WO2021026691A1

WO2021026691A1 - Uplink data transmission method and receiving method, apparatuses, terminal, and medium

Info

Publication number: WO2021026691A1
Application number: PCT/CN2019/100028
Authority: WO
Inventors: 牟勤
Original assignee: 北京小米移动软件有限公司
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2021-02-18
Also published as: CN112655168A; CN112655168B

Abstract

Disclosed are an uplink data transmission method and receiving method, apparatuses, a terminal, and a medium. The method comprises: a UE receives a first uplink scheduling grant of a first service; determine a first uplink data channel of the first service according to the first uplink scheduling grant; when the first uplink data channel of the first service conflicts with a second uplink data channel of a second service in a time domain, determine a bit rate of second uplink data after the second service is punctured; when the bit rate is higher than a threshold, send first uplink data of the first service on the first uplink data channel, and cancel sending the second uplink data after the second service is punctured. When the UE simultaneously performs uplink data transmission of different priority services, according to the relationship between the bit rate and the threshold in the present invention, the UE determines whether to continue to send uplink data of the second service to a base station, thereby reducing a waste of transmitted resources, and reducing interference in a network.

Description

Uplink data transmission method, receiving method, device, terminal and medium

Technical field

The present disclosure relates to the field of wireless communication, and in particular to a transmission method, receiving method, device, terminal and medium of uplink data.

Background technique

The 3rd Generation Partnership Project (3GPP) defines three major directions for 5G application scenarios: Enhance Mobile Broadband (eMBB), Massive Machine Type of Communication (mMTC), and ultra High-reliable and ultra-low latency communication (Ultra Reliable & Low Latency Communication, U RLLC). In the process of uplink data transmission, the service types corresponding to the above scenarios have different priorities.

The Physical Uplink Shared Channel (PUSCH) is responsible for carrying the uplink data of the service. When a user equipment (User Equipment, UE) simultaneously performs uplink data transmission of different priority services, it may happen that PUSCHs of different priority services conflict on time domain resources. In the related technology, the conflicting part of the PUSCH of the low-priority service is discarded, or the conflicting PUSCH of the low-priority service and the subsequent parts are discarded together, and only the undiscarded PUSCH of the service is transmitted to the base station.

In the related art, if there are too many conflicting parts between two services, resulting in too many PUSCHs for low-priority services being discarded, the base station will not be able to demodulate the PUSCH of the service correctly, wasting transmission resources, and increasing interference in the network.

Summary of the invention

The embodiments of the present disclosure provide an uplink data transmission method, receiving method, device, terminal and medium, which can be used to resolve the conflict between the uplink data channels of two services in the time domain and the uplink data of the low priority service is discarded Too much, causing the base station to be unable to demodulate the uplink data of the service correctly and wasting transmission resources. The technical solution is as follows:

According to one aspect of the present disclosure, there is provided a method for transmitting uplink data, which is applied to a UE, and the method includes:

Receiving the first uplink scheduling authorization of the first service;

Determine the first uplink data channel of the first service according to the first uplink scheduling authorization;

When the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain, determining the code rate of the second uplink data after the second service is punctured;

When the code rate is higher than the threshold value, sending the first uplink data of the first service on the first uplink data channel, and canceling the sending of the second uplink data punctured by the second service.

In an optional embodiment, when the code rate is lower than the threshold value, the first uplink data of the first service is sent on the first uplink data channel, and the The second uplink data punctured by the second service is sent on the data channel.

In an optional embodiment, the second uplink data after puncturing includes:

In the second uplink data of the second service, the remaining uplink data after discarding the uplink data carried by the conflicting second uplink data channel;

or,

In the second uplink data of the second service, the uplink data carried on the conflicting second uplink data channel and the uplink data carried on the second uplink data channel that does not conflict afterwards are discarded and the remaining uplink data.

In an optional embodiment, the time interval between receiving the first uplink scheduling authorization and determining the code rate of the second uplink data after the second service is punctured is T.

In an optional embodiment, the determining the code rate of the second uplink data after the second service is punctured includes: within a time interval T during which the first uplink scheduling authorization is received, determining the The code rate of the second uplink data after the second service is punctured, and a part of the unpunctured data in the second uplink data is sent on the second uplink data channel. In an optional embodiment, the second uplink data of the second service is repeatedly transmitted using semi-static configuration signaling configuration; the determining the bit rate of the second uplink data after the second service is punctured, Including: for the i-th repetition of the second uplink data, when the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain, determining the Second, the bit rate of the i-th repetition of the second uplink data after the service is punctured; wherein the i-th repetition is any repetition of the second uplink data.

