CN109039555B - Method and device used in user and base station of wireless communication - Google Patents

Method and device used in user and base station of wireless communication Download PDF

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CN109039555B
CN109039555B CN201710435249.9A CN201710435249A CN109039555B CN 109039555 B CN109039555 B CN 109039555B CN 201710435249 A CN201710435249 A CN 201710435249A CN 109039555 B CN109039555 B CN 109039555B
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reference signal
sub
allocated
frequency
subcarriers
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CN109039555A (en
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张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method and a device used in a user and a base station of wireless communication. The user equipment receives first information and a first reference signal. Wherein the first information includes K1 bits and K2 bits; k1 bits are respectively used to determine whether K1 subcarrier sets are allocated to the first reference signal, K2 bits are respectively used to determine whether K2 multicarrier symbols are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the K1 bits and the K2 bits being used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used to transmit wireless signals. The method can flexibly support various reference signal configurations based on different technical schemes.

Description

Method and device used in user and base station of wireless communication
Technical Field
The present application relates to a method and an apparatus for transmitting a wireless signal in a wireless communication system, and more particularly, to a method and an apparatus for transmitting a wireless signal in a wireless communication system supporting a reference signal.
Background
In a wireless communication system, a reference signal has been one of the necessary means for securing communication quality. Compared with a conventional LTE (Long Term Evolution) system, the reference signal in the 5G system needs to support more various functions, such as channel state information acquisition, transmission beam scanning, reception beam scanning, fine time domain/frequency domain tracking, phase error tracking, and the like. The multiple functions place higher demands on the reference signal design, which is a problem to be solved.
Disclosure of Invention
The inventor finds out through research that different functions have different requirements on the design of the reference signal, such as different resource mapping patterns, different multiplexing modes, different repetition times in the time domain/frequency domain, and the like, and therefore, the reference signal design of the 5G system must have sufficient flexibility to support various functions. How to design a unified mechanism to configure and allocate resources to reference signals under different functions is a problem to be solved.
The present application discloses a solution to the above-mentioned problems. It should be noted that, without conflict, the embodiments and features in the embodiments in the user equipment of the present application may be applied to the base station, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
The application discloses a method in a user equipment used for wireless communication, characterized by comprising:
-receiving first information;
-receiving a first reference signal;
wherein the first information comprises a first bit string and a second bit string, the first bit string and the second bit string comprising K1 bits and K2 bits, respectively, the K1 and the K2 being positive integers greater than 1, respectively; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by a sender of the first reference signal to transmit wireless signals.
As an embodiment, the above method has a benefit that the first bit string and the second bit string are used to indicate the resource occupancy of the first reference signal in the time domain and the frequency domain, and various resource configuration combinations of the first reference signal in the time-frequency domain can be flexibly represented.
As an embodiment, the above method has a benefit that the determination of the situation that the subcarriers not occupied by the first reference signal are occupied by other wireless signals through the first bit string and the second bit string implicitly indicates the number of repetitions of the first reference signal in the time domain, and reduces the signaling overhead for configuring the first reference signal.
As an embodiment, the above method is advantageous in that the first bit string and the second bit string implicitly indicate whether the resource allocation manner of the first Reference Signal is based on a CSI-RS (Channel State Information-Reference Signal) RE (resource element) pattern unit (component CSI-RS RE patterns), a comb (comb) pattern, or an IFDMA (Interleaved Frequency Division Multiple Access).
For one embodiment, any one of the K1 subcarrier sets includes 1 subcarrier.
As an embodiment, any one of the K1 subcarrier sets includes Q discontinuous subcarriers, and Q is a positive integer greater than 1.
As a sub-embodiment of the above embodiment, the Q discontinuous sub-carriers are equally spaced in the frequency domain.
As a sub-embodiment of the foregoing embodiment, the frequency intervals between any two adjacent subcarriers of the Q discontinuous subcarriers are equal.
As a sub-embodiment of the foregoing embodiment, a frequency interval between any two adjacent subcarriers of the Q discontinuous subcarriers is equal to K1 minus 1.
As a sub-embodiment of the above embodiment, Q is 2.
As a sub-embodiment of the above embodiment, Q is 3.
As a sub-embodiment of the above embodiment, the Q is configurable.
As an embodiment, any one of the K1 subcarrier sets includes P consecutive subcarriers, where P is a positive integer greater than 1.
As a sub-embodiment of the above embodiment, said P is 2.
As a sub-embodiment of the above embodiment, said P is 4.
As a sub-embodiment of the above embodiment, the P is configurable.
As an embodiment, the number of subcarriers included in any two subcarrier sets of the K1 subcarrier sets is equal.
As an embodiment, the K2 multicarrier symbols are consecutive in the time domain.
As an embodiment, the K2 multicarrier symbols are discontinuous in the time domain.
As an embodiment, the subcarrier set corresponding to the bit with the median value of 1 in the K1 bits is allocated to the first reference signal.
As an embodiment, the multicarrier symbol corresponding to the bit with the median value of 1 in the K2 bits is allocated to the first reference signal.
As an embodiment, the first frequency-domain sub-Resource includes S1 consecutive PRBs (Physical Resource blocks), and the S1 is a positive integer.
As a sub-embodiment of the above embodiment, said S1 is equal to 1.
As a sub-embodiment of the above embodiment, the S1 is greater than 1.
As a sub-embodiment of the above embodiment, the S1 is configurable.
For one embodiment, the first frequency-domain sub-resources comprise S2 consecutive subcarriers, and the S2 is a positive integer greater than 1.
As a sub-embodiment of the above embodiment, the S2 is equal to 12.
As a sub-embodiment of the above embodiment, the S2 is a positive integer multiple of 12.
As a sub-embodiment of the above embodiment, the S2 is configurable.
As one embodiment, the first time domain sub-resource includes a positive integer number of consecutive multicarrier symbols.
As one embodiment, the first time domain sub-resource includes a positive integer number of non-contiguous multicarrier symbols.
As an embodiment, the first time domain sub-resource consists of the K2 multicarrier symbols.
As an embodiment, the first time domain sub-resource includes a number of multicarrier symbols greater than the K2.
As an embodiment, the K1 bits are arranged in sequence in the first bit string.
As an embodiment, the K2 bits are arranged in sequence in the second bit string.
As an embodiment, only one of the K1 subcarrier sets is allocated to the first reference signal.
For one embodiment, a plurality of the K1 subcarrier sets are allocated to the first reference signal.
As an embodiment, only one of the K2 multicarrier symbols is allocated to the first reference signal.
As an embodiment, a plurality of the K2 multicarrier symbols are allocated to the first reference signal.
As an embodiment, the multicarrier symbol is an OFDM (orthogonal frequency Division Multiplexing) symbol.
As an embodiment, the multicarrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.
As an embodiment, the multicarrier symbol is an FBMC (Filter Bank Multi Carrier) symbol.
As an embodiment, the first frequency-domain resource comprises a positive integer number of consecutive PRBs.
As an embodiment, the first frequency-domain resource comprises a positive integer number of discontinuous PRBs.
As one embodiment, the first frequency domain resource includes an entire system bandwidth.
For one embodiment, the first frequency domain resource comprises a portion of a system bandwidth.
As one embodiment, the first reference signal is wideband.
As one embodiment, the system bandwidth is divided into a positive integer number of frequency domain regions, the first reference signal occurs over all frequency domain regions within the system bandwidth, and any one of the positive integer number of frequency domain regions includes a positive integer number of consecutive subcarriers.
As one embodiment, the first Reference Signal includes a CSI-RS (Channel State Information-Reference Signal).
As one embodiment, the first Reference signal includes DMRS (DeModulation Reference Signals).
As one embodiment, the first reference signal includes a TRS (fine/frequency tracking reference signal).
As one embodiment, the first reference signal includes PTRS (Phase error tracking reference signal).
As one embodiment, the first reference signal is narrowband.
As an embodiment, the system bandwidth is divided into a positive integer number of frequency domain regions, and the first reference signal only appears on a partial frequency domain region.
As one embodiment, the first information explicitly indicates the first bit string.
As one embodiment, the first information implicitly indicates the first bit string.
As one embodiment, the first information explicitly indicates the second bit string.
As one embodiment, the first information implicitly indicates the second bit string.
As an embodiment, the first information is carried by higher layer signaling.
As an embodiment, the first information is carried by RRC (Radio Resource Control) signaling.
As an embodiment, the first information is transmitted on a downlink physical layer data channel (i.e. a downlink channel that can be used to carry physical layer data).
As a sub-embodiment of the foregoing embodiment, the Downlink Physical layer data CHannel is a PDSCH (Physical Downlink Shared CHannel).
As a sub-embodiment of the foregoing embodiment, the downlink physical layer data channel is sPDSCH (short PDSCH).
As a sub-embodiment of the above embodiment, the downlink physical layer data channel is NR-PDSCH (new radio PDSCH).
As a sub-embodiment of the above embodiment, the downlink physical layer data channel is NB-PDSCH (NarrowBand band PDSCH).
As an embodiment, the first information is carried by physical layer signaling.
As an embodiment, the first information is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).
As a sub-embodiment of the foregoing embodiment, the downlink Physical layer control CHannel is a PDCCH (Physical downlink control CHannel).
As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is an sPDCCH (short PDCCH).
As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is an NR-PDCCH (New Radio PDCCH).
As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is an NB-PDCCH (narrow band PDCCH).
For one embodiment, the K1 is configurable.
As an example, K1 is equal to 2.
As an example, K1 is equal to 3.
As an example, K1 is equal to 4.
As an example, K1 is equal to 6.
As an example, K1 is equal to 12.
For one embodiment, the K2 is configurable.
As an example, K2 is equal to 2.
As an example, K2 is equal to 4.
As an example, K2 is equal to 10.
As an example, K2 is equal to 12.
Specifically, according to an aspect of the present application, it is characterized in that the first bit string and the second bit string are respectively composed of the K1 bits and the K2 bits.
Specifically, according to an aspect of the present application, the first frequency-domain resource includes a plurality of frequency-domain sub-resources, the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
As an embodiment, the first reference signal is allocated with M second subcarriers in second frequency domain subcarriers, the first reference signal is allocated with M third subcarriers in third frequency domain subcarriers, the M second subcarriers and the M third subcarriers are in one-to-one correspondence, the second frequency domain subcarriers and the third frequency domain subcarriers are any two frequency domain subcarriers in the plurality of frequency domain subcarriers, respectively, and an index of any one second subcarrier in the M second frequency domain subcarriers in the second frequency domain subcarriers is equal to an index of the corresponding third subcarrier in the third frequency domain subcarriers. And M is a positive integer.
