CN108633029B - Beam indication method and device - Google Patents

Beam indication method and device Download PDF

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Publication number
CN108633029B
CN108633029B CN201710183251.1A CN201710183251A CN108633029B CN 108633029 B CN108633029 B CN 108633029B CN 201710183251 A CN201710183251 A CN 201710183251A CN 108633029 B CN108633029 B CN 108633029B
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reference signal
signaling
communication node
time domain
type
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CN108633029A (en
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高波
张淑娟
李儒岳
鲁照华
袁弋非
王欣晖
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2018/079087 priority patent/WO2018171494A1/en
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    • 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
    • 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
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams

Abstract

The invention provides a beam indication method and device. Wherein the method comprises the following steps: generating a first type of signaling, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; transmitting the first type signaling through a control channel; data is transmitted over the data channel associated with the first type of signaling. The invention solves the problem of resource waste caused by beam indication space-time white window in the related technology, and improves the flexibility of beam indication transmission.

Description

Beam indication method and device
Technical Field
The present invention relates to the field of communications, and in particular, to a beam indication method and apparatus.
Background
The ultra wide bandwidth high frequency band (i.e. millimeter wave communication) becomes an important direction for the development of future mobile communication, and attracts the eyes of the global academia and industry. In particular, when increasingly congested spectrum resources and physical networks are accessed in large amounts, the advantages of millimeter waves become more and more attractive, and corresponding standardization work is being started in many standards organizations, such as IEEE, 3 GPP. For example, in the 3GPP standard group, high-band communication will become an important innovation point of (5G New Radio Access Technology, simply referred to as New RAT) by virtue of its significant advantage of large bandwidth.
However, high-band communications also face challenges of link attenuation, including, in particular, large propagation path losses, greater absorption of air (especially oxygen), heavy rain fade, and the like. In view of these challenges, the high-band communication system can utilize the characteristics of short high-band wavelength and easy antenna integration, etc., and obtain high antenna gain and combat signal transmission loss through the multi-antenna array and the beamforming scheme, so as to ensure the link margin and improve the communication robustness.
During the training of antenna weights (also called precoding, beam), the high-band initiator transmits training pilots, and the receiver receives the channel and performs channel estimation. Then, the high-frequency band receiving end needs to feed back channel state information to the training transmitting end, so that the receiving and transmitting end can find a plurality of groups of receiving and transmitting end antenna weight pairs needed by multipath data transmission from the selectable receiving and transmitting end antenna weight pairs, and the overall spectrum efficiency is improved.
After transmitting the beam indication signaling, the user needs to face a certain decoding delay, beam switching delay and automatic gain control (Auto Gain Control, abbreviated AGC) adjustment delay. Thus, in existing millimeter wave communication systems, the beam is indicated by the medium access control (Media AccessControl, abbreviated MAC) layer and is validated after n+x time units. Similarly, at the physical layer indication for the beam, it is also required to take effect after n+y time units. A blank window (e.g., blank orthogonal frequency division multiplexing (Orthogonal Frequency DivisionMultiplexing, abbreviated OFDM) symbols, gap, or long preamble sequences) is required from n+1 to n+x or n+y time units, or the original transmission mode is maintained for transmission. This mode would waste some resources while performance would be lost and burden the system design and scheduling if the previous transmission mode is still used.
Aiming at the problem of resource waste caused by beam indication space-time white window in the related art, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a beam indication method and a beam indication device, which at least solve the problem of resource waste caused by beam indication space-time white window in the related technology.
According to an embodiment of the present invention, there is provided a method for wasting resources by indicating a space-time white window by a beam, including: generating a first type of signaling, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; transmitting the first type signaling through a control channel; and transmitting data through a data channel associated with the first type of signaling.
Optionally, the reference signal related information includes at least one of: reference signal resource set configuration, reference signal resource set, reference signal resource, reference signal antenna port, beam grouping, receive beam set, antenna set.
Optionally, the reference signal related information belongs to an element in a reference signal related information set, wherein the reference signal related information set is configured by the first communication node.
Optionally, the reference signal related information belongs to an element in a subset of a set of reference signal related information activated by a first communication node, wherein the set of reference signal related information is configured by the first communication node.
Optionally, the reference signal related information satisfies a constraint condition, wherein the constraint condition includes at least one of: configuration, sequence, time.
Optionally, the constraint condition satisfies at least one of: n1 reference signal resources recently transmitted from the first communication node; n2 reference signal resources from the most recently configured second communication node are transmitted from the first communication node; n3 reference signal resource sets recently transmitted from the first communication node; a set of reference signal resources from the most recently configured N4 nodes transmitted from the first communication node to the second communication node; reference signal resources transmitted in the last T1 time units from the first communication node; reference signal resources from the first communication node to the second communication node configured in the last T2 time units; n5 reference signal resources recently transmitted from the second communication node; n6 reference signal resources from the most recently configured second communication node to the first communication node; n7 reference signal resource sets recently transmitted from the second communication node; a set of reference signal resources from the most recently configured N8 nodes sent from the second communication node to the first communication node; reference signal resources transmitted in the last T3 time units from the second communication node; reference signal resources from the second communication node configured in the last T4 time units sent to the first communication node; n9 reference signal resources from the most recent transmission reported by the second communication node to the first communication node; the most recently transmitted set of N10 reference signal resources reported from the second communication node to the first communication node; reference signal resources transmitted in the last T5 time units reported from the second communication node to the first communication node; a reference signal measurement limit; wherein N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, T1, T2, T3, T4, T5 are integers of 1 or more.
Optionally, the control channel includes an a time domain unit and a B time domain unit, wherein the a time domain unit is advanced from the B time domain unit; scheduling the A time domain unit to bear the first type signaling; or, indicating, by the second communication node, that the first type signaling is sent through the a time domain unit bearer; or, the second communication node indicates that the first type signaling is not transmitted through the B time domain unit bearer; each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented.
Optionally, the data channel includes a C time domain unit and a D time domain unit, wherein the C time domain unit is advanced from the D time domain unit;
the data channel associated with the first type signaling is carried and transmitted through the D time domain unit; or, the second communication node indicates the data channel associated with the first type signaling to be transmitted through the C time domain unit bearer; or, the second communication node indicates that the data channel associated with the first type of signaling is not transmitted through the D unit bearer; each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented.
Optionally, the time domain range occupied by the C time domain unit and the D time domain unit is less than or equal to the time domain range of the data channel.
Optionally, configuring a data channel associated with the first type of signaling through mini-slot; or, the data channel implementation associated with the first type of signaling is implemented by mini-slot configuration definition.
Optionally, the C time domain unit carries a demodulation reference signal port associated with the second communication node, or a channel state information reference signal CSI-RS port of multi-shot/interleaved frequency division multiple access IFDMA associated with the second communication node, or a demodulation reference signal.
Optionally, a time domain first time domain symbol of the data channel associated with the first type of signaling carries a demodulation reference signal or channel state information measurement pilot CSI-RS.
Optionally, the data channel associated with the first type of signaling carries demodulation reference signals in addition to the first time domain symbol.
Optionally, the demodulation reference signal or CSI-RS carried by the first OFDM symbol employs interleaved frequency division multiple access IFDMA, or numerology different from the data unit, or a wider subcarrier width than the data unit.
Alternatively, the first demodulation reference signal or CSI-RS may occupy all time domain symbols; the other demodulation reference signals than the first demodulation reference signal occupy only part of the time domain symbols.
Optionally, in one time slot, a minimum time interval between a first type signaling and a data channel of a second communication node facing a subsequent first type signaling is X time units, and if X is greater than or equal to a threshold X1, the first type signaling is associated with the data channel; if X is smaller than the threshold X1, the first type signaling is associated with a data channel of a second communication node of a later U-th time slot; wherein, the time slot is a Transmission Time Interval (TTI) or slot, and the time unit is at least one of the following: blank interval gap, OFDM/DFT-S-OFDM symbol, mini-slot, transmission time interval TTI; x, X1 and U are integers of 1 or more.
Optionally, if the first type signaling is sent in the L time unit, the data channel of the second communication node to which the first type signaling is directed needs to be sent in the l+p time unit and later, and the first type signaling will take effect on the data channel, where L and P are integers greater than or equal to 1.
Optionally, when V slots are bound into a set of slots and there is a first type of signaling in the set of slots, the first type of signaling will take effect after the set of slots; or alternatively, the process may be performed,
transmitting a data channel associated with a first type of signaling to a second communication node through a data channel, wherein the data channel is positioned in a Z-th time slot set after a binding time slot set occupied by the first type of signaling; wherein V, Z is an integer of 1 or more.
Optionally, if Z is greater than 1, the data channels from the 1 st time slot set to the Z-1 st time slot set after the bound time slot set occupied by the first type signaling keep the beam unchanged, or the first communication node is used to send the beam of the control channel of the first type signaling to the second communication node, or the beam is configured according to a higher layer, wherein the higher layer is configured as MAC-CE or radio resource control RRC signaling configuration.
Optionally, according to the number of time slots in the time slot set, deciding to obey one of the following characteristics: the presence of a first type of signaling in the set of time slots, the first type of signaling to be validated after the set of time slots; or, the data channel associated with the first type signaling is sent to the second communication node through the data channel, and the data channel is located in the Z-th time slot set after the binding time slot set occupied by the first type signaling.
Optionally, the value of Z is determined according to the number of timeslots in the timeslot set.
Optionally, if the data channel is an uplink data channel, the interval between the uplink data channel and the downlink control channel is from an interval set.
Optionally, the interval is the longest V1 intervals in the time domain in the interval set; or alternatively, the process may be performed,
instructing, by the second communication node, the first communication node to use V1 intervals of the longest time domain in the interval set; alternatively, the first communication node is instructed by the second communication node not to use V2 intervals of the shortest time domain in the interval set, where V1 and V2 are integers greater than or equal to 1.
Optionally, the interval between the uplink data channel and the downlink control channel associated with carrying the first type of signaling is a predefined interval, where the predefined interval is defined by a protocol or is preconfigured by higher layer signaling.
According to another embodiment of the present invention, there is provided a beam pointing method. The method comprises the following steps: transmitting signaling to the first communication node, wherein the signaling is used for indicating a transmission time interval or a minimum time interval of: the first communication node sends a first type of signaling to a second communication node through a control channel, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; the first communication node transmits data to the second communication node over a data channel.
Optionally, the method further comprises: and sending data to a second communication node through a data channel associated with the first type of signaling.
Optionally, the minimum time interval is in units of 1/N time domain symbols, or time slots, or time slot sets, where N is an integer greater than or equal to 1; the time slot is a TTI or slot.
Optionally, the time interval is implicitly indicated by: communication frequency point, communication bandwidth, support capability for self-contained subframes, support capability for multiple numerologies.
According to another embodiment of the present invention, there is provided a beam pointing apparatus, for use with a first communication node, the apparatus comprising: a generating module, configured to generate a first type of signaling, where the first type of signaling includes: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; a first sending module, configured to send the first type signaling through a control channel; and the second sending module is used for sending data through the data channel associated with the first type of signaling.
Optionally, the reference signal related information includes at least one of: reference signal resource set configuration, reference signal resource set, reference signal resource, reference signal antenna port, beam grouping, receive beam set, antenna set.
Optionally, the reference signal related information belongs to an element in a reference signal related information set, wherein the reference signal related information set is configured by the first communication node.
Optionally, the reference signal related information belongs to an element in a subset of a set of reference signal related information activated by a first communication node, wherein the set of reference signal related information is configured by the first communication node.
Optionally, the reference signal related information satisfies a constraint condition, wherein the constraint condition includes at least one of: configuration, sequence, time.
Optionally, the constraint condition satisfies at least one of: n1 reference signal resources recently transmitted from the first communication node; n2 reference signal resources from the most recently configured second communication node are transmitted from the first communication node; n3 reference signal resource sets recently transmitted from the first communication node; a set of reference signal resources from the most recently configured N4 nodes transmitted from the first communication node to the second communication node; reference signal resources transmitted in the last T1 time units from the first communication node; reference signal resources from the first communication node to the second communication node configured in the last T2 time units; n5 reference signal resources recently transmitted from the second communication node; n6 reference signal resources from the most recently configured second communication node to the first communication node; n7 reference signal resource sets recently transmitted from the second communication node; a set of reference signal resources from the most recently configured N8 nodes sent from the second communication node to the first communication node; reference signal resources transmitted in the last T3 time units from the second communication node; reference signal resources from the second communication node configured in the last T4 time units sent to the first communication node; n9 reference signal resources from the most recent transmission reported by the second communication node to the first communication node; the most recently transmitted set of N10 reference signal resources reported from the second communication node to the first communication node; reference signal resources transmitted in the last T5 time units reported from the second communication node to the first communication node; a reference signal measurement limit; wherein N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, T1, T2, T3, T4, T5 are integers of 1 or more.
Optionally, the control channel includes an a time domain unit and a B time domain unit, wherein the a time domain unit is advanced from the B time domain unit; scheduling the A time domain unit to bear the first type signaling; or, indicating, by the second communication node, that the first type signaling is sent through the a time domain unit bearer; or, the second communication node indicates that the first type signaling is not transmitted through the B time domain unit bearer; each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented.
Optionally, the data channel includes a C time domain unit and a D time domain unit, wherein the C time domain unit is advanced from the D time domain unit;
the data channel associated with the first type signaling is carried and transmitted through the D time domain unit; or, the second communication node indicates the data channel associated with the first type signaling to be transmitted through the C time domain unit bearer; or, the second communication node indicates that the data channel associated with the first type of signaling is not transmitted through the D unit bearer; each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented.
Optionally, the time domain range occupied by the C time domain unit and the D time domain unit is less than or equal to the time domain range of the data channel.
Optionally, configuring a data channel associated with the first type of signaling through mini-slot; or, the data channel implementation associated with the first type of signaling is implemented by mini-slot configuration definition.
Optionally, the C time domain unit carries a demodulation reference signal port associated with the second communication node, or a channel state information reference signal CSI-RS port of multi-shot/interleaved frequency division multiple access IFDMA associated with the second communication node, or a demodulation reference signal.
Optionally, a time domain first time domain symbol of the data channel associated with the first type of signaling carries a demodulation reference signal or channel state information measurement pilot CSI-RS.
Optionally, the data channel associated with the first type of signaling carries demodulation reference signals in addition to the first time domain symbol.
Optionally, the demodulation reference signal or CSI-RS carried by the first OFDM symbol employs interleaved frequency division multiple access IFDMA, or numerology different from the data unit, or a wider subcarrier width than the data unit.
Alternatively, the first demodulation reference signal or CSI-RS may occupy all time domain symbols; the other demodulation reference signals than the first demodulation reference signal occupy only part of the time domain symbols.
Optionally, in one time slot, a minimum time interval between a first type signaling and a data channel of a second communication node facing a subsequent first type signaling is X time units, and if X is greater than or equal to a threshold X1, the first type signaling is associated with the data channel; if X is smaller than the threshold X1, the first type signaling is associated with a data channel of a second communication node of a later U-th time slot; wherein, the time slot is a Transmission Time Interval (TTI) or slot, and the time unit is at least one of the following: blank interval gap, OFDM/DFT-S-OFDM symbol, mini-slot, transmission time interval TTI; x, X1 and U are integers of 1 or more.
Optionally, if the first type signaling is sent in the L time unit, the data channel of the second communication node to which the first type signaling is directed needs to be sent in the l+p time unit and later, and the first type signaling will take effect on the data channel, where L and P are integers greater than or equal to 1.
Optionally, when V slots are bound into a set of slots and there is a first type of signaling in the set of slots, the first type of signaling will take effect after the set of slots; or alternatively, the process may be performed,
transmitting a data channel associated with a first type of signaling to a second communication node through a data channel, wherein the data channel is positioned in a Z-th time slot set after a binding time slot set occupied by the first type of signaling; wherein V, Z is an integer of 1 or more.
Optionally, if Z is greater than 1, the data channels from the 1 st time slot set to the Z-1 st time slot set after the bound time slot set occupied by the first type signaling keep the beam unchanged, or the first communication node is used to send the beam of the control channel of the first type signaling to the second communication node, or the beam is configured according to a higher layer, wherein the higher layer is configured as MAC-CE or radio resource control RRC signaling configuration.
Optionally, according to the number of time slots in the time slot set, deciding to obey one of the following characteristics: the presence of a first type of signaling in the set of time slots, the first type of signaling to be validated after the set of time slots; or, the data channel associated with the first type signaling is sent to the second communication node through the data channel, and the data channel is located in the Z-th time slot set after the binding time slot set occupied by the first type signaling.
Optionally, the value of Z is determined according to the number of timeslots in the timeslot set.
Optionally, if the data channel is an uplink data channel, the interval between the uplink data channel and the downlink control channel is from an interval set.
Optionally, the interval is the longest V1 intervals in the time domain in the interval set; or alternatively, the process may be performed,
instructing, by the second communication node, the first communication node to use V1 intervals of the longest time domain in the interval set; alternatively, the first communication node is instructed by the second communication node not to use V2 intervals of the shortest time domain in the interval set, where V1 and V2 are integers greater than or equal to 1.
Optionally, the interval between the uplink data channel and the downlink control channel associated with carrying the first type of signaling is a predefined interval, where the predefined interval is defined by a protocol or is preconfigured by higher layer signaling.
According to still another embodiment of the present invention, there is also provided a beam pointing apparatus, for use in a second communication node, the apparatus including: a third sending module, configured to send signaling to the first communication node, where the signaling is used to indicate a sending time interval or a minimum time interval of: the first communication node sends a first type of signaling to a second communication node through a control channel, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; the first communication node transmits data to the second communication node over a data channel.
Optionally, the minimum time interval is in units of 1/N time domain symbols, or time slots, or time slot sets, where N is an integer greater than or equal to 1; the time slot is a TTI or slot.
Optionally, the time interval is implicitly indicated by: communication frequency point, communication bandwidth, support capability for self-contained subframes, support capability for multiple numerologies.
According to still another embodiment of the present invention, there is also provided a storage medium. The storage medium is arranged to store program code for performing the steps of:
generating a first type of signaling, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; transmitting the first type signaling through a control channel; and transmitting data through a data channel associated with the first type of signaling.
Optionally, the storage medium is further arranged to store program code for performing the steps of:
Transmitting signaling to the first communication node, wherein the signaling is used for indicating a transmission time interval or a minimum time interval of: the first communication node sends a first type of signaling to a second communication node through a control channel, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; the first communication node transmits data to the second communication node over a data channel.
By the invention, the first type signaling is generated, wherein the first type signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; transmitting the first type signaling through a control channel; data is transmitted over the data channel associated with the first type of signaling. That is, by reasonably scheduling the resources of the users performing the beam indication on the data channel, the problem of resource waste caused by the beam indication space-time white window in the related technology is solved, and the flexibility of the beam indication transmission is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a beam pointing flow diagram according to an embodiment of the present invention;
fig. 2a is a schematic diagram of uplink, downlink control channels and data channel structures in an FDD system according to an embodiment of the present invention;
FIG. 2b is a schematic diagram of a self-contained frame according to an embodiment of the present invention;
FIG. 2c is a schematic diagram of another self-contained frame according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a frame structure of beam pointing according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a beam pointing structure according to an embodiment of the present invention;
fig. 5 is a diagram of beam pointing at a set of time slots two according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a structure for utilizing a handoff delay period according to an embodiment of the present invention;
FIG. 7 is another schematic diagram of a configuration for utilizing a handoff delay time end according to an embodiment of the present invention;
fig. 8a is a schematic diagram of a QCL associated reference signal structure according to an embodiment of the present invention;
Fig. 8b is a schematic structural diagram of a QCL associated reference signal based on TRP configuration according to an embodiment of the present invention;
fig. 8c is a schematic diagram of a structure of a QCL associated reference signal based on TRP configuration according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a structure for performing interval indication for an uplink data channel according to an embodiment of the present invention;
FIG. 10 is a flow chart of another beam pointing method according to an embodiment of the present invention;
fig. 11 is a block diagram of a beam pointing apparatus according to an embodiment of the present invention;
fig. 12 is a block diagram of another beam pointing apparatus according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
Example 1
In this embodiment, a beam indicating method is provided, fig. 1 is a beam indicating flowchart according to an embodiment of the present invention, and as shown in fig. 1, the flowchart includes the following steps:
Step S102, generating a first type of signaling, where the first type of signaling includes: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1;
it should be noted that, the reference signal related information includes, but is not limited to: reference signal resource set configuration, reference signal resource set, reference signal resource, reference signal antenna port, beam grouping, receive beam set, antenna set.
Step S104, the first type signaling is sent through a control channel;
step S106, data is sent through the data channel associated with the first type signaling.
Optionally, the execution subject of the above steps includes, but is not limited to: a first communication node, e.g., a base station.
