CN112399616B - Uplink scheduling resource multi-configuration data transmission method, equipment and system - Google Patents
Uplink scheduling resource multi-configuration data transmission method, equipment and system Download PDFInfo
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- CN112399616B CN112399616B CN201910755167.1A CN201910755167A CN112399616B CN 112399616 B CN112399616 B CN 112399616B CN 201910755167 A CN201910755167 A CN 201910755167A CN 112399616 B CN112399616 B CN 112399616B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Abstract
The application discloses a method, equipment and a system for transmitting uplink scheduling resource multi-configuration data. When the uplink scheduling resource comprises a plurality of configurations, the transmission cycle and the frequency resource of the uplink scheduling resource of the plurality of configurations are the same, and the starting time is different, the method of the application is that the uplink control information is multiplexed in the currently configured uplink data; the uplink control information comprises 1 st indication information; the 1 st indication information is used to identify the current configuration. The application also comprises terminal equipment, network equipment and a system applying the method. The method and the device solve the problem that the network equipment cannot distinguish a plurality of configured uplink scheduling data.
Description
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to a method, a device, and a system for transmitting uplink scheduling resource multi-configuration data.
Background
In order to better support low-delay data transmission, the NR introduces uplink scheduling-free transmission in the uplink. In the uplink data transmission based on the first type of configuration grant, all transmission resources and transmission parameters including time domain resources, frequency domain resources, reference signals for demodulation (DM RS), open loop power control, Modulation and Coding Scheme (MCS), waveforms, Redundancy Versions (RV), repetition times, frequency hopping, HARQ process number, and the like are configured by high-level parameters. After receiving the high-level parameters, the UE can immediately use the configured transmission parameters to perform uplink data transmission on the configured time-frequency resources.
Due to the diversity of the service types, multiple configured resources are required to meet the requirements of different services. For example, the following two traffic types: 1. semi-persistent periodic traffic such as LTE and NR V2X; 2. enhancing low latency high reliability (eURLLC) type services, such as remote driving. The traffic model for both traffic types can be abstracted as half-cycle behavior, such as the cycle being constant, the packet size being rapidly changing, or both the packet size and the cycle being changing. Because the arrival time, the period or the transmission length of the data flow are different, a plurality of configurations are used for meeting different flow conditions, and a plurality of parameters of different configurations are different, so that the service quality requirements of different service flows are met, and the rapid activation and deactivation of certain configurations are facilitated to better adapt to the flow conditions.
However, under the multi-configuration condition, how the network device knows which configuration resource the terminal transmits the uplink data on is a problem to be solved. Due to the multiple choices of the starting position, the retransmission data in one configuration and the starting data or the retransmission data in another configuration collide in time, and the redundancy versions are confused.
Disclosure of Invention
The application provides a method, equipment and a system for transmitting uplink scheduling resource multi-configuration data, which solve the problem of communication between terminal equipment and network equipment under the condition of multi-configuration uplink scheduling resources.
In a first aspect, an embodiment of the present application provides a method for transmitting multiple configuration data of uplink scheduling resources, where the method is used for a terminal device, and when an uplink scheduling resource includes multiple configurations, the multiple configured uplink scheduling resources have the same transmission cycle and frequency resource, and different starting times; the uplink control information comprises 1 st indication information; the 1 st indication information is used for identifying the currently configured uplink scheduling resource.
Preferably, the 1 st indication information is configuration identifiers, and each configuration identifier corresponds to one configuration.
Preferably, the 1 st indication information includes at least one of a new data indication and a redundancy version; the new data indication is used for indicating whether the currently configured uplink data is new data or retransmission data; and the redundancy version is used for indicating the retransmission times of the currently configured uplink data.
Preferably, the corresponding HARQ offset value is determined according to the configuration identifier, and the relationship between the configuration identifier and the HARQ offset value is preset or configured through signaling; the HARQ process ID may be further calculated.
