CN111294194A

CN111294194A - Method and device in wireless transmission

Info

Publication number: CN111294194A
Application number: CN202010136029.8A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2016-08-16
Filing date: 2016-08-16
Publication date: 2020-06-16
Anticipated expiration: 2036-08-16
Also published as: CN107769825A; CN111294194B; CN107769825B

Abstract

The invention discloses a method and a device in wireless transmission. The UE firstly receives a first signaling in a first time window; operating the first wireless signal within a second time window; receiving second signaling in a third time window; the second wireless signal is then operated within a fourth time window. Wherein the operation is a reception or the operation is a transmission. The first signaling is used to determine the second time window and the third signaling is used to determine the fourth time window. A first bit block is used to generate the first wireless signal. The time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window overlap, and the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. The time frequency resources occupied by the first radio signal and the time frequency resources occupied by the second radio signal are orthogonal.

Description

Method and device in wireless transmission

The present application is a divisional application of the following original applications:

application date of the original application: 2016 (8 months) and 16 days

- -application number of the original application: 201610674943.1

The invention of the original application is named: method and device in wireless transmission

Technical Field

The present invention relates to transmission schemes in wireless communication systems, and more particularly, to methods and apparatus for supporting low-latency communication.

Background

The issue of reducing the delay of the LTE Network is discussed in 3GPP (3rd Generation Partner Project) RAN (radio access Network) #63 times overall meeting. In LTE (Long Term Evolution), a TTI (Transmission Time Interval) or a subframe or a prb (physical Resource block) Pair (Pair) corresponds to one ms (milli-second) in Time. One LTE subframe includes two Time slots (Time slots), a first Slot and a second Slot, respectively. A PDCCH (Physical Downlink Control Channel) occupies first R OFDM (Orthogonal Frequency Division Multiplexing) symbols of a PRB pair, where R is a positive integer less than 5 and is configured by a PCFICH (Physical Control Format Indicator Channel). In order to reduce the transmission delay, the concept of stti (short tti) is proposed, i.e. the duration of a physical channel corresponding to a TB (transport block) is less than 1 ms.

When a short Physical Downlink Shared Channel (sPDSCH) or a short Physical Uplink Shared Channel (sps sch) corresponding to an sTTI is scheduled with a time domain/frequency domain resource overlapping with a PDSCH or a PUSCH corresponding to the TTI, a transmission time of a scheduling signaling of the sPDSCH/sPUSCH may be later than a transmission time of the scheduling signaling of the PDSCH/PUSCH, so that transmission modes of the PDSCH/PUSCH, such as mcs (modulation and Coding status) and a precoding/beamforming matrix, cannot be timely adjusted along with the scheduling of the sPDSCH/sps, resulting in a decrease in communication quality on the PDSCH/PUSCH. How to guarantee the communication quality on the PDSCH/PUSCH in a communication system supporting sTTI is a problem to be solved.

Disclosure of Invention

The inventor discovers through research that when the sPDSCH/sPUSCH is allocated with time domain/frequency domain resources overlapping with the PDSCH/PUSCH, transmission modes adopted by the sPDSCH/sPUSCH and the PDSCH/PUSCH, such as MCS and precoding/beamforming matrix, need to be jointly designed so as to optimize the performance on the sPDSCH/sPUSCH and the PDSCH/PUSCH simultaneously. Since the scheduling time of the sPDSCH/sUSCH may be later than the scheduling time of the PDSCH/PUSCH, the result of the joint optimization cannot be included in the scheduling signaling of the PDSCH/PUSCH for transmission.

In view of the above problems, the present invention discloses a solution. It should be noted that, without conflict, the embodiments and features in the embodiments in the UE of the present application may be applied to the base station, and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

The invention discloses a method used in UE of low-delay communication, which comprises the following steps:

-step a. receiving first signalling within a first time window and second signalling within a third time window;

-step b. operate the first radio signal within a second time window and the second radio signal within a fourth time window.

Wherein the operation is a reception or the operation is a transmission. The first signaling is used to determine the second time window, and the second signaling is used to determine the fourth time window. A first bit block is used to generate the first wireless signal. The time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window overlap, and the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. The time frequency resources occupied by the first radio signal and the time frequency resources occupied by the second radio signal are orthogonal.

As an embodiment, the time domain resource occupied by the first wireless signal is a part of the second time window.

As one embodiment, the first wireless signal occupies a portion in the time domain that is within the second time window and outside of the fourth time window.

As an embodiment, that the time-frequency resource occupied by the first wireless signal and the time-frequency resource occupied by the second wireless signal are orthogonal means that: there is not one RU occupied by both the first wireless signal and the second wireless signal. The RU occupies one subcarrier in the frequency domain and occupies the duration of one OFDM symbol in the time domain.

As an embodiment, the time domain resource occupied by the first signaling implicitly indicates the second time window.

As an embodiment, the first signaling explicitly indicates the second time window.

As an embodiment, the time domain resource occupied by the second signaling implicitly indicates the fourth time window.

As an embodiment, the second signaling explicitly indicates the fourth time window.

As an embodiment, the first wireless signal and the second wireless signal are transmitted on the same carrier.

As an embodiment, the frequency domain resources occupied by the first wireless signal and the frequency domain resources occupied by the second wireless signal Overlap (Overlap).

As an embodiment, the fourth time window is located within the second time window, and the length of the time domain resource occupied by the fourth time window is smaller than the length of the time domain resource occupied by the second time window.

As an embodiment, the fourth time window and the second time window completely coincide.

As an embodiment, the fourth time window and the second time window partially coincide.

As one embodiment, the first bit block includes a positive integer number of bits.

As an embodiment, the first bit Block includes a positive integer number of TBs (Transport blocks).

As an embodiment, the first wireless signal is a target wireless signal or the first wireless signal is a part of a target wireless signal. The target wireless signal is an output of the first bit block after Channel Coding (Channel Coding), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation) in sequence.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling is transmitted on a downlink physical layer control channel, and the downlink physical layer control channel can only be used for carrying downlink physical layer control information. As a sub-embodiment, the Downlink Physical layer Control Channel is a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first signaling is DCI (Downlink Control Information).

