CN112953689A

CN112953689A - Method and device used in user equipment and base station with variable transmission format

Info

Publication number: CN112953689A
Application number: CN202110397727.8A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2017-06-09
Filing date: 2017-06-09
Publication date: 2021-06-11
Anticipated expiration: 2037-06-09
Also published as: CN109039550A; CN112953688A; CN112953689B; CN109039550B

Abstract

The application discloses a method and a device used in a user equipment and a base station with variable transmission formats. The user equipment firstly receives a first signaling and a first wireless signal in a first time slot, secondly receives a second signaling in a second time slot, and then sends a second wireless signal in a third time slot; the first signaling includes scheduling information for a first wireless signal, the first signaling is used to determine a target time slot, the target time slot is reserved for target information, the target information indicates whether the first wireless signal is correctly received, the second signaling is used to determine { the first time slot, scheduling information for the second wireless signal }, the second wireless signal is used to determine whether the first wireless signal is correctly received. By designing the second wireless signal, correct transmission of uplink feedback information under a variable transmission format is guaranteed, and system performance and transmission efficiency are improved.

Description

Method and device used in user equipment and base station with variable transmission format

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

application date of the original application: 2017.06.09

- -application number of the original application: 201710433018.4

The invention of the original application is named: method and device used in user equipment and base station with variable transmission format

Technical Field

The present application relates to methods and apparatus used for variable transmission formats, and more particularly, to methods and apparatus for feedback information transmission.

Background

In an existing LTE (Long Term Evolution) system, for a Downlink subframe, a UE (User Equipment) searches for a corresponding DCI (Downlink Control Information) in the Downlink subframe. The Downlink Grant (Grant) tends to schedule the DL-SCH (Downlink Shared Channel) of the current subframe, and the Uplink Grant tends to schedule the UL-SCH (Uplink Shared Channel) of the subsequent subframe. In a 5G communication system, the definitions of an uplink subframe and a downlink subframe will become more flexible, transmission of a downlink channel will also occur in the uplink subframe, and for a scene in which uplink and downlink Traffic (Traffic) dynamically changes, an SFI (Slot Format Indicator) is defined in 3GPP RAN1#89 times for dynamically indicating a Format of a Slot to flexibly change a ratio used for uplink transmission and downlink transmission in the Slot. Based on the introduction of SFI, the transmission of uplink HARQ-ACK (Hybrid Automatic Repeat request-Acknowledgement) of downlink data needs to be reconsidered.

Disclosure of Invention

In LTE and LTE-a (enhanced LTE) systems, after a UE is scheduled by a base station to receive a downlink data channel through a downlink Grant (Grant), the UE feeds back HARQ-ACK for the downlink data channel on a given uplink resource known to the base station and the UE, and the given uplink resource is reserved by the base station.

In the 5G system, due to the introduction of the SFI, the timeslot transmission format will change dynamically, resources originally reserved for the UE for uplink feedback transmission are configured as downlink resources by the SFI because of the increased burst downlink traffic, and the uplink feedback method having the SFI indication needs to be redesigned in consideration of the false detection and the missed detection side of the SFI.

The present application 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 user equipment of the present application may be applied in the base station and vice versa.

The application discloses a method used in a user equipment with variable transmission format, which is characterized by comprising the following steps:

-step a. receiving a first signaling and a first wireless signal in a first time slot;

-step b. receiving second signalling in a second time slot;

-step c. transmitting a second radio signal in a third time slot;

wherein the first signaling comprises scheduling information of a first wireless signal, the first signaling is used to determine a target time slot, the target time slot is reserved for target information, the target information indicates whether the first wireless signal is correctly received, the second signaling is used to determine { the first time slot, scheduling information of the second wireless signal }, the second wireless signal is used to determine whether the first wireless signal is correctly received, the target time slot precedes the second time slot, and the scheduling information comprises at least one of { allocated time domain resource, allocated frequency domain resource, modulation coding status, hybrid automatic repeat request process number, redundancy version, new data indication }.

As an example, the above method has the benefits of: and the user equipment sends the HARQ-ACK corresponding to the first wireless signal to the base station again through the second wireless signal outside the time-frequency resource reserved for the target information so as to ensure that the base station can correctly obtain the transmission condition of the first wireless signal.

As an example, the problems with existing systems that the above approach would overcome are: when the target timeslot is configured to a format that does not include an uplink transmission part because of bursty downlink traffic, or the ue cannot determine whether the target timeslot is in a format that includes an uplink transmission part, the ue will not send the target information, and thus the sender of the first radio signal cannot determine whether the ue correctly receives the first radio signal.

As an example, another benefit of the above method is: the second signaling is used for determining scheduling information of the second wireless signal, the transmission of the second wireless signal is scheduled based on a base station, and the transmission of the second wireless signal is more flexible.

As an example, a further benefit of the above method is: the second signaling is used to determine the first time slot, and the user equipment knows unambiguously the second radio signal for the first radio signal, thereby ensuring that the user equipment feeds back the correct HARQ-ACK, but not other HARQ-ACKs not associated with the first radio signal.