As an embodiment, the M is less than or equal to the K1.
As an embodiment, the plurality of frequency domain sub-resources are contiguous in the frequency domain.
As one embodiment, the plurality of frequency domain sub-resources are discontinuous in the frequency domain.
As an embodiment, the number of subcarriers included in any two of the plurality of frequency-domain sub-resources is the same.
As an embodiment, any one of the plurality of frequency-domain sub-resources comprises S1 consecutive PRBs, the S1 being a positive integer.
As an embodiment, any one of the plurality of frequency-domain sub-resources comprises S2 consecutive subcarriers, the S2 being a positive integer greater than 1.
As an embodiment, any two of the plurality of frequency domain sub-resources are orthogonal (non-overlapping) in the frequency domain.
Specifically, according to an aspect of the present application, the method further includes the steps of:
-receiving second information;
wherein the second information is used to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
As an embodiment, the plurality of time domain sub-resources occur periodically.
As an embodiment, the time intervals between any two adjacent time domain sub-resources of the plurality of time domain sub-resources are equal.
As an embodiment, the plurality of time-domain sub-resources are discontinuous in the time domain.
As an embodiment, the first reference signal is allocated with N second multicarrier symbols in a second time-domain sub-resource, the first reference signal is allocated with N third multicarrier symbols in a third time-domain sub-resource, the N second multicarrier symbols and the N third multicarrier symbols are in one-to-one correspondence, the second time-domain sub-resource and the third time-domain sub-resource are any two time-domain sub-resources of the multiple time-domain sub-resources, respectively, and an index of any one second multicarrier symbol of the N second multicarrier symbols in the second time-domain sub-resource is equal to an index of the corresponding third multicarrier symbol in the third time-domain sub-resource. And N is a positive integer.
As an embodiment, the N is less than or equal to the K2.
As an embodiment, any two time domain sub-resources of the plurality of time domain sub-resources comprise an equal number of multicarrier symbols.
As an embodiment, any one of the plurality of time domain sub-resources comprises a positive integer number of consecutive multicarrier symbols.
As an embodiment, any one of the plurality of time domain sub-resources comprises a positive integer number of non-contiguous multicarrier symbols.
As an embodiment, any two time domain sub-resources of the plurality of time domain sub-resources are orthogonal (non-overlapping) in time domain.
As an embodiment, the first reference signal occurs periodically in the time domain.
As one embodiment, the second information is used to determine the first frequency domain resource.
As an embodiment, the second information is carried by higher layer signaling.
As an embodiment, the second information is carried by RRC signaling.
As an embodiment, the second information is transmitted on a downlink physical layer data channel (i.e. a downlink channel that can be used to carry physical layer data).
As a sub-embodiment of the above-mentioned embodiment, the downlink physical layer data channel is a PDSCH.
As a sub-embodiment of the above embodiment, the downlink physical layer data channel is sPDSCH.
As a sub-embodiment of the above embodiment, the downlink physical layer data channel is NR-PDSCH.
As a sub-embodiment of the above embodiment, the downlink physical layer data channel is an NB-PDSCH.
As an embodiment, the second information is carried by physical layer signaling.
As an embodiment, the second information is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).
As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is a PDCCH.
As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is sPDCCH.
As a sub-embodiment of the above-mentioned embodiment, the downlink physical layer control channel is an NR-PDCCH.
As a sub-embodiment of the foregoing embodiment, the downlink physical layer control channel is an NB-PDCCH.
Specifically, according to an aspect of the present application, if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
As an example, if the number of bits of which the median of K1 bits is 1 is greater than 1, the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
As an example, if there are multiple subcarrier sets among the K1 subcarrier sets allocated to the first reference signal, the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
Specifically, according to one aspect of the present application, if the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is the same, the second bit string is used to determine the first hypothesis.
As an example, if the number of bits of which the median of the K1 bits is 1 is equal to 1, the second bit string is used to determine the first hypothesis.
As an example, if only one of the K1 subcarrier sets is allocated to the first reference signal, the second bit string is used to determine the first hypothesis.
As an example, if the number of bits of which the median of K2 bits is 1 is equal to 1, the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
As an example, if only 1 of the K2 multicarrier symbols is allocated to the first reference signal, the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
As an example, if the maximum length of the consecutive bit string with the median value of 1 in the K2 bits is equal to 1, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
As an example, if the maximum length of a consecutive multicarrier symbol string of the K2 multicarrier symbols allocated to the first reference signal is equal to 1, the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
As an embodiment, if the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is the same and the number of bits of which the median of K2 bits is 1 is greater than 1, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource cannot be used by a sender of the first reference signal to transmit wireless signals.
As an embodiment, if the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is the same and multiple ones of the K2 multicarrier symbols are allocated to the first reference signal, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource cannot be used by a sender of the first reference signal to transmit wireless signals.
As an embodiment, if the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is the same and the maximum length of the consecutive bit string with the median of 1 in the K2 bits is greater than 1, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource cannot be used by a sender of the first reference signal to transmit wireless signals.
As an embodiment, if the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is the same and the maximum length of the consecutive multicarrier symbol string allocated to the first reference signal in the K2 multicarrier symbols is greater than 1, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource cannot be used by a sender of the first reference signal to transmit wireless signals.
As an example, if the number of bits with a median of 1 in the K1 bits is equal to 1 and the number of bits with a median of 1 in the K2 bits is greater than 1, the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource cannot be used by a sender of the first reference signal to transmit wireless signals.
As an example, if only one of the K1 subcarrier sets is allocated to the first reference signal and multiple of the K2 multicarrier symbols are allocated to the first reference signal, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource cannot be used by a sender of the first reference signal to transmit wireless signals.
As an example, if the number of bits of the K1 bits whose median is 1 is equal to 1 and a number of consecutive bits of the K2 bits have a value of 1, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource cannot be used by a sender of the first reference signal to transmit wireless signals.
As an example, if only one of the K1 subcarrier sets is allocated to the first reference signal and a plurality of consecutive ones of the K2 multicarrier symbols are allocated to the first reference signal, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource cannot be used by a sender of the first reference signal to transmit wireless signals.
In particular, according to one aspect of the present application, it is characterized in that if said first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by a sender of the first reference signal for transmitting a wireless signal, the first reference signal comprising R sub-signals occupying consecutive and same-length time domain resources within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated being R-1 subcarriers, the R being a positive integer.
As an example, the R is equal to the K1.
As an embodiment, time domain resources occupied by the R sub-signals are mutually orthogonal (non-overlapping).
As an embodiment, the frequency domain resources occupied by the R sub-signals are the same.
As an embodiment, the time domain resources occupied by any one of the R sub-signals within one multicarrier symbol are continuous.
As an embodiment, the length of the time domain resource occupied by any of the R sub-signals within one multicarrier symbol is equal to the duration of one multicarrier symbol minus the duration of CP (cyclic prefix), and then divided by the R.
Specifically, according to an aspect of the present application, the first information includes a third bit string, and the third bit string is used to determine whether the user equipment can assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol, where one antenna port group includes a positive integer number of antenna ports.
As an embodiment, the above method has a benefit that, when the first reference signal is based on IFDMA, it is supported that a plurality of repetitions of the first reference signal in a time domain is flexibly used for transmission beam scanning or reception beam scanning, which improves design flexibility of the first reference signal.
As an embodiment, the third bit string comprises one bit.
As an example, if the value of the third bit string is equal to the first value, the user equipment can assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol; otherwise the user equipment cannot assume that the R sub-signals are transmitted by the same antenna port group within one multi-carrier symbol.
As a sub-embodiment of the above embodiment, the first value is equal to 1.
As a sub-embodiment of the above embodiment, the first value is equal to 0.
As an embodiment, an antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients from the plurality of antennas to the antenna port form a beamforming vector corresponding to the antenna port.
As an embodiment, one antenna port group includes 1 antenna port.
For one embodiment, one antenna port group includes a plurality of antenna ports.
As an embodiment, the user equipment can assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol, and the user equipment can assume that any one of the R sub-signals is transmitted by the same antenna port group within a different multicarrier symbol.
As an embodiment, the user equipment may assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol, and the user equipment may not assume that any of the R sub-signals are transmitted by the same antenna port group within different multicarrier symbols.
As an embodiment, the user equipment cannot assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol, and the user equipment can assume that any one of the R sub-signals is transmitted by the same antenna port group within a different multicarrier symbol.
As an embodiment, the user equipment cannot assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol, and the user equipment cannot assume that any one of the R sub-signals is transmitted by the same antenna port group within a different multicarrier symbol.
As an embodiment, the fact that the user equipment cannot assume that the R sub-signals are transmitted by the same antenna port group within one multi-carrier symbol means that: the small scale characteristics of the radio channel experienced by the signal transmitted by the first antenna port cannot be used by the user equipment to infer the small scale characteristics of the radio channel experienced by the signal transmitted by the second antenna port. The first antenna port and the second antenna port are respectively any one of a first antenna port group and a second antenna port group, and the first antenna port group and the second antenna port group are respectively used for sending any two sub-signals in the R sub-signals in one multi-carrier symbol. The small scale characteristic comprises a channel impulse response.
As an embodiment, the fact that the user equipment cannot assume that the R sub-signals are transmitted by the same antenna port group within one multi-carrier symbol means that: the user equipment cannot perform joint channel estimation using the reference signal transmitted by the first antenna port and the reference signal transmitted by the second antenna port. The first antenna port and the second antenna port are respectively any one of a first antenna port group and a second antenna port group, and the first antenna port group and the second antenna port group are respectively used for sending any two sub-signals in the R sub-signals in one multi-carrier symbol.
As an embodiment, the fact that the user equipment cannot assume that the R sub-signals are transmitted by the same antenna port group within one multi-carrier symbol means that: the ue assumes that the beamforming vector corresponding to the first antenna port is the same as the beamforming vector corresponding to the second antenna port. The first antenna port and the second antenna port are respectively any one of a first antenna port group and a second antenna port group, and the first antenna port group and the second antenna port group are respectively used for sending any two sub-signals in the R sub-signals in one multi-carrier symbol.
In particular, according to one aspect of the application, it is characterized in that said third bit string is used for determining a first time window, a portion of a first subsignal within a first multicarrier symbol and outside said first time window is used for determining a first reception quality, said first subsignal being one of said R subsignals, said first multicarrier symbol being one of said K2 multicarrier symbols allocated to said first reference signal.
