CN108631835B - Signaling indication method and device of transmission mode - Google Patents

Signaling indication method and device of transmission mode Download PDF

Info

Publication number
CN108631835B
CN108631835B CN201710184304.1A CN201710184304A CN108631835B CN 108631835 B CN108631835 B CN 108631835B CN 201710184304 A CN201710184304 A CN 201710184304A CN 108631835 B CN108631835 B CN 108631835B
Authority
CN
China
Prior art keywords
information
communication node
transmission
mode
precoding matrix
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710184304.1A
Other languages
Chinese (zh)
Other versions
CN108631835A (en
Inventor
王瑜新
鲁照华
陈艺戬
李儒岳
吴昊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN201710184304.1A priority Critical patent/CN108631835B/en
Publication of CN108631835A publication Critical patent/CN108631835A/en
Application granted granted Critical
Publication of CN108631835B publication Critical patent/CN108631835B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/068—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission using space frequency diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0891—Space-time diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0637—Properties of the code
    • H04L1/0643—Properties of the code block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0637—Properties of the code
    • H04L1/0668—Orthogonal systems, e.g. using Alamouti codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0675—Space-time coding characterised by the signaling
    • H04L1/0693—Partial feedback, e.g. partial channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Abstract

The document discloses a signaling indication method and a signaling indication device for a transmission mode, wherein the method can comprise the following steps: the first communication node determines a sending mode and/or a transmission mode used by the second communication node for sending information, and indicates the sending mode and/or the transmission mode to the second communication node through signaling; or the first communication node and the second communication node predefine a sending mode and/or a transmission mode used by the second communication node for sending the information; wherein the information comprises traffic data and/or control information. The method and the device solve the technical problem that the second communication node cannot determine the uplink transmission waveform.