According to one aspect of the application, the above method is characterized by comprising:

-step A0. monitoring the third signaling to determine that some or all of the target time slots are allocated for non-uplink transmissions;

wherein the non-uplink transmission comprises at least one of a downlink transmission and a guard interval.

As an embodiment, the above method is characterized in that: and the third signaling dynamically configures the transmission format of the target time slot, thereby influencing the sending of the target information.

-a step a1. abandoning the sending of the target information in the target time slot, or sending the target information only in target sub-time slots;

wherein the target sub-slot is a portion of the target slot.

As an embodiment, the above method is characterized in that: and the user equipment judges whether the target information is sent in the target time slot or not according to whether the third signaling is correctly detected or not and the content of the third signaling.

As an example, the above method has the benefits of: when the target time slot is reserved for uplink transmission, and an uplink time domain resource corresponding to the target time slot is smaller than a pre-configured uplink resource for target information transmission, the user equipment still transmits the target information to enable the base station to obtain the feedback information of the first wireless signal in advance before configuring the second wireless signal, and therefore performance is improved.

-a step a2. receiving a fourth signaling;

the fourth signaling is used to determine a first time domain resource, a transmission format corresponding to the first time domain resource can be dynamically configured, the target timeslot belongs to the first time domain resource, and the transmission format is at least one of { downlink transmission, uplink transmission, and guard interval }.

As an example, the above method has the benefits of: and the fourth signaling is preconfigured with a time slot in which a transmission format can be dynamically configured, so that the times of detecting the third signaling by the UE are reduced, and the implementation complexity and the power consumption of the UE are further reduced.

The application discloses a method used in a variable transmission format base station, characterized by comprising:

-step a. transmitting a first signaling and a first wireless signal in a first time slot;

-step b. sending second signalling in a second time slot;

-step c. receiving a second radio signal in a third time slot;

-step A0. sending a third signaling to determine that some or all of the target time slots are allocated for non-uplink transmissions;

-a step a1. abandoning the reception of the target information in the target time slot or only receiving the target information in a target sub-time slot;

wherein the target sub-slot is a portion of the target slot.

-a step a2. sending a fourth signaling;

The application discloses a user equipment used for variable transmission format, which is characterized by comprising:

-a first processing module receiving first signaling and a first wireless signal in a first time slot;

-a first receiving module receiving second signaling in a second time slot;

-a first transmitting module for transmitting a second radio signal in a third time slot;

As an embodiment, the above user equipment for variable transmission format is characterized in that the first processing module is further configured to monitor a third signaling to determine that part or all of the target timeslot is allocated to non-uplink transmission; the non-uplink transmission includes at least one of a downlink transmission and a guard interval.

As an embodiment, the above user equipment for variable transmission formats is characterized in that the first processing module is further configured to abandon sending the target information in the target timeslot or send the target information only in a target sub-timeslot; the target sub-slot is a portion of the target slot.

As an embodiment, the above user equipment for variable transmission formats is characterized in that the first processing module is further configured to receive a fourth signaling; the fourth signaling is used to determine a first time domain resource, a transmission format corresponding to the first time domain resource can be dynamically configured, the target timeslot belongs to the first time domain resource, and the transmission format is at least one of { downlink transmission, uplink transmission, and guard interval }.

The present application discloses a base station apparatus used for a variable transmission format, characterized by comprising:

-a second processing module, transmitting the first signaling and the first wireless signal in the first time slot;

-a second transmitting module for transmitting second signaling in a second time slot;

-a second receiving module for receiving a second radio signal in a third time slot;

As an embodiment, the above base station device for variable transmission formats is characterized in that the second processing module is further configured to send a third signaling to determine that part or all of the target timeslot is allocated to non-uplink transmission; the non-uplink transmission includes at least one of a downlink transmission and a guard interval.

As an embodiment, the base station device for variable transmission formats is characterized in that the second processing module is further configured to abandon receiving the target information in the target timeslot or receive the target information only in a target sub-timeslot; the target sub-slot is a portion of the target slot.

As an embodiment, the above base station device for variable transmission formats is characterized in that the second processing module is further configured to send a fourth signaling; the fourth signaling is used to determine a first time domain resource, a transmission format corresponding to the first time domain resource can be dynamically configured, the target timeslot belongs to the first time domain resource, and the transmission format is at least one of { downlink transmission, uplink transmission, and guard interval }.

