WO2023072147A1

WO2023072147A1 - Communication method and apparatus

Info

Publication number: WO2023072147A1
Application number: PCT/CN2022/127690
Authority: WO
Inventors: 朱鹏; 张健; 周勋
Original assignee: 华为技术有限公司
Priority date: 2021-10-28
Filing date: 2022-10-26
Publication date: 2023-05-04
Also published as: CN114205874A

Abstract

Embodiments of the present application provide a communication method and apparatus. The method comprises: in a carrier aggregation scenario, a first network device communicates with a terminal device in a first mode. In the first mode, before multiple HARQ processes are exhausted, there exists at least one HARQ process in the multiple HARQ processes, each of the at least one HARQ process occupying multiple time slots. The first network device is a network device that does not receive a PUCCH sent by the terminal device. According to the solution of the present application, the first network device communicates with the terminal device in the first mode. Since at least one HARQ process in the multiple HARQ processes occupies multiple time slots, the utilization of HARQ processes is economized compared to the situation in which each of the multiple HARQ processes only occupies one time slot, thereby mitigating the limitations to the HARQ processes and reducing the loss of the downlink rate.

Description

Communication method and device

This application claims the priority of a Chinese patent application with application number 202111260348.0 and application title "Communication Method and Apparatus" filed with the China Patent Office on October 28, 2021, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of communication, and more specifically, to a communication method and device.

Background technique

In the carrier aggregation scenario, for a network device (referred to as the first network device) that does not receive the physical uplink control channel (PUCCH) sent by the terminal device, the first network device communicates with the terminal device In the process, there is a possible situation that all hybrid automatic repeat request (HARQ) processes of the first network device have been used up, but the first network device has not received any ACK of any HARQ process or NACK information. In this case, if the first network device needs to send a new physical downlink shared channel (physical downlink shared channel, PDSCH) initial transmission, the first network device needs to wait for a certain HARQ process to be released, resulting in a decrease in the downlink rate of the first network device . Therefore, how to increase the downlink rate of the first network device is an urgent problem to be solved.

Contents of the invention

Embodiments of the present application provide a communication method and device. The downlink rate of the first network device can be increased.

In a first aspect, a communication method is provided, including:

In the carrier aggregation CA scenario, the first network device communicates with the terminal device based on the first mode. The first mode is that at least one HARQ process exists among the multiple HARQ processes before all the multiple HARQ processes are used up. , each of the at least one HARQ process occupies multiple time slots, wherein the first network device is a network device that does not receive the physical uplink control channel PUCCH sent by the terminal device.

According to the solution of the present application, when the first network device communicates with the terminal device based on the first mode, since at least one HARQ process in the multiple HARQ processes occupies multiple time slots, compared to each HARQ process in the multiple HARQ processes The process only occupies one time slot, and the use of the HARQ process is saved, which can alleviate the limitation of the HARQ process, and even the HARQ process is no longer limited, reducing the loss of the downlink rate, and even no loss in the downlink rate.

In combination with the first aspect, in some implementations of the first aspect, the method further includes:

The first network device receives first indication information from the second network device, and the first indication information is used to instruct the first network device to communicate with the terminal device based on the first mode; wherein, the second network device receives the PUCCH sent by the terminal device Internet equipment.

The first network device determines whether to communicate with the terminal device based on the first mode according to the first information; the first information includes one or more of the following:

The processing delay of the terminal device, the transmission delay between the terminal device and the second network device, the processing delay of the second network device, the transmission delay between the second network device and the first network device, the second network device The difference in time domain configuration between the corresponding cell and the cell corresponding to the first network device; wherein, the second network device is a network device that receives the PUCCH sent by the terminal device.

With reference to the first aspect, in some implementation manners of the first aspect, the multiple time slots are continuous time slots; or, the multiple time slots are discontinuous time slots.

The first network device transmits the same transport block TB in multiple time slots.

With reference to the first aspect, in some implementation manners of the first aspect, multiple time slots correspond to different redundancy versions RV of the same TB.

The first network device transmits different TBs in multiple time slots.

With reference to the first aspect, in some implementation manners of the first aspect, multiple time slots correspond to the same RV of different TBs.

