CN107645777B - Method and device in wireless transmission - Google Patents
Method and device in wireless transmission Download PDFInfo
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- CN107645777B CN107645777B CN201610585129.2A CN201610585129A CN107645777B CN 107645777 B CN107645777 B CN 107645777B CN 201610585129 A CN201610585129 A CN 201610585129A CN 107645777 B CN107645777 B CN 107645777B
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Abstract
The invention discloses a method and a device in wireless transmission. The UE receives the first signaling in the first set of time-frequency resources and then detects L target signaling in the second set of time-frequency resources. The first signaling is used to determine the second set of time-frequency resources. The second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer larger than 1, and L is a positive integer not smaller than K. The first signaling and the target signaling are physical layer signaling, respectively. And the time domain resource occupied by the target signaling belongs to one of the K time intervals. The invention realizes that a plurality of data scheduling aiming at different delay requirements are provided for the UE in a given time window by establishing the relation between the first signaling and the L target signaling, thereby reducing the blind detection times of the UE while ensuring the scheduling flexibility, reducing the cost of the control signaling and improving the overall system performance and the spectrum efficiency.
Description
Technical Field
The present invention relates to a transmission scheme of radio signals in a wireless communication system, and more particularly, to a method and apparatus in a user and a base station supporting low delay communication.
Background
In the existing LTE (Long-Term Evolution) and LTE-a (Long Term Evolution advanced, enhanced Long Term Evolution) systems, a TTI (Transmission Time Interval), a Subframe (Subframe), or a PRB (Physical Resource Block) (Pair) corresponds to one ms (milli-second, millisecond) in Time. An LTE subframe includes two Time slots (Time slots), which are a first Time Slot and a second Time Slot, respectively, and the first Time Slot and the second Time Slot occupy the first half millisecond and the second half millisecond of the LTE subframe, respectively.
One important application in the Reduced Latency topic of 3GPP (3rd Generation Partner Project) Release 14 is low Latency communication. For the requirement of reducing the delay, the conventional LTE frame structure needs to be redesigned, and correspondingly, a new scheduling method needs to be considered.
Disclosure of Invention
In the Study Item (Study subject) of Release 14 latency reduction, Two-level (Two-level) DCI (Downlink Control Information) is proposed and needs to be continuously evaluated in the subsequent Work Item (Work subject). In contrast, the design and evaluation of the Overhead (Overhead), Complexity (Complexity), Potential Scheduling Restriction (Potential Scheduling Restriction), and Search Space (Search Space) caused by the introduction of two-level DCI will continue to expand.
An intuitive design approach for two-level DCI is to combine a Slow (Slow) DCI with a Fast (Fast) DCI. The two DCIs respectively carry scheduling information of the UE part, and the Slow DCI remains unchanged in one subframe, while the Fast Fast DCI is used for scheduling indication of sTTI (Short TTI). Separate blind detection is adopted for both Slow DCI and Fast DCI. However, when there are multiple schedules corresponding to sTTI with different durations in the coverage of one Slow DCI for one UE, the complexity of this method is very high.
The present invention provides a solution to the above problems. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. For example, embodiments and features in embodiments in the UE of the present application may be applied in a base station and vice versa.
The invention discloses a method in UE supporting low-delay communication, which comprises the following steps:
-step a. receiving first signalling in a first time-frequency resource;
-step b. detecting L target signalling in the second set of time frequency resources;
wherein the first signaling is used to determine the second set of time-frequency resources. The second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer larger than 1, and L is a positive integer not smaller than K. The first signaling and the target signaling are physical layer signaling, respectively. And the time domain resource occupied by the target signaling belongs to one of the K time intervals. At least two of the K time intervals are orthogonal in the time domain.
The method of the invention establishes the connection between the first signaling and the second time frequency resource set, and simplifies the detection of the target signaling while flexibly configuring the second time frequency resource. Meanwhile, the first signaling simultaneously aims at a plurality of target signaling, the target signaling can correspond to data transmission corresponding to a plurality of different delay requirements, and the UE can realize data transmission of a plurality of different durations in one time window.
As an embodiment, the time interval occupies a positive integer number of multicarrier symbols in the time domain.
As a sub-embodiment of this embodiment, the Multi-Carrier symbol is one of { OFDM (Orthogonal Frequency Division Multiplexing) symbol containing CP (Cyclic Prefix), DFT-s-OFDM (Discrete Fourier Transform spread OFDM) symbol containing CP, SC-FDMA (Single-Carrier Frequency Division Multiplexing Access) symbol, FBMC (Fi filter Bank Multi Carrier) Multi-Carrier symbol }.
As an example, the two time intervals are orthogonal meaning that: there is no instant belonging to both time intervals.
In one embodiment, the first set of time-frequency resources and the second set of time-frequency resources belong to a first time window in the time domain. The duration of the first time window in the time domain is not less than 1 ms.
As a sub-embodiment of this embodiment, the first signaling is for the first time window.
As an embodiment, the duration of the K time intervals is the same.
As an embodiment, the duration of at least two of the K time intervals is different.
As an example, the duration of the time interval is less than 1 millisecond.
As an embodiment, the K time intervals are consecutive in the time domain.
As one embodiment, the first signaling is DCI.
As an embodiment, the first signaling is Cell-Specific.
As an embodiment, the first signaling is UE specific.
As an embodiment, the first signaling is UE group specific, the UE group including one or more UEs.
As a sub-embodiment of this embodiment, the CRC (Cyclic Redundancy Check) of the first signaling is scrambled by a UE group specific RNTI.
As an embodiment, the CRC of the first signaling is scrambled by a C-RNTI (Cell Radio Network temporary identity).
As an embodiment, the first signaling is identified by a default (i.e. not requiring explicit configuration) RNTI.
As a sub-embodiment of this embodiment, the default RNTI (Radio Network temporary identity) is cell-common.
As a sub-embodiment of this embodiment, the CRC of the first signaling is scrambled by the default RNTI.
As a sub-embodiment of this embodiment, the default RNTI is used to determine the time-frequency resources occupied by the first signaling.
As a sub-embodiment of this embodiment, the default RNTI is used to generate the demodulation reference signal corresponding to the first signaling.
