WO2024099255A1 - 双工操作区域的确定方法、装置及用户设备 - Google Patents
双工操作区域的确定方法、装置及用户设备 Download PDFInfo
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- WO2024099255A1 WO2024099255A1 PCT/CN2023/129874 CN2023129874W WO2024099255A1 WO 2024099255 A1 WO2024099255 A1 WO 2024099255A1 CN 2023129874 W CN2023129874 W CN 2023129874W WO 2024099255 A1 WO2024099255 A1 WO 2024099255A1
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- duplex operation
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—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
Definitions
- the present invention relates to the field of wireless communication technology, and in particular to a method and device for determining a duplex operation area and user equipment.
- TDD Time Division Duplexing
- the SBFD Subband Full Duplex
- Slot n is a pure DL symbol, which does not contain an uplink subband and does not allow uplink transmission; an uplink subband is added to the DL symbol in the time slot Slot n+1/n+2/n+3, allowing the UE to transmit uplink on this uplink subband, and the gNB to transmit downlink at positions other than the uplink subband; time slot n+4 is a pure UL symbol, which allows the UE to perform uplink transmission at the frequency domain position of slot n+4.
- the time slot can contain symbols D (for downlink transmission) and U (for uplink transmission), as well as flexible symbols X (for downlink or uplink transmission), which can also be used as the switching time from downlink to uplink.
- the method, device and user equipment for determining a duplex operation area provided by the present invention can determine a valid duplex operation area based on duplex operation time domain and/or frequency domain location information.
- the present invention provides a method for determining a duplex operation area, the method being applied to a user equipment, the method comprising:
- the determined valid duplex operation area also needs to meet the following conditions:
- the symbol located at the duplex operation time domain position is a downlink symbol or a flexible symbol configured by a high-layer signaling, that is, a valid duplex operation symbol.
- the determined valid duplex operation area needs to satisfy at least one of the following conditions:
- the acquiring of the duplex operation time domain and/or frequency domain location information includes: acquiring the duplex operation time domain and/or frequency domain location information configured by high-layer signaling and/or dynamically indicated.
- the dynamically indicated duplex operation time domain and/or frequency domain position information shall prevail when determining the effective duplex operation area.
- the method further comprises:
- the area where all symbols in the duplex operation time domain in the time slot are located is determined as a non-valid duplex operation area.
- the ineffective duplex operation area is an area other than the effective duplex operation area.
- the method further comprises:
- the determined valid duplex operation area must also meet the following condition: the symbol located at the duplex operation time domain position is a downlink symbol or a flexible symbol indicated by the SFI.
- the method further comprises:
- a continuous area from the first valid duplex operation symbol to the last valid duplex operation symbol is determined as a valid duplex operation area.
- an area excluding a conversion time in the effective duplex operation area is determined as the actual effective duplex operation area, and the conversion time is preconfigured or a default value.
- the method further includes:
- the area in this effective duplex operation area excluding the downlink dynamic scheduling and overlapping with the uplink frequency domain position of the duplex operation is determined as the effective duplex operation area.
- the method further includes:
- the region where uplink dynamic scheduling occurs in the non-duplex operation uplink frequency domain position of the flexible symbol region is determined as a non-valid duplex operation region.
- one or more valid duplex operation areas are selected and reserved according to one of the following principles:
- Principle 2 One or more valid duplex operation areas that are earlier in time are retained;
- the present invention provides a device for determining a duplex operation area, the device being located in a user equipment, and comprising:
- An acquisition unit used to acquire time domain and/or frequency domain position information of duplex operation
- the determining unit is used to determine an area that meets the following conditions as a valid duplex operation area: being located in the duplex operation time domain and/or frequency domain position.
- the present invention provides a user equipment, the user equipment comprising:
- the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can perform the above-mentioned method for determining the duplex operation area.
- the present invention provides a chip, comprising:
- the memory stores instructions that can be executed by the at least one processor.
- the instructions are executed by the at least one processor so that the at least one processor can perform the above-mentioned method for determining the duplex operation area.
- the present invention provides a computer-readable storage medium, wherein the computer-readable The storage medium stores computer instructions, and when the computer instructions are executed by the processor, the method for determining the duplex operation area is implemented.
- the method, device and user equipment for determining the duplex operation area provided in the embodiments of the present 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 demand of using different uplink and downlink time slot ratios for different subbands of the same carrier.
- FIG1 is a schematic diagram of the symbol form in each time slot under SBFD;
- Figure 2-3 is a schematic diagram of the frame structure of the NR system
- Figure 4-8 is a schematic diagram of the time slot format in the NR system
- FIG. 9 is a flow chart of a method for determining a duplex operation area according to an embodiment of the present invention.
- FIG. 10 is a schematic diagram of the structure of a device for determining a duplex operation area according to an embodiment of the present invention.
- each wireless frame is divided into 10 subframes of the same size with a length of 1 ms. Due to different subcarrier spacings, each subframe can contain multiple time slots. Each time slot consists of a certain number of symbols, and the number of symbols is determined by the CP (Cyclic Prefix) type.
- CP Cyclic Prefix
- Pattern 1 and pattern 2 contain a total time slot configuration period P+P 2 , wherein pattern 1 contains the number of downlink time slots d slots , the number of downlink symbols after the downlink time slot d sym , the number of uplink time slots u slots , and the number of uplink symbols before the uplink time slot u sym . Pattern 2 contains the above elements, and the values can be different.
- FIG2 is a schematic diagram of configuring only pattern 1, with a reference SCS of 15 kHz and a P of 10 ms.
- FIG3 is a schematic diagram of configuration patterns 1 and 2, with a reference SCS of 15 kHz, P of 4 ms, and P2 of 6 ms.