As an embodiment, compared with the prior art, the present application has the following technical advantages:

the ue sends HARQ-ACK corresponding to the first radio signal to the base station again through the second radio signal outside the time-frequency resource reserved for the target information, so as to ensure that the base station correctly obtains feedback for the first radio signal;

designing a second signaling for determining scheduling information of the second wireless signal, so as to implement that the sending of the second wireless signal is scheduled based on the base station, so that the sending of the second wireless signal is more flexible;

designing the second signaling to be used for determining the first time slot, the ue explicitly knows unambiguously the first radio signal to which the second radio signal is directed, thereby ensuring that the ue feeds back the correct HARQ-ACK instead of other HARQ-ACKs not associated with the first radio signal;

when a target sub-slot reserved for uplink transmission exists in the target time slot, even if the uplink time domain resource corresponding to the target sub-slot is smaller than the uplink resource configured in advance for target information transmission, the user equipment still transmits the target information to enable the base station to obtain the feedback information of the first wireless signal in advance before configuring the second wireless signal, thereby improving the performance.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 shows a flow diagram of a first wireless signal and a second wireless signal according to one embodiment of the present application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

figure 4 shows a schematic diagram of an evolved node and a given user equipment according to an embodiment of the present application;

FIG. 5 shows a flow diagram of first signaling and second signaling transmissions according to one embodiment of the present application;

fig. 6 shows a time domain diagram of first, second and third signaling according to an embodiment of the application;

FIG. 7 shows a diagram of a target time slot and a target sub-time slot, according to one embodiment of the present application;

FIG. 8 shows a schematic diagram of a first time-frequency resource according to an embodiment of the present application;

FIG. 9 shows a block diagram of a processing device in a UE according to an embodiment of the present application;

fig. 10 shows a block diagram of a processing device in a base station according to an embodiment of the present application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flow chart of a first wireless signal and a second wireless signal according to the present application, as shown in fig. 1. The user equipment in the application receives a first signaling and a first wireless signal in a first time slot; secondly, receiving a second signaling in a second time slot; the second wireless signal is again transmitted in the third time slot. The first signaling includes scheduling information of a first wireless signal, the first signaling is used to determine a target time slot, the target time slot is reserved for target information, the target information indicates whether the first wireless signal is correctly received, the second signaling is used to determine { the first time slot, scheduling information of the second wireless signal }, the second wireless signal is used to determine whether the first wireless signal is correctly received, the target time slot precedes the second time slot, and the scheduling information includes at least one of { allocated time domain resources, allocated frequency domain resources, modulation coding status, hybrid automatic repeat request process number, redundancy version, new data indication }.

As a sub-embodiment, the Slot corresponds to a Slot in the 3GPP specification.

As a sub-embodiment, the time slot duration in the time domain is at least one of {0.5 milliseconds (ms), 1ms }.

As a sub-embodiment, the first signaling is a DCI.

As a sub-embodiment, the first signaling is a downlink grant.

As a sub-embodiment, the first signaling includes a CRC (Cyclic Redundancy Check), and the CRC is scrambled by a Cell Radio Network Temporary Identity (Cell Radio Network Temporary Identity) of the user equipment.

As a sub-embodiment, the first signaling is transmitted in a PDCCH (Physical Downlink Control Channel).

As a sub-embodiment, the first signaling is transmitted in an SPDCCH (Short Latency PDCCH).

As a sub-embodiment, the first signaling is transmitted in NR-PDCCH (New RAT PDCCH, New radio access physical downlink control channel).

As a sub-embodiment, the transmission channel corresponding to the first wireless signal is DL-SCH.

As a sub-embodiment, the Physical layer Channel corresponding to the first wireless signal is a PDSCH (Physical Downlink Shared Channel).

As a sub-embodiment, the physical layer channel corresponding to the first wireless signal is SPDSCH (Short Latency PDSCH).

As a sub-embodiment, the physical layer channel corresponding to the first wireless signal is NR-PDSCH (New RAT PDSCH).

As a sub-embodiment, the target information is transmitted on a PUCCH (Physical Uplink Control Channel).

As a sub-embodiment, the target information is transmitted on SPUCCH (Short Latency PUCCH, Short delay physical uplink control channel).

As a sub-embodiment, the target information is transmitted on NR-PUCCH (New RAT PUCCH, New radio access physical uplink control channel).

As a sub-embodiment, the transmission channel corresponding to the target information is UL-SCH.

As a sub-embodiment, the target information is transmitted on a PUSCH (Physical Uplink Shared Channel).

As a sub-embodiment, the target information is transmitted on the SPUSCH (Short Latency PUSCH).

As a sub-embodiment, the target information is transmitted on NR-PUSCH (New RAT PUSCH, New radio access physical uplink shared channel).

As a sub-embodiment, the second signaling is a DCI.

As a sub-embodiment, the second signaling is an uplink grant.

As a sub-embodiment, the second signaling comprises a CRC, which is scrambled by a C-RNTI of the user equipment.

As a sub-embodiment, the second signaling is transmitted in the PDCCH.

As a sub-embodiment, the second signaling is transmitted in SPDCCH.

As a sub-embodiment, the second signaling is transmitted in NR-PDCCH.

As a sub-embodiment, the transmission channel corresponding to the second wireless signal is UL-SCH.

As a sub-embodiment, the second wireless signal is transmitted on PUSCH.

As a sub-embodiment, the second wireless signal is transmitted on the SPUSCH.

As a sub-embodiment, the second wireless signal is transmitted on NR-PUSCH.

As a sub-embodiment, the second signaling used to determine the first time slot refers to: the second signaling explicitly indicates a time domain position of the first slot.

As a sub-embodiment, the second signaling used to determine the first time slot refers to: and the second signaling explicitly indicates the HARQ process number corresponding to the first wireless signal.

