CN108633036B - Control information transmission method and device - Google Patents
Control information transmission method and device Download PDFInfo
- Publication number
- CN108633036B CN108633036B CN201710184210.4A CN201710184210A CN108633036B CN 108633036 B CN108633036 B CN 108633036B CN 201710184210 A CN201710184210 A CN 201710184210A CN 108633036 B CN108633036 B CN 108633036B
- Authority
- CN
- China
- Prior art keywords
- transmission
- scheduling
- indication
- bit
- new data
- 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
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
-
- 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
Abstract
A control information transmission method and device, the control information transmission method includes: the base station transmits an uplink grant for at least one of the following transmission modes: terminating the scheduling-free transmission and the scheduling transmission; wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer; wherein the uplink grant includes at least one of the following indication information: new data indication, process number indication. In the embodiment of the disclosure, when the base station predicts that the correct data block cannot be received, the same data block needs to be retransmitted in a scheduling mode, or the base station receives the correct data block in advance and terminates the subsequent useless repeated transmission, the base station sends the uplink grant to terminate the repeated transmission of the terminal, thereby improving the spectral efficiency of the system. Meanwhile, the uplink grant can also be used for scheduling the uplink transmission of the terminal, so that the terminal does not need to detect downlink control information in various formats, and the complexity of processing a downlink control channel is prevented from increasing.
Description
Technical Field
The present disclosure relates to the field of wireless communications technologies, and in particular, to a control information transmission method and apparatus.
Background
With the increasing commercial perfection of the fourth generation mobile communication technology (4G,the 4th Generation mobile communication technology) Long Term Evolution (LTE) and Long Term Evolution-advanced (LTE-advanced/LTE-a, long-Term Evolution Advance) system, the technical index requirement on the next generation mobile communication technology, that is, the fifth generation mobile communication technology (5G,the 5th Generation mobile communication technology), is also higher. It is generally considered that the next generation mobile communication system should have characteristics such as ultra-high reliability and ultra-low delay transmission characteristics.
Disclosure of Invention
In view of this, the present disclosure provides the following.
A control information transmission method, comprising:
the base station transmits an uplink grant for at least one of the following transmission modes: terminating the scheduling-free transmission and the scheduling transmission;
wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer;
wherein the uplink grant includes at least one of the following indication information: new data indication, process number indication.
A control information receiving method, comprising:
the terminal receives the uplink authorization, and executes termination of the scheduling-free transmission and/or execution of the scheduling transmission according to the uplink authorization;
Wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer;
wherein the uplink grant includes at least one of the following indication information: new data indication, process number indication.
A control information transmission apparatus comprising:
the first sending module is used for sending an uplink grant, and the uplink grant is used for at least one of the following transmission modes: terminating the scheduling-free transmission and the scheduling transmission;
wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer;
wherein the uplink grant includes at least one of the following indication information: new data indication, process number indication.
A control information receiving apparatus comprising:
the receiving module is used for receiving the uplink authorization, and the uplink authorization comprises at least one of the following indication information: new data indication and process number indication;
the processing module is used for executing the termination of the scheduling-free transmission according to the uplink authorization; and/or the number of the groups of groups,
a transmission module, configured to perform scheduling transmission according to the uplink grant;
the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, wherein K is more than or equal to 1 and is an integer.
Embodiments of the present disclosure also provide a computer-readable storage medium storing computer-executable instructions that, when executed, implement the above-described methods.
According to the scheme, the base station sends the uplink authorization to terminate the repeated transmission of the terminal, namely, the base station judges that the correct data block cannot be received, the same data block is required to be retransmitted in a scheduling mode, or the base station receives the correct data block in advance, and the subsequent useless repeated transmission is required to be terminated, so that the repeated transmission of the uplink authorization to terminate the terminal is sent, and the spectral efficiency of the system is improved. Meanwhile, the uplink authorization can also be used for scheduling the uplink transmission of the terminal, so that the terminal does not need to detect downlink control information in various formats, the complexity of processing the downlink control channel is avoided from being increased, and the system overhead is saved.
Drawings
Fig. 1 is a flowchart of a control information transmission method according to a first embodiment of the present disclosure.
Fig. 2 is a flowchart of a control information receiving method according to a second embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of a control information transmission system according to a fifth embodiment of the present disclosure.
Fig. 4 is a flowchart of a control information transmission method according to a sixth embodiment of the present disclosure.
Fig. 5 is a schematic diagram of a base station transmitting an uplink grant to terminate retransmission in an application example of the present disclosure.
Fig. 6 is a schematic diagram of uplink transmission of new data scheduled while uplink grant is sent by a base station to terminate repeated transmission in an application example of the disclosure.
Fig. 7 is a schematic diagram of a base station transmitting uplink grant to terminate retransmission and schedule the same data retransmission in an application example of the present disclosure.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be arbitrarily combined with each other.
The index of ultra-low delay and ultra-high reliability in the 5G system is that the delay of the user plane is 1ms at present and simultaneously the reliability of 99.999 percent is satisfied.
In order to meet the requirements of ultra-low latency and ultra-high reliability, the conventional method is realized by hybrid automatic repeat request (HARQ, hybird Automatic Repeat reQuest), but the ultra-low latency may be directly caused by multiple retransmissions to not meet the requirements, so that the number of transmissions is limited even under the condition that the reliability is improved by using HARQ retransmissions. One possible way is to use repeated transmissions.
One problem with repeated transmissions is that the transmission efficiency is low, affecting the spectral efficiency of the system.
Embodiment one:
referring to fig. 1, a flowchart of a control information transmission method according to a first embodiment of the present disclosure is shown, where the control information transmission method includes:
step 101, the base station pre-judges that the correct data block cannot be received, and the same data block needs to be retransmitted in a dispatching mode; or the base station judges that the correct data block is received in advance and the subsequent useless repeated transmission is required to be terminated;
step 102, the base station sends an uplink grant signaling to the terminal, where the uplink grant signaling is used to instruct the terminal to terminate the scheduling-free transmission.
It can be seen that, in this embodiment, the base station transmits an uplink grant, where the uplink grant is used for at least one of the following transmission modes: terminating the scheduling-free transmission and the scheduling transmission;
the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, wherein K is more than or equal to 1 and is an integer. The scheduling-free transmission is a transmission scheme not requiring downlink control information scheduling, and is also called a grant-free transmission scheme. When k=1 in the repeated transmission K times, the actual corresponding effect is a single transmission without repetition, which belongs to a special case in the repeated transmission.
Wherein the uplink grant includes at least one of the following indication information: new Data Indication (NDI), process number indication. And the base station sends the uplink grant to terminate the repeated transmission and the scheduled transmission, so that the system spectrum efficiency is improved.
The indication information indicates the terminal to perform new data transmission in the same process; or the indication information indicates the terminal to retransmit the same data in the same process.
In this embodiment, when the uplink grant includes indication information, the indication information indicates that the terminal performs retransmission of the same data in the same process, and the method further includes:
the base station only demodulates the retransmitted physical uplink shared channel and does not combine with the first transmitted physical uplink shared channel, or the base station demodulates the retransmitted physical uplink shared channel after combining with the first transmitted physical uplink shared channel.
