WO2019096312A1 - 通信方法及装置 - Google Patents

通信方法及装置 Download PDF

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Publication number
WO2019096312A1
WO2019096312A1 PCT/CN2018/116262 CN2018116262W WO2019096312A1 WO 2019096312 A1 WO2019096312 A1 WO 2019096312A1 CN 2018116262 W CN2018116262 W CN 2018116262W WO 2019096312 A1 WO2019096312 A1 WO 2019096312A1
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WO
WIPO (PCT)
Prior art keywords
random access
access resource
resource
frequency
offset value
Prior art date
Application number
PCT/CN2018/116262
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English (en)
French (fr)
Inventor
颜矛
黄煌
邵华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020207017318A priority Critical patent/KR102322418B1/ko
Priority to CA3084560A priority patent/CA3084560C/en
Priority to EP18877832.8A priority patent/EP3713364B1/en
Priority to EP22200945.8A priority patent/EP4188028A1/en
Priority to CN201880074676.1A priority patent/CN111373831B/zh
Priority to BR112020009821-3A priority patent/BR112020009821A2/pt
Publication of WO2019096312A1 publication Critical patent/WO2019096312A1/zh
Priority to US16/875,717 priority patent/US11582806B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/004Transmission of channel access control information in the uplink, i.e. towards network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a receiving method, and a related device for transmitting a random access signal.
  • next-generation communication systems eg, NR (new radio) new air ports
  • the beam is communicated in a manner, and before the base station communicates with the terminal, uplink synchronization and downlink synchronization are first required.
  • the base station sends a downlink synchronization signal by using multiple transmit beams, and the terminal uses one or more receive beams to receive and detect the downlink synchronization signal, and determine the optimal downlink transmit beam and receive beam pair, downlink time, and system. information.
  • the uplink synchronization is completed by means of a random access procedure, and the terminal first sends a random access signal, and the base station detects the random access signal, obtains the best uplink transmit beam, the receive beam pair, the uplink time, and the like, and implements the uplink of the base station and the terminal. Synchronize.
  • the technical problem to be solved by the embodiments of the present invention is to provide a method, a receiving method, and a related device for a random access signal, which implement a frequency position for determining a random access resource in a next generation communication system.
  • an embodiment of the present invention provides a method for transmitting a random access signal, including: receiving, by a terminal device, configuration information from a network device, where the configuration information includes an initial frequency offset value, a random access resource configuration period, and an uplink channel. At least one of the bandwidth, the bandwidth of the random access resource, the duration of the random access resource, and the frequency index of the random access resource, the terminal device determines the frequency location of the random access resource according to the configuration information, and the terminal device is in the random access resource. A random access signal is transmitted to the network device at the frequency location.
  • the random access resource is a time-frequency resource used for transmitting a random access preamble, and the random access resource is a time-frequency resource set composed of a time domain resource and a frequency domain resource, and the random access resource is occupied in the time domain. A certain amount of time, as well as occupying a certain amount of bandwidth in the frequency domain.
  • the random access resource configuration pattern indicates a location distribution of all available random access resources in the specified time-frequency resource set, and the random access resource configuration period is a time length of the time-frequency resource set, and the time length can be a system frame,
  • the number of subframes, time slots, mini-slots, or OFDM (orthogonal frequency division multiplexing) symbols indicates that the random access resource configuration pattern periodically appears.
  • the frequency location of the random access resource indicates the absolute location of the random access resource in the frequency domain, and the frequency location of the random access resource is RB (resource block, resource block) or RB group (resource block group). .
  • the frequency location of the random access resource may be represented by the starting RB position or the intermediate RB position of the random access resource.
  • the initial frequency offset value indicates the frequency start position of the first available random access resource in the random access resource configuration pattern, for example, represented by the starting RB position.
  • the uplink channel bandwidth represents the system bandwidth for transmitting uplink data, which can be expressed in terms of the number of RBs.
  • the bandwidth of the random access resource indicates the bandwidth occupied by the random access resource in the frequency domain.
  • the bandwidth of the random access resource may be represented by the number of RBs.
  • the time of the random access resource indicates the length of time of the random access resource in the time domain, and the length of the time may be represented by the number of subframes, the number of slots, or the number of OFDM symbols; or the time of the random access resource indicates that the random access resource is located.
  • Absolute time position including the system frame number, the subframe number in the system frame, the slot number in the subframe, the OFDM symbol in the slot, the time position in the OFDM symbol (the basic time unit is the granularity); or the random connection
  • the relative location of the random access resource configuration period in which the resource is located that is, the random access resource exists in T time positions in the random access resource configuration period, and the time of the random access resource refers to the relative position 0, 1, ..., , T-1.
  • the frequency index of the random access resource indicates the index of the random access resource in the frequency domain.
  • the terminal device selects a random access preamble from the random access preamble set to send the random access preamble at the frequency position of the determined random access resource, and the method for selecting the random access preamble may refer to the prior art. It is stated that this application is not limited.
  • each parameter in the configuration information may be directly notified to the terminal device by the network device, or the network device sends the index of the parameter to the terminal device.
  • Each parameter in the configuration information may be carried in a message or may be carried in multiple messages.
  • the network device passes RRC (radio resource control) signaling, SI (system information), RMSI (remaining minimum system information), NR SIB1 (new radio system information block type 1, New air interface system information block type 1), MAC-CE (media access control-control element) signaling, DCI (downlink control information), PBCH (physical broadcast channel) Or the time at which at least one of the PDCCH order (physical downlink control channel command) transmits the random access resource, and the time of the random access resource may be an absolute time or an index of time (for example, a system frame number) , the subframe number in the system frame, the slot number in the subframe, and the OFDM symbol in the slot).
  • RRC radio resource control
  • SI system information
  • RMSI replacement minimum system information
  • the PRACH configuration period (PRACH period/PRACH density) is also referred to as a random access period.
  • the random access resource configuration period includes multiple time, frequency, preamble or sequence random access resources, and these resources form a random access resource configuration pattern.
