WO2019158099A1 - 随机接入资源配置的方法和通信设备 - Google Patents
随机接入资源配置的方法和通信设备 Download PDFInfo
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- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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- H04L5/00—Arrangements affording multiple use of the transmission path
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Definitions
- the present application relates to the field of communications, and in particular, to a method and a communication device for configuring a random access resource.
- a 5th Generation (5G) communication system such as a New Radio (NR) defines a Synchronous Signal/Physical Broadcast Channel (PBCH) block (SSB).
- PBCH Synchronous Signal/Physical Broadcast Channel
- SSB Synchronous Signal/Physical Broadcast Channel
- One SSB occupies four orthogonal frequency division multiplexing (OFDM) symbols, wherein the SSB includes a new radio-primary synchronization signal (NPSS) and a new radio-secondary synchronization signal (New radio-secondary synchronization).
- NPSS new radio-primary synchronization signal
- New radio-secondary synchronization New radio-secondary synchronization
- Signal NR-SSS
- NR-PBCH New radio-physical broadcast channel
- the terminal device To access the network, the terminal device needs to perform cell search and acquire cell system information. For example, the terminal device may obtain downlink synchronization with the cell by searching for the above SSB. After that, the terminal device needs to acquire system information of the cell, establish a connection with the cell through a random access procedure, and obtain uplink synchronization. Specifically, the terminal device may initiate random access by sending a random access preamble (preamble) on a resource of a physical random access occasion (RO) configured by the network device.
- preamble random access preamble
- RO physical random access occasion
- the configuration of the physical random access channel (PRACH) in the frequency division duplex (FDD) system below 6 GHz and the time division duplex (time) are specified in the existing protocol.
- Division duplex, TDD The PRACH configuration of the Preamble long sequence in the 6 GHz band. Since the configuration of the SSB and the remaining minimum system information (RMSI) corresponding to different frequency bands or different systems is greatly different, the parameter design in the above-mentioned configuration of the frequency band below 6 GHz cannot be directly applied to other frequency bands or The PRACH configuration in other systems may cause the number of ROs that are valid in the PRACH configuration period to be small, and reduce the random access efficiency of the terminal device.
- RMSI remaining minimum system information
- the present application provides a method and a communication device for configuring a random access resource, which can improve the random access efficiency of the terminal device.
- a method for communication includes: receiving, by a terminal device, index indication information, where the index indication information is used to indicate a first configuration index; and determining, by the terminal device, the First configuration information corresponding to the first configuration index, where the first configuration information is used to indicate a time domain resource of the at least one random access preamble opportunity RO, where the first configuration information is based on a time domain of the control channel resource set Information is determined.
- the RO resource and the downlink resource eg, SSB and/or RMSI CORESET
- the probability of collision increases the number of ROs that are valid during the PRACH configuration period, which can improve the random access efficiency of the terminal device.
- a method for communication including: a network device generating index indication information, where the index indication information is used to indicate a first configuration index; and the network device sends the index indication information to a terminal device, where The index indication information is used by the terminal device to determine first configuration information corresponding to the first configuration index according to the first configuration index, where the first configuration information is used to indicate at least one random access preamble opportunity RO
- the time domain resource, the first configuration information is determined according to time domain resources of the common signal block and/or time domain information of the control channel resource set.
- the RO resource and the downlink resource eg, SSB and/or RMSI CORESET
- the probability of collision increases the number of ROs that are valid during the PRACH configuration period, which can improve the random access efficiency of the terminal device.
- the first configuration information includes at least one of the following information:
- Second indication information for indicating at least one second time unit of the first time unit
- Third indication information indicating a number of third time units included in each of the at least one second time unit
- the random access configuration period is greater than a preset duration threshold
- time domain information of the control channel resource set includes the control channel resource a time domain offset of the set of control channels, the time domain offset of the set of control channel resources representing a starting time domain location of the control channel resource set associated with the first common signal block in the common signal block detection window And a duration between the start positions of the system frames in which the control channel resource set is located; the first indication information used to indicate the first time unit is determined according to a time domain offset of the control channel resource set.
- the first indication when the time domain offset of the control channel resource set is greater than or equal to a preset offset threshold, the first indication The sequence number corresponding to the location of the first time unit in the random access configuration period is an even number; or the time domain offset of the control channel resource set is less than the preset offset threshold The sequence number corresponding to the location of the first time unit indicated by the first indication information in the random access configuration period is an odd number.
- the embodiment of the present application determines the location of the first time unit (ie, the system frame) to which the time domain resource of the RO belongs according to the size of the time domain offset of the control channel resource set, and can avoid the conflict with the control channel resource to the maximum extent. Increase the effective number of ROs and improve the efficiency of random access.
- the second indication information used to indicate the at least one second time unit is based on a time domain location of the common signal block definite.
- the at least one second time unit indicated by the second indication information is located in the first time unit except the common signal The time domain location outside the block's optional time domain location.
- the collision with the time domain position of the common signal block can be avoided to the utmost, and the effective number of the RO is improved. Improve random access efficiency.
- the second indication information used to indicate the at least one second time unit is an optional time according to the common signal block The domain location and/or the index of the first time unit is determined.
- the at least one second time unit includes a first group of second time units and a second group of second time units, the first The second time unit of the group is located in a time domain position other than the optional time domain position of the common signal block in the first half time domain portion of the first time unit; the second group of second time units is located in the a time domain location other than an optional time domain location of the common signal block in a second half of the time unit; the at least one random access preamble when the index of the first time unit is an even number
- the time domain resource of the timing RO belongs to the first group of second time units indicated by the second indication information; or, when the index of the first time unit is an odd number, the at least one random access preamble opportunity RO
- the time domain resource belongs to the second group of second time units indicated by the second indication information.
- the preset offset threshold is one of 2, 2.5, 5, 7, and 7.5.
- the time domain information of the control channel resource set includes a time domain location of the control channel resource set in the third time unit.
- the fifth indication information used to indicate the start time domain location of the RO in the third time unit is determined according to the time domain location of the control channel resource set in the third time unit, where The initial time domain location of the RO in the third time unit is located after a time domain location of a preset one of the control channel resource sets in the third time unit; or the first indication indicated by the fifth indication information
- the starting time domain position of the RO in the three time unit is the starting time domain position of the third time unit or the preset time domain position in the third time unit.
- the initial time domain position of the RO indicates that the RO occupies the first one of the at least one fourth time unit in the third time unit
- the value of the sequence number of the fourth time unit corresponding to the start time domain position of the RO in the third time unit is one of the following three: the third time unit a time domain length of the control channel resource set; a time domain length of the control channel resource set in the third time unit; and a start of the control channel resource set in the third time unit The sum of the sequence number of the fourth time unit and the time domain length of the control channel resource set.
- the embodiment of the present application determines the location of the time domain resource of the RO according to the time domain location of the control channel resource set, and can avoid conflicts with the control channel resources to the greatest extent, improve the effective number of ROs, and improve the random access efficiency.
- the fourth indication information used to indicate the number of ROs in the third time unit is according to the RO in the third time unit The starting time domain location and the length of the time domain resource occupied by the preamble sequence are determined.
- the number of ROs in the third time unit indicated by the fourth indication information is less than or equal to a start from the RO The ratio of the time domain resource length between the time domain location to the end time domain location of the third time unit to the time domain resource length occupied by the preamble sequence.
- the first time unit is a system frame
- the second time unit is a subframe or 0.25 ms
- the third time unit is For the time slot.
- the method further includes: the terminal device sending a preamble sequence on a time domain resource of the at least one RO configured by the first configuration information.
- the RO resource and the downlink resource eg, SSB and/or RMSI CORESET
- the probability of collision increases the number of ROs that are valid during the PRACH configuration period, which can improve the random access efficiency of the terminal device.
- the method further includes:
- the terminal device does not transmit the preamble sequence on a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the terminal device receives the common signal block on a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the time domain resources of the one or more of the time domain resources of the at least one RO are located on the non-uplink resources of the semi-static uplink and downlink configuration, where the method Also includes:
- the terminal device sends a preamble sequence on a time domain resource of the at least one RO configured by the first configuration information.
- the embodiment of the present application can improve the success rate of random access by transmitting the preamble sequence when the time domain resource resource of the selected set of ROs does not match the semi-static uplink and downlink configuration.
- the time domain resource of the one or more ROs of the at least one RO time domain resource and the time domain resource of the common signal block or the control channel The time domain resource conflict of the resource set, the method further includes:
- the network device does not receive the preamble sequence on a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the network device when the network device sends the common signal block on a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set A domain resource or a time domain resource of the set of control channel resources.
- the time domain resource of the one or more of the time domain resources of the at least one RO is located on the non-uplink resource of the semi-static uplink and downlink configuration, where the method Also includes:
- the network device receives a preamble sequence sent by the terminal device on a time domain resource of the at least one RO configured by the first configuration information.
- the network device does not receive other uplink/downlink signals sent by the terminal device except the preamble sequence sent by the determined time domain resource of the group of ROs.
- a third aspect of the present invention provides a method for communication, including: receiving, by a terminal device, index indication information, where the index indication information is used to indicate a first configuration index; and determining, by the terminal device, the first Configuring a first configuration information corresponding to the index, where the first configuration information is used to indicate a time domain resource of the first group of random access preamble opportunities RO or a time domain resource of the second group of ROs, where the first group of ROs
- the time domain resource and the time domain resource of the second group of ROs are located in a first time unit in the random access configuration period, and the time domain resource of the first group of ROs or the time domain resource of the second group of ROs is according to the control Determining a time domain offset of the channel resource set and/or an index of the first time unit; the terminal device determines a time domain resource of the set of ROs, and the time domain resource of the set of ROs is the first group of ROs Time domain resources or time domain resources of the second set of ROs.
- the fourth aspect provides a method for communication, including: generating, by the network device, index indication information, where the index indication information is used to indicate a first configuration index; and the network device sends index indication information to the terminal device, where the index indication Determining, by the terminal device, the first configuration information corresponding to the first configuration index according to the first configuration index, where the first configuration information is used to indicate a time domain resource of the first group of random access preamble opportunities RO Or a time domain resource of the second group of ROs, so that the terminal device determines a time domain resource of the group of ROs, and the time domain resource of the group of ROs is a time domain resource of the first group of ROs or a second group of ROs Time domain resources.
- the time domain resource of the first group of ROs and the time domain resource of the second group of ROs are located in a first time unit in a random access configuration period, and the time domain resources of the first group of ROs or the second group of ROs
- the time domain resource is determined according to the time domain offset of the control channel resource set and/or the index of the first time unit.
- the network device may first determine the time domain resource of the common signal block and/or the time domain information of the control channel resource set, and then the network device may according to the time domain resource of the common signal block and/or the time domain of the control channel resource set.
- the information determines the time domain resource of the RO (that is, the configuration information corresponding to the time domain resource of the RO).
- the network device may determine a configuration index corresponding to the time domain resource of the RO according to the one-to-one correspondence between the pre-stored multiple configuration indexes and the multiple sets of configuration information.
- the network device configures the first configuration index to the terminal device by using index indication information.
- the terminal device may determine the first configuration information corresponding to the first configuration index from the one-to-one correspondence between the pre-stored multiple configuration indexes and the multiple configuration information according to the first configuration index, and the terminal device may be configured according to the first configuration.
- the information determines the time domain resources of the two sets of ROs, and selects one of the time domain resources of the two sets of ROs.
- the RO resource and the downlink resource eg, SSB and/or can be reduced. Or the probability of collision with the RMSI CORESET), which increases the number of ROs that are valid during the PRACH configuration period, and can improve the random access efficiency of the terminal device.
- the first configuration information includes at least one of the following information: used to indicate a first time in the random access configuration period a first indication information of the unit, configured to indicate second indication information of the at least one second time unit of the first time unit, where the at least one second time unit comprises a first group of second time units and a second group a second time unit, wherein the time domain resource of the first group of ROs belongs to the first group of second time units, and the time domain resources of the second group of ROs belong to the second group of second time units, And third indication information indicating a number of third time units included in each of the first group of second time units and the second group of second time units, for indicating the third time Fourth indication information of the number of ROs in the unit, and fifth indication information for indicating a start time domain position of the RO in the third time unit.
- the random access configuration period is greater than a preset duration threshold, and a time domain offset of the control channel resource set indicates the public The length of time between the start time domain position of the control channel resource set associated with the first common signal block in the signal block detection window and the start position of the system frame in which the control channel resource set is located;
- the first indication information used to indicate the first time unit is determined according to a time domain offset of the control channel resource set.
- the first indication when the time domain offset of the control channel resource set is greater than or equal to a preset offset threshold, the first indication The sequence number of the first time unit indicated by the information in the random access configuration period corresponds to an even number; or
- the location of the first time unit indicated by the first indication information in the random access configuration period corresponds to The serial number is odd.
- the second indication information used to indicate the at least one second time unit is based on a time domain location of the common signal block definite.
- the at least one second time unit indicated by the second indication information is located in the first time unit except the common signal The time domain location outside the block's optional time domain location.
- the second indication information used to indicate the at least one second time unit is an optional time according to the common signal block The domain location and/or the index of the first time unit is determined.
- the first group of second time units are located in a first half time domain portion of the first time unit except the common signal block Optional time domain location outside the time domain location;
- the second group of second time units is located in a time domain position of the second half time domain portion of the first time unit except for an optional time domain position of the common signal block;
- the terminal device determines a time domain resource of a group of ROs, including:
- a time domain resource of the group of ROs according to an index of the first time unit, where when the index of the first time unit is an even number, the time of determining a group of ROs by the terminal device
- the domain resource is the time domain resource of the first group of ROs; or when the index of the first time unit is an odd number, when the time domain resource of the group of ROs determined by the terminal device is the second group of ROs Domain resource.
- the preset offset threshold is one of 2, 2.5, 5, 7, and 7.5.
- the fifth indication information used to indicate a start time domain location of an RO in the third time unit is according to the The time domain location of the control channel resource set in the third time unit is determined, wherein a start time domain location of the RO in the third time unit is located in a preset one of the control channel resources in the third time unit After the time domain position of the set; or, the start time domain position of the RO in the third time unit indicated by the fifth indication information is the start time domain position of the third time unit or the third The default time domain location in the time unit.
- the initial time domain position of the RO indicates that the RO occupies the first one of the at least one fourth time unit in the third time unit
- the sequence number of the fourth time unit corresponding to the start time domain location of the RO in the third time unit is one of the following three:
- the fourth indication information used to indicate the number of ROs in the third time unit is according to the RO in the third time unit.
- the starting time domain location and the length of the time domain resource occupied by the preamble sequence are determined.
- the number of ROs in the third time unit indicated by the fourth indication information is less than or equal to a start from the RO The ratio of the time domain resource length between the time domain location to the end time domain location of the third time unit to the time domain resource length occupied by the preamble sequence.
- the first time unit is a system frame
- the second time unit is a subframe or 0.25 ms
- the third time unit is For the time slot.
- the method further includes:
- the terminal device transmits a preamble sequence in a determined time domain resource of a group of ROs.
- the method further includes:
- the terminal device does not transmit the preamble sequence in a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the terminal device receives the common signal block on a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the time domain resource of one or more of the time domain resources of the set of ROs determined by the terminal device is located in the non-uplink resource of the semi-static uplink and downlink configuration.
- the method further includes:
- the terminal device transmits a preamble sequence in a determined time domain resource of a group of ROs.
- the method further includes:
- the network device receives a preamble sequence of the time domain resource transmission of the determined set of ROs by the terminal device.
- a time domain resource of one or more ROs in a time domain resource of a group of ROs determined by the terminal device and a time domain of the common signal block when the resource or the time domain resource of the control channel resource set conflicts, the method further includes:
- the network device does not receive the preamble sequence on a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the network device when the network device sends the common signal block on a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set A domain resource or a time domain resource of the set of control channel resources.
