feedback information of the downlink HARQ by the user equipment is inconsistent with the PUCCH transmission format indicated by the indication information, resending the indication information.

In the embodiment of the present invention, a base station determines, by a second determining unit 701, a PUCCH transmission format of a physical uplink control channel used by a user equipment when performing downlink HARQ feedback, sends instruction information to the user equipment by a second sending unit 702, receives instruction information sent by the user equipment by a receiving unit 703, and confirms, by the determining unit 703, whether a PUCCH transmission format used by the user equipment to send the downlink HARQ feedback information is consistent with a PUCCH transmission format indicated by the instruction information, and if not, retransmits the instruction information. Therefore, the code block group of the user equipment in the 5G system is determined, the grouping of the code block groups between the user equipment and the base station is understood consistently, and unnecessary waste of system resources is avoided.

Referring to fig. 8, fig. 8 is a schematic structural diagram of another user equipment according to an embodiment of the present invention, and as shown in fig. 8, the user equipment in the embodiment may include: one or more processors 801; one or more input devices 802, one or more output devices 803, and memory 804. The processor 801, the input device 802, the output device 803, and the memory 804 described above are connected by a bus 805. The memory 802 is used to store computer programs comprising program instructions, and the processor 801 is used to execute the program instructions stored by the memory 802. Wherein the processor 801 is configured to invoke the program instructions to perform:

and sending the feedback information of the downlink HARQ to the base station.

Further, the indication information is carried in at least one of the following: radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, first-level L1 signaling and Downlink Control Information (DCI).

Further, the processor 801 is further configured to call the program instructions to perform the following operations:

determining the number of CBGs to be divided according to the bit field size fed back by the downlink HARQ and the transmission scene of downlink data transmission; wherein the transmission scenario at least comprises: the case of carrier aggregation and/or the number of codewords;

and dividing the CBG according to the number of the CBGs to be divided.

the number of CBG isWherein n is the bit number of the bit field fed back by the downlink HARQ, x is the number of carriers, and y is the number of codewords.

It should be understood that in the present embodiment, the Processor 801 may be a Central Processing Unit (CPU), and the Processor may be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The input device 802 may include a touch pad, a fingerprint sensor (for collecting fingerprint information of a user and direction information of the fingerprint), a microphone, etc., and the output device 803 may include a display (LCD, etc.), a speaker, etc.

The memory 804 may include both read-only memory and random access memory, and provides instructions and data to the processor 801. A portion of the memory 804 may also include non-volatile random access memory. For example, the memory 804 may also store device type information.

In a specific implementation, the processor 801, the input device 802, and the output device 803 described in this embodiment of the present invention may execute the implementation described in the embodiment of fig. 2 or the embodiment of fig. 3 of the code block group determining method provided in this embodiment of the present invention, and may also execute the implementation of the terminal described in this embodiment of the present invention, which is not described herein again.

Referring to fig. 9, fig. 9 is a schematic structural diagram of another base station according to an embodiment of the present invention, and as shown in fig. 9, the base station according to the embodiment of the present invention includes: at least one processor 901, e.g., a CPU, at least one communication interface 903, memory 902. The communication interface 903 may include a Display (Display) and a Keyboard (Keyboard), and optionally, the communication interface 903 may also include a standard wired interface and a standard wireless interface. Memory 904 may include volatile Memory (vollatile Memory), such as Random Access Memory (RAM); the Memory may also include a Non-Volatile Memory (Non-Volatile Memory), such as a Read-Only Memory (ROM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, HDD), or a Solid-State Drive (SSD); the memory 902 may also comprise a combination of the above-described types of memory. The memory 902 may alternatively be at least one storage device located remotely from the processor 901. Wherein the memory 902 stores a set of program codes therein, and the processor 901 calls the program codes stored in the memory 902, wherein the processor 901 is configured to call the program instructions to perform:

Further, the processor 901 is further configured to call the program instruction to perform the following operations:

determining the bit field size of downlink HARQ feedback according to the number of Code Block Groups (CBGs) needing to be divided and a transmission scene of downlink data transmission; wherein the transmission scenario at least comprises: the case of carrier aggregation and/or the number of codewords;

and determining the PUCCH transmission format according to the bit field size fed back by the downlink HARQ.

the bit field size of the downlink HARQ feedback is the product of the number of CBGs to be divided, the number of carriers used for downlink data transmission and the number of code words used for downlink data transmission.

confirming whether a PUCCH transmission format used for sending the feedback information of the downlink HARQ by the user equipment is consistent with a PUCCH transmission format indicated by the indication information;

and if the PUCCH transmission format used for sending the feedback information of the downlink HARQ by the user equipment is inconsistent with the PUCCH transmission format indicated by the indication information, resending the indication information.