Description

Signaling indication method and device of transmission mode
Technical Field
The invention relates to the field of wireless communication, in particular to a signaling indication method and a signaling indication device for a transmission mode.
Background
In the related art, in Long Term Evolution (LTE), a Physical Downlink Control Channel (PDCCH) is used to carry uplink and Downlink scheduling information and uplink power Control information. Downlink Control Information (DCI) format (format) is divided into DCI formats 0, 1A, 1B, 1C, 1D, 2A, 3A, etc., and then, DCI formats 2B, 2C, 2D are added to LTE-a Release 12(LTE-a Release 12) to support various applications and transmission modes. An evolved Node B (e-Node-B, abbreviated as eNB) may configure a User Equipment (UE) through downlink control information, or the UE receives configuration of a higher layer (highers), which is also called as configuring the UE through a higher layer signaling, and the UE may also be called as a terminal.
With the development of communication technology, the demand of data services is increasing, and available low-frequency carriers are also very scarce, so that communication based on high-frequency (30-300 GHz) carriers which are not fully utilized becomes one of important communication means for solving future high-speed data communication. The available bandwidth for high frequency carrier communication is large, providing efficient high speed data communication. However, one of the great technical challenges facing high frequency carrier communication is: compared with low-frequency signals, high-frequency signals have very large fading in space, and although the problem of spatial fading loss occurs in outdoor communication of the high-frequency signals, more antennas can be generally used due to the reduction of the wavelength of the high-frequency signals, so that the communication can be performed based on beams to compensate the fading loss in space.
However, when the number of antennas increases, the problem of increased cost and power consumption is also caused by the digital beam forming because each antenna needs to have one radio frequency link. Therefore, at present, hybrid beamforming, i.e., a radio frequency beam and a digital beam jointly form a final beam, is favored.
In a New Radio Access Technology (New Radio Access Technology), a high frequency communication system configures a large number of antennas to form downlink transmission beams to compensate for spatial fading of high frequency communication, and a second communication node of a user also configures a large number of antennas to form uplink transmission beams. In the related art, the second communication node may use two different transmission waveforms, which substantially correspond to different transmission schemes, and therefore how to indicate the transmission scheme after determining which transmission scheme to use between the two communication nodes is a problem to be solved.
Disclosure of Invention
In order to solve the above technical problem, embodiments of the present invention provide a signaling indication method and apparatus for a transmission mode.
The present application provides:
a signaling indication method of a transmission mode comprises the following steps:
the first communication node determines a sending mode and/or a transmission mode used by the second communication node for sending information, and indicates the sending mode and/or the transmission mode to the second communication node through signaling;
or the first communication node and the second communication node predefine a sending mode and/or a transmission mode used by the second communication node for sending the information;
wherein the information comprises traffic data and/or control information.
Wherein, the sending mode at least comprises one of the following modes: orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; cyclic prefix orthogonal frequency division multiplexing.
Wherein the transmission mode at least comprises one of the following modes:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna system;
single port approach;
single antenna port approach.
Wherein the signaling comprises at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal.
When each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index only has 1 nonzero element, the transmission mode is the orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum.
When the number of non-zero elements in each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index is greater than 1, it indicates that the transmission mode is cyclic prefix orthogonal frequency division multiplexing.
When the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cyclic delay diversity SCDD, it indicates that the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
Wherein, when the transmission diversity mode in the information for indicating the transmission diversity mode is Space Frequency Block Code (SFBC) or Large Cyclic Delay Diversity (LCDD), the transmission mode is the cyclic prefix orthogonal frequency division multiplexing.
When a single-antenna or single-antenna port transmission mode is used, the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
When a Channel Quality Indicator (CQI) fed back to a first communication node by a second communication node is less than or equal to a predetermined first threshold value, or when the second communication node transmits uplink control data to the first communication node or transmits data by using a physical uplink control channel, determining that a transmission mode used by the second communication node to transmit information is Orthogonal Frequency Division Multiplexing (OFDM) of discrete Fourier transform spread spectrum, wherein the first threshold value is an integer between 1 and 15.
When one or more columns of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index have only 1 non-zero element, determining that the transmission mode used by the second communication node for sending the information is a non-codebook-based transmission mode.
When one or more columns of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index have a plurality of non-zero elements, determining that the transmission mode used by the second communication node for transmitting the information is a codebook-based transmission mode.
Wherein, the information for indicating the wideband precoding matrix index, one of the information for indicating the subband precoding matrix index or the information for indicating the frequency selection precoding matrix index, and the information for indicating the transmission diversity mode are respectively located in downlink control information formats with different lengths.
The information for indicating the wideband precoding matrix index, one of the information for indicating the subband precoding matrix index and the information for indicating the frequency selection precoding matrix index, and the information for indicating the transmission diversity mode are located in the same downlink control information format and are distinguished by using N-bit signaling; wherein N is an integer between 1 and 100.
The determining, by the first communication node, a sending method and/or a transmission method used by the second communication node to send information includes:
the first communication node determines a sending mode used by the second communication node for sending information through blind detection.
The determining, by the first communication node, a sending method and/or a transmission method used by the second communication node to send information includes: the first communication node determines a sending mode used by the second communication node to send information based on configuration parameters of the second communication node, wherein the configuration parameters at least comprise one of the following parameters: transmission mode, beam consistency setting or channel reciprocity capability, configuration of resource allocation, configuration of measurement reference signals.
When the uplink transmission mode is transmission diversity, determining that the transmission mode used by the second communication node to transmit information is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
When the second communication node has beam consistency or channel reciprocity capability, determining that the transmission mode used by the second communication node to transmit information is cyclic prefix orthogonal frequency division multiplexing.
When the number of resource allocation Resource Blocks (RBs) of a second communication node is smaller than a preset second threshold value, determining that the transmission mode used by the second communication node for transmitting information is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; wherein the second threshold value is an integer between 2 and 50.
When the frequency domain bandwidth of the uplink measurement parameter signal of the second communication node is smaller than a predetermined third threshold value, determining that the transmission mode used by the second communication node for transmitting the information is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; wherein the third threshold value is an integer between 2 and 50.
Wherein the indicating the sending mode and/or the transmission mode to the second communication node by signaling includes: the first communication node jointly indicates a sending mode and a transmission mode used by the second communication node for sending the information through the same signaling.
A signaling indication apparatus of a transmission mode, comprising:
a first determining module, configured to determine a sending method and/or a transmission method used by the second communication node to send information; or predefining a sending mode and/or a transmission mode used by the second communication node for sending the information with the second communication node;
a first sending module, configured to indicate the sending method and/or the transmission method to a second communication node through a signaling;
wherein the information comprises traffic data and/or control information.
Wherein, the sending mode at least comprises one of the following modes: orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; cyclic prefix orthogonal frequency division multiplexing.
Wherein the transmission mode at least comprises one of the following modes:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna system;