In a second aspect, a communication method is provided, including:

In the carrier aggregation CA scenario, the second network device generates first indication information, and the first indication information is used to instruct the first network device to communicate with the terminal device based on the first mode; the second network device sends the first network device to the first network device Indication information; wherein, the first mode is that there is at least one HARQ process in the multiple HARQ processes before all the multiple HARQ processes are used up, and each HARQ process in the at least one HARQ process occupies multiple time slots mode, the first network device is a network device that does not receive the PUCCH sent by the terminal device, and the second network device is a network device that receives the PUCCH sent by the terminal device.

According to the solution of the present application, the second network device may send the first indication information to the first network device, so that the first network device communicates with the terminal device based on the first mode according to the indication of the first indication information.

With reference to the second aspect, in some implementation manners of the second aspect, the method further includes:

The second network device determines whether the HARQ process on the first network device is limited according to the first information, and/or determines whether the downlink rate of the first network device is impaired; the first information includes one or more of the following :

The processing delay of the terminal device, the transmission delay between the terminal device and the second network device, the processing delay of the second network device, the transmission delay between the second network device and the first network device, the second network device A difference in time domain configuration between the corresponding cell and the cell corresponding to the first network device.

The first indication information is generated when the HARQ process on the first network device is limited, and/or the downlink rate of the first network device is impaired.

The second network device communicates with the terminal device based on a second mode; the second mode is a mode in which each of the multiple HARQ processes occupies one time slot before all the multiple HARQ processes are used up.

In a third aspect, a communication device is provided, including a unit for performing the method in the first aspect or various implementations thereof.

In a fourth aspect, a communications device is provided, including a unit for executing the method in the second aspect or various implementations thereof.

According to a fifth aspect, a communication device is provided, including a communication interface and at least one processor. The memory is used to store computer programs. When the communication device is running, the processor executes the computer programs or instructions stored in the memory, so that the communication device executes the method in the first aspect or its various implementations. Or, make the communication device execute the method in the second aspect or its various implementation manners.

In a sixth aspect, a computer-readable storage medium is provided, including a computer program. When the computer program is run on a computer, the computer is made to execute the method in the first aspect or various implementations thereof. Or, make the computer execute the method in the second aspect or various implementations thereof.

In a seventh aspect, a chip is provided, and a processing circuit is disposed on the chip, and the processing circuit is used to execute the method in the first aspect or various implementation manners thereof. Alternatively, the processing circuit is configured to execute the method in the second aspect or various implementations thereof.

In an eighth aspect, a computer program product is provided, and the computer program product includes: a computer program (also referred to as code, or an instruction), which, when the computer program is executed, causes the computer to execute the program described in the first aspect or its various implementations. Methods. Or, make the computer execute the method in the second aspect or various implementations thereof.

Description of drawings

Fig. 1 shows the system architecture applicable to the embodiment of the present application.

Fig. 2 shows a communication method proposed by this application.

Fig. 3 shows an example of the first mode.

Fig. 4 shows another example of the first mode.

Fig. 5 shows another example of the first mode.

Fig. 6 shows a schematic block diagram of a communication device provided by this application.

Fig. 7 shows another schematic block diagram of a communication device provided by this application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5th Generation (5G) system or new radio (New Radio, NR), the future sixth generation (6th Generation, 6G) system, etc.

Fig. 1 shows a communication system to which the embodiment of the present application is applicable. The communication system includes a first network device, a second network device, and a terminal device.

Wherein, the first network device is a network device that does not receive a physical uplink control channel (PUCCH) sent by the terminal device, and the second network device is a network device that receives the PUCCH sent by the terminal device.

The terminal equipment in the embodiment of the present application may refer to user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless Communication Device, User Agent, or User Device. The terminal equipment can also be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in the evolved public land mobile network (Public Land Mobile Network, PLMN) etc., which is not limited in this embodiment of the present application.

The network device in the embodiment of the present application may be a device for communicating with a communication device, and the network device may be a Global System of Mobile communication (GSM) system or a Code Division Multiple Access (CDMA) system. ) in the base station (Base Transceiver Station, BTS), also can be the base station (NodeB, NB) in the wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, can also be the evolved type base station ( Evolutional NodeB, eNB or eNodeB), it can also be a wireless controller in the cloud radio access network (Cloud Radio Access Network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle device, a wearable device, The embodiment of the present application does not limit the network equipment in the 5G network or the network equipment in the evolved PLMN network, and the network equipment in the future 6G network.