- NR introduces SF (Slot Format), which includes the number of downlink (denoted by "D"), flexible (denoted by "F”) and uplink (denoted by "U”) symbols in a time slot.
- SF includes three configuration methods: using high-level signaling cell-level RRC (Radio Resource Control) signaling configuration, using UE-specific RRC signaling configuration, or using PDCCH (Physical Downlink Control Channel) to dynamically send SFI (Slot Format Indication) to a group of UEs, that is, dynamic SFI.
- the SFI information carried on PDCCH can indicate the format of one or more time slots on one or more carriers.
- the UE After the UE monitors the SFI, it obtains the index information and the index points to a UE-specific table, which can be used to know which symbols in the time slot are "U (uplink)", which are “D (downlink)", and which are "F (flexible)".
- the above UE-specific table is configured and combined in the "single time slot format” table.
- the "single time slot format” table contains all the time slot formats that can be supported in NR (less than 256). It has been determined that the time slot format in the "single time slot format” table contains at most two D/U (downlink/uplink) switching points in each time slot.
- Figures 4-6 there are 0 switching points in a time slot, wherein Figure 4 has 14 downlink symbols, Figure 5 has 14 uplink symbols, and Figure 6 has 14 flexible symbols.
- the time slot starts at 0 or more downlink symbols, ends at 0 or more uplink symbols, and there are flexible symbols in the middle; and there is at least one flexible symbol, and one downlink or one uplink symbol.
- the first 7 symbols of the time slot start with 0 or more downlink symbols and end with at least 1 uplink symbol at symbol 6, with flexible symbols in between; the last 7 symbols of the time slot start with 0 or more downlink symbols and end with 0 or more uplink symbols, with 0 or more flexible symbols in between.
- An embodiment of the present invention provides a method for determining a duplex operation area, the method being applied to a user equipment, as shown in FIG9 , the method comprising:
- the method for determining a duplex operation area provided in an embodiment of the present invention can determine a valid duplex operation area based on the duplex operation time domain and/or frequency domain position information, thereby satisfying different sub-band sampling of the same carrier. Use different uplink and downlink time slot ratios to meet actual needs.
- the determined valid duplex operation area must also meet the following conditions:
- the symbol located at the duplex operation time domain position is a downlink symbol or a flexible symbol configured by a high-layer signaling, that is, a valid duplex operation symbol.
- the determined valid duplex operation area needs to satisfy at least one of the following conditions:
- the uplink frequency domain position of the duplex operation refers to the frequency domain part within the duplex operation symbol that can be used for UE uplink transmission
- the downlink frequency domain position of the duplex operation refers to the downlink frequency domain part within the duplex operation symbol that can be used for gNB downlink transmission.
- the acquiring of the duplex operation time domain and/or frequency domain location information includes: acquiring the duplex operation time domain and/or frequency domain location information configured by high-layer signaling and/or dynamically indicated.
- the dynamically indicated duplex operation time domain and/or frequency domain position information shall prevail when determining the effective duplex operation area.
- the area where all symbols in the duplex operation time domain in the time slot are located is determined as a non-valid duplex operation area.
- the non-valid duplex operation area is an area other than the valid duplex operation area.
- the method further comprises:
- the determined valid duplex operation area must also meet the following condition: the symbol located at the duplex operation time domain position is a downlink symbol or a flexible symbol indicated by the SFI.
- the method further comprises:
- a continuous area from the first valid duplex operation symbol to the last valid duplex operation symbol is determined as a valid duplex operation area.
- an area excluding a conversion time in the effective duplex operation area is determined as the actual effective duplex operation area, and the conversion time is preconfigured or a default value.
- the method further comprises:
- the area in this effective duplex operation area excluding the downlink dynamic scheduling and overlapping with the uplink frequency domain position of the duplex operation is determined as the effective duplex operation area.
- the method further includes:
- the region where uplink dynamic scheduling occurs in the non-duplex operation uplink frequency domain position of the flexible symbol region is determined as a non-valid duplex operation region.
- the duplex mentioned above may be sub-band full-duplex (non-overlapping sub-bands) or full-duplex (frequency domain positions may overlap).
- SBFD sub-band full-duplex
- the base station only provides the UE with the SBFD time domain position configured by the high-layer signaling.
- the determined valid SBFD symbol needs to meet the following conditions: it is located at the SBFD time domain position configured by the high-level signaling, and is a downlink symbol or flexible symbol configured by the high-level signaling and a downlink symbol or flexible symbol indicated by the SFI information (if any), and there is no dynamic downlink scheduling at an SBFD frequency domain position in the corresponding downlink symbol or flexible symbol, and there is no dynamic uplink scheduling at a non-SBFD frequency domain position in the corresponding flexible symbol.
- a continuous area from the first SBFD valid symbol to the last SBFD valid symbol in the same time slot is determined as a valid SBFD area.
- the manner in which the high-layer signaling configures the SBFD time domain position may be one of the following manners:
- the SBFD position is configured in the form of number of time slots + number of symbols;
- the SBFD position is configured in a per-time slot manner, indicating the number of symbols starting from the front symbol 0 to the back of the SBFD in each time slot.
- the base station When the base station indicates downlink symbol or flexible symbol information to the UE through the SFI, the following describes the different situations.
- the UE When the uplink subband time domain configured by the high-level signaling enables all or part of the time slots, and the subsequent high-level signaling Or when SFI sets some flexible symbols as uplink symbols, the UE will perform symbol-level modification according to the high-level signaling or SFI indication to determine the uplink subband that actually takes effect.
- the uplink subband refers to the uplink frequency domain position of the duplex operation.
- the SBFD time domain position is only configured by high-layer signaling and is related to dedicated signaling
- the implementation method in this embodiment may be referred to.