  • the random access resource configuration period is also a time interval in which the random access resource configuration pattern is repeated.
  • the random access resources in a random access resource configuration period are associated with all actually transmitted downlink signals in a downlink signal set. It can be understood that the random access resource associated with the downlink signal repeatedly appears in the length of the random access resource configuration period.
  • the terminal device according to the initial frequency offset value configured by the network device, the random access resource configuration period, the uplink channel bandwidth, the bandwidth of the random access resource, the time of the random access resource, and the frequency index of the random access resource. At least one of determining a frequency location of the random access resource, the terminal device transmitting a random access signal to the network device at the determined frequency location, preventing the terminal device from blindly attempting to randomly access the resource when transmitting the random access signal, and improving the randomness The efficiency of the access process.
  • the configuration information also includes: a frequency hopping offset value.
  • the random access resources in the random access resource configuration pattern are equally spaced in the frequency domain, and the frequency hopping offset value represents a frequency position difference between two adjacent random access resources in the same time.
  • the terminal device determines the frequency location of the random access resource corresponding to the random access preamble according to the configuration information, and specifically includes:
  • F RB is the frequency position of random access resources, with RB as the granularity.
  • f start is an initial frequency offset value, which can be represented by the starting RB position of the first available random access resource in the random access resource configuration pattern.
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the The frequency index of the random access resource.
  • the terminal device sends a random access signal to the network device by using frequency hopping, so that the terminal device can implement frequency diversity and improve the reliability of random access signal transmission.
  • the terminal device determines the frequency location of the random access resource according to the configuration information, and specifically includes:
  • the terminal device determines the frequency location of the random access resource according to the configuration information, and specifically includes:
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource
  • f offset is the Frequency hopping offset value.
  • T RA is the absolute time length of the random access resource configuration period
  • t RA is the absolute time at which the random access resource is located, for example, the random access resource configuration period.
  • the absolute time length is one of 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, 320ms, 640ms.
  • f RA is a frequency index in the initial access uplink channel bandwidth portion where the random access resource is located; or f RA is a frequency index in the uplink channel bandwidth where the random access resource is located. ; or f start is the default value of 0.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access resource configuration pattern.
  • the at least one downlink signal that is actually sent is a signal that the network device uses for downlink synchronous transmission, and the downlink signal may be a synchronization signal block (SS block) and a channel state information reference signal (CSI-). At least one of RS).
  • the SS block may correspond to one or more OFDM symbols.
  • the SS block includes at least one of the following: a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel block (PBCH), and a demodulation reference signal (demodulation reference).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel block
  • demodulation reference demodulation reference
  • Signal, DMRS SS block can also be called SS/PBCH block. Multiple signals in the SS block or SS/PBCH block may be transmitted in the same antenna port.
  • the mapping relationship is also referred to as an association relationship.
  • the at least one downlink signal that is actually sent may be associated with multiple random access resources, or the at least one downlink signal that is actually sent has a mapping relationship with only one random access resource.
  • the method by which the terminal device determines the random access resource is different according to the mapping relationship.
  • the configuration information further includes: a format of the random access preamble and/or the number of at least one signal actually transmitted.
  • the configuration information further includes: a frame structure type, uplink/downlink configuration information, or a duplex mode.
  • the frame structure type includes a TDD frame or an FDD frame
  • the uplink/downlink configuration information includes an uplink time slot, a downlink time slot, an undetermined number of time slots, and period information
  • the duplex mode includes full duplex, TDD, or FDD.
  • the application provides a method for receiving a random access signal, including:
  • the network device sends the configuration information to the terminal device, where the configuration information includes at least one of an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of the random access resource, and a frequency index of the random access resource,
  • the network device determines a frequency location of the random access resource according to the configuration information, and the network device receives the random access signal from the terminal device at a frequency location of the random access resource.
  • each parameter in the configuration information may be directly notified to the terminal device by the network device, or the network device sends the index of the parameter to the terminal device.
  • Each parameter in the configuration information can be carried in one message or in multiple messages.
  • the time when the network device sends the random access resource by using at least one of RRC signaling, SI, RMSI, NR SIB1, MAC-CE signaling, DCI (downlink control information), PBCH or PDCCH order, random
  • the time of accessing the resource may be an absolute time or an index of time (for example: system frame number, subframe number in the system frame, slot number in the subframe, OFDM symbol in the slot).
  • the network device determines the frequency of the random access resource according to at least one of an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of a random access resource, and a frequency index of a random access resource. The location, so that the network device can receive the random access signal sent by the terminal device on the random access resource, avoiding the problem of beam mismatch, and improving the efficiency of the random access signal.
  • the configuration information also includes: a frequency hopping offset value.
  • the network device determines the frequency location of the random access resource according to the configuration information, and specifically includes:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, and f RA is the frequency index of the random access resource.
  • the network device determines the frequency location of the random access resource according to the configuration information, and specifically includes:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, and f RA is the frequency index of the random access resource.
  • the network device determines the frequency location of the random access resource according to the configuration information, and specifically includes:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, f RA is the frequency index of the random access resource, and f offset is the hop Frequency offset value.
  • the network device determines the frequency location of the random access resource according to the configuration information, and specifically includes:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, f RA is the frequency index of the random access resource, and f offset is the hop Frequency offset value.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of at least one signal actually transmitted.
  • the configuration information further includes at least one of a system frame structure, an uplink and downlink configuration information, and a duplex mode corresponding to the random access signal.
  • the application provides a method for sending a random access signal, including:
  • the terminal device determines the frequency location of the random access resource according to the subcarrier offset value of the random access resource and the resource block location of the random access resource, and the terminal device sends the random access to the network device at the frequency location where the random access resource is located. signal.
  • the frequency location of the random access resource indicates the absolute location of the random access resource in the frequency domain, and the subcarrier or RE (resource element) is used as the granularity.
