WO2024088174A1 - 保护间隔的确定方法及装置 - Google Patents
保护间隔的确定方法及装置 Download PDFInfo
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- WO2024088174A1 WO2024088174A1 PCT/CN2023/125658 CN2023125658W WO2024088174A1 WO 2024088174 A1 WO2024088174 A1 WO 2024088174A1 CN 2023125658 W CN2023125658 W CN 2023125658W WO 2024088174 A1 WO2024088174 A1 WO 2024088174A1
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- Prior art keywords
- time domain
- information
- guard interval
- determining
- frequency domain
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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
- 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
Definitions
- the present disclosure relates to the field of communication technology, and in particular to a method and device for determining a protection interval.
- the uplink and downlink switching time is reserved through the explicit guard period (GP), and the frequency domain range of GP runs through the entire carrier.
- GP guard period
- the base station reserves the guard interval by configuring a "Flexible symbol".
- the "Flexible symbol” is configured according to the bandwidth part (Bandwidth Part, BWP), that is, the frequency domain range of the "Flexible symbol” runs through the entire BWP.
- BWP Bandwidth Part
- the embodiments of the present disclosure provide a method and device for determining a guard interval, so as to solve the defect of resource waste in the guard interval design in the prior art, reduce the guard interval overhead, and improve resource utilization.
- an embodiment of the present disclosure provides a method for determining a guard interval, which is applied to a terminal device, including:
- the first information is used to indicate the frequency corresponding to the guard interval based on the first frequency domain unit. domain resources and/or time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain unit includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the method comprises:
- the determining the guard interval based on the first information includes: determining a time domain length corresponding to the guard interval based on the first rule and the subcarrier spacing, the subcarrier spacing being determined based on the subcarrier spacing information; or
- determining the guard interval based on the first information includes: determining the time domain length corresponding to the guard interval based on the time domain length information.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- the method comprises:
- the determining the guard interval based on the first information includes: determining the time domain position of the preset guard interval as the time domain position of the guard interval; or
- determining the guard interval based on the first information includes: determining the time domain position indicated by the time domain position information as the time domain position of the guard interval.
- the time domain position of the guard interval is any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the method further comprises:
- the first operation includes any one of the following:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- an embodiment of the present disclosure further provides a method for determining a protection interval, which is applied to a network device, including:
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain resource includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the first information includes time domain length information or subcarrier spacing information
- the time domain length information is used to determine the time domain length corresponding to the protection interval
- the subcarrier spacing information is used to determine the subcarrier spacing
- the subcarrier spacing is used by the terminal device to determine the time domain length corresponding to the protection interval according to the first rule.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- determining the protection interval includes:
- the time domain position of the preset guard interval is determined as the time domain position of the guard interval.
- the time domain position of the guard interval includes any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the method further comprises:
- the second operation includes:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- the present disclosure also provides a device for determining a protection interval, which is applied to a terminal.
- Equipment including:
- a first determining unit configured to determine a protection interval based on the first information
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain unit includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the first determination unit is further used to determine the time domain length corresponding to the guard interval based on the first rule and the subcarrier spacing when the first information includes a first rule and subcarrier spacing information, and the subcarrier spacing is determined based on the subcarrier spacing information; or
- the first determination unit is further configured to determine the time domain length corresponding to the guard interval based on the time domain length information when the first information includes time domain length information.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- the first determining unit is further configured to, when the first information includes a time domain position of a preset guard interval, determine the time domain position of the preset guard interval as the time domain position of the guard interval; or
- the first determination unit is further configured to determine the time domain length corresponding to the guard interval based on the time domain length information when the first information includes time domain length information.
- the time domain position of the guard interval is any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the device further comprises:
- a first receiving unit configured to receive scheduling information sent by a network device and used to indicate a first resource, where the first resource is used for first data transmission;
- the first determination unit is further used to determine whether there is a resource conflict between the first resource and the resource corresponding to the protection interval based on the protection interval and the scheduling information, and perform a first operation if there is a resource conflict.
- the device further comprises: a first operating unit;
- the first operation unit is used to perform any one of the following first operations:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- an embodiment of the present disclosure further provides a device for determining a protection interval, which is applied to a network device, including:
- a second determining unit configured to determine a guard interval
- the second determining unit is further configured to determine first information based on the protection interval
- a second sending unit configured to send the first information to a terminal device
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain resource includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the first information includes time domain length information or subcarrier spacing information
- the time domain length information is used to determine the time domain length corresponding to the protection interval
- the subcarrier spacing information is used to determine the subcarrier spacing
- the subcarrier spacing is used by the terminal device to determine the time domain length corresponding to the protection interval according to the first rule.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- the second determining unit is further used to determine the time domain position of a preset guard interval as the time domain position of the guard interval.
- the time domain position of the guard interval includes any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the second sending unit is further used to send scheduling information to the terminal device, and the scheduling information is used to indicate the first resource.
- the second determining unit is further used to determine whether there is a resource conflict between the first resource used for the first data transmission and the resource corresponding to the protection interval, and perform a second operation if there is a resource conflict.
- the device further comprises: a second operating unit;
- the second operation unit is used to perform any one of the following second operations:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- an embodiment of the present disclosure further provides a terminal device, including a memory, a transceiver, and a processor, wherein:
- a memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer program in the memory and implementing the method for determining the protection interval as described in the first aspect above.
- an embodiment of the present disclosure further provides a network device, including a memory, a transceiver, and a processor, wherein:
- a memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer program in the memory and implementing the method for determining the protection interval as described in the second aspect above.
- an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, wherein the computer program is used to enable the processor to execute the method for determining the protection interval as described in the first aspect or the method for determining the protection interval as described in the second aspect.
- the method and device for determining the protection interval provided by the embodiments of the present disclosure determine the protection interval based on first information, the first information is used to indicate the frequency domain resources corresponding to the protection interval based on a first frequency domain unit and/or to indicate the time domain resources corresponding to the protection interval, the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP, and the protection interval can be flexibly determined.
- a shorter GP is configured.
- TA-offset is equal to 0, the GP can be configured to 0.
- the method for determining the protection interval provided by the embodiments of the present disclosure can reduce the protection interval overhead and improve resource utilization.
- FIG1 is a schematic diagram of the uplink and downlink switching time of a terminal provided by the present disclosure
- FIG2 is a schematic diagram of cross-link interference provided by the present disclosure.
- FIG3 is one of the scene schematic diagrams provided by the present disclosure.
- FIG4 is a second schematic diagram of a scenario provided by the present disclosure.
- FIG5 is a schematic diagram of a flow chart of a method for determining a guard interval provided in an embodiment of the present disclosure
- FIG6 is one of the time domain position schematic diagrams provided by an embodiment of the present disclosure.
- FIG7 is a second flow chart of a method for determining a guard interval provided in an embodiment of the present disclosure.
- FIG8 is one of the application schematic diagrams provided by the embodiment of the present disclosure.
- FIG9 is a second application schematic diagram provided by an embodiment of the present disclosure.
- FIG10 is a schematic diagram of the GP time domain length provided by an embodiment of the present disclosure.
- FIG11 is a second schematic diagram of a time domain position provided by an embodiment of the present disclosure.
- FIG12 is a third schematic diagram of a time domain position provided in an embodiment of the present disclosure.
- FIG13 is a schematic diagram of a structure of a device for determining a guard interval according to an embodiment of the present disclosure
- FIG14 is a second schematic diagram of the structure of the device for determining the guard interval provided in an embodiment of the present disclosure.
- FIG15 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present disclosure.
- FIG. 16 is a schematic diagram of the structure of a network device provided in an embodiment of the present disclosure.
- the term "and/or” describes the association relationship of associated objects, indicating that three relationships may exist.
- a and/or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.
- the character "/" generally indicates that the associated objects before and after are in an "or” relationship.
- plurality in the embodiments of the present disclosure refers to two or more than two, and other quantifiers are similar thereto.
- 5G Fifth Generation Mobile Communication Technology
- applicable systems may be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new radio (NR) system, etc.
- GSM global system of mobile communication
- CDMA code division multiple access
- WCDMA wideband code division multiple access
- GPRS general packet radio service
- LTE long term evolution
- FDD LTE frequency division duplex
- TDD LTE time division duplex
- LTE-A long term evolution advanced
- UMTS universal mobile telecommunication system
- WiMAX worldwide interoperability for microwave access
- NR new radio
- the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
- the names of terminal devices may also be different.
- the terminal device may be called a user equipment (UE).
- UE user equipment
- a wireless terminal device may communicate with one or more core networks (CN) via a radio access network (RAN).
- CN core networks
- RAN radio access network
- the wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device.
- a wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, Access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), and user device (user device) are not limited in the embodiments of the present disclosure.
- the network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells that provide services to the terminal.
- the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
- the network device can be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network.
- IP Internet Protocol
- the network device can also coordinate the attribute management of the air interface.
- the network device involved in the embodiments of the present disclosure may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a Home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., but is not limited in the embodiments of the present disclosure.
- network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and the distributed unit may also be geographically separated.
- Network devices and terminal devices can each use one or more antennas for multiple input multiple output (MIMO) transmission.
- MIMO transmission can be single user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO).
- MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.
- the frequency domain resources are divided into multiple sub-bands in the relevant technology, which do not overlap with each other.
- the uplink and downlink frequency domain resources are located in different sub-bands respectively.
- This technology is called non-overlapping sub-band full duplex (non-overlapping sub-band full duplex), which can be referred to as sub-band full-duplex.
- FIG. 1 is a schematic diagram of the terminal uplink-downlink switching time provided by the present disclosure.
- the schematic diagram corresponding to the frame structure refers to the configured frame structure
- the schematic diagram corresponding to the base station side refers to the frame structure actually received or sent by the base station side
- the schematic diagram corresponding to the terminal side refers to the frame structure actually received or sent by the terminal side.
- the horizontal direction can represent time domain resources
- the vertical direction represents frequency domain resources.
- UL represents uplink
- GP represents guard period
- the shaded part represents uplink subband.
