CN111092707A - Method and device for determining spatial relationship information - Google Patents
Method and device for determining spatial relationship information Download PDFInfo
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- CN111092707A CN111092707A CN201910766374.7A CN201910766374A CN111092707A CN 111092707 A CN111092707 A CN 111092707A CN 201910766374 A CN201910766374 A CN 201910766374A CN 111092707 A CN111092707 A CN 111092707A
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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
- 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
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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Abstract
The application provides a method and a device for determining spatial relationship information. The method comprises the following steps: and under the condition of meeting a first preset condition, the first communication node determines the spatial relationship information of the uplink signal or the channel according to the downlink signal or the signal associated with the channel. The method and the device can reduce redundant indication of the spatial relationship information and save signaling overhead.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a method and an apparatus for determining spatial relationship information.
Background
In the existing beam management, beam selection of Downlink or Uplink channels or signals has great flexibility, and beam indications of each Physical Channel or Signal (such as a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), a Sounding Reference Signal (SRS), and a Physical Uplink Control Channel (PUCCH)) are configured independently. For example, for the beam indication of the PDCCH, the base station indicates (or activates) a Transmission Control Indication (TCI) state for the base station through an activation command, such as media access Control Element (MAC-CE) signaling, the TCI state including a class D Quasi Co-Located (QCL-Type D) downlink reference signal; for the PUCCH, the base station indicates spatial relationship information for the PUCCH through MAC-CE signaling, and the spatial relationship information comprises an uplink or downlink reference signal. However, this beam indication method may cause excessive signaling (e.g., MAC-CE signaling) overhead. In case of mutual benefit between uplink and downlink channels, the base station may configure the same downlink reference signal for a TCI state (QCL-Type D) and spatial relationship information, for example, the base station activates a TCI state for the PDCCH through a MAC-CE signaling, the TCI state includes a QCL-Type D downlink reference signal, and the base station indicates spatial relationship information with the same downlink reference signal for the PUCCH through a MAC-CE signaling, which is obviously redundant. For the problem of excessive signaling overhead caused by redundant indication spatial relationship information, no effective solution exists at present.
Disclosure of Invention
In order to solve at least one of the above technical problems, embodiments of the present application provide the following solutions.
The embodiment of the application provides a method for determining spatial relationship information, which comprises the following steps:
and under the condition of meeting a first preset condition, the first communication node determines the spatial relationship information of the uplink signal or the channel according to the downlink signal or the signal associated with the channel.
The embodiment of the application provides a method for determining spatial relationship information, which comprises the following steps:
under the condition of meeting a first preset condition, the second communication node determines spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel; wherein the downlink signal or channel is a downlink signal or channel received by the first communication node;
and the second communication node receives the uplink signal or the channel sent by the first communication node.
The embodiment of the application provides a method for determining a path loss reference signal, which comprises the following steps:
and under the condition that a second preset condition is met, the first communication node determines a path loss reference signal according to the uplink signal or the reference signal related to the CORESET with the minimum CORESET ID on the nearest time slot of the channel.
The embodiment of the application provides a device for determining spatial relationship information, which comprises:
the first determining module is configured to determine spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel under the condition that a first preset condition is met.
The embodiment of the application provides a device for determining spatial relationship information, which comprises:
the second determining module is used for determining the spatial relationship information of the uplink signal or the channel according to the downlink signal or the signal associated with the channel under the condition that the first preset condition is met; wherein the downlink signal or channel is a downlink signal or channel received by the first communication node;
and the receiving module is used for receiving the uplink signal or the channel sent by the first communication node.
The embodiment of the present application provides a device for determining a path loss reference signal, including:
and the third determining module is used for determining the path loss reference signal according to the uplink signal or the reference signal associated with the CORESET with the minimum CORESET ID in the nearest time slot of the channel under the condition that a second preset condition is met.
An embodiment of the present application provides a base station, including: a processor and a memory;
the memory is to store instructions;
the processor is configured to read the instruction to execute the second method for determining spatial relationship information.
An embodiment of the present application provides a User Equipment (UE), including: a processor and a memory;
the memory is to store instructions;
the processor is configured to read the instructions to perform the above-mentioned first method for determining spatial relationship information or the above-mentioned method for determining a pathloss reference signal.
The embodiment of the application provides a communication network, which comprises the base station and the UE.
An embodiment of the present application provides a storage medium, where the storage medium stores a computer program, and the computer program, when executed by a processor, implements any one of the methods described above.
The beam determining method provided by the embodiment of the application determines the spatial relationship information of the uplink signal or the channel according to the downlink reference signal or the signal associated with the channel, reduces the redundant indication of the spatial relationship information, and can save the signaling overhead.
Drawings
Fig. 1 is a first schematic flow chart illustrating an implementation of a method for determining spatial relationship information according to an embodiment of the present application;
fig. 2 is a schematic flow chart illustrating an implementation of a method for determining spatial relationship information according to an embodiment of the present application;
fig. 3 is a schematic flowchart illustrating an implementation of a method for determining a pathloss reference signal according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of a first embodiment of the present application;
FIG. 5 is a schematic view of a second embodiment of the present application;
FIG. 6 is a schematic view of a third embodiment of the present application;
FIG. 7 is a schematic view of a fourth embodiment of the present application;
FIG. 8 is a schematic view of an embodiment of the present application;
FIG. 9 is a schematic view of a sixth embodiment of the present application;
fig. 10 is a schematic structural diagram of an apparatus for determining spatial relationship information according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a base station according to an embodiment of the present application;
fig. 12 is a schematic structural diagram of a UE according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of a communication system according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
An embodiment of the present application provides a method for determining spatial relationship information, and as shown in fig. 1, a first implementation flow diagram of the method for determining spatial relationship information according to the embodiment of the present application is shown, including:
step S11: and under the condition of meeting a first preset condition, the first communication node determines the spatial relationship information of the uplink signal or the channel according to the downlink signal or the signal associated with the channel.
In one embodiment, the determining, by the first communication node, spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal includes:
the first communication node determines a first reference signal according to a reference signal associated with a Control Resource Set (CORESET) with a minimum Control Resource Set identifier (CORESET ID, Control Resource Set Id) on the uplink signal or the nearest time slot of the channel; wherein the first reference signal is a reference signal providing the uplink signal or a channel spatial filter.
In one embodiment, the first communication node determines a first reference signal from a quasi co-located reference signal of a first quasi co-located type associated with the CORESET;
and a corresponding relation exists between the serving cell where the CORESET is located and the serving cell where the uplink signal or channel is located.
In one embodiment, the CORESET belongs to a first CORESET group;
the uplink signal or channel belongs to a first uplink signal or channel group;
the first CORESET group and the first uplink signal or channel group have a corresponding relation.
In one embodiment, the determining, by the first communication node, spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal includes:
the first communication node determines a second reference signal according to the first type of downlink signals or the signals related to the channels; wherein the second reference signal is a reference signal providing the uplink signal or a channel spatial filter.
In one embodiment, the first type of downlink signal or channel satisfies at least one of the following characteristics:
the first type of downlink signals or channels belong to a first type of downlink signal or channel set; wherein, the downlink signals or channels in the first type of downlink signals or channels set have the same initial position;
the first type of downlink signals or channels belong to a first type of downlink signal or channel set; wherein, the downlink signals or channels in the first type of downlink signals or channels set have the same end position;
the ID of the first type downlink signal or channel is maximum;
the first type of downlink signal or channel is closest to the uplink reference signal or channel;
the aggregation level value of the first type downlink channel is maximum; the first type of downlink channel comprises a downlink control channel;
the index value of a Modulation and Coding Scheme (MCS) related to a Demodulation Reference Signal (DM-RS) of the first type of downlink channel is maximum; the first type of downlink channel comprises a downlink data channel;
the first type of downlink channel is a downlink channel corresponding to a hybrid automatic Repeat Request (HARQ) bit group at a predetermined position in a HARQ-ACK bit group set included in the uplink channel; wherein one of the HARQ-ACK bit groups corresponds to one of the downlink channels;
the first type of downlink channel comprises a first signaling; wherein the first signaling is used for activating the uplink signal or channel;
the first type of downlink channel comprises a second signaling; wherein the second signaling is used for scheduling the uplink signal or channel.
In one embodiment, the determining, by the first communication node, spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal includes:
and the first communication node determines a path loss reference signal according to the uplink signal or a reference signal associated with a control resource set (CORESET) with the smallest control resource set identification (CORESET ID) on the nearest time slot of the channel.
In one embodiment, the first communication node determines a path loss reference signal from a quasi co-located reference signal of a first quasi co-located type associated with the CORESET.
In one embodiment, the downlink signal or the channel-associated signal satisfies at least one of the following characteristics:
the signal associated with the downlink signal comprises at least one of the following: the downlink signal and a quasi-co-located reference signal of the downlink signal;
the downlink channel associated signal comprises at least one of the following: and the DM-RS of the downlink channel and the quasi co-location reference signal of the DM-RS of the downlink channel.
In one embodiment, the quasi co-located reference signal is a source reference signal configured in a first quasi co-located type in which a transmission configuration indicated by the second communication node for receiving the downlink signal or channel indicates a TCI status.
In one embodiment, the first preset condition includes at least one of:
the uplink signal or channel is not configured with spatial relationship information.
The first communication node receives third signaling information, where the third signaling information includes indication information indicating that the spatial relationship information of the uplink signal or channel is determined according to the signal associated with the downlink signal or channel.
An embodiment of the present application further provides a method for determining spatial relationship information, and fig. 2 is a schematic flow chart of a second implementation of the method for determining spatial relationship information according to the embodiment of the present application, where the method includes:
step S21: under the condition of meeting a first preset condition, the second communication node determines spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel; wherein the downlink signal or channel is a downlink signal or channel received by the first communication node;
step S22: and the second communication node receives the uplink signal or the channel sent by the first communication node.
In one embodiment, the determining, by the second communication node, spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal includes:
the second communication node determines a third reference signal according to the reference signal associated with a control resource set (CORESET) with the smallest control resource set identification (CORESET ID) on the uplink signal or the nearest time slot of the channel; wherein the third reference signal is a reference signal providing the uplink signal or a channel spatial filter.
In one embodiment, the second communication node determines a third reference signal according to a quasi-co-located reference signal of a first quasi-co-located type associated with the CORESET;
and a corresponding relation exists between the serving cell where the CORESET is located and the serving cell where the uplink signal or channel is located.
In one embodiment, the CORESET belongs to a first CORESET group;
the uplink signal or channel belongs to a first uplink signal or channel group;
the first CORESET group and the first uplink signal or channel group have a corresponding relation.
In one embodiment, the determining, by the second communication node, spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal includes:
the second communication node determines a fourth reference signal according to the first type of downlink signals or the signals related to the channels; wherein the fourth reference signal is a reference signal providing the uplink signal or a channel spatial filter.
In one embodiment, the first type of downlink signal or channel satisfies at least one of the following characteristics:
the first type of downlink signals or channels belong to a first type of downlink signal or channel set; wherein, the downlink signals or channels in the first type of downlink signals or channels set have the same initial position;
the first type of downlink signals or channels belong to a first type of downlink signal or channel set; wherein, the downlink signals or channels in the first type of downlink signals or channels set have the same end position;
the ID of the first type downlink signal or channel is maximum;
the first type of downlink signal or channel is closest to the uplink reference signal or channel;
the aggregation level value of the first type downlink channel is maximum; the first type of downlink channel comprises a downlink control channel;
the MCS index value associated with the DM-RS of the first type downlink channel is maximum; the first type of downlink channel comprises a downlink data channel;
the first type of downlink channel is a downlink channel corresponding to a HARQ-ACK bit group at a preset position in a HARQ-ACK bit group set included in the uplink channel; wherein one of the HARQ-ACK bit groups corresponds to one of the downlink channels;
the first type of downlink channel comprises a first signaling; wherein the first signaling is used for activating the uplink signal or channel;
the first type of downlink channel comprises a second signaling; wherein the second signaling is used for scheduling the uplink signal or channel.
In one embodiment, the downlink signal or the channel-associated signal satisfies at least one of the following characteristics:
the signal associated with the downlink signal comprises at least one of the following: the downlink signal and a quasi-co-located reference signal of the downlink signal;
the downlink channel associated signal comprises at least one of the following: and the DM-RS of the downlink channel and the quasi co-location reference signal of the DM-RS of the downlink channel.
In one embodiment, the quasi co-located reference signal is a source reference signal configured in a first quasi co-located type of TCI status indicated by the second communication node for receiving the downlink signal or channel.
In one embodiment, the first preset condition includes at least one of:
the uplink signal or channel is not configured with spatial relationship information;
the first communication node receives third signaling information, where the third signaling information includes indication information indicating that the spatial relationship information of the uplink signal or channel is determined according to the signal associated with the downlink signal or channel.
An embodiment of the present application further provides a method for determining a pathloss reference signal, and fig. 3 is a schematic flow chart of an implementation of the method for determining a pathloss reference signal according to the embodiment of the present application, where the method includes:
step S31: and under the condition that a second preset condition is met, the first communication node determines a path loss reference signal according to the uplink signal or the reference signal related to the CORESET with the minimum CORESET ID on the nearest time slot of the channel.
In one embodiment, the first communication node determines the path loss reference signal from a quasi co-located reference signal of a first quasi co-located type associated with the CORESET;
and a corresponding relation exists between the serving cell where the CORESET is located and the serving cell where the uplink signal or channel is located.
In one embodiment, the CORESET belongs to a second CORESET;
the uplink signal or channel belongs to a second uplink signal or channel group;
and the second CORESET group and the second uplink signal or channel group have a corresponding relation.
In one embodiment, the second preset condition includes:
the uplink signal or channel is not configured with spatial relationship information;
the first communication node receives fourth signaling information, where the fourth signaling information includes indication information indicating that the spatial relationship information of the uplink signal or channel is determined according to the signal associated with the downlink signal or channel.
The first communication node mentioned in the present application may refer to a UE, and the second communication node may refer to a base station;
the first QCL Type mentioned in the present application may be QCL-Type D, and specifically, QCL-Type D indicates that the target downlink signal and the channel have the same receiving spatial parameters as the source reference signal;
the spatial relationship information referred to in this application refers to a spatial filter. In addition, in the following embodiments ten to eleven, the spatial relationship information includes a path loss reference signal.
Embodiments one to nine of the present application provide a method for determining PUCCH spatial relationship information, and the method is also applicable to determination of SRS spatial relationship information.
The first embodiment is as follows: method for determining PUCCH spatial relationship information
Given a time instant (slot n), assume that the UE has PUCCH to transmit on serving cell 1; CORESET1 and CORESET2 are arranged on slot n; wherein, the CORESET ID corresponding to CORESET1 is 1, and the CORESETID corresponding to CORESET2 is 2; the source reference signals configured in QCL-Type D of the TCI states respectively indicated by the base station for the UE to receive the CORESET1 and the CORESET2 are CSI-RS1 and CSI-RS 2 respectively, in other words, the CORESET1 and the CSI-RS1 have the same receiving beam, and the CORESET2 and the CSI-RS 2 have the same receiving beam; if the first preset condition is met, the UE can determine a first reference signal according to a source reference signal configured in QCL-Type D of the TCI state of CORESET with the smallest control resource set identification CORESET ID on the latest slot of the PUCCH; wherein, the first reference signal refers to a reference signal providing a spatial filter for the PUCCH; the UE may determine the first reference signal from CSI-RS1, i.e., the transmission beam of the PUCCH is the same as the reception beam of CSI-RS1, as shown in fig. 4.
Further, the first preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information which indicates that the spatial relationship information of an uplink signal or a channel is determined according to a downlink signal or a signal associated with the channel.
Example two: method for determining PUCCH spatial relationship information
Suppose that the UE receives PDCCH1, PDCCH 2, and PDCCH 3 sent by the base station on serving cell 1, serving cell 2, and serving cell 3, respectively; wherein, the starting positions or the ending positions of PDCCH1, PDCCH 2 and PDCCH 3 on the time domain are the same; the base station receives source reference signals configured in QCL-Type D of TCI states indicated by PDCCH1, PDCCH 2 and PDCCH 3 for UE, wherein the source reference signals are CSI-RS1, CSI-RS 2 and CSI-RS3 respectively; at a given moment, the starting position of a PUCCH1 to be transmitted on a serving cell 1 by the UE is behind the starting positions of a PDCCH1, a PDCCH 2 and a PDCCH 3; if the first preset condition is met, the UE may determine a first reference signal according to a source reference signal configured in QCL-Type D of the TCI status of the first Type of PDCCH; wherein, the first reference signal refers to a reference signal providing a spatial filter for the PUCCH 1;
further, the first preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information determined by indicating the spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel;
further, the PDCCH of the first type satisfies the following characteristics:
the first type PDCCH belongs to a first type PDCCH set; the first type PDCCH in the first type PDCCH set has the same time domain starting or ending position;
the cell identification ID corresponding to the first type PDCCH in the first type PDCCH set is maximum;
therefore, in this embodiment, PDCCH1, PDCCH 2 and PDCCH 3 all belong to a first type PDCCH set, and the first type PDCCH is PDCCH 3; the UE may determine the first reference signal according to the source reference signal (CSI-RS3) configured in QCL-Type D of the TCI state of PDCCH 3, that is, the transmission beam of the PUCCH1 is the same as the reception beam of CSI-RS3, as shown in fig. 5.
In this embodiment, the PDCCH, the first type PDCCH, and the first type PDCCH set may be replaced by a PDSCH, a first type PDSCH, and a first type PDSCH set.
Example three: method for determining PUCCH spatial relationship information
Suppose that the UE receives PDCCH1, PDCCH 2, and PDCCH 3 sent by the base station on serving cell 1, serving cell 2, and serving cell 3, respectively; the base station receives source reference signals configured in QCL-Type D of TCI states indicated by PDCCH1, PDCCH 2 and PDCCH 3 for the UE, wherein the source reference signals are CSI-RS1, CSI-RS 2 and CSI-RS3 respectively; at a given moment, a PUCCH1 to be transmitted on a serving cell 1 is provided by the UE, and the starting position of the time domain is behind the starting positions of PDCCH1, PDCCH 2 and PDCCH 3; compared with PDCCH1 and PDCCH 2, the position of PDCCH 3 in the time domain is closest to the starting position of PUCCH 1; if the first preset condition is met, the UE may determine a first reference signal according to a source reference signal configured in QCL-Type D of the TCI status of the first Type of PDCCH; wherein, the first reference signal refers to a reference signal providing a spatial filter for the PUCCH 1;
further, the first preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information determined by indicating the spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel;
further, the first type PDCCH may be a PDCCH closest to PUCCH 1;
therefore, the UE may determine the first reference signal according to the source reference signal (CSI-RS3) configured in QCL-Type D of the TCI state of PDCCH 3, that is, the transmission beam of the PUCCH1 is the same as the reception beam of CSI-RS3, as shown in fig. 6.
In this embodiment, the PDCCH may be replaced with PDSCH.
Example four: method for determining PUCCH spatial relationship information
Suppose that the UE receives PDCCH1, PDCCH 2, and PDCCH 3 sent by the base station on serving cell 1, serving cell 2, and serving cell 3, respectively; wherein, the starting positions or the ending positions of PDCCH1, PDCCH 2 and PDCCH 3 on the time domain are the same; the aggregation level of PDCCH1 is 2, the aggregation level of PDCCH 2 is 4, the aggregation level of PDCCH 3 is 6, and an aggregation level N means that the CORESET corresponding to the PDCCH is composed of N consecutive Control Channel Elements (CCEs); the base station receives source reference signals configured in QCL-Type D of TCI states indicated by PDCCH1, PDCCH 2 and PDCCH 3 for UE, wherein the source reference signals are CSI-RS1, CSI-RS 2 and CSI-RS3 respectively; at a given moment, a PUCCH to be transmitted on a serving cell 1 is provided by the UE, and the time domain starting position of the PUCCH is behind the starting positions of PDCCH1, PDCCH 2 and PDCCH 3; if the first preset condition is met, the UE may determine a first reference signal according to a source reference signal configured in QCL-Type D of the TCI status of the first Type of PDCCH; wherein, the first reference signal refers to a reference signal providing a spatial filter for the PUCCH 1;
further, the first preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information determined by indicating the spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel;
further, the PDCCH of the first type satisfies the following characteristics:
the first type PDCCH belongs to a first type PDCCH set; the first type PDCCH in the first type PDCCH set has the same time domain starting or ending position;
the aggregation level of a first type PDCCH in the first type PDCCH set is maximum;
therefore, in this embodiment, PDCCH1, PDCCH 2 and PDCCH 3 all belong to a first type PDCCH set, and the first type PDCCH is PDCCH 3; the UE may determine the first reference signal according to the source reference signal (CSI-RS3) configured in QCL-Type D of the TCI state of PDCCH 3, that is, the transmission beam of the PUCCH1 is the same as the reception beam of CSI-RS3, as shown in fig. 7.
Example five: method for determining PUCCH spatial relationship information
Suppose that the UE receives PDSCH1, PDSCH 2, and PDSCH3 sent by the base station on serving cell 1, serving cell 2, and serving cell 3, respectively; the code and modulation scheme MCS index corresponding to the demodulation reference signal DM-RS1 of the PDSCH1 is 1, the code and modulation scheme MCS index corresponding to the demodulation reference signal DM-RS 2 of the PDSCH 2 is 2, and the code and modulation scheme MCS index corresponding to the demodulation reference signal DM-RS 3 of the PDSCH3 is 3; the base station receives source reference signals configured in QCL-Type D of TCI states indicated by demodulation reference signals DM-RS1, DM-RS 2 and DM-RS 3 of PDSCH1 and PDSCH3 for UE, wherein the source reference signals are CSI-RS1, CSI-RS 2 and CSI-RS3 respectively; at a given moment, the UE has PUCCH1 to be transmitted on a serving cell 1, the time domain starting position of the PUCCH1 is behind the starting positions of PDSCH1, PDSCH 2 and PDSCH3, and the PUCCH1 is the same as the PDSCH1, PDSCH 2 and PDSCH3 ending positions; if the first preset condition is met, the UE may obtain a first reference signal according to a source reference signal configured in QCL-Type D of the TCI state of demodulation reference signals DM-RS of the first Type PDSCH; wherein, the first reference signal refers to a reference signal providing a spatial filter for the PUCCH 1;
further, the first preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information determined by indicating the spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel;
further, the first type PDSCH satisfies the following characteristics:
the first type PDSCH belongs to a first type PDSCH set; the time domain distances between the first type PDSCH in the first type PDSCH set and the PUCCH1 are the same; the time domain distance refers to the time domain symbol length between the time domain end position of the first type PDSCH and the time domain starting position of the PUCCH 1;
the MCS index value corresponding to the demodulation reference signal DM-RS of the first type PDSCH in the first type PDSCH set is maximum;
therefore, in this embodiment, PDSCH1, PDSCH 2 and PDSCH3 all belong to the set of PDSCH of the first type, and PDSCH of the first type is PDSCH 3; the UE may determine the first reference signal according to the source reference signal (CSI-RS3) configured in QCL-Type D of the TCI state of the PDSCH3, that is, the transmission beam of the PUCCH1 is the same as the reception beam of the CSI-RS3, as shown in fig. 8.
Example six: method for determining PUCCH spatial relationship information
Suppose that the UE receives PDSCH1, PDSCH 2, and PDSCH3 sent by the base station on serving cell 1, serving cell 2, and serving cell 3, respectively; the base station receives source reference signals configured in QCL-Type D of TCI states indicated by DM-RS1 of PDSCH1, DM-RS 2 of PDSCH 2 and DM-RS 3 of PDSCH3 for UE, wherein the source reference signals are CSI-RS1, CSI-RS 2 and CSI-RS3 respectively; at a given moment, the UE is provided with a PUCCH1 to be transmitted on a serving cell 1; the PUCCH1 includes HARQ-ACK information, where the HARQ-ACK information is used to indicate whether the UE requires the base station to retransmit data, for example, the UE requests the base station to retransmit data by sending the HARQ-ACK information in case of decoding failure; in this embodiment, the HARQ-ACK information (or the HARQ-ACK bit group set) includes 3 HARQ-ACK bit groups, which are, in order from time domain, HARQ-ACK bit group 1, HARQ-ACK bit group 2, and HARQ-ACK bit group 3; wherein, the HARQ-ACK bit group 1 is used to indicate whether the PDSCH1 is retransmitted (i.e. the HARQ-ACK bit group 1 corresponds to the PDSCH 1), the HARQ-ACK bit group 2 is used to indicate whether the PDSCH 2 is retransmitted (i.e. the HARQ-ACK bit group 2 corresponds to the PDSCH 2), and the HARQ-ACK bit group 3 is used to indicate whether the PDSCH3 is retransmitted (i.e. the HARQ-ACK bit group 3 corresponds to the PDSCH 3); if the first preset condition is met, the UE may determine a first reference signal according to a source reference signal configured in QCL-Type D of the TCI state of the DM-RS of the first Type PDSCH; wherein the first reference signal refers to a reference signal providing a spatial filter for the PUCCH 1;
further, the first preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information determined by indicating the spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel;
further, the first-type PDSCH is a downlink channel corresponding to an HARQ-ACK bit group at a preset position in the HARQ-ACK bit group set; further, the predetermined position may be a rearmost HARQ-ACK bit group of the time domain position;
thus, in this embodiment, the first type PDSCH is PDSCH 3; the UE may determine the first reference signal according to the source reference signal (CSI-RS3) configured in QCL-Type D of the TCI state of DM-RS 3 of PDSCH3, that is, the transmission beam of the PUCCH1 is the same as the reception beam of CSI-RS3, as shown in fig. 9.
Example seven: method for determining PUCCH spatial relationship information
At a given moment, the UE is assumed to receive a PDCCH1 sent by a base station on a serving cell 1; wherein, a second signaling information (such as downlink control information DCI) is carried on PDCCH1, where the second signaling information is used to schedule a PUCCH1 for transmission; a source reference signal configured in QCL-Type D of a TCI state indicated by PDCCH1 and received by a base station for UE is CSI-RS 1; if the first preset condition is met, the UE may determine a first reference signal according to a source reference signal configured in QCL-Type D of the TCI status of the first Type of PDCCH; wherein, the first reference signal refers to a reference signal providing a spatial filter for the PUCCH 1;
further, the first preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information determined by indicating the spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel;
further, the first type PDCCH includes second signaling information, where the second signaling is used to schedule PUCCH 1:
thus, in this embodiment, the first type PDCCH is PDCCH 1; the UE may determine the first reference signal according to the source reference signal (CSI-RS 1) configured in QCL-Type D of the TCI state of PDCCH1, i.e., the transmission beam of PUCCH1 is the same as the reception beam of CSI-RS 1.
Example eight: method for determining PUCCH spatial relationship information
At a given moment, suppose that a UE receives a PDSCH1 sent by a base station on a serving cell 1; wherein, a third signaling information (such as MAC-CE signaling) is carried on the PDSCH1, wherein the third signaling information is used to activate a (semi-persistent) PUCCH1 transmission; a base station receives a source reference signal configured in QCL-Type D of TCI state indicated by DM-RS1 of PDSCH1 for UE, wherein the source reference signal is CSI-RS 1; if the first preset condition is satisfied, the UE may determine a first reference signal according to a source reference signal configured in QCL-Type D of the TCI state of the first Type of PDSCH; wherein, the first reference signal refers to a reference signal providing a spatial filter for the PUCCH 1;
further, the first preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information determined by indicating the spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel;
further, the first type PDSCH includes third signaling information, where the third signaling is used to activate PUCCH 1;
thus, in this embodiment, the first type PDSCH is PDSCH 1; the UE may determine the first reference signal according to the source reference signal (CSI-RS 1) configured in QCL-Type D of the TCI state of DM-RS1 of PDSCH1, that is, the transmission beam of the PUCCH1 is the same as the reception beam of CSI-RS 1.
Example nine: method for determining PUCCH spatial relationship information
Suppose a UE is configured with 2 CORESET groups, i.e., CORESET group 0, CORESET group 1; the DCI located on the CORESET group 0 is used to schedule the PUCCH group 0 (i.e., the CORESET group 0 corresponds to the PUCCH group 0), and the DCI located on the CORESET group 1 is used to schedule the PUCCH group 1 (i.e., the CORESET group 1 corresponds to the PUCCH group 1); at a given time (slot n), a PUCCH1 and a PUCCH 2 to be transmitted on a serving cell 1 and a serving cell 2 are assumed to be respectively transmitted by a UE, wherein the PUCCH1 belongs to a PUCCH group 0, and the PUCCH 2 belongs to a PUCCH group 1; on slot n there are CORESET 1-1, CORESET1-2, CORESET 2-1, CORESET 2-2; wherein, CORESET ID corresponding to CORESET 1-1 and CORESET 2-1 is 1, CORESET ID corresponding to CORESET1-2 and CORESET2-2 is 2, then CORESET 1-1 and CORESET1-2 belong to CORESET group 0, and CORESET 2-1 and CORESET2-2 belong to CORESET group 1; the base station receives source reference signals configured in QCL-Type D of TCI states respectively indicated by CORESET 1-1, CORESET1-2, CORESET 2-1 and CORESET2-2 for UE, wherein the source reference signals are CSI-RS 1-1, CSI-RS 1-2, CSI-RS 2-1 and CSI-RS 2-2; if the first preset condition is met, the UE can determine a first reference signal according to a source reference signal configured in QCL-Type D of the TCI state of CORESET with the smallest control resource set identification CORESET ID on the latest slot of the PUCCH; wherein, the first reference signal refers to a reference signal providing a spatial filter for the PUCCH;
further, the first preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information determined by indicating the spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel;
further, the PUCCH belongs to a first PUCCH group; CORESET belongs to the first CORESET group; the first PUCCH group and the first CORESET group have a corresponding relation;
accordingly, the UE may determine the first reference signal of PUCCH1 according to the source reference signal (CSI-RS 1-1) configured in QCL-Type D of the TCI state of CORESET 1-1; namely PUCCH1 and CSI-RS 1-1 have the same spatial filter; the UE may determine a first reference signal of PUCCH 2 according to a source reference signal (CSI-RS 2-1) configured in QCL-Type D of the TCI state of CORESET 2-1; namely, PUCCH 2 has the same spatial filter as CSI-RS 2-1.
Example ten: PUCCH path loss reference signal determination method
Given a time instant (slot n), assume that the UE has PUCCH to transmit on serving cell 1; CORESET1 and CORESET2 are arranged on slot n; wherein, the CORESET ID corresponding to CORESET1 is 1, and the CORESETID corresponding to CORESET2 is 2; the source reference signals configured in QCL-Type D of the TCI states respectively indicated by the base station for the UE to receive the CORESET1 and the CORESET2 are CSI-RS1 and CSI-RS 2 respectively, in other words, the CORESET1 and the CSI-RS1 have the same receiving beam, and the CORESET2 and the CSI-RS 2 have the same receiving beam; if the second preset condition is met, the UE may determine a path loss reference signal according to a source reference signal configured in QCL-Type D of the TCI state of the CORESET having the smallest control resource set identifier CORESET ID on the latest slot of the PUCCH; wherein the UE calculates the path loss of the PUCCH by using the path loss reference signal; the UE may determine the path loss reference signal according to CSI-RS1, that is, the path loss reference signal of the PUCCH is CSI-RS 1:
further, the second preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information which indicates that the spatial relationship information of an uplink signal or a channel is determined according to a downlink signal or a signal associated with the channel.
Example eleven: PUCCH path loss reference signal determination method
Suppose a UE is configured with 2 CORESET groups, i.e., CORESET group 0, CORESET group 1; the DCI located on the CORESET group 0 is used to schedule the PUCCH group 0 (i.e., the CORESET group 0 corresponds to the PUCCH group 0), and the DCI located on the CORESET group 1 is used to schedule the PUCCH group 1 (i.e., the CORESET group 1 corresponds to the PUCCH group 1); at a given time (slot n), a PUCCH1 and a PUCCH 2 to be transmitted on a serving cell 1 and a serving cell 2 are assumed to be respectively transmitted by a UE, wherein the PUCCH1 belongs to a PUCCH group 0, and the PUCCH 2 belongs to a PUCCH group 1; on slot n there are CORESET 1-1, CORESET1-2, CORESET 2-1, CORESET 2-2; wherein, CORESET ID corresponding to CORESET 1-1 and CORESET 2-1 is 1, CORESET ID corresponding to CORESET1-2 and CORESET2-2 is 2, then CORESET 1-1 and CORESET1-2 belong to CORESET group 0, and CORESET 2-1 and CORESET2-2 belong to CORESET group 1; the base station receives source reference signals configured in QCL-Type D of TCI states respectively indicated by CORESET 1-1, CORESET1-2, CORESET 2-1 and CORESET2-2 for UE, wherein the source reference signals are CSI-RS 1-1, CSI-RS 1-2, CSI-RS 2-1 and CSI-RS 2-2; if the second preset condition is met, the UE may determine a path loss reference signal according to a source reference signal configured in QCL-Type D of the TCI state of the CORESET having the smallest control resource set identifier CORESET ID on the latest slot of the PUCCH;
further, the second preset condition includes at least one of:
the PUCCH is not configured with spatial relation information;
the UE receives first signaling information, wherein the first signaling information comprises indication information determined by indicating the spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel;
further, the PUCCH belongs to a first PUCCH group; CORESET belongs to the first CORESET group; the first PUCCH group and the first CORESET group have a corresponding relation;
therefore, the UE may determine the path loss reference signal of PUCCH1 according to the source reference signal (CSI-RS 1-1) configured in QCL-Type D of the TCI state of CORESET 1-1; the UE may determine the path loss reference signal of PUCCH 2 from the source reference signal (CSI-RS 2-1) configured in QCL-Type D of the TCI state of CORESET 2-1.
The embodiment of the present application further provides a device for determining spatial relationship information, which can be applied to a first communication node, and includes:
the first determining module is configured to determine spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel under the condition that a first preset condition is met.
An embodiment of the present application provides another apparatus for determining spatial relationship information, which may be applied to a second communication node, where fig. 10 is a schematic structural diagram of the apparatus for determining spatial relationship information according to the embodiment of the present application, and includes:
a second determining module 1001, configured to determine spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel when a first preset condition is met; wherein the downlink signal or channel is a downlink signal or channel received by the first communication node;
a receiving module 1002, configured to receive an uplink signal or a channel sent by the first communication node.
The embodiment of the present application provides a device for determining a path loss reference signal, which can be applied to a first communication node, and includes:
and the third determining module is used for determining the path loss reference signal according to the uplink signal or the reference signal associated with the CORESET with the minimum CORESET ID in the nearest time slot of the channel under the condition that a second preset condition is met.
The functions of each module in each apparatus in the embodiment of the present application may refer to the corresponding description in the above method embodiment, and are not described herein again.
Fig. 11 is a schematic structural diagram of a base station according to an embodiment of the present application, and as shown in fig. 11, a base station 110 according to an embodiment of the present application includes: a memory 1103 and a processor 1104. The base station 110 may also include an interface 1101 and a bus 1102. The interface 1101 and the memory 1103 are connected to the processor 1104 by a bus 1202. The memory 1103 is used to store instructions. The processor 1104 is configured to read the instruction to execute the above technical solution applied to the embodiment of the method of the base station, which achieves similar principles and technical effects and is not described herein again.
Fig. 12 is a schematic structural diagram of a UE according to an embodiment of the present application, and as shown in fig. 12, a UE120 according to an embodiment of the present application includes: a memory 1203 and a processor 1204. The UE120 may also include an interface 1201 and a bus 1202. The interface 1201 and the memory 1203 are connected to the processor 1204 through the bus 1202. The memory 1203 is used to store instructions. The processor 1204 is configured to read the instruction to execute the technical solution of the above method embodiment applied to the UE, which has similar implementation principles and technical effects and is not described herein again.
Fig. 13 is a schematic structural diagram of a communication system according to an embodiment of the present application, where the communication system includes the base station 110 and the UE 120.
The present application provides a storage medium storing a computer program which, when executed by a processor, implements the method in the above embodiments.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.
Claims (31)
1. A method for determining spatial relationship information, comprising:
and under the condition of meeting a first preset condition, the first communication node determines the spatial relationship information of the uplink signal or the channel according to the downlink signal or the signal associated with the channel.
2. The method of claim 1, wherein the first communication node determines spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal, and comprises:
the first communication node determines a first reference signal according to a reference signal associated with a control resource set (CORESET) with a minimum control resource set identification (CORESETID) on the uplink signal or the nearest time slot of the channel; wherein the first reference signal is a reference signal providing the uplink signal or a channel spatial filter.
3. The method of claim 2,
the first communication node determines a first reference signal according to a quasi-co-located reference signal of a first quasi-co-located type associated with the CORESET;
and a corresponding relation exists between the serving cell where the CORESET is located and the serving cell where the uplink signal or channel is located.
4. The method of claim 2,
the CORESET belongs to a first CORESET group;
the uplink signal or channel belongs to a first uplink signal or channel group;
the first CORESET group and the first uplink signal or channel group have a corresponding relation.
5. The method of claim 1, wherein the first communication node determines spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal, and comprises:
the first communication node determines a second reference signal according to the first type of downlink signals or the signals related to the channels; wherein the second reference signal is a reference signal providing the uplink signal or a channel spatial filter.
6. The method of claim 5, wherein the first type of downlink signals or channels satisfy at least one of the following characteristics:
the first type of downlink signals or channels belong to a first type of downlink signal or channel set; wherein, the downlink signals or channels in the first type of downlink signals or channels set have the same initial position;
the first type of downlink signals or channels belong to a first type of downlink signal or channel set; wherein, the downlink signals or channels in the first type of downlink signals or channels set have the same end position;
the ID of the first type downlink signal or channel is maximum;
the first type of downlink signal or channel is closest to the uplink reference signal or channel;
the aggregation level value of the first type downlink channel is maximum; the first type of downlink channel comprises a downlink control channel;
the modulation coding mode MCS index value associated with the demodulation reference signal DM-RS of the first type of downlink channel is maximum; the first type of downlink channel comprises a downlink data channel;
the first type of downlink channel is a downlink channel corresponding to a HARQ-ACK bit group at a preset position in a hybrid automatic repeat request HARQ-ACK bit group set included in the uplink channel; wherein one of the HARQ-ACK bit groups corresponds to one of the downlink channels;
the first type of downlink channel comprises a first signaling; wherein the first signaling is used for activating the uplink signal or channel;
the first type of downlink channel comprises a second signaling; wherein the second signaling is used for scheduling the uplink signal or channel.
7. The method of claim 1, wherein the first communication node determines spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal, and comprises:
and the first communication node determines a path loss reference signal according to the uplink signal or a reference signal associated with a control resource set (CORESET) with the smallest control resource set identification (CORESET ID) on the nearest time slot of the channel.
8. The method of claim 7,
and the first communication node determines a path loss reference signal according to the quasi-co-located reference signal of the first quasi-co-located type associated with the CORESET.
9. The method according to any one of claims 1 to 8, wherein the downlink signal or the channel-associated signal satisfies at least one of the following characteristics:
the signal associated with the downlink signal comprises at least one of the following: the downlink signal and a quasi-co-located reference signal of the downlink signal;
the downlink channel associated signal comprises at least one of the following: and the DM-RS of the downlink channel and the quasi co-location reference signal of the DM-RS of the downlink channel.
10. The method according to any one of claims 3, 8, 9,
the quasi-co-located reference signal is a source reference signal configured in a first quasi-co-located type of a transmission configuration indication TCI state indicated by the second communication node for receiving the downlink signal or channel.
11. The method of claim 1, wherein the first preset condition comprises at least one of:
the uplink signal or channel is not configured with spatial relationship information.
The first communication node receives third signaling information, where the third signaling information includes indication information indicating that the spatial relationship information of the uplink signal or channel is determined according to the signal associated with the downlink signal or channel.
12. A method for determining spatial relationship information, comprising:
under the condition of meeting a first preset condition, the second communication node determines spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel; wherein the downlink signal or channel is a downlink signal or channel received by the first communication node;
and the second communication node receives the uplink signal or the channel sent by the first communication node.
13. The method of claim 12, wherein the second communication node determines spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal, comprising:
the second communication node determines a third reference signal according to the reference signal associated with a control resource set (CORESET) with the smallest control resource set identification (CORESET ID) on the uplink signal or the nearest time slot of the channel; wherein the third reference signal is a reference signal providing the uplink signal or a channel spatial filter.
14. The method of claim 13,
the second communication node determines a third reference signal according to the quasi co-located reference signal of the first quasi co-located type associated with the CORESET;
and a corresponding relation exists between the serving cell where the CORESET is located and the serving cell where the uplink signal or channel is located.
15. The method of claim 13, comprising:
the CORESET belongs to a first CORESET group;
the uplink signal or channel belongs to a first uplink signal or channel group;
the first CORESET group and the first uplink signal or channel group have a corresponding relation.
16. The method of claim 12, wherein the second communication node determines spatial relationship information of an uplink signal or channel according to a downlink signal or a channel-associated signal, comprising:
the second communication node determines a fourth reference signal according to the first type of downlink signals or the signals related to the channels; wherein the fourth reference signal is a reference signal providing the uplink signal or a channel spatial filter.
17. The method of claim 16, wherein the first type of downlink signals or channels satisfy at least one of the following characteristics:
the first type of downlink signals or channels belong to a first type of downlink signal or channel set; wherein, the downlink signals or channels in the first type of downlink signals or channels set have the same initial position;
the first type of downlink signals or channels belong to a first type of downlink signal or channel set; wherein, the downlink signals or channels in the first type of downlink signals or channels set have the same end position;
the ID of the first type downlink signal or channel is maximum;
the first type of downlink signal or channel is closest to the uplink reference signal or channel;
the aggregation level value of the first type downlink channel is maximum; the first type of downlink channel comprises a downlink control channel;
the MCS index value associated with the DM-RS of the first type downlink channel is maximum; the first type of downlink channel comprises a downlink data channel;
the first type of downlink channel is a downlink channel corresponding to a HARQ-ACK bit group at a preset position in a HARQ-ACK bit group set included in the uplink channel; wherein one of the HARQ-ACK bit groups corresponds to one of the downlink channels;
the first type of downlink channel comprises a first signaling; wherein the first signaling is used for activating the uplink signal or channel;
the first type of downlink channel comprises a second signaling; wherein the second signaling is used for scheduling the uplink signal or channel.
18. The method according to any one of claims 12 to 17, wherein the downlink signal or the channel-associated signal satisfies at least one of the following characteristics:
the signal associated with the downlink signal comprises at least one of the following: the downlink signal and a quasi-co-located reference signal of the downlink signal;
the downlink channel associated signal comprises at least one of the following: and the DM-RS of the downlink channel and the quasi co-location reference signal of the DM-RS of the downlink channel.
19. The method according to any one of claims 14 and 18,
the quasi-co-located reference signal is a source reference signal configured in a first quasi-co-located type of a TCI state indicated by the second communication node for receiving the downlink signal or channel.
20. The method of claim 12, wherein the first preset condition comprises at least one of:
the uplink signal or channel is not configured with spatial relationship information;
the first communication node receives third signaling information, where the third signaling information includes indication information indicating that the spatial relationship information of the uplink signal or channel is determined according to the signal associated with the downlink signal or channel.
21. A method for determining a path loss reference signal, comprising:
and under the condition that a second preset condition is met, the first communication node determines a path loss reference signal according to the uplink signal or the reference signal related to the CORESET with the minimum CORESETID at the nearest time slot of the channel.
22. The method of claim 21,
the first communication node determines the path loss reference signal according to a quasi-co-location reference signal of a first quasi-co-location type associated with the CORESET;
and a corresponding relation exists between the serving cell where the CORESET is located and the serving cell where the uplink signal or channel is located.
23. The method of claim 21, comprising:
the CORESET belongs to a second CORESET group;
the uplink signal or channel belongs to a second uplink signal or channel group;
and the second CORESET group and the second uplink signal or channel group have a corresponding relation.
24. The method according to claim 21, wherein the second preset condition comprises:
the uplink signal or channel is not configured with spatial relationship information;
the first communication node receives fourth signaling information, where the fourth signaling information includes indication information indicating that the spatial relationship information of the uplink signal or channel is determined according to the signal associated with the downlink signal or channel.
25. An apparatus for determining spatial relationship information, comprising:
the first determining module is configured to determine spatial relationship information of an uplink signal or a channel according to a downlink signal or a signal associated with the channel under the condition that a first preset condition is met.
26. An apparatus for determining spatial relationship information, comprising:
the second determining module is used for determining the spatial relationship information of the uplink signal or the channel according to the downlink signal or the signal associated with the channel under the condition that the first preset condition is met; wherein the downlink signal or channel is a downlink signal or channel received by the first communication node;
and the receiving module is used for receiving the uplink signal or the channel sent by the first communication node.
27. An apparatus for determining a path loss reference signal, comprising:
and the third determining module is used for determining the path loss reference signal according to the uplink signal or the reference signal associated with the CORESET with the minimum CORESET ID in the nearest time slot of the channel under the condition that a second preset condition is met.
28. A base station, characterized in that the base station comprises: a processor and a memory;
the memory is to store instructions;
the processor is configured to read the instructions to perform the method of any of claims 12 to 20.
29. A UE, wherein the UE comprises: a processor and a memory;
the memory is to store instructions;
the processor is configured to read the instructions to perform the method of any of claims 1 to 11 and 21 to 24.
30. A communication system, characterized in that the communication system comprises a base station according to claim 28 and a UE according to claim 29.
31. A storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, implements the method of any one of claims 1 to 24.
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| PCT/CN2020/109604 WO2021032061A1 (en) | 2019-08-16 | 2020-08-17 | Method and apparatus for determining spatial relationship information |
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| WO2021032061A1 (en) * | 2019-08-16 | 2021-02-25 | 中兴通讯股份有限公司 | Method and apparatus for determining spatial relationship information |
| WO2021226946A1 (en) * | 2020-05-14 | 2021-11-18 | Apple Inc. | Determining default beam and qcl collision handling |
| WO2022040907A1 (en) * | 2020-08-25 | 2022-03-03 | Qualcomm Incorporated | Uplink beam determination techniques for single frequency network communications |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092707A (en) * | 2019-08-16 | 2020-05-01 | 中兴通讯股份有限公司 | Method and device for determining spatial relationship information |
| CN110535617A (en) * | 2019-09-30 | 2019-12-03 | 中兴通讯股份有限公司 | A kind of information determines method, apparatus, the first communication node and storage medium |
-
2019
- 2019-08-16 CN CN201910766374.7A patent/CN111092707A/en active Pending
-
2020
- 2020-08-17 WO PCT/CN2020/109604 patent/WO2021032061A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021032061A1 (en) * | 2019-08-16 | 2021-02-25 | 中兴通讯股份有限公司 | Method and apparatus for determining spatial relationship information |
| WO2021226946A1 (en) * | 2020-05-14 | 2021-11-18 | Apple Inc. | Determining default beam and qcl collision handling |
| WO2022040907A1 (en) * | 2020-08-25 | 2022-03-03 | Qualcomm Incorporated | Uplink beam determination techniques for single frequency network communications |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021032061A1 (en) | 2021-02-25 |
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