CN109787708B - Method and device for indicating or receiving redundancy version - Google Patents
Method and device for indicating or receiving redundancy version Download PDFInfo
- Publication number
- CN109787708B CN109787708B CN201711112166.2A CN201711112166A CN109787708B CN 109787708 B CN109787708 B CN 109787708B CN 201711112166 A CN201711112166 A CN 201711112166A CN 109787708 B CN109787708 B CN 109787708B
- Authority
- CN
- China
- Prior art keywords
- redundancy version
- control information
- physical layer
- layer control
- redundancy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method and a device for indicating a redundancy version and a method and a device for receiving the redundancy version, wherein the method for indicating the redundancy version for a base station comprises the following steps: indicating a number of a plurality of redundancy versions using one or more bit groups in the downlink physical layer control information; and sending the numbers of the plurality of redundancy versions to the terminal. The terminal sends uplink data or demodulates downlink data according to the number of the redundancy version, and then the reliability of data transmission is ensured.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for indicating a redundancy version, and a method and an apparatus for receiving a redundancy version.
Background
The more diverse services in current communication networks are, not just simple voice calls, web browsing, video, etc. The common features of the emerging services, such as car networking, telemedicine, industrial automation, etc., are high real-time requirements and may cause serious impact in case of errors, so that such services need to guarantee low latency and high reliability.
In the current discussion of 5G standardization, URLLC (Ultra-Reliable and Low Latency Communication) uses real-time scheduling on air interface scheduling. As an example of the following behavior, once there is URLLC data to be sent to the terminal, the base station may start scheduling on any OFDM (Orthogonal Frequency Division Multiplexing) symbol of a slot (slot), instead of starting scheduling from the start boundary of the slot as in the case of normal data, and in the case of resource limitation, the base station may even puncture the normal data being transmitted to make up resources for URLLC data transmission, so as to deal with the problem of reducing latency.
In addition, in order to improve the reliability of data transmission, multiple copies of the same effective information are transmitted in multiple different frequency resources, so that compared with a scheme that only one copy of information is transmitted in a group of frequency domain resources in one time of resource scheduling, the demodulation success rate of a receiving end can be improved, and meanwhile, the time delay of HARQ/ACK (hybrid automatic repeat request/acknowledgement information) feedback retransmission is avoided. Wherein the multiple copies of the information are actually multiple redundancy versions corresponding to the same valid information generated by the data processing flow. In the scheme of multiple Information copy repeat transmission, the base station indicates the redundancy versions of the data transmission when scheduling uplink/Downlink data transmission by using Downlink Control Information (DCI), but the terminal cannot clearly distinguish the redundancy versions after receiving the multiple redundancy versions.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, an aspect of the present invention is to propose a method of indicating redundancy versions.
Another aspect of the present invention is to provide an apparatus for indicating redundancy versions.
Yet another aspect of the present invention is to provide a method of receiving a redundancy version.
Yet another aspect of the present invention is to provide an apparatus for receiving a redundancy version.
In view of the above, according to an aspect of the present invention, a method for indicating redundancy version is provided, where the method for indicating redundancy version is used in a base station, and includes: indicating a number of a plurality of redundancy versions using one or more bit groups in the downlink physical layer control information; and sending the numbers of the plurality of redundancy versions to the terminal.
In the method for indicating the redundancy version, the base station needs to indicate the redundancy version of the data transmission when the base station uses the downlink physical layer control information to schedule the data transmission. When multiple redundancy versions of the same effective information are transmitted in multiple different frequency resources, further, in order to enable the terminal to correctly receive the multiple redundancy versions, the base station needs to use one or more bit groups to indicate numbers of the multiple redundancy versions in the downlink physical layer control information, and send the numbers of the multiple redundancy versions to the terminal, so that the terminal can perform uplink data transmission or downlink data demodulation according to the numbers of the redundancy versions, thereby ensuring reliability of data transmission.
The method for indicating redundancy versions according to the present invention may further have the following technical features:
in the above technical solution, preferably, if the downlink physical layer control information is used for downlink scheduling, a redundancy version number of downlink data is indicated in the downlink physical layer control information; and if the downlink physical layer control information is used for uplink scheduling, indicating the redundancy version number of the uplink data in the downlink physical layer control information.
In the technical scheme, the base station can indicate the redundancy version number of the downlink data in the downlink physical layer control information during downlink scheduling and send the redundancy version number to the terminal, so that the terminal can demodulate the downlink data according to the redundancy version number, and the correctness of the downlink data demodulated by the terminal is ensured. When the uplink scheduling is carried out, the base station can indicate the number of the redundancy version of the uplink data in the downlink physical layer control information and send the number of the redundancy version to the terminal, so that the terminal can be ensured to correctly send the uplink data according to the number of the redundancy version.