As an embodiment, the first signaling corresponds to a downlink Grant (Grant) DCI, and the operation is receiving.

As an embodiment, the first signaling corresponds to a DCI of an uplink Grant (Grant), and the operation is transmitting.

As an embodiment, the second signaling is physical layer signaling.

As an embodiment, the second signaling is transmitted on a downlink physical layer control channel, and the downlink physical layer control channel can only be used for carrying downlink physical layer control information. As a sub-embodiment, the downlink physical layer control channel is a short PDCCH (short PDCCH).

As an embodiment, the second signaling is fast DCI.

As an embodiment, the second signaling corresponds to downlink scheduling, and the operation is receiving.

As an embodiment, the second signaling corresponds to uplink scheduling, and the operation is sending.

For one embodiment, the first wireless signal includes physical layer data.

As an embodiment, the physical layer channel corresponding to the first wireless signal includes a downlink physical layer data channel (i.e. a downlink channel capable of carrying physical layer data). As a sub-embodiment, the Downlink Physical layer data Channel is a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the transmission channel corresponding to the first wireless signal is a DL-SCH (Downlink shared channel).

As an embodiment, the physical layer channel corresponding to the first wireless signal includes an uplink physical layer data channel (i.e. an uplink channel capable of carrying physical layer data). As a sub-embodiment, the Uplink Physical layer data Channel is a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the transmission channel corresponding to the first wireless signal is an UL-SCH (Uplink shared channel).

For one embodiment, the second wireless signal includes physical layer data.

As an embodiment, the physical layer channel corresponding to the second wireless signal includes a downlink physical layer data channel (i.e. a downlink channel capable of carrying physical layer data). As a sub-embodiment, the downlink physical layer data channel is sPDSCH (short PDSCH).

In one embodiment, the transmission channel corresponding to the second wireless signal is a DL-SCH.

As an embodiment, the physical layer channel corresponding to the second wireless signal includes an uplink physical layer data channel (i.e. an uplink channel capable of carrying physical layer data). As a sub-embodiment, the uplink physical layer data channel is a short PUSCH (short PUSCH).

In one embodiment, the transmission channel corresponding to the second wireless signal is an UL-SCH.

As an embodiment, the position in the time domain of the third time window is after the first time window.

For one embodiment, the third time window is located within the second time window. As a sub-embodiment, the length of the time domain resource occupied by the third time window is smaller than the length of the time domain resource occupied by the second time window.

As an embodiment, the third time window is located before the second time window.

As an embodiment, the length of the second time window in the time domain is 1 millisecond.

As an embodiment, the length of the second time window in the time domain is less than 1 millisecond.

As an embodiment, the length of the fourth time window in the time domain is less than 1 millisecond.

As one embodiment, the first signaling includes scheduling information of the first wireless signal. The scheduling information of the first radio signal includes at least one of { frequency domain resources occupied by the first radio signal, MCS (Modulation and Coding Status) of the first radio signal, RV (redundancy version) of the first radio signal, and HARQ Process Number (Process Number) of the first radio signal.

As one embodiment, the second signaling includes scheduling information of the second wireless signal. The scheduling information of the second radio signal includes at least one of { a frequency domain resource occupied by the second radio signal, an MCS (Modulation and Coding Status) of the second radio signal, an RV (redundancy version) of the second radio signal, and an HARQ Process Number (Process Number) } of the second radio signal.

As one embodiment, the second signaling explicitly indicates whether the second wireless signal was generated by the first bit block. As a sub-embodiment, one bit in the second signaling is used to indicate whether the second wireless signal is generated by the first bit block.

Specifically, according to an aspect of the present invention, it is characterized in that the frequency domain resources occupied by the first radio signal and the frequency domain resources occupied by the second radio signal overlap. The RU occupied by the first wireless signal is an RU that is within the first set of RUs and outside the second set of RUs. The first set of RUs are RUs scheduled for the first signaling assuming the second signaling is absent, the second set of RUs being RUs occupied by the second wireless signal. The RU occupies one subcarrier in the frequency domain and occupies the duration of one OFDM symbol in the time domain.

As one embodiment, the operation is receiving.

As one embodiment, the operation is a transmit.

Specifically, according to an aspect of the present invention, the time domain resource occupied by the first wireless signal and the fourth time window are orthogonal.

As an embodiment, the operation is transmitting, and the first wireless signal occupies a portion in the time domain that is within the second time window and before the fourth time window. As a sub-embodiment of this embodiment, a time domain resource occupied by the second wireless signal overlaps a time domain resource available for a first DMRS (DeModulation reference signal) in the second time window, where the first DMRS is a DMRS scheduled by the first signaling on the assumption that the second signaling does not exist.

As an embodiment, the operation is transmitting, and the first wireless signal occupies a portion in the time domain that is within the second time window and outside the fourth time window. As a sub-embodiment of this embodiment, the time domain resource occupied by the second wireless signal and the time domain resource within the second time window that can be used for the first DMRS are orthogonal, and the first DMRS is the DMRS scheduled by the first signaling assuming that the second signaling does not exist.

As an embodiment, the operation is receiving, the first wireless signal occupying a portion in the time domain that is within the second time window and outside the fourth time window. As a sub-embodiment of the present embodiment, an antenna port for transmitting the first wireless signal is common to cells. As a sub-embodiment of the present embodiment, the first wireless Signal includes a URS (UE specific Reference Signal). The time frequency resources occupied by the second radio signal and the time frequency resources available for URS within the second time window are orthogonal.

As an embodiment, the operation is receiving, the first wireless signal occupying a portion in the time domain that is within the second time window and before the fourth time window. As a sub-embodiment of the present embodiment, the first wireless Signal includes a URS (UE specific Reference Signal). And the time frequency resource occupied by the second wireless signal is overlapped with the time frequency resource which can be used for URS in the second time window.

In particular, according to one aspect of the invention, it is characterized in that said second signaling is used to determine that said first block of bits is used for generating said second radio signal, at least the former of { said first block of bits, second block of bits } being used for generating said second radio signal; or the second signaling is used to determine that the first bit block is not used to generate the second wireless signal, the latter of { the first bit block, second bit block } being used to generate the second wireless signal. And the transmission time corresponding to the second bit block is less than the transmission time corresponding to the first bit block.