  • the resource block location of the random access resource indicates the location of the resource block where the random access resource is located, and the resource block location of the random access resource block is a coarse-grained frequency location, and cannot accurately represent the random access resource frequency location, for example: random
  • the resource block location of the access resource indicates the starting RB location of the random access resource or the location of the intermediate RB.
  • the subcarrier offset value represents a subcarrier offset relative to a resource block location of the random access resource, and the subcarrier offset value may be a positive value or a negative value, and the subcarrier offset value may also be referred to as an RE. Offset value.
  • the terminal device determines the frequency location of the random access resource according to the resource block location and the subcarrier offset value of the random access resource, so that the terminal device can use the frequency resource by using the subcarrier or the RE as the granularity to improve the utilization of the frequency resource. rate.
  • the terminal device determines the frequency location of the random access resource according to the subcarrier offset value of the random access resource and the resource block location of the random access resource, which specifically includes:
  • the F SC is a frequency location of a random access resource, and is a sub-carrier or an RE.
  • the F RB is a resource block location of a random access resource, and is RB or RB group granularity. Is the number of subcarriers contained in one RB. M is the subcarrier offset value.
  • the subcarrier offset value is the same as the offset value of the at least one downlink signal actually transmitted; or
  • the subcarrier offset value is related to a frequency index and/or a carrier frequency of the first available random access resource in the random access resource configuration pattern;
  • the subcarrier offset value is indicated by the indication information.
  • the subcarrier offset value is a pre-stored or pre-configured value.
  • the indication information includes at least one of RRC signaling, SI, RMSI, NR SIB1, MAC-CE signaling, DCI (downlink control information), PBCH or PDCCH order.
  • the network device indicates the acquisition mode of the subcarrier offset value through RRC signaling, and then indicates the specific offset value through the DCI.
  • the method before the terminal device determines the frequency location of the random access resource according to the subcarrier offset value and the resource block location of the random access resource, the method further includes:
  • the terminal device receives configuration information from the network device, where the configuration information includes: an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of a random access resource, a time of a random access resource, and a random access resource. At least one of the frequency indexes.
  • the terminal device determines a resource block location of the random access resource according to the configuration information.
  • the method before the terminal device determines the frequency location of the random access resource according to the subcarrier offset and the resource block location of the random access resource, the method further includes:
  • the terminal device receives a random access resource block location from the network device.
  • the configuration information also includes: a frequency hopping offset value.
  • each parameter in the configuration information may be directly notified to the terminal device by the network device, or the network device sends the index of the parameter to the terminal device.
  • Each parameter in the configuration information can be carried in one message or in multiple messages.
  • the time when the network device sends the random access resource by using at least one of RRC signaling, SI, RMSI, NR SIB1, MAC-CE signaling, DCI (downlink control information), PBCH or PDCCH order, random
  • the time of accessing the resource may be an absolute time or an index of time (for example: system frame number, subframe number in the system frame, slot number in the subframe, OFDM symbol in the slot).
  • the terminal device determines the resource block location of the random access resource according to the configuration information, which specifically includes:
  • mod means modulo operation
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the resource block location of the random access resource according to the configuration information, which specifically includes:
  • mod means modulo operation
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the resource block location of the random access resource according to the configuration information, which specifically includes:
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource
  • f offset is the Frequency hopping offset value.
  • the configuration information further includes a mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a format of the random access preamble corresponding to the random access signal and/or a quantity of the at least one downlink signal actually transmitted.
  • the configuration information further includes at least one of a frame structure, an uplink and downlink configuration information, and a duplex mode.
  • an embodiment of the present invention provides a method for receiving a random access signal, including:
  • the network device determines a frequency location of the random access resource according to the subcarrier offset value and the resource block location of the random access resource, and the network device receives the random access signal from the terminal device at the frequency location of the random access resource.
  • the network device determines the frequency location of the random access resource according to the subcarrier offset value and the resource block location of the random access resource, and specifically includes:
  • the F SC is a frequency location of the random access resource
  • the F RB is a resource block location where the random access resource is located.
  • M is the subcarrier offset value.
  • the subcarrier offset value is the same as the offset value of the at least one downlink signal actually transmitted; or
  • the subcarrier offset value is related to a frequency index and/or a carrier frequency of the first available random access resource in the random access resource configuration pattern;
  • the subcarrier offset value is indicated by indication information that is not used to indicate an offset value of the at least one downlink signal actually transmitted; or
  • the subcarrier offset value is a pre-stored or pre-configured value.
  • the indication information includes at least one of RRC signaling, SI, RMSI, NR SIB1, MAC-CE signaling, DCI, PBCH, or PDCCH order.
  • the network device indicates the acquisition mode of the subcarrier offset value through RRC signaling, and then indicates the specific offset value through the DCI.
  • the method before the network device determines the frequency location of the random access resource according to the subcarrier offset value and the resource block location of the random access resource, the method further includes:
  • the network device sends the configuration information to the terminal device; the configuration information includes: an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of the random access resource, a time of the random access resource, and a frequency of the random access resource. At least one of the indexes.
  • the method before the network device determines the frequency location of the random access resource according to the subcarrier offset value and the resource block location of the random access resource, the method further includes:
  • the network device determines a resource block location of the random access resource according to the configuration information, where the configuration information includes an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of the random access resource, and a time of the random access resource. And at least one of a frequency index of the random access resource; the network device sends the resource block location of the random access resource to the terminal device.
  • the configuration information also includes: a frequency hopping offset value.
  • each parameter in the configuration information may be directly notified to the terminal device by the network device, or the network device sends the index of the parameter to the terminal device.
  • Each parameter in the configuration information can be carried in one message or in multiple messages.
  • the time when the network device sends the random access resource by using at least one of RRC signaling, SI, RMSI, NR SIB1, MAC-CE signaling, DCI (downlink control information), PBCH or PDCCH order, random
  • the time of accessing the resource may be an absolute time or an index of time (for example: system frame number, subframe number in the system frame, slot number in the subframe, OFDM symbol in the slot).
