WO2019214730A1 - 通信方法和通信装置 - Google Patents
通信方法和通信装置 Download PDFInfo
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- WO2019214730A1 WO2019214730A1 PCT/CN2019/086459 CN2019086459W WO2019214730A1 WO 2019214730 A1 WO2019214730 A1 WO 2019214730A1 CN 2019086459 W CN2019086459 W CN 2019086459W WO 2019214730 A1 WO2019214730 A1 WO 2019214730A1
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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
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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
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
Definitions
- the present application relates to the field of communications and, more particularly, to a method and apparatus for determining the timing at which the timing advance TA is effective.
- the time for the uplink signals from different user equipments (UEs) to reach the network equipment is basically aligned. Therefore, the network device sends a time advance (TA) to the terminal device, and the terminal device adjusts the time for sending the uplink signal according to the received TA, so as to implement uplink timing synchronization between the terminal device and the network device.
- TA time advance
- the terminal device first receives the TA adjustment command sent by the network device, and after a period of time, the terminal device applies the new TA until a new TA adjustment command is received.
- the terminal device can control the time interval to control the time when the TA takes effect.
- the uplink-carrier spacing (SCS) of the uplink (UL) is different, which causes different time intervals, resulting in the same time advance group (TAG), different UL.
- the TA effective time is inconsistent; in addition, different TA effective time increases the implementation complexity of the terminal device.
- the present application provides a method and apparatus for determining a timing at which a timing advance TA is effective, which can ensure uplink timing synchronization between a terminal device and a network device.
- a communication method including: determining a first subcarrier spacing from the M subcarrier spacings, wherein the M subcarrier spacings are subcarrier spacings corresponding to L carriers used by the terminal device, where , L ⁇ M ⁇ 2; determining an effective timing of the timing advance amount TA of each of the L carriers according to the first subcarrier interval.
- the network device sends the configuration information to the terminal device to indicate the uplink subcarrier interval, and sends a TA adjustment command to the terminal device; the terminal device receives the TA adjustment command sent by the network device, where the TA adjustment command includes the TA adjustment amount, and the terminal device A new timing advance amount is determined based on the current timing advance amount TA and the TA adjustment amount.
- the base station determines the timing advance amount of each UE by measuring the uplink signal transmitted by the UE, and notifies the UE of the timing advance amount.
- the first time interval N may be defined as K slots, and the total duration of the first time interval N includes four parts of duration as shown in the figure, namely N 1 , N 2 , L 2 and TA max .
- the mobile communication system supports multiple subcarrier spacings (for example, different service types or operating frequencies are applied per seed carrier interval), and the symbols of different subcarrier spacings have different lengths of corresponding cyclic prefixes CP.
- the anti-delay impact performance of different sub-carrier spacings is also different. Therefore, the UE uses different timing advances in different scenarios, thereby satisfying the diversified requirements of the 5G mobile communication system for uplink synchronization.
- different subcarrier spacings in the carrier resources are 15 kHz, 30 kHz, 60 kHz, and 120 kHz, which may be more likely in the future. It should be understood that the present application includes but is not limited thereto.
- N 1 , N 2 , and TA max are different, resulting in inconsistent TA effective times of different ULs in the same TAG.
- Different TA effective times increase the implementation complexity of the terminal device and do not conform to the definition of the same TAG.
- the embodiment of the present application provides a method for determining the TA effective time, by determining the interval time N before the TA effective time, and ensuring that the interval time N is included in the case of including multiple UL subcarrier intervals for the same terminal device UE. It is consistent. Therefore, in the same TAG, the TA effective time of the terminal device is consistent, and the uplink timing synchronization between the terminal device and the network device can be ensured.
- the terminal device determines the first subcarrier spacing from the M subcarrier intervals, and specifically determining the first subcarrier spacing is as follows:
- N 1 , N 2 refer to the smallest UL subcarrier spacing.
- the 15 kHz is taken as the standard.
- N 1 and N 2 refer to the maximum UL subcarrier spacing.
- the 30KHz is taken as the standard.
- the TA max refers to the minimum UL subcarrier spacing.
- the 15 kHz is taken as the standard.
- the TA max refers to the maximum UL subcarrier spacing.
- the TA max it is based on 30 kHz.
- the N 1 , N 2 , and TA max refer to the smallest UL subcarrier spacing.
- the 15KHz is taken as the standard.
- the N 1 , N 2 , and TA max refer to the maximum UL subcarrier spacing.
- the time interval is calculated, which is based on 30 kHz.
- the minimum UL subcarrier spacing referenced by N 1 , N 2 , TA max refers to the maximum UL subcarrier spacing.
- N 1 and N 2 are based on 15KHz
- TA max is based on 30KHz.
- the largest UL subcarrier spacing referenced by N 1 , N 2 , TA max refers to the smallest UL subcarrier spacing.
- N 1 and N 2 are based on 30KHz
- TA max is based on 15KHz.
- the base station is configured with random access resources on the UL and SUL, and the subcarrier spacing of the Msg3 is 15 kHz or 30 kHz, respectively, and the ⁇ corresponding to the TA max refers to the minimum 15 kHz or the ⁇ reference to the maximum 30 kHz.
- the L uplink UL subcarrier spacings s described above may also be the SCS of the bandwidth part BWP of all active states, or the subcarrier spacing of multiple BWPs configured by the terminal, or the subcarriers of all BWPs. interval.
- the subcarrier spacing of the uplink carrier resource for transmitting Msg 3 may be 15 kHz.
- the subcarrier spacing of the uplink resource may be reconfigured, for example, allocated carrier resources.
- the subcarrier spacing may be 30KHz or 60KHz. Therefore, in order to consider the influence of random access, the influence of the Msg 3 subcarrier spacing is considered here in the determination process of TA max .
- each uplink carrier may correspond to different message 3 subcarrier intervals, for example, when the UE is configured with an uplink carrier UL and a supplementary uplink carrier (SUL).
- Message 3 may have 2 subcarrier spacings, for example 15 kHz and 30 kHz, respectively. Therefore, the influence of multiple Msg3 subcarrier spacings is also considered in the determination of TA max .
- the uplink UL subcarrier spacing adopted by the UE is different from that of Msg 3.
- TA max should take the minimum value of Msg 3 and the configured subcarrier spacing SCS of the UL.
- the subcarrier spacing SCS of the carrier resource for transmitting Msg 3 is 15KHz, and when the time interval is calculated, N 1 , N 2 is based on 30KHz, and TA max is based on 15KHz.
- first possible subcarrier spacing of the ten possible N 1 , N 2 , and TA max references The above describes the case of the first possible subcarrier spacing of the ten possible N 1 , N 2 , and TA max references. It should be understood that the above case is only an example and not a limitation, in various processes for determining the first subcarrier spacing. There may be more combinations of first subcarrier spacings for references to N 1 , N 2 , TA max , and the application includes, but is not limited to, this.
- the determining, by the terminal device, the first threshold value, determining the first threshold value, and determining the first threshold value as the first sub-carrier interval, and participating in determining the TA effective time is determining, by the terminal device, the first threshold value, determining the first threshold value, and determining the first threshold value as the first sub-carrier interval, and participating in determining the TA effective time.
- the method provided by the foregoing application may also be used in combination with the prior art, for example, obtaining a minimum value in the first subcarrier spacing of the determined uplink carrier resource and the subcarrier spacing of the downlink carrier resource, thereby obtaining a sub Carrier spacing, which will not be described here. It should be understood that the application includes but is not limited thereto.
- determining, according to the first subcarrier interval, an effective moment of a timing advance amount TA of each of the L carriers including: according to the first sub And determining, by the carrier interval, a first time interval corresponding to the first carrier of the L carriers, where the first time interval is a time interval between a receiving time of the downlink signal and an effective time of the TA; determining, according to the first time interval, The timing of the timing advance TA of each of the L carriers.
- the terminal device determines, according to the first subcarrier interval, a first time interval corresponding to the first carrier of the L carriers, where the first time interval is a receiving moment of the downlink signal and an effective moment of the TA a time interval between the second time interval; and determining, according to the first time interval, an effective time of the timing advance amount TA of each of the L carriers.
- the subcarrier spacing of the downlink DL is 15 kHz
- the subcarrier spacing of the uplink UL is 30 kHz
- the first time is obtained by the formula (1).
- the first time interval includes one or more durations of the first duration, the second duration, and the third duration, according to the first subcarrier spacing Determining a first time interval corresponding to the first carrier of the L carriers, including:
- a first duration which is a duration required to process the downlink signal
- a second duration which is a duration required to prepare an uplink signal
- a third duration which is a maximum duration allowed by the 12-bit or 6-bit timing advance command TAC corresponding to the first subcarrier interval.
- the first time interval may refer to a maximum subcarrier interval, or a minimum subcarrier interval.
- the maximum subcarrier spacing is 30 KHz
- the minimum subcarrier spacing is 15 KHz
- the first time interval determined according to the above method is 5 ms.
- 5ms is equivalent to 5 slots, that is, for the 15KHz uplink carrier, the TA is applied from the 6th slot.
- the 30KHz subcarrier spacing 5ms is equivalent to 10 slots, and for the 30KHz uplink carrier, TA is applied from the 11th slot.
- the first time interval when referring to the maximum subcarrier interval, for a small subcarrier interval, the first time interval cannot implement an integer number of time slots, and the first time interval needs to be rounded up.
- the rounding operation represents selecting a value greater than the original first time interval and being the smallest integer multiple of the time slot duration corresponding to the minimum subcarrier spacing.
- the first time interval determined according to the above method is 2.5 ms, including 2 carriers (15 kHz and 30 kHz). Since 2.5 ms is not an integer multiple of the corresponding slot of the 15 kHz subcarrier interval, the first time interval is required to be 2.5 ms.
- the step size of 15KHz is rounded up, that is, 3ms.
- 3ms corresponds to 3 time slots (15KHz) and 6 time slots (30KHz) respectively. Then, corresponding to the subcarrier spacing of 15 KHz, a new TA is applied from the 4th slot, corresponding to a subcarrier spacing of 30 KHz, and a new TA is applied from 7 slots.
- 12bit is only an example and not a limitation, and may take other possible values less than 12bit, for example, may be 6bit.
- the length of time required to process the downlink signal is related to the downlink signal configuration, such as demodulation reference signal configuration, and/or downlink signal subcarrier spacing, and/or UE processing capability. It should be understood that the duration required for preparing the uplink signal is related to the uplink signal subcarrier spacing, and/or the UE processing capability.
- the process of determining the first time interval enumerated herein may be summed according to formula (1) by determining the durations of N 1 , N 2 , L 2 , and TA max respectively, thereby obtaining the first time interval N.
- the embodiment of the present application may also determine only one or more durations of N 1 , N 2 , L 2 , and TA max . During the development of the technology, only at least one duration may be determined, and the relationship may be obtained through a certain relationship.
- a time interval N any method for determining the duration of any one or more of N 1 , N 2 , L 2 , and TA max by the method provided by the present application falls within the scope of protection of the present application.
- the method when at least two carriers of the L carriers are used in a random access procedure, and the carrier used for transmitting the message Msg 3 includes at least two subcarrier intervals Before determining the third duration according to the first subcarrier interval, the method further includes: determining, according to the at least two subcarrier intervals, the first subcarrier spacing.
- the first time interval further includes a fourth duration, where the first time interval further includes a fourth duration, where the fourth duration is the cell according to the cell The length of time determined by the multiplexing mode; and/or
- the fourth duration is a duration determined by the terminal device according to a frequency range in which the terminal device or the network device operates.
- the method further includes: determining a first mapping relationship, where the first mapping relationship includes a one-to-one mapping relationship between multiple subcarrier spacings and multiple durations And determining, according to the first subcarrier interval, an effective time of the timing advance TA of each of the L carriers, including: determining, according to the first mapping relationship, corresponding to the first subcarrier spacing a first time interval; determining, according to the first time interval, an effective time of the timing advance amount TA of each of the L carriers.
- the terminal device learns the sub-carrier spacing of all the uplink ULs in a TAG according to the configuration of the network device, and then receives the MAC-CE that is sent by the network device and includes the TA adjustment command, and determines the TA effective time, and then the application can be applied.
- the new TA in MAC-CE is the MAC-CE that is sent by the network device and includes the TA adjustment command, and determines the TA effective time, and then the application can be applied.
- the new TA in MAC-CE is the sub-carrier spacing of all the uplink ULs in a TAG according to the configuration of the network device, and then receives the MAC-CE that is sent by the network device and includes the TA adjustment command, and determines the TA effective time, and then the application can be applied.
- the new TA in MAC-CE is the MAC-CE that is sent by the network device and includes the TA adjustment command, and determines the TA effective time, and then the application can be applied.
- the terminal After receiving the MAC-CE including the TA adjustment, the terminal determines the first time interval according to the minimum or maximum uplink subcarrier spacing in the same TAG. For example, the terminal device can determine the first time interval according to a preset function.
- the first subcarrier spacing is the smallest subcarrier spacing of the M subcarrier spacings; or the first subcarrier spacing is the M subcarrier spacings. The largest subcarrier spacing in the middle.
- the first subcarrier spacing may be a maximum/minimum value among all uplink subcarrier intervals, or a maximum/minimum value of a subcarrier interval of a bandwidth portion of all active states, or a configuration of a terminal.
- the determining, by the terminal device, the first threshold value, determining the first threshold value, and determining the first threshold value as the first sub-carrier interval, and participating in determining the TA effective time is determining, by the terminal device, the first threshold value, determining the first threshold value, and determining the first threshold value as the first sub-carrier interval, and participating in determining the TA effective time.
- the method further include:
- the uplink information is transmitted according to the timing advance amount TA.
- the terminal device determines the first time interval N
- the time represented by the first time interval N is added from the time of receiving the downlink signal. It is possible to determine the effective time of the TA.
- the uplink information may be sent according to the timing advance TA.
- a communication apparatus including: a determining unit, configured to determine a first subcarrier spacing from the M subcarrier spacings, wherein the M subcarrier spacings are corresponding to L carriers used by the terminal device a subcarrier spacing, where L ⁇ M ⁇ 2; the determining unit is further configured to determine, according to the first subcarrier spacing, an effective time of the timing advance TA of each of the L carriers.
- the determining unit is further configured to: determine, according to the first subcarrier interval, a first time interval corresponding to the first carrier of the L carriers, the first time The interval is a time interval between a reception time of the downlink signal and an effective time of the TA; and according to the first time interval, an effective time of the timing advance amount TA of each of the L carriers is determined.
- the first time interval includes one or more durations of the first duration, the second duration, and the third duration
- the determining unit is further configured to: Determining, according to the first subcarrier interval, a first duration, which is a duration required for processing the downlink signal; and/or determining a second duration according to the first subcarrier interval, where the second duration is preparing an uplink signal The required duration; and/or determining a third duration according to the first subcarrier spacing, the third duration being a maximum duration allowed by the 12-bit or 6-bit timing advance command TAC corresponding to the first subcarrier spacing .
- the method further includes: determining, according to the at least two subcarrier intervals, the first subcarrier spacing.
- the first time interval further includes a fourth duration, where the first time interval further includes a fourth duration, where the fourth duration is a duration determined by the terminal device according to the cell multiplexing mode; and/or
- the fourth duration is a duration determined by the terminal device according to a frequency range in which the terminal device or the network device operates.
- the determining unit is further configured to: determine a first mapping relationship, where the first mapping relationship includes a plurality of subcarrier spacings and a plurality of durations a mapping relationship; and determining, according to the first mapping relationship, a first time interval corresponding to the first subcarrier spacing; determining, according to the first time interval, an effective timing advance TA of each of the L carriers time.
- the first subcarrier spacing is the smallest subcarrier spacing of the M subcarrier spacings; or the first subcarrier spacing is the M subcarrier spacings. The largest subcarrier spacing in the middle.
- the apparatus further includes a sending unit, configured to send uplink information according to the timing advance amount TA.
- a communication device having the function of implementing the behavior of a terminal device in the design of any of the possible implementation methods of the first aspect and the first aspect described above.
- the functions may be implemented by hardware or by corresponding software implemented by hardware.
- the hardware or software includes one or more modules corresponding to the functions described above.
- the modules can be software and/or hardware.
- the communication device includes a memory and a processor for coupling with the memory, executing instructions in the memory to implement the first aspect and the first Any of a possible implementation methods of the method; the memory for storing program instructions and data.
- a fourth aspect a computer readable storage medium for storing a computer program, the computer program comprising the method for implementing any of the above first aspect and any one of the possible implementation methods of the first aspect Instructions.
- a computer program product comprising computer program code, when the computer program code is run on a computer, causing the computer to perform any of the first aspect and the first aspect of the first aspect Method of designing any of the communication methods.
- a chip system comprising a processor for supporting a network device to implement the functions involved in the above aspects, for example, generating, receiving, determining, transmitting, or processing the method involved in the foregoing method Data and / or information.
- the chip system further comprises a memory for storing necessary program instructions and data of the terminal device.
- the chip system can be composed of chips, and can also include chips and other discrete devices.
- FIG. 1 is a schematic diagram of an example of a wireless communication system in accordance with an embodiment of the present application.
- FIG. 2 is a schematic diagram of interaction between a terminal device and a network device in a TA adjustment process.
- FIG. 3 is a schematic diagram of the terminal device transmitting uplink information according to the timing advance TA.
- FIG. 4 is a schematic diagram of an example of an effective time of a TA according to an embodiment of the present application.
- FIG. 5 is a schematic flowchart of a method for determining a TA effective time provided by an embodiment of the present application.
- FIG. 6 is a schematic block diagram of an example communication device according to an embodiment of the present application.
- FIG. 7 is a schematic structural diagram of an example terminal device according to an embodiment of the present application.
- FIG. 8 is a schematic structural diagram of still another terminal device according to an embodiment of the present application.
- the “protocol” may refer to a standard protocol in the communication field, and may include, for example, an LTE protocol, an NR protocol, and related protocols used in a future communication system.
- the present application includes but is not limited thereto.
- pre-definition may be implemented by pre-storing corresponding codes, tables, or other manners that can be used to indicate related information in a device (for example, including a terminal device and a network device).
- a device for example, including a terminal device and a network device.
- pre-definition can be defined in the protocol.
- reporting and “feedback” are often used interchangeably, but those skilled in the art can understand the meaning thereof.
- the feedback CSI and the feedback CSI may all be substantially the CSI transmitted through the physical uplink channel. Therefore, in the embodiments of the present application, the meanings to be expressed are consistent when the distinction is not emphasized.
- LTE long term evolution
- FDD frequency division duplex
- time division duplex time division duplex
- 5G fifth generation
- 5G fifth generation
- NR new radio
- FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for use with embodiments of the present application.
- the wireless communication system 100 can include one or more network devices, such as the network device 101 shown in FIG. 1; the wireless communication system 100 can also include one or more terminal devices, for example, FIG. Terminal device #1 102, terminal device #2 103 are shown.
- the wireless communication system 100 can support Coordinated Multiple Points Transmission (CoMP), that is, multiple cells or multiple network devices can cooperatively participate in data transmission of one terminal device or jointly receive data transmitted by one terminal device, or Multiple cells or multiple network devices perform cooperative scheduling or cooperative beamforming.
- CoMP Coordinated Multiple Points Transmission
- the multiple cells may belong to the same network device or different network devices, and may be selected according to channel gain or path loss, received signal strength, received signal instructions, and the like.
- the network device in the wireless communication system may be any device with a wireless transceiver function or a chip that can be disposed on the device, including but not limited to: a base station, an evolved base station (eNB) , a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), or a transmission and reception point (transmission) And reception point (TRP), etc., may also be a gNB in the NR system, or may be a component or a part of devices constituting a base station, such as a central unit (CU), a distributed unit (DU), or Baseband unit (BBU), etc.
- a base station such as a central unit (CU), a distributed unit (DU), or Baseband unit (BBU), etc.
- CU central unit
- DU distributed unit
- BBU Baseband unit
- a radio access network device is referred to as a network device.
- a network device refers to a radio access network device.
- the network device may refer to the network device itself, or may be a chip applied to the network device to complete the wireless communication processing function.
- the gNB can include CUs and DUs.
- the gNB may also include a radio unit (RU).
- the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
- the CU implements radio resource control (RRC), the function of the packet data convergence protocol (PDCP) layer, and the DU implements the wireless chain.
- RRC radio resource control
- PDCP packet data convergence protocol
- the DU implements the wireless chain.
- the functions of the radio link control (RLC), the media access control (MAC), and the physical (PHY) layer Since the information of the RRC layer eventually becomes information of the PHY layer or is transformed by the information of the PHY layer, high-level signaling, such as RRC layer signaling or PHCP layer signaling, can also be used in this architecture.
- the network device can be a CU node, or a DU node, or a device including a CU node and a DU node.
- the CU may be divided into network devices in the access network RAN, and the CU may be divided into network devices in the core network CN, which is not limited herein.
- the terminal device in the wireless communication system may also be referred to as a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), and the like.
- the terminal device in the embodiment of the present application may be a mobile phone, a tablet, a computer with wireless transceiver function, or may be applied to virtual reality (VR), augmented reality (AR). ), industrial control, self driving, remote medical, smart grid, transportation safety, smart city, and smart home ) Wireless terminals in scenarios such as .
- VR virtual reality
- AR augmented reality
- the foregoing terminal device and a chip applicable to the foregoing terminal device are collectively referred to as a terminal device. It should be understood that the specific technology and specific device configuration adopted by the terminal device in this embodiment of the present application are not limited.
- the network device may be a serving network device, and the serving network device may refer to providing an RRC connection, a non-access stratum (NAS) for the terminal device through a wireless air interface protocol.
- Network device for at least one service in mobility management and security input.
- the network device may also be a cooperative network device.
- the serving network device may send control signaling to the terminal device, and the cooperative network device may send data to the terminal device; or the serving network device may send control signaling to the terminal device, where the serving network device and the cooperative network device may send data to the terminal device; Alternatively, both the serving network device and the cooperative network device may send control signaling to the terminal device, and both the serving network device and the cooperative network device may send data to the terminal device; or the cooperative network device may send control signaling to the terminal device, the service At least one of the network device and the cooperative network device may transmit data to the terminal device; or the cooperative network device may transmit control signaling and data to the terminal device.
- This embodiment of the present application is not particularly limited.
- network device and the terminal device are schematically illustrated in FIG. 1 for convenience of understanding, but this should not constitute any limitation to the present application, and a more or less number of network devices may be included in the wireless communication system.
- a network device that can communicate with different terminal devices may be the same network device or a different network device, and the number of network devices that communicate with different terminal devices may be the same. Different, this application includes but is not limited to.
- the terminal device may be any terminal device that has a wireless connection relationship with one or more network devices in a wireless communication system. It can be understood that any one of the terminal devices in the wireless communication system can implement wireless communication based on the same technical solution.
- the terminal device is represented by the UE, and the base station is identified by the gNB. This application includes but is not limited to.
- Time advance group A group of cells configured by a network device through radio resource control (RRC) signaling, that is, the network device configures a time advance TA for the cell, and multiple cells have The same TA forms a TAG.
- RRC radio resource control
- time advance time advance
- the signal is delayed in spatial transmission, and the TA is used to characterize the distance between the terminal device and the antenna port of the network device.
- the communication system may use an uplink timing advance mechanism.
- the UE sends the uplink information according to the timing advance.
- the timing advance is essentially a negative offset between the start time of the downlink subframe and the start time of the uplink subframe.
- the base station can control the time when the uplink signal from different UEs arrives at the base station by appropriately controlling the offset of each UE. For the UE closer to the base station, the uplink information can be sent according to a smaller timing advance, which is farther away from the base station.
- the UE because the signal has a large transmission delay, needs to send uplink information according to a large timing advance.
- the network device configures the same timing advance TA for one or more cells. At the same time, the network device adjusts the TA according to the location, distance, and the like of the terminal device. It should be understood that the network device may be adjusted according to a certain period, or the network device may be adjusted according to information such as the location, distance, and the like of the terminal device, and the application includes but is not limited thereto.
- the terminal device Receiving, by the terminal device, a TA adjustment command sent by the network device, where the TA adjustment command includes a TA adjustment amount, and the terminal device determines a new timing advance amount according to the timing advance TA of the current cell and the newly received TA adjustment amount, and according to the new The timing advance amount sends uplink information.
- FIG. 2 is a schematic diagram of interaction between a terminal device and a network device during a TA adjustment process. As shown in FIG. 2, the process of the terminal TA adjustment includes S201 to S205.
- the network device sends configuration information to the terminal device, where the uplink subcarrier spacing is indicated.
- the network device sends a TA adjustment command to the terminal device.
- the terminal device receives a TA adjustment command sent by the base station, and determines a time interval at which the TA takes effect.
- the terminal device may include some or all of the above steps in the actual TA adjustment process, and the embodiment of the present application is not limited thereto.
- FIG. 3 shows a schematic diagram of a UE transmitting uplink information according to a timing advance.
- the UE if the signal transmission distance between the UE and the base station is D, the base station expects to receive the uplink signal sent by the UE at time T 0, the UE needs to send information in the uplink time T 0 -T TA, wherein, the TA represents Timing advance, which takes the value D/c, and c indicates the rate of electromagnetic wave transmission. Since the UE has mobility, the distance D of the signal transmitted between the UE and the base station also changes. Therefore, the UE needs to continuously adjust the value of the timing advance to ensure that the uplink signal arrives at the base station and the base station expects the uplink signal to reach the base station. The error of the moment is within an acceptable range.
- the base station can determine the timing advance of each UE by measuring the uplink signal transmitted by the UE.
- the base station can measure the timing advance according to any uplink signal sent by the UE, and the base station can notify the UE of the timing advance by the following two methods.
- the base station may notify the UE of the timing advance TA by a TAC field of a random access response (RAR).
- RAR random access response
- the base station measures the preamble sent by the UE.
- the size of the TAC field of the RAR may be, for example, 11 bits, and the corresponding timing advance coefficient ranges from 0 to 1282.
- the timing advance coefficient is multiplied by 16T s .
- the value of the current uplink advancement, where 16T s is the length of time, and in the LTE system, T s 1 / (15000 ⁇ 2048) seconds.
- the base station may send the UE to the UE by using a timing advance command media access control control element (TAC MAC CE).
- TAC MAC CE timing advance command media access control control element
- the UE performs uplink synchronization with the base station in the random access process, but the communication environment of the UE may change with time, so that the timing advance in the random access process is no longer applicable to the new communication environment, for example, :
- the transmission delay between the UE and the base station may change greatly in a short time
- the current transmission path disappears and switches to a new communication path, and the transmission delay of the new communication path has a large change with respect to the original communication path;
- the crystal oscillator offset of the UE, and the accumulation of offset for a long time may cause an uplink timing error
- the UE needs to constantly update its timing advance.
- Fig. 4 shows a schematic diagram of the effective timing of the TA.
- the first time interval N may be defined as K slots, and the total duration of the first time interval N includes four parts of the duration, which are N 1 , N 2 , L 2 , and TA max , respectively, which may represent for:
- N ceil(N 1 +N 2 +L 2 +TA max ) ⁇ ⁇ (1)
- N 1 , N 2 , TA max are related to the uplink subcarrier spacing.
- N 1 represents the time required for the terminal device to process the physical downlink share channel (PDSCH)
- N 2 represents the delay of the terminal device to prepare the physical uplink share channel (PUSCH)
- L 2 represents the terminal device.
- TA max is the maximum duration allowed by the timing advance command TAC.
- TAC the maximum duration allowed by the 12-bit TAC, or the maximum duration allowed by the 6-bit TAC.
- the first time interval includes, in addition to the foregoing enumerated N 1 , N 2 , L 2 , and TA max , a duration determined by the terminal device according to the cell multiplexing mode, or the fourth duration is The duration determined by the terminal device according to the frequency range in which the terminal device or the network device operates. For example, the duration of the handover of the terminal device in different working modes or working frequency bands, and the time when the terminal device performs the handover is denoted as N TA offset .
- the duration represented by the N TA offset and the maximum duration allowed by the 12-bit or 6-bit TAC mentioned above may be added as a whole as a TA max , for example, may be allowed by the TAC.
- the N TA offset is the time when the terminal device performs the handover, for example, the time when the terminal device performs the uplink and downlink handover.
- the uplink and downlink handover time N TA offset is related to the working mode or the working frequency band of the communication system, and the value of the protocol N TA offset can be listed as shown in Table 1.
- FR1 represents a frequency band with a frequency less than 6 GHz
- FR2 represents a frequency band with a frequency greater than 6 GHz.
- the FR2 band can be FDD, or TDD, or both.
- N TA offset (unit: T C ) FDD FR1 band 0 TDD FR1 band 39936 or 25600 FR2 band 13792
- FR2 can be FDD, or TDD, or both.
- FDD FR1 and TDD bands do not include LTE and NR coexistence scenarios 25600 FDD FR1 frequency band includes scenarios where LTE and NR coexist 0 TDD FR1 frequency band includes scenarios where LTE and NR coexist 39936 FR2 band 13792
- the value of the N TA offset may be obtained by using one or more messages in the RRC signaling, downlink control information (DCI), and media access control control element (MAC-CE); or
- the implicit manner determines, for example, by implicitly indicating the value of NTA offset ; or the value of NTA offset is predefined or pre-configured. It should be understood that the manner in which the value of the N TA offset is obtained is not limited in this application.
- FR1 represents a scene where the operating frequency is less than 6 GHz
- FR2 represents a scene in which the operating frequency is greater than or equal to 6 GHz.
- ⁇ f max ⁇ 15,30,60,120,240 ⁇ 10 3 , applied to different working frequency bands or subcarrier spacings
- N f ⁇ 512,1024,2048 ⁇ applied to different fast Fourier transforms (fast fourier transform) Transform, FFT) sampling frequency.
- the N TA offset may be determined according to the non-SUL carrier.
- the second uplink refers to a supplemental uplink (SUL).
- N ceil(N 1 +N 2 +L 2 +N TA +N TA offset ) ⁇ ⁇ (2)
- the downlink signal in the embodiment of the present application may be a signal transmitted by the PDCCH, such as a DCI, a demodulation reference signal (DMRS), or the like; or may be a data or information transmitted by the PDSCH.
- the uplink signal may be data or information transmitted by the PUSCH, such as uplink scheduling information, uplink control information (UCI), feedback information, etc., specifically, such as an acknowledgement (ACK)/negative acknowledgement (NACK) ), an uplink scheduling request (SR), and the like. It should be understood that the application includes but is not limited thereto.
- the 5G mobile communication system supports multiple subcarrier spacings (for example, different service types or working frequencies are applied for each seed carrier interval), and the lengths of the corresponding cyclic prefixes (CPs) of the different subcarrier spacing symbols are different.
- the anti-delay impact performance of different sub-carrier spacings is also different. Therefore, the UE uses different timing advances in different scenarios, thereby satisfying the diversified requirements of the 5G mobile communication system for uplink synchronization.
- different subcarrier spacings in the carrier resources are 15 kHz, 30 kHz, 60 kHz, and 120 kHz, which may be more likely in the future. It should be understood that the present application includes but is not limited thereto.
- N 1 decoding time N 1 has two different reference cases, because the TA adjustment command of the present disclosure may be included in the MAC-CE, carried on a PDSCH, one is additional demodulation reference signal DMRS, The decoding time of the PDSCH is the decoding time of the PDSCH without the additional demodulation reference signal DMRS.
- the decoding time of the PDSCH with the additional DMRS is taken as an example. In detail, it should be understood that the embodiments of the present application include but are not limited thereto.
- the symbol here is the smallest unit of time domain resources.
- the embodiment of the present application does not limit the length of time of one symbol.
- the length of one symbol can vary for different subcarrier spacing.
- the symbols may include uplink symbols and downlink symbols.
- the uplink symbols may be referred to as, for example, single carrier-frequency division multiple access (SC-FDMA) symbols or orthogonal frequency division multiple access (orthogonal).
- SC-FDMA single carrier-frequency division multiple access
- OFDM orthogonal frequency division multiple access
- the downlink symbol may be referred to as an OFDM symbol, for example, but is not limited thereto.
- N 2 and the uplink subcarriers are also shown in Table 4 below, where ⁇ denotes a subcarrier spacing, where 0, 1, 2, and 3 correspond to 15 kHz, 30 kHz, 60 kHz, and 120 kHz, respectively.
- TA max The relationship between TA max and the uplink subcarrier is also shown in Table 5 below, in which the length of time of TA max when the subcarrier spacing is 15 kHz, 30 kHz, 60 kHz, and 120 kHz, respectively.
- Subcarrier spacing (unit: KHz)
- TA max (unit: ms) 15 2 30 1 60 0.5 120 0.25
- a plurality of cells are included in a time advance group (TAG) as described above, and each cell may include multiple terminal devices UE, and each UE is configured with multiple Uplink carrier resources (up link, UL).
- TAG time advance group
- the existing solution is for a plurality of uplink resources UL in a time advance group TAG, because of a difference in its sub-carrier spacing (SCS), specifically, when the terminal device UE is configured with 15KHz, 30KHz, 60KHz, At a subcarrier spacing of 120 KHz, an interval time N can be determined for each seed carrier interval.
- SCS sub-carrier spacing
- ceil(58 symbol) 5ms.
- 0.5ms 7 symbol
- 2ms 28 symbol.
- the first time interval is obtained by the formula (1).
- 0.5ms 14 symbol
- 1ms 28 symbol.
- the embodiment of the present application provides a method for determining the TA effective time, by determining the interval time N before the TA effective time, and ensuring that the interval time N is included in the case of including multiple UL subcarrier intervals for the same terminal device UE. It is consistent. Therefore, in the same TAG, the TA effective time of the terminal device is consistent, and the uplink timing synchronization between the terminal device and the network device can be ensured.
- FIG. 5 is a schematic flowchart of a method for determining a TA effective time provided by an embodiment of the present application.
- the method 500 includes:
- the terminal device determines a first subcarrier spacing from the M subcarrier intervals, where the M subcarrier spacings are subcarrier spacings corresponding to the L carriers used by the terminal device, where L ⁇ M ⁇ 2.
- the first subcarrier spacing is the smallest subcarrier spacing of the M subcarrier spacings; or the first subcarrier spacing is the largest subcarrier spacing of the M subcarrier spacings.
- the first subcarrier spacing may be a maximum/minimum value among all uplink subcarrier intervals, or a maximum/minimum value of a subcarrier interval of a bandwidth part (BWP) of all active states. Or one or more of the maximum/minimum value of the subcarrier spacing of the plurality of BWPs configured by the terminal, or the maximum/minimum value of the subcarrier spacing of all the BWPs. It may be fixed to a certain subcarrier spacing, for example, for a low frequency (the operating frequency is less than or equal to 6 GHz), and may be fixed at a frequency of 15 kHz.
- the embodiments of the present application include but are not limited thereto.
- a terminal device is taken as an example for description. It is assumed that the network device configures L uplink carrier resources UL for the terminal device #A, and each carrier resource of the L uplink carrier resources UL has one sub-port.
- the carrier spacing that is, the L uplink carrier resources UL has a total of M subcarrier spacings.
- the subcarrier spacing of two or more ULs in the L uplink carrier resources UL may be the same. At present, different subcarrier spacings in the carrier resources are 15 kHz, 30 kHz, 60 kHz, and 120 kHz, which may be more likely in the future. It should be understood that the present application includes but is not limited thereto.
- the 4 ULs may have only one subcarrier interval, for example, the subcarrier spacing of each of the 4 ULs is 15 KHz; or the 4 The UL may have two subcarrier spacings, for example, the subcarrier spacing of 1 UL in 4 ULs is 15 KHz, and the other 3 UL subcarrier spacings are 30 KHz; or the 4 ULs may have three subcarrier spacings, such as The subcarrier spacing of one UL in the four ULs is 15 kHz, the subcarrier spacing of one UL is 30 kHz, and the spacing of the other two UL subcarriers is 60 kHz; or the four ULs may have four seed carriers.
- Interval for example, the subcarrier spacing of one UL in four ULs is 15 kHz, the subcarrier spacing of one UL is 30 kHz, the subcarrier spacing of one UL is 60 kHz, and the other subcarrier spacing of one UL is It is 120KHz.
- the above list is only one possible case, just to illustrate the possible relationship between the subcarrier spacing and the carrier resources, it should be understood that the present application includes but is not limited thereto.
- the relationship between L and M may be that the number of carrier resources L is greater than or equal to the number of subcarrier spacings M, where L ⁇ M ⁇ 2, mainly because when the network device configures one carrier resource for the terminal device, One carrier resource must have only one subcarrier spacing, such as a 15 kHz subcarrier spacing.
- N 1 , N 2 , and TA max are all determined according to the subcarrier spacing of 15 KHz according to Table 1, Table 2, and Table 3, respectively, so that no difference occurs.
- M may be a positive integer greater than or equal to 2.
- the subcarrier spacing of the carrier resources of the downlink signal is referred to.
- the first time interval may refer to a maximum subcarrier interval, or a minimum subcarrier interval.
- the maximum subcarrier spacing is 30 KHz
- the minimum subcarrier spacing is 15 KHz
- the first time interval determined according to the above method is 5 ms.
- 5ms is equivalent to 5 slots, that is, for the 15KHz uplink carrier, the TA is applied from the 6th slot.
- the 30KHz subcarrier spacing 5ms is equivalent to 10 slots, and for the 30KHz uplink carrier, TA is applied from the 11th slot.
- the first time interval when referring to the maximum subcarrier interval, for a small subcarrier interval, the first time interval cannot implement an integer number of time slots, and the first time interval needs to be rounded up.
- the rounding operation represents selecting a value greater than the original first time interval and being the smallest integer multiple of the time slot duration corresponding to the minimum subcarrier spacing.
- the first time interval determined according to the above method is 2.5 ms, including 2 carriers (15 kHz and 30 kHz). Since 2.5 ms is not an integer multiple of the corresponding slot of the 15 kHz subcarrier interval, the first time interval is required to be 2.5 ms.
- the step size of 15KHz is rounded up, that is, 3ms.
- 3ms corresponds to 3 time slots (15KHz) and 6 time slots (30KHz) respectively. Then, corresponding to the subcarrier spacing of 15 KHz, a new TA is applied from the 4th slot, corresponding to a subcarrier spacing of 30 KHz, and a new TA is applied from 7 slots.
- ⁇ min ( ⁇ DL , ⁇ UL ), where ⁇ DL corresponds to the subcarrier spacing of the PDSCH, and ⁇ UL corresponds to the uplink transmission corresponding hybrid automatic repeat request feedback acknowledgement (hybrid Subcarrier spacing of automatic repeat request acknowledge, HARQ-ACK.
- ⁇ min( ⁇ DL , ⁇ UL ), where ⁇ DL may be a subcarrier spacing corresponding to a PDCCH for downlink scheduling of a PUSCH, and ⁇ UL corresponds to a subcarrier spacing of an uplink transmitting PUSCH .
- ⁇ in the middle corresponds to the subcarrier spacing of the uplink PUSCH.
- the PDCCH or the PDSCH is generally referred to as a downlink carrier resource DL, and generally only corresponds to one subcarrier spacing.
- the application includes but is not limited thereto.
- the subcarrier spacing of the downlink DL is 15 kHz
- the subcarrier spacing of the uplink UL is 30 kHz
- the terminal device determines the first subcarrier spacing from the M subcarrier intervals, and the method for specifically determining the first subcarrier spacing is as follows:
- N 1 , N 2 refer to the smallest UL subcarrier spacing.
- the 15 kHz is taken as the standard.
- N 1 and N 2 refer to the maximum UL subcarrier spacing.
- the 30KHz is taken as the standard.
- the TA max refers to the minimum UL subcarrier spacing.
- the 15 kHz is taken as the standard.
- the TA max refers to the maximum UL subcarrier spacing.
- the TA max it is based on 30 kHz.
- the N 1 , N 2 , and TA max refer to the smallest UL subcarrier spacing.
- the 15KHz is taken as the standard.
- the N 1 , N 2 , and TA max refer to the maximum UL subcarrier spacing.
- the minimum UL subcarrier spacing referenced by N 1 , N 2 , TA max refers to the maximum UL subcarrier spacing.
- N 1 and N 2 are based on 15KHz
- TA max is based on 30KHz.
- the largest UL subcarrier spacing referenced by N 1 , N 2 , TA max refers to the smallest UL subcarrier spacing.
- N 1 and N 2 are based on 30KHz
- TA max is based on 15KHz.
- the base station is configured with random access resources on the UL and SUL, and the subcarrier spacing of the Msg3 is 15 kHz or 30 kHz, respectively, and the ⁇ corresponding to the TA max refers to the minimum 15 kHz or the ⁇ reference to the maximum 30 kHz.
- the L uplink UL subcarrier spacing UL SCSs described above may also be the SCS of the bandwidth part of all active states, or the subcarrier spacing of multiple BWPs configured by the terminal, or the subcarriers of all BWPs. interval.
- the subcarrier spacing of the uplink carrier resource for transmitting Msg 3 may be 15 kHz.
- the subcarrier spacing of the uplink resource may be reconfigured, for example, allocated carrier resources.
- the subcarrier spacing may be 30KHz or 60KHz. Therefore, in order to consider the influence of random access, the influence of the Msg 3 subcarrier spacing is considered here in the determination process of TA max .
- each uplink carrier may correspond to different message 3 subcarrier intervals, for example, when the UE is configured with an uplink carrier UL and a supplementary uplink carrier (SUL).
- Message 3 may have 2 subcarrier spacings, for example 15 kHz and 30 kHz, respectively. Therefore, the influence of multiple Msg3 subcarrier spacings is also considered in the determination of TA max .
- the uplink UL subcarrier spacing adopted by the UE is different from that of Msg 3.
- TA max should take the minimum value of Msg 3 and the configured subcarrier spacing SCS of the UL.
- the subcarrier spacing SCS of the carrier resource for transmitting Msg 3 is 15KHz, and when the time interval is calculated, N 1 , N 2 is based on 30KHz, and TA max is based on 15KHz.
- first possible subcarrier spacing of the ten possible N 1 , N 2 , and TA max references The above describes the case of the first possible subcarrier spacing of the ten possible N 1 , N 2 , and TA max references. It should be understood that the above case is only an example and not a limitation, in various processes for determining the first subcarrier spacing. There may be more combinations of first subcarrier spacings for references to N 1 , N 2 , TA max , and the application includes, but is not limited to, this.
- the determining, by the terminal device, the first threshold value, determining the first threshold value, and determining the first threshold value as the first sub-carrier interval, and participating in determining the TA effective time is determining, by the terminal device, the first threshold value, determining the first threshold value, and determining the first threshold value as the first sub-carrier interval, and participating in determining the TA effective time.
- the method provided by the foregoing application may also be used in combination with the prior art, for example, obtaining a minimum value in the first subcarrier spacing of the determined uplink carrier resource and the subcarrier spacing of the downlink carrier resource, thereby obtaining a sub Carrier spacing, which will not be described here. It should be understood that the application includes but is not limited thereto.
- the method for determining the first subcarrier spacing is to ensure that the interval time N is consistent for the same terminal device UE in the case of including multiple UL subcarrier intervals. Therefore, in the same TAG, the TA effective time of the terminal device is consistent, and the uplink timing synchronization between the terminal device and the network device can be ensured.
- the terminal device determines, according to the first subcarrier interval, an effective time of the timing advance TA of each of the L carriers.
- the terminal device determines the first subcarrier interval, and further determines the effective timing of the timing advance TA of each carrier.
- the terminal device determines, according to the first subcarrier interval, a first time interval corresponding to the first carrier of the L carriers, where the first time interval is a receiving moment of the downlink signal and an effective moment of the TA a time interval between the second time interval; and determining, according to the first time interval, an effective time of the timing advance amount TA of each of the L carriers.
- the subcarrier spacing of the downlink DL is 15 kHz
- the subcarrier spacing of the uplink UL is 30 kHz
- the first time is obtained by the formula (1).
- the terminal device determines, according to the first subcarrier interval, a first duration N 1 , where the first duration is a duration required for processing the downlink signal; and/or determining, according to the first subcarrier interval, a second duration N 2 , the second duration is a length of time required to prepare an uplink signal; and/or determining a third duration TA max according to the first subcarrier spacing, where the third duration is corresponding to the first subcarrier spacing
- the maximum time allowed by the 12-bit timing advance command TAC is allowed; the terminal device determines the first time according to one or more durations of the first duration N 1 , the second duration N 2 , and the third duration TA max interval.
- 12bit is only an example and not a limitation here, and other possible values less than 12 bits may be taken, for example, 6 bits.
- the first time interval further includes a fourth duration, where the first time interval further includes a fourth duration, where the fourth duration is a duration determined by the terminal device according to the cell multiplexing mode; and/or the fourth duration It is the length of time that the terminal device determines according to the frequency range in which the terminal device or the network device operates.
- the fourth duration may be the duration of the terminal device switching in different working modes or working frequency bands.
- the fourth duration refer to the foregoing related description, and details are not described herein again.
- the length of time required to process the downlink signal is related to the downlink signal configuration, such as demodulation reference signal configuration, and/or downlink signal subcarrier spacing, and/or UE processing capability.
- the duration required for preparing the uplink signal is related to the uplink signal subcarrier spacing, and/or the UE processing capability.
- the process of determining the first time interval enumerated herein may be summed according to formula (1) by determining the durations of N 1 , N 2 , L 2 , and TA max respectively, thereby obtaining the first time interval N.
- the embodiment of the present application may also determine only one or more durations of N 1 , N 2 , L 2 , and TA max . During the development of the technology, only at least one duration may be determined, and the relationship may be obtained through a certain relationship.
- a time interval N any method for determining the duration of any one or more of N 1 , N 2 , L 2 , and TA max by the method provided by the present application falls within the scope of protection of the present application.
- N 1 , N 2 refer to the smallest UL subcarrier spacing.
- N 1 and N 2 refer to the maximum UL subcarrier spacing.
- the TA max refers to the minimum UL subcarrier spacing.
- TA max 2ms.
- the TA max refers to the maximum UL subcarrier spacing.
- the N 1 , N 2 , and TA max refer to the smallest UL subcarrier spacing.
- the 15KHz is taken as the standard.
- the N 1 , N 2 , and TA max refer to the maximum UL subcarrier spacing.
- the minimum UL subcarrier spacing referenced by N 1 , N 2 , TA max refers to the maximum UL subcarrier spacing.
- N 1 and N 2 are based on 15KHz
- TA max is based on 30KHz.
- the largest UL subcarrier spacing referenced by N 1 , N 2 , TA max refers to the smallest UL subcarrier spacing.
- N 1 and N 2 are based on 30KHz
- TA max is based on 15KHz.
- the base station configures random access resources on the UL and SUL, and the subcarrier spacing of the message 3 is 15 kHz or 30 kHz, respectively, and the ⁇ corresponding to the TA max refers to the minimum 15 kHz or the ⁇ reference to the maximum 30 kHz.
- the L uplink subcarrier spacing UL SCSs described above may also be the SCS of the bandwidth part of all active states, or the subcarrier spacing of multiple BWPs configured by the terminal, or the subcarrier spacing of all BWPs. .
- the subcarrier spacing of the uplink carrier resource for transmitting Msg 3 may be 15 kHz.
- the subcarrier spacing of the uplink resource may be reconfigured, for example, allocated carrier resources.
- the subcarrier spacing may be 30KHz or 60KHz. Therefore, in order to consider the influence of random access, the influence of the Msg 3 subcarrier spacing is considered here in the determination process of TA max .
- each uplink carrier may correspond to different message 3 subcarrier intervals. For example, if the UE is configured with uplink carrier UL and SUL, message 3 may have 2 subcarriers. The intervals are, for example, 15 kHz and 30 kHz, respectively. Therefore, the influence of multiple Msg3 subcarrier spacings is also considered in the determination of TA max .
- the uplink UL subcarrier spacing adopted by the UE is different from that of Msg 3.
- TA max should take the minimum value of Msg 3 and the configured subcarrier spacing SCS of the UL.
- the subcarrier spacing SCS of the carrier resource for transmitting Msg 3 is 15KHz, and when the time interval is calculated, N 1 , N 2 is based on 30KHz, and TA max is based on 15KHz.
- the foregoing describes nine possible situations in which the first time interval may be determined according to the first subcarrier spacing. It should be understood that the above is only an example and not a limitation, and the present application includes but is not limited thereto.
- the terminal device determines a first mapping relationship, where the first mapping relationship includes a one-to-one mapping relationship between multiple subcarrier spacings and multiple durations; and the terminal device according to the Determining, by the first mapping relationship, a first time interval corresponding to the first subcarrier interval; and determining, according to the first time interval, an effective time of the timing advance amount TA of each of the L carriers.
- the terminal device learns the sub-carrier spacing of all the uplink ULs in a TAG according to the configuration of the network device, and then receives the MAC-CE that is sent by the network device and includes the TA adjustment command, and determines the TA effective time, and then the application can be applied.
- the new TA in MAC-CE is the MAC-CE that is sent by the network device and includes the TA adjustment command, and determines the TA effective time, and then the application can be applied.
- the new TA in MAC-CE is the sub-carrier spacing of all the uplink ULs in a TAG according to the configuration of the network device, and then receives the MAC-CE that is sent by the network device and includes the TA adjustment command, and determines the TA effective time, and then the application can be applied.
- the new TA in MAC-CE is the MAC-CE that is sent by the network device and includes the TA adjustment command, and determines the TA effective time, and then the application can be applied.
- the terminal After receiving the MAC-CE including the TA adjustment, the terminal determines the first time interval according to the minimum or maximum uplink subcarrier spacing in the same TAG. For example, the terminal device can determine the first time interval according to a preset function in Table 6.
- Subcarrier spacing unit: KHz
- First time interval unit: ms 15 6+n 30 3+0.5n 60 2.25+0.25n 120 1.5+0.125n
- the value of the integer n can be ⁇ -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,12 ⁇ .
- the first time interval N may also be represented by the number of time slots equivalent to the first time interval in Table 4, as shown in Table 7.
- the set of values of the integer n is ⁇ -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10 , 11, 12 ⁇ .
- the terminal device determines the first time interval N
- the time represented by the first time interval N is added from the time of receiving the downlink signal. It is possible to determine the effective time of the TA.
- the uplink information may be sent according to the timing advance TA.
- the UE may send the uplink data according to the method shown in FIG. 3. For example, the UE may determine the downlink radio frame i according to the received downlink radio frame i-1, and determine the start time of the uplink radio frame i according to the timing advance amount TTA. T 0 -T TA , where T 0 is the starting time at which the UE receives the downlink radio frame i. The UE determines the start time of the uplink radio frame i, and can determine the time for transmitting the uplink information. The time when the UE sends the uplink information may be part of the time in the uplink radio frame.
- FIG. 6 is a schematic block diagram of a communication device 600 provided by an embodiment of the present application.
- the communication device 600 can correspond to (e.g., can be configured or itself) the terminal device described in the method 500 above.
- FIG. 6 shows a possible structural diagram of the terminal device involved in the above embodiment.
- the terminal device 600 includes a determining unit 610 and a transmitting unit 620.
- the communication device 600 can be a terminal device or a chip configured in the terminal device.
- the determining unit 610 is configured to determine a first subcarrier spacing from the M subcarrier intervals, where the M subcarrier spacings are subcarrier spacings corresponding to the L carriers used by the terminal device, where L ⁇ M ⁇ 2.
- the determining unit 610 is further configured to determine, according to the first subcarrier interval, an effective time of the timing advance TA of each of the L carriers.
- the determining unit 610 is further configured to determine, according to the first subcarrier interval, a first time interval corresponding to a first one of the L carriers, where the first time interval is a downlink signal receiving. a time interval between the time and the effective time of the TA; determining, according to the first time interval, an effective time of the timing advance TA of each of the L carriers.
- the determining unit 610 is further configured to determine, according to the first subcarrier interval, a first duration, where the first duration is a duration required for processing the downlink signal; and/or according to the first subcarrier.
- the second duration is the length of time required to prepare the uplink signal; and/or the third duration is determined according to the first subcarrier interval, where the third duration is corresponding to the first subcarrier spacing
- the first time interval is determined by the determining unit 610 according to one or more durations of the first duration, the second duration, and the third duration.
- the first time interval further includes a fourth duration, where the terminal duration is determined by the terminal device according to the cell multiplexing mode; and/or the fourth duration is the terminal device according to the terminal device or the network device
- the frequency range of the work is determined by the length of time.
- the fourth duration is the duration of the terminal device switching in different working modes or working frequency bands.
- the fourth duration refer to the foregoing related description, and details are not described herein again.
- the determining unit 610 is further configured to determine a first mapping relationship, where the first mapping relationship includes a one-to-one mapping relationship between multiple subcarrier spacings and multiple durations; and according to the first mapping relationship, Determining a first time interval corresponding to the first subcarrier interval; determining, according to the first time interval, an effective time of a timing advance amount TA of each of the L carriers.
- the first subcarrier spacing is the smallest subcarrier spacing of the M subcarrier spacings; or the first subcarrier spacing is the largest subcarrier spacing of the M subcarrier spacings.
- the first subcarrier interval may be a maximum/minimum value among all uplink subcarrier intervals, or a maximum/minimum value of a subcarrier interval of all active BWPs, or multiple configured by the terminal.
- the apparatus 600 further includes a sending unit 620, configured to send uplink information according to the timing advance TA.
- a sending unit 620 configured to send uplink information according to the timing advance TA.
- the communication device 600 may correspond to a terminal device in the communication method 200 and a terminal device in the communication method 500 according to an embodiment of the present application, and the communication device 600 may include a communication method 200 and a communication method for performing the method of FIG. A module of a method performed by a terminal device in 500.
- the modules in the communication device 600 and the other operations and/or functions described above are respectively implemented in the communication method 200 and the communication method 500 in FIG. 2, and are not described herein again for brevity.
- FIG. 7 is a schematic structural diagram of a terminal device 700 according to an embodiment of the present application.
- the terminal device 700 includes a processor 710 and a transceiver 720.
- the terminal device 700 further includes a memory 730.
- the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path for transferring control and/or data signals.
- the memory 730 is configured to store a computer program, and the processor 710 is configured to be called from the memory 730.
- the computer program is run to control the transceiver 720 to send and receive signals.
- the above processor 710 and memory 730 can synthesize a processing device, and the processor 710 is configured to execute the program code stored in the memory 730 to implement the above functions.
- the memory 730 can also be integrated in the processor 710 or independent of the processor 710.
- the foregoing terminal device may further include an antenna 740, configured to send downlink data or downlink control signaling output by the transceiver 720 by using a wireless signal.
- FIG. 8 is a schematic structural diagram of a terminal device 800 according to an embodiment of the present application.
- the terminal device 800 includes a processor 801 and a transceiver 802.
- the terminal device 800 further includes a memory 803.
- the processor 802, the transceiver 802 and the memory 803 communicate with each other through an internal connection path for transferring control and/or data signals
- the memory 803 is for storing a computer program
- the processor 801 is used for the memory 803.
- the computer program is called and run to control the transceiver 802 to send and receive signals.
- the processor 801 and the memory 803 may be combined to form a processing device 804 for executing the program code stored in the memory 803 to implement the above functions.
- the memory 803 can also be integrated in the processor 801 or independent of the processor 801.
- the terminal device 800 may further include an antenna 810, configured to send uplink data or uplink control signaling output by the transceiver 802 by using a wireless signal.
- the terminal device 800 may correspond to a terminal device in the communication method 200 and the communication method 500 according to an embodiment of the present application, and the terminal device 800 may include a module for performing a method performed by the terminal device of the communication method 200 of FIG. And, each module in the terminal device 800 and the other operations and/or functions described above are respectively implemented in order to implement the corresponding processes of the communication method 200 and the communication method 500 in FIG. For the sake of brevity, it will not be repeated here.
- the above-mentioned processor 801 can be used to perform the actions implemented by the terminal in the foregoing method embodiments, and the transceiver 802 can be used to perform the actions of the terminal to transmit or transmit to the terminal device described in the foregoing method embodiments.
- the transceiver 802 can be used to perform the actions of the terminal to transmit or transmit to the terminal device described in the foregoing method embodiments.
- the above processor 801 and memory 803 can be integrated into one processing device, and the processor 801 is configured to execute program code stored in the memory 803 to implement the above functions.
- the memory 803 can also be integrated in the processor 801.
- the terminal device 800 described above may also include a power source 805 for providing power to various devices or circuits in the terminal.
- the terminal device 800 may further include one or more of an input unit 814, a display unit 816, an audio circuit 818, a camera 820, a sensor 822, and the like, the audio circuit.
- a speaker 882, a microphone 884, and the like can also be included.
- the terminal device and the terminal device in the method embodiment are completely corresponding, and the corresponding module or unit performs corresponding steps, for example, the sending module (transmitter) method performs the steps sent in the method embodiment, The receiving module (receiver) performs the steps received in the method embodiment, and the steps other than transmitting and receiving may be performed by the processing module (processor).
- the function of the specific module can refer to the corresponding method embodiment.
- the sending module and the receiving module can form a transceiver module, and the transmitter and the receiver can form a transceiver to jointly implement the transceiver function; the processor can be one or more.
- the disclosed systems, devices, and methods may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
- the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
- the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .
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Abstract
Description
用于上行传输的工作模式和频带 | N TA offset(单位:T C) |
FDD FR1频段 | 0 |
TDD FR1频段 | 39936 or 25600 |
FR2频段 | 13792 |
用于上行传输的工作模式和频带 | N TA offset(单位:T C) |
FDD FR1和TDD频段不包括LTE和NR共存场景 | 25600 |
FDD FR1频段包括LTE和NR共存的场景 | 0 |
TDD FR1频段包括LTE和NR共存的场景 | 39936 |
FR2频段 | 13792 |
μ | PUSCH准备时间N 2(单位:符号symbol) |
0 | 10 |
1 | 12 |
2 | 23 |
3 | 36 |
子载波间隔(单位:KHz) | TA max(单位:ms) |
15 | 2 |
30 | 1 |
60 | 0.5 |
120 | 0.25 |
子载波间隔(单位:KHz) | 第一时间间隔(单位:ms) |
15 | 6+n |
30 | 3+0.5n |
60 | 2.25+0.25n |
120 | 1.5+0.125n |
子载波间隔(单位:KHz) | 生效时间间隔(单位:时隙slots) |
15 | 6+n |
30 | 6+n |
60 | 9+n |
120 | 12+n |
Claims (62)
- 一种通信方法,其特征在于,包括:接收定时提前量TA调整命令;根据对应于多于一个带宽部分BWP的子载波间隔,确定调整后的定时提前量TA的生效时刻。
- 根据权利要求1所述的方法,其特征在于,根据对应于多于一个BWP的子载波间隔,确定调整后的定时提前量TA的生效时刻包括:根据第一时长,第二时长和第三时长中的至少一项,确定调整后的TA的生效时隙,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个BWP的子载波间隔相关。
- 根据权利要求2所述的方法,其特征在于,所述第一时长为处理下行信号所需要的时长,所述第二时长为准备上行信号所需要的时长,所述第三时长为12bit定时提前命令TAC所允许指示的最大时长。
- 根据权利要求2或3所述的方法,其特征在于,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个BWP的子载波间隔相关包括:根据第一子载波间隔,确定第一时长和/或第二时长,所述第一子载波间隔为对应于多于一个BWP的子载波间隔中的最小子载波间隔;其中,所述第一时长为处理下行信号所需要的时长,所述第二时长为准备上行信号所需要的时长。
- 根据权利要求2或3所述的方法,其特征在于,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个BWP的子载波间隔相关包括:所述第一时长和/或第二时长与第一子载波间隔有关,所述第一子载波间隔为对应于多于一个BWP的子载波间隔中的最小子载波间隔;其中,所述第一时长为处理下行信号所需要的时长,所述第二时长为准备上行信号所需要的时长。
- 根据权利要求4所述的方法,其特征在于,根据第一子载波间隔,确定第一时长和/或第二时长包括:根据第一子载波间隔以及所述第一子载波间隔与第一时长的对应关系,确定第一时长,所述第一子载波间隔与第一时长的对应关系为子载波间隔与第一时长的多个对应关系中的一个;和/或,根据第一子载波间隔以及所述第一子载波间隔与第二时长的对应关系,确定第二时长,其中,所述第一子载波间隔与第二时长的对应关系为子载波间隔与第二时长的多个对应关系中的一个。
- 根据根据权利要求5所述的方法,其特征在于,所述第一时长和/或第二时长与所述第一子载波间隔有关包括:所述第一子载波间隔与第一时长具有对应关系,所述对应关系为至少一个子载波间隔与第一时长的至少两个对应关系中的一个,所述至少一个子载波间隔包括所述第一子载波间隔,和/或,所述第一子载波间隔与第二时长具有对应关系,所述对应关系为至少一个子载波间隔与第二时长的至少两个对应关系中的一个,所述至少一个子载波间隔包括所述第一子载波间隔。
- 根据权利要求2-7中任一项所述的方法,其特征在于,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个BWP的子载波间隔相关包括:根据第二子载波间隔,确定第三时长;所述第二子载波间隔为对应于多于一个BWP的子载波间隔中的最小子载波间隔,对应于多于一个BWP的子载波间隔包括用于传输Msg3的BWP的子载波间隔和终端设备所被配置的上行BWP的子载波间隔;其中,所述第三时长为对应所述第二子载波间隔的情况下,定时提前命令TAC所允许指示的最大时长。
- 根据权利要求2-7中任一项所述的方法,其特征在于,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个BWP的子载波间隔相关包括:所述第三时长与第二子载波间隔有关,所述第二子载波间隔为对应于多于一个BWP的子载波间隔中的最小子载波间隔,对应于多于一个BWP的子载波间隔包括用于传输Msg3的BWP的子载波间隔和终端设备所被配置的上行BWP的子载波间隔;其中,所述第三时长为对应所述第二子载波间隔的情况下,定时提前命令TAC所允许指示的最大时长。
- 根据权利要求8或9所述的方法,其特征在于,定时提前命令TAC所允许指示的最大时长为12bit TAC所允许指示的最大时长。
- 根据权利要求8-10中任一项所述的方法,其特征在于,用于传输Msg3的BWP的子载波间隔多于1个。
- 根据权利要求8-10中任一项所述的方法,其特征在于,所述用于传输Msg3的BWP包括终端设备被配置上行载波和补充上行载波的情况下用于传输Msg3的BWP。
- 根据权利要求8和10-12中任意一项所述的方法,其特征在于,所述根据第二子载波间隔,确定第三时长包括:根据第二子载波间隔和第二子载波间隔与第三时长的对应关系,确定第三时长;其中,第二子载波间隔与第三时长的对应关系为至少一个子载波间隔与第三时长的多个对应关系中的一个,所述至少一个子载波间隔包括所述第二子载波间隔。
- 根据权利要求9-12中任意一项所述的方法,其特征在于,所述第三时长与第二子载波间隔有关包括:所述第三时长与所述第二子载波间隔具有对应关系,所述对应关系为第三时长与至少一个子载波间隔的至少两个对应关系中的一个,所述至少一个子载波间隔包括所述第二子载波间隔。
- 根据权利要求4-7中任一项所述的方法,其特征在于,所述多于一个BWP包括上行BWP和下行BWP。
- 根据权利要求1-15中任一项所述的方法,其特征在于,所述调整后的定时提前量TA的生效时刻为一个时间提前组TAG的调整后的TA的生效时刻。
- 根据权利要求1-16中任一项所述的方法,其特征在于,还包括:在确定所述调整后的TA的生效时刻后,利用所述调整后的TA发送上行信息。
- 根据权利要求1-17中任意一项所述的方法,其特征在于,所述多于一个BWP为 终端设备所被配置的。
- 一种通信方法,其特征在于,包括:接收定时提前量TA调整命令;根据对应于多于一个载波或载波资源的子载波间隔,确定调整后的定时提前量TA的生效时刻。
- 根据权利要求19所述的方法,其特征在于,根据对应于多于一个载波或载波资源的子载波间隔,确定调整后的定时提前量TA的生效时刻包括:根据第一时长,第二时长和第三时长中的至少一项,确定调整后的TA的生效时隙,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个载波或载波资源的子载波间隔相关。
- 根据权利要求20所述的方法,其特征在于,所述第一时长为处理下行信号所需要的时长,所述第二时长为准备上行信号所需要的时长,所述第三时长为12bit定时提前命令TAC所允许指示的最大时长。
- 根据权利要求20或21所述的方法,其特征在于,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个载波或载波资源的子载波间隔相关包括:根据第一子载波间隔,确定第一时长和/或第二时长,所述第一子载波间隔为对应于多于一个载波或载波资源的子载波间隔中的最小子载波间隔;其中,所述第一时长为处理下行信号所需要的时长,所述第二时长为准备上行信号所需要的时长。
- 根据权利要求20或21所述的方法,其特征在于,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个载波或载波资源的子载波间隔相关包括:所述第一时长和/或第二时长与第一子载波间隔有关,所述第一子载波间隔为对应于多于一个载波或载波资源的子载波间隔中的最小子载波间隔;其中,所述第一时长为处理下行信号所需要的时长,所述第二时长为准备上行信号所需要的时长。
- 根据权利要求22所述的方法,其特征在于,根据第一子载波间隔,确定第一时长和/或第二时长包括:根据第一子载波间隔以及所述第一子载波间隔与第一时长的对应关系,确定第一时长,所述第一子载波间隔与第一时长的对应关系为至少一个子载波间隔与第一时长的至少两个对应关系中的一个,所述至少一个子载波间隔包括所述第一子载波间隔;和/或,根据第一子载波间隔以及所述第一子载波间隔与第二时长的对应关系,确定第二时长,其中,所述第一子载波间隔与第二时长的对应关系为至少一个子载波间隔与第二时长的至少两个对应关系中的一个,所述至少一个子载波间隔包括所述第一子载波间隔。
- 根据根据权利要求23所述的方法,其特征在于,所述第一时长和/或第二时长与所述第一子载波间隔有关包括:所述第一子载波间隔与第一时长具有对应关系,所述对应关系为至少一个子载波间隔与第一时长的至少两个对应关系中的一个,所述至少一个子载波间隔包括所述第一子载波间隔,和/或,所述第一子载波间隔与第二时长具有对应关系,所述对应关系为至少一个子载波间隔与第二时长的至少两个对应关系中的一个,所述至少一个子载波间隔包括所述第一子载波 间隔。
- 根据权利要求20-25中任一项所述的方法,其特征在于,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个载波或载波资源的子载波间隔相关包括:根据第二子载波间隔,确定第三时长;所述第二子载波间隔为对应于多于一个载波或载波资源的子载波间隔中的最小子载波间隔,对应于多于一个载波或载波资源的子载波间隔包括用于传输Msg3的载波的子载波间隔和终端设备的上行载波的子载波间隔;其中,所述第三时长为对应所述第二子载波间隔的情况下,定时提前命令TAC所允许指示的最大时长。
- 根据权利要求20-25中任一项所述的方法,其特征在于,所述第一时长,第二时长和第三时长中的至少一项与对应于多于一个载波或载波资源的子载波间隔相关包括:所述第三时长与第二子载波间隔有关,所述第二子载波间隔为对应于多于一个载波或载波资源的子载波间隔中的最小子载波间隔,对应于多于一个载波或载波资源的子载波间隔包括用于传输Msg3的载波的子载波间隔和终端设备的上行载波的子载波间隔;其中,所述第三时长为对应所述第二子载波间隔的情况下,定时提前命令TAC所允许指示的最大时长。
- 根据权利要求26或27所述的方法,其特征在于,定时提前命令TAC所允许指示的最大时长为12bit TAC所允许指示的最大时长。
- 根据权利要求26-28中任一项所述的方法,其特征在于,用于传输Msg3的载波的子载波间隔多于1个。
- 根据权利要求26-29中任一项所述的方法,其特征在于,所述用于传输Msg3的载波包括终端设备被配置上行载波和补充上行载波的情况下用于传输Msg3的载波。
- 根据权利要求26和28-30中任意一项所述的方法,其特征在于,所述根据第二子载波间隔,确定第三时长包括:根据第二子载波间隔和第二子载波间隔与第三时长的对应关系,确定第三时长;其中,第二子载波间隔与第三时长的对应关系为至少一个子载波间隔与第三时长的多个对应关系中的一个,所述至少一个子载波间隔包括所述第二子载波间隔。
- 根据权利要求27-30中任意一项所述的方法,其特征在于,所述第三时长与第二子载波间隔有关包括:所述第三时长与所述第二子载波间隔具有对应关系,所述对应关系为第三时长与至少一个子载波间隔的至少两个对应关系中的一个,所述至少一个子载波间隔包括所述第二子载波间隔。
- 根据权利要求22-25中任一项所述的方法,其特征在于,所述多于一个载波或载波资源包括上行载波和下行载波。
- 根据权利要求19-33中任一项所述的方法,其特征在于,所述调整后的定时提前量TA的生效时刻为一个时间提前组TAG的调整后的TA的生效时刻。
- 根据权利要求19-34中任一项所述的方法,其特征在于,还包括:在确定所述调整后的TA的生效时刻后,利用所述调整后的TA发送上行信息。
- 一种通信装置,其特征在于,包括:接收模块,用于接收定时提前量TA调整命令;处理模块,用于根据对应于多于一个带宽部分BWP的子载波间隔,确定调整后的定 时提前量TA的生效时刻。
- 一种通信装置,其特征在于,包括:接收模块,用于接收定时提前量TA调整命令;处理模块,用于根据对应于多于一个载波或载波资源的子载波间隔,确定调整后的定时提前量TA的生效时刻。
- 一种通信装置,其特征在于,包括:处理器,用于与存储器耦合,执行所述存储器中的指令,以实现如权利要求1至35中任一项所述的方法。
- 一种通信系统,其特征在于,包括:如权利要求36或37或38所述的通信装置。
- 如权利要求39所述的通信系统,其特征在于,还包括:网络设备,用于发送所述定时提前量TA调整命令。
- 一种通信方法,其特征在于,包括:从M个子载波间隔中确定第一子载波间隔,其中,所述M个子载波间隔是终端设备所使用的L个载波对应的子载波间隔,其中,L≥M≥2;根据所述第一子载波间隔,确定所述L个载波中的每个载波的定时提前量TA的生效时刻。
- 根据权利要求41所述的方法,其特征在于,所述根据所述第一子载波间隔,确定所述L个载波中的每个载波的定时提前量TA的生效时刻,包括:根据所述第一子载波间隔,确定第一时间间隔,所述第一时间间隔是下行信号的接收时刻与TA的生效时刻之间的时间间隔;根据所述第一时间间隔,确定所述L个载波中的每个载波的定时提前量TA的生效时刻。
- 根据权利要求42所述的方法,其特征在于,所述根据所述第一子载波间隔,确定所述第一时间间隔,包括:根据所述第一子载波间隔,确定第一时长,所述第一时长是处理下行信号所需要的时长;和/或根据所述第一子载波间隔,确定第二时长,所述第二时长是准备上行信号所需要的时长;根据所述第一时长和/或第二时长,确定第一时间间隔。
- 根据权利要求42或43所述的方法,其特征在于,所述根据所述第一子载波间隔,确定所述第一时间间隔,包括:根据第三时长确定第一时间间隔,所述第三时长是对应第二子载波间隔下,12比特或6比特的定时提前命令TAC所允许指示的最大时长;所述第二子载波间隔根据第三子载波间隔和第四子载波间隔中较小的子载波间隔;所述第三子载波间隔为终端设备的多个上行载波对应的子载波间隔中最小的子载波间隔;所述第四子载波间隔为终端传输消息3的子载波间隔。
- 根据权利要求42所述的方法,其特征在于,所述第一时间间隔包括第一时长、第二时长和第三时长中的一种或多种时长,所述根据所述第一子载波间隔,确定所述L个载波中的第一载波对应的第一时间间隔,包括:根据所述第一子载波间隔,确定第一时长,所述第一时长是处理下行信号所需要的时长;和/或根据所述第一子载波间隔,确定第二时长,所述第二时长是准备上行信号所需要的时长;和/或根据所述第一子载波间隔,确定第三时长,所述第三时长是对应第一子载波间隔下,12比特或6比特的定时提前命令TAC所允许指示的最大时长。
- 根据权利要求45所述的方法,其特征在于,当所述L个载波中至少两个载波用于随机接入过程,且用于传输消息Msg 3的载波包括至少两个子载波间隔时,所述根据所述第一子载波间隔,确定第三时长之前,所述方法还包括:根据所述至少两个子载波间隔,确定所述第一子载波间隔。
- 根据权利要求42至46中任一项所述的方法,其特征在于,所述第一时间间隔还包括第四时长,所述第四时长是所述终端设备根据小区复用模式确定的时长;和/或所述第四时长是所述终端设备根据所述终端设备或网络设备工作的频率范围确定的时长。
- 根据权利要求41所述的方法,其特征在于,所述方法还包括:确定第一映射关系,所述第一映射关系包括多种子载波间隔与多个时长之间的一一映射关系;以及所述根据所述第一子载波间隔,确定所述L个载波中的每个载波的定时提前量TA的生效时刻,包括:根据所述第一映射关系,确定与所述第一子载波间隔相对应的第一时间间隔;根据所述第一时间间隔,确定L个载波中的每个载波的定时提前量TA的生效时刻。
- 根据权利要求41至48中任一项所述的方法,其特征在于,所述第一子载波间隔是所述M个子载波间隔中最小的子载波间隔;或所述第一子载波间隔是所述M个子载波间隔中最大的子载波间隔。
- 根据权利要求41至49中任一项所述的方法,其特征在于,所述根据所述第一子载波间隔,确定所述L个载波中的每个载波的定时提前量TA的生效时刻之后,所述方法还包括:根据所述定时提前量TA发送上行信息。
- 一种通信装置,其特征在于,包括:确定单元,用于从M个子载波间隔中确定第一子载波间隔,其中,所述M个子载波间隔是终端设备所使用的L个载波对应的子载波间隔,其中,L≥M≥2;所述确定单元还用于根据所述第一子载波间隔,确定所述L个载波中的每个载波的定时提前量TA的生效时刻。
- 根据权利要求51所述的装置,其特征在于,所述确定单元还用于:根据所述第一子载波间隔,确定第一时间间隔,所述第一时间间隔是下行信号的接收时刻与TA的生效时刻之间的时间间隔;根据所述第一时间间隔,确定所述L个载波中的每个载波的定时提前量TA的生效时刻。
- 根据权利要求50所述的装置,其特征在于,所述根据所述第一子载波间隔,确定第一时间间隔,包括:根据所述第一子载波间隔,确定第一时长,所述第一时长是处理下行信号所需要的时长;和/或根据所述第一子载波间隔,确定第二时长,所述第二时长是准备上行信号所需要的时长;根据所述第一时长和/或第二时长,确定第一时间间隔。
- 根据权利要求52或53所述的装置,其特征在于,所述根据所述第一子载波间隔,确定第一时间间隔,包括:根据第三时长确定第一时间间隔,所述第三时长是对应第二子载波间隔下,12比特或6比特的定时提前命令TAC所允许指示的最大时长:所述第二子载波间隔根据第三子载波间隔和第四子载波间隔中较小的子载波间隔;所述第三子载波间隔为终端设备的对应于多个上行载波的子载波间隔中最小的子载波间隔;所述第四子载波间隔为终端传输消息3的子载波间隔。
- 根据权利要求52所述的装置,其特征在于,所述第一时间间隔包括第一时长、第二时长和第三时长中的一种或多种时长,所述确定单元还用于:根据所述第一子载波间隔,确定第一时长,所述第一时长是处理下行信号所需要的时长;和/或根据所述第一子载波间隔,确定第二时长,所述第二时长是准备上行信号所需要的时长;和/或根据所述第一子载波间隔,确定第三时长,所述第三时长是对应第一子载波间隔下,12比特或6比特的定时提前命令TAC所允许指示的最大时长。
- 根据权利要求55所述的装置,其特征在于,当所述L个载波中至少两个载波用于随机接入过程,且用于传输消息Msg 3的载波包括至少两个子载波间隔时,所述确定单元还用于:根据所述至少两个子载波间隔,确定所述第一子载波间隔。
- 根据权利要求52至56中任一项所述的装置,其特征在于,所述第一时间间隔还包括第四时长所述第四时长是所述终端设备根据小区复用模式确定的时长;和/或所述第四时长是所述终端设备根据所述终端设备或网络设备工作的频率范围确定的时长。
- 根据权利要求51所述的装置,其特征在于,所述确定单元还用于:确定第一映射关系,所述第一映射关系包括多种子载波间隔与多个时长之间的一一映射关系;以及根据所述第一映射关系,确定与所述第一子载波间隔相对应的第一时间间隔;根据所述第一时间间隔,确定L个载波中的每个载波的定时提前量TA的生效时刻。
- 根据权利要求51至58中任一项所述的装置,其特征在于,所述第一子载波间隔是所述M个子载波间隔中最小的子载波间隔;或所述第一子载波间隔是所述M个子载波间隔中最大的子载波间隔。
- 根据权利要求51至59中任一项所述的装置,其特征在于,所述装置还包括:发送单元,用于根据所述定时提前量TA发送上行信息。
- 一种计算机可读存储介质,用于存储计算机程序,其特征在于,所述计算机程序包括用于实现上述权利要求1至35或41-50中任一项所述的方法的指令。
- 一种通信装置,其特征在于,用于执行上述权利要求1至35或41-50中任一项所述的方法。
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