In the carrier aggregation (carrier aggregation, CA) scenario, the first network device usually cannot directly receive the acknowledgment (acknowledgement) corresponding to some hybrid automatic repeat request (HARQ) processes of the first network device from the terminal device , ACK) or non-acknowledgement (NACK) information. Generally speaking, the steps for the first network device to obtain the ACK or NACK information corresponding to certain HARQ processes (for example, HARQ process #1-HARQ process #3) are as follows:

Step 1: The terminal device sends information #A to the second network device, and the information #A includes ACK or NACK information corresponding to the HARQ process #1-HARQ process #3 of the first network device.

The information #A is carried on the PUCCH. That is, the terminal device sends information #A to the second network device through the PUCCH.

It should be understood that information #A may also include ACK or NACK information corresponding to HARQ processes of other network devices.

Step 2: The second network device parses out the ACK or NACK information corresponding to the HARQ process #1-HARQ process #3 of the first network device from the information #A.

Step 3: The second network device sends the ACK or NACK information corresponding to the HARQ process #1-HARQ process #3 of the first network device to the first network device.

The first network device then judges whether to release the HARQ process #1-HARQ process #3 according to the ACK or NACK information corresponding to the HARQ process #1-HARQ process #3.

For example, in a 4G system, the total number of HARQ processes is 8; in a 5G system, the total number of HARQ processes is 16.

As a situation, all the HARQ processes of the first network device have been used up, but the first network device has not received any ACK or NACK information of any HARQ process. That is, the first network device cannot release any HARQ process yet. At this point, if the first network device needs to send a new physical downlink shared channel (PDSCH) initial transmission, the first network device needs to wait for a certain HARQ process to be released before occupying the HARQ process to send the PDSCH initial transmission . That is, at this time, the first network device cannot send the initial PDSCH transmission in the slot that could have sent the initial PDSCH transmission, and the HARQ process of the first network device is limited, resulting in a decrease in the downlink rate of the first network device.

As another situation, if the HARQ preemption technology is used, the first network device still needs to wait for the terminal device to send the above information #A, but the first network device no longer waits for the second network device to resolve the first network device from the information #A The ACK or NACK information corresponding to the HARQ process #1-HARQ process #3 directly occupies these HARQ processes. On the one hand, since the first network device still needs to wait for the terminal device to send the above information #A, it is also possible that the HARQ process of the first network device is limited, resulting in a decrease in the downlink rate of the first network device. On the other hand, since the first network device no longer waits for the second network device to parse out the ACK or NACK information corresponding to the HARQ process #1-HARQ process #3 of the first network device from the information #A, these HARQ processes are directly occupied , when the terminal device fails to correctly receive the initial transmission of a certain PDSCH, the first network device does not retransmit the PDSCH, which eventually leads to a decrease in the downlink rate.

Based on this, as shown in FIG. 2 , the present application provides a communication method 200 for solving the above problem. The method 200 is applicable to the communication system shown in FIG. 1 . For the convenience of description, in the following, the terminal device is a UE and the network device is a base station as an example for description. The method 200 includes:

S210, in a CA scenario, base station #1 (an example of a first network device) communicates with UE #1 based on a first mode.

The first mode is a mode in which at least one HARQ process exists in the multiple HARQ processes before all the multiple HARQ processes are used up, and each HARQ process in the at least one HARQ process occupies multiple time slots (slots). Wherein, the base station #1 is a base station that does not receive the PUCCH sent by the UE #1.

As a possible situation, each of the multiple HARQ processes occupies multiple time slots. Optionally, each of the multiple HARQ processes occupies the same number of time slots.

Optionally, the first mode may be implemented based on TTI bundling (TTI bundling), or slot aggregation technology, or may also be other technologies.

Optionally, when the first mode is implemented based on the slot aggregation technology, the number of transmission layers supported by the slot aggregation transmission mode can be greater than or equal to 1 (that is, the rank can be greater than or equal to 1), and a single stream can also be used when sending the PDSCH Use multiple streams.

The base station #1 may be one or more base stations, and the UE #1 may be one or more UEs, which are not limited in this application.

It should be understood that in the CA scenario, the base stations associated with UE#1 include base station #1 and base station #2 (an example of the second network device). The base station #2 is a base station that receives the PUCCH sent by the UE#1. For example, base station #2 may be a base station corresponding to the primary cell, or may be a base station corresponding to a PUCCH-secondary cell (PUCCH-SCell).

