CN111106905A - Reference signal transmission method and device - Google Patents
Reference signal transmission method and device Download PDFInfo
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- CN111106905A CN111106905A CN201811253053.9A CN201811253053A CN111106905A CN 111106905 A CN111106905 A CN 111106905A CN 201811253053 A CN201811253053 A CN 201811253053A CN 111106905 A CN111106905 A CN 111106905A
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- H04L5/00—Arrangements affording multiple use of the transmission path
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Abstract
The embodiment of the invention provides a reference signal transmission method and a device, wherein the method comprises the following steps: acquiring a reference signal sequence of a cell; acquiring a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port and acquiring a second complex-valued modulation symbol for transmitting a reference signal of a second antenna port according to the reference signal sequence; and transmitting the reference signal of the first antenna port through the first complex-valued modulation symbol, and transmitting the reference signal of the second antenna port through the second complex-valued modulation symbol. The embodiment of the invention realizes the transmission of the reference signal in the multi-antenna mode.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a reference signal transmission method and device.
Background
A broadband transmission system based on discrete narrow-band aggregation is suitable for a narrow-band planning frequency band, can realize flexible aggregation use of narrow-band resources without changing the existing frequency use mode, and realizes broadband transmission so as to meet the requirements of broadband services in the industry. In the wideband transmission system based on discrete narrowband aggregation, the radio frame structure is as shown in fig. 1:
referring to fig. 1, in the time domain, the length of a radio frame is 25ms, and one radio frame is composed of 5 subframes with the length of 5ms, where subframe 0 is a downlink subframe, and subframes 2, 3, and 4 are uplink subframes; the subframe 1 is a special subframe and includes a downlink domain, a guard interval and an uplink domain. In addition, the downlink transmission resource of the wideband transmission system based on the discrete narrowband aggregation includes the sum of all the symbols of the subframe 0 and the symbols of the downlink domain of the special subframe in the time domain, and the uplink transmission resource includes the sum of the symbols of the subframes 2, 3, 4 and the uplink domain of the special subframe in the time domain. Wherein each subframe comprises N symbols1。
In the frequency domain, a 25kHz physical channel is defined as a sub-band. Each sub-band of 25kHz is divided into N2And (4) sub-carriers.
In addition, the signal may be represented by a resource grid, as shown in fig. 2, which is a schematic diagram of a downlink resource grid. In fig. 2, each subframe includes N symbols1The number of subcarriers is N2And the minimum resource unit of downlink transmission is a resource element. Where each element in the resource grid is referred to as a resource element, identified by an index (k, l), where the frequency domain index k is 0, …, N2-1, time domain index l ═ 0, …, N1-1. The value of a resource element (k, l) may be expressed as a complex number ak，1. A corresponding to unused resource elementsk，1Should be set to 0.
In the broadband transmission system based on the discrete narrowband aggregation, a reference signal transmission mode in a single antenna mode of the broadband transmission system based on the discrete narrowband aggregation is proposed in the prior art, but a reference signal transmission mode in a multi-antenna mode is urgently needed to be proposed based on improvement of transmission resource utilization rate and downlink receiving reliability.
Disclosure of Invention
The embodiment of the invention provides a reference signal transmission method and a reference signal transmission device, which are used for realizing the transmission of reference signals in a multi-antenna mode.
In a first aspect, an embodiment of the present invention provides a reference signal transmission method, where the method includes:
acquiring a reference signal sequence of a cell;
acquiring a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port and acquiring a second complex-valued modulation symbol for transmitting a reference signal of a second antenna port according to the reference signal sequence;
and transmitting the reference signal of the first antenna port through the first complex-valued modulation symbol, and transmitting the reference signal of the second antenna port through the second complex-valued modulation symbol.
In a second aspect, an embodiment of the present invention provides a reference signal transmission apparatus, including:
a first obtaining module, configured to obtain a reference signal sequence of a cell;
a second obtaining module, configured to obtain, according to the reference signal sequence, a first complex-valued modulation symbol used for transmitting a reference signal of a first antenna port, and obtain a second complex-valued modulation symbol used for transmitting a reference signal of a second antenna port;
a transmission module, configured to transmit the reference signal of the first antenna port through the first complex-valued modulation symbol, and transmit the reference signal of the second antenna port through the second complex-valued modulation symbol.
In a third aspect, an embodiment of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the reference signal transmission method when executing the computer program.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the reference signal transmission method.
According to the reference signal transmission method and device provided by the embodiment of the invention, the reference signal sequence of the cell is obtained, the first complex value modulation symbol used for transmitting the reference signal of the first antenna port is obtained according to the reference signal sequence, the second complex value modulation symbol used for transmitting the reference signal of the second antenna port is obtained, then the first complex value modulation symbol transmits the reference signal of the first antenna port, and the second complex value modulation symbol transmits the reference signal of the second antenna port, so that the transmission of the reference signal in a multi-antenna mode is realized, and the utilization rate of transmission resources and the reliability of downlink receiving are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 shows a radio frame structure of a wideband transmission system based on discrete narrowband aggregation in the prior art;
fig. 2 is a diagram illustrating a downlink resource grid in the prior art;
FIG. 3 is a flowchart illustrating steps of a method for reference signal transmission according to an embodiment of the present invention;
fig. 4 is a distribution diagram of a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port according to an embodiment of the present invention;
fig. 5 is a diagram illustrating a distribution of second complex-valued modulation symbols for transmitting a reference signal of a second antenna port according to an embodiment of the present invention;
FIG. 6 is a block diagram of a reference signal transmission apparatus according to an embodiment of the present invention;
fig. 7 is a schematic physical structure diagram of an electronic device in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 3, which is a flowchart illustrating steps of a reference signal transmission method according to an embodiment of the present invention, the method includes the following steps:
step 301: a reference signal sequence of a cell is acquired.
In this step, specifically, when the base station needs to send the reference signal of the cell, the base station may acquire the reference signal sequence of the cell transmitted on the subband.
Step 302: according to the reference signal sequence, a first complex-valued modulation symbol used for transmitting a reference signal of a first antenna port is obtained, and a second complex-valued modulation symbol used for transmitting a reference signal of a second antenna port is obtained.
In this step, specifically, when obtaining a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port and obtaining a second complex-valued modulation symbol for transmitting a reference signal of a second antenna port according to a reference signal sequence, the obtaining may be performed by the following formula:
L＝l+nsf×N1；
RL(nRB) Is represented in sub-band nRBThe transmitted reference signal sequence; specifically, L represents a reference signal in a reference signal sequence;
p denotes an antenna port, and when p is 0,
a first complex-valued modulation symbol representing a reference signal for transmitting a first antenna port; when p is equal to 1, the compound is,
representing reference signals for transmission of a second antenna portA second complex-valued modulation symbol;
nsfindicates the subframe number occupied by the reference signal sequence on the radio frame, and nsf＝0,1；
N1Indicating the number of symbols in a subframe;
l denotes a symbol number occupied by a reference signal sequence within a subframe, wherein,
when p is equal to 0, the compound is,
when p is equal to 1, the compound is,
k denotes the reference signal sequence in subband nRBThe index of the inter-occupied sub-carriers, wherein,
k＝(V+L)modN2；
V＝NidmodN2；
N2representing a subband nRBNumber of inner subcarriers, NidRepresenting the physical cell identity of the cell.
Specifically, referring to fig. 4, a schematic diagram of a distribution of a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port according to the above formula is shown, where the diagram shows a resource grid distribution of the reference signal of the first antenna port in time domain and frequency domain, where the reference signal of the first antenna port is distributed in a downlink domain of subframe 0 and subframe 1 of a downlink transmission resource; in addition, the value of V is related to the physical cell identity of the cell, thereby avoiding the problem that the determined first complex-valued modulation symbol is easy to collide with the first complex-valued modulation symbols corresponding to the reference signal sequences of other cells.
Further, referring to fig. 5, the resource grid distribution of the reference signals of the second antenna port in the time domain and the frequency domain is shown, wherein the reference signals of the second antenna port are distributed in the downlink domain of subframe 0 and subframe 1 of the downlink transmission resource; in addition, the value of V is related to the physical cell identity of the cell, thereby avoiding the problem that the determined second complex-valued modulation symbol is easy to collide with the second complex-valued modulation symbols corresponding to the reference signal sequences of other cells.
By combining fig. 4 and fig. 5, it can be obtained that the reference signal in the multi-antenna mode is mapped in the time domain and the frequency domain by the resource grid distribution of the reference signal shown in fig. 4 and fig. 5, so that the transmission of the reference signal in the multi-antenna mode is realized, and the utilization rate of transmission resources and the reliability of downlink reception are improved.
Thus, by referring to the signal sequence RL(nRB) And mapping the complex-valued modulation symbols to the first antenna port and the second antenna port to be used as downlink reference signals of the wireless frame, so that the design of the reference signals under multiple antennas is realized.
Step 303: transmitting the reference signal of the first antenna port through the first complex-valued modulation symbol, and transmitting the reference signal of the second antenna port through the second complex-valued modulation symbol.
In this step, specifically, after the first complex-valued modulation symbol and the second complex-valued modulation symbol are obtained, the reference signal of the first antenna port may be transmitted through the first complex-valued modulation symbol, and the reference signal of the second antenna port may be transmitted through the second complex-valued modulation symbol, so as to implement transmission of the reference signal in the multi-antenna mode, thereby improving the possibility of downlink reception and improving the resource utilization rate.
In addition, specifically, the terminal may receive the reference signal of the first antenna port on the first complex-valued modulation symbol, and receive the reference signal of the second antenna port on the second complex-valued modulation symbol, so as to implement receiving of the downlink reference signal.
In this way, in this embodiment, by obtaining the reference signal sequence of the cell, obtaining the first complex modulation symbol for transmitting the reference signal of the first antenna port according to the reference signal sequence, obtaining the second complex modulation symbol for transmitting the reference signal of the second antenna port, then transmitting the reference signal of the first antenna port by the first complex modulation symbol, and transmitting the reference signal of the second antenna port by the second complex modulation symbol, the transmission of the reference signal in the multi-antenna mode is implemented, and the utilization rate of the transmission resources and the reliability of downlink reception are improved.
In addition, as shown in fig. 6, a block diagram of a reference signal transmission apparatus in an embodiment of the present invention is shown, where the apparatus includes:
a first obtaining module 601, configured to obtain a reference signal sequence of a cell;
a second obtaining module 602, configured to obtain, according to the reference signal sequence, a first complex-valued modulation symbol used for transmitting a reference signal of a first antenna port, and obtain a second complex-valued modulation symbol used for transmitting a reference signal of a second antenna port;
a transmitting module 603, configured to transmit the reference signal of the first antenna port through the first complex-valued modulation symbol, and transmit the reference signal of the second antenna port through the second complex-valued modulation symbol.
Optionally, the second obtaining module 602 is configured to,
according to the reference signal sequence, acquiring a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port and acquiring a second complex-valued modulation symbol for transmitting a reference signal of a second antenna port by the following formula;
L＝l+nsf×N1；
RL(nRB) Is represented in sub-band nRBThe transmitted reference signal sequence;
p denotes an antenna port, and when p is 0,
a first complex-valued modulation symbol representing a reference signal for transmitting a first antenna port; when p is equal to 1, the compound is,
indicating a reference signal for transmitting a second antenna portA second complex valued modulation symbol of the sign;
nsfindicates the subframe number occupied by the reference signal sequence on the radio frame, and nsf＝0,1；
N1Indicating the number of symbols in a subframe;
l denotes a symbol number occupied by a reference signal sequence within a subframe, wherein,
when p is equal to 0, the compound is,
when p is equal to 1, the compound is,
k denotes the reference signal sequence in subband nRBThe index of the inter-occupied sub-carriers, wherein,
k＝(V+L)modN2；
V＝NidmodN2；
N2representing a subband nRBNumber of inner subcarriers, NidRepresenting the physical cell identity of the cell.
According to the transmission device of the reference signal provided by the embodiment of the invention, the reference signal sequence of the cell is obtained, the first complex value modulation symbol used for transmitting the reference signal of the first antenna port is obtained according to the reference signal sequence, the second complex value modulation symbol used for transmitting the reference signal of the second antenna port is obtained, then the first complex value modulation symbol transmits the reference signal of the first antenna port, and the second complex value modulation symbol transmits the reference signal of the second antenna port, so that the transmission of the reference signal in a multi-antenna mode is realized, and the utilization rate of transmission resources and the reliability of downlink receiving are improved.
In addition, as shown in fig. 7, an entity structure diagram of the electronic device provided in the embodiment of the present invention is shown, where the electronic device may include: a processor (processor)710, a communication Interface (Communications Interface)720, a memory (memory)730, and a communication bus 740, wherein the processor 710, the communication Interface 720, and the memory 730 communicate with each other via the communication bus 740. The processor 710 may invoke a computer program stored on the memory 730 and executable on the processor 710 to perform the methods provided by the embodiments described above, including, for example: acquiring a reference signal sequence of a cell; acquiring a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port and acquiring a second complex-valued modulation symbol for transmitting a reference signal of a second antenna port according to the reference signal sequence; and transmitting the reference signal of the first antenna port through the first complex-valued modulation symbol, and transmitting the reference signal of the second antenna port through the second complex-valued modulation symbol.
In addition, the logic instructions in the memory 730 can be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the method provided in the foregoing embodiments when executed by a processor, and the method includes: acquiring a reference signal sequence of a cell; acquiring a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port and acquiring a second complex-valued modulation symbol for transmitting a reference signal of a second antenna port according to the reference signal sequence; and transmitting the reference signal of the first antenna port through the first complex-valued modulation symbol, and transmitting the reference signal of the second antenna port through the second complex-valued modulation symbol.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A method for reference signal transmission, the method comprising:
acquiring a reference signal sequence of a cell;
acquiring a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port and acquiring a second complex-valued modulation symbol for transmitting a reference signal of a second antenna port according to the reference signal sequence;
and transmitting the reference signal of the first antenna port through the first complex-valued modulation symbol, and transmitting the reference signal of the second antenna port through the second complex-valued modulation symbol.
2. The method of claim 1, wherein obtaining a first complex-valued modulation symbol for transmitting a reference signal for a first antenna port and obtaining a second complex-valued modulation symbol for transmitting a reference signal for a second antenna port according to the reference signal sequence comprises:
according to the reference signal sequence, acquiring a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port and acquiring a second complex-valued modulation symbol for transmitting a reference signal of a second antenna port by the following formula;
L＝l+nsf×N1；
RL(nRB) Is represented in sub-band nRBThe transmitted reference signal sequence;
p denotes an antenna port, and when p is 0,
a first complex-valued modulation symbol representing a reference signal for transmitting a first antenna port; when p is equal to 1, the compound is,
a second complex-valued modulation symbol representing a reference signal for transmission to a second antenna port;
nsfindicating occupancy of reference signal sequences over radio framesIs a subframe number of, and nsf＝0,1；
N1Indicating the number of symbols in a subframe;
l denotes a symbol number occupied by a reference signal sequence within a subframe, wherein,
when p is equal to 0, the compound is,
when p is equal to 1, the compound is,
k denotes the reference signal sequence in subband nRBThe index of the inter-occupied sub-carriers, wherein,
k＝(V+L)modN2；
V＝NidmodN2；
N2representing a subband nRBNumber of inner subcarriers, NidRepresenting the physical cell identity of the cell.
3. An apparatus for reference signal transmission, the apparatus comprising:
a first obtaining module, configured to obtain a reference signal sequence of a cell;
a second obtaining module, configured to obtain, according to the reference signal sequence, a first complex-valued modulation symbol used for transmitting a reference signal of a first antenna port, and obtain a second complex-valued modulation symbol used for transmitting a reference signal of a second antenna port;
a transmission module, configured to transmit the reference signal of the first antenna port through the first complex-valued modulation symbol, and transmit the reference signal of the second antenna port through the second complex-valued modulation symbol.
4. The apparatus of claim 3, wherein the second obtaining module is configured to,
according to the reference signal sequence, acquiring a first complex-valued modulation symbol for transmitting a reference signal of a first antenna port and acquiring a second complex-valued modulation symbol for transmitting a reference signal of a second antenna port by the following formula;
L＝l+nsf×N1；
RL(nRB) Is represented in sub-band nRBThe transmitted reference signal sequence;
p denotes an antenna port, and when p is 0,
a first complex-valued modulation symbol representing a reference signal sequence used for transmitting a first antenna port; when p is equal to 1, the compound is,
a second complex-valued modulation symbol representing a reference signal sequence for transmission of a second antenna port;
nsfindicates the subframe number occupied by the reference signal sequence on the radio frame, and nsf＝0,1；
N1Indicating the number of symbols in a subframe;
1 denotes a symbol number occupied by a reference signal sequence within a subframe, wherein,
when p is equal to 0, the compound is,
when p is equal to 1, the compound is,
k denotes the reference signal sequence in subband nRBThe index of the inter-occupied sub-carriers, wherein,
k＝(V+L)modN2；
V＝NidmodN2；
N2representing a subband nRBNumber of inner subcarriers, NidRepresenting the physical cell identity of the cell.
5. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the reference signal transmission method according to claim 1 or 2 are implemented when the computer program is executed by the processor.
6. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the reference signal transmission method according to claim 1 or 2.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431357A (en) * | 2007-11-08 | 2009-05-13 | 大唐移动通信设备有限公司 | Data transmission method and apparatus |
| CN103181114A (en) * | 2012-09-04 | 2013-06-26 | 华为技术有限公司 | Transmission method and apparatus for reference signal |
| EP3174220A1 (en) * | 2010-01-12 | 2017-05-31 | Telefonaktiebolaget LM Ericsson (publ) | A method and transmitter node for transmitting dm-rs pattern |
| CN108141427A (en) * | 2016-03-10 | 2018-06-08 | 华为技术有限公司 | A kind of reference signal production method and device |
-
2018
- 2018-10-25 CN CN201811253053.9A patent/CN111106905A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431357A (en) * | 2007-11-08 | 2009-05-13 | 大唐移动通信设备有限公司 | Data transmission method and apparatus |
| EP3174220A1 (en) * | 2010-01-12 | 2017-05-31 | Telefonaktiebolaget LM Ericsson (publ) | A method and transmitter node for transmitting dm-rs pattern |
| CN103181114A (en) * | 2012-09-04 | 2013-06-26 | 华为技术有限公司 | Transmission method and apparatus for reference signal |
| CN108141427A (en) * | 2016-03-10 | 2018-06-08 | 华为技术有限公司 | A kind of reference signal production method and device |
Non-Patent Citations (2)
| Title |
|---|
| SHUANG WANG等: ""A novel design of reference signal scheme for LTE"", 《2011 SEVENTH INTERNATIONAL CONFERENCE ON NATURAL COMPUTATION》 * |
| 魏旭阳等: ""LTEA中CSI参考信号的DSP实现"", 《广东通信技术》 * |
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