As a sub-embodiment of this embodiment, the default RNTI is related to the duration of a given time interval. The given time interval is the time interval occupied by a given data channel. The given data channel is scheduled by the target signaling associated with the first signaling.
As an embodiment, the target signaling is DCI.
As an embodiment, the CRC of the target signaling is scrambled by a C-RNTI.
As one embodiment, the target signaling is for a given time interval, the given time interval belongs to the first time window, and a duration of the given time interval in a time domain is not greater than 0.5 ms.
As an embodiment, the first signaling is used to determine a category of time intervals supported by the UE in the first time window.
The above embodiment has a benefit that, when the UE can support transmission corresponding to multiple time intervals, the serving base station of the UE can configure the UE through the first signaling, so that the UE can perform data transmission for multiple time intervals in the first time window.
As a sub-embodiment of this embodiment, the class of the time interval is at least one of { class I, class II, class III }. Wherein class I is for a time interval in which the number of multicarrier symbols occupied in the time domain is equal to 2, class II is for a time interval in which the number of multicarrier symbols occupied in the time domain is equal to 4, and class III is for a time interval in which the number of multicarrier symbols occupied in the time domain is equal to 7.
Specifically, according to an aspect of the present invention, the method is characterized in that the step B further includes the steps of:
-step b1. receiving Q target signalings in the second set of time-frequency resources.
Wherein Q is a positive integer not greater than L, and the Q target signaling are Q of the L target signaling.
The method is characterized in that the UE detects the Q target signals from the L target signals.
As one embodiment, Q is equal to L.
As one embodiment, the Q is not greater than the K.
As an embodiment, the second time frequency resource set includes L second time frequency resources, and the L second time frequency resources correspond to the L target signaling one to one. And Q second time frequency resources in the L second time frequency resources are directed to the UE, and the Q second time frequency resources correspond to the Q target signaling one by one.
The embodiment has the advantage that the second time-frequency resource corresponds to the search space of the target signaling, thereby improving the flexibility of the configuration of the target signaling.
As a sub-embodiment of this embodiment, the time domain resources occupied by the Q target signaling belong to Q time intervals, respectively, and the Q time intervals are Q of the K time intervals.
As a sub-embodiment of this embodiment, the first signaling explicitly indicates the time-frequency positions of the Q second time-frequency resources in the second set of time-frequency resources.
As a sub-embodiment of this embodiment, the time-frequency resource positions of the Q second time-frequency resources in the second time-frequency resource set are fixed, and the first signaling implicitly indicates the time-frequency positions of the second time-frequency resources in the second time-frequency resource set.
As a sub-embodiment of this embodiment, Q is equal to 2.
As an additional embodiment of the sub-embodiments, the 2 second target subsets of time-frequency resources are respectively for a first search space and a second search space of the UE. The duration of the time interval occupied by the first search space is equal to 2 multicarrier symbols and the duration of the time interval occupied by the second search space is equal to 7 multicarrier symbols.
As a sub-embodiment of this embodiment, Q is equal to 3.
As an additional embodiment of the sub-embodiments, the 3 second target time-frequency resource subsets are respectively for a first search space, a second search space and a third search space of the UE. The duration of the time interval occupied by the first search space is equal to 2 multicarrier symbols, the duration of the time interval occupied by the second search space is equal to 7 multicarrier symbols, and the duration of the time interval occupied by the third search space is equal to 4 multicarrier symbols.
As a sub-embodiment of this embodiment, the first signaling used for determining the second set of time-frequency resources refers to: the first signaling is used to determine the Q second time-frequency resources from the second set of time-frequency resources, and the UE blindly detects the Q target signaling in the second time-frequency resources.
As a sub-embodiment of this embodiment, the first signaling used for determining the second set of time-frequency resources refers to: the first signaling is used to determine the Q second time-frequency resources from the second set of time-frequency resources, and the AL (Aggregation Level) used by the Q target signaling is linearly related to the AL used by the first signaling.
As an additional embodiment of this sub-embodiment, the linear correlation means that the AL used for the first signaling is equal to the AL used for the Q target signaling.
As an additional embodiment of this sub-embodiment, the linear correlation means that the AL used for the first signaling is Z times greater than the AL used for the Q target signaling. Wherein Z is a fixed positive integer greater than 1.
The sub-embodiments and the auxiliary embodiments have the advantages that the AL of the target signaling is associated with the AL of the first signaling, so that the blind detection times of the target signaling are reduced, and the implementation complexity is simplified.
As a sub-embodiment of this embodiment, the first signaling used for determining the second set of time-frequency resources refers to: the first signaling is used to determine the Q second time-frequency resources from the second set of time-frequency resources, and the control channel index adopted by a given target signaling in a given second time-frequency resource is linearly related to the control channel index adopted by the first signaling in the first time-frequency resource. The given target signaling is any one of the Q target signaling, and the given second time-frequency resource is a second time-frequency resource corresponding to the given target signaling in the Q second time-frequency resources. The Control Channel Index is a CCE Index (Control Channel Element Index), or the Control Channel Index is an ECCE Index (Enhanced Control Channel Element Index).
As an additional embodiment of this sub-embodiment, the linear correlation means that the control channel index adopted by the first signaling in the first time-frequency resource is equal to the control channel index adopted by the given target signaling in the given second time-frequency resource.
As a subsidiary embodiment of this sub-embodiment, said linear correlation means that the control channel index employed by said first signalling in said first time-frequency resource is equal to the control channel index employed by said given target signalling in said given second time-frequency resource plus a given Offset. Wherein the given Offset is predefined or indicated by higher layer signaling.
As an example of this subsidiary embodiment, said given Offset is related to the duration of the time interval to which the given wireless signal corresponds. Wherein the given wireless signal is scheduled by the target signaling.
The sub-embodiments, the dependent embodiments and the examples have the advantages that the number of blind detections for the target signaling is reduced and the implementation complexity is simplified by associating the control channel index of the target signaling with the control channel index of the first signaling.