- the time domain resources of one or more ROs in the time domain resources of the group of ROs determined by the terminal device are located in the non-upstream configuration of the semi-static uplink and downlink configuration. Resources, the method further includes:
- the network device receives a preamble sequence sent by the terminal device on a time domain resource of the group of ROs.
- the network device does not receive other uplink/downlink signals sent by the terminal device except the preamble sequence sent by the determined time domain resource of the group of ROs.
- a fifth aspect a method for communication, comprising: receiving, by a terminal device, index indication information, where the index indication information is used to indicate a first configuration index; and determining, by the terminal device, the first configuration index Time domain resources of at least one random access preamble opportunity RO corresponding to the first configuration index; determining, by the terminal device, time domain resources and common signals of one or more ROs in the time domain resources of the at least one RO When the time domain resource of the block or the time domain resource of the control channel resource set conflicts, the terminal device is not in one or more ROs that conflict with the time domain resource of the common signal block or the time domain resource of the control channel resource set.
- the time domain resource sends the preamble sequence; or the terminal device determines that the time domain resource of one or more of the time domain resources of the at least one RO is located on the non-uplink resource of the semi-static uplink and downlink configuration And the terminal device sends a preamble sequence in a time domain resource of the at least one RO.
- the sixth aspect provides a method for communication, including: generating, by the network device, index indication information, where the index indication information is used to indicate a first configuration index; and the network device sends the index indication information to a terminal device, where The index indication information is used by the terminal device to determine, according to the first configuration index, a time domain resource of the at least one random access preamble opportunity RO corresponding to the first configuration index; when the network determines the at least one RO When the time domain resource of one or more ROs in the domain resource conflicts with the time domain resource of the common signal block or the time domain resource of the control channel resource set, the network device is not in the time domain resource or the public signal block Receiving the preamble sequence on a time domain resource of one or more ROs of a time domain resource conflict of a control channel resource set; or the network device determining one or more of the time domain resources of the at least one RO When the time domain resource of the RO is located on the non-uplink resource of the semi-static uplink and downlink configuration, the network device is in the time
- the embodiment of the present application by sending a preamble sequence on a conflicting resource when there is a resource conflict, unnecessary useless work can be avoided, and random access failure occurs. Moreover, the embodiment of the present application can improve the success rate of random access by transmitting the preamble sequence when the time domain resource resource of the selected set of ROs does not match the semi-static uplink and downlink configuration.
- the seventh aspect provides a terminal device, where the terminal device includes any one of the first aspect, the third aspect, the fifth aspect, or the first aspect, the third aspect, and the fifth aspect. Individual modules or units of the method.
- the eighth aspect provides a network device, where the network device includes a method for performing the second aspect, the fourth aspect, the sixth aspect, or the second aspect, the fourth aspect, and the sixth aspect, any possible implementation manner. Individual modules or units.
- a terminal device including a transceiver, a processor, and a memory.
- the processor is configured to control a transceiver transceiver signal for storing a computer program, the processor for calling and running the computer program from the memory, such that the terminal device performs the first aspect, the third aspect, the fifth aspect or the The method of any one of the possible implementations of the third aspect, the fifth aspect.
- a network device device including a transceiver, a processor, and a memory.
- the processor is configured to control a transceiver transceiver signal for storing a computer program, the processor for calling and running the computer program from the memory, such that the terminal device performs the second aspect, the fourth aspect, the sixth aspect or the The method of any of the possible implementations of the second aspect, the fourth aspect, and the sixth aspect.
- a computer readable medium having stored thereon a computer program, the computer program being executed by a computer to implement any of the first to sixth aspects or the first to sixth aspects The method in the implementation.
- a computer program product wherein the computer program product is executed by a computer to implement the method of any one of the first aspect to the sixth aspect or the first aspect to the sixth aspect.
- a processing apparatus including a processor and an interface
- the foregoing interface may further complete the data interaction process by using a transceiver.
- the processing device in the thirteenth aspect may be a chip, and the processor may be implemented by using hardware or by software.
- the processor may be a logic circuit, an integrated circuit, or the like;
- the processor can be a general purpose processor implemented by reading software code stored in a memory, which can be integrated in the processor and can exist independently of the processor.
- FIG. 1 is a schematic diagram of a scenario of a communication system applicable to an embodiment of the present application.
- FIG. 2 is a schematic diagram of SSB and RMSI CORESET multiplexing patterns in accordance with one embodiment of the present application.
- FIG. 3 is a schematic flow chart of a method of communication according to an embodiment of the present application.
- FIG. 4 is a schematic diagram showing the distribution of SSB and RMSI CORESET resources according to an embodiment of the present application.
- FIG. 5 is a schematic diagram of SSB and RMSI CORESET resource distribution according to an embodiment of the present application.
- FIG. 6 is a schematic diagram of resource configuration in a time slot according to an embodiment of the present application.
- FIG. 7 is a schematic flowchart of a method of communication according to another embodiment of the present application.
- FIG. 8 is a schematic flowchart of a method of communication according to another embodiment of the present application.
- FIG. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application.
- FIG. 10 is a schematic block diagram of a network device in accordance with an embodiment of the present application.
- FIG. 11 is a schematic block diagram of a terminal device according to another embodiment of the present application.
- FIG. 12 is a schematic block diagram of a network device according to another embodiment of the present application.
- the embodiments of the present application are applicable to various communication systems, and therefore, the following description is not limited to a specific communication system.
- the next generation communication system that is, a fifth generation (5th generation, 5G) communication system, for example, a new radio (NR) system.
- 5G fifth generation
- NR new radio
- the network device may be a network side device in a future 5G network, for example, a transmission point (TRP or TP) in the NR system, a base station (gNB) in the NR system, and a radio frequency unit in the NR system, such as a far A radio frequency unit, one or a group of base stations (including a plurality of antenna panels), and the like in a 5G system.
- TRP or TP transmission point
- gNB base station
- a radio frequency unit in the NR system, such as a far A radio frequency unit, one or a group of base stations (including a plurality of antenna panels), and the like in a 5G system.
- Different network devices may be located in the same cell or in different cells, and are not limited herein.
- the gNB may include a centralized unit (CU) and a distributed unit (DU).
- 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 may also be referred to as a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, and a terminal.
- UE user equipment
- the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication.
- SIP session initiation protocol
- WLL wireless local loop
- PDA personal digital assistant
- Functional handheld devices computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, drone devices, and terminal devices in future 5G networks or public land mobile networks in the future (public land mobile network)
- the terminal device and the like in the PLMN are not limited in this embodiment of the present application.
- the terminal device may also be a wearable device.
- a wearable device which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes.
- a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction.
- Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.
- the embodiments of the present application can be applied to any of the foregoing communication systems.
- the embodiment of the present application can be applied to an LTE system and a subsequent evolved system, such as 5G, or other wireless communication systems that use various radio access technologies, such as using code points.
- a wireless network using Massive Multiple-Input Multiple-Output (Massive MIMO) technology a wireless network using distributed antenna technology, and the like.
- Massive Multiple-Input Multiple-Output Massive Multiple-Input Multiple-Output
- FIG. 1 is a schematic diagram of a scenario of a communication system applicable to an embodiment of the present application.
- the communication system 100 includes a network side device 102, and a plurality of terminal devices (for example, a terminal device 116 and a terminal device 122).
- the network device 102 can provide communication services for the terminal device and access the core network, and the terminal device Communication with the network is performed by searching for a synchronization signal, a broadcast signal, or the like transmitted by the network device to access the network. For example, perform uplink/downlink transmission.
- the network side device 102 may include multiple antenna groups. Each antenna group may include multiple antennas, for example, one antenna group may include antennas 104 and 106, another antenna group may include antennas 106 and 110, and an additional group may include antennas 112 and 114. Two antennas are shown in Figure 1 for each antenna group, although more or fewer antennas may be used for each group.
- Network side device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include various components associated with signal transmission and reception (eg, processors, modulators, multiplexers, Demodulator, demultiplexer or antenna, etc.).
- the network side device 102 can communicate with a plurality of terminal devices (e.g., the terminal device 116 and the terminal device 122). However, it will be appreciated that the network side device 102 can communicate with any number of terminal devices similar to the terminal device 116 or 122.
- terminal device 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to terminal device 116 over forward link 116 and receive information from terminal device 116 over reverse link 120.
- terminal device 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.
- the forward link 116 can utilize a different frequency band than that used by the reverse link 120, and the forward link 124 can utilize the reverse link. 126 different frequency bands used.
- FDD frequency division duplex
- the forward link 116 and the reverse link 120 can use a common frequency band, a forward link 124, and a reverse link.
- Link 126 can use a common frequency band.
- Each set of antennas and/or areas designed for communication is referred to as a sector of the network side device 102.
- the antenna group can be designed to communicate with terminal devices in sectors of the network side device 102 coverage area.
- the transmit antenna of the network side device 102 can utilize beamforming to improve the signal to noise ratio of the forward links 116 and 124.
- the neighboring cell is compared with the manner in which the network side device transmits a signal to all of its terminal devices through a single antenna. Mobile devices in the middle are subject to less interference.
- the network side device 102, the terminal device 116, or the terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device.
- the wireless communication transmitting device can encode the data for transmission.
- the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device.
- Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.
- the communication system 100 may be a public land mobile network PLMN network or a device to device (D2D) network or a machine to machine (M2M) network or other network, and FIG. 1 is merely an example for convenience of understanding.
- PLMN public land mobile network
- D2D device to device
- M2M machine to machine
- FIG. 1 is merely an example for convenience of understanding.
- a simplified schematic diagram of the network may also include other network devices, which are not shown in FIG.
- the terminal device when the terminal device needs to access the network (for example, after the terminal device is powered on, or the terminal device needs to be reconnected after the connection with the network device is disconnected), the terminal device can first complete the downlink synchronization by searching the SSB, and then acquire the system.
- the message may be followed by the terminal device initiating a random access procedure by establishing a random access preamble to establish a connection with the cell and obtain uplink synchronization.
- the resource occupied by the preamble sequence sent by the terminal device belongs to a resource of a random access opportunity (RO) configured by the network device.
- RO random access opportunity
- the embodiment of the present application provides a communication method, which can reduce the probability of collision between RO resources and downlink resources (eg, SSB and/or RMSI CORESET), improve the number of ROs valid in the PRACH configuration period, and improve the terminal.
- Equipment random access efficiency e.g., SSB and/or RMSI CORESET
- the RO resources configured in the embodiment of the present application can avoid the SSB and/or the RMSI CORESET resources as much as possible, and the embodiment of the present application can reduce the probability of resource collision, and can increase the number of ROs that are valid in the RACH configuration period. Improve the random access efficiency of terminal equipment.
- one SSB occupies four consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols.
- the SSB detection window is a time window defined in NR with a duration of 5 ms. In the 5 ms SSB detection window, up to L SSBs can be transmitted. For different frequency bands, the value of L is as follows:
- the SSB supports 15 kHz, 30 kHz, 120 kHz and 240 kHz subcarrier spacing.
- the mapping pattern of the SSBs in the time domain configuration is different in an SSB detection window.
- each mapping pattern refer to the definitions in the existing standards. To avoid repetition, details are not described here.
- the configuration patterns of the SSB and RMSI CORESET/PDSCH shown in FIG. 2 include three types, namely, patterns 1 to 3.
- Pattern 1 is SSB and RMSI CORESET are at different times, and the transmission bandwidth of the SSB partially overlaps with the initial access downlink bandwidth of the RMSI CORESET, that is, the SSB and the RMSI CORESET are time-divisionally transmitted.
- Pattern 2 is SSB and RMSI CORESET are at different moments, and there is no overlap between the transmission bandwidth of the SSB and the initial access downstream bandwidth portion including the RMSI CORESET, that is, the SSB and the RMSI CORESET are frequency-divisionally transmitted.
- the pattern 3 is that the SSB and the RMSI CORESET are at the same time, and the transmission bandwidth of the SSB does not overlap with the initial access downlink bandwidth portion including the RMSI CORESET.
- the SSB and the RMSI CORESET are also frequency-division transmission.
- the subcarrier spacing corresponding to SSB and RMSI CORESRET is 15 kHz or 30 kHz.
- the subcarrier spacing corresponding to the SSB is 120 kHz or 240 kHz, and the subcarrier spacing corresponding to the RMSI CORESRET may be 60 kHz or 120 kHz.
- the embodiment of the present application mainly describes a scheme for how to configure the RO resource for the pattern 1, that is, under the TDD system.
- the schemes of the pattern 2 and the pattern 3 reference may be made to the scheme for the pattern 1, which is not described in detail in the embodiment of the present application.
- the embodiment of the present application needs to configure the RO resource time domain location for the resource distribution of the SSB and the RMSI CORESET to avoid the resources of the SSB and the RMSI CORESET, and improve the terminal equipment in the RO.
- the success rate of sending the preamble on the resource is not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to avoid the resources of the SSB and the RMSI CORESET multiplexing patterns.
- the preamble sequence in NR is described below.
- the first type 4 long sequences, the sequence length is 839, and the sequence format is 0 ⁇ 3;
- the second category, 9 short sequences, sequence length 139, the sequence format includes A1, A2, A3, B1, B2, B3, B4, C0, C2.
- time domain resource sizes occupied by the preamble sequences of different types and different formats may be different.
- specific definitions of each sequence refer to the description in the existing standards, and details are not described herein again.
- NR supports multiple subcarrier spacing, flexible TDD semi-static uplink and downlink configuration, flexible and complicated SSB/RMSI time domain configuration, and multiple random access preamble formats. Therefore, a new design of the PRACH configuration is required.
- FIG. 3 is a schematic flow diagram of a method of communication in accordance with one embodiment of the present invention.
- the method as shown in FIG. 3 can be applied to any of the above communication systems.
- Figure 3 depicts a method of communication of an embodiment of the present application from a system perspective.
- the method 300 shown in FIG. 3 includes:
- the network device sends index indication information, where the index indication information is used to indicate the first configuration index.
- the network device first generates index indication information, and then the network device sends the index indication information to the terminal device. Accordingly, the terminal device receives the index indication information.
- the network device may send the index indication information by using the RMSI, and the embodiment of the present application is not limited thereto.
- the size of the index indication information may be 8 bits, and the first configuration index indicated by the index indication information may be one of multiple (for example, less than or equal to 256) configuration indexes.
- the configuration index may be a PRACH Configuration Index.
- the size of the index indication information may correspond to the multiple configuration indexes.
- the size of the index indication information may be n bits.
- the embodiment of the present application is not limited thereto.
- the network device may further send the subcarrier spacing indication information to the terminal device, where the size of the subcarrier spacing indication information may be 1 bit, where the subcarrier spacing indication information is used to indicate a subcarrier spacing of the PRACH message 1 (preamble) .
- the subcarrier spacing of the PRACH message 1 may be 15 kHz or 30 kHz; for the frequency band above 6 GHz, the subcarrier spacing of the PRACH message 1 may be 60 kHz or 120 kHz.
- the network device may combine the index indication information and the sub-carrier spacing indication information to be sent together through one signaling, or may be separately sent.
- the embodiment of the present application is not limited thereto.
- the terminal device determines, according to the first configuration index, the first configuration information corresponding to the first configuration index, where the first configuration information is used to indicate the time domain resource of the at least one random access preamble opportunity RO, where the first configuration information is It is determined according to time domain resources of the common signal block and/or time domain information of the control channel resource set.
- the terminal device may determine the time domain resource of the at least one RO according to the first configuration index.
- time domain information of the control channel resource set in the embodiment of the present application may include a time domain offset of the control channel resource set or a time domain location of the control channel resource set, and the embodiment is not limited thereto.