single port approach;
single antenna port approach.
Wherein the signaling comprises at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal.
When each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index only has 1 nonzero element, the transmission mode is the orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum.
When the number of non-zero elements in each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index is greater than 1, it indicates that the transmission mode is cyclic prefix orthogonal frequency division multiplexing.
When the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cyclic delay diversity SCDD, it indicates that the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
Wherein, when the transmission diversity mode in the information for indicating the transmission diversity mode is Space Frequency Block Code (SFBC) or Large Cyclic Delay Diversity (LCDD), the transmission mode is the cyclic prefix orthogonal frequency division multiplexing.
When a single-antenna or single-antenna port transmission mode is used, the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
A signaling indication method of a transmission mode comprises the following steps:
receiving a signaling from a first communication node, wherein the signaling is used for indicating a sending mode and/or a transmission mode used by a second communication node for sending information;
or predefining a sending mode and/or a transmission mode used by the second communication node for sending the information with the first communication node;
wherein the information includes at least one of:
service data;
and (4) control information.
Wherein, the sending mode at least comprises one of the following modes:
orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum;
cyclic prefix orthogonal frequency division multiplexing.
Wherein the transmission mode at least comprises one of the following modes:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna mode;
single antenna port approach.
Wherein the signaling comprises at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal.
When each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index only has 1 non-zero element, the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
When the number of non-zero elements in each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index is greater than 1, it indicates that the transmission mode is cyclic prefix orthogonal frequency division multiplexing.
When the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cyclic delay diversity SCDD, it indicates that the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
Wherein, when the transmission diversity mode in the information for indicating the transmission diversity mode is Space Frequency Block Code (SFBC) or Large Cyclic Delay Diversity (LCDD), the transmission mode is the cyclic prefix orthogonal frequency division multiplexing.
When the second communication node uses a transmission mode of a single antenna or a single antenna port, the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
When a Channel Quality Indicator (CQI) fed back to a first communication node by a second communication node is less than or equal to a first threshold value, or when the second communication node sends uplink control data to the first communication node or sends data by using a physical uplink control channel, the second communication node uses a discrete Fourier transform spread spectrum Orthogonal Frequency Division Multiplexing (OFDM) sending mode, wherein the first threshold value is an integer between 1 and 15.
When one or more columns of the precoding matrix corresponding to the precoding matrix index have only 1 nonzero element, the transmission mode is a non-codebook-based transmission mode.
When one or more columns of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index have a plurality of non-zero elements, the transmission mode is a codebook-based transmission mode.
Wherein, the information for indicating the wideband precoding matrix index, one of the information for indicating the subband precoding matrix index and the information for indicating the frequency selection precoding matrix index, and the information for indicating the transmission diversity mode are respectively located in downlink control information formats with different lengths.
Wherein the signaling comprises at least one of: the information for indicating the wideband precoding matrix index, one of the information for indicating the subband precoding matrix index and the information for indicating the frequency selection precoding matrix index, and the information for indicating the transmission diversity mode are located in the same downlink control information format, and the 3 information types are distinguished by using an N-bit signaling; wherein N is an integer between 1 and 100.
And the second communication node determines the sending mode by itself.
Wherein the sending mode used by the second communication node to send information is determined based on configuration parameters of the second communication node, and the configuration parameters at least include one of the following: transmission mode, beam consistency setting or channel reciprocity capability, configuration of resource allocation, and configuration of uplink sounding reference signal.
When the uplink transmission mode is transmission diversity, the transmission mode used by the second communication node to transmit information is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
When the second communication node has beam consistency or channel reciprocity capability, the transmission mode used by the second communication node to transmit information is cyclic prefix orthogonal frequency division multiplexing.
When the number of resource allocation Resource Blocks (RBs) of a second communication node is smaller than a second threshold value, the transmission mode used by the second communication node for transmitting information is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; wherein the second threshold value is an integer between 2 and 50.
When the frequency domain bandwidth of the uplink measurement parameter signal of the second communication node is smaller than a third threshold value, the transmission mode used by the second communication node for transmitting information is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; wherein the third threshold value is an integer between 2 and 50.
A signaling indication apparatus of a transmission mode, comprising:
a second receiving module, configured to receive a signaling from a first communication node, where the signaling is used to indicate a sending method and/or a transmission method used by a second communication node to send information;
or, the second determining module is configured to predefine, with the first communication node, a sending method and/or a transmission method used by the second communication node to send the information;
wherein the information includes at least one of:
service data;
and (4) control information.
Wherein, the sending mode at least comprises one of the following modes: orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; cyclic prefix orthogonal frequency division multiplexing.
Wherein the transmission mode at least comprises one of the following modes:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna mode;
single antenna port approach.
Wherein the signaling comprises at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal.
A signaling indication apparatus of a transmission mode, comprising: a processor and a memory, the memory storing computer-executable instructions that, when executed by the processor, implement a method comprising:
determining a sending mode and/or a transmission mode used by the second communication node for sending information, and indicating the sending mode and/or the transmission mode to the second communication node through signaling;
or the first communication node and the second communication node predefine a sending mode and/or a transmission mode used by the second communication node for sending the information;
wherein the information comprises traffic data and/or control information.
A signaling indication apparatus of a transmission mode, comprising: a processor and a memory, the memory storing computer-executable instructions that, when executed by the processor, implement a method comprising:
receiving a signaling from a first communication node, wherein the signaling is used for indicating a sending mode and/or a transmission mode used by a second communication node for sending information;
or predefining a sending mode and/or a transmission mode used by the second communication node for sending the information with the first communication node;
wherein the information includes at least one of:
service data;
and (4) control information.
A computer-readable storage medium storing computer-executable instructions which, when executed by a processor, implement a method of signaling an indication of a transmission as described above.
A computer-readable storage medium storing computer-executable instructions which, when executed by a processor, implement another method for signaling indication of a transmission as described above.
The application has the following advantages:
in at least one embodiment of the present application, a first communication node determines a transmission mode and a sending mode used by a second communication node, and the second communication node is synchronized with the first communication node through signaling, so that the second communication node can determine which uplink transmission waveform to use in a new radio access technology, and the technical problem that the second communication node cannot determine the uplink transmission waveform is solved.
In at least one embodiment of the present application, the second communication node determines, by a negotiation manner with the first communication node or according to an instruction of the first communication node, a transmission manner or a sending manner used for sending information, so that the second communication node can determine which uplink transmission waveform to use in a new radio access technology, and a technical problem that the second communication node cannot determine the uplink transmission waveform is solved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a flowchart illustrating a signaling indication method of a transmission mode according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a signaling indication apparatus of a transmission mode according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a signaling indication method of a transmission mode according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a signaling indication apparatus of a transmission mode according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Example one