According to one aspect of the present disclosure, there is provided a method for receiving uplink data, which is applied to a base station, and the method includes:

Sending the first uplink scheduling authorization of the first service;

When the code rate is higher than the threshold value, the first uplink data of the first service is received on the first uplink data channel.

In an optional embodiment, the method further includes:

When the code rate is lower than the threshold value, receive the first uplink data of the first service on the first uplink data channel, and receive the second service on the second uplink data channel The second upstream data after puncturing.

According to one aspect of the present disclosure, there is provided an uplink data transmission device, which is applied to a UE, and the device includes: a receiving module, a determining module, and a sending module;

The receiving module is configured to receive the first uplink scheduling authorization of the first service;

The determining module is configured to determine the first uplink data channel of the first service according to the first uplink scheduling authorization;

The determining module is configured to determine the second service punctured second service when the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain. The bit rate of the uplink data;

The sending module is configured to send the first uplink data of the first service on the first uplink data channel when the code rate is higher than the threshold value, and cancel sending the second service puncturing The second upstream data after the next;

In an optional embodiment, the device further includes:

The sending module is configured to send the first uplink data of the first service on the first uplink data channel when the code rate is lower than the threshold value, and the second uplink data The second uplink data punctured by the second service is sent on the channel.

In an optional embodiment, the second uplink data after puncturing includes:

Or, in the second uplink data of the second service, the uplink data carried on the conflicting second uplink data channel and the uplink data carried on the second uplink data channel that does not conflict afterwards are discarded. The remaining upstream data.

In an optional embodiment, the determining module is configured to repeatedly transmit the second uplink data of the second service using semi-static configuration signaling configuration; after the determining the second service is punctured The bit rate of the second uplink data includes:

For the i-th repetition of the second uplink data, when the first uplink data channel of the first service and the second uplink data channel of the second service conflict in the time domain, the second service is determined The bit rate of the i-th repetition of the second uplink data after puncturing;

Wherein, the i-th repetition is any repetition of the second uplink data.

According to one aspect of the present disclosure, a device for receiving uplink data is provided, which is applied to a base station, and the device includes: a sending module, a determining module, and a receiving module;

The sending module is configured to send the first uplink scheduling authorization of the first service;

The determining module is configured to determine the second uplink of the second service after the second service is punctured when the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain. The bit rate of the data;

The receiving module is configured to receive first uplink data of the first service on the first uplink data channel when the code rate is higher than a threshold value.

In an optional embodiment, the device further includes:

The receiving module is configured to receive the first uplink data of the first service on the first uplink data channel when the code rate is lower than the threshold value, and use the first uplink data on the second uplink data channel The second uplink data punctured by the second service is received upward.

According to one aspect of the present disclosure, there is provided a terminal, the terminal comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processing The device is configured to load and execute the executable instructions to implement the uplink data transmission method as described in the above aspect.

According to one aspect of the present disclosure, there is provided an access network device, the access network device comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor ; Wherein, the processor is configured to load and execute the executable instructions to implement the uplink data receiving method as described in the foregoing aspect.

According to one aspect of the present disclosure, there is provided a computer-readable storage medium having executable instructions stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the aforementioned aspects. The method for sending uplink data, and/or the method for receiving uplink data as described above.

The technical solutions provided by the embodiments of the present disclosure include at least the following beneficial effects:

When the UE performs uplink data transmission of services of different priorities at the same time, it is determined whether to continue to send the second uplink data of the second service to the base station according to the relationship between the code rate and the threshold, which avoids the problem of the second service transmitted by the UE. When the second uplink data is discarded too much data, transmission resources are saved.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work.

Fig. 1 is a block diagram of a communication system provided by an exemplary embodiment of the present disclosure;

Fig. 2 is a schematic diagram of repeated uplink data transmission provided by an exemplary embodiment of the present disclosure;

Fig. 3 is a flowchart of a method for transmitting uplink data provided by an exemplary embodiment of the present disclosure;

4 is a schematic diagram of a conflict in the time domain between a first uplink data channel of a first service and a second uplink data channel of a second service provided by an exemplary embodiment of the present disclosure;

Fig. 5 is a flowchart of a method for receiving uplink data provided by an exemplary implementation of the present disclosure;

Fig. 6 is a flowchart of uplink data transmission provided by an exemplary embodiment of the present disclosure;

Fig. 7 is a schematic diagram of punctured uplink data provided by an exemplary implementation of the present disclosure;

FIG. 8 is a schematic diagram of uplink data transmission provided by an exemplary embodiment of the present disclosure;

FIG. 9 is a flowchart of uplink data transmission provided by an exemplary embodiment of the present disclosure;

FIG. 10 is a schematic diagram of uplink data transmission provided by an exemplary embodiment of the present disclosure;

Fig. 11 is a block diagram of an uplink data transmission device provided by an exemplary embodiment of the present disclosure;

Fig. 12 is a block diagram of a device for receiving uplink data provided by an exemplary embodiment of the present disclosure;

Fig. 13 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present disclosure.

detailed description

In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the following further describes the embodiments of the present disclosure in detail with reference to the accompanying drawings.