- the terminal device may determine the first configuration information corresponding to the first configuration index according to the one-to-one correspondence between the multiple configuration indexes and the multiple configuration information, where the first configuration index is the After determining the first configuration information, the terminal device may determine, according to the configuration information, a time domain resource of the at least one random access preamble opportunity RO.
- both the terminal device and the network device know in advance a one-to-one correspondence between the multiple configuration indexes and the multiple sets of configuration information.
- both the terminal device and the network device pre-store a one-to-one correspondence between the plurality of configuration indexes and the plurality of sets of configuration information.
- the network device may first determine the time domain resource of the common signal block and/or the time domain information of the control channel resource set, and then the network device may according to the time domain resource of the common signal block and/or the time domain of the control channel resource set.
- the information determines the time domain resource of the RO (that is, the configuration information corresponding to the time domain resource of the RO).
- the network device may determine a configuration index corresponding to the time domain resource of the RO according to the one-to-one correspondence between the pre-stored multiple configuration indexes and the multiple sets of configuration information.
- the network device configures the first configuration index to the terminal device by using index indication information.
- the terminal device may determine the first configuration information corresponding to the first configuration index from the one-to-one correspondence between the pre-stored multiple configuration indexes and the multiple configuration information according to the first configuration index, and the terminal device may be configured according to the first configuration.
- the information determines a time domain resource of the at least one RO.
- the embodiment of the present application determines the time domain resource of the at least one RO according to the time domain resource of the common signal block and/or the time domain information of the control channel resource set. Therefore, the RO resource configured in the embodiment of the present application can be avoided as much as possible.
- the SSB and/or the RMSI CORESET resource reduces the probability of collision between the RO resource and the downlink resource (for example, SSB and/or RMSI CORESET), improves the number of ROs valid in the PRACH configuration period, and improves the random access efficiency of the terminal device.
- the common signal block in the embodiment of the present application may be an SS/PBCH block
- the control channel resource (set) may be an RMSI CORESET, an OSI CORESET, a control channel resource of a paging channel, or a control channel of a random access response.
- the resource and the like are described below by taking the control channel resource as the RMSI CORESET as an example, but the embodiment of the present application is not limited thereto.
- the RMSI CORESET may also be referred to as a CORESET of Type 0-PDCCH (the control resource set of the Type 0-PDCCH common search space), where the configuration information of the CORESET of Type 0-PDCCH is indicated in the MIB and may pass through the MIB.
- the indication information pdcch-ConfigSIB1 indicates that the upper 4 bits and the lower 4 bits of the indication information jointly indicate the time-frequency resource location of the CORESET of Type 0-PDCCH (eg, consecutive RBs and consecutive symbols).
- Type 0-PDCCH can be used for the transmission of SIB1 (also referred to as RMSI) scheduling information.
- the following relationship may exist between the configuration index and the configuration information:
- Configuration index Configuration information 0 Configuration information 0 1 Configuration information 1 2 Configuration information 2 ... ...
- the terminal device determines the configuration index
- the device can query the configuration information corresponding to the configuration index, and then determine the time domain resource of the RO.
- Second indication information for indicating at least one second time unit of the first time unit
- Third indication information indicating a number of third time units included in each of the at least one second time unit
- the first time unit is a system frame
- the second time unit is a subframe or 0.25 ms
- the third time unit is a time slot.
- the initial time domain position of the RO indicates that the RO occupies the first fourth time unit in the at least one fourth time unit of the third time unit in the third time unit.
- first fourth time unit described above may also be the first fourth time unit occupied by the first RO of at least one of the third time units.
- the fourth time unit may be an OFDM symbol.
- slots involved in the present invention may also be TTIs and/or time units and/or subframes and/or mini-slots, etc., and embodiments of the present application are not limited thereto.
- the terminal device determines, according to the first indication information, a sequence number of the first time unit in the configuration period (or a sequence number corresponding to the location of the first time unit in the configuration period), and determines the first time unit according to the second indication information ( That is, the second time unit time domain position or time domain number in the first time unit indicated by the first indication information, and determining the third time unit number in the second time unit according to the third indication information, and finally according to the fourth
- the indication information and the fifth indication information determine a time domain resource of the RO in each third time unit, it being understood that the time domain resource of the RO in the third time unit may include a start of the RO in the third time unit The number of four time units (such as symbols) and the number of ROs.
- the terminal device determines, according to the first indication information, a sequence number of the first time unit (system frame) where the time domain resource of the at least one RO in the configuration period is located in the configuration period, and determines the system frame according to the second indication information.
- Subframe (1ms) sequence number (which may also be referred to as the index of the slot corresponding to the 15KHz subcarrier in the current system frame) or a few 0.25ms (may also be referred to as the index of the slot corresponding to the 60KHz subcarrier in the current system frame)
- the number of slots in the subframe or within 0.25 ms is determined, and the start symbol of each slot in the slot and the number of ROs in each slot are determined.
- the time domain resource of at least one RO includes resources in a plurality of time slots, that is, time domain resources of consecutive multiple ROs starting from the start symbol in each of the plurality of time slots.
- configuration period is equivalent to “PRACH period”
- symbol is equivalent to “OFDM symbol”.
- the one-to-one correspondence between the multiple configuration indexes and the multiple sets of configuration information in the embodiment of the present application may be in the form of a table, for example, may be a PRACH configuration table.
- the one-to-one correspondence between the multiple configuration indexes and the multiple sets of configuration information may also be a set of symbols or a series of bit data, and the embodiment of the present application is not limited thereto.
- the PRACH configuration table may be a preamble short sequence configuration table of TDD 6 GHz or less or a preamble short sequence configuration table of TDD 6 GHz or higher.
- Table 2 and Table 3 correspond to each other.
- Table 2 and Table 3 are preamble short-sequence PRACH configuration tables below 6 GHz.
- Tables 2 and 3 respectively correspond to different time-domain resources for configuring RO. For details, refer to the following description. .
- the preamble short sequence PRACH configuration table of TDD 6 GHz or higher is described in detail in conjunction with Table 4 and Table 5.
- Table 4 and Table 5 correspond to each other.
- Table 4 and Table 5 are preamble short-sequence PRACH configuration tables of 6 GHz or higher.
- Tables 4 and 5 respectively correspond to different time-domain resources for configuring RO. For details, refer to the following description. .
- the configuration index in the embodiment of the present application may be a PRACH Configuration Index
- the first indication information may be a sequence number of the RACH system frame in the configuration period (in the corresponding table).
- the y for example, the configuration period is 4, and the first indication information, that is, y, may be 0, 1, 2, or 3).
- the first indication information may be a system frame number (SFN) and a configuration period of the RACH system.
- the second indication information may be a subframe number in the first time unit indicated by the first indication information or an index of 0.25 ms in the system frame
- the third indication The information may be the number of PRACH slots included in each subframe or 0.25 ms
- the fourth indication information may be the number of ROs in the PRACH slot (Number of ROs within a RACH slot)
- the fifth indication information It may be the sequence number of the starting symbol in the PRACH slot.
- configuration information corresponding to the configuration index of Tables 2 to 5 may further include a format of a preamble, and the embodiment of the present application is not limited thereto.
- the PRACH configuration sequence number may be selected from 0 to 255; the random access preamble short sequence format may be A1, A2, A3, B1, B4, A1/B1, A2/B2, A3/B3, C0, C2.
- the value of the configuration period is ⁇ 1, 2, 4, 8, 16 ⁇
- the configuration period corresponding to the configuration period of 1, 2, 4, 8, and 16 is 10ms, 20ms, 40ms, 80ms, and 160ms.
- Number of PRACH slots refers to the number of PRACH subframes included in the 1ms duration granularity for the frequency bands below 6 GHz.
- the number of PRACH subframes included in the granularity of 0.25 ms duration the number of PRACH slots may be 1 or 2.
- the pre-stored PRACH configuration table of the network device and the terminal device in the embodiment of the present application is determined based on time domain resources of the common signal block and/or time domain information of the control channel resource set. Therefore, the following first describes the determination principle of the configuration information corresponding to Table 2 and Table 3 in combination with Figure 4 (SSB and RMSI CORESET possible time domain distribution diagram), combined with Figure 5 (Sine and above RMSI CORESET possible time domain distribution) Schematic diagram) Describes the principle of determining the configuration information corresponding to Tables 4 and 5.
- Figure 4 is a schematic diagram of possible time domain distributions of SSBs below 6 GHz and RMSI CORESET in two system frames.
- Figure 5 is a schematic diagram of the possible time domain distribution of SSB and RMSI CORESET in 6 system frames.
- the SSB and the RMSI CORESET with subcarrier spacing of 60 kHz and 120 kHz are optionally time domain position distributions within two system frames (20 ms). It can be seen that if the RMSI CORESET time domain offset is small, the RMSI CORESET optional time domain position distribution in the second half of the odd system frame is small.
- the PRACH configuration table can be designed according to the RMSI CORESET time domain offset, and the random access system frame is selected, for example, if the RMSI CORESET time domain offset is Small, for example, less than 5ms, select the system frame whose system frame index is odd. If the RMSI CORESET time domain offset is large, for example, greater than 5ms, select the system frame whose system frame index is even, and in these system frames. Avoid RO resources of SSB and RMSI CORESET.
- Tables 2 through 5 in the examples of the present application may be determined according to the principles described below.
- Tables 2 to 5 may also be determined by other principles, and embodiments of the present application are not limited thereto.
- Tables 2 to 5 may also be determined according to the principles described below, that is, Tables 2 to 5 may exist independently, and embodiments of the present application are not limited thereto.
- Tables 2 to 5 are merely exemplary, and Tables 2 to 5 are only a plurality of configuration indexes and multiple configuration information pre-stored by the terminal device and the network device in the embodiment of the present application. An example of a one-to-one correspondence.
- the examples of Tables 2 to 5 are merely intended to assist those skilled in the art in understanding the embodiments of the present invention, and are not intended to limit the embodiments of the present invention to the specific numerical values or specific examples illustrated. It will be obvious to those skilled in the art that various modifications and changes can be made in the form of the present invention in the scope of the embodiments of the present invention.
- each of Tables 2 to 5 includes a plurality of configuration indexes, and configuration information corresponding to the plurality of configuration indexes.
- each configuration index in Table 2 to Table 5 and its corresponding configuration information may be used separately, that is, each of Tables 2 to 5 may be split into a plurality of small tables, and the embodiment of the present application is not limited thereto. .
- the order of the configuration indexes in Tables 2 to 5 and their corresponding configuration information is not limited.
- the position of each group configuration index and the corresponding configuration information in Table 2 to Table 5 may be adjusted or arbitrarily disordered.
- the embodiment of the present application is not limited thereto.
- the number of configuration indexes in Tables 2 to 5 may start from any number, for example, may start from 0 (as shown in Table 4 and Table 5), or may not start from 0, for example, from 71. Start (as shown in Table 2 and Table 3), and the number of configuration indexes can be sorted from small to large, or sorted in any way.
- the embodiment of the present application is not limited to this, as long as the correspondence between the configuration index and the configuration information indicated by the network device and the terminal device is consistent.
- the ratio of the format corresponding to the configuration index in the foregoing Tables 2 to 5 is a form represented by a single letter (for example, A1, A2, A3, B1, or B4, etc.), which is higher than the configuration index.
- the format is a ratio of two letter combinations in the form of "x/y" (for example, A1/B1, A2/B2 or A3/B3, etc.).
- the configured time domain resources of the RO can be the same.
- time domain resources of the RO configured in one of the above formats in Tables 2 to 5 can also be used to configure the time domain resources of the ROs of other formats, that is, for different sequence formats, the time of the configured RO
- the domain resources may be the same, and the embodiment of the present application is not limited thereto.
- the random access configuration period is greater than a preset duration threshold
- the time domain information of the control channel resource set includes a time domain offset of the control channel resource set, where the control channel is The time domain offset of the resource set indicates the starting time domain location of the control channel resource set associated with the first common signal block in the common signal block detection window and the starting position of the system frame in which the control channel resource set is located The length of time;
- the first indication information used to indicate the first time unit is determined according to a time domain offset of the control channel resource set.
- the first time unit indicated by the first indication information is in the The sequence number corresponding to the location in the random access configuration period is an even number; or, when the time domain offset of the control channel resource set is less than the preset offset threshold, the first indication information indicates the The sequence number corresponding to the location of the first time unit in the random access configuration period is an odd number.
- the first time unit indicated by the first indication information corresponds to an odd number in the random access configuration period.
- the sequence number corresponding to the location of the first time unit indicated by the first indication information in the random access configuration period Or an even number; or, when the time domain offset of the control channel resource set is less than or equal to the preset offset threshold, the first time unit indicated by the first indication information is in the random connection
- the sequence number corresponding to the position in the configuration cycle is an odd number.
- the offset in this document may be a specific time size, or may be a parameter indicating the size of the time, and the corresponding offset threshold may be a specific offset size, or may be a size indicating the offset. Parameters, the embodiments of the present application are not limited thereto.
- the embodiment of the present application determines the location of the first time unit (ie, the system frame) to which the time domain resource of the RO belongs according to the size of the time domain offset of the control channel resource set, and can avoid the conflict with the control channel resource to the maximum extent. Increase the effective number of ROs and improve the efficiency of random access.
- the preset threshold may be one of 2, 2.5, 5, 7, and 7.5, and the unit of the preset threshold may be ms.
- the terminal device may obtain the sequence numbers of the two system frames in the configuration period indicated by the first indication information according to the first configuration index, and the terminal device may determine, according to the RMSI CORESET time domain offset O, that the RO resources belong to the two systems.
- the system frame corresponding to a system frame number in the frame sequence.
- the first indication information may be 0 (ie, the SFN is even), corresponding to the 0th system frame in the configuration period.
- the system frame number indicated by the first indication information may be 1 (ie, the SFN is an even number), corresponding to the first system frame in the configuration period.
- the first time unit indicated by the first indication information is the one system frame.
- the first indication information used to indicate the first time unit is determined according to a time domain location of the control channel resource set.
- the system frame indicated by the first indication information can be a system frame that avoids the control channel resource set.
- the second indication information used to indicate the at least one second time unit is determined according to a time domain location of the common signal block.
- the at least one second time unit indicated by the second indication information is located in a time domain other than an optional time domain position of the common signal block in the first time unit. position.
- the indication information of the second time unit may be a subframe number in the fourth column of the last table in Table 2 and Table 3, or is the system in the fourth example of the last in Table 4 and Table 5.
- the intra-subcarrier spacing is a sequence number (0.25 ms) corresponding to 60 KHz.
- the subframe number other than the optional SSB time domain location of the system in which the RO is located includes ⁇ 2, 3, 4, 7, 8, 9 ⁇ ;
- the subframe number other than the SSB selectable time domain location of the system in which the RO is located includes ⁇ 1, 2, 3, 4, 6, 7, 8, 9 ⁇ .
- the subframe number other than the SSB selectable time domain position of the system in which the RO is located includes ⁇ 4, 9 ⁇ ; when the SSB subcarrier spacing is 30 kHz,
- the subframe number other than the SSB optional time domain position in the system frame in which the RO is located includes ⁇ 2, 3, 4, 7, 8, 9 ⁇ .
- the corresponding subframe number is 9.
- the corresponding subframe number is 3, 4, 8, and 9.
- the SSB of the system in which the RO is located may select a time slot other than the time domain position (the subcarrier spacing is 60 kHz corresponding to the time slot, that is, The 0.25ms) sequence number includes ⁇ 4,9,14,19,24,29,34,39 ⁇ ; when the SSB subcarrier spacing is 240 kHz, the SSB in the system frame where the RO is located may select a time slot other than the time domain position. (The subcarrier spacing is 60 kHz corresponding to the time slot, ie 0.25 ms) The sequence number includes ⁇ 4, 9 to 19, 24, 29 to 39 ⁇ .