In this embodiment, the value indicated by the process number is a process of the scheduling-free transmission, and the determining manner of the scheduling-free transmission includes: when the scheduling-free transmission only supports a single process, the process number is a predefined value or a default value, or no process number is indicated in the uplink grant;
or when the scheduling-free transmission supports a plurality of processes, determining the process number by at least one of a transmission time interval index where the first transmission is positioned in the repeated transmission and the repeated transmission times. The transmission time interval index where the first transmission is in the repeated transmission includes: the subframe sequence number where the first transmission is in the repeated transmission or the time slot sequence number where the first transmission is in the repeated transmission.
In this embodiment, when the scheduling-free transmission supports a plurality of processes, the process number is determined by at least one of a transmission time interval index where a first transmission in the repeated transmission is located and a number of repeated transmissions, including:
the ratio of the transmission time interval index of the first transmission in the repeated transmission to the repeated times of the repeated transmission is rounded downwards to obtain a first result value, and the total process number supported by the repeated transmission is modulo the first result value obtained by rounding downwards to obtain the process number of the repeated transmission;
or, modulo the transmission time interval index of the first transmission in the repeated transmission to the total process number supported by the repeated transmission to obtain the process number of the repeated transmission.
Wherein, the transmission time interval index of the first transmission in the repeated transmission is: the radio frame number h+the number of subframes or slots, where h represents the number of uplink subframes or slots contained in the radio frame.
In this embodiment, when the indication information includes a new data indication, the new data indication field uses 2 bits, where the first bit is used to distinguish the indication mode; the second bit is used to indicate the data type.
In this embodiment, the indication manner includes: a flip indication or a direct indication; the data types include: new data or the same data; the first bit indication and the second bit indication comprise:
When the new data indication field first bit is 0, whether the second bit is flipped or not indicates new data or the same data; when the first bit is 1, the second bit directly indicates new data or the same data;
alternatively, when the first bit is 1, the second bit indicates whether new data or the same data is flipped or not using; when the first bit is 0, the second bit directly indicates new data or the same data.
In this embodiment, when the indication information includes a new data indication, a new data indication field uses 1 bit, including:
the new data indication domain determines different indication modes according to whether the process indicated by the process number indication bit domain in the uplink authorization is the same as the previous process without scheduling transmission;
or, using the overturn indication, wherein the reference value required by the same process when the scheduling-free transmission is terminated is a default value or a value configured by the base station; at this time, the terminal is only configured to support the first-pass grant-free mode, and the NDI rollover reference value in the UL grant for each repeated transmission of the same process is the default value or the value configured by the base station.
Or, using the rollover indication, the reference value required when the first scheduling-free transmission of the same process is terminated after the connection establishment of the radio resource control (RRC, radio Resource Control) is a default value or a value configured by the base station; at this time, the terminal is only configured to support the first-time grant-free mode, and the NDI rollover reference values in the UL grant for terminating the first repeated transmission of the same process are default values or values configured by the base station. The NDI inversion reference value in the UL grant of the non-first repetition transmission of the same process is the previous NDI value.
Or, using the overturn indication, when the first uplink data transmission of the same process is the scheduling-free transmission after the RRC connection is established, the reference value required by stopping the first scheduling-free transmission is a default value or a value configured by the base station. At this time, the terminal is configured to support the first transmission in a grant-free mode or a grant-based mode, and when the first uplink transmission in the same process is repeated transmission after the RRC connection is established, the NDI rollover reference value in the UL grant for terminating the first repeated transmission in the same process is the default value or the value configured by the base station. If the first uplink transmission in the same process is grant-based transmission, the NDI inversion reference value in the UL grant of the subsequent first repeated transmission is the previous NDI value. Similarly, the NDI inversion reference value in the UL grant transmitted not first repeatedly in the same process is the previous NDI value.
And for how the reference value is used: when the above-mentioned turn indication is performed, the indication value of the new data indication field needs to be compared with the reference value to determine whether the new data or the same data, when the indication value is the same as the reference value, the same data is used, and when the indication value is different from the reference value, the new data is used.
In this embodiment, the determining, by the new data indication field, a different indication manner according to whether a process indicated by the process number indication bit field in the uplink grant is the same as a previous process of the scheduling-free transmission includes:
When the process indicated by the process number indicating bit field is the same as the previous process of the scheduling-free transmission, the process is a direct indication, the new data indicating field is 0 to represent the same data, and 1 to represent new data; and when the process indicated by the process number indicating bit field is different from the previous process of the scheduling-free transmission, indicating to turn over, wherein the process is not turned over, and the turn over indicates new data.
Embodiment two:
referring to fig. 2, a flowchart of a control information receiving method according to a second embodiment of the present disclosure is shown, where the control information receiving method includes:
step 201, the terminal receives an uplink grant sent by the base station, where the uplink grant includes at least one of the following indication information: new data indication and process number indication;
step 202, the terminal terminates the scheduling-free transmission and/or performs the scheduling transmission according to the uplink grant; the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, wherein K is more than or equal to 1 and is an integer.
In this embodiment, when the terminal determines that the format of the uplink grant is that the base station instructs the terminal to terminate the scheduling-free transmission, the terminal terminates the scheduling-free transmission according to the uplink grant.
In this embodiment, the terminal further performs uplink transmission according to the uplink grant.
The terminal transmits new data in the same process according to the indication information; or the terminal retransmits the same data in the same process according to the indication information.
In this embodiment, the value indicated by the process number is a process of the scheduling-free transmission, and the determining manner of the scheduling-free transmission includes: when the scheduling-free transmission only supports a single process, the process number is a predefined value or a default value, or no process number is indicated in the uplink grant; or when the scheduling-free transmission supports a plurality of processes, determining the process number by at least one of a transmission time interval index where the first transmission is positioned in the repeated transmission and the repeated transmission times.
In this embodiment, when the scheduling-free transmission supports a plurality of processes, the process number is determined by at least one of a transmission time interval index where a first transmission in the repeated transmission is located and a number of repeated transmissions, including: the ratio of the transmission time interval index of the first transmission in the repeated transmission to the repeated times of the repeated transmission is rounded downwards to obtain a first result value, and the total process number supported by the repeated transmission is modulo the first result value obtained by rounding downwards to obtain the process number of the repeated transmission; or, modulo the transmission time interval index of the first transmission in the repeated transmission to the total process number supported by the repeated transmission to obtain the process number of the repeated transmission.
In this embodiment, when the indication information includes new data indication and is 2 bits, the terminal distinguishes an indication manner according to a first bit; the data type is distinguished according to the second bit.
In this embodiment, the indication manner includes: a flip indication or a direct indication; the data types include: new data or the same data; the first bit indication and the second bit indication comprise: when the new data obtained by the terminal indicates that the first bit of the domain is 0, whether the second bit is used for indicating the new data or the same data is overturned or not; when the first bit is 1, the second bit directly indicates new data or the same data; or when the new data obtained by the terminal indicates that the first bit of the domain is 1, whether the second bit is used for indicating the new data or the same data is flipped; when the first bit is 0, the second bit directly indicates new data or the same data.
In this embodiment, when the new data obtained by the terminal indicates that the domain uses 1 bit, it includes:
the terminal determines different indication modes according to whether the process indicated by the process number indication bit field in the uplink authorization is the same as the previous process of the scheduling-free transmission;
or, for the overturn indication, the reference value required by stopping the scheduling-free transmission is a default value or a value configured by the base station;
Or, for the overturn indication, the reference value required when the first scheduling-free transmission of the same process is terminated after the establishment of the radio resource control connection is a default value or a value configured by the base station;
or, for the overturn indication, when the first uplink data transmission of the same process is the scheduling-free transmission after the radio resource control connection is established, the reference value required for terminating the first scheduling-free transmission is a default value or a value configured by the base station.
In this embodiment, the determining, by the terminal, a different indication manner according to whether the process indicated by the process number indication bit field in the uplink grant and the previous process of the scheduling-free transmission are the same includes: when the process indicated by the process number indicating bit field is the same as the previous process of the scheduling-free transmission, the new data indicating field is 0 to represent the same data, and 1 to represent new data; when the process indicated by the process number indicating bit field is different from the previous process of the scheduling-free transmission, the process is indicated by turning, the same data is not turned, and the new data is indicated by turning.
Embodiment III:
a third embodiment of the present disclosure provides a control information transmission apparatus including:
The first sending module is used for sending an uplink grant, and the uplink grant is used for at least one of the following transmission modes: terminating the scheduling-free transmission and the scheduling transmission;
wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer;
wherein the uplink grant includes at least one of the following indication information: new data indication, process number indication.
In this embodiment, the determining manner of the process number indication included in the uplink grant sent by the first sending module is:
when the scheduling-free transmission only supports a single process, the process number indication bit field indicates a predefined value or a default value, or no process number indication exists in the uplink grant;
or when the scheduling-free transmission supports a plurality of processes, the process number of the scheduling-free transmission, indicated by the bit field, is determined by at least one of a transmission time interval index and the number of repeated transmissions, where the first transmission in the repeated transmissions is located.
In this embodiment, the determining manner of the process number indication included in the uplink grant sent by the first sending module is that when the repeated transmission supports a plurality of processes, the process number of the current scheduling-free transmission indicated by the process number indication bit field is determined by at least one of a transmission time interval index where the first transmission in the repeated transmission is located and the number of repeated transmissions, including:
The ratio of the transmission time interval index of the first transmission in the repeated transmission to the repeated times of the repeated transmission is rounded downwards to obtain a first result value, and the total process number supported by the repeated transmission is modulo the first result value obtained by rounding downwards to obtain the repeated transmission process number; or alternatively, the process may be performed,
and modeling the transmission time interval index of the first transmission in the repeated transmission and the total process number supported by the repeated transmission to obtain the current repeated transmission process number.
In this embodiment, when the indication information included in the uplink grant sent by the first sending module includes a new data indication, a new data indication field uses 2 bits, where a first bit is used to distinguish an indication mode; the second bit is used to indicate the data type.
In this embodiment, the indication manner of the indication information included in the uplink grant sent by the first sending module includes: a flip indication or a direct indication; the data types include: new data or the same data; the first bit indication and the second bit indication comprise:
when the new data indication field first bit is 0, whether the second bit is flipped or not indicates new data or the same data; when the first bit is 1, the second bit directly indicates new data or the same data;
Alternatively, when the first bit is 1, the second bit indicates whether new data or the same data is flipped or not using; when the first bit is 0, the second bit directly indicates new data or the same data.
In this embodiment, when the indication information included in the uplink grant sent by the first sending module includes a new data indication, a new data indication field uses 1 bit, including:
the new data indication domain determines different indication modes according to whether the process indicated by the process number indication bit domain in the uplink authorization is the same as the process repeatedly transmitted before;
or, using the overturn indication, wherein the reference value required by the same process when the scheduling-free transmission is terminated is a default value or a value configured by the base station;
or, using the rollover indication, the reference value required when the first scheduling-free transmission of the same process is terminated after the connection establishment of the radio resource control (RRC, radio Resource Control) is a default value or a value configured by the base station;
or, using the overturn indication, when the first uplink data transmission of the same process is the scheduling-free transmission after the RRC connection is established, the reference value required by stopping the first scheduling-free transmission is a default value or a value configured by the base station.
In this embodiment, the determining, by the new data indication field included in the indication information included in the uplink grant sent by the first sending module, a different indication mode according to whether a process indicated by a process number indication bit field in the uplink grant is the same as a previous process of scheduling-free transmission, includes:
when the process indicated by the process number indicating bit field is the same as the previous process of the scheduling-free transmission, the process is a direct indication, the new data indicating field is 0 to represent the same data, and 1 to represent new data; and when the process indicated by the process number indicating bit field is different from the previous process of the scheduling-free transmission, indicating to turn over, wherein the process is not turned over, and the turn over indicates new data.
The embodiment also provides a base station, which comprises the control information transmission device.
Embodiment four:
a fourth embodiment of the present disclosure provides a control information receiving apparatus including:
the receiving module is used for receiving the uplink authorization, and the uplink authorization comprises at least one of the following indication information: new data indication and process number indication;
the processing module is used for executing the termination of the scheduling-free transmission according to the uplink authorization; and/or the number of the groups of groups,
A transmission module, configured to perform scheduling transmission according to the uplink grant;
the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, wherein K is more than or equal to 1 and is an integer.
In this embodiment, when the indication information included in the uplink grant received by the receiving module includes a process number indication, the transmitting module determines a process number of the current repeated transmission according to a value of the process number indication bit field.
In this embodiment, when the indication information of the uplink grant received by the receiving module includes a new data indication, the transmitting module obtains an indication mode and a data type according to a value of the new data indication field.
In this embodiment, when the new data indication field included in the indication information of the uplink grant received by the receiving module uses 2 bits, the transmitting module distinguishes the indication mode according to the first bit; the data type is distinguished according to the second bit.
In this embodiment, when the new data indication field first bit included in the indication information of the uplink grant received by the receiving module is 0, whether the second bit is used to flip the indication new data or the same data; when the first bit is 1, the second bit directly indicates new data or the same data; or when the first bit of the new data indication domain included in the indication information of the uplink authorization received by the receiving module is 1, whether the second bit is used for indicating the new data or the same data in a turnover mode or not; when the first bit is 0, the second bit directly indicates new data or the same data.
In this embodiment, when the new data indication field included in the indication information of the uplink grant received by the receiving module uses 1 bit, the method includes:
the transmission module determines different indication modes according to whether the process indicated by the process number indication bit field in the uplink authorization is the same as the previous process of the scheduling-free transmission;
or the reference value required by stopping the scheduling-free transmission is a default value or a value configured by the base station, and is a turnover indication;
or the reference value required by the first scheduling-free transmission of the same process after the establishment of the radio resource control connection is a default value or a value configured by the base station, and is a turnover indication;
or when the first uplink data transmission of the same process after the establishment of the radio resource control connection is the scheduling-free transmission, the reference value required by the first scheduling-free transmission is a default value or a value configured by the base station, and the reference value is a turnover indication.
In this embodiment, when the process indicated by the process number indication bit field included in the indication information of the uplink grant received by the receiving module is the same as the previous process of scheduling-free transmission, the new data indication field is 0 and represents the same data, and 1 represents new data; when the process indicated by the process number indicating bit field is different from the previous process of the scheduling-free transmission, the process is indicated by turning, the same data is not turned, and the new data is indicated by turning.
The embodiment also provides a terminal, which comprises the control information receiving device.
Fifth embodiment:
referring to fig. 3, a schematic structural diagram of a control information transmission system according to a fifth embodiment of the present disclosure is shown, where the control information transmission system includes:
the first sending module is used for sending uplink authorization, and the uplink authorization comprises at least one of the following indication information: new data indication and process number indication;
a receiving module, configured to receive the uplink grant;
the processing module is used for executing the termination of the scheduling-free transmission according to the uplink authorization; and/or the number of the groups of groups,
a transmission module, configured to perform scheduling transmission according to the uplink grant;
the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, wherein K is more than or equal to 1 and is an integer.
For further details regarding the structure of the control information transmission system according to the present embodiment, please refer to the detailed description of the control information transmission device and the control information receiving device in the above embodiments.
Example six:
referring to fig. 4, a flowchart of a control information transmission method according to a sixth embodiment of the present disclosure is shown, where the control information transmission method includes:
step 401, the base station sends an uplink grant, where the uplink grant is used for at least one of the following transmission modes: terminating the scheduling-free transmission and the scheduling transmission;
Wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer;
wherein the uplink grant includes at least one of the following indication information: new data indication and process number indication;
step 402, the terminal receives the uplink grant, and performs termination of the scheduling-free transmission and/or performs scheduling transmission according to the uplink grant.
For further details regarding the control information transmission method of the present embodiment, please refer to the detailed description of the control information transmission method and the control information receiving method in the above embodiments.
The technical solutions of the embodiments of the present disclosure are illustrated below by examples in specific applications.
Example 1:
the base station first pre-allocates uplink resources for grant-free transmission, in which the terminal transmits uplink data in K repeated transmissions. The uplink resource may be a resource that is shared by the terminal alone or with other terminals. For example, referring to fig. 5, the terminal UE1 repeats transmission of uplink data information K times in a grant-free manner from subframe 0 in the radio frame N, and the terminal UE1 receives k1=3 times on the first PUSCH (physical uplink shared channel) and then the base station transmits UL grant signaling in subframe 3 in the radio frame N to notify the UE1 to terminate the repetition transmission. The UL grant signal is scrambled with a C-RNTI (Cell Radio Network Temporary Identifier, cell radio network temporary identity) or an intra-group RNTI (Radio Network Temporary Identifier, radio network temporary identity) sequence number, and after the UE1 descrambles the RNTI and checks the CRC (Cyclic Redundancy Check ) correctly, it is confirmed that the UL grant is DCI (Downlink Control Information ) sent to itself by the base station. At this time, after receiving the uplink grant signaling, UE1 stops the remaining k2=2 repeated transmissions that have not yet been transmitted. In this case, the timing relationship n+1 subframes is taken as an example. Description: the present embodiment is illustrated with the structure of the radio frame and the subframe, but is not limited thereto, and the subframe may be a slot, for example.
The UL grant terminates the repeated transmission of UE1 and continues to schedule the UE1 to perform new data transmission in the same process. Referring to fig. 6, the first physical uplink shared channel of the repeated transmission is terminated at this time, and the same process is scheduled to transmit new data and the second physical uplink shared channel. Namely, the base station successfully demodulates the uplink data sent by the UE1 this time after receiving k1 times, 0< k1< k, and terminates the rest repeated transmission in advance.
At this time, the same process is determined in two ways. Case one: if the retransmission only supports a single process, the process number indication bit field in the UL grant may indicate a predefined value or default value, such as a value of 0. And in the second case, if the repeated transmission supports a plurality of processes, determining the process number of the repeated transmission according to the transmission time interval index where the first transmission is positioned and the repeated times. For example, by the following formula:
HARQ Process ID＝[floor(CURRENT_TTI/repetition_number)]modulo HARQ_process_number；
wherein the HARQ Process ID represents the Process number used in the repeated transmission; current_tti= [ (sfn×10) +subframe number ] represents a transmission time interval index where the first transmission in the repeated transmission is located, in this example, SFN is a radio frame number, subframe number is a subframe number, and of course, this subframe may be replaced by a slot, and subframe number may also be replaced by a slot number; repetition_number indicates the number of repetitions of the present repetition transmission; harq_process_number represents the total number of procedures supported by the retransmission. The number of repetitions is preferably a preconfigured number of repetitions K. The Process number indication bit field in the UL grant indicates that the Process number is the Process number HARQ Process ID used for the current retransmission.
The new data indicates whether the bit field NDI is 2bits, and whether the new data is directly indicated or flipped is distinguished by the MSB (Most Significant Bit ), where msb=1 indicates the direct indication, and whether the new data is identical is distinguished by the LSB (Least Significant Bit ), where lsb=1 indicates the new data.
In one embodiment, in the following subframes, UE1 detects UL grant of the same format and transmits uplink data by grant-based (scheduling-based) scheme. At this time, the new data in the UL grant indicates that the 2bits high bit msb=0 of the NDI is a flip indication, and the lsb=1 is flipped compared with the LSB of the NDI of the same process before, so that the new data is transmitted.
According to the uplink scheduling method, the grant-free repeated transmission is terminated by sending the uplink authorization signaling, namely, after the base station receives the correct data block in advance, the subsequent useless repeated transmission is terminated, and the system spectrum efficiency is improved. Meanwhile, the uplink authorization signaling can also be used for grant-based scheduling, so that the terminal does not need to detect downlink control information in various formats, and the complexity of processing a downlink control channel is prevented from increasing.
Example 2:
the base station first pre-allocates uplink resources for grant-free transmission, and in the resources, the terminal sends uplink data in K times of repeated transmission. The uplink resource may be a resource that is shared by the terminal alone or with other terminals. For example, as shown in fig. 5, the terminal UE1 starts to repeat transmission of uplink data information K times in a grant-free manner from subframe 0 in the radio frame N, and, after receiving k1=3 times, the base station transmits UL grant signaling to notify the UE1 to terminate the repeated transmission in subframe 3 in the radio frame N, through the first PUSCH (physical uplink shared channel) bearer. The UL grant is scrambled by using a C-RNTI or an intra-group RNTI sequence number, and after the UE1 descrambles the RNTI and verifies that the CRC is correct, the UL grant is confirmed to be DCI sent to itself by the base station. At this time, after receiving the uplink grant signaling, UE1 stops the remaining k2=2 repeated transmissions that have not yet been transmitted. In this case, the timing relationship n+1 subframes is taken as an example. Description: the present embodiment is illustrated with the structure of the radio frame and the subframe, but is not limited thereto, and the subframe may be a slot, for example.