As a sub-embodiment, the second signaling is used to determine the third time slot.

As an additional embodiment of this sub-embodiment, the second signaling is used to determine the third timeslot by: the second signaling explicitly indicates a time domain location of the third slot.

As a sub-embodiment, the modulation and Coding scheme corresponds to mcs (modulation and Coding status) in TS 36.212.

As a sub-embodiment, the harq (hybrid Automatic Repeat request) process number corresponds to a harq (hybrid Automatic Repeat request) process number in TS 36.212.

As a sub-embodiment, the redundancy version corresponds to rv (redundancy version) in TS 36.212.

As a sub-embodiment, the new Data indication corresponds to ndi (new Data indicator) in TS 36.212.

As a sub-embodiment, the target information further includes at least one of { CQI (Channel Quality Indicator), PMI (Precoding Matrix Indicator), RI (Rank Indicator, order indication), CRI (CSI-RS Resource Indicator ), QCL (Quasi co-located, Quasi co-located), BPL (Beam Pair ) }.

As an additional embodiment of this sub-embodiment, the target information is for a radio channel between the user equipment and a sender of the first signaling.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 is a diagram illustrating LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced), and future 5G system network architectures 200. The LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200. The EPS 200 may include one or more UEs (User Equipment) 201, E-UTRAN (Evolved UMTS terrestrial radio access network) 202, EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220, and internet service 230. The UMTS is compatible with Universal Mobile Telecommunications System (Universal Mobile Telecommunications System). The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services. The E-UTRAN includes evolved node Bs (eNBs) 203 and other eNBs 204. The eNB203 provides user and control plane protocol terminations towards the UE 201. eNB203 may be connected to other enbs 204 via an X2 interface (e.g., backhaul). The eNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive point), or some other suitable terminology. eNB203 provides UE201 with an access point to EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. eNB203 connects to EPC210 through the S1 interface. The EPC210 includes an MME211, other MMEs 214, an S-GW (Service Gateway) 211, and a P-GW (Packet data Network Gateway) 213. MME211 is a control node that handles signaling between UE201 and EPC 210. In general, the MME211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW211, and S-GW211 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS streaming service (PSs).

As a sub-embodiment, the UE201 corresponds to a user equipment in the present application.

As a sub-embodiment, the eNB203 corresponds to a base station in the present application.

As a sub-embodiment, the UE201 supports wireless transmission with variable transmission formats.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the UE and the eNB in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the eNB through PHY 301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at an eNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW213 on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handover support for UEs between enbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and eNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the eNB and the UE.

As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.

As a sub-embodiment, the first signaling in this application is generated in the PHY 301.

As a sub-embodiment, the second signaling in this application is generated in the PHY 301.

As a sub-embodiment, the third signaling in this application is generated in the PHY 301.

As a sub-embodiment, the third signaling in this application is generated in the MAC sublayer 302.

As a sub-embodiment, the first wireless signal in the present application is generated in the MAC sublayer 302.

As a sub-embodiment, the target information in the present application is terminated in the MAC sublayer 302.

As a sub-embodiment, the second wireless signal in this application is terminated in the MAC sublayer 302.

As a sub-embodiment, the fourth signaling in this application is generated in the RRC sublayer 306.

Example 4

Embodiment 4 shows a schematic diagram of an evolved node and a given user equipment according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of an eNB410 in communication with a UE450 in an access network. In the DL (Downlink), upper layer packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In the DL, the controller/processor 475 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the UE450 based on various priority metrics. Controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to UE 450. The transmit processor 416 implements various signal processing functions for the L1 layer (i.e., the physical layer). The signal processing functions include decoding and interleaving to facilitate Forward Error Correction (FEC) at the UE450 and mapping to signal constellation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The coded and modulated symbols are then split into parallel streams. Each stream is then mapped to a multicarrier subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and/or frequency domain, and then combined together using an Inverse Fast Fourier Transform (IFFT) to produce a physical channel carrying a time-domain multicarrier symbol stream. The multi-carrier stream is spatially pre-decoded to produce a plurality of spatial streams. Each spatial stream is then provided via a transmitter 418 to a different antenna 420. Each transmitter 418 modulates an RF carrier with a respective spatial stream for transmission. At the UE450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto an RF carrier and provides the information to a receive processor 456. The receive processor 456 performs various signal processing functions at the L1 level. The receive processor 456 performs spatial processing on the information to recover any spatial streams destined for the UE 450. If multiple spatial streams are destined for UE450, they may be combined into a single multicarrier symbol stream by receive processor 456. A receive processor 456 then converts the multicarrier symbol stream from the time-domain to the frequency-domain using a Fast Fourier Transform (FFT). The frequency domain signal comprises a separate multicarrier symbol stream for each subcarrier of the multicarrier signal. The symbols on each subcarrier, as well as the reference signal, are recovered and demodulated by determining the most likely signal constellation point transmitted by the eNB 410. These soft decisions may be based on channel estimates computed by the channel estimator 458. The soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted by the eNB410 on the physical channel. The data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the L2 layer. The controller/processor can be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the UL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packets are then provided to a data sink 462, which represents all protocol layers above the L2 layer. Various control signals may also be provided to the data sink 462 for processing by the L3. The controller/processor 459 is also responsible for error detection using an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations. In the UL (Uplink), a data source 467 is used to provide the upper layer packet to the controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the functionality described in connection with the DL transmission of the eNB410, the controller/processor 459 implements the L2 layer for the user plane and the control plane by providing header compression, ciphering, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the eNB 410. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the eNB 410. Channel estimates derived by the channel estimator 458 from the reference signals or feedback transmitted by the eNB410 may be used by the transmit processor 468 to select appropriate coding and modulation schemes and to facilitate spatial processing. The spatial streams generated by the transmit processor 468 are provided to different antennas 452 via separate transmitters 454. Each transmitter 454 modulates an RF carrier with a respective spatial stream for transmission. The UL transmissions are processed at the eNB410 in a manner similar to that described in connection with the receiver functionality at the UE 450. Each receiver 418 receives a signal through its respective antenna 420. Each receiver 418 recovers information modulated onto an RF carrier and provides the information to a receive processor 470. Receive processor 470 may implement the L1 layer. The controller/processor 475 implements the L2 layer. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the UL, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network. Controller/processor 475 is also responsible for error detection using the ACK and/or NACK protocol to support HARQ operations.