Optionally, the frequency range (frequency range, FR) of the base station #1 is FR2, and the frequency range of the base station #2 is FR1. That is, it is a high and low frequency CA scene.

The first mode will be described in detail below.

Case 1:

The multiple slots occupied by each HARQ process in at least one HARQ process may be consecutive slots.

For example, as shown in Figure 3, when base station #1 communicates with UE#1, HARQ process #0 occupies slot #0 and slot #1, HARQ process #1 occupies slot #2 and slot #3, and HARQ process #2 occupies Occupies slot#4 and slot#5.

Case 2:

The multiple slots occupied by each HARQ process in at least one HARQ process may be discontinuous slots.

Case 3:

Base station #1 can transmit the same transport block (TB) on multiple slots occupied by one HARQ process.

For example, as shown in FIG. 4 , HAQR process #0 occupies slot #0 and slot #1, and base station #1 transmits TB #0 on slot #0, and transmits TB #0 on slot #1 as well. Optionally, the redundancy versions (redundancy version, RV) of TB#0 on slot#0 and slot#1 are different. For example, the RV of TB#0 on slot#0 is RV#0, and the RV of TB#0 on slot#1 is RV#1.

Case 4:

Base station #1 can transmit different TBs on multiple slots occupied by one HARQ process.

For example, as shown in FIG. 5 , HAQR process #0 occupies slot #0 and slot #1, and base station #1 transmits TB #0 on slot #0 and transmits TB #1 on slot #1. Optionally, the RV of TB#0 on slot#0 is the same as the RV of TB#1 on slot#1. For example, the RV of TB#0 on slot#0 is RV#0, and the RV of TB#1 on slot#1 is RV#0.

Optionally, on the basis of S210, further, base station #1 may communicate with UE #1 based on the HARQ preemption technology. That is, base station 1 can communicate with UE#1 based on both the method in S210 and the HARQ preemption technology. For the HARQ preemption technology, reference may be made to the above description.

According to the solution of the present application, the method based on S210 and the HARQ preemption technology can further alleviate the limitation of the HARQ process and reduce the loss of the downlink rate.

Optionally, the method may also include S220:

S220, in a CA scenario, base station #2 communicates with UE #1 based on the second mode.

The second mode is a mode in which each HARQ process in the multiple HARQ processes only occupies one slot before all the multiple HARQ processes are used up.

Regarding the second mode, details will not be described below.

Optionally, as a first possible situation, before S210, the method further includes S201 and S202:

S201, base station #2 determines whether the HARQ process on base station #1 is limited according to the first information, and/or determines whether the downlink rate of base station #1 is impaired.

Wherein, the first information includes one or more of the following:

The processing delay of UE#1, the transmission delay between UE#1 and base station #2, the processing delay of base station #2, the transmission delay between base station #2 and base station #1, and the corresponding The difference in time domain configuration between the cell and the cell corresponding to base station #1.

Wherein, the time domain configuration includes one or more of the following:

Time division duplex (time division duplex, TDD) configuration, frequency division duplex (frequency division duplex, FDD) configuration, time slot length configuration, TDD time slot ratio.

Regarding the first information, details will not be described below.

For example, if one or more of the following situations occurs, it can be considered that the HARQ process on base station #1 is limited, and/or, it is determined that the downlink rate of base station #1 is impaired:

The processing delay of UE#1 is greater than threshold #1, the transmission delay between UE#1 and base station #2 is greater than threshold #2, the processing delay of base station #2 is greater than threshold #3, and the transmission delay between base station #2 and base station #1 is greater than threshold #2. The transmission delay between them is greater than threshold #4, and the sum of the above four delays is greater than threshold #5. It should be understood that there may be other situations, which will not be listed one by one here. It should be understood that, as a possible manner, the foregoing threshold may be pre-configured in base station #1.

S202, when the HARQ process on base station #1 is limited, and/or the downlink rate of base station #1 is impaired, base station #2 generates first indication information, and base station #2 sends the first indication to base station #1 information. The first indication information is used to instruct base station #1 to communicate with UE #1 based on the first mode.

It should be understood that when the HARQ process on base station #1 is not restricted, and/or the downlink rate of base station #1 is not impaired, base station #2 does not send the first indication information to base station #1.

Optionally, as a second possible situation, before S210, the method further includes S203:

S203, base station #1 determines whether to communicate with UE #1 based on the first mode according to the first information.

That is, when base station #1 determines that the HARQ process on base station #1 is limited and/or determines that the downlink rate is impaired according to the first information, base station #1 determines to communicate with UE#1 based on the first mode. When base station #1 determines that the HARQ process on base station #1 is not restricted and/or determines that the downlink rate is not impaired according to the first information, base station #1 determines not to communicate with UE#1 based on the first mode .

It should be understood that, in the case that base station #1 determines not to communicate with UE#1 based on the first mode, base station #1 communicates with UE#1 based on the second mode.

Optionally, the method also includes S230:

S230. In a CA scenario, when the HARQ process on base station #2 is limited and/or the downlink rate is impaired, base station #2 communicates with UE #1 based on the first mode.

In one example, base station #2 may determine whether the HARQ process on base station #2 is limited and/or whether the downlink rate is impaired according to one or more items of the following information:

The processing delay of UE#1, the transmission delay between UE#1 and base station #2, and the processing delay of base station #2.

It should be understood that, when the HARQ process on base station #2 is not limited, and/or the downlink rate is not impaired, base station #2 communicates with UE #1 based on the second mode.

According to the foregoing method, FIG. 6 shows a communication device provided in an embodiment of the present application, where the communication device includes a transceiver unit 601 and a processing unit 602 .

Wherein, the transceiver unit 601 may be used to implement a corresponding communication function. The transceiver unit 601 may also be called a communication interface or a communication unit. The processing unit 602 may be configured to perform processing operations.

Optionally, the device further includes a storage unit, which can be used to store instructions and/or data, and the processing unit 602 can read instructions and/or data in the storage unit, so that the device implements the above-mentioned method embodiments. action of the device.

As a first design, the apparatus may be the first network device in the foregoing embodiments, or may be a component (such as a chip) of the first network device.

Wherein, the transceiver unit is configured to communicate with the terminal device based on the first mode.

In one case, the transceiving unit is further configured to receive first indication information from the second network device, where the first indication information is used to instruct the first network device to communicate with the terminal device based on the first mode.

In another case, the processing unit is configured to determine whether to communicate with the terminal device based on the first mode according to the first information.

In another case, the transceiver unit is further configured to transmit the same transport block TB in multiple time slots occupied by one HARQ process.

In another case, the transceiver unit is further configured to transmit different transport blocks TB in multiple time slots occupied by one HARQ process.

As a second design, the apparatus may be the second network device in the foregoing embodiments, or may be a component (such as a chip) of the second network device.

Wherein, the processing unit is configured to generate first indication information, and the first indication information is used to instruct the first network device to communicate with the terminal device based on the first mode; the transceiver unit is configured to send the first indication information to the first network device.

In one case, the processing unit is further configured to determine whether the HARQ process on the first network device is limited according to the first information, and/or determine whether the downlink rate of the first network device is impaired.

In another case, the transceiver unit is further configured to communicate with the terminal device based on the second mode.

It should be understood that the specific process of each unit performing the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.

It should also be understood that the means herein are embodied in the form of functional units. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (such as a shared processor, a dedicated processor, or a group processor, etc.) and memory, incorporated logic, and/or other suitable components to support the described functionality. In an optional example, those skilled in the art can understand that the device may specifically be the first network element in the above embodiments, and may be used to execute each process corresponding to the first network element in the above method embodiments and/or steps, or, the device may specifically be the network management network element in the above embodiments, and may be used to execute the various processes and/or steps corresponding to the network management network elements in the above method embodiments. In order to avoid repetition, it is not repeated here repeat.

The above-mentioned communication device has the function of implementing the corresponding steps performed by the device in the above-mentioned method. The functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver computer), and other units, such as a processing unit, may be replaced by a processor to respectively perform the sending and receiving operations and related processing operations in each method embodiment.

In addition, the above-mentioned transceiver unit 601 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.

It should be noted that the device in FIG. 6 may be the device in the foregoing method embodiment, or may be a chip or a chip system, for example: a system on chip (system on chip, SoC). Wherein, the transceiver unit may be an input-output circuit or a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip. It is not limited here.

The embodiment of the present application also provides a communication device, as shown in FIG. 7 , including: a processor 701 and a communication interface 702 . The processor 701 is configured to execute computer programs or instructions stored in the memory 703, or read data stored in the memory 703, so as to execute the methods in the above method embodiments. Optionally, there are one or more processors 701 . The communication interface 702 is used for receiving and/or sending signals. For example, the processor 701 is configured to control the communication interface 702 to receive and/or send signals.

Optionally, as shown in FIG. 7 , the communication device further includes a memory 703, and the memory 703 is used to store computer programs or instructions and/or data. The memory 703 can be integrated with the processor 701, or can also be set separately. Optionally, there are one or more memories 703 .

Optionally, the processor 701, the communication interface 702, and the memory 703 are connected to each other via a bus 704; the bus 704 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA ) bus, etc. The above bus 704 can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 7 , but it does not mean that there is only one bus or one type of bus.

As a solution, the communication device is used to implement the operations performed by the first network device or the second network device in the above method embodiments.

For example, the processor 701 is configured to execute the computer programs or instructions stored in the memory 703, so as to implement related operations of the first network device in each method embodiment above.

In another example, the processor 701 is configured to execute the computer program or instruction stored in the memory 703, so as to implement related operations of the second network device in each method embodiment above.

It should be understood that the processor (such as the processor 701) mentioned in the embodiment of the present application may be a central processing unit (central processing unit, CPU), a network processor (network processor, NP) or a combination of CPU and NP. The processor may further include hardware chips. The aforementioned hardware chip may be an application-specific integrated circuit (application-specific integrated circuit, ASIC), a programmable logic device (programmable logic device, PLD) or a combination thereof. The aforementioned PLD may be a complex programmable logic device (complex programmable logic device, CPLD), a field-programmable gate array (field-programmable gate array, FPGA), a general array logic (generic array logic, GAL) or any combination thereof.

It should also be understood that the memory (such as the memory 703 ) mentioned in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM), which acts as external cache memory.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A communication method, characterized in that, comprising:

In the CA scenario of carrier aggregation, the first network device communicates with the terminal device based on the first mode. The first mode is that before the multiple HARQ processes are all used up, the existing At least one HARQ process, a mode in which each HARQ process in the at least one HARQ process occupies multiple time slots, wherein the first network device is a network device that does not receive the physical uplink control channel PUCCH sent by the terminal device .
The method according to claim 1, characterized in that,

The method also includes:

The first network device receives first indication information from a second network device, where the first indication information is used to instruct the first network device to communicate with the terminal device based on the first mode;

Wherein, the second network device is a network device that receives the PUCCH sent by the terminal device.
The method according to claim 1, characterized in that,

The method also includes:

The first network device determines whether to communicate with the terminal device based on the first mode according to the first information; the first information includes one or more of the following:

The processing delay of the terminal device, the transmission delay between the terminal device and the second network device, the processing delay of the second network device, the distance between the second network device and the first network device The difference in time domain configuration between the cell corresponding to the second network device and the cell corresponding to the first network device;

Wherein, the second network device is a network device that receives the PUCCH sent by the terminal device.
The method according to any one of claims 1-3, characterized in that,

The plurality of time slots are consecutive time slots; or,

The multiple time slots are discontinuous time slots.
The method according to any one of claims 1-4, characterized in that,

The method also includes:

The first network device transmits the same transport block TB in the plurality of time slots.
The method according to claim 5, characterized in that,

The plurality of time slots correspond to different redundancy versions RV of the same TB.
The method according to any one of claims 1-4, characterized in that,

The method also includes:

The first network device transmits different TBs in the plurality of time slots.
The method according to claim 7, characterized in that,

The plurality of time slots correspond to the same RV of the different TBs.
A communication method, characterized in that, comprising:

In the carrier aggregation CA scenario, the second network device generates first indication information, where the first indication information is used to instruct the first network device to communicate with the terminal device based on the first mode;

The second network device sends the first indication information to the first network device;

Wherein, the first mode is that at least one HARQ process exists in the multiple HARQ processes before all the multiple hybrid automatic repeat request HARQ processes are used up, and each HARQ process in the at least one HARQ process occupies more than one HARQ process. time slot mode, the first network device is a network device that does not receive the PUCCH sent by the terminal device, and the second network device is a network device that receives the PUCCH sent by the terminal device.
The method according to claim 9, characterized in that,

The method also includes:

The second network device determines whether the HARQ process on the first network device is limited according to the first information, and/or determines whether the downlink rate of the first network device is impaired;

The first information includes one or more of the following:

The processing delay of the terminal device, the transmission delay between the terminal device and the second network device, the processing delay of the second network device, the distance between the second network device and the first network device The difference in time domain configuration between the cell corresponding to the second network device and the cell corresponding to the first network device;

The first indication information is generated when the HARQ process on the first network device is limited, and/or the downlink rate of the first network device is impaired.
The method according to claim 9 or 10, characterized in that,

The method also includes:

The second network device communicates with the terminal device based on a second mode;

The second mode is a mode in which each HARQ process in the multiple HARQ processes occupies one time slot before all the multiple HARQ processes are used up.
A first network device, characterized by comprising:

A transceiver unit, and a processing unit connected to the transceiver unit;

In the carrier aggregation CA scenario, the transceiver unit is configured to communicate with the terminal device based on a first mode, and the first mode is that before the multiple HARQ processes are all used up, the multiple HARQ There is at least one HARQ process in the process, and each HARQ process in the at least one HARQ process occupies a mode of multiple time slots, wherein the first network device does not receive the physical uplink control channel PUCCH sent by the terminal device network equipment.
The apparatus according to claim 12, characterized in that,

The transceiving unit is further configured to receive first indication information from a second network device, where the first indication information is used to instruct the first network device to communicate with the terminal device based on the first mode;

Wherein, the second network device is a network device that receives the PUCCH sent by the terminal device.
The apparatus according to claim 12, characterized in that,

The processing unit is configured to determine whether to communicate with the terminal device based on the first mode according to first information; the first information includes one or more of the following:

The processing delay of the terminal device, the transmission delay between the terminal device and the second network device, the processing delay of the second network device, the distance between the second network device and the first network device The difference in time domain configuration between the cell corresponding to the second network device and the cell corresponding to the first network device;

Wherein, the second network device is a network device that receives the PUCCH sent by the terminal device.
Apparatus according to any one of claims 12-14, characterized in that

The plurality of time slots are consecutive time slots; or,

The multiple time slots are discontinuous time slots.
Apparatus according to any one of claims 12-15, characterized in that

The transceiver unit is further configured to transmit the same transport block TB in the multiple time slots.
The apparatus according to claim 16, characterized in that,

The plurality of time slots correspond to different redundancy versions RV of the same TB.
Apparatus according to any one of claims 12-15, characterized in that

The transceiver unit is further configured to transmit different TBs in the multiple time slots.
The apparatus according to claim 18, characterized in that,

The plurality of time slots correspond to the same RV of the different TBs.
A second network device, characterized in that it includes:

A transceiver unit, and a processing unit connected to the transceiver unit;

In a carrier aggregation CA scenario, the processing unit is configured to generate first indication information, where the first indication information is used to instruct the first network device to communicate with the terminal device based on the first mode;

The transceiving unit is configured to send the first indication information to the first network device;

Wherein, the first mode is that at least one HARQ process exists in the multiple HARQ processes before all the multiple hybrid automatic repeat request HARQ processes are used up, and each HARQ process in the at least one HARQ process occupies more than one HARQ process. time slot mode, the first network device is a network device that does not receive the PUCCH sent by the terminal device, and the second network device is a network device that receives the PUCCH sent by the terminal device.
The apparatus according to claim 20, characterized in that,

The processing unit is further configured to determine whether the HARQ process on the first network device is limited according to the first information, and/or determine whether the downlink rate of the first network device is impaired;

The first information includes one or more of the following:

The processing delay of the terminal device, the transmission delay between the terminal device and the second network device, the processing delay of the second network device, the distance between the second network device and the first network device The difference in time domain configuration between the cell corresponding to the second network device and the cell corresponding to the first network device;

The first indication information is generated when the HARQ process on the first network device is limited, and/or the downlink rate of the first network device is impaired.
Apparatus according to claim 20 or 21, characterized in that,

The transceiver unit is further configured to communicate with the terminal device based on the second mode;

The second mode is a mode in which each HARQ process in the multiple HARQ processes occupies one time slot before all the multiple HARQ processes are used up.
A communication device, characterized by comprising: a communication interface and a processor, where the processor is configured to execute computer programs or instructions, so that the communication device executes the method according to any one of claims 1-11.
A computer-readable storage medium, characterized in that it includes a computer program or an instruction, and when the computer program or the instruction is run on a computer, the computer executes the computer program described in any one of claims 1-11. Methods.
A computer program product, characterized by comprising instructions, which, when run on a computer, cause the computer to execute the method according to any one of claims 1-11.