- the sub-carrier spacing in the system frame is 60KHz
- the corresponding time slots are 4, 9, 11, 13, 15, 17, 19, 24, 29, 31. 33, 35, 37, 39.
- the second indication information used to indicate the at least one second time unit is based on an optional time domain location of the common signal block, and/or the first time
- the index of the unit for example, SFN
- the at least one second time unit includes a first group of second time units and a second group of second time units
- the first set of second time units are located in a time domain position of the first half time domain portion of the first time unit except for an optional time domain position of the common signal block;
- the second set of second time units are located in a time domain position of the second half of the first time unit other than the selectable time domain position of the common signal block;
- the time domain resource of the at least one random access preamble RO belongs to the first group of second time units indicated by the second indication information
- the time domain resource of the at least one random access preamble opportunity RO belongs to the second group second time unit indicated by the second indication information.
- the terminal device may determine, according to the first configuration index, two sets of second time units indicated by the first indication information, and the terminal device may determine, according to the parity of the index of the first time unit, that the RO resource belongs to the two groups of second time units.
- the time slot in which the RO is located (the time slot in which the subcarrier spacing is 60 kHz, that is, 0.25 ms) is determined by the RMSI CORESET time domain offset O and the slot number outside the SSB selectable time domain position.
- the slot number in which the RO is located may include a slot number other than the SSB selectable time domain position in the first half of a system frame (even number system frame).
- the slot number in which the RO is located may include a slot number other than the SSB selectable time domain position in the second half of a system frame (odd number).
- the preset threshold may be any one of 2, 2.5, 5, 7, and 7.5, and the embodiment of the present application is not limited thereto.
- the SSB in the system frame where the RO is located may select the slot number other than the time domain position.
- the slot number corresponding to the subcarrier spacing of 60 KHz includes ⁇ 4, 9, 14, 19 ⁇ ;
- the SSB of the system in which the RO is located may select a time slot other than the time domain location.
- the sequence number (that is, the slot number corresponding to the subcarrier spacing of 60 KHz) includes ⁇ 4, 9 to 19 ⁇ .
- the SSB of the system in which the RO is located may select a time slot number other than the time domain position (ie, when the subcarrier spacing is 60 KHz)
- the slot number includes: ⁇ 24, 29, 34, 39 ⁇ ; for the 240 kHz subcarrier spacing SSB, the SSB in the system frame in which the RO is located may select a slot number other than the time domain position (ie, the subcarrier spacing is 60 KHz).
- the slot number) includes ⁇ 24, 29 to 39 ⁇ .
- the corresponding system frame number is 0, and the time slot of the system corresponding to the time domain resource of the RO is 60KHz.
- the corresponding slot number is Case A (ie, The system frame whose index number is even): 9, Case B (that is, the system frame whose index number is odd): 39. Since the system frame number is 0, that is, the index number of the system frame is an even number, the case A is satisfied. Therefore, when the configuration index is 0, the resources of the RO are located in the time slot of the slot number corresponding to the subcarrier spacing of 60 kHz in the system frame.
- the intra-frame sub-carrier spacing corresponding to the time domain resource of the RO is 60 kHz.
- the corresponding slot number is Case A (ie, the system frame with the index number is even): 4, 9, Case B ( That is, the system frame whose index number is odd): 29, 39.
- Case A ie, the system frame with the index number is even
- Case B That is, the system frame whose index number is odd
- the configuration index is 16
- the system frame number is determined to be 1
- the resource of the RO is located in the slot of the slot number corresponding to the slot number corresponding to 60KHz in the system frame.
- the corresponding index number is Odd system frame
- the foregoing parity determining second time unit based on the index of the first time unit may be expressed as a time domain offset based on the control channel resource set. The quantity determines the second time unit.
- the second indication information used to indicate the at least one second time unit is an optional time domain location according to the SSB, and the control The time domain offset of the channel resource set is determined.
- the at least one second time unit includes a first group of second time units and a second group of second time units
- the first group of second time units includes a time unit other than a time domain position of the SSB in a first half time domain portion of the first time unit having an even index;
- the second group of second time units includes a time unit other than a time domain position of the SSB in a second half time domain portion of the first time unit having an odd index;
- the time domain resource of the at least one random access preamble RO belongs to the first indicated by the second indication information a set of second time units;
- the time domain resource of the at least one random access preamble RO belongs to the first indicated by the second indication information Two sets of second time units.
- the foregoing case A may be modified to be that the control channel resource set offset is greater than or equal to a preset threshold.
- the above case B can be modified to control the channel resource set offset to be less than a preset threshold.
- the terminal device may determine, according to the first configuration index, two sets of second time units that are instructed by the first indication information, and the terminal device may determine, according to the size of the control channel resource set offset, that the RO resource belongs to the two groups of the second time.
- a set of second time units in a cell may be determined, according to the first configuration index, two sets of second time units that are instructed by the first indication information, and the terminal device may determine, according to the size of the control channel resource set offset, that the RO resource belongs to the two groups of the second time.
- the sequence number of the slot corresponding to the system intraframe resource corresponding to the time domain resource of the RO is 60 kHz.
- the sequence number of the time slot is Case A (the control channel resource set offset is greater than or Equal to the preset threshold): 4, 9, Case B (control channel resource set offset is less than the preset threshold): 29, 39. Therefore, when the configuration index is 16, when the control channel resource set offset is greater than or equal to the preset threshold, it is determined that the system frame number in the configuration period is 0, and the situation A is satisfied at this time, and the resource of the RO is located in the system frame subcarrier spacing.
- the slot number corresponding to 60KHz is in the slot of 4, 9.
- the configuration index is 16
- the control channel resource set offset is less than the preset threshold
- it is determined that the system frame number in the configuration period is 1, and the situation B is satisfied at this time, and the resource of the RO is located in the system frame, and the subcarrier spacing is 60 kHz.
- the corresponding slot number is in the slot of 29, 39.
- the time domain information of the control channel resource set includes a time domain location of the control channel resource set in the third time unit, and is used to indicate that in the third time unit.
- the fifth indication information of the start time domain location of the RO is determined according to a time domain location of the control channel resource set in the third time unit, wherein a start of the RO in the third time unit The time domain location is located after the time domain location of a preset control channel resource set in the third time unit.
- the preset one control channel resource set may be the last control channel resource set, the first control channel resource set or the i-th control channel resource set in the third time unit, where i is less than or equal to z.
- the integer, z represents the number of control channel resource sets in the third time unit, and the embodiment of the present application is not limited thereto.
- a start time domain position of the RO in the third time unit indicated by the fifth indication information is a start time domain position of the third time unit or the The preset time domain location in the third time unit.
- the initial time domain position of the RO indicates that the RO occupies the first fourth time unit in the at least one fourth time unit of the third time unit in the third time unit.
- the position in the middle in other words, the fifth indication information is the serial number corresponding to the position. It should be understood that the fourth time unit may be an OFDM symbol.
- the RO in the third time unit In the case where the start time domain position of the RO in the third time unit is located after the time domain position of the last one of the control channel resource sets in the third time unit, the RO in the third time unit.
- the value of the sequence number of the fourth time unit corresponding to the start time domain position is one of the following three:
- the time domain length of the control channel resource set is 1 and the sequence number of the first fourth time unit of the control channel resource set in the third time unit (which may also be referred to as a control channel resource set)
- the symbol offset is k.
- the RO occupies the position of the first fourth time unit in the at least one fourth time unit of the third time unit in the third time unit, which may be l, 2l or k+l.
- the RO occupies a time domain length between the first fourth time unit of the at least one fourth time unit and the first fourth time unit of the third time unit. , 2l or k+l.
- the start time domain position of the RO in the third time unit indicated by the fifth indication information may be the start time domain position of the third time unit or the third time unit The default time domain location.
- the start symbol position of the RO in the third time unit indicated by the fifth indication information is 0. It should be understood that the initial indication symbol position indicated by the fifth indication information in Table 2 and Table 4 is 0, but the embodiment of the present application is not limited thereto, for example, the start of the fifth indication information indication in Table 2 and Table 4.
- the symbol position may be replaced by 1, 2, 3, 4, 5, 6, or 7, etc., and may be replaced by 6 or 7. The embodiment of the present application is not limited thereto.
- the selected second time unit can avoid the conflict with the SSB, but it is difficult to exclude the control channel.
- Conflict of resource sets Therefore, it is necessary to determine the starting symbol position of the RO based on the symbol position of the control channel resource set. Therefore, in this case, the start time domain position of the RO in the third time unit indicated by the fifth indication information is located after the time domain position of the last one of the control channel resource sets in the third time unit.
- the starting symbol number of the RO depends on the RMSI CORESET duration l and the symbol offset k of the RMSI CORESET in the third time unit, and the starting symbol number of the RO may include ⁇ l, 2l, k+l ⁇ .
- the RMSI CORESET duration l may be ⁇ 1, 2, 3 ⁇ OFDM symbols, and the starting symbol number (ie, k) of the RMSI CORESET may be 7, and the embodiment of the present application is not limited thereto.
- the fourth indication information used to indicate the number of ROs in the third time unit is based on a starting time domain location of the RO in the third time unit, and the preamble sequence The length of the occupied time domain resource is determined.
- the number of ROs in the third time unit indicated by the fourth indication information is less than or equal to the start time domain position of the RO to the end of the third time unit
- the number of ROs in the third time unit indicated by the fourth indication information is less than or equal to between the start time domain position of the RO and the end time domain position of the third time unit.
- the fourth indication information of the embodiment of the present application will be described in two cases for the starting time domain of the two different ROs.
- the first case is a first case:
- the embodiment of the present application may use Ns to indicate the starting time domain position of the RO, and then, as shown in Table 3 or Table 5, the fourth indication information
- the number of ROs in the indicated third time unit may be as shown in the last column of Table 2 or Table 4.
- the time domain resource length from the start time domain position of the RO to the end time domain location of the third time unit is 14-Ns, wherein 14 indicates the total number of symbols in one slot, and the symbol length of the preamble sequence is 2. Therefore, the maximum number of ROs in the third time unit indicated by the fourth indication information as shown in Table 3 is floor[(14). -Ns)/2], where floor[] indicates rounding down.
- the time domain resource length from the start time domain position of the RO to the end time domain location of the third time unit is 13-Ns, and the preamble The symbol length of the sequence is 2, and therefore, the number of ROs in the third time unit indicated by the fourth indication information as shown in Table 3 is maximum floor[(13-Ns)/2].
- the time domain resource length from the start time domain position of the RO to the end time domain location of the third time unit is 14-Ns
- 14 indicates the total number of symbols in a time slot
- the symbol length of the preamble sequence is 2. Therefore, the maximum number of ROs in the third time unit indicated by the fourth indication information as shown in Table 5 is floor[( 14-Ns)/2].
- the time domain resource length from the start time domain position of the RO to the end time domain location of the third time unit is 13-Ns, and the preamble The symbol length of the sequence is 2, and therefore, the number of ROs in the third time unit indicated by the fourth indication information as shown in Table 5 is maximum floor[(13-Ns)/2].
- the second case is a first case
- the start symbol position of the RO in the third time unit indicated by the fifth indication information is 0 or a preset position, then as shown in Table 2 or Table 4, the third time unit indicated by the fourth indication information
- the number of ROs can be as shown in the last column of Table 2 or Table 4.
- the time domain resource length from the start time domain position of the RO to the end time domain location of the third time unit is 14 (14-0)
- 14 indicates the total number of symbols in a time slot
- the symbol length of the preamble sequence is 2. Therefore, the maximum number of ROs in the third time unit indicated by the fourth indication information as shown in Table 2 is 7 (ie, 14/2).
- the time domain resource length from the start time domain position of the RO to the end time domain position of the third time unit is 13
- the preamble sequence The symbol length is 2, and therefore, the number of ROs in the third time unit indicated by the fourth indication information as shown in Table 2 is 6 (ie, floor[(13-0)/2]).
- the time domain resource length from the start time domain position of the RO to the end time domain location of the third time unit is 14, wherein 14 denotes the total number of symbols of one slot, and the symbol length of the preamble sequence is 2, therefore, the number of ROs in the third time unit indicated by the fourth indication information as shown in Table 4 is at most 7.
- the time domain resource length from the start time domain position of the RO to the end time domain location of the third time unit is 13
- the preamble sequence The symbol length is 2, and therefore, the number of ROs in the third time unit indicated by the fourth indication information as shown in Table 4 is at most 6.
- Table 2 and Table 3 correspond to each other, which are preamble short sequence PRACH configuration tables below TDD 6 GHz.
- the difference between Table 2 and Table 3 is that the fifth indication information in Table 2 is one of ⁇ l, 2l, k+1], and the fifth indication information in Table 3 is 0.
- the form of the fourth indication information in the corresponding Table 2 and Table 3 is also different.
- Table 4 and Table 5 correspond to the preamble short sequence PRACH configuration table of TDD 6 GHz or higher.
- the difference between Table 4 and Table 5 is that the fifth indication information in Table 4 is one of ⁇ l, 2l, k+1], and the fifth indication information in Table 5 is 0.
- the form of the fourth indication information in the corresponding Tables 4 and 5 is also different.
- the method shown in FIG. 3 may further include:
- the terminal device sends a preamble sequence on a time domain resource of the at least one RO configured by the first configuration information.
- the terminal device may determine, according to the first configuration index, the first configuration corresponding to the first configuration index from a one-to-one correspondence between the pre-stored multiple configuration indexes and the multiple sets of configuration information. And the terminal device may determine the time domain resource of the at least one RO according to the first configuration information. Thereafter, the terminal device can transmit the preamble sequence on the time domain resource of the at least one RO.
- the terminal device may send the preamble sequence on the time domain resources of some or all of the time domain resources of the at least one RO, and the embodiment of the present application is not limited thereto.
- the RO resource and the downlink resource eg, SSB and/or RMSI CORESET
- the probability of collision increases the number of ROs that are valid during the PRACH configuration period, which can improve the random access efficiency of the terminal device.
- the method further includes:
- the terminal device does not transmit the preamble sequence on a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- collision in the embodiment of the present application may indicate that in the TDD system, the RO uplink resource determined by the terminal device coincides with the time domain resource of the common signal block or the time domain location of the downlink resource of the control channel resource set.
- the time domain resources of the above-mentioned configuration RO can be avoided as much as possible in the conflict with the SSB or the control channel resource set, there is still a possibility of conflict.
- the terminal device determines the time domain resource of the one or more ROs in the time domain resource of the at least one RO and the time domain resource of the common signal block or the control channel resource set When a domain resource conflicts, the preamble sequence may not be sent on the time domain resource of the conflicting RO.
- the time domain resource of the one or more of the time domain resources of the at least one RO is located on the non-uplink resource of the semi-static uplink and downlink configuration, and the method further includes:
- the terminal device sends a preamble sequence on a time domain resource of the at least one RO configured by the first configuration information.
- the terminal device determines that the time domain resource of one or more of the time domain resources of the at least one RO does not match the semi-static uplink and downlink configuration. In this case, the terminal device may still be in the one or more The preamble sequence is sent on the RO's time domain resource.
- the embodiment of the present application can improve the success rate of random access by transmitting the preamble sequence when the time domain resource resource of the selected set of ROs does not match the semi-static uplink and downlink configuration.
- the starting time domain location of the RO in the third time unit indicated by the fifth indication information is located in the non-uplink resource of the semi-static uplink and downlink configuration of the third time unit.
- the method shown in FIG. 3 may further include:
- the terminal device updates the time domain location of the RO according to the semi-static uplink and downlink configuration of the third time unit,
- the terminal device sends a preamble sequence according to the updated time domain location of the RO.