In any of the above embodiments, preferably, the uplink control information further includes 2 nd indication information, where the 2 nd indication information indicates a HARQ process ID value or a HARQ offset value.
In any of the embodiments of the first aspect, preferably, after performing rate matching on uplink control information and uplink data, the uplink control information is mapped to a symbol after a first DM RS of the uplink data.
In any one of the embodiments of the first aspect, preferably, the redundancy version sequence number used by the terminal in currently configuring the uplink data that is repeatedly sent is configured by a higher layer parameter.
In any embodiment of the first aspect, preferably, a code rate compensation factor is introduced to reduce the code rate of the uplink control information.
In a second aspect, an embodiment of the present application provides a method for transmitting multiple configuration data of uplink scheduling resources, where the method is used for a network device, and when an uplink scheduling resource includes multiple configurations, the transmission cycles and frequency resources of the multiple configured uplink scheduling resources are the same, and the starting times are different, and the method in the present application is: demultiplexing and receiving uplink control information in currently configured uplink data; the uplink control information comprises 1 st indication information; the 1 st indication information is used for identifying the currently configured uplink scheduling resource.
Preferably, the 1 st indication information is configuration identifiers, and each configuration identifier corresponds to one configuration.
Preferably, the 1 st indication information includes at least one of a new data indication and a redundancy version; the new data indication is used for indicating whether the currently configured uplink data is new data or retransmission data; and the redundancy version is used for indicating the retransmission times of the currently configured uplink data.
And determining a corresponding HARQ offset value according to the configuration identifier, wherein the relationship between the configuration identifier and the HARQ offset value is preset or configured through signaling, and the HARQ process ID can be calculated.
In an embodiment of any of the above second aspects, the uplink control information further includes 2 nd indication information, and the 2 nd indication information indicates a HARQ process ID value or a HARQ offset value.
In any embodiment of the foregoing second aspect, preferably, the demultiplexing is performed by: and searching uplink control information on a symbol behind the first DM RS of the uplink data.
In any of the embodiments of the second aspect, preferably, the redundancy version sequence number used by the network device to identify the uplink data configured to be repeatedly transmitted currently is configured by a higher-layer parameter.
In any of the embodiments of the second aspect, preferably, a plurality of uplink data are received, and redundant information is merged according to the 1 st indication information and/or the 2 nd indication information.
In a third aspect, an embodiment of the present application provides a terminal device, configured to implement the method according to any one of the embodiments of the first aspect of the present application, where the terminal device includes a control module and a sending module; the control module is used for generating the uplink control information; and the sending module is used for sending the uplink control information and the uplink data.
In a fourth aspect, an embodiment of the present application further provides a network device, configured to be used in the method according to any one of the embodiments of the second aspect of the present application, where the network device includes a receiving module and a determining module; the receiving module is configured to receive the uplink data and the uplink control information; and the determining module is used for identifying the 1 st indication information and determining the HARQ process ID and the currently configured uplink scheduling resource.
In a fifth aspect, an embodiment of the present application further provides a mobile communication system, which includes at least one terminal device according to the third aspect of the present application and at least one network device according to the fourth aspect of the present application.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
when the terminal configures multiple scheduling resources, the network device needs to know which scheduling resource the terminal specifically transmits on, so as to receive and combine uplink data.
The method for multiplexing the uplink control information on the plurality of retransmitted uplink data is introduced, the arrangement method for multiplexing the uplink control information on the uplink data is defined, the sending positions of the network equipment and the terminal to the uplink control information are unified, the network equipment can be informed of which scheduling retransmission the corresponding data is, whether the corresponding data is new data or retransmitted data and the redundancy version number of the corresponding uplink data, and the problem that the network equipment cannot distinguish the plurality of configured uplink scheduling data is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic diagram of a multi-configured uplink scheduling resource;
fig. 2 is a schematic diagram of multiple configured uplink scheduling resources, uplink data and uplink control information;
fig. 3 is a schematic diagram of multiplexing uplink control information in uplink data;
FIG. 4 is a flow chart of the method of the present invention for a terminal device;
FIG. 5 is a flow chart of the method of the present invention for a network device;
FIG. 6 is a diagram of a mobile communication system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a multi-configured uplink scheduling resource.