  • the network device determines the resource block location of the access resource according to the configuration information, and specifically includes:
  • mod means modulo operation
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the network device determines the resource block location of the random access resource according to the configuration information, and specifically includes:
  • mod means modulo operation
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the network device determines the resource block location of the random access resource according to the configuration information, and specifically includes:
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource
  • f offset is the Frequency hopping offset value.
  • T RA is the absolute time length of the random access resource configuration period
  • t RA is the absolute time at which the random access resource is located, for example, the random access resource configuration period.
  • the absolute time length is one of 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, 320ms, 640ms.
  • f RA is a frequency index in the initial access uplink channel bandwidth portion where the random access resource is located; or f RA is a frequency index in the uplink channel bandwidth where the random access resource is located. ; or f start is the default value of 0.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of at least one downlink signal actually transmitted.
  • the configuration information further includes at least one of a frame structure, an uplink and downlink configuration information, and a duplex mode.
  • the application provides a sending apparatus for a random access signal, including: a receiving unit, a processing unit, and a sending unit.
  • the receiving unit is configured to receive configuration information from the network device, where the configuration information includes an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of the random access resource, and the random access resource. At least one of time, a frequency index of the random access resource.
  • the processing unit is configured to determine a frequency location of the random access resource according to the configuration information.
  • the sending unit is configured to send a random access signal to the network device at a frequency location of the random access resource.
  • the configuration information further includes: a frequency hopping offset value.
  • the processing unit is configured to determine a frequency location of the random access resource according to the configuration information, specifically:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, and f RA is the frequency index of the random access resource.
  • the processing unit is configured to determine a frequency location of the random access resource according to the configuration information, specifically:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, and f RA is the frequency index of the random access resource.
  • the processing unit is configured to determine a frequency location of the random access resource according to the configuration information, specifically:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, f RA is the frequency index of the random access resource, and f offset is the hop Frequency offset value.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of at least one downlink signal actually transmitted.
  • the configuration information further includes: at least one of a system frame structure, an uplink and downlink configuration information, and a duplex mode corresponding to the random access preamble.
  • the application provides a receiving apparatus for a random access signal, including: a sending unit, a processing unit, and a receiving unit.
  • the sending unit is configured to send configuration information to the terminal device, where the configuration information includes: an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of the random access resource, and the random access At least one of the frequency indexes of the resources.
  • the processing unit is configured to determine a frequency location of the random access resource according to the configuration information.
  • the receiving unit is configured to receive a random access signal from the terminal device at a frequency location of the random access resource.
  • the configuration information further includes: a frequency hopping offset value.
  • the processing unit is configured to determine a frequency location of the random access resource according to the configuration information, specifically:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, and f RA is the frequency index of the random access resource.
  • the processing unit is configured to determine a frequency location of the random access resource according to the configuration information, specifically:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, and f RA is the frequency index of the random access resource.
  • the processing unit is configured to determine a frequency location of the random access resource according to the configuration information, specifically:
  • N RB For the uplink channel bandwidth, N RA is the bandwidth of the random access resource, t RA is the time of the random access resource, f RA is the frequency index of the random access resource, and f offset is the hop Frequency offset value.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of at least one downlink signal actually transmitted.
  • the configuration information further includes: at least one of a system frame structure, an uplink and downlink configuration information, and a duplex mode corresponding to the random access preamble.
  • the application provides a sending apparatus for a random access signal, including: a processing unit and a sending unit.
  • the processing unit is configured to determine a frequency location of the random access resource according to a subcarrier offset value and a resource block location of the random access resource.
  • the sending unit is configured to send the random access signal to the network device at a frequency location of the random access resource.
  • the processing unit is configured to determine a frequency location of the random access resource according to a subcarrier offset value and a resource block location of the random access resource, and specifically includes:
  • the F SC is a frequency location of the random access resource
  • the F RB is a resource block location where the random access resource is located.
  • M is the subcarrier offset value.
  • the subcarrier offset value is the same as the offset value of the at least one downlink signal actually transmitted; or
  • the subcarrier offset value is related to a frequency index and/or a carrier frequency of a first random access resource of a random access resource configuration pattern corresponding to the random access resource;
  • the subcarrier offset value is indicated by the following indication information:
  • Radio resource control RRC signaling system information SI, remaining system information RMSI, new air interface system information block 1NR SIB1, MAC-CE signaling, downlink control information DCI, physical broadcast channel PBCH, PDCCH order.
  • the terminal device further includes a receiving unit, configured to receive configuration information from the network device, where the configuration information includes an initial frequency offset value, a random access resource configuration period, and an uplink channel. At least one of a bandwidth, a bandwidth of the random access resource, a time of the random access resource, and a frequency index of the random access resource;
  • the processing unit is further configured to determine, according to the configuration information, a resource block location of the random access resource; or
  • the apparatus further includes: a receiving unit, configured to receive a resource block location of the random access resource from the network device.
  • the configuration information further includes: a frequency hopping offset value.
  • the processing unit is configured to determine a resource block location of the random access resource according to the configuration information, and specifically includes:
  • mod means modulo operation
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit is configured to determine a resource block location of the random access resource according to the configuration information, and specifically includes:
  • mod means modulo operation
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit is configured to determine a resource block location of the random access resource according to the configuration information, and specifically includes:
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource
  • f offset is the Frequency hopping offset value.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of the at least one downlink signal actually sent.
  • the configuration information further includes at least one of a frame structure, uplink and downlink configuration information, and a duplex mode.
  • the present application provides a receiving apparatus for a random access signal, including: a processing unit and a receiving unit.
  • the processing unit is configured to determine a frequency location of the random access resource according to a resource block location and a subcarrier offset of the random access resource.
  • the receiving unit is configured to receive a random access signal from the terminal device at a frequency location of the random access resource.
  • the processing unit is configured to determine a frequency location of the random access resource according to the subcarrier offset value and the resource block location of the random access resource, and specifically includes:
  • the F SC is a frequency location of the random access resource
  • the F RB is a resource block location where the random access resource is located.