As a sub-embodiment of this embodiment, the first signaling used for determining the second set of time-frequency resources refers to: the first signaling is used to determine the Q second time-frequency resources from the second set of time-frequency resources, and the time-frequency position of the start RU occupied by a given target signaling in a given second target subset of time-frequency resources is the same as the time-frequency position of the start RU occupied by the first signaling in the first time-frequency resources. The given target signaling is any one of the Q target signaling, and the given second time-frequency resource is a second time-frequency resource corresponding to the given target signaling in the Q second time-frequency resources. The RU occupies one multicarrier symbol in the time domain and one subcarrier interval in the frequency domain.
The sub-embodiment has the advantages that the time-frequency position of the starting RU occupied by the target signaling is linked with the time-frequency position of the starting RU occupied by the first signaling, so that the blind detection times of the target signaling are reduced, and the realization complexity is simplified.
As an embodiment, the Q target signalings share the second set of time-frequency resources.
The special feature of the foregoing embodiment is that the Q target signaling shares the same time-frequency resource set, and the time-frequency resource set is the second time-frequency resource set.
As a sub-embodiment of this embodiment, Q is equal to 1.
As a sub-embodiment of this embodiment, the first signaling used for determining the second set of time-frequency resources refers to: the AL used for the target signaling is linearly related to the AL used for the first signaling.
As a subsidiary embodiment of this sub-embodiment, the linear correlation means that the AL used for the first signaling is equal to the AL used for the target signaling.
As an additional embodiment of this sub-embodiment, the linear correlation means that the AL used for the first signaling is a positive integer multiple of the AL used for the target signaling.
As a sub-embodiment of this embodiment, the first signaling used for determining the second set of time-frequency resources refers to: the control channel index adopted by the target signaling in the second time frequency resource set is linearly related to the control channel index adopted by the first signaling in the first time frequency resource. Wherein the control channel Index is CCEIndex, or the control channel Index is ECCE Index.
As an additional embodiment of this sub-embodiment, the linear correlation means that the control channel index adopted by the first signaling in the first time-frequency resource is equal to the control channel index adopted by the target signaling in the second time-frequency resource set.
As a subsidiary embodiment of this sub-embodiment, the linear correlation means that the control channel index adopted by the first signaling in the first time-frequency resource is equal to the control channel index adopted by the target signaling in the second set of time-frequency resources plus a given Offset (Offset). Wherein the given Offset is predefined or indicated by higher layer signaling.
As an example of this subsidiary embodiment, said given Offset is related to the duration of the time interval to which the given wireless signal corresponds. Wherein the given wireless signal is scheduled by the target signaling.
As a sub-embodiment of this embodiment, the first signaling used for determining the second set of time-frequency resources refers to: the time frequency position of the starting RU occupied by the target signaling in the second time frequency resource set is the same as the time frequency position of the starting RU occupied by the first signaling in the first time frequency resource set. The RU occupies one multicarrier symbol in the time domain and one subcarrier interval in the frequency domain.
The three sub-embodiments are characterized in that the blind detection times of the target signaling are reduced, and the implementation complexity is simplified.
Specifically, according to an aspect of the present invention, the method is characterized by further comprising the steps of:
-step c. operating Q radio signals.
Wherein the operation is a reception or the operation is a transmission. The Q target signaling are respectively used to determine Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used to determine the Q configuration information. The configuration information includes { corresponding time domain resource occupied by the wireless signal, corresponding frequency domain resource occupied by the wireless signal, at least one of MCS (Modulation and Coding Status), NDI (New Data Indicator), RV (Redundancy Version), HARQ (hybrid automatic Repeat reQuest) process number }.
For one embodiment, the wireless signal includes physical layer data.
As an embodiment, the operation is receiving, and a Physical layer Channel corresponding to the wireless signal is a Short Latency Physical Downlink Shared Channel (sPDSCH).
As an embodiment, the operation is receiving, and a transmission Channel corresponding to the wireless signal is a DL-SCH (Downlink Shared Channel).
As an embodiment, the operation is transmission, and a Physical layer Channel corresponding to the wireless signal is a Short Latency Physical Uplink Shared Channel (sPUSCH).
As an embodiment, the operation is sending, and a transmission Channel corresponding to the wireless signal is UL-SCH (Uplink Shared Channel).
As an embodiment, the time domain resources occupied by the Q wireless signals respectively belong to Q time intervals, and the Q time intervals are Q of the K time intervals.
As a sub-embodiment of this embodiment, the time domain resource occupied by the wireless signal and the time domain resource occupied by the corresponding target signaling belong to the same time interval.
As one embodiment, the operation is receiving and the Q wireless signals are all operated in the first time window.
As one embodiment, a given wireless signal occupies a given time interval in the time domain. The given wireless signal is one of the Q wireless signals, and the duration of the given time interval is no greater than 0.5 ms.
Specifically, according to an aspect of the present invention, the method is characterized in that the step a further includes the following step a 0:
step A0. receives second signaling, which is used to determine a third set of time-frequency resources.
Wherein the second set of time frequency resources is a subset of the third set of time frequency resources.
The method is characterized in that the second time-frequency resource set can be flexibly configured by the base station.
In one embodiment, the third set of time-frequency resources further comprises the first time-frequency resources.
As a sub-embodiment of this embodiment, the first signaling is used to determine the second set of time-frequency resources from the third set of time-frequency resources.
As an embodiment, the time-frequency resource occupied by the first time-frequency resource in the third time-frequency resource set is fixed in position.
As an embodiment, the second signaling is RRC (Radio resource control) signaling dedicated to UE (UE-Specific).
As one embodiment, the second signaling is Cell-Specific RRC signaling.
Specifically, according to an aspect of the present invention, the method is characterized by further comprising the steps of:
performing Q HARQ-ACK (hybrid automatic repeat request Acknowledgement) information.
Wherein the operation is a receive and the execution is a transmit, or the operation is a transmit and the execution is a receive. The Q HARQ-ACK information is used to determine whether the Q wireless signals are decoded correctly, respectively.
As an embodiment, the HARQ-ACK information includes 1 information bit, and the corresponding wireless signal includes one Transport Block (TB).
As an embodiment, at least one of the Q HARQ-ACK messages includes P information bits, where P is greater than 1, and the corresponding wireless signal includes P TBs, where the P information bits are respectively used to indicate whether the P TBs are decoded correctly.
As an embodiment, the Q HARQ-ACK information are located in different time intervals in the time domain.