- the terminal device updates the time domain location of the RO according to the semi-static uplink and downlink configuration of the third time unit, including:
- the terminal device is configured to: the number of ROs that can be carried by the uplink symbol in the semi-static uplink and downlink configuration of the third time unit and the number of ROs in the third time unit indicated by the fourth indication information The number is updated to the number of ROs in the third time unit.
- the UE sends the random access Preamble only in the PRACH opportunity (RO) in the uplink part in the semi-static uplink/downlink configuration.
- the uplink portion of the uplink/downlink configuration includes a full semi-static uplink time slot and a special time slot containing uplink symbols.
- the total number of symbols in a time slot when the random access occasion (RO) indicated by the PRACH configuration is located in the special time slot When the difference between the uplink symbol length y2 and the uplink symbol length y2 in the special time slot is greater than the RO start symbol number indicated in the PRACH configuration, the UE sends the random access Preamble starting symbol number in the special time slot as a total time slot.
- the maximum number of ROs that can be supported in this special time slot is
- L is the duration of the random access preamble
- N RO is the number of ROs included in the RACH slot indicated in the PRACH configuration.
- the starting symbol number of the UE that sends the random access Preamble in the special time slot is The maximum number of ROs that can be supported in this special time slot is
- FIG. 3 depicts a method of communication in accordance with an embodiment of the present application. Another method of communication of an embodiment of the present application is described below with reference to FIG.
- the method 700 shown in Figure 7 includes:
- the network device sends index indication information, where the index indication information is used to indicate the first configuration index.
- the terminal device receives the index indication information.
- 710 and 310 correspond to each other. To avoid repetition, details are not described herein again.
- the terminal device determines first configuration information corresponding to the first configuration index according to the first configuration index, where the first configuration information is used to indicate a time domain resource of a first group of random access preamble opportunities or a time domain resource of the second group of ROs, wherein the time domain resources of the first group of ROs and the time domain resources of the second group of ROs are located in a first time unit in a random access configuration period, the first group of ROs
- the time domain resource or the time domain resource of the second group of ROs is determined according to the time domain offset of the control channel resource set and/or the index of the first time unit;
- the terminal device may determine the time domain resources of the two groups of ROs according to the first configuration index.
- the terminal device may determine the first configuration information corresponding to the first configuration index according to the one-to-one correspondence between the multiple configuration indexes and the multiple configuration information, where the first configuration index is the After determining the first configuration information, the terminal device may determine the time domain resources of the two sets of ROs according to the configuration information.
- both the terminal device and the network device know in advance a one-to-one correspondence between the multiple configuration indexes and the multiple sets of configuration information.
- both the terminal device and the network device pre-store a one-to-one correspondence between the plurality of configuration indexes and the plurality of sets of configuration information.
- the one-to-one correspondence between the multiple configuration indexes and the multiple sets of configuration information in the embodiment of the present application may be a PRACH configuration table.
- the PRACH configuration table may be a preamble short sequence configuration table of TDD 6 GHz or higher. For example, as in Table 4 or Table 5 above.
- step 720 corresponds to step 320, and 720 and 320 differ in that the configuration information in 320 may only indicate a set of RO time domain resources (eg, corresponding to Table 2 or Table 3 above), and may indicate The time domain resources of the two sets of ROs (for example, corresponding to Table 4 or Table 5 above).
- the configuration information in 320 may only indicate a set of RO time domain resources (eg, corresponding to Table 2 or Table 3 above), and may indicate The time domain resources of the two sets of ROs (for example, corresponding to Table 4 or Table 5 above).
- the first configuration information includes at least one of the following information:
- Second indication information indicating at least one second time unit of the first time unit, the at least one second time unit comprising a first group of second time units and a second group of second time units, wherein The time domain resources of the first group of ROs belong to the first group of second time units, and the time domain resources of the second group of ROs belong to the second group of second time units.
- Third indication information indicating a number of third time units included in each of the first group of second time units and the second time unit of the second group of second time units
- the random access configuration period is greater than a preset duration threshold, and a time domain offset of the control channel resource set indicates a first common signal block association in the common signal block detection window.
- the first indication information used to indicate the first time unit is determined according to a time domain offset of the control channel resource set.
- the first time unit indicated by the first indication information is in the The sequence number corresponding to the position in the random access configuration period is an even number; or,
- the location of the first time unit indicated by the first indication information in the random access configuration period corresponds to The serial number is odd.
- the second indication information used to indicate the at least one second time unit is determined according to a time domain location of the common signal block.
- the at least one second time unit indicated by the second indication information is located in a time domain other than an optional time domain position of the common signal block in the first time unit. position.
- the second indication information used to indicate the at least one second time unit is based on an optional time domain location of the common signal block, and/or the first time unit The index is determined.
- the first group of second time units is located in a time domain position of the first half time domain portion of the first time unit except an optional time domain position of the common signal block;
- the second group of second time units is located in a time domain position of the second half time domain portion of the first time unit except for an optional time domain position of the common signal block;
- the terminal device determines a time domain resource of a group of ROs, including:
- a time domain resource of the group of ROs according to an index of the first time unit, where when the index of the first time unit is an even number, the time of determining a group of ROs by the terminal device
- the domain resource is the time domain resource of the first group of ROs; or when the index of the first time unit is an odd number, when the time domain resource of the group of ROs determined by the terminal device is the second group of ROs Domain resource.
- the preset offset threshold is one of 2, 2.5, 5, 7, and 7.5.
- the fifth indication information used to indicate a start time domain location of an RO in the third time unit is according to the control channel resource set in the third time unit.
- the time domain location is determined, wherein a start time domain location of the RO in the third time unit is located after a time domain location of a preset one of the control channel resource sets in the third time unit; or
- the start time domain position of the RO in the third time unit indicated by the five indication information is the start time domain position of the third time unit or the preset time domain position in the third time unit.
- the initial time domain position of the RO indicates that the RO occupies the first fourth time unit in the at least one fourth time unit of the third time unit in the third time unit. Position in
- the RO in the third time unit In the case where the start time domain position of the RO in the third time unit is located after the time domain position of the last one of the control channel resource sets in the third time unit, the RO in the third time unit.
- the value of the sequence number of the fourth time unit corresponding to the start time domain position is one of the following three:
- the fourth indication information used to indicate the number of ROs in the third time unit is based on a starting time domain location of the RO in the third time unit, and the preamble sequence The size of the occupied time domain resource is determined.
- the number of ROs in the third time unit indicated by the fourth indication information is less than or equal to the end time from the RO to the end of the third time unit.
- the terminal device determines a time domain resource of a group of ROs, where the time domain resources of the group of ROs are time domain resources of the first group of ROs or time domain resources of the second group of ROs.
- the network device may first determine the time domain resource of the common signal block and/or the time domain information of the control channel resource set, and then the network device may according to the time domain resource of the common signal block and/or the time domain of the control channel resource set.
- the information determines the time domain resource of the RO (that is, the configuration information corresponding to the time domain resource of the RO).
- the network device may determine a configuration index corresponding to the time domain resource of the RO according to the one-to-one correspondence between the pre-stored multiple configuration indexes and the multiple sets of configuration information.
- the network device configures the first configuration index to the terminal device by using index indication information.
- the terminal device may determine the first configuration information corresponding to the first configuration index from the one-to-one correspondence between the pre-stored multiple configuration indexes and the multiple configuration information according to the first configuration index, and the terminal device may be configured according to the first configuration.
- the information determines the time domain resources of the two sets of ROs, and selects one of the time domain resources of the two sets of ROs.
- the RO resource and the downlink resource eg, SSB and/or can be reduced. Or the probability of collision with the RMSI CORESET), which increases the number of ROs that are valid during the PRACH configuration period, and can improve the random access efficiency of the terminal device.
- the set of RO resources determined in step 730 may correspond to the time domain resources of at least one RO in step 320.
- the set of RO resources determined in step 730 may correspond to the time domain resources of at least one RO in step 320.
- the method shown in FIG. 7 may further include:
- the terminal device transmits a preamble sequence in a determined time domain resource of a group of ROs.
- the method further includes:
- the terminal device does not transmit the preamble sequence in a time domain resource of one or more ROs that conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the time domain resource of one or more of the time-domain resources of the set of ROs determined by the terminal device is located on the non-uplink resource of the semi-static uplink and downlink configuration, and the method further includes:
- the terminal device transmits a preamble sequence in a determined time domain resource of a group of ROs.
- the processing manner of the uplink and downlink configuration mismatch may also be an independent solution, that is, the processing manner may not be accepted in the configuration method for determining the RO resource in FIG. 3 or FIG. 7.
- the embodiment of the present application is not limited thereto.
- the method 800 shown in FIG. 8 includes:
- the network device sends index indication information, where the index indication information is used to indicate the first configuration index.
- the terminal device determines, according to the first configuration index, a time domain resource of the at least one RO.
- the time domain resource of the RO may be determined by using the method shown in FIG. 3 or FIG. 7 above, and other methods, such as the configuration in the existing standard, may be used to determine the time domain resource of the RO.
- the example is not limited to this.
- the terminal device determines whether to send or not send the preamble sequence according to the conflict condition.
- the “collision” in the embodiment of the present application may indicate that in the TDD system, the RO uplink resource determined by the terminal device coincides with the time domain resource of the common signal block or the time domain location of the downlink resource of the control channel resource set. Or, the time domain resource of the one or more ROs in the time domain resource of the at least one RO does not match the semi-static uplink and downlink configuration.
- the description in 830 can refer to the manner of conflict processing in FIG. 3 or FIG. 7 above. To avoid repetition, details are not described herein again.
- the embodiment of the present application by sending a preamble sequence on a conflicting resource when there is a resource conflict, unnecessary useless work can be avoided, and random access failure occurs. Moreover, the embodiment of the present application can improve the success rate of random access by transmitting the preamble sequence when the time domain resource resource of the selected set of ROs does not match the semi-static uplink and downlink configuration.
- FIG. 1 to FIG. 8 are merely for facilitating the understanding of the embodiments of the present invention, and the embodiments of the present invention are not limited to the specific numerical values or specific examples illustrated. A person skilled in the art will be able to make various modifications and changes in accordance with the examples of FIG. 1 to FIG. 8 which are within the scope of the embodiments of the present invention.
- the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
- the implementation process constitutes any limitation.
- the method of communication of the embodiment of the present invention is described in detail with reference to FIG. 1 to FIG. 8.
- the communication device of the embodiment of the present application is described below with reference to FIG. 9 to FIG. Specifically, the terminal device of the embodiment of the present application is described with reference to FIG. 9 and FIG. 11, and the network device according to the embodiment of the present invention is described with reference to FIG. 10 to FIG.
- FIG. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application. Specifically, the terminal device shown in FIG. 9 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiment.
- the terminal device 900 shown in FIG. 9 includes a processing unit 910 and a transceiver unit 920.
- the transceiver unit is configured to receive index indication information, where the index indication information is used to indicate a first configuration index, and the processing unit is configured to determine the first configuration according to the first configuration index.
- Corresponding first configuration information where the first configuration information is used to indicate a time domain resource of at least one random access preamble opportunity RO, where the first configuration information is based on a time domain resource of a common signal block and/or The time domain information of the control channel resource set is determined.
- the RO resource and the downlink resource eg, SSB and/or RMSI CORESET
- the probability of collision increases the number of ROs that are valid during the PRACH configuration period, which can improve the random access efficiency of the terminal device.
- the first configuration information includes at least one of the following information: first indication information used to indicate a first time unit in a random access configuration period, where the The second indication information of the at least one second time unit of the one time unit is used to indicate the third indication information of the third time unit number included in each of the at least one second time unit And fourth indication information for indicating the number of ROs in the third time unit, and fifth indication information for indicating a start time domain position of the RO in the third time unit.
- the random access configuration period is greater than a preset duration threshold
- time domain information of the control channel resource set includes a time domain offset of the control channel resource set, where the control The time domain offset of the channel resource set indicates the start time domain position of the control channel resource set associated with the first common signal block in the common signal block detection window and the start of the system frame in which the control channel resource set is located a duration between the locations; the first indication information used to indicate the first time unit is determined according to a time domain offset of the control channel resource set.
- the first time unit indicated by the first indication information is in the The sequence number corresponding to the location in the random access configuration period is an even number; or, when the time domain offset of the control channel resource set is smaller than the preset offset threshold, the first indication information indicates The sequence number corresponding to the location of the first time unit in the random access configuration period is an odd number.
- the second indication information used to indicate the at least one second time unit is determined according to a time domain location of the common signal block.
- the at least one second time unit indicated by the second indication information is located in the first time unit except for an optional time domain position of the common signal block. Domain location.
- the second indication information used to indicate the at least one second time unit is based on an optional time domain location of the common signal block and/or the first time unit The index is determined.
- the at least one second time unit includes a first group of second time units and a second group of second time units, where the first group of second time units is located at the first time a time domain location in the first half of the time domain portion of the unit other than the optional time domain location of the common signal block; the second group of second time units being located in the second half of the time domain portion of the first time unit a time domain location outside the optional time domain location of the common signal block; when the index of the first time unit is an even number, the time domain resource of the at least one random access preamble opportunity RO belongs to the second The first group of second time units indicated by the indication information; or, when the index of the first time unit is an odd number, the time domain resource of the at least one random access preamble opportunity RO belongs to the second indication information The second set of second time units indicated.
- the preset offset threshold is one of 2, 2.5, 5, 7, and 7.5.
- the time domain information of the control channel resource set includes a time domain location of the control channel resource set in the third time unit, and is used to indicate the third time unit.
- the fifth indication information of the start time domain location of the RO is determined according to the time domain location of the control channel resource set in the third time unit, wherein the RO in the third time unit starts The start time domain location is located after a time domain location of a preset one of the control channel resource sets in the third time unit; or the start time domain of the RO in the third time unit indicated by the fifth indication information
- the location is a starting time domain location of the third time unit or a preset time domain location in the third time unit.
- the initial time domain position of the RO indicates that the RO occupies the first fourth time unit of the at least one fourth time unit in the third time unit at the third time. a position in the unit; in the case where the start time domain position of the RO in the third time unit is located after the time domain position of the last one of the control channel resource sets in the third time unit, the third time
- the value of the sequence number of the fourth time unit corresponding to the start time domain position of the RO in the unit is one of the following three times: the time domain length of the control channel resource set in the third time unit a time domain length of the control channel resource set in the third time unit; and a sequence number of the first fourth time unit of the control channel resource set in the third time unit and the control channel The sum of the time domain lengths of the resource set.
- the fourth indication information used to indicate the number of ROs in the third time unit is based on a starting time domain location of the RO in the third time unit, and the preamble The length of the time domain resource occupied by the sequence is determined.
- the number of ROs in the third time unit indicated by the fourth indication information is less than or equal to a starting time domain location from the RO to the third time unit.
- the first time unit is a system frame
- the second time unit is a subframe or 0.25 ms
- the third time unit is a time slot.
- the transceiver unit is further configured to send a preamble sequence on a time domain resource of the at least one RO configured by the first configuration information.
- the transceiver unit is further configured to send the preamble sequence on a time domain resource of one or more ROs that do not conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the time domain resource of the one or more ROs of the at least one RO time domain resource is located on the non-uplink resource of the semi-static uplink and downlink configuration, and the transceiver unit is further configured to Transmitting a preamble sequence on a time domain resource of the at least one RO configured by the first configuration information.
- the transceiver unit is configured to receive index indication information, where the index indication information is used to indicate a first configuration index
- the processing unit is configured to determine, according to the first configuration index, the The first configuration information corresponding to the first configuration index, where the first configuration information is used to indicate a time domain resource of the first group of random access preamble opportunities RO or a time domain resource of the second group of ROs, where the first group
- the time domain resource of the RO and the time domain resource of the second group of ROs are located in a first time unit in the random access configuration period, and the time domain resource of the first group RO or the time domain resource of the second group of RO is based on Determining a time domain offset of the control channel resource set and/or an index of the first time unit; determining a time domain resource of the group of ROs, the time domain resource of the group of ROs being the time of the first group of ROs Domain resource or time domain resource of the second group of ROs.