  • M is the subcarrier offset value.
  • the subcarrier offset value is the same as the offset value of the at least one downlink signal actually transmitted; or
  • the subcarrier offset value is related to a frequency index and/or a carrier frequency of a first random access resource of a random access resource configuration pattern corresponding to the random access resource;
  • the subcarrier offset value is indicated by the following indication information:
  • Radio resource control RRC signaling system information SI, remaining system information RMSI, new air interface system information block 1NR SIB1, MAC-CE signaling, downlink control information DCI, physical broadcast channel PBCH, PDCCH order;
  • the indication information is not used to indicate an offset value of the at least one downlink signal that is actually sent.
  • the device further includes a sending unit, where the sending unit is configured to send configuration information to the terminal device, where the configuration information includes: an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, and random access. At least one of a bandwidth of the resource, a time of the random access resource, and a frequency index of the random access resource; or
  • the device further includes a sending unit, where the processing unit is further configured to determine a resource block location of the random access resource, where the configuration information includes an initial frequency offset value, a random access resource configuration period, and an uplink channel. At least one of a bandwidth, a bandwidth of the random access resource, a time of the random access resource, and a frequency index of the random access resource, and a sending unit, configured to send the resource block location of the random access resource to the terminal device.
  • the configuration information also includes: a frequency hopping offset value.
  • the processing unit is configured to determine a resource block location of the access resource according to the configuration information, and specifically includes:
  • mod means modulo operation
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit is configured to determine a resource block location of the random access resource according to the configuration information, and specifically includes:
  • mod means modulo operation
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit is configured to determine a resource block location of the random access resource according to the configuration information, and specifically includes:
  • F RB is the resource block position of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource
  • f offset is the Frequency hopping offset value.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of at least one downlink signal actually transmitted.
  • the configuration information further includes at least one of a frame structure, an uplink and downlink configuration information, and a duplex mode.
  • the present application provides a transmitting apparatus for a random access signal, the apparatus comprising a processor and a memory, wherein the memory is used to store a program, and the processor calls a program stored in the memory to execute the method provided by the first aspect of the present application. .
  • the present application provides a receiving apparatus for a random access signal, the apparatus comprising a processor and a memory, wherein the memory is used to store a program, and the processor calls a program stored in the memory to execute the method provided by the second aspect of the present application. .
  • the application provides a random access transmitting device, the device includes a processor and a memory, the memory is used to store a program, and the processor calls a memory stored program to perform the method provided by the third aspect of the present application. .
  • the present application provides a receiving apparatus for a random access signal, the apparatus comprising a processor and a memory, wherein the memory is used to store a program, and the processor calls a program stored in the memory to perform the fourth aspect of the present application. method.
  • the application provides a computer storage medium comprising a program designed to perform the above aspects.
  • the embodiment of the present application provides a computer program product, the computer program comprising instructions, when the computer program is executed by a computer, to enable the computer to perform the information of any one of the foregoing first or fourth aspects.
  • the process in the sending method is not limited to:
  • FIG. 1 is a network architecture diagram of a communication system according to an embodiment of the present invention.
  • 2a is a schematic flowchart of a method for transmitting a random access signal according to an embodiment of the present invention
  • 2b is a schematic diagram of a random access resource configuration pattern according to an embodiment of the present invention.
  • 2c is another schematic diagram of a random access resource configuration pattern according to an embodiment of the present invention.
  • 2d is a schematic diagram of a frequency hopping transmission according to an embodiment of the present invention.
  • 2e is a location distribution diagram of transmitting a downlink signal according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of another method for sending a random access signal according to an embodiment of the present disclosure
  • FIG. 3b is a schematic diagram of a frequency domain location of a random access resource according to an embodiment of the present disclosure
  • FIG. 4 is another schematic flowchart of a method for sending a random access signal according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a device for sending a random access signal according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a receiving apparatus for a random access signal according to an embodiment of the present disclosure
  • FIG. 7 is another schematic structural diagram of a device for transmitting a random access signal according to an embodiment of the present invention.
  • FIG. 8 is another schematic structural diagram of a receiving apparatus for a random access signal according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a device according to an embodiment of the present invention.
  • the embodiments of the present application can be applied to a wireless communication system.
  • the wireless communication system mentioned in the embodiments of the present application includes but is not limited to: Narrow Band-Internet of Things (NB-IoT), global mobile Global System for Mobile Communications (GSM), Enhanced Data Rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA) 2000 System (Code Division Multiple Access, CDMA2000), Time Division-Synchronization Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), NR (New Radio, New Air interface) Communication system and the next three applications of the 5G mobile communication system, Enhanced Mobile Broad Band (eMBB), URLLC, and Massive Machine-Type Communications (mMTC).
  • NB-IoT Narrow Band-Internet of Things
  • GSM Global System for Mobile Communications
  • EDGE Enhanced Data Rate for GSM Evolution
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • CDMA2000 Code Division Multiple Access 2000 System
  • the terminal device includes, but is not limited to, a mobile station (MS, Mobile Station), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a mobile phone (handset), and a portable device (portable).
  • the terminal device can communicate with one or more core networks via a Radio Access Network (RAN), for example, the terminal device can be a mobile phone (or "cellular" phone), with wireless
  • RAN Radio Access Network
  • the terminal device can be a mobile phone (or "cellular" phone), with wireless
  • the terminal device may also be a portable, pocket-sized, hand-held, computer-integrated or in-vehicle mobile device or device.
  • FIG. 1 is a schematic structural diagram of a communication system provided by the present application.
  • the communication system 01 includes a network device 101 and a terminal device 102.
  • the network device 101 can also be connected to the core network.
  • Network device 101 may also be in communication with an Internet Protocol (IP) network 200, such as the Internet, a private IP network, or other data network.
  • IP Internet Protocol
  • the network device provides services for the terminal devices within the coverage.