The multiple configured uplink scheduling resources may reduce the transmission delay of randomly arriving uplink data, as shown in fig. 1: when a terminal has low-delay service transmission, 4 uplink scheduling resources (Config 1-4) are configured, the transmission period and the frequency resources of the uplink scheduling resources are the same, and the transmission starting time is different, so that the low-delay service can randomly reach the resource which can find uplink transmission with the lowest delay. And the terminal selects the most appropriate uplink scheduling resource according to the service transmission requirement.
R15 prior art only configures a scheduling resource for a terminal, and does not require a network device (e.g. a base station) to distinguish on which scheduling resource the terminal transmits; however, in the case where multiple scheduling resources are configured for the terminal, the network device needs to know which scheduling resource the terminal specifically transmits on in order to receive and combine uplink data.
The single configured scheduling resource, the redundancy version number, is associated with the transmission timing of one cycle, so the network device can identify the redundancy version number of the transmission timing. The initial sending time of a plurality of configuration resources is flexible, and how to inform the network equipment of the redundancy version number is also a problem to be solved.
Specifically, since the starting positions of the plurality of allocated scheduling resources are flexible, the retransmission data may be lost on the network device side, and the network device does not know which transmissions are initial transmissions and which are retransmission transmissions, and which retransmission data are combined, for example, the network device receives uplink data at the 3 rd transmission opportunity shown in fig. 1, and does not know whether the retransmission data is retransmission data of the 1 st uplink scheduling resource allocation (Config 1) (3 rd transmission of Config 1), retransmission data of the 2 nd uplink scheduling resource (Config 2) (2 nd transmission of Config 2), or initial transmission data of the 3 rd uplink scheduling resource (Config 3) (1 st transmission of Config 3). Therefore, the terminal device notifies the network device whether the uplink data is new data or retransmitted data.
Fig. 2 is a schematic diagram of multiple configured uplink scheduling resources, uplink data, and uplink control information.
When the uplink scheduling resource comprises a plurality of configurations, the transmission cycle and the frequency resource of the uplink scheduling resource of the plurality of configurations are the same, and the starting time is different, the method of the application is that the uplink control information is multiplexed in the currently configured uplink data; the uplink control information comprises 1 st indication information; the 1 st indication information is used for identifying the currently configured uplink scheduling resource.
For example, the 1 st indication information includes at least one of a new data indication and a redundancy version; the new data indication is used for indicating whether the currently configured uplink data is new data or retransmission data; and the redundancy version is used for indicating the retransmission times of the currently configured uplink data. The 2 nd indication information is an HARQ process ID value, for example, the terminal sends uplink control information to the network device, where the uplink control information includes: HARQ process ID, new data indication, redundancy version. The uplink control information is multiplexed in the uplink data of the configured N scheduling resources, the multiplexing mode is a rate matching method, and a bit sequence subjected to the rate matching of the uplink control information is mapped on a data symbol after the first DM RS of the uplink data according to a frequency domain priority mode. And a code rate compensation factor is introduced, so that the code rate of the uplink control information is reduced, and the transmission reliability of the uplink control information is improved. And configuring the code rate compensation factor by a high layer.
For another example, the 1 st indication information is configuration identifiers, and each configuration identifier corresponds to one configuration, that is, corresponds to the configured uplink scheduling resource. For example, to reduce the overhead of the uplink control information, the uplink control information only needs to send which configuration specifically is, and for example, only log is needed for uplink resources scheduled by N configurations 2 N bits may indicate to the network device, the particular scheduling configuration N (N ═ 1, 2]). After knowing the nth configuration scheduling, the network device distinguishes HARQ process ID numbers of different configurations by using HARQ offset values (HARQ _ offset) of different configurations, it should be noted that the corresponding HARQ offset value is determined according to the configuration identifier, and the relationship between the configuration identifier and the HARQ offset value is preset or configured through signaling. In addition, the RV sequence number used by the terminal to perform K times of repeated transmissions is configured by higher layer parameters. The RV associated with the kth transmission opportunity is determined by [ mod (n-1,4) +1 in the configured RV sequence]And (4) determining values.
In the embodiment of the present application, the HARQ process ID value or the HARQ offset value may be represented by the 2 nd indication information; when the 1 st indication information is the configuration identifier, the HARQ process ID value may also be calculated according to a preset HARQ offset value corresponding to the configuration identifier.
As shown in fig. 2, the network device configures at most 8 authorized schedules, configures 8 groups of high-level parameters for the authorized schedules, and the terminal sends uplink data on resources corresponding to any 1 group in 4 groups of parameters (Config 1-4), where the number of retransmissions is 4.
Fig. 3 is a schematic diagram of multiplexing uplink control information in uplink data.
And mapping the bit sequence subjected to the rate matching of the uplink control information on a data symbol after the 1 st uplink reference signal of the uplink data according to a frequency domain priority mode. For example, the data block in fig. 3, the horizontal axis represents the time domain and the vertical axis represents the frequency domain. The uplink control information (gray information body) is positioned on the data symbol behind the 1 st uplink reference signal, and the frequency is arranged from low to high.
Fig. 4 is a flowchart of the method of the present invention applied to a terminal device.
An embodiment of the present application provides a method for transmitting multiple configuration data of uplink scheduling resources, which is used for a terminal device, when an uplink scheduling resource includes multiple configurations, a transmission cycle and a frequency resource of the multiple configured uplink scheduling resources are the same, and starting times are different, and the method of the present application includes the following steps:
the uplink control information comprises 1 st indication information; the 1 st indication information is used for identifying the currently configured uplink scheduling resource.
For example, the 1 st indication information is a configuration identifier, and each configuration identifier corresponds to one configuration, that is, a group of uplink scheduling resources. For another example, the 1 st indication information includes at least one of a new data indication and a redundancy version; the new data indication is used for indicating whether the currently configured uplink data is new data or retransmission data; and the redundancy version is used for indicating the retransmission times of the currently configured uplink data.
Preferably, the uplink control information further includes 2 nd indication information, where the 2 nd indication information represents a HARQ process ID value or a HARQ offset value.
Preferably, the corresponding HARQ offset value is determined according to the configuration identifier, and the relationship between the configuration identifier and the HARQ offset value is preset or configured through signaling. Further, the HARQ process ID is calculated by equation (2) according to the HARQ offset value.
In any embodiment of the present application, preferably, the redundancy version sequence number used by the terminal to currently configure the uplink data that is repeatedly transmitted is configured by a higher-layer parameter.
102, multiplexing uplink control information in currently configured uplink data;
for example, after performing rate matching on the uplink control information and the uplink data, the uplink control information is mapped to a symbol after the first DM RS of the uplink data (see the embodiment shown in fig. 3).
In any embodiment of the present application, preferably, a code rate compensation factor is introduced to reduce the code rate of the uplink control information.
And a code rate compensation factor is introduced, so that the code rate of the uplink control information is reduced, and the transmission reliability of the uplink control information is improved. Specifically, the calculation formula of the number of occupied REs of the uplink control information is as follows:
Q′ UCI is the code rate of the uplink control information. In the formula
For the rate compensation factor, other variables and expressions are found in section 6.3.2.4.1.1 of the TS 38.213 standard (vf.6.0).
Preferably, the code rate compensation factor used by the terminal in the current configuration is configured by a higher layer parameter.
103, sending uplink control information and uplink data;
for example, when transmitting uplink data, the terminal transmits uplink control information of the corresponding data. The uplink control information includes HARQ process number, new data indication and redundancy version information. The uplink control information in this embodiment includes HARQ process number (4 bits), new data indicator (1 bit), redundancy version (2 bits), and 7 bits in total.