The UL grant terminates the repeated transmission of the UE1 and simultaneously continues to schedule the UE1 to retransmit the same data in the same process, and referring to fig. 7, the first transmission is terminated at this time as a first uplink physical shared channel for the repeated transmission, and simultaneously, a retransmission of the same data in the same process is scheduled to transmit a second uplink physical shared channel for the same data. That is, the base station considers that the uplink data sent by the UE1 at this time cannot be demodulated after receiving k1 times, 0< k1< k, and terminates the remaining repeated transmission in advance, so that the UE1 retransmits the same data in a scheduling manner.
At this time, the same process is determined in two ways. Case one: if the retransmission only supports a single process, the process number indication bit field in the UL grant may indicate a predefined value or default value, such as a value of 0. And a second case: if the repeated transmission supports a plurality of processes, the process number of the repeated transmission is determined by the first subframe sequence number and/or the repeated times of the repeated transmission.
For example, the process number used for this repeated transmission is determined by the following formula: only by the first subframe/slot number.
HARQ Process id=current_tti module harq_process_number, where HARQ Process ID represents a Process number used for the CURRENT retransmission, current_tti= [ (sfn×10) +subframe number ] represents a first subframe number of the retransmission, SFN is a radio frame number, and subframe number is a subframe number; harq_process_number represents the total number of procedures supported by the retransmission. The number of repetitions is preferably a preconfigured number of repetitions K. The Process number indication bit field in the UL grant indicates that the Process number is the Process number HARQ Process ID used for the current retransmission.
The new data indicates whether the bit field NDI is 2bits, and whether the new data is directly indicated or flipped is distinguished by the MSB, wherein msb=1 indicates the direct indication, whether the new data is identical is distinguished by the LSB, and wherein lsb=0 indicates the identical data.
Optionally, the base station performs scheduling retransmission on the same data, indicates to retransmit the resource position and modulation coding mode of the second physical uplink shared channel, and may also indicate to retransmit the redundancy version of the second physical uplink shared channel, that is, use the same redundancy version as the first physical uplink shared channel or a different redundancy version.
Alternatively, the base station may demodulate only the retransmitted second physical uplink shared channel and not combine with the first physical uplink shared channel of the first transmission, or the base station may demodulate the retransmitted second physical uplink shared channel after combining with the first physical uplink shared channel of the first transmission.
Optionally, in the following subframes, the UE1 detects UL grant of the same format and transmits uplink data based on grant-based mode. At this time, the new data in the UL grant indicates 2bits of the NDI of the bit field, the msb=0 indicates a flip indication, and the lsb=1, and when the new data is flipped compared with the LSB of the NDI of the same process, the new data is transmitted.
According to the uplink scheduling method, the grant-free repeated transmission is terminated by sending the uplink grant signaling, namely, the base station pre-judges that the correct data block cannot be received, and retransmits the same data block in a scheduling mode, so that the system spectrum efficiency is improved. Meanwhile, the uplink authorization signaling can also be used for grant-based scheduling, so that the terminal does not need to detect downlink control information in various formats, and the complexity of processing a downlink control channel is prevented from increasing.
Example 3:
the base station first pre-allocates uplink resources for grant-free transmission, and in the resources, the terminal sends uplink data in K times of repeated transmission. The uplink resource may be a resource that is shared by the terminal alone or with other terminals. For example, referring to fig. 5, the terminal UE1 repeats transmission of uplink data information K times in a grant-free manner from subframe 0 in the radio frame N, and the terminal UE receives the uplink data information K1=3 times on the first PUSCH (physical uplink shared channel) and then the base station transmits an UL grant (uplink grant) to notify the UE1 to terminate the repeated transmission in subframe 3 in the radio frame N. The UL grant is scrambled by using a C-RNTI or an intra-group RNTI sequence number, and after the UE1 descrambles the RNTI and verifies that the CRC is correct, the UL grant is confirmed to be DCI sent to itself by the base station. At this time, UE1 stops the remaining k2=2 repeated transmissions that have not yet been transmitted after receiving the uplink grant. In this case, the timing relationship n+1 subframes is taken as an example. Description: the present embodiment is illustrated with the structure of the radio frame and the subframe, but is not limited thereto, and the subframe may be a slot, for example.
The UL grant terminates the repeated transmission of UE1 while also continuing to schedule the UE to perform new data transmission in the same process. Referring to fig. 6, the first PUSCH is terminated in repeated transmission at this time, and simultaneously, the same process is scheduled to transmit new data and the second PUSCH. Namely, the base station successfully demodulates the uplink data sent by the UE1 this time after receiving k1 times, 0< k1< k, and terminates the rest repeated transmission in advance.
At this time, the same process is determined in two ways. Case one: if the retransmission only supports a single process, the process number indication bit field in the UL grant may indicate a predefined value or default value, such as a value of 0. And a second case: if the repeated transmission supports a plurality of processes, the process number of the repeated transmission is determined by the first subframe sequence number and/or the repeated times of the repeated transmission.
For example, the process number of the present repeated transmission is determined by the following formula:
HARQ Process ID＝[floor(CURRENT_TTI/repetition_number)]modulo HARQ_process_number,
or HARQ Process id=current_tti module HARQ Process number,
the HARQ Process ID indicates a Process number used in the present repeated transmission, current_tti= [ (sfn×10) +subframe number ] indicates a first subframe number of repeated repetition, SFN is a radio frame number, and subframe number is a subframe number; repetition_number indicates the number of repetitions of the present repetition transmission; harq_process_number represents the total number of procedures supported by the retransmission. The number of repetitions is preferably a preconfigured number of repetitions K. The Process number indication bit field in the UL grant indicates that the Process number is the Process number HARQ Process ID used for the current retransmission.
The new data indicates that the bit field NDI is 1bit, and the 1bit indication mode is determined according to whether the process number used in the current repeated transmission is the same as the process number used in the previous repeated transmission, as shown in table 1, when the process number is the same, the process is indicated directly, and when the process number is different, the process is indicated by whether to overturn. The process number indicated in the UL grant is the same as the process of the previous retransmission, and 1bit of the NDI bit field is indicated directly. At this time, a 1bit indication of 0 indicates the same data.
TABLE 1
In one embodiment, in the following subframes, UE1 detects UL grant of the same format and transmits uplink data based on grant-based scheme. At this time, the 1bit indication of the new data indication bit field NDI in the UL grant is 1, and the new data transmission is performed when the new data indication bit field NDI is inverted compared with the NDI indication in the UL grant of the same process before, and the process is not the process number of the previous repeated transmission.
By the uplink scheduling method in this embodiment, the grant-free retransmission is terminated by sending the uplink grant, that is, the base station receives in advance and correctly terminates the subsequent useless retransmission, so as to improve the spectrum efficiency of the system. Meanwhile, the uplink authorization can also be used for grant-based scheduling, so that the terminal does not need to detect downlink control information in various formats, and the complexity of processing a downlink control channel is prevented from increasing.
Example 4:
the base station first pre-allocates uplink resources for grant-free transmission, and in the resources, the terminal sends uplink data in K times of repeated transmission. The uplink resource may be a resource that is shared by the terminal alone or with other terminals. For example, referring to fig. 5, the terminal UE1 repeats transmission of uplink data information K times in a grant-free manner from subframe 0 in the radio frame N, and the terminal UE receives the uplink data information K1=3 times on the first PUSCH (physical uplink shared channel) and then the base station transmits an UL grant (uplink grant) to notify the UE1 to terminate the repeated transmission in subframe 3 in the radio frame N. The UL grant is scrambled by using a C-RNTI or an intra-group RNTI sequence number, and after the UE1 descrambles the RNTI and verifies that the CRC is correct, the UL grant is confirmed to be DCI sent to itself by the base station. At this time, UE1 stops the remaining k2=2 repeated transmissions that have not yet been transmitted after receiving the uplink grant. In this case, the timing relationship n+1 subframes is taken as an example. Description: the present embodiment is illustrated with the structure of the radio frame and the subframe, but is not limited thereto, and the subframe may be a slot, for example.
The UL grant terminates the repeated transmission of UE1 while also continuing to schedule the UE to perform new data transmission in the same process. Referring to fig. 6, the first PUSCH is terminated in repeated transmission at this time, and simultaneously, the same process is scheduled to transmit new data and the second PUSCH. Namely, the base station successfully demodulates the uplink data sent by the UE1 this time after receiving k1 times, 0< k1< k, and terminates the rest repeated transmission in advance.
At this time, the same process is determined in two ways. Case one: if the retransmission only supports a single process, the process number indication bit field in the UL grant may indicate a predefined value or default value, such as a value of 0. And a second case: if the repeated transmission supports a plurality of processes, the process number of the repeated transmission is determined by the first subframe sequence number and/or the repeated times of the repeated transmission.
For example, the process number of the present repeated transmission is determined by the following formula:
HARQ Process ID＝[floor(CURRENT_TTI/repetition_number)]modulo HARQ_process_number,
or HARQ Process id=current_tti module HARQ Process number,
the HARQ Process ID indicates a Process number used in the present repeated transmission, current_tti= [ (sfn×10) +subframe number ] indicates a first subframe number of repeated repetition, SFN is a radio frame number, and subframe number is a subframe number; repetition_number indicates the number of repetitions of the present repetition transmission; harq_process_number represents the total number of procedures supported by the retransmission. The number of repetitions is preferably a preconfigured number of repetitions K. The Process number indication bit field in the UL grant indicates that the Process number is the Process number HARQ Process ID used for the current retransmission.
The new data indicates that the bit field NDI is 1bit, the 1bit indication mode is to use the flip indication, and the reference value required by stopping the scheduling-free transmission is the default value or the value configured by the base station. The reference value is a default value at this time, for example, the value is 0. When the 1bit indication of the NDI bit field in the UL grant is 0, indicating the terminal to transmit the same data in the scheduled resource, and ending the grant-free repeated transmission; when 1bit of the NDI bit field in the UL grant indicates 1 to indicate new data, the terminal is instructed to transmit the new data in the scheduled resource, and grant-free repeat transmission is terminated.
Or, at this time, the new data indication bit field NDI is 1bit, and the 1bit indication mode is to use the rollover indication, and the reference value required when the first scheduling-free transmission of the same process is terminated after the radio resource control connection is established is a default value or a value configured by the base station. The reference value is a value configured by the base station, for example, a value of 1. The grant-free repeat transmission is the first grant-free repeat transmission of the same process after the RRC connection is established, and when 1bit of an NDI bit field in the UL grant indicates that 1 represents the same data, the terminal is instructed to transmit the same data in the scheduled resource, and the grant-free repeat transmission is terminated; when the 1bit indication of the NDI bit field in the UL grant is 0, indicating new data, indicating the terminal to transmit the new data in the scheduled resource, and the grant-free repeat transmission is terminated.
Or at this time, the new data indication bit field NDI is 1bit, the 1bit indication mode is to use the overturn indication, when the first uplink data transmission of the same process after the radio resource control connection is established is the scheduling-free transmission, the reference value required by stopping the first scheduling-free transmission is the default value or the value configured by the base station. The reference value is a default value at this time, for example, the value is 0. The grant-free repeat transmission is the first uplink transmission of the same process after the RRC connection is established, and is the grant-free repeat transmission, when the 1bit indication of the NDI bit field in the UL grant is 0, the terminal is instructed to transmit the same data in the scheduled resource, and the grant-free repeat transmission is terminated; when 1bit of the NDI bit field in the UL grant indicates 1 to indicate new data, the terminal is instructed to transmit the new data in the scheduled resource, and grant-free repeat transmission is terminated.
In one embodiment, in the following subframes, UE1 detects UL grant of the same format and transmits uplink data based on grant-based scheme. At this time, the 1bit indication of the new data indication bit field NDI in the UL grant is 1, and the new data transmission is performed when the new data indication bit field NDI is flipped compared with the NDI indication in the UL grant of the same process.
By the uplink scheduling method in this embodiment, the grant-free retransmission is terminated by sending the uplink grant, that is, the base station receives in advance and correctly terminates the subsequent useless retransmission, so as to improve the spectrum efficiency of the system. Meanwhile, the uplink authorization can also be used for grant-based scheduling, so that the terminal does not need to detect downlink control information in various formats, and the complexity of processing a downlink control channel is prevented from increasing.
The embodiment of the disclosure realizes that when the base station receives the correct data block in advance or judges that the correct data block cannot be received, the repeated transmission of the terminal is terminated so as to improve the frequency spectrum efficiency. The embodiment of the disclosure considers that the scheduling mode of repeated transmission not only comprises traditional dynamic scheduling through downlink control information, but also comprises that the terminal autonomously transmits under the condition of no downlink scheduling signaling, and the repeated transmission is terminated through the downlink control information. The embodiment of the disclosure provides a unified downlink control information format which is simultaneously applicable to termination of repeated transmission and traditional dynamic scheduling, so that the repeated transmission is terminated without introducing downlink control information of different formats, the terminal does not need to detect the downlink control information of multiple formats, the complexity of processing a downlink control channel is avoided, and the system overhead is saved.
In addition, the embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions implement the method of the embodiment of the present disclosure when executed:
the computer-readable storage medium includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a Processor (Processor) to perform some steps of the methods described in the various embodiments of the disclosure. And the computer-readable storage medium includes: a U-disk, a removable hard disk, a Read Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing embodiment numbers of the present disclosure are merely for description and do not represent advantages or disadvantages of the embodiments. From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the embodiments of the present disclosure may be essentially or portions contributing to the prior art, embodied in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method described in the embodiments of the present disclosure.
The foregoing description of the preferred embodiments of the present disclosure is provided only and not intended to limit the disclosure so that various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (14)
1. A control information transmission method, comprising:
the base station transmits an uplink grant, wherein the uplink grant is used for the following transmission modes: terminating the scheduling-free transmission and the scheduling transmission;
wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer;
wherein the uplink grant includes at least one of the following indication information: new data indication and process number indication;
the value indicated by the process number is a process of the scheduling-free transmission, and the determining mode of the process of the scheduling-free transmission comprises the following steps:
when the scheduling-free transmission only supports a single process, the process number is a predefined value or a default value, or no process number is indicated in the uplink grant;
or when the scheduling-free transmission supports a plurality of processes, determining the process number by at least one of a transmission time interval index where the first transmission is positioned in the repeated transmission and the repeated transmission times.
2. The method of claim 1, wherein when the scheduling-free transmission supports a plurality of processes, the process number is determined by at least one of a transmission time interval index and a number of repeated transmissions in which the first transmission is performed in the repeated transmission, comprising:
the ratio of the transmission time interval index of the first transmission in the repeated transmission to the repeated times of the repeated transmission is rounded downwards to obtain a first result value, and the total process number supported by the repeated transmission is modulo the first result value obtained by rounding downwards to obtain the process number of the repeated transmission;
or, modulo the transmission time interval index of the first transmission in the repeated transmission to the total process number supported by the repeated transmission to obtain the process number of the repeated transmission.
3. The method of claim 1, wherein when the indication information includes a new data indication, a new data indication field uses 2 bits, wherein a first bit is used to distinguish indication means; the second bit is used to indicate the data type.
4. The method of claim 3, wherein,
the indication mode comprises the following steps: a flip indication or a direct indication; the data types include: new data or the same data; the first bit indication and the second bit indication comprise:
When the new data indication field first bit is 0, whether the second bit is flipped or not indicates new data or the same data; when the first bit is 1, the second bit directly indicates new data or the same data;
alternatively, when the first bit is 1, the second bit indicates whether new data or the same data is flipped or not using; when the first bit is 0, the second bit directly indicates new data or the same data.
5. The method of claim 1, wherein when the indication information includes a new data indication, the new data indication field uses 1 bit, comprising:
the new data indication domain determines different indication modes according to whether the process indicated by the process number indication bit domain in the uplink authorization is the same as the previous process without scheduling transmission;
or using the overturn indication, wherein the reference value required by stopping the scheduling-free transmission is a default value or a value configured by the base station;
or, using the overturn indication, wherein the reference value required by the first scheduling-free transmission of the same process after the establishment of the radio resource control connection is a default value or a value configured by the base station;
or, using the overturn indication, when the first uplink data transmission of the same process is the scheduling-free transmission after the radio resource control connection is established, the reference value required by stopping the first scheduling-free transmission is a default value or a value configured by the base station.
6. The method of claim 5, wherein the new data indication field determines a different indication mode according to whether a process indicated by a process number indication bit field in the uplink grant is the same as a process of a previous scheduling-free transmission, comprising:
when the process indicated by the process number indicating bit field is the same as the previous process of the scheduling-free transmission, the process is a direct indication, the new data indicating field is 0 to represent the same data, and 1 to represent new data; and when the process indicated by the process number indicating bit field is different from the previous process of the scheduling-free transmission, indicating to turn over, wherein the process is not turned over, and the turn over indicates new data.
7. A control information receiving method, comprising:
the terminal receives the uplink authorization, and executes the termination of the scheduling-free transmission and the execution of the scheduling transmission according to the uplink authorization;
wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer;
wherein the uplink grant includes at least one of the following indication information: new data indication and process number indication;
the value indicated by the process number is a process of the scheduling-free transmission, and the determining mode of the process of the scheduling-free transmission comprises the following steps:
When the scheduling-free transmission only supports a single process, the process number is a predefined value or a default value, or no process number is indicated in the uplink grant;
or when the scheduling-free transmission supports a plurality of processes, determining the process number by at least one of a transmission time interval index where the first transmission is positioned in the repeated transmission and the repeated transmission times.
8. The method of claim 7, wherein when the scheduling-free transmission supports a plurality of processes, the process number is determined by at least one of a transmission time interval index and a number of repeated transmissions at which the first transmission is performed in the repeated transmission, comprising:
the ratio of the transmission time interval index of the first transmission in the repeated transmission to the repeated times of the repeated transmission is rounded downwards to obtain a first result value, and the total process number supported by the repeated transmission is modulo the first result value obtained by rounding downwards to obtain the process number of the repeated transmission;
or, modulo the transmission time interval index of the first transmission in the repeated transmission to the total process number supported by the repeated transmission to obtain the process number of the repeated transmission.
9. The method of claim 7, wherein,
when the indication information comprises new data indication and is 2 bits, the terminal distinguishes an indication mode according to a first bit; the data type is distinguished according to the second bit.
10. The method of claim 9, wherein,
the indication mode comprises the following steps: a flip indication or a direct indication; the data types include: new data or the same data; the first bit indication and the second bit indication comprise:
when the new data obtained by the terminal indicates that the first bit of the domain is 0, whether the second bit is used for indicating the new data or the same data is overturned or not; when the first bit is 1, the second bit directly indicates new data or the same data; or when the new data obtained by the terminal indicates that the first bit of the domain is 1, whether the second bit is used for indicating the new data or the same data is flipped; when the first bit is 0, the second bit directly indicates new data or the same data.
11. The method of claim 7, wherein,
when the new data obtained by the terminal indicates that the domain uses 1 bit, the method comprises the following steps:
the terminal determines different indication modes according to whether the process indicated by the process number indication bit field in the uplink authorization is the same as the previous process of the scheduling-free transmission;
or, for the overturn indication, the reference value required by stopping the scheduling-free transmission is a default value or a value configured by the base station;
or, for the overturn indication, the reference value required when the first scheduling-free transmission of the same process is terminated after the establishment of the radio resource control connection is a default value or a value configured by the base station;
Or, for the overturn indication, when the first uplink data transmission of the same process is the scheduling-free transmission after the radio resource control connection is established, the reference value required for terminating the first scheduling-free transmission is a default value or a value configured by the base station.
12. The method of claim 11, wherein the determining, by the terminal, a different indication mode according to whether a process indicated by a process number indication bit field in the uplink grant is the same as a process of a previous scheduling-free transmission, includes:
when the process indicated by the process number indicating bit field is the same as the previous process of the scheduling-free transmission, the new data indicating field is 0 to represent the same data, and 1 to represent new data; when the process indicated by the process number indicating bit field is different from the previous process of the scheduling-free transmission, the process is indicated by turning, the same data is not turned, and the new data is indicated by turning.
13. A control information transmission apparatus, characterized by comprising:
the first sending module is used for sending an uplink authorization, and the uplink authorization is used for the following transmission modes: terminating the scheduling-free transmission and the scheduling transmission;
wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer;
Wherein the uplink grant includes at least one of the following indication information: new data indication and process number indication;
the value indicated by the process number is a process of the scheduling-free transmission, and the determining mode of the process of the scheduling-free transmission comprises the following steps:
when the scheduling-free transmission only supports a single process, the process number is a predefined value or a default value, or no process number is indicated in the uplink grant;
or when the scheduling-free transmission supports a plurality of processes, determining the process number by at least one of a transmission time interval index where the first transmission is positioned in the repeated transmission and the repeated transmission times.
