CN112205051B

CN112205051B - Method and apparatus for determining transport block size, TBS

Info

Publication number: CN112205051B
Application number: CN201880094087.XA
Authority: CN
Inventors: 吴作敏
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2023-03-21
Anticipated expiration: 2038-12-04
Also published as: CN112205051A; WO2020113424A1

Abstract

The application discloses a method and equipment for determining a Transport Block Size (TBS), which can reasonably determine the TBS on an unlicensed frequency band so as to accurately receive channels on different resources. The method comprises the following steps: the method comprises the steps that terminal equipment obtains a quantization coefficient and first information, wherein the first information comprises at least one of the resource quantity, the modulation order and the code rate which can be used for channel transmission; and the terminal equipment determines a first TBS according to the quantization coefficient and the first information.

Description

Method and apparatus for determining transport block size, TBS

Technical Field

The embodiments of the present application relate to the field of communications, and in particular, to a method and apparatus for determining a TBS.

Background

In a 5G system, or New Radio (NR) system, data transmission over an unlicensed spectrum is supported. When a communication device communicates in an unlicensed frequency band, the principle of Listen Before Talk (LBT) is required. That is, before signal transmission is performed on the channel of the unlicensed frequency band, channel detection needs to be performed, and signal transmission can be performed only after the channel use right is obtained.

Therefore, during channel transmission of the unlicensed spectrum, the probability that the communication device obtains channel usage rights for the following time slot is higher than the probability that the communication device obtains channel usage rights for the preceding time slot. For example, channel usage rights may not be obtained in the first few symbols of a resource scheduled by the network for transmission of a channel, and are obtained for channel transmission only from the following symbols. Considering the uncertainty of obtaining the channel use right in the unlicensed frequency band, how to reasonably determine the Transport Block Size (TBS or TB Size) by the communication device becomes an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides a method and equipment for determining a Transport Block Size (TBS), which can reasonably determine the TBS on an unlicensed frequency band so as to improve the efficiency of channel transmission.

In a first aspect, a method for determining a transport block size, TBS, is provided, comprising: the method comprises the steps that terminal equipment obtains a quantization coefficient and first information, wherein the first information comprises at least one of the resource quantity, the modulation order and the code rate which can be used for channel transmission; and the terminal equipment determines a first TBS according to the quantization coefficient and the first information.

In a second aspect, a method of determining a transport block size, TBS, is provided, comprising: the network equipment acquires a quantization coefficient; and the network equipment determines the first TBS according to the quantization coefficient and first information, wherein the first information includes at least one of a resource number, a modulation order and a code rate that can be used for channel transmission.

In a third aspect, a terminal device is provided, where the terminal device may perform the method in the first aspect or any optional implementation manner of the first aspect. In particular, the terminal device may comprise functional modules for performing the method of the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, there is provided a network device that may perform the method of the second aspect or any alternative implementation manner of the second aspect. In particular, the network device may comprise functional modules for performing the method of the second aspect or any possible implementation of the second aspect.

In a fifth aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method of the first aspect or any possible implementation manner of the first aspect.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method of the second aspect or any possible implementation manner of the second aspect.

In a seventh aspect, a chip is provided for implementing the first aspect or the method in any possible implementation manner of the first aspect. In particular, the chip comprises a processor for calling and running a computer program from a memory, such that a device in which the chip is installed performs the method as described above in the first aspect or any possible implementation manner of the first aspect.

In an eighth aspect, a chip is provided for implementing the method of the second aspect or any possible implementation manner of the second aspect. In particular, the chip comprises a processor for calling and running a computer program from a memory, such that a device in which the chip is installed performs the method as described above in the second aspect or any possible implementation of the second aspect.

A ninth aspect provides a computer readable storage medium storing a computer program for causing a computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

A tenth aspect provides a computer-readable storage medium for storing a computer program for causing a computer to perform the method of the second aspect or any possible implementation manner of the second aspect.

In an eleventh aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

In a twelfth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of the second aspect or any possible implementation manner of the second aspect.

In a thirteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

In a fourteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the second aspect or any possible implementation of the second aspect.

In a fifteenth aspect, a communication system is provided that includes a network device and a terminal device.

Wherein the network device is configured to: obtaining a quantization coefficient and first information, wherein the first information comprises at least one of the resource quantity, the modulation order and the code rate which can be used for channel transmission; and the terminal equipment determines a first TBS according to the quantization coefficient and the first information.

Wherein the terminal device is configured to: obtaining a quantization coefficient; determining the first TBS according to the quantization coefficient and first information, wherein the first information comprises at least one of a number of resources available for channel transmission, a modulation order, and a code rate.

According to the technical scheme, when the TBS is determined on the unlicensed frequency band, besides the information such as the resource quantity, the modulation order and the code rate, the quantization coefficient is introduced, the quantization coefficient is considered when the TBS is determined, and the TBS used for carrying out rate matching on channel transmission under different conditions is adjusted through the quantization coefficient, so that the efficiency of the channel transmission can be improved.

Drawings

Fig. 1 is a schematic diagram of a possible wireless communication system to which an embodiment of the present application is applied.

Fig. 2 is a schematic diagram of resources on an unlicensed spectrum to obtain channel usage rights.

Fig. 3 is a schematic flow chart of a method for determining TBS according to an embodiment of the present application.

Fig. 4 is a resource diagram for determining a TBS according to an embodiment of the present application.

Fig. 5 is a schematic flow chart of a method for determining TBS according to an embodiment of the present application.

Fig. 6 is a schematic flow chart of a method of determining TBS according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a network device of an embodiment of the present application.

Fig. 9 is a schematic configuration diagram of a communication apparatus according to an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a chip of an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication system of an embodiment of the present application.

Detailed Description

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

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD) System, an Advanced Long Term Evolution (LTE-a) System, a New Radio (New Radio, NR) System, an Evolution System of the NR System, an LTE (LTE-based Access to unlicensed spectrum, LTE-U) System on an unlicensed Frequency band, an NR (NR-based Access to unlicensed spectrum, NR-U) System on an unlicensed Frequency band, a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a Wireless Local Area Network (WLAN), a Wireless Fidelity (WiFi), a next-generation communication System, or other communication systems.

Generally, the conventional Communication system supports a limited number of connections and is easy to implement, however, with the development of Communication technology, the mobile Communication system will support not only conventional Communication but also, for example, device-to-Device (D2D) Communication, machine-to-Machine (M2M) Communication, machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, and the embodiments of the present application can also be applied to these Communication systems.

In an embodiment, the communication system in the embodiment of the present application may be applied in Carrier Aggregation (CA), dual Connectivity (DC), independent (SA) networking, and other scenarios.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The wireless communication system 100 may include a network device 110. Network device 110 may be a device that communicates with a terminal device. Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. In an embodiment, the Network device 100 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, a Network side device in an NR system, a wireless controller in a Cloud Radio Access Network (CRAN), or a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network side device in a next generation Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, and the like.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 may be mobile or stationary. In an embodiment, terminal Equipment 120 may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User device. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN, etc. In an embodiment, the terminal devices 120 may also perform direct terminal-to-Device (d 2 d) communication.