As a sub-embodiment, the UE450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor.

As a sub-embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: the first signaling and the first wireless signal are received in a first time slot, the second signaling is received in a second time slot, and the second wireless signal is transmitted in a third time slot.

As a sub-embodiment, the eNB410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor.

As a sub-embodiment, the eNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: the first signaling and the first wireless signal are transmitted in the first time slot, the second signaling is transmitted in the second time slot, and the second wireless signal is received in the third time slot.

As a sub-embodiment, the UE450 corresponds to the UE in this application.

As a sub-embodiment, the eNB410 corresponds to the base station in this application.

As a sub-embodiment, at least one of the receive processor 456 and the controller/processor 459 is configured to receive first signaling and first wireless signals in a first time slot.

As a sub-embodiment, at least one of the receive processor 456 and the controller/processor 459 is configured to receive second signaling in a second time slot.

As a sub-embodiment, at least one of the receive processor 456 and the controller/processor 459 is configured to monitor for third signaling to determine that some or all of the target time slots are allocated for non-uplink transmissions.

As a sub-embodiment, at least one of the receive processor 456 and the controller/processor 459 is configured to receive fourth signaling.

As a sub-embodiment, at least one of the transmit processor 468 and the controller/processor 459 is configured to send a second wireless signal in a third time slot.

As a sub-embodiment, at least one of the transmit processor 468 and the controller/processor 459 is configured to refrain from transmitting the target information in the target time slot or to transmit the target information only in a target sub-time slot.

As a sub-embodiment, at least one of the transmit processor 416 and the controller/processor 475 is configured to transmit first signaling and first wireless signals in a first time slot

As a sub-embodiment, at least one of the transmit processor 416 and the controller/processor 475 is configured to send second signaling in a second time slot

As a sub-embodiment, at least one of the transmit processor 416 and the controller/processor 475 is configured to send third signaling to determine that some or all of the target time slots are allocated for non-uplink transmissions.

As a sub-embodiment, at least one of the transmit processor 416 and the controller/processor 475 is configured to send and receive fourth signaling.

As a sub-embodiment, at least one of the receive processor 470 and the controller/processor 475 is configured to receive a second wireless signal in a third time slot.

As a sub-embodiment, at least one of the receive processor 470 and the controller/processor 475 is configured to refrain from receiving the target information in the target time slot or to receive the target information only in the target sub-time slot.

Example 5

Embodiment 5 illustrates a flow chart of transmission of a first signaling and a second signaling according to the present application, as shown in fig. 5. In fig. 5, base station N1 is the serving cell maintaining base station for UE U2. The step identified by block F0 is optional and the operations corresponding to the dashed arrows in the figure are optional.

For theBase station N1Transmitting fourth signaling in step S10; transmitting a first signaling and a first wireless signal in a first time slot in step S11; sending a third signaling in step S12 to determine that part or all of the target time slot is allocated to non-uplink transmission; abandoning to receive the target information in the target time slot or receiving the target information only in a target sub-time slot in step S13; transmitting second signaling in a second time slot in step S14; the second wireless signal is received in the third time slot in step S15.

For theUE U2Receiving a fourth signaling in step S20; receiving a first signaling and a first wireless signal in a first time slot in step S21; monitoring the third signaling in step S22 to determine that part or all of the target time slot is allocated to non-uplink transmission; abandoning to transmit the target information in the target time slot or transmitting the target information only in a target sub-time slot in step S23; receiving second signaling in a second time slot in step S24; the second wireless signal is transmitted in the third time slot in step S25.