As an embodiment, the transmission time corresponding to the first bit block is 1 millisecond.

As an embodiment, the transmission Time is TTI (Transport Time Interval) or sTTI (short TTI).

As an embodiment, during the transmission time corresponding to the first bit block, the transmission channel corresponding to the first bit block is used for transmitting the first bit block and is not used for transmitting the transmission blocks except the first bit block. And in the transmission time corresponding to the second bit block, the transmission channel corresponding to the second bit block is used for transmitting the second bit block and is not used for transmitting the transmission blocks except the second bit block.

As an embodiment, the transmission time is a time required for transmission from a MAC (Medium Access Control) layer to a physical layer.

Specifically, according to an aspect of the present invention, the step B further includes the steps of:

-step B0. combining the first wireless signal and the second sub-wireless signal into a target wireless signal, recovering the first bit block from the target wireless signal, the operation being reception; or generating a target wireless signal according to the first bit block, and splitting the target wireless signal into two parts, namely the first wireless signal and a second sub-wireless signal, wherein the operation is transmission.

Wherein the first block of bits is used to generate the second wireless signal. The second sub wireless signal is a portion of the second wireless signal; or the second sub wireless signal is the second wireless signal.

As an embodiment, the target wireless signal is an output of the first bit block after Channel Coding (Channel Coding), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation) in sequence.

As an embodiment, the second wireless signal is composed of the second sub wireless signal and a third sub wireless signal, and the second bit block is used to generate the third sub wireless signal.

Specifically, according to an aspect of the present invention, the MCS of the second sub radio signal is the same as the MCS of the first radio signal, and the number of RUs occupied by the second sub radio signal is equal to the difference of the first parameter minus the second parameter. The first parameter is a number of RUs in the first set of RUs, and the second parameter is a number of RUs occupied by the first wireless signal. The first set of RUs are RUs scheduled for the first signaling assuming the second signaling is not present.

As one embodiment, the first signaling indicates an MCS of the first wireless signal and an MCS of the second sub wireless signal, and the second signaling indicates an MCS of the third sub wireless signal.

As an embodiment, if the number of RUs scheduled by the second signaling is greater than the difference of the first parameter minus the second parameter, the second sub radio signal is part of the second radio signal; otherwise the second sub-wireless signal is the second wireless signal.

Specifically, according to an aspect of the present invention, the step a further includes the steps of:

step A0. receives the third signaling.

Wherein the third signaling is used to determine at least one of { first resource pool, second resource pool }. The first resource pool includes a plurality of first time intervals, and the third time window is one of the first time intervals in the first resource pool. The second resource pool includes a plurality of second time intervals, and the fourth time window is one of the second time intervals in the second resource pool.

As an embodiment, the third signaling is higher layer signaling.

As an embodiment, the third signaling is RRC (Radio Resource Control) signaling.

As an embodiment, the third signaling is cell-common.

As an embodiment, the first time interval includes Q1 time cells, the time cells being the duration of one OFDM symbol, the Q1 being a positive integer.

As an embodiment, the second time interval includes Q2 time cells, the time cells being the duration of one OFDM symbol, the Q2 being a positive integer.

As an embodiment, the second time interval corresponds to one sTTI.

In particular, according to one aspect of the invention, it is characterized in that the target signalling lacks the first domain compared to said second signalling. The first field in the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. And the transmission time corresponding to the wireless signal scheduled by the target signaling is the same as the transmission time corresponding to the wireless signal scheduled by the second signaling. The receiver of the target signaling is configured with only one kind of the transmission time.

The invention discloses a method used in a base station of low-delay communication, which comprises the following steps:

-step a. transmitting the first signalling within a first time window and the second signalling within a third time window;

-step b. the first radio signal is performed within a second time window and the second radio signal is performed within a fourth time window.

Wherein the performing is transmitting or the performing is receiving. The first signaling is used to determine the second time window, and the second signaling is used to determine the fourth time window. A first bit block is used to generate the first wireless signal. The time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window overlap, and the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. The time frequency resources occupied by the first radio signal and the time frequency resources occupied by the second radio signal are orthogonal.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling is DCI (Downlink Control Information).

As an embodiment, the first signaling and the second signaling respectively correspond to a downlink Grant (Grant) DCI, and the performing is transmitting.

As an embodiment, the first signaling and the second signaling correspond to a DCI of an uplink Grant (Grant), respectively, and the performing is receiving.

As an embodiment, the second signaling is physical layer signaling.

As an embodiment, the second signaling is fast DCI.

For one embodiment, the first wireless signal includes physical layer data.

For one embodiment, the second wireless signal includes physical layer data.

As one embodiment, the performing is sending.

As one embodiment, the performing is receiving.

As one embodiment, the performing is receiving, the first wireless signal occupying a portion in the time domain that is within the second time window and before the fourth time window. As a sub-embodiment of this embodiment, a time domain resource occupied by the second wireless signal overlaps a time domain resource available for a first DMRS (DeModulation reference signal) in the second time window, where the first DMRS is a DMRS scheduled by the first signaling on the assumption that the second signaling does not exist.

As an embodiment, the performing is receiving, the first wireless signal occupying a portion in the time domain that is within the second time window and outside the fourth time window. As a sub-embodiment of this embodiment, the time domain resource occupied by the second wireless signal and the time domain resource within the second time window that can be used for the first DMRS are orthogonal, and the first DMRS is the DMRS scheduled by the first signaling assuming that the second signaling does not exist.

As an embodiment, the performing is transmitting, the first wireless signal occupies a portion in the time domain that is within the second time window and outside the fourth time window. As a sub-embodiment of the present embodiment, an antenna port for transmitting the first wireless signal is common to cells. As a sub-embodiment of the present embodiment, the first wireless Signal includes a URS (UE specific Reference Signal). The time frequency resources occupied by the second radio signal and the time frequency resources available for URS within the second time window are orthogonal.

As an embodiment, the performing is transmitting, the first wireless signal occupies a portion in the time domain that is within the second time window and before the fourth time window. As a sub-embodiment of the present embodiment, the first wireless Signal includes a URS (UE specific Reference Signal). And the time frequency resource occupied by the second wireless signal is overlapped with the time frequency resource which can be used for URS in the second time window.

-a step B0. of generating a target wireless signal from the first bit block, splitting the target wireless signal into two parts, the execution being a transmission, of the first wireless signal and a second sub-wireless signal; or combining the first wireless signal and the second sub wireless signal into a target wireless signal, and recovering the first bit block according to the target wireless signal, wherein the execution is receiving.

step A0. sends the third signaling.

As an embodiment, the third signaling is higher layer signaling.

As an embodiment, the third signaling is cell-common.

As an embodiment, the second time interval corresponds to one sTTI.

The invention discloses a user equipment used for low-delay communication, which comprises the following modules:

a first receiving module: receiving a first signaling in a first time window and a second signaling in a third time window;

a first processing module: operating the first wireless signal within a second time window and operating the second wireless signal within a fourth time window;

Specifically, the ue is characterized in that the frequency domain resource occupied by the first radio signal and the frequency domain resource occupied by the second radio signal are overlapped. The RU occupied by the first wireless signal is an RU that is within the first set of RUs and outside the second set of RUs. The first set of RUs are RUs scheduled for the first signaling assuming the second signaling is absent, the second set of RUs being RUs occupied by the second wireless signal. The RU occupies one subcarrier in the frequency domain and occupies the duration of one OFDM symbol in the time domain.

As one embodiment, the operation is receiving.

Specifically, the ue is characterized in that the time domain resource occupied by the first radio signal and the fourth time window are orthogonal.

As an embodiment, the operation is transmitting, and the first wireless signal occupies a portion in the time domain that is within the second time window and before the fourth time window. As a sub-embodiment of this embodiment, a time domain resource occupied by the second wireless signal overlaps with a time domain resource within the second time window that can be used for a first DMRS, where the first DMRS is a DMRS scheduled by the first signaling assuming that the second signaling does not exist.

Specifically, the ue is characterized in that the second signaling is used to determine that the first bit block is used for generating the second radio signal, and at least the former of { the first bit block and the second bit block } is used for generating the second radio signal; or the second signaling is used to determine that the first bit block is not used to generate the second wireless signal, the latter of { the first bit block, second bit block } being used to generate the second wireless signal. And the transmission time corresponding to the second bit block is less than the transmission time corresponding to the first bit block.

Specifically, the ue is characterized in that the first processing module is further configured to combine the first radio signal and the second sub radio signal into a target radio signal, and recover the first bit block according to the target radio signal, where the operation is receiving; or generating a target wireless signal according to the first bit block, and splitting the target wireless signal into two parts, namely the first wireless signal and a second sub-wireless signal, wherein the operation is transmission.

Specifically, the ue is characterized in that the MCS of the second sub-radio signal is the same as the MCS of the first radio signal, and the number of RUs occupied by the second sub-radio signal is equal to a difference obtained by subtracting the second parameter from the first parameter. The first parameter is a number of RUs in the first set of RUs, and the second parameter is a number of RUs occupied by the first wireless signal. The first set of RUs are RUs scheduled for the first signaling assuming the second signaling is not present.

Specifically, the user equipment is characterized in that the first receiving module is further configured to receive a third signaling.

Specifically, the ue is characterized in that the target signaling lacks the first domain compared to the second signaling. The first field in the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. And the transmission time corresponding to the wireless signal scheduled by the target signaling is the same as the transmission time corresponding to the wireless signal scheduled by the second signaling. The receiver of the target signaling is configured with only one kind of the transmission time.

The invention discloses a base station device used for low-delay communication, which comprises the following modules:

a first sending module: transmitting the first signaling in a first time window and the second signaling in a third time window;

a second processing module: performing the first wireless signal within a second time window and performing the second wireless signal within a fourth time window;

Specifically, the base station device is characterized in that the frequency domain resource occupied by the first wireless signal and the frequency domain resource occupied by the second wireless signal are overlapped. The RU occupied by the first wireless signal is an RU that is within the first set of RUs and outside the second set of RUs. The first set of RUs are RUs scheduled for the first signaling assuming the second signaling is absent, the second set of RUs being RUs occupied by the second wireless signal. The RU occupies one subcarrier in the frequency domain and occupies the duration of one OFDM symbol in the time domain.

Specifically, the base station device is characterized in that the time domain resource occupied by the first radio signal and the fourth time window are orthogonal.

Specifically, the base station apparatus is characterized in that the second signaling is used to determine that the first bit block is used to generate the second radio signal, and at least the former of { the first bit block, the second bit block } is used to generate the second radio signal; or the second signaling is used to determine that the first bit block is not used to generate the second wireless signal, the latter of { the first bit block, second bit block } being used to generate the second wireless signal. And the transmission time corresponding to the second bit block is less than the transmission time corresponding to the first bit block.

Specifically, the base station device is further configured to generate a target wireless signal according to the first bit block, split the target wireless signal into two parts, namely, a first wireless signal and a second sub-wireless signal, where the performing is sending; or combining the first wireless signal and the second sub wireless signal into a target wireless signal, and recovering the first bit block according to the target wireless signal, wherein the execution is receiving.

Specifically, the base station device is characterized in that the MCS of the second sub radio signal is the same as the MCS of the first radio signal, and the number of RUs occupied by the second sub radio signal is equal to a difference obtained by subtracting the second parameter from the first parameter. The first parameter is a number of RUs in the first set of RUs, and the second parameter is a number of RUs occupied by the first wireless signal. The first set of RUs are RUs scheduled for the first signaling assuming the second signaling is not present.

Specifically, the base station device is characterized in that the first sending module is further configured to send a third signaling.

Specifically, the base station device is characterized in that the target signaling lacks the first domain compared with the second signaling. The first field in the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. And the transmission time corresponding to the wireless signal scheduled by the target signaling is the same as the transmission time corresponding to the wireless signal scheduled by the second signaling. The receiver of the target signaling is configured with only one kind of the transmission time.

Compared with the traditional scheme, the invention has the following advantages:

when the sPDSCH/sPUSCH is allocated with time domain/frequency domain resources overlapping with the PDSCH/PUSCH, joint optimization of transmission modes of data on the sPDSCH/sPUSCH and PDSCH/PUSCH is supported, such as precoding/beamforming matrix and MCS;

when data on PDSCH is affected by sPDSCH, the receiving UE of data on PDSCH does not need to give up the data on PDSCH that has been received;

when data on PUSCH is affected by the sPUSCH, the base station does not need to give up data on PUSCH that has been received;

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 wireless transmission according to an embodiment of the invention;

FIG. 2 shows a flow diagram of wireless transmission according to another embodiment of the invention;

FIG. 3 shows a schematic diagram of a first time window, a second time window, a third time window and a fourth time window according to an embodiment of the invention;

FIG. 4 shows a schematic diagram of a first time window, a second time window, a third time window and a fourth time window according to another embodiment of the invention;

fig. 5 shows a schematic diagram of resource mapping of a first radio signal and a second radio signal in the time-frequency domain according to an embodiment of the invention;

fig. 6 shows a schematic diagram of resource mapping of a first radio signal and a second radio signal in the time-frequency domain according to another embodiment of the present invention;

fig. 7 shows a schematic diagram of resource mapping of a first radio signal and a second radio signal in the time-frequency domain according to another embodiment of the present invention;

fig. 8 shows a schematic diagram of a relationship between { first wireless signal, second wireless signal } and { first bit block, second bit block } according to an embodiment of the invention;

fig. 9 is a diagram showing a relationship between { first wireless signal, second wireless signal } and { first bit block, second bit block } according to another embodiment of the present invention;

fig. 10 shows a block diagram of a processing device used in a UE according to an embodiment of the present invention;

fig. 11 shows a block diagram of a processing device used in a base station according to an embodiment of the present invention.

Example 1

Embodiment 1 illustrates a flow chart of wireless transmission, as shown in fig. 1. In fig. 1, base station N1 is the serving cell maintenance base station for UE U2. In fig. 1, the step in block F1 is optional.

For N1, third signaling is sent in step S101; transmitting the first signaling in the first time window and the second signaling in the third time window in step S11; in step S12, the first wireless signal is transmitted in the second time window, and the second wireless signal is transmitted in the fourth time window.

For U2, a third signaling is received in step S201; receiving the first signaling in the first time window and the second signaling in the third time window in step S21; in step S22, the first wireless signal is received in the second time window, and the second wireless signal is received in the fourth time window.

In embodiment 1, the first signaling is used to determine the second time window, and the second signaling is used to determine the fourth time window. A first bit block is used to generate the first wireless signal. The time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window overlap, and the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. The time frequency resources occupied by the first radio signal and the time frequency resources occupied by the second radio signal are orthogonal. The third signaling is used to determine at least one of { first resource pool, second resource pool }. The first resource pool includes a plurality of first time intervals, and the third time window is one of the first time intervals in the first resource pool. The second resource pool includes a plurality of second time intervals, and the fourth time window is one of the second time intervals in the second resource pool. The target signaling lacks the first domain compared to said second signaling. The first field in the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. And the transmission time corresponding to the wireless signal scheduled by the target signaling is the same as the transmission time corresponding to the wireless signal scheduled by the second signaling. The receiver of the target signaling is configured with only one kind of the transmission time.

As sub embodiment 1 of embodiment 1, the second signaling is used to determine that the first bit block is used to generate the second radio signal, and at least the former of { the first bit block, the second bit block } is used to generate the second radio signal. The base station generates a target wireless signal according to the first bit block in step S12, and splits the target wireless signal into two parts, namely, a first wireless signal and a second sub-wireless signal; the UE combines the first wireless signal and the second sub-wireless signal into a target wireless signal in step S22, and recovers the first bit block from the target wireless signal. Wherein the second sub-wireless signal is a portion of the second wireless signal; or the second sub wireless signal is the second wireless signal.

As a sub-embodiment of sub-embodiment 1 of embodiment 1, the second radio signal is composed of the second sub radio signal and a third sub radio signal, and the second bit block is used to generate the third sub radio signal.

As sub-embodiment 2 of embodiment 1, the second signaling is used to determine that the first block of bits is not used to generate the second wireless signal, and the second block of bits is used to generate the second wireless signal.

As a sub-embodiment 3 of embodiment 1, the time domain resource occupied by the first signaling implicitly indicates the second time window.

As a sub-embodiment 4 of embodiment 1, the first signaling explicitly indicates the second time window.

As a sub-embodiment 5 of embodiment 1, the time domain resource occupied by the second signaling implicitly indicates the fourth time window.

As a sub-embodiment 6 of embodiment 1, the second signaling explicitly indicates the fourth time window.

As sub-embodiment 7 of embodiment 1, the first wireless signal and the second wireless signal are transmitted on the same carrier.

As sub-embodiment 8 of embodiment 1, the first block of bits comprises a positive integer number of bits.

As a sub-embodiment 9 of embodiment 1, the first bit Block comprises a positive integer number of TBs (Transport blocks).

As sub-embodiment 10 of embodiment 1, the first wireless signal is a target wireless signal or the first wireless signal is a portion of a target wireless signal. The target wireless signal is an output of the first bit block after Channel Coding (Channel Coding), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation) in sequence.

As sub-embodiment 11 of embodiment 1, the first signaling includes scheduling information of the first wireless signal. The scheduling information of the first radio signal includes at least one of { frequency domain resources occupied by the first radio signal, MCS (Modulation and Coding Status) of the first radio signal, RV (Redundancy Version) of the first radio signal, and HARQ Process Number (Process Number) of the first radio signal.

As sub-embodiment 12 of embodiment 1, the second signaling includes scheduling information of the second wireless signal. The scheduling information of the second radio signal includes at least one of { frequency domain resources occupied by the second radio signal, MCS (Modulation and Coding Status) of the second radio signal, RV (Redundancy Version) of the second radio signal, and HARQ Process Number (Process Number) } of the second radio signal.

As a sub-embodiment 13 of embodiment 1, the second signaling explicitly indicates whether the second wireless signal was generated by the first bit block. As a sub-embodiment, one bit in the second signaling is used to indicate whether the second wireless signal is generated by the first bit block.

As a sub-embodiment 14 of embodiment 1, the third signaling is higher layer signaling.

As sub-embodiment 15 of embodiment 1, the first time interval includes Q1 time units, the time units being the duration of one OFDM symbol, the Q1 being a positive integer.

As sub-embodiment 16 of embodiment 1, the second time interval includes Q2 time units, the time units being the duration of one OFDM symbol, the Q2 being a positive integer.

As a sub-embodiment 17 of embodiment 1, the second time interval corresponds to one sTTI.

Example 2

Embodiment 2 illustrates a flow chart of wireless transmission, as shown in fig. 2. In fig. 2, base station N3 is the serving cell maintenance base station for UE U4. In fig. 2, the step in block F2 is optional.

For N3, third signaling is sent in step S301; transmitting the first signaling in the first time window and the second signaling in the third time window in step S31; in step S32, the first wireless signal is received in the second time window, and the second wireless signal is received in the fourth time window.

For U4, a third signaling is received in step S401; receiving the first signaling in the first time window and the second signaling in the third time window in step S41; in step S42, the first wireless signal is transmitted in the second time window, and the second wireless signal is transmitted in the fourth time window.

In embodiment 2, the first signaling is used to determine the second time window, and the second signaling is used to determine the fourth time window. A first bit block is used to generate the first wireless signal. The time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window overlap, and the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. The time frequency resources occupied by the first radio signal and the time frequency resources occupied by the second radio signal are orthogonal. The third signaling is used to determine at least one of { first resource pool, second resource pool }. The first resource pool includes a plurality of first time intervals, and the third time window is one of the first time intervals in the first resource pool. The second resource pool includes a plurality of second time intervals, and the fourth time window is one of the second time intervals in the second resource pool. The target signaling lacks the first domain compared to said second signaling. The first field in the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. And the transmission time corresponding to the wireless signal scheduled by the target signaling is the same as the transmission time corresponding to the wireless signal scheduled by the second signaling. The receiver of the target signaling is configured with only one kind of the transmission time.

As sub embodiment 1 of embodiment 2, the second signaling is used to determine that the first bit block is used to generate the second radio signal, and at least the former of { the first bit block, the second bit block } is used to generate the second radio signal. The UE generates a target wireless signal according to the first bit block in step S42, and splits the target wireless signal into two parts, namely, a first wireless signal and a second sub-wireless signal; the base station combines the first wireless signal and the second sub wireless signal into a target wireless signal in step S32, and recovers the first bit block from the target wireless signal. Wherein the second sub-wireless signal is a portion of the second wireless signal; or the second sub wireless signal is the second wireless signal.

As a sub-embodiment of sub-embodiment 1 of embodiment 2, the second radio signal is composed of the second sub-radio signal and a third sub-radio signal, and the second bit block is used to generate the third sub-radio signal.

As a sub-embodiment 2 of embodiment 2, the second signaling is used to determine that the first block of bits is not used to generate the second wireless signal, and the second block of bits is used to generate the second wireless signal.

Example 3

Example 3 illustrates a schematic diagram of a first time window, a second time window, a third time window and a fourth time window, as shown in fig. 3.

In embodiment 3, the positions of the first time window and the second time window in the time domain are consecutive, the second time window being subsequent to the first time window. The third time window is subsequent to the first time window, the third time window is within the second time window, and the length of time domain resources occupied by the third time window is less than the length of time domain resources occupied by the second time window. The time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window are overlapped.

As sub-embodiment 1 of embodiment 3, the fourth time window is located within the second time window, and a length of time domain resources occupied by the fourth time window is smaller than a length of time domain resources occupied by the second time window.

As sub-embodiment 2 of embodiment 3, the fourth time window and the second time window completely coincide.

As sub-embodiment 3 of embodiment 3, the fourth time window and the second time window partially coincide.

As a sub-embodiment 4 of embodiment 3, the length of the second time window in the time domain is 1 millisecond.

As a sub-embodiment 5 of embodiment 3, the length of the second time window in the time domain is less than 1 millisecond.

As a sub-embodiment 6 of embodiment 3, the length of the fourth time window in the time domain is less than 1 millisecond.

Example 4

Example 4 illustrates a schematic diagram of a first time window, a second time window, a third time window and a fourth time window, as shown in fig. 4.

In embodiment 4, the first time window and the second time window are not contiguous in position in the time domain, the second time window being subsequent to the first time window. The third time window is subsequent to the first time window. The time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window are overlapped.

As sub-embodiment 1 of embodiment 4, the fourth time window is located within the second time window, and a length of time domain resources occupied by the fourth time window is smaller than a length of time domain resources occupied by the second time window.

As sub-embodiment 2 of embodiment 4, the fourth time window and the second time window completely coincide.

As sub-embodiment 3 of embodiment 4, the fourth time window and the second time window partially coincide.

As a sub-embodiment 4 of embodiment 4, the third time window precedes the second time window.

As a sub-embodiment 5 of embodiment 4, the third time window is within the second time window, and the length of the time domain resources occupied by the third time window is less than the length of the time domain resources occupied by the second time window.

Example 5

Embodiment 5 illustrates a schematic diagram of resource mapping of a first wireless signal and a second wireless signal on a time-frequency domain, as shown in fig. 5.

In embodiment 5, the frequency domain resources occupied by the first radio signal and the frequency domain resources occupied by the second radio signal overlap. The RU occupied by the first wireless signal is an RU that is within the first set of RUs and outside the second set of RUs. The first set of RUs are RUs scheduled for the first signaling assuming the second signaling is absent, the second set of RUs being RUs occupied by the second wireless signal. The RU occupies one subcarrier in the frequency domain and occupies the duration of one OFDM symbol in the time domain. The first set of RUs is represented by the boxes bordered by black bold lines in fig. 5, the RUs occupied by the first wireless signal are represented by the boxes filled with diagonal lines in fig. 5, and the second set of RUs is represented by the boxes filled with reversed diagonal lines in fig. 5.

As sub-embodiment 1 of embodiment 5, the first radio signal and the second radio signal are transmitted by a base station to a UE.

Example 6

Embodiment 6 illustrates a schematic diagram of resource mapping of a first wireless signal and a second wireless signal in a time-frequency domain, as shown in fig. 6. In fig. 6, the squares filled with oblique lines identify time-frequency resources occupied by the first wireless signal, the squares filled with reverse oblique lines identify the second wireless signal, and the squares with bold frames are the time-frequency resources occupied by the DMRS scheduled by the first signaling assuming that the second signaling does not exist.

In embodiment 6, the time domain resources occupied by the first wireless signal and the fourth time window are orthogonal. The first wireless signal occupies a portion in the time domain that is within a second time window and before the fourth time window. And time domain resources occupied by the second wireless signal are overlapped with time domain resources which can be used for a first DMRS in the second time window, and the first DMRS is the DMRS scheduled by the first signaling under the condition that the second signaling does not exist.

As sub-embodiment 1 of embodiment 6, the first radio signal and the second radio signal are transmitted by a UE to a base station.

Example 7

Embodiment 7 illustrates a schematic diagram of resource mapping of a first wireless signal and a second wireless signal in a time-frequency domain, as shown in fig. 7.

In embodiment 7, the time domain resource occupied by the first wireless signal and the fourth time window are orthogonal. The first wireless signal occupies a portion in the time domain that is within a second time window and outside of the fourth time window. And the time domain resources occupied by the second wireless signal and the time domain resources which can be used for the first DMRS in the second time window are orthogonal, and the first DMRS is the DMRS scheduled by the first signaling under the condition that the second signaling does not exist. The time-frequency resource occupied by the first wireless signal is represented by a box filled with oblique lines in fig. 7, the time-frequency resource occupied by the second wireless signal is represented by a box filled with reverse oblique lines in fig. 7, and the first DMRS is represented by a box surrounded by a black bold line in fig. 7.

As sub-embodiment 1 of embodiment 7, the first radio signal and the second radio signal are transmitted by a UE to a base station.

Example 8

Embodiment 8 illustrates a schematic diagram of a relationship between { first wireless signal, second wireless signal } and { first bit block, second bit block } as shown in fig. 8.

In embodiment 8, second signaling is used to determine that at least the former of the first bit block used to generate the second radio signal, and { the first bit block, the second bit block } is used to generate the second radio signal. The sending end of the first wireless signal and the sending end of the second wireless signal generate a target wireless signal according to the first bit block, and the target wireless signal is split into two parts, namely a first wireless signal and a second sub wireless signal, wherein the second sub wireless signal is a part of the second wireless signal; or the second sub wireless signal is the second wireless signal. And the transmission time corresponding to the second bit block is less than the transmission time corresponding to the first bit block.

As sub-embodiment 1 of embodiment 8, the target wireless signal is an output of the first bit block after sequentially performing Channel Coding (Channel Coding), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation).

As sub-embodiment 2 of embodiment 8, the second radio signal is composed of the second sub radio signal and a third sub radio signal, and the second bit block is used to generate the third sub radio signal.

As a sub-embodiment of sub-embodiment 2 of embodiment 8, the third sub-radio signal is an output of the second bit block after sequentially performing channel coding, modulation mapper, layer mapper, precoding, resource element mapper, and OFDM signal generation.

As sub-embodiment 3 of embodiment 8, the MCS of the second sub-radio signal is the same as the MCS of the first radio signal, and the number of RUs occupied by the second sub-radio signal is equal to the difference of the first parameter minus the second parameter. The first parameter is a number of RUs in the first set of RUs, and the second parameter is a number of RUs occupied by the first wireless signal. The first set of RUs are RUs scheduled for the first signaling assuming the second signaling is not present.

As sub-embodiment 4 of embodiment 8, the first signaling indicates the MCS of the first wireless signal and the MCS of the second sub-wireless signal, and the second signaling indicates the MCS of the third sub-wireless signal.

As sub-embodiment 5 of embodiment 8, if the number of RUs scheduled by the second signaling is greater than the difference of the first parameter minus the second parameter, the second sub-radio signal is part of the second radio signal; otherwise the second sub-wireless signal is the second wireless signal.

As a sub-embodiment 6 of embodiment 8, the transmission time corresponding to the first bit block is 1 millisecond.

As a sub-embodiment 7 of embodiment 8, the transmission Time is TTI (Transport Time Interval) or sTTI (short TTI).

As a sub-embodiment 8 of the embodiment 8, the transmission time is a time required for transmission from a MAC (Medium Access Control) layer to a physical layer.

Example 9

Example 9 is a schematic diagram illustrating a relationship between { first wireless signal, second wireless signal } and { first bit block, second bit block } as shown in fig. 9.

In embodiment 9, the second signaling is used to determine that the first block of bits is not used to generate the second wireless signal, and the second block of bits is used to generate the second wireless signal. And the sending ends of the first wireless signal and the second wireless signal generate the first wireless signal according to the first bit block. And the transmitting ends of the first wireless signal and the second wireless signal generate the second wireless signal according to the second bit block. And the transmission time corresponding to the second bit block is less than the transmission time corresponding to the first bit block.

Example 10

Embodiment 10 is a block diagram of a processing apparatus used in a UE, as shown in fig. 10. In fig. 10, the UE apparatus 200 is mainly composed of a first receiving module 201 and a first processing module 202.

The first receiving module 201 is configured to receive a first signaling in a first time window and receive a second signaling in a third time window; the first processing module 202 is configured to operate the first wireless signal in the second time window and operate the second wireless signal in the fourth time window.

In embodiment 10, the operation is reception or the operation is transmission. The first signaling is used to determine the second time window, and the second signaling is used to determine the fourth time window. A first bit block is used to generate the first wireless signal. The time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window overlap, and the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. The time frequency resources occupied by the first radio signal and the time frequency resources occupied by the second radio signal are orthogonal.

As sub-embodiment 1 of embodiment 10, the first processing module 202 is further configured to combine the first wireless signal and the second sub-wireless signal into a target wireless signal, and recover the first bit block according to the target wireless signal, where the operation is receiving; or generating a target wireless signal according to the first bit block, and splitting the target wireless signal into two parts, namely the first wireless signal and a second sub-wireless signal, wherein the operation is transmission. Wherein the first bit block is used for generating the second wireless signal, and at least the former of { the first bit block, second bit block } is used for generating the second wireless signal. The second sub wireless signal is a portion of the second wireless signal; or the second sub wireless signal is the second wireless signal.

