CN117998635A - Method and device for determining duplex operation area and user equipment - Google Patents

Method and device for determining duplex operation area and user equipment Download PDF

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Publication number
CN117998635A
CN117998635A CN202211388633.5A CN202211388633A CN117998635A CN 117998635 A CN117998635 A CN 117998635A CN 202211388633 A CN202211388633 A CN 202211388633A CN 117998635 A CN117998635 A CN 117998635A
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duplex operation
effective
area
frequency domain
downlink
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Inventor
周欢
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Priority to CN202211388633.5A priority Critical patent/CN117998635A/en
Priority to PCT/CN2023/129874 priority patent/WO2024099255A1/en
Publication of CN117998635A publication Critical patent/CN117998635A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

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

Abstract

The invention provides a method and a device for determining a duplex operation area and user equipment. The method is applied to user equipment, and comprises the following steps: acquiring duplex operation time domain and/or frequency domain position information; the area satisfying the following conditions is determined as an effective duplex operation area: is located in the duplex operation time domain and/or frequency domain position. The invention can determine the effective duplex operation area based on the duplex operation time domain and/or frequency domain position information.

Description

Method and device for determining duplex operation area and user equipment
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for determining a duplex operation area, and a user equipment.
Background
Due to the limitation of the uplink and downlink time slot proportion of the TDD (Time Division Duplexing, time division duplex) system, the transmission delay of the TDD system is larger. In order to reduce the implementation complexity of the base station, the transmission directions of all frequency domain resources of one TDD carrier at the same time are the same, and the uplink or downlink is the same, that is, the uplink and downlink time slot ratio of different frequency domain resources of one TDD carrier cannot be flexibly configured.
Along with diversification of services, especially considering the service requirements of the vertical industry, the uplink and downlink transmission requirements of different services are different, and the single uplink and downlink time slot ratio cannot meet the requirements of different services.
Based on the above two points, the complexity of the base station implementation is considered, and a SBFD (Subband Full Duplex, full duplex of sub-bands) solution is presented, namely, different sub-bands of the same carrier adopt different uplink and downlink time slot ratios.
For SBFD, there may be different forms, as shown in fig. 1, where Slot n is a pure DL symbol, and does not include an uplink subband, and uplink transmission is not allowed; an uplink sub-band is added in a time Slot Slot n+1/n+2/n+3 on the basis of DL symbols, UE is allowed to transmit uplink on the uplink sub-band, and gNB is allowed to transmit downlink on the position except the uplink sub-band; the slot n+4 is a pure UL symbol, and uplink transmission of the UE can be allowed to be performed at the frequency domain position of slot n+4. The time slot may have symbols D (for downlink transmission) and U (for uplink transmission), and flexible symbol X (for downlink or uplink transmission), and may also be used as a switching time for downlink to uplink switching.
In the context of duplex operation, how to determine an effective duplex operation area is a technical problem that needs to be solved in the art.
Disclosure of Invention
The method, the device and the user equipment for determining the duplex operation area can determine the effective duplex operation area based on the duplex operation time domain and/or frequency domain position information.
In a first aspect, the present invention provides a method for determining a duplex operation area, where the method is applied to a user equipment, the method includes:
Acquiring duplex operation time domain and/or frequency domain position information;
the area satisfying the following conditions is determined as an effective duplex operation area:
is located in the duplex operation time domain and/or frequency domain position.
Optionally, the determined effective duplex operation area also needs to satisfy the following conditions:
The symbols at the time domain position of the duplex operation are downlink symbols or flexible symbols configured by high-layer signaling, namely effective duplex operation symbols.
Optionally, the determined effective duplex operation region further needs to satisfy at least one of the following conditions:
the duplex operation uplink frequency domain position in the flexible symbol has no dynamic downlink scheduling;
and dynamic uplink scheduling does not exist in the downlink frequency domain position of the duplex operation in the flexible symbol.
Optionally, the acquiring duplex operation time domain and/or frequency domain location information includes: and acquiring duplex operation time domain and/or frequency domain position information configured and/or dynamically indicated by the high-level signaling.
Optionally, if the obtained duplex operation time domain and/or frequency domain position of the dynamic indication is different from the duplex operation time domain and/or frequency domain position of the higher layer signaling configuration, when determining the effective duplex operation area, the duplex operation time domain and/or frequency domain position information of the dynamic indication is used as the reference.
Optionally, the method further comprises:
and when the duplex operation time domain and/or the frequency domain position of the high-level signaling configuration in the time slot is overlapped with the uplink symbol, determining the area where all symbols positioned in the duplex operation time domain in the time slot are positioned as an ineffective duplex operation area.
Optionally, the non-effective duplexing operation region is a region other than the effective duplexing operation region.
Optionally, the method further comprises:
acquiring downlink symbol or flexible symbol information indicated by a time slot format indication SFI;
The determined effective duplex operating region also needs to satisfy the following conditions: the symbols at the time domain position of the duplex operation are downlink symbols or flexible symbols indicated by SFI.
Optionally, the method further comprises:
the region between the first effective duplex operation symbol and the last effective duplex operation symbol is determined as a section of effective duplex operation region.
Optionally, if the determined effective duplex operation area is preceded or followed by an ineffective duplex operation area, determining an area excluding a transition time in the effective duplex operation area as an actual effective duplex operation area, where the transition time is preconfigured or is a default value.
Optionally, if the downlink symbol or flexible symbol region has downlink dynamic scheduling and overlaps with the duplex operation uplink frequency domain position, the method further comprises:
and determining the area which excludes downlink dynamic scheduling and overlaps with the uplink frequency domain position of the duplex operation in the effective duplex operation area as an effective duplex operation area.
Optionally, if there is uplink active scheduling in the non-duplex operation uplink frequency domain position of the flexible symbol region, the method further includes:
And determining the area with uplink dynamic scheduling at the position of the uplink frequency domain of the non-duplex operation of the flexible symbol area as an effective duplex operation area.
Optionally, if there are multiple effective duplex operating regions, one or more effective duplex operating regions are reserved according to one of the following principles:
principle 1: reserving an effective duplex operation area with dynamic scheduling in the duplex operation uplink frequency domain position as a high priority;
principle 2: reserving one or more effective duplex operating regions that are temporally earlier;
Principle 3: one or more effective duplex operation areas with longer length are reserved.
In a second aspect, the present invention provides an apparatus for determining a duplex operation area, where the apparatus is located in a user equipment, and the apparatus includes:
the acquisition unit is used for acquiring the duplex operation time domain and/or frequency domain position information;
A determining unit configured to determine, as an effective duplex operation area, an area satisfying the following condition: is located in the duplex operation time domain and/or frequency domain position.
In a third aspect, the present invention provides a user equipment, the user equipment comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of determining the duplex operation region described above.
In a fourth aspect, the present invention provides a chip comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of determining the duplex operation region described above.
In a fifth aspect, the present invention provides a computer readable storage medium storing computer instructions that when executed by a processor implement the above-described method of determining a duplex operation area.
The method, the device and the user equipment for determining the duplex operation area can determine the effective duplex operation area based on the duplex operation time domain and/or frequency domain position information, thereby meeting the actual requirement that different sub-bands of the same carrier adopt different uplink and downlink time slot ratios.
Drawings
FIG. 1 is a diagram illustrating symbol patterns in each time slot at SBFD;
FIGS. 2-3 are frame structure diagrams of NR systems;
FIGS. 4-8 are diagrams of slot formats in NR systems;
FIG. 9 is a flow chart of a method for determining a duplex operation area according to an embodiment of the invention;
Fig. 10 is a schematic structural diagram of a duplex operation area determining apparatus according to an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
First, description will be made on contents related to a slot format according to an embodiment of the present invention.
As shown in fig. 2 and 3, in a Radio frame with a time domain length of 10ms, each Radio frame is divided into 10 equally sized subframes with a length of 1ms, and each subframe may include a plurality of slots due to different subcarrier intervals, each slot is formed by a certain number of symbols, and the number of symbols is determined by a CP (Cyclic Prefix) type.
When the higher layer signaling in NR configures the cell-level slot format, the reference SCS (sub-CARRIER SPACE, subcarrier spacing) μ ref, pattern 1 and optional pattern 2 are configured. The pattern 1 and the pattern 2 together include a timeslot configuration period p+p 2, where the pattern 1 includes a downlink timeslot number d slots, a downlink symbol number d sym after the downlink timeslot, an uplink timeslot number u slots, and an uplink symbol number u sym before the uplink timeslot. The pattern 2 contains the above elements, and the values can be different.
Fig. 2 is a schematic diagram of only pattern 1, 15khz with reference to SCS and 10ms for p.
Fig. 3 is a schematic diagram of the configuration pattern 1 and pattern 2, with reference to 15khz, 4ms for p and 6ms for p 2.
Compared with the special subframe structure of LTE, which is a fixed number of 10 downlink, GP (Guard Period) and uplink symbols, SF (Slot Format) is introduced into NR, and the number of downlink (denoted by "D"), flexible (denoted by "F") and uplink (denoted by "U") symbols in a certain Slot is included. The SF contains three configuration approaches: the SFI (Slot Format Indication ) is sent dynamically to a group of UEs using higher layer signaling cell level RRC (Radio Resource Control ) signaling configuration, using UE-specific RRC signaling configuration, or using PDCCH (Physical Downlink Control Channel ), dynamic slot format indication (DYNAMIC SFI). The SFI information carried on the PDCCH may indicate the format of one or more slots on one or more carriers. After the UE monitors the SFI, the UE obtains the index information and the index points to a UE-specific table, so that it can know which symbols in the slot are "U (uplink)", which symbols are "D (downlink)", and which symbols are "F (flexible)". The UE-specific table is configured and combined from the "single slot format" table. The "single slot format" table contains all the slot formats (less than 256) that can be supported in the NR. It has been determined that the slot format in the "single slot format" table contains at most two D/U (downlink/uplink) switch points per slot.
As shown in fig. 4-6, there are 0 switch points in a slot, where there are 14 downlink symbols in fig. 4, 14 uplink symbols in fig. 5, and 14 flexible symbols in fig. 6.
As shown in fig. 7, 1D/U switching point in a slot, the slot starts with 0 or more downlink symbols and ends with 0 or more uplink symbols, and the middle is a flexible symbol; and at least one flexible symbol, and one downlink or one uplink symbol.
As shown in fig. 8, 2D/U switching points in a slot, the first 7 symbols of the slot start from 0 or more downlink symbols and end from at least 1 uplink symbol in symbol 6, with a flexible symbol in the middle; the last 7 symbols of the slot start with 0 or more downlink symbols, end with 0 or more uplink symbols, and middle with 0 or more flexible symbols.
The embodiment of the invention provides a method for determining a duplex operation area, which is applied to user equipment, as shown in fig. 9, and comprises the following steps:
s11, acquiring duplex operation time domain and/or frequency domain position information.
S12, determining an area meeting the following conditions as an effective duplex operation area:
is located in the duplex operation time domain and/or frequency domain position.
The method for determining the duplex operation area provided by the embodiment of the invention can determine the effective duplex operation area based on the duplex operation time domain and/or frequency domain position information, thereby meeting the actual requirement that different sub-bands of the same carrier adopt different uplink and downlink time slot ratios.
Further, the determined effective duplex operation area also needs to satisfy the following conditions:
The symbols at the time domain position of the duplex operation are downlink symbols or flexible symbols configured by high-layer signaling, namely effective duplex operation symbols.
Further, the determined effective duplex operating region also needs to satisfy at least one of the following conditions:
the duplex operation uplink frequency domain position in the flexible symbol has no dynamic downlink scheduling;
and dynamic uplink scheduling does not exist in the downlink frequency domain position of the duplex operation in the flexible symbol.
The uplink frequency domain position of the duplex operation refers to a frequency domain part in the duplex operation symbol, which can be used for uplink transmission of the UE, and the downlink frequency domain position of the duplex operation refers to a downlink frequency domain part in the duplex operation symbol, which can be used for downlink transmission of the gNB.
Optionally, the acquiring duplex operation time domain and/or frequency domain location information includes: and acquiring duplex operation time domain and/or frequency domain position information configured and/or dynamically indicated by the high-level signaling.
And if the obtained duplex operation time domain and/or frequency domain position of the dynamic indication is different from the duplex operation time domain and/or frequency domain position of the high-layer signaling configuration, when the effective duplex operation area is determined, taking the duplex operation time domain and/or frequency domain position information of the dynamic indication as the reference.
Optionally, when the duplex operation time domain and/or the frequency domain position configured by the higher layer signaling in the time slot overlap with the uplink symbol, determining the area where all symbols in the time slot in the duplex operation time domain are located as a non-effective duplex operation area. Wherein the non-effective duplex operation region is a region other than the effective duplex operation region.
Optionally, the method further comprises:
acquiring downlink symbol or flexible symbol information indicated by a time slot format indication SFI;
The determined effective duplex operating region also needs to satisfy the following conditions: the symbols at the time domain position of the duplex operation are downlink symbols or flexible symbols indicated by SFI.
Optionally, the method further comprises:
the region between the first effective duplex operation symbol and the last effective duplex operation symbol is determined as a section of effective duplex operation region.
Optionally, if the determined effective duplex operation area is preceded or followed by an ineffective duplex operation area, determining an area excluding a transition time in the effective duplex operation area as an actual effective duplex operation area, where the transition time is preconfigured or is a default value.
Optionally, if the downlink symbol or flexible symbol region has downlink dynamic scheduling and overlaps with the duplex operation uplink frequency domain position, the method further comprises:
and determining the area which excludes downlink dynamic scheduling and overlaps with the uplink frequency domain position of the duplex operation in the effective duplex operation area as an effective duplex operation area.
Optionally, if there is uplink active scheduling in the non-duplex operation uplink frequency domain position of the flexible symbol region, the method further includes:
And determining the area with uplink dynamic scheduling at the position of the uplink frequency domain of the non-duplex operation of the flexible symbol area as an effective duplex operation area.
The above-mentioned duplexing may be subband full duplexing (no overlapping subbands) or full duplexing (frequency domain positions may overlap), and the following embodiments are described by taking subband full duplexing (SBFD) as an example.
The method for determining the duplex operation area according to the present invention will be described in detail with reference to specific embodiments.
Example 1
In this embodiment, the base station provides the UE with only SBFD time domain positions of the higher layer signaling configuration.
In this scenario, the determined valid SBFD symbols need to meet the following conditions: and the dynamic downlink scheduling is positioned at SBFD time domain positions of the high-layer signaling configuration, is a downlink symbol or a flexible symbol of the high-layer signaling configuration and a downlink symbol or a flexible symbol (if any) indicated by SFI information, and corresponds to the dynamic downlink scheduling without SBFD frequency domain positions in the downlink symbol or the flexible symbol and corresponds to the dynamic uplink scheduling without SBFD frequency domain positions in the flexible symbol.
At this time, the area between the first SBFD valid symbols and the last SBFD valid symbols in succession in the same slot is determined as a segment of valid SBFD area.
Alternatively, the manner in which the higher layer signaling configuration SBFD is configured to the time domain location may be one of the following:
time domain positions are configured SBFD based on the period of the TDD common;
The time domain position is configured SBFD based on the reference SCS of the TDD common;
the SBFD positions are configured in a mode of time slot number plus symbol number;
the SBFD positions are configured per slot, indicating the number of symbols starting from the first symbol 0 to the last within each slot SBFD.
The following description is given in terms of a case when the base station indicates downlink symbols or flexible symbol information to the UE through the SFI.
Case 1: the downlink symbol or flexible symbol region indicated by SFI is smaller than SBFD time domain region
When the uplink sub-band time domain configured by the high-layer signaling enables the full time slot or the partial time slot and the subsequent high-layer signaling or the SFI sets the partial flexible symbol as the uplink symbol, the UE can carry out symbol level modification according to the high-layer signaling or the SFI instruction to determine the uplink sub-band which is actually effective. Wherein, the uplink sub-band refers to the duplex operation uplink frequency domain position.
Alternatively, when SBFD time domain locations have only higher layer signaling configurations and are interrelated with dedicated signaling, in determining the valid SBFD region, this may be performed with reference to the implementation in this embodiment.
Specifically, the UE may determine the actual effective uplink sub-band according to one of the following schemes, or according to one of the schemes 1 and 2 and one of the schemes 3 and 4 (as in table 1 for example):
Scheme 1: validating all downlink symbols or uplink subbands in flexible symbols, and not validating uplink subbands in all uplink symbols, wherein one or more symbols of the uplink symbols have a pre-configured or default transition time;
scheme 2: according to the number of symbols (i.e. reserved gaps) which are not effective before the uplink symbol indicated by the SFI or configured by the high-level signaling, downlink symbols or flexible symbols except the symbols which are not effective in the uplink sub-band are effective; that is, if the determined valid SBFD area is preceded by a non-valid SBFD area, then the area within the segment of valid SBFD area excluding the transition time, which is either pre-configured or a default value, is determined to be the actual valid SBFD area.
Scheme 3: according to the number of symbols (i.e. reserved gap) which are indicated by the SFI or are not validated by the default downlink symbols, validating the downlink symbols or flexible symbol symbols except the symbols which are not validated by the uplink sub-band; that is, if the determined valid SBFD area is followed by a non-valid SBFD area, the area of the segment of valid SBFD area excluding the transition time, which is preconfigured or a default value, is determined as the actual valid SBFD area.
Scheme 4: and validating the uplink sub-bands in all downlink symbols or flexible symbol symbols, and not validating the uplink sub-bands in all uplink symbols, wherein one or more symbols in front of the downlink symbols have a pre-configured or default conversion time.
It should be noted that, in the embodiment of the present invention, all relevant portions related to gap, that is, after determining the SBFD area, the above schemes 1,2, 3, and 4 may be adopted, which are not listed one by one later.
TABLE 1
Case 2: the downlink symbol or flexible symbol area indicated by SFI is larger than or equal to SBFD time domain area
When the higher layer signaling SBFD indicates a symbol level, if the SFI indicates that the downlink symbol or the flexible symbol area is larger than the uplink sub-band, such as all downlink symbols, the UE may determine the actually effective uplink sub-band according to one of the schemes 1, 2, and 3, or according to one of the schemes 1 and 2 and 3 (as shown in table 2 for example)
TABLE 2
Alternatively, when there are 2 segments of the downlink symbol or flexible symbol region indicated by the SFI, the valid SBFD symbols (as exemplified in tables 3 and 4) are determined according to the following principle:
when the downlink symbol or flexible symbol area is larger than or equal to SBFD area, the SBFD area is used as the reference;
When the downlink symbol or flexible symbol area is smaller than SBFD area, the downlink symbol or flexible symbol area is used as the reference, and the condition of multiple sections can occur at the moment;
When one section of the downlink symbol or flexible symbol region is larger than SBFD and the other section is smaller than or equal to SBFD, the downlink symbol or flexible symbol region is smaller than the SBFD region for each section of the downlink symbol or flexible symbol region.
TABLE 3 Table 3
TABLE 4 Table 4
Optionally, if there is a downlink dynamic scheduling impact on SBFD time domain locations within a downlink symbol or flexible symbol, and there may or may not be an SFI:
When there is downlink active scheduling in the downlink symbol or flexible symbol and there is overlap with the uplink sub-band, the UE determines the area between the first downlink-free active scheduling SBFD valid symbol to the last downlink-free active scheduling SBFD valid symbol as the actual effective uplink sub-band.
At this time, whether there are multiple sections SBFD:
If there are multiple downlink schedules or two switch points indicated by the SFI, then multiple segments SBFD of regions will occur, and for each segment SBFD of regions, the region between the next SBFD active symbol from the first downlink-free schedule to the last SBFD active symbol from the downlink-free schedule is determined to be the actual active uplink sub-band (as exemplified in tables 5-9).
Alternatively, the UE may choose to reserve one or more SBFD regions according to one of the following principles:
Principle 1: one or more uplink symbols with dynamic scheduling in the uplink sub-band are reserved as high priority, and even if uplink (such as uplink configured by high-layer signaling) is carried out in the uplink sub-band on other symbols, the uplink symbols are not transmitted;
principle 2: reserving the earliest or earlier SBFD areas in time;
principle 3: the longest one, or longer ones, of the SBFD regions is reserved.
TABLE 5
TABLE 6
TABLE 7
Table 8: SFI restriction D+F
Table 9: two-stage SFI limitation D+F
Alternatively, if there is an uplink active scheduling effect in the F symbol on SBFD time domain position scheduling, and there may or may not be SFI, then the symbol with uplink active scheduling in the non-uplink subband position of the flexible symbol region is not taken as a valid SBFD symbol (as in table 10 for example). Wherein, the downlink sub-band in the table refers to the duplex operation downlink frequency domain position.
Table 10
Example 2
In this embodiment, the base station provides the UE with SBFD time domain locations of the higher layer signaling configuration and the dynamically indicated SBFD time domain locations.
In this scenario, the determined valid SBFD symbols need to meet the following conditions: and the dynamic downlink scheduling is positioned at SBFD time domain positions and/or SBFD time domain positions which are dynamically indicated in the high-layer signaling configuration, and is a downlink symbol or a flexible symbol which is configured in the high-layer signaling configuration and a downlink symbol or a flexible symbol which is indicated by SFI (if any), and corresponds to the dynamic downlink scheduling without SBFD frequency domain positions in the downlink symbol or the flexible symbol and corresponds to the dynamic uplink scheduling without SBFD frequency domain positions in the flexible symbol.
At this time, the area between the first SBFD valid symbols and the last SBFD valid symbols in succession in the same slot is determined as a segment of valid SBFD area.
Alternatively, the manner of dynamically indicating SBFD the time domain position may be: indication information is newly added in DCI such as SFI.
Specifically, SBFD information can be added on the basis of the existing DL/UL/SUL (supplemental uplink) slot format information, and specifically, the following method can be adopted:
whether uplink sub-band configuration is applied in a GC-PDCCH (multicast PDCCH) monitoring period or not, wherein 1bit is used;
whether uplink sub-band configuration is applied to each time slot in the GC-PDCCH monitoring period or not, wherein the bitmap length is the GC-PDCCH period (still the granularity of each time slot);
the newly added field in the GC-PDCCH indicates an index corresponding to a certain row of the table, the row containing one or more values, which is an indication of whether the uplink sub-band is applied in the period, for example, all 1 s, all the uplink sub-bands are used in the period, and if the corresponding bit is 0s, the uplink sub-band in a certain time slot is not applied (still the granularity per time slot).
The following description is given in terms of a case when the base station indicates downlink symbols or flexible symbol information to the UE through the SFI.
Case 1: the dynamically indicated SBFD time domain location covers the SBFD time domain location of the higher layer signaling configuration at this point, the actual effective uplink sub-band may be determined as shown by way of example in table 11.
TABLE 11
Case 2: the downlink symbol or flexible symbol region indicated by SFI is smaller than SBFD time domain region
At this time, the UE may determine the uplink sub-band that is actually in effect according to one of the following principles:
Principle 1: when the dynamic indication SBFD time domain region is a symbol level indication, the dynamic indication SBFD time domain region does not exceed the downlink symbol or flexible symbol region indicated by the SFI, i.e., the dynamic indication needs to indicate which symbols are available for SBFD according to the signaling of the SFI (as in table 12 for example).
Table 12
Principle 2: when the dynamic indicator SBFD is a slot level indicator, the actual uplink sub-band will be modified at the symbol level according to the SFI and the dynamic indicator (e.g. table 13 is an example), and the above schemes 1,2 and 3 can be referred to specifically, and will not be repeated here.
TABLE 13
Case 3: the downlink symbol or flexible symbol area indicated by SFI is larger than or equal to SBFD time domain area
At this time, SBFD time domain regions are determined according to the time domain positions indicated by the uplink sub-carriers (e.g., table 14).
TABLE 14
Optionally, when the downlink symbol or flexible symbol area indicated by the SFI has 2 segments, the manner in which the UE determines the uplink sub-band that is actually effective is the same as that in embodiment 1, and will not be described in detail herein.
Optionally, when there is an impact of downlink dynamic scheduling on SBFD time domain position in the downlink symbol or flexible symbol, and there may be SFI or no SFI, the manner of determining the uplink sub-band that is actually effective by the UE is the same as that of embodiment 1, and will not be described in detail here.
Optionally, when there is an impact of uplink active scheduling on SBFD time domain position scheduling in the flexible symbol, and there may be an SFI or no SFI, the manner in which the UE determines the uplink sub-band that is actually effective is the same as in embodiment 1, and will not be described in detail here.
The embodiment of the invention also provides a device for determining the duplex operation area, which is located in the user equipment, as shown in fig. 10, and comprises:
an obtaining unit 11, configured to obtain duplex operation time domain and/or frequency domain location information;
a determining unit 12 for determining an area satisfying the following conditions as an effective duplex operation area: is located in the duplex operation time domain and/or frequency domain position.
The device for determining the duplex operation area provided by the embodiment of the invention can determine the effective duplex operation area based on the duplex operation time domain and/or frequency domain position information, thereby meeting the actual requirement that different sub-bands of the same carrier adopt different uplink and downlink time slot ratios.
The device of the present embodiment may be used to execute the technical solution of the foregoing method embodiment, and its implementation principle and technical effects are similar, and are not described herein again.
The embodiment of the invention also provides user equipment, which comprises:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of determining the duplex operation region described above.
The embodiment of the invention also provides a chip, which comprises:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of determining the duplex operation region described above.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores computer instructions, and the computer instructions realize the method for determining the duplex operation area when being executed by a processor.
Those skilled in the art will appreciate that implementing all or part of the above-described method embodiments may be accomplished by way of computer programs, which may be stored on a computer readable storage medium, which when executed may comprise the steps of the method embodiments described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random-access Memory (Random Access Memory, RAM), or the like.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (17)

1. A method for determining a duplex operation area, the method being applied to a user equipment, the method comprising:
Acquiring duplex operation time domain and/or frequency domain position information;
the area satisfying the following conditions is determined as an effective duplex operation area:
is located in the duplex operation time domain and/or frequency domain position.
2. The method of claim 1, wherein the determined effective duplex operating region further satisfies the following condition:
The symbols at the time domain position of the duplex operation are downlink symbols or flexible symbols configured by high-layer signaling, namely effective duplex operation symbols.
3. The method of claim 2, wherein the determined effective duplex operating region further satisfies at least one of the following conditions:
the duplex operation uplink frequency domain position in the flexible symbol has no dynamic downlink scheduling;
and dynamic uplink scheduling does not exist in the downlink frequency domain position of the duplex operation in the flexible symbol.
4. A method according to any one of claims 1 to 3, wherein said obtaining duplex operation time-domain and/or frequency-domain location information comprises: and acquiring duplex operation time domain and/or frequency domain position information configured and/or dynamically indicated by the high-level signaling.
5. The method of claim 4, wherein if the obtained dynamically indicated duplexing time domain and/or frequency domain location is different from the duplexing time domain and/or frequency domain location of the higher layer signaling configuration, determining an effective duplexing region is based on the dynamically indicated duplexing time domain and/or frequency domain location information.
6. The method according to claim 4, wherein the method further comprises:
and when the duplex operation time domain and/or the frequency domain position of the high-level signaling configuration in the time slot is overlapped with the uplink symbol, determining the area where all symbols positioned in the duplex operation time domain in the time slot are positioned as an ineffective duplex operation area.
7. The method of claim 6, wherein the non-effective duplex operation region is a region other than the effective duplex operation region.
8. The method according to claim 4, wherein the method further comprises:
acquiring downlink symbol or flexible symbol information indicated by a time slot format indication SFI;
The determined effective duplex operating region also needs to satisfy the following conditions: the symbols at the time domain position of the duplex operation are downlink symbols or flexible symbols indicated by SFI.
9. The method of claim 8, wherein the method further comprises:
the region between the first effective duplex operation symbol and the last effective duplex operation symbol is determined as a section of effective duplex operation region.
10. The method of claim 9, wherein if the determined effective duplex operation area is preceded or followed by an ineffective duplex operation area, determining an area of the effective duplex operation area excluding a transition time as an actual effective duplex operation area, the transition time being preconfigured or a default value.
11. The method of claim 9, wherein if there is downlink dynamic scheduling of downlink symbols or flexible symbol regions and there is overlap with duplex operation uplink frequency domain locations, the method further comprises:
and determining the area which excludes downlink dynamic scheduling and overlaps with the uplink frequency domain position of the duplex operation in the effective duplex operation area as an effective duplex operation area.
12. The method of claim 8, wherein if there is uplink active scheduling for the non-duplex operating uplink frequency domain location of the flexible symbol region, the method further comprises:
And determining the area with uplink dynamic scheduling at the position of the uplink frequency domain of the non-duplex operation of the flexible symbol area as an effective duplex operation area.
13. The method of claim 6, wherein if there are multiple effective duplex operating regions, one or more of the effective duplex operating regions is reserved according to one of the following criteria:
principle 1: reserving an effective duplex operation area with dynamic scheduling in the duplex operation uplink frequency domain position as a high priority;
principle 2: reserving one or more effective duplex operating regions that are temporally earlier;
Principle 3: one or more effective duplex operation areas with longer length are reserved.
14. An apparatus for determining a duplex operation area, the apparatus being located in a user equipment, the apparatus comprising:
the acquisition unit is used for acquiring the duplex operation time domain and/or frequency domain position information;
A determining unit configured to determine, as an effective duplex operation area, an area satisfying the following condition: is located in the duplex operation time domain and/or frequency domain position.
15. A user device, the user device comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 13.
16. A chip, the chip comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 13.
17. A computer readable storage medium storing computer instructions which, when executed by a processor, implement the method of any one of claims 1 to 13.
CN202211388633.5A 2022-11-07 2022-11-07 Method and device for determining duplex operation area and user equipment Pending CN117998635A (en)

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