It should be understood that, in the embodiment of the present invention, the Processor 901 may be a Central Processing Unit (CPU), and the Processor may also be other general processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The input device 902 may include a touch pad, a fingerprint sensor (for collecting fingerprint information of a user and direction information of the fingerprint), a microphone, etc., and the output device 903 may include a display (LCD, etc.), a speaker, etc.

The memory 904 may include both read-only memory and random access memory, and provides instructions and data to the processor 901. A portion of the memory 904 may also include non-volatile random access memory. For example, memory 904 may also store device type information.

In a specific implementation, the processor 901, the input device 902, and the output device 903 described in this embodiment of the present invention may execute the implementation described in the embodiment of fig. 4 or the embodiment of fig. 5 of the code block group indication method provided in this embodiment of the present invention, and may also execute the implementation of the terminal described in this embodiment of the present invention, which is not described herein again.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the implementation described in any one of the embodiments in fig. 1 to fig. 7 of the present invention is implemented, and the implementation of the user equipment described in fig. 8 of the present invention or the implementation of the base station described in the embodiment in fig. 9 may also be implemented, which is not described herein again.

The computer readable storage medium may be an internal storage unit of the terminal according to any of the foregoing embodiments, for example, a hard disk or a memory of the terminal. The computer readable storage medium may also be an external storage device of the terminal, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the terminal. Further, the computer-readable storage medium may also include both an internal storage unit and an external storage device of the terminal. The computer-readable storage medium is used for storing the computer program and other programs and data required by the terminal. The computer readable storage medium may also be used to temporarily store data that has been output or is to be output.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

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

In the several embodiments provided in the present application, it should be understood that the disclosed user equipment, base station and method may be implemented in other manners. For example, the division of the units is only one logical division, and the actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces or units, and may also be an electrical, mechanical or other form of connection.

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

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

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

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A code block group determination method, comprising:

and sending the feedback information of the downlink HARQ to the base station.

2. The method of claim 1, wherein the indication information is carried in at least one of: radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling and Downlink Control Information (DCI).

3. The method of claim 1, wherein the dividing the Code Block Group (CBG) according to the bit field size fed back by the downlink HARQ comprises:

and dividing the CBG according to the number of the CBGs to be divided.

4. The method of claim 3, wherein the determining the number of CBGs to be divided according to the bit field size fed back by the downlink HARQ and the transmission scenario of downlink data transmission comprises:

5. A code block group indication method, comprising:

6. The method of claim 5, wherein the indication information is carried in at least one of: radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, first-level L1 signaling and Downlink Control Information (DCI).

7. The method according to claim 5, wherein the determining a Physical Uplink Control Channel (PUCCH) transmission format used by the user equipment for downlink HARQ feedback comprises:

8. The method of claim 7, wherein the determining the bit field size of the downlink HARQ feedback according to the number of CBGs to be divided and a transmission scenario of downlink data transmission comprises:

9. The method of claim 5, further comprising:

10. A user equipment, characterized in that it comprises means for performing the method of any of claims 1-4.

11. A base station, characterized in that it comprises means for performing the method according to any of claims 5-9.

12. User equipment, characterized in that it comprises a processor, an input device, an output device and a memory, said processor, input device, output device and memory being interconnected, wherein said memory is used to store a computer program comprising program instructions, said processor being configured to invoke said program instructions to perform the method according to any of claims 1-4.

13. A base station comprising a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory being interconnected, wherein the memory is configured to store a computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method of any of claims 5 to 9.

14. A computer-readable storage medium, characterized in that the computer storage medium stores a computer program comprising program instructions that, when executed by a processor, cause the processor to perform the method according to any of claims 1-9.