As an embodiment, when multiple repetitions of the first reference signal in the time domain are used for transmission beam scanning, the base station needs a certain time to complete switching between transmission beams, and a target receiver of the first reference signal needs to know the time when the switching occurs, and abandons a wireless signal received in the middle of the switching process, thereby avoiding a reception error caused by instability of the transmission beam during the switching process. The above method has an advantage in that the target receiver of the first reference signal can be informed of the time when the transmission beam switching occurs by using the third bit string.
As an embodiment, the first time window includes R sub-time windows in the first multicarrier symbol, the R sub-time windows occupy equal-length and discontinuous time-domain resources, and time intervals between any two adjacent sub-time windows in the R sub-time windows are equal.
As an embodiment, the time domain resources occupied by any one of the R sub-time windows are continuous.
As an embodiment, the R sub-time windows respectively correspond to the R sub-signals one to one.
As an embodiment, any one of the R sub-time windows is located within a time domain resource occupied by a corresponding sub-signal in the first multicarrier symbol.
As an embodiment, measurements for a portion of the first sub-signal within the first multicarrier symbol and outside the first time window are used to determine a first reception quality.
As an embodiment, the first reception quality is equal to RSRP (reference signal received power) of a portion of the first sub-signal within the first multicarrier symbol and outside the first time window.
As an embodiment, the first reception Quality is equal to a Reference Signal Received Quality (RSRQ) of a portion of the first sub-Signal within the first multicarrier symbol and outside of the first time window.
As an embodiment, the length of the time domain resource occupied by the first time window is equal to 0.
As an embodiment, the length of the time domain resource occupied by the first time window is greater than 0.
As an embodiment, the third bit string indicates whether a length of a time domain resource occupied by the first time window is equal to 0.
As an embodiment, the third bit string indicates a length and a position in a time domain of the first time window.
As an embodiment, a position of each of the R sub-time windows in the first multicarrier symbol is predetermined.
For one embodiment, the third bit string indicates a length of each of the R sub-time windows.
As an embodiment, the length of each of the R sub-time windows is one of T candidate lengths, the third bit string indicates the length of each of the R sub-time windows among the T candidate lengths, and T is a positive integer greater than 1.
As a sub-embodiment of the above embodiment, said T is equal to 2.
As a sub-embodiment of the above embodiment, the T candidate lengths include 0.
As an embodiment, the third bit string indicates a position of each of the R sub-time windows in the first multicarrier symbol.
The present application discloses a method in a base station used for wireless communication, characterized by comprising:
-transmitting the first information;
-transmitting a first reference signal;
wherein the first information comprises a first bit string and a second bit string, the first bit string and the second bit string comprising K1 bits and K2 bits, respectively, the K1 and the K2 being positive integers greater than 1, respectively; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by the base station for transmitting wireless signals.
For one embodiment, any one of the K1 subcarrier sets includes 1 subcarrier.
As an embodiment, any one of the K1 subcarrier sets includes Q discontinuous subcarriers, and Q is a positive integer greater than 1.
As an embodiment, the K2 multicarrier symbols are consecutive in the time domain.
As an embodiment, the K2 multicarrier symbols are discontinuous in the time domain.
Specifically, according to an aspect of the present application, it is characterized in that the first bit string and the second bit string are respectively composed of the K1 bits and the K2 bits.
Specifically, according to an aspect of the present application, the first frequency-domain resource includes a plurality of frequency-domain sub-resources, the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
As an embodiment, the plurality of frequency domain sub-resources are contiguous in the frequency domain.
As one embodiment, the plurality of frequency domain sub-resources are discontinuous in the frequency domain.
As an embodiment, the number of subcarriers included in any two of the plurality of frequency-domain sub-resources is the same.
Specifically, according to an aspect of the present application, the method further includes the steps of:
-transmitting the second information;
wherein the second information is used to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
As an embodiment, the plurality of time domain sub-resources occur periodically.
As an embodiment, the time intervals between any two adjacent time domain sub-resources of the plurality of time domain sub-resources are equal.
As an embodiment, any two time domain sub-resources of the plurality of time domain sub-resources comprise an equal number of multicarrier symbols.
Specifically, according to an aspect of the present application, if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource may be used by the base station to transmit wireless signals.
Specifically, according to one aspect of the present application, if the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is the same, the second bit string is used to determine the first hypothesis.
In particular, according to one aspect of the present application, it is characterized in that if said first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by the base station for transmitting wireless signals, the first reference signal comprises R sub-signals occupying time domain resources which are continuous and have the same length within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is R-1 subcarrier, and R is a positive integer.
As an embodiment, the time domain resources occupied by any one of the R sub-signals within one multicarrier symbol are continuous.
In particular, according to one aspect of the present application, the first information comprises a third bit string, which is used to determine whether the intended recipient of the first reference signal can assume that the R sub-signals are transmitted within one multi-carrier symbol by the same antenna port group, one antenna port group comprising a positive integer number of antenna ports.
As an embodiment, the third bit string comprises one bit.
In particular, according to one aspect of the application, it is characterized in that said third bit string is used for determining a first time window, a portion of a first subsignal within a first multicarrier symbol and outside said first time window is used for determining a first reception quality, said first subsignal being one of said R subsignals, said first multicarrier symbol being one of said K2 multicarrier symbols allocated to said first reference signal.
As an embodiment, the length of the time domain resource occupied by the first time window is equal to 0.
As an embodiment, the length of the time domain resource occupied by the first time window is greater than 0.
As an embodiment, the third bit string indicates whether a length of a time domain resource occupied by the first time window is equal to 0.
The application discloses a user equipment used for wireless communication, which is characterized by comprising:
-a first receiving module receiving first information;
-a second receiving module receiving a first reference signal;
wherein the first information comprises a first bit string and a second bit string, the first bit string and the second bit string comprising K1 bits and K2 bits, respectively, the K1 and the K2 being positive integers greater than 1, respectively; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by a sender of the first reference signal to transmit wireless signals.
As an embodiment, the above user equipment for wireless communication is characterized in that the first bit string and the second bit string are respectively composed of the K1 bits and the K2 bits.
As an embodiment, the user equipment used for wireless communication is characterized in that the first frequency-domain resource includes a plurality of frequency-domain sub-resources, the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
As an embodiment, the user equipment used for wireless communication is characterized in that the first receiving module further receives second information. Wherein the second information is used to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
As an embodiment, the user equipment used for wireless communication is characterized in that if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
As an embodiment, the user equipment used for wireless communication is characterized in that the second bit string is used for determining the first hypothesis if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are the same.
As an embodiment, the above-mentioned user equipment for wireless communication is characterized in that, if the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by a sender of the first reference signal for transmitting a wireless signal, the first reference signal comprising R sub-signals occupying consecutive and same-length time domain resources within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated being R-1 subcarriers, the R being a positive integer.
As an embodiment, the user equipment used for wireless communication is characterized in that the first information includes a third bit string, and the third bit string is used for determining whether the user equipment can assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol, and one antenna port group includes a positive integer number of antenna ports.
As an embodiment, the above user equipment for wireless communication is characterized in that the third bit string is used to determine a first time window, a portion of a first sub-signal within a first multi-carrier symbol and outside the first time window is used to determine a first reception quality, the first sub-signal is one of the R sub-signals, and the first multi-carrier symbol is one of the K2 multi-carrier symbols allocated to the first reference signal.
The application discloses a base station device used for wireless communication, which is characterized by comprising:
-a first sending module to send a first information;
-a second transmitting module for transmitting the first reference signal;
wherein the first information comprises a first bit string and a second bit string, the first bit string and the second bit string comprising K1 bits and K2 bits, respectively, the K1 and the K2 being positive integers greater than 1, respectively; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by the base station for transmitting wireless signals.
As an embodiment, the above-mentioned base station apparatus for wireless communication is characterized in that the first bit string and the second bit string are respectively composed of the K1 bits and the K2 bits.
As an embodiment, the base station apparatus used for wireless communication described above is characterized in that the first frequency-domain resource includes a plurality of frequency-domain sub-resources, the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
As an embodiment, the above base station apparatus for wireless communication is characterized in that the first transmission module further transmits second information. Wherein the second information is used to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
As an embodiment, the base station apparatus used for wireless communication described above is characterized in that if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource may be used by the base station to transmit wireless signals.
As an embodiment, the base station apparatus used for wireless communication described above is characterized in that if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are the same, the second bit string is used to determine the first hypothesis.
As an embodiment, the above-mentioned base station apparatus for wireless communication is characterized in that, if the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by the base station for transmitting wireless signals, the first reference signal comprises R sub-signals occupying time domain resources which are continuous and have the same length within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is R-1 subcarrier, and R is a positive integer.
As an embodiment, the base station apparatus for wireless communication described above is characterized in that the first information includes a third bit string used for determining whether the intended receiver of the first reference signal can assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol, one antenna port group including a positive integer number of antenna ports.
As an embodiment, the above base station apparatus for wireless communication is characterized in that the third bit string is used to determine a first time window, a portion of a first sub-signal within a first multi-carrier symbol and outside the first time window is used to determine a first reception quality, the first sub-signal is one of the R sub-signals, and the first multi-carrier symbol is one of the K2 multi-carrier symbols allocated to the first reference signal.
As an example, compared with the conventional scheme, the method has the following advantages:
indicating the resource occupation of the reference signal in the time domain and the frequency domain by means of bitmap through two bit strings, so as to flexibly represent various resource configuration combinations of the reference signal in the time-frequency domain.
The number of repetitions of the reference signal in the time domain is implicitly indicated by two bit strings indicating the time-frequency resource occupation, so that signaling overhead for reference signal configuration is reduced, and multiple reference signal designs based on different technical schemes, such as a reference signal based on a componentCSI-RS RE pattern, a reference signal based on a comb (comb) pattern, and a reference signal based on IFDMA, can be flexibly supported and distinguished.
When the reference signal is based on IFDMA, multiple repetitions of the reference signal in the time domain are supported for transmit beam scanning or receive beam scanning, increasing the flexibility of the reference signal.
