CN112867161A - Resource availability determination method, resource allocation method, communication node and storage medium - Google Patents
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Abstract
The application provides a resource availability determination method, a resource allocation method, a communication node and a storage medium. The method comprises the steps of obtaining resource configuration information, wherein the resource configuration information comprises a first signaling and a second signaling, the first signaling comprises at least one resource availability combination, one resource availability combination corresponds to one combination index, and the second signaling is used for indicating at least one combination index; and determining the availability of the resource according to the resource configuration information.
Description
Technical Field
The present application relates to wireless communication networks, and for example, to a resource availability determination, resource configuration method, communication node, and storage medium.
Background
The IAB can support a multi-hop network, and the IAB node has two functions: a distributed unit DU function (i.e., a base station), that is, an IAB node provides a radio access function for a child node or a terminal (UE) like a base station; 2) Mobile-Termination functions (i.e., terminals), i.e., IAB nodes, are controlled and scheduled by a parent node (IAB node or donor IAB) like a UE. The Rel-16 IAB mainly studies a time division multiplexing scenario between the IAB nodes MT and DU (or between the parent link and the child link of the IAB node), and provides a method for determining availability of time domain resources by the IAB node DU, for a scenario in which the IAB nodes MT and DU implement simultaneous operation through frequency division multiplexing or space division multiplexing, only supports capability reporting, and does not provide a division scheme of frequency domain resources, that is, if the IAB node DU determines that a certain time domain symbol is available, all frequency domain resources corresponding to the symbol are considered to be available, or which frequency domain resources can be used are determined according to a scheduling condition of the parent node of the IAB node to the IAB node MT. Rel-17 IAB enhances frequency division multiplexing and space division multiplexing on the basis of Rel-16, so how to divide resources of an IAB node MT and a DU in a frequency domain and a space domain and how to judge the availability of time-frequency resources is a problem which needs to be solved urgently.
Disclosure of Invention
The application provides a resource availability determination method, a resource configuration method, a communication node and a storage medium, which are used for accurately determining available resources according to resource configuration information and reducing interference between a parent link and a sub-link.
An embodiment of the present application provides a method for determining resource availability, including:
acquiring resource configuration information, wherein the resource configuration information comprises a first signaling and a second signaling, the first signaling comprises at least one resource availability combination, one resource availability combination corresponds to one combination index, and the second signaling is used for indicating at least one combination index;
and determining the availability of the resource according to the resource configuration information.
The embodiment of the present application further provides a resource allocation method, including:
the method comprises the steps of sending resource configuration information, wherein the resource configuration information comprises a first signaling and a second signaling, the first signaling comprises at least one resource availability combination, one resource availability combination corresponds to one combination index, and the second signaling is used for indicating at least one combination index.
An embodiment of the present application further provides a communication node, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the resource availability determination method or the resource configuration method described above when executing the program.
An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the resource availability determination method or the resource configuration method described above.
Drawings
Fig. 1 is a flowchart of a resource availability determination method according to an embodiment;
fig. 2 is a schematic diagram of resource allocation information according to an embodiment;
fig. 3 is a schematic diagram of resource allocation information according to another embodiment;
FIG. 4 is a flowchart of a resource allocation method according to an embodiment;
fig. 5 is a schematic structural diagram of an apparatus for determining availability of resources according to an embodiment;
fig. 6 is a schematic structural diagram of a resource allocation apparatus according to an embodiment;
fig. 7 is a schematic hardware structure diagram of a communication node according to an embodiment.
Detailed Description
The present application will be described with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. 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. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
A node that has a direct connection (e.g., a wired connection) with the core network is a donor IAB (IAB donor), which is composed of a Central Unit (CU) and one or more Distributed Units (DUs), and the donor IAB can obtain downlink data or send uplink data to the core network. Taking an IAB node as a current node of reference, wherein a node at the upper stage is a father node, and the father node can be the IAB node or a donor IAB; the next-level node is a child node, and the child node may be an IAB node or a UE. The link between the IAB node and the previous node is called a parent link, and the link between the IAB node and the next node (or UE) is called a child link. More specifically, a link between the IAB node and its parent node is called a parent backhaul link, and is divided into a downlink parent backhaul link and an uplink parent backhaul link; links between the IAB nodes and the IAB subnodes are called subbackhaul links and are divided into downlink subbackhaul links and uplink subbackhaul links; the link between the IAB node and its UE child node is called a child access link and is divided into a downlink child access link and an uplink child access link.
The CU provides cell resource configuration for the IAB node DU, including the direction of each symbol in the slot and the attribute of the symbol in the same direction in the slot, where the direction of the symbol includes an UpLink (DL), a DownLink (UpLink, UL) or a Flexible (F) symbol, and the attribute of the symbol includes a Hard (Hard), Soft (Soft) or Unavailable (Not Available or Unavailable). Thus the time domain resource types of IAB node DU include 7: hard DL, Hard F, Hard UL, Soft DL, Soft F, Soft UL, not available. In the case that downlink, uplink, or flexible symbols are configured as Hard, the IAB node DU may accordingly transmit data, receive data, or transmit or receive data on the symbols, respectively. In case that downlink, uplink or flexible symbols are configured to be unavailable, the IAB node DU can neither transmit nor receive data on the symbol. In the case that the downlink, uplink or flexible symbol is configured as Soft, the IAB node DU may transmit data, receive data, or transmit or receive data on the symbol in several cases:
1) no data is sent or received by the IAB node MT on this symbol;
2) the IAB node MT transmits data or receives data on the symbol, and its transmission or reception is not changed because the IAB node DU uses the symbol;
3) the IAB node MT detects a Downlink Control Information (DCI) format 2_5(DCI format 2_5), and an Availability Indication (AI) index field value in the DCI format 2_5 indicates that the Soft symbol is available.
Also, the symbol for which the IAB node DU transmits or receives a particular signal or channel is equivalent to being configured as Hard. Transmitting or receiving special signals or channels includes, but is not limited to: transmitting a Synchronization Signal and a Physical Broadcast Channel Block (SSB), transmitting a PDCCH corresponding to a type 0 Physical Downlink Control Channel (PDCCH) common search space set (which may be carried in a pdccconfigsib 1, a searchbace ib1, or a searchbace zero cell), receiving a Physical Random Access Channel (PRACH), receiving a Scheduling Request (SR), transmitting a periodic Channel State Information Reference Signal (CSI-RS), transmitting a System message (System Information, SI), receiving a semi-static uplink transmission, transmitting a semi-static Downlink transmission, and the like.
The serving cell (or network side) of the IAB node MT may indicate the availability of time domain symbols of the IAB node DU through DCI format 2_ 5. In order to support Frequency Division Multiplexing (FDM) or Space Division Multiplexing (SDM) between an MT and a DU of an IAB node (or between a parent link and a child link of the IAB node), the resource configuration of the IAB node DU needs to be enhanced, that is, the configuration of Frequency domain and Space domain resources needs to be considered, so as to reduce the interference between the parent link and the child link during Multiplexing.
In the embodiment of the present application, a resource availability determining method is provided, where resource availability combination is indicated and combination index is indicated through resource configuration information, and resource availability in both frequency domain and spatial domain can be flexibly and comprehensively indicated, and an IAB node determines resource availability according to the resource availability combination and indicates combination index, so as to reduce interference between a parent link and a child link.
Fig. 1 is a flowchart of a resource availability determining method according to an embodiment, and as shown in fig. 1, the method according to the embodiment includes step 110 and step 120.
In step 110, resource configuration information is obtained, where the resource configuration information includes a first signaling and a second signaling, the first signaling includes at least one resource availability combination, one resource availability combination corresponds to one combination index, and the second signaling is used to indicate at least one combination index.
In step 120, the availability of resources is determined according to the resource configuration information.
In this embodiment, the IAB node obtains resource configuration information from the network side (e.g. a CU or a parent node or a serving cell of the IAB node MT), where the resource configuration information includes a first signaling and a second signaling, the first signaling provides at least one resource availability combination, and a corresponding relationship between each resource availability combination and a combination index; the second signaling is for indicating at least one combination index. The resource availability combination is used to indicate the availability of time-frequency resources or space-frequency resources, and in the case of indicating time-frequency resources, may indicate the availability of frequency-domain resources in at least one time unit, may indicate the availability of symbols of a time domain and the availability of frequency-domain resources in at least one time unit, and may also indicate the availability of time-frequency resources in at least one time unit. The IAB node may determine the corresponding resource availability combination according to the combination index of the second signaling indication, thereby determining the availability of the resource in the corresponding time unit indicated by the resource availability combination. The second signaling comprises one of: DCI, Media Access Control (MAC) Control unit (CE).
In this embodiment, the resource availability combination may be used to indicate the availability of resources in at least one time unit of the cell of the IAB node DU, for example, to indicate the availability of a Soft symbol in one time unit of the cell of the DU, or to indicate the availability of frequency domain resources corresponding to a Soft symbol in one time unit of the cell of the DU, or to indicate the availability of spatial domain resources corresponding to one time unit of the cell of the DU, and so on. Each resource availability combination may contain one or more elements, each element corresponding to a time unit.
In this embodiment, the resource configuration information provides a correspondence between resource availability combinations and combination indexes, and indicates at least one resource availability combination, so as to indicate availability of resources in at least one time unit, where the resources may be frequency division multiplexing or space division multiplexing resources, and the IAB node accurately determines availability of the resources according to the resource availability combinations and the combination indexes.
In one embodiment, a time unit comprises a time slot or an integer multiple of a time slot.
In an embodiment, the first signaling may indicate at least one first resource availability combination for frequency domain resources or time frequency resources and at least one second resource availability combination for spatial domain resources, where one first resource availability combination corresponds to one first index and one second resource availability combination corresponds to one second index. Accordingly, the second signaling may indicate one first index for the frequency domain resources and one second index for the spatial domain resources, so as to indicate the corresponding resource availability combination to the IAB node and provide the IAB node with determination of the availability of the corresponding resource.
In an embodiment, determining the availability of the resource according to the resource configuration information includes at least one of:
determining availability of frequency domain resources in at least one time unit according to the resource configuration information;
and determining the availability of the symbols in at least one time unit and the availability of frequency domain resources according to the resource configuration information.
In this embodiment, the IAB node may determine, according to the resource configuration information sent by the network side, the availability of the frequency domain resources in at least one time unit (the availability of the symbols in the time domain may be indicated or determined by other signaling, and the resource availability combination in the first signaling is mainly used for indicating or determining the availability of the frequency domain resources), or may determine the availability of the symbols in at least one time unit and the availability of the frequency domain resources (the resource availability combination in the first signaling is used for both indicating the availability of the symbols and the availability of the frequency domain resources).
In an embodiment, the resource availability combination comprises a first resource availability combination indicating an availability of frequency domain resources in at least one time unit.
In this embodiment, the first resource availability combination is used to indicate the availability of frequency domain resources. The first resource availability combination may contain one or more elements, each element or every K2 elements corresponding to a time unit; wherein K2 is an integer greater than 0.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of frequency domain resources in a corresponding time unit; the elements correspond to at least one usability pattern.
In this embodiment, each element in the first combination of resource availability corresponds to at least one availability pattern for indicating the availability of frequency domain resources within a respective time unit.
In an embodiment, the elements in the first resource availability combination include at least one of elements of a first type, elements of a second type, and elements of a third type.
The first class of elements corresponds to K1 availability patterns, the K1 availability patterns being associated with frequency domain resources corresponding to one of the following for a time unit: symbols of K1 directions, symbols of K1 attributes, symbols of K1 time domain resource types, and K1 is an integer greater than 0, for example, element a in a first resource availability combination is a first type element, element a corresponds to K1 ═ 3 availability patterns, and the 3 availability patterns are respectively used to indicate the availability of frequency domain resources corresponding to the symbols of DL, UL, and F in a time unit corresponding to element a;
the second type of element corresponds to an availability pattern associated with frequency domain resources corresponding to a time unit, for example, element B in the first resource availability combination is the second type of element, and element B corresponds to 1 availability pattern, which is used to indicate availability of frequency domain resources (frequency domain resources corresponding to symbols including different directions, attributes and/or time domain resource types) in the time unit corresponding to element B;
the third type of element corresponds to an availability pattern, and every K2 availability patterns are associated with a frequency domain resource corresponding to one of the following for one time unit: symbols of K2 directions, symbols of K2 attributes, symbols of K2 time domain resource types, and K2 is an integer greater than 0, for example, element C in the first resource availability combination is a third type element, element C corresponds to 1 availability pattern, and the availability patterns of every two elements C are used to indicate the availability of frequency domain resources corresponding to Soft DL and Soft UL symbols in the time unit corresponding to the two elements C, respectively.
In an embodiment, the K3 elements in the first resource availability combination correspond to K3 availability patterns, the K3 availability patterns being associated with frequency domain resources corresponding to one of the following in at least one time unit: symbols of K3 directions, symbols of K3 attributes, and symbols of K3 time domain resource types, wherein K3 is an integer greater than 0.
In this embodiment, the first resource availability combination includes K3 elements, each element corresponds to an availability pattern, and symbols corresponding to K3 elements may span a time unit, that is, K3 elements are used to indicate the availability of frequency domain resources corresponding to symbols in K3 directions in at least one time unit.
In an embodiment, the usability pattern is configured or predefined for at least one of:
indicating the availability of the frequency domain unit corresponding to the starting frequency domain unit and the number of frequency domain units, e.g., indicating the availability of 10 frequency domain units starting from frequency domain unit 1;
indicating the availability of a frequency domain unit corresponding to a Resource Indication Value (RIV); for example, a RIV value corresponds to a starting frequency domain unit and a number of consecutive frequency domain units, indicating one or more consecutive frequency domain units, such as 8 consecutive frequency domain units starting with frequency domain unit 2.
The availability of the frequency domain units is indicated by bit values of a bitmap corresponding to the frequency domain units, for example, 8 bits are included in the bitmap corresponding to the frequency domain units, and the 8 bit values are respectively used for indicating the availability of 8 frequency domain units. The number of frequency domain elements indicated may be less than bitmap length 8, such as indicating the availability of 6 frequency domain elements with the first 6 bit values of the 8 bit values, ignoring the last 2 bit values; the indicated number of frequency domain units may also be larger than the bitmap length 8, such as indicating the availability of 10 frequency domain units in a 8-bit value cycle, the corresponding bit values of the latter two frequency domain units being the same as the first 2 bit values, or not indicating the availability of the first 2 (or the last 2) frequency domain units;
indicating the availability of frequency domain units corresponding to a frequency domain unit index or index group, e.g., indicating the availability of frequency domain resources for frequency domain units with indices of 1 to 10, or indicating the availability of frequency domain units of index group 1 (index group 1 includes indices 1 to 10);
indicating the availability of frequency domain cells of a predetermined characteristic, e.g., indicating the availability of frequency domain cells configured as Soft.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating an availability of symbols in at least one time unit and an availability of frequency domain resources.
In this embodiment, the first resource availability combination is used to indicate the availability of a symbol and the availability of a frequency domain resource. The first resource availability combination may contain one or more elements, each element corresponding to a time unit.
In an embodiment, the elements in the first resource availability combination are used to indicate the availability of symbols and the availability of frequency domain resources in one time unit; one element corresponds to at least one usability pattern.
In this embodiment, each element in the first combination of resource availability corresponds to at least one availability pattern for indicating the availability of symbols and the availability of frequency domain resources within a respective time cell.
In an embodiment, the availability pattern is configured or predefined for indicating the availability of symbols and the availability of frequency domain resources in one time unit according to at least one of: symbol attribute, symbol direction, time domain resource type.
In an embodiment, indicating the availability of symbols in time units and the availability of frequency domain resources comprises:
for a soft symbol contained in a time unit, indicating the availability of the soft symbol and the availability of frequency domain resources corresponding to the soft symbol;
for a hard symbol contained in a time cell, indicating the availability of frequency domain resources to which the hard symbol corresponds.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating the availability of time-frequency resources in at least one time unit.
In this embodiment, the first resource availability combination is used to indicate the availability of time-frequency resources in at least one time unit. The first resource availability combination may contain one or more elements, each element corresponding to a time unit.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of time-frequency resources in a corresponding time unit; the elements correspond to at least one usability pattern.
In this embodiment, each element in the first resource availability combination corresponds to at least one availability pattern for indicating the availability of time-frequency resources within a respective time unit.
In an embodiment, the availability pattern is configured or predefined for indicating the availability of time-frequency resources in a time unit according to one of:
indicating the availability of time-frequency resources by bit values of a bitmap corresponding to the time-frequency resource units, wherein one time-frequency resource unit comprises a symbol group in a time domain and a frequency domain unit in a frequency domain, and one symbol group comprises one of the following: a symbol of one direction, a symbol of one attribute, a symbol of a time domain resource type, e.g., a bitmap corresponding to a time frequency resource unit includes 8 bits, each bit value indicating availability of a time frequency resource unit composed of a symbol of one direction and a frequency domain unit;
indicating availability of a symbol group by bit values of a first bitmap corresponding to the symbol group and indicating availability of frequency domain units by bit values of a second bitmap corresponding to the frequency domain units, wherein the symbol group and the frequency domain units are both indicated as available, time-frequency resources corresponding to the symbol group and the frequency domain units are available, and the symbol group and the frequency domain units are not both indicated as available, and the time-frequency resources corresponding to the symbol group and the frequency domain units are not available or the availability is not indicated, e.g., the first bitmap comprises 8 bits for indicating availability of 8 symbol groups, respectively, the second bitmap comprises 8 bits for indicating availability of 8 frequency domain units, for a time-frequency resource unit composed of the first symbol group and the first frequency domain unit, if both the bit value of the first bit in the first bitmap and the bit value of the first bit in the second bitmap are indicated as available, the time-frequency resource unit is available and otherwise is not available or indicated.
In one embodiment, the method of determining a symbol group for a time unit comprises one of:
the downlink symbols form a symbol group, the flexible symbols form a symbol group, and the uplink symbols form a symbol group;
hard symbols constitute a symbol group, soft symbols constitute a symbol group, and unavailable symbols constitute a symbol group;
hard symbols constitute a symbol group, and soft symbols constitute a symbol group;
except for unavailable symbols, each symbol in the symbols of 6 time domain resource types forms a symbol group
Soft downlink symbols form a symbol group, soft flexible symbols form a symbol group, and soft uplink symbols form a symbol group;
except for the unusable symbols, the downlink symbols constitute a symbol group, the flexible symbols constitute a symbol group, and the uplink symbols constitute a symbol group.
In an embodiment, the availability pattern belongs to a set of availability patterns, the set of availability patterns being included in the resource configuration information or being predefined.
In one embodiment, the set of usability patterns satisfies one of:
one DU corresponds to one availability pattern set;
one cell or carrier of the DU corresponds to one availability pattern set;
for a beam or set of beams of the MT, one DU corresponds to one set of availability patterns;
for one beam or beam group of the MT, one cell or carrier of the DU corresponds to one availability pattern set.
In one embodiment, the combined index includes a first index corresponding to a first resource availability combination;
in a case that a cell of the DU is configured with a supplementary uplink carrier, a first index of the second signaling indication corresponds to a first resource availability combination of the cell carrier and the supplementary uplink carrier, respectively; alternatively, the first and second electrodes may be,
the first index of the second signaling indication corresponds to a first resource availability combination, and the cell carrier and the supplemental uplink carrier correspond to different elements of the first resource availability combination, respectively.
In this embodiment, for the availability indication of the frequency domain resource, or the availability indication of the symbol and the frequency domain resource, the first index indicates 2 first resource availability combinations, which are respectively used to indicate resource availability of the cell carrier and the supplemental uplink carrier. Or, a part of elements in the first resource availability combination indicated by the first index are used for indicating resource availability of the cell carrier, and another part of elements are used for indicating resource availability of the supplementary uplink carrier.
In one embodiment, the combined index includes a first index corresponding to a first resource availability combination;
for a Frequency Division Duplex (FDD) cell of the DU, a first index of the second signaling indication corresponds to a first resource availability combination of the uplink carrier and the downlink carrier, respectively; alternatively, the first and second electrodes may be,
the first index of the second signaling indication corresponds to a first resource availability combination, and the uplink carrier and the downlink carrier correspond to different elements of the first resource availability combination respectively.
In this embodiment, for the availability indication of the frequency domain resource, or the availability indication of the symbol and the frequency domain resource, the first index indicates 2 first resource availability combinations, which are respectively used to indicate resource availability of the uplink carrier and the downlink carrier. Or, a part of elements in the first resource availability combination indicated by the first index are used for indicating resource availability of the uplink carrier, and another part of elements are used for indicating resource availability of the downlink carrier.
In an embodiment, the resource configuration information further includes at least one of the following information: a second signaling payload size, a Radio Network Temporary Identity (RNTI) for frequency domain availability indication, a search space set of the monitored PDCCH, a position of a first index corresponding to the first resource availability combination in the second signaling, a first reference subcarrier interval, a DU Identity, a cell Identity of the DU, an MT Identity, a cell Identity of the MT, a beam group of the MT, a beam Identity of the MT, a beam group Identity of the MT, a time interval at which the second signaling starts to take effect, and a time unit number at which the second signaling takes effect.
In one embodiment, a combination of resource availability satisfies one of:
configuring at least one first resource availability combination for one DU;
configuring at least one first resource availability combination for one cell of the DU;
configuring at least one first resource availability combination for one carrier of one DU;
configuring, for one beam or beam group of the MT, at least one first resource availability combination for one DU;
for one beam or beam group of one cell of the MT, one cell or carrier of the DU configures at least one first resource availability combination.
In an embodiment, the second signaling further comprises at least one of: MT identity, MT beam group identity, DU cell identity, DU carrier identity, time interval for the second signaling to become effective, and the number of time units for the second signaling to become effective.
In an embodiment, the first index corresponding to the first resource availability combination in the second signaling is used to indicate availability of frequency domain resources in at least one time unit starting from one of the following time slots: and the DU slot which intersects with the MT slot which detects the second signaling and appears earliest is separated from the MT slot which detects the second signaling by Ya DU slots and appears earliest DU slot, wherein Ya is an integer which is greater than or equal to 0.
In an embodiment, the first index corresponding to the first resource availability combination in the second signaling is used to indicate availability of symbols and availability of frequency domain resources in at least one time unit starting from one of the following time slots: the DU slot that intersects the MT slot in which the second signaling is detected and that occurs earliest is separated from the MT slot in which the second signaling is detected by a DU slot that occurs earliest by Yb number of DU slots, where Yb is an integer greater than or equal to 0.
In an embodiment, the subcarrier spacing corresponding to the resource allocation information is one of: a first reference subcarrier spacing, a subcarrier spacing indicating soft symbol availability, and a subcarrier spacing provided by DU resource configuration.
In an embodiment, the method further comprises:
step 130: monitoring a PDCCH indicating availability in at least one of the following search spaces: a common search space, a dedicated search space.
In an embodiment, the method further comprises: step 100: acquiring frequency domain resource configuration information;
the frequency domain resource configuration information includes at least one of: frequency domain unit configuration information, attribute configuration information of the frequency domain units, and frequency domain unit configuration with undetermined availability;
wherein the frequency domain unit configuration information includes at least one of the following parameters: the method comprises the following steps of (1) obtaining the size of a frequency domain unit, the number of the frequency domain units, the initial position of the frequency domain unit, the RIV of the frequency domain unit, the identification of the frequency domain unit and the subcarrier interval corresponding to the frequency domain unit;
the attribute configuration information includes at least one of: hard, soft, unusable.
In an embodiment, the method further comprises: step 102: determining a frequency domain unit corresponding to a carrier according to predefined information;
the predefined information includes one of: the frequency domain unit size, the number of frequency domain units, the relationship between the frequency domain unit size and the carrier size, and the relationship between the frequency domain unit number and the carrier size.
In one embodiment, step 102 includes:
under the condition that the predefined information comprises the relationship between the size of the frequency domain unit and the size of the carrier, determining the size of the frequency domain unit according to the size of the carrier and the relationship between the size of the carrier and the size of the frequency domain unit, and further determining the frequency domain unit corresponding to the carrier; alternatively, the first and second electrodes may be,
and under the condition that the predefined information comprises the relationship between the number of the frequency domain units and the size of the carrier, determining the number of the frequency domain units according to the size of the carrier and the relationship between the size of the carrier and the number of the frequency domain units, and further determining the frequency domain units corresponding to the carrier.
In addition, the predefined information includes the relationship between the sizes of multiple sets of frequency domain units and the size of the carrier, and the network side also provides configuration indication information, and can determine which set of frequency domain unit size and carrier size configuration is adopted according to the configuration indication information, so as to further determine the frequency domain unit corresponding to the carrier. Similarly, the predefined information includes the relationship between the number of sets of frequency domain units and the size of the carrier, and the network side also provides configuration indication information, and can determine which set of frequency domain unit number and carrier size configuration is adopted according to the configuration indication information, so as to further determine the frequency domain unit corresponding to the carrier.
In an embodiment, the first resource availability combination is used to indicate the availability of at least one of the following frequency domain resources: the frequency domain unit comprises a frequency domain unit with soft attribute, a configured set of frequency domain units, a frequency domain unit corresponding to a symbol with soft attribute and not explicitly indicated as available symbol, a frequency domain unit corresponding to a symbol with soft attribute and explicitly indicated as available symbol and a frequency domain unit with undetermined availability.
In an embodiment, the method further comprises: step 104: determining or predefining a frequency domain cell property by at least one of:
each combination of parameters for the starting frequency domain unit and the number of frequency domain units corresponds to a frequency domain unit attribute;
each RIV corresponds to a frequency domain element attribute;
determining two attributes of the frequency domain unit through a bitmap, wherein the two attributes are any two of hard, soft and unavailable;
three properties of the frequency domain cells are determined by at least 2 bitmaps.
In one embodiment, step 120 includes: determining availability of time-frequency resources in a time cell by one of:
under the condition that both the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
under the condition that at least one of the symbol and the frequency domain unit is available and the other one is not unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time-frequency resource is available under the condition that a set condition is met;
when the symbol is available and the frequency domain unit is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
when the frequency domain unit is available and the symbol is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
when the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when the availability of the symbol is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
and if the symbol is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and otherwise, the time-frequency resource is available under the condition that a set condition is met.
And if the symbol is not available, the time frequency resource corresponding to the symbol and the frequency domain unit is not available, and other time frequency resources are available under the condition of meeting set conditions.
And if the symbol is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and otherwise, the time-frequency resource is available under the condition that a set condition is met.
In an embodiment, the combination of resource availability includes a second combination of resource availability indicating at least one of: availability of beams for MT in at least one time unit and availability of beams for DU in at least one time unit.
In this embodiment, the IAB node may determine availability of the airspace resources in at least one time unit according to the resource configuration information sent by the network side, and the second resource availability combination in the first signaling is mainly used to indicate or determine availability of the airspace resources.
In an embodiment, the element in the second resource availability combination indicates at least one of: availability of beams of MT in the corresponding time unit, availability of beams of DU in the corresponding time unit;
the element corresponds to at least one beam or group of beams.
In this embodiment, the second resource availability combination is used to indicate the availability of airspace resources. The second resource availability combination may contain one or more elements, each element corresponding to a time unit.
In one embodiment, the beam is associated with one of: reference signal, SSB-related Configuration, Transmission Configuration Indication (TCI) status, sounding reference signal Indication.
In an embodiment, the resource configuration information further includes at least one of:
an RNTI indicated by spatial domain availability, a second signaling payload size, a search space set of a monitored PDCCH, a serving cell identifier of an MT, a cell identifier of a DU, a position of a second index corresponding to a second resource availability combination in a second signaling, a second reference subcarrier interval, a first time interval at which the second signaling starts to take effect, a second time interval at which the second signaling starts to take effect, a bandwidth part BWP identifier, and the number of time units at which the second signaling takes effect.
In this embodiment, in the case that the granularity of the time interval is a slot, the first time interval is denoted as Y1, and the second signaling starts to take effect at an MT slot that is separated from the MT slot where the second signaling is detected by Y1 slots; the second time interval is denoted as Y2, and the second signaling takes effect starting at the earliest occurring DU slot that is separated by Y2 DU slots from the MT slot in which the second signaling is detected. In the case where the granularity of the time interval is not the time slot, the time interval needs to be converted into the number of time slots Y1 and Y2. In an embodiment, the beam to which the signal or channel of the MT is configured is included in the beam indicated by the second signaling, or the beam to which the signal or channel of the MT is configured does not include the beam indicated by the second signaling.
In an embodiment, the combined index includes a second index corresponding to a second resource availability combination;
in case that the cell of the MT or DU is configured with a supplementary uplink carrier, the second index of the second signaling indication corresponds to a second resource availability combination of the cell carrier and the supplementary uplink carrier, respectively; alternatively, the first and second electrodes may be,
the second index of the second signaling indication corresponds to a second resource availability combination, and the cell carrier and the supplemental uplink carrier correspond to different elements of the second resource availability combination, respectively.
In this embodiment, for the availability indication of spatial domain resources, the second index indicates 2 second resource availability combinations, which are respectively used to indicate resource availability of the cell carrier and the supplemental uplink carrier. Or, a part of elements in the second resource availability combination indicated by the second index are used for indicating resource availability of the cell carrier, and another part of elements are used for indicating resource availability of the supplementary uplink carrier.
In an embodiment, the combined index includes a second index corresponding to a second resource availability combination;
for an FDD cell of an MT or DU, a second index of the second signaling indication corresponds to a second resource availability combination of an uplink carrier and a downlink carrier, respectively; alternatively, the first and second electrodes may be,
the second index of the second signaling indication corresponds to a second resource availability combination, and the uplink carrier and the downlink carrier correspond to different elements in the second resource availability combination respectively.
In this embodiment, for the availability indication of the spatial domain resource, the second index indicates 2 second resource availability combinations, which are respectively used for indicating resource availability of the uplink carrier and the downlink carrier. Or, a part of elements in the second resource availability combination indicated by the second index are used for indicating resource availability of the uplink carrier, and another part of elements are used for indicating resource availability of the downlink carrier.
In an embodiment, the second index corresponding to the second resource availability combination in the second signaling is used to indicate the availability of beams of the MT in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
In an embodiment, the second index corresponding to the second resource availability combination in the second signaling is used to indicate the availability of the beam of the DU in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
The resource availability determination method is explained below by specific examples.
In example 1 and example 2, the availability of resources of the IAB node DU is indicated by extending DCI format 2_5, or employing a new DCI format, or employing a MAC CE.
Example 1: each element in the availability combination indicates at least one availability pattern index, one index corresponding to one availability pattern, indicating the availability of frequency domain resources. The availability of the beam indication frequency domain resources for the MT may be considered.
The IAB node acquires resource configuration information from a network side (CU or a parent node of the IAB node or a serving cell of the IAB node MT), wherein the resource configuration information comprises first signaling and second signaling, and the first signaling provides at least one first resource availability combination and the corresponding relation between each first resource availability combination and a first index aiming at frequency domain resources; the second signaling is used to indicate at least one first index. The IAB node may determine a corresponding first resource availability combination from the first index of the second signaling indication, thereby determining the availability of frequency domain resources within the corresponding time cell indicated by the first resource availability combination. The second signaling comprises one of: DCI, MAC CE.
In an embodiment, each first resource availability combination indicates the availability of frequency domain resources in at least one time unit of a cell or carrier of an IAB node DU.
In an embodiment, one element value in the first resource availability combination indicates an availability pattern of frequency domain resources in one time unit, the resource configuration information further comprises a set of availability patterns of frequency domain resources, or a set of availability patterns of predefined frequency domain resources.
In an embodiment, the IAB node acquires the frequency domain resource configuration information of the IAB node DU from the network side (CU or parent node of the IAB node or serving cell of the IAB node MT). Wherein the frequency domain resource configuration information includes at least one of: the frequency domain unit configuration information, the attribute configuration information of the frequency domain unit, and the frequency domain unit configuration information with undetermined availability.
In one embodiment, the frequency domain unit configuration information includes at least one of the following parameters: the size of the frequency domain units, the number of the frequency domain units, the initial position of the frequency domain units, the RIV of the frequency domain units, the identification of the frequency domain units and the subcarrier intervals corresponding to the frequency domain units.
For example, one frequency domain unit RIV corresponds to one frequency domain unit, and the frequency domain unit starting position and the frequency domain unit size can be determined from the RIV. Or one frequency-domain unit RIV corresponds to one starting frequency-domain unit and the number of consecutive frequency-domain units, i.e. one frequency-domain unit RIV corresponds to at least one consecutive frequency-domain unit starting from the starting frequency-domain unit.
In an embodiment, the frequency-domain resource configuration information includes at least one set of frequency-domain unit configuration information for an IAB node DU to a cell or carrier or BWP.
In an embodiment, the properties of the frequency domain elements include at least one of: hard, soft, unusable.
In an embodiment, the frequency domain unit configuration information to which availability is pending is used to indicate the frequency domain unit to which availability is pending.
In an embodiment, a frequency-domain unit whose availability is pending is considered available by an IAB node DU if a condition is satisfied. For example, the parent node explicitly indicates by signaling that the frequency domain unit can be used, or the IAB node DU implicitly determines that the DU can use the frequency domain unit, or the IAB node DU determines that the IAB node MT does not use the frequency domain unit.
In one embodiment, if the IAB node is not provisioned with the attribute configuration of the frequency domain cells, the IAB node assumes that the attributes of the frequency domain cells corresponding to the Hard symbol and the Soft symbol explicitly indicated as available are Hard and the attributes of the frequency domain cells corresponding to the Soft symbol not explicitly indicated as available are Soft.
In one embodiment, if the IAB node is not provided with the attribute configuration of the frequency domain unit, the IAB node assumes that the attribute of the frequency domain unit corresponding to the Hard symbol and the Soft symbol is one of the following: hard, soft.
In an embodiment, if the IAB node is not provided with the attribute configuration of the frequency domain unit, the IAB node assumes that the attribute of the frequency domain unit corresponding to the unavailable symbol is unavailable.
In an embodiment, the IAB node determines a frequency domain unit corresponding to one carrier and having pending availability according to a predefined manner. For example, the frequency domain unit of the predetermined characteristic is a frequency domain unit whose availability is to be determined.
In an embodiment, the IAB node determines a frequency domain unit corresponding to one carrier according to a predefined manner. Wherein the predefined information comprises one of: the frequency domain unit size, the number of frequency domain units, the relationship between the frequency domain unit size and the carrier size, and the relationship between the frequency domain unit number and the carrier size.
In an embodiment, the IAB node determines the size of the frequency domain unit according to a predefined relationship between the frequency domain unit size and the carrier size, and the carrier size.
In an embodiment, the IAB node determines the number of frequency domain elements according to a predefined relationship between the number of frequency domain elements and the carrier size, and the carrier size.
In an embodiment, a plurality of configurations of the relationship between the frequency domain unit size and the carrier size are predefined, and the IAB node determines the size of the frequency domain unit according to the carrier size and the configuration indication information. The configuration indication information is used to indicate which predefined configuration is adopted, for example, configuration 1 is: when the carrier size is 1 to Z1 Resource Blocks (RBs), the frequency domain unit size is X1; when the carrier size is larger than Z1 RBs, the frequency domain unit size is X2 RBs. The configuration 2 is as follows: when the carrier size is 1 to Z1 'RBs, the frequency domain unit size is X1'; when the carrier size is larger than Z1 'RBs, the frequency domain unit size is X2' RBs, the configuration indication information indicates whether to adopt configuration 1 or configuration 2, then the size of the frequency domain unit can be determined according to the carrier size and the indicated configuration, and the configuration indication information is provided by the network side. Z1, X1, X2, Z1 ', X1 ', X2 ' are integers greater than 0.
In an embodiment, a configuration of a relation between a plurality of frequency domain unit numbers and a carrier size is predefined, and the IAB node determines the number of frequency domain units according to the carrier size and configuration indication information. The configuration indication information is used for indicating which predefined configuration is adopted, and the configuration indication information is provided by the network side.
The following method for determining a frequency domain unit corresponding to a carrier is given, for example, one of the following methods may be adopted in implementation:
the method comprises the following steps: for a start position is NstartSize of NsizeCarrier of resource block, frequency domain unit number (N)FU) Is NFU＝ceil((Nsize+(NstartmodP))/P), where,
the size of the first frequency domain unit is
If (N)start+Nsize) modP > 0 and the size of the last frequency domain unit is
Otherwise, the size of the last frequency domain unit is P;
the remaining frequency domain unit size is P.
The method 2 comprises the following steps: for a size of NsizeCarrier of resource block, frequency domain unit number (N)FU) Is NFU＝ceil(Nsize/P), the size of the first (or last) frequency domain unit is NsizemodP, remaining frequency domain unitsThe size is P.
The method 3 comprises the following steps: frequency domain element n is P resource blocks starting from resource block Offset + P × n. Wherein Offset is the resource block number corresponding to the starting position of the frequency domain unit 0, or the number of resource blocks of which the starting position of the frequency domain unit 0 is Offset from the reference point a or the lower boundary of the carrier. For example, wherein Offset may be provided by the network side, or predefined.
The method 4 comprises the following steps: frequency domain unit n is from resource block SnBeginning PnAnd each resource block. n is a non-negative integer, SnNumbering resource blocks corresponding to the initial position of the frequency domain unit n, or the number of resource blocks of which the initial position of the frequency domain unit n deviates relative to a reference point A or a lower boundary of a carrier; pnIs the frequency domain unit size. For example, the RIV value may be provided by the network side, from which S is determinednAnd PnOr S is directly provided by the network sidenAnd Pn。
The method 5 comprises the following steps: for a size of NsizeThe carrier of each resource block is equally divided into M parts, and each part is a frequency domain unit. IAB node is not expected to be Nsizeand/M is a non-integer.
The method 6 comprises the following steps: for a size of NsizeCarrier of resource block, definition M1＝NsizemodM，K1＝ceil(Nsizeand/M). If M is1> 0, front M1Unit size of frequency domain is K1And the remaining frequency domain unit size is K1-1; if M is1All frequency domain unit sizes are K ═ 01。
Where mod is a modulo (or remainder) operation, ceil () represents a ceiling operation, P is a configured or predefined frequency domain unit size, and M is a configured or predefined frequency domain unit number. The resource block numbering starts from the reference point a or the lower boundary of the carrier, i.e. subcarrier 0 of resource block 0 corresponds to the reference point a or the lower boundary of the carrier, or to subcarrier 0 of resource block 0 of the carrier. The above methods are only examples and do not exclude other methods.
In an embodiment, the availability pattern is used to indicate the availability of at least one of the following resources: the frequency domain unit is configured to be a soft frequency domain unit, the set of the configured frequency domain units is configured to be a frequency domain unit corresponding to a soft symbol, the frequency domain unit corresponding to a symbol which is configured to be soft and not explicitly indicated as usable, the frequency domain unit corresponding to a symbol which is configured to be soft and explicitly indicated as usable, and the frequency domain unit with pending availability.
In an embodiment, the frequency domain unit is a frequency domain unit corresponding to at least one of: carrier, BWP.
In an embodiment, the usability pattern is configured or predefined by at least one of:
1) indicating the availability of the frequency domain units corresponding to the starting frequency domain unit and the number of the frequency domain units;
2) indicating the availability of the frequency domain unit corresponding to a Resource Indicator Value (RIV). For example, one RIV corresponds to one starting frequency domain unit and the number of consecutive frequency domain units, from which at least one consecutive frequency domain unit starting from the starting frequency domain unit can be determined;
3) a Bitmap (Bitmap) corresponding to the frequency domain cells, the availability of the frequency domain cells being indicated by a bit value, e.g. a bit value of 1 indicating that the frequency domain cells are available, a bit value of 0 indicating that the frequency domain cells are not available or indicating the availability of the frequency domain cells;
4) indicating the availability of the frequency domain unit corresponding to the frequency domain unit index or index group;
5) indicating the availability of frequency domain units of a predetermined characteristic.
For example, the availability pattern indicates the availability of frequency domain cells by a frequency domain cell index or index set. Table 1 is a mapping relationship table of values of elements of a first resource availability combination (values of elements in a combined element when the combined element corresponds to a plurality of availability pattern indexes) and availability patterns. All usability patterns in table 1 constitute a set of usability patterns.
Table 1 mapping relation table of values of elements and usability patterns
As shown in table 1, taking the value 1 as an example, the corresponding usability pattern is: the frequency domain elements x0, x1, x2, x3 are indicated as available, no other frequency domain elements are indicated as available or other frequency domain elements are not available. For example, the usability pattern is indicated by a Bitmap corresponding to a frequency domain cell.
Table 2 is another mapping relationship table between values of elements of the first resource availability combination (values of elements in the combined elements when the combined elements correspond to multiple availability pattern indexes) and availability patterns. All usability patterns in table 2 constitute a set of usability patterns. As shown in table 2, it is assumed that the Bitmap size is 8 bits, and there is a one-to-one correspondence with 8 frequency domain units. An index of the availability pattern is 1, a bit value of 1 in the corresponding Bitmap indicates that the corresponding frequency domain cell is indicated as available, and a bit value of 0 indicates that the availability of the corresponding frequency domain cell is not indicated or that the corresponding frequency domain cell is not available.
Table 2 mapping relation table of values of elements and usability patterns
| Value of element (usability pattern index) | Frequency domain resource availability indication (availability pattern) |
| 0 | 0 0 0 0 0 0 0 0 |
| 1 | 1 1 1 1 0 0 0 0 |
| 2 | 0 0 0 0 1 1 1 1 |
| ...... | ......... |
| K-1 | 0 0 1 1 0 0 1 1 |
| |
1 1 1 1 1 1 1 1 |
It should be noted that if the Bitmap size is N, but only N1 frequency domain cells (N1 is smaller than N) need to indicate availability, that is, the Bitmap size is larger than the number of indicated frequency domain cells, N-N1 bits in the Bitmap are ignored, for example, the first N-N1 bits or the last N-N1 bits in the Bitmap, N-N1 bits of a specific location are ignored; or the first N1 bits (or the last N1 bits) of the Bitmap are used for indicating the availability of N1 frequency domain units, and other bit values are ignored; or configuring or predefining multiple sets of availability patterns with different Bitmap sizes (for example, configuring or predefining one set of availability patterns with a Bitmap size of 8 bits as shown in table 2, and then configuring or predefining one set of availability patterns represented by bitmaps smaller than 8 bits); or to allow a different Bitmap size for each usability pattern in a configured or predefined set of usability patterns.
If the Bitmap size is N, N2 frequency domain units (N2 is larger than N) need to indicate availability, namely the Bitmap size is smaller than the indicated number of frequency domain units, the front N2-N or the back N2-N frequency domain units are unavailable; alternatively, no availability indication is made for the first N2-N or last N2-N frequency domain cells; alternatively, the period of the availability pattern (i.e. Bitmap) corresponds to the availability of the frequency domain unit, for example, Bitmap with N6 is xxyyxx, and if N2 is 9, then the availability of the frequency domain unit is indicated by Bitmap xxyxxxxy after the period repetition (i.e. the first 3 bits and the last 3 bits are the same).
In an embodiment, at least one availability pattern set is configured for IAB node DUs. In this embodiment, all cells or carriers of an IAB node DU share a set of availability patterns.
In an embodiment, at least one set of availability patterns is configured for one cell or carrier of an IAB node DU.
In an embodiment, for at least one beam or beam group of an IAB node MT, at least one set of availability patterns is configured for one cell or carrier of an IAB node DU.
In one embodiment, the predetermined characteristic includes at least one of: the frequency domain unit index is even number, the frequency domain unit index is odd number, the frequency domain unit index is calculated according to a preset formula and then takes a specific value, the frequency domain unit index is calculated according to the preset formula, and the frequency domain unit index, the frequency domain unit with specific attribute and all the frequency domain units are calculated. For example, frequency domain elements of the predetermined characteristic are available, frequency domain elements of the non-predetermined characteristic are not available or indicate availability of frequency domain elements of the non-predetermined characteristic.
In one embodiment, the frequency domain unit is one of: resource Block, subcarrier, Resource Block Group, subcarrier Group, Precoding Resource Block Group (PRG), BWP.
In an embodiment, overlapping frequency domain resources are available if at least one of the at least two frequency domain units that overlap in frequency domain is indicated as available.
In one embodiment, one availability pattern corresponds to one availability pattern index.
In an embodiment, the availability includes at least one of: available, unavailable, not indicating availability.
In one embodiment, a Bitmap contains one of the following bits: the number of frequency domain units configured to be soft, the number of frequency domain units included in the set of configured frequency domain units.
In one embodiment, the Bitmap includes a number of bits equal to or greater than one of: the number of frequency domain units of the predetermined characteristic is X, the number of frequency domain units of the predetermined attribute is X, the number of frequency domain units configured to be soft is X, and the number of frequency domain units contained in the set of configured frequency domain units is X. The availability of frequency domain cells is indicated using X bits of a predetermined characteristic in the Bitmap, such as X bits starting with the least significant bit of the Bitmap or X bits ending with the most significant bit of the Bitmap.
In an embodiment, the first resource availability combination indicates availability of frequency domain resources in at least one time unit.
In an embodiment, one first resource availability combination corresponds to one first resource availability combination index.
In an embodiment, each element in the first combination of resource availability indicates an availability of frequency domain resources in one time unit, each element value in the first combination of resource availability corresponds to an availability pattern index, and the availability pattern corresponding to the availability pattern index is applied to the frequency domain resources corresponding to one time unit.
Fig. 2 is a schematic diagram of resource allocation information according to an embodiment. As shown in fig. 2, the availability of frequency domain resources of two cells or carriers of an IAB node DU is indicated, and the availability combinations corresponding to the combination indexes 0 to N of the first resource availability combination form one first resource availability combination set, and the availability combinations corresponding to the combination indexes 0 to M of the first resource availability combination form another first resource availability combination set, and the two first resource availability combination sets respectively correspond to two cells or carriers. An indication index field (i.e., a first index, which is a combination index of a first resource availability combination) in the DCI indicates availability of frequency domain resources in at least one time unit. Two cells or carriers of the IAB node DU are provided with the position of the indication field index in the DCI, respectively. An element (taking the index of an availability pattern) in the first combination of resource availability indicates the availability of frequency domain resources in a time unit. For example for the first cell, see the table on the left in fig. 2, the combination index of the first resource availability combination is 3, and the indices indicating the availability patterns of the frequency domain resources in 8 time units are respectively: 1. 1, 6, 4, 2, 1. For each time unit, the availability of the respective frequency domain unit may be determined from the mapping as shown in table 2 or table 3 according to the element of its corresponding first resource availability combination (i.e. the index of the availability pattern).
In an embodiment, each element in the first resource availability combination indicates the availability of frequency domain resources in a time unit, and specifically, each element value in the first resource availability combination corresponds to at least one availability pattern index, and one availability pattern index is applied to frequency domain resources corresponding to at least one of the following: a symbol of a direction of a time unit, a symbol of an attribute of a time unit, a symbol of a time domain resource type of a time unit.
Fig. 3 is a schematic diagram of resource allocation information according to another embodiment. As shown in fig. 3, for an availability pattern applied to frequency domain resources corresponding to a symbol in one direction of a time unit, availability combinations corresponding to first resource availability combination indexes 0 to N form a first resource availability combination set, each element value in the first resource availability combination corresponds to 3 availability pattern indexes, wherein the availability pattern corresponding to the first availability pattern index is applied to frequency domain resources corresponding to symbols in a first direction of the time unit (e.g., downlink symbols), the availability pattern corresponding to the second availability pattern index is applied to frequency domain resources corresponding to symbols in a second direction of the time unit (e.g., flexible symbols), and the availability pattern corresponding to the third availability pattern index is applied to frequency domain resources corresponding to symbols in a third direction of the time unit (e.g., uplink symbols). The symbols in the first, second and third directions are downlink, flexible and uplink symbols, respectively. This embodiment is merely an example and does not exclude other possibilities, such as the first, second and third direction symbols being uplink, flexible and downlink symbols, respectively, or other sequences of uplink, flexible and downlink symbols, respectively.
In addition, the actual symbol directions corresponding to the symbols in the first, second and third directions may also be determined according to the time sequence of the symbol directions in the time unit, and if the sequence of the symbol directions in the time unit is downlink-flexible-uplink, or downlink-flexible, or flexible-uplink, the symbols in the first, second and third directions are downlink, flexible and uplink symbols, respectively; if the sequence of the symbol direction in the time unit is uplink-flexible-downlink, or uplink-flexible, or flexible-downlink, the symbols of the first, second and third directions are uplink, flexible and downlink symbols, respectively; if the time units are all downlink, all uplink or all flexible symbols, the correspondence of the 3 availability pattern indices and the symbol directions is predefined, e.g. a time unit of all downlink symbols corresponds to a first availability pattern index corresponding to the time unit, a time unit of all flexible symbols corresponds to a second availability pattern index corresponding to the time unit, and a time unit of all uplink symbols corresponds to a third availability pattern index corresponding to the time unit. An indication index field (a combination index that takes the value of one first resource availability combination) in the DCI indicates the availability of frequency domain resources in at least one time unit. One element (taking the value as a set of 3 availability pattern indexes) in the first resource availability combination indicates the availability of frequency domain resources corresponding to symbols in different directions in one time unit.
For example, in fig. 3, a combination index (i.e., a first index) of a first resource availability combination indicated by an index field in DCI is 3, that is, indicates the availability of frequency domain resources in 3 time units, and for a first time unit, availability pattern indexes 1, 2, and 2 are respectively applied to frequency domain resources corresponding to symbols of 3 directions in the time unit; for the second time unit, the availability pattern indexes 6, 4 and 2 are applied to the frequency domain resources corresponding to the symbols of 3 directions in the time unit respectively; for the third time unit, the availability pattern indexes 2, 1 and 1 are applied to the frequency domain resources corresponding to the symbols of 3 directions in the time unit, respectively. It is of course not excluded that each element value of a first resource availability combination is applied to frequency domain resources corresponding to symbols in both directions of a time unit, e.g. to frequency domain resources corresponding to downlink and uplink symbols, in which case each element value of an availability combination corresponds to an index of 2 availability patterns, wherein the availability pattern corresponding to the first availability pattern index is applied to frequency domain resources corresponding to symbols in a first direction of a time unit (e.g. downlink symbols), and the availability pattern corresponding to the second availability pattern index is applied to frequency domain resources corresponding to symbols in a second direction of a time unit (e.g. uplink symbols), and the symbols in the first and second directions are downlink and uplink symbols, respectively, are merely examples, and the symbols in the first and second directions are uplink and downlink symbols, respectively.
For example, each element value of the first resource availability combination is applied to the frequency domain resource corresponding to the symbol of the at least one attribute of one time unit, and specifically, may be applied to the frequency domain resource corresponding to the Hard and Soft symbols, similar to the example applied to the frequency domain resources corresponding to the symbols in the downlink and uplink directions of one time unit, when each element value of the first resource availability combination corresponds to 2 availability pattern indexes, which are respectively applied to the frequency domain resources corresponding to the Hard and Soft symbols of one time unit. It is of course not excluded that the application to frequency domain resources corresponding to symbols of 3 attributes of a time unit, e.g. to frequency domain resources corresponding to Hard, Soft and unavailable symbols, is similar to the case of the application to frequency domain resources corresponding to symbols of 3 directions of a time unit, when each element value of an availability combination corresponds to 3 availability pattern indices applied to frequency domain resources corresponding to Hard, Soft and unavailable symbols of a time slot, respectively.
For example, each element value in a first resource availability combination is applied to a frequency domain resource corresponding to a symbol of at least one time domain resource type of a time unit, and in particular, may be applied to a frequency domain resource corresponding to 7 time domain resource types or a part of the time domain resource types therein, the number of applied time domain resource types is related to the number of availability pattern indexes corresponding to each element value of the first resource availability combination, and the availability pattern indexes corresponding to each element value of the first resource availability combination are respectively applied to frequency domain resources corresponding to 7 time domain resource types of a time slot or a part of the time domain resource types therein.
In the present application, the availability pattern index and the availability pattern may not be distinguished, and it is understood that both are equivalent, having a one-to-one correspondence, both indicating the availability of frequency domain resources within a time unit.
In an embodiment, one element in the first combination of resource availabilities corresponds to one availability pattern, and every K elements (or every K availability patterns) are associated with a frequency domain resource corresponding to one of the following for one time unit: symbols in K directions, symbols with K attributes, and symbols with K time domain resource types.
In an embodiment, each element in the first resource availability combination indicates the availability of frequency domain resources in one time unit, and specifically, for a part of elements (denoted as first class elements) in the first resource availability combination, each element value may indicate a plurality of availability pattern indexes, and the plurality of availability pattern indexes are applied to frequency domain resources corresponding to at least one of the following: the method comprises the following steps of a plurality of directional symbols of a time unit, a plurality of attributes of the time unit and a plurality of time domain resource types of the time unit; for another portion of the elements (denoted as the second type elements) in the first resource availability combination, each element value indicates an availability pattern index, and the availability pattern corresponding to the availability pattern index is applied to the frequency domain resource corresponding to a time unit.
In an embodiment, each element in the first resource availability combination indicates an availability of frequency domain resources in at least one time unit. For example, different elements in the first resource availability combination are applied to frequency domain resources corresponding to at least one of: symbols in different directions, symbols with different attributes, and symbols with different time domain resource types.
In an embodiment, the resource configuration information further comprises the number of time units the first resource availability combination is applied to.
In an embodiment, each element in the first resource availability combination indicates availability of frequency domain resources in at least one time unit, each element in the first resource availability combination indicates an availability pattern index applied to frequency domain resources corresponding to at least one of: at least one directional symbol, at least one attribute symbol, and at least one time domain resource type symbol.
In an embodiment, if the IAB node DU cell is configured with a supplemental uplink carrier, one first index indicated in the second signaling (DCI or MAC CE) may correspond to two first resource availability combinations, one first resource availability combination for indicating availability of frequency domain resources corresponding to the cell carrier (or TDD carrier) and another first resource availability combination for indicating availability of frequency domain resources for the supplemental uplink carrier.
In an embodiment, if the IAB node DU cell is configured with a supplemental uplink carrier, one first index indicated in the second signaling (DCI or MAC CE) may correspond to one first combination of resource availability, and the cell carrier (or TDD carrier) and the supplemental uplink carrier correspond to different elements of the first combination of resource availability, respectively.
For example, the reference subcarrier spacing for availability indications corresponding to the IAB node DU cell carrier (or TDD carrier) and the supplemental uplink carrier are μ and μ, respectivelySUL. If μ ≧ μSULFor each of the first resource availability combinations indicated by the first index in the DCI or MAC CE
An element of front
One element may be applied to the cell carrier and the next element to the supplemental uplink carrier; if μ < μSULFor each of the first resource availability combinations indicated by the first index in the DCI or MAC CE
Elements, the first element being applied to a cell carrier, and then
One element is applied to supplement the uplink carrier.
In an embodiment, for an FDD cell of an IAB node DU, one first index indicated in the second signaling (DCI or MAC CE) may correspond to two first resource availability combinations, which correspond to a downlink carrier and an uplink carrier, respectively.
In an embodiment, for an FDD cell of an IAB node DU, one first index indicated in the second signaling (DCI or MAC CE) corresponds to one first resource availability combination, and the downlink carrier and the uplink carrier correspond to different elements in the first resource availability combination respectively.
For example, similar to the case where the IAB node DU cell is configured with the supplemental uplink carrier, the uplink carrier and the supplemental uplink carrier in the above example (or TDD carrier) may be replaced by the downlink carrier and the uplink carrier, respectively, and the reference subcarrier interval of the availability indication may also be replaced accordingly. Alternatively, the uplink carrier and the downlink carrier are respectively replaced by the (or TDD carrier) and the supplementary uplink carrier in the above example, and the reference subcarrier interval of the availability indication is also replaced accordingly.
In an embodiment, the resource configuration information further includes at least one of the following information: DCI payload size, RNTI for frequency domain availability indication, search space set of the listening PDCCH, location of the identity (i.e. first index) of the first resource availability combination in the DCI.
For example, the resource configuration information includes a position of the first index in the DCI. The availability indication of frequency domain resources and the Soft symbol availability indication use the same DCI format and RNTI, and indication index fields of different positions in the DCI respectively indicate the Soft symbol availability and the frequency domain resource availability.
As another example, the resource configuration information includes a position of the RNTI and the first resource availability combination index of the frequency domain availability indication in the DCI. The availability indication of the frequency domain resources and the Soft symbol availability indication use the same DCI format. The IAB distinguishes whether the DCI provides a Soft symbol availability indication or a frequency domain resource availability indication through the RNTI, namely the Soft symbol availability indication and the frequency domain availability indication correspond to different RNTIs.
As another example, the resource configuration information includes a DCI payload size, an RNTI of the frequency domain availability indication, and a location of the first resource availability combination index in the DCI. The relative configuration of the availability indication of the frequency domain resources is completely independent of the configuration related to the Soft symbol availability indication.
In an embodiment, the value in the DCI indicating the index field indicates Soft symbol availability and availability of frequency domain resources in at least one time unit. That is, the indication index field corresponds to one Soft symbol availability combination and one first resource availability combination, and the value indicating the index field indicates the availability of the Soft symbol and the availability of the frequency domain resource in at least one time unit.
For example, the Soft symbol availability indication and the availability indication of frequency domain resources use the same DCI format, RNTI, and indication index field in DCI, which corresponds to one Soft symbol availability combination and one frequency domain resource availability combination.
In an embodiment, the resource configuration information further includes a first reference subcarrier spacing.
In an embodiment, the corresponding first reference subcarrier spacing of the cell or carrier of the IAB node DU is one of:
the subcarrier spacing in the frequency domain resource configuration of the IAB node DU cell or the carrier is the same;
the subcarrier spacing in the time domain resource configuration of the IAB node DU cell or the carrier is the same;
the subcarrier spacing in the time-frequency domain source configuration of the IAB node DU cell or the carrier is the same;
same as the subcarrier spacing of the soft symbol availability indication of the IAB node DU cell or carrier.
In an embodiment, the first reference subcarrier spacing includes at least one of:
a first subcarrier spacing, a second subcarrier spacing.
In an embodiment, for TDD, the first subcarrier spacing is a reference subcarrier spacing for an indication of availability of an IAB node DU cell.
In an embodiment, for TDD, the first subcarrier spacing is a reference subcarrier spacing for an indication of availability of a TDD carrier of an IAB node DU cell, and in case the IAB node DU cell is configured with a supplemental uplink carrier, the second subcarrier spacing is a reference subcarrier spacing for an indication of availability of a supplemental uplink carrier.
In an embodiment, for FDD, the first subcarrier spacing and the second subcarrier spacing are reference subcarrier spacings of availability indications of DL carriers and UL carriers, respectively, of an IAB node DU cell.
In an embodiment, the resource configuration information includes at least one of the following information of at least one cell or carrier of at least one DU of the IAB node: a first set of resource availability combinations, a first resource availability combination index position in the DCI, a first reference subcarrier spacing.
In an embodiment, the resource configuration information includes at least one of the following information for at least one beam or beam group of at least one serving cell of at least one MT of the IAB node, at least one cell or carrier of at least one DU of the IAB node: a first set of resource availability combinations; a location of a frequency domain resource availability combination index in the DCI; reference subcarrier spacing for availability indication.
In an embodiment, the frequency domain resource availability configuration information includes at least one of the following information: a first set of resource availability combinations for at least one cell or carrier of at least one DU for an IAB node; for at least one beam or beam group of at least one serving cell of at least one MT of an IAB node, a first resource availability combination index of at least one cell or carrier of at least one DU of the IAB node is located in the DCI; a first reference subcarrier spacing corresponding to at least one cell or carrier of at least one DU for an IAB node.
In an embodiment, the resource configuration information further includes at least one of the following information: the MT identifier, the MT beam group identifier, the DU cell identifier, the DU carrier identifier, the time interval for indicating the signaling to start to take effect and the number of time units for the second signaling to take effect.
In an embodiment, the beam identity is represented by at least one of the following information: reference Signal resource identifier, SSB index, Transmission Configuration Indicator (TCI) status identifier, Sounding Reference Signal (SRS) resource Indicator, and index.
In an embodiment, the beam or beam identification is associated with one of: reference signal, SSB related configuration, TCI status, sounding reference signal indication.
In one embodiment, the reference signal includes, but is not limited to, at least one of: CSI-RS, Channel State Information interference measurement Signal (CSI-IM), Phase-tracking Reference Signal (PTRS), Positioning Reference Signal (PRS), SRS.
In an embodiment, the SSB related configuration comprises at least one of: the SSB index, the SSB frequency domain position, the subcarrier interval used by the SSB, and the position of the half frame where the SSB is located.
In an embodiment, the relation between the SRS resource indication and the SRS resource is configured or predefined.
In an embodiment, the frequency domain resource availability of at least one time unit of a cell or carrier of an IAB node DU is indicated by a second signaling (the second signaling is MAC CE). Wherein, the MAC CE comprises at least one element as follows: at least one IAB node, MT, identity; a beam identification of the at least one IAB node MT, the at least one IAB node MT beam group identification; at least one IAB node DU identity; at least one cell identity of at least one IAB node DU, at least one carrier identity of at least one IAB node DU; at least one first resource availability combination index indicating availability of frequency domain resources in at least one time unit of a cell or carrier of an IAB node DU; the time interval for the second signaling to start to take effect and the time unit number for the second signaling to take effect.
In an embodiment, when the IAB node MT uses the beam identifier or beam group identifier of the MT in the MAC CE to identify the corresponding beam, the resource configuration information and the availability of the frequency domain resource indicate whether the IAB node DU is valid or invalid.
In one embodiment, the availability of frequency domain resources corresponds to a starting time slot of: and the earliest occurring IAB node DU slot intersecting with the IAB node MT slot in which the DCI or MAC CE is detected, or the earliest occurring IAB node DU slot separated by Y IAB node DU slots from the IAB node MT slot in which the DCI or MAC CE is detected, where Y is an integer greater than or equal to 0.
The first index indicated in the second signaling indicates to the IAB node DU the availability of frequency domain resources in at least one slot starting from the starting slot.
In one embodiment, Y is related to the time interval during which the second signaling is to take effect. For example, if the granularity of a time interval is a slot, then Y is equal to the time interval. If the granularity of the time interval is not a slot, the time interval needs to be converted into the number of slots Y.
In an embodiment, the first reference subcarrier spacing is taken as the subcarrier spacing corresponding to the time unit in the first resource availability indication.
In one embodiment, the first reference subcarrier spacing is taken as the subcarrier spacing corresponding to the frequency domain unit.
In an embodiment, if a first reference subcarrier interval corresponding to a cell or a carrier of an IAB node DU is greater than or equal to a subcarrier interval indicated by Soft symbol availability of the cell or the carrier of the IAB node DU, one element value in a first resource availability combination indicates an availability pattern of frequency domain resources in N first time units, or indicates an availability pattern of frequency domain resources in one second time unit, where the first time unit is a time unit corresponding to the first reference subcarrier interval, the second time unit is a time unit corresponding to the subcarrier interval indicated by Soft symbol availability, and N is a ratio of the first reference subcarrier interval to the subcarrier interval indicated by Soft symbol availability.
In an embodiment, the IAB node does not expect the first reference subcarrier spacing corresponding to the cell or carrier of the IAB node DU to be less than the subcarrier spacing indicated by the Soft symbol availability of the cell or carrier of the IAB node DU.
In an embodiment, if the availability of frequency domain resources in one time unit is indicated by multiple DCIs or MAC CEs. The IAB node expects the same availability of frequency domain resources for the same time unit as indicated by multiple DCIs or MAC CEs.
In an embodiment, the availability of frequency domain resources only indicates the availability of frequency domain resources corresponding to the Soft symbols.
In an embodiment, the availability of frequency domain resources only indicates the availability of frequency domain resources corresponding to the Hard symbol and the Soft symbol.
In an embodiment, the availability of frequency domain resources for the symbols of all attributes is indicated.
In an embodiment, an IAB node monitors a PDCCH indicating resource availability in at least one of the following search spaces: a common search space; a dedicated search space.
In an embodiment, for the same time-frequency resource of one cell or carrier of an IAB node DU, the IAB node does not expect to receive DCI or MAC CE indication of multiple parent nodes to indicate the availability of Soft symbols and/or the availability of frequency domain resources.
In an embodiment, for the same time-frequency resource of one cell or carrier of an IAB node DU, the IAB node does not expect the Soft symbol availability and/or frequency domain resource availability indicated by DCI or MAC CE of multiple parent nodes to be different.
Example 2: each element of the availability combination indicates at least one availability pattern index, one index corresponding to one availability pattern, indicating the availability of time-frequency resources.
The IAB node acquires resource configuration information from a network side, wherein the resource configuration information comprises a first signaling and a second signaling, and the first signaling provides at least one first resource availability combination and a corresponding relation between each first resource availability combination and a first index aiming at time-frequency resources; the second signaling is used to indicate at least one first index. The IAB node may determine a corresponding first resource availability combination from the first index of the second signaling indication, thereby determining the availability of time-frequency resources within the corresponding time cell indicated by the first resource availability combination. The second signaling comprises one of: DCI, MAC CE.
One first resource availability combination is used to indicate the availability of Soft symbols and the availability of frequency domain resources in at least one time unit of a cell or carrier of an IAB node DU.
For example, the second signaling reuses DCI format 2_5, reuses all signaling of the existing time domain resource availability indication and the combination of resource availability, and determines the availability of the time domain resource and the frequency domain resource according to the AI index in DCI format 2_5 by changing the meaning of the element value in the combination of resource availability. Or, defining a new second signaling, wherein the first index indicated in the second signaling is used for indicating the availability of the time domain resource and the availability of the frequency domain resource.
In an embodiment, the first index indicated in the second signaling indicates the availability of Soft symbols and the availability of frequency domain resources in one or more time units of a cell or a carrier of an IAB node DU, and each element value in the first resource availability combination corresponding to the first index indicates the availability of Soft symbols and frequency domain resources in one time unit.
In an embodiment, each element value in the first resource availability combination corresponding to the first index indicates the Soft symbol availability and the frequency domain resource availability for one time unit. Specifically, for a Hard symbol in a time unit, each element value indicates the availability of the frequency domain resource corresponding to the symbol, for example, indicating the availability of the frequency domain resource corresponding to the Hard symbol in each direction; for a Soft symbol in a time unit, the element value represents the availability of the symbol and its corresponding frequency domain resource, e.g., indicating the availability of the Soft symbol for each direction and the availability of the frequency domain resource corresponding to the Soft symbol for each direction.
Table 3 is a mapping table of elements of the first resource availability combination to time-frequency resource availability patterns. All usability patterns in table 3 constitute a set of usability patterns. For example, the time domain resource type of one time unit includes Hard DL, Soft F and Soft UL as shown in table 3, in case that the element value (i.e., the index of the availability pattern) in the first resource availability combination is 1, the frequency domain resource corresponding to the Hard DL symbol is indicated as available (the time domain symbol is Hard, although the Hard DL symbol is available). The availability of Soft UL and Soft F symbols and their corresponding frequency domain resources is not indicated. In case the element value (i.e. the index of the availability pattern) in the first resource availability combination is 2, the availability of the frequency domain resource corresponding to the Hard DL symbol is not indicated (the time domain symbol is Hard, of course the Hard DL symbol is available); soft UL symbols and their corresponding frequency domain resources are indicated as available; the availability of the Soft F symbol and its corresponding frequency domain resources is not indicated. And so on.
TABLE 3 mapping of elements of a first resource availability combination to time-frequency resource availability patterns
In an embodiment, each element value in the first resource availability combination corresponding to the first index indicates the Soft symbol availability and the frequency domain resource availability for one time unit. Specifically, one element value represents the availability of the Soft symbol and its corresponding frequency domain resource. Availability is not indicated for Hard symbols and unavailable symbols in time cells.
Table 4 is another mapping table of elements of the first resource availability combination and time-frequency resource availability patterns. All usability patterns in table 4 constitute a set of usability patterns. As shown in table 4, in the case that the element value (i.e., the index of the availability pattern) in the first resource availability combination is 1, the Soft symbol of the DL direction and its corresponding frequency domain resource are indicated as available, and no availability indication is made for the Soft symbol of the UL and F directions and its corresponding frequency domain resource. In case the element value (i.e. the index of the availability pattern) in the first resource availability combination is 2, the Soft symbol in UL direction and its corresponding frequency domain resource are indicated as available, and no availability indication is made for the Soft symbol in DL and F direction and its corresponding frequency domain resource. And so on.
TABLE 4 mapping of elements of a first resource availability combination to time-frequency resource availability patterns
In an embodiment, the IAB node acquires the frequency domain resource configuration information of the IAB node DU from the network side (CU or parent node of the IAB node or serving cell of the IAB node MT). Wherein the frequency domain resource configuration information includes at least one of: the frequency domain unit configuration information, the attribute configuration information of the frequency domain unit, and the frequency domain unit configuration information with undetermined availability.
In one embodiment, the frequency domain unit configuration information includes at least one of the following parameters: the size of the frequency domain units, the number of the frequency domain units, the initial position of the frequency domain units, the RIV of the frequency domain units, the identification of the frequency domain units and the subcarrier intervals corresponding to the frequency domain units.
In an embodiment, the properties of the frequency domain elements include at least one of: hard, soft, unusable.
In an embodiment, the IAB node determines a frequency domain unit corresponding to one carrier according to a predefined manner. Wherein the predefined information comprises one of: the frequency domain unit size, the number of frequency domain units, the relationship between the frequency domain unit size and the carrier size, and the relationship between the frequency domain unit number and the carrier size.
In an embodiment, the IAB node determines the size of the frequency domain unit according to a predefined relationship between the frequency domain unit size and the carrier size, and the carrier size.
In an embodiment, the IAB node determines the number of frequency domain elements according to a predefined relationship between the number of frequency domain elements and the carrier size, and the carrier size.
In an embodiment, a plurality of configurations of the relationship between the frequency domain unit size and the carrier size are predefined, and the IAB node determines the size of the frequency domain unit according to the carrier size and the configuration indication information. The configuration indication information is used for indicating which predefined configuration is adopted, and the configuration indication information is provided by the network side.
In an embodiment, a configuration of a relationship between the number of the plurality of sets of frequency domain units and the carrier size is predefined, and the IAB node determines the number of the frequency domain units according to the carrier size and the configuration indication information. The configuration indication information is used for indicating which predefined configuration is adopted, and the configuration indication information is provided by the network side.
In one embodiment, the frequency domain resource is one of: the frequency domain unit, the carrier wave and the BWP which are determined according to a predefined mode are configured to be a soft frequency domain unit, the set of the configured frequency domain units is configured to be a frequency domain unit corresponding to a soft symbol, and the frequency domain unit with the availability to be determined is available.
In an embodiment, an IAB node obtains indication information from a network side, wherein the indication information is used for indicating whether element values in a resource availability combination indicate only time domain resource availability or indicate availability of both time domain and frequency domain resources.
Example 3: a semi-static frequency domain resource allocation method is provided.
The network side (CU or parent node of IAB node or serving cell of IAB node MT) provides frequency domain resource configuration information of IAB node DU for the IAB node, and is used for the IAB node to determine frequency domain unit configuration information and/or attribute configuration information of the frequency domain unit of the IAB node DU. Wherein the frequency domain resource configuration information includes at least one of: frequency domain unit configuration information; attribute configuration information of the frequency domain unit; and availability of the frequency domain unit configuration information to be determined.
In an embodiment, the frequency domain resource configuration information includes at least one of the following information of at least one cell or carrier of at least one DU of the IAB node: frequency domain unit configuration information; attribute configuration information of the frequency domain unit; and availability of the frequency domain unit configuration information to be determined.
In an embodiment, the frequency domain resource configuration information includes at least one of the following information for at least one symbol direction of at least one cell or carrier of at least one DU of the IAB node: frequency domain unit configuration information; attribute configuration information of the frequency domain unit; and availability of the frequency domain unit configuration information to be determined.
In an embodiment, the frequency domain resource configuration information includes at least one of the following information of at least one symbol attribute of at least one cell or carrier of at least one DU of the IAB node: frequency domain unit configuration information; attribute configuration information of the frequency domain unit; and availability of the frequency domain unit configuration information to be determined.
In an embodiment, the frequency domain resource configuration information includes at least one of the following information of at least one symbol time domain resource type of at least one cell or carrier of at least one DU of the IAB node: frequency domain unit configuration information; attribute configuration information of the frequency domain unit; and availability of the frequency domain unit configuration information to be determined.
In one embodiment, the frequency domain unit configuration information includes at least one of the following parameters: a frequency domain unit size; the number of frequency domain units; a frequency domain unit starting position; a frequency domain unit RIV; frequency domain unit identification; and the subcarrier interval corresponding to the frequency domain unit.
In an embodiment, the frequency domain resource configuration information includes at least one set of frequency domain unit configuration information for one carrier of an IAB node DU cell.
In an embodiment, the frequency domain unit corresponding to the carrier is determined according to the frequency domain unit configuration information and the carrier parameter. Wherein, the carrier parameter comprises at least one of the following: the offset of the carrier starting position relative to the reference point a; a bandwidth of the carrier; subcarrier spacing of the carriers. Wherein the reference point a is a common reference point of the resource grid.
In an embodiment, the frequency-domain resource configuration information further includes a BWP configuration, and the frequency-domain unit corresponding to the BWP is determined according to the frequency-domain unit configuration and the BWP configuration. Wherein the BWP configuration comprises at least one of: the offset of the carrier starting position from the reference point a, the offset of the BWP starting position from the carrier starting position, the offset of the BWP starting position from the reference point a, the bandwidth of the BWP, and the subcarrier spacing of the BWP. Wherein the reference point a is a common reference point of the resource grid.
In an embodiment, the properties of the frequency domain elements include at least one of: hard (Hard), Soft (Soft), unusable (Unavailable).
In one embodiment, the properties of the frequency domain elements are configured by at least one of:
1) configuring one or more parameter combinations of { initial frequency domain unit, frequency domain unit number }, wherein each parameter combination corresponds to one attribute;
2) configuring one or more resource indication values RIV, wherein each RIV corresponds to one attribute;
3) the Bitmap (Bitmap) indicates two attributes of the frequency domain unit, for example, two values 0 and 1 of each bit of the Bitmap respectively correspond to the two attributes, and the two attributes can be any two of hard, soft and unavailable;
4) indicating three attributes of the frequency domain unit by using at least 2 bitmaps, for example, indicating two attributes of the frequency domain unit by using one Bitmap, wherein different bit values correspond to different attributes; another attribute is represented by another Bitmap, and the correspondence of the bit value to the attribute is predefined. If 3 bitmaps are used for indicating three attributes, the corresponding relation between the bit value and the attributes is predefined;
5) each frequency domain element index or set of indices corresponds to an attribute.
In one embodiment, the frequency domain unit whose availability is to be determined is configured by one of the following:
1) configuring one or more parameter combinations of { starting frequency domain unit, frequency domain unit number }, wherein the frequency domain unit indicated by the parameter combinations is a frequency domain unit with pending availability;
2) configuring one or more RIVs, wherein the frequency domain units indicated by the RIVs are frequency domain units with pending availability;
3) bitmaps indicate frequency domain units for which availability is pending. For example, when the bit value is 1, the frequency domain unit corresponding to the bit is a frequency domain unit with pending availability;
4) indicating the frequency domain unit index for which availability is pending.
In an embodiment, the availability of time-frequency resources corresponding to frequency domain units that are not configured to have an availability pending depends on the availability of symbols.
In one embodiment, if no attribute configuration of frequency domain cells is provided for the IAB node, the attributes of the frequency domain cells corresponding to the Hard symbol and the Soft symbol explicitly indicated as available are Hard, and the attributes of the frequency domain cells corresponding to the Soft symbol not explicitly indicated as available are Soft.
In one embodiment, if the attribute configuration of the frequency domain unit is not provided for the IAB node, the attribute of the frequency domain unit corresponding to the Hard symbol and the Soft symbol is one of the following: hard, soft.
In an embodiment, if the attribute configuration of the frequency domain unit is not provided for the IAB node, the attribute of the frequency domain unit corresponding to the unavailable symbol is unavailable.
In an embodiment, an IAB node DU considers a frequency domain unit to be available in case the frequency domain unit is configured to be hard.
In an embodiment, where a frequency-domain unit is configured to be soft, an IAB node DU considers the frequency-domain unit available if a condition is satisfied. For example, the parent node explicitly indicates by signaling that the frequency domain unit can be used, or the IAB node DU implicitly determines that the DU can use the frequency domain unit, or the IAB node DU determines that the IAB node MT does not use the frequency domain unit.
In an embodiment, an IAB node DU cannot use a frequency domain unit if the frequency domain unit is configured to be unavailable.
In one embodiment, if an IAB node DU transmits or receives a particular signal or channel on a frequency domain unit, the frequency domain unit is equivalently configured to be hard.
In an embodiment, the frequency domain resource configuration information includes a frequency domain resource configuration of at least one cell or carrier of at least one DU of the IAB node.
In an embodiment, the frequency domain resource configuration information includes a frequency domain resource configuration of at least one cell or carrier of at least one DU of the IAB node for at least one beam or beam group of at least one serving cell of at least one MT of the IAB node.
In an embodiment, the frequency domain resource configuration information further includes at least one of the following information: MT identity, MT beam group identity, DU cell identity, DU carrier identity.
In an embodiment, the resource configuration information and/or the frequency domain resource configuration information is carried by at least one of the following signaling: F1-AP; control information; MAC CE; radio Resource Control (RRC).
It should be noted that, in the foregoing embodiments, all the methods for determining the frequency domain unit corresponding to the carrier are also applicable to determining the frequency domain unit corresponding to the BWP, and only the carrier needs to be replaced by the BWP.
All the methods for determining the frequency domain unit attribute corresponding to the carrier in the above embodiments are also applicable to determining the frequency domain unit attribute corresponding to BWP, and only the carrier needs to be replaced by BWP.
All the methods for indicating the availability of the frequency domain unit of the carrier of the DU cell in the foregoing embodiments are also applicable to indicating the availability of the frequency domain unit of the BWP of the DU cell, and only the carrier needs to be replaced by the BWP.
Example 4: a method for determining time frequency resource availability is provided. The IAB node DU may determine the availability of time-frequency resources in one of the following ways.
Mode 1: under the condition that the time domain symbol and the frequency domain unit are both available, the time frequency resources corresponding to the time domain symbol and the frequency domain unit are available; when at least one of the time domain symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the time domain symbol and the frequency domain unit is unavailable; other time-frequency resources than the two cases in mode 1 are available if the conditions are met.
Mode 2: under the condition that at least one of the time domain symbol and the frequency domain unit is available and the other one is not unavailable, the time frequency resources corresponding to the time domain symbol and the frequency domain unit are available; when at least one of the time domain symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the time domain symbol and the frequency domain unit is unavailable; other time-frequency resources than the two cases in mode 2 are available if the conditions are met.
Mode 3: and under the condition that at least one of the time domain symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the time domain symbol and the frequency domain unit is unavailable. Other time-frequency resources than the two cases in mode 3 are available if the conditions are met.
Mode 4: and under the condition that the frequency domain unit is available and the time domain symbol is not unavailable, the time frequency resources corresponding to the time domain symbol and the frequency domain unit are available, and under the condition that at least one of the time domain symbol and the frequency domain unit is unavailable, the time frequency resources corresponding to the time domain symbol and the frequency domain unit are unavailable. Other time-frequency resources than the two cases in mode 4 are available if the conditions are met.
Mode 5: under the condition that the time domain symbol and the frequency domain unit are both available, the time frequency resources corresponding to the time domain symbol and the frequency domain unit are available; and under the condition that the time domain symbol is unavailable, the time frequency resources corresponding to the time domain symbol and the frequency domain unit are unavailable. Other time-frequency resources than the two cases in mode 5 are available if the condition is met.
Mode 6: under the condition that at least one of the time domain symbol and the frequency domain unit is available and the time domain symbol is not unavailable, the time frequency resources corresponding to the time domain symbol and the frequency domain unit are available; and under the condition that the time domain symbol is unavailable, the time frequency resources corresponding to the time domain symbol and the frequency domain unit are unavailable. Other time-frequency resources than the two cases in mode 6 are available if the conditions are met.
Mode 7: and when the time domain symbol is unavailable, the time frequency resources corresponding to the time domain symbol and the frequency domain unit are unavailable. Other time-frequency resources than the two cases in mode 7 are available if the condition is met.
Mode 8: and under the condition that the frequency domain unit is available and the time domain symbol is not unavailable, the time frequency resource corresponding to the time domain symbol and the frequency domain unit is available, and under the condition that the time domain symbol is unavailable, the time frequency resource corresponding to the time domain symbol and the frequency domain unit is unavailable. Other time-frequency resources than the two cases in mode 8 are available if the conditions are met.
In an embodiment, the time domain symbol being available means at least one of: the time domain symbol is configured as Hard, equivalent to being configured as Hard, is explicitly indicated as available.
In an embodiment, the time domain symbol being unavailable means that the time domain symbol is configured to be unavailable or indicated as unavailable by the DCII or the MAC CE.
In one embodiment, the frequency domain unit being available means at least one of: the frequency domain unit is configured as Hard, equivalent to being configured as Hard, is explicitly indicated as available, and the frequency domain unit is not configured to have an availability pending.
In an embodiment, a frequency domain element being unavailable means that the frequency domain element is configured to be unavailable or indicated as unavailable by DCI or MAC CE or RRC signaling.
In an embodiment, the time-frequency resource is available if a condition is satisfied, and the condition includes at least one of: the time frequency resource can be used by the IAB node DU through implicit judgment, and the time frequency resource can not be used by the IAB node MT through judgment of the IAB node DU.
In an embodiment, the time-frequency resource is available when a condition is satisfied, and specifically, the condition includes at least one of the following: the IAB node MT does not transmit or receive on the time frequency resource, the IAB node MT transmits or receives on the time frequency resource and its transmission or reception does not change because the IAB node DU uses the time frequency resource.
In an embodiment, the explicit indication comprises an indication by at least one of: f1AP, RRC, DCI, MAC CE.
Example 5: each element in the availability combination indicates at least one availability pattern index, one index corresponding to one availability pattern, indicating the availability of spatial domain resources. Each element in the second combination of resource availability provides beam information that may be used by the MT and/or beam information that may be used by the DU.
The IAB node acquires resource configuration information from a network side (CU or a father node of the IAB node or a service cell of the IAB node MT), wherein the resource configuration information comprises a first signaling and a second signaling, and the first signaling provides at least one second resource availability combination and the corresponding relation between each second resource availability combination and a second index aiming at spatial domain resources; the second signaling is used to indicate at least one second index. The IAB node may determine a corresponding second resource availability combination from a second index of the second signaling indication to determine availability of spatial domain resources within a corresponding time cell indicated by the second resource availability combination. The second signaling comprises one of: DCI, MAC CE.
In an embodiment, the resource configuration information further includes at least one of: RNTI for spatial domain availability indication, DCI payload size, search space set of listening PDCCH, serving cell identity of MT, cell identity of DU, location of second index (identity of second resource availability combination) in DCI, second reference subcarrier interval, first time interval for second signaling to start to take effect, second time interval for second signaling to start to take effect, BWP identity. Wherein the position of the second index in the DCI comprises at least one of: the second index corresponding to the MT is located in the DCI, the second index corresponding to the DU is located in the DCI, and the second indexes corresponding to the MT and the DU are located in the DCI.
In an embodiment, the second reference subcarrier spacing includes at least one of: reference subcarrier spacing corresponding to MT, reference subcarrier spacing corresponding to DU, and reference subcarrier spacing corresponding to MT and DU.
In an embodiment, the MAC CE is used to indicate the beams that the IAB node may or may not use. Wherein, the MAC CE comprises at least one of the following elements: the serving cell identity of the MT, the cell identity of the DU, the second resource availability combination index, the time interval for the second resource availability combination to come into effect, the BWP identity.
In an embodiment, each element in the second resource availability combination indicates at least one of: a beam that can be used or not used by an IAB node MT in a time unit, and a beam that can be used or not used by an IAB node DU in a time unit.
In an embodiment, each element in the second combination of resource availability comprises at least one beam.
In an embodiment, each element in the second resource availability combination includes a plurality of beam groups, respectively corresponding to at least one of: a beam group of an IAB node MT, a transmit beam group of an IAB node MT, a receive beam group of an IAB node MT, a beam group of an IAB node DU, a transmit beam group of an IAB node DU, and a receive beam group of an IAB node DU.
In an embodiment, the beam to which the signal or channel of the IAB node MT is configured is included in the beam indicated by the second signaling, or the beam to which the signal or channel of the IAB node MT is configured cannot include the beam indicated by the second signaling.
In an embodiment, the IAB node MT does not expect collision of the beam for which the signal or channel is configured with the beam indicated in the second signaling in the same time.
In an embodiment, if the beam on which the signal or channel is configured collides with the beam indicated in the second signaling within the same time period, the IAB node MT determines the beam used by the signal or channel according to a predetermined rule. The predetermined rules include determining the beam used by the signal or channel according to one of the following: the earlier detected signaling of the configuration signaling and the second signaling, the later detected signaling of the configuration signaling and the second signaling, the configuration signaling, and the second signaling.
In an embodiment, the beams used by the signals or channels of the IAB node MT are configured by at least one of the following signaling: RRC signaling, MAC CE, DCI.
In an embodiment, each beam pair applies a beam identity comprising at least one of: reference signal resource identification, SSB index, TCI state identification, SRS resource indication and index.
In an embodiment, the beam or beam identification is associated with one of: reference signal, SSB related configuration, TCI status, sounding reference signal indication.
In one embodiment, the reference signal includes, but is not limited to, at least one of: CSI-RS, CSI-IM, PTRS, PRS, SRS.
In an embodiment, the SSB related configuration comprises at least one of: the SSB index, the SSB frequency domain position, the subcarrier interval used by the SSB, and the position of the half frame where the SSB is located.
In an embodiment, the relation between the SRS resource indication and the SRS resource is configured or predefined. For example, the SRS resource indication corresponds to at least one SRS resource.
In an embodiment, if the cell of the IAB node MT or DU is configured with a supplemental uplink carrier, one second index in the DCI or MAC CE corresponds to two second resource availability combinations, corresponding to the TDD carrier and the supplemental uplink carrier, respectively.
In an embodiment, if the cell of the IAB node MT or DU is configured with the supplemental uplink carrier, one second index in the DCI or the MAC CE corresponds to one second resource availability combination, and the TDD carrier and the supplemental uplink carrier correspond to different elements of the second resource availability combination or different beams in one element, respectively.
In an embodiment, for an FDD cell of an IAB node MT or DU, one second index in DCI or MAC CE corresponds to two second resource availability combinations, corresponding to a downlink carrier and an uplink carrier, respectively.
In an embodiment, for an FDD cell of an IAB node MT or DU, one second index in DCI or MAC CE corresponds to one second combination of resource availability, and the downlink carrier and the uplink carrier correspond to different elements in the second combination of resource availability or different beams in one element.
In one embodiment, the availability of spatial domain resources corresponds to a starting timeslot of:
for the IAB node MT or DU, the starting timeslot corresponding to the availability of spatial domain resources is: an IAB node MT slot in which DCI or MAC CE is detected, or an IAB node MT slot that is separated by Y1 slots from the IAB node MT slot in which DCI or MAC CE is detected, or an earliest occurring IAB node DU slot that intersects the IAB node MT slot in which downlink control information is detected or the MAC CE is detected, or an earliest occurring IAB node DU slot that is separated by Y2 IAB node DU slots from the IAB node MT slot in which downlink control information is detected or the MAC CE is detected, and Y1 and Y2 are integers greater than or equal to 0.
In an embodiment, Y1 and Y2 relate to the first time interval and the second time interval, respectively, of the time interval during which the second signaling is to begin to take effect. For example, if the granularity of the time interval is a slot, then Y1 and Y2 are equal to the first time interval and the second time interval, respectively. If the granularity of the time interval is not a slot, the time interval needs to be converted into the slot numbers Y1 and Y2.
In an embodiment, an IAB node monitors a PDCCH indicating spatial resource availability in at least one of the following search spaces: a common search space, a dedicated search space.
It should be noted that, in all the above embodiments and examples, the IAB node is only an example, and the above scheme is also applicable to other nodes, for example, any type of wireless communication device such as a relay node, a base station, and the like, and the corresponding scheme can be obtained by replacing the IAB node with a corresponding device.
In all the embodiments and examples described above, the bandwidth part BWP is a subset of consecutive common resource blocks of a particular subcarrier spacing for the cell or carrier of the IAB node DU. The network side configures at least one BWP for the cell or carrier of the IAB node DU. The BWP configuration method for the cell or carrier of the IAB node DU adopts the BWP configuration method for the UE in the existing protocol.
In all of the above embodiments and examples, the combination index corresponds to at least one of the following identifications: a time domain resource availability combination index, a first resource availability combination index, a second resource availability combination index.
In the embodiment of the present application, a resource configuration method is further provided, where resource configuration information is sent to indicate a resource availability combination and indicate a combination index, and resource availability in both time-frequency domain and space-domain can be flexibly and comprehensively indicated, so that an IAB node determines resource availability according to the resource availability, and interference between a parent link and a child link is reduced. In this embodiment, the specific operations performed by the network side and the IAB node may refer to any of the above embodiments.
Fig. 4 is a flowchart of a resource allocation method according to an embodiment, and as shown in fig. 4, the method according to this embodiment includes step 210.
In step 210, resource configuration information is sent, where the resource configuration information includes a first signaling and a second signaling, the first signaling includes at least one resource availability combination, one resource availability combination corresponds to one combination index, and the second signaling is used to indicate at least one combination index.
In an embodiment, the resource configuration information may be used to determine at least one of: availability of frequency domain resources in at least one time unit; availability of symbols and availability of frequency domain resources in at least one time cell.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating an availability of frequency domain resources in at least one time unit.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of frequency domain resources in a corresponding time unit;
the elements correspond to at least one usability pattern.
In an embodiment, the elements in the first resource availability combination include at least one of elements of a first type, elements of a second type, and elements of a third type;
the first class of elements corresponds to K1 availability patterns, K1 availability patterns being associated with frequency domain resources corresponding to one of the following for a time unit: symbols of K1 directions, symbols of K1 attributes, and symbols of K1 time domain resource types;
the second type element corresponds to an availability pattern, and the availability pattern is associated with frequency domain resources corresponding to a time unit;
the third type of element corresponds to an availability pattern, and every K2 availability patterns are associated with a frequency domain resource corresponding to one of the following for one time unit: symbols of K2 directions, symbols of K2 attributes, and symbols of K2 time domain resource types;
wherein K1 is an integer greater than 0, and K2 is an integer greater than 0.
In an embodiment, the K3 elements in the first resource availability combination correspond to K3 availability patterns, the K3 availability patterns being associated with frequency domain resources corresponding to one of at least one time unit: symbols of K3 directions, symbols of K3 attributes, and symbols of K3 time domain resource types, wherein K3 is an integer greater than 0.
In an embodiment, the usability pattern is configured or predefined for at least one of:
indicating the availability of the frequency domain units corresponding to the starting frequency domain unit and the number of the frequency domain units;
indicating the availability of the frequency domain unit corresponding to the resource indication value RIV;
indicating availability of the frequency domain cells by bit values of a bitmap corresponding to the frequency domain cells;
indicating the availability of the frequency domain unit corresponding to the frequency domain unit index or index group;
indicating the availability of frequency domain units of a predetermined characteristic.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating an availability of symbols and an availability of frequency domain resources in at least one time unit.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of symbols in the corresponding time unit and the availability of frequency domain resources;
the elements correspond to at least one usability pattern.
In an embodiment, the availability pattern is configured or predefined for indicating the availability of symbols and the availability of frequency domain resources in one time unit according to at least one of: symbol attribute, symbol direction, time domain resource type.
In an embodiment, indicating the availability of symbols in time units and the availability of frequency domain resources comprises:
for a soft symbol contained in a time unit, indicating the availability of the soft symbol and the availability of frequency domain resources corresponding to the soft symbol;
for a hard symbol contained in a time cell, indicating the availability of frequency domain resources to which the hard symbol corresponds.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating the availability of time-frequency resources in at least one time unit.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of time-frequency resources in a corresponding time unit;
the elements correspond to at least one usability pattern.
In an embodiment, the availability pattern is configured or predefined for indicating the availability of time-frequency resources in a time unit according to one of:
indicating the availability of time-frequency resources by bit values of a bitmap corresponding to the time-frequency resource units, wherein one time-frequency resource unit comprises a symbol group in a time domain and a frequency domain unit in a frequency domain, and one symbol group comprises one of the following: a sign of one direction, a sign of one attribute, a sign of one time domain resource type;
and indicating the availability of the symbol group by a bit value of a first bitmap corresponding to the symbol group and indicating the availability of the frequency domain unit by a bit value of a second bitmap corresponding to the frequency domain unit, wherein the symbol group and the frequency domain unit are both indicated as available, the time-frequency resources corresponding to the symbol group and the frequency domain unit are available, the symbol group and the frequency domain unit are not both indicated as available, and the time-frequency resources corresponding to the symbol group and the frequency domain unit are unavailable or the availability is not indicated.
In an embodiment, the availability pattern belongs to a set of availability patterns, the set of availability patterns being included in the resource configuration information or being predefined.
In one embodiment, the set of usability patterns satisfies one of:
one distribution unit DU corresponds to one availability pattern set;
one cell or carrier of the DU corresponds to one availability pattern set;
for a beam or a beam group of the mobile terminal function MT, one DU corresponds to one availability pattern set;
for one beam or beam group of the MT, one cell or carrier of the DU corresponds to one availability pattern set.
In an embodiment, the combined index comprises a first index corresponding to a first resource availability combination;
in a case that a cell of the DU is configured with a supplementary uplink carrier, a first index of the second signaling indication corresponds to a first resource availability combination of the cell carrier and the supplementary uplink carrier, respectively; alternatively, the first and second electrodes may be,
the first index of the second signaling indication corresponds to a first resource availability combination, and the cell carrier and the supplemental uplink carrier correspond to different elements of the first resource availability combination, respectively.
In an embodiment, the combined index comprises a first index corresponding to a first resource availability combination;
for an FDD cell of the DU, a first index of the second signaling indication corresponds to a first resource availability combination of an uplink carrier and a downlink carrier, respectively; alternatively, the first and second electrodes may be,
the first index of the second signaling indication corresponds to a first resource availability combination, and the uplink carrier and the downlink carrier correspond to different elements of the first resource availability combination respectively.
In an embodiment, the resource configuration information further includes at least one of the following information: the method comprises the steps of monitoring a search space set of a physical downlink control channel PDCCH (physical downlink control channel), the position of a first index corresponding to a first resource availability combination in a second signaling, a first reference subcarrier interval, a DU identification, a cell identification of the DU, an MT identification, a cell identification of the MT, a beam group of the MT, a beam identification of the MT, a beam group identification of the MT, a time interval for the second signaling to start to take effect and the number of time units for the second signaling to take effect.
In an embodiment, the first resource availability combination satisfies one of:
configuring at least one first resource availability combination for one DU;
configuring at least one first resource availability combination for one cell of the DU;
configuring at least one first resource availability combination for one carrier of one DU;
configuring, for one beam or beam group of the MT, at least one first resource availability combination for one DU;
for one beam or beam group of one cell of the MT, one cell or carrier of the DU configures at least one first resource availability combination.
In an embodiment, the second signaling further comprises at least one of: MT identity, MT beam group identity, DU cell identity, DU carrier identity, time interval for the second signaling to become effective, and the number of time units for the second signaling to become effective.
In an embodiment, the first index corresponding to the first resource availability combination in the second signaling is used to indicate availability of frequency domain resources in at least one time unit starting from one of the following time slots: and the DU slot which intersects with the MT slot which detects the second signaling and appears earliest is separated from the MT slot which detects the second signaling by Ya DU slots and appears earliest DU slot, wherein Ya is an integer which is greater than or equal to 0.
In an embodiment, the first index corresponding to the first resource availability combination in the second signaling is used to indicate availability of symbols and availability of frequency domain resources in at least one time unit starting from one of the following time slots: the DU slot that intersects the MT slot in which the second signaling is detected and that occurs earliest is separated from the MT slot in which the second signaling is detected by a DU slot that occurs earliest by Yb number of DU slots, where Yb is an integer greater than or equal to 0.
In an embodiment, the subcarrier spacing corresponding to the resource allocation information is one of: a first reference subcarrier spacing, a subcarrier spacing indicating soft symbol availability, and a subcarrier spacing provided by DU resource configuration.
In an embodiment, an IAB node monitors a PDCCH indicating availability in at least one of the following search spaces: a common search space, a dedicated search space.
In an embodiment, the method further comprises:
step 220: sending frequency domain resource configuration information;
the frequency domain resource configuration information includes at least one of: frequency domain unit configuration information, attribute configuration information of the frequency domain units, and frequency domain unit configuration with undetermined availability;
wherein the frequency domain unit configuration information includes at least one of the following parameters: the method comprises the following steps of (1) obtaining the size of a frequency domain unit, the number of the frequency domain units, the initial position of the frequency domain unit, the RIV of the frequency domain unit, the identification of the frequency domain unit and the subcarrier interval corresponding to the frequency domain unit;
the attribute configuration information includes at least one of: hard, soft, unusable.
In an embodiment, the IAB node further determines a frequency domain unit corresponding to one carrier according to predefined information;
the predefined information includes one of: the frequency domain unit size, the number of frequency domain units, the relationship between the frequency domain unit size and the carrier size, and the relationship between the frequency domain unit number and the carrier size.
In one embodiment, the IAB node determines a frequency domain unit corresponding to one carrier according to predefined information, including:
under the condition that the predefined information comprises the relationship between the size of the frequency domain unit and the size of the carrier, determining the size of the frequency domain unit according to the size of the carrier and the relationship between the size of the carrier and the size of the frequency domain unit, and further determining the frequency domain unit corresponding to the carrier; alternatively, the first and second electrodes may be,
and under the condition that the predefined information comprises the relationship between the number of the frequency domain units and the size of the carrier, determining the number of the frequency domain units according to the size of the carrier and the relationship between the size of the carrier and the number of the frequency domain units, and further determining the frequency domain units corresponding to the carrier.
In an embodiment, the first resource availability combination is used to indicate the availability of at least one of the following frequency domain resources: the frequency domain unit comprises a frequency domain unit with soft attribute, a configured set of frequency domain units, a frequency domain unit corresponding to a symbol with soft attribute and not explicitly indicated as available symbol, a frequency domain unit corresponding to a symbol with soft attribute and explicitly indicated as available symbol and a frequency domain unit with undetermined availability.
In one embodiment, the method further comprises: determining or predefining a frequency domain cell property by at least one of:
each combination of parameters for the starting frequency domain unit and the number of frequency domain units corresponds to a frequency domain unit attribute;
each RIV corresponds to a frequency domain element attribute;
determining two attributes of the frequency domain unit through a bitmap, wherein the two attributes are any two of hard, soft and unavailable;
three properties of the frequency domain cells are determined by at least 2 bitmaps.
In an embodiment, the IAB node may determine the availability of time-frequency resources in a time unit according to the resource configuration information by one of:
under the condition that both the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
under the condition that at least one of the symbol and the frequency domain unit is available and the other one is not unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time-frequency resource is available under the condition that a set condition is met;
when the symbol is available and the frequency domain unit is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
when the frequency domain unit is available and the symbol is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
when the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when the availability of the symbol is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
and if the symbol is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and otherwise, the time-frequency resource is available under the condition that a set condition is met.
And if the symbol is not available, the time frequency resource corresponding to the symbol and the frequency domain unit is not available, and other time frequency resources are available under the condition of meeting set conditions.
And if the symbol is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and otherwise, the time-frequency resource is available under the condition that a set condition is met.
In an embodiment, the combination of resource availability includes a second combination of resource availability indicating at least one of: availability of beams for MT in at least one time unit and availability of beams for DU in at least one time unit.
In an embodiment, the element in the second resource availability combination is used to indicate at least one of: availability of beams of MT in the corresponding time unit, availability of beams of DU in the corresponding time unit;
the element corresponds to at least one beam or group of beams.
In one embodiment, the beam is associated with one of: reference signal, synchronous broadcast channel block SSB, SSB related configuration, transmission configuration indication TCI status, sounding reference signal indication.
In an embodiment, the resource configuration information further includes at least one of:
an RNTI indicated by spatial domain availability, a second signaling payload size, a search space set of a monitored PDCCH, a serving cell identifier of an MT, a cell identifier of a DU, a position of a second index corresponding to a second resource availability combination in a second signaling, a second reference subcarrier interval, a first time interval at which the second signaling starts to take effect, a second time interval at which the second signaling starts to take effect, a bandwidth part BWP identifier, and the number of time units at which the second signaling takes effect.
In an embodiment, the beam to which the signal or channel of the MT is configured is included in the beam indicated by the second signaling, or the beam to which the signal or channel of the MT is configured does not include the beam indicated by the second signaling.
In an embodiment, the combined index includes a second index corresponding to a second resource availability combination;
in case that the cell of the MT or DU is configured with a supplementary uplink carrier, the second index of the second signaling indication corresponds to a second resource availability combination of the cell carrier and the supplementary uplink carrier, respectively; alternatively, the first and second electrodes may be,
the second index of the second signaling indication corresponds to a second resource availability combination, and the cell carrier and the supplemental uplink carrier correspond to different elements of the second resource availability combination, respectively.
In an embodiment, the combined index includes a second index corresponding to a second resource availability combination;
for an FDD cell of an MT or DU, a second index of the second signaling indication corresponds to a second resource availability combination of an uplink carrier and a downlink carrier, respectively; alternatively, the first and second electrodes may be,
the second index of the second signaling indication corresponds to a second resource availability combination, and the uplink carrier and the downlink carrier correspond to different elements in the second resource availability combination respectively.
In an embodiment, a second index corresponding to a second resource availability combination in the second signaling is used to indicate availability of beams of MTs in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
In an embodiment, the second index corresponding to the second resource availability combination in the second signaling is used to indicate the availability of the beam of the DU in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
The embodiment of the application also provides a device for determining the availability of the resource. Fig. 5 is a schematic structural diagram of a resource availability determining apparatus according to an embodiment. As shown in fig. 5, the resource availability determination apparatus includes: an acquisition module 310 and an availability determination module 320.
An obtaining module 310, configured to obtain resource configuration information, where the resource configuration information includes a first signaling and a second signaling, where the first signaling includes at least one resource availability combination, and one resource availability combination corresponds to one combination index, and the second signaling is used to indicate at least one combination index;
an availability determination module 320 configured to determine availability of resources based on the resource configuration information.
The resource availability determining device of the embodiment indicates the resource availability combination and indicates the combination index through the resource configuration information, and can flexibly and comprehensively indicate the resource availability in a frequency domain or a space domain, so that the IAB node determines the resource availability according to the resource availability combination and reduces the interference between the parent link and the child link.
In an embodiment, determining the availability of the resource according to the resource configuration information includes at least one of:
determining availability of frequency domain resources in at least one time unit according to the resource configuration information;
and determining the availability of the symbols in at least one time unit and the availability of frequency domain resources according to the resource configuration information.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating an availability of frequency domain resources in at least one time unit.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of frequency domain resources in a corresponding time unit; the elements correspond to at least one usability pattern.
In an embodiment, the elements in the first resource availability combination include at least one of elements of a first type, elements of a second type, and elements of a third type.
The first class of elements corresponds to K1 availability patterns, the K1 availability patterns being associated with frequency domain resources corresponding to one of the following for a time unit: symbols in K1 directions, symbols in K1 attributes, symbols in K1 time domain resource types, and K1 is an integer greater than 0;
the second type element corresponds to an availability pattern, and the availability pattern is associated with frequency domain resources corresponding to a time unit;
the third type of element corresponds to an availability pattern, and every K2 availability patterns are associated with a frequency domain resource corresponding to one of the following for one time unit: symbols of K2 directions, symbols of K2 attributes, symbols of K2 time domain resource types, and K2 is an integer greater than 0.
In an embodiment, the K3 elements in the first resource availability combination correspond to K3 availability patterns, the K3 availability patterns being associated with frequency domain resources corresponding to one of the following in at least one time unit: symbols of K3 directions, symbols of K3 attributes, and symbols of K3 time domain resource types, wherein K3 is an integer greater than 0.
In an embodiment, the usability pattern is configured or predefined for at least one of:
indicating the availability of the frequency domain units corresponding to the starting frequency domain unit and the number of the frequency domain units;
indicating the availability of a frequency domain unit corresponding to a Resource Indication Value (RIV);
indicating availability of the frequency domain cells by bit values of a bitmap corresponding to the frequency domain cells;
indicating the availability of the frequency domain unit corresponding to the frequency domain unit index or index group;
indicating the availability of frequency domain units of a predetermined characteristic.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating an availability of symbols in at least one time unit and an availability of frequency domain resources.
In an embodiment, the elements in the first resource availability combination are used to indicate the availability of symbols and the availability of frequency domain resources in one time unit; one element corresponds to at least one usability pattern.
In an embodiment, the availability pattern is configured or predefined for indicating the availability of symbols and the availability of frequency domain resources in one time unit according to at least one of: symbol attribute, symbol direction, time domain resource type.
In an embodiment, indicating the availability of symbols in time units and the availability of frequency domain resources comprises: for a soft symbol contained in a time unit, indicating the availability of the soft symbol and the availability of frequency domain resources corresponding to the soft symbol;
for a hard symbol contained in a time cell, indicating the availability of frequency domain resources to which the hard symbol corresponds.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating the availability of time-frequency resources in at least one time unit.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of time-frequency resources in a corresponding time unit; the elements correspond to at least one usability pattern.
In an embodiment, the availability pattern is configured or predefined for indicating the availability of time-frequency resources in a time unit according to one of:
indicating the availability of time-frequency resources by bit values of a bitmap corresponding to the time-frequency resource units, wherein one time-frequency resource unit comprises a symbol group in a time domain and a frequency domain unit in a frequency domain, and one symbol group comprises one of the following: a sign of one direction, a sign of one attribute, a sign of one time domain resource type;
and indicating the availability of the symbol group by a bit value of a first bitmap corresponding to the symbol group and indicating the availability of the frequency domain unit by a bit value of a second bitmap corresponding to the frequency domain unit, wherein the symbol group and the frequency domain unit are both indicated as available, the time-frequency resources corresponding to the symbol group and the frequency domain unit are available, the symbol group and the frequency domain unit are not both indicated as available, and the time-frequency resources corresponding to the symbol group and the frequency domain unit are unavailable or the availability is not indicated. In an embodiment, the availability pattern belongs to a set of availability patterns, the set of availability patterns being included in the resource configuration information or being predefined.
The usability pattern set satisfies one of:
one DU corresponds to one availability pattern set;
one cell or carrier of the DU corresponds to one availability pattern set;
for a beam or set of beams of the MT, one DU corresponds to one set of availability patterns;
for one beam or beam group of the MT, one cell or carrier of the DU corresponds to one availability pattern set.
In an embodiment, the combined index comprises a first index corresponding to a first resource availability combination;
in a case that a cell of the DU is configured with a supplementary uplink carrier, a first index of the second signaling indication corresponds to a first resource availability combination of the cell carrier and the supplementary uplink carrier, respectively; alternatively, the first and second electrodes may be,
the first index of the second signaling indication corresponds to a first resource availability combination, and the cell carrier and the supplemental uplink carrier correspond to different elements of the first resource availability combination, respectively.
In one embodiment, the combined index includes a first index corresponding to a first resource availability combination;
for a Frequency Division Duplex (FDD) cell of the DU, a first index of the second signaling indication corresponds to a first resource availability combination of the uplink carrier and the downlink carrier, respectively; alternatively, the first and second electrodes may be,
the first index of the second signaling indication corresponds to a first resource availability combination, and the uplink carrier and the downlink carrier correspond to different elements of the first resource availability combination respectively.
In an embodiment, the resource configuration information further includes at least one of the following information: the size of a payload of a second signaling, an RNTI indicated by frequency domain availability, a search space set of a monitored PDCCH, a position of a first index corresponding to a first resource availability combination in the second signaling, a first reference subcarrier interval, a DU identifier, a cell identifier of the DU, an MT identifier, a cell identifier of the MT, a beam group of the MT, a beam identifier of the MT, a beam group identifier of the MT, a time interval when the second signaling starts to take effect, and the number of time units when the second signaling takes effect.
In one embodiment, a combination of resource availability satisfies one of:
configuring at least one first resource availability combination for one DU;
configuring at least one first resource availability combination for one cell of the DU;
configuring at least one first resource availability combination for one carrier of one DU;
configuring, for one beam or beam group of the MT, at least one first resource availability combination for one DU;
for one beam or beam group of one cell of the MT, one cell or carrier of the DU configures at least one first resource availability combination.
In an embodiment, the second signaling further comprises at least one of: MT identity, MT beam group identity, DU cell identity, DU carrier identity, time interval for the second signaling to become effective, and the number of time units for the second signaling to become effective.
In an embodiment, the first index corresponding to the first resource availability combination in the second signaling is used to indicate availability of frequency domain resources in at least one time unit starting from one of the following time slots: and the DU slot which intersects with the MT slot which detects the second signaling and appears earliest is separated from the MT slot which detects the second signaling by Ya DU slots and appears earliest DU slot, wherein Ya is an integer which is greater than or equal to 0.
In an embodiment, the first index corresponding to the first resource availability combination in the second signaling is used to indicate availability of symbols and availability of frequency domain resources in at least one time unit starting from one of the following time slots: the DU slot that intersects the MT slot in which the second signaling is detected and that occurs earliest is separated from the MT slot in which the second signaling is detected by a DU slot that occurs earliest by Yb number of DU slots, where Yb is an integer greater than or equal to 0.
In an embodiment, the subcarrier spacing corresponding to the resource allocation information is one of: a first reference subcarrier spacing, a subcarrier spacing indicating soft symbol availability, and a subcarrier spacing provided by DU resource configuration.
In one embodiment, the apparatus further comprises:
a monitoring module configured to monitor a PDCCH indicating availability in at least one of the following search spaces: a common search space, a dedicated search space.
In one embodiment, the apparatus further comprises:
a configuration acquisition module configured to acquire frequency domain resource configuration information;
the frequency domain resource configuration information includes at least one of: frequency domain unit configuration information, attribute configuration information of the frequency domain units, and frequency domain unit configuration with undetermined availability;
wherein the frequency domain unit configuration information includes at least one of the following parameters: the method comprises the following steps of (1) obtaining the size of a frequency domain unit, the number of the frequency domain units, the initial position of the frequency domain unit, the RIV of the frequency domain unit, the identification of the frequency domain unit and the subcarrier interval corresponding to the frequency domain unit;
the attribute configuration information includes at least one of: hard, soft, unusable.
In one embodiment, the apparatus further comprises:
a frequency domain unit determining module, configured to determine a frequency domain unit corresponding to a carrier according to predefined information;
the predefined information includes one of: the frequency domain unit size, the number of frequency domain units, the relationship between the frequency domain unit size and the carrier size, and the relationship between the frequency domain unit number and the carrier size.
In one embodiment, the frequency domain unit determination module is configured to:
under the condition that the predefined information comprises the relationship between the size of the frequency domain unit and the size of the carrier, determining the size of the frequency domain unit according to the size of the carrier and the relationship between the size of the carrier and the size of the frequency domain unit, and further determining the frequency domain unit corresponding to the carrier; alternatively, the first and second electrodes may be,
and under the condition that the predefined information comprises the relationship between the number of the frequency domain units and the size of the carrier, determining the number of the frequency domain units according to the size of the carrier and the relationship between the size of the carrier and the number of the frequency domain units, and further determining the frequency domain units corresponding to the carrier.
In an embodiment, the first resource availability combination is used to indicate the availability of at least one of the following frequency domain resources: the frequency domain unit comprises a frequency domain unit with soft attribute, a configured set of frequency domain units, a frequency domain unit corresponding to a symbol with soft attribute and not explicitly indicated as available symbol, a frequency domain unit corresponding to a symbol with soft attribute and explicitly indicated as available symbol and a frequency domain unit with undetermined availability.
In one embodiment, the apparatus further comprises:
an attribute determination module arranged to determine or predefine a frequency domain element attribute by at least one of:
each combination of parameters for the starting frequency domain unit and the number of frequency domain units corresponds to a frequency domain unit attribute;
each RIV corresponds to a frequency domain element attribute;
determining two attributes of the frequency domain unit through a bitmap, wherein the two attributes are any two of hard, soft and unavailable;
three properties of the frequency domain cells are determined by at least 2 bitmaps.
In one embodiment, the availability determination module 320 is configured to: determining availability of time-frequency resources in a time cell by one of:
under the condition that both the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
under the condition that at least one of the symbol and the frequency domain unit is available and the other one is not unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time-frequency resource is available under the condition that a set condition is met;
when the symbol is available and the frequency domain unit is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
when the frequency domain unit is available and the symbol is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
when the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when the availability of the symbol is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
and if the symbol is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and otherwise, the time-frequency resource is available under the condition that a set condition is met.
And if the symbol is not available, the time frequency resource corresponding to the symbol and the frequency domain unit is not available, and other time frequency resources are available under the condition of meeting set conditions.
And if the symbol is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and otherwise, the time-frequency resource is available under the condition that a set condition is met.
In an embodiment, the combination of resource availability includes a second combination of resource availability indicating at least one of: availability of beams for MT in at least one time unit and availability of beams for DU in at least one time unit.
In an embodiment, the element in the second resource availability combination indicates at least one of: availability of beams of MT in the corresponding time unit, availability of beams of DU in the corresponding time unit;
the element corresponds to at least one beam or group of beams.
In one embodiment, the beam is associated with one of: reference signal, SSB-related Configuration, Transmission Configuration Indication (TCI) status, sounding reference signal Indication.
In an embodiment, the resource configuration information further includes at least one of:
an RNTI indicated by spatial domain availability, a second signaling payload size, a search space set of a monitored PDCCH, a serving cell identifier of an MT, a cell identifier of a DU, a position of a second index corresponding to a second resource availability combination in a second signaling, a second reference subcarrier interval, a first time interval at which the second signaling starts to take effect, a second time interval at which the second signaling starts to take effect, a bandwidth part BWP identifier, and the number of time units at which the second signaling takes effect.
In an embodiment, the beam to which the signal or channel of the MT is configured is included in the beam indicated by the second signaling, or the beam to which the signal or channel of the MT is configured does not include the beam indicated by the second signaling.
In an embodiment, the combined index includes a second index corresponding to a second resource availability combination;
in case that the cell of the MT or DU is configured with a supplementary uplink carrier, the second index of the second signaling indication corresponds to a second resource availability combination of the cell carrier and the supplementary uplink carrier, respectively; alternatively, the first and second electrodes may be,
the second index of the second signaling indication corresponds to a second resource availability combination, and the cell carrier and the supplemental uplink carrier correspond to different elements of the second resource availability combination, respectively.
In an embodiment, the combined index includes a second index corresponding to a second resource availability combination;
for an FDD cell of an MT or DU, a second index of the second signaling indication corresponds to a second resource availability combination of an uplink carrier and a downlink carrier, respectively; alternatively, the first and second electrodes may be,
the second index of the second signaling indication corresponds to a second resource availability combination, and the uplink carrier and the downlink carrier correspond to different elements in the second resource availability combination respectively.
In an embodiment, the second index corresponding to the second resource availability combination in the second signaling is used to indicate the availability of beams of the MT in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
In an embodiment, the second index corresponding to the second resource availability combination in the second signaling is used to indicate the availability of the beam of the DU in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
The resource availability determination apparatus proposed in the present embodiment belongs to the same inventive concept as the resource availability determination method proposed in the above embodiments, and technical details that are not described in detail in the present embodiment may be referred to any of the above embodiments, and the present embodiment has the same advantageous effects as the execution of the resource availability determination method.
The embodiment of the application also provides a device for determining the availability of the resource. Fig. 6 is a schematic structural diagram of a resource allocation apparatus according to an embodiment. As shown in fig. 6, the resource allocation apparatus includes:
a configuration module 410 configured to send resource configuration information, where the resource configuration information includes a first signaling and a second signaling, where the first signaling includes at least one resource availability combination, and one resource availability combination corresponds to one combination index, and the second signaling is used to indicate at least one combination index.
The resource configuration device of this embodiment indicates the resource availability combination and indicates the combination index through the resource configuration information, and can flexibly and comprehensively indicate the resource availability in both time-frequency domain and space domain, so that the IAB node determines the resource availability according to the resource availability and reduces the interference between the parent link and the child link.
In one embodiment, the resource configuration information may be used to determine at least one of: availability of frequency domain resources in at least one time unit; availability of symbols and availability of frequency domain resources in at least one time cell.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating an availability of frequency domain resources in at least one time unit.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of frequency domain resources in a corresponding time unit;
the elements correspond to at least one usability pattern.
In an embodiment, the elements in the first resource availability combination include at least one of elements of a first type, elements of a second type, and elements of a third type;
the first class of elements corresponds to K1 availability patterns, K1 availability patterns being associated with frequency domain resources corresponding to one of the following for a time unit: symbols of K1 directions, symbols of K1 attributes, and symbols of K1 time domain resource types;
the second type element corresponds to an availability pattern, and the availability pattern is associated with frequency domain resources corresponding to a time unit;
the third type of element corresponds to an availability pattern, and every K2 availability patterns are associated with a frequency domain resource corresponding to one of the following for one time unit: symbols of K2 directions, symbols of K2 attributes, and symbols of K2 time domain resource types;
wherein K1 is an integer greater than 0, and K2 is an integer greater than 0.
In an embodiment, the K3 elements in the first resource availability combination correspond to K3 availability patterns, the K3 availability patterns being associated with frequency domain resources corresponding to one of at least one time unit: symbols of K3 directions, symbols of K3 attributes, and symbols of K3 time domain resource types, wherein K3 is an integer greater than 0.
In an embodiment, the usability pattern is configured or predefined for at least one of:
indicating the availability of the frequency domain units corresponding to the starting frequency domain unit and the number of the frequency domain units;
indicating the availability of the frequency domain unit corresponding to the resource indication value RIV;
indicating availability of the frequency domain cells by bit values of a bitmap corresponding to the frequency domain cells;
indicating the availability of the frequency domain unit corresponding to the frequency domain unit index or index group;
indicating the availability of frequency domain units of a predetermined characteristic.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating an availability of symbols and an availability of frequency domain resources in at least one time unit.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of symbols in the corresponding time unit and the availability of frequency domain resources;
the elements correspond to at least one usability pattern.
In an embodiment, the availability pattern is configured or predefined for indicating the availability of symbols and the availability of frequency domain resources in one time unit according to at least one of: symbol attribute, symbol direction, time domain resource type.
In an embodiment, indicating the availability of symbols in time units and the availability of frequency domain resources comprises:
for a soft symbol contained in a time unit, indicating the availability of the soft symbol and the availability of frequency domain resources corresponding to the soft symbol;
for a hard symbol contained in a time cell, indicating the availability of frequency domain resources to which the hard symbol corresponds.
In an embodiment, the resource availability combination comprises a first resource availability combination indicating the availability of time-frequency resources in at least one time unit.
In an embodiment, an element in the first resource availability combination is used to indicate the availability of time-frequency resources in a corresponding time unit;
the elements correspond to at least one usability pattern.
In an embodiment, the availability pattern is configured or predefined for indicating the availability of time-frequency resources in a time unit according to one of:
indicating the availability of time-frequency resources by bit values of a bitmap corresponding to the time-frequency resource units, wherein one time-frequency resource unit comprises a symbol group in a time domain and a frequency domain unit in a frequency domain, and one symbol group comprises one of the following: a sign of one direction, a sign of one attribute, a sign of one time domain resource type;
and indicating the availability of the symbol group by a bit value of a first bitmap corresponding to the symbol group and indicating the availability of the frequency domain unit by a bit value of a second bitmap corresponding to the frequency domain unit, wherein the symbol group and the frequency domain unit are both indicated as available, the time-frequency resources corresponding to the symbol group and the frequency domain unit are available, the symbol group and the frequency domain unit are not both indicated as available, and the time-frequency resources corresponding to the symbol group and the frequency domain unit are unavailable or the availability is not indicated.
In an embodiment, the availability pattern belongs to a set of availability patterns, the set of availability patterns being included in the resource configuration information or being predefined.
In one embodiment, the set of usability patterns satisfies one of:
one distribution unit DU corresponds to one availability pattern set;
one cell or carrier of the DU corresponds to one availability pattern set;
for a beam or a beam group of the mobile terminal function MT, one DU corresponds to one availability pattern set;
for one beam or beam group of the MT, one cell or carrier of the DU corresponds to one availability pattern set.
In an embodiment, the combined index comprises a first index corresponding to a first resource availability combination;
in a case that a cell of the DU is configured with a supplementary uplink carrier, a first index of the second signaling indication corresponds to a first resource availability combination of the cell carrier and the supplementary uplink carrier, respectively; alternatively, the first and second electrodes may be,
the first index of the second signaling indication corresponds to a first resource availability combination, and the cell carrier and the supplemental uplink carrier correspond to different elements of the first resource availability combination, respectively.
In an embodiment, the combined index comprises a first index corresponding to a first resource availability combination;
for an FDD cell of the DU, a first index of the second signaling indication corresponds to a first resource availability combination of an uplink carrier and a downlink carrier, respectively; alternatively, the first and second electrodes may be,
the first index of the second signaling indication corresponds to a first resource availability combination, and the uplink carrier and the downlink carrier correspond to different elements of the first resource availability combination respectively.
In an embodiment, the resource configuration information further includes at least one of the following information: the method comprises the steps of monitoring a search space set of a physical downlink control channel PDCCH (physical downlink control channel), the position of a first index corresponding to a first resource availability combination in a second signaling, a first reference subcarrier interval, a DU identification, a cell identification of the DU, an MT identification, a cell identification of the MT, a beam group of the MT, a beam identification of the MT, a beam group identification of the MT, a time interval for the second signaling to start to take effect and the number of time units for the second signaling to take effect.
In an embodiment, the first resource availability combination satisfies one of:
configuring at least one first resource availability combination for one DU;
configuring at least one first resource availability combination for one cell of the DU;
configuring at least one first resource availability combination for one carrier of one DU;
configuring, for one beam or beam group of the MT, at least one first resource availability combination for one DU;
for one beam or beam group of one cell of the MT, one cell or carrier of the DU configures at least one first resource availability combination.
In an embodiment, the second signaling further comprises at least one of: MT identity, MT beam group identity, DU cell identity, DU carrier identity, time interval for the second signaling to become effective, and the number of time units for the second signaling to become effective.
In an embodiment, the first index corresponding to the first resource availability combination in the second signaling is used to indicate availability of frequency domain resources in at least one time unit starting from one of the following time slots: and the DU slot which intersects with the MT slot which detects the second signaling and appears earliest is separated from the MT slot which detects the second signaling by Ya DU slots and appears earliest DU slot, wherein Ya is an integer which is greater than or equal to 0.
In an embodiment, the first index corresponding to the first resource availability combination in the second signaling is used to indicate availability of symbols and availability of frequency domain resources in at least one time unit starting from one of the following time slots: the DU slot that intersects the MT slot in which the second signaling is detected and that occurs earliest is separated from the MT slot in which the second signaling is detected by a DU slot that occurs earliest by Yb number of DU slots, where Yb is an integer greater than or equal to 0.
In an embodiment, the subcarrier spacing corresponding to the resource allocation information is one of: a first reference subcarrier spacing, a subcarrier spacing indicating soft symbol availability, and a subcarrier spacing provided by DU resource configuration.
In an embodiment, an IAB node monitors a PDCCH indicating availability in at least one of the following search spaces: a common search space, a dedicated search space.
In one embodiment, the apparatus further comprises:
a configuration information sending module configured to send frequency domain resource configuration information;
the frequency domain resource configuration information includes at least one of: frequency domain unit configuration information, attribute configuration information of the frequency domain units, and frequency domain unit configuration with undetermined availability;
wherein the frequency domain unit configuration information includes at least one of the following parameters: the method comprises the following steps of (1) obtaining the size of a frequency domain unit, the number of the frequency domain units, the initial position of the frequency domain unit, the RIV of the frequency domain unit, the identification of the frequency domain unit and the subcarrier interval corresponding to the frequency domain unit;
the attribute configuration information includes at least one of: hard, soft, unusable.
In an embodiment, the IAB node further determines a frequency domain unit corresponding to one carrier according to predefined information;
the predefined information includes one of: the frequency domain unit size, the number of frequency domain units, the relationship between the frequency domain unit size and the carrier size, and the relationship between the frequency domain unit number and the carrier size.
In one embodiment, the IAB node determines a frequency domain unit corresponding to one carrier according to predefined information, including:
under the condition that the predefined information comprises the relationship between the size of the frequency domain unit and the size of the carrier, determining the size of the frequency domain unit according to the size of the carrier and the relationship between the size of the carrier and the size of the frequency domain unit, and further determining the frequency domain unit corresponding to the carrier; alternatively, the first and second electrodes may be,
and under the condition that the predefined information comprises the relationship between the number of the frequency domain units and the size of the carrier, determining the number of the frequency domain units according to the size of the carrier and the relationship between the size of the carrier and the number of the frequency domain units, and further determining the frequency domain units corresponding to the carrier.
In an embodiment, the first resource availability combination is used to indicate the availability of at least one of the following frequency domain resources: the frequency domain unit comprises a frequency domain unit with soft attribute, a configured set of frequency domain units, a frequency domain unit corresponding to a symbol with soft attribute and not explicitly indicated as available symbol, a frequency domain unit corresponding to a symbol with soft attribute and explicitly indicated as available symbol and a frequency domain unit with undetermined availability.
In one embodiment, the method further comprises: determining or predefining a frequency domain cell property by at least one of:
each combination of parameters for the starting frequency domain unit and the number of frequency domain units corresponds to a frequency domain unit attribute;
each RIV corresponds to a frequency domain element attribute;
determining two attributes of the frequency domain unit through a bitmap, wherein the two attributes are any two of hard, soft and unavailable;
three properties of the frequency domain cells are determined by at least 2 bitmaps.
In an embodiment, the IAB node may determine the availability of time-frequency resources in a time unit according to the resource configuration information by one of:
under the condition that both the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
under the condition that at least one of the symbol and the frequency domain unit is available and the other one is not unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time-frequency resource is available under the condition that a set condition is met;
when the symbol is available and the frequency domain unit is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
when the frequency domain unit is available and the symbol is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
when the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when the availability of the symbol is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
and if the symbol is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and otherwise, the time-frequency resource is available under the condition that a set condition is met.
And if the symbol is not available, the time frequency resource corresponding to the symbol and the frequency domain unit is not available, and other time frequency resources are available under the condition of meeting set conditions.
And if the symbol is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and otherwise, the time-frequency resource is available under the condition that a set condition is met.
In an embodiment, the combination of resource availability includes a second combination of resource availability indicating at least one of: availability of beams for MT in at least one time unit and availability of beams for DU in at least one time unit.
In an embodiment, the element in the second resource availability combination is used to indicate at least one of: availability of beams of MT in the corresponding time unit, availability of beams of DU in the corresponding time unit;
the element corresponds to at least one beam or group of beams.
In one embodiment, the beam is associated with one of: reference signal, synchronous broadcast channel block SSB, SSB related configuration, transmission configuration indication TCI status, sounding reference signal indication.
In an embodiment, the resource configuration information further includes at least one of:
an RNTI indicated by spatial domain availability, a second signaling payload size, a search space set of a monitored PDCCH, a serving cell identifier of an MT, a cell identifier of a DU, a position of a second index corresponding to a second resource availability combination in a second signaling, a second reference subcarrier interval, a first time interval at which the second signaling starts to take effect, a second time interval at which the second signaling starts to take effect, a bandwidth part BWP identifier, and the number of time units at which the second signaling takes effect.
In an embodiment, the beam to which the signal or channel of the MT is configured is included in the beam indicated by the second signaling, or the beam to which the signal or channel of the MT is configured does not include the beam indicated by the second signaling.
In an embodiment, the combined index includes a second index corresponding to a second resource availability combination;
in case that the cell of the MT or DU is configured with a supplementary uplink carrier, the second index of the second signaling indication corresponds to a second resource availability combination of the cell carrier and the supplementary uplink carrier, respectively; alternatively, the first and second electrodes may be,
the second index of the second signaling indication corresponds to a second resource availability combination, and the cell carrier and the supplemental uplink carrier correspond to different elements of the second resource availability combination, respectively.
In an embodiment, the combined index includes a second index corresponding to a second resource availability combination;
for an FDD cell of an MT or DU, a second index of the second signaling indication corresponds to a second resource availability combination of an uplink carrier and a downlink carrier, respectively; alternatively, the first and second electrodes may be,
the second index of the second signaling indication corresponds to a second resource availability combination, and the uplink carrier and the downlink carrier correspond to different elements in the second resource availability combination respectively.
In an embodiment, a second index corresponding to a second resource availability combination in the second signaling is used to indicate availability of beams of MTs in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
In an embodiment, the second index corresponding to the second resource availability combination in the second signaling is used to indicate the availability of the beam of the DU in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
The resource allocation apparatus proposed in this embodiment and the resource allocation apparatus method proposed in the above embodiment belong to the same inventive concept, and technical details that are not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as performing the resource allocation apparatus method.
Fig. 7 is a schematic diagram of a hardware structure of a communication node according to an embodiment, as shown in fig. 7, the communication node provided in the present application includes a memory 52, a processor 51, and a computer program stored in the memory and running on the processor, and when the processor 51 executes the computer program, the resource availability determination method or the resource allocation method described above is implemented.
The communication node may also include a memory 52; the processor 51 in the communication node may be one or more, and fig. 7 illustrates one processor 51 as an example; the memory 52 is used to store one or more programs; the one or more programs are executed by the one or more processors 51, so that the one or more processors 51 implement the resource availability determination method or the resource configuration method as described in the embodiments of the present application.
The communication node further comprises: a communication device 53, an input device 54 and an output device 55.
The processor 51, the memory 52, the communication means 53, the input means 54 and the output means 55 in the communication node may be connected by a bus or other means, which is exemplified in fig. 7.
The input device 54 may be used to receive entered numeric or character information and to generate key signal inputs relating to user settings and function control of the communication node. The output device 55 may include a display device such as a display screen.
The communication means 53 may comprise a receiver and a transmitter. The communication device 53 is configured to perform information transceiving communication according to the control of the processor 51.
The memory 52, as a computer-readable storage medium, may be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the resource availability determination method according to the embodiments of the present application (for example, the obtaining module 310 and the availability determination module 320 in the resource availability determination device). The memory 52 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the communication node, and the like. Further, the memory 52 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 52 may further include memory located remotely from the processor 51, which may be connected to the communication node via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The present application further provides a storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method for determining resource availability or the method for configuring resources according to any of the present application is implemented.
The resource availability determining method comprises the following steps: acquiring resource configuration information, wherein the resource configuration information comprises a first signaling and a second signaling, the first signaling comprises at least one resource availability combination, one resource availability combination corresponds to one combination index, and the second signaling is used for indicating at least one combination index; and determining the availability of the resource according to the resource configuration information.
The resource allocation method comprises the following steps: the method comprises the steps of sending resource configuration information, wherein the resource configuration information comprises a first signaling and a second signaling, the first signaling comprises at least one resource availability combination, one resource availability combination corresponds to one combination index, and the second signaling is used for indicating at least one combination index.
The computer storage media of the embodiments of the present application may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer-readable storage medium may be, for example, but is not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), a flash Memory, an optical fiber, a portable CD-ROM, an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. A computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take a variety of forms, including, but not limited to: an electromagnetic signal, an optical signal, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, Radio Frequency (RF), etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
The above description is only exemplary embodiments of the present application, and is not intended to limit the scope of the present application.
It will be clear to a person skilled in the art that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a car mounted mobile station.
In general, the various embodiments of the application may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
Embodiments of the application may be implemented by a data processor of a mobile device executing computer program instructions, for example in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.
Any logic flow block diagrams in the figures of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on a memory. The memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, Read-Only Memory (ROM), Random-Access Memory (RAM), optical storage devices and systems (Digital versatile disks (DVD), Compact Disks (CD)), etc., computer-readable media can comprise non-transitory storage media, data processors can be of any type suitable to the local technical environment, such as, but not limited to, general purpose computers, special purpose computers, microprocessors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Programmable logic devices (FGPAs), and processors based on a multi-core processor architecture.
The foregoing has provided by way of exemplary and non-limiting examples a detailed description of exemplary embodiments of the present application. Various modifications and adaptations to the foregoing embodiments may become apparent to those skilled in the relevant arts in view of the drawings and the following claims without departing from the scope of the invention. Accordingly, the proper scope of the application is to be determined according to the claims.
Claims (32)
1. A method for resource availability determination, comprising:
acquiring resource configuration information, wherein the resource configuration information comprises a first signaling and a second signaling, the first signaling comprises at least one resource availability combination, one resource availability combination corresponds to one combination index, and the second signaling is used for indicating at least one combination index;
and determining the availability of the resource according to the resource configuration information.
2. The method of claim 1, wherein determining the availability of resources based on the resource configuration information comprises at least one of:
determining availability of frequency domain resources in at least one time unit according to the resource configuration information;
and determining the availability of the symbols in at least one time unit and the availability of frequency domain resources according to the resource configuration information.
3. The method of claim 2, wherein the resource availability combination comprises a first resource availability combination indicating availability of frequency domain resources in at least one time unit.
4. The method of claim 3, wherein an element in the first resource availability combination is used to indicate availability of frequency domain resources in a corresponding time unit;
the elements correspond to at least one usability pattern.
5. The method of claim 3, wherein the elements in the first resource availability combination comprise at least one of elements of a first type, elements of a second type, and elements of a third type;
the first class of elements corresponds to K1 availability patterns, K1 availability patterns being associated with frequency domain resources corresponding to one of the following for a time unit: symbols of K1 directions, symbols of K1 attributes, and symbols of K1 time domain resource types;
the second type element corresponds to an availability pattern, and the availability pattern is associated with frequency domain resources corresponding to a time unit;
the third type of element corresponds to an availability pattern, and every K2 availability patterns are associated with a frequency domain resource corresponding to one of the following for one time unit: symbols of K2 directions, symbols of K2 attributes, and symbols of K2 time domain resource types;
wherein K1 is an integer greater than 0, and K2 is an integer greater than 0.
6. The method of claim 3, wherein the K3 elements in the first combination of resource availability correspond to K3 availability patterns, the K3 availability patterns being associated with frequency domain resources corresponding to one of at least one time unit of: symbols of K3 directions, symbols of K3 attributes, and symbols of K3 time domain resource types, wherein K3 is an integer greater than 0.
7. The method according to claim 4, 5 or 6, wherein the usability pattern is configured or predefined for at least one of:
indicating the availability of the frequency domain units corresponding to the starting frequency domain unit and the number of the frequency domain units;
indicating the availability of the frequency domain unit corresponding to the resource indication value RIV;
indicating availability of the frequency domain cells by bit values of a bitmap corresponding to the frequency domain cells;
indicating the availability of the frequency domain unit corresponding to the frequency domain unit index or index group;
indicating the availability of frequency domain units of a predetermined characteristic.
8. The method of claim 2, wherein the resource availability combination comprises a first resource availability combination indicating availability of symbols and availability of frequency domain resources in at least one time unit.
9. The method of claim 8, wherein an element in the first resource availability combination is used to indicate availability of symbols and availability of frequency domain resources in a corresponding time unit;
the elements correspond to at least one usability pattern.
10. The method according to claim 9, wherein the availability pattern is configured or predefined for indicating the availability of symbols and the availability of frequency domain resources in one time unit according to at least one of: symbol attribute, symbol direction, time domain resource type.
11. The method of claim 8, wherein indicating availability of symbols in time units and availability of frequency domain resources comprises:
for a soft symbol contained in a time unit, indicating the availability of the soft symbol and the availability of frequency domain resources corresponding to the soft symbol;
for a hard symbol contained in a time cell, indicating the availability of frequency domain resources to which the hard symbol corresponds.
12. The method according to claim 1, wherein said combination of resource availability comprises a first combination of resource availability indicating the availability of time-frequency resources in at least one time unit.
13. The method according to claim 12, wherein an element in the first combination of resource availability is used to indicate the availability of time-frequency resources in a corresponding time unit;
the elements correspond to at least one usability pattern.
14. The method according to claim 13, wherein said availability pattern is configured or predefined for indicating the availability of time-frequency resources in a time unit according to one of:
indicating the availability of time-frequency resources by bit values of a bitmap corresponding to the time-frequency resource units, wherein one time-frequency resource unit comprises a symbol group in a time domain and a frequency domain unit in a frequency domain, and one symbol group comprises one of the following: a sign of one direction, a sign of one attribute, a sign of one time domain resource type;
and indicating the availability of the symbol group by a bit value of a first bitmap corresponding to the symbol group and indicating the availability of the frequency domain unit by a bit value of a second bitmap corresponding to the frequency domain unit, wherein the symbol group and the frequency domain unit are both indicated as available, the time-frequency resources corresponding to the symbol group and the frequency domain unit are available, the symbol group and the frequency domain unit are not both indicated as available, and the time-frequency resources corresponding to the symbol group and the frequency domain unit are unavailable or the availability is not indicated.
15. The method according to claim 2 or 12, wherein the resource configuration information further comprises at least one of the following information: the method comprises the steps of monitoring a search space set of a physical downlink control channel PDCCH (physical downlink control channel), the position of a first index corresponding to a first resource availability combination in a second signaling, a first reference subcarrier interval, a DU identification, a cell identification of the DU, an MT identification, a cell identification of the MT, a beam group of the MT, a beam identification of the MT, a beam group identification of the MT, a time interval for the second signaling to start to take effect and the number of time units for the second signaling to take effect.
16. The method according to claim 2 or 12, wherein the first combination of resource availability satisfies one of:
configuring at least one first resource availability combination for one DU;
configuring at least one first resource availability combination for one cell of the DU;
configuring at least one first resource availability combination for one carrier of one DU;
configuring, for one beam or beam group of the MT, at least one first resource availability combination for one DU;
for one beam or beam group of one cell of the MT, one cell or carrier of the DU configures at least one first resource availability combination.
17. The method of claim 3, wherein a first index corresponding to the first resource availability combination in the second signaling is used to indicate availability of frequency domain resources in at least one time unit starting from one of the following time slots: and the DU slot which intersects with the MT slot which detects the second signaling and appears earliest is separated from the MT slot which detects the second signaling by Ya DU slots and appears earliest DU slot, wherein Ya is an integer which is greater than or equal to 0.
18. The method of claim 8, wherein a first index corresponding to a first resource availability combination in the second signaling is used to indicate availability of symbols and availability of frequency domain resources in at least one time unit starting from one of the following time slots: the DU slot that intersects the MT slot in which the second signaling is detected and that occurs earliest is separated from the MT slot in which the second signaling is detected by a DU slot that occurs earliest by Yb number of DU slots, where Yb is an integer greater than or equal to 0.
19. The method of claim 1, further comprising: acquiring frequency domain resource configuration information;
the frequency domain resource configuration information includes at least one of: frequency domain unit configuration information, attribute configuration information of the frequency domain units, and frequency domain unit configuration with undetermined availability;
wherein the frequency domain unit configuration information includes at least one of the following parameters: the method comprises the following steps of (1) obtaining the size of a frequency domain unit, the number of the frequency domain units, the initial position of the frequency domain unit, the RIV of the frequency domain unit, the identification of the frequency domain unit and the subcarrier interval corresponding to the frequency domain unit;
the attribute configuration information includes at least one of: hard, soft, unusable.
20. The method according to claim 2 or 12, wherein the first resource availability combination is used to indicate the availability of at least one of the following frequency domain resources: the frequency domain unit comprises a frequency domain unit with soft attribute, a configured set of frequency domain units, a frequency domain unit corresponding to a symbol with soft attribute and not explicitly indicated as available symbol, a frequency domain unit corresponding to a symbol with soft attribute and explicitly indicated as available symbol and a frequency domain unit with undetermined availability.
21. The method of claim 19, further comprising: determining or predefining a frequency domain cell property by at least one of:
each combination of parameters for the starting frequency domain unit and the number of frequency domain units corresponds to a frequency domain unit attribute;
each RIV corresponds to a frequency domain element attribute;
determining two attributes of the frequency domain unit through a bitmap, wherein the two attributes are any two of hard, soft and unavailable;
three properties of the frequency domain cells are determined by at least 2 bitmaps.
22. The method of claim 2, wherein determining the availability of resources based on the resource configuration information comprises: determining availability of time-frequency resources in a time cell by one of:
under the condition that both the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
under the condition that at least one of the symbol and the frequency domain unit is available and the other one is not unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is available, under the condition that at least one of the symbol and the frequency domain unit is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time-frequency resource is available under the condition that a set condition is met;
when the symbol is available and the frequency domain unit is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and the other time frequency resources are available under the condition that a set condition is met;
when the frequency domain unit is available and the symbol is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when at least one of the symbol and the frequency domain unit is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
when the symbol and the frequency domain unit are available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when the availability of the symbol is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
when at least one of the symbol and the frequency domain unit is available and the symbol is not unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when the symbol is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
when the symbol is available, the time frequency resource corresponding to the symbol and the frequency domain unit is available, when the symbol is unavailable, the time frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and other time frequency resources are available under the condition that a set condition is met;
and if the symbol is unavailable, the time-frequency resource corresponding to the symbol and the frequency domain unit is unavailable, and otherwise, the time-frequency resource is available under the condition that a set condition is met.
23. The method of claim 1, wherein the combination of resource availability comprises a second combination of resource availability indicating at least one of: availability of beams for MT in at least one time unit and availability of beams for DU in at least one time unit.
24. The method of claim 23, wherein an element in the second resource availability combination is used to indicate at least one of: availability of beams of MT in the corresponding time unit, availability of beams of DU in the corresponding time unit;
the element corresponds to at least one beam or group of beams.
25. The method of claim 23, wherein the beam is associated with one of: reference signal, synchronous broadcast channel block SSB, SSB related configuration, transmission configuration indication TCI status, sounding reference signal indication.
26. The method of claim 23, wherein the resource configuration information further comprises at least one of:
an RNTI indicated by spatial domain availability, a second signaling payload size, a search space set of a monitored PDCCH, a serving cell identifier of an MT, a cell identifier of a DU, a position of a second index corresponding to a second resource availability combination in a second signaling, a second reference subcarrier interval, a first time interval at which the second signaling starts to take effect, a second time interval at which the second signaling starts to take effect, a bandwidth part BWP identifier, and the number of time units at which the second signaling takes effect.
27. The method according to claim 23, wherein the beam with configured MT signal or channel is included in the beam indicated by the second signaling, or the beam with configured MT signal or channel is not included in the beam indicated by the second signaling.
28. The method of claim 23, wherein a second index corresponding to a second resource availability combination in the second signaling is used to indicate availability of beams of MTs in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
29. The method of claim 23, wherein a second index corresponding to a second resource availability combination in the second signaling is used for indicating availability of beams of DUs in at least one time unit starting from one of the following time slots: the MT slot in which the second signaling is detected, the MT slot that is separated from the MT slot in which the second signaling is detected by Y1 slots, the earliest occurring DU slot that intersects the MT slot in which the second signaling is detected, and the earliest occurring DU slot that is separated from the MT slot in which the second signaling is detected by Y2 DU slots, wherein Y1 and Y2 are integers greater than or equal to 0.
30. A method for resource allocation, comprising:
the method comprises the steps of sending resource configuration information, wherein the resource configuration information comprises a first signaling and a second signaling, the first signaling comprises at least one resource availability combination, one resource availability combination corresponds to one combination index, and the second signaling is used for indicating at least one combination index.
31. A communication node comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the resource availability determination method according to any one of claims 1-29 or the resource configuration method according to claim 30 when executing the program.
32. A computer-readable storage medium, on which a computer program is stored, which program is executed by a processor to implement the resource availability determination method according to any one of claims 1-29 or the resource configuration method according to claim 30.
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| CN202110044734.XA CN112867161A (en) | 2021-01-13 | 2021-01-13 | Resource availability determination method, resource allocation method, communication node and storage medium |
| PCT/CN2022/071712 WO2022152190A1 (en) | 2021-01-13 | 2022-01-13 | Resource availability determination method, resource configuration method, communication node and storage medium |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022152190A1 (en) * | 2021-01-13 | 2022-07-21 | 中兴通讯股份有限公司 | Resource availability determination method, resource configuration method, communication node and storage medium |
| WO2022207002A1 (en) * | 2021-04-02 | 2022-10-06 | 华为技术有限公司 | Wireless communication method and apparatus |
| WO2023011671A1 (en) * | 2021-08-06 | 2023-02-09 | 中兴通讯股份有限公司 | Resource indication method and apparatus, node, and storage medium |
| WO2023050073A1 (en) * | 2021-09-28 | 2023-04-06 | Lenovo (Beijing) Limited | Methods and apparatuses for determining frequency domain resource |
| WO2023098549A1 (en) * | 2021-12-02 | 2023-06-08 | 上海朗帛通信技术有限公司 | Method and apparatus used in node for wireless communications |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11595811B2 (en) * | 2019-04-19 | 2023-02-28 | Qualcomm Incorporated | Supporting spatial division multiplexing operation in integrated access and backhaul networks |
| CN111083740A (en) * | 2019-08-15 | 2020-04-28 | 中兴通讯股份有限公司 | Method and device for determining resources, storage medium and electronic device |
| CN111901871A (en) * | 2020-04-09 | 2020-11-06 | 中兴通讯股份有限公司 | Resource allocation method, device, communication node and storage medium |
| CN112867161A (en) * | 2021-01-13 | 2021-05-28 | 中兴通讯股份有限公司 | Resource availability determination method, resource allocation method, communication node and storage medium |
-
2021
- 2021-01-13 CN CN202110044734.XA patent/CN112867161A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022152190A1 (en) * | 2021-01-13 | 2022-07-21 | 中兴通讯股份有限公司 | Resource availability determination method, resource configuration method, communication node and storage medium |
| WO2022207002A1 (en) * | 2021-04-02 | 2022-10-06 | 华为技术有限公司 | Wireless communication method and apparatus |
| WO2023011671A1 (en) * | 2021-08-06 | 2023-02-09 | 中兴通讯股份有限公司 | Resource indication method and apparatus, node, and storage medium |
| WO2023050073A1 (en) * | 2021-09-28 | 2023-04-06 | Lenovo (Beijing) Limited | Methods and apparatuses for determining frequency domain resource |
| WO2023098549A1 (en) * | 2021-12-02 | 2023-06-08 | 上海朗帛通信技术有限公司 | Method and apparatus used in node for wireless communications |
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