  • network device 101 provides wireless access to one or more terminal devices within coverage of network device 101.
  • network devices can also communicate with each other.
  • Network device 101 may be a device for communicating with a terminal device.
  • a terminal device may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station (Evolved Node B, eNB) in an LTE system.
  • eNodeB evolved base station
  • the network device may also be a relay station, an access point, an in-vehicle device, or the like.
  • the network device may also be a terminal device functioning as a base station.
  • the terminal device may include various handheld devices having wireless communication functions, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem, and various forms of user equipment (UE), mobile stations ( Mobile station, MS), etc.
  • the format of the random access preamble is divided into two categories.
  • the random access preamble has four formats, which are format 0 to format 3, as shown in Table 1. :
  • the format of the random access preamble has 10 formats, as shown in Table 2:
  • the NR communication system also defines the bandwidth allocation of the random access resources corresponding to the random access preamble and the number of protection subcarriers, as shown in Table 3:
  • the embodiment of the present invention provides a A method for transmitting a random access signal includes: an initial frequency offset value configured by a network device according to a network device, a random access resource configuration period, an uplink channel bandwidth, a time of a random access resource, and a frequency index of a random access resource At least one determining a frequency location of the random access resource, preventing the terminal device from blindly attempting to randomly access the frequency location of the resource, and the network device can also receive the random access signal on the corresponding random access resource to improve the random access process. s efficiency.
  • the information that is configured by the network device may be configured to configure an index information, obtain specific information according to the index lookup table, or directly configure a specific information.
  • FIG. 2 is a schematic flowchart of a method for sending a random access signal according to an embodiment of the present invention.
  • the method includes:
  • the network device sends configuration information to the terminal device, where the terminal device receives configuration information from the network device.
  • the configuration information includes at least one of an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of a random access resource, a time of a random access resource, and a frequency index of the random access resource.
  • the random access resource is a time-frequency resource used for transmitting a random access preamble, and the random access resource occupies a certain time in the time domain and occupies a certain bandwidth in the frequency domain.
  • the random access resource configuration pattern indicates the time and frequency location distribution of all available random access resources in the specified time-frequency resource set, and the random access resource configuration period is the time length in which the time-frequency resource set periodically repeats, randomly
  • the access resource configuration period may be represented by the number of system frames, subframes, slots, or OFDM symbols, and the random access resource configuration pattern is periodically repeated.
  • the uplink channel bandwidth indicates the system bandwidth used by the terminal device for uplink transmission, and the size of the uplink channel bandwidth can be represented by the number of RBs.
  • the bandwidth of the random access resource indicates the size of the frequency resource occupied by the random access resource in the frequency domain, and the bandwidth can be represented by the number of RBs.
  • the time of the random access resource indicates the length of time that the random access resource occupies in the time domain, and the length of the time may be represented by the number of subframes, the number of slots, or the number of OFDM symbols; or the time of random access resources indicates random access.
  • the absolute time position where the resource is located including the system frame number, the subframe number in the system frame, the slot number in the subframe, the OFDM symbol in the slot, and the time position in the OFDM symbol (the basic time unit is the granularity); or
  • the relative location of the random access resource in the configuration period of the random access resource that is, there are random access resources in the T time positions in the random access resource configuration period, and the time of the random access resource refers to the relative position 0, 1. ..., T-1.
  • the frequency index of the random access resource indicates the index of the random access resource in the frequency domain.
  • each parameter in the configuration information may be directly notified to the terminal device by the network device, or the network device sends the index of the parameter to the terminal device.
  • Each parameter in the configuration information can be carried in one message or in multiple messages.
  • the time when the network device sends the random access resource by using at least one of RRC signaling, SI, RMSI, NR SIB1, MAC-CE signaling, DCI (downlink control information), PBCH or PDCCH order, random
  • the time of accessing the resource may be an absolute time or an index of time (for example: system frame number, subframe number in the system frame, slot number in the subframe, OFDM symbol in the slot).
  • the time length of the random access resource configuration pattern is K time slots corresponding to the subcarrier spacing of the random access preamble, and K is a positive integer.
  • the length of the random access resource configuration pattern is determined according to the at least one downlink signal that is actually transmitted, and the number of at least one downlink signal that is actually transmitted is increased, and the at least one downlink signal actually transmitted is associated with the random access resource. The larger the number, the longer the time length of the random access resource configuration pattern, and the shorter the actual length of the random access resource configuration pattern.
  • the time length of the random access resource configuration period is at least one of 0.125 ms, 0.25 ms, 0.5 ms, 2 ms, 1 ms, 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, and 320 ms, where 0.125 ms refers to One slot corresponding to 120 kHz, 0.25 ms refers to one slot corresponding to 60 kHz or two slots corresponding to 120 kHz.
  • the network device can directly notify the terminal device of the length of the random access configuration period, for example, directly notifying the terminal device to 0.125 ms; the network device can also notify the terminal device of the index of the time length, for example, the index of 0.125 ms is The index of 1,0.25 ms is 2, and so on.
  • the network device configures the length of the random access configuration period to 0.125 ms, the index 1 of 0.125 is notified to the terminal device.
  • the time length of the random access resource configuration period and the random access resource configuration pattern are respectively configured by the network device.
  • the time length of the random access resource configuration period and the random access resource configuration pattern is respectively obtained according to the random access configuration index.
  • the random access resource configuration period is obtained according to the random access configuration index
  • the time length of the random access resource configuration pattern is obtained according to the configuration information of the network device.
  • the random access resource is obtained according to the random access configuration index. Configure the length of the pattern, and obtain the length of the random access resource configuration period based on the configuration information of the network device.
  • the configuration information may be RRC (radio resource control) signaling, SI (system information), RMSI (remaining minimum system information), NR SIB1 (new radio system information block type 1, New air interface system information block type 1), MAC-CE (media access control-control element) signaling, DCI (downlink control information), PBCH (physical broadcast channel) Or at least one of a PDCCH order (physical downlink control channel command) is indicated.
  • RRC radio resource control
  • SI system information
  • RMSI replacement minimum system information
  • NR SIB1 new radio system information block type 1, New air interface system information block type 1
  • MAC-CE media access control-control element
  • DCI downlink control information
  • PBCH physical broadcast channel
  • PDCCH order physical downlink control channel command
  • FIG. 2b a schematic diagram of a random access resource configuration pattern according to an embodiment of the present invention, where a random access resource configuration pattern represents a time-frequency resource formed by a random access resource configuration period and an uplink channel bandwidth.
  • the location distribution of all available random access resources in the collection are numbered according to a certain rule, and the number of each random access resource is a random access resource. Index, each random access resource corresponds to a different index.
  • the numbering rule of the random access resource in the time-frequency resource set may be: the first frequency domain back time domain (the numbering method shown in FIG.
  • Each of the random access resources in the time-frequency resource set corresponds to one index in the frequency domain (that is, the frequency index of the random access resource), wherein the method for numbering the random access resources in the frequency domain may be: according to the frequency
  • the size is incremented by a fixed step size, or the number is decremented by a fixed step according to the frequency, or the number is used in other manners, which is not limited in this embodiment.
  • the initial frequency offset value is the frequency position of the first available random access resource (the random access resource with index 0) in the time-frequency resource set, for example, the frequency position uses the starting frequency and uplink of the random access resource 0.
  • the difference between the minimum frequencies of the channel bandwidth is represented, for example, the initial frequency offset value is fixed to 0, and the network device is not required to notify the terminal device.
  • the initial frequency offset value is fixed to 0, and the network device is not required to notify the terminal device.
  • the configuration information further includes: a frequency hopping offset value.
  • the frequency hopping offset value indicates a frequency offset value of two adjacent random access resources in the same time period in the time-frequency resource set corresponding to the random access resource.
  • the frequency hopping offset value indicates a frequency offset value between the random access resource 0 and the random access resource 1. It can be understood that the frequency hopping offset values between any two random access resources adjacent in the frequency domain in the time-frequency resource set are equal.
  • the network device may indicate the initial frequency offset value f start and/or the frequency hopping offset value f offset according to System Information (SI):
  • SI System Information
  • the value of the prach-FreqOffset is the initial frequency offset value, which ranges from 1 to N1, and the value of the hopping offset of the prach-HoppingOffset is 0 to N2.
  • N1 and N2 are positive integers.
  • the terminal device determines a frequency location of the random access resource according to the configuration information.
  • the frequency location of the random access resource indicates the absolute location of the random access resource in the frequency domain, and the frequency location of the random access resource is RB or RB group granularity, and the starting frequency of the random access resource and the RB start The starting frequency is aligned.
  • the frequency location of the random access resource is represented by the frequency position of the starting RB of the random access resource or the frequency position of the intermediate RB.
  • the terminal device according to the initial frequency offset value, the time of the random access resource, the random access resource configuration period, the bandwidth of the random access resource, the uplink channel bandwidth, and the value N of the network device configuration or
  • F RB is the frequency location of the random access resource.
  • f start is the initial frequency offset value.
  • T RA is a random access resource configuration period.
  • N RB is the uplink channel bandwidth, which can be understood as the channel bandwidth where the uplink random access procedure is located, or can be the initial active uplink bandwidth part.
  • N RA is the bandwidth of the random access resource, and t RA is the time of the random access resource.
  • f RA is the frequency index of the random access resource.
  • the initial frequency offset value f start is fixed to zero and no configuration is required.
  • FIG. 2d a frequency hopping mode is adopted.
  • the terminal device sends a random access signal in a frequency hopping manner between different random access resource configuration periods.
  • FIG. 2c illustrates another manner of transmitting a random access signal in a frequency hopping manner: the terminal device performs frequency hopping transmission at a random access time, according to the frequency index 0, the frequency index 1, the frequency index 2, ... Long frequency selection for frequency hopping.
  • the terminal device may also perform frequency hopping transmission in a subframe, frequency hopping transmission in a semi-static uplink or downlink UL/DL period, or frequency hopping in a time slot.
  • the embodiment is not limited.
  • the optional frequency hopping modes of Figures 2c and 2d can be used in combination.
  • T RA can be understood as the absolute time length of the random access resource configuration period.
  • t RA can be understood as the absolute time at which the random access resource is located; T RA can also be understood as the random access resource configuration period.
  • the number of random access resources in time At this time, t RA can be understood as the relative time in the N random access resource configuration period where the random access resource is located, or the logical time index; T RA can also be understood as random connection.
  • t RA can be understood as a relative or logical resource index in the N random access resource configuration periods in which the random access resource is located. 1.
  • T RA and/or t RA is an index of one or more absolute time or logical time of a frame, a subframe, a time slot, an OFDM symbol.
  • the terminal device is configured according to a time of the random access resource, a random access resource configuration period, a frequency index of the random access resource, an initial frequency offset value, an uplink channel bandwidth, and a random access resource.
  • mod represents the modulo operator.
  • F RB is the frequency position of the random access resource
  • f start is the initial frequency offset value.
  • T RA is a random access resource configuration period.
  • N RB is the uplink channel bandwidth.
  • N RA is the bandwidth of a random access resource.
  • t RA is the time of random access to resources.
  • f RA is the frequency index of the random access resource.
  • the terminal device according to the time of the random access resource, the random access resource configuration period, the bandwidth of the random access resource, the initial frequency offset value, the frequency index of the random access resource, and the frequency hopping
  • mod represents the modulo operator.
  • F RB is the frequency location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA is The time at which the resource is randomly accessed
  • f RA is the frequency index of the random access resource
  • f offset is the frequency hopping offset value.
  • the frequency index f RA of the random access resource may be understood as a logical frequency index at the time of the random access resource.
  • f RA corresponds to the physical frequency of the random access resource.
  • f RA increases as the physical frequency location where the random access resource is located increases; in another implementation manner, the index is determined to be f RA according to a preset rule, pattern, and formula.