In any of the above technical solutions, preferably, using one or more bit groups to indicate numbers of multiple redundancy versions in the downlink physical layer control information specifically includes: in the downlink physical layer control information, a bit group is used for indicating the number of the redundancy version with the lowest or the highest starting frequency of occupied frequency resources; the numbers of the other redundancy versions are increased in sequence from low to high or from high to low according to the initial frequency of the occupied frequency domain resources.
In the technical scheme, a group of bit groups containing M bits is used for representing the number of the redundancy version with the lowest or the highest initial frequency of the occupied frequency domain resources, and the numbers of other redundancy versions are circularly and gradually increased from low to high or from high to low according to the initial frequency of the frequency domain resources occupied by the redundancy versions. The meaning of cyclic increment is that when the redundancy version number is increased more than the maximum redundancy version number, the number is increased from the redundancy version number 0.
In any of the above technical solutions, preferably, using one or more bit groups to indicate numbers of multiple redundancy versions in the downlink physical layer control information specifically includes: in the downlink physical layer control information, a number indicating each redundancy version is used corresponding to each bit group of a plurality of bit groups.
In this solution, a plurality of bit groups may be used, each bit group comprising M bits, respectively indicating the number of the respective redundancy version. There is a uniquely determined correspondence between the bit groups and the redundancy versions, for example, the most significant bit group represents the number of the redundancy version with the lowest start frequency of the occupied frequency domain resources, and so on, the least significant bit group represents the number of the redundancy version with the highest start frequency of the occupied frequency domain resources.
According to another aspect of the present invention, an apparatus for indicating redundancy version is provided, which is used for a base station, and includes: an indication module, configured to indicate numbers of multiple redundancy versions using one or more bit groups in downlink physical layer control information; and the sending module is used for sending the numbers of the plurality of redundancy versions to the terminal.
According to the device for indicating the redundancy version, the base station needs to indicate the redundancy version of the data transmission when scheduling the data transmission by using the downlink physical layer control information. When multiple redundancy versions of the same effective information are transmitted in multiple different frequency resources, further, in order to enable the terminal to correctly receive the multiple redundancy versions, the base station needs to use one or more bit groups to indicate numbers of the multiple redundancy versions in the downlink physical layer control information, and send the numbers of the multiple redundancy versions to the terminal, so that the terminal can perform uplink data transmission or downlink data demodulation according to the numbers of the redundancy versions, thereby ensuring reliability of data transmission.
The apparatus for indicating redundancy version according to the present invention may further have the following technical features:
in the foregoing technical solution, preferably, the indicating module is specifically configured to indicate a redundancy version number of the downlink data in the downlink physical layer control information if the downlink physical layer control information is used for downlink scheduling; or if the downlink physical layer control information is used for uplink scheduling, indicating the redundancy version number of the uplink data in the downlink physical layer control information.
In the technical scheme, the base station can indicate the redundancy version number of the downlink data in the downlink physical layer control information during downlink scheduling and send the redundancy version number to the terminal, so that the terminal can demodulate the downlink data according to the redundancy version number, and the correctness of the downlink data demodulated by the terminal is ensured. When the uplink scheduling is carried out, the base station can indicate the number of the redundancy version of the uplink data in the downlink physical layer control information and send the number of the redundancy version to the terminal, so that the terminal can be ensured to correctly send the uplink data according to the number of the redundancy version.
In any of the above technical solutions, preferably, the indicating module is specifically configured to use a bit group to indicate a number of a redundancy version with a lowest or highest starting frequency of occupied frequency resources in the downlink physical layer control information; the numbers of the other redundancy versions are increased in sequence from low to high or from high to low according to the initial frequency of the occupied frequency domain resources.
In the technical scheme, a group of bit groups containing M bits is used for representing the number of the redundancy version with the lowest or the highest initial frequency of the occupied frequency domain resources, and the numbers of other redundancy versions are circularly and gradually increased from low to high or from high to low according to the initial frequency of the frequency domain resources occupied by the redundancy versions. The meaning of cyclic increment is that when the redundancy version number is increased more than the maximum redundancy version number, the number is increased from the redundancy version number 0.
In any of the foregoing technical solutions, preferably, the indicating module is specifically configured to use, in the downlink physical layer control information, a number that indicates each redundancy version correspondingly for each bit group in a plurality of bit groups.