FIG. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present disclosure. The communication system may include: an access network 12 and a terminal 13.

The access network 12 includes several access network devices 120. The access network device 120 may be a base station, which is a device deployed in an access network to provide a wireless communication function for a terminal. The base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, in LTE systems, they are called eNodeB or eNB; in 5G NR-U systems, they are called gNodeB or gNB. . As communication technology evolves, the description of "base station" may change. For convenience, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for the terminal 13 are collectively referred to as access network equipment.

The terminal 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (Mobile Station, MS), Terminal (terminal device) and so on. For ease of description, the devices mentioned above are collectively referred to as terminals. The access network device 120 and the terminal 13 communicate with each other through a certain air interface technology, such as a Uu interface.

In the 5G New Radio (NR) standard, for uplink resource scheduling, two resource scheduling methods are supported, one is dynamic resource scheduling, and the other is semi-static resource scheduling.

Dynamic resource scheduling means that the base station sends an uplink scheduling grant (UL grant) to the UE, and the UL grant includes the time-frequency domain resources occupied by the scheduled uplink data channel. The UE will send uplink data on the indicated time-frequency resources in accordance with the instructions of the UL grant.

Semi-static resource scheduling means that the base station sends semi-static configuration signaling to the UE, and the semi-static configuration signaling includes the time-frequency domain resources occupied by the scheduled uplink data channel. Semi-static resource scheduling is divided into two types in the NR standard. Type 1 is that the base station semi-statically configures a periodic uplink data channel for the UE in the radio resource control layer to transmit data. Type 2 is that the base station semi-statically configures a periodic uplink data channel for the UE in the radio resource control layer to transmit data, but the downlink control information from the physical layer needs to be activated.

Among them, the semi-static configuration signaling is also used to indicate that the uplink data adopts a repeated transmission mode. In one cycle, the UE can repeatedly send the same data transmission block (Transmission Block, TB) on the configured uplink data channel. Exemplarily, as shown in Figure 2, the period is 4 milliseconds. In one cycle, the UE repeatedly sends TB1. In the next cycle, the UE repeatedly sends TB2.

The International Telecommunication Union (ITU) divides services in 5G networks into three major categories. The first type is eMMB. eMMB is a 5G service type specifically serving mobile devices such as mobile phones. The second category is URLLC, which will be mainly used in industrial applications and autonomous vehicles. The third category is mMTC. mMTC is a type of business that will be used in the "Internet of Things" and "Internet of Everything" scenarios. The strength of mMTC is that it allows a large number of adjacent devices to enjoy smooth communication connections at the same time.

Among them, the U RLLC service usually requires very high reliability and very low delay. The eMBB service type usually requires a higher rate, but does not require very low delay and very low error rate. Therefore, the priority of the U RLLC service type will be higher in comparison. When the two air interface time and frequency domain resources conflict, the transmission of the URLLC service is guaranteed first, and the UE is notified through the downlink control instruction. This mechanism enables URLLC data to be sent with a relatively high priority, which improves the reliability of URLLC transmission.

Fig. 3 shows a flowchart of an uplink data transmission method provided by an exemplary embodiment of the present disclosure, which is applied to a UE. The method includes:

Step 201: Receive a first uplink scheduling authorization;

The first uplink scheduling authorization is a type of Downlink Control Information (DCI), which is sent by the base station to the UE. The first uplink scheduling grant is used to indicate the time-frequency domain resources occupied by the scheduled first uplink data channel.

Step 202: Determine the first uplink data channel of the first service according to the first uplink scheduling authorization;

The first uplink data channel carries the first uplink data of the first service.

Optionally, the first service is a URLLC service.

Step 203: When the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain, determine the code rate of the second uplink data after the second service is punctured;

Optionally, the second service is an eMBB service, and the priority of the first service is higher than the priority of the second service. When the first service and the second service conflict on the air interface time-frequency resources, the data of the first service is transmitted first, and the second uplink data of the second service will be punctured.

The code rate is the ratio of the number of original information bits to the number of information bits after encoding.

If the number of original information bits is N, the number of information bits after encoding is M. The UE passes the encoded M-bit information through steps such as constellation mapping and carrier modulation to form a data transmission block, which is carried on the uplink data channel for transmission, and the code rate of this data transmission block is N/M. If the data transmission block is punctured, the number of punctured bits is K, and the code rate of the punctured data transmission block is N/(M-K).

With reference to Fig. 4, Fig. 4 shows a schematic diagram of a conflict between the first uplink data channel of the first service and the second uplink data channel of the second service in the time domain.

The conflict between the first uplink data channel and the second uplink data channel of the second service in the time domain includes two situations: part of the time domain symbol position of the first uplink data channel overlaps with the time domain symbol position of the second service, and the first All time domain symbol positions of the uplink data channel overlap with the time domain symbol positions of the second service. As shown in (a) in Figure 4, part of the time domain symbol position of the first uplink data channel overlaps with the time domain symbol position of the second service. As shown in (b) in FIG. 4, all the time-domain symbol positions of the first uplink data channel overlap with the time-domain symbol positions of the second service.

Step 204: When the code rate is higher than the threshold, send the first uplink data of the first service on the first uplink data channel, and cancel sending the second uplink data punctured by the second service;

The threshold is obtained through simulation experiments.

Exemplarily, a possible threshold value in Long Term Evolution (LTE) is 0.932; a possible threshold value in 5G NR is 0.95.

When the code rate of the second service is greater than the threshold, it means that too much data is punctured for the second service, and the base station may not be able to demodulate the second uplink data of the second service correctly. When the code rate of the second service is less than the threshold, it means that the base station may correctly demodulate the second uplink data of the second service.

To sum up, in the method provided in this embodiment, when the UE is simultaneously transmitting uplink data of different priority services, according to the relationship between the code rate and the threshold, the UE determines whether to continue to send the uplink data of the low priority service to The base station reduces the waste of transmission resources.

Fig. 5 shows a flowchart of a method for receiving uplink data provided by an exemplary implementation of the present disclosure, which is applied in a base station. The method includes:

Step 401: Send the first uplink scheduling authorization of the first service;

The first uplink scheduling grant is used to indicate the time-frequency domain resources occupied by the scheduled first uplink data channel.

Step 402: When the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain, determine the code rate of the second uplink data after the second service is punctured;

Optionally, the method for puncturing the second uplink data includes: in the second uplink data of the second service, discarding the uplink data carried by the conflicting second uplink data channel and the remaining uplink data; or In the second uplink data of the second service, the uplink data carried on the conflicting second uplink data channel and the uplink data carried on the second uplink data channel that did not conflict afterwards are discarded. The remaining uplink data .

Step 403: When the code rate is higher than the threshold, receive the first uplink data of the first service on the first uplink data channel;

In an example, when the code rate is lower than the threshold, the first uplink data of the first service is received on the first uplink data channel, and the second uplink data punctured by the second service is received on the second uplink data channel. data.

To sum up, in the method provided in this embodiment, when the UE is simultaneously performing uplink data transmission of services with different priorities, the base station determines whether to receive the uplink data of services with low priority according to the relationship between the code rate and the threshold value. Data reduces the waste of transmission resources and reduces the interference in network transmission.

Fig. 6 shows a flowchart of uplink data transmission provided by an exemplary embodiment of the present disclosure. The method may be executed by a base station and a UE. The method includes:

Step 501: The base station sends the first uplink scheduling authorization of the first service;

Step 502: When the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain, the base station determines the code rate of the second uplink data after the second service is punctured;

In an example, the second uplink data after puncturing includes: in the second uplink data of the second service, the remaining uplink data after discarding the uplink data carried by the conflicting second uplink data channel; or, In the second uplink data of the second service, the uplink data carried by the conflicting second uplink data channel and the uplink data carried on the second uplink data channel not conflicting afterwards are discarded and the remaining uplink data is discarded.

As shown in FIG. 7, the second uplink data channel of the second service conflicts with the first uplink data channel of the first service on symbols 8-11. In Figure 7(a), the second uplink data after puncturing is the remaining uplink data after discarding the uplink data carried by the conflicting second uplink data channel. The uplink data on symbols 8 to 11 will be discarded. throw away. In Figure 7(b), the second uplink data after puncturing is performed on the uplink data carried by the conflicting second uplink data channel and the uplink data carried on the second uplink data channel without conflict afterwards. The remaining uplink data after discarding, the uplink data on symbols 8 to 13 will be discarded.

Step 503: The UE receives the first uplink scheduling authorization of the first service;

The UE receives the information in the first uplink scheduling grant, and transmits the first uplink data through the first uplink data channel on the designated time-frequency domain resources.

Step 504: The UE determines the first uplink data channel of the first service according to the first uplink scheduling authorization;

In an example, the time interval between receiving the first uplink scheduling authorization and determining the code rate of the second uplink data after the second service is punctured is T.

Within the duration of T, the UE demodulates the received first uplink scheduling grant, and calculates the code rate of the second uplink data after the second service is punctured according to the first uplink data channel indicated in the first uplink scheduling grant.

Optionally, the time interval T is in units of symbols.

In an example, the time interval T is determined according to the processing capability of the user equipment UE.

UE processing capacity is used to measure the degree of satisfaction of the terminal to the demand. UE processing capabilities include data rate, transmission bandwidth, modulation method, number of antennas, etc. The stronger the UE processing capability, the shorter the required time interval T; the weaker the UE processing capability, the shorter the required time interval T.

Step 504: When the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain, the UE determines the code rate of the second uplink data after the second service is punctured;

In an example, determining the code rate of the second uplink data after the second service is punctured includes: within the time interval T during which the first uplink scheduling authorization is received, determining that the second service is punctured The code rate of the second uplink data is transmitted on the second uplink data channel, and a part of the unpunctured data in the second uplink data is sent on the second uplink data channel.

Optionally, the UE receives the second uplink scheduling authorization of the second service; and determines the second uplink data channel of the second service according to the second uplink scheduling authorization.

The second uplink scheduling grant is used to indicate the time-frequency domain resources occupied by the scheduled second uplink data channel. The UE receives the information in the second uplink scheduling grant, and transmits the second uplink data through the second uplink data channel on the designated time-frequency domain resources.

Optionally, the UE receives the semi-static configuration signaling of the second service; and determines the second uplink data channel of the second service according to the semi-static configuration signaling.

According to the semi-static configuration signaling, the base station semi-statically configures a periodic uplink data channel for the UE in the radio resource control layer to transmit data. It should be noted that if the UE has uplink data to transmit, it can be transmitted on a semi-statically configured uplink data channel. If the UE has no uplink data to transmit, the semi-statically configured uplink data channel can be vacant.

Among them, the semi-static configuration signaling is also used to indicate that the second service adopts a repeated transmission mode.

In an example, the second uplink data of the second service is repeatedly transmitted using semi-static configuration signaling configuration; the determining the code rate of the second uplink data after the second service is punctured includes: The i-th repetition of the second uplink data. When the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain, it is determined that the second service is punctured. The code rate of the i-th repetition of the second uplink data; wherein the i-th repetition is any repetition of the second uplink data.

When the second service adopts the repeated transmission mode, a time domain resource conflict occurs for the i-th repetition of the TB of the second service, and the UE calculates the code rate of the i-th repetition after puncturing. If the bit rate after the i-th repeated puncturing of the TB of the second service is higher than the threshold, the first uplink data of the first service on the first uplink data channel is sent, and the sending on the second uplink data channel is cancelled. The i-th repetition of the punctured TB; if it is lower than the threshold, the first uplink data of the first service on the first uplink data channel is sent, and the punctured TB on the second uplink data channel is sent The i-th repeat of.

Step 505: When the code rate is higher than the threshold, the UE sends the first uplink data of the first service on the first uplink data channel, and cancels the sending of the second uplink data punctured by the second service;

The code rate is higher than the threshold value, which means that there are a lot of second uplink data punctured for the second service, and the base station may not be able to successfully demodulate the second uplink data punctured.

Step 506: When the code rate is higher than the threshold, the base station receives the first uplink data of the first service on the first uplink data channel;

It should be noted that the base station may receive part of the second uplink data of the second service when there is no conflict, and the base station will not demodulate the part of the second uplink data of the second service.

With reference to FIG. 8, FIG. 8 shows a schematic diagram of uplink data transmission provided by an exemplary embodiment of the present disclosure.

Exemplarily, in 5G NR, a time slot contains 14 symbols, and the code rate threshold is 0.95. The number of original information bits of the second uplink data of the second service is 224 bits, and the number of information bits after encoding is 448 bits. The 48-bit second uplink data undergoes steps such as modulation and is transmitted on the time domain resources of symbols 2 to 13. At this time, the code rate of the second uplink data is 0.5.

After receiving the second uplink scheduling grant of the second service, the UE transmits the second uplink data on symbols 2-13. The UE again receives the first uplink scheduling grant for the first service on symbol 1, and will transmit the first uplink data on symbols 8-11. The value of the time interval T is set to 2 symbols. The puncturing method adopted is to discard the uplink data carried on the conflicting second uplink data channel and the subsequent non-conflicting second uplink data channel.

The transmission of the first uplink data channel and the second uplink data channel conflict, and the second uplink data on symbols 8 to 13 is punctured. The time interval T is 2 symbols, and the UE calculates on symbol 3 that the code rate of the second uplink data after puncturing is 1. The bit rate of the second uplink data after puncturing is greater than the threshold 0.95. After the UE sends the second uplink data of the second uplink service on symbol 3, it cancels sending the second uplink data after puncturing on the second uplink data channel. For uplink data, the first uplink data is sent through the first uplink data channel on symbols 8 to 13.

When the base station sends the first uplink scheduling authorization, it is determined that the second uplink data on symbols 8 to 13 will be punctured for the second service, and the code rate of the second uplink data after the puncturing is calculated to be 1. The code rate is higher than the threshold, and the base station receives and demodulates the first uplink data sent by the UE on the first uplink data channel.

Optionally, in this case, the base station does not receive the second uplink data after puncturing. However, before the base station has received part of the second uplink data sent by the second service on symbol 2, the base station will not demodulate these parts of the second uplink data.

Fig. 9 shows a flowchart of uplink data transmission provided by an exemplary embodiment of the present disclosure. The method may be executed by a base station and a UE. In a possible situation, step 506 and step 507 in FIG. 6 are replaced with:

Step 508: When the code rate is lower than the threshold, send the first uplink data of the first service on the first uplink data channel, and send the second uplink data of the second service punctured on the second uplink data channel;

The code rate is lower than the threshold value, which means that there are not many second uplink data punctured for the second service, and the base station may successfully demodulate the punctured second uplink data.

Step 509: When the code rate is lower than the threshold, the base station receives the first uplink data of the first service on the first uplink data channel, and receives the second uplink data punctured by the second service on the second uplink data channel. ；

After puncturing, there will be no time-domain conflict between the first uplink data channel and the second uplink data channel, so the base station can receive the first uplink data of the first service on the first uplink data channel, or on the second uplink data channel The second uplink data punctured by the second service is received upward.

With reference to Fig. 10, Fig. 10 shows a schematic diagram of uplink data transmission provided by an exemplary embodiment of the present disclosure.

Exemplarily, in 5G NR, a time slot contains 14 symbols, and the code rate threshold is 0.95. The number of original information bits of the second uplink data of the second service is 224 bits, and the number of information bits after encoding is 448 bits. The second uplink data of 448 bits undergoes steps such as modulation and is transmitted on the time domain resources of symbols 2 to 13. At this time, the code rate of the second uplink data is 0.5.

The UE transmits the second uplink data on symbols 2-13 according to the semi-static configuration signaling. The UE again receives the first uplink scheduling authorization of the first service on symbol 7, and determines to transmit conflict on symbol 13, and the second uplink data on symbol 13 is punctured. The value of the time interval T is set to 2 symbols. The puncturing method adopted is to discard the uplink data carried on the conflicting second uplink data channel and the subsequent non-conflicting second uplink data channel.

The time interval T is 2 symbols, and the UE calculates on symbol 9 that the code rate of the second uplink data after puncturing is 0.545. The code rate of the punctured second uplink data is less than the threshold 0.95. The UE sends the punctured second uplink data through the second uplink data channel on symbols 2 to 12, and transmits the first uplink data channel on symbol 13 Send the first uplink data.

When the base station sends the first uplink scheduling authorization, it is determined that the second uplink data on symbol 13 will be punctured for the second service, and the code rate of the second uplink data after the puncturing is calculated to be 0.545. The code rate is less than the threshold, the base station receives and demodulates the first uplink data sent by the UE through the first uplink data channel, and receives and demodulates the punctured second uplink data sent by the UE through the second uplink data channel .

FIG. 11 shows a block diagram of a device for transmitting uplink data provided by an exemplary embodiment of the present disclosure, which is applied to a UE. The device includes a determining module 901, a sending module 902, and a receiving module 903.

The receiving module 903 is configured to receive the first uplink scheduling authorization of the first service;

The determining module 901 is configured to determine the first uplink data channel of the first service according to the first uplink scheduling authorization;

The determining module 901 is configured to determine the first uplink data channel of the first service after puncturing the second service when a conflict occurs in the time domain with the second uplink data channel of the second service. 2. The bit rate of uplink data;

The sending module 902 is configured to send the first uplink data of the first service on the first uplink data channel and cancel the sending of the second service when the code rate is higher than the threshold. The second uplink data after the hole;

In an example, the sending module 902 is configured to send the first uplink data of the first service on the first uplink data channel when the code rate is lower than the threshold value, and Sending the second uplink data punctured by the second service on the second uplink data channel.

In an example, the second uplink data after puncturing includes:

In an example, the determining module 901 is configured to determine the code rate of the second uplink data after the second service is punctured within the time interval T during which the first uplink scheduling authorization is received; The sending module 903 is configured to send a part of unpunctured data in the second uplink data on the second uplink data channel within the time interval T when the first uplink scheduling authorization is received.

In an example, the determining module 901 is configured to repeatedly transmit the second uplink data of the second service using semi-static configuration signaling configuration;

The determining the code rate of the second uplink data after the second service is punctured includes:

Wherein, the i-th repetition is any repetition of the second uplink data.

The function of the determining module 901 may be implemented by the processor of the terminal, and the functions of the sending module 902 and the receiving module 903 may be implemented by the transceiver of the terminal.

FIG. 12 shows a block diagram of an uplink data transmission device provided by an exemplary embodiment of the present disclosure, which is applied in a base station, and the device includes a sending module 1101, a determining module 1102, and a receiving module 1103.

The sending module 1101 is configured to send the first uplink scheduling authorization of the first service;

The determining module 1102 is configured to determine the second uplink data punctured by the second service when the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain. Bit rate;

A receiving module 1103, configured to receive first uplink data of the first service on the first uplink data channel when the code rate is higher than a threshold;

In an example, the receiving module 1103 is configured to receive the first uplink data of the first service on the first uplink data channel when the code rate is lower than the threshold value, Second, the second uplink data punctured by the second service is received on the uplink data channel.

The function of the determining module 1102 may be implemented by the processor of the access network device, and the functions of the sending module 1101 and the receiving module 1103 may be implemented by the transceiver of the access network device.

FIG. 13 shows a schematic structural diagram of a communication device (access network device or terminal) provided by an exemplary embodiment of the present disclosure. The terminal includes: a processor 101, a receiver 102, a transmitter 103, a memory 104, and a bus 105.

The processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.

The receiver 102 and the transmitter 103 may be implemented as a communication component, and the communication component may be a communication chip.

The memory 104 is connected to the processor 101 through a bus 105.

The memory 104 may be used to store at least one instruction, and the processor 101 is used to execute the at least one instruction to implement each step in the foregoing method embodiment.

In addition, the memory 104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. The volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .

In an exemplary embodiment, a computer-readable storage medium is also provided. The computer-readable storage medium stores at least one instruction, at least one program, code set, or instruction set, the at least one instruction, the At least one program, the code set, or the instruction set is loaded and executed by the processor to implement the uplink data transmission/reception method performed by the communication device provided in the foregoing method embodiments.

Those of ordinary skill in the art can understand that all or part of the steps in the foregoing embodiments can be implemented by hardware, or by a program instructing relevant hardware to be completed. The program can be stored in a computer-readable storage medium. The storage medium mentioned can be a read-only memory, a magnetic disk or an optical disk, etc.

The above descriptions are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection of the present disclosure. Within range.

Claims

A method for transmitting uplink data, characterized in that it is applied to user equipment UE, and the method includes:

Receiving the first uplink scheduling authorization of the first service;

Determine the first uplink data channel of the first service according to the first uplink scheduling authorization;

When the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain, determining the code rate of the second uplink data after the second service is punctured;

When the code rate is higher than the threshold value, sending the first uplink data of the first service on the first uplink data channel, and canceling the sending of the second uplink data punctured by the second service.
The method of claim 1, wherein the method further comprises:

When the code rate is lower than the threshold, the first uplink data of the first service is sent on the first uplink data channel, and the second service is sent on the second uplink data channel The second upstream data after puncturing.
The method according to claim 1 or 2, wherein the second uplink data after the second service puncturing includes:

In the second uplink data of the second service, the remaining uplink data after discarding the uplink data carried by the conflicting second uplink data channel;

or,

In the second uplink data of the second service, the uplink data carried on the conflicting second uplink data channel and the uplink data carried on the second uplink data channel that does not conflict afterwards are discarded and the remaining uplink data.
The method according to claim 1, wherein the time interval between receiving the first uplink scheduling authorization and determining the code rate of the second uplink data after the second service is punctured is T.
The method according to claim 4, wherein the determining the code rate of the second uplink data after the second service is punctured comprises:

Within the time interval T when the first uplink scheduling authorization is received, determine the code rate of the second uplink data after the second service is punctured, and send the second uplink data on the second uplink data channel. Part of the data that is not punched.
The method according to claim 1 or 2, wherein the second uplink data of the second service adopts repeated transmission configured by semi-static configuration signaling;

The determining the code rate of the second uplink data after the second service is punctured includes:

For the i-th repetition of the second uplink data, when the first uplink data channel of the first service and the second uplink data channel of the second service conflict in the time domain, the second service is determined The bit rate of the i-th repetition of the second uplink data after puncturing;

Wherein, the i-th repetition is any repetition of the second uplink data.
A method for receiving uplink data, characterized in that it is applied to a base station, and the method includes:

Sending the first uplink scheduling authorization of the first service;

When the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain, determining the code rate of the second uplink data after the second service is punctured;

When the code rate is higher than the threshold value, the first uplink data of the first service is received on the first uplink data channel.
The method according to claim 7, wherein the method further comprises:

When the code rate is lower than the threshold value, receive the first uplink data of the first service on the first uplink data channel, and receive the second service on the second uplink data channel The second upstream data after puncturing.
An uplink data transmission device, characterized in that it is applied to a UE, and the device includes: a determining module, a receiving module, and a sending module;

The receiving module is configured to receive the first uplink scheduling authorization of the first service;

The determining module is configured to determine the first uplink data channel of the first service according to the first uplink scheduling authorization;

The determining module is configured to determine the second uplink data channel of the second service after puncturing the second service when the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain. The bit rate of the data;

The sending module is configured to send the first uplink data of the first service on the first uplink data channel when the code rate is higher than the threshold value, and cancel sending the second service puncturing After the second uplink data.
The device according to claim 9, wherein the device further comprises:

The sending module is configured to send the first uplink data of the first service on the first uplink data channel when the code rate is lower than the threshold value, and the second uplink data The second uplink data punctured by the second service is sent on the channel.
The device according to claim 9 or 10, wherein the second uplink data after puncturing comprises:

In the second uplink data of the second service, the remaining uplink data after discarding the uplink data carried by the conflicting second uplink data channel;

Or, in the second uplink data of the second service, the uplink data carried on the conflicting second uplink data channel and the uplink data carried on the second uplink data channel that does not conflict afterwards are discarded. The remaining upstream data.
The apparatus according to claim 9, wherein the time interval between receiving the first uplink scheduling authorization and determining the bit rate of the second uplink data after the second service puncturing is T.
The device according to claim 12, wherein:

The determining module is configured to determine the code rate of the second uplink data after the second service is punctured within the time interval T during which the first uplink scheduling authorization is received;

The sending module is configured to send a part of data that is not punctured in the second uplink data on a second uplink data channel within a time interval T when the first uplink scheduling authorization is received.
The device according to claim 9 or 10, wherein:

The determining module is configured to repeatedly transmit the second uplink data of the second service using semi-static configuration signaling configuration; the determining the bit rate of the second uplink data after the second service is punctured includes :

For the i-th repetition of the second uplink data, when the first uplink data channel of the first service and the second uplink data channel of the second service conflict in the time domain, the second service is determined The bit rate of the i-th repetition of the second uplink data after puncturing;

Wherein, the i-th repetition is any repetition of the second uplink data.
A device for receiving uplink data, which is characterized in that it is applied to a base station, and the device includes: a sending module, a determining module, and a receiving module;

The sending module is configured to send the first uplink scheduling authorization of the first service;

The determining module is configured to determine the second uplink data punctured by the second service when the first uplink data channel of the first service conflicts with the second uplink data channel of the second service in the time domain Bit rate;

The receiving module is configured to receive first uplink data of the first service on the first uplink data channel when the code rate is higher than a threshold value.
The device according to claim 15, wherein the device further comprises:

The receiving module is configured to receive the first uplink data of the first service on the first uplink data channel when the code rate is lower than the threshold value, and use the first uplink data on the second uplink data channel The second uplink data punctured by the second service is received upward.
A terminal, characterized in that the terminal includes:

processor;

A transceiver connected to the processor;

A memory for storing executable instructions of the processor;

Wherein, the processor is configured to load and execute the executable instructions to implement the uplink data transmission method according to any one of claims 1 to 6.
An access network device, characterized in that the access network device includes:

processor;

A transceiver connected to the processor;

A memory for storing executable instructions of the processor;

Wherein, the processor is configured to load and execute the executable instructions to implement the uplink data receiving method according to any one of claims 7 to 8.
A computer-readable storage medium, characterized in that executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the one described in any one of claims 1 to 6 The uplink data transmission method, and/or the uplink data receiving method according to any one of claims 7 to 8.