- the UE may determine the actually effective uplink subband according to one of the following solutions, or according to one of solutions 1 and 2 and one of solutions 3 and 4 (such as Table 1 as an example):
- Solution 1 Validating uplink subbands in all downlink symbols or flexible symbols, and disabling uplink subbands in all uplink symbols, wherein one or more of the uplink symbols have a preconfigured or default switching time;
- Solution 2 According to the number of invalid symbols of the uplink subband before the uplink symbol indicated by the SFI or configured by high-level signaling (i.e., retaining the gap), the downlink symbols or flexible symbols other than the invalid symbols of the uplink subband are made valid; that is, if there is a non-valid SBFD area before the determined valid SBFD area, the area in this valid SBFD area excluding the conversion time is determined as the actual valid SBFD area, and the conversion time is pre-configured or a default value.
- Solution 3 According to the number of invalid symbols of the uplink subband after the downlink symbol indicated by the SFI or the default (i.e., retaining the gap), the downlink symbols or flexible symbols other than the invalid symbols of the uplink subband are made valid; that is, if there is a non-valid SBFD area after the determined valid SBFD area, the area in this valid SBFD area excluding the conversion time is determined as the actual valid SBFD area, and the conversion time is pre-configured or a default value.
- Solution 4 Validate the uplink subbands in all downlink symbols or flexible symbols, and disable the uplink subbands in all uplink symbols, wherein one or more symbols preceding the downlink symbol have a preconfigured or default switching time.
- the UE can determine the actual effective uplink subband according to one of the above schemes 1, 2, and 3, or according to one of the above schemes 1 and 2 and the above scheme 3 (such as Table 2 as an example)
- the valid SBFD symbol is determined according to the following principles (such as Tables 3 and 4 as examples):
- the SBFD area shall prevail;
- the downlink symbol or flexible symbol area is smaller than the SBFD area, the downlink symbol or flexible symbol area domain, and multiple segments will appear;
- the UE determines the area from the first SBFD valid symbol without downlink dynamic scheduling to the last SBFD valid symbol without downlink dynamic scheduling as the actually effective uplink subband.
- the SFI indicates two switching points
- the continuous area from the first SBFD valid symbol without downlink dynamic scheduling to the last SBFD valid symbol without downlink dynamic scheduling is determined as the actual effective uplink subband (such as Table 5-9).
- the UE may select to reserve one or more SBFD areas according to one of the following principles:
- Principle 1 One or more uplink symbols in the uplink subband that are dynamically scheduled are reserved as high priority, and uplink subbands on other symbols are not sent even if they are uplink (such as uplink configured by high-level signaling);
- the symbol with uplink dynamic scheduling in the non-uplink sub-band position of the flexible symbol area is not used as a valid SBFD symbol (such as Table 10).
- the downlink sub-band in the table refers to the downlink frequency domain position of the duplex operation.
- the base station provides the UE with the SBFD time domain position configured by the high-layer signaling and the SBFD time domain position indicated dynamically.
- the determined valid SBFD symbol needs to meet the following conditions: it is located at the SBFD time domain position configured by the high-level signaling and/or the SBFD time domain position dynamically indicated, and is a downlink symbol or flexible symbol configured by the high-level signaling and a downlink symbol or flexible symbol indicated by the SFI (if any), and there is no dynamic downlink scheduling of the SBFD frequency domain position in the corresponding downlink symbol or flexible symbol, and there is no dynamic uplink scheduling of the non-SBFD frequency domain position in the corresponding flexible symbol.
- a continuous area from the first SBFD valid symbol to the last SBFD valid symbol in the same time slot is determined as a valid SBFD area.
- the method of dynamically indicating the SBFD time domain position may be: adding indication information in DCI such as SFI.
- SBFD information may be added based on the existing DL/UL/SUL (supplementary uplink) time slot format information, and the following method may be used:
- the length of the bitmap is the GC-PDCCH period (still the granularity of each time slot).
- a new field is added in GC-PDCCH to indicate an index, which corresponds to a row in the table.
- This row contains one or more values, indicating whether the uplink subband is applied in this period. If all are 1, all uplink subbands are used in this period. If the corresponding bit is 0, the uplink subband in a certain time slot is not applied (still at the granularity of each time slot).
- the base station When the base station indicates downlink symbol or flexible symbol information to the UE through the SFI, the following describes the different situations.
- Case 1 The dynamically indicated SBFD time domain position covers the SBFD time domain position configured by the higher layer signaling
- the actually effective uplink subband may be determined in a manner as shown in Table 11 as an example.
- the UE may determine the actually effective uplink subband according to one of the following principles:
- the SBFD time domain area will be determined according to the time domain position of the uplink subband dynamic indication (such as Table 14).
- the way in which the UE determines the actually effective uplink subband is the same as in Embodiment 1, which will not be repeated here.
- the UE determines the way and implementation of the uplink subband that is actually effective Example 1 is the same and will not be repeated here.
- the UE determines the actually effective uplink subband in the same manner as in Embodiment 1, which will not be described again.
- the embodiment of the present invention further provides a device for determining a duplex operation area, the device being located in a user equipment, as shown in FIG10 , and comprising:
- An acquisition unit 11 is used to acquire time domain and/or frequency domain position information of a duplex operation
- the determining unit 12 is configured to determine an area that meets the following conditions as a valid duplex operation area: being located in the duplex operation time domain and/or frequency domain position.
- the device for determining a duplex operation area provided in an embodiment of the present invention can determine a valid duplex operation area based on the duplex operation time domain and/or frequency domain position information, thereby meeting the actual requirement of using different uplink and downlink time slot ratios for different subbands of the same carrier.
- the device of this embodiment can be used to execute the technical solution of the above method embodiment. Its implementation principle and technical effect are similar and will not be repeated here.