In embodiment 5, the first signaling includes scheduling information of a first wireless signal, the first signaling is used to determine a target time slot, the target time slot is reserved for target information, the target information indicates whether the first wireless signal is correctly received, the second signaling is used to determine { the first time slot, scheduling information of a second wireless signal }, the second wireless signal is used to determine whether the first wireless signal is correctly received, the target time slot precedes the second time slot, and the scheduling information includes at least one of { allocated time domain resources, allocated frequency domain resources, modulation coding status, hybrid automatic repeat request process number, redundancy version, new data indication }. The non-uplink transmission includes at least one of a downlink transmission and a guard interval. The target sub-slot is a portion of the target slot. The fourth signaling is used to determine a first time domain resource, a transmission format corresponding to the first time domain resource can be dynamically configured, the target timeslot belongs to the first time domain resource, and the transmission format is at least one of { downlink transmission, uplink transmission, and guard interval }.

As a sub-embodiment, the third signaling is used to determine that part or all of any one of K candidate time slots is allocated to non-uplink transmission, and the target time slot is one of the K candidate time slots; the K is a positive integer greater than 1.

As a sub-embodiment, the determining that part or all of the target timeslots are allocated to non-uplink transmission means: and determining at least one of the number of the multi-carrier symbols occupied by the part reserved for downlink transmission, the number of the multi-carrier symbols occupied by the part reserved for guard interval and the number of the multi-carrier symbols occupied by the part reserved for uplink transmission in the target time slot.

As a subsidiary embodiment of this sub-embodiment, the portion reserved for Downlink transmission corresponds to DwPTS (Downlink Pilot Time Slot) in the 3GPP specification.

As an auxiliary embodiment of this sub-embodiment, the portion reserved for Uplink transmission corresponds to an UpPTS (Uplink Pilot Time Slot) in the 3GPP specification.

As an additional embodiment of this sub-embodiment, the portion reserved for the Guard interval corresponds to a GP (Guard Period) in the 3GPP specification.

As a sub-embodiment, the multi-carrier symbol in the present application is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As a sub-embodiment, the multi-Carrier symbol in the present application is an SC-FDMA (Single-Carrier Frequency Division Multiple Access) symbol.

As a sub-embodiment, the Multi-Carrier symbol in the present application is an FBMC (Filter Bank Multi Carrier) symbol.

As a sub-embodiment, the multi-carrier symbol in this application is an OFDM symbol including a CP (Cyclic Prefix).

As a sub-embodiment, the multi-carrier symbol in this application is a DFT-s-OFDM (Discrete Fourier Transform spread Orthogonal Frequency Division Multiplexing) symbol containing a CP.

As a sub-embodiment, the third signaling is Group Common physical layer control signaling.

As a sub-embodiment, the third signaling comprises a CRC check scrambled with a given RNTI other than the UE-specific RNTI.

As an additional embodiment of this sub-embodiment, the given RNTI is fixed.

As a subsidiary embodiment of this sub-embodiment, the given RNTI is configured by higher layer signaling.

As a sub-embodiment, the number of blind detections for the third signaling is fixed.

As a sub-embodiment of this embodiment, the number of blind detections for the third signaling is different from the number of blind detections for the first signaling.

As a sub-embodiment, AL (Aggregation Level) for the third signaling is fixed.

As a subsidiary embodiment of the sub-embodiment, the AL for the third signaling is a given AL, and blind detection according to the given AL is not included in blind detection for the first signaling.

As a sub-embodiment, the third signaling indicates that no part reserved for uplink transmission is included in the target time slot in which the UE U2 abandons sending the target information.

As a sub-embodiment, the third signaling indicates that the target timeslot includes a target sub-timeslot, the target sub-timeslot is reserved for uplink transmission, and the UE U2 sends the target information in the target sub-timeslot.

As a sub-embodiment, the UE U2 did not decode the third signaling correctly, the UE U2 refrains from sending the target information in the target slot.

As a sub-embodiment, the third signaling is used to determine the target sub-slot from the target slots, which are reserved for uplink transmission.

As a sub-embodiment, the target slot includes K1 multicarrier symbols, the K1 is a positive integer; the target sub-slot includes K2 multicarrier symbols, the K2 being a positive integer no greater than K1.

As an additional example of this sub-embodiment, the K2 is less than the K1.

As a sub-embodiment, the fourth signaling is Cell-Specific (Cell-Specific).

As a sub-embodiment, the fourth signaling is non-user specific.

As a sub-embodiment, the fourth signaling is transmitted in a SIB (System Information Block).

As a sub-embodiment, the fourth signaling is RRC (Radio Resource Control) signaling.

As a sub-embodiment, the first time-frequency resource includes M time slots, where M is a positive integer.

As an auxiliary embodiment of the sub-embodiment, the dynamic configuration of the transport format corresponding to the first time domain resource means: the transmission formats corresponding to the M time slots can be dynamically configured.

As an additional embodiment of this sub-embodiment, the M time slots are discrete in the time domain.

As a sub-embodiment, the transmission format is downlink transmission, which means: the number of multicarrier symbols occupied by the portion reserved for downlink transmission in the corresponding time slot is equal to N1, the number of multicarrier symbols occupied by the portion reserved for uplink transmission in the corresponding time slot is equal to N2, N1 is greater than N2, N1 is a positive integer, and N2 is a non-negative integer.

As a sub-embodiment, the transmission format is uplink transmission, which means: the number of multicarrier symbols occupied by the portion reserved for downlink transmission in the corresponding time slot is equal to N3, the number of multicarrier symbols occupied by the portion reserved for uplink transmission in the corresponding time slot is equal to N4, N4 is greater than N4, N3 is a positive integer, and N4 is a non-negative integer.

As a sub-embodiment, the transmission format is a guard interval, which means: the position and number of multicarrier symbols occupied by the portion of the corresponding time slot reserved for the guard interval are fixed.

As a sub-embodiment, the transmission Format is a Slot Format (Slot Format).

As a sub embodiment, the monitoring the third signaling is: the UE U2 blindly detects the third signaling.

As a sub embodiment, the monitoring the third signaling is: the UE U2 receives the third signaling to obtain information contained in the third signaling.

As a sub-embodiment, the monitoring the third signaling to determine that part or all of the target timeslot is allocated to non-uplink transmission means: the UE U2 is not certain that some or all of the target time slot is allocated for non-uplink transmissions prior to successfully decoding the third signaling.

As a sub embodiment, the monitoring the third signaling is: the UE U2 does not send the target information until the third signaling is successfully decoded.

Example 6

Embodiment 6 illustrates a time domain diagram of a first signaling, a second signaling and a third signaling according to the present application, as shown in fig. 6. In fig. 6, the first time slot, the target time slot, the second time slot, and the third time slot are sequentially arranged in the time domain. The first signaling is transmitted in the first time slot, the second signaling is transmitted in the second time slot, and the third signaling is used for determining that part or all of the target time slot is allocated to non-uplink transmission.

As a sub-embodiment, the third signaling is transmitted in the target time slot.

As a sub-embodiment, the third signaling is transmitted in a given time slot, which is located before the target time slot in the time domain.

Example 7

Embodiment 7 shows a schematic diagram of a target timeslot and a target sub-timeslot according to the present application, as shown in fig. 7. In fig. 7, the target timeslot occupies P1 multicarrier symbols in the time domain, P2 of the P1 multicarrier symbols are reserved for the target information transmission, and the target sub-timeslot occupies P3 multicarrier symbols in the time domain. The P1, P2 and P3 are all positive integers. The P3 is not greater than the P2.

As a sub-embodiment, the P3 is determined by the third signaling in this application.

As a sub-embodiment, the P1 is one of {7,14 }.

As a sub-embodiment, the P2 is one of {7,14 }.

As a sub-embodiment, the P3 is one of {1,2,3 }.

As a sub-embodiment, the P1 is equal to the P2.

Example 8

Embodiment 8 illustrates a schematic diagram of a first time-frequency resource according to the present application, as shown in fig. 8. In fig. 8, the first time-frequency resource includes M time slots in the time domain, where M is a positive integer.

As a sub-embodiment, the M time slots are discrete.

As a subsidiary embodiment of this sub-embodiment, the M time slots are periodically distributed, and an interval Q (ms) between any two adjacent time slots in the M time slots is fixed, or the Q is configured through higher layer signaling.

As an example of this subsidiary embodiment, said Q is equal to one of {5,10,20 }.

Example 9

Embodiment 9 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 9. In fig. 9, the UE processing apparatus 900 mainly comprises a first processing module 901, a first receiving module 902 and a first sending module 903.

A first processing module 901 receiving a first signaling and a first wireless signal in a first time slot;

-a first receiving module 902 for receiving second signaling in a second time slot;

a first transmitting module 903 transmitting the second radio signal in the third time slot;

in embodiment 9, the first signaling includes scheduling information of a first wireless signal, the first signaling is used to determine a target time slot, the target time slot is reserved for target information, the target information indicates whether the first wireless signal is correctly received, the second signaling is used to determine { the first time slot, scheduling information of a second wireless signal }, the second wireless signal is used to determine whether the first wireless signal is correctly received, the target time slot precedes the second time slot, and the scheduling information includes at least one of { allocated time domain resources, allocated frequency domain resources, modulation coding status, hybrid automatic repeat request process number, redundancy version, new data indication }.

As a sub-embodiment, the first processing module 901 is further configured to monitor a third signaling to determine that part or all of the target timeslot is allocated to non-uplink transmission; the non-uplink transmission includes at least one of a downlink transmission and a guard interval.

As a sub embodiment, the first processing module 901 is further configured to abandon sending the target information in the target timeslot, or send the target information only in a target sub timeslot; the target sub-slot is a portion of the target slot.

For an embodiment, the first processing module 901 is further configured to receive a fourth signaling; the fourth signaling is used to determine a first time domain resource, a transmission format corresponding to the first time domain resource can be dynamically configured, the target timeslot belongs to the first time domain resource, and the transmission format is at least one of { downlink transmission, uplink transmission, and guard interval }.

As a sub-embodiment, the first processing module 901 includes at least one of the receiving processor 456 and the controller/processor 459 in embodiment 4.