In this solution, a plurality of bit groups may be used, each bit group comprising M bits, respectively indicating the number of the respective redundancy version. There is a uniquely determined correspondence between the bit groups and the redundancy versions, for example, the most significant bit group represents the number of the redundancy version with the lowest start frequency of the occupied frequency domain resources, and so on, the least significant bit group represents the number of the redundancy version with the highest start frequency of the occupied frequency domain resources.
According to still another aspect of the present invention, a method for receiving redundancy versions is provided, where the method for receiving redundancy versions includes: receiving downlink physical layer control information from a base station; and acquiring a plurality of numbers of redundancy versions in the downlink physical layer control information.
According to the method for receiving the redundancy versions, the base station indicates the numbers of the plurality of redundancy versions in the downlink physical layer control information before the downlink physical layer control information, so that the terminal can obtain the numbers of the plurality of redundancy versions after receiving the downlink physical layer control information, and can definitely distinguish the redundancy versions according to the numbers of the redundancy versions after the terminal correctly receives the plurality of redundancy versions, so that the method is used for sending uplink data or demodulating downlink data, and the reliability of data transmission is improved.
The method for receiving redundancy versions according to the present invention may further have the following technical features:
in the above technical solution, preferably, the method further includes: and if the downlink physical layer control information is used for downlink scheduling, acquiring the redundancy version number of the downlink data in the downlink physical layer control information, and demodulating the downlink data according to the redundancy version number of the downlink data.
In the technical scheme, the number of the redundancy version occupied by the downlink data is obtained through the downlink physical layer control information, and then the downlink data is demodulated to obtain the effective information in the redundancy version, so that the correctness of the terminal demodulating the downlink data is ensured.
In any of the above technical solutions, preferably, the method further includes: and if the downlink physical layer control information is used for uplink scheduling, acquiring the redundancy version number of the uplink data in the downlink physical layer control information, and sending the uplink data of the redundancy version to the base station.
In the technical scheme, the redundancy version number of the uplink data is obtained through the downlink physical layer control information, and the fact that a sending module of the terminal can correctly send the uplink data according to the redundancy version number is guaranteed.
According to still another aspect of the present invention, there is provided an apparatus for receiving a redundancy version for a terminal, the apparatus comprising: a receiving module, configured to receive downlink physical layer control information from a base station; and the number acquisition unit is used for acquiring a plurality of redundant version numbers in the downlink physical layer control information.
According to the device for receiving the redundancy versions, the base station indicates the numbers of the plurality of redundancy versions in the downlink physical layer control information before the downlink physical layer control information, so that the terminal can acquire the numbers of the plurality of redundancy versions after receiving the downlink physical layer control information, and can definitely distinguish the redundancy versions according to the numbers of the redundancy versions after the terminal correctly receives the plurality of redundancy versions, so that the device is used for sending uplink data or demodulating downlink data, and the reliability of data transmission is improved.
The apparatus for receiving redundancy versions according to the present invention may further have the following technical features:
in the above technical solution, preferably, the method further includes: and the demodulation module is used for acquiring the redundancy version number of the downlink data from the downlink physical layer control information and demodulating the downlink data according to the redundancy version number of the downlink data if the downlink physical layer control information is used for downlink scheduling.
In the technical scheme, the number of the redundancy version occupied by the downlink data is obtained through the downlink physical layer control information, and then the downlink data is demodulated to obtain the effective information in the redundancy version, so that the correctness of the terminal demodulating the downlink data is ensured.
In any of the above technical solutions, preferably, the method further includes: and the sending module is used for acquiring the redundancy version number of the uplink data in the downlink physical layer control information and sending the uplink data of the redundancy version to the base station if the downlink physical layer control information is used for uplink scheduling.
In the technical scheme, the redundancy version number of the uplink data is obtained through the downlink physical layer control information, and the fact that a sending module of the terminal can correctly send the uplink data according to the redundancy version number is guaranteed.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 illustrates a flow diagram of a method of indicating redundancy versions of an embodiment of the present invention;
FIG. 2 illustrates a flow diagram of a method of indicating redundancy versions of another embodiment of the present invention;
FIG. 3 illustrates a flow diagram of a method of indicating redundancy versions of yet another embodiment of the present invention;
FIG. 4 shows a schematic block diagram of an apparatus for indicating redundancy versions of an embodiment of the present invention;
FIG. 5 illustrates a flow diagram of a method of receiving redundancy versions, in accordance with one embodiment of the present invention;
FIG. 6 shows a flow diagram of a method of receiving redundancy versions of another embodiment of the present invention;
FIG. 7 illustrates a flow diagram of a method of receiving redundancy versions of yet another embodiment of the present invention;
FIG. 8 shows a schematic block diagram of an apparatus for receiving redundancy versions of an embodiment of the present invention;
fig. 9 shows a schematic block diagram of an apparatus for receiving redundancy versions of another embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
An embodiment of the first aspect of the present invention provides a method for indicating a redundancy version, which is used for a base station, and fig. 1 illustrates a flowchart of the method for indicating a redundancy version according to an embodiment of the present invention. Wherein, the method comprises the following steps:
102, indicating numbers of a plurality of redundancy versions by using one or a plurality of bit groups in the downlink physical layer control information;
and 104, sending the numbers of the plurality of redundancy versions to the terminal.