As an embodiment, an uplink DMRS (demodulation reference Signal) for demodulating given HARQ-ACK information occupies M multicarrier symbols in a time domain. The M is a positive integer, and the value of the M is determined by the second target signaling. The given HARQ-ACK information is one of the Q HARQ-ACK information.
In one embodiment, there are first HARQ-ACK information and second HARQ-ACK information in the Q pieces of HARQ-ACK information, the first HARQ-ACK information occupies a first time interval, the second HARQ-ACK information occupies a second time interval, and a duration of the first time interval is different from a duration of the second time interval.
Specifically, according to an aspect of the present invention, the method is characterized in that the step D further includes the steps of:
-step D0. receiving fourth signaling, said fourth signaling being used for determining a fourth set of time-frequency resources.
Wherein the Q HARQ-ACK information is transmitted in the fourth set of time-frequency resources.
The method is characterized in that the fourth time-frequency resource set is flexibly configured through the fourth signaling, so that the frequency spectrum resources are utilized more efficiently.
As an embodiment, the time domain resources occupied by the Q HARQ-ACK information respectively belong to Q time intervals, and the fourth time frequency resource set includes the Q time intervals in the time domain.
As an embodiment, the duration of the Q time intervals is the same.
As an embodiment, at least two of the Q time intervals are different in duration.
As an example, the duration of the time interval is less than 1 millisecond.
As an embodiment, the fourth set of time-frequency resources includes N PRB pairs in the frequency domain. And N is a positive integer.
As a sub-embodiment of this embodiment, N is an even number greater than 0, and the N PRB pairs are symmetrically distributed in the frequency domain at the center frequency of the system bandwidth.
As an embodiment, the time-frequency resources of the fourth set of time-frequency resources in a given time interval constitute a given set of time-frequency resources, and all time-frequency resources of the given set of time-frequency resources are used for transmission of a given HARQ-ACK information. The given HARQ-ACK information is one of the Q HARQ-ACK information. The given time interval is a time interval occupied by the given HARQ-ACK information.
As a sub-embodiment of this embodiment, the start time of the given time interval is T1(ms) and the start time of the target time interval is (T + T1) (ms). The target time interval is a time interval occupied by a radio signal corresponding to the given HARQ-ACK information.
As an additional embodiment of this sub-embodiment, T is equal to a positive integer.
As a sub-embodiment of this sub-embodiment, the duration of the given time interval is R (ms), and T is equal to a positive integer multiple of R.
As an additional embodiment of this sub-embodiment, the T is determined by scheduling target signaling of a given wireless signal. The given wireless signal is a wireless signal to which the given HARQ-ACK information corresponds.
As an embodiment, the fourth signaling is UE-specific RRC signaling.
As an embodiment, the fourth signaling is cell-specific RRC signaling.
As an embodiment, at least one of { time domain resource, frequency domain resource, code domain resource } occupied by the given HARQ-ACK information is related to a time-frequency resource location occupied by the given target signaling. Wherein the given HARQ-ACK information is one of the Q HARQ-ACK information, and the given target signaling is target signaling corresponding to the given HARQ-ACK information among the Q target signaling.
As an embodiment, at least one of { time domain resource, frequency domain resource, code domain resource } occupied by the given HARQ-ACK information is related to a control channel index of a given target signaling in a given search space. Wherein the given HARQ-ACK information is one of the Q HARQ-AC information, a given target signaling is a target signaling corresponding to the given HARQ-ACK information in the Q target signaling, and the given search space is a second time-frequency resource set corresponding to the target signaling. The Control Channel Index is a CCE Index (Control Channel Element Index), or the Control Channel Index is an ECCE Index (Enhanced Control Channel Element Index).
The invention discloses a method in a base station supporting low-delay communication, which comprises the following steps:
-step a. transmitting first signalling in first time-frequency resources;
-step b. configuring L target signalings in the second set of time-frequency resources;
wherein the first signaling is used to determine the second set of time-frequency resources. The second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer larger than 1, and L is a positive integer not smaller than K. The first signaling and the target signaling are physical layer signaling, respectively. And the time domain resource occupied by the target signaling belongs to one of the K time intervals. At least two of the K time intervals are orthogonal in the time domain.
Specifically, according to an aspect of the present invention, the method is characterized in that the step B further includes the steps of:
-step b1. sending Q target signalings in the second set of time-frequency resources.
Wherein Q is a positive integer not greater than L, and the Q target signaling are Q of the L target signaling.
Specifically, according to an aspect of the present invention, the method is characterized by further comprising the steps of:
-step c. Q radio signals are performed.
Wherein the performing is transmitting or the performing is receiving. The Q target signaling are respectively used to determine Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used to determine the Q configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }.
As an embodiment, the performing is transmitting, and the physical layer channel corresponding to the wireless signal is sPDSCH.
In one embodiment, the performing is transmitting and the transmission channel corresponding to the wireless signal is a DL-SCH.
As an embodiment, the performing is receiving, and a physical layer channel corresponding to the wireless signal is sPUSCH.
As an embodiment, the performing is receiving and a transmission channel corresponding to the wireless signal is UL-SCH.
Specifically, according to an aspect of the present invention, the method is characterized in that the step a further includes the following step a 0:
step A0. sends second signaling, which is used to determine a third set of time-frequency resources.
Wherein the second set of time frequency resources is a subset of the third set of time frequency resources.
Specifically, according to an aspect of the present invention, the method is characterized by further comprising the steps of:
-step d. operating Q HARQ-ACK information.
Wherein the performing is transmitting and the operating is receiving, or the performing is receiving and the operating is transmitting. The Q HARQ-ACK information is used to determine whether the Q wireless signals are decoded correctly, respectively.
Specifically, according to an aspect of the present invention, the method is characterized in that the step D further includes the steps of:
step D0., sending fourth signaling, said fourth signaling being used for determining a fourth set of time-frequency resources.
Wherein the Q HARQ-ACK information is transmitted in the fourth set of time-frequency resources.
The invention discloses a user equipment used for low-delay communication, which comprises the following modules:
-a first receiving module: means for receiving first signaling in a first time-frequency resource;
-a first processing module: for detecting L target signaling in the second set of time-frequency resources;
-a second processing module: for operating the Q wireless signals;
-a third processing module: for performing Q HARQ-ACK messages.
