CN111614446B

CN111614446B - Communication processing method and communication processing device

Info

Publication number: CN111614446B
Application number: CN201910135722.0A
Authority: CN
Inventors: 焦淑蓉; 花梦
Original assignee: Huawei Technologies Co Ltd
Current assignee: XFusion Digital Technologies Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2021-06-29
Anticipated expiration: 2039-02-22
Also published as: CN111614446A

Abstract

The embodiment of the application discloses a communication processing method and a communication processing device, which are used for improving data transmission performance. The method in the embodiment of the application comprises the following steps: the method comprises the steps that terminal side equipment receives a first message sent by network side equipment, wherein the first message is used for configuring the bit number contained in a coding block group emptying information CBGFI domain in downlink control information DCI; the terminal side equipment receives a second message sent by the network side equipment, wherein the second message is used for determining at least one coding block group CBG corresponding to the bit of the bit number; and the terminal side equipment determines at least one CBG corresponding to the bit of the bit number according to the second message.

Description

Communication processing method and communication processing device

Technical Field

The present application relates to communications technologies, and in particular, to a communication processing method and a communication processing apparatus.

Background

The fifth generation (5G) mobile communication system supports enhanced mobile broadband (eMBB) services, ultra and low latency communication (URLLC) services, and the like.

The generation of data packets of URLLC traffic is bursty and random, and may not generate data packets for a long time or may generate multiple data packets for a short time. In order to meet the ultra-short delay requirement of the URLLC service, the base station preempts the time-frequency resource for transmitting the eMBB service data to transmit the URLLC service data. At present, a base station issues downlink control information to a terminal side device, where the downlink control information is used to indicate a resource that the terminal side device is seized by a URLLC service, so as to reduce an influence of the seizing on an eMBB terminal, and the downlink control information includes a Code Block Group Flushing Information (CBGFI) bit, where the CBGFI bit is only 1 bit, and is used to indicate that a decoding cache corresponding to a Code Block Group (CBG) of a subsequent retransmission is completely flushed or not flushed by the terminal side device.

However, for CBGs retransmitted in an eMBB Transport Block (TB), some CBG transmission failures are caused by channel fading or channel interference, and some CBG transmission failures are caused by resources being preempted by URLLC traffic. Since the CBGFI has only 1 bit, it can only be used to indicate that the terminal side device completely clears or does not completely clear the buffer corresponding to the retransmitted CBG, and in order to avoid interference of URLLC service data retained in the buffer, generally, this buffer is indicated to be completely cleared at this time. Therefore, when a CBG which is preempted by the URLLC service and fails to be transmitted and a CBG which fails to be transmitted due to channel fading or interference exist in the CBG to be retransmitted at the same time, the terminal side device determines to empty the buffer corresponding to the retransmitted CBG according to the CBGFI bit, so that Incremental Redundancy (IR) combining gain is lost, and data transmission performance is reduced.

Disclosure of Invention

The embodiment of the application provides a communication processing method and a communication processing device, which are used for improving data transmission performance.

A first aspect of an embodiment of the present application provides a communication processing method, including:

in the communication process, the network side equipment allocates the bit number of the CBGFI domain to the terminal side equipment through the first message, namely the bit number contained in the CBGFI domain is flexible and configurable; then, the terminal-side device may receive a second message sent by the network-side device, and determine, through the second message, at least one CBG corresponding to a bit of the bit number. Therefore, according to the technical scheme of the application, the network side device can configure the bit number of the CBGFI domain for the terminal side device, and the bit of the bit number corresponds to at least one CBG. When there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to being preempted by URLLC service at the same time, the terminal side device may perform corresponding processing on these CBGs through the bits corresponding to the CBGFI domain, so as to reduce or avoid emptying the buffer of the CBGs that fail to be transmitted due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

In a possible implementation manner, the first message may be Radio Resource Control (RRC), the second message may be Downlink Control Information (DCI), and the at least one CBG determined by the second message is the at least one CBG to be retransmitted. In this possible implementation manner, a specific possible form of the first message and the second message is provided, and the terminal-side device may determine, according to the second message, at least one CBG to be retransmitted corresponding to a bit in the CBGFI field bits. The terminal side device may perform corresponding processing on at least one CBG to be retransmitted corresponding to the bit according to the state of the bit, so that it may be reduced or avoided that the buffer of the CBG that fails to be transmitted due to channel fading or channel interference is also emptied, and gain loss is reduced or avoided, thereby improving data transmission performance.

In another possible implementation manner, the first message and the second message may both be RRC messages, and the second message indicates a correspondence relationship between bits of the bit number and the at least one CBG. In this possible implementation, another specific form of the first message and the second message is provided, and the terminal-side device may determine, according to the second message, at least one CBG corresponding to a bit in the CBGFI field bits. Therefore, after the terminal side device determines at least one CBG corresponding to a bit in the CBGFI domain bit, the terminal side device may perform corresponding processing on the CBG to be retransmitted included in the at least one CBG corresponding to the bit according to the state of the bit, so that it is possible to reduce or avoid emptying the buffer of the CBG that has failed in transmission due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

In another possible implementation manner, after the terminal side device determines, according to the second message, at least one CBG corresponding to a bit of the bit number, the method may further include: firstly, the terminal side device may receive DCI; then, the terminal side device may determine at least one CBG to be retransmitted in the at least one CBG according to the DCI. In this possible implementation manner, after the terminal-side device determines at least one CBG corresponding to a bit of the bit number, the to-be-retransmitted CBG in the at least one CBG may be determined through DCI sent by the network-side device, and then the terminal-side device may perform corresponding processing on the to-be-retransmitted CBG according to a state of the bit.

In another possible implementation manner, the at least one CBG may include at least a first CBG belonging to the first transport block and a second CBG belonging to the second transport block, a sequence number of the first CBG in the first transport block is the same as a sequence number of the second CBG in the second transport block, and the first CBG and the second CBG correspond to the same bit in the CBGFI field. In this possible implementation, for a multiple-input multiple-output (MIMO) mode, and a terminal side device is configured to use a 2TB transmission mode, because time-frequency resources used by CBGs to be retransmitted with sequence numbers on different TBs are the same or mostly the same, when none of the CBGs with the same sequence number on different TBs is successfully transmitted, reasons why the two CBGs are unsuccessfully transmitted are largely the same, and therefore, in this possible implementation, a first CBG and a second CBG with the same sequence number on different TBs are indicated by using the same bit in a CBGFI domain, so that the CBG indicated by the bit in the CBGFI domain has pertinence.

In another possible implementation manner, the at least one CBG may include at least a first CBG belonging to the first transport block and a second CBG belonging to the second transport block, and a sequence number of the first CBG in the first transport block is the same as a sequence number of the second CBG in the second transport block; the method may further comprise: if the first CBG is decoded successfully, the terminal-side device may determine that the second CBG is merged without depending on the bit corresponding to the second CBG in the CBGFI field. In this possible implementation manner, for a first CBG and a second CBG with the same sequence number on different TBs, if the first CBG is decoded successfully, the terminal side device may perform a merge process on the second CBG. Because, in this case, the time-frequency resources used by the first CBG and the second CBG are the same or mostly the same, if the first CBG is successful in transmission, the reason for the unsuccessful transmission of the second CBG is transmission failure due to a channel problem, at this time, the network side device may not allocate a bit to indicate the second CBG, and the terminal side device may determine that the processing performed on the second CBG is merging processing by successfully decoding the first CBG, so as to reduce the use of bits in the CBGFI domain and avoid unnecessary resource overhead.

In another possible implementation, the DCI may further include a Redundancy Version (RV) field, where for any one of the at least one CBG, a CBG to be retransmitted; if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is merged, the terminal side device may receive the CBG to be retransmitted using the RV value indicated by the RV domain; if the corresponding bit of the CBG to be retransmitted in the CBGFI field indicates that the CBG to be retransmitted is damaged, the terminal side device may receive the CBG to be retransmitted with an RV value of 0. In this possible implementation, a specific manner is provided in which the terminal-side device receives the CBG to be retransmitted.

A second aspect of the embodiments of the present application provides a communication processing method, including:

in the communication process, the network side equipment can allocate the bit number for configuring the CBGFI domain in the DCI to the terminal side equipment through the first message; then, the network side device may send a second message to the terminal side device, where the second message is used for the terminal side device to determine at least one CBG corresponding to the bit of the bit number. In the technical solution of the present application, the network side device may configure the bit number of the CBGFI domain for the terminal side device, and the bit of the bit number corresponds to at least one CBG. When there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to being preempted by URLLC service at the same time, the terminal side device may perform corresponding processing on these CBGs through the bits corresponding to the CBGFI domain, so as to reduce or avoid emptying the buffer of the CBGs that fail to be transmitted due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

In another possible implementation manner, the method may further include: the network side device may send DCI to the terminal side device, where the DCI may be used for the terminal side device to determine at least one CBG to be retransmitted in the at least one CBG. In this possible implementation manner, the network side device informs the terminal side device of the CBG to be retransmitted in the at least one CBG through DCI, and then the terminal side device may perform corresponding processing on the CBG to be retransmitted according to the state of the bit.

In another possible implementation manner, the at least one CBG may include at least a first CBG belonging to the first transport block and a second CBG belonging to the second transport block, a sequence number of the first CBG in the first transport block is the same as a sequence number of the second CBG in the second transport block, and the first CBG and the second CBG correspond to the same bit in the CBGFI field. In this possible implementation, for the MIMO mode, and the terminal side device is configured to use a 2TB transmission mode, because the time-frequency resources used by the CBGs to be retransmitted with the sequence numbers on different TBs are the same or mostly the same, when none of the CBGs with the same sequence number on different TBs is successfully transmitted, and then the two CBGs are unsuccessfully transmitted, then the reasons for the unsuccessful transmission of the two CBGs are largely the same, and therefore, in this possible implementation, the first CBG and the second CBG with the same sequence number on different TBs are indicated by using the same bit in the CBGFI domain, so that the CBG indicated by the bit in the CBGFI domain has pertinence.

In another possible implementation, the DCI may further include a Redundancy Version (RV) field, where for any one of the at least one CBG, a CBG to be retransmitted; if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is merged, the network side device may send the CBG to be retransmitted through the RV value indicated by the RV domain; if the bit corresponding to the CBG to be retransmitted in the CBGFI field indicates that the CBG to be retransmitted is damaged, the network side device may retransmit the CBG to the terminal side device with RV value of 0. In this possible implementation manner, a specific manner for the network side device to send the CBG to be retransmitted is provided.

A third aspect of the embodiments of the present application provides a communication processing apparatus, where the communication processing apparatus has a function of implementing a behavior of the terminal-side device in the first aspect, and the function may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions.

A fourth aspect of the embodiments of the present application provides another communication processing apparatus, where the communication processing apparatus has a function of implementing a behavior of the network-side device in the second aspect, and the function may be implemented by hardware or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions.

A fifth aspect in an embodiment of the present application provides a communication processing apparatus, including: a processor, a memory, an input-output device, and a bus; the memory having stored therein computer instructions; when the processor executes the computer instructions in the memory, the memory stores the computer instructions; the processor, when executing the computer instructions in the memory, is adapted to implement any of the implementations of the first aspect.

In one possible implementation, the processor, the memory, and the input/output device are respectively connected to the bus.

A sixth aspect in an embodiment of the present application provides another communication processing apparatus, including: a processor, a memory, an input-output device, and a bus; the memory having stored therein computer instructions; when the processor executes the computer instructions in the memory, the memory stores the computer instructions; the processor, when executing the computer instructions in the memory, is adapted to implement an implementation as in any of the second aspects.