In the method for indicating the redundancy version, the base station needs to indicate the redundancy version of the data transmission when the base station uses the downlink physical layer control information to schedule the data transmission. When multiple redundancy versions of the same effective information are transmitted in multiple different frequency resources, further, in order to enable the terminal to correctly receive the multiple redundancy versions, the base station needs to use one or more bit groups to indicate numbers of the multiple redundancy versions in the downlink physical layer control information, and send the numbers of the multiple redundancy versions to the terminal, so that the terminal can perform uplink data transmission or downlink data demodulation according to the numbers of the redundancy versions, thereby ensuring reliability of data transmission.
Fig. 2 shows a flow diagram of a method of indicating redundancy versions of another embodiment of the present invention. Wherein, the method comprises the following steps:
and step 204, sending the numbers of the plurality of redundancy versions to the terminal.
In this embodiment, in downlink scheduling, the base station may indicate a redundancy version number of the downlink data in the downlink physical layer control information, and send the redundancy version number to the terminal, so that the terminal can demodulate the downlink data according to the redundancy version number, thereby ensuring the correctness of the terminal demodulating the downlink data. When the uplink scheduling is carried out, the base station can indicate the number of the redundancy version of the uplink data in the downlink physical layer control information and send the number of the redundancy version to the terminal, so that the terminal can be ensured to correctly send the uplink data according to the number of the redundancy version.
Fig. 3 shows a flow diagram of a method of indicating redundancy versions of yet another embodiment of the present invention. Wherein, the method comprises the following steps:
In this embodiment, a group of bits including M bits is used to represent the number of the redundancy version that has the lowest or the highest starting frequency of the occupied frequency domain resources, and the numbers of the other redundancy versions are cyclically increased from low to high or from high to low according to the starting frequency of the frequency domain resources occupied by the redundancy version. The meaning of cyclic increment is that when the redundancy version number is increased more than the maximum redundancy version number, the number is increased from the redundancy version number 0.
For example, assume that there are 4 redundancy versions, the number is 0, 1, 2, 3, and the number of redundancy versions transmitted repeatedly is 3. Employing a in DCI1a0One group of bits represents the number of the redundancy version with the lowest initial frequency of the occupied frequency domain resources, and the numbers of other redundancy versions are circularly and gradually increased from low to high according to the sequence of the initial frequency of the frequency domain resources occupied by the redundancy versions. For example if a1a0When the frequency domain resource is equal to 00, the numbers of other redundancy versions are 01 and 10 respectively according to the sequence from low to high of the initial frequency of the frequency domain resource occupied by the redundancy version; if a1a0The numbers of the other redundancy versions are 11 and 00 respectively according to the sequence of the starting frequency of the frequency domain resource occupied by the information copy from low to high as 10.
It is also possible to use a plurality of bit groups, each bit group comprising M bits, respectively indicating the number of the respective redundancy version. There is a uniquely determined correspondence between the bit groups and the redundancy versions, for example, the most significant bit group represents the number of the redundancy version with the lowest start frequency of the occupied frequency domain resources, and so on, the least significant bit group represents the number of the redundancy version with the highest start frequency of the occupied frequency domain resources.
For example, assume that there are 4 redundancy versions, the number is 0, 1, 2, 3, and the number of redundancy versions transmitted repeatedly is 3. Employing a in DCI5a4a3a2a1a0A total of 3 groups of bits, each group of 2 bits representing the number of 3 redundancy versions transmitted repeatedly. Wherein a is5a4Number representing the redundancy version with the lowest starting frequency of occupied frequency domain resources, a3a2Number of redundancy version representing the second lowest initial frequency of occupied frequency domain resources, a1a0The number of the redundancy version with the highest starting frequency of the occupied frequency domain resources.
