WO2017162194A1

WO2017162194A1 - Method and device for transmitting information, and storage medium

Info

Publication number: WO2017162194A1
Application number: PCT/CN2017/077935
Authority: WO
Inventors: 张雯; 夏树强; 戴博; 石靖; 梁春丽; 韩祥辉; 张文峰
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-03-23
Filing date: 2017-03-23
Publication date: 2017-09-28

Abstract

Disclosed are a method and device for transmitting information, and a storage medium. The method comprises: determining N transmission units for bundling transmission; and transmitting information over the N transmission units. Each transmission unit comprises one or more transmission blocks, and the transmission block supports self-decoding. The information transmitted by all the transmission units is the same.

Description

Method and device for transmitting information, storage medium

Technical field

The present disclosure relates to wireless communication technologies, and in particular, to a method and apparatus for transmitting information, and a storage medium.

Background technique

The rapid development of the mobile Internet and the Internet of Things has led to explosive growth in data traffic and the emergence of diversified and differentiated services. As a new generation of mobile communication technology, 5G will support higher speed (Gbps), massive link (1M/Km2), ultra-low latency (1ms), higher reliability, and 100 times energy efficiency improvement. Support new changes in demand. Among them, ultra-low latency is a key indicator of 5G technology, which directly affects the development of time-limited services such as car networking, industrial automation, remote control, and smart grid. A series of current standards for 5G delay reduction are gradually being advanced.

Transmission Time Interval (TTI) is an important research direction for reducing the current delay. It aims to reduce the current TMS length of 1ms to 0.5ms or even 1-2 orthogonal frequency division multiplexing (OFDM, Orthogonal Frequency Division). Multiplexing) The length of the symbol is reduced by a minimum of the minimum scheduling time, and the single transmission delay can be reduced by multiple times without changing the frame structure. How to design an effective transmission method to reduce the transmission delay is a problem to be solved.

Summary of the invention

To solve the above technical problem, an embodiment of the present disclosure provides a method and apparatus for transmitting information, and a storage medium.

The method for transmitting information provided by the embodiment of the present disclosure includes:

Determining N transmission units of the bundle transmission, where N>1;

Transmitting information on the N transmission units;

The transmission time corresponding to the i-th transmission unit is Mi symbols, i and Mi are positive integers, and 1≤i≤N.

In an embodiment of the present disclosure, each of the transmission units includes more than one transport block, and the transport block supports self-decoding or needs to be combined with other transport blocks for decoding.

In the embodiment of the present disclosure, the information transmitted by each of the transmission units is the same.

In the embodiment of the disclosure, the determining the N transmission units of the bundle transmission includes:

Determining at least one of the following information according to a preset operation and/or a notification message of the base station:

Transmitting, by the bundle, the number of corresponding transmission units;

Modulation and Coding Scheme (MCS) of each of the transmission units;

Redundant version of each of the transmission units (RV, Redundancy Version);

The transmission time corresponding to each of the transmission units;

a frequency domain resource corresponding to each of the transmission units;

The bundle transmits a corresponding reference signal.

In an embodiment of the disclosure, the method further includes: determining, according to at least one of the following, a reference signal corresponding to the bundle transmission:

The number of symbols corresponding to the bundle transmission, the number of transmission units corresponding to the bundle transmission, the type of the terminal, and the operation mode of the terminal.

In the embodiment of the disclosure, the transmitting information on the N transmission units includes: performing bundle transmission by using one of the following methods:

Puncturing the resource corresponding to the SRS bandwidth on the SRS (Sounding Reference Signal) symbol;

Rate matching on resources other than the SRS bandwidth on the SRS symbol;

Skip the SRS symbol for transmission.

Puncturing a resource corresponding to a physical downlink control channel (PDCCH) (Physical Downlink Control Channel) symbol;

Rate matching on resources other than the PDCCH symbol;

The PDCCH symbol is skipped for transmission.

In an embodiment of the disclosure, the method further includes: not transmitting feedback information.

In an embodiment of the disclosure, the method further includes:

Whether to transmit feedback information is determined according to a preset operation and/or a notification message of the base station.

In the embodiment of the present disclosure, determining whether to transmit feedback information according to a preset operation includes:

Determine whether to transmit feedback information according to at least one of the following:

Transmitting, by the bundle, the number of corresponding transmission units;

The transmission time corresponding to the transmission unit;

The MCS corresponding to the transmission unit;

The frequency domain resource corresponding to the transmission unit.

In the embodiment of the present disclosure, the scheduling information corresponding to the bundle transmission is transmitted after the start symbol of the bundle transmission.

In the embodiment of the present disclosure, the scheduling information corresponding to the bundle transmission is transmitted on one transmission unit or between two transmission units.

In the embodiment of the disclosure, the N transmission units that perform the bundle transmission correspond to one scheduling information, or each of the transmission units corresponds to one scheduling information.

In the embodiment of the present disclosure, the bundle transmission is frequency-hopped transmission according to a specified pattern.

In the embodiment of the present disclosure, the transmission time corresponding to the partial transmission unit or all the transmission units of the N transmission units is 1 symbol.

In an embodiment of the present disclosure, the code rate of the transmission unit satisfies a specified threshold requirement.

In the embodiment of the present disclosure, the meeting meets the specified threshold requirement, including one of the following:

The code rate of each transmission unit meets the specified threshold requirement;

The code rate of the first transmission unit meets the specified threshold requirement;

The code rate of the first n transmission units satisfies the specified threshold requirement, where n ≤ N.

In the embodiment of the present disclosure, the code rate is less than or equal to 0.931 or less than or equal to 0.93 or less than or equal to 1.