As a sub-embodiment, the first processing module 901 includes at least one of the transmit processor 468 and the controller/processor 459 of embodiment 4.

As a sub-embodiment, the first receiving module 902 includes at least one of the receiving processor 456 and the controller/processor 459 in embodiment 4.

As a sub-embodiment, the first sending module 903 comprises at least one of the sending processor 468 and the controller/processor 459 in embodiment 4.

Example 10

Embodiment 10 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 10. In fig. 10, the base station device processing apparatus 1000 mainly comprises a second processing module 1001, a second sending module 1002 and a second receiving module 1003.

A second processing module 1001, which transmits the first signaling and the first wireless signal in the first time slot;

a second sending module 1002, sending a second signaling in a second time slot;

a second receiving module 1003 for receiving a second wireless signal in a third time slot;

in embodiment 10, the first signaling includes scheduling information of a first wireless signal, the first signaling is used to determine a target time slot, the target time slot is reserved for target information, the target information indicates whether the first wireless signal is correctly received, the second signaling is used to determine { the first time slot, scheduling information of a second wireless signal }, the second wireless signal is used to determine whether the first wireless signal is correctly received, the target time slot precedes the second time slot, and the scheduling information includes at least one of { allocated time domain resources, allocated frequency domain resources, modulation coding status, hybrid automatic repeat request process number, redundancy version, new data indication }.

As a sub-embodiment, the second processing module 1001 is further configured to send a third signaling to determine that part or all of the target timeslot is allocated to non-uplink transmission; the non-uplink transmission includes at least one of a downlink transmission and a guard interval.

As a sub embodiment, the second processing module 1001 is further configured to abandon receiving the target information in the target timeslot, or receive the target information only in a target sub timeslot; the target sub-slot is a portion of the target slot.

As a sub embodiment, the second processing module 1001 is further configured to send a fourth signaling; the fourth signaling is used to determine a first time domain resource, a transmission format corresponding to the first time domain resource can be dynamically configured, the target timeslot belongs to the first time domain resource, and the transmission format is at least one of { downlink transmission, uplink transmission, and guard interval }.

As a sub-embodiment, the second processing module 1001 includes at least one of the transmit processor 416 and the controller/processor 475 of embodiment 4.

As a sub-embodiment, the second processing module 1001 includes at least one of the receiving processor 470 and the controller/processor 475 of embodiment 4.

As a sub-embodiment, the second sending module 1002 includes at least one of the transmit processor 416 and the controller/processor 475 of embodiment 4.

As a sub-embodiment, the second receiving module 1001 includes at least one of the receiving processor 470 and the controller/processor 475 in embodiment 4.

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. UE and terminal in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, MTC (Machine Type Communication ) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, equipment such as low-cost panel computer. The base station in the present application 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 application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method used in a variable transport format user equipment, comprising:

-step b. receiving second signalling in a second time slot;

-step c. transmitting a second radio signal in a third time slot;

wherein the first signaling comprises scheduling information of a first wireless signal, the first signaling is used for determining a target time slot, the target time slot is reserved for target information, the target information indicates whether the first wireless signal is correctly received, the second signaling is used for indicating that the second wireless signal is specific to the first wireless signal, the second signaling is used for determining allocated time domain resources of the second wireless signal and allocated frequency domain resources of the second wireless signal, the second wireless signal is used for indicating whether the first wireless signal is correctly received, and the target time slot is before the second time slot; the first signaling is a DCI, and the first signaling is a downlink grant.

2. A method used in a variable transport format base station, comprising:

-step b. sending second signalling in a second time slot;

-step c. receiving a second radio signal in a third time slot;

3. A user equipment for use with a variable transmission format, comprising:

-a first receiving module receiving second signaling in a second time slot;

4. The UE of claim 3, wherein the first processing module is further configured to monitor a third signaling to determine that part or all of the target timeslots are allocated to non-uplink transmissions; the non-uplink transmission includes at least one of a downlink transmission and a guard interval.

5. The UE of claim 3 or 4, wherein the first processing module is further configured to abandon sending the target information in the target timeslot.

6. The UE of any one of claims 3 to 5, wherein the first processing module is further configured to receive a fourth signaling; the fourth signaling is used to determine a first time domain resource, a transmission format corresponding to the first time domain resource can be dynamically configured, the target timeslot belongs to the first time domain resource, and the transmission format is at least one of { downlink transmission, uplink transmission, and guard interval }.

7. The UE of any one of claims 3 to 6, wherein the physical layer channel corresponding to the first radio signal is PDSCH.

8. The UE of any of claims 3 to 7, wherein the second signaling is a DCI.

9. The user equipment according to any of claims 3-8, wherein the second signaling comprises a CRC, which is scrambled by a C-RNTI of the user equipment.

10. The user equipment according to any of claims 3-9, wherein the first signaling is transmitted in the PDCCH.

11. The user equipment according to any of claims 3-10, wherein the second signaling is transmitted in the PDCCH.

12. A base station apparatus used for a variable transmission format, characterized by comprising: