CN118300760A - Method and device for indicating change of duplex operation symbol to non-duplex operation symbol - Google Patents

Method and device for indicating change of duplex operation symbol to non-duplex operation symbol Download PDF

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Publication number
CN118300760A
CN118300760A CN202310009820.6A CN202310009820A CN118300760A CN 118300760 A CN118300760 A CN 118300760A CN 202310009820 A CN202310009820 A CN 202310009820A CN 118300760 A CN118300760 A CN 118300760A
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China
Prior art keywords
duplex operation
symbol
changed
duplex
period
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Chinese (zh)
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 CN202310009820.6A priority Critical patent/CN118300760A/en
Priority to PCT/CN2023/143019 priority patent/WO2024146461A1/en
Publication of CN118300760A publication Critical patent/CN118300760A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • 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
    • H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission

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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, a device and a base station for indicating a duplex operation symbol to be changed into a non-duplex operation symbol. The method is applied to a base station, and comprises the following steps: and sending an instruction of changing the duplex operation symbol to the non-duplex operation symbol to the UE so that the UE can determine whether duplex operation can be performed according to the instruction of changing the duplex operation symbol to the non-duplex operation symbol. The invention can send the instruction of changing the duplex operation symbol to the non-duplex operation symbol to the UE, so that the UE can determine whether the duplex operation can be carried out according to the uplink or downlink data quantity.

Description

Method and device for indicating change of duplex operation symbol to non-duplex operation symbol
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method, an apparatus, and a base station for indicating a change from a duplex operation symbol to a non-duplex operation symbol.
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, the slot n is a pure DL symbol, where no uplink subband is included, and no uplink transmission is allowed; an uplink sub-band is added in a time 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; time slot n+4 is a pure UL symbol, and uplink transmission of the UE can be allowed at all frequency domain positions of time 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.
The base station may inform the UE of SBFD time and frequency domain information, and the UE may perform uplink transmission in the uplink resource or downlink reception in the downlink resource according to the SBFD time and frequency domain information. SBFD time and frequency domain information may be signaled to the UE by higher layer signaling.
However, the SBFD area configured by the higher layer signaling may cause the SBFD area to be relatively fixed, and the size of the SBFD area cannot be determined according to the uplink or downlink data amount. If the uplink service is more, the SBFD area is enabled, and uplink can be sent at the time-frequency domain position of the uplink sub-band; when there are more downlink traffic, SBFD is disabled and the full downlink symbol can be used to transmit the downlink.
In the scene of duplex operation, how to change duplex operation symbols into non-duplex operation symbols is a technical problem to be solved in the field.
Disclosure of Invention
The method, the device and the base station for indicating the change of the duplex operation symbol to the non-duplex operation symbol can send the indication of the change of the duplex operation symbol to the non-duplex operation symbol to the UE so that the UE can determine whether the duplex operation can be performed according to the indication of the change of the duplex operation symbol to the non-duplex operation symbol.
In a first aspect, the present invention provides a method for indicating that a duplex operation symbol is changed to a non-duplex operation symbol, the method being applied to a base station, the method comprising:
And sending an instruction of changing the duplex operation symbol to the non-duplex operation symbol to the UE so that the UE can determine whether duplex operation can be performed according to the instruction of changing the duplex operation symbol to the non-duplex operation symbol.
Optionally, the sending the indication of changing the duplex operation symbol to the non-duplex operation symbol to the UE includes: and sending an indication that the duplex operation symbol is changed into the non-duplex operation symbol to the UE through dynamic signaling or high-layer signaling.
Optionally, the sending, by dynamic signaling or higher layer signaling, the indication that the duplex operation symbol is changed to the non-duplex operation symbol to the UE includes:
indicating whether one or more symbols in the period are changed from duplex operation to non-duplex operation according to dynamic signaling or higher layer signaling;
Whether one or more time slots in the period are changed from duplex operation to non-duplex operation is indicated by dynamic signaling or higher layer signaling.
Optionally, the indicating whether the one or more time slots in the period are changed from duplex operation to non-duplex operation according to dynamic signaling or higher layer signaling includes:
indicating whether all time slots in the period are changed from duplex operation to non-duplex operation according to dynamic signaling or high-layer signaling; or alternatively
And sending an index for indicating whether each time slot in the period is changed from duplex operation to non-duplex operation through dynamic signaling or high-level signaling, wherein different indexes correspond to different situations of whether each time slot in the period is changed from duplex operation to non-duplex operation.
Optionally, the indicating whether the one or more symbols in the period are changed from duplex operation to non-duplex operation according to dynamic signaling or higher layer signaling includes:
and sending an index for indicating whether each symbol in the period is changed from duplex operation to non-duplex operation through dynamic signaling or high-layer signaling, wherein different indexes correspond to different situations of whether each symbol in the period is changed from duplex operation to non-duplex operation.
Optionally, the method further comprises:
indicating the granularity at which the duplex operation symbols change to non-duplex operation symbols.
Optionally, the indicating the granularity of changing the duplex operation symbol to the non-duplex operation symbol includes:
Indicating that the symbol level in the duplex operation area in the period is changed from duplex operation to non-duplex operation; or alternatively
Indicating that the time slot level in the duplex operation area in the period is changed from duplex operation to non-duplex operation; or alternatively
Indicating that the multi-slot level in the duplex operation area in the period is changed from duplex operation to non-duplex operation.
Optionally, the time requirement for changing the duplex operation symbol to the non-duplex operation symbol includes: the symbol level cancels the uplink transmission, the slot level cancels the uplink transmission or the multi-slot level cancels the uplink transmission.
Optionally, the symbol-level cancellation uplink transmission specifically includes: starting from the PDCCH end position, starting with the earliest symbol of the overlapped channels, wherein the interval is larger than the period T;
the uplink transmission cancellation of the time slot level specifically comprises the following steps: starting from the end position of the PDCCH, stopping the first symbol of the earliest dynamic scheduling in the time slot;
the uplink transmission cancellation of the multi-slot level is specifically: from the PDCCH end position, the first symbol of the earliest dynamic scheduling in the present multislot is terminated.
In a second aspect, the present invention provides an apparatus for indicating a change from a duplex operation symbol to a non-duplex operation symbol, the apparatus being located in a base station, the apparatus comprising:
And the indication unit is used for sending an indication that the duplex operation symbol is changed into the non-duplex operation symbol to the UE so that the UE can determine whether duplex operation can be performed according to the indication that the duplex operation symbol is changed into the non-duplex operation symbol.
Optionally, the indication unit is further configured to send an indication that the duplex operation symbol is changed to the non-duplex operation symbol to the UE through dynamic signaling or higher layer signaling.
Optionally, the indication unit is further configured to indicate whether one or more symbols in the period are changed from duplex operation to non-duplex operation according to dynamic signaling or higher layer signaling; or whether one or more time slots in the period are changed from duplex to non-duplex operation according to dynamic signaling or higher layer signaling.
Optionally, the indication unit is further configured to indicate a granularity of changing the duplex operation symbol to the non-duplex operation symbol.
Optionally, the time requirement for changing the duplex operation symbol to the non-duplex operation symbol includes: the symbol level cancels the uplink transmission, the slot level cancels the uplink transmission or the multi-slot level cancels the uplink transmission.
In a third aspect, the present invention provides a base station 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 indicating a change from a duplex operation symbol to a non-duplex operation symbol.
In a fourth aspect, the present invention provides a computer readable storage medium storing computer instructions that when executed by a processor implement the above method of indicating a change from a duplex operation symbol to a non-duplex operation symbol.
The method, the device and the base station for indicating the change of the duplex operation symbol to the non-duplex operation symbol can send the indication of the change of the duplex operation symbol to the non-duplex operation symbol to the UE so that the UE can determine whether the duplex operation can be performed according to the indication of the change of the duplex operation symbol to the non-duplex operation symbol.
Drawings
FIG. 1 is a diagram illustrating symbol patterns in each time slot at SBFD;
FIG. 2 is a schematic diagram of a single slot table;
FIGS. 3-7 are diagrams of slot formats in NR systems;
fig. 8 is a flow chart of a method for indicating a change from a duplex operation symbol to a non-duplex operation symbol according to an embodiment of the invention;
FIG. 9 is a schematic diagram of symbol level/slot level de-enabling in SBFD areas of a cycle provided by an embodiment of the present invention;
FIG. 10 is a schematic diagram of enabling multiple slot levels in the SBFD area of a cycle according to an embodiment of the present invention;
Fig. 11 is a schematic diagram of symbol-level cancellation uplink transmission according to an embodiment of the present invention;
Fig. 12 is a schematic diagram of a slot level cancellation uplink transmission according to an embodiment of the present invention;
fig. 13 is a schematic diagram of canceling uplink transmission at a multi-slot level according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of an apparatus for indicating a change from a duplex operation symbol to a non-duplex operation symbol according to an embodiment of the present 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.
An SF (Slot Format) is introduced into an NR (New Radio), and the SF includes the number of downlink (denoted by "D"), flexible (denoted by "F") and uplink (denoted by "U") symbols in a certain Slot. 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. As shown in fig. 2, 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. 3-5, there are 0 switch points in a slot, where there are 14 downlink symbols in fig. 3, 14 uplink symbols in fig. 4, and 14 flexible symbols in fig. 5.
As shown in fig. 6, 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. 7, 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.
In addition, the processing time for canceling the uplink transmission depends on many factors, such as a subcarrier spacing, a symbol of a PDCCH causing cancellation of the uplink transmission, a symbol requiring cancellation of the uplink transmission.
After receiving the Uplink scheduling information, a time interval in which the UE can transmit a PUSCH (Physical Uplink SHARED CHANNEL) is referred to as a UE processing time of the PUSCH. The last symbol of PDCCH, which is specified to carry PUSCH scheduling information, needs to beAfter time, the UE may transmit PUSCH. N 2 at UE capability 1 is defined as in Table 1 below, and is related to subcarrier spacing μ, and UE capability. If PDCCH subcarrier spacing μ DL is different from PUSCH subcarrier spacing μ UL, min (μ DL,μUL) is required. If the first symbol of PUSCH contains DMRS (Demodulation reference signal) only, d 2,1 =0, otherwise d 2,1 =1, if UE is configured as multiple active carriers, d 2,2 is equal to the maximum time difference between different carriers, otherwise d 2,2 =0. The subcarrier spacings indicated by μ=0, 1,2,3 above correspond to 15khz,30khz,60khz,120khz, respectively.
Table 1 PUSCH preparation time for PUSCH timing capability 1
μ PUSCH preparation time N 2 (number of symbols)
0 10
1 12
2 23
3 36
The embodiment of the invention provides a method for indicating a duplex operation symbol to be changed into a non-duplex operation symbol, which is applied to a base station, as shown in fig. 8, and comprises the following steps:
And S11, sending an instruction of changing the duplex operation symbol into the non-duplex operation symbol to the UE so that the UE can determine whether duplex operation can be performed according to the instruction of changing the duplex operation symbol into the non-duplex operation symbol.
The duplex operation symbol means that the higher layer signaling configures a certain symbol to perform duplex operation, that is, uplink transmission or downlink transmission can be performed at different frequency domain positions of the certain symbol.
The method for indicating the duplex operation symbol to be changed into the non-duplex operation symbol provided by the embodiment of the invention can send the indication of changing the duplex operation symbol into the non-duplex operation symbol to the UE so that the UE can determine whether duplex operation can be performed or not according to the indication of changing the duplex operation symbol into the non-duplex operation symbol.
The method for indicating the change of the duplex operation symbol to the non-duplex operation symbol according to the present invention will be described in detail with reference to the following embodiments.
The base station may send an indication to the UE that the duplex operation symbol is changed to the non-duplex operation symbol through dynamic signaling or higher layer signaling.
The dynamic signaling refers to signaling carried by a PDCCH, and the higher layer signaling may be UE-specific signaling.
It should be noted that "disable" in the following embodiments, that is, the duplex operation symbol is changed to the non-duplex operation symbol.
(1) Disabling by dynamic signaling indication
Such as using the existing DCI format 2_0 (for carrying the dynamic slot format information described above) to carry the disabling information.
Mode 1: according to the dynamic signaling, indicating whether each time slot in the period is disabled or not, and 1bit of each time slot;
If the listening period of the PDCCH search space carrying DCI format 2_0 is 5 slots, the field in DCI format 2_0 contains 5 bits, and each bit indicates whether the 5 slots in the listening period need to change the SBFD operation of the higher layer signaling configuration to a non-SBFD operation, such as DL-only or UL-only symbol.
Mode 2: according to the dynamic signaling, indicating whether all time slots in the period are disabled or not, and requiring 1bit in total;
If the listening period of the PDCCH search space carrying DCI format 2_0 is 5 slots, the field in DCI format 2_0 contains 1bit, and this 1bit indicates whether the 5 slots in the listening period are all changed to non-SBFD operations, such as DL-only or UL-only symbols, if there is SBFD operations of the higher layer signaling configuration.
Mode 3: a table is configured by high-level signaling, with a row in the table containing a row index and a corresponding identification indicating whether each symbol/slot in the period is disabled. The dynamic control information carried by the PDCCH indicates a certain row in this table, which is used to indicate whether to change SBFD operations to non-SBFD operations.
As shown in table 2 or table 3, each row in the table includes a row index and a disable symbol corresponding to the row index.
TABLE 2 symbol level disabling
Indexing of De-enabling symbols (e.g., 1 for de-enabling to take effect, 0 for enabling)
00 11111110000000
01 11111111110000
10 00111111100000
11 11111111111111
As shown in table 3, to disable the slot level, the period of operation as SBFD is 5 (as shown in fig. 9), and the higher layer signaling indicates that slots n+1, n+2, n+3 are SBFD enabled slots. It may be further signaled whether time slots n +1, n +2, n +3 are disabled.
TABLE 3 time slot level disable
Indexing of De-enabled time slots (e.g., 1 for de-enabled to take effect, 0 for enabled)
00 11111
01 10111
10 11101
11 10101
(2) Disabling by high-level signaling indication
Such as using UE-specific signaling to issue SBFD an indication to the UE to operate to disable, similar to the above-described disabling by dynamic signaling.
Mode 1: indicating whether each time slot is disabled according to the number of time slots in the UE dedicated signaling indication period, wherein each time slot is 1bit;
If the period of the higher layer signaling configuration is 5 time slots, the higher layer signaling is indicated by 5 bits, and each bit indicates whether the operation of SBFD time slots in the period of the higher layer signaling configuration needs to be changed to a non-SBFD operation, such as a symbol of DL-only or UL-only.
Mode 2: according to whether all time slots in a UE special signaling indication period are disabled or not, 1bit is required in total;
If the period of the higher layer signaling configuration is 5 time slots, the higher layer signaling is indicated by 1bit, and the 1bit indicates whether the operations of SBFD time slots in the period need to be changed to operations other than SBFD, such as the symbols of DL-only or UL-only.
Mode 3: a table is configured by high-level signaling, with a row in the table containing a row index and a corresponding identification indicating whether each symbol/slot in the period is disabled.
As shown in table 2 or table 3, each row in the table includes a row index and a disable symbol corresponding to the row index.
When the base station indicates SBFD that the operation is disabled, the granularity of SBFD operation disabling may be:
(1) Symbol level disable in SBFD region of cycle
According to the scheduling or configuration of the current symbol, the transmission direction and whether to receive or transmit can be determined for all frequency domain locations within the symbol.
As shown in fig. 9, in the slot n+1, dg-PDSCH (DYNAMIC GRANT PHYSICAL Downlink SHARED CHANNEL ) in the uplink sub-band (UL subband), SBFD of the corresponding symbol is disabled. Since the symbol of SPS-PDSCH (Semi-PERSISTENT SCHEDULING PHYSICAL DOWNLINK SHARED CHANNEL ) within this slot is still SBFD enabled, SPS-PDSCH is still not received.
In slot n+2, DG-PDSCH is disabled in the uplink sub-band with SBFD of the corresponding symbol. CG-PUSCH is receivable since the symbols of CG-PUSCH (Configured GRANT PHYSICAL Uplink SHARED CHANNEL ) within this slot are still SBFD enabled.
(2) Time slot level disabling in SBFD region of cycle
According to the scheduling or configuration of the current symbol, the transmission direction and whether to receive or transmit can be determined for all frequency domain positions in the time slot.
As shown in fig. 9, slot n+1, dg-PDSCH is disabled in the uplink sub-band for slot SBFD. And the SPS-PDSCH within this slot may be received.
Slot n+2, dg-PDSCH is disabled in the uplink sub-band with SBFD of the corresponding slot. CG-PUSCH is not receivable since all symbols within this slot are also SBFD disabled.
(3) Multi-slot level disabling in SBFD region of cycle
According to the scheduling or configuration of the current symbol, the transmission directions of all frequency domain positions in the period and whether to receive or transmit can be determined.
As shown in fig. 10, all slots in the present period are disabled. Such as slot n+1, dg-PDSCH in the uplink sub-band, meaning that SBFD corresponding to multiple slots (slots n+1, n+2, n+3) are disabled. The SPS-PDSCH in time slot n+1 may be received and the CG-PUSCH in time slot n+2 may not be transmitted, i.e., discarded. The PUCCH carrying the SR for slot n+3 is not transmittable.
Further, the base station needs to meet the time requirement of SBFD operation de-enabling when indicating SBFD operation de-enabling. Since the dynamic downlink scheduling or dynamic signaling disable SBFD operations, the cancellation of the uplink transmission will be required, which may be specifically:
(1) Symbol level cancellation: as shown in fig. 11, the interval from the PDCCH end position is larger than the period T, starting with the earliest symbol of the overlapping channels (uplink and downlink).
(2) Slot level cancellation: as shown in fig. 12, from the PDCCH end position, the first symbol of the earliest dynamic scheduling in the present slot is terminated.
(3) Multislot level cancellation: as shown in fig. 13, from the PDCCH end position, the first symbol of the earliest dynamic scheduling in the present multislot is terminated.
The embodiment of the invention also provides a device for indicating the change of the duplex operation symbol to the non-duplex operation symbol, which is located in the base station, as shown in fig. 14, and comprises:
and the indication unit 11 is configured to send an indication that the duplex operation symbol is changed to the non-duplex operation symbol to the UE, so that the UE determines whether the duplex operation can be performed according to the indication that the duplex operation symbol is changed to the non-duplex operation symbol.
The device for indicating the change of the duplex operation symbol to the non-duplex operation symbol provided by the embodiment of the invention can send the indication of the change of the duplex operation symbol to the non-duplex operation to the UE so as to determine whether the UE can perform the duplex operation according to the indication of the change of the duplex operation symbol to the non-duplex operation symbol.
Optionally, the indication unit 11 is further configured to send an indication that the duplex operation symbol is changed to the non-duplex operation symbol to the UE through dynamic signaling or higher layer signaling.
Optionally, the indication unit 11 is further configured to indicate whether one or more symbols in the period are changed from duplex operation to non-duplex operation according to dynamic signaling or higher layer signaling; or whether one or more time slots in the period are changed from duplex to non-duplex operation according to dynamic signaling or higher layer signaling.
Optionally, the indication unit 11 is further configured to indicate that the duplex operation symbol is changed to the granularity of the non-duplex operation symbol.
Optionally, the time requirement for changing the duplex operation symbol to the non-duplex operation symbol includes: the symbol level cancels the uplink transmission, the slot level cancels the uplink transmission or the multi-slot level cancels the uplink transmission.
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 a base station, 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 indicating a change from a duplex operation symbol to a non-duplex operation symbol.
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 indicating the duplex operation symbol to be changed into the non-duplex operation symbol 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 (16)

1. A method of indicating a change of a duplex operation symbol to a non-duplex operation symbol, the method being applied to a base station, the method comprising:
And sending an instruction of changing the duplex operation symbol to the non-duplex operation symbol to the UE so that the UE can determine whether duplex operation can be performed according to the instruction of changing the duplex operation symbol to the non-duplex operation symbol.
2. The method of claim 1, wherein the signaling to the UE an indication of a change of duplex operation symbols to non-duplex operation symbols comprises: and sending an indication that the duplex operation symbol is changed into the non-duplex operation symbol to the UE through dynamic signaling or high-layer signaling.
3. The method of claim 2, wherein the signaling, via dynamic signaling or higher layer signaling, to the UE an indication of a change of duplex operation symbols to non-duplex operation symbols comprises:
indicating whether one or more symbols in the period are changed from duplex operation to non-duplex operation according to dynamic signaling or higher layer signaling;
Whether one or more time slots in the period are changed from duplex operation to non-duplex operation is indicated by dynamic signaling or higher layer signaling.
4. A method according to claim 3, wherein said indicating whether one or more time slots within a period are changed from duplex to non-duplex operation according to dynamic signaling or higher layer signaling comprises:
indicating whether all time slots in the period are changed from duplex operation to non-duplex operation according to dynamic signaling or high-layer signaling; or alternatively
And sending an index for indicating whether each time slot in the period is changed from duplex operation to non-duplex operation through dynamic signaling or high-level signaling, wherein different indexes correspond to different situations of whether each time slot in the period is changed from duplex operation to non-duplex operation.
5. The method of claim 3, wherein the indicating whether one or more symbols in a period are changed from duplex to non-duplex operation according to dynamic signaling or higher layer signaling comprises:
and sending an index for indicating whether each symbol in the period is changed from duplex operation to non-duplex operation through dynamic signaling or high-layer signaling, wherein different indexes correspond to different situations of whether each symbol in the period is changed from duplex operation to non-duplex operation.
6. The method according to claim 1 or 2, characterized in that the method further comprises:
indicating the granularity at which the duplex operation symbols change to non-duplex operation symbols.
7. The method of claim 6, wherein the indicating the granularity at which the duplex operation symbol changes to the non-duplex operation symbol comprises:
Indicating that the symbol level in the duplex operation area in the period is changed from duplex operation to non-duplex operation; or alternatively
Indicating that the time slot level in the duplex operation area in the period is changed from duplex operation to non-duplex operation; or alternatively
Indicating that the multi-slot level in the duplex operation area in the period is changed from duplex operation to non-duplex operation.
8. The method of claim 7, wherein the changing of the time requirement of the duplex operation symbol to the non-duplex operation symbol comprises: the symbol level cancels the uplink transmission, the slot level cancels the uplink transmission or the multi-slot level cancels the uplink transmission.
9. The method of claim 8, wherein the symbol level cancellation uplink transmission is specifically: starting from the PDCCH end position, starting with the earliest symbol of the overlapped channels, wherein the interval is larger than the period T;
the uplink transmission cancellation of the time slot level specifically comprises the following steps: starting from the end position of the PDCCH, stopping the first symbol of the earliest dynamic scheduling in the time slot;
the uplink transmission cancellation of the multi-slot level is specifically: from the PDCCH end position, the first symbol of the earliest dynamic scheduling in the present multislot is terminated.
10. An apparatus for indicating a change from a duplex operation symbol to a non-duplex operation symbol, the apparatus being located at a base station, the apparatus comprising:
And the indication unit is used for sending an indication that the duplex operation symbol is changed into the non-duplex operation symbol to the UE so that the UE can determine whether duplex operation can be performed according to the indication that the duplex operation symbol is changed into the non-duplex operation symbol.
11. The apparatus of claim 10, wherein the indication unit is further configured to send an indication to the UE that the duplex operation symbol is changed to the non-duplex operation symbol through dynamic signaling or higher layer signaling.
12. The apparatus of claim 11, wherein the indication unit is further configured to indicate whether one or more symbols in a period are changed from duplex to non-duplex operation according to dynamic signaling or higher layer signaling; or whether one or more time slots in the period are changed from duplex to non-duplex operation according to dynamic signaling or higher layer signaling.
13. The apparatus according to claim 10 or 11, wherein the indication unit is further configured to indicate a granularity at which the duplex operation symbol is changed to the non-duplex operation symbol.
14. The apparatus of claim 13, wherein the time requirement for the duplex operation symbol to change to a non-duplex operation symbol comprises: the symbol level cancels the uplink transmission, the slot level cancels the uplink transmission or the multi-slot level cancels the uplink transmission.
15. A base station, the base station 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 9.
16. A computer readable storage medium storing computer instructions which, when executed by a processor, implement the method of any one of claims 1 to 9.
CN202310009820.6A 2023-01-04 2023-01-04 Method and device for indicating change of duplex operation symbol to non-duplex operation symbol Pending CN118300760A (en)

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CN202310009820.6A CN118300760A (en) 2023-01-04 2023-01-04 Method and device for indicating change of duplex operation symbol to non-duplex operation symbol
PCT/CN2023/143019 WO2024146461A1 (en) 2023-01-04 2023-12-29 Method and apparatus for instructing duplex operation symbol to be changed into non-duplex operation symbol

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Publication number Priority date Publication date Assignee Title
US10333686B2 (en) * 2015-05-14 2019-06-25 Apple Inc. Adaptive half duplex/full duplex operation for battery and antenna constrained devices
CN111867107A (en) * 2019-04-29 2020-10-30 北京三星通信技术研究有限公司 Method, terminal and base station for switching duplex mode
US11937235B2 (en) * 2020-07-02 2024-03-19 Qualcomm Incorporated Slot format indicator (SFI) enhancement for sub-band full-duplex
US11895060B2 (en) * 2021-05-05 2024-02-06 Qualcomm Incorporated Enabling transitions between half-duplex and full-duplex modes

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