The device for transmitting information provided by the embodiment of the present disclosure includes:

Determining a unit, configured to determine N transmission units of the bundle transmission, where N>1;

a transmission unit configured to transmit information on the N transmission units;

In the embodiment of the present disclosure, the determining unit is further configured to: determine, according to the preset operation and/or the notification message of the base station, at least one of the following information: the number of the transmission units corresponding to the bundle transmission; each of the The MCS of the transmission unit; the RV of each of the transmission units; the transmission time corresponding to each of the transmission units; the frequency domain resource corresponding to each of the transmission units; and the bundled transmission corresponding reference signal.

In the embodiment of the present disclosure, the determining unit is further configured to determine, according to at least one of the following, a reference signal corresponding to the bundle transmission: a number of symbols corresponding to the bundle transmission, a number of transmission units corresponding to the bundle transmission, The type of terminal and the working mode of the terminal.

In the embodiment of the present disclosure, the transmitting unit is further configured to perform bundle transmission on the cell-specific SRS subframe by using one of the following methods: on the resource corresponding to the SRS bandwidth on the SRS symbol. Puncturing transmission; rate matching on resources other than the SRS bandwidth on the SRS symbol; skipping the SRS symbol for transmission.

In the embodiment of the disclosure, the transmission unit is further configured to perform bundle transmission in one of the following manners:

Puncturing transmission on a resource corresponding to the PDCCH symbol;

Rate matching on resources other than the PDCCH symbol;

The PDCCH symbol is skipped for transmission.

In the embodiment of the present disclosure, the determining unit is further configured to determine whether to transmit the feedback information according to the preset operation and/or the notification message of the base station.

In the embodiment of the present disclosure, the determining unit is further configured to: determine whether to transmit feedback information according to at least one of: a number of transmission units corresponding to the bundle transmission; a transmission time corresponding to the transmission unit; the transmission unit Corresponding MCS; a frequency domain resource corresponding to the transmission unit.

The storage medium provided by the embodiment of the present disclosure stores a computer program configured to execute the above method of transmitting information.

In the technical solution of the embodiment of the present disclosure, N transmission units for bundle transmission are determined, and information is transmitted on the N transmission units; each of the transmission units includes one or more transport blocks, and the transport block supports self-decoding. The information transmitted by each of the transmission units is the same. The method of transmitting information proposed by the embodiments of the present disclosure can effectively reduce the transmission delay.

DRAWINGS

FIG. 1 is a schematic flowchart diagram of a method for transmitting information according to an embodiment of the present disclosure;

2 is a schematic diagram 1 of a bundle transmission according to Embodiment 1 of the present disclosure;

3 is a schematic diagram 2 of a bundle transmission according to Embodiment 1 of the present disclosure;

4 is a schematic diagram 3 of a bundle transmission according to Embodiment 1 of the present disclosure;

5 is a schematic diagram 4 of a bundle transmission according to Embodiment 1 of the present disclosure;

6 is a schematic diagram 1 of a bundle transmission according to Embodiment 2 of the present disclosure;

FIG. 7 is a schematic diagram 2 of a bundle transmission according to Embodiment 2 of the present disclosure;

8 is a schematic diagram 1 of a bundle transmission according to Embodiment 3 of the present disclosure;

9 is a schematic diagram 2 of a bundle transmission according to Embodiment 3 of the present disclosure;

10 is a schematic diagram 3 of a bundle transmission according to Embodiment 3 of the present disclosure;

FIG. 11 is a schematic structural diagram of an apparatus for transmitting information according to an embodiment of the present disclosure.

detailed description

The embodiments of the present disclosure are described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic flowchart of a method for transmitting information according to an embodiment of the present disclosure. As shown in FIG. 1 , the method for transmitting information includes the following steps:

Step 101: Determine N transmission units of the bundle transmission.

Here, N>1.

In the embodiment of the present disclosure, the N transmission units that are bundled and transmitted refer to: N transmission units need to be transmitted together when transmitting, for example, A, B, and C are three transmission units, and bundle transmission is to transmit A, B, and C together. These three transmission units, instead of splitting A, B, and C separately, are transmitted separately.

In the embodiment of the present disclosure, each of the transmission units includes more than one transport block, and the transport block supports self-decoding or needs to be combined with other transport blocks for decoding, and the transport block may also be referred to as a codeword. Here, one or more transport blocks refer to: one transport block or more than two transport blocks.

In the embodiment of the present disclosure, the original information corresponding to each transmission unit may be the same or different. Here, the original information refers to information before modulation coding. In an embodiment, the original information corresponding to the transmission unit is the same, that is, the information transmitted by each of the transmission units is the same.

Transmitting, by the bundle, the number of corresponding transmission units;

The MCS of each of the transmission units;

RV of each of said transmission units;

The transmission time corresponding to each of the transmission units;

a frequency domain resource corresponding to each of the transmission units;

The bundle transmits a corresponding reference signal.

In an embodiment, at least one of the following information is determined according to a preset operation: a number of transmission units corresponding to the bundle transmission, an MCS of each of the transmission units, an RV of each of the transmission units, and each a transmission time corresponding to the transmission unit, a frequency domain resource corresponding to each of the transmission units, and a reference signal corresponding to the bundle transmission.

In another embodiment, at least one of the following information is determined according to the notification message of the base station: the number of transmission units corresponding to the bundle transmission, the MCS of each of the transmission units, and the RV of each of the transmission units And a transmission time corresponding to each of the transmission units, a frequency domain resource corresponding to each of the transmission units, and a reference signal corresponding to the bundle transmission.

In another embodiment, the first part information in the following information is determined according to the preset operation, and the second part information of the following information is determined according to the notification message of the base station: the number of the transmission units corresponding to the bundle transmission, each The MCS of the transmission unit, the RV of each of the transmission units, the transmission time corresponding to each of the transmission units, the frequency domain resource corresponding to each of the transmission units, and the reference signal corresponding to the bundle transmission. The first partial information and the second partial information may be one information, or may be two or more pieces of information.

In the embodiment of the present disclosure, the RV of each transmission unit may be the same or different. The transmission time of each transmission unit may be the same or different.

Step 102: Transmitting information on the N transmission units.

Here, the transmission time corresponding to the i-th transmission unit is Mi symbols, i and Mi are positive integers, and 1≤i≤N.

In the embodiment of the present disclosure, after determining N transmission units of the bundle transmission, information is transmitted on the N transmission units, that is, bundle transmission is performed on the N transmission units.

In an embodiment, the N transmission units are bundled and transmitted in one of the following manners:

Puncturing transmission on a resource corresponding to the SRS bandwidth on the SRS symbol;

Rate matching on resources other than the SRS bandwidth on the SRS symbol;

Skip the SRS symbol for transmission.

In another embodiment, the N transmission units are bundled and transmitted in one of the following manners:

Puncturing transmission on a resource corresponding to the PDCCH symbol;

Rate matching on resources other than the PDCCH symbol;

The PDCCH symbol is skipped for transmission.

In another embodiment of the present disclosure, feedback information is not transmitted.

In an embodiment of the present disclosure, whether to transmit feedback information is determined according to a preset operation and/or a notification message of the base station.

Transmitting, by the bundle, the number of corresponding transmission units;

The transmission time corresponding to the transmission unit;

The MCS corresponding to the transmission unit;

The frequency domain resource corresponding to the transmission unit.

In the embodiment of the present disclosure, the scheduling information corresponding to the bundle transmission is in the bundle transmission. Transfer after the start symbol.

In the above solution, the code rate of the transmission unit satisfies a specified threshold requirement.

The meeting meets the specified threshold requirements, including one of the following:

In the above solution, the code rate is less than or equal to 0.931 or less than or equal to 0.93 or less than or equal to 1.

The method for transmitting information in the embodiment of the present disclosure will be described in detail below in conjunction with specific implementation scenarios.

Embodiment 1

This embodiment is described by taking uplink information as an example. The method for transmitting information may be used for uplink or downlink.

As shown in FIG. 2, the information transmitted in this embodiment is uplink information, and the uplink information may be uplink data or uplink control information. The symbol 0 (i.e., the symbol of the shaded portion) transmits the upstream DMRS, the

symbols

1 and 2 transmit the information, the symbol 1 transmits a transmission unit, and the symbol 2 transmits a transmission unit.

Optionally, each transmission unit can be independently decoded or combined with other transmission units for decoding.

Optionally, the information transmitted by each transmission unit is the same or different.

In the case where the information transmitted by each transmission unit is the same, the evolved base station (eNB, Evolved NodeB) decodes the data if the symbol 1 is received, then there is no need to decode the transmission unit on the symbol 2, thus reducing the information. Transmission delay. In FIG. 2, symbol 1 and symbol 2 can be regarded as one transmission unit, respectively, or symbol 0 and symbol 1 can be regarded as one transmission unit, and symbol 2 can be regarded as another transmission unit. The transmission unit on symbol 2 is also demodulated with the DMRS on symbol 0.

In the embodiment of the present disclosure, the number of the transmission units may be preset, for example, the number of the transmission units is two, or four or other values, or the number of the transmission units may be The eNB notifies the notification, for example, in high-level signaling or Downlink Control Information (DCI). The high layer signaling includes a System Information Block (SIB) and/or a Radio Resource Control (RRC) signaling.

In the embodiment of the present disclosure, the length of time corresponding to each transmission unit may be the same or different, for example, the time of transmission by each transmission unit is 1 symbol. Alternatively, it is also possible that one transmission unit transmits one symbol and the other transmission unit transmits two symbols. Alternatively, a transmission unit may also occupy part of a resource on a symbol, for example, the first transmission unit occupies the second symbol and the third symbol, and the other transmission unit occupies the third symbol and the fourth symbol, in the third On the symbol, the two transmission units are multiplexed, and the multiplexing mode may be at least one of the following methods: time division multiplexing, code division multiplexing, and frequency division multiplexing. The length of time corresponding to each transmission unit is preset, for example, fixed to 1 symbol, or may be notified by the eNB, such as in high layer signaling or DCI. Alternatively, the length of time corresponding to one of the transmission units is notified, and the length of time corresponding to the other transmission units is obtained in a preset manner. For example, the length of time corresponding to the first transmission unit is notified, for example, 1 symbol, and the length of time corresponding to other transmission units is 2 symbols, 3 symbols, and the like.

In the embodiment of the present disclosure, the symbols corresponding to each transmission unit may be temporally continuous or may be discontinuous in time. In an embodiment, the symbol corresponding to each transmission unit is discontinuous in time, for example, the first transmission unit corresponds to the first symbol and the third symbol, and the second transmission unit corresponds to the second symbol and the Four symbols. In another embodiment, the symbol corresponding to each transmission unit is temporally continuous, for example, the first transmission unit corresponds to the first symbol and the second symbol, and the second transmission unit corresponds to the third symbol and the Four symbols.

In the embodiment of the present disclosure, the RV of each transmission unit may be the same or different. For example, in FIG. 2, the RV of the transmission unit on symbol 1 is 0, the RV of the transmission unit on symbol 2 is 2, or the RV of the transmission unit on both symbols is 0. The RV information may be preset, for example, in the order of 0, 2, 3, and 1 cycles, when there are 3 transmission units, the RV is 0, 2, and 3 in sequence. When there are 5 transmission units, the RV is 0, 2, 3, 1, 0 in order. Alternatively, the RV information may be indicated by the eNB by using high layer signaling or DCI.

In the embodiment of the present disclosure, the MCS of each transmission unit may be the same or different. For example, each transmission unit is coded in the same way, but the modulation mode is different, or the modulation and coding methods are different. The MCS information may be preset, such as 1/3 code rate, Quadrature Phase Shift Keying (QPSK) modulation, or eNB notification, such as notification in higher layer signaling or DCI. Or it may be partially preset, and part of it is notified in high-level signaling or DCI. For example, the modulation mode is preset, and the encoding mode is notified. Alternatively, the MCS of one of the transmission units is notified, and the MCSs of the other transmission units are obtained in a preset manner, for example, the MCS of the first transmission unit is notified, and the other transmission units are the same as the MCS of the first transmission unit, or The transmission rate of the other transmission unit is the same as that of the first transmission unit, but the modulation method is reduced according to a preset manner, or is QPSK. For example, the modulation mode of the first transmission unit is 16 Quadrature Amplitude Modulation (QAM), and the modulation mode of the second transmission unit is QPSK.

In the embodiment of the disclosure, the frequency domain resources occupied by each transmission unit may be the same, or Different. For example, the frequency domain resources occupied by each transmission unit are the same. The frequency domain resource may be preset or may be notified by the eNB, such as in high layer signaling or DCI. Or, the frequency domain resource of one of the transmission units is notified, and the frequency domain resources of the other transmission unit and the first transmission unit are obtained according to a preset manner, for example, resource allocation of the frequency domain resource of the first transmission unit in the DCI. The domain informs that the frequency domain of the second transmission unit is x times the frequency domain resource of the first transmission unit, where x is a number greater than one.

Optionally, the bundle transmission may be frequency hopped according to a specified pattern, that is, the bundle transmission may be frequency hopped to increase the frequency diversity gain. For example, the frequency domain resource occupied by the first transmission unit is notified by the eNB in the DCI, and the frequency domain resources occupied by other transmission units are determined according to the specified pattern. Or the frequency domain resource occupied by each transmission unit is determined according to the frequency domain resource and the specified pattern notified by the eNB, and the specified pattern is preset or notified by the eNB. The specified pattern may be hopped according to the transmission unit, or may not be hopped according to the transmission unit, such as symbol hopping.

An example of a DMRS occupying part of the resources is given below, as shown in Figure 3. The DMRS is located on symbol 2 and occupies part of the subcarriers. The

symbols

0, 1, 2, 3, and 4 respectively correspond to one transmission unit, and a total of five transmission units. Alternatively,

symbols

0, 3, and 4 respectively correspond to one transmission unit, and

symbols

1 and 2 correspond to one transmission unit, and a total of four transmission units. In the embodiment of the present disclosure, all transmission units are demodulated using the DMRS on symbol 2.

In the embodiment of the present disclosure, each of the transmission units has corresponding scheduling information, for example, each transmission unit corresponds to one uplink or downlink authorization, corresponding to different DCI, or assumes that there are two levels of DCI, which is slow. DCI and fast DCI, the slow DCI corresponding to each transmission unit is the same, but the corresponding fast DCI is different. Alternatively, scheduling information corresponding to each transmission unit may be transmitted on each transmission unit or on a symbol preceding each transmission unit.

Alternatively, a bundled transmission has only one corresponding upstream or downstream grant. Optionally, the scheduling information of the bundle transmission may also be transmitted multiple times, such as the first symbol in each transmission unit. Or transmit on the last symbol or on the symbol before each transmission unit. Or transfer between every two transmission units.

In the embodiment of the present disclosure, the reference signal is determined according to a preset manner, and may be a DMRS or another reference signal in an actual application, which is not limited herein. Further, the DMRS is determined according to the number of symbols corresponding to the bundle transmission and/or the number of transmission units included in the bundle transmission. For example, the location of the DMRS is one for every three symbols. Then, when one bundle transmission corresponds to three symbols, the first symbol is DMRS, and the latter two symbols correspond to two transmission units. When a bundle transmission corresponds to 5 symbols, the first symbol and the fourth symbol are DMRS, and the second, third, and fifth symbols correspond to 3 transmission units. Alternatively, there is a DMRS on the even transport block and no DMRS on the odd transport block. Further, the DMRS may also be determined according to a type of a UE (User Equipment) and/or a working mode of the UE, where the working mode of the UE includes but is not limited to a high-speed mobile UE and a low-speed mobile UE, and the type of the UE This includes but is not limited to legacy UEs and UEs that support different short TTIs.

In the embodiment of the present disclosure, the DMRS may also be notified by the eNB. For example, for each transmission unit corresponding to one uplink or downlink grant, the DMRS may be notified whether to send the DMRS in the uplink or downlink grant. As shown in FIG. 4, the primary bundle transmission includes 8 symbols, and the number of symbols corresponding to each transmission unit is 2 symbols, and the uplink or downlink grant corresponding to each transmission unit may have 1 bit information to indicate whether the transmission unit is The DMRS is included. As shown in FIG. 4, the DMRS is indicated in the uplink or downlink grant corresponding to the transmission units #0 and #2, and the DMRS is indicated in the uplink or downlink grant corresponding to the transmission units #1 and #3. Alternatively, all transmission units correspond to one uplink or downlink grant, and the number and/or location of the DMRS is notified in the uplink or downlink grant.

In the embodiment of the present disclosure, the corresponding transmission unit of the bundle transmission may be consecutive before, as shown in FIG. 4 . It may also not be continuous, such as one or more symbols, such as transmission unit #0 transmitting on symbol 0 and symbol 1, and transmission unit #1 transmitting on symbol 3 and symbol 4.

In the embodiment of the present disclosure, the receiver may perform feedback on the transmission unit, and may perform decoding on the positive The actual transmission unit and all previous transmission units are fed back, and only the decoded transmission unit can be fed back. For example, as shown in FIG. 4, if the receiver decodes correctly when receiving the transmission unit #1, the receiver feeds back NACK to the transmission unit #0, feeds back the ACK to the transmission unit #1, or only feeds back to the transmission unit #1. ACK.

Alternatively, the receiving party may also not provide feedback, regardless of whether the receiving party receives the correct or not, the sender does not feedback and/or retransmit, or the sender assumes that the receiving party does not feedback and/or retransmit. The delay in data transmission is reduced by this bundled transmission without feedback.

Alternatively, the sender/receiver determines whether to feed back according to a preset manner. Optionally, the sender or the receiver may determine according to the transmission time corresponding to the transmission unit, for example, assume N transmission units bundled for transmission, where N>1, and the transmission time corresponding to the ith transmission unit is Mi symbols. i and Mi are positive integers, and 1 ≤ i ≤ N. When the minimum value of Mi is greater than a certain threshold, the receiver does not feed back, or the sender assumes that the receiver does not feed back. Optionally, the sender or the receiver determines whether to feedback according to the MCS. For example, when the maximum value of the MCS of the transmission unit is greater than a certain threshold or the minimum value is less than a certain threshold, no feedback is provided. Optionally, the sender or the receiver determines whether the feedback is based on the number of transmission units included in the bundle transmission. For example, when the number of transmission units included in the bundle transmission is greater than a certain threshold, no feedback is provided. Optionally, the sender or the receiver determines whether to feed back according to the allocated resources, for example, the minimum value of the allocated resources in the transmission unit is greater than half of the system bandwidth resources, and no feedback is provided. Optionally, whether to feedback is determined according to at least two of the above factors.

Alternatively, the sender or the receiver determines whether to feed back according to the notification of the eNB. For example, a 1-bit indication is used in SIB or RRC signaling, or a 1-bit indication is used in DCI. In the embodiment of the present disclosure, on the cell-specific SRS subframe, the action of the UE is one of: deleting the data on the SRS bandwidth on the SRS symbol, and performing the rate on the resources other than the SRS bandwidth on the SRS symbol. Match and skip SRS symbols for transmission. FIG. 5 shows a schematic diagram in which each transmission unit corresponds to 2 symbols, and the bundle transmission skips the symbol in which the SRS is located for transmission.

Similarly, for the legacy PDCCH region, a similar method is used for bundling transmission, such as The data on the legacy PDCCH symbol is cancelled, or the rate matching is performed on resources other than the legacy PDCCH symbol, or the legacy PDCCH symbol is skipped for transmission.

Optionally, for downlink, the scheduling information of the bundle transmission may be transmitted after the start symbol of the bundle transmission. For example, all transmission units of the bundle transmission contain a total of 8 symbols, and scheduling information can be transmitted on the third symbol, which can increase the buffering and processing speed. Optionally, the scheduling information of the bundle transmission may be transmitted on one symbol of a certain transmission unit or transmitted on a symbol between two transmission units. For example, the first transmission unit occupies symbol 0 and symbol 1. The second transmission unit occupies symbol 3 and symbol 4, and the scheduling information is transmitted on symbol 2. Preferably, the scheduling information is transmitted on the last symbol of the first transmission unit or between the first transmission unit and the second transmission unit.

Preferably, each transmission unit corresponds to one symbol, wherein the DMRS is a symbol outside the transmission unit, or the DMRS is transmitted on all or part of the transmission unit. Each transmission unit determines the RV in a preset manner, such as 0, 2, 3, 1.

Optionally, the allocated minimum resource or resource allocation granularity is determined by the number of symbols and/or modulation order corresponding to the transmission unit. The minimum TBS is 16 bits, plus 24 bits of CRC, a total of 40 bits, the code rate of the UE decodable transport block can not exceed 0.93, then 40 / (resource × modulation order) ≤ 0.93, if a transmission The unit is a symbol. For the uplink, there are 12 REs available in one PRB. If the modulation mode is QPSK, the minimum resource allocated should be 2 PRBs, and the resource allocation granularity can also be 2 PRBs. For the downlink, there are 10 REs available in one PRB, and it is assumed that two REs are REs of the CRS. If the modulation mode is QPSK, the minimum resource allocated should be 3 PRBs, and the resource allocation granularity may also be 3 PRBs. .

Embodiment 2

The embodiment of the present disclosure is similar to the first embodiment. The information transmitted in this embodiment is downlink information. Bundled transmissions include multiple transmission units.

The downlink transmission is similar to the uplink transmission, the number of transmission units, the transmission time, and the transmission unit. Whether the continuity between the transmission units, the RV, the MCS, the frequency domain resource, the scheduling mode, and the determining manner of the DMRS are as shown in the first embodiment.

FIG. 6 shows an example in which the dot portion is a downlink control channel, and the symbol 1, the symbol 2, and the symbol 3 are physical downlink shared channels (PDSCH) of the bundle transmission. Each symbol can correspond to one transmission unit. The area of the downlink control channel is detected, that is, the area of the dotted portion in the figure is preset, or is notified by the eNB, for example, in SIB or RRC signaling or legacy PDCCH. The area in which the PDSCH is transmitted is the same as the area in which the downlink control channel is detected, or the resource allocation of the PDSCH may be indicated in the downlink control channel.

Figure 7 shows an example where the dotted portion is the downlink control channel. The area of the downlink control channel is detected, that is, the area of the dotted portion in the figure is preset, or is notified by the eNB, for example, in SIB or RRC signaling or legacy PDCCH. The area in which the PDSCH is transmitted is preset, or the resource allocation of the PDSCH may be indicated in the downlink control channel. In FIG. 7, symbol 0, symbol 1, symbol 2, and symbol 3 may respectively correspond to one transmission unit, a total of 4 transmission units, or the symbol in which the control channel is located and the following symbol correspond to one transmission unit, such as symbol 0 and symbol. 1 may correspond to one transmission unit respectively, and symbol 2 and symbol 3 respectively correspond to one transmission unit.

In the embodiment of the present disclosure, the area of the detection control information may be continuous or discontinuous in the frequency domain. Renumber the areas where the control information is detected and define the CCE and search space.

In the embodiment of the present disclosure, the time for detecting the control information may be preset or notified by the eNB, such as in the high layer signaling or the legacy PDCCH.

For the MBSFN (Multimedia Broadcast multicast service Single Frequency Network) subframe, the bundle transmission skips the MBSFN subframe. Or, the data corresponding to the MBSFN subframe is destroyed. Or, the transmission is terminated before the MBSFN subframe, for example, assuming that the eNB schedules the bundle transmission to have a total of 7 symbols, 4 of which are If the previous subframe of the MBSFN subframe has been transmitted, the remaining 3 symbols are not transmitted.

Preferably, each transmission unit corresponds to one symbol, wherein a downlink control channel scheduling the bundle transmission is transmitted on a symbol outside the transmission unit, or a downlink control channel scheduling the bundle transmission is in all or part of a transmission unit Transfer on. Each transmission unit determines the RV according to a preset manner, for example, the RVs are: 0, 2, 3, and 1.

Embodiment 3

This embodiment provides a method for bundling transmission, which can be used for uplink or downlink.

The bundling transmission can perform rate matching over the entire transmission time. Here, the entire transmission time refers to the transmission time corresponding to all transmission units, that is, the encoded bits are sequentially cyclically mapped to all transmission units. That is: first mapped to the first transmission unit, then mapped to the second transmission unit, and then mapped to all transmission units. Alternatively, some transmission units are not self-decodable.

For example, one transmission unit corresponds to one symbol, and the encoded bits are cyclically mapped to all symbols in a symbol-by-symbol manner.

Optionally, for the PUSCH, the transmission bits of the PUSCH are mapped column by column in the interlace matrix, that is, the first row is mapped, and then the next row is mapped. After the interleaving process is completed, it is read out column by column.

Embodiment 4

The embodiments of the present disclosure propose a process for a UE that supports short TTI to transmit information. In the embodiment of the present disclosure, the UE supporting the short TTI is written as the sUE, and the channel for transmitting the information is added with “s”, for example, the downlink data channel is sPDSCH.

For the downlink, the network divides the system bandwidth into a part of the area for the transmission of the main information block (MIB), the SIB, the legacy UE, the sUE-related RAR, and the Msg4 with the TTI of 1 ms, as shown in FIG. 8. Another part of the area is used for short TTI transmission, where the area division is preset or notified by the eNB, such as by SIB or RRC signaling or The DCI notice. The length of the TTI in FIG. 8 is 2 symbols, and the actual application is not limited to the TTI length, and the TTI length is variable. The unicast service (low-latency, high-reliability service) of the sUE is transmitted in an area other than the gray part, and the gray area is transparent to the legacy UE, but the eNB needs to notify the sUE of the area it transmits, which is the sUE transmission. The area of the sPDCCH and/or the sPDSCH, for example, for a 20 MHz system, the eNB notifies the sUE to transmit on the 60 physical resource blocks (PRBs) of the edge. Optionally, the sPDCCH maps resources on the 60 PRBs, and the CCE is defined on the 60 PRBs. A schematic diagram of PSS, SSS, PBCH, SIB, PDCCH, SPDCCH, etc. at 140 TTIs is also shown in FIG.

Optionally, the sUE receives at least one of the following on the legacy TTI transmission area: PSS, SSS, PBCH, SIB, RAR, Msg4. If the sUE receives the information indicated by the eNB and transmits it using the short TTI, it transmits on the short TTI area.

In the embodiment of the present disclosure, the sUE is transmitted on the legacy TTI transmission area before receiving the information indicated by the eNB and transmitting by using the short TTI.

In practical applications, the division of regions is not limited to the above examples. In the embodiment of the present disclosure, the short TTI may occupy multiple discontinuous frequency domain regions in the frequency domain. In the embodiment of the present disclosure, each frequency domain region corresponds to a different TTI length.

For the uplink, the sUE determines the Physical Random Access Channel (PRACH), the legacy PUCCH, or the S-PUCCH region by detecting the SIB and the cell-specific signaling. Figures 9 and 10 show schematic diagrams of uplink transmission. Correspondingly, when the UE performs HARQ feedback on the Msg4 by using the PUCCH, the UE may have the following two solutions.

Option A: Use 1 ms PUCCH feedback.

Option B: Use sPUCCH feedback.

In the embodiment of the present disclosure, in order to reduce the delay, after the RRC connection is established, the sPDSCH or the sPUSCH may adopt a pre-scheduled manner.

Embodiment 5

This embodiment provides a process for transmitting information by a UE supporting short TTI.

The system bandwidth is divided into two carriers, CC-1 and CC-2.

For downlink (DL), MIB, SIB, and sUE related RAR, Msg4, and Legacy UEs are all transmitted on DL CC-1 with a TTI of 1 ms. The sUE uses short TTI transmission on the DL CC-2 after the RRC connection is completed, or after receiving the information indicated by the eNB using the short TTI transmission.

For UL, both PRACH and Msg3 are transmitted on UL CC-1. After the RRC connection is completed or after receiving the information of the short TTI transmission indicated by the eNB, short TTI transmission is adopted on the UL CC-2.

Obviously, according to the logic of the LTE CA, CC-1 is a primary cell and CC-2 is a secondary cell. Different from existing Long-Term Evolution (LTE):

Here, the sPUCCH is required to be sent on the secondary cell;

In the LTE CA, the secondary cell does not support semi-persistent scheduling (SPS). In order to reduce the delay, the secondary cell is required to support the enhanced SPS mode or pre-scheduling.

Embodiment 6

In the above embodiment, the bundle transmission includes a plurality of transmission units. The code rate requirement of the bundle transmission is given in this embodiment.

Optionally, the code rate of the transmission unit satisfies a specified threshold requirement. For example, the code rate of each transmission unit is less than or equal to 0.931 or less than or equal to 0.93 or less than or equal to 1.

Optionally, the code rate of the first transmission unit meets a specified threshold requirement, for example, the code rate of the first transmission unit is less than or equal to 0.931 or less than or equal to 0.93 or less than or equal to 1.

Optionally, the code rate corresponding to the first n transmission units meets a specified threshold requirement, where n is less than or equal to the number of transmission units included in the bundle transmission. Here, the first n transmission units The code rate is a code rate calculated by considering all transmission resources of the first n transmission units as transmission resources. For example, for uplink transmission, there are a total of three transmission units, one for each transmission unit, and each transmission unit transmits the same TBS, the same modulation order Qm, and the same number of REs, then the first two transmission units The code rate is: (TBS + 24) / (2 × Qm × S), where 24 is the number of bits of the CRC, "2" of the denominator indicates two transmission units, and S is the number of REs on one transmission unit. Alternatively, the modulation order of the first transmission unit is Qm1, the number of REs is S1, the modulation order of the second transmission unit is Qm2, and the number of REs is S2, then the code rate on the first two transmission units is: (TBS+24)/(Qm1×S1+Qm2×S2). Optionally, the code rates of the first two transmission units are less than or equal to 0.931 or less than or equal to 0.93 or less than or equal to 1.

FIG. 11 is a schematic structural diagram of an apparatus for transmitting information according to an embodiment of the present disclosure. As shown in FIG. 11, the apparatus for transmitting information includes:

The determining unit 111 is configured to determine N transmission units of the bundle transmission, where N>1;

The transmitting unit 112 is configured to transmit information on the N transmission units 112;

The transmission time corresponding to the i-th transmission unit 112 is Mi symbols, i and Mi are positive integers, and 1≤i≤N.

In an embodiment of the present disclosure, each of the transmission units 112 includes more than one transport block, and the transport block supports self-decoding or needs to be combined with other transport blocks for decoding.

In an embodiment of the present disclosure, the information transmitted by each of the transmission units 112 is the same.

In an embodiment of the present disclosure, the determining unit 111 is further configured to: determine, according to the preset operation and/or the notification message of the base station, at least one of the following information: the number of the transmission units 112 corresponding to the bundle transmission; The MCS of each of the transmission units 112; the RV of each of the transmission units 112; the transmission time corresponding to each of the transmission units 112; the frequency domain resource corresponding to each of the transmission units 112; Reference signal.

In an embodiment of the present disclosure, the determining unit 111 is further configured to determine, according to at least one of the following, a reference signal corresponding to the bundle transmission: a number of symbols corresponding to the bundle transmission, the The bundle transmits the number of corresponding transmission units 112, the type of the terminal, and the operating mode of the terminal.

In an embodiment of the present disclosure, the transmitting unit 112 is further configured to perform bundling transmission on a cell-specific SRS subframe by using one of the following methods: punching and transmitting on a resource corresponding to an SRS bandwidth on the SRS symbol; Rate matching is performed on resources other than the SRS bandwidth on the SRS symbol; the SRS symbol is skipped for transmission.

In an embodiment of the present disclosure, the transmitting unit 112 is further configured to perform bundle transmission by using one of the following methods: puncturing transmission on a resource corresponding to a PDCCH symbol; performing rate matching on a resource other than the PDCCH symbol; The PDCCH symbol is transmitted for transmission.

In an embodiment of the present disclosure, the transmitting unit 112 is further configured to transmit the feedback information.

In an embodiment of the present disclosure, the determining unit 111 is further configured to determine whether to transmit feedback information according to a preset operation and/or a notification message of the base station.

In an embodiment of the present disclosure, the determining unit 111 is further configured to: determine whether to transmit feedback information according to at least one of: a number of transmission units corresponding to the bundle transmission; a transmission time corresponding to the transmission unit; An MCS corresponding to the transmission unit; a frequency domain resource corresponding to the transmission unit.

In an embodiment of the present disclosure, the scheduling information corresponding to the bundle transmission is transmitted on one transmission unit or between two transmission units.

In an embodiment of the present disclosure, the N transmission units that perform the bundle transmission correspond to one scheduling information, or each of the transmission units corresponds to one scheduling information.

In an embodiment of the present disclosure, the bundle transmission is frequency hopped and transmitted according to a specified pattern.

In an embodiment of the present disclosure, the transmission time corresponding to the partial transmission unit or all the transmission units of the N transmission units is 1 symbol.

It will be understood by those skilled in the art that the implementation functions of the units in the apparatus for transmitting information shown in FIG. 11 can be understood by referring to the related description of the foregoing method of transmitting information. Figure 11 shows the transmission The functions of the various units in the device of the information may be implemented by a program running on the processor or by a specific logic circuit.

The technical solutions described in the embodiments of the present disclosure may be arbitrarily combined without conflict.

The apparatus for transmitting information described above in the embodiment of the present invention may also be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a stand-alone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. A computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

Correspondingly, the embodiment of the present invention further provides a storage medium, wherein a computer program is configured, and the computer program is configured to execute the method for transmitting information according to an embodiment of the present invention.

In the several embodiments provided by the present disclosure, it should be understood that the disclosed method and smart device may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.

The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; You can choose some of them according to your actual needs. Or all of the units to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present disclosure may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above is only the specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the disclosure. It should be covered within the scope of protection of the present disclosure.

Industrial applicability

The technical solution of the embodiment of the present disclosure determines N transmission units for bundling transmission, and transmits information on the N transmission units; wherein each of the transmission units includes one or more transmission blocks, and the transmission block supports self-decoding or It needs to be combined with other transport blocks for decoding. The method of transmitting information proposed by the embodiments of the present disclosure can effectively reduce the transmission delay.

Claims

A method of transmitting information, the method comprising:

Determining N transmission units of the bundle transmission, where N>1;

Transmitting information on the N transmission units;

The transmission time corresponding to the i-th transmission unit is Mi symbols, i and Mi are positive integers, and 1≤i≤N.
The method of transmitting information according to claim 1, wherein each of said transmission units comprises more than one transport block, said transport block supporting self-decoding or requiring combined decoding with other transport blocks.
The method of transmitting information according to claim 1, wherein the information transmitted by each of said transmission units is the same.
The method of transmitting information according to claim 1, wherein the determining the N transmission units of the bundle transmission comprises:

Determining at least one of the following information according to a preset operation and/or a notification message of the base station:

Transmitting, by the bundle, the number of corresponding transmission units;

a modulation and coding strategy for each of said transmission units;

a redundancy version of each of the transmission units;

The transmission time corresponding to each of the transmission units;

a frequency domain resource corresponding to each of the transmission units;

The bundle transmits a corresponding reference signal.
The method of transmitting information according to claim 4, wherein the method further comprises: determining a reference signal corresponding to the bundle transmission according to at least one of:

The number of symbols corresponding to the bundle transmission, the number of transmission units corresponding to the bundle transmission, the type of the terminal, and the operation mode of the terminal.
The method of transmitting information according to claim 1, wherein said said N transmissions Transfer information on the transmission unit, including: Bundle transmission in one of the following ways:

Puncturing transmission on a resource corresponding to the bandwidth of the sounding reference signal on the sounding reference signal symbol;

Rate matching on resources other than the sounding reference signal bandwidth on the sounding reference signal symbol;

Skip the sounding reference signal symbol for transmission.
The method of transmitting information according to claim 1, wherein said transmitting information on said N transmission units comprises: performing bundle transmission in one of the following manners:

Puncturing transmission on a resource corresponding to a physical downlink control channel symbol;

Rate matching on resources other than physical downlink control channel symbols;

The physical downlink control channel symbols are skipped for transmission.
The method of transmitting information according to claim 1, wherein the method further comprises:

Feedback information is not transmitted.
The method of transmitting information according to claim 1, wherein the method further comprises:

Whether to transmit feedback information is determined according to a preset operation and/or a notification message of the base station.
The method of transmitting information according to claim 9, wherein determining whether to transmit feedback information according to a preset operation comprises:

Determine whether to transmit feedback information according to at least one of the following:

Transmitting, by the bundle, the number of corresponding transmission units;

The transmission time corresponding to the transmission unit;

a modulation and coding strategy corresponding to the transmission unit;

The frequency domain resource corresponding to the transmission unit.
The method of transmitting information according to claim 1, wherein the scheduling information corresponding to the bundle transmission is transmitted after a start symbol of the bundle transmission.
The method of transmitting information according to claim 11, wherein the scheduling information corresponding to the bundle transmission is transmitted on one transmission unit or between two transmission units.
The method of transmitting information according to claim 1, wherein the N transmission units performing the bundle transmission correspond to one scheduling information, or each of the transmission units corresponds to one scheduling information.
The method of transmitting information according to claim 1, wherein

The bundle transmission is frequency hopped for transmission according to a specified pattern.
The method of transmitting information according to claim 1, wherein

The transmission time corresponding to the partial transmission unit or all the transmission units of the N transmission units is 1 symbol.
The method of transmitting information according to claim 1, wherein

The code rate of the transmission unit satisfies a specified threshold requirement.
The method of transmitting information according to claim 16, wherein said satisfying a specified threshold requirement comprises one of:

The code rate of each transmission unit meets the specified threshold requirement;

The code rate of the first transmission unit meets the specified threshold requirement;

The code rate of the first n transmission units satisfies the specified threshold requirement, where n ≤ N.
The method of transmitting information according to claim 16 or 17, wherein said code rate is less than or equal to 0.931 or less than or equal to 0.93 or less than or equal to 1.
An apparatus for transmitting information, the apparatus comprising:

Determining a unit, configured to determine N transmission units of the bundle transmission, where N>1;

a transmission unit configured to transmit information on the N transmission units;

The transmission time corresponding to the i-th transmission unit is Mi symbols, i and Mi are positive integers, and 1≤i≤N.
The apparatus for transmitting information according to claim 19, wherein each of said transmission units includes one or more transport blocks, said transport blocks supporting self-decoding or requiring combined decoding with other transport blocks.
The apparatus for transmitting information according to claim 19, wherein said determining unit, Further configured to determine at least one of the following information according to a preset operation and/or a notification message of the base station: a number of transmission units corresponding to the bundle transmission; a modulation and coding strategy of each of the transmission units; a redundancy version of the transmission unit; a transmission time corresponding to each of the transmission units; a frequency domain resource corresponding to each of the transmission units; and the bundle transmits a corresponding reference signal.
The apparatus for transmitting information according to claim 21, wherein the determining unit is further configured to determine, according to at least one of the following, a reference signal corresponding to the bundle transmission: a number of symbols corresponding to the bundle transmission, the bundle transmission The number of corresponding transmission units, the type of terminal, and the working mode of the terminal.
The apparatus for transmitting information according to claim 19, wherein the transmission unit is further configured to perform bundle transmission on the cell-specific sounding reference signal subframe by using one of the following methods: detecting on the sounding reference signal symbol Puncturing transmission on the resource corresponding to the reference signal bandwidth; performing rate matching on resources other than the sounding reference signal bandwidth on the sounding reference signal symbol; skipping the sounding reference signal symbol for transmission.
The apparatus for transmitting information according to claim 19, wherein the transmission unit is further configured to perform bundle transmission in one of the following manners: puncturing transmission on a resource corresponding to a physical downlink control channel symbol; and performing a physical downlink control channel Rate matching is performed on resources other than the symbol; the physical downlink control channel symbols are skipped for transmission.
The apparatus for transmitting information according to claim 19, wherein the determining unit is further configured to determine whether to transmit feedback information according to a preset operation and/or a notification message of the base station.
The apparatus for transmitting information according to claim 25, wherein the determining unit is further configured to: determine whether to transmit feedback information according to at least one of: the number of transmission units corresponding to the bundle transmission; the transmission unit corresponds to Transmission time; a modulation and coding strategy corresponding to the transmission unit; a frequency domain resource corresponding to the transmission unit.
A storage medium having stored therein computer executable instructions configured to perform the method of transmitting information of any of claims 1-18.