CN108989002B

CN108989002B - Method and device in user equipment and base station used for narrow-band communication

Info

Publication number: CN108989002B
Application number: CN201710406977.7A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2017-06-02
Filing date: 2017-06-02
Publication date: 2021-07-27
Anticipated expiration: 2037-06-02
Also published as: CN108989002A

Abstract

The application discloses a method and a device in a user equipment and a base station used for narrow-band communication. The user equipment firstly receives a first signaling; the first sub-signal is then received. Wherein a time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a special subframe of one TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y TDD special subframes ordered in sequence, the first signaling is used for determining the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1. The method and the device increase the combining gain and improve the coverage performance of transmission.

Description

Method and device in user equipment and base station used for narrow-band communication

Technical Field

The present invention relates to transmission schemes in wireless communication systems, and more particularly, to methods and apparatus in narrowband communication systems.

Background

To meet the requirement of diversified applications of the Internet of Things, a new narrowband wireless access system NB-IoT (Narrow Band Internet of Things) is introduced in 3GPP (3rd Generation Partner Project) Rel-13. In addition to NB-IoT systems, 3GPP is also standardizing the characteristics of emtc (enhanced Machine Type communication). NB-IoT and eMTC are each oriented to different target market needs.

The NB-IoT system of Rel-13 and the eMTC system of Rel-13 are enhanced in 3GPP Rel-14. For NB-IoT, an important enhancement aspect is to give more functions to non-anchor physical resource blocks, such as supporting transmission of paging channel, supporting transmission of random access channel, etc., and introduce the functions of positioning and multicasting. In 3GPP Rel-15, NB-IoT is further enhanced, including reducing power consumption, enhancing measurement accuracy, introducing special scheduling requests and the like. In particular, support for TDD (Time Division Duplex) is also introduced in Rel-15.

Disclosure of Invention

In a TDD NB-IoT system, a complete Downlink subframe available for a data Channel and a Narrowband Physical Downlink Control Channel (NPDCCH) is limited, and thus it is very likely that the data Channel and the narrowband Physical Downlink Control Channel need to be supported to be transmitted by using a TDD special subframe. Because the number of downlink OFDM (Orthogonal Frequency Division Multiplexing) symbols that can be used in the TDD special subframe is smaller than that of the TDD normal subframe, and according to the existing NB-IoT design, one repetition of the data channel or NPDCCH occupies one subframe, a new Resource Mapping (Resource Mapping) is designed during the TDD special subframe transmission.

The present application provides a solution to the resource mapping problem when NB-IoT uses TDD special subframes, and without conflict, the embodiments and features in embodiments in the UE (User Equipment) of the present application may be applied to a 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 application discloses a method in user equipment for wireless communication, which is characterized by comprising the following steps:

-receiving a first signaling;

-receiving a first sub-signal;

wherein a time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a special subframe of one TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y TDD special subframes ordered in sequence, the first signaling is used for determining the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1.

As an embodiment, with the method, when one retransmission of a wireless signal of NB-IoT occupies a special subframe of TDD, the retransmission is punctured according to available resources of the occupied special subframe, and the method has an advantage that compared with the retransmission occupying a normal subframe of TDD, it does not need to change modulation and coding scheme and size of a transport block, and symbol-level combining is supported between multiple retransmissions.

As an embodiment, the advantages of the method include: and changing the punching position of the repeated transmission according to the position of the occupied TDD special subframe in the target subframe pool, thereby dispersing the adverse effect of punching on the whole transmission block, improving the transmission robustness of NB-IoT and further ensuring the coverage performance of TDD NB-IoT.

According to an aspect of the present application, the method is characterized in that the first wireless signal includes K sub-signals, the first sub-signal is one of the K sub-signals, a second sub-signal exists in the first wireless signal in addition to the first sub-signal, the second sub-signal occupies a second subframe in the time domain, the second subframe is a normal subframe of TDD, and K is a positive integer greater than 1.

According to an aspect of the present application, the method is characterized in that time domain resources of the K sub-signals respectively belong to K sub-frames, any two sub-frames of the K sub-frames are different, and one sub-frame other than the K sub-frames belongs to the target sub-frame pool.

According to an aspect of the application, the above method is characterized in that the second sub-signal is generated by X2 bits, the X2 bits belong to the first bit block, the X2 is a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

According to an aspect of the application, the above method is characterized in that the receiver of the first sub-signal assumes that the X1 bits are one transmission of the first block of bits, the receiver of the first sub-signal assuming for the first sub-signal that bits other than the X1 bits in the first block of bits are not received.

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

-receiving information of a first type;

wherein the first type of information is used to determine the time domain resources of the first sub-signal in the first subframe.

The application discloses a method in a base station device for wireless communication, which is characterized by comprising the following steps:

-transmitting first signalling;

-transmitting a first subsignal;

-transmitting information of a first type;

The application discloses user equipment for wireless communication, characterized by, includes:

-a first receiving module receiving a first signaling;

-a second receiving module receiving the first sub-signal;

According to an aspect of the present application, the ue is characterized in that the first radio signal includes K sub-signals, the first sub-signal is one of the K sub-signals, a second sub-signal exists in the first radio signal in addition to the first sub-signal, the second sub-signal occupies a second subframe in a time domain, the second subframe is a normal subframe of TDD, and K is a positive integer greater than 1.

According to an aspect of the present application, the ue is characterized in that the time domain resources of the K sub-signals respectively belong to K subframes, any two subframes of the K subframes are different, and a subframe except the K subframes belongs to the target subframe pool.

According to an aspect of the present application, the above user equipment is characterized in that the second sub-signal is generated by X2 bits, the X2 bits belong to the first bit block, and the X2 is a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

According to an aspect of the application, the above user equipment is characterized in that the receiver of the first sub-signal assumes that the X1 bits are one transmission of the first block of bits, the receiver of the first sub-signal assuming for the first sub-signal that bits other than the X1 bits in the first block of bits are not received.

According to an aspect of the present application, the user equipment as above is characterized in that the first receiving module further receives a first type of information, which is used for determining the time domain resources of the first sub-signal in the first subframe.

The application discloses a base station equipment for wireless communication, characterized by, includes:

-a first sending module to send a first signaling;

-a second transmitting module for transmitting the first subsignal;

According to an aspect of the present application, the base station apparatus is characterized in that the first wireless signal includes K sub-signals, the first sub-signal is one of the K sub-signals, a second sub-signal exists in the first wireless signal in addition to the first sub-signal, the second sub-signal occupies a second subframe in the time domain, the second subframe is a normal subframe of TDD, and K is a positive integer greater than 1.

According to an aspect of the present application, the base station device is characterized in that the time domain resources of the K sub-signals respectively belong to K subframes, any two subframes of the K subframes are different, and one subframe except the K subframes belongs to the target subframe pool.

According to an aspect of the present application, the above base station apparatus is characterized in that the second sub-signal is generated by X2 bits, the X2 bits belong to the first bit block, and the X2 is a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

According to an aspect of the application, the above base station apparatus is characterized in that the receiver of the first sub-signal assumes that the X1 bits are one transmission of the first bit block, the receiver of the first sub-signal assuming for the first sub-signal that bits other than the X1 bits in the first bit block are not received.

According to an aspect of the application, the base station device is characterized in that the first sending module further sends first type information, and the first type information is used for determining the time domain resource of the first sub-signal in the first subframe.

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 a transmission of a first signaling and a first sub-signal according to an embodiment of the application;

figure 2 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 3 shows a schematic diagram of an evolved node device and a given user equipment according to one embodiment of the present application;

FIG. 4 illustrates a wireless signal transmission flow diagram according to one embodiment of the present invention;

FIG. 5 shows a schematic diagram of a first sub-signal according to an embodiment of the invention;

FIG. 6 shows a schematic diagram of a relationship of a first sub-signal to a second sub-signal according to an embodiment of the invention;

FIG. 7 shows a schematic diagram of a pool of target-subframes according to one embodiment of the invention;

FIG. 8 shows a schematic diagram of the relationship of a first sequence and a second sequence according to one embodiment of the invention;

FIG. 9 shows a block diagram of a processing device in a User Equipment (UE) according to an embodiment of the invention;

fig. 10 shows a block diagram of a processing means in a base station according to an embodiment of the invention;

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of transmission of a first signaling and a first sub-signal according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step. In embodiment 1, a user equipment in this application receives a first signaling first and then receives a first sub-signal, where a time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a TDD special subframe, the first sub-signal is generated from X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y sequentially ordered TDD special subframes, the first signaling is used to determine the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1.

As a sub-embodiment, the bits in the first bit Block are sequentially output after a Transport Block (TB) is channel coded.

As a sub-embodiment, the bits in the first bit block are sequentially output after CRC (Cyclic Redundancy Check) addition, Channel Coding (Channel Coding), Rate Matching (Rate Matching), and Concatenation (coordination) of one transmission block.

As a sub-embodiment, the first signaling is physical layer signaling.

As a sub-embodiment, the first signaling is higher layer signaling.

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

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

As a sub-embodiment, the first signaling is transmitted through an NPDCCH (Narrow-band Physical Downlink Control Channel).

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

As a sub-embodiment, the first signaling belongs to SIB2-NB (System Information Block Type 2-Narrow Band, narrowband System Information Block Type 2).

As a sub-embodiment, the first signaling belongs to an IE (Information Element) TDD-Config.

As a sub-embodiment, the first sub-signal is transmitted through a DL-SCH (Downlink Shared Channel).

As a sub-embodiment, the first sub-signal is transmitted through NPDSCH (Narrow band Physical Downlink Shared Channel).

As a sub-embodiment, the first sub-signal is a repeat transmission (Repetition) of the NPDSCH.

As a sub-embodiment, the first sub-signal is transmitted through an NPDCCH (Narrow band Physical Downlink Control Channel).

As a sub-embodiment, the first sub-signal carries DCI (Downlink Control Information).

As a sub-embodiment, the first sub-signal is one repeat transmission of NPDCCH.

As a sub-embodiment, the time domain resource of the first sub-signal occupies all downlink OFDM (Orthogonal Frequency Division Multiplexing) symbols of the first sub-frame.

As a sub-embodiment, the time domain resource of the first sub-signal occupies a downlink OFDM (Orthogonal Frequency Division Multiplexing) symbol of a part of the first sub-frame.

As a sub-embodiment, the X1 bits are consecutively arranged in the first bit block in order of the bits in the first bit block.

As a sub-embodiment, the X1 bits are discretely arranged in the first bit block in the order of the bits in the first bit block.

As a sub-embodiment, the X1 bits are divided into Z1 bits and Z2 bits, both Z1 and Z2 are positive integers, the sum of Z1 and Z2 is equal to the X1, the Z1 bits are sequentially arranged in the first bit block in the order of bits in the first bit block, and the Z2 bits are sequentially arranged in the first bit block in the order of bits in the first bit block.

As a sub-embodiment, the X1 bits respectively go through Scrambling (Scrambling), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation) in sequence to obtain the first sub-signal.

As an additional embodiment of this sub-embodiment, the layer mapper uses layer mapping for a single antenna port, and the precoding uses precoding for a single antenna port.

As another sub-embodiment of the above embodiment, the layer mapper adopts layer mapping of SFBC (Space Frequency Block Code), and the precoding adopts precoding of SFBC (Space Frequency Block Code).

As a sub-embodiment, the position of the X1 bits in the first bit block refers to a set of indices of the X1 bits in the first bit block, respectively.

As a sub-embodiment, the position of the X1 bits in the first bit block refers to a Redundancy Version (Redundancy Version) to which the first sub-signal belongs.

As a sub-embodiment, the X1 bits are consecutively arranged in the first bit block in order of bits in the first bit block, and the position of the X1 bits in the first bit block refers to an index of a starting bit of the X1 bits in the first bit block.

As a sub-embodiment, the X1 bits are consecutively arranged in the first bit block in order of bits in the first bit block, and the position of the X1 bits in the first bit block refers to an index of a last bit of the X1 bits in the first bit block.

As a sub-embodiment, the target subframe pool includes all TDD special subframes within a given time window.

As an auxiliary embodiment of the sub-embodiment, the given time window is a Radio Frame (Radio Frame).

As an auxiliary embodiment of the sub-embodiment, the given time window is a radio superframe (Hyper Frame).

As an auxiliary embodiment of this sub-embodiment, the given time window is a Modification Period (Modification Period) of SIB 2-NB.

As a sub-embodiment, only TDD special subframes required for transmission of a first wireless signal including the first sub-signal are included in the pool of target subframes.

As a sub-embodiment, the first signaling is used by the user equipment to determine the target-subframe pool.

As a sub-embodiment, the first signaling indicates the target-subframe pool.

Example 2

Embodiment 2 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. 2. Fig. 2 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane and the control plane, fig. 2 showing the radio protocol architecture for the User Equipment (UE) and the base station equipment (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 201. Layer 2(L2 layer) 205 is above PHY201 and is responsible for the link between the UE and the eNB through PHY 201. In the user plane, the L2 layer 205 includes a MAC (Medium Access Control) sublayer 202, an RLC (Radio Link Control) sublayer 203, and a PDCP (Packet Data Convergence Protocol) sublayer 204, which terminate at an eNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 205, including a network layer (e.g., IP layer) that terminates at the P-GW 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 204 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 204 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 203 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 202 provides multiplexing between logical and transport channels. The MAC sublayer 202 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 202 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 201 and the L2 layer 205, but without header compression functions for the control plane. The Control plane also includes a RRC (Radio Resource Control) sublayer 206 in layer 3 (layer L3). The RRC sublayer 206 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. 2 is applicable to the user equipment in the present application.

As a sub-embodiment, the radio protocol architecture in fig. 2 is applicable to the base station apparatus in the present application.

As a sub-embodiment, the first signaling in this application is generated in the PHY 201.

As a sub-embodiment, the first signaling in this application is generated in the RRC 206.

As a sub-embodiment, the first type information in the present application is generated in the RRC 206.

As a sub-embodiment, the first wireless signal in the present application is generated in the MAC sublayer 202.

As a sub-embodiment, the first sub-signal in the present application is generated in the PHY 201.

As a sub-embodiment, the second sub-signal in the present application is generated in the PHY 201.

As a sub-embodiment, the reference sequence in this application is generated in the PHY 201.

As a sub-embodiment, the first sequence in this application is generated in the PHY 201.

As a sub-embodiment, the second sequence in this application is generated in the PHY 201.

Example 3

Embodiment 3 shows a schematic diagram of an evolved node and a given user equipment according to the present application, as shown in fig. 3. Fig. 3 is a block diagram of an eNB310 in communication with a UE350 in an access network. In the DL (Downlink), upper layer packets from the core network are provided to the controller/processor 340. Controller/processor 340 implements the functionality of layer L2. In the DL, the controller/processor 340 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the UE350 based on various priority metrics. The controller/processor 340 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the UE 350. The transmit processor 315 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 UE350 and mapping to signal constellation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)). The coded and modulated symbols are then split into parallel streams. Each stream is then mapped to multi-carrier subcarriers, multiplexed with reference signals (e.g., pilots) in the time and/or frequency domain, and then combined together using an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The parallel streams are spatially pre-decoded to produce a plurality of spatial streams. Each spatial stream is then provided to a different antenna 320 via a transmitter 316. Each transmitter 316 modulates an RF carrier with a respective spatial stream for transmission. At the UE350, each receiver 356 receives a signal through its respective antenna 360. Each receiver 356 recovers information modulated onto an RF carrier and provides the information to receive processor 352. The receive processor 352 implements various signal processing functions of the L1 layer. The receive processor 352 performs spatial processing on the information to recover any spatial streams destined for the UE 350. Receive processor 352 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 310. The soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted by the eNB310 on the physical channel. The data and control signals are then provided to a controller/processor 390. Controller/processor 390 implements the L2 layer. The controller/processor can be associated with a memory 380 that stores program codes and data. Memory 380 may be referred to as a computer-readable medium.

As a sub-embodiment, the UE350 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, the UE350 apparatus at least: receiving a first signaling and receiving a first sub-signal; the time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a special subframe of a TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y TDD special subframes ordered in sequence, the first signaling is used to determine the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1.

As a sub-embodiment, the UE350 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: and receiving the first signaling and receiving the first sub-signal. The time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a special subframe of a TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y TDD special subframes ordered in sequence, the first signaling is used to determine the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1.

As a sub-embodiment, the eNB310 apparatus 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. The eNB310 apparatus at least: receiving a first signaling and receiving a first sub-signal; the time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a special subframe of a TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y TDD special subframes ordered in sequence, the first signaling is used to determine the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1.

As a sub-embodiment, the eNB310 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first signaling and receiving a first sub-signal; the time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a special subframe of a TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y TDD special subframes ordered in sequence, the first signaling is used to determine the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1.

As a sub-embodiment, the UE350 corresponds to the UE in the present application.

As a sub-embodiment, the eNB310 corresponds to the base station in this application.

As a sub-embodiment, at least one of the receive processor 352 and the controller/processor 390 is configured to receive the first signaling in the present application.

As a sub-embodiment, the controller/processor 390 is configured to receive the first type of information in the present invention.

As a sub-embodiment, the receiving processor 352 is configured to receive the first sub-signal in this application.

Example 4

Embodiment 4 illustrates a wireless signal transmission flow chart according to an embodiment of the present invention, as shown in fig. 4. In fig. 4, base station N1 is the serving cell maintaining base station for UE U2.

For theBase station N1The first type information is transmitted in step S11, the first signaling is transmitted in step S12, and the first sub-signal is transmitted in step S13.

For theUE U2The first type information is received in step S21, the first signaling is received in step S22, and the first sub-signal is received in step S23.

In embodiment 4, the time domain resources of the first sub-signal belong to a first subframe, the first subframe is a TDD special subframe, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, the position of the X1 bits in the first bit block is related to the position of the first subframe in a target subframe pool, the target subframe pool includes Y sequentially ordered TDD special subframes, the first signaling is used to determine the target subframe pool, the X1 is a positive integer, the Y is an integer greater than 1, and the first type information is used to determine the time domain resources of the first sub-signal in the first subframe.

As a sub-embodiment, the first wireless signal includes K sub-signals, the first sub-signal is one of the K sub-signals, a second sub-signal exists in the first wireless signal in addition to the first sub-signal, the second sub-signal occupies a second subframe in the time domain, the second subframe is a normal subframe of TDD, and K is a positive integer greater than 1.

As a sub-embodiment, the time domain resources of the K sub-signals respectively belong to K sub-frames, any two sub-frames of the K sub-frames are different, and a sub-frame other than the K sub-frames belongs to the target sub-frame pool.

As a sub-embodiment, the second sub-signal is generated from X2 bits, the X2 bits belong to the first bit block, the X2 is a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

As a sub-embodiment, the receiver of the first sub-signal assumes that the X1 bits are one transmission of the first block of bits, the receiver of the first sub-signal assuming for the first sub-signal that bits other than the X1 bits in the first block of bits are not transmitted.

As a sub-embodiment, the first type of information is higher layer information.

As a sub-embodiment, the first type of information is carried by RRC (Radio Resource Control) signaling.

As a sub-embodiment, the first type of Information is transmitted via SIB (System Information Block).

As a sub-embodiment, the first Type of Information belongs to SIB2-NB (System Information Block Type 2-Narrow Band, narrowband System Information Block Type 2).

As a sub-embodiment, the first type of Information belongs to an IE (Information Element) TDD-Config.

Example 5

Embodiment 5 illustrates a schematic diagram of a first sub-signal according to an embodiment of the present invention, as shown in fig. 5. In fig. 5, the horizontal axis represents time, the diagonal filled rectangles represent the first sub-signals, the dotted unfilled rectangles represent the first bit block, and subframe # i is one TDD special subframe other than the first subframe.

In embodiment 5, the time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a TDD special subframe, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, and the target subframe pool includes Y sequentially ordered TDD special subframes.

As a sub-embodiment, bits other than the X1 bits in the first bit block for the first sub-signal are punctured (punture).

As a sub-embodiment, the bits other than the X1 bits in the first bit block for the first sub-signal are discarded (Drop).

Example 6

Embodiment 6 illustrates a schematic diagram of the relationship of the first sub-signal and the second sub-signal according to an embodiment of the present invention, as shown in fig. 6. In fig. 6, the horizontal axis represents time, the rectangles filled with oblique lines represent the first sub-signal, the rectangles filled with cross lines represent the second sub-signal, each of the rectangles filled with thick lines represents a subframe, the downlink normal subframe is identified by D, the uplink normal subframe is identified by U, and the downlink portion in the special subframe is identified by DwPTS.

In embodiment 6, the first wireless signal includes K sub-signals, the first sub-signal is one of the K sub-signals, a time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a special subframe of TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, a second sub-signal exists in the first wireless signal besides the first sub-signal, the second sub-signal occupies a second subframe in a time domain, the second subframe is a normal subframe of TDD, and K is a positive integer greater than 1.

As a sub-embodiment, the first wireless signal carries only one transport block.

As a sub-embodiment, the first radio signal is transmitted through a DL-SCH (Downlink Shared Channel).

As a sub-embodiment, the first radio signal is transmitted through NPDSCH (Narrow band Physical Downlink Shared Channel).

As a sub-embodiment, the first wireless signal is K repeated transmissions (repetitions) of NPDSCH.

As a sub-embodiment, the first wireless signal is transmitted through a NPDCCH (Narrow band Physical Downlink Control Channel).

As a sub-embodiment, the first wireless signal carries DCI (Downlink Control Information).

As a sub-embodiment, the first wireless signal is K repeated transmissions of NPDCCH.

As a sub-embodiment, the first wireless signal only carries a first transport block, and bits in the first bit block are sequentially output after the first transport block is subjected to channel coding.

As a sub-embodiment, the first wireless signal only carries a first transmission block, and bits in the first bit block are sequentially output after CRC (Cyclic Redundancy Check) addition, Channel Coding (Channel Coding), Rate Matching (Rate Matching), and Concatenation (Concatenation) of the first transmission block.

As a sub-embodiment, the resource occupied by any one of the K sub-signals in the time domain is not more than one sub-frame.

As a sub-embodiment, a resource occupied by any one of the K sub-signals in the time domain is not greater than one sub-frame, and the sub-frames to which the K sub-signals respectively belong in the time domain are consecutive.

As a sub-embodiment, a resource occupied by any one of the K sub-signals in the time domain is not greater than one sub-frame, and the sub-frames to which the K sub-signals respectively belong in the time domain are discrete.

As a sub-embodiment, the RV of the first sub-signal and the RV of the second sub-signal are different.

As a sub-embodiment, the RV of the first sub-signal and the RV of the second sub-signal are the same.

Example 7

Embodiment 7 illustrates a schematic diagram of a target-subframe pool according to an embodiment of the present invention, as shown in fig. 7. In fig. 7, the horizontal axis represents time, a rectangle denoted by D represents a normal downlink subframe of TDD, a rectangle denoted by U represents a normal uplink subframe of TDD, DwPTS represents a downlink portion in a special subframe, a rectangle filled with oblique lines represents a first radio signal, and thick TDD special subframes constitute a target subframe pool.

In embodiment 7, the first wireless signal includes K sub-signals, where K is a positive integer greater than 1, time domain resources of the K sub-signals respectively belong to K subframes, any two subframes of the K subframes are different, and a subframe other than the K subframes belongs to the target subframe pool.

As a sub-embodiment, the first wireless signal comprises only the K sub-signals.

As a sub-embodiment, the time domain resources in a subframe other than the K subframes are scheduled to be occupied by wireless signals other than the first wireless signal.

As a sub-embodiment, the time domain resources in a subframe other than the K subframes are not scheduled.

As a sub-embodiment, the time domain resource in a subframe other than the K subframes is an idle resource.

As a sub-embodiment, a Subframe other than the K subframes is an Invalid Subframe (Invalid Subframe).

Example 8

Embodiment 8 illustrates a schematic diagram of the relationship of the first sequence and the second sequence according to an embodiment of the present invention, as shown in fig. 8. In fig. 8, each small box represents one bit. In embodiment 8, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further comprises bits other than the X1 bits, the second sub-signal is generated by X2 bits, the X2 bits belong to the first bit block, the X2 is a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

As a sub-embodiment, the reference sequence is a pseudo-random sequence.

As a sub-embodiment, the reference sequence is a Gold sequence.

As a sub-embodiment, the X2 is greater than the X1.

As a sub-embodiment, the X2 bits are located in the first bit block differently than the X1 bits are located in the first bit block.

As a sub-embodiment, the length of the reference sequence is equal to the number of bits in the first bit block.

As a sub-embodiment, the X2 bits respectively go through Scrambling (Scrambling), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation) in sequence to obtain the second sub-signal.

As a sub-embodiment, the elements in the reference sequence are in one-to-one correspondence with the bits in the first bit block, the first sequence is composed of the elements in the reference sequence corresponding to the X1 bits in turn, and the second sequence is composed of the elements in the reference sequence corresponding to the X2 bits in turn.

As a sub-embodiment, the first sequence is composed of a given set of elements in the reference sequence in order.

As a sub-embodiment, the second sequence is composed of a given set of elements in the reference sequence in order.

As a sub-embodiment, the length of the first sequence is equal to the X1.

As a sub-embodiment, the length of the second sequence is equal to the X2.

As a sub-embodiment, the position of the first sequence in the reference sequence and the position of the X1 bits in the first bit block are the same in a one-to-one correspondence.

As a sub-embodiment, the positions of the second sequence in the reference sequence and the positions of the X2 bits in the first bit block are the same in a one-to-one correspondence.

As a sub embodiment, one of { the time domain position of the first subframe, the time domain position of the second subframe } is determined by the user equipment the initial value of the generator of the reference sequence.

As a sub-embodiment, the generator of the reference sequence is initialized at the start time of the first sub-frame.

As a sub-embodiment, the generator of the reference sequence is initialized at the start time of the second sub-frame.

Example 9

Embodiment 9 is a block diagram illustrating a processing apparatus in a user equipment, as shown in fig. 9. In fig. 9, the ue processing apparatus 900 mainly comprises a first receiving module 901 and a second receiving module 902.

In embodiment 9, the first receiving module 901 receives a first signaling; the second receiving module 902 receives the first sub-signal; the time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a special subframe of a TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y TDD special subframes ordered in sequence, the first signaling is used to determine the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1.

As a sub-embodiment, a first wireless signal includes K sub-signals, the first sub-signal is one of the K sub-signals, a second sub-signal exists in the first wireless signal besides the first sub-signal, the second sub-signal occupies a second subframe in a time domain, the second subframe is a normal subframe of TDD, K is a positive integer greater than 1, time domain resources of the K sub-signals respectively belong to K subframes, any two subframes of the K subframes are different, and one subframe except the K subframes belongs to the target subframe pool.

As a sub-embodiment, a first wireless signal includes K sub-signals, the first sub-signal is one of the K sub-signals, a second sub-signal exists in the first wireless signal in addition to the first sub-signal, the second sub-signal occupies a second subframe in a time domain, the second subframe is a normal subframe of TDD, K is a positive integer greater than 1, time domain resources of the K sub-signals respectively belong to K subframes, any two subframes of the K subframes are different, one subframe except the K subframes belongs to the target subframe pool, the second sub-signal is generated by X2 bits, the X2 bits belong to the first bit block, and X2 is a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

As a sub-embodiment, the receiver of the first sub-signal assumes that the X1 bits are one transmission of the first block of bits, the receiver of the first sub-signal assuming for the first sub-signal that bits other than the X1 bits in the first block of bits are not received.

As a sub-embodiment, the first receiving module 901 further receives a first type of information, which is used for determining the time domain resources of the first sub-signal in the first subframe.

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, a base station processing apparatus 1000 is mainly composed of a first transmitting module 1001 and a second transmitting module 1002.

In embodiment 10, a first transmission module 1001 transmits a first signaling; the second sending module 1002 sends the first sub-signal; the time domain resource of the first sub-signal belongs to a first subframe, the first subframe is a special subframe of a TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y TDD special subframes ordered in sequence, the first signaling is used to determine the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1.

As a sub-embodiment, the first transmitting module 1001 further transmits a first type of information, which is used to determine the time domain resources of the first sub-signal in the first subframe.

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 computer, a network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle-mounted communication equipment and the like. The base station or the network side 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, an eNB, a gNB, a transmission and reception node TRP, 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 user equipment for wireless communication, comprising:

-receiving information of a first type;

-receiving a first signaling;

-receiving a first sub-signal;

wherein time domain resources of the first sub-signal belong to a first subframe, the first subframe is a special subframe of one TDD, the first sub-signal is generated by X1 bits, the X1 bits belong to a first bit block, the first bit block further includes bits other than the X1 bits, a position of the X1 bits in the first bit block is related to a position of the first subframe in a target subframe pool, the target subframe pool includes Y sequentially ordered TDD special subframes, the first signaling is used to determine the target subframe pool, X1 is a positive integer, and Y is an integer greater than 1; the first type of information is used to determine the time domain resources of the first sub-signal in the first subframe.

2. The method of claim 1, wherein a first wireless signal comprises K sub-signals, wherein the first sub-signal is one of the K sub-signals, wherein a second sub-signal exists in the first wireless signal in addition to the first sub-signal, wherein the second sub-signal occupies a second subframe in a time domain, wherein the second subframe is a normal subframe of TDD, and wherein K is a positive integer greater than 1.

3. The method according to claim 2, wherein the time domain resources of the K sub-signals belong to K sub-frames respectively, any two sub-frames of the K sub-frames are different, and one sub-frame other than the K sub-frames belongs to the target sub-frame pool.

4. The method according to any of claims 2 or 3, wherein the second sub-signal is generated from X2 bits, the X2 bits belonging to the first bit block, the X2 being a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

5. The method according to any of claims 1 to 4, wherein a receiver of the first sub-signal assumes that the X1 bits are one transmission of the first block of bits, the receiver of the first sub-signal assuming for the first sub-signal that bits other than the X1 bits in the first block of bits are not transmitted.

6. A method in a base station device for wireless communication, comprising:

-transmitting information of a first type;

-transmitting first signalling;

-transmitting a first subsignal;

7. The method of claim 6, wherein a first wireless signal comprises K sub-signals, the first sub-signal is one of the K sub-signals, a second sub-signal exists in the first wireless signal in addition to the first sub-signal, the second sub-signal occupies a second subframe in time domain, the second subframe is a normal subframe of TDD, and K is a positive integer greater than 1.

8. The method according to claim 7, wherein the time domain resources of the K sub-signals belong to K sub-frames respectively, any two sub-frames of the K sub-frames are different, and one sub-frame other than the K sub-frames belongs to the target sub-frame pool.

9. The method according to any of claims 7 or 8, wherein the second sub-signal is generated from X2 bits, the X2 bits belonging to the first bit block, the X2 being a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

10. The method according to any of claims 6 to 9, wherein a receiver of the first sub-signal assumes that the X1 bits are one transmission of the first block of bits, the receiver of the first sub-signal assuming for the first sub-signal that bits other than the X1 bits in the first block of bits are not transmitted.

11. A user device for wireless communication, comprising:

-a first receiving module for receiving a first type of information, receiving a first signaling;

-a second receiving module receiving the first sub-signal;

12. The UE of claim 11, wherein a first wireless signal comprises K sub-signals, the first sub-signal is one of the K sub-signals, a second sub-signal exists in the first wireless signal in addition to the first sub-signal, the second sub-signal occupies a second subframe in time domain, the second subframe is a normal subframe of TDD, and K is a positive integer greater than 1.

13. The UE of claim 12, wherein the time domain resources of the K sub-signals belong to K sub-frames respectively, any two sub-frames of the K sub-frames are different, and one sub-frame other than the K sub-frames belongs to the target sub-frame pool.

14. The user equipment as claimed in claim 12 or 13, wherein the second sub-signal is generated by X2 bits, the X2 bits belong to the first bit block, the X2 is a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

15. The user equipment of any of claims 11 through 14 wherein the receiver of the first sub-signal assumes that the X1 bits are one transmission of the first block of bits and that the receiver of the first sub-signal assumes for the first sub-signal that bits other than the X1 bits in the first block of bits are not transmitted.

16. A base station apparatus for wireless communication, comprising:

-a first sending module for sending a first type of information, sending a first signaling;

-a second transmitting module for transmitting the first subsignal;

17. The base station apparatus of claim 16, wherein a first wireless signal comprises K sub-signals, the first sub-signal is one of the K sub-signals, a second sub-signal exists in the first wireless signal in addition to the first sub-signal, the second sub-signal occupies a second subframe in time domain, the second subframe is a normal subframe of TDD, and K is a positive integer greater than 1.

18. The base station device according to claim 17, wherein the time domain resources of the K sub-signals belong to K subframes respectively, any two subframes in the K subframes are different, and one subframe other than the K subframes belongs to the target subframe pool.

19. The base station device of claim 17 or 18, wherein the second sub-signal is generated by X2 bits, wherein the X2 bits belong to the first bit block, wherein X2 is a positive integer; a first subsequence is used for said X1 bits of scrambling code and a second subsequence is used for said X2 bits of scrambling code, both said first and second subsequences being obtained from a reference sequence, an initial value of a generator of said reference sequence being related to one of { a time domain position of said first subframe, a time domain position of said second subframe }.

20. The base station device according to any of claims 16 to 19, characterized in that a receiver of said first sub-signal assumes that said X1 bits are one transmission of said first block of bits, said receiver of said first sub-signal assuming for said first sub-signal that bits other than said X1 bits in said first block of bits are not transmitted.