In the second aspect of the present invention, an apparatus for indicating redundancy version is provided for a base station, and fig. 4 is a schematic block diagram of an apparatus 400 for indicating redundancy version according to an embodiment of the present invention. Wherein the apparatus 400 comprises:
an indicating module 402, configured to indicate numbers of multiple redundancy versions using one or more bit groups in downlink physical layer control information; a sending module 404, configured to send a number of multiple redundancy versions to the terminal.
In the apparatus 400 for indicating redundancy version according to the present invention, the base station needs to indicate the redundancy version of the data transmission when scheduling data transmission using the downlink physical layer control information. When multiple redundancy versions of the same effective information are transmitted in multiple different frequency resources, further, in order to enable the terminal to correctly receive the multiple redundancy versions, the base station needs to use one or more bit groups to indicate numbers of the multiple redundancy versions in the downlink physical layer control information, and send the numbers of the multiple redundancy versions to the terminal, so that the terminal can perform uplink data transmission or downlink data demodulation according to the numbers of the redundancy versions, thereby ensuring reliability of data transmission.
In an embodiment of the present invention, preferably, the indicating module 402 is specifically configured to indicate a redundancy version number of downlink data in the downlink physical layer control information if the downlink physical layer control information is used for downlink scheduling; or if the downlink physical layer control information is used for uplink scheduling, indicating the redundancy version number of the uplink data in the downlink physical layer control information.
In this embodiment, in downlink scheduling, the base station may indicate a redundancy version number of the downlink data in the downlink physical layer control information, and send the redundancy version number to the terminal, so that the terminal can demodulate the downlink data according to the redundancy version number, thereby ensuring the correctness of the terminal demodulating the downlink data. When the uplink scheduling is carried out, the base station can indicate the number of the redundancy version of the uplink data in the downlink physical layer control information and send the number of the redundancy version to the terminal, so that the terminal can be ensured to correctly send the uplink data according to the number of the redundancy version.
In an embodiment of the present invention, preferably, the indicating module 402 is specifically configured to use a bit group to indicate a number of a redundancy version with a lowest or highest starting frequency of occupied frequency resources in the downlink physical layer control information; the numbers of the other redundancy versions are increased in sequence from low to high or from high to low according to the initial frequency of the occupied frequency domain resources.
In this embodiment, a group of bits including M bits is used to represent the number of the redundancy version that has the lowest or the highest starting frequency of the occupied frequency domain resources, and the numbers of the other redundancy versions are cyclically increased from low to high or from high to low according to the starting frequency of the frequency domain resources occupied by the redundancy version. The meaning of cyclic increment is that when the redundancy version number is increased more than the maximum redundancy version number, the number is increased from the redundancy version number 0.
For example, assume that there are 4 redundancy versions, the number is 0, 1, 2, 3, and the number of redundancy versions transmitted repeatedly is 3. Employing a in DCI1a0One group of bits represents the number of the redundancy version with the lowest initial frequency of the occupied frequency domain resources, and the numbers of other redundancy versions are circularly and gradually increased from low to high according to the sequence of the initial frequency of the frequency domain resources occupied by the redundancy versions. For example if a1a0When the frequency domain resource is equal to 00, the numbers of other redundancy versions are 01 and 10 respectively according to the sequence from low to high of the initial frequency of the frequency domain resource occupied by the redundancy version; if a1a0The numbers of the other redundancy versions are 11 and 00 respectively according to the sequence of the starting frequency of the frequency domain resource occupied by the information copy from low to high as 10.
In an embodiment of the present invention, preferably, the indicating module 402 is specifically configured to use, in the downlink physical layer control information, a number corresponding to each redundancy version indicated by each bit group in the plurality of bit groups.
In this embodiment, a plurality of bit groups may be used, each bit group containing M bits, each indicating a number of a respective redundancy version. There is a uniquely determined correspondence between the bit groups and the redundancy versions, for example, the most significant bit group represents the number of the redundancy version with the lowest start frequency of the occupied frequency domain resources, and so on, the least significant bit group represents the number of the redundancy version with the highest start frequency of the occupied frequency domain resources.
For example, assume that there are 4 redundancy versions, the number is 0, 1, 2, 3, and the number of redundancy versions transmitted repeatedly is 3. Employing a in DCI5a4a3a2a1a0A total of 3 groups of bits, each group of 2 bits representing the number of 3 redundancy versions transmitted repeatedly. Wherein a is5a4Number representing the redundancy version with the lowest starting frequency of occupied frequency domain resources, a3a2Number of redundancy version representing the second lowest initial frequency of occupied frequency domain resources, a1a0The number of the redundancy version with the highest starting frequency of the occupied frequency domain resources.
In an embodiment of the third aspect of the present invention, a method for receiving a redundancy version is provided, which is used for a terminal, and fig. 5 illustrates a flowchart of the method for receiving a redundancy version according to an embodiment of the present invention. Wherein, the method comprises the following steps:
According to the method for receiving the redundancy versions, the base station indicates the numbers of the plurality of redundancy versions in the downlink physical layer control information before the downlink physical layer control information, so that the terminal can obtain the numbers of the plurality of redundancy versions after receiving the downlink physical layer control information, and can definitely distinguish the redundancy versions according to the numbers of the redundancy versions after the terminal correctly receives the plurality of redundancy versions, so that the method is used for sending uplink data or demodulating downlink data, and the reliability of data transmission is improved.
Fig. 6 shows a flow diagram of a method of receiving redundancy versions according to another embodiment of the present invention. Wherein, the method comprises the following steps:
In the embodiment, the number of the redundancy version occupied by the downlink data is obtained through the downlink physical layer control information, and then the downlink data is demodulated to obtain the effective information in the redundancy version, so that the correctness of the terminal demodulating the downlink data is ensured.
Fig. 7 shows a flowchart of a method of receiving redundancy versions according to yet another embodiment of the present invention. Wherein, the method comprises the following steps:
In this embodiment, the redundancy version number of the uplink data is obtained through the downlink physical layer control information, and it is ensured that the sending module of the terminal can correctly send the uplink data according to the redundancy version number.
In an embodiment of the fourth aspect of the present invention, an apparatus for receiving redundancy versions is provided, which is used for a terminal, and fig. 8 shows a schematic block diagram of an apparatus 800 for receiving redundancy versions according to an embodiment of the present invention. Wherein the apparatus 800 comprises:
a receiving module 802, configured to receive downlink physical layer control information from a base station;
a number obtaining unit 804, configured to obtain a plurality of redundancy versions of numbers in the downlink physical layer control information.
According to the device 800 for receiving redundancy versions provided by the invention, since the base station indicates the numbers of a plurality of redundancy versions in the downlink physical layer control information before the downlink physical layer control information, the terminal can acquire the numbers of the plurality of redundancy versions after receiving the downlink physical layer control information, and can definitely distinguish the redundancy versions according to the numbers of the redundancy versions after ensuring that the terminal correctly receives the plurality of redundancy versions, so that the device 800 is used for sending uplink data or demodulating downlink data, and the reliability of data transmission is improved.
Fig. 9 shows a schematic block diagram of an apparatus 900 for receiving redundancy versions of another embodiment of the present invention. Wherein the apparatus 900 comprises:
a receiving module 902, configured to receive downlink physical layer control information from a base station;
a number obtaining unit 904, configured to obtain a plurality of redundant version numbers in the downlink physical layer control information;
a demodulation module 906, configured to obtain a redundancy version number of the downlink data in the downlink physical layer control information if the downlink physical layer control information is used for downlink scheduling, and demodulate the downlink data according to the redundancy version number of the downlink data;
a sending module 908, configured to obtain a redundancy version number of the uplink data in the downlink physical layer control information and send the uplink data of the redundancy version to the base station if the downlink physical layer control information is used for uplink scheduling.
In the embodiment, the number of the redundancy version occupied by the downlink data is obtained through the downlink physical layer control information, and then the downlink data is demodulated to obtain the effective information in the redundancy version, so that the correctness of the terminal demodulating the downlink data is ensured.
The redundancy version number of the uplink data is obtained through the downlink physical layer control information, and it is ensured that the sending module 908 of the terminal can correctly send the uplink data according to the redundancy version number.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for indicating redundancy version, used in a base station, wherein the method for indicating redundancy version comprises:
using a bit group to indicate numbers of a plurality of redundancy versions in the downlink physical layer control information;
sending a plurality of numbers of the redundancy versions to a terminal;
the indicating, by using one bit group in the downlink physical layer control information, a plurality of numbers of the redundancy versions includes:
in the downlink physical layer control information, one bit group is used for indicating the number of the redundancy version with the lowest or the highest initial frequency of the occupied frequency resources;
the numbers of the other redundancy versions are sequentially increased from low to high or from high to low according to the initial frequency of the occupied frequency domain resource;
wherein the sequential increment is sequential circular increment, and the circular increment means that the sequential increment is increased from the redundancy version number 0 after the redundancy version number is increased more than the maximum value of the redundancy version number.
2. The method of indicating redundancy versions of claim 1,
if the downlink physical layer control information is used for downlink scheduling, indicating the redundancy version number of the downlink data in the downlink physical layer control information;
and if the downlink physical layer control information is used for uplink scheduling, indicating the redundancy version number of uplink data in the downlink physical layer control information.
3. An apparatus for indicating redundancy version, used in a base station, wherein the apparatus for indicating redundancy version comprises:
an indication module, configured to indicate numbers of multiple redundancy versions using one bit group in downlink physical layer control information;
the sending module is used for sending the numbers of the redundancy versions to a terminal;
the indicating module is specifically configured to indicate, in the downlink physical layer control information, a number of a redundancy version with a lowest or highest starting frequency of occupied frequency resources by using a bit group; the numbers of the other redundancy versions are sequentially increased from low to high or from high to low according to the initial frequency of the occupied frequency domain resource;
wherein the sequential increment is sequential circular increment, and the circular increment means that the sequential increment is increased from the redundancy version number 0 after the redundancy version number is increased more than the maximum value of the redundancy version number.
4. The apparatus for indicating redundancy version of claim 3,
the indicating module is specifically configured to indicate the redundancy version number of the downlink data in the downlink physical layer control information if the downlink physical layer control information is used for downlink scheduling; or
And if the downlink physical layer control information is used for uplink scheduling, indicating the redundancy version number of uplink data in the downlink physical layer control information.
5. A method for receiving redundancy versions for a terminal, the method comprising:
receiving downlink physical layer control information from a base station;
acquiring a plurality of redundant version numbers in the downlink physical layer control information;
in the downlink physical layer control information, the base station uses a bit group to indicate the number of the redundancy version with the lowest or the highest initial frequency of occupied frequency resources;
the numbers of the other redundancy versions are sequentially increased from low to high or from high to low according to the initial frequency of the occupied frequency domain resource;
the sequential incrementing is sequential circular incrementing, which means that the redundancy version number will be incremented from the redundancy version number 0 after the redundancy version number is incremented beyond the maximum value of the redundancy version number.
6. The method of receiving redundancy versions of claim 5, further comprising:
and if the downlink physical layer control information is used for downlink scheduling, acquiring the redundancy version number of the downlink data in the downlink physical layer control information, and demodulating the downlink data according to the redundancy version number of the downlink data.
7. The method of receiving redundancy versions of claim 5, further comprising:
and if the downlink physical layer control information is used for uplink scheduling, acquiring the redundancy version number of uplink data in the downlink physical layer control information, and sending the uplink data of the redundancy version to the base station.
8. An apparatus for receiving redundancy versions, used in a terminal, the apparatus comprising:
a receiving module, configured to receive downlink physical layer control information from a base station;
a number obtaining unit, configured to obtain a plurality of redundant version numbers in the downlink physical layer control information;
in the downlink physical layer control information, the base station uses a bit group to indicate the number of the redundancy version with the lowest or the highest initial frequency of occupied frequency resources;
the numbers of the other redundancy versions are sequentially increased from low to high or from high to low according to the initial frequency of the occupied frequency domain resource;
the sequential incrementing is sequential circular incrementing, which means that the redundancy version number will be incremented from the redundancy version number 0 after the redundancy version number is incremented beyond the maximum value of the redundancy version number.
9. The apparatus for receiving redundancy versions of claim 8, further comprising:
a demodulation module, configured to, if the downlink physical layer control information is used for downlink scheduling, obtain the redundancy version number of the downlink data in the downlink physical layer control information, and demodulate the downlink data according to the redundancy version number of the downlink data.
10. The apparatus for receiving redundancy versions of claim 8, further comprising:
and a sending module, configured to obtain the redundancy version number of the uplink data in the downlink physical layer control information and send the uplink data of the redundancy version to the base station if the downlink physical layer control information is used for uplink scheduling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711112166.2A CN109787708B (en) | 2017-11-13 | 2017-11-13 | Method and device for indicating or receiving redundancy version |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711112166.2A CN109787708B (en) | 2017-11-13 | 2017-11-13 | Method and device for indicating or receiving redundancy version |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109787708A CN109787708A (en) | 2019-05-21 |
| CN109787708B true CN109787708B (en) | 2022-03-01 |
Family
ID=66485581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711112166.2A Active CN109787708B (en) | 2017-11-13 | 2017-11-13 | Method and device for indicating or receiving redundancy version |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109787708B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016171356A (en) * | 2013-07-23 | 2016-09-23 | シャープ株式会社 | Base station device, terminal device and transmission method |
| CN106961317A (en) * | 2016-01-11 | 2017-07-18 | 中兴通讯股份有限公司 | A kind of data transmission method for uplink and device |
| WO2017121417A1 (en) * | 2016-01-11 | 2017-07-20 | 中兴通讯股份有限公司 | Method, device and system for determining coding modulation parameter |
| CN107005363A (en) * | 2015-01-30 | 2017-08-01 | 联发科技（新加坡）私人有限公司 | Method and device for design iterations |
| CN107197528A (en) * | 2016-03-14 | 2017-09-22 | 华为技术有限公司 | A kind of scheduling of resource and the method and apparatus of distribution |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8144712B2 (en) * | 2008-08-07 | 2012-03-27 | Motorola Mobility, Inc. | Scheduling grant information signaling in wireless communication system |
| WO2014171754A1 (en) * | 2013-04-19 | 2014-10-23 | 주식회사 케이티 | Method and apparatus for transmitting and receiving downlink control information |
| US10367621B2 (en) * | 2014-10-27 | 2019-07-30 | Qualcomm Incorporated | Fountain HARQ for reliable low latency communication |
-
2017
- 2017-11-13 CN CN201711112166.2A patent/CN109787708B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016171356A (en) * | 2013-07-23 | 2016-09-23 | シャープ株式会社 | Base station device, terminal device and transmission method |
| CN107005363A (en) * | 2015-01-30 | 2017-08-01 | 联发科技（新加坡）私人有限公司 | Method and device for design iterations |
| CN106961317A (en) * | 2016-01-11 | 2017-07-18 | 中兴通讯股份有限公司 | A kind of data transmission method for uplink and device |
| WO2017121417A1 (en) * | 2016-01-11 | 2017-07-20 | 中兴通讯股份有限公司 | Method, device and system for determining coding modulation parameter |
| CN107197528A (en) * | 2016-03-14 | 2017-09-22 | 华为技术有限公司 | A kind of scheduling of resource and the method and apparatus of distribution |
Non-Patent Citations (2)
| Title |
|---|
| "R1-1714294 Discussion on CQI and MCS".《3GPP tsg_ran\WG1_RL1》.2017, * |
| "R1-1714433 On transport block size determination".《3GPP tsg_ran\WG1_RL1》.2017, * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109787708A (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11212036B2 (en) | Data communication method, device, and system | |
| JP4972694B2 (en) | Method for acquiring PHICH transmission resource area information and PDCCH receiving method using the same | |
| US8432855B2 (en) | Method for transmitting data using HARQ | |
| CN105940630B (en) | Enhance method, user equipment and the memory of HARQ mechanism | |
| KR101374680B1 (en) | Apparatus and method for arq feedback message generating in wireless communication system | |
| CN101227233B (en) | Method and apparatus for sending physics uplink control signal in TDD system | |
| CN101926120B (en) | Method of transmitting ACK/NACK signal in wireless communication system | |
| CN101755399A (en) | Apparatus and method for transmitting of channel quality indicator and acknowledgement signals in sc-fdma communication systems | |
| CN109964521B (en) | Wireless telecommunication device and method | |
| US9955467B2 (en) | Method and BS for transmitting control information to UE, and method and UE for handling control information | |
| CN107689844B (en) | Method and device in wireless transmission | |
| CN101309132A (en) | Method for uplink confirm information transmission on uplink control channel | |
| US20080318531A1 (en) | Method for controlling allocating resources in a mobile radio communication network, corresponding transmitter and receiver | |
| KR101457121B1 (en) | Apparatus and method for self recovarable circuit mode resource allocation in broadband wireless communication system | |
| JPWO2018203438A1 (en) | Terminal and communication method | |
| CN111585718B (en) | Method and equipment used in UE (user Equipment) and base station for exempting from grant | |
| CN109756300B (en) | Method and device for indicating or receiving number of duplicate transmission copies | |
| CN104378178A (en) | Transmission method and device for confirming information | |
| CN109787708B (en) | Method and device for indicating or receiving redundancy version | |
| CN110445595B (en) | Low-delay wireless communication method and device | |
| CN109756257B (en) | Data transmission method and device for receiving end or transmitting end | |
| CN111447685A (en) | Method and device for low-delay UE and base station | |
| CN101605025A (en) | Data method of sending and receiving, data sending terminal and receiving terminal and transmission system | |
| WO2018121599A1 (en) | Data transmission method, data demodulation method, device and terminal | |
| KR101421253B1 (en) | Apparatus and method for supporting synchronous hybrid automatic repeat request in a broadband wireless communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |