CN112187320B - Antenna port determining method and communication equipment - Google Patents
Antenna port determining method and communication equipment Download PDFInfo
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- CN112187320B CN112187320B CN201910604781.8A CN201910604781A CN112187320B CN 112187320 B CN112187320 B CN 112187320B CN 201910604781 A CN201910604781 A CN 201910604781A CN 112187320 B CN112187320 B CN 112187320B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
Abstract
The embodiment of the invention provides an antenna port determining method and communication equipment, wherein the method comprises the following steps: determining an antenna port set corresponding to each TCI state in a plurality of TCI states, wherein each TCI state has a corresponding relation with the antenna port set; determining an antenna port of each antenna port set according to a first value in antenna port configuration, wherein the first value is used for indicating the antenna port of each antenna port set. The embodiment of the invention can improve the frequency band utilization rate of the communication system.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an antenna port determining method and a communication device.
Background
Coordinated multipoint transmission techniques are supported in some communication systems, for example: a multi-Transmission Reception Point (TRP) or multi-panel Transmission technology is introduced into a 5G communication system. However, in the current communication system, the network side can only indicate a group of Demodulation Reference Signal (DMRS) antenna ports to the terminal, so that when a plurality of TRPs or panels transmit, the plurality of TRPs or panels can only be restricted to transmit using the same number of layers, that is, only one Transmission Configuration Indication state (tcstate) Transmission is supported, and thus the bandwidth utilization ratio of the communication system is low.
Disclosure of Invention
The embodiment of the invention provides an antenna port determining method and communication equipment, and aims to solve the problem that the frequency band utilization rate of a communication system is low.
The embodiment of the invention provides an antenna port determining method, which comprises the following steps:
determining an antenna port set corresponding to each TCI state in a plurality of transmission configuration indication states TCI state, wherein each TCI state and the antenna port set have a corresponding relationship;
determining an antenna port of each antenna port set according to a first value in antenna port configuration, wherein the first value is used for indicating the antenna port of each antenna port set.
Optionally, the first value is further used to indicate an antenna port union, where the antenna port union includes antenna ports in the antenna port sets.
Optionally, frequency domain resources corresponding to the multiple TCI states do not overlap; or
Time domain resources corresponding to the TCI states are not overlapped; or
And the time domain and frequency domain resources corresponding to the TCI states are not overlapped.
Optionally, the multiple TCI states include a first TCI state and a second TCI state, where an antenna port set corresponding to the first TCI state is the antenna port union set, and an antenna port set corresponding to the second TCI state is a subset of the antenna port union set.
Optionally, each TCI state and the antenna port set have a fixed one-to-one correspondence; or
The corresponding relation between each TCI state and the antenna port set is a one-to-one corresponding relation indicated by the first value dynamic state.
Optionally, the first partial value in the antenna port configuration is used to indicate an antenna port union set, and indicate antenna ports of multiple antenna port sets, and indicate an antenna port set corresponding to the TCI state, and the second partial value in the antenna port configuration is used to indicate an antenna port set; or
The antenna port configuration comprises a plurality of values, and the plurality of values are all used for indicating an antenna port union set, indicating antenna ports of a plurality of antenna port sets, and indicating an antenna port set corresponding to a TCI state.
Optionally, the antenna port is configured to configure the following:
a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a corresponding relation between a TCI state corresponding to each value and the antenna port set; or, a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a correspondence between the TCI state and the antenna port set corresponding to a part or all of the values of the plurality of values.
An embodiment of the present invention further provides a communication device, including:
the device comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for determining an antenna port set corresponding to each TCI state in a plurality of TCI states, and each TCI state and the antenna port set have a corresponding relation;
a second determining module, configured to determine an antenna port of each antenna port set according to a first value in an antenna port configuration, where the first value is used to indicate the antenna port of each antenna port set.
Optionally, the first value is further used to indicate an antenna port union, where the antenna port union includes antenna ports in the antenna port sets.
Optionally, frequency domain resources corresponding to the multiple TCI states do not overlap; or
Time domain resources corresponding to the TCI states are not overlapped; or
And the time domain and frequency domain resources corresponding to the TCI states are not overlapped.
Optionally, the multiple TCI states include a first TCI state and a second TCI state, where an antenna port set corresponding to the first TCI state is the antenna port union set, and an antenna port set corresponding to the second TCI state is a subset of the antenna port union set.
Optionally, each TCI state has a fixed one-to-one correspondence with an antenna port set; or
The corresponding relation between each TCI state and the antenna port set is a one-to-one corresponding relation indicated by the first value dynamic state.
Optionally, the first partial value in the antenna port configuration is used to indicate an antenna port union set, and indicate antenna ports of multiple antenna port sets, and indicate an antenna port set corresponding to the TCI state, and the second partial value in the antenna port configuration is used to indicate an antenna port set; or
The antenna port configuration comprises a plurality of values, and the plurality of values are all used for indicating an antenna port union set, indicating antenna ports of a plurality of antenna port sets, and indicating an antenna port set corresponding to a TCI state.
Optionally, the antenna port is configured to configure the following:
a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a corresponding relation between a TCI state corresponding to each value and the antenna port set; or, a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a correspondence between the TCI state and the antenna port set corresponding to a part or all of the values of the plurality of values.
An embodiment of the present invention further provides a communication device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,
the transceiver or the processor is configured to determine an antenna port set corresponding to each TCI state in a plurality of TCI states, where each TCI state has a corresponding relationship with the antenna port set; and determining an antenna port of each antenna port set according to a first value in the antenna port configuration, wherein the first value is used for indicating the antenna port of each antenna port set.
Optionally, the first value is further used to indicate an antenna port union, where the antenna port union includes antenna ports in the antenna port sets.
Optionally, frequency domain resources corresponding to the multiple TCI states do not overlap; or
Time domain resources corresponding to the TCI states are not overlapped; or
And the time domain and frequency domain resources corresponding to the TCI states are not overlapped.
Optionally, the multiple TCI states include a first TCI state and a second TCI state, where an antenna port set corresponding to the first TCI state is the antenna port union set, and an antenna port set corresponding to the second TCI state is a subset of the antenna port union set.
Optionally, each TCI state and the antenna port set have a fixed one-to-one correspondence; or
The corresponding relation between each TCI state and the antenna port set is a one-to-one corresponding relation indicated by the first value dynamic state.
Optionally, the first partial value in the antenna port configuration is used to indicate an antenna port union set, and indicate antenna ports of multiple antenna port sets, and indicate an antenna port set corresponding to a TCI state, and the second partial value in the antenna port configuration is used to indicate an antenna port set; or
The antenna port configuration comprises a plurality of values, and the plurality of values are all used for indicating an antenna port union set, indicating antenna ports of a plurality of antenna port sets, and indicating an antenna port set corresponding to a TCI state.
Optionally, the antenna port is configured to configure the following:
a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a corresponding relation between a TCI state corresponding to each value and the antenna port set; or, a plurality of values including the first value, a union set of antenna ports corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a correspondence relationship between a TCI state and an antenna port set corresponding to a part or all of the values.
The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps in the antenna port determination method provided in the embodiment of the present invention.
In the embodiment of the invention, an antenna port set corresponding to each TCI state in a plurality of TCI states is determined, wherein each TCI state and the antenna port set have a corresponding relation; determining an antenna port of each antenna port set according to a first value in antenna port configuration, wherein the first value is used for indicating the antenna port of each antenna port set. Therefore, the corresponding antenna port set can be respectively determined for a plurality of TCI states, so that multi-TCI state transmission is supported, and the frequency band utilization rate of a communication system is improved.
Drawings
FIG. 1 is a schematic diagram of a network architecture to which embodiments of the present invention are applicable;
fig. 2 is a flowchart of an antenna port determination method according to an embodiment of the present invention;
fig. 3 is a block diagram of a communication device according to an embodiment of the present invention;
fig. 4 is a block diagram of another communication device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic diagram of a network structure to which the embodiment of the present invention is applicable, and as shown in fig. 1, the network structure includes a terminal 11 and a network side device 12, where the terminal 11 may be a User Equipment (UE) or other terminal devices, for example: the present invention relates to a Mobile terminal, and more particularly to a Mobile terminal, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), a robot, a vehicle, and other terminal-side devices. The network side device 12 may be a base station, for example: macro station, LTE eNB, 5G NR NB, etc.; the network side device may also be a small station, such as a Low Power Node (LPN), pico, femto, or the network side device may be an Access Point (AP); the network side device may also be a network node formed by a Central Unit (CU) and a plurality of Transmission Reception Points (TRPs) managed and controlled by the CU. It should be noted that, in the embodiment of the present invention, the specific type of the network-side device is not limited.
It should be noted that the embodiment of the present invention may be applied to a communication system supporting coordinated multipoint transmission technology, for example: the 5G communication system is, of course, not limited to be applied to the 5G communication system, and for example: the method can also be applied to a communication system of subsequent evolution, or a 4G communication system and the like.
Referring to fig. 2, fig. 2 is a flowchart of an antenna port determining method according to an embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:
The TCI states may be configured by the network side device to the terminal, but are not limited to this, for example: it can also be terminal-requested or terminal-self-configuring.
In addition, in the embodiment of the present invention, one TCI state may correspond to one TRP, or may correspond to one beam in one TRP.
The correspondence relationship between each TCI state and the antenna port set may be configured in advance, for example: fixed correspondence, or dynamically indicated, and one TCI state corresponds to one antenna port set.
In addition, in the embodiment of the present invention, the number of antenna ports included in different antenna port sets may be the same or different, for example: TCI state 0 corresponds to port set (0,1), and TCI state 1 corresponds to port set (0).
The antenna port configuration may be configured in advance for the terminal by the network side device, or may be agreed by a protocol, and the antenna port configuration may be a DMRS table (DMRS table), or other form of port configuration, where the configuration is configured with at least an antenna port union indicated by the first value and antenna ports of the antenna port sets indicated by the first value.
And the first value may be one of at least one value (e.g., one value in values in tables provided in the embodiments of the present invention) belonging to a value (value) of the antenna port configuration, and the first value may be indicated in transmitted control information, for example: the network side device sends control information to the terminal, where the control information includes the first value, and for example, the first value is indicated by a DMRS allocation indication of the control information.
The antenna ports indicating the antenna port sets may be that, the first value is used to indicate antenna ports of a plurality of antenna port sets, which include the antenna port sets determined in step 201. For example: the first value indicates that the first set of antenna ports is (0,1) and the second set of antenna ports is (0).
Since the first value may indicate the antenna ports of each antenna port set, the antenna ports of each antenna port set may be determined directly according to the first value in the antenna port configuration, where each antenna port set may refer to each antenna port set determined in step 201.
In the embodiment of the present invention, the corresponding antenna port sets may be determined for the multiple TCI states through the above steps, so as to support multiple TCI state transmission, that is, it is not necessary to restrict multiple TRPs or panels to use the same number of layers for transmission, and multiple TRPs or panels are allowed to use different number of layers for transmission, so that the total number of layers that can be used is not limited, and the frequency band utilization rate of the communication system is further improved.
Further, after the antenna ports of each antenna port set are determined, each TCI state may be used for transmission, where each TCI state is used for transmission when transmitting through the antenna ports of the corresponding antenna port set. Since multiple TCI states can be used for transmission, transmission performance can be improved.
It should be noted that the antenna port determination method provided in the embodiment of the present invention may be applied to a communication device, where the communication device may be a terminal or a network side device.
It should be noted that, in the embodiment of the present invention, the timing relationship between step 201 and step 202 is not limited, for example: as shown in fig. 2, step 201 may be executed first and then step 202 may be executed, or step 201 and step 202 may be executed simultaneously, or step 202 may be executed first and then step 201 is executed, for example: the antenna port of each antenna port set is determined, and then the antenna port set corresponding to each TCI state is determined.
As an optional implementation manner, the first value is further used to indicate an antenna port union, where the antenna port union includes antenna ports in the antenna port sets.
The first value may indicate an antenna port union, where the first value corresponds to an antenna port union, for example: the first value is used to indicate DMRS antenna ports (DMRS ports (s)), which are the union of the antenna ports. For example: the first value indicates that the antenna port union (which may be referred to as DMRS port (s)) is (0,1), and that the first antenna port set is (0,1), indicating that the second antenna port set is (0).
The antenna port union including the antenna ports in each antenna port set may be that a union of the antenna ports in each antenna port set is the antenna port union, or may be that a union of the antenna ports in each antenna port set is a part of the antenna ports of the antenna port union.
Optionally, the multiple TCI states include a first TCI state and a second TCI state, where an antenna port set corresponding to the first TCI state is the antenna port union set, and an antenna port set corresponding to the second TCI state is a subset of the antenna port union set.
The plurality of TCI states may include one or more first TCI states and one or more second TCI states.
The antenna port set corresponding to the first TCI state may be the antenna port union set, and the antenna port set corresponding to the TCI state with the largest port number in the port sets corresponding to the TCI states includes port sets corresponding to all the TCI states in the plurality of TCI states. For example, the antenna port union is (0,1), TCI state 0 corresponds to port set (0,1), and TCI state 1 corresponds to port set (0).
For convenience of description, in the embodiment of the present invention, the maximum value of the number of DMRS antenna ports corresponding to each TCI state is denoted by R.
In this embodiment, the TCI state with different numbers of antenna ports can be configured, so as to improve the flexibility of transmission, meet the requirements of different services and scenes, and further improve the utilization rate of the whole frequency band.
As an optional implementation manner, frequency domain resources corresponding to the multiple TCI states do not overlap; or
Time domain resources corresponding to the TCI states are not overlapped; or alternatively
And the time domain and frequency domain resources corresponding to the TCI states are not overlapped.
For example: in a Time Division Multiplexing (TDM) transmission scheme, Time domain resources corresponding to a plurality of TCI states do not overlap, in a Frequency Division Multiplexing (FDM) transmission scheme, Frequency domain resources corresponding to a plurality of TCI states do not overlap, and in a TDM + FDM transmission scheme, Time domain and Frequency domain resources corresponding to a plurality of TCI states do not overlap.
In this embodiment, since the resources corresponding to the plurality of TCI states do not overlap, the transmission performance is better when the plurality of TCI states are used for transmission.
Of course, this is not limited, for example: when a specific transmission scheme is specified on the network side, such as a TDM, FDM, or TDM + FDM transmission scheme, the antenna port set corresponding to each TCI state and the antenna ports of each antenna port set may be determined in the manner described above.
As an optional implementation manner, each TCI state has a one-to-one correspondence with an antenna port set.
The multiple TCI states may have a part of the TCI states corresponding to the same antenna port set, and of course, different TCI states may correspond to different antenna port sets.
The one-to-one correspondence may be fixed or dynamically indicated, for example:
each TCI state and the antenna port set have a fixed one-to-one corresponding relation; or
The corresponding relation between each TCI state and the antenna port set is a one-to-one corresponding relation indicated by the first value dynamic state.
For example: in the fixed relation, TCI state 0 is mapped to a first port set, and TCI state 1 is mapped to a second port set;
in the dynamic relationship, the corresponding relationship between the port set and the TCI state depends on a value (value) in an antenna port configuration (e.g., DMRS table), for example, for the first value (e.g., value a), TCI state 0 is mapped to the first port set, and TCI state 1 is mapped to the second port set; for another value (e.g., value B), TCI state 0 maps to the second set of ports and TCI state 1 maps to the first set of ports.
The fixed relation can save the overhead of antenna port configuration, and the one-to-one corresponding relation dynamically indicated by the first value can improve the flexibility of antenna port configuration.
As an optional implementation manner, the first partial value in the antenna port configuration is used to indicate an antenna port union set, and indicate antenna ports of multiple antenna port sets, and indicate an antenna port set corresponding to the TCI state, and the second partial value in the antenna port configuration is used to indicate an antenna port set.
The first partial value may be one or more values of the antenna port configuration, and each value of the first partial value may indicate an antenna port union, an antenna port of a plurality of antenna port sets, and an antenna port set corresponding to the TCI state. While the first partial value may be one or more values in the antenna port configuration, each of the second partial values indicates a set of antenna ports (which may be referred to as DMRS port (s)). It should be noted that, in the embodiment of the present invention, the antenna ports indicated by the second partial value may not be divided into subsets.
In this embodiment, a unified antenna port configuration (for example, DMRS table) may be implemented: the existing partial value may be redefined based on the antenna port configuration (e.g., DMRS table) defined in the protocol, or a new value may be added.
The following antenna ports are configured as DMRS tables, and are illustrated by tables 1 to 8, where tables 1 to 8 show examples of designs according to a uniform DMRS table manner. Wherein, only part of value is defined according to the embodiment of the invention, and the rest part follows the design defined in the protocol. It should be noted that only some values are given in the table for illustration, and other values may be specifically defined according to the embodiment of the present invention.
Table 1: fixed mapping (namely, fixed correspondence between TCI state and antenna port set), and unified DMRS table
Wherein 1 is st set denotes the first set of antenna ports, 2 nd set denotes a second set of antenna ports.
Table 1 exemplifies an Antenna port (s)) (1000+ DMRS port), and DMRS Type 1(DMRS-Type ═ 1) with a maximum length of 1(maxLength ═ 1).
The first partial values in table 1 are values with Value of 0, 2, 12 and 13, and the remaining values are the second partial values.
Table 2: dynamic mapping (namely the dynamic corresponding relation between TCI state and antenna port set), unified DMRS table
Table 2 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 1(DMRS-Type ═ 1) with a maximum length of 1(maxLength ═ 1).
The first partial values in table 2 are values with Value of 0, 2, 12 and 13, and the remaining values are the second partial values.
Table 3: fixed mapping, unified DMRS table
Table 3 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 1(DMRS-Type ═ 1) with a maximum length of 2(maxLength ═ 2).
The first partial values in table 3 are the first values with values of 0, 2, 31 and 32, and the remaining values are the second partial values.
Table 4: dynamic mapping, unified DMRS table
Table 4 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 1(DMRS-Type ═ 1) with a maximum length of 2(maxLength ═ 2).
The first partial values in table 4 are the first values with values of 0, 2, 31 and 32, and the remaining values are the second partial values.
Table 5: fixed mapping, unified DMRS table
Table 5 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 2(DMRS-Type ═ 2) with a maximum length of 1(maxLength ═ 1).
The first partial values in table 5 are the first values with values of 0, 2, 24 and 25, and the remaining values are the second partial values.
Table 6: dynamic mapping, unified DMRS table
Table 6 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 2(DMRS-Type ═ 2) with a maximum length of 1(maxLength ═ 1).
The first partial Value in table 6 is the first Value of 0, 2, 24 and 25, and the remaining values are the second partial Value.
Table 7: fixed mapping, unified DMRS table
Table 7 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 2(DMRS-Type ═ 2) with a maximum length of 2(maxLength ═ 2).
The first partial values in table 7 are the first values with values of 0, 2, 58 and 59, and the remaining values are the second partial values.
Table 8: dynamic mapping, unified DMRS table
Table 8 shows an Antenna port (s)) (1000+ DMRS port), and DMRS Type 2(DMRS-Type ═ 2) with a maximum length of 2(maxLength ═ 2).
The first partial Value in table 8 is the first Value of 0, 2, 58, and 59, and the remaining values are the second partial Value.
As an optional implementation, the antenna port configuration includes a plurality of values, and the plurality of values are all used to indicate an antenna port union set, and indicate antenna ports of a plurality of antenna port sets, and indicate an antenna port set corresponding to a TCI state.
In this embodiment, an independent antenna port configuration (for example, DMRS table) may be adopted, and the configuration includes at least the plurality of values. For example: all values that may be included in the above antenna port configuration are used to indicate an antenna port union set, and indicate antenna ports of multiple antenna port sets, and indicate an antenna port set corresponding to a TCI state. Alternatively, the content of the indication of the other value may be configured in addition to the plurality of values, which is not limited to this.
The following example of configuring the antenna ports as DMRS tables is illustrated by tables 9 to 16, where tables 9 to 16 give examples of designing DMRS tables defined individually. It should be noted that only some values are given in the table for illustration, and other values may be specifically defined according to the embodiment of the present invention.
Table 9: fixed mapping, independent DMRS table
Table 9 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 1(DMRS-Type ═ 1) with a maximum length of 1(maxLength ═ 1).
Table 10: dynamically mapped, independent DMRS tables
Table 10 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 1(DMRS-Type ═ 1) with a maximum length of 1(maxLength ═ 1).
Table 11: fixed mapping, independent DMRS table
Table 12 exemplifies an Antenna port (s)) (1000+ DMRS port), and DMRS Type 1(DMRS-Type ═ 1) with a maximum length of 2(maxLength ═ 2).
Table 13: dynamically mapped, independent DMRS tables
Table 12 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 1(DMRS-Type ═ 1) with a maximum length of 1(maxLength ═ 2).
Table 13: fixed mapping, independent DMRS table
Table 13 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 2(DMRS-Type ═ 2) with a maximum length of 1(maxLength ═ 1).
Table 14: dynamically mapped, independent DMRS tables
Table 14 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 2(DMRS-Type ═ 2) with a maximum length of 1(maxLength ═ 1).
Table 15: fixed mapping, independent DMRS table
Table 15 exemplifies an Antenna port (s)) (1000+ DMRS port), and DMRS Type 2(DMRS-Type ═ 2) with a maximum length of 2(maxLength ═ 2).
Table 16: dynamically mapped, independent DMRS tables
Table 16 exemplifies Antenna ports (s)) (1000+ DMRS port), and DMRS Type 2(DMRS-Type ═ 2) with a maximum length of 2(maxLength ═ 2).
It should be noted that, in the embodiment of the present invention, when the antenna port set corresponding to the TCI state adopts a fixed corresponding relationship, the antenna port configuration (for example, DMRS table) may not include the corresponding relationship, and the corresponding relationship may be configured in a manner.
As an optional implementation, the antenna port is configured to configure the following:
a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a corresponding relation between a TCI state corresponding to each value and the antenna port set; or, a plurality of values including the first value, each value being a union set of corresponding antenna ports, each value being an antenna port of a plurality of antenna port sets corresponding to each value, and a correspondence relationship between a TCI state and an antenna port set corresponding to a part or all of the values;
it should be noted that, in this embodiment of the present invention, the antenna port union may refer to a DMRS antenna port (may be referred to as DMRS port (s)), and specifically may include one or more antenna ports. In addition, the union set of the antenna ports indicated by the first value may be a union set of antenna ports of a plurality of antenna port sets corresponding to the first value.
Wherein the plurality of values may be the second partial values in tables 1 to 8, or may be the values in tables 9 to 16. The antenna ports corresponding to the above values may be contents included in the list of DMRS ports(s) in tables 1 to 16; the antenna ports of the antenna port sets respectively corresponding to the above values may be contents included in the column of the port sets in tables 1 to 16; the correspondence between the TCI state and the antenna port set respectively corresponding to each of the above-mentioned values or the correspondence between the TCI state and the antenna port set corresponding to all or part of the above-mentioned values may be contents included in the column of correspondence between the TCI state and the port set in tables 1 to 16.
The corresponding relationship between the TCI state and the antenna port set corresponding to each configured value may be understood as dynamically indicating the corresponding relationship between the TCI state and the antenna port set, and the corresponding relationship between the TCI state and the antenna port set corresponding to a part or all of the plurality of values may be understood as fixedly indicating the corresponding relationship between the TCI state and the antenna port set.
Taking the above antenna port configuration as a DMRS table, each of partial or all values (values) in the DMRS table (possibly, only partial values are designed according to the following rules) is at least used to indicate:
the union of port sets (i.e., the largest set, dmrport(s) in the table) corresponding to each TCI state, such as port set (0,1) in the above example;
a plurality of ports contained in the port sets;
one of the port sets is a port set indicated by a value in the DMRS table (i.e., dmrport (s));
the other port set is a subset of the port set indicated by the DMRS port(s), and may be, for example, the first Ri ports (Ri is greater than or equal to 1 and less than or equal to R) in the port set indicated by the DMRS port(s).
In the embodiment of the invention, an antenna port set corresponding to each TCI state in a plurality of TCI states is determined, wherein each TCI state and the antenna port set have a corresponding relation; determining an antenna port of each antenna port set according to a first value in antenna port configuration, wherein the first value is used for indicating the antenna port of each antenna port set. Therefore, the corresponding antenna port set can be respectively determined for a plurality of TCI states, so that multi-TCI state transmission is supported, and the frequency band utilization rate of a communication system is improved.
Referring to fig. 3, fig. 3 is a structural diagram of a communication device provided in the implementation of the present invention, where the communication device may be a terminal or a network side device, as shown in fig. 3, the communication device 300 includes:
a first determining module 301, configured to determine an antenna port set corresponding to each TCI state in a plurality of TCI states, where each TCI state has a corresponding relationship with the antenna port set;
a second determining module 302, configured to determine an antenna port of each antenna port set according to a first value in an antenna port configuration, where the first value is used to indicate the antenna port of each antenna port set.
Optionally, the first value is further used to indicate an antenna port union, where the antenna port union includes antenna ports in the antenna port sets.
Optionally, frequency domain resources corresponding to the multiple TCI states do not overlap; or
Time domain resources corresponding to the TCI states are not overlapped; or
And the time domain and frequency domain resources corresponding to the TCI states are not overlapped.
Optionally, the multiple TCI states include a first TCI state and a second TCI state, where an antenna port set corresponding to the first TCI state is the antenna port union set, and an antenna port set corresponding to the second TCI state is a subset of the antenna port union set.
Optionally, each TCI state and the antenna port set have a fixed one-to-one correspondence; or
The corresponding relation between each TCI state and the antenna port set is a one-to-one corresponding relation indicated by the first value dynamic state.
Optionally, the first partial value in the antenna port configuration is used to indicate an antenna port union set, and indicate antenna ports of multiple antenna port sets, and indicate an antenna port set corresponding to the TCI state, and the second partial value in the antenna port configuration is used to indicate an antenna port set; or
The antenna port configuration comprises a plurality of values, and the plurality of values are all used for indicating an antenna port union set, indicating antenna ports of a plurality of antenna port sets, and indicating an antenna port set corresponding to a TCI state.
Optionally, the antenna port is configured to configure the following:
a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a corresponding relation between a TCI state corresponding to each value and the antenna port set; or, a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a correspondence between the TCI state and the antenna port set corresponding to a part or all of the values of the plurality of values.
It should be noted that, in this embodiment, the communication device 300 may be a communication device according to any implementation manner in the method embodiment of the present invention, and any implementation manner of the communication device in the method embodiment of the present invention may be implemented by the communication device 300 in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.
Referring to fig. 4, fig. 4 is a structural diagram of another communication device according to an embodiment of the present invention, where the communication device may be a terminal or a network side device, and as shown in fig. 4, the communication device includes: a transceiver 410, a memory 420, a processor 400, and a program stored on the memory 420 and executable on the processor 400, wherein:
the transceiver 410 or the processor 400 is configured to determine an antenna port set corresponding to each TCIstate in a plurality of TCI states, where each TCI state has a corresponding relationship with the antenna port set; and determining an antenna port of each antenna port set according to a first value in the antenna port configuration, wherein the first value is used for indicating the antenna port of each antenna port set.
The transceiver 410 may be used, among other things, to receive and transmit data under the control of the processor 400.
In FIG. 4, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 400 and memory represented by memory 420. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 410 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 400 in performing operations.
It should be noted that the memory 420 is not limited to only being on the communication device, and the memory 420 and the processor 400 may be separated in different geographical locations.
Optionally, the first value is further used to indicate an antenna port union, where the antenna port union includes antenna ports in the antenna port sets.
Optionally, frequency domain resources corresponding to the multiple TCI states do not overlap; or
Time domain resources corresponding to the TCI states are not overlapped; or
And the time domain and frequency domain resources corresponding to the TCI states are not overlapped.
Optionally, the multiple TCI states include a first TCI state and a second TCI state, where an antenna port set corresponding to the first TCI state is the antenna port union set, and an antenna port set corresponding to the second TCI state is a subset of the antenna port union set.
Optionally, each TCI state and the antenna port set have a fixed one-to-one correspondence; or
The corresponding relation between each TCI state and the antenna port set is a one-to-one corresponding relation indicated by the first value dynamic state.
Optionally, the first partial value in the antenna port configuration is used to indicate an antenna port union set, and indicate antenna ports of multiple antenna port sets, and indicate an antenna port set corresponding to the TCI state, and the second partial value in the antenna port configuration is used to indicate an antenna port set; or alternatively
The antenna port configuration comprises a plurality of values, and the plurality of values are all used for indicating an antenna port union set, indicating antenna ports of a plurality of antenna port sets, and indicating an antenna port set corresponding to a TCI state.
Optionally, the antenna port is configured to configure the following:
a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a corresponding relation between a TCI state corresponding to each value and the antenna port set; or, a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a correspondence between the TCI state and the antenna port set corresponding to a part or all of the values of the plurality of values.
It should be noted that, the communication device in this embodiment may be a communication device in any implementation manner in the method embodiment in the embodiment of the present invention, and any implementation manner of the communication device in the method embodiment in the embodiment of the present invention may be implemented by the communication device in this embodiment to achieve the same beneficial effects, and details are not described here.
The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps in the antenna port determination method provided in the embodiment of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the processing method of the information data block according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (16)
1. An antenna port determination method, comprising:
determining an antenna port set corresponding to each TCI state in a plurality of transmission configuration indication states TCI state, wherein each TCI state and the antenna port set have a corresponding relationship;
determining an antenna port of each antenna port set according to a first value in antenna port configuration, wherein the first value is used for indicating the antenna port of each antenna port set, and the first value is a value;
wherein the first value is further used to indicate an antenna port union, which includes the antenna ports in each of the antenna port sets;
the antenna port configuration is used for configuring the following:
a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a corresponding relation between a TCI state corresponding to each value and the antenna port set; or, a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a correspondence between the TCI state and the antenna port set corresponding to a part or all of the values of the plurality of values.
2. The method of claim 1, wherein frequency domain resources corresponding to the plurality of TCI states do not overlap; or
Time domain resources corresponding to the TCI states are not overlapped; or
And the time domain and frequency domain resources corresponding to the TCI states are not overlapped.
3. The method of claim 1, wherein the plurality of TCI states comprises a first TCI state and a second TCI state, the first TCI state corresponding set of antenna ports is the union set of antenna ports, and the second TCI state corresponding set of antenna ports is a subset of the union set of antenna ports.
4. The method of claim 1, wherein each TCI state has a fixed one-to-one correspondence with a set of antenna ports; or
The corresponding relation between each TCI state and the antenna port set is a one-to-one corresponding relation indicated by the first value dynamic state.
5. The method according to any of claims 1 to 4, wherein a first part of values in the antenna port configuration is used to indicate a union set of antenna ports and to indicate antenna ports of a plurality of antenna port sets and to indicate a corresponding set of antenna ports of TCI state, and a second part of values in the antenna port configuration is used to indicate a set of antenna ports; or
The antenna port configuration comprises a plurality of values, and the plurality of values are all used for indicating an antenna port union set, indicating antenna ports of a plurality of antenna port sets, and indicating an antenna port set corresponding to a TCI state.
6. A communication device, comprising:
the device comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for determining an antenna port set corresponding to each TCI state in a plurality of TCI states, and each TCI state and the antenna port set have a corresponding relation;
a second determining module, configured to determine an antenna port of each antenna port set according to a first value in an antenna port configuration, where the first value is used to indicate an antenna port of each antenna port set, and the first value is a value;
wherein the first value is further used to indicate an antenna port union, which includes the antenna ports in each of the antenna port sets;
the antenna port configuration is used for configuring the following:
a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a corresponding relation between a TCI state corresponding to each value and the antenna port set; or, a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a correspondence between the TCI state and the antenna port set corresponding to a part or all of the values of the plurality of values.
7. The communications device of claim 6, wherein frequency domain resources corresponding to the plurality of TCI states do not overlap; or
Time domain resources corresponding to the TCI states are not overlapped; or
And the time domain and frequency domain resources corresponding to the TCI states are not overlapped.
8. The communication device of claim 7, wherein the plurality of TCI states comprises a first TCI state and a second TCI state, the first TCI state corresponding set of antenna ports is the union set of antenna ports, and the second TCI state corresponding set of antenna ports is a subset of the union set of antenna ports.
9. The communications device of claim 6, wherein each TCI state has a fixed one-to-one correspondence with a set of antenna ports; or alternatively
The corresponding relation between each TCI state and the antenna port set is a one-to-one corresponding relation indicated by the first value dynamic state.
10. The communication device according to any of claims 6 to 9, wherein a first part of values in the antenna port configuration is used to indicate a union of antenna ports and to indicate antenna ports of a plurality of antenna port sets and to indicate a corresponding antenna port set of a TCI state, and a second part of values in the antenna port configuration is used to indicate an antenna port set; or alternatively
The antenna port configuration comprises a plurality of values, and the plurality of values are all used for indicating an antenna port union set, indicating antenna ports of a plurality of antenna port sets, and indicating an antenna port set corresponding to a TCI state.
11. A communication device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,
the transceiver or the processor is configured to determine an antenna port set corresponding to each TCI state in a plurality of TCI states, where each TCI state has a corresponding relationship with the antenna port set; determining antenna ports of each antenna port set according to a first value in antenna port configuration, wherein the first value is used for indicating the antenna ports of each antenna port set, and the first value is a value;
wherein the first value is further used to indicate an antenna port union, which includes the antenna ports in each of the antenna port sets;
the antenna port configuration is used for configuring the following:
a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a corresponding relation between a TCI state corresponding to each value and the antenna port set; or, a plurality of values including the first value, an antenna port union set corresponding to each value, an antenna port of a plurality of antenna port sets corresponding to each value, and a correspondence between the TCI state and the antenna port set corresponding to a part or all of the values of the plurality of values.
12. The communications device of claim 11, wherein frequency domain resources corresponding to the plurality of TCI states do not overlap; or
Time domain resources corresponding to the TCI states are not overlapped; or
And the time domain and frequency domain resources corresponding to the TCI states are not overlapped.
13. The communications device of claim 11, wherein the plurality of TCI states includes a first TCI state and a second TCI state, the first TCI state corresponding set of antenna ports is the union of antenna ports, and the second TCI state corresponding set of antenna ports is a subset of the union of antenna ports.
14. The communications device of claim 11, wherein each TCI state has a fixed one-to-one correspondence with a set of antenna ports; or
The corresponding relation between each TCI state and the antenna port set is a one-to-one corresponding relation indicated by the first value dynamic state.
15. The communication device according to any of claims 11 to 14, wherein a first part of values in the antenna port configuration is used to indicate a union of antenna ports and to indicate antenna ports of a plurality of antenna port sets and to indicate a corresponding antenna port set of a TCI state, and a second part of values in the antenna port configuration is used to indicate an antenna port set; or
The antenna port configuration comprises a plurality of values, and the plurality of values are all used for indicating an antenna port union set, indicating antenna ports of a plurality of antenna port sets, and indicating an antenna port set corresponding to a TCI state.
16. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the antenna port determination method according to any one of claims 1 to 5.
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| CN201910604781.8A CN112187320B (en) | 2019-07-05 | 2019-07-05 | Antenna port determining method and communication equipment |
| PCT/CN2020/094117 WO2021004202A1 (en) | 2019-07-05 | 2020-06-03 | Antenna port determining method and communication device |
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