- the RO resource and the downlink resource eg, SSB and/or can be reduced. Or the probability of collision with the RMSI CORESET), which increases the number of ROs that are valid during the PRACH configuration period, and can improve the random access efficiency of the terminal device.
- the first configuration information includes at least one of the following information: first indication information used to indicate a first time unit in the random access configuration period, used to indicate a second indication information of at least one second time unit in the first time unit, the at least one second time unit comprising a first group of second time units and a second group of second time units, wherein the first The time domain resource of the group RO belongs to the first group of second time units, and the time domain resource of the second group of RO belongs to the second group of second time unit, and is used to indicate the first group of second time units.
- the third indication information of the third time unit number included in each of the second time units of the second group of second time units is used to indicate fourth indication information of the number of ROs in the third time unit, And fifth indication information for indicating a start time domain position of the RO in the third time unit.
- the random access configuration period is greater than a preset duration threshold
- the time domain offset of the control channel resource set represents a first common signal block in the common signal block detection window. a duration between a start time domain location of the associated control channel resource set and a start location of the system frame in which the control channel resource set is located; the first indication information used to indicate the first time unit is based on The time domain offset of the set of control channel resources is determined.
- the first time unit indicated by the first indication information is in the The sequence number corresponding to the location in the random access configuration period is an even number; or, when the time domain offset of the control channel resource set is smaller than the preset offset threshold, the first indication information indicates The sequence number corresponding to the location of the first time unit in the random access configuration period is an odd number.
- the second indication information used to indicate the at least one second time unit is determined according to a time domain location of the common signal block.
- the at least one second time unit indicated by the second indication information is located in the first time unit except for an optional time domain position of the common signal block. Domain location.
- the second indication information used to indicate the at least one second time unit is based on an optional time domain location of the common signal block and/or the first time unit The index is determined.
- the first group of second time units is located in a time domain position other than an optional time domain position of the common signal block in a first half time domain portion of the first time unit.
- the second set of second time units is located in a time domain location other than the selectable time domain location of the common signal block in the second half of the time domain portion of the first time unit; wherein the processing unit is Determining, according to an index of the first time unit, a time domain resource of the group of ROs, wherein when the index of the first time unit is an even number, the processing unit determines a time domain resource of a group of ROs a time domain resource of the first group of ROs; or a time domain resource of the second group of ROs determined by the processing unit when the index of the first time unit is an odd number .
- the preset offset threshold is one of 2, 2.5, 5, 7, and 7.5.
- the fifth indication information used to indicate a start time domain location of the RO in the third time unit is according to the control channel resource set in the third time unit.
- the time domain location is determined, wherein a start time domain location of the RO in the third time unit is located after a time domain location of a preset one of the control channel resource sets in the third time unit; or
- the start time domain position of the RO in the third time unit indicated by the fifth indication information is a start time domain position of the third time unit or a preset time domain position in the third time unit.
- the initial time domain position of the RO indicates that the RO occupies the first fourth time unit of the at least one fourth time unit in the third time unit at the third time. a position in the unit; in the case where the start time domain position of the RO in the third time unit is located after the time domain position of the last one of the control channel resource sets in the third time unit, the third time
- the value of the sequence number of the fourth time unit corresponding to the start time domain position of the RO in the unit is one of the following three times: the time domain length of the control channel resource set in the third time unit a time domain length of the control channel resource set in the third time unit; and a sequence number of the first fourth time unit of the control channel resource set in the third time unit and the control channel The sum of the time domain lengths of the resource set.
- the fourth indication information used to indicate the number of ROs in the third time unit is based on a starting time domain location of the RO in the third time unit, and the preamble The size of the time domain resource occupied by the sequence is determined.
- the number of ROs in the third time unit indicated by the fourth indication information is less than or equal to a starting time domain location from the RO to the third time unit.
- the first time unit is a system frame
- the second time unit is a subframe or 0.25 ms
- the third time unit is a time slot.
- the transceiver unit is further configured to send a preamble sequence in the determined time domain resource of the group of ROs.
- the transceiver unit is further configured to send the preamble sequence to a time domain resource of one or more ROs that do not conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the time domain resources of the one or more ROs in the time domain resources of the set of ROs are located on the non-uplink resources of the semi-static uplink and downlink configuration, and the transceiver unit is further configured to: The preamble sequence is sent in the determined time domain resource of a group of ROs.
- the transceiver unit is configured to receive index indication information, where the index indication information is used to indicate a first configuration index, and the processing unit is configured to determine, according to the first configuration index, a time domain resource of the at least one random access preamble opportunity RO corresponding to the first configuration index; determining a time domain resource of the one or more ROs in the time domain resource of the at least one RO and a time domain of the common signal block
- the transceiver unit is further configured to: when the time domain resource of the resource or control channel resource set conflicts, the one or more ROs that are not in conflict with the time domain resource of the common signal block or the time domain resource of the control channel resource set Transmitting, by the time domain resource, the preamble sequence; or, when determining that the time domain resource of the one or more ROs of the at least one RO time domain resource is located on the non-uplink resource of the semi-static uplink and downlink configuration, the transceiver unit Also used to transmit a preamble sequence in a time domain
- the embodiment of the present application by sending a preamble sequence on a conflicting resource when there is a resource conflict, unnecessary useless work can be avoided, and random access failure occurs. Moreover, the embodiment of the present application can improve the success rate of random access by transmitting the preamble sequence when the time domain resource resource of the selected set of ROs does not match the semi-static uplink and downlink configuration.
- the terminal device 900 shown in FIG. 9 can implement the various processes involved in the terminal device in the method embodiments of FIGS. 1 through 8.
- the operations and/or functions of the respective modules in the terminal device 900 are respectively implemented in order to implement the corresponding processes in the foregoing method embodiments.
- the detailed description is omitted here.
- FIG. 10 is a schematic block diagram of a network device according to an embodiment of the present application. Specifically, the network device shown in FIG. 10 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment.
- the network device 1000 shown in FIG. 10 includes a processing unit 1010 and a transceiver unit 1020.
- the processing unit is configured to generate index indication information, where the index indication information is used to indicate a first configuration index
- the transceiver unit is configured to send the index indication information to the terminal device, where the index
- the indication information is used by the terminal device to determine, according to the first configuration index, first configuration information corresponding to the first configuration index, where the first configuration information is used to indicate at least one random access preamble opportunity RO
- the domain resource, the first configuration information is determined according to time domain resources of the common signal block and/or time domain information of the control channel resource set.
- the RO resource and the downlink resource eg, SSB and/or RMSI CORESET
- the probability of collision increases the number of ROs that are valid during the PRACH configuration period, which can improve the random access efficiency of the terminal device.
- the first configuration information includes at least one of the following information: first indication information used to indicate a first time unit in a random access configuration period, where the The second indication information of the at least one second time unit of the one time unit is used to indicate the third indication information of the third time unit number included in each of the at least one second time unit And fourth indication information for indicating the number of ROs in the third time unit, and fifth indication information for indicating a start time domain position of the RO in the third time unit.
- the random access configuration period is greater than a preset duration threshold
- time domain information of the control channel resource set includes a time domain offset of the control channel resource set, where the control The time domain offset of the channel resource set indicates the start time domain position of the control channel resource set associated with the first common signal block in the common signal block detection window and the start of the system frame in which the control channel resource set is located a duration between the locations; the first indication information used to indicate the first time unit is determined according to a time domain offset of the control channel resource set.
- the first time unit indicated by the first indication information is in the The sequence number corresponding to the location in the random access configuration period is an even number; or, when the time domain offset of the control channel resource set is smaller than the preset offset threshold, the first indication information indicates The sequence number corresponding to the location of the first time unit in the random access configuration period is an odd number.
- the second indication information used to indicate the at least one second time unit is determined according to a time domain location of the common signal block.
- the at least one second time unit indicated by the second indication information is located in the first time unit except for an optional time domain position of the common signal block. Domain location.
- the second indication information used to indicate the at least one second time unit is based on an optional time domain location of the common signal block and/or the first time unit The index is determined.
- the at least one second time unit includes a first group of second time units and a second group of second time units, where the first group of second time units is located at the first time a time domain location in the first half of the time domain portion of the unit other than the optional time domain location of the common signal block; the second group of second time units being located in the second half of the time domain portion of the first time unit a time domain location outside the optional time domain location of the common signal block; when the index of the first time unit is an even number, the time domain resource of the at least one random access preamble opportunity RO belongs to the second The first group of second time units indicated by the indication information; or, when the index of the first time unit is an odd number, the time domain resource of the at least one random access preamble opportunity RO belongs to the second indication information The second set of second time units indicated.
- the preset offset threshold is one of 2, 2.5, 5, 7, and 7.5.
- the time domain information of the control channel resource set includes a time domain location of the control channel resource set in the third time unit, and is used to indicate the third time unit.
- the fifth indication information of the start time domain location of the RO is determined according to the time domain location of the control channel resource set in the third time unit, wherein the RO in the third time unit starts The start time domain location is located after a time domain location of a preset one of the control channel resource sets in the third time unit; or the start time domain of the RO in the third time unit indicated by the fifth indication information
- the location is a starting time domain location of the third time unit or a preset time domain location in the third time unit.
- the initial time domain position of the RO indicates that the RO occupies the first fourth time unit of the at least one fourth time unit in the third time unit at the third time. a position in the unit; in the case where the start time domain position of the RO in the third time unit is located after the time domain position of the last one of the control channel resource sets in the third time unit, the third time
- the value of the sequence number of the fourth time unit corresponding to the start time domain position of the RO in the unit is one of the following three times: the time domain length of the control channel resource set in the third time unit a time domain length of the control channel resource set in the third time unit; and a sequence number of the first fourth time unit of the control channel resource set in the third time unit and the control channel The sum of the time domain lengths of the resource set.
- the fourth indication information used to indicate the number of ROs in the third time unit is based on a starting time domain location of the RO in the third time unit, and the preamble The length of the time domain resource occupied by the sequence is determined.
- the number of ROs in the third time unit indicated by the fourth indication information is less than or equal to a starting time domain location from the RO to the third time unit.
- the first time unit is a system frame
- the second time unit is a subframe or 0.25 ms
- the third time unit is a time slot.
- the transceiver unit is further configured to receive a preamble sequence sent by the terminal device on a time domain resource of the at least one RO configured by the first configuration information.
- the transceiver unit is further configured to receive the preamble sequence on a time domain resource of one or more ROs that do not conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the time domain resource of the one or more ROs of the at least one RO time domain resource is located on the non-uplink resource of the semi-static uplink and downlink configuration, and the transceiver unit is further configured to The preamble sequence sent by the terminal device is received on a time domain resource of the at least one RO configured by the first configuration information.
- the processing unit is configured to generate index indication information, where the index indication information is used to indicate a first configuration index
- the transceiver unit is configured to send index indication information to the terminal device, where The index indication information is used by the terminal device to determine first configuration information corresponding to the first configuration index according to the first configuration index, where the first configuration information is used to indicate a first group of random access preamble opportunities RO a time domain resource or a time domain resource of the second group of ROs, so that the terminal device determines a time domain resource of a group of ROs, and the time domain resource of the group of ROs is a time domain resource of the first group of ROs or The time domain resources of the second group of ROs.
- the time domain resource of the first group of ROs and the time domain resource of the second group of ROs are located in a first time unit in a random access configuration period, and the time domain resources of the first group of ROs or the second group of ROs
- the time domain resource is determined according to the time domain offset of the control channel resource set and/or the index of the first time unit.
- the RO resource and the downlink resource eg, SSB and/or can be reduced. Or the probability of collision with the RMSI CORESET), which increases the number of ROs that are valid during the PRACH configuration period, and can improve the random access efficiency of the terminal device.
- the first configuration information includes at least one of the following information: first indication information used to indicate a first time unit in the random access configuration period, used to indicate a second indication information of at least one second time unit in the first time unit, the at least one second time unit comprising a first group of second time units and a second group of second time units, wherein the first The time domain resource of the group RO belongs to the first group of second time units, and the time domain resource of the second group of RO belongs to the second group of second time unit, and is used to indicate the first group of second time units.
- the third indication information of the third time unit number included in each of the second time units of the second group of second time units is used to indicate fourth indication information of the number of ROs in the third time unit, And fifth indication information for indicating a start time domain position of the RO in the third time unit.
- the random access configuration period is greater than a preset duration threshold
- the time domain offset of the control channel resource set represents a first common signal block in the common signal block detection window. a duration between a start time domain location of the associated control channel resource set and a start location of the system frame in which the control channel resource set is located; the first indication information used to indicate the first time unit is based on The time domain offset of the set of control channel resources is determined.
- the first time unit indicated by the first indication information is in the The sequence number corresponding to the location in the random access configuration period is an even number; or, when the time domain offset of the control channel resource set is smaller than the preset offset threshold, the first indication information indicates The sequence number corresponding to the location of the first time unit in the random access configuration period is an odd number.
- the second indication information used to indicate the at least one second time unit is determined according to a time domain location of the common signal block.
- the at least one second time unit indicated by the second indication information is located in the first time unit except for an optional time domain position of the common signal block. Domain location.
- the second indication information used to indicate the at least one second time unit is based on an optional time domain location of the common signal block and/or the first time unit The index is determined.
- the first group of second time units is located in a time domain position other than an optional time domain position of the common signal block in a first half time domain portion of the first time unit.
- the second set of second time units are located in a time domain position other than the selectable time domain position of the common signal block in the second half of the first time unit.
- the preset offset threshold is one of 2, 2.5, 5, 7, and 7.5.
- the fifth indication information used to indicate a start time domain location of the RO in the third time unit is according to the control channel resource set in the third time unit.
- the time domain location is determined, wherein a start time domain location of the RO in the third time unit is located after a time domain location of a preset one of the control channel resource sets in the third time unit; or
- the start time domain position of the RO in the third time unit indicated by the fifth indication information is a start time domain position of the third time unit or a preset time domain position in the third time unit.
- the initial time domain position of the RO indicates that the RO occupies the first fourth time unit of the at least one fourth time unit in the third time unit at the third time. a position in the unit; in the case where the start time domain position of the RO in the third time unit is located after the time domain position of the last one of the control channel resource sets in the third time unit, the third time
- the value of the sequence number of the fourth time unit corresponding to the start time domain position of the RO in the unit is one of the following three times: the time domain length of the control channel resource set in the third time unit a time domain length of the control channel resource set in the third time unit; and a sequence number of the first fourth time unit of the control channel resource set in the third time unit and the control channel The sum of the time domain lengths of the resource set.
- the fourth indication information used to indicate the number of ROs in the third time unit is based on a starting time domain location of the RO in the third time unit, and the preamble The size of the time domain resource occupied by the sequence is determined.
- the number of ROs in the third time unit indicated by the fourth indication information is less than or equal to a starting time domain location from the RO to the third time unit.
- the first time unit is a system frame
- the second time unit is a subframe or 0.25 ms
- the third time unit is a time slot.
- the transceiver unit is further configured to receive a preamble sequence of the time domain resource transmission of the determined set of ROs by the terminal device.
- the transceiver unit is further configured to receive on a time domain resource of one or more ROs that do not conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the leader sequence is further configured to receive on a time domain resource of one or more ROs that do not conflict with a time domain resource of the common signal block or a time domain resource of the control channel resource set.
- the time domain resources of the one or more ROs in the time domain resources of the set of ROs determined by the terminal device are located on the non-uplink resources of the semi-static uplink and downlink configuration, and the transceiver unit And a preamble sequence for receiving the time domain resource transmission of the determined set of ROs by the terminal device.