A signaling indication method of a transmission mode, as shown in fig. 1, may include:
step 101, a first communication node determines a sending mode and/or a transmission mode used by a second communication node to send information;
102, indicating the sending mode and/or the transmission mode to a second communication node through signaling;
in another implementation manner, the signaling indication method for the transmission manner may include: the first communication node and the second communication node negotiate a transmission mode and/or a transmission mode used by the predefined second communication node for transmitting information.
In one implementation, the information includes traffic data and/or control information.
In one implementation, the sending manner includes at least one of: orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; cyclic prefix orthogonal frequency division multiplexing.
In one implementation, the transmission mode includes at least one of:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna system;
single port approach;
single antenna port approach.
In one implementation, the signaling includes at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal.
In an implementation manner, when each row of a precoding matrix corresponding to a precoding matrix index in the information for indicating the precoding matrix index has only 1 non-zero element, it indicates that the transmission manner is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
When the number of non-zero elements in each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index is greater than 1, it indicates that the transmission mode is cyclic prefix orthogonal frequency division multiplexing.
In an implementation manner, when the transmission diversity manner in the information for indicating the transmission diversity manner is space time block code STBC or small cyclic delay diversity SCDD, it indicates that the transmission manner is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
In an implementation manner, when the transmission diversity manner in the information for indicating the transmission diversity manner is space frequency block code SFBC or large cyclic delay diversity LCDD, it indicates that the transmission manner is cyclic prefix orthogonal frequency division multiplexing.
In one implementation, when a single-antenna or single-antenna port transmission scheme is used, the transmission scheme is ofdm with discrete fourier transform spread spectrum.
In one implementation, when a channel quality indicator CQI fed back to a first communication node by a second communication node is less than or equal to a predetermined threshold value K, or when the second communication node transmits uplink control data to the first communication node or transmits data using a physical uplink control channel, it is determined that a transmission method used by the second communication node to transmit information is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum, where K is an integer between 1 and 15.
In an implementation manner, when one or more columns of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index have only 1 non-zero element, it is determined that the transmission mode used by the second communication node to send information is a transmission mode based on a non-codebook.
In an implementation manner, when one or more columns of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index have a plurality of non-zero elements, it is determined that the transmission mode used by the second communication node to send the information is a codebook-based transmission mode.
In an implementation manner, one of the information indicating the wideband precoding matrix index, the information indicating the subband precoding matrix index, and the information indicating the frequency selective precoding matrix index, and the information indicating the transmission diversity mode are respectively located in downlink control information formats with different lengths.
In an implementation manner, the information for indicating the wideband precoding matrix index, one of the information for indicating the subband precoding matrix index and the information for indicating the frequency selection precoding matrix index, and the information for indicating the transmission diversity mode are located in the same downlink control information format and are distinguished by using N-bit signaling; wherein N is an integer between 1 and 100.
In one implementation, the sending mode may be determined by the second communication node itself. In another implementation, the first communication node may determine, through blind detection, a transmission mode used by the second communication node to transmit information.
In one implementation, the first communication node determines a transmission mode used by the second communication node to transmit information based on configuration parameters of the second communication node, the configuration parameters including at least one of: transmission mode, beam consistency setting or channel reciprocity capability, configuration of resource allocation, configuration of measurement reference signals.
In one implementation, when the uplink transmission mode is transmission diversity, it is determined that the transmission mode used by the second communication node to transmit information is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
In one implementation, when the second communication node has beam consistency or channel reciprocity capability, it is determined that a transmission method used by the second communication node to transmit information is cyclic prefix orthogonal frequency division multiplexing.
In one implementation, when the number of resource allocation Resource Blocks (RBs) of a second communication node is less than a certain threshold value M, it is determined that a transmission mode used by the second communication node to transmit information is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum; wherein M is an integer between 2 and 50.
In one implementation, when the frequency domain bandwidth of the uplink measurement parameter signal of the second communication node is smaller than a certain threshold Q, it is determined that the transmission mode used by the second communication node to transmit information is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum; wherein Q is an integer between 2 and 50.
In one implementation, step 102 may be: the first communication node jointly indicates a sending mode and a transmission mode used by the second communication node for sending the information through the same signaling.
A signaling indication apparatus of a transmission mode, as shown in fig. 2, may include:
a first determining module 21, configured to determine a sending method and/or a transmission method used by the second communication node to send information; or predefining a sending mode and/or a transmission mode used by the second communication node for sending the information with the second communication node;
a first sending module 22, configured to indicate the sending method and/or the transmission method to the second communication node through a signaling;
wherein the information comprises traffic data and/or control information.
Wherein, the sending mode at least comprises one of the following modes:
orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum;
cyclic prefix orthogonal frequency division multiplexing.
Wherein the transmission mode at least comprises one of the following modes:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna system;
single port approach;
single antenna port approach.
Wherein the signaling comprises at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal.
When each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index only has 1 nonzero element, the transmission mode is the orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum.
When the number of non-zero elements in each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index is greater than 1, it indicates that the transmission mode is cyclic prefix orthogonal frequency division multiplexing.
When the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cyclic delay diversity SCDD, it indicates that the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
Wherein, when the transmission diversity mode in the information for indicating the transmission diversity mode is Space Frequency Block Code (SFBC) or Large Cyclic Delay Diversity (LCDD), the transmission mode is the cyclic prefix orthogonal frequency division multiplexing.
When a single-antenna or single-antenna port transmission mode is used, the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
In this embodiment, the first determining module 21 and the first sending module 22 may be implemented by software, hardware or a combination of both. In practical applications, the first sending module 22 may be implemented by a communication unit of the first communication node, and the first determining module 21 may be implemented by a processor of the first communication node. Alternatively, the first determining module 21, the first sending module 22 are implemented by a processor of the first communication node in combination with a communication unit. And are not limited in this context.
The signaling indication device of another transmission mode comprises: a processor and a memory, wherein the memory stores computer-executable instructions that, when executed by the processor, implement a method comprising:
determining a sending mode and/or a transmission mode used by the second communication node for sending information, and indicating the sending mode and/or the transmission mode to the second communication node through signaling;
or the first communication node and the second communication node predefine a sending mode and/or a transmission mode used by the second communication node for sending the information;
wherein the information comprises traffic data and/or control information.