- An embodiment of the present invention further provides a user equipment, the user equipment comprising:
- the memory stores instructions that can be executed by the at least one processor.
- the instructions are executed by the at least one processor so that the at least one processor can perform the above-mentioned method for determining the duplex operation area.
- An embodiment of the present invention further provides a chip, comprising:
- the memory stores instructions that can be executed by the at least one processor.
- the instructions are executed by the at least one processor so that the at least one processor can perform the above-mentioned method for determining the duplex operation area.
- An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the above-mentioned method for determining a duplex operation area is implemented.
- the above method can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium.
- the program When the program is executed, it can include the process of the embodiments of the above methods.
- the storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM).
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Abstract
本发明提供一种双工操作区域的确定方法、装置及用户设备。所述方法应用于用户设备,所述方法包括:获取双工操作时域和/或频域位置信息;将满足以下条件的区域确定为有效双工操作区域:位于所述双工操作时域和/或频域位置。本发明能够基于双工操作时域和/或频域位置信息,确定有效的双工操作区域。
Description
本发明涉及无线通信技术领域,尤其涉及一种双工操作区域的确定方法、装置及用户设备。
由于TDD(Time Division Duplexing,时分双工)系统上下行时隙配比的限制,导致TDD系统的传输时延较大。为了降低基站的实现复杂度,一个TDD载波的所有频域资源在同一时刻的传输方向需相同,同为上行或下行,即一个TDD载波不同频域资源的上下行时隙配比不能灵活配置。
随着业务的多元化,尤其是考虑垂直行业的业务需求,不同业务对上下行的传输需求不同,单一的上下行时隙配比不能满足不同业务的需求。
基于以上两点,同时考虑基站实现复杂度,出现了SBFD(Subband Full Duplex,子带全双工)的解决方案,即同一载波的不同子带采用不同的上下行时隙配比。
针对SBFD,可以有不同的形式,如图1所示,Slot n为纯DL符号,其中不包含上行子带,不允许上行传输;时隙Slot n+1/n+2/n+3内在DL符号基础上增加了一个上行子带,允许在此上行子带上UE传输上行,在除上行子带的位置上gNB传输下行;时隙n+4为纯UL符号,可以允许在slot n+4的频域位置上都进行UE的上行传输。其中,时隙内可以有符号D(用于下行传输)和U(用于上行传输),以及灵活符号X(用于下行或上行传输),也可以作为下行转换到上行的切换时间。
在双工操作的场景下,如何确定有效的双工操作区域,是本领域需要解决的技术问题。
发明内容
本发明提供的双工操作区域的确定方法、装置及用户设备,能够基于双工操作时域和/或频域位置信息,确定有效的双工操作区域。
第一方面,本发明提供一种双工操作区域的确定方法,所述方法应用于用户设备,所述方法包括:
获取双工操作时域和/或频域位置信息;
将满足以下条件的区域确定为有效双工操作区域:
位于所述双工操作时域和/或频域位置。
可选地,所确定的有效双工操作区域还需满足以下条件:
位于所述双工操作时域位置的符号为高层信令配置的下行符号或灵活符号,即有效双工操作符号。
可选地,所确定的有效双工操作区域还需满足以下条件中的至少一个:
所述灵活符号内的双工操作上行频域位置内没有动态下行调度;
所述灵活符号内的双工操作下行频域位置内没有动态上行调度。
可选地,所述获取双工操作时域和/或频域位置信息包括:获取高层信令配置的和/或动态指示的双工操作时域和/或频域位置信息。
可选地,若所获取的动态指示的双工操作时域和/或频域位置不同于所述高层信令配置的双工操作时域和/或频域位置,在确定有效双工操作区域时,以所述动态指示的双工操作时域和/或频域位置信息为准。
可选地,所述方法还包括:
当时隙内高层信令配置的双工操作时域和/或频域位置与上行符号有重叠时,将时隙内位于所述双工操作时域的所有符号所在的区域确定为非有效双工操作区域。
可选地,所述非有效双工操作区域为除所述有效双工操作区域以外的区域。
可选地,所述方法还包括:
获取时隙格式指示SFI指示的下行符号或灵活符号信息;
则所确定的有效双工操作区域还需满足以下条件:位于所述双工操作时域位置的符号为SFI指示的下行符号或灵活符号。
可选地,所述方法还包括:
将连续的从第一个有效双工操作符号到最后一个有效双工操作符号之间的区域确定为一段有效双工操作区域。
可选地,若所确定的此段有效双工操作区域之前或之后有非有效双工操作区域,则将此段有效双工操作区域内排除掉转换时间的区域确定为实际的有效双工操作区域,所述转换时间为预先配置的或者为默认值。
可选地,若下行符号或灵活符号区域有下行动态调度且与双工操作上行频域位置有重叠,所述方法还包括:
将此段有效双工操作区域内排除掉下行动态调度且与双工操作上行频域位置有重叠的区域确定为有效双工操作区域。
可选地,若灵活符号区域的非双工操作上行频域位置有上行动态调度,所述方法还包括:
将所述灵活符号区域的非双工操作上行频域位置有上行动态调度的区域确定为非有效双工操作区域。
可选地,若存在多段有效双工操作区域,则按照如下原则中的其中一个选择保留一个或多个有效双工操作区域:
原则1:将双工操作上行频域位置中有动态调度的有效双工操作区域作为高优先级进行保留;
原则2:将时间上较早的一个或多个有效双工操作区域进行保留;
原则3:将长度较长的一个多个有效双工操作区域进行保留。
第二方面,本发明提供一种双工操作区域的确定装置,所述装置位于用户设备,所述装置包括:
获取单元,用于获取双工操作时域和/或频域位置信息;
确定单元,用于将满足以下条件的区域确定为有效双工操作区域:位于所述双工操作时域和/或频域位置。
第三方面,本发明提供一种用户设备,所述用户设备包括:
至少一个处理器;以及
与所述至少一个处理器通信连接的存储器;其中,
所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行上述双工操作区域的确定方法。
第四方面,本发明提供一种芯片,所述芯片包括:
至少一个处理器;以及
与所述至少一个处理器通信连接的存储器;其中,
所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行上述双工操作区域的确定方法。
第五方面,本发明提供一种计算机可读存储介质,其中,所述计算机可读
存储介质存储有计算机指令,所述计算机指令被处理器执行时实现上述双工操作区域的确定方法。
本发明实施例提供的双工操作区域的确定方法、装置及用户设备,能够基于双工操作时域和/或频域位置信息,确定有效的双工操作区域,从而满足同一载波的不同子带采用不同的上下行时隙配比的实际需求。
图1为SBFD下各时隙中的符号形式示意图;
图2-3为NR系统的帧结构示意图;
图4-8为NR系统中时隙格式的示意图;
图9为本发明一实施例双工操作区域的确定方法的流程图;
图10为本发明一实施例双工操作区域的确定装置的结构示意图。
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
首先对本发明实施例所涉及的有关时隙格式的内容进行介绍。
3GPP NR(New Radio,新空口)系统的帧结构图如图2和图3所示,在时域长度为10ms的无线帧内,每个无线帧被分为10个同样大小的长度为1ms的子帧,由于子载波间隔不同,每个子帧可包含多个时隙,每个时隙由一定数量的符号构成,且符号个数由CP(Cyclic Prefix,循环前缀)类型决定。
NR中高层信令配置小区级时隙格式时,配置参考SCS(sub-carrier space,子载波间隔)μref,图样1以及可选图样2。其中图样1及图样2中共包含时隙配置周期P+P2,其中图样1中包含下行时隙个数dslots,下行时隙后下行符号个数dsym,上行时隙个数uslots,上行时隙前上行符号个数usym。图样2中包含上述元素,取值可不同。
图2是只配置图样1的示意图,参考SCS为15kHz,P为10ms。
图3是配置图样1和图样2的示意图,参考SCS为15kHz,P为4ms,P2为6ms。
与LTE的特殊子帧结构为固定10种下行、GP(Guard Period,保护间隔)和上行符号个数相比,NR中引入SF(Slot Format,时隙格式),包含某时隙中下行(用“D”表示)、灵活(flexible,用“F”表示)和上行(用“U”表示)符号个数。SF包含三种配置方式:使用高层信令小区级RRC(Radio Resource Control,无线资源控制)信令配置,使用UE专用RRC信令配置,或者使用PDCCH(Physical Downlink Control Channel,物理下行控制信道)动态将SFI(Slot Format Indication,时隙格式指示)发送给一组UE,即动态时隙格式指示(dynamic SFI)。PDCCH上承载的SFI信息可以指示一个或多个载波上一个或多个时隙的格式。UE监听到SFI后,获得索引信息且索引指向一个UE专用表格,可以获知时隙中哪些符号是“U(上行)”,哪些是“D(下行)”,哪些是“F(灵活)”。上述UE专用表格是由“单个时隙格式”表格中配置及组合而成。“单个时隙格式”表格包含NR中所有可以支持的时隙格式(少于256种)。目前已经确定“单个时隙格式”表格中的时隙格式最多包含每时隙内两个D/U(下行/上行)切换点。
如图4-6所示,一个时隙内具有0切换点,其中,图4中有14个下行符号,图5中有14个上行符号,图6中有14个灵活符号。
如图7所示,一个时隙内1个D/U切换点,时隙起始于0个或多个下行符号,结束于0个或多个上行符号,中间为灵活符号;且至少一个灵活符号,及一个下行或一个上行符号。
如图8所示,一个时隙内2个D/U切换点,时隙前7个符号起始于0个或多个下行符号,结束于至少1个上行符号在符号6,中间为灵活符号;时隙后7个符号起始于0个或多个下行符号,结束于0个或多个上行符号,中间为0个或多个灵活符号。
本发明实施例提供一种双工操作区域的确定方法,所述方法应用于用户设备,如图9所示,所述方法包括:
S11、获取双工操作时域和/或频域位置信息。
S12、将满足以下条件的区域确定为有效双工操作区域:
位于所述双工操作时域和/或频域位置。
本发明实施例提供的双工操作区域的确定方法,能够基于双工操作时域和/或频域位置信息,确定有效的双工操作区域,从而满足同一载波的不同子带采
用不同的上下行时隙配比的实际需求。
进一步地,所确定的有效双工操作区域还需满足以下条件:
位于所述双工操作时域位置的符号为高层信令配置的下行符号或灵活符号,即有效双工操作符号。
进一步地,所确定的有效双工操作区域还需满足以下条件中的至少一个:
所述灵活符号内的双工操作上行频域位置内没有动态下行调度;
所述灵活符号内的双工操作下行频域位置内没有动态上行调度。
其中,所述双工操作上行频域位置是指双工操作符号内可用于UE上行传输的频域部分,所述双工操作下行频域位置下行是指双工操作符号内可用于gNB下行传输的行频域部分。
可选地,所述获取双工操作时域和/或频域位置信息包括:获取高层信令配置的和/或动态指示的双工操作时域和/或频域位置信息。
若所获取的动态指示的双工操作时域和/或频域位置不同于所述高层信令配置的双工操作时域和/或频域位置,在确定有效双工操作区域时,以所述动态指示的双工操作时域和/或频域位置信息为准。
可选地,当时隙内高层信令配置的双工操作时域和/或频域位置与上行符号有重叠时,将时隙内位于所述双工操作时域的所有符号所在的区域确定为非有效双工操作区域。其中,所述非有效双工操作区域为除所述有效双工操作区域以外的区域。
可选地,所述方法还包括:
获取时隙格式指示SFI指示的下行符号或灵活符号信息;
则所确定的有效双工操作区域还需满足以下条件:位于所述双工操作时域位置的符号为SFI指示的下行符号或灵活符号。
可选地,所述方法还包括:
将连续的从第一个有效双工操作符号到最后一个有效双工操作符号之间的区域确定为一段有效双工操作区域。
可选地,若所确定的此段有效双工操作区域之前或之后有非有效双工操作区域,则将此段有效双工操作区域内排除掉转换时间的区域确定为实际的有效双工操作区域,所述转换时间为预先配置的或者为默认值。
可选地,若下行符号或灵活符号区域有下行动态调度且与双工操作上行频
域位置有重叠,所述方法还包括:
将此段有效双工操作区域内排除掉下行动态调度且与双工操作上行频域位置有重叠的区域确定为有效双工操作区域。
可选地,若灵活符号区域的非双工操作上行频域位置有上行动态调度,所述方法还包括:
将所述灵活符号区域的非双工操作上行频域位置有上行动态调度的区域确定为非有效双工操作区域。
上述所提到的双工可以是子带全双工(不重叠子带),也可以是全双工(频域位置可以重叠),以下实施例以子带全双工(SBFD)为例进行说明。
下面结合具体实施例对本发明双工操作区域的确定方法进行详细说明。
实施例1
在本实施例中,基站向UE只提供了高层信令配置的SBFD时域位置。
在此场景下,所确定的有效SBFD符号需要满足以下几个条件:位于所述高层信令配置的的SBFD时域位置,且为高层信令配置的下行符号或灵活符号及SFI信息指示的下行符号或灵活符号(如果存在),且对应下行符号或灵活符号符号内无SBFD频域位置的动态下行调度,且对应灵活符号内无非SBFD频域位置的动态上行调度。
此时,将同一时隙内、连续的从第一个SBFD有效符号到最后一个SBFD有效符号之间的区域确定为一段有效SBFD区域。
可选地,高层信令配置SBFD时域位置的方式可以为以下方式中的其中一个:
以TDD common的周期为准配置SBFD时域位置;
以TDD common的参考SCS为准配置SBFD时域位置;
SBFD位置以时隙个数+符号个数的方式配置;
SBFD位置以每时隙的方式配置,指示每时隙内SBFD从前符号0开始到后的符号个数。
当基站通过SFI向UE指示下行符号或灵活符号信息时,下面分情况进行说明。
情况1:SFI指示的下行符号或灵活符号区域小于SBFD时域区域
当高层信令配置的上行子带时域使能全时隙或部分时隙,而后续高层信令
或SFI将部分灵活符号置为上行符号时,UE会根据高层信令或SFI指示进行符号级修改,确定实际生效的上行子带。其中,所述上行子带指的是双工操作上行频域位置。
可选地,当SBFD时域位置只有高层信令配置,且与专用信令相互关系时,在确定有效SBFD区域时,可以参照本实施例中的实现方式执行。
具体地,UE可以按照以下方案中的其中一种,或者按照方案1和方案2中的其中一种以及方案3和方案4中的其中一种确定实际生效的上行子带(如表1为例):
方案1:将全部下行符号或灵活符号内的上行子带生效,将全部上行符号内的上行子带不生效,其中,所述上行符号的一个或多个符号具有预先配置的或默认的转换时间;
方案2:根据所述SFI指示的或高层信令配置的上行符号前上行子带不生效的符号个数(即保留gap),将除所述上行子带不生效的符号以外的下行符号或灵活符号生效;也就是说,若所确定的有效SBFD区域之前有非有效SBFD区域,则将此段有效SBFD区域内排除掉转换时间的区域确定为实际的有效SBFD区域,所述转换时间为预先配置的或者为默认值。
方案3:根据所述SFI指示的或默认的下行符号后上行子带不生效的符号个数(即保留gap),将除所述上行子带不生效的符号以外的下行符号或灵活符号符号生效;也就是说,若所确定的有效SBFD区域之后有非有效SBFD区域,则将此段有效SBFD区域内排除掉转换时间的区域确定为实际的有效SBFD区域,所述转换时间为预先配置的或者为默认值。
方案4:将全部下行符号或灵活符号符号内的上行子带生效,将全部上行符号内的上行子带不生效,其中,所述下行符号前面的一个或多个符号具有预先配置的或默认的转换时间。
需要说明的是,本发明实施例中所有涉及gap的相关部分,即确定SBFD区域后均可采用上述方案1、2、3、4,后续不再一一列出。
表1
情况2:SFI指示的下行符号或灵活符号区域大于等于SBFD时域区域
当高层信令SBFD指示为符号级时,若SFI指示下行符号或灵活符号的区域大于上行子带,如全为下行符号,则UE可以按照上述方案1、2、3中的其中一种,或者按照上述方案1和方案2中的其中一种以及上述方案3确定实际生效的上行子带(如表2为例)
表2
可选地,当SFI指示的下行符号或灵活符号区域有2段时,按照以下原则确定有效SBFD符号(如表3和4为例):
当下行符号或灵活符号区域大于等于SBFD区域时,以SBFD区域为准;
当下行符号或灵活符号区域小于SBFD区域时,以下行符号或灵活符号区
域为准,此时会出现多段的情况;
当下行符号或灵活符号区域中的一段大于SBFD、另一段小于等于SBFD区域时,对于每段下行符号或灵活符号区域,以所述下行符号或灵活符号区域与SBFD区域相比较小的为准。
表3
表4
可选地,若下行符号或灵活符号内有下行动态调度对SBFD时域位置影响,且可能存在SFI或者不存在SFI:
当下行符号或灵活符号内有下行动态调度且与上行子带有重叠时,UE将连续的从第一个无下行动态调度的SBFD有效符号到最后一个无下行动态调度的SBFD有效符号之间的区域确定为实际生效的上行子带。
此时需要考虑是否会有多段SBFD区域:
若存在多个下行调度,或者SFI指示的有两个切换点,则会出现多段SBFD区域,对于每段SBFD区域,将连续的从第一个无下行动态调度的SBFD有效符号到最后一个无下行动态调度的SBFD有效符号之间的区域确定为实际生效的上行子带(如表5-9为例)。
可选地,UE可以按照如下原则中的其中一个选择保留一个或多个SBFD区域:
原则1:将上行子带中有动态调度的一个或多个上行符号作为高优先级进行保留,其它符号上的上行子带中即使为上行(如高层信令配置的上行),也不会发送;
原则2:将时间上最早的一个,或较早的多个SBFD区域进行保留;
原则3:将长度最长的一个,或较长的多个SBFD区域进行保留。
表5
表6
表7
表8:SFI限制D+F
表9:两段SFI限制D+F
可选地,若F符号内有上行动态调度对SBFD时域位置调度影响,且可能存在SFI或者不存在SFI,此时,将所述灵活符号区域的非上行子带位置有上行动态调度的符号不作为有效SBFD符号(如表10为例)。其中,表格中的下行子带指的是双工操作下行频域位置。
表10
实施例2
在本实施例中,基站向UE提供了高层信令配置的SBFD时域位置及动态指示的SBFD时域位置。
在此场景下,所确定的有效SBFD符号需要满足以下几个条件:位于所述高层信令配置的SBFD时域位置和/或动态指示的SBFD时域位置,且为高层信令配置的下行符号或灵活符号及SFI指示的下行符号或灵活符号(如果存在),且对应下行符号或灵活符号内无SBFD频域位置的动态下行调度,且对应灵活符号内无非SBFD频域位置的动态上行调度。
此时,将同一时隙内、连续的从第一个SBFD有效符号到最后一个SBFD有效符号之间的区域确定为一段有效SBFD区域。
可选地,动态指示SBFD时域位置的方式可以为:在DCI如SFI中新增指示信息。
具体地,可以在现有各DL/UL/SUL(补充上行)时隙格式信息基础上,增加SBFD信息,具体可以采用以下方式:
GC-PDCCH(组播PDCCH)监听周期内是否应用上行子带配置,1bit;
GC-PDCCH监听周期内每个时隙是否应用上行子带配置,bitmap(位图)长度为GC-PDCCH周期(仍为每时隙的粒度);
GC-PDCCH中新增字段指示一个index(索引),此index对应表格的某行,此行包含一个或多个值,为此周期中上行子带是否应用的指示,如全为1,则此周期内上行子带全部使用,若对应位为0,则某时隙上行子带不应用(仍为每时隙的粒度)。
当基站通过SFI向UE指示下行符号或灵活符号信息时,下面分情况进行说明。
情况1:动态指示的SBFD时域位置覆盖高层信令配置的SBFD时域位置
此时,可以按照如表11为例所示的方式确定实际生效的上行子带。
表11
情况2:SFI指示的下行符号或灵活符号区域小于SBFD时域区域
此时,UE可以按照如下原则中的其中一个确定实际生效的上行子带:
原则1:当动态指示SBFD时域区域是符号级指示时,动态指示SBFD时域区域不会超出SFI指示的下行符号或灵活符号区域,即动态指示需要根据SFI的信令指示哪些符号可用于SBFD(如表12为例)。
表12
原则2:当动态指示SBFD时域区域是时隙级指示时,实际上行子带会根据SFI及动态指示进行符号级修改(如表13为例),具体可以参见上述方案1、2、
3,在此不再赘述。
表13
情况3:SFI指示的下行符号或灵活符号区域大于等于SBFD时域区域
此时SBFD时域区域会按照上行子带动态指示的时域位置确定(如表14为例)。
表14
可选地,当SFI指示的下行符号或灵活符号区域有2段时,UE确定实际生效的上行子带的方式与实施例1相同,在此不再赘述。
可选地,当下行符号或灵活符号内有下行动态调度对SBFD时域位置影响,且可能存在SFI或者不存在SFI时,UE确定实际生效的上行子带的方式与实施
例1相同,在此不再赘述。
可选地,当灵活符号内有上行动态调度对SBFD时域位置调度影响,且可能存在SFI或者不存在SFI时,UE确定实际生效的上行子带的方式与实施例1相同,在此不再赘述。
本发明实施例还提供一种双工操作区域的确定装置,所述装置位于用户设备,如图10所示,所述装置包括:
获取单元11,用于获取双工操作时域和/或频域位置信息;
确定单元12,用于将满足以下条件的区域确定为有效双工操作区域:位于所述双工操作时域和/或频域位置。
本发明实施例提供的双工操作区域的确定装置,能够基于双工操作时域和/或频域位置信息,确定有效的双工操作区域,从而满足同一载波的不同子带采用不同的上下行时隙配比的实际需求。
本实施例的装置,可以用于执行上述方法实施例的技术方案,其实现原理和技术效果类似,此处不再赘述。
本发明实施例还提供一种用户设备,所述用户设备包括:
至少一个处理器;以及
与所述至少一个处理器通信连接的存储器;其中,
所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行上述双工操作区域的确定方法。
本发明实施例还提供一种芯片,所述芯片包括:
至少一个处理器;以及
与所述至少一个处理器通信连接的存储器;其中,
所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行上述双工操作区域的确定方法。
本发明实施例还提供一种计算机可读存储介质,其中,所述计算机可读存储介质存储有计算机指令,所述计算机指令被处理器执行时实现上述双工操作区域的确定方法。
本领域普通技术人员可以理解实现上述方法实施例中的全部或部分流程,
是可以通过计算机程序来指令相关的硬件来完成,所述的程序可存储于一计算机可读取存储介质中,该程序在执行时,可包括如上述各方法的实施例的流程。其中,所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory,ROM)或随机存储记忆体(Random Access Memory,RAM)等。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应该以权利要求的保护范围为准。
Claims (17)
- 一种双工操作区域的确定方法,所述方法应用于用户设备,其特征在于,所述方法包括:获取双工操作时域和/或频域位置信息;将满足以下条件的区域确定为有效双工操作区域:位于所述双工操作时域和/或频域位置。
- 根据权利要求1所述的方法,其特征在于,所确定的有效双工操作区域还需满足以下条件:位于所述双工操作时域位置的符号为高层信令配置的下行符号或灵活符号,即有效双工操作符号。
- 根据权利要求2所述的方法,其特征在于,所确定的有效双工操作区域还需满足以下条件中的至少一个:所述灵活符号内的双工操作上行频域位置内没有动态下行调度;所述灵活符号内的双工操作下行频域位置内没有动态上行调度。
- 根据权利要求1至3中任一项所述的方法,其特征在于,所述获取双工操作时域和/或频域位置信息包括:获取高层信令配置的和/或动态指示的双工操作时域和/或频域位置信息。
- 根据权利要求4所述的方法,其特征在于,若所获取的动态指示的双工操作时域和/或频域位置不同于所述高层信令配置的双工操作时域和/或频域位置,在确定有效双工操作区域时,以所述动态指示的双工操作时域和/或频域位置信息为准。
- 根据权利要求4所述的方法,其特征在于,所述方法还包括:当时隙内高层信令配置的双工操作时域和/或频域位置与上行符号有重叠时,将时隙内位于所述双工操作时域的所有符号所在的区域确定为非有效双工操作区域。
- 根据权利要求6所述的方法,其特征在于,所述非有效双工操作区域为除所述有效双工操作区域以外的区域。
- 根据权利要求4所述的方法,其特征在于,所述方法还包括:获取时隙格式指示SFI指示的下行符号或灵活符号信息;则所确定的有效双工操作区域还需满足以下条件:位于所述双工操作时域 位置的符号为SFI指示的下行符号或灵活符号。
- 根据权利要求8所述的方法,其特征在于,所述方法还包括:将连续的从第一个有效双工操作符号到最后一个有效双工操作符号之间的区域确定为一段有效双工操作区域。
- 根据权利要求9所述的方法,其特征在于,若所确定的此段有效双工操作区域之前或之后有非有效双工操作区域,则将此段有效双工操作区域内排除掉转换时间的区域确定为实际的有效双工操作区域,所述转换时间为预先配置的或者为默认值。
- 根据权利要求9所述的方法,其特征在于,若下行符号或灵活符号区域有下行动态调度且与双工操作上行频域位置有重叠,所述方法还包括:将此段有效双工操作区域内排除掉下行动态调度且与双工操作上行频域位置有重叠的区域确定为有效双工操作区域。
- 根据权利要求8所述的方法,其特征在于,若灵活符号区域的非双工操作上行频域位置有上行动态调度,所述方法还包括:将所述灵活符号区域的非双工操作上行频域位置有上行动态调度的区域确定为非有效双工操作区域。
- 根据权利要求6所述的方法,其特征在于,若存在多段有效双工操作区域,则按照如下原则中的其中一个选择保留一个或多个有效双工操作区域:原则1:将双工操作上行频域位置中有动态调度的有效双工操作区域作为高优先级进行保留;原则2:将时间上较早的一个或多个有效双工操作区域进行保留;原则3:将长度较长的一个多个有效双工操作区域进行保留。
- 一种双工操作区域的确定装置,所述装置位于用户设备,其特征在于,所述装置包括:获取单元,用于获取双工操作时域和/或频域位置信息;确定单元,用于将满足以下条件的区域确定为有效双工操作区域:位于所述双工操作时域和/或频域位置。
- 一种用户设备,其特征在于,所述用户设备包括:至少一个处理器;以及与所述至少一个处理器通信连接的存储器;其中,所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行权利要求1至13中任一项所述的方法。
- 一种芯片,其特征在于,所述芯片包括:至少一个处理器;以及与所述至少一个处理器通信连接的存储器;其中,所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行权利要求1至13中任一项所述的方法。
- 一种计算机可读存储介质,其中,所述计算机可读存储介质存储有计算机指令,所述计算机指令被处理器执行时实现如权利要求1至13中任一项所述的方法。
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| US20180242317A1 (en) * | 2015-08-25 | 2018-08-23 | Idac Holdings, Inc. | Framing, scheduling, and synchronization in wireless systems |
| CN111713157A (zh) * | 2018-02-16 | 2020-09-25 | 高通股份有限公司 | 物理下行链路控制信道哈希函数更新 |
| CN114667755A (zh) * | 2022-02-24 | 2022-06-24 | 北京小米移动软件有限公司 | 数据传输方法和装置 |
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| US20180242317A1 (en) * | 2015-08-25 | 2018-08-23 | Idac Holdings, Inc. | Framing, scheduling, and synchronization in wireless systems |
| CN111713157A (zh) * | 2018-02-16 | 2020-09-25 | 高通股份有限公司 | 物理下行链路控制信道哈希函数更新 |
| CN114667755A (zh) * | 2022-02-24 | 2022-06-24 | 北京小米移动软件有限公司 | 数据传输方法和装置 |
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