- the processing unit is configured to generate index indication information, where the index indication information is used to indicate a first configuration index, and the transceiver unit sends the index indication information to a terminal device, Determining, by the terminal device, the time domain resource of the at least one random access preamble opportunity RO corresponding to the first configuration index according to the first configuration index; determining the time domain of the at least one RO When the time domain resource of one or more ROs in the resource conflicts with the time domain resource of the common signal block or the time domain resource of the control channel resource set, the transceiver unit is further configured to not use the time domain resource with the common signal block.
- the transceiver unit is further configured to connect to the time domain resource of the at least one RO configured by the first configuration information.
- the terminal equipment transmits the preamble sequence.
- the embodiment of the present application by sending a preamble sequence on a conflicting resource when there is a resource conflict, unnecessary useless work can be avoided, and random access failure occurs. Moreover, the embodiment of the present application can improve the success rate of random access by transmitting the preamble sequence when the time domain resource resource of the selected set of ROs does not match the semi-static uplink and downlink configuration.
- the network device 1000 shown in FIG. 10 can implement various processes related to the network device in the method embodiments of FIG. 1 to FIG.
- the operations and/or functions of the various modules in the network device 1000 are respectively implemented in order to implement the corresponding processes in the foregoing method embodiments.
- the detailed description is omitted here.
- FIG. 11 is a schematic block diagram of a terminal device according to another embodiment of the present application. Specifically, the terminal device shown in FIG. 11 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiment.
- the terminal device 1100 includes a processor 1110 and a transceiver 1120.
- the processor 1110 is connected to the transceiver 1120.
- the terminal device may further include a memory 1130.
- the processor 1110 The memory 1130 is coupled to the processor 1110, the transceiver 1120, and the memory 1130 for communicating with each other via an internal connection path to communicate control and/or data signals.
- the transceiver 1120 can be an antenna or control circuit having a transceiving function, and the transceiver can include a receiver for receiving data and a transmitter for transmitting data.
- the memory 1130 can be used to store instructions, the processor 1110 is configured to execute instructions stored in the memory 1130, control the transceiver 1120 to receive information or signals, and the controller 1110 can execute the instructions in the memory 1130 to complete the above FIG. 1 to 8 Method embodiments relate to various processes of a terminal device. To avoid repetition, we will not repeat them here.
- terminal device 1100 may correspond to the terminal device 900 in FIG. 9 described above, and the function of the processing unit 910 in the terminal device 900 may be implemented by the processor 1110, and the function of the transceiver unit 920 may be implemented by the transceiver 1120. In order to avoid repetition, a detailed description is omitted as appropriate herein.
- FIG. 12 is a schematic block diagram of a network device according to another embodiment of the present application. Specifically, the network device shown in FIG. 12 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment.
- the network device 1200 includes a processor 1210 and a transceiver 1220.
- the processor 1210 is connected to the transceiver 1220.
- the network device may further include a memory 1230.
- the processor 1210 Connected to memory 1230, wherein processor 1210, transceiver 1220, and memory 1230 communicate with one another via internal connection paths to communicate control and/or data signals.
- the transceiver 1220 can be an antenna or control circuit having a transceiving function, and the transceiver can include a receiver for receiving data and a transmitter for transmitting data.
- the memory 1230 can be used to store instructions, the processor 1210 is configured to execute instructions stored in the memory 1230, control the transceiver 1220 to receive information or signals, and the controller 1210 can execute the instructions in the memory 1230 to complete the above-described FIG. 1 to FIG. 8 Method embodiments relate to various processes of a network device. To avoid repetition, we will not repeat them here.
- the network device 1200 can correspond to the network device 1000 of FIG. 10 described above.
- the functions of the processing unit 1010 in the network device 1000 can be implemented by the processor 1210, and the functions of the transceiver unit 1020 can be implemented by the transceiver 1220. In order to avoid repetition, a detailed description is omitted as appropriate herein.
- the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capabilities.
- each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
- the above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated crucit (ASIC), a field programmable gate array (FPGA) or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
- the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory.
- the volatile memory can be a random access memory (RAM) that acts as an external cache.
- RAM random access memory
- SRAM static random access memory
- DRAM dynamic random access memory
- DDR SDRAM double data rate synchronous DRAM
- ESDRAM enhanced synchronous dynamic random access memory
- SLDRAM synchronously connected dynamic random access memory
- DR RAM direct memory bus random access memory
- the embodiment of the present application further provides a processing apparatus, including a processor and an interface, and a processor, which is used to perform the communication in any of the foregoing method embodiments.
- the above processing device may be a chip.
- the processing device may be a field-programmable gate array (FPGA), may be an application specific integrated circuit (ASIC), or may be a system on chip (SoC). It can be a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), or a microcontroller. Unit, MCU), can also be a programmable logic device (PLD) or other integrated chip.
- FPGA field-programmable gate array
- ASIC application specific integrated circuit
- SoC system on chip
- CPU central processor unit
- NP network processor
- DSP digital signal processor
- MCU can also be a programmable logic device (PLD) or other integrated chip.
- PLD programmable logic device
- the embodiment of the present application further provides a computer readable medium having stored thereon a computer program, the computer program being executed by a computer to implement the method of any of the foregoing method embodiments.
- the embodiment of the present application further provides a computer program product, which is implemented by a computer to implement the method of any of the foregoing method embodiments.
- the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
- the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be wired from a website site, computer, server or data center (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) to another website site, computer, server or data center.
- the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
- the usable medium can be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD) ))Wait.
- a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
- an optical medium eg, a high-density digital video disc (DVD)
- DVD high-density digital video disc
- SSD solid state disk
- a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
- an application running on a computing device and a computing device can be a component.
- One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers.
- these components can execute from various computer readable media having various data structures stored thereon.
- a component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.
- data packets eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems
- system and “network” are used interchangeably herein.
- the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
- the character "/" in this article generally indicates that the contextual object is an "or" relationship.
- B corresponding to A means that B is associated with A, and B can be determined according to A.
- determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
- the disclosed systems, devices, and methods may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of cells is only a logical function division.
- multiple units or components may be combined or integrated. Go to 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, or an electrical, mechanical or other form of connection.
- the units described as separate components may or may not be physically separate, 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 objectives of the embodiments of the present application.
- 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 above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
- Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
- a storage medium may be any available media that can be accessed by a computer.
- computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure.
- Any connection may suitably be a computer readable medium.
- the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave
- the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fixing of the associated media.
- a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disc, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.
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Abstract
Description
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Claims (82)
- 一种通信的方法,其特征在于,包括:终端设备接收索引指示信息,所述索引指示信息用于指示第一配置索引;所述终端设备根据所述第一配置索引确定所述第一配置索引对应的第一配置信息,所述第一配置信息用于指示第一组随机接入前导时机RO的时域资源或第二组RO的时域资源,其中,所述第一组RO的时域资源和第二组RO的时域资源位于随机接入配置周期中的第一时间单元中;所述终端设备确定一组RO的时域资源,所述一组RO的时域资源为所述第一组RO的时域资源或第二组RO的时域资源。