The signaling indication apparatus of the two transmission methods in this embodiment can implement all details of the method in this embodiment, and the implementation principles thereof are similar, and reference can be made to the related descriptions of the method in this embodiment.
In practical applications, the signaling indication devices of the two transmission modes may be implemented by being disposed in the first communication node, or directly implemented by the first communication node.
Example two
A signaling indication method of a transmission mode, as shown in fig. 3, may include at least one of the following steps:
step 300, receiving a signaling from a first communication node, where the signaling is used to indicate a sending method and/or a transmission method used by a second communication node to send information;
step 400, predefining a sending mode and/or a transmission mode used by a second communication node for sending information with a first communication node;
wherein the information includes at least one of: service data; and (4) control information.
In one implementation, the sending manner includes at least one of: orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; cyclic prefix orthogonal frequency division multiplexing.
In one implementation, the transmission mode includes at least one of:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna mode;
single antenna port approach.
In one implementation, the signaling includes at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal.
In an implementation manner, when each row of a precoding matrix corresponding to a precoding matrix index in the information for indicating the precoding matrix index has only 1 non-zero element, it indicates that the transmission manner is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
In an implementation manner, when the number of non-zero elements in each row of a precoding matrix corresponding to a precoding matrix index in the information for indicating the precoding matrix index is greater than 1, it indicates that the transmission manner is cyclic prefix orthogonal frequency division multiplexing.
In an implementation manner, when the transmission diversity manner in the information for indicating the transmission diversity manner is space time block code STBC or small cyclic delay diversity SCDD, it indicates that the transmission manner is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
In an implementation manner, when the transmission diversity manner in the information for indicating the transmission diversity manner is space frequency block code SFBC or large cyclic delay diversity LCDD, it indicates that the transmission manner is cyclic prefix orthogonal frequency division multiplexing.
In one implementation, when the second communication node uses a single-antenna or single-antenna port transmission method, the transmission method is ofdm with discrete fourier transform spread spectrum.
In one implementation, when a channel quality indicator CQI fed back to a first communication node by a second communication node is less than or equal to a first threshold, or when the second communication node transmits uplink control data to the first communication node or transmits data using a physical uplink control channel, the second communication node uses an orthogonal frequency division multiplexing transmission method of discrete fourier transform spread spectrum, where the first threshold is an integer between 1 and 15.
In an implementation manner, when one or more columns of the precoding matrix corresponding to the precoding matrix index have only 1 non-zero element, the transmission manner is a non-codebook-based transmission manner.
In an implementation manner, when one or more columns of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index have a plurality of non-zero elements, the transmission manner is a transmission manner based on a codebook.
In an implementation manner, one of the information indicating the wideband precoding matrix index, the information indicating the subband precoding matrix index, and the information indicating the frequency selective precoding matrix index, and the information indicating the transmission diversity mode are respectively located in downlink control information formats with different lengths.
In one implementation, the signaling includes at least one of: the information for indicating the wideband precoding matrix index, one of the information for indicating the subband precoding matrix index and the information for indicating the frequency selection precoding matrix index, and the information for indicating the transmission diversity mode are located in the same downlink control information format, and the 3 information types are distinguished by using an N-bit signaling; wherein N is an integer between 1 and 100.
In one implementation, the second communication node determines the sending method by itself.
In one implementation, the transmission mode used by the second communication node to transmit information is determined based on configuration parameters of the second communication node, the configuration parameters including at least one of: transmission mode, beam consistency setting or channel reciprocity capability, configuration of resource allocation, configuration of measurement reference signals.
In one implementation, when the uplink transmission mode is transmission diversity, the transmission mode used by the second communication node to transmit information is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
In one implementation, when the second communication node has beam consistency or channel reciprocity capability, the transmission mode used by the second communication node to transmit information is cyclic prefix orthogonal frequency division multiplexing.
In one implementation, when the number of resource allocation RBs of a second communication node is smaller than a second threshold, a transmission mode used by the second communication node to transmit information is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum; wherein the second threshold value is an integer between 2 and 50.
In one implementation, when the frequency domain bandwidth of the uplink measurement parameter signal of the second communication node is smaller than a third threshold, the transmission mode used by the second communication node to transmit information is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum; wherein the third threshold value is an integer between 2 and 50.
A signaling indication apparatus of a transmission mode, as shown in fig. 4, may include:
a second receiving module 41, configured to receive a signaling from the first communication node, where the signaling is used to indicate a sending method and/or a transmission method used by the second communication node to send information;
or, the second determining module 42 is configured to predefine, with the first communication node, a sending method and/or a transmission method used by the second communication node to send the information;
wherein the information includes at least one of:
service data;
and (4) control information.
Wherein, the sending mode at least comprises one of the following modes: orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; cyclic prefix orthogonal frequency division multiplexing.
Wherein the transmission mode at least comprises one of the following modes:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna mode;
single antenna port approach.
Wherein the signaling comprises at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal.
In this embodiment, the second receiving module 41 and the second determining module 42 may be implemented by software, hardware or a combination of the two. In practical applications, the second receiving module 41 may be implemented by a communication unit of a second communication node, and the second determining module 42 may be implemented by a processor of the second communication node. Alternatively, the second receiving module 41 and the second determining module 42 are implemented by a processor of the second communication node in combination with a communication unit. And are not limited in this context.
The signaling indication device of another transmission mode comprises: a processor and a memory, the memory storing computer-executable instructions that, when executed by the processor, implement a method comprising:
receiving a signaling from a first communication node, wherein the signaling is used for indicating a sending mode and/or a transmission mode used by a second communication node for sending information;
or predefining a sending mode and/or a transmission mode used by the second communication node for sending the information with the first communication node;
wherein the information includes at least one of:
service data;
and (4) control information.
The signaling indication apparatus of the two transmission methods in this embodiment can implement all details of the method in this embodiment, and the implementation principles thereof are similar, and reference can be made to the related descriptions of the method in this embodiment.
In practical applications, the signaling indication devices of the two transmission modes may be implemented by being disposed in the second communication node, or directly implemented by the second communication node.
In this application, the first communication node is a node for determining a transmission mode of the second communication node and instructing signaling to the second communication node, and the second communication node is a node for receiving the signaling. In one implementation, the first communication node may be a base station of a macro cell, a base station or a transmission node of a small cell (small cell), a transmission node in a high frequency communication system, a transmission node in an internet of things system, or the like, and the second communication node may be a node in a communication system such as a User Equipment (UE), a mobile phone, a portable device, an automobile, or the like. In another implementation, a base station of a macro cell, a base station or a transmission node of a small cell, a transmission node in a high frequency communication system, a transmission node in an internet of things system, etc. may serve as the second communication node, and a UE, etc. may serve as the first communication node.
In this application, the transmission waveform or the transmission mode that the second communication node can use may include: discrete fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM), cyclic prefix orthogonal frequency division multiplexing (CP-OFDM). In practical application, the DFT-S-OFDM may also be referred to as single carrier frequency division multiple access, single carrier transmission waveform; the CP-OFDM may also be referred to as an orthogonal frequency division multiple access, multicarrier transmission waveform.
Various implementations of the present application are described in detail below by way of examples.
Example one
In this example, the procedure of the transmission mode signaling indication may be: the first communication node determines a transmission mode used for sending information to the second communication node and indicates the transmission mode to the second communication node through signaling;
wherein the information includes at least one of traffic data and control information.
Wherein, the transmission mode at least comprises one of the following modes: a precoding manner, a broadband precoding manner, a sub-band precoding manner, a frequency selection precoding manner, a transmission diversity manner, and a single-antenna or single-antenna port manner.
Wherein the signaling may include at least one of: the information used for indicating the broadband precoding matrix index, the information used for indicating the subband precoding matrix index, the information used for indicating the frequency selection precoding matrix index and the information used for indicating the transmission diversity mode.
Here, when the transmission mode is a wideband precoding mode or a subband precoding mode, the codebook used may include a codeword for antenna selection or antenna port selection or port selection, and for example, the codebook may be a codebook as shown in table 1, table 2, table 3, and table 4 below. Table 1 shows an example of a port selection codebook of layer 1, table 2 shows an example of a port selection codebook of layer 2, table 3 shows an example of a port selection codebook of layer 3, and table 4 shows an example of a port selection codebook of layer 4.
Figure BDA0001254422230000251
TABLE 1
Figure BDA0001254422230000252
TABLE 2
Figure BDA0001254422230000261
TABLE 3
Figure BDA0001254422230000262
TABLE 4
In an implementation manner, the information for indicating the wideband precoding matrix index, the information for indicating the subband precoding matrix index, the information for indicating the frequency selective precoding matrix index, and the information for indicating the transmission diversity mode are respectively located in downlink control information formats with different lengths.
In another implementation manner, the information for indicating the wideband precoding matrix index, the information for indicating the subband precoding matrix index, the information for indicating the frequency selective precoding matrix index, and the information for indicating the transmission diversity mode may be located in the same downlink control information format, and an N-bit signaling is used to distinguish information types; wherein N may be an integer between 1 and 100.
Example two
In this example, one implementation manner of the process of the transmission mode signaling indication is as follows: the first communication node determines a sending mode or a transmission mode used by the second communication node for sending information, and indicates the sending mode or the transmission mode to the second communication node through signaling.
In this example, another implementation manner of the procedure of the transmission mode signaling indication is as follows: both the first communication node and the second communication node predefine a sending mode or a transmission mode used by the second communication node for sending information.
Wherein the information may include traffic data and/or control information.
Wherein, the sending mode at least comprises one of the following modes: orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum and cyclic prefix orthogonal frequency division multiplexing.
Wherein the transmission mode at least comprises one of the following modes: a precoding manner, a broadband precoding manner, a sub-band precoding manner, a frequency selection precoding manner, a transmission diversity manner, a single antenna or single port or single antenna port manner.
Wherein the signaling comprises at least one of: information for indicating a precoding matrix index, information for indicating a wideband precoding matrix index, information for indicating a subband precoding matrix index, information for indicating a frequency selective precoding matrix index, information for indicating an antenna or antenna port or beam index, information for indicating a transmission diversity mode.
In this example, when each row of the precoding matrix corresponding to the precoding matrix index has only 1 non-zero element, that is, the precoding matrix is a matrix reserved by Cubic Metric (CM) indicating that the transmission mode used by the second communication node is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum.
In this example, when the number of non-zero elements in each row of the precoding matrix corresponding to the precoding matrix index is greater than 1, it indicates that the transmission mode used by the second communication node is cyclic prefix orthogonal frequency division multiplexing.
In this example, when the transmission diversity mode is Space Time Block Code (STBC) or Small Cyclic Delay Diversity (SCDD), that is, the used transmission diversity mode is CM preseving, the transmission mode used by the second communication node is ofdm with discrete fourier transform spreading.
In this example, when the transmission diversity mode is Space Frequency Block Code (SFBC) or Large Cyclic Delay Diversity (LCDD), the transmission mode used by the second communication node is cyclic prefix orthogonal frequency division multiplexing.
Example three
In this example, the procedure of the transmission mode signaling indication may be: both the first communication node and the second communication node predefine a sending mode or a transmission mode used by the second communication node for sending information.
Wherein the information comprises traffic data and/or control information.
Wherein, the sending mode at least comprises one of the following modes: orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum and cyclic prefix orthogonal frequency division multiplexing.
In one implementation, when the second communication node uses a single-antenna or single-antenna port transmission scheme, the second communication node uses an ofdm transmission scheme using dft spread.
In one implementation, when the second communication node is located at the edge of the cell where the first communication node is located, or when the second communication node sends uplink control data to the first communication node or sends data by using a physical uplink control channel, the second communication node uses an orthogonal frequency division multiplexing (ofdm) transmission mode of discrete fourier transform (dft) spread spectrum; otherwise, cyclic prefix orthogonal frequency division multiplexing is used.
Example four
The first communication node determines a sending mode of the second communication node based on configuration parameters of the second communication node, wherein the configuration parameters at least comprise one of the following parameters: transmission mode, beam consistency setting or channel reciprocity capability, configuration of resource allocation, and configuration of uplink sounding reference signal.
Further, when the uplink transmission mode is transmission diversity, determining that the transmission mode of the second communication node is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum;
or when the second communication node has beam consistency or channel reciprocity capability, determining that the sending mode of the second communication node is cyclic prefix orthogonal frequency division multiplexing;
or when the number of resource allocation RBs of the second communication node is less than a certain threshold value M, determining that the transmission mode of the second communication node is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; wherein M is an integer between 2 and 50.
Or when the frequency domain bandwidth of the uplink measurement parameter signal of the second communication node is smaller than a certain threshold value Q, determining that the sending mode of the second communication node is the orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum; wherein Q is an integer between 2 and 50.
In addition, an embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed, the method for signaling indication of a transmission mode is implemented.
In addition, an embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed, the method for signaling indication of another transmission method described above is implemented.
Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Optionally, in this embodiment, the processor executes the method steps of the above embodiments according to the program code stored in the storage medium.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
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 a program instructing associated hardware (e.g., a processor) to perform the steps, and the program may be stored in a computer readable storage medium, such as a read only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, the modules/units in the above embodiments may be implemented in hardware, for example, by an integrated circuit, or may be implemented in software, for example, by a processor executing programs/instructions stored in a memory to implement the corresponding functions. The present application is not limited to any specific form of hardware or software combination.
The foregoing shows and describes the general principles and features of the present application, together with the advantages thereof. The present application is not limited to the above-described embodiments, which are described in the specification and drawings only to illustrate the principles of the application, but also to provide various changes and modifications within the spirit and scope of the application, which are within the scope of the claimed application.

Claims (51)

1. A signaling indication method of a transmission mode is characterized by comprising the following steps:
the first communication node determines a sending mode and/or a transmission mode used by the second communication node for sending information, and indicates the sending mode and/or the transmission mode to the second communication node through signaling;
or the first communication node and the second communication node predefine a sending mode and/or a transmission mode used by the second communication node for sending the information;
wherein the information comprises service data and/or control information;
the signaling includes at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal;
and when the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cycle delay diversity SCDD, indicating that the sending mode is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum.
2. The method of claim 1, wherein the transmission mode comprises at least one of:
orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum;
cyclic prefix orthogonal frequency division multiplexing.
3. The method of claim 1, wherein the transmission mode comprises at least one of:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna system;
single port approach;
single antenna port approach.
4. The method according to claim 1, wherein when each row of a precoding matrix corresponding to a precoding matrix index in the information for indicating precoding matrix indexes has only 1 non-zero element, the transmission mode is orthogonal frequency division multiplexing of discrete fourier transform spreading.
5. The method according to claim 1, wherein when the number of non-zero elements in each row of a precoding matrix corresponding to a precoding matrix index in the information for indicating the precoding matrix index is greater than 1, it indicates that the transmission method is cyclic prefix orthogonal frequency division multiplexing.
6. The method of claim 1, wherein the transmission mode is cyclic prefix orthogonal frequency division multiplexing when the transmission diversity mode in the information indicating the transmission diversity mode is Space Frequency Block Code (SFBC) or Large Cyclic Delay Diversity (LCDD).
7. The method of claim 1, wherein when a single-antenna or single-antenna port transmission scheme is used, the transmission scheme is orthogonal frequency division multiplexing with discrete fourier transform spread spectrum.
8. The method according to claim 1, 2 or 3, wherein when the CQI is less than or equal to a predetermined first threshold value, or when the second communication node transmits uplink control data to the first communication node or transmits data using a physical uplink control channel, it is determined that the transmission mode used by the second communication node to transmit information is ofdm of discrete fourier transform spread spectrum, where the first threshold value is an integer between 1 and 15.
9. The method of claim 1, wherein when one or more columns of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index have only 1 non-zero element, it is determined that the transmission method used by the second communication node to transmit information is a non-codebook based transmission method.
10. The method of claim 1, wherein when one or more columns of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index have a plurality of non-zero elements, it is determined that the transmission method used by the second communication node to transmit information is a codebook-based transmission method.
11. The method of claim 1, wherein one of the information indicating the wideband precoding matrix index, the information indicating the subband precoding matrix index, or the information indicating the frequency selective precoding matrix index, and the information indicating the transmission diversity mode are respectively located in downlink control information formats with different lengths.
12. The method according to claim 1, wherein the information indicating the wideband precoding matrix index, one of the information indicating the subband precoding matrix index and the information indicating the frequency-selective precoding matrix index, and the information indicating the transmission diversity mode are located in a same downlink control information format and are distinguished by using N-bit signaling; wherein N is an integer between 1 and 100.
13. The method according to claim 1 or 2, wherein the first communication node determining a transmission mode and/or a transmission mode used by the second communication node to transmit information comprises:
the first communication node determines a sending mode used by the second communication node for sending information through blind detection.
14. The method according to claim 1 or 2, wherein the first communication node determining a transmission mode and/or a transmission mode used by the second communication node to transmit information comprises:
the first communication node determines a sending mode used by the second communication node to send information based on configuration parameters of the second communication node, wherein the configuration parameters at least comprise one of the following parameters: transmission mode, beam consistency setting or channel reciprocity capability, configuration of resource allocation, configuration of measurement reference signals.
15. The method of claim 14 wherein when the uplink transmission mode is transmit diversity, then determining that the transmission mode used by the second communications node to transmit information is orthogonal frequency division multiplexing with discrete fourier transform spread spectrum.
16. The method of claim 14, wherein when the second communications node has beam consistency or channel reciprocity capability, then determining that the transmission mode used by the second communications node to transmit information is cyclic prefix orthogonal frequency division multiplexing.
17. The method of claim 14 wherein when the number of resource allocation Resource Blocks (RBs) of the second communication node is less than a predetermined second threshold, determining that the transmission scheme used by the second communication node to transmit information is OFDM with DFT; wherein the second threshold value is an integer between 2 and 50.
18. The method of claim 14, wherein when the frequency domain bandwidth of the uplink measurement parameter signal of the second communication node is less than a predetermined third threshold, determining that the transmission mode used by the second communication node to transmit the information is ofdm with dft-spread; wherein the third threshold value is an integer between 2 and 50.
19. The method according to claim 1 or 14, wherein the signaling the sending mode and/or the transmission mode to the second communication node comprises:
the first communication node jointly indicates a sending mode and a transmission mode used by the second communication node for sending the information through the same signaling.
20. A signaling indication apparatus for a transmission mode, comprising:
a first determining module, configured to determine a sending method and/or a transmission method used by the second communication node to send information; or predefining a sending mode and/or a transmission mode used by the second communication node for sending the information with the second communication node;
a first sending module, configured to indicate the sending method and/or the transmission method to a second communication node through a signaling;
wherein the information comprises service data and/or control information;
the signaling includes at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal;
and when the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cycle delay diversity SCDD, indicating that the sending mode is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum.
21. The apparatus of claim 20, wherein the transmission mode comprises at least one of:
orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum;
cyclic prefix orthogonal frequency division multiplexing.
22. The apparatus of claim 20, wherein the transmission means comprises at least one of:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna system;
single port approach;
single antenna port approach.
23. The apparatus according to claim 20, wherein when each row of a precoding matrix corresponding to a precoding matrix index in the information for indicating precoding matrix indexes has only 1 non-zero element, the transmission mode is ofdm with dft spread.
24. The apparatus according to claim 20, wherein when the number of non-zero elements in each row of a precoding matrix corresponding to a precoding matrix index in the information for indicating a precoding matrix index is greater than 1, it indicates that the transmission method is cyclic prefix orthogonal frequency division multiplexing.
25. The apparatus of claim 20, wherein the transmission mode is cyclic prefix orthogonal frequency division multiplexing when the transmission diversity mode in the information indicating the transmission diversity mode is Space Frequency Block Code (SFBC) or Large Cyclic Delay Diversity (LCDD).
26. The apparatus of claim 20, wherein when a single antenna or single antenna port transmission is used, the transmission is orthogonal frequency division multiplexing with discrete fourier transform spread spectrum.
27. A signaling indication method of a transmission mode is characterized by comprising the following steps:
receiving a signaling from a first communication node, wherein the signaling is used for indicating a sending mode and/or a transmission mode used by a second communication node for sending information;
or predefining a sending mode and/or a transmission mode used by the second communication node for sending the information with the first communication node;
wherein the information includes at least one of:
service data;
control information;
the signaling includes at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal;
and when the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cycle delay diversity SCDD, indicating that the sending mode is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum.
28. The method of claim 27, wherein the transmission mode comprises at least one of:
orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum;
cyclic prefix orthogonal frequency division multiplexing.
29. The method of claim 27, wherein the transmission mode comprises at least one of:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna mode;
single antenna port approach.
30. The method according to claim 27, wherein when there are only 1 non-zero elements in each row of a precoding matrix corresponding to a precoding matrix index in the information for indicating a precoding matrix index, the transmission mode is ofdm with dft spread.
31. The method according to claim 27, wherein when the number of non-zero elements in each row of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index is greater than 1, it indicates that the transmission method is cyclic prefix orthogonal frequency division multiplexing.
32. The method of claim 27, wherein the transmission mode is Cyclic Prefix Orthogonal Frequency Division Multiplexing (CPOFDM) when the transmission diversity mode in the information indicating the transmission diversity mode is Space Frequency Block Code (SFBC) or Large Cyclic Delay Diversity (LCDD).
33. The method of claim 27, wherein when the second communication node uses a single antenna or single antenna port transmission mode, the transmission mode is orthogonal frequency division multiplexing with discrete fourier transform spread spectrum.
34. The method of claim 27,
when a Channel Quality Indicator (CQI) fed back to a first communication node by a second communication node is smaller than or equal to a first threshold value, or when the second communication node sends uplink control data to the first communication node or sends data by using a physical uplink control channel, the second communication node uses a discrete Fourier transform spread spectrum Orthogonal Frequency Division Multiplexing (OFDM) sending mode, wherein the first threshold value is an integer between 1 and 15.
35. The method of claim 27,
and when one or more columns of the precoding matrix corresponding to the precoding matrix index have only 1 non-zero element, the transmission mode is a non-codebook-based transmission mode.
36. The method according to claim 27, wherein when one or more columns of the precoding matrix corresponding to the precoding matrix index in the information for indicating the precoding matrix index have a plurality of non-zero elements, the transmission method is a codebook-based transmission method.
37. The method of claim 27, wherein one of the information indicating the wideband precoding matrix index, the information indicating the subband precoding matrix index, and the information indicating the frequency selective precoding matrix index, and the information indicating the transmission diversity mode are respectively located in downlink control information formats with different lengths.
38. The method of claim 27, wherein the signaling comprises at least one of: the information for indicating the wideband precoding matrix index, one of the information for indicating the subband precoding matrix index and the information for indicating the frequency selection precoding matrix index, and the information for indicating the transmission diversity mode are located in the same downlink control information format, and the 3 information types are distinguished by using an N-bit signaling; wherein N is an integer between 1 and 100.
39. The method according to claim 27 or 28, wherein the second communication node determines the sending mode itself.
40. The method of claim 27 or 28, wherein the transmission mode used by the second communication node to transmit information is determined based on configuration parameters of the second communication node, wherein the configuration parameters include at least one of: transmission mode, beam consistency setting or channel reciprocity capability, configuration of resource allocation, and configuration of uplink sounding reference signal.
41. The method of claim 40, wherein the second communications node transmits information using an orthogonal frequency division multiplexing with discrete Fourier transform spread spectrum when the uplink transmission is transmit diversity.
42. The method of claim 40, wherein the second communication node transmits information using a transmission scheme that is cyclic prefix orthogonal frequency division multiplexing when the second communication node has beam consistency or channel reciprocity capability.
43. The method of claim 40, wherein when the number of resource allocation Resource Blocks (RBs) of the second communication node is less than a second threshold, the transmission used by the second communication node to transmit information is OFDM with DFT; wherein the second threshold value is an integer between 2 and 50.
44. The method of claim 40, wherein when the frequency domain bandwidth of the uplink measurement parameter signal of the second communication node is smaller than a third threshold, the transmission mode used by the second communication node to transmit information is OFDM with DFT; wherein the third threshold value is an integer between 2 and 50.
45. A signaling indication apparatus for a transmission mode, comprising:
a second receiving module, configured to receive a signaling from a first communication node, where the signaling is used to indicate a sending method and/or a transmission method used by a second communication node to send information;
or, the second determining module is configured to predefine, with the first communication node, a sending method and/or a transmission method used by the second communication node to send the information;
wherein the information includes at least one of:
service data;
control information;
the signaling includes at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal;
and when the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cycle delay diversity SCDD, indicating that the sending mode is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum.
46. The apparatus of claim 45, wherein the transmission mode comprises at least one of:
orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum;
cyclic prefix orthogonal frequency division multiplexing.
47. The apparatus of claim 45, wherein the transmission means comprises at least one of:
a manner of precoding;
a wideband precoding manner;
a sub-band precoding manner;
frequency selection of a pre-coding mode;
a manner of transmit diversity;
a single antenna mode;
single antenna port approach.
48. A signaling indication apparatus of a transmission mode, comprising: a processor and a memory, wherein the memory stores computer-executable instructions that, when executed by the processor, implement a method comprising:
determining a sending mode and/or a transmission mode used by the second communication node for sending information, and indicating the sending mode and/or the transmission mode to the second communication node through signaling;
or the first communication node and the second communication node predefine a sending mode and/or a transmission mode used by the second communication node for sending the information;
wherein the information comprises service data and/or control information;
the signaling includes at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal;
and when the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cycle delay diversity SCDD, indicating that the sending mode is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum.
49. A signaling indication apparatus of a transmission mode, comprising: a processor and a memory, wherein the memory stores computer-executable instructions that, when executed by the processor, implement a method comprising:
receiving a signaling from a first communication node, wherein the signaling is used for indicating a sending mode and/or a transmission mode used by a second communication node for sending information;
or predefining a sending mode and/or a transmission mode used by the second communication node for sending the information with the first communication node;
wherein the information includes at least one of:
service data;
control information;
the signaling includes at least one of:
information indicating a precoding matrix index;
information indicating a wideband precoding matrix index;
information indicating a subband precoding matrix index;
information for indicating an index of a frequency selective precoding matrix;
information indicating an antenna or antenna port or beam index;
information indicating a transmission diversity mode;
information indicating a transmission mode;
information indicating beam consistency settings or channel reciprocity capabilities;
information indicating resource allocation;
information indicating a measurement reference signal;
and when the transmission diversity mode in the information for indicating the transmission diversity mode is space time block code STBC or small cycle delay diversity SCDD, indicating that the sending mode is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum.
50. A computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the method of any one of claims 1 to 19.
51. A computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the method of any of claims 27 to 44.
CN201710184304.1A 2017-03-24 2017-03-24 Signaling indication method and device of transmission mode Active CN108631835B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710184304.1A CN108631835B (en) 2017-03-24 2017-03-24 Signaling indication method and device of transmission mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710184304.1A CN108631835B (en) 2017-03-24 2017-03-24 Signaling indication method and device of transmission mode

Publications (2)

Publication Number Publication Date
CN108631835A CN108631835A (en) 2018-10-09
CN108631835B true CN108631835B (en) 2022-04-12

Family

ID=63706828

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710184304.1A Active CN108631835B (en) 2017-03-24 2017-03-24 Signaling indication method and device of transmission mode

Country Status (1)

Country Link
CN (1) CN108631835B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021030954A1 (en) * 2019-08-16 2021-02-25 华为技术有限公司 Transmission mode determining method and apparatus
CN113852948B (en) * 2021-07-07 2023-05-05 华为技术有限公司 Method and device for transmitting application context migration information

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101938336B (en) * 2010-08-13 2016-05-11 中兴通讯股份有限公司 A kind of instruction of uplink transmission mode, determine method and system
CN103905104B (en) * 2012-12-28 2017-12-19 中兴通讯股份有限公司 It is a kind of according to the multi-antenna sending method and terminal of detection reference signal and base station
US9042467B2 (en) * 2013-05-01 2015-05-26 Delphi Technologies, Inc. Method to increase signal-to-noise ratio of a cyclic-prefix orthogonal frequency-division multiplex signal
KR101832633B1 (en) * 2013-09-30 2018-02-26 후지쯔 가부시끼가이샤 Information feedback method, codebook determination method, ue and base station
CN106464337B (en) * 2015-03-03 2020-01-21 华为技术有限公司 Method, device and equipment for transmitting data

Also Published As

Publication number Publication date
CN108631835A (en) 2018-10-09

Similar Documents

Publication Publication Date Title
US10673507B2 (en) Method and apparatus for channel state information reference signal (CSI-RS)
CN108111282B (en) Wireless communication method and device
CN108768599B (en) Method and device for sending and receiving uplink signal, storage medium and electronic equipment
CN108111280B (en) Reference signal configuration, information transmission and information receiving method and device
CN108112076B (en) Method and device for configuring uplink signal
CN111771341A (en) Method and apparatus for resource-based CSI acquisition in advanced wireless communication systems
WO2019141285A1 (en) Antenna selection indication method, device and system
CN109997381B (en) Base station device, terminal device, and communication method
CN108702226A (en) The method and apparatus of measuring reference signals in wireless communication system
KR20200067873A (en) Variable coherence adaptive antenna array
JP7012845B2 (en) Non-precoder matrix indicator (PMI) Channel state information (CSI) methods and devices for signaling port indexes for feedback.
CN110535499A (en) A kind of implementation method of power control, device and communication node
KR102612338B1 (en) Signaling of quasi-co-location information in wireless systems
EP2859767A1 (en) Bandwidth in wireless communications
CN107888255B (en) Method, device and system for sending uplink reference signals, base station and terminal
CN116318587A (en) Shared channel remapping in multiple radio access technology coexistence scenarios
WO2018126987A1 (en) Uplink reference signal sending and receiving processing methods and apparatuses, base station, and terminal
CN110178400B (en) Base station device, terminal device, and communication method
CN108123785A (en) Communication means and system
CN108631835B (en) Signaling indication method and device of transmission mode
KR102489182B1 (en) Communication method and system
US20220232573A1 (en) Method and apparatus for indication of ul parameters in tci state
EP2856818A1 (en) Resource element mapping for wireless transmissions
CN110786071B (en) Method and system for resource allocation of wireless communication system
CN115023990A (en) Port indication method for uplink data channel

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant