CN112655168A - Transmission method, receiving method, device, terminal and medium for uplink data - Google Patents
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Abstract
The present disclosure discloses a transmission method, a receiving method, a device, a terminal and a medium for uplink data, wherein the method comprises the following steps: the UE receives a first uplink scheduling authorization of a first service; determining a first uplink data channel of a first service according to a first uplink scheduling authorization; when a first uplink data channel of a first service conflicts with a second uplink data channel of a second service in a time domain, determining the code rate of second uplink data after the second service is punched; and 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 sending the second uplink data after the second service is punched. When the UE simultaneously transmits the uplink data of the services with different priorities, the UE determines whether to continuously transmit the uplink data of the second service to the base station or not according to the relation between the code rate and the threshold value, so that the waste of transmission resources is reduced, and the interference in the network is reduced.
Description
The present disclosure relates to the field of wireless communications, and in particular, to a method, a device, a terminal, and a medium for transmitting uplink data.
The third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) defines three major directions for the 5G application scenario: mobile Broadband enhancement (eMBB), mass internet of things (mtc), Ultra-high Reliable and Ultra-Low Latency Communication (U RLLC). And in the process of uplink data transmission, the service types corresponding to the scenes have different priorities.
A Physical Uplink Shared CHannel (PUSCH) is responsible for carrying Uplink data of a service. When a User Equipment (UE) simultaneously performs uplink data transmission of different priority services, a situation that PUSCHs of different priority services collide on a time domain resource may occur. In the related art, the part of the low priority traffic with the collision of the PUSCH may be discarded, or the part of the low priority traffic with the collision of the PUSCH and the subsequent part may be discarded together, and only the unreleased PUSCH of the traffic is transmitted to the base station.
In the related art, if too many conflicting portions of two services result in too many discarded PUSCHs of a low priority service, a base station cannot correctly demodulate the PUSCH of the service, which wastes transmission resources and increases interference in a network.
Disclosure of Invention
The embodiment of the disclosure provides a transmission method, a receiving method, a device, a terminal and a medium for uplink data, which can be used for solving the problem that when uplink data channels of two services conflict in a time domain, too much uplink data of a low-priority service is discarded, so that a base station cannot correctly demodulate the uplink data of the service, and transmission resources are wasted. The technical scheme is as follows:
according to an aspect of the present disclosure, a method for transmitting uplink data is provided, where the method is applied in a UE, and the method includes:
receiving a first uplink scheduling authorization of a first service;
determining a first uplink data channel of the first service according to the first uplink scheduling grant;
when a first uplink data channel of the first service conflicts with a second uplink data channel of a second service in a time domain, determining a code rate of second uplink data of the second service after punching;
and when the code rate is higher than a threshold value, sending first uplink data of the first service on the first uplink data channel, and canceling sending second uplink data after the second service is punched.
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 second uplink data after the second service is punctured is sent on the second uplink data channel.
In an optional embodiment, the second punctured uplink data includes:
in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel with the conflict;
or the like, or, alternatively,
and in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel with the conflict and the uplink data carried by the second uplink data channel without the conflict.
In an optional embodiment, a time interval between the receiving of the first uplink scheduling grant and the determining of the code rate of the second uplink data after the second service is punctured is T.
In an optional embodiment, the determining a code rate of the second uplink data after the second service is punctured includes: and determining the code rate of the second uplink data after the second service is punched within the time interval T of receiving the first uplink scheduling authorization, and sending a part of un-punched data in the second uplink data on a second uplink data channel. In an optional embodiment, the second uplink data of the second service is transmitted repeatedly by using semi-static configuration signaling configuration; the determining the code rate of the second uplink data after the second service is punctured includes: for the ith repetition of the second uplink data, when a first uplink data channel of the first service conflicts with a second uplink data channel of the second service in a time domain, determining the code rate of the ith repetition of the second uplink data after the second service is punched; wherein the ith repetition is any repetition of the second uplink data.
According to an aspect of the present disclosure, there is provided a method for receiving uplink data, which is applied in a base station, the method including:
sending a first uplink scheduling grant of a first service;
when a first uplink data channel of the first service conflicts with a second uplink data channel of a second service in a time domain, determining a code rate of second uplink data of the second service after punching;
and when the code rate is higher than a threshold value, receiving first uplink data of the first service on the first uplink data channel.
In an optional embodiment, the method further comprises:
and when the code rate is lower than the threshold value, receiving first uplink data of the first service on the first uplink data channel, and receiving second uplink data of the second service after punching on the second uplink data channel.
According to an aspect of the present disclosure, an apparatus for transmitting uplink data is provided, where the apparatus is applied in a UE, and the apparatus includes: the device comprises a receiving module, a determining module and a sending module;
the receiving module is configured to receive a first uplink scheduling grant of a first service;
the determining module is configured to determine a first uplink data channel of the first service according to the first uplink scheduling grant;
the determining module is configured to determine a code rate of second uplink data after the second service is punctured when a first uplink data channel of the first service collides with a second uplink data channel of the second service in a time domain;
the sending module is configured to send first uplink data of the first service on the first uplink data channel and cancel sending second uplink data after the second service is punched when the code rate is higher than a threshold value;
in an optional embodiment, the apparatus further comprises:
the sending module is configured to send first uplink data of the first service on the first uplink data channel and send second uplink data after the second service is punctured on the second uplink data channel when the code rate is lower than the threshold value.
In an optional embodiment, the second punctured uplink data includes:
in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel with the conflict;
or, in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel where the collision occurs and the uplink data carried by the second uplink data channel where the collision does not occur later.
In an optional embodiment, the determining module is configured to repeat transmission of second uplink data of the second service by using semi-static configuration signaling configuration; the determining the code rate of the second uplink data after the second service is punctured includes:
for the ith repetition of the second uplink data, when a first uplink data channel of the first service conflicts with a second uplink data channel of the second service in a time domain, determining the code rate of the ith repetition of the second uplink data after the second service is punched;
wherein the ith repetition is any repetition of the second uplink data.
According to an aspect of the present disclosure, there is provided an uplink data receiving apparatus, which is applied in a base station, the apparatus including: the device comprises a sending module, a determining module and a receiving module;
the sending module is configured to send a first uplink scheduling grant of a first service;
the determining module is configured to determine a code rate of second uplink data after the second service is punctured when a first uplink data channel of the first service collides with a second uplink data channel of the second service in a time domain;
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 apparatus further comprises:
and the receiving module is configured to receive, on the first uplink data channel, first uplink data of the first service and receive, on the second uplink data channel, second uplink data after the second service is punctured, when the code rate is lower than the threshold value.
According to an aspect of the present disclosure, there is provided a terminal including: a processor; a transceiver coupled 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 method for transmitting uplink data according to the above aspect.
According to an aspect of the present disclosure, there is provided an access network device including: a processor; a transceiver coupled 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 method of receiving uplink data as described in the above aspect.
According to an aspect of the present disclosure, there is provided a computer-readable storage medium, in which executable instructions are stored, and the executable instructions are loaded and executed by the processor to implement the uplink data transmission method according to the above aspect and/or the uplink data reception method according to the above aspect.
The technical scheme provided by the embodiment of the disclosure at least comprises the following beneficial effects:
when the UE simultaneously transmits the uplink data of the services with different priorities, whether the second uplink data of the second service is continuously transmitted to the base station is determined according to the relation between the code rate and the threshold value, the situation that the second uplink data of the second service transmitted by the UE is discarded too much data is avoided, and transmission resources are saved.
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
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 uplink data repeat transmission provided in an exemplary embodiment of the present disclosure;
fig. 3 is a flowchart of a method for transmitting uplink data according to an exemplary embodiment of the present disclosure;
fig. 4 is a schematic diagram of a first uplink data channel of a first service and a second uplink data channel of a second service colliding in a time domain, according to an exemplary embodiment of the present disclosure;
fig. 5 is a flowchart of a method for receiving uplink data according to an exemplary embodiment 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 diagram illustrating uplink data punctured according to an example embodiment 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 apparatus for transmitting uplink data according to an exemplary embodiment of the present disclosure;
fig. 12 is a block diagram of an apparatus for receiving uplink data according to an exemplary embodiment of the present disclosure;
fig. 13 is a schematic structural diagram of a communication device according to an exemplary embodiment of the present disclosure.
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described 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, which may include: an access network 12 and a terminal 13.
Several access network devices 120 are included in access network 12. The access network equipment 120 may be a base station, which is a device deployed in an access network to provide wireless communication functions for terminals. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices with base station functionality may differ, for example in LTE systems, called eNodeB or eNB; in a 5G NR-U system, it is called gNodeB or gNB. The description of "base station" may change as communication technology evolves. For convenience, in this embodiment of the present application, the above-mentioned devices providing the terminal 13 with the wireless communication function are collectively referred to as access network devices.
The terminal 13 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem with wireless communication capability, as well as various forms of user equipment, Mobile Stations (MSs), terminals (terminal devices), and so forth. For convenience of description, the above-mentioned devices are collectively referred to as a terminal. The access network device 120 and the terminal 13 communicate with each other through some air interface technology, for example, a Uu interface.
In the 5G New Radio (NR) standard, for uplink resource scheduling, 2 resource scheduling modes are supported, one is dynamic resource scheduling, and the other is semi-static resource scheduling.
The dynamic resource scheduling refers to that a base station sends an uplink scheduling grant (UL grant) to a UE, and the UL grant includes time-frequency domain resources occupied by a scheduled uplink data channel. And the UE sends uplink data on the indicated time-frequency resources according to the indication of the UL grant.
The semi-static resource scheduling means that a base station sends a semi-static configuration signaling to a UE, and the semi-static configuration signaling contains time-frequency domain resources occupied by a scheduled uplink data channel. Semi-static resource scheduling is classified into 2 types in the NR standard. Type 1 is that the base station configures a periodic uplink data channel for the UE semi-statically at the radio resource control layer to transmit data. Type 2 is that the base station configures a periodic uplink data channel for the UE semi-statically at the radio resource control layer to transmit data, but needs downlink control information from the physical layer to activate.
The semi-static configuration signaling is further used for indicating that the uplink data adopts a repeat transmission mode. In one period, the UE may repeatedly transmit the same data Transport Block (TB) on the configured uplink data channel. Illustratively, as shown in FIG. 2, the period is 4 milliseconds. Within one period, the UE repeatedly transmits TB 1. In the next cycle, the UE repeatedly transmits TB 2.
The International Telecommunications Union (ITU) has classified the traffic in 5G networks into 3 major classes. The first type is eMMB, which is a 5G service type that is dedicated to serving mobile devices such as handsets. The second type is URLLC, which is mainly intended for industrial use and for autonomous vehicles. The third type is mMTC, which is a service type to be used in the scenes of Internet of things and all things interconnection, and the advantage of mMTC is that a large number of adjacent devices can simultaneously enjoy smooth communication connection.
Among these, U RLLC services typically require very high reliability and very low latency, and eMBB services typically require higher rates but do not require very low latency and very low error rates. Thus, the U RLLC service type is given a higher priority in comparison. And when the time-frequency domain resources of the two air interfaces conflict, the transmission of the URLLC service is preferentially ensured, and the UE is notified through the downlink control indication. The mechanism enables URLLC data to be sent with relatively high priority, and reliability of URLLC transmission is improved.
Fig. 3 shows a flowchart of a method for transmitting uplink data according to an exemplary embodiment of the present disclosure, which is applied to a UE. The method comprises the following steps:
the first uplink scheduling grant is one of Downlink Control Information (DCI), and is sent by the base station to the UE. The first uplink scheduling grant is used for indicating time-frequency domain resources occupied by the scheduled first uplink data channel.
the first uplink data channel carries first uplink data of a first service.
Optionally, the first service is a URLLC service.
optionally, the second service is an eMBB service, and the priority of the first service is higher than that of the second service. When the first service and the second service conflict on the air interface time frequency resource, the data of the first service is preferentially transmitted, and the second uplink data of the second service is punched.
The code rate is the ratio of the number of original information bits to the number of information bits after encoding.
If the bit number of a certain original information is N, the bit number of the information after coding is M. And the UE forms a data transmission block by carrying out the steps of constellation mapping, carrier modulation and the like on the coded M bit information, and the data transmission block is transmitted on an uplink data channel, so that the code rate of the 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).
Referring to fig. 4 in combination, fig. 4 is a schematic diagram illustrating that a first uplink data channel of a first service collides with a second uplink data channel of a second service in a time domain.
The first uplink data channel and the second uplink data channel of the second service collide in the time domain, which includes 2 cases: and the positions of part of the time domain symbols of the first uplink data channel are overlapped with the positions of the time domain symbols of the second service, and the positions of all the time domain symbols of the first uplink data channel are overlapped with the positions of the time domain symbols of the second service. As shown in (a) of fig. 4, a partial time domain symbol position of the first uplink data channel overlaps with a time domain symbol position of the second service. As shown in (b) of fig. 4, all time domain symbol positions of the first uplink data channel overlap with time domain symbol positions of the second service.
the threshold value is obtained by simulation experiments.
Illustratively, one possible threshold value in Long Term Evolution (LTE) is 0.932; one possible threshold in 5G NR is 0.95.
When the code rate of the second service is greater than the threshold, it means that the data punctured for the second service is too much, and the base station may not be able to correctly demodulate the second uplink data of the second service. When the code rate of the second service is smaller than the threshold value, it means that the base station may correctly demodulate the second uplink data of the second service.
In summary, according to the method provided in this embodiment, when the UE simultaneously performs uplink data transmission of services with different priorities, the UE determines whether to continue to send uplink data of a low-priority service to the base station according to the relationship between the code rate and the threshold, so as to reduce waste of transmission resources.
Fig. 5 is a flowchart illustrating a method for receiving uplink data according to an exemplary embodiment of the present disclosure, which is applied to a base station. The method comprises the following steps:
the first uplink scheduling grant is used for indicating time-frequency domain resources occupied by the scheduled first uplink data channel.
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 second uplink data channel with the conflict; or, in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel where the collision occurs and the uplink data carried by the second uplink data channel where the collision does not occur later.
in one example, when the code rate is lower than the threshold value, first uplink data of a first service is received on a first uplink data channel, and second uplink data of a second service after puncturing is received on a second uplink data channel.
In summary, in the method provided in this embodiment, when the UE simultaneously performs uplink data transmission of services with different priorities, the base station determines whether to receive uplink data of a service with a low priority according to a relationship between the code rate and the threshold, so as to reduce waste of transmission resources and reduce interference in network transmission.
Fig. 6 shows a flowchart of uplink data transmission provided by an exemplary embodiment of the present disclosure, which may be performed by a base station and a UE. The method comprises the following steps:
step 501, a base station sends a first uplink scheduling grant of a first service;
the first uplink scheduling grant is used for indicating time-frequency domain resources occupied by the scheduled first uplink data channel.
in one example, the punctured second uplink data includes: in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel with the conflict; or, in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel where the collision occurs and the uplink data carried by the second uplink data channel where the collision does not occur later.
As shown in fig. 7, the second uplink data channel of the second service collides with the first uplink data channel of the first service on symbols 8 to 11. In fig. 7 (a), the punctured second uplink data is the remaining uplink data after discarding the uplink data carried by the collided second uplink data channel, and the uplink data on the symbols 8 to 11 are discarded. In fig. 7 (b), the punctured second uplink data is the remaining uplink data obtained by discarding the uplink data carried by the second uplink data channel where the collision occurs and the uplink data carried by the second uplink data channel where the collision does not occur later, and the uplink data on the symbols 8 to 13 are discarded.
Step 503, the UE receives a first uplink scheduling grant of the first service;
and the UE receives the information in the first uplink scheduling grant and transmits first uplink data through a first uplink data channel on the designated time-frequency domain resource.
Step 504, the UE determines a first uplink data channel of the first service according to the first uplink scheduling grant;
in one example, a time interval between receiving the first uplink scheduling grant and determining the code rate of the second uplink data after the second service is punctured is T.
And within the time length of T, the UE demodulates the received first uplink scheduling authorization, and calculates the code rate of the second uplink data after the second service is punched according to a first uplink data channel indicated in the first uplink scheduling authorization.
Optionally, the time interval T is in units of symbols.
In one example, the time interval T is determined according to the processing capability of the user equipment UE.
The UE processing capability is used to measure the satisfaction of the terminal to the requirements. The UE processing capability includes data rate, transmission bandwidth, modulation scheme, number of antennas, and the like. The stronger the processing capability of the UE, the shorter the required time interval T; the weaker the UE processing capability, the shorter the required time interval T.
Step 504, when a first uplink data channel of the first service conflicts with a second uplink data channel of the second service in a time domain, the UE determines a code rate of second uplink data after the second service is punctured;
in one example, determining the code rate of the second uplink data after the second service is punctured includes: and determining the code rate of the second uplink data after the second service is punched within the time interval T of receiving the first uplink scheduling authorization, and sending a part of un-punched data in the second uplink data on a second uplink data channel.
Optionally, the UE receives a second uplink scheduling grant of a second service; and determining a second uplink data channel of the second service according to the second uplink scheduling authorization.
And the second uplink scheduling grant is used for indicating the time-frequency domain resources occupied by the scheduled second uplink data channel. And the UE receives the information in the second uplink scheduling grant and transmits second uplink data through a second uplink data channel on the designated time-frequency domain resource.
Optionally, the UE receives a semi-static configuration signaling of the second service; and determining a second uplink data channel of the second service according to the semi-static configuration signaling.
And according to the semi-static configuration signaling, the base station configures a periodic uplink data channel for the UE semi-statically at a radio resource control layer to transmit data. It should be noted that, if the UE has uplink data to transmit, the UE may put the semi-statically configured uplink data channel for transmission, and if the UE does not have uplink data to transmit, the semi-statically configured uplink data channel may be left empty.
The semi-static configuration signaling is further used for indicating that the second service adopts a repeated transmission mode.
In one example, the second uplink data of the second service is transmitted repeatedly by adopting a semi-static configuration signaling configuration; the determining the code rate of the second uplink data after the second service is punctured includes: for the ith repetition of the second uplink data, when a first uplink data channel of the first service conflicts with a second uplink data channel of the second service in a time domain, determining the code rate of the ith repetition of the second uplink data after the second service is punched; wherein the ith repetition is any repetition of the second uplink data.
And under the mode that the second service adopts repeated transmission, aiming at the ith repetition of the TB of the second service, time domain resource conflict occurs, and the UE calculates the code rate of the ith repetition after punching. If the code rate of the ith repeated punching of the TB of the second service 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 ith repeated punching of the TB of the second uplink data channel; and if the number of the transmission channels is less than the threshold value, transmitting first uplink data of the first service on the first uplink data channel, and transmitting the ith repetition of the punched TB on the second uplink data channel.
the code rate is higher than the threshold value, which means that the second service has a lot of punctured second uplink data, and the base station is likely to be unable to successfully demodulate the punctured second uplink data.
Step 506, when the code rate is higher than the threshold value, 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 no collision occurs, and the base station will not demodulate the part of the second uplink data of the second service.
With combined reference to fig. 8, fig. 8 illustrates a schematic diagram of uplink data transmission provided by an exemplary embodiment of the present disclosure.
Illustratively, in 5G NR, one slot contains 14 symbols, and the threshold value of the code rate is 0.95. The original information bit number of the second uplink data of the second service is 224 bits, and the information bit number after encoding is 448 bits. And the second uplink data with 48 bits is transmitted on the time domain resources of the symbols 2 to 13 through steps of modulation and the like. At this time, the code rate of the second uplink data is 0.5.
And after receiving the second uplink scheduling grant of the second service, the UE transmits second uplink data on symbols 2 to 13. The UE receives the first uplink scheduling grant for the first service on symbol 1, and transmits the first uplink data on symbols 8 to 11. The value of the time interval T is set to 2 symbols. And the adopted puncturing mode is to discard the uplink data carried on the second uplink data channel with conflict and the second uplink data channel without conflict.
The first uplink data channel and the second uplink data channel transmit collisions, and the second uplink data on symbols 8 to 13 is punctured. The time interval T is 2 symbols, and the UE calculates the code rate of the second uplink data after puncturing to be 1 on the symbol 3. The code rate of the second uplink data after the punching is larger than the threshold value 0.95, after the UE finishes sending the second uplink data of the second uplink service on the symbol 3, the UE cancels sending the second uplink data after the punching on the second uplink data channel, and sends the first uplink data on the symbols 8 to 13 through the first uplink data channel.
When the base station sends the first uplink scheduling grant, it is determined that the second uplink data on the symbols 8 to 13 to be punctured for the second service are to be punctured, and the code rate of the punctured second uplink data is calculated to be 1. And the code rate is higher than the threshold value, 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 punctured second uplink data. However, the base station has received the part of the second uplink data transmitted on symbol 2 by the second service, and the base station does not demodulate the part of the second uplink data.
Fig. 9 shows a flowchart of uplink data transmission provided by an exemplary embodiment of the present disclosure, and the method may be performed by a base station and a UE. In one possible case, steps 506 and 507 in fig. 6 are replaced by:
step 508, when the code rate is lower than the threshold, send the first uplink data of the first business on the first uplink data channel, send the second uplink data after the second business punches on the second uplink data channel;
the code rate is lower than the threshold value, which means that the second uplink data punctured for the second service is not much, 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 after the second service is punctured on the second uplink data channel;
after the puncturing, the first uplink data channel and the second uplink data channel will not have time domain collision, so the base station can receive the first uplink data of the first service on the first uplink data channel, and can also receive the second uplink data of the second service after the puncturing on the second uplink data channel.
Referring to fig. 10 in combination, fig. 10 illustrates a schematic diagram of uplink data transmission provided by an exemplary embodiment of the present disclosure.
Illustratively, in 5G NR, one slot contains 14 symbols, and the threshold value of the code rate is 0.95. The original information bit number of the second uplink data of the second service is 224 bits, and the information bit number after encoding is 448 bits. And the second uplink data of 448 bits is transmitted on the time domain resources of the symbols 2 to 13 through steps of modulation and the like. At this time, the code rate of the second uplink data is 0.5.
And the UE transmits second uplink data on the symbols 2 to 13 according to the semi-static configuration signaling. The UE receives the first uplink scheduling grant for the first service on symbol 7, determines that the collision is sent on symbol 13, and punctures the second uplink data on symbol 13. The value of the time interval T is set to 2 symbols. And the adopted puncturing mode is to discard the uplink data carried on the second uplink data channel with conflict and the second uplink data channel without conflict.
The time interval T is 2 symbols, and the UE calculates the code rate of the punctured second uplink data to be 0.545 on the symbol 9. And the code rate of the second uplink data after the punching is smaller than a threshold value of 0.95, the UE sends the second uplink data after the punching through a second uplink data channel on symbols 2 to 12, and sends the first uplink data through a first uplink data channel on a symbol 13.
When the base station sends the first uplink scheduling grant, it is determined that the second uplink data on the symbol 13 to be punctured for the second service is, and the code rate of the punctured second uplink data is calculated to be 0.545. And when the code rate is smaller than the threshold value, 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 punched second uplink data sent by the UE through the second uplink data channel.
Fig. 11 is a block diagram of an apparatus for transmitting uplink data according to an exemplary embodiment of the present disclosure, where the apparatus is applied to a UE, and the apparatus includes: a determining module 901, a sending module 902 and a receiving module 903.
The receiving module 903 is configured to receive a first uplink scheduling grant of a first service;
the determining module 901 is configured to determine a first uplink data channel of the first service according to the first uplink scheduling grant;
the determining module 901 is configured to determine a code rate of second uplink data after the second service is punctured when a first uplink data channel of the first service collides with a second uplink data channel of the second service in a time domain;
the sending module 902 is configured to send, on the first uplink data channel, first uplink data of the first service when the code rate is higher than a threshold value, and cancel sending of second uplink data after the second service is punctured;
in an example, the sending module 902 is configured to send, when the code rate is lower than the threshold value, first uplink data of the first service on the first uplink data channel, and send, on the second uplink data channel, second uplink data after puncturing the second service.
In one example, the punctured second uplink data includes:
in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel with the conflict;
or, in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel where the collision occurs and the uplink data carried by the second uplink data channel where the collision does not occur later.
In one example, a time interval between the receiving of the first uplink scheduling grant and the determining of the code rate of the second uplink data after the second service is punctured is T.
In an example, the determining module 901 is configured to determine, within a time interval T when the first uplink scheduling grant is received, a code rate of the second uplink data after the second service is punctured; the sending module 903 is configured to send a part of non-punctured data in the second uplink data on a second uplink data channel within the time interval T when the first uplink scheduling grant is received.
In an example, the determining module 901 is configured to adopt repeated transmission configured by semi-static configuration signaling for the second uplink data of the second service;
the determining the code rate of the second uplink data after the second service is punctured includes:
for the ith repetition of the second uplink data, when a first uplink data channel of the first service conflicts with a second uplink data channel of the second service in a time domain, determining the code rate of the ith repetition of the second uplink data after the second service is punched;
wherein the ith repetition is any repetition of the second uplink data.
The functions of the determining module 901 may be implemented by a processor of the terminal, and the functions of the transmitting module 902 and the receiving module 903 may be implemented by a transceiver of the terminal.
Fig. 12 is a block diagram of an uplink data transmission apparatus according to an exemplary embodiment of the present disclosure, which is applied in a base station, and the apparatus includes: a sending module 1101, a determining module 1102 and a receiving module 1103.
A sending module 1101, configured to send a first uplink scheduling grant of a first service;
a determining module 1102, configured to determine a code rate of second uplink data after the second service is punctured when a first uplink data channel of the first service collides with a second uplink data channel of the second service in a time domain;
a receiving module 1103, configured to receive, on the first uplink data channel, first uplink data of the first service when the code rate is higher than a threshold value;
in an example, the receiving module 1103 is configured to receive, on the first uplink data channel, first uplink data of the first service and receive, on the second uplink data channel, second uplink data after puncturing the second service, when the code rate is lower than the threshold value.
The functions of the determining module 1102 may be implemented by a processor of the access network device, and the functions of the transmitting module 1101 and the receiving module 1103 may be implemented by a transceiver of the access network device.
Fig. 13 shows a schematic structural diagram of a communication device (access network device or terminal) provided in an exemplary embodiment of the present disclosure, where 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 executing software programs and modules.
The receiver 102 and the transmitter 103 may be implemented as one communication component, which may be a communication chip.
The memory 104 is connected to the processor 101 through a bus 105.
The memory 104 may be configured to store at least one instruction for execution by the processor 101 to implement the various steps in the above-described method embodiments.
Further, the memory 104 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: magnetic or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), Static Random 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 further provided, and at least one instruction, at least one program, a code set, or a set of instructions is stored in the computer readable storage medium, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by the processor to implement the method for transmitting/receiving uplink data executed by a communication device provided in the above-mentioned method embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.
Claims (19)
- A method for transmitting uplink data is applied to a User Equipment (UE), and the method comprises the following steps:receiving a first uplink scheduling authorization of a first service;determining a first uplink data channel of the first service according to the first uplink scheduling grant;when a first uplink data channel of the first service conflicts with a second uplink data channel of a second service in a time domain, determining a code rate of second uplink data of the second service after punching;and when the code rate is higher than a threshold value, sending first uplink data of the first service on the first uplink data channel, and canceling sending second uplink data after the second service is punched.
- The method of claim 1, further comprising:and when the code rate is lower than the threshold value, sending first uplink data of the first service on the first uplink data channel, and sending second uplink data of the second service after punching on the second uplink data channel.
- The method according to claim 1 or 2, wherein the second uplink data after puncturing for the second service comprises:in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel with the conflict;or the like, or, alternatively,and in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel with the conflict and the uplink data carried by the second uplink data channel without the conflict.
- The method of claim 1, wherein a time interval between the receiving of the first uplink scheduling grant and the determining of the code rate of the second uplink data after the second service is punctured is T.
- The method of claim 4, wherein the determining the code rate of the second uplink data after the second service is punctured comprises:and determining the code rate of the second uplink data after the second service is punched within the time interval T of receiving the first uplink scheduling authorization, and sending a part of un-punched data in the second uplink data on a second uplink data channel.
- The method according to claim 1 or 2, wherein the second uplink data of the second service is transmitted repeatedly with a semi-static configuration signaling configuration;the determining the code rate of the second uplink data after the second service is punctured includes:for the ith repetition of the second uplink data, when a first uplink data channel of the first service conflicts with a second uplink data channel of the second service in a time domain, determining the code rate of the ith repetition of the second uplink data after the second service is punched;wherein the ith repetition is any repetition of the second uplink data.
- A method for receiving uplink data, which is applied to a base station, the method comprising:sending a first uplink scheduling grant of a first service;when a first uplink data channel of the first service conflicts with a second uplink data channel of a second service in a time domain, determining a code rate of second uplink data of the second service after punching;and when the code rate is higher than a threshold value, receiving first uplink data of the first service on the first uplink data channel.
- The method of claim 7, further comprising:and when the code rate is lower than the threshold value, receiving first uplink data of the first service on the first uplink data channel, and receiving second uplink data of the second service after punching on the second uplink data channel.
- An apparatus for transmitting uplink data, applied in a UE, the apparatus comprising: the device comprises a determining module, a receiving module and a sending module;the receiving module is configured to receive a first uplink scheduling grant of a first service;the determining module is configured to determine a first uplink data channel of the first service according to the first uplink scheduling grant;the determining module is configured to determine a code rate of second uplink data after the second service is punctured when a first uplink data channel of the first service collides with a second uplink data channel of the second service in a time domain;and the sending module is configured to send first uplink data of the first service on the first uplink data channel and cancel sending second uplink data after the second service is punched when the code rate is higher than a threshold value.
- The apparatus of claim 9, further comprising:the sending module is configured to send first uplink data of the first service on the first uplink data channel and send second uplink data after the second service is punctured on the second uplink data channel when the code rate is lower than the threshold value.
- The apparatus according to claim 9 or 10, wherein the punctured second uplink data comprises:in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel with the conflict;or, in the second uplink data of the second service, discarding the uplink data carried by the second uplink data channel where the collision occurs and the uplink data carried by the second uplink data channel where the collision does not occur later.
- The apparatus of claim 9, wherein a time interval between the receiving of the first uplink scheduling grant and the determining of the code rate of the second uplink data after the second service is punctured is T.
- The apparatus of claim 12,the determining module is configured to determine, within a time interval T when the first uplink scheduling grant is received, a code rate of second uplink data after the second service is punctured;the transmitting module is configured to transmit a part of unpunctured data in the second uplink data on a second uplink data channel within a time interval T when the first uplink scheduling grant is received.
- The apparatus of claim 9 or 10,the determining module is configured to adopt repeated transmission configured by a semi-static configuration signaling for second uplink data of the second service; the determining the code rate of the second uplink data after the second service is punctured includes:for the ith repetition of the second uplink data, when a first uplink data channel of the first service conflicts with a second uplink data channel of the second service in a time domain, determining the code rate of the ith repetition of the second uplink data after the second service is punched;wherein the ith repetition is any repetition of the second uplink data.
- An uplink data receiving apparatus, applied in a base station, the apparatus comprising: the device comprises a sending module, a determining module and a receiving module;the sending module is configured to send a first uplink scheduling grant of a first service;the determining module is configured to determine a code rate of second uplink data after the second service is punctured when a first uplink data channel of the first service collides with a second uplink data channel of the second service in a time domain;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 apparatus of claim 15, further comprising:and the receiving module is configured to receive, on the first uplink data channel, first uplink data of the first service and receive, on the second uplink data channel, second uplink data after the second service is punctured, when the code rate is lower than the threshold value.
- A terminal, characterized in that the terminal comprises:a processor;a transceiver coupled 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 method for transmitting uplink data according to any one of claims 1 to 6.
- An access network device, characterized in that the access network device comprises:a processor;a transceiver coupled 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 method of receiving upstream data according to any one of claims 7 to 8.
- A computer-readable storage medium, wherein the computer-readable storage medium stores executable instructions, which are loaded and executed by the processor, to implement the method for transmitting upstream data according to any one of claims 1 to 6, and/or the method for receiving upstream data according to any one of claims 7 to 8.
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| PCT/CN2019/100028 WO2021026691A1 (en) | 2019-08-09 | 2019-08-09 | Uplink data transmission method and receiving method, apparatuses, terminal, and medium |
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| US20180302919A1 (en) * | 2015-12-24 | 2018-10-18 | Huawei Technologies Co., Ltd. | Uplink retransmitted data sending method, apparatus, and system |
| CN109618362A (en) * | 2019-02-15 | 2019-04-12 | 中国联合网络通信集团有限公司 | A kind of communication means and equipment |
| WO2019137467A1 (en) * | 2018-01-12 | 2019-07-18 | 华为技术有限公司 | Uplink information transmission method and apparatus |
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| BR112018070657A2 (en) * | 2016-04-08 | 2019-02-05 | Idac Holdings Inc | wireless transmission / reception unit and method |
| US20180035459A1 (en) * | 2016-07-29 | 2018-02-01 | Huawei Technologies Co., Ltd. | Coexistence of Grant-Based and Grant-Free Uplink Transmissions in a Channel |
| WO2019098697A1 (en) * | 2017-11-16 | 2019-05-23 | Samsung Electronics Co., Ltd. | Method for processing uplink control information and terminal |
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| US20180302919A1 (en) * | 2015-12-24 | 2018-10-18 | Huawei Technologies Co., Ltd. | Uplink retransmitted data sending method, apparatus, and system |
| WO2019137467A1 (en) * | 2018-01-12 | 2019-07-18 | 华为技术有限公司 | Uplink information transmission method and apparatus |
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