- the blank dashed line frame part inside represents that the UE is scheduled in the full downlink symbol.
- TA_offset represents the timing advance
- T1 represents the time between the terminal side sending and the base station side receiving
- T2 represents the time between the base station side sending and the terminal side receiving.
- FIG2 is a schematic diagram of cross link interference (CLI) provided by the present disclosure.
- the schematic diagram corresponding to the frame structure refers to the configured frame structure
- the schematic diagram corresponding to the base station side refers to the frame structure actually received or sent by the base station side
- the schematic diagram corresponding to the terminal side refers to the frame structure actually received or sent by the terminal side.
- the horizontal direction can represent time domain resources
- the vertical direction represents frequency domain resources.
- UL represents uplink
- GP represents guard period.
- FIG2 includes two terminals: UE1 and UE2.
- the blank dashed box part inside represents that UE1 is scheduled in the full downlink resource, and the shaded part represents that UE2 is scheduled in the UL sub-band resource.
- T1 represents the transmission delay between UE2 and the base station
- T2 represents the transmission delay between UE1 and the base station side.
- the uplink transmission of UE2 will cause interference to the downlink reception of UE1.
- the guard interval is reserved by the base station, that is, the base station does not schedule channel or signal transmission on the resources corresponding to the guard interval.
- This method is based on downlink control information (Downlink Single transmission dynamically scheduled by DCI (Configured Grant pusch Physical Uplink Shared CHannel, CG-PUSCH) and Semi-Persistent Scheduling-Physical Downlink Shared CHannel, SPS-PDSCH) is effective, that is, the base station avoids the protection interval position when configuring the single transmission resources.
- DCI Configured Grant pusch Physical Uplink Shared CHannel, CG-PUSCH
- SPS-PDSCH Semi-Persistent Scheduling-Physical Downlink Shared CHannel
- RRC Radio Resource Control
- CG-PUSCH Physical Uplink Shared CHannel
- SPS-PDSCH semi-persistent scheduling-Physical Downlink Shared CHannel
- the position of Guard Period is predefined, that is, for a certain TDD configuration, the position of GP is fixed, located between the downlink symbol and the uplink symbol, and the frequency domain range of GP runs through the entire carrier;
- the base station reserves the guard interval by configuring "Flexible symbol”.
- "Flexible symbol” is configured according to the bandwidth part (Bandwidth Part, BWP).
- BWP Bandwidth Part
- FIG3 is one of the scene diagrams provided by the present disclosure
- FIG4 is another scene diagram provided by the present disclosure.
- a shorter GP is required or no GP is required. The detailed reasons are as follows:
- each terminal pair includes a cell center UE and a cell edge UE, and since the two UEs are far apart, even if the uplink of UE2 and the downlink of UE1 as shown in FIG2 collide, due to the large path loss, strong cross interference will not be generated. Therefore, the GP for this type of UE can be configured to 0.
- T1 and T2 shown in FIG. 2 are small or close to 0.
- a shorter GP can be configured for the GP of such UE, and when TA-offset is equal to 0, the GP can be configured to 0.
- some UEs may use the downlink subband resources.
- For source transmission no conversion time is required from the full downlink symbol to the downlink subband, so there is no need to reserve GP within the frequency domain resource range of the downlink subband.
- the GP can be configured with a shorter GP, and when the timing advance-offset (TA-offset) is equal to 0, the GP can be configured to 0. Therefore, the design of GP throughout the entire carrier or BWP has the problem of wasting resources.
- TA-offset timing advance-offset
- the embodiments of the present disclosure provide a method for determining a guard interval, which can configure the frequency domain position and time domain length of the guard interval according to RB/RB group/subband; and/or, predefine the time domain position of the guard interval or semi-statically configure/dynamically indicate the time domain position of the guard interval, thereby realizing flexible configuration of the guard interval and avoiding waste of resources.
- FIG5 is a flowchart of a method for determining a guard interval provided in an embodiment of the present disclosure. As shown in FIG5 , an embodiment of the present disclosure provides a method for determining a guard interval, which can be applied to a terminal device, including:
- Step 510 determining a protection interval based on the first information
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first frequency domain unit refers to a basic resource unit for configuring or determining a guard interval, and the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first information is used to instruct the terminal device to determine the guard interval using the first frequency domain unit as a basic unit.
- the first information may indicate the frequency domain resource corresponding to the guard interval by indicating the position of each first frequency domain unit.
- the first information may also indicate the time domain information of the guard interval.
- the time domain information includes the time domain length and/or time domain position of the guard interval.
- the frequency domain width of the guard interval may run through the BWP/carrier; when the total frequency domain width of multiple first frequency domain units is less than the BWP/carrier, the frequency domain width of the guard interval determined by the first frequency domain unit may not run through the BWP/carrier, that is, the guard interval determined based on the frequency domain width of the first frequency domain unit may run through the entire BWP/carrier, or may not run through the entire BWP/carrier, that is, the frequency domain resources corresponding to the guard interval may be equal to the frequency domain resources occupied by the BWP/carrier, or may be less than the frequency domain resources occupied by the BWP/carrier.
- the first information may be one piece of information or a group of information consisting of multiple pieces of information; the first information may be predefined, such as predefined by a protocol. In the case where the first information is predefined, the terminal device may directly determine the protection interval based on the predefined first information; the first information may be sent by a network device to a terminal device, such as the terminal device may receive the first information through RRC signaling. It should be understood that the case where the terminal device obtains the first information sent by the network device through a relay device or the like also belongs to receiving the first information sent by the network device. It should be understood that in the case where the first information includes multiple pieces of information, some of the multiple pieces of information may be predefined and some may be sent by the network device; or all of them may be predefined or all of them may be sent by the network device.
- the method for determining the protection interval provided in the embodiment of the present disclosure determines the protection interval based on first information, the first information is used to indicate the frequency domain resources corresponding to the protection interval based on a first frequency domain unit and/or is used to indicate the time domain resources corresponding to the protection interval, the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP, the method for determining the protection interval provided in the embodiment of the present disclosure can flexibly determine the protection interval, exemplarily, a shorter GP is configured, when TA-offset is equal to 0, the GP can be configured to 0, the method for determining the protection interval provided in the embodiment of the present disclosure can reduce the protection interval overhead and improve resource utilization.
- the first information is used to indicate the time domain resources corresponding to the guard interval by indicating the time domain resources corresponding to the first frequency domain unit.
- the first information may indicate the time domain resources corresponding to each first frequency domain unit, and the time domain resources corresponding to all first frequency domain units are the time domain resources corresponding to the guard interval.
- the time domain resources corresponding to each first frequency domain unit may be the same or different.
- the first information may indicate the position of each RB where the terminal device guard interval is located, and the first information may indicate the time domain information corresponding to each RB.
- the time domain information of the guard interval can be determined through the time domain information corresponding to all RBs.
- the first frequency domain unit is an RB or an RB group
- the time domain resources may be configured according to the RB or the RB group, so that different time domain lengths may be configured on different RBs or RB groups.
- GP1 corresponds to UE1
- GP2 corresponds to UE2
- GP1 and GP2 correspond to 5 first frequency domain units respectively
- each first frequency domain unit in GP1 can be configured with 1 time unit
- each first frequency domain unit in GP2 can be configured with 2 time units, so the time domain lengths of the protection intervals corresponding to UE1 and UE2 are different, and the time unit can be a symbol.
- the above is an example for the convenience of understanding the present disclosure, and the embodiments of the present disclosure do not limit the time unit corresponding to each first frequency domain unit.
- the method for determining the guard interval provided in the embodiment of the present disclosure can configure the time domain resources of the guard interval on each first frequency domain unit, and can configure different time domain resources of the guard interval for different first frequency domain units to match the different guard intervals required by different UEs. Compared with the configuration according to the maximum guard interval requirement within the entire sub-band range, it can reduce the resource overhead and spectrum utilization reduction caused by the guard interval; exemplarily, a shorter GP is configured in some RBs, and when TA-offset is equal to 0, the GP can be configured to 0.
- the method for determining the guard interval provided in the embodiment of the present disclosure can reduce the guard interval overhead and improve resource utilization.
- the first frequency domain unit includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the basic unit for determining the protection interval is the resource block, and the terminal device can determine K consecutive or discontinuous resource blocks as the frequency domain resources corresponding to the protection interval.
- RB group it means that the basic unit for determining the protection interval is RB group, and RB group is composed of multiple RBs.
- the implementation of this disclosure does not limit the number of RBs constituting RB group.
- the size of RB group in the embodiment of this disclosure can be different from the RB combination (Resource Block Group, RBG) in the related art.
- RBG is a resource unit allocated for service channel resources.
- the RB group can be aligned with the RBG, that is, the size of the RB group is the size of the RBG and the position is the same as the RBG; or the size of the RB group can be configured For example, it may be the number N of RBs configured by the base station through RRC, or the number N of RBs may be agreed upon by the protocol; the value of N may be 2, 4, 8 or 16. It should be understood that the above examples are provided to facilitate understanding of the present disclosure and shall not constitute any limitation to the present disclosure.
- a subband refers to a frequency domain resource that includes multiple continuous RBs/RB groups in the frequency domain.
- the subband in the embodiment of the present disclosure may be an uplink subband.
- the frequency domain resources can be divided into uplink subband 1, uplink subband 2 and uplink subband 3.
- the terminal device determines that uplink subband 2 is the frequency domain resource corresponding to the protection interval.
- the method for determining the guard interval determines the frequency domain resources corresponding to the guard interval according to the RB, RB group or subband, and can flexibly determine the guard interval, thereby reducing the guard interval overhead and improving resource utilization.
- the first information includes any one of the following:
- the first information is RB starting position information and RB length information
- a group of continuous RBs can be determined as the frequency domain range corresponding to the guard interval.
- the RB starting position information is used to indicate the starting RB
- the RB length information can be used to indicate the length of the RBs constituting the guard interval.
- the length of the RB can be represented by the number of RBs; the starting RB number can be used as the RB starting position information, and the starting RB number can be the RB number within the subband range, BWP, or carrier range.
- the RB group starting position information is used to indicate the starting RB group
- the RB group length information can be used to indicate the length of the RB group that constitutes the protection interval, and the length of the RB group can be expressed by the number of RB groups; since the RB group is composed of RBs, the starting RB number can also be used as the RB group starting position information, and the starting RB number can be the RB number within the subband range, BWP, or carrier range.
- a group of continuous RB groups is a frequency domain range corresponding to the guard interval.
- the second information is bitmap information used to identify the frequency domain position, it means using one bit to mark a first frequency domain unit.
- the first frequency domain unit can be RB, RB group, etc.
- the number of occupied bits can be determined according to the frequency domain width of the first frequency domain unit, such as the sub-band frequency domain width, BWP width or carrier frequency domain width.
- a group of continuous or discrete RBs/RB groups can be determined as the frequency domain range corresponding to the guard interval.
- the first information is the sub-band frequency domain position information
- the frequency domain resources indicated by the sub-band frequency domain position information are used as the frequency domain resources corresponding to the guard interval, that is, the frequency domain range of the guard interval is aligned with the sub-band frequency domain.
- the method for determining the guard interval provided in the embodiment of the present disclosure provides a variety of frequency domain resource indication methods, which can flexibly determine the frequency domain resources corresponding to the guard interval, thereby reducing the guard interval overhead and improving resource utilization.
- the time domain resources include time domain length and/or time domain position.
- the time domain length may refer to the length in the time domain, which may be expressed by the number of time units.
- the time domain position may refer to the starting position and/or ending position in the time domain, or the type of time domain resources, such as downlink time domain resources (such as downlink symbols), uplink time domain resources (such as uplink subbands, etc.).
- the first information is also used to determine a time domain length corresponding to a guard interval and/or to determine a time domain position corresponding to the guard interval.
- the first information can directly indicate the time domain length and/or time domain position corresponding to the protection interval, that is, the time domain length indicated by the first information is the time domain length corresponding to the protection interval, and the time domain position indicated by the first information is the time domain position corresponding to the protection interval.
- the first information may also indicate the time domain length corresponding to the guard interval through the time domain length corresponding to the first frequency domain unit and/or the time domain position corresponding to the guard interval through the time domain length corresponding to the first frequency domain unit.
- the time domain length corresponding to the guard interval can be determined based on the time domain length corresponding to the first frequency domain unit, such as determining the total time domain length corresponding to all first frequency domain units as the time domain length corresponding to the guard interval; the time domain position corresponding to the guard interval can be determined based on the time domain position corresponding to the first frequency domain unit, and determining each first After the time domain position corresponding to the frequency domain unit is determined, the time domain position corresponding to the guard interval can be determined.
- the time domain length corresponding to the guard interval may refer to the length in the time domain corresponding to the guard interval, which may be represented by the number of time units occupied by the guard interval, and the time domain position may refer to the starting position and/or the ending position corresponding to the guard interval, or may refer to the type of time domain resource where the guard interval is located, such as downlink time domain resources (such as downlink symbols), uplink time domain resources (such as uplink subbands, etc.).
- the time domain resource corresponding to the guard interval may be determined through the first information.
- the time domain resources include the time domain length and/or the time domain position, and the time domain resources corresponding to the guard interval can be flexibly determined by indicating the time domain length and/or the time domain position, thereby flexibly determining the guard interval.
- the method comprises:
- the determining the guard interval based on the first information includes: determining a time domain length corresponding to the guard interval based on the first rule and the subcarrier spacing, the subcarrier spacing being determined based on the subcarrier spacing information; or
- determining the guard interval based on the first information includes: determining the time domain length corresponding to the guard interval based on the time domain length information.
- the subcarrier spacing information is used to indicate the subcarrier spacing
- the first rule is used to determine the time domain length corresponding to the guard interval according to the subcarrier spacing
- the subcarrier spacing is determined according to the subcarrier spacing information.
- the first rule may be predefined by the protocol, or the first rule may be sent by the network device.
- the method for determining the time domain length of the guard interval according to the first rule and the subcarrier spacing can be applied to the time domain length of the guard interval determined based on the subband width.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- the time domain length information may directly indicate the time domain length corresponding to the time interval, or may indicate the time domain length corresponding to each first frequency domain unit.
- the time domain length information can be used for the frequency domain unit to indicate the number of time units, such as the number of symbols K. Determining the time domain length corresponding to the guard interval based on the time domain length information means taking the number of time units indicated by the time domain length information as the time domain length corresponding to the guard interval.
- the time domain length information indicates the time domain length corresponding to each first frequency domain unit
- the time domain length corresponding to each first frequency domain unit is indicated by the time domain length information, and after determining the time domain length corresponding to each first frequency domain unit, the time domain length corresponding to the guard interval can be determined. It should be understood that the time domain length corresponding to each first frequency domain unit can be the same or different.
- the first frequency domain unit may be a resource block RB, an RB group or a subband.
- the time domain length information is sent by a network device, and the time domain length information may be carried by RRC signaling.
- the terminal device obtains the time domain length information by receiving the RRC signaling sent by the network device.
- the method for determining the guard interval provided by the embodiment of the present disclosure can determine the time domain length corresponding to the guard interval, thereby determining the time domain resources corresponding to the guard interval, and can flexibly determine the guard interval.
- the method comprises:
- the determining the guard interval based on the first information includes: determining the time domain position of the preset guard interval as the time domain position of the guard interval; or
- the determining the guard interval based on the first information includes: determining the time domain position of the guard interval based on the time domain position information.
- the time domain location information is sent by a network device.
- the preset guard interval may be unique; the time domain position of the preset guard interval may be specified by the protocol, and the UE determines the time domain position of the guard interval through the protocol constraints.
- the last K time units of the predefined full downlink resources are the protection interval, or the first K time units of the UL subband are the protection interval, where K is the number of time units corresponding to the protection interval, and the value of K can be determined according to the time domain length corresponding to the protection interval.
- the method for determining the guard interval provided by the embodiment of the present disclosure directly uses the time domain position of the preset guard interval as the time domain position of the guard interval without the need for information interaction, thereby avoiding the delay caused by the information interaction.
- the time domain position information is used to indicate the time domain position of the protection interval, and the terminal device can directly determine the time domain position of the protection interval according to the time domain position information.
- the time domain location information may be carried by RRC signaling or DCI.
- the time domain position information may indicate the time domain position of each first resource unit (such as RB/RB group), and the terminal device determines the time domain position of the protection interval according to the time domain position of the first resource unit.
- RRC signaling can configure the guard interval to be located at position 1 or position 2 according to the RB granularity/RB group granularity.
- Position 1 and position 2 are the preset time domain positions of the guard interval. If the first frequency domain unit corresponding to the guard interval has RB1 and RB2, RRC can indicate that RB1 is located at position 1 and RB2 is located at position 2, thereby determining the time domain position corresponding to the guard interval.
- the method for determining the protection interval enables the terminal to flexibly configure the time domain position of the protection interval according to the instruction of the network device, thereby improving the flexibility of the system; and the network device can configure the time domain position of the protection interval according to the load conditions, thereby improving the resource utilization efficiency.
- the time domain position of the guard interval is any of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- FIG6 is one of the time domain position diagrams provided by the embodiment of the present disclosure.
- the shaded portion represents the uplink subband
- the time domain position of GP1 is the last M time units of the whole downlink resource
- the time domain position of GP2 is the last M time units of the whole downlink resource.
- the time domain position is P time units between the full downlink resources and the uplink subband (i.e., the time domain range where GP2 is located belongs neither to the time domain range of the full downlink symbol nor to the time domain range where the UL subband is located)
- the time domain position of GP3 is the first K time units of the uplink subband.
- M, K and P can be determined according to the time domain length of the guard interval.
- the time domain length of the guard interval is 5 time units
- the time domain position is the last M time units of all downlink resources
- the start time unit and/or the end time unit may be predefined or notified by the network device.
- the method for determining the protection interval provides a variety of time domain positions of protection intervals, and the terminal can flexibly configure the time domain position of the protection interval; and the time domain position of the protection interval is located between the full downlink resources, the uplink sub-band, and the full downlink resources and the uplink sub-band, and the time domain position of the protection interval can be configured according to the load situation, thereby improving resource utilization efficiency.
- the method further comprises:
- the scheduling information is used to indicate resources used for the first data transmission, and the resources may include frequency domain resources and/or time domain resources.
- the first data transmission includes uplink sending or downlink receiving.
- the first operation includes any one of the following:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- Abandoning the first data transmission means that the terminal device does not receive or send the first data transmission in which a resource conflict occurs, and abandons the corresponding transmission process.
- Delayed sending of the first data transmission means that for repeated transmission, if there is a resource conflict, the terminal device does not send the corresponding first data transmission at this time, does not calculate the number of valid transmissions, and continues to transmit on subsequent resources.
- Delayed reception of the first data transmission refers to that for repeated transmissions, if there is a resource conflict, the terminal device does not receive the corresponding first data transmission, does not calculate the number of valid transmissions, and continues to transmit on subsequent resources.
- Rate matching refers to aligning the number of encoded bits with the actual number of resources available for transmission. For the resources corresponding to the protection interval, rate matching (Rate Matching) is performed on the first data transmission. For details, reference may be made to relevant rate matching technologies, which will not be repeated here.
- the method for determining the guard interval enables the terminal device to perform the first operation when there is a resource conflict between the time-frequency domain resources of data transmission and the guard interval, thereby reducing the complexity of base station scheduling.
- FIG. 7 is a second flow chart of a method for determining a protection interval provided in an embodiment of the present disclosure. As shown in FIG. 7 , an embodiment of the present disclosure provides a method for determining a protection interval, which can be applied to a network device, including:
- Step 710 determining a protection interval
- Step 720 determining first information based on the protection interval
- Step 730 sending the first information to the terminal device
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the network device may be an access network device such as a base station.
- the network device can determine the protection interval through predefined rules (such as rules specified by the protocol), network load conditions, terminal requirements, etc. It should be understood that the above is an example for the convenience of understanding the present disclosure. The embodiments of the present disclosure do not limit how the network device determines the protection interval and the specific time and frequency domain resources of the protection interval.
- Determining the first information based on the guard interval refers to determining the first information based on the time-frequency domain resources of the guard interval.
- Determining the first information based on the guard interval refers to determining the first information based on the time-frequency domain resources of the guard interval.
- the network device can determine the frequency domain resources corresponding to the protection interval based on the first frequency domain unit, that is, the network device can determine the protection interval using the first frequency domain unit as the basic frequency domain unit. Taking the RB group as the first frequency domain unit as an example, the network device can use K RB groups as the frequency domain resources corresponding to the protection interval, and configure the corresponding frequency domain resources for the protection interval.
- the method for determining the protection interval provided in the embodiment of the present disclosure is that the network device can determine the frequency domain resources corresponding to the protection interval based on the first frequency domain unit and send the first information to the terminal device.
- the granularity of the first frequency domain resource is smaller than the granularity of the bandwidth part BWP, and the protection interval can be flexibly determined. For example, a shorter GP is configured. When TA-offset is equal to 0, the GP can be configured to 0.
- the method for determining the protection interval provided in the embodiment of the present disclosure can reduce the protection interval overhead and improve resource utilization.
- the first information is used to indicate the time domain resource corresponding to the protection interval based on the time domain resource corresponding to the first frequency domain unit.
- the first information may indicate the time domain resource corresponding to each first frequency domain unit, and the time domain resource corresponding to all first frequency domain units is the time domain resource corresponding to the protection interval.
- the time domain resource corresponding to each first frequency domain unit may be the same or different.
- the network device determining the protection interval may include:
- the time domain resources corresponding to the guard interval are determined based on the time domain resources corresponding to the first frequency domain unit.
- the network device may determine the time domain resources corresponding to the first frequency domain unit as the time domain resources corresponding to the guard interval.
- the method for determining the guard interval provided in the embodiment of the present disclosure can configure the time domain resources of the guard interval on each first frequency domain unit, and can configure different time domain resources of the guard interval for different first frequency domain units to match the different guard intervals required by different UEs. Compared with the configuration according to the maximum guard interval requirement within the entire sub-band range, it can reduce the resource overhead and spectrum utilization reduction caused by the guard interval.
- the first frequency domain resource includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the method for determining the guard interval determines the frequency domain resources corresponding to the guard interval according to the RB, RB group or subband, and can flexibly determine the guard interval.
- the first information includes any one of the following:
- RB starting position information and RB length information For the introduction of RB starting position information and RB length information, RB group starting position information and RB group length information, bitmap information for identifying frequency domain position and sub-band frequency domain position information, please refer to the above introduction and will not be repeated here.
- the method for determining the guard interval provided in the embodiment of the present disclosure provides a variety of frequency domain resource indication methods, which can flexibly determine the frequency domain resources corresponding to the guard interval, thereby reducing the guard interval overhead and improving resource utilization.
- the time domain resources include time domain length and/or time domain position.
- time domain length and time domain position For the introduction of time domain length and time domain position, please refer to the above introduction and will not be repeated here.
- the first information further includes:
- the first information is also used to determine a time domain length corresponding to a guard interval and/or to determine a time domain position corresponding to the guard interval.
- the first information can directly indicate the time domain length and/or time domain position corresponding to the protection interval, that is, the time domain length indicated by the first information is the time domain length corresponding to the protection interval, and the time domain position indicated by the first information is the time domain position corresponding to the protection interval.
- the first information may also indicate the time domain length corresponding to the guard interval through the time domain length corresponding to the first frequency domain unit and/or the time domain position corresponding to the guard interval through the time domain length corresponding to the first frequency domain unit.
- the time domain length corresponding to the guard interval can be determined based on the time domain length corresponding to the first frequency domain unit, such as determining the total time domain length corresponding to all first frequency domain units as the time domain length corresponding to the guard interval; the time domain position corresponding to the guard interval can be determined based on the time domain position corresponding to the first frequency domain unit. After determining the time domain position corresponding to each first frequency domain unit, the time domain position corresponding to the guard interval can be determined.
- the time domain length corresponding to the guard interval may refer to the length in the time domain corresponding to the guard interval, which may be represented by the number of time units occupied by the guard interval, and the time domain position may refer to the starting position and/or the ending position corresponding to the guard interval, or may refer to the type of time domain resource where the guard interval is located, such as downlink time domain resources (such as downlink symbols), uplink time domain resources (such as uplink subbands, etc.).
- the time domain resource corresponding to the guard interval may be determined through the first information.
- the method for determining the protection interval provided in the embodiment of the present disclosure can determine the time domain length corresponding to the protection interval through the first information and/or determine the time domain position corresponding to the protection interval through the first information, thereby determining the time domain resources corresponding to the protection interval, and can flexibly determine the protection interval.
- the first information includes time domain length information or subcarrier spacing information
- the time domain length information is used to determine the time domain length corresponding to the protection interval
- the subcarrier spacing information is used to determine the subcarrier spacing
- the subcarrier spacing is used by the terminal device to determine the time domain length corresponding to the protection interval according to the first rule.
- the network device may determine the time domain length information through the first rule and the subcarrier spacing, and the time domain length information may also be predefined. It should be understood that the above is an example for facilitating the understanding of the present disclosure and shall not constitute any limitation to the present disclosure.
- the determination of subcarrier spacing information may refer to related technologies, and the embodiments of the present disclosure do not limit the determination of subcarrier spacing information.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- the method for determining the guard interval enables the network device to send subcarrier spacing information to the terminal to indicate the time domain length of the terminal, and flexibly configure the time domain length of the guard interval, thereby improving system flexibility.
- determining the protection interval includes:
- the network device determines the time domain position of a preset guard interval as the time domain position of the guard interval.
- the time domain position of the preset guard interval may be unique; the time domain position of the preset guard interval may be specified by a protocol, and the network device determines the guard interval by the protocol constraint. The network device determines the time domain position of the preset guard interval as the time domain position of the guard interval.
- the method for determining the guard interval provided by the embodiment of the present disclosure directly uses the time domain position of the preset guard interval as the time domain position of the guard interval without the need for information interaction, thereby avoiding the delay caused by the information interaction.
- the determining the first information based on the protection interval includes:
- the sending the first information to the terminal device includes:
- the first frequency domain unit may be a resource block RB, an RB group or a subband.
- the first information includes time domain location information, and the time domain location information is determined by the network device based on a protection interval.
- the time domain position information may be determined by the network device according to the network load condition. For example, when the uplink resource load is heavy, the time domain position of the protection interval is determined as the downlink resource.
- the method for determining the protection interval enables the network device to flexibly configure the time domain position of the protection interval and send time domain position information indicating the time domain position of the protection interval to the terminal, thereby improving the flexibility of the system; and the network device can configure the time domain position of the protection interval according to the load conditions, thereby improving the resource utilization efficiency.
- the time domain position of the guard interval includes any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- FIG6 is one of the time domain position diagrams provided by the embodiment of the present disclosure.
- the shaded part represents the uplink subband
- the time domain position of GP1 is the last M time units of the full downlink resource
- the time domain position of GP2 is the P time units between the full downlink resource and the uplink subband (that is, the time domain range where GP2 is located does not belong to the time domain range of the full downlink symbol, nor to the time domain range where the UL subband is located)
- the time domain position of GP3 is the first K time units of the uplink subband.
- time domain position of the guard interval determined by the network device is the same as the time domain position of the guard interval indicated by the first information.
- the method for determining the protection interval provides a variety of time domain positions of protection intervals, and the network device can flexibly configure the time domain position of the protection interval; and the time domain position of the protection interval is located between the full downlink resources, the uplink sub-band, and the full downlink resources and the uplink sub-band.
- the network device can configure the time domain position of the protection interval according to the load situation, thereby improving resource utilization efficiency.
- the method further comprises:
- the scheduling information is used to indicate resources used for the first data transmission, and the resources may include frequency domain resources and/or time domain resources.
- the first data transmission includes uplink sending or downlink receiving.
- the method further includes: sending scheduling information indicating a first resource to the terminal device, where the first resource is used for first data transmission.
- the target scheduling information is used to indicate data transmission, which means that the target scheduling information is used to indicate the time-frequency domain resources used for data transmission.
- Data transmission includes uplink sending or downlink receiving, and the time-frequency domain resources include time domain resources and frequency domain resources.
- the network device Determine whether the time-frequency domain resources corresponding to data transmission and the time-frequency domain resources corresponding to the guard interval are There is a resource conflict. If there is a resource conflict, the network device performs a second operation, and the second operation is used to solve the resource conflict problem.
- the second operation includes:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- Abandoning the first data transmission means that the terminal device does not receive or send the first data transmission in which a resource conflict occurs, and abandons the corresponding transmission process.
- Delayed sending of the first data transmission means that for repeated transmission, if there is a resource conflict, the terminal device does not send the corresponding first data transmission at this time, does not calculate the number of valid transmissions, and continues to transmit on subsequent resources.
- Delayed reception of the first data transmission refers to that for repeated transmissions, if there is a resource conflict, the terminal device does not receive the corresponding first data transmission, does not calculate the number of valid transmissions, and continues to transmit on subsequent resources.
- Rate matching refers to aligning the number of encoded bits with the actual number of resources available for transmission. For the resources corresponding to the protection interval, rate matching (Rate Matching) is performed on the first data transmission. For details, reference may be made to relevant rate matching technologies, which will not be repeated here.
- the method for determining the protection interval provided by the embodiment of the present disclosure, when there is a resource conflict between the resource of the first data transmission and the protection interval, the network device performs the second operation, thereby solving the problem of being unable to transmit due to the resource conflict.
- the following describes a method for determining a protection interval provided by an embodiment of the present disclosure in combination with multiple embodiments.
- Embodiment 1 The frequency domain position and time domain length of the protection interval are configured with RB or RB group as the first frequency domain unit, and the time domain position of the protection interval is predefined or the time domain position of the protection interval is semi-statically configured.
- Terminal equipment (UE) behavior The UE determines the frequency domain resources and/or time domain length of the protection interval configured by the network device according to the RRC/DCI signaling, wherein the frequency domain resources/time domain length are based on the first frequency domain
- the first frequency domain unit is RB group/RB group, and the RRC signaling can be cell-level signaling or UE group-level signaling.
- the frequency domain resources may be continuous or discontinuous.
- the frequency domain resources may be configured by combining RB starting position information with RB length information or by combining RB group starting position information with RB group length information.
- the RB starting position information and the RB group starting position information may include a starting RB number, and the starting RB number may be an RB number within a subband range, a BWP, or a carrier range.
- the frequency domain resource can be configured by bitmap information, and the bitmap information is used to identify the frequency domain position.
- the number of bits indicated by the bitmap information can be determined according to the subband frequency domain width, BWP width or carrier frequency domain width.
- the number of bits indicated by the bitmap information can be determined according to the subband frequency domain width, BWP width or carrier frequency domain width, and the number of RBs contained in the RB group.
- the method for determining the guard interval provided in the embodiment of the present disclosure can configure a continuous or discrete guard interval on some RBs or RB groups of the uplink subband, as shown in FIGS. 8 and 9 .
- FIG8 is one of the application schematic diagrams provided by the embodiment of the present disclosure
- FIG9 is the second application schematic diagram provided by the embodiment of the present disclosure.
- UEs that are potentially introduced or affected by CLI interference are scheduled within a frequency domain resource range with a protection interval, such as Resource1 shown in FIG8, Resource1 shown in FIG9, or Resource3 shown in FIG9.
- a cell center UE or a UEPair consisting of a cell center UE and a cell edge UE is scheduled to a frequency domain range without a configured protection interval to reduce/eliminate the impact of cross interference, such as Resource2 shown in FIG8 or Resource2 shown in FIG9.
- the resource overhead and spectrum utilization reduction caused by the protection interval are reduced.
- the RB group can be aligned with the RBG, that is, the size of the RB group is the size of the RBG, and the position is the same as the RBG; or the size of the RB group is configurable or predefined, for example, it can be configured to 2, 4, 8 or 16 RBs.
- the time domain length of the guard interval may be based on the first rule and the sub
- the time domain length (the number of symbols K) is configured by RRC, for example, K is equal to 0, 1, 2 or 3.
- the time domain length may be configured according to the first frequency domain unit. For example, it may be configured according to an RB or an RB group. Specifically, different guard interval lengths are configured on different RBs or RB groups.
- FIG10 is a schematic diagram of the GP time domain length provided by an embodiment of the present disclosure. As shown in FIG10 , the time domain length of the GP corresponding to Resource1 is different from the time domain length of the GP corresponding to Resource2.
- the embodiment of the present disclosure can match different guard intervals required by different UEs, and is configured according to the maximum guard interval requirement relative to the entire sub-band range, thereby reducing the resource overhead and spectrum utilization caused by the guard interval.
- the UE may determine the time domain position of the guard interval according to the preset time domain position of the guard interval:
- the time domain position of the preset protection interval is the last M time units of the entire downlink resources or the first K time units of the UL subband, that is, the last K time units of the entire downlink resources are used as the protection interval or the first K time units of the UL subband are used as the protection interval, and M and K are the time domain lengths of the protection interval determined according to the above-mentioned time domain length determination method.
- the UE determines the time domain position of the guard interval according to the RRC signaling/DCI:
- RRC semi-static indication/DCI dynamic indication protection interval is located at position 1 or position 2, and position 1 and position 2 are predefined.
- Figure 11 is the second time domain position schematic diagram provided by the embodiment of the present disclosure. As shown in Figure 11, position 1 is the last M time units of the entire downlink resource.
- Figure 12 is the third time domain position schematic diagram provided by the embodiment of the present disclosure. As shown in Figure 12, position 2 is the first K time units of the uplink subband.
- RRC signaling can configure the time domain position of the protection interval to be located at position 1 or position 2 according to RB or RB group. Through this method, the network can flexibly configure the protection interval in the downlink resource or the uplink resource according to the load situation.
- the UE determines whether to perform the first operation according to whether there is resource conflict (overlapping) between the guard interval and the first data transmission indicated by the base station scheduling information.
- the first operation includes any one of the following:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- the first data transmission scheduled by the base station may be a single transmission, repetition, CG-PUSCH, SPS-PDSCH or multi-slot transmission, etc. scheduled by the base station through RRC/DCI.
- the method for determining the protection interval provided in the embodiment of the present disclosure explicitly defines the protection interval for scenarios such as single transmission, repetition, CG-PUSCH, SPS-PDSCH, etc. where one DCI/RRC schedules multiple transmissions.
- the UE can automatically discard, delay or perform rate matching around the protection interval, thereby further reducing the scheduling complexity of the base station.
- the base station determines the frequency domain resources and/or time domain length of the protection interval, as well as the time domain position of the protection interval; if the protection interval is determined in a predefined manner, the base station does not need to send relevant information to the terminal, and the terminal can also determine the protection interval in accordance with the protocol agreement. Otherwise, the base station will send the first information used to determine the frequency domain position and/or time domain length of the protection interval, as well as the time domain position of the protection interval to the UE.
- the frequency domain resources may be continuous or discontinuous.
- the frequency domain resources may be configured by combining RB starting position information with RB length information or by combining RB group starting position information with RB group length information.
- the RB starting position information and the RB group starting position information may include a starting RB number, and the starting RB number may be an RB number within a subband range, a BWP, or a carrier range.
- the frequency domain resource can be configured through bitmap information, and the bitmap information is used to identify the frequency domain location.
- the number of bits indicated by the bitmap information may be determined according to the subband frequency domain width, the BWP width, or the carrier frequency domain width.
- the number of bits indicated by the bitmap information may be determined according to the subband frequency domain width, the BWP width, or the carrier frequency domain width, and the number of RBs included in the RB group.
- the method for determining the guard interval can configure the guard interval on some RBs or RB groups of the uplink subband, schedule UEs that are potentially introduced or affected by CLI interference within the frequency domain resource range with the guard interval, and schedule the cell center UE or the UE pair consisting of the cell center UE and the cell edge UE to the frequency domain range without the guard interval configured to reduce or eliminate the impact of cross interference, and ultimately reduce the resource overhead and spectrum utilization caused by the guard interval in the absence of obvious CLI between UEs.
- the RB group may be aligned with the RBG, that is, the size of the RB group is the size of the RBG, and the position is the same as the RBG; or the size of the RB group may be configurable, for example, it may be configured to 2, 4, 8 or 16 RBs.
- the time domain length of the guard interval may be determined according to a first rule and a subcarrier spacing
- the first rule may be predefined
- the base station notifies the terminal of SCS (subcarrier spacing) information, and the terminal determines the time domain length information of the guard interval according to the predefined rule and SCS information.
- the time domain length (the number of symbols K) is configured to the UE through RRC, for example, K is equal to 0, 1, 2 or 3.
- the time domain length may be configured according to the first frequency domain unit. For example, it may be configured according to the RB or RB group.
- the time domain length may be configured according to the RB granularity/RB group granularity. This method may be used to configure different guard interval lengths on different RBs/RB-groups to match the different guard intervals required by different UEs. Compared with the configuration according to the maximum guard interval requirement within the entire sub-band range, the resource overhead and spectrum utilization reduction caused by the guard interval are reduced.
- the base station and the UE both use the preset time domain position of the guard interval to Determine the time domain position of the protection interval, for example, the time domain position of the preset protection interval is the last M time units of the entire downlink resource as the protection interval, or the time domain position of the preset protection interval is the first K time units of the UL subband as the protection interval, M and K are the time domain lengths of the protection interval.
- the embodiment of the present disclosure does not limit the method for determining M and K, which can be determined by the first rule and the subcarrier spacing, or by the time domain position of the preset protection interval.
- the base station uses RRC signaling/DCI to semi-statically indicate/dynamically indicate the time domain position of the determined protection interval, and the protection interval is located at position 1 or position 2, where position 1 and position 2 are predefined, for example, position 1 is the last K time units of all downlink resources, and position 2 is the first K time units of the UL subband.
- RRC signaling may configure the guard interval to be located at position 1 or position 2 according to RB granularity or RB group granularity.
- the network can flexibly configure the protection interval in the downlink resource or the uplink resource according to the load situation.
- the base station determines whether there is a resource conflict between the first resource used for the first data transmission and the resource corresponding to the protection interval, and performs a second operation if there is a resource conflict.
- the second operation includes any one of the following:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- the data transmission scheduled by the base station may be a single transmission, repetition, CG-PUSCH, SPS-PDSCH or multi-slot transmission, etc. scheduled by the base station through RRC/DCI.
- Embodiment 2 The frequency domain position and time domain length of the guard interval are configured with the subband as the first frequency domain unit; and/or the time domain position of the guard interval is predefined in the time domain or the time domain position of the guard interval is semi-statically configured.
- the UE determines the frequency domain position of the guard interval according to the subband frequency domain width, and the frequency domain position of the guard interval is the same as the frequency domain position of the UL subband.
- the subband frequency domain width can be determined by the subband frequency domain position information.
- the UE determines the time domain length K according to RRC signaling, for example, K is equal to 1, 2 or 3.
- the UE determines the time domain position of the guard interval according to RRC signaling/DCI, and the RRC semi-static indication/DCI dynamic indication guard interval is located at position 1 or position 2, and the position 1 and position 2 are predefined, for example, position 1 is the last M time units of the whole downlink resource, and position 2 is the first K time units of the UL subband, where M and K are the time domain lengths of the guard interval.
- the embodiment of the present disclosure does not limit the determination method of M and K, which can be determined by the first rule and the subcarrier spacing, or by the preset time domain position of the guard interval. Through this method, the network can flexibly configure the guard interval in the downlink resource or the uplink resource according to the load situation.
- the UE determines whether to perform the first operation according to whether there is resource conflict (overlapping) between the guard interval and the data transmission indicated by the target scheduling information of the base station.
- the first operation includes any one of the following:
- rate matching is performed on the data transmission indicated by the target scheduling information.
- the data transmission scheduled by the base station may be a single transmission, repetition, CG-PUSCH, SPS-PDSCH or multi-slot transmission, etc. scheduled by the base station through RRC/DCI.
- the method for determining the guard interval provided in the embodiment of the present disclosure explicitly defines the guard interval for scenarios such as single transmission, repetition, CG-PUSCH, SPS-PDSCH, etc. where one DCI/RRC schedules multiple transmissions.
- the UE can automatically drop, delay or perform rate matching around the guard interval, thereby further reducing the scheduling complexity of the base station.
- the base station determines the frequency domain resources and/or time domain length of the protection interval, as well as the time domain position of the protection interval; if the protection interval is determined in a predefined manner, the base station does not need to send relevant information to the terminal, and the terminal can also determine the protection interval in accordance with the protocol agreement. Otherwise, the base station will send the first information used to determine the frequency domain position and/or time domain length of the protection interval, as well as the time domain position of the protection interval to the UE.
- the frequency domain resources of the guard interval are the same as the frequency domain resources of the UL subband.
- the base station notifies the terminal of the subband frequency domain location information, which is used to indicate the frequency domain resources corresponding to the terminal UL subband.
- the terminal determines the frequency domain resources of the guard interval according to the subband frequency domain location information notified by the base station.
- the base station notifies the terminal of SCS (subcarrier spacing) information, and the terminal determines the time domain length of the guard interval according to the SCS information and the predefined first rule.
- both the base station and the UE determine the time domain position of the protection interval based on the time domain position of the preset protection interval.
- the time domain position of the preset protection interval is the last M time units of the entire downlink resources as the protection interval, or the time domain position of the preset protection interval is the first K time units of the UL subband as the protection interval.
- the base station semi-statically indicates/dynamically indicates the time domain position of the determined guard interval through RRC signaling/DCI that the guard interval is located at position 1 or position 2, where position 1 and position 2 are predefined, for example, position 1 is the last K time units of the full downlink resource, position 2 is the first K time units of the UL subband, M and K are the time domain lengths of the guard interval, and the present disclosure
- position 1 and position 2 are predefined, for example, position 1 is the last K time units of the full downlink resource, position 2 is the first K time units of the UL subband, M and K are the time domain lengths of the guard interval, and the present disclosure
- M and K are the time domain lengths of the guard interval
- RRC signaling may configure the guard interval to be located at position 1 or position 2 according to RB granularity or RB group granularity.
- the network can flexibly configure the protection interval in the downlink resource or the uplink resource according to the load situation.
- the base station determines whether there is a resource conflict between the first resource used for the first data transmission and the resource corresponding to the protection interval, and performs a second operation if there is a resource conflict.
- the second operation includes any one of the following:
- the first data transmission is rate matched for resources corresponding to the guard interval.
- the data transmission scheduled by the base station may be a single transmission, repetition, CG-PUSCH, SPS-PDSCH or multi-slot transmission, etc., scheduled by the base station through RRC/DCI.
- FIG. 13 is a schematic diagram of a structure of a device for determining a guard interval provided in an embodiment of the present disclosure.
- the embodiment of the present disclosure provides a device for determining a guard interval, which can be applied to a terminal device.
- the device includes: a first determining unit 1310;
- a first determining unit 1310 configured to determine a guard interval based on first information
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain unit includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the first determination unit is further used to determine the time domain length corresponding to the guard interval based on the first rule and the subcarrier spacing when the first information includes a first rule and subcarrier spacing information, and the subcarrier spacing is determined based on the subcarrier spacing information; or
- the first determination unit is further configured to determine the time domain length corresponding to the guard interval based on the time domain length information when the first information includes time domain length information.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- the first determining unit is further configured to, when the first information includes a time domain position of a preset guard interval, determine the time domain position of the preset guard interval as the time domain position of the guard interval; or
- the first determination unit is further configured to determine the time domain length corresponding to the guard interval based on the time domain length information when the first information includes time domain length information.
- the time domain position of the guard interval is any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the device further comprises:
- a first receiving unit configured to receive scheduling information sent by a network device and used to indicate a first resource, where the first resource is used for first data transmission;
- the first determining unit is further configured to determine, based on the protection interval and the scheduling information, whether there is a resource conflict between the first resource and the resource corresponding to the protection interval, and if there is a resource conflict The first operation is performed under the condition of .
- the device further comprises: a first operating unit;
- the first operation unit is used to perform any one of the following first operations:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- the methods and devices provided in the various embodiments of the present disclosure are based on the same application concept. Since the principles of solving problems by the method for determining the protection interval and the device for determining the protection interval are similar and can achieve the same technical effects, the implementation of the device and the method can refer to each other and the repeated parts will not be repeated.
- FIG. 14 is a second structural diagram of a device for determining a protection interval provided in an embodiment of the present disclosure.
- An embodiment of the present disclosure provides a device for determining a protection interval, which can be applied to a network device, and the device includes:
- a second determining unit 1410 is configured to determine a guard interval
- the second determining unit 1410 is further configured to determine first information based on the protection interval
- the second sending unit 1420 is configured to send the first information to a terminal device
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain resource includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the first information includes time domain length information or subcarrier spacing information
- the time domain length information is used to determine the time domain length corresponding to the protection interval
- the subcarrier spacing information is used to determine the subcarrier spacing
- the subcarrier spacing is used by the terminal device to determine the time domain length corresponding to the protection interval according to the first rule.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- the second determining unit is further used to determine the time domain position of a preset guard interval as the time domain position of the guard interval.
- the time domain position of the guard interval includes any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the second sending unit is further used to send scheduling information to the terminal device, and the scheduling information is used to indicate the first resource.
- the second determining unit is further used to determine whether there is a resource conflict between the first resource used for the first data transmission and the resource corresponding to the protection interval, and perform a second operation if there is a resource conflict.
- the device further comprises: a second operating unit;
- the second operation unit is used to perform any one of the following second operations:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- the methods and devices provided in various embodiments of the present disclosure are based on the same application concept. Since the method for determining a protection interval and the device for determining a protection interval solve the problem in a similar manner and can achieve the same The technical effects are as follows, so the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.
- each functional unit in each embodiment of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
- the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
- the technical solution of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product.
- the computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present disclosure.
- the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.
- FIG15 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present disclosure.
- the terminal device includes a memory 1520, a transceiver 1500, and a processor 1510; wherein the processor 1510 and the memory 1520 may also be arranged physically separately.
- the memory 1520 is used to store a computer program; the transceiver 1500 is used to send and receive data under the control of the processor 1510; the processor 1510 calls the computer program stored in the memory 1520 to perform operations corresponding to any of the methods for determining a guard interval applied to a terminal device provided in the embodiments of the present disclosure according to the obtained executable instructions, for example:
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the transceiver 1500 is used to receive and send data under the control of the processor 1510 .
- the bus interface 1540 may include any number of interconnected buses and bridges. Specifically, various circuits of one or more processors represented by processor 1510 and memory represented by memory 1520 are connected together. Bus interface 1540 can also connect various other circuits such as peripheral devices, voltage regulators and power management circuits, which are well known in the art and are therefore not further described herein. Bus interface provides an interface.
- Transceiver 1500 can be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, and these transmission media include transmission media such as wireless channels, wired channels, and optical cables.
- user interface 1530 can also be included, and user interface 1530 can also be an interface capable of externally connecting or internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
- the processor 1510 is responsible for managing the bus architecture and general processing, and the memory 1520 can store data used by the processor 1510 when performing operations.
- processor 1510 can be a CPU (central processing unit), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array) or CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.
- CPU central processing unit
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- CPLD Complex Programmable Logic Device
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain unit includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the operation includes:
- the determining the guard interval based on the first information includes: determining a time domain length corresponding to the guard interval based on the first rule and the subcarrier spacing, the subcarrier spacing being determined based on the subcarrier spacing information; or
- determining the guard interval based on the first information includes: determining the time domain length corresponding to the guard interval based on the time domain length information.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- the operation includes:
- the determining the guard interval based on the first information includes: determining the time domain position of the preset guard interval as the time domain position of the guard interval; or
- determining the guard interval based on the first information includes: determining the time domain position indicated by the time domain position information as the time domain position of the guard interval.
- the time domain position of the guard interval is any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the operation further includes:
- the first operation includes any one of the following:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- FIG. 16 is a schematic diagram of the structure of a network device provided in an embodiment of the present disclosure.
- the network device includes a memory 1620, a transceiver 1600, and a processor 1610, wherein:
- the memory 1620 is used to store computer programs; the transceiver 1600 is used to send and receive data under the control of the processor 1610; the processor 1610 is used to read the computer program in the memory 1620 and perform the following operations:
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the transceiver 1600 is used to receive and send data under the control of the processor 1610 .
- the bus architecture can include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1610 and various circuits of memory represented by memory 1620 are linked together.
- the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits together, which are all well known in the art, so they are not further described herein.
- Bus interface 1630 provides an interface.
- Transceiver 1600 can be a plurality of components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, and these transmission media include transmission media such as wireless channels, wired channels, and optical cables.
- Processor 1610 is responsible for managing the bus architecture and general processing, and memory 1620 can store data used by processor 1610 when performing operations.
- the processor 1610 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPD). Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
- CPU central processing unit
- ASIC application specific integrated circuit
- FPGA field programmable gate array
- CPD complex programmable logic device
- CPLD Programmable Logic Device
- the processor can also adopt a multi-core architecture.
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain resource includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the first information includes time domain length information or subcarrier spacing information
- the time domain length information is used to determine the time domain length corresponding to the protection interval
- the subcarrier spacing information is used to determine the subcarrier spacing
- the subcarrier spacing is used by the terminal device to determine the time domain length corresponding to the protection interval according to the first rule.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- determining the protection interval includes:
- the time domain position of the preset guard interval is determined as the time domain position of the guard interval.
- the time domain position of the guard interval includes any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the operation further includes:
- the second operation includes:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- the above-mentioned network device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned protection interval determination method embodiment, and can achieve the same technical effect.
- the parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.
- an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, wherein the computer program is used to enable the processor to execute the method for determining a guard interval applied to a terminal device provided in the above embodiments, including:
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain unit includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the method comprises:
- the determining the guard interval based on the first information includes: determining a time domain length corresponding to the guard interval based on the first rule and the subcarrier spacing, the subcarrier spacing being determined based on the subcarrier spacing information; or
- determining the guard interval based on the first information includes: determining the time domain length corresponding to the guard interval based on the time domain length information.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- the method comprises:
- the determining the guard interval based on the first information includes: determining the time domain position of the preset guard interval as the time domain position of the guard interval; or
- determining the guard interval based on the first information includes: determining the time domain position indicated by the time domain position information as the time domain position of the guard interval.
- the time domain position of the guard interval is any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the method further comprises:
- the first operation includes any one of the following:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, wherein the computer program is used to enable the processor to execute the method for determining a protection interval applied to a network device provided in the above embodiments, including:
- the first information is used to indicate the frequency domain resources corresponding to the guard interval based on the first frequency domain unit and/or to indicate the time domain resources corresponding to the guard interval; the frequency domain width of the first frequency domain unit is smaller than the bandwidth part BWP.
- the first information is used to indicate the time domain resources corresponding to the guard interval based on the time domain resources corresponding to the first frequency domain unit.
- the first frequency domain resource includes any one of the following:
- An RB group wherein the RB group is composed of a plurality of RBs
- the first information includes any one of the following:
- the time domain resources include time domain length and/or time domain position.
- the first information includes time domain length information or subcarrier spacing information
- the time domain length information is used to determine the time domain length corresponding to the protection interval
- the subcarrier spacing information is used to determine the subcarrier spacing
- the subcarrier spacing is used by the terminal device to determine the time domain length corresponding to the protection interval according to the first rule.
- the first rule is a mapping relationship between time domain length and subcarrier spacing.
- determining the protection interval includes:
- the time domain position of the preset guard interval is determined as the time domain position of the guard interval.
- the time domain position of the guard interval includes any one of the following:
- the first K time units of the uplink subband or,
- M, K and P are the time domain lengths of the protection interval, and M, K and P are integers greater than 0.
- the method further comprises:
- the second operation includes:
- the first data transmission is rate matched for resources corresponding to the protection interval.
- the processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.
- magnetic storage such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.
- optical storage such as CD, DVD, BD, HVD, etc.
- semiconductor storage such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)
- the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.
- a computer-usable storage media including but not limited to disk storage and optical storage, etc.
- processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
- processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more flows in the flowchart and/or one or more blocks in the block diagram.
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Abstract
Description
Claims (67)
- 一种保护间隔的确定方法,应用于终端设备,包括:基于第一信息确定保护间隔;其中,所述第一信息用于基于第一频域单元指示所述保护间隔对应的频域资源和/或用于指示所述保护间隔对应的时域资源;所述第一频域单元的频域宽度小于带宽部分BWP。
- 根据权利要求1所述的保护间隔的确定方法,其中,所述第一信息用于基于第一频域单元对应的时域资源指示所述保护间隔对应的时域资源。
- 根据权利要求1或2所述的保护间隔的确定方法,其中,所述第一频域单元包括以下任一:资源块RB;RB组,所述RB组由多个RB构成;子带。
- 根据权利要求3所述的保护间隔的确定方法,其中,所述第一信息包括以下任一:RB起始位置信息和RB长度信息;RB组起始位置信息和RB组长度信息;用于标识频域位置的位图bitmap信息;子带频域位置信息。
- 根据权利要求1或2所述的保护间隔的确定方法,其中,所述时域资源包括时域长度和/或时域位置。
- 根据权利要求5所述的保护间隔的确定方法,其中,所述方法包括:在所述第一信息包括第一规则和子载波间隔信息的情况下,所述基于第一信息确定保护间隔包括:基于第一规则和子载波间隔确定所述保护间隔对应的时域长度,所述子载波间隔是基于所述子载波间隔信息确定的;或在所述第一信息包括时域长度信息的情况下,所述基于第一信息确定保护间隔包括:基于所述时域长度信息确定所述保护间隔对应的时域长度。
- 根据权利要求6所述的保护间隔的确定方法,其中,所述第一规则为 时域长度与子载波间隔的映射关系。
- 根据权利要求5所述的保护间隔的确定方法,其中,所述方法包括:在所述第一信息包括预设的保护间隔的时域位置的情况下,所述基于第一信息确定保护间隔包括:将预设的保护间隔的时域位置确定为所述保护间隔的时域位置;或在所述第一信息包括时域位置信息的情况下,所述基于第一信息确定保护间隔包括:将所述时域位置信息指示的时域位置确定为所述保护间隔的时域位置。
- 根据权利要求8所述的保护间隔的确定方法,其中,所述保护间隔的时域位置为以下任一:全下行资源的后M个时间单元;或者,上行子带的前K个时间单元;或者,全下行资源和上行子带之间的P个时间单元;其中,M、K和P为保护间隔的时域长度,M、K和P为大于0的整数。
- 根据权利要求1或2所述的保护间隔的确定方法,其中,所述方法还包括:接收网络设备发送的用于指示第一资源的调度信息,所述第一资源用于第一数据传输;基于所述保护间隔和所述调度信息,确定所述第一资源与所述保护间隔对应的资源是否存在资源冲突,在存在资源冲突的情况下执行第一操作。
- 根据权利要求10所述的保护间隔的确定方法,其中,所述第一操作包括下述任意一项:丢弃所述第一数据传输;延迟发送第一数据传输;延迟接收第一数据传输;针对所述保护间隔对应的资源,对所述第一数据传输进行速率匹配。
- 一种保护间隔的确定方法,应用于网络设备,包括:确定保护间隔;基于所述保护间隔确定第一信息;向终端设备发送所述第一信息;其中,所述第一信息用于基于第一频域单元指示所述保护间隔对应的频域资源和/或用于指示所述保护间隔对应的时域资源;所述第一频域单元的频域宽度小于带宽部分BWP。
- 根据权利要求12所述的保护间隔的确定方法,其中,所述第一信息用于基于第一频域单元对应的时域资源指示所述保护间隔对应的时域资源。
- 根据权利要求12或13所述的保护间隔的确定方法,其中,所述第一频域资源包括以下任一:资源块RB;RB组,所述RB组由多个RB构成;子带。
- 根据权利要求14所述的保护间隔的确定方法,其中,所述第一信息包括以下任一:RB起始位置信息和RB长度信息;RB组起始位置信息和RB组长度信息;用于标识频域位置的位图bitmap信息;子带频域位置信息。
- 根据权利要求12或13所述的保护间隔的确定方法,其中,所述时域资源包括时域长度和/或时域位置。
- 根据权利要求16所述的保护间隔的确定方法,其中,所述第一信息包括时域长度信息或子载波间隔信息;其中,所述时域长度信息用于确定所述保护间隔对应的时域长度,所述子载波间隔信息用于确定子载波间隔,所述子载波间隔用于所述终端设备根据第一规则确定所述保护间隔对应的时域长度。
- 根据权利要求17所述的保护间隔的确定方法,其中,所述第一规则为时域长度与子载波间隔的映射关系。
- 根据权利要求12所述的保护间隔的确定方法,其中,所述确定保护 间隔包括:将预设的保护间隔的时域位置确定为所述保护间隔的时域位置。
- 根据权利要求16所述的保护间隔的确定方法,其中,所述保护间隔的时域位置包括以下任一:全下行资源的后M个时间单元;或者,上行子带的前K个时间单元;或者,全下行资源和上行子带之间的P个时间单元;其中,M、K和P为保护间隔的时域长度,M、K和P为大于0的整数。
- 根据权利要求12或13所述的保护间隔的确定方法,其中,所述方法还包括:确定用于第一数据传输的第一资源与所述保护间隔对应的资源是否存在资源冲突,在存在资源冲突的情况下执行第二操作。
- 根据权利要求21所述的保护间隔的确定方法,其中,所述第二操作包括:丢弃所述第一数据传输;延迟发送所述第一数据传输;延迟接收所述第一数据传输;针对所述保护间隔对应的资源,对所述第一数据传输进行速率匹配。
- 一种终端设备,包括存储器,收发机,处理器:存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:基于第一信息确定保护间隔;其中,所述第一信息用于基于第一频域单元指示所述保护间隔对应的频域资源和/或用于指示所述保护间隔对应的时域资源;所述第一频域单元的频域宽度小于带宽部分BWP。
- 根据权利要求23所述的终端设备,其中,所述第一信息用于基于第一频域单元对应的时域资源指示所述保护间隔对应的时域资源。
- 根据权利要求23或24所述的终端设备,其中,所述第一频域单元 包括以下任一:资源块RB;RB组,所述RB组由多个RB构成;子带。
- 根据权利要求25所述的终端设备,其中,所述第一信息包括以下任一:RB起始位置信息和RB长度信息;RB组起始位置信息和RB组长度信息;用于标识频域位置的位图bitmap信息;子带频域位置信息。
- 根据权利要求23或24所述的终端设备,其中,所述时域资源包括时域长度和/或时域位置。
- 根据权利要求27所述的终端设备,其中,所述操作包括:在所述第一信息包括第一规则和子载波间隔信息的情况下,所述基于第一信息确定保护间隔包括:基于第一规则和子载波间隔确定所述保护间隔对应的时域长度,所述子载波间隔是基于所述子载波间隔信息确定的;或在所述第一信息包括时域长度信息的情况下,所述基于第一信息确定保护间隔包括:基于所述时域长度信息确定所述保护间隔对应的时域长度。
- 根据权利要求28所述的终端设备,其中,所述第一规则为时域长度与子载波间隔的映射关系。
- 根据权利要求27所述的终端设备,其中,所述操作包括:在所述第一信息包括预设的保护间隔的时域位置的情况下,所述基于第一信息确定保护间隔包括:将预设的保护间隔的时域位置确定为所述保护间隔的时域位置;或在所述第一信息包括时域位置信息的情况下,所述基于第一信息确定保护间隔包括:将所述时域位置信息指示的时域位置确定为所述保护间隔的时域位置。
- 根据权利要求30所述的终端设备,其中,所述保护间隔的时域位置 为以下任一:全下行资源的后M个时间单元;或者,上行子带的前K个时间单元;或者,全下行资源和上行子带之间的P个时间单元;其中,M、K和P为保护间隔的时域长度,M、K和P为大于0的整数。
- 根据权利要求23或24所述的终端设备,其中,所述操作还包括:接收网络设备发送的用于指示第一资源的调度信息,所述第一资源用于第一数据传输;基于所述保护间隔和所述调度信息,确定所述第一资源与所述保护间隔对应的资源是否存在资源冲突,在存在资源冲突的情况下执行第一操作。
- 根据权利要求32所述的终端设备,其中,所述第一操作包括下述任意一项:丢弃所述第一数据传输;延迟发送第一数据传输;延迟接收第一数据传输;针对所述保护间隔对应的资源,对所述第一数据传输进行速率匹配。
- 一种网络设备,包括存储器,收发机,处理器:存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:确定保护间隔;基于所述保护间隔确定第一信息;向终端设备发送所述第一信息;其中,所述第一信息用于基于第一频域单元指示所述保护间隔对应的频域资源和/或用于指示所述保护间隔对应的时域资源;所述第一频域单元的频域宽度小于带宽部分BWP。
- 根据权利要求34所述的网络设备,其中,所述第一信息用于基于第一频域单元对应的时域资源指示所述保护间隔对应的时域资源。
- 根据权利要求34或35所述的网络设备,其中,所述第一频域资源 包括以下任一:资源块RB;RB组,所述RB组由多个RB构成;子带。
- 根据权利要求36所述的网络设备,其中,所述第一信息包括以下任一:RB起始位置信息和RB长度信息;RB组起始位置信息和RB组长度信息;用于标识频域位置的位图bitmap信息;子带频域位置信息。
- 根据权利要求34或35所述的网络设备,其中,所述时域资源包括时域长度和/或时域位置。
- 根据权利要求38所述的网络设备,其中,所述第一信息包括时域长度信息或子载波间隔信息;其中,所述时域长度信息用于确定所述保护间隔对应的时域长度,所述子载波间隔信息用于确定子载波间隔,所述子载波间隔用于所述终端设备根据第一规则确定所述保护间隔对应的时域长度。
- 根据权利要求39所述的网络设备,其中,所述第一规则为时域长度与子载波间隔的映射关系。
- 根据权利要求34所述的网络设备,其中,所述确定保护间隔包括:将预设的保护间隔的时域位置确定为所述保护间隔的时域位置。
- 根据权利要求38所述的网络设备,其中,所述保护间隔的时域位置包括以下任一:全下行资源的后M个时间单元;或者,上行子带的前K个时间单元;或者,全下行资源和上行子带之间的P个时间单元;其中,M、K和P为保护间隔的时域长度,M、K和P为大于0的整数。
- 根据权利要求34或35所述的网络设备,其中,所述操作还包括:确定用于第一数据传输的第一资源与所述保护间隔对应的资源是否存在资源冲突,在存在资源冲突的情况下执行第二操作。
- 根据权利要求43所述的网络设备,其中,所述第二操作包括:丢弃所述第一数据传输;延迟发送所述第一数据传输;延迟接收所述第一数据传输;针对所述保护间隔对应的资源,对所述第一数据传输进行速率匹配。
- 一种保护间隔的确定装置,应用于终端设备,包括:第一确定单元,用于基于第一信息确定保护间隔;其中,所述第一信息用于基于第一频域单元指示所述保护间隔对应的频域资源和/或用于指示所述保护间隔对应的时域资源;所述第一频域单元的频域宽度小于带宽部分BWP。
- 根据权利要求45所述的保护间隔的确定装置,其中,所述第一信息用于基于第一频域单元对应的时域资源指示所述保护间隔对应的时域资源。
- 根据权利要求45或46所述的保护间隔的确定装置,其中,所述第一频域单元包括以下任一:资源块RB;RB组,所述RB组由多个RB构成;子带。
- 根据权利要求47所述的保护间隔的确定装置,其中,所述第一信息包括以下任一:RB起始位置信息和RB长度信息;RB组起始位置信息和RB组长度信息;用于标识频域位置的位图bitmap信息;子带频域位置信息。
- 根据权利要求45或46所述的保护间隔的确定装置,其中,所述时域资源包括时域长度和/或时域位置。
- 根据权利要求49所述的保护间隔的确定装置,其中,所述第一确定 单元,还用于在所述第一信息包括第一规则和子载波间隔信息的情况下,基于第一规则和子载波间隔确定所述保护间隔对应的时域长度,所述子载波间隔是基于所述子载波间隔信息确定的;或所述第一确定单元,还用于在所述第一信息包括时域长度信息的情况下,基于所述时域长度信息确定所述保护间隔对应的时域长度。
- 根据权利要求50所述的保护间隔的确定装置,其中,所述第一规则为时域长度与子载波间隔的映射关系。
- 根据权利要求49所述的保护间隔的确定装置,其中,所述第一确定单元,还用于在所述第一信息包括预设的保护间隔的时域位置的情况下,将预设的保护间隔的时域位置确定为所述保护间隔的时域位置;或所述第一确定单元,还用于在所述第一信息包括时域长度信息的情况下,基于所述时域长度信息确定所述保护间隔对应的时域长度。
- 根据权利要求52所述的保护间隔的确定装置,其中,所述保护间隔的时域位置为以下任一:全下行资源的后M个时间单元;或者,上行子带的前K个时间单元;或者,全下行资源和上行子带之间的P个时间单元;其中,M、K和P为保护间隔的时域长度,M、K和P为大于0的整数。
- 根据权利要求45或46所述的保护间隔的确定装置,其中,所述装置还包括:第一接收单元,用于接收网络设备发送的用于指示第一资源的调度信息,所述第一资源用于第一数据传输;所述第一确定单元,还用于基于所述保护间隔和所述调度信息,确定所述第一资源与所述保护间隔对应的资源是否存在资源冲突,在存在资源冲突的情况下执行第一操作。
- 根据权利要求54所述的保护间隔的确定装置,其中,所述装置还包括:第一操作单元;所述第一操作单元用于执行包括下述任意一项第一操作:丢弃所述第一数据传输;延迟发送第一数据传输;延迟接收第一数据传输;针对所述保护间隔对应的资源,对所述第一数据传输进行速率匹配。
- 一种保护间隔的确定装置,应用于网络设备,包括:第二确定单元,用于确定保护间隔;所述第二确定单元,还用于基于所述保护间隔确定第一信息;第二发送单元,用于向终端设备发送所述第一信息;其中,所述第一信息用于基于第一频域单元指示所述保护间隔对应的频域资源和/或用于指示所述保护间隔对应的时域资源;所述第一频域单元的频域宽度小于带宽部分BWP。
- 根据权利要求56所述的保护间隔的确定装置,其中,所述第一信息用于基于第一频域单元对应的时域资源指示所述保护间隔对应的时域资源。
- 根据权利要求56或57所述的保护间隔的确定装置,其中,所述第一频域资源包括以下任一:资源块RB;RB组,所述RB组由多个RB构成;子带。
- 根据权利要求58所述的保护间隔的确定装置,其中,所述第一信息包括以下任一:RB起始位置信息和RB长度信息;RB组起始位置信息和RB组长度信息;用于标识频域位置的位图bitmap信息;子带频域位置信息。
- 根据权利要求56或57所述的保护间隔的确定装置,其中,所述时域资源包括时域长度和/或时域位置。
- 根据权利要求60所述的保护间隔的确定装置,其中,所述第一信息包括时域长度信息或子载波间隔信息;其中,所述时域长度信息用于确定所述保护间隔对应的时域长度,所述子载波间隔信息用于确定子载波间隔,所述子载波间隔用于所述终端设备根据第一规则确定所述保护间隔对应的时域长度。
- 根据权利要求61所述的保护间隔的确定装置,其中,所述第一规则为时域长度与子载波间隔的映射关系。
- 根据权利要求56所述的保护间隔的确定装置,其中,所述第二确定单元,还用于将预设的保护间隔的时域位置确定为所述保护间隔的时域位置。
- 根据权利要求60所述的保护间隔的确定装置,其中,所述保护间隔的时域位置包括以下任一:全下行资源的后M个时间单元;或者,上行子带的前K个时间单元;或者,全下行资源和上行子带之间的P个时间单元;其中,M、K和P为保护间隔的时域长度,M、K和P为大于0的整数。
- 根据权利要求56或57所述的保护间隔的确定装置,其中,所述第二发送单元,还用于向所述终端设备发送的调度信息,所述调度信息用于指示第一资源。所述第二确定单元,还用于确定用于第一数据传输的第一资源与所述保护间隔对应的资源是否存在资源冲突,在存在资源冲突的情况下执行第二操作。
- 根据权利要求65所述的保护间隔的确定装置,其中,所述装置还包括:第二操作单元;所述第二操作单元用于执行包括下述任意一项所述第二操作:丢弃所述第一数据传输;延迟发送所述第一数据传输;延迟接收所述第一数据传输;针对所述保护间隔对应的资源,对所述第一数据传输进行速率匹配。
- 一种处理器可读存储介质,所述处理器可读存储介质存储有计算机程序,所述计算机程序用于使所述处理器执行权利要求1至11任一项所述的 保护间隔的确定方法或权利要求12至22任一项所述的保护间隔的确定方法。
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CN114650548A (zh) * | 2020-12-18 | 2022-06-21 | 维沃移动通信有限公司 | 资源配置方法、装置、网络节点和存储介质 |
CN114650600A (zh) * | 2020-12-18 | 2022-06-21 | 维沃移动通信有限公司 | 资源配置方法、装置、网络节点和存储介质 |
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