Wherein the first signaling is used to determine the second set of time-frequency resources. The second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer larger than 1, and L is a positive integer not smaller than K. The first signaling and the target signaling are physical layer signaling, respectively. And the time domain resource occupied by the target signaling belongs to one of the K time intervals. At least two of the K time intervals are orthogonal in the time domain. The operation is receiving and the execution is sending, or the operation is sending and the execution is receiving. The Q target signaling are respectively used to determine Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used to determine the Q configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }. The Q HARQ-ACK information is used to determine whether the Q wireless signals are decoded correctly, respectively.
In one embodiment, the second processing module is configured to receive Q wireless signals, and the third processing module is configured to send Q HARQ-ACK information.
In one embodiment, the second processing module is configured to send Q wireless signals, and the third processing module is configured to receive Q HARQ-ACK information.
In one embodiment, the first receiving module is further configured to receive second signaling, the second signaling being used to determine a third set of time-frequency resources. Wherein the second set of time frequency resources is a subset of the third set of time frequency resources.
For an embodiment, the first processing module is further configured to receive Q target signaling in the second set of time-frequency resources. Wherein Q is a positive integer not greater than L, and the Q target signaling are Q of the L target signaling.
In one embodiment, the third processing module is further configured to receive a fourth signaling, and the fourth signaling is used to determine a fourth set of time-frequency resources. Wherein the Q HARQ-ACK information is transmitted in the fourth set of time-frequency resources.
The invention discloses a base station device used for low-delay communication, which comprises the following modules:
-a first sending module: for transmitting first signaling in a first time-frequency resource;
-a fourth processing module: for configuring L target signalings in the second time-frequency resource set;
-a fifth processing module: for executing Q wireless signals;
-a sixth processing module: for operating Q HARQ-ACK information.
Wherein the first signaling is used to determine the second set of time-frequency resources. The second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer larger than 1, and L is a positive integer not smaller than K. The first signaling and the target signaling are physical layer signaling, respectively. And the time domain resource occupied by the target signaling belongs to one of the K time intervals. At least two of the K time intervals are orthogonal in the time domain. The performing is sending and the operating is receiving, or the performing is receiving and the operating is sending. The Q target signaling are respectively used to determine Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used to determine the Q configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }. The Q HARQ-ACK information is used to determine whether the Q wireless signals are decoded correctly, respectively.
As an embodiment, the fifth processing module is configured to send Q wireless signals, and the sixth processing module is configured to receive Q HARQ-ACK information.
For an embodiment, the fifth processing module is configured to receive Q wireless signals, and the sixth processing module is configured to send Q HARQ-ACK information.
In one embodiment, the first sending module is further configured to send second signaling, and the second signaling is used to determine a third set of time-frequency resources. Wherein the second set of time frequency resources is a subset of the third set of time frequency resources.
For an embodiment, the fourth processing module is further configured to send Q target signaling in the second set of time-frequency resources. Wherein Q is a positive integer not greater than L, and the Q target signaling are Q of the L target signaling.
In one embodiment, the sixth processing module is further configured to send fourth signaling, and the fourth signaling is used to determine a fourth set of time-frequency resources. Wherein the Q HARQ-ACK information is transmitted in the fourth set of time-frequency resources.
Compared with the prior art, the invention has the following technical advantages:
-enabling data transmission for a plurality of different delay requirements in said first time window by associating said first signalling with said L target signalling. And further, the system scheduling flexibility is improved, and the frequency spectrum efficiency is increased.
By associating the first signaling with the L target signaling, the first technical advantage is achieved while the complexity of receiving the target signaling is reduced, so as to reduce the complexity of implementing the UE, increase the processing speed of the UE, and create conditions for implementing low-delay transmission.
By designing the second signaling and the fourth information, time-frequency resources for transmitting the target signaling and the HARQ-ACK information are flexibly configured, so that flexibility of resource configuration of a system is improved, and further spectrum efficiency is increased.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 shows a flow diagram of the transmission of the Q radio signals according to an embodiment of the invention;
fig. 2 shows a flow diagram of the transmission of the Q radio signals according to another embodiment of the invention;
FIG. 3 shows a schematic view of the first time window according to an embodiment of the invention;
fig. 4 shows a schematic diagram of the second set of time-frequency resources according to an embodiment of the invention;
fig. 5 shows a schematic diagram of the fourth set of time-frequency resources according to an embodiment of the invention;
fig. 6 shows a block diagram of a processing device in a UE according to an embodiment of the present invention.
Fig. 7 shows a block diagram of a processing means in a base station according to an embodiment of the invention;
Detailed Description
The technical solutions of the present invention will be further described in detail with reference to the accompanying drawings, and it should be noted that the features of the embodiments and examples of the present application may be arbitrarily combined with each other without conflict.
Example 1
Embodiment 1 illustrates a flow chart of transmission of one of the Q radio signals according to the present invention, as shown in fig. 1. In fig. 1, base station N1 is a serving cell maintaining base station for UE U2. Wherein the steps identified in blocks F0 and F1 are optional.
For theBase station N1Sending a second signaling in step S10, the second signaling being used for determining a third set of time-frequency resources; transmitting fourth signaling in step S11, the fourth signaling being used to determine a fourth set of time-frequency resources; transmitting first signaling in a first time-frequency resource in step S12; in step S13, L target signaling are configured in the second time-frequency resource set; in step S14, Q target signaling are sent in the second set of time-frequency resources; transmitting Q wireless signals in step S15; q HARQ-ACK information are received in step S16.
For theUE U2Receiving second signaling in step S20, the second signaling being used for determining a third set of time-frequency resources; receiving fourth signaling in step S21, the fourth signaling being used to determine a fourth set of time-frequency resources; in step S22 in the firstReceiving a first signaling in a time frequency resource; detecting L target signaling in the second set of time-frequency resources in step S23; receiving Q target signalings in the second set of time-frequency resources in step S24; receiving Q wireless signals in step S25; q HARQ-ACK information are transmitted in step S26.
As a sub-embodiment, the time domain position and the frequency domain position of the first time frequency resource are predefined.
As a sub-embodiment, the time domain position and the frequency domain position of the first time-frequency resource are configured through a higher layer signaling.
As a subsidiary embodiment of this sub-embodiment, the higher layer signalling is UE-specific RRC signalling.
As a subsidiary embodiment of this sub-embodiment, the higher layer signalling is cell-specific RRC signalling.
As a sub-embodiment, the second signaling is also used to confirm the time domain position and the frequency domain position of the first time-frequency resource.
As a sub embodiment, the HARQ-ACK information occupies a positive integer number of RUs (Resource Unit) by CDM (Orthogonal Code division multiplexing). The RU occupies one multicarrier symbol in the time domain and one subcarrier interval in the frequency domain.
As an example of this sub-embodiment, the RU is equal to RE (Resource Element) of LTE.
Example 2
Embodiment 2 illustrates a flow chart of transmission of Q radio signals according to another embodiment of the present invention, as shown in fig. 2. In fig. 2, base station N3 is the serving cell maintaining base station for UE U4. Wherein the steps identified in blocks F2 and F3 are optional.
For theBase station N3Sending a second signaling in step S30, the second signaling being used for determining a third set of time-frequency resources; transmitting fourth signaling in step S31, the fourth signaling being used to determine a fourth set of time-frequency resources; transmitting first signaling in a first time-frequency resource in step S32; in step S33, in the second time-frequency resourceConfiguring L target signalings in a set; in step S34, Q target signaling are sent in the second set of time-frequency resources; receiving Q wireless signals in step S35; q HARQ-ACK information are transmitted in step S36.
For theUE U4Receiving second signaling in step S40, the second signaling being used for determining a third set of time-frequency resources; receiving fourth signaling in step S41, the fourth signaling being used to determine a fourth set of time-frequency resources; receiving a first signaling in a first time-frequency resource in step S42; detecting L target signaling in the second set of time-frequency resources in step S43; receiving Q target signalings in the second set of time-frequency resources in step S44; transmitting Q wireless signals in step S45; q HARQ-ACK information are received in step S46.
As a sub-embodiment, the time domain position and the frequency domain position of the first time frequency resource are predefined.
As a sub-embodiment, the time domain position and the frequency domain position of the first time-frequency resource are configured through a higher layer signaling.
As a subsidiary embodiment of this sub-embodiment, the higher layer signalling is UE-specific RRC signalling.
As a subsidiary embodiment of this sub-embodiment, the higher layer signalling is cell-specific RRC signalling.
As a sub-embodiment, the second signaling is also used to confirm the time domain position and the frequency domain position of the first time-frequency resource.
As a sub-embodiment, the HARQ-ACK information occupies a positive integer number of RUs after repetition coding and orthogonal sequence spreading. The RU occupies one multicarrier symbol in the time domain and one subcarrier interval in the frequency domain.
As an example of this sub-embodiment, the RU is equal to RE (Resource Element) of LTE.
As a sub-embodiment, at least one of { time domain resource, frequency domain resource, code domain resource } occupied by the HARQ-ACK information is determined by dynamic scheduling signaling.
As a sub-embodiment, the HARQ-ACK information is determined by dynamic scheduling signaling.
As an auxiliary embodiment of the sub-embodiment, the Physical layer Channel of the dynamic scheduling signaling is one of { PDCCH (Physical Downlink Control Channel), EPDCCH (enhanced Physical Downlink Control Channel), and sPDCCH (short latency Physical Downlink Control Channel).
As an additional embodiment of this sub-embodiment, the dynamic scheduling signaling is DCI.
As an auxiliary embodiment of the sub-embodiment, the determination of the HARQ-ACK information through the dynamic scheduling signaling means: NDI in the dynamic scheduling signaling is equal to 0, which indicates that the data channel corresponding to the HARQ-ACK information is correctly received; the NDI in the dynamic scheduling signaling is equal to 1, which indicates that the data channel corresponding to the HARQ-ACK information is not correctly received.
Example 3
Embodiment 3 illustrates a schematic diagram of one of the first time windows according to the present invention, as shown in fig. 3. In fig. 3, the first time window includes F time intervals in the time domain, where F is a positive integer greater than 1, and time interval # i shown in the figure is one of the F time windows, where i is a positive integer greater than 0 and not greater than F.
As a sub-embodiment, the duration of the first time window is 1 ms.
As a sub-embodiment, the F time intervals are consecutive in the first time window.
As a sub-embodiment, the F time intervals occupy the first time window in the time domain.
As a sub-embodiment, at least two time intervals of the F time intervals have different durations.
As a sub-embodiment, the duration of the F time intervals in the time domain is the same.
Example 4
Embodiment 4 illustrates a schematic diagram of one of the second sets of time-frequency resources according to the present invention, as shown in fig. 4. In fig. 4, the second time-frequency Resource set includes K time intervals in the time domain, where K is a positive integer greater than 1, and includes E PRB (Physical Resource Block) pairs in the frequency domain.
As a sub-embodiment, the K time intervals are consecutive in the time domain.
As a sub-embodiment, at least two time intervals of the K time intervals are different in duration.
As a sub-embodiment, the duration of the K time intervals in the time domain is the same.
As a sub-embodiment, resource set #1 to resource set # Q shown in the figure are respectively directed to the search spaces of the Q target signaling.
As a sub-embodiment, resource set #1 to resource set # Q shown in the figure are respectively for the Q second time-frequency resources.
Example 5
Embodiment 5 illustrates a schematic diagram of one fourth set of time-frequency resources according to the present invention, as shown in fig. 5. In fig. 5, the fourth set of time-frequency resources includes Q time intervals in the time domain, where Q is a positive integer greater than 1, and occupies G PRB pairs in the frequency domain. And G is a positive integer.
As a sub-embodiment, the G PRB pairs are discrete in the frequency domain.
As a sub-embodiment, at least two of the Q time intervals belong to different time windows.
As a sub-embodiment, the Q time intervals are discontinuous in the time domain.
As a sub-embodiment, at least two of the Q time intervals belong to different LTE subframes.
Example 6
Embodiment 6 is a block diagram illustrating a processing apparatus in a user equipment, as shown in fig. 6. In fig. 6, the ue processing apparatus 100 mainly includes a first receiving module 101, a first processing module 102, a second processing module 103, and a third processing module 104.
The first receiving module 101: means for receiving first signaling in a first time-frequency resource;
the first processing module 102: for detecting L target signaling in the second set of time-frequency resources;
-a second processing module 103: for operating the Q wireless signals;
-a third processing module 104: for performing Q HARQ-ACK messages.
In embodiment 6, the first signaling is used to determine the second set of time-frequency resources. The second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer larger than 1, and L is a positive integer not smaller than K. The first signaling and the target signaling are physical layer signaling, respectively. And the time domain resource occupied by the target signaling belongs to one of the K time intervals. At least two of the K time intervals are orthogonal in the time domain. The operation is receiving and the execution is sending, or the operation is sending and the execution is receiving. The Q target signaling are respectively used to determine Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used to determine the Q configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }. The Q HARQ-ACK information is used to determine whether the Q wireless signals are decoded correctly, respectively.
As a sub-embodiment, the second processing module 103 is configured to receive Q wireless signals, and the third processing module 104 is configured to send Q HARQ-ACK information.
As a sub-embodiment, the second processing module 103 is configured to send Q wireless signals, and the third processing module 104 is configured to receive Q HARQ-ACK information.
As a sub-embodiment, the first receiving module 101 is further configured to receive a second signaling, and the second signaling is used to determine a third set of time-frequency resources. Wherein the second set of time frequency resources is a subset of the third set of time frequency resources.
As a sub-embodiment, the first processing module 102 is further configured to receive Q target signaling in the second set of time-frequency resources. Wherein Q is a positive integer not greater than L, and the Q target signaling are Q of the L target signaling.
As a sub-embodiment, the third processing module 104 is further configured to receive a fourth signaling, and the fourth signaling is used to determine a fourth set of time-frequency resources. Wherein the Q HARQ-ACK information is transmitted in the fourth set of time-frequency resources.
Example 7
Embodiment 7 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 7. In fig. 7, the base station device processing apparatus 200 mainly comprises a first sending module 201, a fourth processing module 202, a fifth processing module 203 and a sixth processing module 204.
The first sending module 201: for transmitting first signaling in a first time-frequency resource;
fourth processing module 202: for configuring L target signalings in the second time-frequency resource set;
a fifth processing module 203: for executing Q wireless signals;
a sixth processing module 204: for operating Q HARQ-ACK information.
In embodiment 7, the first signaling is used to determine the second set of time-frequency resources. The second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer larger than 1, and L is a positive integer not smaller than K. The first signaling and the target signaling are physical layer signaling, respectively. And the time domain resource occupied by the target signaling belongs to one of the K time intervals. At least two of the K time intervals are orthogonal in the time domain. The performing is sending and the operating is receiving, or the performing is receiving and the operating is sending. The Q target signaling are respectively used to determine Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used to determine the Q configuration information. The configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }. The Q HARQ-ACK information is used to determine whether the Q wireless signals are decoded correctly, respectively.
For an embodiment, the fifth processing module 203 is configured to send Q wireless signals, and the sixth processing module 204 is configured to receive Q HARQ-ACK information.
For an embodiment, the fifth processing module 203 is configured to receive Q wireless signals, and the sixth processing module 204 is configured to send Q HARQ-ACK information.
As an embodiment, the first sending module 201 is further configured to send a second signaling, and the second signaling is used to determine a third set of time-frequency resources. Wherein the second set of time frequency resources is a subset of the third set of time frequency resources.
For an embodiment, the fourth processing module 202 is further configured to send Q target signaling in the second set of time-frequency resources. Wherein Q is a positive integer not greater than L, and the Q target signaling are Q of the L target signaling.
For an embodiment, the sixth processing module 204 is further configured to send fourth signaling, and the fourth signaling is used to determine a fourth set of time-frequency resources. Wherein the Q HARQ-ACK information is transmitted in the fourth set of time-frequency resources.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE and the terminal in the present invention include, but are not limited to, a mobile phone, a tablet computer, a notebook computer, a vehicle-mounted Communication device, a wireless sensor, a network card, an internet of things terminal, an RFID terminal, an NB-IOT terminal, an MTC (Machine Type Communication) terminal, an eMTC (enhanced MTC) terminal, a data card, a network card, a vehicle-mounted Communication device, a low-cost mobile phone, a low-cost tablet computer, and other wireless Communication devices. The base station in the present invention includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (12)
1. A method in a user equipment supporting low delay communication, comprising the steps of:
-step a. receiving first signalling in a first time-frequency resource;
-step b. detecting L target signalling in the second set of time frequency resources;
wherein the first signaling is used to determine the second set of time-frequency resources; the second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer greater than 1, and L is a positive integer not less than K; the first signaling and the target signaling are physical layer signaling respectively; the time domain resource occupied by the target signaling belongs to one of the K time intervals; at least two of the K time intervals are orthogonal in the time domain; the step B also comprises the following steps:
-step b1. receiving Q target signalings in the second set of time-frequency resources;
wherein Q is a positive integer not greater than L, the Q target signaling being Q of the L target signaling; the second time frequency resource set comprises L second time frequency resources, and the L second time frequency resources correspond to the L target signaling one by one; q second time frequency resources in the L second time frequency resources are directed to the user equipment, and the Q second time frequency resources correspond to the Q target signaling one by one; the first signaling is used to determine the Q second time-frequency resources from the second set of time-frequency resources, and the aggregation levels adopted by the Q target signaling are linearly related to the aggregation level adopted by the first signaling.
2. The method of claim 1, further comprising the steps of:
-a step c. operating Q radio signals;
wherein the operation is a reception or the operation is a transmission; the Q target signaling is respectively used for determining Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used for determining the Q configuration information; the configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }.
3. The method according to claim 1, wherein said step a further comprises the step a0 of:
-step A0. receiving second signaling, the second signaling being used for determining a third set of time-frequency resources;
wherein the second set of time frequency resources is a subset of the third set of time frequency resources.
4. The method of claim 2, further comprising the steps of:
-step d. performing Q HARQ-ACK information;
wherein the operation is a receive and the execution is a transmit, or the operation is a transmit and the execution is a receive; the Q HARQ-ACK information is used to determine whether the Q wireless signals are decoded correctly, respectively.