The network device 110 may provide a service for a cell, and the terminal device 120 communicates with the network device 110 through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device 110 (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include, for example, a Metro cell (Metro cell), a Micro cell (Micro cell), a Pico cell (Pico cell), a Femto cell (Femto cell), and the like, and the Small cells have characteristics of Small coverage and low transmission power, and are suitable for providing a high-rate data transmission service.

Fig. 1 exemplarily shows one network device and two terminal devices, and in an embodiment, the wireless communication system 100 may include a plurality of network devices and each network device may include other numbers of terminal devices within a coverage area thereof, which is not limited in this embodiment. The wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

In the unlicensed frequency band, the communication device may perform continuous transmission in multiple time slots after channel detection is successful, and the probability of obtaining the channel usage right in the following time slot by the communication device is higher than the probability of obtaining the channel usage right in the preceding time slot, for example, as shown in fig. 2, the resources that the network schedules for expecting to transmit a channel include time slot n, time slot n +1, time slot n +2, and time slot n +3. However, the channel use weight may not be obtained on the first 8 symbols in the slot n, and the channel use weight is obtained from the 9 th symbol. Wherein, in fig. 2, one slot includes 7 small blocks, each of which includes 2 symbols.

Assuming that a network device plans to transmit a channel in a time slot n, if the TBS of the channel transmitted in the time slot n is determined in the existing manner, since the channel is planned to be transmitted using all time domain resources of the time slot n, but when the channel is actually transmitted, the first 8 symbols of the time slot n cannot be used for transmitting the channel due to channel detection failure, a situation may occur in which a Transport Block (TB) of a larger TBS uses smaller resources for transmission (i.e., the TB does not match its corresponding transmission resources), so that the probability of correct demodulation of the TB transmitted in the time slot n is reduced. For channels transmitted on slot n +1, slot n +2 and slot n +3, the probability that their TBS does not match their corresponding transmission resource is lower, since the later the position is, the higher the probability that they obtain the channel usage right.

It should be understood that if a channel is scheduled to be transmitted through multiple sub-bands of the frequency domain, and each sub-band is independently used for channel detection, a situation may also occur where the channel is scheduled to be transmitted using resources on multiple sub-bands, but only resources on a part of the multiple sub-bands can be used for transmission of the channel during actual transmission (e.g., another sub-band in the multiple sub-bands cannot be used for transmission of the channel due to channel detection failure), such that the resources used for transmission of the channel do not match the TBs transmitted on the channel.

In the embodiment of the application, when the TBS is determined on the unauthorized frequency band, besides using information such as the resource number, the modulation order, the code rate and the like, a quantization coefficient is introduced, the quantization coefficient is considered when the TBS is determined, and the TBS used for carrying out rate matching on channel transmission under different conditions is adjusted through the quantization coefficient, so that a more reasonable TBS is obtained, and the efficiency of the channel transmission is improved.

Fig. 3 is a schematic flow chart of a method 300 for determining a TBS according to an embodiment of the present application. The method described in fig. 3 may be performed by a terminal device, such as terminal device 120 shown in fig. 1, or a network device, such as network device 110 shown in fig. 1. As shown in fig. 3, the method 300 of determining a TBS may include some or all of the following steps. Wherein:

in 310, quantized coefficients and first information are obtained.

Wherein the first information includes at least one of a number of resources available for channel transmission, a modulation order, and a code rate.

At 320, a first TBS is determined based on the quantized coefficients and the first information.

Generally, the terminal device and the network device may determine a Modulation order and a code rate according to a Modulation and Coding Scheme (MCS), for example, obtain the Modulation order and the code rate through table lookup according to an MCS index, and determine a TBS for channel transmission according to information such as the number of resources available for channel transmission, the Modulation order, and the code rate. However, in the unlicensed frequency band, in the channel resources scheduled by the network or configured semi-statically, a part of the time domain and/or frequency domain resources may not be used for channel transmission due to channel access failure, and so on, and it is not reasonable if the TBS is calculated for rate matching according to that the whole channel resources are normally used for channel transmission.

In this embodiment, the terminal device and the network device need to obtain not only the first information but also a quantized coefficient, and determine the first TBS based on the first information and the quantized coefficient. In the channel resources scheduled by the network equipment or configured in a semi-static manner, when the conditions of channel transmission are different, the corresponding quantization coefficients can also be different, and different quantization coefficients are used for processing the TBS so as to perform rate matching on the channels transmitted under different conditions, so that a more reasonable TBS can be obtained, and the efficiency of channel transmission is improved.

In an embodiment, the resource amount includes at least one of the following information: a number of Physical Resource Blocks (PRBs), a number of symbols, a Resource overhead within the PRBs, a number of available Resource Elements (REs), a number of available REs within each PRB, and the like.

Wherein the number of symbols comprises, for example, the number of time domain symbols available for transmission of the current data channel. The resource overhead within the PRB includes, for example, the number of REs or the number of symbols for transmitting a control channel or a demodulation reference Signal (DMRS) related to the data channel. In an embodiment, the resource overhead within the PRB is standard predetermined or indicated to the terminal device by the network device through at least one of radio resource control RRC signaling, physical layer signaling, and medium access control MAC signaling.

These information are used to determine the number of REs used for transmitting the current data channel, and the number of REs is used to determine the TBS corresponding to the data channel. For example, the number of REs may be used to determine a second TBS, the second TBS = the number of available REs × the code rate × the modulation order × the number of transmission layers of the data channel.

In one embodiment, determining the first TBS according to the quantized coefficients and the first information at 320 includes: the terminal device determines the first TBS according to the quantization coefficient and the first information, including: calculating a second TBS according to the code rate, the modulation order and the resource quantity; and quantizing the second TBS according to the quantization coefficient to obtain the first TBS.

Alternatively, in an embodiment, determining the first TBS according to the quantized coefficients and the first information at 320 includes: quantizing the code rate according to the quantization coefficient; and determining the first TBS according to the quantized code rate, the modulation order and the resource quantity.

Alternatively, in an embodiment, determining the first TBS according to the quantized coefficients and the first information at 320 includes: quantizing the resource quantity according to the quantization coefficient; and the terminal equipment determines the first TBS according to the quantized resource quantity, the code rate and the modulation order.

Therefore, in the unlicensed frequency band, when the terminal device and the network device determine the TBS, the terminal device and the network device use information such as the number of resources, the modulation order, and the code rate, and also consider the quantization coefficient, and adjust the TBS used for performing rate matching on channel transmission under different conditions through the quantization coefficient, so as to obtain a more reasonable TBS, thereby improving the efficiency of channel transmission.

In this embodiment, the channel corresponding to the first TBS indicates that the size of the TB transmitted on the channel is the first TBS, or that the data transmitted on the channel is obtained by performing coding, modulation, and rate matching according to the TB determined by the first TBS. The Channel corresponding to the first TBS may include a Physical Downlink Channel or a Physical Uplink Channel, such as a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH).

For downlink transmission scheduled by the network device, if the first TBS corresponds to a first PDSCH transmitted through a first time unit, the quantization coefficients satisfy:

if the first time unit comprises at least one time unit of the initial M time units in the first downlink transmission opportunity, the quantized coefficients are less than 1, and M is a positive integer; and/or the presence of a gas in the gas,

the quantized coefficient is equal to 1 if the first time unit does not include the time unit of the at least one of the M time units in the first downlink transmission opportunity.

The time unit may be a symbol, a slot, or a subframe, or may be a fixed duration. The network device schedules the first PDSCH to be transmitted through the first time unit, including the network device scheduling the first PDSCH to be transmitted through all time resources on the first time unit, or the network device scheduling the first PDSCH to be transmitted through partial time resources on the first time unit. For example, assume that the first time unit includes 2 slots (slot 0 and slot 1). The network device may schedule the first PDSCH to transmit through all time resources in the time slot 0 and the time slot 1, and may also schedule the first PDSCH to transmit through all time resources in the time slot 1 and the time resource in the second half of the time slot 0.

It should be understood that, in the unlicensed frequency band, one downlink transmission opportunity includes a plurality of consecutive downlink time units that can be used by the network device after the channel detection is successful. When the network device plans to schedule a plurality of consecutive downlink time unit transmissions, the probability that the network device is capable of a later time unit transmission of the plurality of downlink time units is higher than the probability that the network device is capable of a former time unit transmission of the plurality of downlink time units. The transmission of the partial resources may be performed in order to increase the probability of channel transmission over the preceding time unit.

In an embodiment, the network device needs to consider a data processing time when preparing data to be transmitted in a certain time unit, or a first TBS determined by the network device in a certain time unit, for channel transmission in a time unit after the time unit. For example, when the time unit is a time slot, the network device determines the first TBS in the time slot n for channel transmission in the time slot n + 2.

In one embodiment, the value of M is determined based on the time delay between the time the network device prepares the data and the time the data is actually transmitted. For example, if the delay between the time when the network device prepares data and actually transmits the data is 2 time units, then M takes on 2 time units.

In an embodiment, the value of M is preset by a standard or indicated to the terminal device by the network device through at least one of RRC signaling, physical layer signaling, and MAC signaling.

In an embodiment, if the first time unit includes at least one time unit of the initial M time units in the first downlink transmission opportunity, the quantization factor smaller than 1 is predetermined by a standard or indicated to the terminal device by the network device through at least one of RRC signaling, physical layer signaling, and MAC signaling. For example, the quantization coefficient standard is preset to 0.5.

In an embodiment, if the first time unit includes at least one time unit of the initial M time units in the first downlink transmission opportunity, the quantization coefficient is determined according to the number of candidate start points or positions of the candidate start points included in the time resource occupied by the first time unit or the first PDSCH on the first time unit. For example, the time resource occupied by the first time unit or the first PDSCH on the first time unit includes only one candidate starting point, and the quantization coefficient is 1. For another example, the first PDSCH is transmitted through all 14 symbols over slot n, wherein the 0 th symbol and the 7 th symbol over the 14 symbols can be used to start transmitting the first PDSCH, and the quantization coefficient is determined to be 0.5 according to two candidate starting points and the positions of the two candidate starting points are to divide the 14 symbols equally. For another example, the predetermined quantization coefficient set is {0.5,0.75}, and if the number of candidate starting points corresponding to the first PDSCH is two, the quantization coefficient is 0.75, and if the number of candidate starting points corresponding to the first PDSCH is four, the quantization coefficient is 0.5.

Preferably, M =1 slot or 2 slots. This takes into account that typically a network device has a 2 slot delay from preparing the data to actually transmitting the data. For example, a PDSCH2 to be transmitted on a slot n +2 is prepared on a slot n, and a PDSCH 3 to be transmitted on a slot n +3 is prepared on a slot n + 1.

For example, as shown in fig. 4, the channel resources scheduled by the network device include time slot n to time slot n +3, each time slot may be used for transmitting one PDSCH, for example, time slot n is used for transmitting PDSCH 0, time slot n +1 is used for transmitting PDSCH 1, time slot n +2 is used for transmitting PDSCH2, and time slot n +3 is used for transmitting PDSCH 3. The network device has a delay of 2 time slots from the preparation of the data to the actual transmission of the data, i.e., PDSCH 0 is prepared by the network device in time slot n-2, PDSCH 1 is prepared in time slot n-1, PDSCH2 is prepared in time slot n, and PDSCH 3 is prepared in time slot n + 1.

Assuming that M =2, where each time unit includes one slot, the first M time units of the transmission opportunity, i.e. the first 2 slots after obtaining the channel usage right, where the first slot of the first 2 slots of the transmission opportunity includes the case where the channel usage right is obtained on a part of symbols within the slot, or the case where the channel usage right is obtained on all symbols within the slot.

When the network device prepares the data of the PDSCH2 to be transmitted on the first time unit, that is, the time slot n +2, within the time of the time slot n, as shown in fig. 3, the network device obtains the channel usage right within the time slot n, and since the time slot n +2 does not include the first 2 time slots (the time slot n and the time slot n + 1) of the first downlink transmission opportunity, the quantization coefficient corresponding to the PDSCH2 transmitted on the time slot n +2 may be equal to 1.

When the network device prepares the data of the PDSCH 3 to be transmitted on the time slot n +3 within the time of the time slot n +1, the network device has already obtained the channel usage right in the time slot n, and since the time slot n +3 does not include the first 2 time slots (the time slot n and the time slot n + 1) of the first downlink transmission opportunity, the quantization coefficient corresponding to the PDSCH 3 transmitted on the time slot n +3 may also be equal to 1.

If the channel use weight is not obtained in the time slot n, the channel use weight may be obtained in the following time slots such as the time slot n +1, and then when the network device prepares the data of the PDSCH2 to be sent on the time slot n +2 in the time slot n, the data of the time slot n +2 necessarily belong to the first two time slots of the transmission opportunity, and then the quantization coefficient corresponding to the PDSCH2 sent on the time slot n +2 should be smaller than 1.

Further, the network device prepares data to be sent in time slot n +4 within time slot n +2, and then if the network device in time slot n +2 obtains the channel use right, the quantization coefficient corresponding to PDSCH 4 sent in time slot n +4 may be equal to 1, and if the network device in time slot n +2 does not obtain the channel use right, the quantization coefficient corresponding to PDSCH 4 sent in time slot n +4 is smaller than 1.

At this time, in an embodiment, as shown in fig. 5, the method further includes 510 to 540.

At 510, the network device sends second indication information to the terminal device.

Wherein the second indication information is used for indicating a second resource.

The second resource is a resource actually used for transmitting the first PDSCH, and the first resource is a resource scheduled by the network device for transmitting the first PDSCH.

Wherein the number of resources is determined according to the first resource, or the number of resources used for determining the first TBS is the number of resources available for the first PDSCH transmission in the first resource.

The size of the second resource is less than or equal to the size of the first resource.

In 520, the terminal device receives the second indication information sent by the network device.

In 530, the network device sends the first PDSCH according to the first TBS on the second resources.

In 540, the terminal device receives the first PDSCH on the second resource according to the first TBS.

That is, the number of resources used in determining the first TBS, the number of resources scheduled for the network device to transmit the first PDSCH, for example, the number of REs, and in actual transmission, the channel usage right needs to be obtained before transmission, so the size of the second resource for actually transmitting the first PDSCH is smaller than or equal to the size of the first resource.

In an embodiment, for uplink transmission, if the first TBS corresponds to a first PUSCH, the first PUSCH being a PUSCH of a plurality of consecutive PUSCHs, the quantization factor satisfies:

if the first PUSCH is a PUSCH in the first N PUSCHs in the plurality of continuous PUSCHs, the quantization coefficient is less than 1, N is a positive integer; and/or the presence of a gas in the gas,

the quantization factor is equal to 1 if the first PUSCH is a PUSCH subsequent to the N PUSCHs of the plurality of consecutive PUSCHs.

In an embodiment, the value of N is preset by a standard or determined by the terminal device according to at least one of RRC signaling, physical layer signaling, and MAC signaling sent by the network device.

In an embodiment, if the first TBS corresponds to a first PUSCH, the quantization factor may be determined according to a transmission mode of the first PUSCH or a number of candidate starting points included in a time resource occupied by the first PUSCH on the first time unit. For example, the transmission mode of the first PUSCH includes a case where an actual transmission resource is not allowed to occur smaller than a transmission resource scheduled by the network device, and the quantization coefficient is 1. As another example, the transmission mode of the first PUSCH includes allowing for a case where actual transmission resources are smaller than transmission resources scheduled by the network device, the quantization factor being smaller than 1. For another example, the time resource occupied by the first PUSCH in the first time unit includes only one candidate starting point, and the quantization coefficient is 1. For another example, the time resource occupied by the first PUSCH in the first time unit includes more than one candidate starting point, and the quantization coefficient is less than 1.

It should be understood that the first PUSCH may be a PUSCH dynamically scheduled by a network device, or may be a PUSCH for which the network device semi-statically configures resources, and the terminal device selects resources for transmission according to a requirement, which is not limited in the present application.

In an embodiment, the multiple consecutive PUSCHs are PUSCHs scheduled by the network device through one uplink grant information.

At this time, in an embodiment, as shown in fig. 6, the method further includes 610 and 620.

In 610, the terminal device sends the first PUSCH to the network device on the fourth resource according to the first TBS.

The fourth resource is a resource actually used for transmitting the first PUSCH, and the third resource is a resource scheduled by the network device or configured semi-statically for transmitting the first PUSCH.

Wherein the number of resources is determined according to the third resource, or the number of resources used for determining the first TBS is the number of resources available for the first PUSCH transmission in the third resource.

The size of the fourth resource is less than or equal to the size of the third resource.

In 620, the network device receives the first PUSCH transmitted by the terminal device on the fourth resource according to the first TBS.

In an embodiment, when the method is executed by a network device, the method further comprises: the network equipment sends the first indication information to the terminal equipment. Wherein the first indication information is used for indicating the quantized coefficients.

Accordingly, the method, when executed by a terminal device, in 310, obtaining the quantized coefficients, includes: and the terminal equipment receives the first indication information sent by the network equipment. Wherein the first indication information is used for the terminal device to determine the quantized coefficients.

The first indication information may be, for example, physical layer signaling, RRC signaling, MAC signaling, or the like.

Further, in an embodiment, the first indication information may also be used to indicate the first information, for example, to indicate the number of resources available for channel transmission, MCS, modulation order, code rate, and the like.

The first Indication information may be, for example, a Slot Frame Indication (SFI), uplink Grant information (UL Grant), or downlink Grant information (DL Grant). The uplink grant information may be used to schedule the first PUSCH, and the downlink grant information may be used to schedule the first PDSCH.

The quantized coefficient in the embodiment of the present application may be one quantized coefficient in a set of quantized coefficients.

In an embodiment, in 320, the network device or the terminal device may determine the quantized coefficient in the set of quantized coefficients.

For example, the network device may determine the quantized coefficient in the quantized coefficient set and indicate the quantized coefficient to the terminal device through the first indication information.

For another example, the network device may send third indication information to the terminal device, where the third indication information indicates the quantized coefficient set. And the terminal equipment receives the third indication information sent by the network equipment and determines the quantization coefficient set according to the third indication information. The third indication information may be, for example, physical layer signaling, radio Resource Control (RRC) signaling, media Access Medium (MAC) signaling, and the like. For example, the network device configures two sets of quantization coefficients with different ranges, for example, the quantization coefficient in one set of quantization coefficients is greater than 0 and less than or equal to 1, and the quantization coefficient in the other set of quantization coefficients is greater than 0 and less than or equal to 2, and the network device indicates which set of quantization coefficients is used by the terminal device according to the third indication information.

Alternatively, the quantized coefficient set may be pre-agreed between the network device and the terminal device and pre-stored in the device, for example, the quantized coefficient set is agreed in a protocol.

In an embodiment, after the terminal device obtains the quantized coefficient set, the quantized coefficient may be selected from the quantized coefficient set according to channel quality. For example, the quantization coefficients in the quantization coefficient set are greater than 0 and less than or equal to 1, and when the terminal device detects poor channel quality, a smaller quantization coefficient is selected, and when the terminal device detects poor channel quality, a larger quantization coefficient is selected.

In an embodiment, the terminal device may indicate the quantized coefficients to the network device after determining the quantized coefficients.

In one possible implementation, the method further includes: the terminal device sends Uplink Control Information (UCI) to the network device, where the UCI includes indication Information for determining the quantization coefficient.

Accordingly, in one embodiment, in 310, obtaining quantized coefficients comprises: the network equipment receives UCI, and the UCI comprises indication information used for determining the quantized coefficients.

That is, the terminal device notifies the network device of the quantization coefficient selected by itself through the UCI, so that the network device determines the quantization coefficient according to the received UCI.

In an embodiment, the UCI is carried in a first PUSCH corresponding to the first TBS.

That is, the UCI information is transmitted along with the channel in the first PUSCH, and the data in the first PUSCH is rate-matched using the first TBS.