In this embodiment, the first communication node generates a first type of signaling, where the first type of signaling includes: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; the first communication node sends the first type signaling through a control channel; the first communication node transmits data over a data channel associated with the first type of signaling. That is, by reasonably scheduling the resources of the users performing the beam indication on the data channel, the problem of resource waste caused by the beam indication space-time white window in the related technology is solved, and the flexibility of the beam indication transmission is improved.
Optionally, in this embodiment, the base station performs a method for reasonably scheduling resources of the user for beam indication on the data channel, so as to effectively use a blank window caused by beam indication decoding and beam switching. The specific method comprises time domain resource bundling, beam indication signaling scheduling uses priority demodulation OFDM/DFT-S-OFDM symbols, demodulation reference signals of other users are scheduled before the beam indication associated data channels, and a method for transmitting the reference signals. The invention can effectively solve the problem of resource waste caused by a blank window and improve the flexibility of beam indication matched transmission scheme; meanwhile, reasonable scheduling and distribution are carried out on resources among multiple users through protocol regulation and implicit indication methods.
In an alternative embodiment, the above reference signal related information belongs to an element of a reference signal related information set, wherein the reference signal related information set is configured by the first communication node. Or the reference signal related information belongs to an element in a subset of a reference signal related information set activated by the first communication node, wherein the reference signal related information set is configured by the first communication node.
It should be noted that, the above reference signal related information satisfies a constraint condition, where the constraint condition includes at least one of the following: configuration, sequence, time.
Optionally, the above constraint satisfies at least one of: n1 reference signal resources recently transmitted from the first communication node; n2 reference signal resources from the most recently configured second communication node are transmitted from the first communication node; n3 reference signal resource sets recently transmitted from the first communication node; a set of reference signal resources from the most recently configured N4 nodes transmitted from the first communication node to the second communication node; reference signal resources transmitted in the last T1 time units from the first communication node; reference signal resources from the first communication node to the second communication node configured in the last T2 time units; n5 reference signal resources recently transmitted from the second communication node; n6 reference signal resources from the most recently configured second communication node to the first communication node; n7 reference signal resource sets recently transmitted from the second communication node; a set of reference signal resources from the most recently configured N8 nodes sent from the second communication node to the first communication node; reference signal resources transmitted in the last T3 time units from the second communication node; reference signal resources from the second communication node configured in the last T4 time units sent to the first communication node; n9 reference signal resources from the most recent transmission reported by the second communication node to the first communication node; the most recently transmitted set of N10 reference signal resources reported from the second communication node to the first communication node; reference signal resources transmitted in the last T5 time units reported from the second communication node to the first communication node; a reference signal measurement limit; wherein N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, T1, T2, T3, T4, T5 are integers of 1 or more.
In an optional embodiment, the control channel includes an a time domain unit and a B time domain unit, where the a time domain unit is advanced from the B time domain unit; scheduling the A time domain unit to bear the first type signaling; or, indicating, by the second communication node, that the first type signaling is sent through the a time domain unit bearer; or, indicating, by the second communication node, that the first type signaling is not sent through the B time domain unit bearer; each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented.
In an optional embodiment, the data channel includes a C time domain unit and a D time domain unit, wherein the C time domain unit is advanced from the D time domain unit; the data channel associated with the first type signaling is carried and transmitted through the D time domain unit; or, the second communication node indicates the data channel associated with the first type signaling to be transmitted through the C time domain unit bearer; or, the second communication node indicates that the data channel associated with the first type of signaling is not transmitted through the D unit bearer; each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented.
Wherein, the time domain range occupied by the C time domain unit and the D time domain unit is smaller than or equal to the time domain range of the data channel.
Optionally, the method can be realized by configuring a data channel associated with the first type of signaling through mini-slot; or, the data channel implementation associated with the first type of signaling is implemented by mini-slot configuration definition.
The above-mentioned C time domain unit carries a demodulation reference signal port associated with the second communication node, or a channel state information reference signal CSI-RS port of multi-shot/interleaved frequency division multiple access IFDMA associated with the second communication node, or a demodulation reference signal.
Optionally, a time domain first time domain symbol of the data channel associated with the first type of signaling carries a demodulation reference signal or channel state information measurement pilot CSI-RS. The data channel associated with the first type of signaling carries demodulation reference signals in addition to the first time domain symbol.
The demodulation reference signal or CSI-RS carried by the first OFDM symbol uses interleaved frequency division multiple access IFDMA, or numerology different from the data unit, or a wider subcarrier width than the data unit.
In an alternative embodiment, the first demodulation reference signal or CSI-RS may occupy all time domain symbols; the other demodulation reference signals than the first demodulation reference signal occupy only part of the time domain symbols.
Optionally, in one time slot, a minimum time interval between the first type signaling and a data channel of a second communication node facing the first type signaling is X time units, and if X is greater than or equal to a threshold X1, the first type signaling is associated with the data channel; if X is smaller than the threshold X1, the first type signaling is associated with the data channel of the second communication node of the U-th time slot; wherein the time slot is a transmission time interval TTI or slot, and the time unit is at least one of the following: blank interval gap, OFDM/DFT-S-OFDM symbol, mini-slot, transmission time interval TTI; x, X1 and U are integers of 1 or more.
If the first type signaling is sent in the L time unit, the data channel of the second communication node to which the first type signaling is directed needs to be sent in the l+p time unit and later, and the first type signaling will be effective on the data channel, where L and P are integers greater than or equal to 1.
When V slots are bound into a set of slots and there is a first type of signaling in the set of slots, the first type of signaling will take effect after the set of slots; or, transmitting a data channel associated with the first type signaling to the second communication node through the data channel, wherein the data channel is positioned in a Z-th time slot set after the binding time slot set occupied by the first type signaling; wherein V, Z is an integer of 1 or more. If Z is greater than 1, the data channels from the 1 st time slot set to the Z-1 st time slot set after the bound time slot set occupied by the first type signaling keep the beam unchanged, or the first communication node is used to send the beam of the control channel of the first type signaling to the second communication node, or the beam is configured according to a higher layer, wherein the higher layer is configured as MAC-CE or radio resource control RRC signaling configuration.
In an alternative embodiment, the decision is made to obey one of the following features based on the number of slots in the set of slots: the presence of a first type of signaling in the set of time slots, the first type of signaling to be validated after the set of time slots; or, the data channel associated with the first type signaling is sent to the second communication node through the data channel, and the data channel is located in the Z-th time slot set after the binding time slot set occupied by the first type signaling. Or, according to the number of time slots in the time slot set, determining the value of Z.
Optionally, if the data channel is an uplink data channel, the interval between the uplink data channel and the downlink control channel is from the interval set. The interval is the longest V1 intervals in the time domain in the interval set; or, instructing, by the second communication node, the first communication node to use V1 intervals in the interval set that are longest in the time domain; alternatively, the first communication node is instructed by the second communication node not to use V2 intervals of the shortest time domain in the interval set, where V1 and V2 are integers greater than or equal to 1.
In an alternative embodiment, the interval between the uplink data channel and the downlink control channel associated with the first type of signaling is a predefined interval, wherein the predefined interval is defined by a protocol or preconfigured by higher layer signaling.
The present embodiment is illustrated below with reference to specific examples.
In an example, the first communication node corresponds to a base station, gNB, or TRP, and the second channel node corresponds to a User Equipment (UE). IFDMA means that subcarriers occupied by the user are uniformly distributed on the transmission frequency band. If there is only one user or broadcast to a group of users, there is only a value on the subcarrier associated with that user or group of users, the other subcarriers may be 0 power.
The data channel comprises a data unit and a reference signal; control channels including a downlink control channel (PDCCH) and an uplink control channel (PUCCH); the signaling is associated with a data channel, meaning that the signaling is effective on the data channel or a reference signal on the data channel; in the first type of signaling, the associated data channel refers to a data channel where the first type of signaling works, wherein the associated method includes directly establishing a relationship indication between the first type of signaling and the acting data channel, and also includes an effective acting time-frequency window of the first signaling. The time-frequency window comprises a starting time and a valid time interval for the first type of signaling to indicate the signaling to be valid, or the first type of signaling only indicates the starting time for the signaling to be valid, and the first type of signaling is continuously valid until the next time the first type of signaling is sent to be valid.
The reference signal includes at least one of: cell Reference Signals (CRS), channel state information reference signals (CSI-RS), beam-managed channel state information reference signals, channel state information interference measurement signals (CSI-IM), demodulation reference signals (DMRS), downlink demodulation reference signals, uplink demodulation reference signals, channel Sounding Reference Signals (SRS), phase tracking reference signals (PT-RS), mobile related reference signals (MRS), beam Reference Signals (BRS), beam Refinement Reference Signals (BRRS), random access channel signals (RACH), synchronization Signals (SS), synchronization signal blocks (SS block), primary Synchronization Signals (PSS), secondary Synchronization Signals (SSs).
The above channel characteristics include physical propagation channel characteristics, such as a horizontal transmission azimuth, a vertical transmission azimuth, a horizontal reception azimuth, a vertical reception azimuth, and the like, and also include characteristics of radio frequency and baseband circuits, such as antenna array characteristics (element pattern), antenna groups, balance panels, antenna sub-arrays (antenna sub-arrays), transmit/receive units (TXRUs), a set of reception beams, antenna placement, and baseband time offset, frequency offset, and phase noise, and the like.
The beam may be a resource (e.g., an originating precoding, a receiving precoding, an antenna port, an antenna weight vector, an antenna weight matrix, etc.), and the beam symbol may be replaced with a resource index because the beam may be transmission bonded with some time-frequency code resources. The beam may also be a transmission (transmit/receive) mode; the transmission mode may include space division multiplexing, frequency/time domain diversity, and the like.
The beam indication refers to that the transmitting end can indicate that the current reference signal and the antenna port satisfy a quasi co-location (QCL) assumption with the reference signal (or base reference signal) and the antenna port of the base station scanning or UE feedback report.
The received beam refers to a beam of a receiving end which does not need to be indicated, or a beam resource of the receiving end under the quasi co-location (QCL) indication of a reference signal (or a reference signal) and an antenna port which can be scanned by a base station or reported by a UE through the current reference signal and the antenna port.
Parameters related to the quasi co-location (QCL) at least comprise Doppler spread, doppler shift, delay spread, average delay and average gain; spatial parameter information, such as angle of arrival, spatial correlation of the received beam, average delay, correlation of the time-frequency channel response (including phase information), may also be included.
The slot (slot) unit includes two parts, a control channel and a data channel. Among them, the control channels may be divided into uplink control channels (PUCCH) and downlink control channels (PDCCH), and the data channels include uplink data channels (PUSCH) and downlink data channels (PDSCH). In an FDD system, PUCCH and PUSCH constitute an uplink channel, and PDCCH and PDSCH constitute a downlink channel. In a self-contained frame, a channel may be composed of two possible combinations: PDCCH, PDSCH, gap and PUCCH; PDCCH, gap, PUSCH and PUCCH;
Fig. 2a is a schematic diagram of uplink and downlink control channels and data channel structures in an FDD system according to an embodiment of the present invention. Wherein the control channel comprises A, B two time domain regions, where a is advanced by B, and similarly the data channel is divided into C, D two time domain regions, where C is advanced by D. The time-domain resolution granularity of the distinction A, B, C, D is OFDM symbol or DFT-S-OFDM. In addition, smaller time-domain resolution granularity, such as fractional time-domain resolution granularity, is also included, where the implementation includes using IFDMA, wider subcarriers (different numerology), and so on.
Fig. 2b is a schematic diagram of the structure of a self-contained frame, i.e. PDCCH, PDSCH, gap and PUCCH, according to an embodiment of the present invention. Similar to the case in fig. 2 (a), the downlink control channel is divided into two areas a and B (a time domain is advanced by B); the downlink data channel is divided into two regions C and D (C time domain advanced D).
Fig. 2c is a schematic diagram of the structure of another self-contained frame, PDCCH, gap, PUSCH and PUCCH, according to an embodiment of the present invention. Dividing a downlink control channel into an A region and a B region (A time domain is advanced by B); the uplink data channel is divided into two regions C and D (C time domain advanced D).
Fig. 3 is a schematic frame structure of beam indication according to an embodiment of the present invention, wherein the first type of signaling contains indication information: the antenna ports of the demodulation reference signals of the data channels associated with the first type of signaling, and the information related to the reference signals satisfy the quasi co-location (QCL) assumption. Since beam pointing will result in beam switching, the user needs time to demodulate the beam switching pointing information. Thus, a sufficient time margin needs to be prepared to compensate for the beam switching consumption, for example: placing a first type of signaling containing beam indication in the area A; placing the data channel associated with the first type signaling in the D area; and the areas B and C can be used for bearing control information or data information of other users. Loss is avoided by scheduling other beam-free indication requiring users without sacrificing spectral efficiency.
Fig. 4 is a schematic diagram of a beam indication structure according to an embodiment of the present invention, in which a, B and C areas correspond to 1 OFDM symbol, respectively, and the first type of signaling is carried by the first OFDM symbol. The data channel associated with the first type of signaling starts from the fourth OFDM. The B region carries control signaling of other users, and the C region carries demodulation reference signals DMRS of the service and other users. From the configuration of the demodulation reference signal, the first and second OFDM symbols of the data channel carry front-loaded DMRS symbols, where the DMRS ports do not employ time domain OCC/CDM. Thus, the system may allocate OFDM ports of other users to DMRS ports on the first OFDM symbol, and DMRS ports on the second OFDM symbol to users of the first type of signaling.
Furthermore, a method of implementing a data channel indication for D includes puncturing and partitioning a particular time domain region of slots to a particular user using mini-slot signaling.
Fig. 5 is a diagram of beam pointing at a set of time slots, according to an embodiment of the present invention. TRP configures slot set bundling, i.e. slot bundling, to the UE while remaining unchanged for the beams in bundling. Thus, the time slots are grouped into a minimum unit for beam switching. In any time slot in the ith time slot set, TRP sends a first type signaling to UE; this signaling will take effect on i+j slot set slot bundling. For example, once validated, the first type of signaling will be validated until the next indication update, or validated for the x time slot sets and then invalidated. While the beams for the i+1 to i+j-1 time slots can be kept unchanged according to the beam under the i time slot or the beam forming can be realized according to the configuration preset by a high layer.
Fig. 6 is a schematic diagram of a structure for utilizing a handoff delay period according to an embodiment of the present invention. And embedding a wider subcarrier, an IFDMA or a multi-shot CSI-RS reference signal or a wider subcarrier, an IFDMA or a multi-shot DMRS reference signal between the downlink control channel and a data channel associated with the first type of user, and sending the data channel to the first type of signaling user or other users. These reference signals may be used for AGC adjustment or beam training due to multiple repetitions or shorter time-resolved particles occurring in the time-domain unit.
Fig. 7 is a schematic diagram of another configuration for utilizing a handoff delay time end according to an embodiment of the present invention. In contrast to the method of fig. 6, the data channel associated with the first type of signaling may be directly connected to the downlink control channel, i.e. there is no region C in fig. 2. At this time, the data channel associated with the first type of signaling needs to use DMRS reference signals of IFDMA/Multi-shot. Wherein multiple time-domain repeated symbols may be used for user AGC adjustment and to mitigate decoding delays. It should be emphasized that the DMRS may occupy the entire bandwidth, or may be a bandwidth allocated by a user or a Physical Resource Block (PRB).
Since a large number of reference signals are already transmitted before the first type of signaling, the associated indication information of the first type of signaling needs to be limited or certain constraints are satisfied in order to save DCI overhead and timeliness considerations. Fig. 8a is a schematic diagram of a QCL associated reference signal structure according to an embodiment of the present invention, where the first type of signaling indicates N reference signal resources that the first communication node has newly transmitted/configured. The N reference signal resources are numbered, for example, the start of the reference signal transmitted first is encoded sequentially from zero to high. The DCI indication format of the QCL associated reference signal is as follows:
Indication format-1 of QCL associated reference signal
Reference signal resource sequence number Reference signal resource port
Indication format-2 of QCL associated reference signal
Reference signal resource set sequence number Reference signal resource sequence number Reference signal resource port
Indication format-3 of QCL associated reference signal
Figure BDA0001254138490000211
Indication format-4 of QCL associated reference signal
Figure BDA0001254138490000212
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Accordingly, the constraint information for the reference signal also includes one or a combination of the following, and for the reference signal resource setting, the reference signal set, the reference signal resource and the reference signal port are encoded separately or jointly according to the constraint.
N1 reference signal resources recently transmitted from the first communication node; n2 reference signal resources from the most recently configured second communication node are transmitted from the first communication node; n3 reference signal resource sets recently transmitted from the first communication node; a set of reference signal resources from the most recently configured N4 nodes transmitted from the first communication node to the second communication node; reference signal resources transmitted in the last T1 time units from the first communication node; reference signal resources from the first communication node to the second communication node configured in the last T2 time units; n5 reference signal resources recently transmitted from the second communication node; n6 reference signal resources from the most recently configured second communication node to the first communication node; n7 reference signal resource sets recently transmitted from the second communication node; a set of reference signal resources from the most recently configured N8 nodes sent from the second communication node to the first communication node; reference signal resources transmitted in the last T3 time units from the second communication node; reference signal resources from the second communication node configured in the last T4 time units sent to the first communication node; n9 reference signal resources from the most recent transmission reported by the second communication node to the first communication node; the most recently transmitted set of N10 reference signal resources reported from the second communication node to the first communication node; reference signal resources transmitted in the last T5 time units reported from the second communication node to the first communication node; a reference signal measurement limit; wherein N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, T1, T2, T3, T4, T5 are integers of 1 or more.
Fig. 8 (b) is a schematic structural diagram of a QCL associated reference signal based on TRP configuration according to an embodiment of the present invention. The TRP configures a set of antenna ports under the reference signal resource and encodes the elements in the set, which are signaled to the UE (RRC or MAC-CE signaling) by higher layer signaling. When beam indication for the data channel is needed, the first type signaling carries corresponding sequence numbers to indicate the beam of the downlink control channel.
Fig. 8c is a schematic diagram of a QCL associated reference signal structure based on TRP configuration according to an embodiment of the present invention. The TRP configures the antenna port set under the reference signal resource to the user through the high-layer signaling, then the TRP selects part of elements in the set to activate or select to form a new subset according to the requirement of actual data transmission, and codes. Finally, the coding of the antenna ports of the QCL associated reference signal resources indicated by the first type of signaling implements beam indication.
Fig. 9 is a schematic diagram of a structure for performing interval indication for an uplink data channel according to an embodiment of the present invention. The set of intervals for the downlink and uplink channels includes four configuration scenarios, e.g., 83.3us,166.7us,333.3us configurations. If the first type of signaling is carried, the user wishes the base station to use the longest 2 intervals in the time domain in the interval set, such as 166.7us and 333.3us; alternatively, the user does not want the base station to use the time-domain shortest interval of the interval set, e.g., 83.3us. The interval set of the downlink and uplink channels may be predetermined by a protocol, or may be preconfigured by the base station through higher layer signaling.
In summary, based on the technical solution provided by the embodiments of the present invention, a method for reasonably scheduling resources of a user performing beam indication on a data channel effectively utilizes a blank window caused by beam indication decoding and beam switching. The specific method comprises the steps of time domain resource bundling, the beam indication signaling scheduling uses the priority demodulation OFDM/DFT-S-OFDM symbol, the demodulation reference signals of other users are before the beam indication associated data channels are scheduled, and the method of transmitting the reference signals. The invention can effectively solve the problem of resource waste caused by a blank window and improve the flexibility of beam indication matched transmission scheme; meanwhile, reasonable scheduling and distribution are carried out on resources among multiple users through protocol regulation and implicit indication methods.
From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
Example 2
In this embodiment, there is also provided a beam indicating method, and fig. 10 is a flowchart of another beam indicating method according to an embodiment of the present invention, as shown in fig. 10, where the flowchart includes the following steps:
step S1002, transmitting signaling to the first communication node, where the signaling is used to indicate a transmission time interval or a minimum time interval of:
the first communication node sends a first type of signaling to the second communication node through a control channel, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1;
the first communication node transmits data to the second communication node over a data channel.
Optionally, in this embodiment, the second communication node includes, but is not limited to: and the UE.
Through this embodiment, the UE sends signaling to the first communication node, where the signaling is used to indicate a transmission time interval or a minimum time interval of: the first communication node sends a first type of signaling to the second communication node through a control channel, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; the first communication node transmits data to the second communication node over a data channel. That is, by reasonably scheduling the resources of the users performing the beam indication on the data channel, the problem of resource waste caused by the beam indication space-time white window in the related technology is solved, and the flexibility of the beam indication transmission is improved.
In an alternative embodiment, data is sent to the second communication node over a data channel associated with the first type of signaling.
Optionally, the minimum interval time is in units of 1/N time domain symbols, or time slots, or time slot sets, where N is an integer greater than or equal to 1; the slot is a TTI or slot.
Wherein the interval information is implicitly indicated by the following parameters: communication frequency point, communication bandwidth, support capability for self-contained subframes, support capability for multiple numerologies.
From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
Example 3
The present embodiment also provides a beam indicating device, which is used to implement the foregoing embodiments and preferred embodiments, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
Fig. 11 is a block diagram of a beam pointing apparatus according to an embodiment of the present invention, as shown in fig. 11, including:
1) A generating module 112, configured to generate a first type of signaling, where the first type of signaling includes: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1;
2) A first sending module 114, configured to send the first type of signaling through a control channel;
3) A second sending module 116, configured to send data through a data channel associated with the first type of signaling.
By the device shown in fig. 11, the problem of resource waste caused by beam indication space-time white window in the related art is solved, and the flexibility of beam indication transmission is improved.
In an alternative embodiment, the reference signal related information includes at least one of: reference signal resource set configuration, reference signal resource set, reference signal resource, reference signal antenna port, beam grouping, receive beam set, antenna set.
It should be noted that each of the above modules may be implemented by software or hardware, and for the latter, it may be implemented by, but not limited to: the modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.
Example 4
The present embodiment also provides a beam indicating device, which is used to implement the foregoing embodiments and preferred embodiments, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
Fig. 12 is a block diagram of another beam pointing apparatus according to an embodiment of the present invention, as shown in fig. 12, including:
1) A third sending module 122, configured to send signaling to the first communication node, where the signaling is used to indicate a sending time interval or a minimum time interval of:
the first communication node sends a first type of signaling to the second communication node through a control channel, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; the first communication node transmits data to the second communication node over a data channel.
The device shown in fig. 12 solves the problem of resource waste caused by beam indication space-time white window in the related art, and improves the flexibility of beam indication transmission.
Optionally, the minimum interval time is in units of 1/N time domain symbols, or time slots, or time slot sets, where N is an integer greater than or equal to 1; the slot is a TTI or slot. Wherein the interval information is implicitly indicated by the following parameters: communication frequency point, communication bandwidth, support capability for self-contained subframes, support capability for multiple numerologies.
Example 5
The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the above-described storage medium may be configured to store program code for performing the steps of:
s1, generating a first type of signaling, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1;
s2, the first type signaling is sent through a control channel;
and S3, transmitting data through a data channel associated with the first type of signaling.
Optionally, the storage medium is further arranged to store program code for performing the steps of:
s4, signaling is sent to the first communication node, wherein the signaling is used for indicating a sending time interval or a minimum time interval of the following contents: the first communication node sends a first type of signaling to the second communication node through a control channel, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1; the first communication node transmits data to the second communication node over a data channel.
Alternatively, in the present embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Alternatively, in the present embodiment, the processor performs the above steps S1, S2, and S3 according to the program code stored in the storage medium.
Alternatively, in the present embodiment, the processor performs the above step S4 according to the program code stored in the storage medium.
Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments and optional implementations, and this embodiment is not described herein.
It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a memory device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps within them may be fabricated into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (32)

1. A method of beam pointing comprising:
generating a first type of signaling, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1;
transmitting the first type signaling through a control channel, wherein the control channel comprises an A time domain unit and a B time domain unit, and the A time domain unit is advanced to the B time domain unit; scheduling the A time domain unit to bear the first type signaling; or, indicating, by the second communication node, that the first type signaling is sent through the a time domain unit bearer; or, the second communication node indicates that the first type signaling is not transmitted through the B time domain unit bearer; wherein each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented;
And transmitting data through a data channel associated with the first type of signaling.
2. The method of claim 1, wherein the reference signal related information comprises at least one of:
reference signal resource set configuration, reference signal resource set, reference signal resource, reference signal antenna port, beam grouping, receive beam set, antenna set.
3. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the reference signal related information belongs to an element in a reference signal related information set, wherein the reference signal related information set is configured by a first communication node.
4. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the reference signal related information belongs to an element in a subset of a set of reference signal related information activated by a first communication node, wherein the set of reference signal related information is configured by the first communication node.
5. A method according to claim 3, wherein the reference signal related information satisfies a constraint, wherein the constraint comprises at least one of: configuration, sequence, time.
6. The method of claim 5, wherein the constraint satisfies at least one of:
N1 reference signal resources recently transmitted from the first communication node;
n2 reference signal resources from the most recently configured second communication node are transmitted from the first communication node;
n3 reference signal resource sets recently transmitted from the first communication node;
a set of reference signal resources from the most recently configured N4 nodes transmitted from the first communication node to the second communication node;
reference signal resources transmitted in the last T1 time units from the first communication node;
reference signal resources from the first communication node to the second communication node configured in the last T2 time units;
n5 reference signal resources recently transmitted from the second communication node;
n6 reference signal resources from the most recently configured second communication node to the first communication node;
n7 reference signal resource sets recently transmitted from the second communication node;
a set of reference signal resources from the most recently configured N8 nodes sent from the second communication node to the first communication node;
reference signal resources transmitted in the last T3 time units from the second communication node;
reference signal resources from the second communication node configured in the last T4 time units sent to the first communication node;
N9 reference signal resources from the most recent transmission reported by the second communication node to the first communication node;
the most recently transmitted set of N10 reference signal resources reported from the second communication node to the first communication node;
reference signal resources transmitted in the last T5 time units reported from the second communication node to the first communication node;
a reference signal measurement limit;
wherein N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, T1, T2, T3, T4, T5 are integers of 1 or more.
7. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the data channel comprises a C time domain unit and a D time domain unit, wherein the C time domain unit is advanced to the D time domain unit;
the data channel associated with the first type signaling is carried and transmitted through the D time domain unit; or alternatively, the process may be performed,
indicating a data channel associated with the first type of signaling to be transmitted through the C time domain unit bearer by the second communication node; or alternatively, the process may be performed,
indicating, by the second communication node, that a data channel associated with the first type of signaling is not transmitted through the D-cell bearer;
each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented.
8. The method of claim 7, wherein the step of determining the position of the probe is performed,
and the time domain range occupied by the C time domain unit and the D time domain unit is smaller than or equal to the time domain range of the data channel.
9. The method of claim 7, wherein the step of determining the position of the probe is performed,
the data channel associated with the first type of signaling is configured through mini-slot; or, the data channel implementation associated with the first type of signaling is implemented by mini-slot configuration definition.
10. The method of claim 7, wherein the step of determining the position of the probe is performed,
the C time domain unit carries a demodulation reference signal port associated with a second communication node, or a channel state information reference signal (CSI-RS) port of multi-shot/Interleaved Frequency Division Multiple Access (IFDMA) associated with the second communication node, or a demodulation reference signal.
11. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the first time domain symbol of the time domain of the data channel associated with the first type of signaling carries a demodulation reference signal or channel state information measurement pilot CSI-RS.
12. The method of claim 11, wherein the step of determining the position of the probe is performed,
the data channel associated with the first type of signaling carries demodulation reference signals in addition to the first time domain symbol.
13. The method of claim 11, wherein the step of determining the position of the probe is performed,
the demodulation reference signal or CSI-RS carried by the first OFDM symbol adopts interleaved frequency division multiple access IFDMA, or numerology different from the data unit, or a wider subcarrier width than the data unit.
14. The method of claim 11, wherein the step of determining the position of the probe is performed,
the first demodulation reference signal or CSI-RS may occupy all time domain symbols; the other demodulation reference signals than the first demodulation reference signal occupy only part of the time domain symbols.
15. The method of claim 1, wherein the step of determining the position of the substrate comprises,
in one time slot, the minimum time interval between the first type signaling and the data channel of the second communication node facing the first type signaling is X time units,
if X is greater than or equal to a threshold X1, the first type signaling is associated with the data channel;
if X is smaller than the threshold X1, the first type signaling is associated with a data channel of a second communication node of a later U-th time slot;
wherein, the time slot is a Transmission Time Interval (TTI) or slot, and the time unit is at least one of the following: blank interval gap, OFDM/DFT-S-OFDM symbol, mini-slot, transmission time interval TTI; x, X1 and U are integers of 1 or more.
16. The method of claim 1, wherein the step of determining the position of the substrate comprises,
if the first type signaling is sent in the L time unit, the data channel of the second communication node to which the first type signaling is directed needs to be sent in the l+p time unit and later, and the first type signaling will take effect on the data channel, where L and P are integers greater than or equal to 1.
17. The method of claim 1, wherein the step of determining the position of the substrate comprises,
when V slots are bound into a set of slots and there is a first type of signaling in the set of slots, the first type of signaling will take effect after the set of slots; or alternatively, the process may be performed,
transmitting a data channel associated with a first type of signaling to a second communication node through a data channel, wherein the data channel is positioned in a Z-th time slot set after a binding time slot set occupied by the first type of signaling; wherein V, Z is an integer of 1 or more.
18. The method of claim 17, wherein the step of determining the position of the probe is performed,
if Z is greater than 1, the data channels from the 1 st time slot set to the Z-1 st time slot set after the bonded time slot set occupied by the first type signaling maintain the beam unchanged, or,
a beam of a control channel for the first type of signaling is transmitted to the second communication node using the first communication node, or,
According to the beam configured by the higher layer, wherein the higher layer is configured as MAC-CE or radio resource control RRC signaling configuration.
19. The method of claim 17, wherein the decision to obey one of the following features is based on the number of slots in the set of slots:
the presence of a first type of signaling in the set of time slots, the first type of signaling to be validated after the set of time slots; or alternatively, the process may be performed,
and transmitting a data channel associated with the first type of signaling to the second communication node through the data channel, wherein the data channel is positioned in a Z-th time slot set after the binding time slot set occupied by the first type of signaling.
20. The method of claim 17 wherein the value of Z is determined based on the number of slots in the set of slots.
21. The method of claim 1, wherein the step of determining the position of the substrate comprises,
if the data channel is an uplink data channel, the interval between the uplink data channel and the downlink control channel is from an interval set.
22. The method of claim 21, wherein the step of determining the position of the probe is performed,
the interval is the longest V1 intervals in the time domain in the interval set; or alternatively, the process may be performed,
instructing, by the second communication node, the first communication node to use V1 intervals of the longest time domain in the interval set; or alternatively, the process may be performed,
The first communication node is instructed by the second communication node not to use V2 intervals with the shortest time domain in the interval set, wherein V1 and V2 are integers greater than or equal to 1.
23. The method of claim 21, wherein the step of determining the position of the probe is performed,
the interval between the uplink data channel and the downlink control channel associated with carrying the first type of signaling is a predefined interval,
wherein the predefining is defined by a protocol or preconfigured by higher layer signaling.
24. A method of beam pointing comprising:
transmitting signaling to the first communication node, wherein the signaling is used for indicating a transmission time interval or a minimum time interval of:
the first communication node sends a first type of signaling to a second communication node through a control channel, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, wherein the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet quasi co-location assumption, Q, K is an integer greater than or equal to 1, and the control channel comprises an A time domain unit and a B time domain unit, and the A time domain unit is advanced to the B time domain unit; scheduling the A time domain unit to bear the first type signaling; or, indicating, by the second communication node, that the first type signaling is sent through the a time domain unit bearer; or, the second communication node indicates that the first type signaling is not transmitted through the B time domain unit bearer; wherein each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented;
The first communication node transmits data to the second communication node over a data channel.
25. The method of claim 24, wherein the method further comprises:
and sending data to a second communication node through a data channel associated with the first type of signaling.
26. The method of claim 24, wherein the step of determining the position of the probe is performed,
the minimum time interval takes 1/N time domain symbols, or time slots, or time slot sets as a unit, wherein N is an integer greater than or equal to 1; the time slot is a TTI or slot.
27. The method of claim 24, wherein the step of determining the position of the probe is performed,
the time interval is implicitly indicated by the following parameters: communication frequency point, communication bandwidth, support capability for self-contained subframes, support capability for multiple numerologies.
28. A beam pointing apparatus for use with a first communication node, comprising:
a generating module, configured to generate a first type of signaling, where the first type of signaling includes: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet the quasi co-location assumption, and Q, K is an integer greater than or equal to 1;
A first sending module, configured to send the first type of signaling through a control channel, where the control channel includes an a time domain unit and a B time domain unit, and the a time domain unit is advanced from the B time domain unit; scheduling the A time domain unit to bear the first type signaling; or, indicating, by the second communication node, that the first type signaling is sent through the a time domain unit bearer; or, the second communication node indicates that the first type signaling is not transmitted through the B time domain unit bearer; wherein each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented;
and the second sending module is used for sending data through the data channel associated with the first type of signaling.
29. The apparatus of claim 28, wherein the reference signal related information comprises at least one of:
reference signal resource set configuration, reference signal resource set, reference signal resource, reference signal antenna port, beam grouping, receive beam set, antenna set.
30. A beam pointing apparatus for use with a second communication node, comprising:
A third sending module, configured to send signaling to the first communication node, where the signaling is used to indicate a sending time interval or a minimum time interval of:
the first communication node sends a first type of signaling to a second communication node through a control channel, wherein the first type of signaling comprises: the mapping relation between the Q demodulation reference signal antenna port sets and the K reference signal related information of the data channel associated with the first type signaling, wherein the demodulation reference signal antenna port sets and the reference signal related information with the mapping relation meet quasi co-location assumption, Q, K is an integer greater than or equal to 1, and the control channel comprises an A time domain unit and a B time domain unit, and the A time domain unit is advanced to the B time domain unit; scheduling the A time domain unit to bear the first type signaling; or, indicating, by the second communication node, that the first type signaling is sent through the a time domain unit bearer; or, the second communication node indicates that the first type signaling is not transmitted through the B time domain unit bearer; wherein each time domain unit at least comprises one time domain symbol or one sub-time domain symbol after the time domain symbol is segmented;
The first communication node transmits data to the second communication node over a data channel.
31. The apparatus of claim 30, wherein the device comprises a plurality of sensors,
the minimum time interval takes 1/N time domain symbols, or time slots, or time slot sets as a unit, wherein N is an integer greater than or equal to 1; the time slot is a TTI or slot.
32. The apparatus of claim 31, wherein the device comprises a plurality of sensors,
the time interval is implicitly indicated by the following parameters: communication frequency point, communication bandwidth, support capability for self-contained subframes, support capability for multiple numerologies.
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