5. The method of claim 4, wherein said step D further comprises the steps of:
-step D0. receiving fourth signaling, said fourth signaling being used for determining a fourth set of time-frequency resources;
wherein the Q HARQ-ACK information is transmitted in the fourth set of time-frequency resources.
6. A method in a base station supporting low delay communications, comprising the steps of:
-step a. transmitting first signalling in first time-frequency resources;
-step b. configuring L target signalings in the second set of time-frequency resources;
wherein the first signaling is used to determine the second set of time-frequency resources; the second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer greater than 1, and L is a positive integer not less than K; the first signaling and the target signaling are physical layer signaling respectively; the time domain resource occupied by the target signaling belongs to one of the K time intervals; at least two of the K time intervals are orthogonal in the time domain; the step B also comprises the following steps:
-step b1. sending Q target signalings in the second set of time-frequency resources;
wherein Q is a positive integer not greater than L, the Q target signaling being Q of the L target signaling; the second time frequency resource set comprises L second time frequency resources, and the L second time frequency resources correspond to the L target signaling one by one; q second time frequency resources in the L second time frequency resources are directed to a receiver of the first signaling, and the Q second time frequency resources correspond to the Q target signaling one by one; the first signaling is used to determine the Q second time-frequency resources from the second set of time-frequency resources, and the aggregation levels adopted by the Q target signaling are linearly related to the aggregation level adopted by the first signaling.
7. The method of claim 6, further comprising the steps of:
-step c. performing Q radio signals;
wherein the performing is transmitting or the performing is receiving; the Q target signaling is respectively used for determining Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used for determining the Q configuration information; the configuration information includes at least one of { time domain resource occupied by the corresponding wireless signal, frequency domain resource occupied by the corresponding wireless signal, MCS, NDI, RV, HARQ process number }.
8. The method according to claim 6, wherein said step A further comprises the step A0 of:
-step A0. sending a second signaling, said second signaling being used for determining a third set of time-frequency resources;
wherein the second set of time frequency resources is a subset of the third set of time frequency resources.
9. The method of claim 7, further comprising the steps of:
-step d. operating Q HARQ-ACK information;
wherein the execution is a transmission and the operation is a reception, or the execution is a reception and the operation is a transmission; the Q HARQ-ACK information is used to determine whether the Q wireless signals are decoded correctly, respectively.
10. The method of claim 9, wherein step D further comprises the steps of:
-step D0., sending fourth signaling, said fourth signaling being used for determining a fourth set of time-frequency resources;
wherein the Q HARQ-ACK information is transmitted in the fourth set of time-frequency resources.
11. A user equipment supporting low latency communication, comprising:
-a first receiving module: means for receiving first signaling in a first time-frequency resource;
-a first processing module: for detecting L target signaling in the second set of time-frequency resources;
-a second processing module: for operating the Q wireless signals;
-a third processing module: for performing Q HARQ-ACK messages;
wherein the first signaling is used to determine the second set of time-frequency resources; the second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer greater than 1, and L is a positive integer not less than K; the first signaling and the target signaling are physical layer signaling respectively; the time domain resource occupied by the target signaling belongs to one of the K time intervals; at least two of the K time intervals are orthogonal in the time domain; the operation is receive and the execution is send, or the operation is send and the execution is receive; q target signaling in the L target signaling are respectively used for determining Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used for determining the Q configuration information; the configuration information includes at least one of { time domain resources occupied by the corresponding wireless signals, frequency domain resources occupied by the corresponding wireless signals, MCS, NDI, RV, HARQ process number }; the Q HARQ-ACK information is used to determine whether the Q wireless signals are correctly decoded, respectively; the second time frequency resource set comprises L second time frequency resources, and the L second time frequency resources correspond to the L target signaling one by one; q second time frequency resources in the L second time frequency resources are directed to the user equipment, and the Q second time frequency resources correspond to the Q target signaling one by one; the first signaling is used to determine the Q second time-frequency resources from the second set of time-frequency resources, and the aggregation levels adopted by the Q target signaling are linearly related to the aggregation level adopted by the first signaling.
12. A base station device supporting low-latency communication, comprising:
-a first sending module: for transmitting first signaling in a first time-frequency resource;
-a fourth processing module: for configuring L target signalings in the second time-frequency resource set;
-a fifth processing module: for executing Q wireless signals;
-a sixth processing module: for operating Q HARQ-ACK information;
wherein the first signaling is used to determine the second set of time-frequency resources; the second time frequency resource set comprises K time intervals in a time domain, wherein K is a positive integer greater than 1, and L is a positive integer not less than K; the first signaling and the target signaling are physical layer signaling respectively; the time domain resource occupied by the target signaling belongs to one of the K time intervals; at least two of the K time intervals are orthogonal in the time domain; the execution is send and the operation is receive, or the execution is receive and the operation is send; q target signaling in the L target signaling are respectively used for determining Q configuration information, the Q configuration information and the Q wireless signals are in one-to-one correspondence, and the first signaling is used for determining the Q configuration information; the configuration information includes at least one of { time domain resources occupied by the corresponding wireless signals, frequency domain resources occupied by the corresponding wireless signals, MCS, NDI, RV, HARQ process number }; the Q HARQ-ACK information is used to determine whether the Q wireless signals are correctly decoded, respectively; the second time frequency resource set comprises L second time frequency resources, and the L second time frequency resources correspond to the L target signaling one by one; q second time frequency resources in the L second time frequency resources are directed to a receiver of the first signaling, and the Q second time frequency resources correspond to the Q target signaling one by one; the first signaling is used to determine the Q second time-frequency resources from the second set of time-frequency resources, and the aggregation levels adopted by the Q target signaling are linearly related to the aggregation level adopted by the first signaling.
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| CN110266450B (en) * | 2018-03-12 | 2020-10-02 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN116321512A (en) * | 2018-03-22 | 2023-06-23 | 上海朗帛通信技术有限公司 | User equipment, method and device in base station for wireless communication |
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| CN112738894B (en) | 2018-06-14 | 2023-01-03 | Oppo广东移动通信有限公司 | Information transmission method and device, terminal equipment and network equipment |
| CN111970096B (en) * | 2018-07-12 | 2022-03-29 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
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