- 一种通信的方法,其特征在于,包括:网络设备生成索引指示信息,所述索引指示信息用于指示第一配置索引;所述网络设备向终端设备发送索引指示信息,所述索引指示信息用于所述终端设备根据所述第一配置索引确定所述第一配置索引对应的第一配置信息,所述第一配置信息用于指示第一组随机接入前导时机RO的时域资源或第二组RO的时域资源,以便于所述终端设备确定一组RO的时域资源,所述一组RO的时域资源为所述第一组RO的时域资源或第二组RO的时域资源;其中,所述第一组RO的时域资源和第二组RO的时域资源位于随机接入配置周期中的第一时间单元中。
- 一种装置,其特征在于,包括:处理单元和收发单元;所述收发单元用于接收索引指示信息,所述索引指示信息用于指示第一配置索引;所述处理单元用于根据所述第一配置索引确定所述第一配置索引对应的第一配置信息,所述第一配置信息用于指示第一组随机接入前导时机RO的时域资源或第二组RO的时域资源,其中,所述第一组RO的时域资源和第二组RO的时域资源位于随机接入配置周期中的第一时间单元中;所述处理单元用于确定一组RO的时域资源,所述一组RO的时域资源为所述第一组RO的时域资源或第二组RO的时域资源。
- 一种装置,其特征在于,包括:处理单元和收发单元;所述处理单元用于生成索引指示信息,所述索引指示信息用于指示第一配置索引;所述收发单元用于向终端设备发送索引指示信息,所述索引指示信息用于所述终端设备根据所述第一配置索引确定所述第一配置索引对应的第一配置信息,所述第一配置信息用于指示第一组随机接入前导时机RO的时域资源或第二组RO的时域资源,以便于所述终端设备确定一组RO的时域资源,所述一组RO的时域资源为所述第一组RO的时域资源或第二组RO的时域资源;其中,所述第一组RO的时域资源和第二组RO的时域资源位于随机接入配置周期中的第一时间单元中。
- 根据权利要求1或2所述的方法,或者,根据权利要求3或4所述的装置,其特征在于,所述第一配置信息包括以下信息中的至少一个:用于指示所述随机接入配置周期中的第一时间单元的第一指示信息,用于指示所述第一时间单元中的至少一个第二时间单元的第二指示信息,所述至少一个第二时间单元包括第一组第二时间单元和第二组第二时间单元,其中,所述第一组RO的时域资源属于所述第一组第二时间单元,所述第二组RO的时域资源属于所述第二组第二时间单元,用于指示所述第一组第二时间单元和所述第二组第二时间单元中每个第二时间单元包括的第三时间单元个数的第三指示信息,用于指示所述第三时间单元中RO个数的第四指示信息,以及用于指示所述第三时间单元中的RO的起始时域位置的第五指示信息。
- 根据权利要求5所述的方法,或者,根据权利要求5所述的装置,其特征在于,所述随机接入配置周期大于预设时长阈值,所述控制信道资源集的时域偏移量表示所述公共信号块检测窗内第一个公共信号块关联的控制信道资源集的起始时域位置与所述控制信道资源集所在的系统帧的起始位置之间的时长;用于指示所述第一时间单元的所述第一指示信息是根据所述控制信道资源集的时域偏移量确定的。
- 根据权利要求6所述的方法,或者,根据权利要求6所述的装置,其特征在于,在所述控制信道资源集的时域偏移量大于或等于预设偏移量阈值时,所述第一指示信息指示的所述第一时间单元在所述随机接入配置周期中的位置对应的序号为偶数;或者,在所述控制信道资源集的时域偏移量小于所述预设偏移量阈值时,所述第一指示信息指示的所述第一时间单元在所述随机接入配置周期中的位置对应的序号为奇数。
- 根据权利要求5至7中任一项所述的方法,或者,根据权利要求5至7中任一所述的装置,其特征在于,用于指示所述至少一个第二时间单元的所述第二指示信息是根据所述公共信号块的时域位置确定的。
- 根据权利要求8所述的方法,或者,根据权利要求8所述的装置,其特征在于,所述第二指示信息指示的所述至少一个第二时间单元位于所述第一时间单元中除所述公共信号块的可选时域位置之外的时域位置。
- 根据权利要求5至7中任一项所述的方法,或者,根据权利要求5至7中任一所述的装置,其特征在于,用于指示所述至少一个第二时间单元的所述第二指示信息是根据所述公共信号块的可选时域位置和/或所述第一时间单元的索引确定的。
- 根据权利要求10所述的方法,或者,根据权利要求10所述的装置,其特征在于,所述第一组第二时间单元位于所述第一时间单元的前半时域部分中除所述公共信号块的可选时域位置之外的时域位置;所述第二组第二时间单元位于所述第一时间单元的后半时域部分中除所述公共信号块的可选时域位置之外的时域位置;其中,所述终端设备确定一组RO的时域资源,包括:所述终端设备根据所述第一时间单元的索引确定所述一组RO的时域资源,其中,在所述第一时间单元的索引为偶数时,所述终端设备确定的一组RO的时域资源为所述第一组RO的时域资源;或者在所述第一时间单元的索引为奇数时,所述终端设备确定的一组 RO的时域资源为所述第二组RO的时域资源。
- 根据权利要求7或11所述的方法,或者,根据权利要求7或11所述的装置,其特征在于,所述预设偏移量阈值为2、2.5、5、7和7.5中的一个。
- 根据权利要求5至12中任一项所述的方法,或者,根据权利要求5至12中任一项所述的装置,其特征在于,用于指示所述第三时间单元中的RO的起始时域位置的所述第五指示信息是根据所述第三时间单元中所述控制信道资源集的时域位置确定的,其中,所述第三时间单元中的RO的起始时域位置位于所述第三时间单元中预设的一个控制信道资源集的时域位置之后;或者,所述第五指示信息指示的所述第三时间单元中的RO的起始时域位置为所述第三时间单元的起始时域位置或者所述第三时间单元中的预设时域位置。
- 根据权利要求13所述的方法,或者,根据权利要求13所述的装置,其特征在于,所述RO的起始时域位置表示RO占用所述第三时间单元中的至少一个第四时间单元中的首个第四时间单元在所述第三时间单元中的位置;在所述第三时间单元中的RO的起始时域位置位于所述第三时间单元中最后一个所述控制信道资源集的时域位置之后情况下,所述第三时间单元中的RO的起始时域位置对应的第四时间单元OFDM符号的序号的取值为以下三者中的一种:所述第三时间单元中的所述控制信道资源集的1倍时域长度;所述第三时间单元中的所述控制信道资源集的2倍时域长度;以及所述第三时间单元中所述控制信道资源集的起始第四时间单元的序号与所述控制信道资源集的1倍时域长度之和。
- 根据权利要求5至14中任一项所述的方法,或者,根据权利要求5至14中任一项所述的装置,其特征在于,用于指示所述第三时间单元中RO个数的第四指示信息是根据所述第三时间单元中的RO的起始时域位置,以及所述前导序列占用的时域资源长度大小确定的。
- 根据权利要求15所述的方法,或者,根据权利要求15所述的装置,其特征在于,所述第四指示信息指示的所述第三时间单元中RO个数,小于或者等于从所述RO的起始时域位置至所述第三时间单元的结束时域位置之间的时域资源长度与所述前导序列占用的时域资源长度的比值。
- 根据权利要求5至16中任一项所述的方法,或者,根据权利要求5至16中任一项所述的装置,其特征在于,所述第一时间单元为系统帧,所述第二时间单元为子帧或者0.25ms,所述第三时间单元为时隙。
- 根据权利要求1、5至17中任一项所述的方法,其特征在于,所述方法还包括:所述终端设备在确定的一组RO的时域资源发送前导序列。
- 根据权利要求1、5至17中任一项所述的方法,其特征在于,终端设备所确定的一组RO的时域资源中的一个或多个RO的时域资源与所述公共信号块的时域资源或所述控制信道资源集的时域资源冲突,所述方法还包括:所述终端设备不在与所述公共信号块的时域资源或所述控制信道资源集的时域资源冲突的一个或多个RO的时域资源发送所述前导序列。
- 根据权利要求1、5至17中任一项所述的方法,其特征在于,终端设备所确定的一组RO的时域资源中的一个或多个RO的时域资源位于半静态上下行配置的非上行资源上,所述方法还包括:所述终端设备在确定的一组RO的时域资源发送前导序列。
- 根据权利要求2、5至17中任一项所述的方法,其特征在于,所述方法还包括:所述网络设备接收所述终端设备在确定的一组RO的时域资源发送的前导序列。
- 根据权利要求2、5至17中任一项所述的方法,其特征在于,在终端设备所确定的一组RO的时域资源中的一个或多个RO的时域资源与所述公共信号块的时域资源或所述控制信道资源集的时域资源冲突时,所述方法还包括:所述网络设备不在与所述公共信号块的时域资源或所述控制信道资源集的时域资源冲突的一个或多个RO的时域资源上接收所述前导序列。
- 根据权利要求2、5至17中任一项所述的方法,其特征在于,在终端设备所确定的一组RO的时域资源中的一个或多个RO的时域资源位于半静态上下行配置的非上行资源上,所述方法还包括:所述网络设备接收所述终端设备在确定的一组RO的时域资源发送的前导序列。
- 根据权利要求3、5至17中任一项所述的装置,其特征在于,所述收发单元还用于在确定的一组RO的时域资源发送前导序列。
- 根据权利要求3、5至17中任一项所述的装置,其特征在于,在所述一组RO的时域资源中的一个或多个RO的时域资源与所述公共信号块的时域资源或所述控制信道资源集的时域资源冲突时,所述收发单元还用于不在与所述公共信号块的时域资源或所述控制信道资源集的时域资源冲突的一个或多个RO的时域资源发送所述前导序列。
- 根据权利要求3、5至17中任一项所述的装置,其特征在于,在所述一组RO的时域资源中的一个或多个RO的时域资源位于半静态上下行配置的非上行资源上,所述收发单元还用于在确定的一组RO的时域资源发送前导序列。
- 根据权利要求4至17中任一项所述的装置,其特征在于,所述收发单元还用于接收所述终端设备在确定的一组RO的时域资源发送的前导序列。
- 根据权利要求4至17中任一项所述的装置,其特征在于,在所述一组RO的时域资源中的一个或多个RO的时域资源与所述公共信号块的时域资源或所述控制信道资源集的时域资源冲突时,所述收发单元还用于不在与所述公共信号块的时域资源或所述控制信道资源集的时域资源冲突的一个或多个RO的时域资源上接收所述前导序列。
- 根据权利要求4至17中任一项所述的装置,其特征在于,在所述一组RO的时域资源中的一个或多个RO的时域资源位于半静态上下行配置的非上行资源上,所述收发单元还用于接收所述终端设备在确定的一组RO的时域资源发送的前导序列。
- 根据权利要求1或2所述的方法,或者,根据权利要求3或4所述的装置,其特征在于,所述第一组RO的时域资源或第二组RO的时域资源是根据所述控制信道资源集的时域偏移量和/或第一时间单元的索引确定的。
- 一种通信方法,其特征在于,包括:终端设备接收索引指示信息;所述终端设备根据所述索引指示信息确定第一配置信息,其中,所述第一配置信息用于指示至少一个随机接入前导时机RO的时域资源,所述时域资源包括所述RO在时隙或子帧中占用的首个OFDM符号,所述首个OFDM符号在所述时隙或所述子帧中的序号为所述时隙或者所述子帧中的控制信道资源集的2倍时域长度,或者,为所述时隙或所述子帧中的控制信道资源集的首个OFDM符号的序号与所述控制信道资源集的1倍时域长度之和。
- 一种通信方法,其特征在于,包括:网络设备生成索引指示信息;所述网络设备向终端设备发送所述索引指示信息,所述索引指示信息用于所述终端设备根据所述索引指示信息确定第一配置信息,其中,所述第一配置信息用于指示至少一个随机接入前导时机RO的时域资源,所述时域资源包括所述RO在时隙或子帧中占用的首个OFDM符号,所述首个OFDM符号在所述时隙或所述子帧中的序号为所述时隙或所述子帧中的控制信道资源集的2倍时域长度,或者,为所述时隙或所述子帧中的所述控制信道资源集的首个OFDM符号的序号与所述控制信道资源集的1倍时域长度之和。
- 根据权利要求31或32所述的方法,其特征在于,所述首个OFDM符号在所述时隙中的序号为2,6,8或者9。
- 根据权利要求31或32所述的方法,其特征在于,所述首个OFDM符号位于所述时隙或者所述子帧的起始时域位置。
- 根据权利要求31至34中任一项所述的方法,其特征在于,所述第一配置信息是根据控制信道资源集的时域信息确定的。
- 根据权利要求31至35中任一项所述的方法,其特征在于,所述首个OFDM符号位于所述时隙或所述子帧中预设的一个控制信道资源集的时域位置之后。
- 根据权利要求31至36中任一项所述的方法,其特征在于,所述首个OFDM符号位于所述时隙或所述子帧中的预设时域位置。
- 根据权利要求31、或33至37中任一项所述的方法,其特征在于,所述终端设备不在与公共信号块的时域资源冲突的一个或多个所述RO的时域资源发送前导序列。
- 根据权利要求32至37中任一项所述的方法,其特征在于,所述网络设备不在与公共信号块的时域资源冲突的一个或多个所述RO的时域资源上接收前导序列。
- 根据权利要求31至39中任一项所述的方法,其特征在于,其特征在于,所述索引指示信息是PRACH配置索引。
- 根据权利要求31至40中任一项所述的方法,其特征在于,其特征在于,所述时隙是PRACH时隙。
- 根据权利要求31至41中任一项所述的方法,其特征在于,其特征在于,所述第一配置信息还用于指示前导序列的格式;或者,系统帧号与随机接入配置周期的模的取值。
- 根据权利要求31至42中任一项所述的方法,其特征在于,其特征在于,所述时域资源还包括:所述时隙或者所述子帧的序号,和/或,一个时隙中所述RO的个数。
- 根据权利要求31至43中任一项所述的方法,其特征在于,所述方法适用于6GHz 以上频段。
- 根据权利要求31至44中任一项所述的方法,其特征在于,其特征在于,所述控制信道资源集对应的子载波间隔为60kHz或者120kHz。
- 根据权利要求31至45中任一项所述的方法,其特征在于,其特征在于,所述时域资源具体包括首个RO在时隙或子帧中占用的首个OFDM符号。
- 一种装置,其特征在于,包括:收发器,处理器和存储器,所述存储器收发器,用于接收索引指示信息;处理器,用于根据所述索引指示信息确定第一配置信息,其中,所述第一配置信息用于指示至少一个随机接入前导时机RO的时域资源,所述时域资源包括所述RO在时隙或子帧中占用的首个OFDM符号,所述首个OFDM符号在所述时隙或所述子帧中的序号为所述时隙或者所述子帧中的控制信道资源集的2倍时域长度,或者,为所述时隙或所述子帧中的控制信道资源集的首个OFDM符号的序号与所述控制信道资源集的1倍时域长度之和。
- 一种装置,其特征在于,包括:处理器,用于生成索引指示信息;收发器,用于发送所述索引指示信息,所述索引指示信息用于所述终端设备根据所述索引指示信息确定第一配置信息,其中,所述第一配置信息用于指示至少一个随机接入前导时机RO的时域资源,所述时域资源包括所述RO在时隙或子帧中占用的首个OFDM符号,所述首个OFDM符号在所述时隙或所述子帧中的序号为所述时隙或所述子帧中的控制信道资源集的2倍时域长度,或者,为所述时隙或所述子帧中的所述控制信道资源集的首个OFDM符号的序号与所述控制信道资源集的1倍时域长度之和。
- 一种装置,其特征在于,包括:收发单元,用于接收索引指示信息;处理单元,用于根据所述索引指示信息确定第一配置信息,其中,所述第一配置信息用于指示至少一个随机接入前导时机RO的时域资源,所述时域资源包括所述RO在时隙或子帧中占用的首个OFDM符号,所述首个OFDM符号在所述时隙或所述子帧中的序号为所述时隙或者所述子帧中的控制信道资源集的2倍时域长度,或者,为所述时隙或所述子帧中的控制信道资源集的首个OFDM符号的序号与所述控制信道资源集的1倍时域长度之和。
- 一种装置,其特征在于,包括:处理单元,用于生成索引指示信息;收发单元,用于发送所述索引指示信息,所述索引指示信息用于所述终端设备根据所述索引指示信息确定第一配置信息,其中,所述第一配置信息用于指示至少一个随机接入前导时机RO的时域资源,所述时域资源包括所述RO在时隙或子帧中占用的首个OFDM符号,所述首个OFDM符号在所述时隙或所述子帧中的序号为所述时隙或所述子帧中的控制信道资源集的2倍时域长度,或者,为所述时隙或所述子帧中的所述控制信道资源集的首个OFDM符号的序号与所述控制信道资源集的1倍时域长度之和。
- 根据权利要求47至50中任一项所述的装置,其特征在于,所述首个OFDM符号在所述时隙中的序号为2,6,8或者9。
- 根据权利要求47至50中任一项所述的装置,其特征在于,所述首个OFDM符号位于所述时隙或者所述子帧的起始时域位置。
- 根据权利要求47至52中任一项所述的装置,其特征在于,所述第一配置信息是根据控制信道资源集的时域信息确定的。
- 根据权利要求47至53中任一项所述的装置,其特征在于,所述首个OFDM符号位于所述时隙或所述子帧中预设的一个控制信道资源集的时域位置之后。
- 根据权利要求47至54中任一项所述的装置,其特征在于,所述首个OFDM符号位于所述时隙或所述子帧中的预设时域位置。
- 根据权利要求47、49,或51至55中任一项所述的装置,其特征在于,所述终端设备不在与公共信号块的时域资源冲突的一个或多个所述RO的时域资源发送前导序列。
- 根据权利要求48、50至55中任一项所述的装置,其特征在于,所述网络设备不在与公共信号块的时域资源冲突的一个或多个所述RO的时域资源上接收前导序列。
- 根据权利要求47至57中任一项所述的装置,其特征在于,其特征在于,所述索引指示信息是PRACH配置索引。
- 根据权利要求47至58中任一项所述的装置,其特征在于,其特征在于,所述时隙是PRACH时隙。
- 根据权利要求47至59中任一项所述的装置,其特征在于,其特征在于,所述第一配置信息还用于指示前导序列的格式;或者,系统帧号与随机接入配置周期的模的取值。
- 根据权利要求47至60中任一项所述的装置,其特征在于,其特征在于,所述时域资源还包括:所述时隙或者所述子帧的序号,和/或,一个时隙中所述RO的个数。
- 根据权利要求47至61中任一项所述的装置,其特征在于,所述装置适用于6GHz以上频段。
- 根据权利要求47至62中任一项所述的装置,其特征在于,其特征在于,所述控制信道资源集对应的子载波间隔为60kHz或者120kHz。
- 根据权利要求47至63中任一项所述的装置,其特征在于,其特征在于,所述时域资源具体包括首个RO在时隙或子帧中占用的首个OFDM符号。
- 一种通信的方法,其特征在于,包括:终端设备接收索引指示信息,所述索引指示信息用于指示第一配置索引;所述终端设备根据所述第一配置索引确定所述第一配置索引对应的第一配置信息,其中,所述第一配置信息用于指示随机接入前导时机RO的时域资源,所述第一配置信息是根据控制信道资源集的时域信息确定的。
- 一种通信的方法,其特征在于,包括:网络设备生成索引指示信息,所述索引指示信息用于指示第一配置索引;所述网络设备向终端设备发送所述索引指示信息,所述索引指示信息用于所述终端设备根据所述第一配置索引确定所述第一配置索引对应的第一配置信息,其中,所述第一配置信息用于指示随机接入前导时机RO的时域资源,所述第一配置信息是根据控制信道资源集的时域信息确定的。
- 一种装置,其特征在于,包括:处理单元和收发单元;所述收发单元用于接收索引指示信息,所述索引指示信息用于指示第一配置索引;所述处理单元用于根据所述第一配置索引确定所述第一配置索引对应的第一配置信息,其中,所述第一配置信息用于指示随机接入前导时机RO的时域资源,所述第一配置信息是根据控制信道资源集的时域信息确定的。
- 一种装置,其特征在于,包括:处理单元和收发单元;所述处理单元用于生成索引指示信息,所述索引指示信息用于指示第一配置索引;所述收发单元用于向终端设备发送所述索引指示信息,所述索引指示信息用于所述终端设备根据所述第一配置索引确定所述第一配置索引对应的第一配置信息,其中,所述第一配置信息用于指示随机接入前导时机RO的时域资源,所述第一配置信息是根据控制信道资源集的时域信息确定的。
- 根据权利要求65或66所述的方法,或者,根据权利要求67或68所述的装置,其特征在于,所述时域资源包括所述RO的首个OFDM符号在所述时隙中的序号为所述时隙中的控制信道资源集的2倍时域长度。
- 根据权利要求65或66所述的方法,或者,根据权利要求67或68所述的装置,其特征在于,所述RO的首个OFDM符号在所述时隙中的序号为所述时隙中的所述控制信道资源集的首个OFDM符号的序号与所述控制信道资源集的1倍时域长度之和。
- 根据权利要求69所述的方法,或者,根据权利要求69所述的装置,其特征在于,所述RO的首个OFDM符号在所述时隙中的序号为2,6或者8。
- 根据权利要求70所述的方法,或者,根据权利要求70所述的装置,其特征在于,所述RO的首个OFDM符号在所述时隙中的序号为9。
- 根据权利要求65或66所述的方法,或者,根据权利要求67或68所述的装置,其特征在于,所述RO的首个OFDM符号位于所述时隙中预设的一个控制信道资源集的时域位置之后。
- 根据权利要求65或66所述的方法,或者,根据权利要求67或68所述的装置,其特征在于,所述RO的首个OFDM符号位于所述时隙中的预设时域位置。
- 根据权利要求65或66所述的方法,或者,根据权利要求67或68所述的装置,其特征在于,所述RO的首个OFDM符号位于所述时隙的起始时域位置。
- 一种装置,其特征在于,用于执行如权利要求1、2、5至23、31至46、65、66、69至75中任一项所述的方法。
- 一种装置,其特征在于,包括:处理器,所述处理器与存储器耦合;存储器,用于存储计算机程序;处理器,用于执行所述存储器中存储的计算机程序,以使得所述装置执行如权利要求1、2、5至23、31至46、65、66、69至75中任一项所述的方法。
- 一种可读存储介质,其特征在于,包括程序或指令,当所述程序或指令在计算机上运行时,权利要求1、2、5至23、31至46、65、66、69至75中任意一项所述的方法被执行。
- 一种计算机程序产品,其特征在于,所述计算机程序产品被计算机执行时,用于实现权利要求1、2、5至23、31至46、65、66、69至75任一项所述的方法。
- 一种处理装置,其特征在于,包括处理器和接口,所述处理装置用于执行权利要求1、2、5至23、31至46、65、66、69至75任一项所述的方法。
- 一种处理装置,其特征在于,包括存储器,处理器和接口,所述存储器用于存储计算机程序,所述处理器用于从存储器中调用并运行所述计算机程序,使得所述处理装置用于执行权利要求1、2、5至23、31至46、65、66、69至75任一项所述的方法。
- 一种系统,其特征在于,包括:如权利要求3所述的装置和如权利要求4所述的装置;或,如权利要求5至17、24至30中任一项所述的装置;或,如权利要求47或49中任一项所述的装置和如权利要求48或50中任一项所述的装置;或,如权利要求51至64中任一项所述的装置;或,如权利要求67所述的装置和如权利要求68所述的装置;或,如权利要求69至75中任一项所述的装置。
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WO2022022592A1 (zh) * | 2020-07-31 | 2022-02-03 | 维沃移动通信有限公司 | 确定目标时域位置的方法、装置及通信设备 |
CN114451059A (zh) * | 2019-09-30 | 2022-05-06 | 高通股份有限公司 | 用于全双工中的同步信号和随机接入通信的装置和方法 |
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US11546944B2 (en) | 2023-01-03 |
KR20200116510A (ko) | 2020-10-12 |
CA3091093A1 (en) | 2019-08-22 |
CN110167164A (zh) | 2019-08-23 |
KR102519984B1 (ko) | 2023-04-11 |
US20210084687A1 (en) | 2021-03-18 |
EP3742848A4 (en) | 2021-02-17 |
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