A seventh aspect of the embodiments of the present application provides a chip system, where the chip system includes a processor, configured to support a network-side device to implement the functions referred to in the foregoing first aspect, for example, to send or process data and/or information referred to in the foregoing method. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

An eighth aspect of the present embodiment provides a chip system, where the chip system includes a processor, and is configured to enable a network-side device to implement the functions referred to in the second aspect, for example, to transmit or process data and/or information referred to in the foregoing method. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

A ninth aspect of embodiments of the present application provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform an implementation as in any one of the first or second aspects.

A tenth aspect of embodiments of the present application provides a computer-readable storage medium, which is characterized by comprising instructions that, when executed on a computer, cause the computer to perform any one of the implementations of the first aspect or the second aspect.

According to the technical scheme, the embodiment of the application has the following advantages:

according to the technical scheme, the network side equipment allocates the bit number of the CBGFI domain to the terminal side equipment through the first message, namely the bit number contained in the CBGFI domain is flexible and configurable; then, the terminal-side device may receive a second message sent by the network-side device, and determine, through the second message, at least one CBG corresponding to a bit of the bit number. Therefore, according to the technical scheme of the application, the network side device can configure the bit number of the CBGFI domain for the terminal side device, and the bit of the bit number corresponds to at least one CBG. When there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to being preempted by URLLC service at the same time, the terminal side device may perform corresponding processing on these CBGs through the bits corresponding to the CBGFI domain, so as to reduce or avoid emptying the buffer of the CBGs that fail to be transmitted due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

Drawings

Fig. 1A is a schematic diagram of a communication system in an embodiment of the present application;

fig. 1B is a schematic diagram of a network architecture in an embodiment of the present application;

FIG. 1C is a diagram of another network architecture in an embodiment of the present application;

fig. 2 is a schematic diagram of an embodiment of a communication processing method in the embodiment of the present application;

fig. 3A is a schematic diagram of another embodiment of a communication processing method in the embodiment of the present application;

fig. 3B is a schematic view of a scenario of a communication processing method in the embodiment of the present application;

fig. 3C is a schematic view of another scenario of the communication processing method in the embodiment of the present application;

fig. 3D is a schematic view of another scenario of a communication processing method in the embodiment of the present application;

fig. 3E is another schematic view of a communication processing method in the embodiment of the present application;

fig. 3F is a schematic view of another scenario of the communication processing method in the embodiment of the present application;

fig. 3G is a schematic view of another scenario of the communication processing method in the embodiment of the present application;

fig. 3H is a schematic view of another scenario of the communication processing method in the embodiment of the present application;

fig. 3I is a schematic view of another scenario of a communication processing method in the embodiment of the present application;

fig. 3J is a schematic view of another scenario of a communication processing method in the embodiment of the present application;

fig. 4A is a schematic diagram of another embodiment of a communication processing method in the embodiment of the present application;

fig. 4B is a schematic view of another scenario of the communication processing method in the embodiment of the present application;

fig. 4C is a schematic view of another scenario of the communication processing method in the embodiment of the present application;

fig. 4D is a schematic view of another scenario of the communication processing method in the embodiment of the present application;

fig. 4E is another schematic view of a communication processing method in the embodiment of the present application;

fig. 4F is a schematic view of another scenario of the communication processing method in the embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication processing apparatus in an embodiment of the present application;

fig. 6 is another schematic structural diagram of a communication processing apparatus in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal side device in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network-side device in an embodiment of the present application;

fig. 9 is another schematic structural diagram of a network-side device in the embodiment of the present application.

Detailed Description

Please refer to fig. 1A, which is a schematic diagram of a communication system according to an embodiment of the present application. As shown in fig. 1A, the terminal-side device 130 accesses a wireless network to acquire a service of the internet through the wireless network or communicates with other terminal-side devices through the wireless network. The wireless network includes a Radio Access Network (RAN) 110 and a Core Network (CN) 120, where the RAN110 is configured to access a terminal side device 130 to the wireless network, and the CN120 is configured to manage the terminal side device and provide a gateway for communicating with an external network.

A terminal side device, also called a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice/data connectivity to a user, for example, a handheld device with a wireless connection function, or a vehicle-mounted device, etc. Currently, some examples of terminal side devices are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and the like. The terminal side device may also be a chip that implements the functions of the various devices described above.

The network side device is a device in a wireless network, for example, a Radio Access Network (RAN) node that accesses a terminal side device to the wireless network. Currently, some examples of RAN nodes are: a gbb, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) Access Point (AP), etc. In one network structure, a network-side device may include a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN node including a CU node and a DU node. The network side device may also be a chip system for implementing the functions of the RAN node.

"plurality" means two or more, and other terms are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Furthermore, for elements (elements) that appear in the singular form "a," an, "and" the, "they are not intended to mean" one or only one "unless the context clearly dictates otherwise, but rather" one or more than one. For example, "a device" means for one or more such devices. Still further, at least one (at least one of a).

Please refer to fig. 1B, which is a schematic diagram of a network architecture according to an embodiment of the present application. As shown in fig. 1B, the network architecture includes CN equipment and RAN nodes. The RAN node includes a baseband device and a radio frequency device, where the baseband device may be implemented by one node or by multiple nodes, and the radio frequency device may be implemented independently by being pulled away from the baseband device, may also be integrated in the baseband device, or may be partially pulled away and partially integrated in the baseband device. For example, in a Long Term Evolution (LTE) communication system, a RAN node (eNB) includes a baseband device and a radio frequency device, where the radio frequency device may be remotely located with respect to the baseband device, e.g., a Remote Radio Unit (RRU) is remotely located with respect to a BBU.

The communication between the RAN node and the terminal side device follows a certain protocol layer structure. For example, the control plane protocol layer structure may include functions of protocol layers such as a Radio Resource Control (RRC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a physical layer. The user plane protocol layer structure can comprise functions of protocol layers such as a PDCP layer, an RLC layer, an MAC layer, a physical layer and the like; in one implementation, a Service Data Adaptation Protocol (SDAP) layer may be further included above the PDCP layer.

The functions of these protocol layers may be implemented by one node, or may be implemented by a plurality of nodes; for example, in an evolved structure, a RAN node may include a Centralized Unit (CU) and a Distributed Unit (DU), and a plurality of DUs may be centrally controlled by one CU. As shown in fig. 1B, the CU and the DU may be divided according to protocol layers of the radio network, for example, functions of a PDCP layer and above protocol layers are provided in the CU, and functions of protocol layers below the PDCP layer, for example, functions of an RLC layer and a MAC layer, are provided in the DU.

This division of the protocol layers is only an example, and it is also possible to divide the protocol layers at other protocol layers, for example, at the RLC layer, and the functions of the RLC layer and the protocol layers above are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU; alternatively, the functions are divided into some protocol layers, for example, a part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are provided in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are provided in the DU. In addition, the processing time may be divided in other manners, for example, by time delay, a function that satisfies the time delay requirement is provided in the DU, and a function that does not necessarily satisfy the time delay requirement is provided in the CU.

In addition, the radio frequency device may be pulled away, not placed in the DU, or integrated in the DU, or partially pulled away and partially integrated in the DU, which is not limited herein.

With continued reference to fig. 1C, with respect to the architecture shown in fig. 1B, the Control Plane (CP) and the User Plane (UP) of the CU may be separated and implemented by being divided into different entities, namely a control plane CU entity (CU-CP entity) and a user plane CU entity (CU-UP entity).

In the above network architecture, the signaling generated by the CU may be transmitted to the terminal side device through the DU, or the signaling generated by the terminal side device may be transmitted to the CU through the DU. The DU may pass through the protocol layer encapsulation directly to the terminal side device or CU without parsing the signaling. In the following embodiments, if transmission of such signaling between the DU and the terminal-side device is involved, at this time, transmission or reception of the signaling by the DU includes such a scenario. For example, the signaling of the RRC or PDCP layer is finally processed into the signaling of the PHY layer to be transmitted to the terminal side device, or is converted from the received signaling of the PHY layer. Under this architecture, the signaling of the RRC or PDCP layer can also be considered to be sent by the DU, or by the DU and the radio frequency.

In the above embodiment, the CU is divided into the network devices on the RAN side, and in addition, the CU may also be divided into the network devices on the CN side, which is not limited herein.

The apparatus in the following embodiments of the present application may be located in a terminal side device or a network side device according to the implemented functions. When the above structure of CU-DU is adopted, the network device may be a CU node, or a DU node, or a RAN node including the CU node and the DU node.

Because the generation of the data packet of the URLLC service is bursty and random, the data packet may not be generated for a long time, and a plurality of data packets may be generated in a short time. In order to meet the ultra-short delay requirement of the URLLC service, the base station preempts the time-frequency resource for transmitting the eMBB service data to transmit the URLLC service data. At present, a base station issues downlink control information to a terminal side device, where the downlink control information is used to indicate a resource that the terminal side device is seized by a URLLC service, so as to reduce the influence of seizing on an eMBB terminal, and the downlink control information includes a CBGFI bit, which has only 1 bit and is used to indicate that the terminal side device completely clears or does not clear a decoding cache corresponding to a subsequently retransmitted CBG. However, for CBGs to be retransmitted in the eMBB transport block, some CBG transmission failures are caused by channel fading or channel interference, and some CBG transmission failures are caused by resources being preempted by the URLLC service. Since the CBGFI has only 1 bit, it can only be used to indicate that the terminal side device completely clears or does not completely clear the buffer corresponding to the retransmitted CBG, and in order to avoid interference of URLLC service data retained in the buffer, generally, this buffer is indicated to be completely cleared at this time. Therefore, when there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to resources being preempted by URLLC service, the terminal side device determines to empty the buffer corresponding to the CBG to be retransmitted according to the bits of the CBGFI domain, and then incremental redundancy combining gain is lost, resulting in a decrease in data transmission performance.

In view of this, embodiments of the present application provide a communication processing method and a communication processing apparatus, which are used to improve data transmission performance. In this embodiment of the application, the network side device may allocate, to the terminal side device, the number of bits included in the CBGFI field through the first message, that is, the number of bits included in the CBGFI field is flexibly configurable; then, the terminal-side device may receive a second message sent by the network-side device, and determine, through the second message, at least one CBG corresponding to a bit of the bit number. Therefore, according to the technical scheme of the application, the network side device can configure the bit number of the CBGFI domain for the terminal side device, and the bit of the bit number corresponds to at least one CBG. When there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to being preempted by URLLC service at the same time, the terminal side device may perform corresponding processing on these CBGs through the bits corresponding to the CBGFI domain, so as to reduce or avoid emptying the buffer of the CBGs that fail to be transmitted due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

Please refer to fig. 2, which is a schematic diagram of a communication processing method according to an embodiment of the present application. As shown in fig. 2, the method comprises the steps of:

201. the terminal side equipment receives a first message sent by the network side equipment.

In this embodiment, the network side device may configure the number of bits included in the CBGFI field for the terminal side device through the first message. And the terminal side equipment receives the first message, wherein the first message comprises the bit number contained in the CBGFI field.

It should be noted that the first message further includes a bit number of a CBG transmission information (CBGTI) field. The network side device may configure the bit number of the CBGTI field for the terminal side device according to at least one of the following factors:

a. the size of the transport block TB.

The larger the maximum TB supported, the more CBGs the TB includes, and the more bits of the CBGTI field occupy (bits of the CBGTI field correspond to the CBGs one-to-one).

b. A payload size of the DCI.

The size of the payload of the DCI affects the transmission performance, and under the same channel condition, if the time-frequency resource transmitted by the PDCCH is fixedly used, the smaller the payload of the DCI is, the better the reception performance of the terminal side device is.

And the network side equipment configures the bit number of the CBGFI domain for the terminal side equipment according to at least one of the following factors:

a. the retransmission efficiency.

The more the bit number of the CBGFI domain is, the less CBG corresponding to each bit in the bit number of the CBGFI domain is, so that the higher the retransmission efficiency is, and the larger the DCI overhead is; otherwise, the lower the retransmission efficiency, the smaller the DCI overhead. Therefore, the network side device can determine the bit number of the CBGFI domain according to the requirement of retransmission efficiency.

b. A payload size of the DCI.

In this embodiment, after receiving the first message, the terminal side device may determine the bit number included in the CBGFI domain and the bit number of the CBGTI domain, and determine the size of the payload of the DCI sent by the network side device in combination with the bit numbers of other domains; the manner of determining the bit number of other domains by the terminal side device may be in various manners, which is exemplified below:

1. the terminal side equipment can determine the bit number of other domains through the bit number of other domains preset and specified by a protocol; for example: in the DCI defined by the protocol, a modulation coding scheme for indicating each TB takes 5 bits, a new data indication takes 1 bit, a redundancy version RV for indicating data takes 2 bits, a hybrid automatic repeat request (HARQ) process number takes 4 bits, a Transmission Power Control (TPC) command for indicating a Physical Uplink Control Channel (PUCCH) takes 2 bits, and a PUCCH resource indication takes 3 bits.

2. The terminal side device may also determine the bit number of other domains by receiving a Radio Resource Control (RRC) message sent by the network side device; for example, in DCI defined by a protocol, the maximum number of TBs to be supported (for example, 8 bits for each TB), the number of Resource Blocks (RBs) to be used to indicate configuration frequency domains, and the frequency domain resource allocation manner are specified, so that a terminal side device determines the number of bits in a frequency domain resource allocation domain, and indicates whether cross-carrier scheduling is supported, so that the terminal side determines whether a carrier indication domain exists, and if so, the carrier indication domain is fixedly set to 3 bits.

202. And the terminal side equipment receives the second message sent by the network side equipment.

The terminal side device may receive a second message sent by the network side device, where the second message is used for the terminal side device to determine at least one CBG corresponding to the bits of the bit number of the CBGFI field.

203. And the terminal side equipment determines at least one CBG corresponding to the bits of the bit number of the CBGFI domain according to the second message.

After receiving the second message, the terminal side device may determine at least one CBG corresponding to bits of the bit number of the CBGFI field according to the second message. The specific determination method may be various, and is exemplified as follows:

the first method is as follows: the terminal side equipment determines the number of CBGs to be retransmitted of the target transmission block according to the second message; then, the terminal side equipment determines the number of CBGs to be retransmitted corresponding to the bits of the bit number of the CBGFI domain according to a first preset rule, the number of the CBGs to be retransmitted and the bit number of the CBGFI domain; then, the terminal side equipment determines at least one CBG to be retransmitted corresponding to the bit according to a second preset rule and the number of CBGs to be retransmitted corresponding to the bit; the first preset rule is used for the terminal side device to determine the number of CBGs to be retransmitted corresponding to each bit, the second preset rule is used for the terminal side device to determine at least one CBG to be retransmitted corresponding to each bit, and the first preset rule and the second preset rule may be sent by the network side device to the terminal side device, or may be preset in advance in the terminal side device, which is not limited herein. Next, please refer to the detailed description of steps 303 to 304 and 307 to 308 in fig. 3A for the specific determination process of the first mode.

The second method comprises the following steps: the terminal side equipment determines the total number of CBGs included in the target transmission block according to the second message; then the terminal side equipment can determine the number of the CBGs corresponding to the bits of the bit number of the CBGFI domain according to a third preset rule, the total number of the CBGs and the bit number of the CBGFI domain; and then, the terminal side equipment determines at least one CBG corresponding to the bit of the bit number of the CBGFI domain according to a fourth preset rule and the number of the CBGs corresponding to the bit. The third preset rule is used for the terminal side device to determine the number of CBGs corresponding to each bit, the fourth preset rule is used for the terminal side device to determine the CBGs corresponding to each bit, and the third preset rule and the fourth preset rule may be sent by the network side device to the terminal side device or preset in advance in the terminal side device, and are not limited herein. Next, please refer to the detailed description of steps 403 to 404 and 407 to 408 in fig. 4A for the specific determination process of the second method.

In the embodiment of the application, the network side device may allocate the number of bits included in the CBGFI field to the terminal side device through the first message, that is, the number of bits included in the CBGFI field is flexibly configurable; then, the terminal-side device may receive a second message sent by the network-side device, and determine, through the second message, at least one CBG corresponding to a bit of the bit number. Therefore, according to the technical scheme of the application, the network side device can configure the bit number of the CBGFI domain for the terminal side device, and the bit of the bit number corresponds to at least one CBG. When there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to being preempted by URLLC service at the same time, the terminal side device may perform corresponding processing on these CBGs through the bits corresponding to the CBGFI domain, so as to reduce or avoid emptying the buffer of the CBGs that fail to be transmitted due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

The various ways exemplified in step 203 above are described below with reference to specific examples:

referring to fig. 3A, which is a schematic diagram of a communication processing method according to an embodiment of the present disclosure, in fig. 3A, a terminal side device determines at least one CBG to be retransmitted corresponding to a bit of a bit number of a CBGFI field by the above-mentioned method; wherein the first message is an RRC message and the second message is DCI. As shown in fig. 3A, the method includes:

301. and the terminal side equipment receives the RRC message sent by the network side equipment.

The network side device may configure the bit number of the CBGFI field for the terminal side device, and then notify the terminal side device through an RRC message, where the RRC message carries the bit number included in the CBGFI field.

In this embodiment, the RRC message may further include a bit number of the CBGTI field. Next, for how the network side device configures the bit number of the CBGFI domain and the bit number of the CBGTI domain for the terminal side device, reference may be made to the related description of step 201 in fig. 2, and details are not described here again.

302. And the terminal side equipment determines the bit number of the CBGFI domain according to the RRC message.

The terminal side device may determine the bit number of the CBGFI field and the bit number of the CBGTI field according to the RRC message, and please refer to step 201 in fig. 2 for the process of determining the size of the payload of the DCI sent by the network side device by the terminal side device in combination with the bit numbers of other fields, which is not described herein again.

303. And the network side equipment determines the number of the CBGs to be retransmitted corresponding to each bit according to the first preset rule, the number of the CBGs to be retransmitted of the target transmission block and the bit number of the CBGFI domain.

The terminal side equipment receives the CBG of the target TB sent by the network side equipment and decodes the CBG; then, the terminal side equipment sends a feedback message to the network side equipment according to the decoding condition. If the terminal side device successfully decodes the CBG, the terminal side device feeds back An (ACK) message to the network side device, and if the terminal side device fails to decode the CBG, the terminal side device feeds back a NACK message to the network side device, and indicates that the CBG of the target TB is not successfully received in the corresponding process through the feedback message. The process may be that the network side device carries a process number of the process in DCI, and the terminal side device sends the feedback message at an uplink control resource position indicated by the network side device, so that the network side device receives the feedback message sent by the terminal side device at the corresponding uplink resource position, and then determines, according to the feedback message, a reception condition of the terminal side device for a target TB transmitted by the process, thereby determining which CBGs in the target TB are CBGs to be retransmitted and the number of CBGs to be retransmitted.

And in step 301, the process that the network side device configures the bit number of the CBGFI domain for the terminal side device through the first message is also described, so that the network side device can determine the bit number of the CBGFI domain. The network side device may determine, according to a first preset rule, the number of CBGs to be retransmitted of the target TB and the number of bits in the CBGFI domain, the number of CBGs to be retransmitted corresponding to each bit in the number of bits in the CBGFI domain, where the first preset rule is used for the terminal side device to determine the number of CBGs to be retransmitted corresponding to each bit, and the first preset rule may be sent by the network side device to the terminal side device, or may be preset in advance in the terminal side device, and is not limited herein. The total number of CBGs included in the target TB is N, the number of CBGs to be retransmitted of the target TB is N1, the number of CBGFI bits is M, N is greater than or equal to 2, and M is greater than 1. The first predetermined rule is various, and is described below by way of example:

a preset rule A:

1. when N1 is greater than M, the network side device may determine that the number of CBGs to be retransmitted corresponding to each bit of M1 bits in the number of bits in the CBGFI field is ceil (N1/M), and determine that the number of CBGs to be retransmitted corresponding to each bit of M2 bits in the number of bits in the CBGFI field is floor (N1/M), where M1 ═ N1-floor (N1/M) × M, M2 ═ M-N1+ floor (N1/M) × M, ceil (x) refers to rounding up x, and floor (x) refers to rounding down x. For example, as shown in fig. 3B, the target TB includes 8 CBGs, the CBGs to be retransmitted include CBGs 1, CBG3, CBG4, CBG6, and CBG7, the bit number of the CBGFI field is 3, which is bit 0, bit 1, and bit 2, the network side device may determine that bit 0 corresponds to one CBG to be retransmitted, bit 1 corresponds to 2 CBGs to be retransmitted, and bit 2 corresponds to 2 CBGs to be retransmitted; of course, bit 0 may correspond to two CBGs to be retransmitted, bit 1 corresponds to one CBG to be retransmitted, bit 2 corresponds to 2 CBGs to be retransmitted, and the like, as shown in fig. 3C, which is not limited herein.

2. When N1 is less than or equal to M, the network side device may determine that the number of CBGs to be retransmitted corresponding to each bit in the number of bits in the CBGFI domain is 1. It should be noted that when N1 is smaller than M, it is determined that each CBG to be retransmitted corresponds to a bit in one CBGFI domain by means of average allocation, the remaining M-N1 bits of the CBGFI domain may not be used, and the bits may be set to preset values or used for indicating other information, and the like, which is not limited herein. For example, as shown in fig. 3D, the target TB includes 6 CBGs, the CBGs to be retransmitted include CBGs 1 and CBGs 3, the bit number of the CBGFI field is 2, which is bit 0 and bit 1, respectively, then the network side device may determine, by means of an average allocation manner, that bit 0 corresponds to one CBG to be retransmitted, and bit 1 corresponds to one CBG to be retransmitted. For another example, as shown in fig. 3E, the target TB includes 6 CBGs, the CBG to be retransmitted includes CBG1, the bit number of the CBGFI domain is 2, and the bit number is bit 0 and bit 1, respectively, it is known that the number of the CBGs to be retransmitted is smaller than the bit number of the CBGFI domain, the network side device may determine, by means of an average allocation manner, that bit 0 corresponds to CBG1, and bit 1 may be set to a preset value.

A preset rule B:

1. when N1 is greater than M, the network side device may determine the number of CBGs to be retransmitted corresponding to each bit according to the number of bits in the CBGFI domain, the number of CBGs to be retransmitted, and a preset permutation and combination. Table 1 illustrates an example, where table 1 only shows that when the number of bits in the CBGFI field is 3 and the total number of CBGs included in the target TB is 8, a combination of all possible bits corresponding to the number of CBGs to be retransmitted is determined according to the number of CBGs to be retransmitted, and the same applies to other number relationships. Secondly, for all possible combinations in table 1, the network side device uses a preset ordering combination, which may be specified by a protocol or determined by the network side device, to combine the number of CBGs to be retransmitted corresponding to each bit. If the number of CBGs to be retransmitted is determined by the network side device, the network side device may send indication information to the terminal side device, where the indication information is used to indicate the terminal side device to determine the number of CBGs to be retransmitted corresponding to each bit by using the preset combination. For example, when the number of bits for the CBGFI field in table 1 is 3 and the number of CBGs to be retransmitted is 5, the preset ordering combination may be that two bits correspond to one CBG to be retransmitted and the other bit corresponds to three CBGs to be retransmitted; or one bit corresponds to one CBG to be retransmitted, and the other two bits correspond to two CBGs to be retransmitted. The network side device may determine to use one of the two ordering combinations, or may use an ordering combination specified by a protocol, which is not limited herein. If the network side device determines to use one of the two ordering combinations, the network side device may send indication information to the terminal side device, so as to instruct the terminal side device to use the corresponding ordering combination to determine the number of CBGs to be retransmitted corresponding to each bit.

TABLE 1

2. When N1 is less than or equal to M, the network side device may determine the number of CBGs to be retransmitted corresponding to each bit according to the number of bits in the CBGFI domain, the number of CBGs to be retransmitted, and a preset permutation and combination. Table 2 illustrates that, when the bit number of the CBGFI field is 3 and the total number of CBGs included in the target TB is 8, table 2 shows all possible combinations of the number of CBGs to be retransmitted corresponding to the bit determined according to the number of CBGs to be retransmitted. The same applies for other quantitative relationships. Secondly, for all possible combinations in table 1, for example, when the number of bits in the CBGFI field in table 2 is 3 and the number of CBGs to be retransmitted is 3, the preset ordering combination may correspond to 1 CBG to be retransmitted for each bit.

TABLE 2

It should be noted that the network side device may select to use the preset rule a or the preset rule B, and the application is not limited in this application. Secondly, the network side device may also determine to adopt a preset rule a or a preset rule B according to the protocol specification. When the network side device selects to adopt the corresponding preset rule, the network side device may send indication information to the terminal side device, so as to indicate the preset rule corresponding to the terminal side device.

Some sort of combinations in table 1 above are described below by way of fig. 3F. As shown in fig. 3F, the CBGs to be retransmitted include CBG1, CBG3, CBG4, CBG6, and CBG7, and there are 5 CBGs to be retransmitted, and the bit number of the CBGFI field is 3, which are bit 0, bit 1, and bit 2; when the number of CBGs to be retransmitted is 5 and the number of bits in the CBGFI field is 3, it may be determined that bit 0 corresponds to one CBG to be retransmitted, bit 1 corresponds to one CBG to be retransmitted, and bit 2 corresponds to three CBGs to be retransmitted.

304. And the network side equipment determines at least one CBG to be retransmitted corresponding to the bit of the bit number of the CBGFI domain according to the number of the CBGs to be retransmitted corresponding to each bit and a second preset rule.

And the network side equipment determines at least one CBG to be retransmitted corresponding to each bit according to the second preset rule and the number of the CBGs to be retransmitted corresponding to each bit. Wherein, the second preset rule has a plurality of kinds. In the following, an example is given based on the network side device determining the number of CBGs to be retransmitted corresponding to each bit by using the preset rule a, and the second preset rule is also applicable to the network side device determining the number of CBGs to be retransmitted corresponding to each bit by using the preset rule B. The total number of CBGs included in the target TB is N, the number of CBGs to be retransmitted of the target TB is N1, the number of CBGFI bits is M, N is greater than or equal to 2, and M is greater than 1:

presetting a rule C: and grouping according to the sequence number of the CBG to be retransmitted on the target TB.

First, the sequence number of the CBG on the target TB is described. As shown in FIG. 3B, the target TB includes 8 CBGs, CBG1 through CBG8, and the sequence number of the CBG can be understood as the ordering position of the CBG on the target TB. For example, CBG1 is the first CBG on the target TB, CBG2 is the second CBG on the target TB, and the other CBGs are not listed here; that is, CBG1 has sequence number 1 and CBG2 has sequence number 2.

The following shows, for example, a process in which the network side device performs grouping according to the sequence number size of the CBG to be retransmitted on the target TB: as shown in fig. 3B, it is determined by the network side device described above through a preset rule a that bit 0 corresponds to one CBG to be retransmitted, bit 1 corresponds to two CBGs to be retransmitted, and bit 2 corresponds to two CBGs to be retransmitted; then, the network side device knows the sequence number of the CBG on the target TB, and the CBG1 is the first CBG on the target TB, that is, the sequence number is 1; the CBG3 and the CBG4 are respectively the third CBG and the fourth CBG on the target TB, namely the CBG3 and the CBG4 have the sequence numbers of 3 and 4 respectively; CBG6 and CBG7 are the sixth CBG and the seventh CBG, respectively, on the target TB, i.e. CBG6 and CBG7 have sequence numbers of 6 and 7, respectively; the network side device may determine that bit 0 corresponds to CBG1, bit 2 corresponds to CBG3 and CBG4, and bit 2 corresponds to CBG6 and CBG 7.

It should be noted that, for the MIMO mode, when the terminal side device can be configured to adopt the 2TB transmission mode, the grouping mode according to the preset rule C is also the same, and the CBGs to be retransmitted on TB1 may be grouped according to the preset rule C, and then the CBGs to be retransmitted on TB2 may be grouped according to the preset rule C.

Presetting a rule D: and grouping the CBGs to be retransmitted of the target TB according to a preset sequencing combination.

The following is illustrated by way of example: if the number of bits in the CBGFI field is 3, and the total number of CBGs included in the target TB includes 8, where the number of CBGs to be retransmitted is 5, the network side device may determine, according to the preset ordering combination, the CBG to be retransmitted corresponding to each bit. Table 3 shows that the number of bits in the CBGFI field is 3, and the total number of CBGs included in the target TB includes 8, where when the number of CBGs to be retransmitted is 5, some possible examples of the preset ordering combination are specifically shown in table 3, for example, the content of the ordering combination corresponding to number 1 of the ordering combination is: bit 0 for CBG1, bit 1 for CBG6 and CBG7, and bit 2 for CBG3 and CBG 4; similar for other sequencing combinations, see table 3 for details. It should be noted that the same applies to other quantity relationships, and this is only to illustrate a way that the network side device performs grouping according to a preset ordering combination.

TABLE 3

The preset rule D is described below with one sort combination, as shown in fig. 3G, the network side device determines that bit 0 corresponds to CBG1, bit 1 corresponds to the second CBG of the CBGs to be retransmitted and the fourth CBG of the CBGs to be retransmitted, that is, bit 1 corresponds to CBG3 and CBG6, and bit 2 corresponds to the third CBG and the fifth CBG of the CBGs to be retransmitted, that is, bit 2 corresponds to CBG4 and CBG 8.

A preset rule E: for the MIMO scene, the CBGs to be retransmitted with the same sequence number on different TBs use the same bit indication:

in the MIMO mode, the network side device may transmit data by using a precoding technique according to channel information fed back by the terminal side device, where the channel information may include a rank of a channel matrix between the terminal side device and the network side device, a precoding matrix indicator (precoding matrix indicator), a Channel Quality Indicator (CQI), and the like. In the MIMO mode, the network side device may map data to at least one layer and then send the layer to the terminal side device. The layer in the MIMO mode refers to an independent channel between the terminal side device and the network side device, and may carry an effective (capable of being resolved) data stream corresponding to a maximum independent linear vector group of the channel matrix. It can be obtained from the matrix analysis theory that when the number of the transmitting antenna ports is less than that of the receiving antenna ports, the number of layers is less than or equal to that of the transmitting antenna ports; when the number of the transmitting antenna ports is larger than or equal to the number of the receiving antenna ports, the number of the layers is smaller than or equal to the number of the receiving antenna ports. In MIMO mode, an antenna port is a logical concept, defined as a channel over which a signal is transmitted can be derived from a channel over which another signal is transmitted. The time-frequency resources on the same antenna port can be mapped to one physical antenna, and can also be mapped to a plurality of physical antennas. By using the MIMO technology, the data transmission rate on the same time-frequency resource can be improved, and the network capacity is enlarged.

When the terminal side device can be configured to adopt 2TB transmission, the number of configurable CBGs of each TB is 2 or 4, and the number of CBGs included in each TB is the same, where the total number of CBGs of TB1 and TB2 is N, the first N/2 CBGs may correspond to the CBG of TB1, and the last N/2 CBGs correspond to the CBG of TB 2. The CBGs on the TBs can be distinguished by numbers, for example, CBG (i, j), where i is an index to the TB, and values can be 0 and 1, and j is an index to the CBG on each TB, and values are 0 to N/2-1; that is, the sequence number of CBG (0,0) on TB1 is the same as the sequence number of CBG (1,0) on TB 2. And the network side equipment side can indicate the CBGs to be retransmitted with the same sequence numbers on different TBs by using the same bit in the CBGFI domain.

For CBGs with the same sequence number and different transmission conditions on TB1 and TB2, for the CBGs to be retransmitted contained in the part of CBGs, the network side device may determine corresponding bits for the CBGs to be retransmitted, or the network side device may not allocate corresponding bits for the part of CBGs to be retransmitted, that is, there is no corresponding bit indication, which is not limited in the present application.

It should be noted that, the network side device indicates that the CBGs to be retransmitted with the same sequence number on different TBs use the same bit in the CBGFI domain, because the time-frequency resources used by the CBGs to be retransmitted with the same sequence number on different TBs are the same or mostly the same, when the CBGs with the same sequence number on different TBs are not successfully transmitted, the reason why the two CBGs are not successfully transmitted is largely the same. Because under the same time frequency resource, if the service occupies the resource, the time frequency resources of the two CBGs can be occupied at the same time. Therefore, the two CBGs are not successfully transmitted due to the reason that the service occupies the resource at the same time, the network side device may indicate through the same bit, so that the terminal side device performs the operation of the flush processing on the two CBGs; if the channel state of a certain layer or several layers of the time-frequency resource is poor or the channel interference is large, then the two CBGs using the time-frequency resource may be wrong only by one or both, and the network side device may indicate by the same bit, so that the terminal side device performs the operation of combining one or two wrong CBGs.

For CBGs with the same sequence number and different transmission situations in TB1 and TB2, a scheme that the network side device does not allocate corresponding bits to the CBG to be retransmitted included in the CBG to be retransmitted will be described. For example, if the CBG (0,0) on TB1 is a CBG to be retransmitted, the CBG (0,1) on TB2 is a CBG to be retransmitted, the CBG (1,0) on TB2 is a CBG to be successfully transmitted, and the CBG (0,1) on TB1 is a CBG to be successfully transmitted, the network-side device may not allocate corresponding bits to the CBG (0,0) on TB1 and the CBG (0,1) on TB2 to indicate the two CBGs, and the terminal-side device may determine that the two CBGs are transmission failures due to channel problems such as channel fading or channel interference in this case. Because the time-frequency resources used by CBG (0,0) on TB1 and CBG (1,0) on TB2 are the same, if transmission of CBG (0,0) on TB1 fails due to traffic preemption, CBG (1,0) on TB2 must also not be successfully transmitted; therefore, for two CBGs with the same sequence number and different transmission conditions on different TBs, the network side device may not allocate corresponding bits to indicate the CBG with the transmission failure, and in this case, the terminal side device may determine that the CBG with the transmission failure is caused by channel problems such as channel fading or channel interference, and then the terminal side device may perform the operation of combining the CBGs with the transmission failure.

The preset rule E is explained below by a specific example:

as shown in fig. 3H, TB1 includes 4 CBGs, CBG (0,0), CBG (0,1), CBG (0,2) and CBG (0,3), TB2 includes 4 CBGs, CBG (1,0), CBG (1,1), CBG (1,2) and CBG (1,3), wherein the CBG to be retransmitted includes CBG (0,1), CBG (0,2), CBG (0,3), CBG (1,2) and CBG (1,3), and the number of bits in the gfi field is 3, bit 0, bit 1 and bit 2. Based on the network side device, it is determined that bit 0 corresponds to one CBG to be retransmitted, bit 1 corresponds to two CBGs to be retransmitted, and bit 2 corresponds to two CBGs to be retransmitted, so that the network side device can indicate the CBGs to be retransmitted with the same sequence number on different TBs in the CBGs to be retransmitted by using corresponding bits, as shown in fig. 3H, bit 0 corresponds to CBG (0, 1); since CBG (0,2) is the third CBG on TB and CBG (1,2) is the third CBG on TB2, it can be known that the sequence number of CBG (0,2) on TB1 is the same as the sequence number of CBG (1,2) on TB2, and then the network side device can determine that bit 1 corresponds to CBG (0,2) and CBG (1, 2); similarly, CBG (0,3) is the fourth CBG on TB1, and CBG (1,3) is the fourth CBG on TB2, so that it can be known that the sequence number of CBG (0,3) on TB1 is the same as the sequence number of CBG (1,3) on TB2, and the network side device can determine that bit 2 corresponds to CBG (0,3) and CBG (1, 3).

It should be noted that, based on the example shown in fig. 3H, bit 1 may correspond to CBG (0,3) and CBG (1,3), and bit 2 may correspond to CBG (0,2) and CBG (1,2), and even if the bit indicates different orders, the example is used here, and the same applies to the bit numbers of CBG to be retransmitted and CBGFI fields with other number relationships.

As shown in fig. 3I, by way of further example, TB1 includes 4 CBGs, CBG (0,0), CBG (0,1), CBG (0,2) and CBG (0,3), TB2 includes 4 CBGs, CBG (1,0), CBG (1,1), CBG (1,2) and CBG (1,3), wherein the CBG to be retransmitted includes CBG (0,1), CBG (0,2), CBG (0,3), CBG (1,2) and CBG (1,3), the bit number of the CBGFI field is 2, and bit 0 and bit 1, respectively, so that the network side device can determine that bit 1 corresponds to CBG (0,2), CBG (1,2) and CBG (0,1), and bit 0 corresponds to CBG (0,3) and CBG (1, 3). Based on the example shown in fig. 3I, the network side device first divides CBGs to be retransmitted with the same sequence number into a group, determines the number of groups to be retransmitted (in this example, 3), where the number of groups to be retransmitted corresponds to the number M of CBGs to be retransmitted in the non-MIMO scenario, and then may determine the relationship between CBGFI bits and groups to be retransmitted through the first preset rule and the second preset rule.

As shown in fig. 3J, TB1 includes 4 CBGs, CBG (0,0), CBG (0,1), CBG (0,2) and CBG (0,3), TB2 includes 4 CBGs, CBG (1,0), CBG (1,1), CBG (1,2) and CBG (1,3), wherein the CBG to be retransmitted includes CBG (0,1), CBG (0,2) and CBG (1,2), the network side device may determine that bit 0 corresponds to CBG (0,2) and CBG (1,2), and no bit is allocated for CBG (0,1) to indicate, and the value of bit 1 may be set to a preset value or an indication for other messages, etc.

305. The network side device determines the state of the bits of the number of bits of the CBGFI domain.

After the network side device determines the CBG to be retransmitted corresponding to each bit, the network side device may determine the state of each bit. Specifically, the network side device may determine the state of each bit according to the unsuccessful transmission reason of the to-be-retransmitted CBG corresponding to each bit, for example, when the to-be-retransmitted CBG fails to be transmitted due to channel fading or channel interference, the network side device may instruct the terminal side device to perform the operation of combining the to-be-retransmitted CBG through the bit; when the CBG to be retransmitted fails to be transmitted due to the resource preemption by the service, the network side device may instruct the terminal side device to perform a clearing operation on the CBG to be retransmitted through the bit. The description is made by taking fig. 3B as an example: bit 0 corresponds to CBG1, bit 1 corresponds to CBG3 and CBG4, and bit 2 corresponds to CBG6 and CBG7, so that for the value of bit 0, the network side device may determine the value of bit 0 according to the unsuccessful transmission reason of CBG 1; for example, if the CBG1 fails to transmit due to channel fading or channel interference, the network side device may set the value of bit 0 to 0, which is used to instruct the terminal side device to perform merging processing on the CBG 1; if the CBG1 is caused by a service preempting a resource and results in a transmission failure, the network side device may set a bit 0 to 1, so as to instruct the terminal side device to flush the buffer of the CBG 1. For the value of bit 1, the network side device may determine the value of bit 1 according to the unsuccessful transmission reasons of CBG3 and CBG 4. For example, if both CBG3 and CBG4 fail to transmit due to channel fading or channel interference, the network side device may set the value of bit 1 to 0; if at least one CBG of the CBGs 3 and 4 is a transmission failure due to resource preemption by a service, the network side device may set the value of bit 1 to 1. The value of bit 2 is similar to that of bit 1, and is not described herein again.

306. And the terminal side equipment receives the downlink control information DCI sent by the network side equipment.

After the terminal side device determines the payload size of the DCI, the terminal side device may receive the DCI sent by the network side device; the DCI is used for indicating the number of CBGs to be retransmitted of the target transport block and the state of bits of the bit number of the CBGFI field. Specifically, the bit state of the bit number of the CBGTI field is carried in the DCI, and the terminal side device determines the CBGs to be retransmitted on the target TB and the number of the CBGs to be retransmitted according to the bit state of the bit number of the CBGTI field.

307. And the terminal side equipment determines the number of CBGs to be retransmitted of the target transmission block according to the DCI.

The terminal side device may determine the CBGs to be retransmitted of the target TB according to the state of the bits of the CBGTI field in the DCI, that is, may determine the number of CBGs to be retransmitted on the target TB; the bit number in the CBGTI domain is the same as the total number of CBGs included in the target TB, each bit of the bit number in the CBGTI domain corresponds to one CBG, and whether the CBG corresponding to the bit in the CBGTI domain is the CBG to be retransmitted or not can be determined by the value of the bit in the CBGTI domain.

For example, when the bit value of the CBGTI domain is 1, the terminal side device may determine that the CBG corresponding to the bit of the CBGTI domain is the CBG to be retransmitted, and when the bit value of the CBGTI domain is 0, the terminal side device may not transmit the CBG corresponding to the bit of the CBGTI domain this time.

308. And the terminal side equipment determines the number of the CBGs to be retransmitted corresponding to the bits of the bit number of the CBGFI domain according to the first preset rule, the number of the CBGs to be retransmitted and the bit number of the CBGFI domain.

The terminal side device may determine the number of CBGs to be retransmitted corresponding to each bit according to the first preset rule, the number of CBGs to be retransmitted of the target TB, and the number of bits in the CBGFI domain. The specific determination method of the terminal side device may refer to a process in which the network side device determines the number of CBGs to be retransmitted corresponding to each bit in step 303, that is, the determination method of the terminal side device is consistent with the determination method of the network side device, and the first preset rule may be the preset rule a or the preset rule B in step 303, which is specifically referred to the detailed description of step 303, and is not described here again.

309. And the terminal side equipment determines at least one CBG to be retransmitted corresponding to the bit of the bit number of the CBGFI domain according to a second preset rule and the number of the CBGs to be retransmitted corresponding to each bit.

The terminal side device may determine at least one CBG to be retransmitted corresponding to each bit according to a second preset rule and the number of CBGs to be retransmitted corresponding to each bit, where a specific determination process of the terminal side device is similar to a determination process of the network side device, and the second preset rule may be the preset rule C, the preset rule D, or the preset rule E described in step 304, for which, reference is specifically made to the detailed description of step 304, which is not described herein again.

310. And the terminal side equipment performs corresponding processing on the at least one CBG to be retransmitted according to the state of the bit number.

After the terminal side device determines at least one CBG to be retransmitted corresponding to the bit of the bit number of the CBGFI domain, it may perform corresponding processing on the at least one CBG to be retransmitted according to the state of each bit. For example, as shown in fig. 3B, when the value of bit 0 is 0, the terminal side device performs an operation of merging on the CBG1, that is, merging the CBG1 received by the subsequent terminal side device with the CBG1 received before, so as to increase the gain; when the value of bit 1 is 1, the terminal-side device performs flushing on the CBGs 3 and 4, that is, the terminal-side device flushes the buffers of the CBGs 3 and 4 received by the terminal-side device. The operations performed for the CBG6 and CBG7 corresponding to bit 2 are similar and will not be described again here.

It should be noted that, in the preset rule E described in step 304, for CBGs with the same sequence number and different transmission situations on different TBs in the MIMO mode, the processing operation performed by the terminal side device on the CBG to be retransmitted in the CBG is combining processing, and at this time, the terminal side device performs combining processing on the CBG to be retransmitted in the CBG and does not depend on the state of the bit corresponding to the CBG to be retransmitted in the CBG in the CBGFI domain. In this case, if the network side device allocates a corresponding bit to the CBG to be retransmitted, the terminal side device may ignore the bit corresponding to the CBG to be retransmitted and directly perform merging processing on the CBG to be retransmitted; if the network side device does not allocate the corresponding bit to the CBG to be retransmitted, the terminal side device does not receive the bit corresponding to the CBG to be retransmitted, and the terminal side device directly performs merging processing on the CBG to be retransmitted. The following are illustrated by way of example:

as shown in fig. 3J, TB1 includes 4 CBGs, CBG (0,0), CBG (0,1), CBG (0,2), and CBG (0,3), respectively, and TB2 includes 4 CBGs, CBG (1,0), CBG (1,1), CBG (1,2), and CBG (1,3), respectively. The CBG (1,1) on TB2 is a CBG that is successfully transmitted, that is, the terminal side device successfully decodes the CBG (1,1) on TB1, and at this time, if the CBG (0,1) on TB1 is not successfully transmitted, the terminal side device may perform merging processing on the CBG (0, 1).

In this embodiment, the DCI further includes an RV field, and if bits of the CBGFI field indicate that the terminal side device performs combining processing on the at least one CBG to be retransmitted, the network side device may send the at least one CBG to be retransmitted to the terminal side device through an RV value indicated by the RV field in the DCI. The terminal side device may determine, through the DCI, the RV value indicated by the RV field, and then receive, through the RV value, the at least one CBG to be retransmitted, which is sent by the network side device. If the bits of the CBGFI field indicate that the terminal-side device performs the flush processing on the at least one CBG to be retransmitted, or indicate that the at least one CBG to be retransmitted is damaged, the network-side device may send the at least one CBG to be retransmitted to the terminal-side device through RV0 or an RV transmitted last time by the CBG, and the terminal-side device may receive the at least one CBG to be retransmitted sent by the network-side device through RV0 or an RV transmitted last time by the CBG.

In the embodiment of the application, the network side device may allocate the number of bits included in the CBGFI field to the terminal side device through an RRC message, that is, the number of bits included in the CBGFI field is flexibly configurable; then, the terminal-side device may receive the DCI sent by the network-side device, and determine, through the DCI, at least one CBG to be retransmitted corresponding to the bits of the bit number. Therefore, according to the technical scheme of the application, the network side device can configure the bit number of the CBGFI domain for the terminal side device, and the bit of the bit number corresponds to at least one CBG to be retransmitted. When there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to being preempted by URLLC service at the same time, the terminal side device may perform corresponding processing on these CBGs through the bits corresponding to the CBGFI domain, so as to reduce or avoid emptying the buffer of the CBGs that fail to be transmitted due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

Referring to fig. 4A, which is a schematic diagram of a communication processing method according to an embodiment of the present application, in fig. 4A, a terminal side device determines at least one CBG corresponding to bits of a CBGFI field by the above-mentioned method; the first message is a first RRC message, and the second message is a second RRC message. As shown in fig. 4A, the method includes:

401. the terminal side equipment receives a first RRC message sent by the network side equipment.

Step 401 is similar to step 201 in fig. 2, and please refer to step 201 in fig. 2, which is not described herein again.

402. And the terminal side equipment determines the bit number of the CBGFI domain according to the first RRC message.

Step 402 is similar to step 302 in fig. 3A, and please refer to the description in step 302 in fig. 3A, which is not repeated herein.

403. And the network side equipment determines the number of the CBGs corresponding to each bit according to a third preset rule, the total number of the CBGs included in the target TB and the number of bits in the CBGFI domain.

First, the network side device may determine, according to a third preset rule, the total number of CBGs included in the target TB, and the number of bits in the CBGFI domain, the number of CBGs corresponding to the bits of the number of bits in the CBGFI domain. The third preset rule is used for the terminal side device to determine the number of CBGs corresponding to each bit, and the third preset rule may be multiple, where, by way of example, the total number of CBGs included in the target TB is N, the number of CBGFI bits is M, N is greater than or equal to 2, and M is greater than 1:

a preset rule F:

the total number of CBGs included in the target TB is N, the number of CBGFI bits is M, and then the bits of each CBGFI domain correspond to N/M CBGs, wherein M is smaller than N, and N/M is an integer. For example, as shown in fig. 4B, the target TB includes 8 CBGs, the number of bits of the CBGFI field is two, and the number of bits is bit 0 and bit 1, respectively, then the network side device may determine that bit 0 corresponds to four CBGs, and bit 1 corresponds to four CBGs.

A preset rule G:

the network side device may determine the number of CBGs corresponding to each bit through a preset permutation and combination according to the number of bits in the CBGFI domain and the total number of CBGs included in the target TB. Table 4 illustrates an example, where table 4 shows a combination of the number of CBGs corresponding to each bit when the number of bits in the CBGFI field is two and the total number of CBGs included in the target TB is 8. It should be noted that the same applies to other quantity relationships, which are not listed here, but only the preset rule G is described in table 4:

TABLE 4

Next, a certain sort combination in table 4 is described with reference to fig. 4C, and as shown in fig. 4C, when the total number of CBGs included in the target TB is 8 and the number of bits in the CBGFI field is 2, the network side device may determine that bit 0 corresponds to three CBGs and bit 1 corresponds to five CBGs.

404. And the network side equipment determines at least one CBG corresponding to the bit of the bit number of the CBGFI domain according to a fourth preset rule and the number of the CBGs corresponding to each bit.

And the network side equipment determines at least one CBG corresponding to each bit according to the fourth preset rule and the number of the CBGs corresponding to each bit. The fourth preset rule is used for the terminal side device to determine the CBGs corresponding to each bit, and the fourth preset rule is multiple, and is exemplified based on the network side device determining the number of CBGs corresponding to each bit through the preset rule F, but the second preset rule is also applicable to the determination of the number of CBGs to be retransmitted corresponding to each bit based on the preset rule G, and is not listed one by one here. The total number of CBG bits included in the target TB is N, the number of CBGFI bits is M, N is greater than or equal to 2, M is greater than 1, and N/M is a positive integer.

A preset rule H: grouping is done according to the sequence number size of CBG on the target TB.

By way of example, the preset rule H is shown in fig. 4B, where the target TB includes 8 CBGs, where bit 0 corresponds to the first four CBGs on the target TB and bit 1 corresponds to the last four CBGs on the target TB.

It should be noted that, for the MIMO mode, when the terminal side device can be configured to adopt the 2TB transmission mode, the grouping mode according to the preset rule H may also be the same, and after the CBG on TB1 is grouped according to the preset rule H, the CBG on TB2 is grouped according to the preset rule H.

Presetting a rule I: and grouping the CBGs of the target TB according to a preset sequencing combination.

The following are given by way of example: if the number of bits in the CBGFI field is 2 and the total number of CBGs included in the target TB is 8, the network side device may determine the CBG corresponding to each bit according to the preset ordering combination. Table 5 shows some possible examples of the preset sort combination when the number of bits in the CBGFI field is 2 and the total number of CBGs included in the target TB is 8, specifically as shown in table 5, for example, the content of the sort combination corresponding to number 1 of the sort combination is: bit 0 for CBG1, CBG4, CBG5, and CBG6, and bit 1 for CBG2, CBG3, CBG7, and CBG 8. It should be noted that the same applies to other quantity relationships, and this is only to illustrate a way that the network side device performs grouping according to a preset ordering combination.

TABLE 5

The preset rule I is described below with one sort combination, as shown in fig. 4D, the network side device determines that bit 0 corresponds to the first CBG, the fourth CBG, the fifth CBG, and the sixth CBG in the target TB; that is, bit 0 corresponds to CBG1, CBG4, CBG5 and CBG6 of the target TB, and bit 1 corresponds to the second CBG, third CBG, seventh CBG and eighth CBG of the target TB, that is, bit 1 corresponds to CBG2, CBG3, CBG7 and CBG 8.

A preset rule J: for the MIMO scene, the CBGs with the same sequence number on different TBs are indicated by the same bit.

In the MIMO mode, the network side device may adopt technologies such as precoding or beamforming according to channel information fed back by the terminal side device, so as to divide data to be transmitted into 8 layers and transmit the 8 layers in N antenna ports, where N is greater than or equal to 8; different layers can occupy the same time-frequency resource and have no or less interference with each other. By using the MIMO technology, the data transmission rate on the same time-frequency resource can be improved, and the network capacity is enlarged. When the terminal side device can be configured to adopt 2TB transmission, the number of configurable CBGs of each TB is 2 or 4, and the number of CBGs included in each TB is the same, where the total number of bits CBGs of TB1 and TB2 is N, the first N/2 CBGs may correspond to the CBG of TB1, and the last N/2 CBGs correspond to the CBG of TB2, and then the CBGs on the TB are distinguished by numbers, for example, CBGs (i, j), where i is an index to the TB, whose value may be 0 and 1, and j is an index to the CBG on each TB, whose value is 0 to N/2-1. For example, the sequence number of CBG (0,0) on TB1 is the same as the sequence number of CBG (1,0) on TB 2. The network side device can indicate the CBGs with the same sequence number on different TBs by using the same bit in the CBGFI domain;

for the reason that the network side device uses the same bit in the CBGFI domain to indicate that the CBG has failed to transmit by using the CBGs with the same sequence numbers on different TBs, reference may be made to the related description of step 303 in fig. 3A, which is not described herein again.

The preset rule J is explained below by a specific example:

as shown in fig. 4E, the target TBs include TB1 and TB2, and each TB includes four CBGs, the bit number of the CBGFI field is four bits, bit 0, bit 1, bit 2, and bit 3; in this case, the numbers of CBG (0,0) in TB1 are 1, the numbers of CBG (0,1) in TB1 are 2, the numbers of CBG (0,2) in TB1 are 3, and the numbers of CBG (0,3) in TB1 are 4. The sequence number of CBG (1,0) on TB2 is 1, the sequence number of CBG (1,1) on TB2 is 2, the sequence number of CBG (1,2) on TB2 is 3, and the sequence number of CBG (1,3) on TB2 is 4. Determining two CBGs corresponding to each bit through the preset rule F based on the network side equipment; the network side device may indicate CBGs with the same sequence number by the same bit. For example, as shown in fig. 4E, bit 0 corresponds to CBG (0,0) and CBG (1, 0); bit 1 corresponds to CBG (0,1) and CBG (1,1), and bit 2 corresponds to CBG (0,2) and CBG (1, 2); bit 3 corresponds to CBG (0,3) and CBG (1, 3); the CBG corresponding to each bit has the same sequence number on different TBs.

It should be noted that the bits corresponding to two CBGs with the same sequence number on different TBs can be flexibly set. For example, CBG (0,0) and CBG (1,0) may also correspond to bit 1, bit 2, or bit 3, and are determined according to a preset ordering combination of the network side device, which is not limited in this application, and fig. 4E is only an example.

For example, referring to fig. 4F, the target TBs include TB1 and TB2, each of the TBs includes four CBGs, the bit number of the CBGFI field is two bits, bit 0 and bit 1; in this case, the numbers of CBG (0,0) in TB1 are 1, the numbers of CBG (0,1) in TB1 are 2, the numbers of CBG (0,2) in TB1 are 3, and the numbers of CBG (0,3) in TB1 are 4. The sequence number of CBG (1,0) on TB2 is 1, the sequence number of CBG (1,1) on TB2 is 2, the sequence number of CBG (1,2) on TB2 is 3, and the sequence number of CBG (1,3) on TB2 is 4. Determining that each bit corresponds to four CBGs through the preset rule F based on the network side equipment; the network side device may indicate two CBGs on two different TBs with the same sequence number by using the same bit. For example, as shown in fig. 4F, bit 0 corresponds to CBG (0,0), CBG (1,0), CBG (0,1), and CBG (1, 1); bit 1 corresponds to CBG (0,2), CBG (1,2), CBG (0,3), and CBG (1, 3).

It should be noted that the bits corresponding to two CBGs with the same sequence number on different TBs can be flexibly set. For example, CBG (0,0) and CBG (1,0) may also correspond to bit 2, and are determined according to a preset ordering combination of the network side device, which is not limited in this application, and fig. 4F is only an example.

405. And the terminal side equipment receives a second RRC message sent by the network side equipment.

The network side device may determine the total number of CBGs included in the target TB, and then notify the terminal side device of the total number of CBGs included in the target TB through a second RRC message.

406. And the terminal side equipment determines the total number of CBGs contained in the target TB according to the second RRC message.

The second RRC message carries the total number of CBGs included in the target TB, and the terminal side device may determine the total number of CBGs included in the target TB according to the second RRC message.

407. And the terminal side equipment determines the number of the CBGs corresponding to each bit according to a third preset rule, the total number of the CBGs included in the target TB and the number of bits in the CBGFI domain.

The terminal side device determines the number of CBGs corresponding to each bit according to a third preset rule, the total number of CBGs included in the target TB, and the number of bits in the CBGFI domain, where the specific determination manner of the terminal side device may refer to the process of determining the number of CBGs corresponding to each bit by the network side device in step 403, that is, the determination manner of the terminal side device is consistent with the determination manner of the network side device, and the third preset rule may be a preset rule F or a preset rule G, and refer to the detailed description of step 403 specifically, which is not described herein again.

408. And the terminal side equipment determines at least one CBG corresponding to the bit of the bit number of the CBGFI domain according to the number of the CBGs corresponding to each bit and a fourth preset rule.

The terminal side device may determine at least one CBG corresponding to each bit according to the number of CBGs corresponding to each bit and a fourth preset rule. The specific process of determining the terminal-side device is similar to the process of determining the network-side device, and the fourth preset rule may include a preset rule H, a preset rule I, or a preset rule J, which please refer to the detailed description of step 404, which is not described herein again.

409. The network side device determines the state of the bits of the number of bits of the CBGFI domain.

And the terminal side equipment receives the CBG of the target TB sent by the network side equipment and decodes the CBG. Then, the terminal side equipment sends a feedback message to the network side equipment according to the decoding condition. If the terminal side equipment successfully receives the CBG, the terminal side equipment feeds back an ACK message to the network side equipment; and if the terminal side equipment does not successfully receive the CBG, the terminal side equipment feeds back NACK information to the network side equipment. And indicating that the CBG of the target TB is not successfully received in the corresponding process by the network side equipment through a feedback message. Therefore, the network side device can determine the CBG to be retransmitted on the target TB. The network side device can determine the state of the bit corresponding to the CBG to be retransmitted according to the reason for the unsuccessful transmission of the CBG to be retransmitted. For example, when the CBG to be retransmitted fails to be transmitted due to channel fading or channel interference, the network side device may instruct, through the bit, the terminal side device to perform a combining operation on the CBG to be retransmitted; when the CBG to be retransmitted fails to be transmitted due to the resource preemption by the service, the network side device may instruct the terminal side device to perform a clearing operation on the CBG to be retransmitted through the bit. The following examples illustrate: as shown in fig. 4B, if the transmission of CBG1 and CBG2 fails, the network side device determines the state of bit 0 according to the reason for the unsuccessful transmission of CBG1 and CBG 2; if both CBGs 1 and 2 fail to transmit due to channel fading or channel interference, the network side device may set the value of bit 0 to 0, so as to instruct the terminal side device to perform merging processing on CBGs 1 and 2; if at least one CBG of the CBGs 1 and 2 is a transmission failure due to the preemption of resources by the service, the network side device may set a value of bit 0 to 1, which is used to instruct the terminal side device to perform flushing processing on the CBGs 1 and 2.

410. And the terminal side equipment receives the DCI sent by the network side equipment.

Step 409 is similar to step 306 in fig. 3A, and please refer to the detailed description of step 306 in fig. 3A, which is not repeated herein.

411. And the terminal side equipment determines the state of the bits of the bit number of at least one CBG to be retransmitted and the CBGFI domain of the target TB according to the DCI.

The terminal side equipment determines the bit state of the bit number of the CBGTI domain according to DCI, determines at least one CBG to be retransmitted on the target TB according to the bit state of the bit number of the CBGTI domain, and determines the bit state of the bit number of the CBGFI domain, wherein the DCI comprises the bit state of the bit number of the CBGFI domain.

412. And the terminal side equipment performs corresponding processing on the at least one CBG to be retransmitted according to the state of the bits of the bit number.

In step 408, after the terminal-side device determines at least one CBG corresponding to a bit of the bit number of the CBGFI domain according to the number of CBGs corresponding to each bit and the fourth preset rule, the terminal-side device may determine at least one CBG corresponding to each bit, then determine a bit corresponding to the at least one CBG to be retransmitted, and perform corresponding processing on the at least one CBG to be retransmitted according to the state of each bit. For example, as shown in fig. 4E, if CBG (0,0) is the CBG to be retransmitted on TB 1; the CBGs (0,1) and (1,1) are CBGs to be retransmitted on the TB2, where a value of bit 0 is 0, and the network side device may determine to perform merging processing on the CBGs (0, 0); if the value of bit 1 is 1, the network side device may determine to perform flushing on CBG (0,1) and CBG (1, 1).

In this embodiment, the DCI further includes an RV field, and if bits of the CBGFI field indicate that the terminal-side device performs combining processing on the at least one CBG to be retransmitted, the network-side device may send the at least one CBG to be retransmitted to the terminal-side device through an RV value indicated by the RV field in the DCI, and the terminal-side device may determine, through the DCI, the RV value indicated by the RV field and then receive, through the RV value, the at least one CBG to be retransmitted sent by the network-side device; if the bits of the bits in the CBGFI field indicate that the terminal-side device performs the flush processing on the at least one CBG to be retransmitted, or indicate that the at least one CBG to be retransmitted is damaged, the network-side device may send the at least one CBG to be retransmitted to the terminal-side device through RV0 or an RV transmitted by the previous CBG, and the terminal-side device may receive the at least one CBG to be retransmitted sent by the network-side device through RV0 or an RV transmitted by the previous CBG.

In this embodiment of the present application, a network side device may allocate, to a terminal side device, a bit number of a CBGFI field through a first RRC message, where the bit number included in the CBGFI field is flexibly configurable. Then, the terminal side device may receive a second RRC message sent by the network side device, and determine at least one CBG corresponding to the bit of the CBGFI field according to the second RRC message. Then, the terminal side device receives the DCI sent by the network side device, and determines at least one CBG to be retransmitted corresponding to the bits of the bit number through the DCI. Therefore, according to the technical scheme of the present application, the network side device may configure the bit number of the CBGFI domain for the terminal side device, and then the terminal side device determines at least one CBG corresponding to the bit of the CBGFI domain according to the second RRC message. When the terminal side equipment receives DCI sent by the network side equipment, the terminal side equipment determines at least one CBG to be retransmitted corresponding to the bits of the bit number according to the DCI. When there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to being preempted by URLLC service at the same time, the terminal side device may perform corresponding processing on these CBGs through the bits corresponding to the CBGFI domain, so as to reduce or avoid emptying the buffer of the CBGs that fail to be transmitted due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

With reference to fig. 5, the communication processing method in the embodiment of the present application is described above, and a communication processing apparatus 500 provided in the embodiment of the present application is described below, where an embodiment of the communication processing apparatus 500 in the embodiment of the present application includes:

a transceiver module 501, configured to receive a first message sent by a network side device, where the first message is used to configure the number of bits included in a CBGFI field in DCI; receiving a second message sent by the network side device, where the second message is used to determine at least one coding block group CBG corresponding to a bit of the bit number;

a processing module 502, configured to determine, according to the second message, at least one CBG corresponding to a bit of the bit number.

In a possible implementation manner, the first message is an RRC message, the second message is the DCI, and the at least one CBG determined by the second message is at least one CBG to be retransmitted.

In another possible implementation manner, the first message and the second message are RRC messages, and the second message indicates a correspondence between bits of the bit number and the at least one CBG.

In another possible implementation manner, the transceiver module 501 is further configured to:

receiving the DCI;

the processing module 502 is further configured to:

and determining at least one CBG to be retransmitted in the at least one CBG according to the DCI.

In another possible implementation manner, the at least one CBG includes at least a first CBG belonging to a first transport block and a second CBG belonging to a second transport block, a sequence number of the first CBG in the first transport block is the same as a sequence number of the second CBG in the second transport block, and the first CBG and the second CBG correspond to the same bit in the CBGFI field.

In another possible implementation manner, the at least one CBG includes at least a first CBG belonging to the first transport block and a second CBG belonging to the second transport block, and a sequence number of the first CBG in the first transport block is the same as a sequence number of the second CBG in the second transport block; the processing module 502 is further configured to:

and if the first CBG is decoded successfully, determining to carry out merging processing on the second CBG without depending on the bit corresponding to the second CBG in the CBGFI field.

In another possible implementation, the DCI further includes an RV field, and for any CBG to be retransmitted in the at least one CBG; the transceiver module 501 is further configured to:

if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates the CBG to be retransmitted to be combined, using the RV value indicated by the RV domain to receive the CBG to be retransmitted;

and if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is damaged, using the RV value as 0 to receive the CBG to be retransmitted.

In this embodiment of the present application, a transceiver module 501 receives a first message sent by a network side device, where the first message is used to configure the number of bits included in a CBGFI field in DCI; then, the transceiver module 501 may receive a second message sent by the network side device, and the processing module 502 determines at least one CBG corresponding to the bit of the bit number according to the second message. Therefore, according to the technical scheme of the application, the network side device can configure the bit number of the CBGFI domain for the terminal side device, and the bit of the bit number corresponds to at least one CBG. When there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to being preempted by the URLLC service at the same time, the processing module 502 may perform corresponding processing on these CBGs through the bits corresponding to the CBGFI domain, so as to reduce or avoid emptying the buffer of the CBGs that fail to be transmitted due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

The communication processing method in the embodiment of the present application is described above, and referring to fig. 6, a communication processing apparatus 600 provided in the embodiment of the present application is described below, where a processing module 602 is an optional module, and an embodiment of the communication processing apparatus 600 in the embodiment of the present application includes:

a transceiver module 601, configured to send a first message to a terminal side device, where the first message includes a bit number included in a CBGFI field used for configuring downlink control information DCI; and sending a second message to the terminal side equipment, wherein the second message is used for the terminal side equipment to determine at least one CBG corresponding to the bit of the bit number.

In another possible implementation manner, the transceiver module 601 is further configured to:

and sending the DCI to the terminal side equipment, wherein the DCI is used for the terminal side equipment to determine at least one CBG to be retransmitted in the at least one CBG.

In another possible implementation, the DCI further includes an RV field, and for any CBG to be retransmitted in the at least one CBG; the transceiver module 601 is further configured to:

if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates the CBG to be retransmitted to be merged, the CBG to be retransmitted is sent to the terminal side equipment through the RV value indicated by the RV domain;

and if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is damaged, sending the CBG to be retransmitted to the terminal side equipment with the RV value of 0.

In this embodiment of the application, the transceiver module 601 may allocate, to the terminal side device, the bit number for configuring the CBGFI field in the DCI through the first message; then, the transceiver module 601 sends a second message to the terminal side device, where the second message is used for the terminal side device to determine at least one CBG corresponding to the bit of the bit number. The transceiver module 601 may configure the bit number of the CBGFI field for the terminal-side device, and the bit number corresponds to at least one CBG. When there are CBGs that fail to be transmitted due to channel fading or channel interference and CBGs that fail to be transmitted due to being preempted by URLLC service at the same time, the terminal side device may perform corresponding processing on these CBGs through the bits corresponding to the CBGFI domain, so as to reduce or avoid emptying the buffer of the CBGs that fail to be transmitted due to channel fading or channel interference, and reduce or avoid bringing about gain loss, thereby improving data transmission performance.

Please refer to fig. 7, which is a schematic structural diagram of a terminal-side device according to an embodiment of the present application. It may be the terminal-side device in the above embodiment, for implementing the operation of the terminal-side device in the above embodiment. As shown in fig. 7, the terminal-side apparatus includes: an antenna 710, a radio frequency section 720, a signal processing section 730. The antenna 710 is connected to the radio frequency section 720. In the downlink direction, the radio frequency part 720 receives information transmitted by the network side device through the antenna 710, and transmits the information transmitted by the network side device to the signal processing part 730 for processing. In the uplink direction, the signal processing portion 730 processes the information of the terminal-side device and sends the information to the radio frequency portion 720, and the radio frequency portion 720 processes the information of the terminal-side device and sends the information to the network-side device through the antenna 710.

The signal processing portion 730 may include a modem subsystem for implementing processing of various communication protocol layers of data; the system also comprises a central processing subsystem which is used for realizing the processing of an operating system and an application layer of the terminal side equipment; in addition, other subsystems, such as a multimedia subsystem for controlling a terminal-side camera, a screen display, etc., and a peripheral subsystem for connecting to other devices, may be included. The modem subsystem may be a separately provided chip. Alternatively, the above means for the terminal side device may be located at the modem subsystem.

The modem subsystem may include one or more processing elements 731, for example, including a master CPU and other integrated circuits. The modem subsystem may also include a storage element 732 and an interface circuit 733. The storage element 732 is used to store data and programs, but the program for executing the method executed by the terminal-side device in the above method may not be stored in the storage element 732, but may be stored in a memory other than the modem subsystem, and the modem subsystem is loaded for use when in use. The interface circuit 733 is used to communicate with other subsystems. The above apparatus for a terminal-side device may be located in a modem subsystem, which may be implemented by a chip comprising at least one processing element for performing the steps of any of the methods performed by the above terminal-side device and interface circuitry for communicating with other apparatus. In one implementation, the unit for the terminal-side device to implement each step in the above method may be implemented in the form of a processing element scheduler, for example, the apparatus for the terminal-side device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the terminal-side device in the above method embodiment. The memory elements may be memory elements with the processing elements on the same chip, i.e. on-chip memory elements.

In another implementation, the program for executing the method performed by the terminal-side device in the above method may be a storage element on a different chip than the processing element, i.e. an off-chip storage element. At this time, the processing element calls or loads a program from the off-chip storage element onto the on-chip storage element to call and execute the method executed by the terminal-side device in the above method embodiment.

In yet another implementation, the unit for implementing the steps of the above method by the terminal-side device may be configured as one or more processing elements disposed on the modem subsystem, where the processing elements may be integrated circuits, for example: one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits may be integrated together to form a chip.

The units of the terminal side device for implementing the steps of the above method can be integrated together and implemented in the form of a system-on-a-chip (SOC) chip for implementing the above method. At least one processing element and a storage element can be integrated in the chip, and the processing element calls the stored program of the storage element to realize the method executed by the terminal-side equipment; or, at least one integrated circuit may be integrated in the chip, for implementing the method executed by the above terminal-side device; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.

It is seen that the above apparatus for a terminal side device may comprise at least one processing element and interface circuitry, wherein the at least one processing element is configured to perform any of the methods performed by the terminal side device provided by the above method embodiments. The processing element may: namely, part or all of the steps executed by the terminal side equipment are executed by calling the program stored in the storage element; it is also possible to: namely, the integrated logic circuit of the hardware in the processor element is combined with the instruction to execute part or all of the steps executed by the terminal side equipment; of course, some or all of the steps performed by the terminal-side device may be performed in combination with the first and second modes.

The processing elements herein, like those described above, may be a general purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more microprocessors DSP, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.

The storage element may be a memory or a combination of a plurality of storage elements.

Please refer to fig. 8, which is a schematic structural diagram of a network device according to an embodiment of the present disclosure. For implementing the operation of the network side device in the above embodiment. As shown in fig. 8, the network-side device includes: antenna 801, radio frequency device 802, baseband device 803. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the rf apparatus 802 receives information transmitted by the terminal side device through the antenna 801, and transmits the information transmitted by the terminal side device to the baseband apparatus 803 for processing. In the downlink direction, the baseband device 803 processes the information of the terminal side device and transmits the information to the radio frequency device 802, and the radio frequency device 802 processes the information of the terminal side device and transmits the information to the terminal side device through the antenna 801.

The baseband device 803 may include one or more processing elements 8031, including, for example, a host CPU and other integrated circuits. In addition, the baseband device 803 may further include a storage element 8032 and an interface 8033, the storage element 8032 being used to store programs and data; the interface 8033 is used for exchanging information with the radio frequency device 802, and is, for example, a Common Public Radio Interface (CPRI). The above means for the network side device may be located in the baseband apparatus 803, for example, the above means for the network side device may be a chip on the baseband apparatus 803, the chip including at least one processing element and interface circuits, wherein the processing element is configured to execute various steps of any one of the methods executed by the above network side device, and the interface circuits are configured to communicate with other devices. In one implementation, the unit of the network side device for implementing each step in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for the network side device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the network side device in the above method embodiment. The memory elements may be memory elements on the same chip as the processing element, i.e. on-chip memory elements, or may be memory elements on a different chip than the processing element, i.e. off-chip memory elements.

In another implementation, the unit of the network side device implementing the steps in the above method may be configured as one or more processing elements, which are disposed on the baseband apparatus, where the processing elements may be integrated circuits, for example: one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits may be integrated together to form a chip.

The units of the network side device for implementing the steps of the above method may be integrated together and implemented in the form of a system-on-a-chip (SOC), for example, a baseband device including the SOC chip for implementing the above method. At least one processing element and a storage element can be integrated in the chip, and the processing element calls the stored program of the storage element to realize the method executed by the network side equipment; or, at least one integrated circuit may be integrated in the chip, so as to implement the method executed by the above network-side device; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.

It is seen that the above apparatus for a network side device may comprise at least one processing element and an interface circuit, wherein the at least one processing element is configured to perform any one of the methods performed by the network side device provided by the above method embodiments. The processing element may: namely, the method calls the program stored in the storage element to execute part or all of the steps executed by the network side equipment; it is also possible to: that is, some or all of the steps executed by the network side device are executed by the integrated logic circuit of the hardware in the processor element in combination with the instructions; of course, some or all of the steps performed by the above network-side device may also be performed in combination with the first manner and the second manner.

Please refer to fig. 9, which is a schematic structural diagram of another network-side device according to an embodiment of the present application. It may be the network side device in the above embodiment, and is used to implement the operation of the network side device in the above embodiment.

As shown in fig. 9, the network-side device includes: the processor 910, the memory 920 and the interface 930 are in signal connection, and the processor 910, the memory 920 and the interface 930 are in signal connection.

The above communication apparatus 600 is located in the network side device, and the functions of the respective units can be realized by the processor 910 calling the program stored in the memory 920. That is, the above communication apparatus 600 includes a memory for storing a program, which is called by the processor to execute the method in the above method embodiment, and a processor. The processor here may be an integrated circuit with signal processing capabilities, such as a CPU. Or the functions of the above respective units may be implemented by one or more integrated circuits configured to implement the above methods. For example: one or more ASICs, or one or more microprocessors DSP, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. Alternatively, the above implementations may be combined.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In another possible design, when the terminal-side device or the network-side device is a chip in a terminal, the chip includes: a processing unit, which may be for example a processor, and a communication unit, which may be for example an input/output interface, a pin or a circuit, etc. The processing unit may execute the computer execution instructions stored in the storage unit to make the chip in the terminal execute the communication processing method of any one of the first aspect or the second aspect. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory (ROM) or another type of static storage device that can store static information and instructions, a Random Access Memory (RAM), and the like.

The processor mentioned in any of the above may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling execution of a program of the data processing method of the first aspect.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

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

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

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit 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 application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network-side device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A method of communication processing, the method comprising:

the method comprises the steps that terminal side equipment receives a first message sent by network side equipment, wherein the first message is used for configuring the bit number contained in a coding block group emptying information CBGFI domain in downlink control information DCI;

the terminal side equipment receives a second message sent by the network side equipment, wherein the second message is used for determining at least one coding block group CBG corresponding to the bit of the bit number;

and the terminal side equipment determines at least one CBG corresponding to the bit of the bit number according to the second message.

2. The method of claim 1, wherein the first message is a Radio Resource Control (RRC) message, wherein the second message is the DCI, and wherein the at least one CBG determined by the second message is at least one CBG to be retransmitted.

3. The method of claim 1, wherein the first message and the second message are Radio Resource Control (RRC) messages, and wherein the second message indicates a correspondence of bits of the number of bits to the at least one CBG.

4. The method according to claim 3, wherein after the terminal side device determines at least one CBG corresponding to the bit of the bit number according to the second message, the method further comprises:

the terminal side equipment receives the DCI;

and the terminal side equipment determines at least one CBG to be retransmitted in the at least one CBG according to the DCI.

5. The method according to any of claims 1 to 4, wherein the at least one CBG comprises at least a first CBG belonging to a first transport block and a second CBG belonging to a second transport block, wherein the sequence number of the first CBG in the first transport block is the same as the sequence number of the second CBG in the second transport block, and wherein the first CBG and the second CBG correspond to the same bit in the CBGFI domain.

6. The method according to any of claims 1 to 4, wherein the at least one CBG comprises at least a first CBG belonging to a first transport block and a second CBG belonging to a second transport block, wherein the sequence number of the first CBG in the first transport block is the same as the sequence number of the second CBG in the second transport block;

and if the first CBG is decoded successfully, the terminal side equipment determines to merge the second CBG under the condition of not depending on the bit corresponding to the second CBG in the CBGFI domain.

7. The method of any of claims 2 to 4, wherein the DCI further comprises an RV field, a CBG to be retransmitted for any of the at least one CBG;

if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is merged, the terminal side equipment receives the CBG to be retransmitted by using the RV value indicated by the RV domain;

and if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is damaged, the terminal side equipment receives the CBG to be retransmitted by using the RV value of 0.

8. A method of communication processing, the method comprising:

the method comprises the steps that network side equipment sends a first message to terminal side equipment, wherein the first message comprises the bit number contained in a CBGFI (channel quality indicator) domain used for configuring Downlink Control Information (DCI);

and the network side equipment sends a second message to the terminal side equipment, wherein the second message is used for the terminal side equipment to determine at least one CBG corresponding to the bit of the bit number.

9. The method of claim 8, wherein the first message is a Radio Resource Control (RRC) message, wherein the second message is the DCI, and wherein the at least one CBG determined by the second message is at least one CBG to be retransmitted.

10. The method of claim 8, wherein the first message and the second message are Radio Resource Control (RRC) messages, and wherein the second message indicates a correspondence of bits of the number of bits to the at least one CBG.

11. The method of claim 10, further comprising:

and the network side equipment sends the DCI to the terminal side equipment, wherein the DCI is used for the terminal side equipment to determine at least one CBG to be retransmitted in the at least one CBG.

12. The method according to any of claims 8 to 11, wherein the at least one CBG comprises at least a first CBG belonging to a first transport block and a second CBG belonging to a second transport block, wherein the sequence number of the first CBG in the first transport block is the same as the sequence number of the second CBG in the second transport block, and wherein the first CBG and the second CBG correspond to the same bit in the CBGFI domain.

13. The method of any of claims 8 to 11, wherein the DCI further comprises a RV domain, a CBG to be retransmitted for any of the at least one CBG;

if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is merged, the network side equipment sends the CBG to be retransmitted to the terminal side equipment through the RV value indicated by the RV domain;

and if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is damaged, the network side equipment sends the CBG to be retransmitted to the terminal side equipment through the RV value of 0.

14. A communication processing apparatus, characterized in that the communication processing apparatus comprises:

a transceiver module, configured to receive a first message sent by a network side device, where the first message is used to configure a bit number included in a coding block group clearing information CBGFI field in downlink control information DCI;

the transceiver module is configured to receive a second message sent by the network side device, where the second message is used to determine at least one coding block group CBG corresponding to a bit of the bit number;

and the processing module is used for determining at least one CBG corresponding to the bit of the bit number according to the second message.

15. The apparatus according to claim 14, wherein the first message is a radio resource control RRC message, the second message is the DCI, and the at least one CBG determined by the second message is at least one CBG to be retransmitted.

16. The apparatus according to claim 14, wherein the first message and the second message are Radio Resource Control (RRC) messages, and the second message indicates a correspondence between bits of the bit number and the at least one CBG.

17. The communication processing apparatus of claim 16, wherein the transceiver module is further configured to:

receiving the DCI;

the processing module is further configured to:

18. The communication processing apparatus according to any one of claims 14 to 17, wherein the at least one CBG includes at least a first CBG belonging to a first transport block and a second CBG belonging to a second transport block, a sequence number of the first CBG in the first transport block is the same as a sequence number of the second CBG in the second transport block, and the first CBG and the second CBG correspond to the same bit in the CBGFI domain.

19. The communication processing apparatus according to any one of claims 14 to 17, wherein the at least one CBG includes at least a first CBG belonging to a first transport block and a second CBG belonging to a second transport block, and a sequence number of the first CBG in the first transport block is the same as a sequence number of the second CBG in the second transport block; the processing module is further configured to:

and if the first CBG is decoded successfully, determining to merge the second CBG without depending on the bit corresponding to the second CBG in the CBGFI domain.

20. The apparatus according to any one of claims 15 to 17, wherein the DCI further comprises an RV domain, for any one of the at least one CBG, a CBG to be retransmitted; the transceiver module is further configured to:

and if the corresponding bit of the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is damaged, using the RV value as 0 to receive the CBG to be retransmitted.

21. A communication processing apparatus, characterized in that the communication processing apparatus comprises:

a transceiver module, configured to send a first message to a terminal side device, where the first message includes a bit number included in a CBGFI field used for configuring downlink control information DCI;

the transceiver module is configured to send a second message to the terminal side device, where the second message is used for the terminal side device to determine at least one CBG corresponding to a bit of the bit number.

22. The apparatus of claim 21, wherein the first message is a Radio Resource Control (RRC) message, wherein the second message is the DCI, and wherein the at least one CBG determined by the second message is at least one CBG to be retransmitted.

23. The apparatus according to claim 21, wherein the first message and the second message are Radio Resource Control (RRC) messages, and wherein the second message indicates a correspondence between bits of the number of bits and the at least one CBG.

24. The communication processing apparatus of claim 23, wherein the transceiver module is further configured to:

25. The communication processing apparatus according to any one of claims 21 to 24, wherein the at least one CBG comprises at least a first CBG belonging to a first transport block and a second CBG belonging to a second transport block, a sequence number of the first CBG in the first transport block being the same as a sequence number of the second CBG in the second transport block, the first CBG and the second CBG corresponding to the same bit in the CBGFI domain.

26. The apparatus according to any of claims 21 to 24, wherein the DCI further comprises a RV domain, for any of the at least one CBG, a CBG to be retransmitted; the transceiver module is further configured to:

if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is merged, the CBG to be retransmitted is sent to the terminal side equipment through the RV value indicated by the RV domain;

and if the bit corresponding to the CBG to be retransmitted in the CBGFI domain indicates that the CBG to be retransmitted is damaged, sending the CBG to be retransmitted to the terminal side equipment by using the RV value of 0.

27. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any of claims 1 to 13.