14. A control information receiving apparatus, comprising:
the receiving module is used for receiving the uplink authorization, and the uplink authorization comprises at least one of the following indication information: new data indication and process number indication;
the processing module is used for executing the termination of the scheduling-free transmission according to the uplink authorization; and, a step of, in the first embodiment,
a transmission module, configured to perform scheduling transmission according to the uplink grant;
wherein the number of repeated transmission times of the scheduling-free transmission is K times or the number of repeated transmission times of the scheduling transmission is K times, and K is more than or equal to 1 and is an integer;
the value indicated by the process number is a process of the scheduling-free transmission, and the determining mode of the process of the scheduling-free transmission comprises the following steps:
When the scheduling-free transmission only supports a single process, the process number is a predefined value or a default value, or no process number is indicated in the uplink grant;
or when the scheduling-free transmission supports a plurality of processes, determining the process number by at least one of a transmission time interval index where the first transmission is positioned in the repeated transmission and the repeated transmission times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710184210.4A CN108633036B (en) | 2017-03-24 | 2017-03-24 | Control information transmission method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710184210.4A CN108633036B (en) | 2017-03-24 | 2017-03-24 | Control information transmission method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108633036A CN108633036A (en) | 2018-10-09 |
| CN108633036B true CN108633036B (en) | 2023-09-01 |
Family
ID=63707697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710184210.4A Active CN108633036B (en) | 2017-03-24 | 2017-03-24 | Control information transmission method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108633036B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11838239B2 (en) * | 2018-07-16 | 2023-12-05 | Lg Electronics Inc. | Method for receiving HARQ-ACK feedback in wireless communication system, and device therefor |
| CA3097223C (en) * | 2018-10-12 | 2023-02-21 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method, terminal equipment and network equipment for repeatedly transmitting information |
| EP3925120A4 (en) * | 2019-02-15 | 2022-07-27 | ZTE Corporation | Resource indication scheme for repeated transmissions |
| CN110460419B (en) * | 2019-08-09 | 2022-05-31 | 北京紫光展锐通信技术有限公司 | Uplink data transmission method and device, storage medium, terminal and base station |
| CN110557238B (en) * | 2019-08-19 | 2020-11-17 | 西安理工大学 | Data transmission method and device for 5G system |
| CN111092695B (en) * | 2019-11-05 | 2023-09-26 | 中兴通讯股份有限公司 | Retransmission number determining method, indicating method, device, terminal, communication node and medium |
| CN110995397A (en) * | 2019-11-15 | 2020-04-10 | 深圳职业技术学院 | Reliable information processing method in Internet of things |
| WO2021155513A1 (en) * | 2020-02-05 | 2021-08-12 | Qualcomm Incorporated | Early termination of multi-slot pusch using an uplink grant dci |
| CN114070485B (en) * | 2020-08-04 | 2023-12-26 | 中国信息通信研究院 | Data transmission method and device |
| CN114698114A (en) * | 2020-12-31 | 2022-07-01 | 展讯通信（上海）有限公司 | Method and device for terminating data transmission |
| WO2022165760A1 (en) * | 2021-02-05 | 2022-08-11 | 北京小米移动软件有限公司 | Early termination method and apparatus, communication device, and storage medium |
| CN115191092B (en) * | 2021-02-05 | 2023-10-10 | 北京小米移动软件有限公司 | Early termination method, device, equipment and storage medium |
| WO2023097613A1 (en) * | 2021-12-02 | 2023-06-08 | Oppo广东移动通信有限公司 | Information determination method and apparatus, and terminal device |
| CN116436569A (en) * | 2021-12-31 | 2023-07-14 | 大唐移动通信设备有限公司 | Method, device, equipment and storage medium for terminating data transmission |
| WO2023201493A1 (en) * | 2022-04-18 | 2023-10-26 | Oppo广东移动通信有限公司 | Wireless communication methods, terminal devices and network devices |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141671A (en) * | 2006-09-07 | 2008-03-12 | 中兴通讯股份有限公司 | Load control method in high speed uplink packet access cell |
| CN101645760A (en) * | 2008-08-05 | 2010-02-10 | 中兴通讯股份有限公司 | Method for sending uplink scheduling authorization, device and base station |
| CN102907060A (en) * | 2010-05-25 | 2013-01-30 | 交互数字专利控股公司 | Retuning gaps and scheduling gaps in discontinuous reception |
| CN105792362A (en) * | 2014-12-22 | 2016-07-20 | 上海贝尔股份有限公司 | Wireless resource allocation method |
| CN105991243A (en) * | 2015-01-29 | 2016-10-05 | 中兴通讯股份有限公司 | Data repeat transmission method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5610861B2 (en) * | 2010-06-10 | 2014-10-22 | シャープ株式会社 | Mobile station apparatus, base station apparatus, radio communication system, radio communication method, and integrated circuit |
-
2017
- 2017-03-24 CN CN201710184210.4A patent/CN108633036B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141671A (en) * | 2006-09-07 | 2008-03-12 | 中兴通讯股份有限公司 | Load control method in high speed uplink packet access cell |
| CN101645760A (en) * | 2008-08-05 | 2010-02-10 | 中兴通讯股份有限公司 | Method for sending uplink scheduling authorization, device and base station |
| CN102907060A (en) * | 2010-05-25 | 2013-01-30 | 交互数字专利控股公司 | Retuning gaps and scheduling gaps in discontinuous reception |
| CN105792362A (en) * | 2014-12-22 | 2016-07-20 | 上海贝尔股份有限公司 | Wireless resource allocation method |
| CN105991243A (en) * | 2015-01-29 | 2016-10-05 | 中兴通讯股份有限公司 | Data repeat transmission method and device |
Non-Patent Citations (1)
| Title |
|---|
| "25321_CRxxxx_(Rel-8)_R2-096680_Clarification on Cell Reselection Indication procedure for 1.28 Mcps TDD".《3GPP tsg_ran\WG2_RL2》.2009,全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108633036A (en) | 2018-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108633036B (en) | Control information transmission method and device | |
| US11595991B2 (en) | Method for indicating the allocated resources for a HARQ message in a random access procedure for a low-complexity, narrowband terminal | |
| EP3200528B1 (en) | Device-to-device communication methods and apparatuses | |
| US11343836B2 (en) | Two-step signaling of uplink scheduling assignments | |
| TWI696360B (en) | Method for feeding back ack/nack information, terminal equipment and network equipment | |
| EP2903312B1 (en) | Method and device for processing trunking service, base station and user equipment | |
| US20130148563A1 (en) | Apparatus and methods for management, configuration and control signaling of network coded harq in mobile communication systems | |
| US9510368B2 (en) | Method and arrangement for acknowledgement of contention-based uplink transmissions in a telecommunication system | |
| CN109644092B (en) | Method, apparatus, and readable medium for wireless communication | |
| EP3345447B1 (en) | Reduction of crc field in compact dci message on m-pdcch for low cost mtc devices | |
| JP7372284B2 (en) | Method and apparatus for indicating time delay in a wireless communication system | |
| US11705992B2 (en) | Infrastructure equipment, wireless telecommunications system and method | |
| EP3386254B1 (en) | Cross-carrier scheduling methods, and apparatuses | |
| US10757685B2 (en) | Device and method of performing data transmission in bandwidth parts | |
| EP2403308B1 (en) | Method of performing data transmission corresponding to semi-persistent resources in wireless communications system | |
| CA3037910A1 (en) | Systems and methods for determining frame structure and association timing | |
| US10555233B2 (en) | Device and method of handling transmissions |
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 |