When multiple repetitions of IFDMA-based reference signals in the time domain are used for transmit beam scanning, the base station needs a certain time to complete the switch between transmit beams. The method and the device support informing the UE (User Equipment) of the occurrence time of the switching of the transmission beam, so that the UE can give up the reference signal received in the middle of the switching process, and the receiving error caused by the instability of the transmission beam in the switching process is avoided.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:
fig. 1 shows a flow chart of first information and first reference signals according to an embodiment of the application;
FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;
figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;
figure 4 shows a schematic diagram of an evolved node and a UE according to an embodiment of the present application;
FIG. 5 shows a flow diagram of wireless transmission according to one embodiment of the present application;
FIG. 6 shows a flow diagram of wireless transmission according to another embodiment of the present application;
fig. 7 shows a schematic diagram of a resource mapping of K1 subcarrier sets in a first frequency domain sub-resource according to an embodiment of the present application;
fig. 8 shows a schematic diagram of a resource mapping of K1 subcarrier sets in a first frequency domain sub-resource according to another embodiment of the present application;
fig. 9 shows a schematic diagram of resource mapping of K2 multicarrier symbols in a first time domain sub-resource according to an embodiment of the application;
fig. 10 shows a schematic diagram of resource mapping of K2 multicarrier symbols in a first time domain sub-resource according to another embodiment of the application;
FIG. 11 shows a schematic diagram of resource mapping of a first reference signal over a plurality of frequency domain sub-resources and a plurality of time domain sub-resources according to an embodiment of the present application;
fig. 12 shows a schematic diagram of a resource mapping of a first reference signal over a plurality of frequency domain sub-resources and a plurality of time domain sub-resources according to another embodiment of the present application;
fig. 13 shows a schematic diagram of a resource mapping of a first reference signal over a plurality of frequency domain sub-resources and a plurality of time domain sub-resources according to another embodiment of the present application;
FIG. 14 shows a schematic diagram of resource mapping of R sub-signals and a first time window in the time domain according to an embodiment of the present application;
FIG. 15 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;
fig. 16 shows a block diagram of a processing device for use in a base station according to an embodiment of the present application.
Example 1
Embodiment 1 illustrates a flowchart of first information and a first reference signal, as shown in fig. 1.
In embodiment 1, the ue in this application receives first information first and then receives a first reference signal. Wherein the first information comprises a first bit string and a second bit string, the first bit string and the second bit string comprising K1 bits and K2 bits, respectively, the K1 and the K2 being positive integers greater than 1, respectively; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by a sender of the first reference signal to transmit wireless signals.
As an embodiment, any one of the K1 subcarrier sets includes 1 subcarrier.
As one sub-embodiment, any one of the K1 subcarrier sets includes Q discontinuous subcarriers, where Q is a positive integer greater than 1.
As an embodiment, any one of the K1 subcarrier sets includes P consecutive subcarriers, where P is a positive integer greater than 1.
As one sub-embodiment, any two of the K1 subcarrier sets include equal numbers of subcarriers.
As a sub-embodiment, the K2 multicarrier symbols are consecutive in the time domain.
As a sub-embodiment, the K2 multicarrier symbols are discontinuous in the time domain.
As a sub-embodiment, the subcarrier set corresponding to the bit with the median value of 1 in the K1 bits is allocated to the first reference signal.
As a sub-embodiment, the multicarrier symbol corresponding to the bit with the median value of 1 in the K2 bits is allocated to the first reference signal.
As a sub-embodiment, the first frequency-domain sub-resource comprises S1 consecutive PRBs, and the S1 is a positive integer.
As an embodiment, the first frequency-domain sub-resource includes S2 consecutive subcarriers, and the S2 is a positive integer greater than 1.
As a sub-embodiment, the first time domain sub-resource comprises a positive integer number of consecutive multicarrier symbols.
As a sub-embodiment, the first time domain sub-resource comprises a positive integer number of non-contiguous multicarrier symbols.
As a sub-embodiment, the first time domain sub-resource consists of the K2 multicarrier symbols.
As a sub-embodiment, the first time domain sub-resource comprises a number of multicarrier symbols greater than the K2.
As a sub-embodiment, the K1 bits are arranged in sequence in the first bit string.
As a sub embodiment, the K2 bits are arranged in sequence in the second bit string.
As a sub-embodiment, the multicarrier symbol is an OFDM symbol.
As a sub-embodiment, the multi-carrier symbol is a DFT-S-OFDM symbol.
As a sub-embodiment, the multi-carrier symbol is an FBMC symbol.
As a sub-embodiment, the first frequency-domain resource comprises a positive integer number of consecutive PRBs.
As a sub-embodiment, the first frequency-domain resource comprises a positive integer number of discontinuous PRBs.
As a sub-embodiment, the first frequency domain resource comprises the entire system bandwidth.
As a sub-embodiment, the first frequency domain resource comprises a portion of a system bandwidth.
As a sub-embodiment, the first reference signal is wideband.
As a sub-embodiment, the system bandwidth is divided into a positive integer number of frequency domain regions, the first reference signal occurs over all frequency domain regions within the system bandwidth, and any one of the positive integer number of frequency domain regions includes a positive integer number of consecutive subcarriers.
As a sub-embodiment, the first reference signal comprises CSI-RS.
As a sub-embodiment, the first reference signal comprises a DMRS.
As a sub-embodiment, the first reference signal comprises a TRS.
As a sub-embodiment, the first reference signal comprises a PTRS.
As a sub-embodiment, the first reference signal is narrowband.
As a sub-embodiment, the system bandwidth is divided into a positive integer number of frequency domain regions, and the first reference signal only appears on a partial frequency domain region.
As a sub-embodiment, the first information is carried by higher layer signaling.
As a sub-embodiment, the first information is carried by RRC signaling.
As a sub-embodiment, the first information is carried by physical layer signaling.
As a sub-embodiment, the K1 is configurable.
As a sub-embodiment, K1 is equal to 2.
As a sub-embodiment, K1 is equal to 3.
As a sub-embodiment, K1 is equal to 4.
As a sub-embodiment, K1 is equal to 6.
As a sub-embodiment, K1 is equal to 12.
As a sub-embodiment, the K2 is configurable.
As a sub-embodiment, K2 is equal to 2.
As a sub-embodiment, K2 is equal to 4.
As a sub-embodiment, K2 is equal to 10.
As a sub-embodiment, K2 is equal to 12.
Example 2
Embodiment 2 illustrates a schematic diagram of a network architecture, as illustrated in fig. 2.
Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced) and future 5G systems. The LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200. The EPS 200 may include one or more UEs (User Equipment) 201, E-UTRAN (Evolved UMTS terrestrial radio access network) 202, EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220, and internet service 232. The UMTS is compatible with Universal Mobile Telecommunications System (Universal Mobile Telecommunications System). The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services. The E-UTRAN includes evolved node Bs (eNBs) 203 and other eNBs 204. The eNB203 provides user and control plane protocol terminations towards the UE 201. eNB203 may be connected to other enbs 204 via an X2 interface (e.g., backhaul). The eNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive point), or some other suitable terminology. eNB203 provides UE201 with an access point to EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. eNB203 connects to EPC210 through the S1 interface. The EPC210 includes an MME211, other MMEs 214, an S-GW (Service Gateway) 211, and a P-GW (Packet data network Gateway) 213. MME211 is a control node that handles signaling between UE201 and EPC 210. In general, the MME211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW211, and S-GW211 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS streaming service (PSs).
As a sub-embodiment, the UE201 corresponds to the UE in the present application.
As a sub-embodiment, the eNB203 corresponds to the base station in this application.
Example 3
Embodiment 3 illustrates a schematic diagram of an embodiment of radio protocol architecture for the user plane and the control plane, as shown in fig. 3.
Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the UE and the eNB in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the eNB through PHY 301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at an eNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW213 on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handover support for UEs between enbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and eNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the eNB and the UE.
As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.
As a sub-embodiment, the first information in the present application is generated in the RRC sublayer 306.
As a sub-embodiment, the second information in this application is generated in the RRC sublayer 306.
As a sub-embodiment, the first information in the present application is generated in the MAC sublayer 302.
As a sub-embodiment, the second information in this application is generated in the MAC sublayer 302.
As a sub-embodiment, the first information in the present application is generated in the PHY 301.
As a sub-embodiment, the second information in the present application is generated in the PHY 301.
As a sub-embodiment, the first reference signal in the present application is generated in the PHY 301.
Example 4
Embodiment 4 illustrates a schematic diagram of an evolved node and a UE, as shown in fig. 4.
Fig. 4 is a block diagram of an eNB410 in communication with a UE450 in an access network. In the DL (Downlink), upper layer packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In the DL, the controller/processor 475 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the UE450 based on various priority metrics. Controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to UE 450. The transmit processor 416 implements various signal processing functions for the L1 layer (i.e., the physical layer). The signal processing functions include decoding and interleaving to facilitate Forward Error Correction (FEC) at the UE450 and mapping to signal constellation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The coded and modulated symbols are then split into parallel streams. Each stream is then mapped to a multicarrier subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and/or frequency domain, and then combined together using an Inverse Fast Fourier Transform (IFFT) to produce a physical channel carrying a time-domain multicarrier symbol stream. The multi-carrier stream is spatially pre-decoded to produce a plurality of spatial streams. Each spatial stream is then provided via a transmitter 418 to a different antenna 420. Each transmitter 418 modulates an RF carrier with a respective spatial stream for transmission. At the UE450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto an RF carrier and provides the information to a receive processor 456. The receive processor 456 performs various signal processing functions at the L1 level. The receive processor 456 performs spatial processing on the information to recover any spatial streams destined for the UE 450. If multiple spatial streams are destined for UE450, they may be combined into a single multicarrier symbol stream by receive processor 456. A receive processor 456 then converts the multicarrier symbol stream from the time-domain to the frequency-domain using a Fast Fourier Transform (FFT). The frequency domain signal comprises a separate multicarrier symbol stream for each subcarrier of the multicarrier signal. The symbols on each subcarrier, as well as the reference signal, are recovered and demodulated by determining the most likely signal constellation point transmitted by the eNB410, and generating soft decisions. The soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted by the eNB410 on the physical channel. The data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the L2 layer. The controller/processor can be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the DL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing. The controller/processor 459 is also responsible for error detection using an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations. In the UL (Uplink), a data source 467 is used to provide the upper layer packet to the controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the functionality described in connection with the DL transmission of the eNB410, the controller/processor 459 implements the L2 layer for the user plane and the control plane by providing header compression, ciphering, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the eNB 410. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the eNB 410. An appropriate coding and modulation scheme is selected and spatial processing is facilitated by a transmit processor 468. The spatial streams generated by the transmit processor 468 are provided to different antennas 452 via separate transmitters 454. Each transmitter 454 modulates an RF carrier with a respective spatial stream for transmission. The UL transmissions are processed at the eNB410 in a manner similar to that described in connection with the receiver functionality at the UE 450. Each receiver 418 receives a signal through its respective antenna 420. Each receiver 418 recovers information modulated onto an RF carrier and provides the information to a receive processor 470. Receive processor 470 may implement the L1 layer. The controller/processor 475 implements the L2 layer. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the UL, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network. Controller/processor 475 is also responsible for error detection using the ACK and/or NACK protocol to support HARQ operations.
As a sub-embodiment, the UE450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor.
As a sub-embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: the method includes receiving first information, operating a first wireless signal on a first carrier, and performing second information on a target carrier.
As a sub-embodiment, the eNB410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor.
As a sub-embodiment, the eNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: the method includes transmitting first information, performing a first wireless signal on a first carrier, and operating second information on a target carrier.
As a sub-embodiment, the UE450 corresponds to the UE in this application.
As a sub-embodiment, the eNB410 corresponds to the base station in this application.
As a sub-embodiment, at least one of the receive processor 456 and the controller/processor 459 is configured to receive the first information in the present application.
As a sub-embodiment, at least one of the receive processor 456 and the controller/processor 459 is configured to receive the second information in the present application.
As a sub-embodiment, at least one of the receive processor 456 and the controller/processor 459 is configured to receive the first reference signal in the present application.
As a sub-embodiment, at least one of the transmit processor 416 and the controller/processor 475 is used to transmit the first information in this application.
As a sub-embodiment, at least one of the transmit processor 416 and the controller/processor 475 is used to transmit the second information in the present application.
As a sub-embodiment, at least one of the transmit processor 416 and the controller/processor 475 is configured to transmit the first reference signal in the present application.
Example 5
Embodiment 5 illustrates a flow chart of wireless transmission, as described in fig. 5. In fig. 5, base station N1 is the serving cell maintenance base station for user equipment U2. In fig. 5, the step in block F1 is optional.
For N1, second information is sent in step S101; transmitting the first information in step S11; the first reference signal is transmitted in step S12.
For U2, second information is received in step S201; receiving the first information in step S21; the first reference signal is received in step S22.
In embodiment 5, the first information includes a first bit string and a second bit string, the first bit string and the second bit string respectively include K1 bits and K2 bits, the K1 and the K2 are respectively positive integers greater than 1; the K1 bits are used by the U2 to determine whether K1 subcarrier sets in first frequency domain sub-resources are allocated to the first reference signal, the K2 bits are used by the U2 to determine whether K2 multicarrier symbols in first time domain sub-resources are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings being used by the U2 to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by the N1 for transmitting wireless signals. The first frequency-domain resource includes a plurality of frequency-domain sub-resources, the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and the first reference signal is allocated the same subcarrier in all of the plurality of frequency-domain sub-resources. The second information is used by the U2 to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
As one sub-embodiment, any two of the K1 subcarrier sets include equal numbers of subcarriers.
As a sub-embodiment, the K1 bits are arranged in sequence in the first bit string.
As a sub embodiment, the K2 bits are arranged in sequence in the second bit string.
As a sub-embodiment, the multicarrier symbol is an OFDM symbol.
As a sub-embodiment, the multi-carrier symbol is a DFT-S-OFDM symbol.
As a sub-embodiment, the multi-carrier symbol is an FBMC symbol.
As a sub-embodiment, the first reference signal comprises CSI-RS.
As a sub-embodiment, the first reference signal comprises a DMRS.
As a sub-embodiment, the first reference signal comprises a TRS.
As a sub-embodiment, the first reference signal comprises a PTRS.
As a sub-embodiment, the first information is transmitted on a downlink physical layer data channel (i.e. a downlink channel that can be used to carry physical layer data).
As a sub-embodiment of the above-mentioned embodiment, the downlink physical layer data channel is a PDSCH.
As a sub-embodiment of the above embodiment, the downlink physical layer data channel is sPDSCH.
As a sub-embodiment of the above embodiment, the downlink physical layer data channel is NR-PDSCH.
As a sub-embodiment of the above embodiment, the downlink physical layer data channel is an NB-PDSCH.
As a sub-embodiment, the first information is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).
As an auxiliary embodiment of the sub-embodiment, the downlink physical layer control channel is a PDCCH.
As an auxiliary embodiment of this sub-embodiment, the downlink physical layer control channel is sPDCCH.
As an auxiliary embodiment of the sub-embodiment, the downlink physical layer control channel is an NR-PDCCH.
As an auxiliary embodiment of the sub-embodiment, the downlink physical layer control channel is NB-PDCCH.
As a sub-embodiment, the first bit string and the second bit string are respectively composed of the K1 bits and the K2 bits.
As a sub-embodiment, the plurality of frequency domain sub-resources are contiguous in the frequency domain.
As a sub-embodiment, the plurality of frequency domain sub-resources are discontinuous in the frequency domain.
As a sub-embodiment, any two of the plurality of frequency domain sub-resources comprise the same number of subcarriers.
As a sub-embodiment, any one of the plurality of frequency-domain sub-resources comprises a positive integer number of consecutive PRBs.
As a sub-embodiment, any one of the plurality of frequency domain sub-resources comprises a positive integer number of consecutive subcarriers.
As a sub-embodiment, any two of the plurality of frequency domain sub-resources are orthogonal (non-overlapping) in the frequency domain.
As a sub-embodiment, the plurality of time domain sub-resources occur periodically.
As a sub-embodiment, the time intervals between any two adjacent time domain sub-resources of the plurality of time domain sub-resources are equal.
As a sub-embodiment, the plurality of time-domain sub-resources are non-contiguous in time domain.
As a sub-embodiment, any two time domain sub-resources of the plurality of time domain sub-resources comprise an equal number of multicarrier symbols.
As a sub-embodiment, any one of the plurality of time domain sub-resources comprises a positive integer number of consecutive multicarrier symbols.
As a sub-embodiment, any one of the plurality of time-domain sub-resources comprises a positive integer number of non-contiguous multicarrier symbols.
As a sub-embodiment, any two time domain sub-resources of the plurality of time domain sub-resources are orthogonal (non-overlapping) in the time domain.
As a sub-embodiment, the second information is used by the U2 to determine the first frequency domain resource.
As a sub-embodiment, the second information is carried by higher layer signaling.
As a sub-embodiment, the second information is carried by RRC signaling.
As a sub-embodiment, the second information is transmitted on a downlink physical layer data channel (i.e. a downlink channel that can be used to carry physical layer data).
As an additional embodiment of this sub-embodiment, the downlink physical layer data channel is a PDSCH.
As an additional embodiment of this sub-embodiment, the downlink physical layer data channel is sPDSCH.
As an additional embodiment of this sub-embodiment, the downlink physical layer data channel is NR-PDSCH.
As an additional embodiment of the sub-embodiment, the downlink physical layer data channel is an NB-PDSCH.
As a sub-embodiment, the second information is carried by physical layer signaling.
As a sub-embodiment, the second information is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used for carrying physical layer signaling).
As an auxiliary embodiment of the sub-embodiment, the downlink physical layer control channel is a PDCCH.
As an auxiliary embodiment of this sub-embodiment, the downlink physical layer control channel is sPDCCH.
As an auxiliary embodiment of the sub-embodiment, the downlink physical layer control channel is an NR-PDCCH.
As an auxiliary embodiment of the sub-embodiment, the downlink physical layer control channel is NB-PDCCH.
As a sub-embodiment, if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by the N1 for transmitting wireless signals.
As a sub-embodiment, if the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is the same, the second bit string is used by the U2 to determine the first hypothesis.
As a sub-embodiment, if the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by the N1 for transmitting wireless signals, the first reference signal comprising R sub-signals occupying time domain resources that are contiguous and of the same length within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated being R-1 subcarriers, the R being a positive integer.
As a sub-embodiment, the R is equal to the K1.
As a sub-embodiment, the frequency domain resources occupied by the R sub-signals are the same.
As a sub-embodiment, the time domain resources occupied by any of the R sub-signals within one multicarrier symbol are continuous.
As a sub-embodiment, the length of the time domain resource occupied by any of the R sub-signals within one multicarrier symbol is equal to the duration of one multicarrier symbol minus the duration of CP, and then divided by the R.
As a sub-embodiment, the first information includes a third bit string used by the U2 to determine whether the U2 can assume that the R sub-signals are transmitted by the same antenna port group within one multi-carrier symbol, one antenna port group including a positive integer number of antenna ports.
As a sub-embodiment, the third bit string comprises one bit.
As a sub-embodiment, an antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients from the plurality of antennas to the antenna port form a beamforming vector corresponding to the antenna port.
As a sub-embodiment, one antenna port group includes 1 antenna port.
As a sub-embodiment, one antenna port group includes a plurality of antenna ports.
As a sub-embodiment, the third bit string is used by the U2 for determining a first time window, a first sub-signal within a first multi-carrier symbol and outside the first time window is used by the U2 for determining a first reception quality, the first sub-signal being one of the R sub-signals, the first multi-carrier symbol being one of the K2 multi-carrier symbols allocated to the first reference signal.
As a sub-embodiment, the first reception quality is equal to an RSRP of a portion of the first sub-signal within the first multicarrier symbol and outside the first time window.
As a sub-embodiment, the first reception quality is equal to an RSRQ of a portion of the first sub-signal within the first multicarrier symbol and outside of the first time window.
As a sub-embodiment, the length of the time domain resource occupied by the first time window is equal to 0.
As a sub-embodiment, the length of the time domain resource occupied by the first time window is greater than 0.
As a sub-embodiment, the third bit string indicates whether the length of the time domain resource occupied by the first time window is equal to 0.
As a sub-embodiment, block F1 in fig. 5 exists.
As a sub-embodiment, block F1 in fig. 5 does not exist.
Example 6
Embodiment 6 illustrates a flow chart of wireless transmission, as shown in fig. 6. In fig. 6, base station N3 is the serving cell maintenance base station for user equipment U4. In fig. 6, the step in block F2 is optional.
For N3, the first information is sent in step S31; transmitting second information in step S301; the first reference signal is transmitted in step S32.
For U4, second information is received in step S401; receiving the first information in step S41; the first reference signal is received in step S42.
As a sub-embodiment, block F2 in fig. 6 exists.
As a sub-embodiment, block F2 in fig. 6 does not exist.
Example 7
Embodiment 7 illustrates a schematic diagram of resource mapping of K1 subcarrier sets in a first frequency domain sub-resource, as shown in fig. 7.
In embodiment 7, the first frequency-domain sub-resource consists of the K1 sets of sub-carriers, any one of the K1 sets of sub-carriers comprising 1 sub-carrier. In fig. 7, the indices of the K1 subcarrier sets are # {0, 1, …, K1-1}, respectively.
As a sub-embodiment, the first frequency-domain sub-resource comprises S1 consecutive PRBs, and the S1 is a positive integer.
As a sub-embodiment of the above embodiment, said S1 is equal to 1.
As a sub-embodiment of the above embodiment, the S1 is greater than 1.
As a sub-embodiment of the above embodiment, the S1 is configurable.
As an embodiment, the first frequency-domain sub-resource includes S2 consecutive subcarriers, and the S2 is a positive integer greater than 1.
As an additional embodiment of this sub-embodiment, said S2 is equal to 12.
As an additional embodiment of this sub-embodiment, said S2 is a positive integer multiple of 12.
As an additional embodiment of this sub-embodiment, the S2 is configurable.
As an additional example of this sub-embodiment, the K1 is equal to the S2.
Example 8
Embodiment 8 illustrates a schematic diagram of resource mapping of K1 subcarrier sets in a first frequency domain sub-resource, as shown in fig. 8.
In embodiment 8, the first frequency-domain sub-resources consist of the K1 sets of sub-carriers, any one of the K1 sets of sub-carriers comprising Q non-contiguous sub-carriers, Q being a positive integer greater than 1. In fig. 8, the indices of the K1 subcarrier sets are # {0, 1, …, K1-1}, respectively.
As a sub-embodiment, the Q discontinuous sub-carriers are equally spaced in the frequency domain.
As a sub-embodiment, the frequency intervals between any two adjacent sub-carriers in the Q discontinuous sub-carriers are equal.
As a sub-embodiment, the frequency interval between any two adjacent sub-carriers in the Q discontinuous sub-carriers is equal to K1 minus 1.
As a sub-embodiment, Q is 2.
As a sub-embodiment, Q is 3.
As a sub-embodiment, the Q is configurable.
As one sub-embodiment, the first frequency-domain sub-resource comprises S2 consecutive subcarriers, the S2 is a positive integer greater than 1, and the Q is equal to the S2 divided by the K1.
As one sub-embodiment, any two of the K1 subcarrier sets include equal numbers of subcarriers.
As a sub-embodiment, the K1 is configurable.
As a sub-embodiment, K1 is equal to 2.
As a sub-embodiment, K1 is equal to 3.
As a sub-embodiment, K1 is equal to 4.
As a sub-embodiment, K1 is equal to 6.
As a sub-embodiment, K1 is equal to 12.
Example 9
Embodiment 9 illustrates a schematic diagram of resource mapping of K2 multicarrier symbols in a first time domain sub-resource, as shown in fig. 9.
In embodiment 9, the first time-domain sub-resource consists of the K2 multicarrier symbols, the K2 multicarrier symbols being consecutive in time domain. In fig. 9, the indices of the K2 multicarrier symbols are # {0, 1, …, K2-1}, respectively.
As a sub-embodiment, the multicarrier symbol is an OFDM symbol.
As a sub-embodiment, the multi-carrier symbol is a DFT-S-OFDM symbol.
As a sub-embodiment, the multi-carrier symbol is an FBMC symbol.
As a sub-embodiment, the K2 is configurable.
As a sub-embodiment, K2 is equal to 2.
As a sub-embodiment, K2 is equal to 4.
As a sub-embodiment, K2 is equal to 10.
As a sub-embodiment, K2 is equal to 12.
Example 10
Embodiment 10 illustrates a schematic diagram of resource mapping of K2 multicarrier symbols in a first time domain sub-resource, as shown in fig. 10.
In embodiment 10, the first time domain sub-resource consists of the K2 multicarrier symbols, the K2 multicarrier symbols being consecutive in time domain. In fig. 9, the indexes of the K2 multicarrier symbols are # {0, 1, …, K2-1}, respectively, and "x" in fig. 9 is a positive integer smaller than the K2.
Example 11
Embodiment 11 illustrates a schematic diagram of resource mapping of a first reference signal on a plurality of frequency domain sub-resources and a plurality of time domain sub-resources, as shown in fig. 11.
In embodiment 11, the first reference signal is transmitted on the plurality of frequency domain sub-resources and the plurality of time domain sub-resources. The first reference signal is allocated the same subcarriers in all of the plurality of frequency domain sub-resources and the first reference signal is allocated the same multicarrier symbols in all of the plurality of time domain sub-resources. Any one of the plurality of frequency domain sub-resources consists of S2 consecutive subcarriers, and any one of the plurality of time domain sub-resources consists of K2 consecutive multicarrier symbols. The first reference signal is allocated one subcarrier in any one of the plurality of frequency-domain sub-resources, and the first reference signal is allocated one multicarrier symbol in any one of the plurality of time-domain sub-resources.
In fig. 11, the second frequency-domain sub-resource and the third frequency-domain sub-resource are any two frequency-domain sub-resources of the plurality of frequency-domain sub-resources, respectively, and the second time-domain sub-resource and the third time-domain sub-resource are any two time-domain sub-resources of the plurality of time-domain sub-resources, respectively. The second frequency-domain sub-resource and the third frequency-domain sub-resource are respectively composed of S2 second subcarriers and S2 third subcarriers, and the second time-domain sub-resource and the third time-domain sub-resource are respectively composed of K2 second multicarrier symbols and K2 third multicarrier symbols. The indexes of the S2 second subcarriers and the S2 third subcarriers are # {0, 1, …, S2-1}, respectively, and the indexes of the K2 second multicarrier symbols and the K2 third multicarrier symbols are # {0, 1, …, K2-1}, respectively.
As a sub-embodiment, the index of the subcarrier allocated to the first reference signal in the second frequency domain sub-resource is equal to the index of the subcarrier allocated to the first reference signal in the third frequency domain sub-resource.
As a sub-embodiment, the index of the multicarrier symbol allocated by the first reference signal in the second time-domain sub-resource is equal to the index of the multicarrier symbol allocated by the first reference signal in the third time-domain sub-resource.
As a sub-embodiment, the plurality of frequency domain sub-resources are contiguous in the frequency domain.
As a sub-embodiment, the plurality of frequency domain sub-resources are discontinuous in the frequency domain.
As a sub-embodiment, any two of the plurality of frequency domain sub-resources are orthogonal (non-overlapping) in the frequency domain.
As a sub-embodiment, the plurality of time domain sub-resources occur periodically.
As a sub-embodiment, the time intervals between any two adjacent time domain sub-resources of the plurality of time domain sub-resources are equal.
As a sub-embodiment, the plurality of time-domain sub-resources are non-contiguous in time domain.
As a sub-embodiment, any two time domain sub-resources of the plurality of time domain sub-resources are orthogonal (non-overlapping) in the time domain.
As a sub-embodiment, the K2 multicarrier symbols in the present application have only one multicarrier symbol allocated to the first reference signal.
As a sub-embodiment, the frequency domain interval between any two adjacent sub-carriers to which the first reference signal is allocated is the same, and only 1 multi-carrier symbol of the K2 multi-carrier symbols is allocated to the first reference signal, where the first assumption in this application is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource in this application can be used by a sender of the first reference signal to transmit wireless signals.
As a sub-embodiment, any one of the K1 subcarrier sets in this application includes 1 subcarrier.
As a sub-embodiment, only one of the K1 bits in the present application has a value of 1, and the other bits have a value of 0.
As a sub-embodiment, only one of the K2 bits in the present application has a value of 1, and the other bits have a value of 0.
Example 12
Embodiment 12 illustrates a schematic diagram of resource mapping of a first reference signal on a plurality of frequency domain sub-resources and a plurality of time domain sub-resources, as shown in fig. 12.
In embodiment 12, the first reference signal is transmitted on the plurality of frequency domain sub-resources and the plurality of time domain sub-resources. The first reference signal is allocated the same subcarriers in all of the plurality of frequency domain sub-resources and the first reference signal is allocated the same multicarrier symbols in all of the plurality of time domain sub-resources. Any one of the plurality of frequency domain sub-resources consists of S2 consecutive subcarriers, and any one of the plurality of time domain sub-resources consists of K2 consecutive multicarrier symbols. The first reference signal is allocated 2 consecutive subcarriers in any one of the plurality of frequency domain sub-resources, and the first reference signal is allocated 2 consecutive multicarrier symbols in any one of the plurality of time domain sub-resources.
In fig. 12, the second frequency-domain sub-resource and the third frequency-domain sub-resource are any two frequency-domain sub-resources of the plurality of frequency-domain sub-resources, respectively, and the second time-domain sub-resource and the third time-domain sub-resource are any two time-domain sub-resources of the plurality of time-domain sub-resources, respectively. The second frequency-domain sub-resource and the third frequency-domain sub-resource are respectively composed of S2 second subcarriers and S2 third subcarriers, and the second time-domain sub-resource and the third time-domain sub-resource are respectively composed of K2 second multicarrier symbols and K2 third multicarrier symbols. The indexes of the S2 second subcarriers and the S2 third subcarriers are # {0, 1, …, S2-1}, respectively, and the indexes of the K2 second multicarrier symbols and the K2 third multicarrier symbols are # {0, 1, …, K2-1}, respectively.
As an embodiment, the first reference signal is allocated with 2 second subcarriers among the S2 second subcarriers, and the first reference signal is allocated with 2 third subcarriers among the S2 third subcarriers. The 2 second subcarriers and the 2 third subcarriers correspond to each other one by one, and an index of any one of the 2 second subcarriers in the second frequency domain subcarrier is equal to an index of the corresponding third subcarrier in the third frequency domain subcarrier.
As a sub-embodiment, the first reference signal is allocated 2 second multicarrier symbols among the K2 second multicarrier symbols, and the first reference signal is allocated 2 third multicarrier symbols among the K2 third multicarrier symbols. The 2 second multicarrier symbols and the 2 third multicarrier symbols are in one-to-one correspondence, and an index of any one of the 2 second multicarrier symbols in the second time domain sub-resource is equal to an index of a corresponding third multicarrier symbol in the third time domain sub-resource.
As a sub-embodiment, the K2 multicarrier symbols in the present application have two consecutive multicarrier symbols allocated to the first reference signal.
As an embodiment, the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are different, and the first assumption in this application is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource in this application can be used by a sender of the first reference signal to transmit wireless signals.
As a sub-embodiment, any one of the K1 subcarrier sets in this application includes P consecutive subcarriers, where P is equal to 2.
As a sub-embodiment, only one of the K1 bits in the present application has a value of 1, and the other bits have a value of 0.
As a sub-embodiment, 2 consecutive bits of the K2 bits in the present application have a value of 1, and the other bits have a value of 0.
As a sub-embodiment, any one of the K1 subcarrier sets in this application includes 1 subcarrier.
As a sub-embodiment, 2 consecutive bits of the K1 bits in the present application have a value of 1, and the other bits have a value of 0.
Example 13
Embodiment 13 illustrates a schematic diagram of resource mapping of a first reference signal on a plurality of frequency domain sub-resources and a plurality of time domain sub-resources, as shown in fig. 13.
In embodiment 13, the first reference signal is transmitted on the plurality of frequency domain sub-resources and the plurality of time domain sub-resources. The first reference signal is allocated the same subcarriers in all of the plurality of frequency domain sub-resources and the first reference signal is allocated the same multicarrier symbols in all of the plurality of time domain sub-resources. Any one of the plurality of frequency domain sub-resources consists of 12 consecutive subcarriers, and any one of the plurality of time domain sub-resources consists of K2 consecutive multicarrier symbols. The first reference signal is allocated 3 non-contiguous and equally spaced subcarriers in any one of the plurality of frequency domain sub-resources, and the first reference signal is allocated 2 contiguous multicarrier symbols in any one of the plurality of time domain sub-resources.
In fig. 13, the second frequency-domain sub-resource and the third frequency-domain sub-resource are any two frequency-domain sub-resources of the plurality of frequency-domain sub-resources, respectively, and the second time-domain sub-resource and the third time-domain sub-resource are any two time-domain sub-resources of the plurality of time-domain sub-resources, respectively. The second frequency domain sub-resource and the third frequency domain sub-resource are respectively composed of 12 second subcarriers and 12 third subcarriers, and the second time domain sub-resource and the third time domain sub-resource are respectively composed of K2 second multicarrier symbols and K2 third multicarrier symbols. The indices of the 12 second subcarriers and the 12 third subcarriers are # {0, 1, …, 11}, respectively, and the indices of the K2 second multicarrier symbols and the K2 third multicarrier symbols are # {0, 1, …, K2-1}, respectively.
As a sub-embodiment, the K2 multicarrier symbols in the present application have two consecutive multicarrier symbols allocated to the first reference signal.
As a sub-embodiment, the frequency domain interval between any two adjacent sub-carriers to which the first reference signal is allocated is the same, and 2 consecutive multi-carrier symbols of the K2 multi-carrier symbols are allocated to the first reference signal, where the first assumption in this application is that: subcarriers in the multicarrier symbols allocated to the first reference signal and in the first frequency domain resources in this application that are not allocated to the first reference signal cannot be used by the sender of the first reference signal for transmitting wireless signals. That is, the time-frequency resources represented by the small-dot filled squares in fig. 13 cannot be used by the sender of the first reference signal to transmit wireless signals.
As a sub-embodiment, any one of the K1 subcarrier sets in this application includes Q discontinuous subcarriers, and Q is equal to 3.
As an auxiliary embodiment of the sub-embodiment, the Q discontinuous sub-carriers are distributed at equal intervals in the frequency domain.
As a sub-embodiment, only 1 bit of the K1 bits in the present application has a value of 1, and the other bits have a value of 0.
As a sub-embodiment, 2 consecutive bits of the K2 bits in the present application have a value of 1, and the other bits have a value of 0.
As a sub-embodiment, said K1 in the present application is equal to 4.
Example 14
Embodiment 14 illustrates a schematic diagram of resource mapping of R sub-signals and a first time window in the time domain, as shown in fig. 14.
In embodiment 14, the first reference signal comprises R sub-signals occupying consecutive and same-length time domain resources within one multicarrier symbol, the R being a positive integer. The part of the first subsignal within a first multicarrier symbol and outside said first time window is used for determining a first reception quality, said first subsignal being one of said R subsignals, said first multicarrier symbol being one multicarrier symbol allocated to said first reference signal. The first time window comprises R sub-time windows in the first multi-carrier symbol, the R sub-time windows are respectively in one-to-one correspondence with the R sub-signals, and any sub-time window in the R sub-time windows is located in a time domain resource occupied by the corresponding sub-signal in the first multi-carrier symbol.
In FIG. 14, the indices of the R sub-signals and the R sub-time windows are # {0, 1, …, R-1}, respectively.
As a sub-embodiment, the third bit string in the present application is used to determine the first time window.
As a sub-embodiment, the length of the time domain resource occupied by the first time window is equal to 0.
As a sub-embodiment, the length of the time domain resource occupied by the first time window is greater than 0.
As a sub-embodiment, the third bit string indicates whether the length of the time domain resource occupied by the first time window is equal to 0.
As a sub-embodiment, in embodiment 14, the first assumption in the present application is: subcarriers in the multicarrier symbols allocated to the first reference signal and in the first frequency domain resources in this application that are not allocated to the first reference signal cannot be used by the sender of the first reference signal for transmitting wireless signals.
As an embodiment, the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is R-1 subcarriers.
As a sub-embodiment, the R is equal to the K1.
As a sub-embodiment, the time domain resources occupied by the R sub-signals are mutually orthogonal (non-overlapping).
As a sub-embodiment, the frequency domain resources occupied by the R sub-signals are the same.
As a sub-embodiment, the time domain resources occupied by any of the R sub-signals within one multicarrier symbol are continuous.
As a sub-embodiment, the length of the time domain resource occupied by any sub-signal of the R sub-signals in one multi-carrier symbol is equal to the duration of one multi-carrier symbol minus the duration of CP (Cyclic Prefix), and then divided by the R.
As a sub-embodiment, the R sub-time windows occupy time domain resources that are equal in length and are discontinuous.
As a sub-embodiment, the time intervals between any two adjacent sub-time windows in the R sub-time windows are equal.
As a sub-embodiment, the time domain resources occupied by any one of the R sub-time windows are continuous.
As a sub-embodiment, the position of each of the R sub-time windows in the first multicarrier symbol is predetermined.
As a sub-embodiment, the third bit string indicates a position of each of the R sub-time windows in the first multicarrier symbol.
As a sub-embodiment, the length of each of the R sub-time windows is one of T candidate lengths, the third bit string indicates the length of each of the R sub-time windows among the T candidate lengths, and T is a positive integer greater than 1.
As a sub-embodiment of the above embodiment, said T is equal to 2.
As a sub-embodiment of the above embodiment, the T candidate lengths include 0.
As a sub-embodiment, measurements for a portion of the first sub-signal within the first multicarrier symbol and outside the first time window are used to determine a first reception quality.
As a sub-embodiment, the first reception quality is equal to an RSRP of a portion of the first sub-signal within the first multicarrier symbol and outside the first time window.
As a sub-embodiment, the first reception quality is equal to an RSRQ of a portion of the first sub-signal within the first multicarrier symbol and outside of the first time window.
Example 15
Embodiment 15 illustrates a block diagram of a processing apparatus used in a user equipment, as shown in fig. 15. In fig. 15, a processing means 1500 in a user equipment is mainly composed of a first receiving module 1501 and a second receiving module 1502.
In embodiment 15, the first receiving module 1501 receives first information; the second receiving module 1502 receives the first reference signal.
In embodiment 15, the first information includes a first bit string and a second bit string, the first bit string and the second bit string respectively include K1 bits and K2 bits, the K1 and the K2 are respectively positive integers greater than 1; the K1 bits are used by the second receiving module 1502 to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are used by the second receiving module 1502 to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first bit string and the second bit string is used by the second receiving module 1502 to determine a first hypothesis, which is: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by a sender of the first reference signal to transmit wireless signals.
As a sub-embodiment, the first bit string and the second bit string are respectively composed of the K1 bits and the K2 bits.
As an embodiment, the first frequency-domain resource includes a plurality of frequency-domain sub-resources, the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
As a sub-embodiment, the first receiving module 1501 also receives the second information. Wherein the second information is used by the second receiving module 1502 to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
As a sub-embodiment, if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
As a sub-embodiment, if the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is the same, the second bit string is used by the second receiving module 1502 to determine the first hypothesis.
As a sub-embodiment, if the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by a sender of the first reference signal for transmitting a wireless signal, the first reference signal comprising R sub-signals occupying consecutive and same-length time domain resources within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated being R-1 subcarriers, the R being a positive integer.
As a sub-embodiment, the first information includes a third bit string, which is used by the second receiving module 1502 to determine whether the user equipment can assume that the R sub-signals are transmitted by the same antenna port group within one multi-carrier symbol, where one antenna port group includes a positive integer number of antenna ports.
As a sub-embodiment, said third bit string is used by said second receiving module 1502 for determining a first time window, a portion of a first sub-signal within a first multi-carrier symbol and outside said first time window is used by said user equipment for determining a first reception quality, said first sub-signal being one of said R sub-signals, said first multi-carrier symbol being one of said K2 multi-carrier symbols allocated to said first reference signal.
As a sub-embodiment, the first receiving module 1501 includes at least one of the receiving processor 456 and the controller/processor 459 in embodiment 4.
As a sub-embodiment, the second receiving module 1502 includes at least one of the receiving processor 456 and the controller/processor 459 in embodiment 4.
Example 16
Embodiment 16 is a block diagram illustrating a processing apparatus used in a base station, as shown in fig. 16. In fig. 16, a processing apparatus 1600 in a base station is mainly composed of a first transmitting module 1601 and a second transmitting module 1602.
In embodiment 16, a first transmitting module 1601 transmits first information; the second transmitting module 1602 transmits the first reference signal.
In embodiment 16, the first information includes a first bit string and a second bit string, the first bit string and the second bit string respectively include K1 bits and K2 bits, the K1 and the K2 are respectively positive integers greater than 1; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by the base station for transmitting wireless signals.
As a sub-embodiment, the first bit string and the second bit string are respectively composed of the K1 bits and the K2 bits.
As an embodiment, the first frequency-domain resource includes a plurality of frequency-domain sub-resources, the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
As a sub-embodiment, the first sending module 1601 further sends second information. Wherein the second information is used to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
As a sub-embodiment, if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource may be used by the base station to transmit wireless signals.
As a sub-embodiment, if the frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is the same, the second bit string is used to determine the first hypothesis.
As a sub-embodiment, if the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by the base station for transmitting wireless signals, the first reference signal comprises R sub-signals occupying time domain resources which are continuous and have the same length within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is R-1 subcarrier, and R is a positive integer.
As a sub-embodiment, the first information comprises a third bit string used to determine whether the intended recipient of the first reference signal can assume that the R sub-signals are transmitted by the same antenna port group within one multi-carrier symbol, one antenna port group comprising a positive integer number of antenna ports.
As a sub-embodiment, the third bit string is used for determining a first time window, a portion of the first sub-signal within a first multi-carrier symbol and outside the first time window is used for determining a first reception quality, the first sub-signal is one of the R sub-signals, and the first multi-carrier symbol is one of the K2 multi-carrier symbols allocated to the first reference signal.
As a sub-embodiment, the first transmitting module 1601 includes at least one of the transmitting processor 416 and the controller/processor 475 of embodiment 4.
As a sub-embodiment, the second sending module 1602 includes at least one of the transmit processor 416 and the controller/processor 475 of embodiment 4.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE and the terminal in this application include but are not limited to unmanned aerial vehicle, communication module on the unmanned aerial vehicle, remote control plane, aircraft, small aircraft, cell-phone, tablet computer, notebook, vehicle-mounted communication equipment, wireless sensor, network card, internet of things terminal, RFID terminal, NB-IOT terminal, MTC (Machine type communication ) terminal, eMTC (enhanced MTC) terminal, data card, network card, vehicle-mounted communication equipment, low-cost cell-phone, equipment such as low-cost tablet computer. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (36)

1. A method in a user equipment for wireless communication, comprising:
-receiving first information;
-receiving a first reference signal;
wherein the first information comprises a first bit string and a second bit string, the first bit string and the second bit string comprising K1 bits and K2 bits, respectively, the K1 and the K2 being positive integers greater than 1, respectively; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by a sender of the first reference signal to transmit wireless signals.
2. The method of claim 1, wherein the first bit string and the second bit string consist of the K1 bits and the K2 bits, respectively.
3. The method of claim 1 or 2, wherein the first frequency-domain resource comprises a plurality of frequency-domain sub-resources, wherein the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and wherein the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
4. The method according to claim 1 or 2, further comprising the steps of:
-receiving second information;
wherein the second information is used to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
5. The method according to claim 1 or 2, wherein if the frequency domain spacing between any two adjacent subcarriers to which the first reference signal is allocated is different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
6. The method according to claim 1 or 2, wherein the second bit string is used for determining the first hypothesis if the frequency-domain spacing between any two adjacent subcarriers to which the first reference signal is allocated is the same.
7. A method according to claim 1 or 2, characterized in that if the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by a sender of the first reference signal for transmitting a wireless signal, the first reference signal comprising R sub-signals occupying consecutive and same-length time domain resources within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated being R-1 subcarriers, the R being a positive integer.
8. The method of claim 7, wherein the first information comprises a third bit string, and wherein the third bit string is used for determining whether the user equipment can assume that the R sub-signals are transmitted by the same antenna port group within one multi-carrier symbol, and wherein one antenna port group comprises a positive integer number of antenna ports.
9. The method according to claim 8, characterized in that the third bit string is used for determining a first time window, that a first subsignal is within a first multicarrier symbol and that a part outside the first time window is used for determining a first reception quality, that the first subsignal is one of the R subsignals, and that the first multicarrier symbol is one of the K2 multicarrier symbols allocated to the first reference signal.
10. A method in a base station used for wireless communication, comprising:
-transmitting the first information;
-transmitting a first reference signal;
wherein the first information comprises a first bit string and a second bit string, the first bit string and the second bit string comprising K1 bits and K2 bits, respectively, the K1 and the K2 being positive integers greater than 1, respectively; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by the base station for transmitting wireless signals.
11. The method of claim 10, wherein the first string of bits and the second string of bits consist of the K1 bits and the K2 bits, respectively.
12. The method of claim 10 or 11, wherein the first frequency-domain resource comprises a plurality of frequency-domain sub-resources, wherein the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and wherein the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
13. The method according to claim 10 or 11, further comprising the steps of:
-transmitting the second information;
wherein the second information is used to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
14. The method according to claim 10 or 11, wherein if the frequency domain spacing between any two adjacent subcarriers to which the first reference signal is allocated is different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource may be used by the base station to transmit wireless signals.
15. The method according to claim 10 or 11, wherein the second bit string is used for determining the first hypothesis if the frequency-domain spacing between any two adjacent subcarriers to which the first reference signal is allocated is the same.
16. The method according to claim 10 or 11, characterized in that if the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by the base station for transmitting wireless signals, the first reference signal comprises R sub-signals occupying time domain resources which are continuous and have the same length within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is R-1 subcarrier, and R is a positive integer.
17. The method of claim 16, wherein the first information comprises a third bit string used to determine whether the intended recipient of the first reference signal can assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol, one antenna port group comprising a positive integer number of antenna ports.
18. The method according to claim 17, characterized in that said third bit string is used for determining a first time window, that a first subsignal is within a first multicarrier symbol and that a part outside said first time window is used for determining a first reception quality, that said first subsignal is one of said R subsignals, and that said first multicarrier symbol is one of said K2 multicarrier symbols which is assigned to said first reference signal.
19. User equipment configured for wireless communication, comprising:
-a first receiving module receiving first information;
-a second receiving module receiving a first reference signal;
wherein the first information comprises a first bit string and a second bit string, the first bit string and the second bit string comprising K1 bits and K2 bits, respectively, the K1 and the K2 being positive integers greater than 1, respectively; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by a sender of the first reference signal to transmit wireless signals.
20. The user equipment of claim 19, wherein the first string of bits and the second string of bits consist of the K1 bits and the K2 bits, respectively.
21. The user equipment according to claim 19 or 20, wherein the first frequency-domain resource comprises a plurality of frequency-domain sub-resources, the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
22. The UE of claim 19 or 20, wherein the first receiving module further receives second information; wherein the second information is used to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
23. The UE of claim 19 or 20, wherein if the frequency domain spacing between any two adjacent subcarriers to which the first reference signal is allocated is different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency-domain resource may be used by a sender of the first reference signal to transmit wireless signals.
24. The UE of claim 19 or 20, wherein the second bit string is used to determine the first hypothesis if the frequency-domain spacing between any two adjacent subcarriers to which the first reference signal is allocated is the same.
25. The user equipment according to claim 19 or 20, wherein if the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by a sender of the first reference signal for transmitting a wireless signal, the first reference signal comprising R sub-signals occupying consecutive and same-length time domain resources within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated being R-1 subcarriers, the R being a positive integer.
26. The UE of claim 25, wherein the first information comprises a third bit string used to determine whether the UE can assume that the R sub-signals are transmitted by the same antenna port group within one multi-carrier symbol, and wherein an antenna port group comprises a positive integer number of antenna ports.
27. The user equipment as recited in claim 26 wherein the third bit string is used to determine a first time window, wherein a portion of a first sub-signal within a first multi-carrier symbol and outside of the first time window is used to determine a first reception quality, wherein the first sub-signal is one of the R sub-signals, and wherein the first multi-carrier symbol is one of the K2 multi-carrier symbols that is assigned to the first reference signal.
28. A base station apparatus used for wireless communication, comprising:
-a first sending module to send a first information;
-a second transmitting module for transmitting the first reference signal;
wherein the first information comprises a first bit string and a second bit string, the first bit string and the second bit string comprising K1 bits and K2 bits, respectively, the K1 and the K2 being positive integers greater than 1, respectively; the K1 bits are respectively used to determine whether K1 subcarrier sets in first frequency domain subcarriers are allocated to the first reference signal, the K2 bits are respectively used to determine whether K2 multicarrier symbols in first time domain subcarriers are allocated to the first reference signal, each of the K1 subcarrier sets consisting of a positive integer number of subcarriers; the first reference signal is transmitted in a first frequency domain resource, at least the former of the first and second bit strings is used to determine a first hypothesis, the first hypothesis being: whether subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource can be used by the base station for transmitting wireless signals.
29. The base station device of claim 28, wherein the first bit string and the second bit string consist of the K1 bits and the K2 bits, respectively.
30. The base station apparatus of claim 28 or 29, wherein the first frequency-domain resource comprises a plurality of frequency-domain sub-resources, wherein the first frequency-domain sub-resource is one of the plurality of frequency-domain sub-resources, and wherein the first reference signal is allocated to the same subcarrier in all of the plurality of frequency-domain sub-resources.
31. The base station device of claim 28 or 29, wherein the first sending module further sends second information; wherein the second information is used to determine a plurality of time domain sub-resources, the first time domain sub-resource being one of the plurality of time domain sub-resources, the first reference signal being allocated the same multicarrier symbol in all of the plurality of time domain sub-resources.
32. The base station apparatus of claim 28 or 29, wherein if the frequency domain intervals between any two adjacent subcarriers to which the first reference signal is allocated are different, the first assumption is that: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource may be used by the base station to transmit wireless signals.
33. The base station apparatus of claim 28 or 29, wherein the second bit string is used to determine the first hypothesis if the frequency domain spacing between any two adjacent subcarriers to which the first reference signal is allocated is the same.
34. The base station apparatus according to claim 28 or 29, wherein if the first assumption is: subcarriers not allocated to the first reference signal in the multicarrier symbol allocated to the first reference signal and in the first frequency domain resource cannot be used by the base station for transmitting wireless signals, the first reference signal comprises R sub-signals occupying time domain resources which are continuous and have the same length within one multicarrier symbol, a frequency domain interval between any two adjacent subcarriers to which the first reference signal is allocated is R-1 subcarrier, and R is a positive integer.
35. The base station apparatus of claim 34, wherein the first information comprises a third bit string used to determine whether the intended recipient of the first reference signal can assume that the R sub-signals are transmitted by the same antenna port group within one multicarrier symbol, one antenna port group comprising a positive integer number of antenna ports.
36. The base station apparatus of claim 35, wherein the third bit string is used to determine a first time window, wherein a portion of a first sub-signal within a first multi-carrier symbol and outside the first time window is used to determine a first reception quality, wherein the first sub-signal is one of the R sub-signals, and wherein the first multi-carrier symbol is one of the K2 multi-carrier symbols allocated to the first reference signal.
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CN114866206A (en) * 2019-01-26 2022-08-05 上海朗帛通信技术有限公司 Method and device used in user equipment and base station for wireless communication
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