For another example, when the terminal sends uplink data, the terminal sends uplink control information of corresponding data, where the uplink control information includes 2-bit information used to indicate a configuration identifier of the uplink data specifically sent to the network device terminal.
Fig. 5 is a flow chart of the method of the present invention for a network device.
An embodiment of the present application provides a method for transmitting multiple configuration data of uplink scheduling resources, which is used for a network device, when an uplink scheduling resource includes multiple configurations, a transmission cycle and a frequency resource of the multiple configured uplink scheduling resources are the same, and starting times are different, and the method of the present application includes the following steps:
demultiplexing and receiving uplink control information in currently configured uplink data;
preferably, the demultiplexing mode is as follows: and searching uplink control information on a symbol behind the first DM RS of the uplink data.
the uplink control information comprises 1 st indication information; the 1 st indication information is used for identifying the currently configured uplink scheduling resource.
Preferably, the 1 st indication information is a configuration identifier, and each configuration corresponds to one configuration identifier. Or, the 1 st indication information includes at least one of a new data indication and a redundancy version; the new data indication is used for indicating whether the currently configured uplink data is new data or retransmission data; and the redundancy version is used for indicating the retransmission times of the currently configured uplink data.
And the network equipment determines whether the plurality of uplink data use the same uplink scheduling resource configuration according to the 1 st indication information.
Preferably, the corresponding HARQ offset value is determined according to the configuration identifier, and the relationship between the configuration identifier and the HARQ offset value is preset or configured through signaling. Further, the HARQ process ID is calculated by equation (2) according to the HARQ offset value.
Preferably, the uplink control information further includes 2 nd indication information, where the 2 nd indication information represents a HARQ process ID value or a HARQ offset value. For example, the 2 nd indication information is an HARQ process ID value. Or, the 2 nd indication information is HARQ offset values, and each configuration corresponds to one HARQ offset value (HARQ _ offset). After knowing the nth configuration scheduling, the network device distinguishes HARQ process ID numbers of different configurations by using HARQ _ offsets of different configurations, so that resource pools of each configured HARQ process ID are independent of each other to avoid collision of HARQ process IDs.
The method for calculating the HARQ Process ID (HARQ Process ID) comprises the following steps:
HARQ Process ID＝[floor(CURRENT_symbol/periodicity)]modulo nrofHARQ-Processes+HARQ_offset (2)
the HARQ _ offset proposed by the present application is an integer value used to provide an offset specifying the configuration ID, and nrofHARQ _ Processes is the number of Processes scheduled per configuration (see TS 38.321 standard (vf.6.0) section 5.3.1) for the rest of equation (2). The parameters in equation (2) other than HARQ _ offset are shown in TS 38.321V f.6.0, where CURRENT _ symbol ═ (SFN × number of slot frames × number of symbol slot + slot number in the frame × number of symbol slot + symbol number in the slot), as defined in TS38.211, SFN is the data frame number, and number of slot frame and number of symbol slot in each frame refer to the number of consecutive slots in each frame and the number of consecutive symbols in each slot, respectively. CURRENT _ symbol refers to the symbol coefficient (index) of the first retransmission of the repeated transmission. The periodicity refers to a period of the uplink configuration. And configuring a corresponding HARQ process for each configured uplink scheduling data, wherein the ID of the HARQ process is less than nrofHARQ-Processes.
Through this transformation, the HARQ process ID for each configuration schedule can be selected from the respective HARQ process IDs resource pool, thereby avoiding collision.
In any of the above embodiments, preferably, the redundancy version sequence number used by the network device to identify the uplink data configured to be repeatedly transmitted currently is configured by a higher layer parameter. After the network equipment knows the nth configuration scheduling, the RV serial number used by the terminal for repeatedly sending K times is configured by high-level parameters. The RV associated with the kth transmission opportunity is determined by the [ mod (n-1,4) +1] value in the configured RV sequence, and the first starting position in the repeated transmission and the RV are corresponding.
FIG. 6 is a diagram of a mobile communication system according to the present invention.
The embodiment of the present application provides a terminal device 10, which is used for the method in the embodiment of the present application, and the terminal device includes a control module 11 and a sending module 12. The control module is used for generating the uplink control information; and the sending module is used for sending the uplink control information and the uplink data.
In the control module, the uplink control information includes 2 nd indication information and 1 st indication information. The 2 nd indication information is used for determining HARQ process ID; the 1 st indication information is used for identifying the currently configured uplink scheduling resource.
For example, the 1 st indication information is a configuration identifier, and each configuration identifier corresponds to one configured uplink scheduling resource. Each of the configurations corresponds to a HARQ offset value. .
For another example, the 1 st indication information includes at least one of a new data indication and a redundancy version. The new data indication is used for indicating whether the currently configured uplink data is new data or retransmission data. And the redundancy version is used for indicating the retransmission times of the currently configured uplink data. Specifically, the HARQ process number is used to indicate the HARQ process number of the resource where the configured scheduling is located. New data indicator: and the value of the field is inverted if the scheduled uplink data is new data, that is, the value is different from the value of the uplink control information detected at the same HARQ process number at the last time. Redundancy version: redundancy version information for indicating scheduled data.
Preferably, the corresponding HARQ offset value is determined according to the configuration identifier, and the relationship between the configuration identifier and the HARQ offset value is preset or configured through signaling. Further, the HARQ process ID is calculated by equation (2) according to the HARQ offset value.
Preferably, the uplink control information further includes 2 nd indication information, where the 2 nd indication information represents a HARQ process ID value or a HARQ process ID offset value.
And in the sending module, mapping the uplink control information to a symbol after the first DM RS of the uplink data after carrying out rate matching on the uplink control information and the uplink data. And introducing a code rate compensation factor to reduce the code rate of the uplink control information.
Further, the terminal device includes a configuration module 13, and preferably, the terminal configures a redundancy version sequence number and a code rate compensation factor used by uplink data repeatedly sent at present, and configures the redundancy version sequence number and the code rate compensation factor by using parameters of a high layer signaling.
The embodiment of the present application further provides a network device 20, which is used in the method of the embodiment of the present application, and the network device includes a receiving module 21 and a determining module 22; the receiving module is configured to receive the uplink data and the uplink control information; the determining module is configured to identify the 2 nd indication information and the 1 st indication information, and determine an HARQ process ID and a current configuration.
In the receiving module, demultiplexing and receiving uplink control information in currently configured uplink data; the uplink control information comprises 1 st indication information; preferably, the receiving module is configured to demultiplex and search for uplink control information on a symbol after the first DM RS of the uplink data.
In the determining module, whether a plurality of uplink data use the same uplink scheduling resource configuration is identified according to the 1 st indication information.
For example, the 1 st indication information includes a configuration identifier of uplink data. When the network device receives 1 st uplink data, the receiving module demultiplexes 1 st uplink control information from the 1 st uplink data, the 1 st uplink control information includes 1 st indication information, and the determining module identifies the current configuration of the 1 st uplink data as Config 1 according to the 1 st indication information; when the network device receives the 2 nd uplink data, the receiving module demultiplexes the 2 nd uplink control information from the 2 nd uplink data, the 2 nd uplink control information includes the 1 st indication information, and the determining module identifies that the current configuration of the 2 nd uplink data is still Config 1 according to the 1 st indication information; therefore, the determining module can identify that the 1 st uplink data and the 2 nd uplink data use the same uplink scheduling resource configuration;
if the current configuration of the 2 nd uplink data is Config 2, the determining module can identify that the 1 st uplink data and the 2 nd uplink data use different uplink scheduling resource configurations.
For another example, the 1 st indication information includes a new data indication and a redundancy version. The determining module can determine whether 2 or more uplink data use the same uplink scheduling resource allocation according to the new data indication, at least one piece of information in the redundancy version, and the transmission time of the uplink data. When the network device receives 1 st uplink data, the receiving module demultiplexes 1 st uplink control information from the 1 st uplink data, the 1 st uplink control information comprises 1 st indication information, and the determining module identifies the 1 st uplink data as new data transmission according to new data indication in the 1 st indication information; in the next transmission opportunity, when the network device receives the 2 nd uplink data, the receiving module demultiplexes the 2 nd uplink control information from the 2 nd uplink data, the 2 nd uplink control information includes the 1 st indication information, and the determining module identifies the 2 nd uplink data as the 2 nd transmission according to the redundancy version in the 1 st indication information, so that the determining module can identify that the 1 st uplink data and the 2 nd uplink data use the same uplink scheduling resource configuration;
if the 2 nd uplink data is still identified to be sent as new data according to the new data indication in the 1 st indication information, the 1 st uplink data and the 2 nd uplink data use different uplink scheduling resource configurations;
and if the 2 nd uplink data is identified to be repeatedly transmitted but not transmitted for the 2 nd time according to the redundancy version in the 1 st indication information, using different uplink scheduling resource configurations for the 1 st uplink data and the 2 nd uplink data.
The determining module is further configured to merge the redundant information according to the 1 st indication information or by combining the 1 st indication information and the 2 nd indication information. Specifically, the determining module is configured to combine the retransmission data of the same data according to the 1 st indication information; and combining the uplink data belonging to the same HARQ process ID according to the 2 nd indication information.
Further, the network device includes a configuration module 23, where the configuration module includes a redundancy version sequence number, and the redundancy version sequence number used by the network device to identify the uplink data that is configured and repeatedly sent at present is configured by a higher layer parameter.
The embodiment of the application also provides a mobile communication system, which comprises the terminal equipment of at least one embodiment and the network equipment of at least one embodiment.
When the system is in operation, for example, the network device configures N uplink scheduling resources to the terminal for scheduling-free transmission of uplink data, and the terminal transmits uplink control information while transmitting uplink data on the configured N (N is 1, …, N) scheduling resources, where the content of the uplink control information includes an HARQ process ID number, a new data transmission instruction, and a redundancy version instruction. In order to reduce the overhead of uplink control information, only the identifier of the scheduling resource currently used for configuration may be reported.
The uplink control information is multiplexed in the uplink data of the K retransmissions. The multiplexing mode is a rate matching method, and a bit sequence subjected to rate matching of the uplink control information is mapped on a data symbol after the first DM RS of the uplink data according to a frequency domain priority mode. And a code rate compensation factor is introduced, so that the code rate of the uplink control information is reduced, and the transmission reliability of the uplink control information is improved. And configuring the code rate compensation factor by a high layer.
The network equipment receives the uplink data, demultiplexes the uplink control information, and identifies whether the plurality of uplink data use the same configuration. When the uplink data retransmitted for the K times is received and at least one uplink data is lost, whether the same configuration is used by the remaining uplink data and/or which configuration is used by the remaining uplink data can be determined according to the second indication information in the received remaining uplink data.
The parameters configured by the higher layer, such as the code rate compensation factor, the sequence number of the redundancy version, and the configured uplink scheduling resource, may be obtained by the network device through the device interface, and may be sent to the terminal device through the network device, or may be sent to the terminal device through other manners.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (17)
1. A method for transmitting multi-configuration data of uplink scheduling resources, when the uplink scheduling resources comprise a plurality of configurations, the transmission periods and frequency resources of the uplink scheduling resources of the plurality of configurations are the same, and the starting time is different,
the multiplexing of the uplink control information in the currently configured uplink data includes: mapping uplink control information and uplink data on a symbol behind a first DM RS of the uplink data after rate matching;
the uplink control information comprises 1 st indication information; the 1 st indication information is used to identify the currently configured uplink scheduling resource, and the terminal device notifies the network device whether the uplink data is new data or retransmission data.
2. The method of claim 1,
the 1 st indication information is a configuration identifier, and each configuration identifier corresponds to one configuration.
3. The method of claim 1,
the 1 st indication information comprises at least one of a new data indication and a redundancy version;
the new data indication is used for indicating whether the currently configured uplink data is new data or retransmission data;
and the redundancy version is used for indicating the retransmission times of the currently configured uplink data.
4. The method of claim 2,
and determining a corresponding HARQ offset value according to the configuration identifier, wherein the relationship between the configuration identifier and the HARQ offset value is preset or configured through signaling.
5. The method according to any one of claims 1 to 3, wherein the uplink control information further includes 2 nd indication information, and the 2 nd indication information represents a HARQ process ID value or a HARQ offset value.
6. The method according to any of claims 1-4, wherein the redundancy version sequence number used by the terminal in configuring the uplink data repeatedly transmitted at present is configured by a higher layer parameter.
7. The method of any one of claims 1 to 4, wherein a code rate compensation factor is introduced to reduce the code rate of the uplink control information.
8. A method for transmitting multi-configuration data of uplink scheduling resources, when the uplink scheduling resources include a plurality of configurations, the transmission periods and frequency resources of the uplink scheduling resources of the plurality of configurations are the same, and the starting time is different,
demultiplexing and receiving uplink control information in currently configured uplink data, wherein the demultiplexing mode is to search the uplink control information on a symbol behind a first DM RS of the uplink data;
the uplink control information comprises 1 st indication information; the 1 st indication information is used to identify the currently configured uplink scheduling resource, and the terminal device notifies the network device whether the uplink data is new data or retransmission data.
9. The method of claim 8,
the 1 st indication information is configuration identification, and each configuration identification corresponds to one configuration.
10. The method of claim 8,
the 1 st indication information comprises at least one of a new data indication and a redundancy version;
the new data indication is used for indicating whether the currently configured uplink data is new data or retransmission data;
and the redundancy version is used for indicating the retransmission times of the currently configured uplink data.
11. The method of claim 9,
and determining a corresponding HARQ offset value according to the configuration identifier, wherein the relationship between the configuration identifier and the HARQ offset value is preset or configured through signaling.
12. The method according to any one of claims 8 to 10, wherein the uplink control information further includes 2 nd indication information, and the 2 nd indication information represents a HARQ process ID value or a HARQ offset value.
13. The method according to any of claims 8 to 10, wherein the redundancy version sequence number used by the network device to identify the currently configured repeatedly transmitted uplink data is configured by a higher layer parameter.
14. The method according to any one of claims 8 to 10,
and receiving a plurality of uplink data, and merging redundant information according to the 1 st indication information and/or the 2 nd indication information.
15. A terminal device for use in the method of any one of claims 1 to 7, comprising a control module and a sending module;
a control module, configured to generate the uplink control information;
and the sending module is used for sending the uplink control information and the uplink data.
16. A network device for use in the method of any one of claims 8 to 14, comprising a receiving module, a determining module;
the receiving module is configured to receive the uplink data and the uplink control information;
and the determining module is used for identifying the 1 st indication information and determining the HARQ process ID and the currently configured uplink scheduling resource.
17. A mobile communication system comprising at least 1 terminal device according to claim 15 and at least 1 network device according to claim 16.
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| CN201910755167.1A CN112399616B (en) | 2019-08-15 | 2019-08-15 | Uplink scheduling resource multi-configuration data transmission method, equipment and system |
| PCT/CN2020/073699 WO2021027266A1 (en) | 2019-08-15 | 2020-01-22 | Uplink scheduling resource multi-configuration data transmission method, devices, and system |
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| CN109803393A (en) * | 2017-11-17 | 2019-05-24 | 中兴通讯股份有限公司 | Method for sending information and device |
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