As a sub-embodiment of sub-embodiment 1 of embodiment 10, the second wireless signal is composed of the second sub wireless signal and a third sub wireless signal, and the second bit block is used to generate the third sub wireless signal.

As sub-embodiment 2 of embodiment 10, the first receiving module 201 is further configured to receive a third signaling. Wherein the third signaling is used to determine at least one of { first resource pool, second resource pool }. The first resource pool includes a plurality of first time intervals, and the third time window is one of the first time intervals in the first resource pool. The second resource pool includes a plurality of second time intervals, and the fourth time window is one of the second time intervals in the second resource pool.

Example 11

Embodiment 11 is a block diagram of a processing apparatus used in a base station, as shown in fig. 11. In fig. 11, a base station apparatus 300 is mainly composed of a first transmission module 301 and a second processing module 302.

The first sending module 301 is configured to send a first signaling in a first time window and send a second signaling in a third time window; the second processing module 302 is configured to execute the first wireless signal in the second time window and execute the second wireless signal in the fourth time window.

In embodiment 11, the execution is transmission or the execution is reception. The first signaling is used to determine the second time window, and the second signaling is used to determine the fourth time window. A first bit block is used to generate the first wireless signal. The time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window overlap, and the second signaling is used to determine whether the first bit block is used to generate the second wireless signal. The time frequency resources occupied by the first radio signal and the time frequency resources occupied by the second radio signal are orthogonal.

As sub-embodiment 1 of embodiment 11, the second processing module 302 is further configured to generate a target wireless signal according to the first bit block, and split the target wireless signal into two parts, namely, the first wireless signal and a second sub-wireless signal, where the performing is sending; or combining the first wireless signal and the second sub wireless signal into a target wireless signal, and recovering the first bit block according to the target wireless signal, wherein the execution is receiving. Wherein the first block of bits is used to generate the second wireless signal. The second sub wireless signal is a portion of the second wireless signal; or the second sub wireless signal is the second wireless signal.

As sub-embodiment 2 of embodiment 11, the first sending module is further configured to send a third signaling. Wherein the third signaling is used to determine at least one of { first resource pool, second resource pool }. The first resource pool includes a plurality of first time intervals, and the third time window is one of the first time intervals in the first resource pool. The second resource pool includes a plurality of second time intervals, and the fourth time window is one of the second time intervals in the second resource pool.

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 or the terminal in the invention includes but is not limited to wireless communication equipment such as a mobile phone, a tablet computer, a notebook, a network card, an NB-IOT terminal, an eMTC terminal and the like. The base station or system device 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

1. A method in a UE used for low latency communication, comprising the steps of:

-step b. transmitting the first radio signal within a second time window and the second radio signal within a fourth time window;

wherein, the first signaling and the second signaling are DCI granted in uplink respectively; the first signaling is used to determine the second time window, the second signaling is used to determine the fourth time window; a first bit block is used to generate the first wireless signal; the time domain resources occupied by the fourth time window and the time domain resources occupied by the second time window overlap, the second signaling is used to determine whether the first bit block is used to generate the second wireless signal; the time frequency resources occupied by the first radio signal and the time frequency resources occupied by the second radio signal are orthogonal.

2. A method in a base station for low delay communication, comprising the steps of:

-step b. receiving the first wireless signal within a second time window and the second wireless signal within a fourth time window;

3. A user equipment for use in low latency communications, comprising:

a first processing module: transmitting the first wireless signal within a second time window and the second wireless signal within a fourth time window;

4. The user equipment used for low latency communication according to claim 3, wherein frequency domain resources occupied by the first radio signal and frequency domain resources occupied by the second radio signal overlap; the RU occupied by the first wireless signal is an RU in the first set of RUs and outside the second set of RUs; the first set of RUs are RUs scheduled for the first signaling assuming the second signaling is absent, the second set of RUs being RUs occupied by the second wireless signal; the RU occupies one subcarrier in the frequency domain and occupies the duration of one OFDM symbol in the time domain.

5. The user equipment used for low latency communication according to claim 3, wherein the time domain resources occupied by the first radio signal and the fourth time window are orthogonal.

6. The user equipment used for low latency communication according to claim 3, wherein the second signaling is used to determine that the first bit block is used to generate the second wireless signal, at least the former of the first bit block and the second bit block being used to generate the second wireless signal; or the second signaling is used to determine that the first block of bits is not used to generate the second wireless signal, the latter of both the first and second blocks of bits being used to generate the second wireless signal; and the transmission time corresponding to the second bit block is less than the transmission time corresponding to the first bit block.

7. The UE of any one of claims 3 to 6, wherein the first processing module generates a target wireless signal according to the first bit block, and splits the target wireless signal into two parts, namely the first wireless signal and a second sub-wireless signal; wherein the first block of bits is used to generate the second wireless signal; the second sub wireless signal is a portion of the second wireless signal; or the second sub wireless signal is the second wireless signal.

8. The user equipment as claimed in claim 7, wherein the MCS of the second sub-radio signal is the same as the MCS of the first radio signal, and the number of RUs occupied by the second sub-radio signal is equal to the difference of the first parameter minus the second parameter; the first parameter is a number of RUs in a first set of RUs, and the second parameter is a number of RUs occupied by the first wireless signal; the first set of RUs are RUs scheduled for the first signaling assuming the second signaling is not present.

9. The user equipment used for low latency communication according to any one of claims 3 to 6, wherein the first receiving module receives a third signaling; wherein the third signaling is used to determine at least one of the first resource pool and the second resource pool; the first resource pool comprises a plurality of first time intervals, the third time window being one first time interval in the first resource pool; the second resource pool includes a plurality of second time intervals, and the fourth time window is one of the second time intervals in the second resource pool.

10. A user equipment used for low latency communication according to any of claims 3 to 6, wherein the target signalling lacks a first domain compared to the second signalling; the first field in the second signaling is used to determine whether the first bit block is used to generate the second wireless signal; the transmission time corresponding to the wireless signal scheduled by the target signaling is the same as the transmission time corresponding to the wireless signal scheduled by the second signaling; the receiver of the target signaling is configured with only one kind of the transmission time.

11. A base station device to be used for low latency communication, comprising:

a second processing module: receiving the first wireless signal in a second time window and the second wireless signal in a fourth time window;