For example, the terminal device obtains a quantized coefficient set including 4 quantized coefficients { quantized coefficient 1, quantized coefficient 2, quantized coefficient 3, quantized coefficient 4}, and indication information corresponding to the 4 quantized coefficients includes 2 bits, 00, 01, 10, and 11, respectively. The network equipment semi-statically configures uplink resources for the terminal equipment, so that the terminal equipment can select proper resources from the uplink resources to carry out PUSCH transmission according to requirements. Assuming that the terminal device determines to transmit the first PUSCH on the first time unit configured semi-statically by the network device, the terminal device may determine a quantization coefficient, e.g., quantization coefficient 3, according to, e.g., the channel quality or the location of the first time unit, and determine the first TBS corresponding to the first PUSCH according to the quantization coefficient 3. Since the quantized coefficient 3 is determined by the terminal device and is unknown to the network device, the terminal device transmits a first PUSCH and UCI on the first time unit, where the UCI includes indication information for determining the quantized coefficient, i.e., bit indication information 10. The network device receives UCI in a first time unit, determines a quantization coefficient used by the terminal device from a quantization coefficient set to be quantization coefficient 3 according to quantization coefficient indication information bit 10 included in the UCI, determines a first TBS according to the quantization coefficient 3, and demodulates a first PUSCH according to the first TBS.

In the transmission process, the terminal device can determine the first TBS corresponding to the first PUSCH by itself according to the channel quality detection, so that in the uplink transmission performed by the network device semi-statically configured resource terminal device, the TBS more matched with the channel resource can be obtained, thereby improving the efficiency of channel transmission.

Of course, the first TBS may be adjusted in other ways. For example, the terminal device determines second information according to, for example, the channel quality and/or the position of the first time unit, where the second information includes at least one of a first modulation order and a first code rate, and determines, according to the second information, a first TBS corresponding to the first PUSCH, and transmits the first PUSCH and the UCI on the first time unit, where the UCI includes the second information for determining the first TBS. For example, the second information corresponding to different channel qualities and/or locations of the first time unit may be different.

In another possible implementation manner, the method further includes: the terminal equipment determines a first DMRS sequence corresponding to the quantization coefficient according to the quantization coefficient and the mapping relation between the demodulation reference signal DMRS sequence and the quantization coefficient; and the terminal equipment transmits the first DMRS sequence to the network equipment.

Accordingly, in one embodiment, in 310, obtaining quantized coefficients comprises: a network device receives a first DMRS sequence; and the network equipment determines the quantization coefficient as the quantization coefficient corresponding to the first DMRS sequence according to the first DMRS sequence and the mapping relation between the DMRS sequence and the quantization coefficient.

That is, the terminal device indicates the quantized coefficients to the network device through the DMRS. The mapping relationship between the DMRS sequence and the quantized coefficient may be configured by the network device and sent to the terminal device, or may be specified by a protocol, for example, agreed in advance between the terminal device and the network device.

Wherein, the first DMRS sequence is used to demodulate a first PUSCH corresponding to the first TBS.

That is, the first PUSCH is demodulated using the first DMRS, and the data in the first PUSCH is rate matched using the first TBS.

For example, the terminal device obtains a quantization coefficient set, the quantization coefficient set includes 4 quantization coefficients { quantization coefficient 1, quantization coefficient 2, quantization coefficient 3, quantization coefficient 4}, and DMRS sequences corresponding to the 4 quantization coefficients are sequence 1, sequence 2, sequence 3, and sequence 4, respectively. The network equipment semi-statically configures uplink resources for the terminal equipment, so that the terminal equipment can select proper resources from the uplink resources to carry out PUSCH transmission according to requirements. Assuming that the terminal device determines to transmit the first PUSCH on the first time unit configured semi-statically by the network device, the terminal device may determine a quantization coefficient, e.g., quantization coefficient 3, according to, e.g., the channel quality or the location of the first time unit, and determine the first TBS corresponding to the first PUSCH according to the quantization coefficient 3. Since the quantization factor 3 is self-determined by the terminal device and is not known by the network device, the terminal device transmits the first PUSCH and the DMRS sequence 3 on the first time unit, wherein the sequence 3 is used to demodulate the first PUSCH. The network device determines which DMRS sequence is sent by the terminal device in a first time unit, for example, performs correlation detection according to the received sequence 3 and known

sequences

1, 2, 3, and 4, and determines a quantization coefficient used by the terminal device to be quantization coefficient 3 from the quantization coefficient set after determining that the received sequence is the sequence 3, thereby determining a first TBS according to the quantization coefficient 3, and demodulates the first PUSCH according to the first TBS.

Similarly, the first TBS may also be adjusted in other manners, for example, by presetting a mapping relationship between a DMRS sequence and a modulation order or a mapping relationship between a DMRS sequence and a code rate, after determining the modulation order or the code rate, the terminal device selects the DMRS sequence corresponding to the modulation order or the code rate, and indicates the modulation order or the code rate information to the network device, so that the network device may correctly determine the first TBS. For example, the second information corresponding to different channel qualities and/or locations of the first time unit may be different.

It should be noted that, without conflict, the embodiments and/or technical features in the embodiments described in the present application may be arbitrarily combined with each other, and the technical solutions obtained after the combination also should fall within the scope of the present application.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Having described the communication method according to the embodiment of the present application in detail above, an apparatus according to the embodiment of the present application will be described below with reference to fig. 7 to 11, and the technical features described in the method embodiment are applicable to the following apparatus embodiments.

Fig. 7 is a schematic block diagram of a terminal device 700 according to an embodiment of the present application. As shown in fig. 7, the terminal device 700 includes a processing unit 710. Wherein the processing unit 710 is configured to:

obtaining a quantization coefficient and first information, wherein the first information comprises at least one of the resource quantity, the modulation order and the code rate which can be used for channel transmission;

and determining a first TBS according to the quantization coefficient and the first information.

Therefore, when determining the TBS in the unlicensed frequency band, in addition to using information such as the number of resources, the modulation order, and the code rate, a quantization coefficient is introduced, and the quantization coefficient is considered when determining the TBS, and the TBS for performing rate matching on channel transmission under different conditions is adjusted by the quantization coefficient to obtain a more reasonable TBS, thereby improving the efficiency of channel transmission.

In an embodiment, the terminal device further includes a transceiver unit 720, and the processing unit 710 is specifically configured to: controlling the transceiving unit 720 to receive first indication information, wherein the first indication information is used for determining the quantized coefficients.

In an embodiment, the first indication information is further used for determining the first information.

In an embodiment, the first indication information includes at least one of a slot structure indication SFI, uplink grant information and downlink grant information.

In an embodiment, the first TBS corresponds to a first PDSCH transmitted by a first time unit. Wherein if the first time unit comprises at least one time unit of the initial M time units in the first downlink transmission opportunity, the quantized coefficients are less than 1, and M is a positive integer; and/or if the first time unit does not include the at least one of the M time units in the first downlink transmission opportunity, the quantization factor is equal to 1.

In an embodiment, the first TBS corresponds to a first PDSCH, and the terminal device further includes a transceiving unit 720, where the transceiving unit 720 is configured to: receiving second indication information, where the second indication information is used to determine a second resource, where the second resource is actually used to transmit the first PDSCH, and the size of the second resource is smaller than or equal to the size of a first resource scheduled by the network device to transmit the first PDSCH, and the number of resources is determined according to the first resource; receiving the first PDSCH according to the first TBS on the second resource.

In an embodiment, the first TBS corresponds to a first PUSCH, the first PUSCH being a PUSCH of a plurality of consecutive PUSCHs. Wherein if the first PUSCH is a PUSCH in the first N PUSCHs of the plurality of consecutive PUSCHs, the quantization coefficient is less than 1, N is a positive integer; and/or, if the first PUSCH is a PUSCH after the N PUSCHs in the plurality of consecutive PUSCHs, the quantization coefficient is equal to 1.

In an embodiment, the first TBS corresponds to a first PUSCH, and the terminal device further includes a transceiver 720, where the transceiver 720 is configured to: and on a fourth resource, sending the first PUSCH according to the first TBS, where the fourth resource is a resource actually used for transmitting the first PUSCH, and the size of the fourth resource is smaller than or equal to the size of a third resource scheduled by the network device or configured semi-statically for transmitting the first PUSCH, and the resource amount is determined according to the third resource.

In an embodiment, the processing unit 710 is specifically configured to: acquiring a quantization coefficient set; the quantized coefficients are determined in the set of quantized coefficients.

In an embodiment, the processing unit 710 is specifically configured to: the control transceiving unit 720 receives third indication information, wherein the third indication information is used for determining the quantized coefficient set; or, obtaining the quantization coefficient set pre-stored in the terminal device.

In an embodiment, the processing unit 710 is specifically configured to: selecting the quantization coefficients in the set of quantization coefficients according to a channel quality.

In an embodiment, the terminal device further includes a transceiver 720, where the transceiver 720 is configured to: and sending Uplink Control Information (UCI), wherein the UCI comprises indication information used for determining the quantization coefficients.

In an embodiment, the terminal device further includes a transceiver 720, and the processing unit 710 is further configured to: determining a first DMRS sequence corresponding to the quantization coefficient according to the quantization coefficient and a mapping relation between a demodulation reference signal (DMRS) sequence and the quantization coefficient; the transceiver unit 720 is configured to: transmitting the first DMRS sequence.

In an embodiment, the first DMRS sequence is used to demodulate a first PUSCH corresponding to the first TBS.

In an embodiment, the number of resources comprises at least one of: a number of physical resource blocks, PRBs, a number of symbols, resource overhead within a PRB, a number of available resource elements, REs, and a number of available REs within each PRB.

In an embodiment, the processing unit 710 is specifically configured to: quantizing the code rate according to the quantization coefficient; and determining the first TBS according to the quantized code rate, the quantized modulation order and the quantized resource quantity.

In an embodiment, the processing unit 710 is specifically configured to: quantizing the resource quantity according to the quantization coefficient; and determining the first TBS according to the quantized resource number, the code rate and the modulation order.

In an embodiment, the processing unit 710 is specifically configured to: calculating a second TBS according to the code rate, the modulation order and the resource quantity; and quantizing the second TBS according to the quantization coefficient to obtain the first TBS.

It should be understood that the terminal device 700 may perform corresponding operations performed by the terminal device in the method 300, and therefore, for brevity, will not be described herein again.

Fig. 8 is a schematic block diagram of a network device 800 according to an embodiment of the present application. As shown in fig. 8, the network device 800 includes a processing unit 810. Wherein the processing unit 810 is configured to:

obtaining a quantization coefficient;

determining the first TBS according to the quantization coefficient and first information, wherein the first information comprises at least one of a number of resources available for channel transmission, a modulation order, and a code rate.

In an embodiment, the network device further includes a transceiver 820, where the transceiver 820 is configured to: and sending first indication information, wherein the first indication information is used for determining the quantization coefficient by the terminal equipment.

In an embodiment, the first indication information is further used for the terminal device to determine the first information.

In an embodiment, the first TBS corresponds to a first PDSCH transmitted by a first time unit. Wherein if the first time unit comprises at least one time unit of the initial M time units in the first downlink transmission opportunity, the quantized coefficients are less than 1, and M is a positive integer; and/or if the first time unit does not include the at least one time unit of the M time units in the first downlink transmission opportunity, the quantization factor is equal to 1.

In an embodiment, the first TBS corresponds to a first PDSCH, and the network device further includes a transceiving unit 820, where the transceiving unit 820 is configured to: sending second indication information, where the second indication information is used to determine a second resource, where the second resource is actually used to transmit the first PDSCH, the size of the second resource is smaller than or equal to the size of a first resource scheduled by the network device to transmit the first PDSCH, and the number of resources is determined according to the first resource; and sending the first PDSCH according to the first TBS on the second resource.

In an embodiment, the first TBS corresponds to a first PUSCH, and the network device further includes a transceiving unit 820, where the transceiving unit 820 is configured to: receiving the first PUSCH according to the first TBS on a fourth resource, wherein the fourth resource is a resource actually used for transmitting the first PUSCH, the size of the fourth resource is smaller than or equal to the size of a third resource scheduled by the network equipment or configured in a semi-static mode and used for transmitting the first PUSCH, and the resource quantity is determined according to the third resource.

In an embodiment, the processing unit 810 is further configured to: in a set of quantized coefficients, the quantized coefficients are determined.

In an embodiment, the network device further includes a transceiver 820, where the transceiver 820 is configured to: sending third indication information, wherein the third indication information is used for determining the quantization coefficient set.

In an embodiment, the network device further includes a transceiver 820, where the transceiver 820 is configured to: and receiving Uplink Control Information (UCI), wherein the UCI comprises indication information used for determining the quantization coefficients.

In an embodiment, the processing unit 810 is configured to: the control transceiving unit 820 receives a first demodulation reference signal (DMRS) sequence; and determining the quantization coefficient as a quantization coefficient corresponding to the first DMRS sequence according to the first DMRS sequence and the mapping relation between the DMRS sequence and the quantization coefficient.

In an embodiment, the number of resources comprises at least one of: the number of physical resource blocks, PRBs, number of symbols, resource overhead within a PRB, number of available resource elements, REs, and number of available REs within each PRB.

In an embodiment, the processing unit 810 is specifically configured to: quantizing the code rate according to the quantization coefficient; and determining the first TBS according to the quantized code rate, the quantized modulation order and the quantized resource quantity.

In an embodiment, the processing unit 810 is specifically configured to: quantizing the resource quantity according to the quantization coefficient; and determining the first TBS according to the quantized resource number, the code rate and the modulation order.

In an embodiment, the processing unit 810 is specifically configured to: calculating a second TBS according to the code rate, the modulation order and the resource quantity; and quantizing the second TBS according to the quantization coefficient to obtain the first TBS.

It should be understood that the network device 800 can perform the corresponding operations performed by the network device in the method 300, and therefore, for brevity, the description is not repeated herein.

Fig. 9 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application. The communication device 900 shown in fig. 9 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

In an embodiment, as shown in fig. 9, the communication device 900 may also include a memory 920. From the memory 920, the processor 910 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 920 may be a separate device from the processor 910, or may be integrated in the processor 910.

In an embodiment, as shown in fig. 9, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, and in particular, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 930 may include a transmitter and a receiver, among others. The transceiver 930 may further include one or more antennas.

In an embodiment, the communication device 900 may specifically be a terminal device in the embodiment of the present application, and the communication device 900 may implement a corresponding process implemented by the terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

In an embodiment, the communication device 900 may specifically be a network device in the embodiment of the present application, and the communication device 900 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, no further description is given here.

Fig. 10 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 1000 shown in fig. 10 includes a processor 1010, and the processor 1010 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

In an embodiment, as shown in fig. 10, the chip 1000 may further include a memory 1020. From the memory 1020, the processor 1010 may call and execute a computer program to implement the method in the embodiment of the present application.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

In an embodiment, the chip 1000 may further include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and specifically may obtain information or data transmitted by the other devices or chips.

In an embodiment, the chip 1000 may further include an output interface 1040. The processor 1010 may control the output interface 1040 to communicate with other devices or chips, and may particularly output information or data to the other devices or chips.

In an embodiment, the chip may be applied to the terminal device in the embodiment of the present application, and the chip may implement a corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.

In an embodiment, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off the shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and combines hardware thereof to complete the steps of the method.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 11 is a schematic block diagram of a communication system 1100 according to an embodiment of the present application. As shown in fig. 11, the communication system 1100 includes a network device 1110 and a terminal device 1120.

Wherein the network device 1110 is configured to: obtaining a quantization coefficient; and determining the first TBS according to the quantization coefficient and the first information.

Wherein the terminal device 1120 is configured to: obtaining a quantization coefficient; and determining the first TBS according to the quantization coefficient and the first information.

In an embodiment, the network device 1110 may be configured to implement corresponding functions implemented by the network device in the method 300, and the composition of the network device 1110 may be as shown in the network device 800 in fig. 8, which is not described herein again for brevity.

In an embodiment, the terminal device 1120 may be configured to implement corresponding functions implemented by the terminal device in the method 300, and the composition of the terminal device 1120 may be as shown in the terminal device 700 in fig. 7, which is not described herein again for brevity.

An embodiment of the present application further provides a computer-readable storage medium for storing a computer program. Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity. In an embodiment, the computer-readable storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions. Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity. In an embodiment, the computer program product may be applied to the terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program. Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again. In an embodiment, the computer program may be applied to the terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute corresponding processes implemented by the terminal device in the methods in the embodiment of the present application, and for brevity, details are not described here again.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should also be understood that in the present embodiment, "B corresponding to" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

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 the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional 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 functions, if implemented in the form of software functional units 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 or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of determining a transport block size, TBS, the method comprising:

the method comprises the steps that terminal equipment obtains a quantization coefficient and first information, wherein the first information comprises at least one of the resource quantity, the modulation order and the code rate which can be used for channel transmission;

the terminal equipment determines a first TBS according to the quantization coefficient and the first information;

the first TBS corresponds to a first Physical Downlink Shared Channel (PDSCH), the first PDSCH being transmitted by a first time unit,

wherein if the first time unit comprises at least one time unit of the initial M time units in the first downlink transmission opportunity, the quantized coefficients are less than 1, and M is a positive integer; and the number of the first and second groups,

if the first time unit does not include the at least one time unit of the M time units in the first downlink transmission opportunity, the quantized coefficient is equal to 1;

and determining the value of M according to the time delay from the preparation of the first PDSCH to the actual transmission of the first PDSCH by the network equipment.

2. The method of claim 1, wherein the obtaining of the quantized coefficients by the terminal device comprises:

and the terminal equipment receives first indication information, wherein the first indication information is used for determining the quantization coefficient.

3. The method of claim 2, wherein the first indication information is further used for determining the first information.

4. The method of claim 2 or 3, wherein the first indication information comprises at least one of a time slot structure indication (SFI), uplink grant information and downlink grant information.

5. The method of any one of claims 1-3, wherein the first TBS corresponds to a first PDSCH, the method further comprising:

the terminal device receives second indication information, wherein the second indication information is used for determining second resources, the second resources are actually used for transmitting the first PDSCH, the size of the second resources is smaller than or equal to the size of first resources, which are scheduled by the network device and used for transmitting the first PDSCH, and the number of the resources is determined according to the first resources;

and the terminal equipment receives the first PDSCH on the second resource according to the first TBS.

6. The method according to any one of claims 1 to 3, wherein the terminal device obtains the quantized coefficients, and comprises:

the terminal equipment acquires a quantization coefficient set;

and the terminal equipment determines the quantization coefficients in the quantization coefficient set.

7. The method of claim 6, wherein the terminal device obtains the quantized coefficient set, and comprises:

the terminal equipment receives third indication information, wherein the third indication information is used for determining the quantization coefficient set; or,

and the terminal equipment acquires the quantization coefficient set pre-stored in the terminal equipment.

8. The method of claim 7, wherein the terminal device determines the quantized coefficients in the set of quantized coefficients, comprising:

and the terminal equipment selects the quantization coefficient from the quantization coefficient set according to the channel quality.

9. The method of any of claims 1-3, wherein the amount of resources comprises at least one of:

the number of physical resource blocks, PRBs, number of symbols, resource overhead within a PRB, number of available resource elements, REs, and number of available REs within each PRB.

10. The method of any of claims 1 to 3, wherein the terminal device determines the first TBS based on the quantized coefficients and the first information, comprising:

the terminal equipment quantizes the code rate according to the quantization coefficient;

and the terminal equipment determines the first TBS according to the quantized code rate, the quantized modulation order and the quantized resource quantity.

11. The method of any of claims 1 to 3, wherein the terminal device determines the first TBS based on the quantized coefficients and the first information, comprising:

the terminal equipment quantizes the resource quantity according to the quantization coefficient;

and the terminal equipment determines the first TBS according to the quantized resource quantity, the code rate and the modulation order.

12. The method of any of claims 1 to 3, wherein the terminal device determines the first TBS based on the quantized coefficients and the first information, comprising:

the terminal equipment calculates a second TBS according to the code rate, the modulation order and the resource quantity;

and the terminal equipment quantizes the second TBS according to the quantization coefficient to obtain the first TBS.

13. A method of determining a transport block size, TBS, the method comprising:

the network equipment acquires a quantization coefficient;

the network equipment determines a first TBS according to the quantization coefficient and first information, wherein the first information comprises at least one of the number of resources available for channel transmission, a modulation order and a code rate;

wherein the value of M is determined according to a time delay from the preparation of the first PDSCH to the actual transmission of the first PDSCH by the network device.

14. The method of claim 13, further comprising:

and the network equipment sends first indication information, wherein the first indication information is used for the terminal equipment to determine the quantization coefficient.

15. The method of claim 14, wherein the first indication information is further used for the terminal device to determine the first information.

16. The method of claim 14 or 15, wherein the first indication information comprises at least one of a slot structure indication (SFI), uplink grant information and downlink grant information.

17. The method of any one of claims 13 to 15, wherein the first TBS corresponds to a first PDSCH, the method further comprising:

the network equipment sends second indication information, wherein the second indication information is used for determining second resources, the second resources are actually used for transmitting the first PDSCH, the size of the second resources is smaller than or equal to the size of first resources which are scheduled by the network equipment and used for transmitting the first PDSCH, and the number of the resources is determined according to the first resources;

and the network equipment sends the first PDSCH on the second resource according to the first TBS.

18. The method of any of claims 13 to 15, wherein the network device obtaining quantized coefficients comprises:

the network device determines the quantized coefficients in a set of quantized coefficients.

19. The method of claim 18, further comprising:

the network device sends third indication information, and the third indication information is used for determining the quantized coefficient set.

20. The method of any of claims 13 to 15, wherein the amount of resources comprises at least one of:

21. The method of any of claims 13-15, wherein the network device determines the first TBS based on the quantized coefficients and the first information, comprising:

the network equipment quantizes the code rate according to the quantization coefficient;

and the network equipment determines the first TBS according to the quantized code rate, the quantized modulation order and the quantized resource quantity.

22. The method of any of claims 13-15, wherein the network device determines the first TBS based on the quantized coefficients and the first information, comprising:

the network equipment quantizes the resource quantity according to the quantization coefficient;

and the network equipment determines the first TBS according to the quantized resource quantity, the code rate and the modulation order.

23. The method of any of claims 13-15, wherein the network device determines the first TBS based on the quantized coefficients and the first information, comprising:

the network equipment calculates a second TBS according to the code rate, the modulation order and the resource quantity;

and the network equipment quantizes the second TBS according to the quantization coefficient to obtain the first TBS.

24. A terminal device, characterized in that the terminal device comprises:

the device comprises a processing unit, a processing unit and a processing unit, wherein the processing unit is used for obtaining a quantization coefficient and first information, and the first information comprises at least one of the resource quantity, the modulation order and the code rate which can be used for channel transmission;

the processing unit is further configured to determine a first TBS according to the quantization coefficient and the first information;

25. The terminal device according to claim 24, wherein the terminal device further includes a transceiver unit, and the processing unit is specifically configured to:

and controlling the transceiver unit to receive first indication information, wherein the first indication information is used for determining the quantization coefficient.

26. The terminal device of claim 25, wherein the first indication information is further used for determining the first information.

27. The terminal device according to claim 25 or 26, wherein the first indication information comprises at least one of a slot structure indication (SFI), uplink grant information and downlink grant information.

28. The terminal device of any of claims 24 to 26, wherein the first TBS corresponds to a first PDSCH, the terminal device further comprising a transceiving unit configured to:

receiving second indication information, where the second indication information is used to determine a second resource, where the second resource is a resource actually used for transmitting the first PDSCH, the size of the second resource is smaller than or equal to the size of a first resource scheduled by the network device for transmitting the first PDSCH, and the resource number is a number of resources available for channel transmission in the first resource;

receiving the first PDSCH according to the first TBS on the second resource.

29. The terminal device according to any one of claims 24 to 26, wherein the processing unit is specifically configured to:

acquiring a quantization coefficient set;

determining the quantized coefficients in the set of quantized coefficients.

30. The terminal device of claim 29, wherein the processing unit is specifically configured to:

controlling a transceiving unit to receive third indication information, wherein the third indication information is used for determining the quantization coefficient set; or,

and acquiring the quantization coefficient set pre-stored in the terminal equipment.

31. The terminal device of claim 30, wherein the processing unit is specifically configured to:

selecting the quantized coefficients in the set of quantized coefficients according to channel quality.

32. The terminal device according to any of claims 24-26, wherein the amount of resources comprises at least one of:

33. The terminal device according to any one of claims 24 to 26, wherein the processing unit is specifically configured to:

quantizing the code rate according to the quantization coefficient;

and determining the first TBS according to the quantized code rate, the quantized modulation order and the quantized resource quantity.

34. The terminal device according to any one of claims 24 to 26, wherein the processing unit is specifically configured to:

quantizing the resource quantity according to the quantization coefficient;

and determining the first TBS according to the quantized resource number, the code rate and the modulation order.

35. The terminal device according to any one of claims 24 to 26, wherein the processing unit is specifically configured to:

calculating a second TBS according to the code rate, the modulation order and the resource quantity;

and quantizing the second TBS according to the quantization coefficient to obtain the first TBS.

36. A network device, characterized in that the network device comprises:

a processing unit for obtaining quantized coefficients;

the processing unit is further configured to determine a first TBS according to the quantization coefficient and first information, where the first information includes at least one of a number of resources available for channel transmission, a modulation order, and a code rate;

the first TBS corresponds to a first Physical Downlink Shared Channel (PDSCH), the first PDSCH being transmitted over a first time unit,

37. The network device of claim 36, further comprising a transceiver unit configured to:

and sending first indication information, wherein the first indication information is used for determining the quantization coefficient by the terminal equipment.

38. The network device of claim 37, wherein the first indication information is further used for a terminal device to determine the first information.

39. The network device of claim 37 or 38, wherein the first indication information comprises at least one of a slot structure indication (SFI), uplink grant information and downlink grant information.

40. The network device of any one of claims 36 to 38, wherein the first TBS corresponds to a first PDSCH, the network device further comprising a transceiving unit configured to:

sending second indication information, where the second indication information is used to determine a second resource, where the second resource is actually used to transmit the first PDSCH, the size of the second resource is smaller than or equal to the size of a first resource scheduled by the network device to transmit the first PDSCH, and the resource number is the number of resources available for channel transmission in the first resource;

and sending the first PDSCH according to the first TBS on the second resource.

41. The network device of any of claims 36-38, wherein the processing unit is further configured to:

in a set of quantized coefficients, the quantized coefficients are determined.

42. The network device of claim 41, further comprising a transceiver unit configured to:

sending third indication information, wherein the third indication information is used for determining the quantization coefficient set.

43. The network device of any of claims 36 to 38, wherein the amount of resources comprises at least one of:

a number of physical resource blocks, PRBs, a number of symbols, resource overhead within a PRB, a number of available resource elements, REs, and a number of available REs within each PRB.

44. The network device according to any one of claims 36 to 38, wherein the processing unit is specifically configured to:

quantizing the code rate according to the quantization coefficient;

45. The network device according to any one of claims 36 to 38, wherein the processing unit is specifically configured to:

quantizing the resource quantity according to the quantization coefficient;

46. The network device according to any one of claims 36 to 38, wherein the processing unit is specifically configured to:

47. A terminal device, characterized in that the terminal device comprises a processor and a memory for storing a computer program, the processor being adapted to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 12.

48. A network device comprising a processor and a memory, the memory storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 13 to 23.

49. A chip, characterized in that it comprises a processor for calling up and running a computer program from a memory, so that a device in which the chip is installed performs the method of any one of claims 1 to 12.

50. A chip, characterized in that it comprises a processor for calling up and running a computer program from a memory, so that a device in which the chip is installed performs the method of any of claims 13 to 23.

51. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 12.

52. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 13 to 23.

53. A communication system comprising a terminal device according to any of claims 24 to 35 and a network device according to any of claims 36 to 46.