  • f RA is an index of an uplink carrier frequency, an uplink channel bandwidth, an initial access uplink channel bandwidth portion, and a logical frequency in an uplink channel bandwidth portion, for example, f RA is an initial access where the random access resource is located.
  • An index in the uplink channel bandwidth portion is an index in at least one initial access uplink channel bandwidth portion of the uplink carrier where the random access resource is located, that is, if the uplink carrier (and/or corresponding uplink channel) In the bandwidth, there are multiple initial access uplink channel bandwidth portions, and the random access resources in the bandwidth of the multiple initial access uplink channel portions may be indexed together; for example, f RA is in the uplink carrier where the random access resource is located.
  • At least one initial access to an index in an uplink channel bandwidth portion that is, if there are multiple initial access uplink channel bandwidth portions in the uplink carrier or uplink channel bandwidth, random access in a plurality of initial access uplink channel bandwidth portions resources can be indexed together; another example, a cell with a plurality of uplink carriers, f RA uplink random access resources for all Logical frequency index.
  • the index may be considered not to participate in determining the frequency position of the random access resource.
  • the configuration information further includes: a mapping relationship of the random access resources in the random access resource configuration pattern of the at least one downlink signal that is actually sent.
  • the downlink signal that is actually sent is a signal that the network device uses for downlink synchronous transmission, and the downlink signal includes, but is not limited to, any one of SS/PBCH block, DMRS, and CSI-RS.
  • the location of the downlink signal is actually transmitted by the network device.
  • the downlink signal is the SS/PBCH block, and the eight SS/PBCH blocks form a downlink signal group.
  • the rectangular box in Figure 2e indicates that all the network devices are available.
  • the network device has a total of 64 available time-frequency resources for transmitting the downlink signal, wherein the gray rectangular frame indicates the time-frequency resource occupied by the actually transmitted downlink signal, and the network device The number of downlink signals actually transmitted is 16.
  • the SS/PBCH block includes an SS (synchronization signal) and a PBCH, and the SS includes a PSS (primary synchronization signal) and an SSS (secondary synchronization signal).
  • the SS/PBCH block can also have other names, such as: SS block.
  • the network device determines the frequency location of the random access resource according to the mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access resource configuration pattern.
  • the terminal device is configured according to the index of the random access resource, the initial frequency offset value, and the random
  • the frequency index of the access resource, the uplink channel bandwidth, and the bandwidth of the random access resource determine the frequency location where the random access resource is located.
  • the frequency location of the random access resource is determined according to the fourth formula as follows.
  • F RB is a frequency location of a random access resource
  • f start is an initial frequency offset value
  • f offset is a frequency hopping offset value.
  • n RO is an index of random access resources
  • the time indicating a random access resource which can be represented by the number of slots, subframes, or OFDM symbols.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • the terminal device determines the frequency location of the random access resource according to the initial frequency offset value, the time of the random access resource, the frequency hopping offset value, the bandwidth of the random access resource, the frequency index of the random access resource, and the uplink channel bandwidth.
  • the fifth formula below determines the frequency location of the random access resource.
  • F RB is the frequency location of the random access resource
  • f start is the initial frequency offset value
  • n RO is the index of the random access resource.
  • the time indicating a random access resource which can be represented by the number of slots, subframes, or OFDM symbols.
  • f offset indicates the frequency hopping offset value.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • the terminal device determines, according to the time of the random access resource, the initial frequency offset value, the bandwidth of the random access resource, the frequency index of the random access resource, and the uplink channel bandwidth, for example, determining the random access according to the sixth formula: The frequency location of the resource.
  • F RB is the frequency position of the random access resource
  • f start is the initial frequency offset value.
  • n RO is an index of random access resources, The time indicating a random access resource, which can be represented by the number of slots, subframes, or OFDM symbols. The frequency index of the random access resource.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • the terminal device determines the frequency location of the random access resource according to the time of the random access resource, the initial frequency offset value, the frequency index of the random access resource, the frequency hop offset value, and the uplink channel bandwidth, for example, according to the following
  • the seventh formula determines the frequency location of the random access resource.
  • F RB is a frequency location of a random access resource
  • f start is an initial frequency offset value
  • f offset is a frequency hopping offset value.
  • n RO is an index of random access resources
  • the time indicating a random access resource which can be represented by the number of slots, subframes, or OFDM symbols.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • the terminal device determines the random connection according to any one of the following first formula to the third formula: The frequency location of the resource.
  • the frequency location of the random access resource is determined according to the format of the random access preamble and the number of at least one downlink signal actually transmitted.
  • the random access preamble definition has four formats, which are 0 to 3.
  • the random access preamble defines 10 formats, which are formats A0, A1, A2, A3, B1, B2, B3, B4, C0, and C2, respectively.
  • the terminal device determines the frequency location of the random access resource according to Equation 1 or Equation 2; In the case where the format is not any one of A0, A1, B1, and C0, the terminal device determines the frequency location of the random access resource according to Equation 3.
  • the terminal device determines the random according to formula 1 or formula 2.
  • the frequency location of the access resource otherwise, the terminal device determines the frequency location of the random access resource according to Equation 3, where M is an integer greater than 0, and the value of M may be configured by the network device, or may be a predefined value.
  • the index n RO of the random access resource may refer to a logical index of the random access resource in the random access configuration pattern in the random access resource configuration period or the random access resource configuration period; the random access resource
  • the index n RO may also refer to an absolute time and frequency index of the random access resource in the random access configuration pattern in the random access resource configuration period or the random access resource configuration period.
  • the index n RO of the random access resource may also be jointly represented by the frequency index f RA of the random access resource and the time index t RA of the random access resource.
  • the frequency location of the random access resource is determined according to a frame structure type or a duplex mode.
  • the frame structure used by the terminal device includes a TDD (Time Division Duplex) frame or an FDD (Frequency Division Duplex) frame.
  • Duplex mode includes full duplex, time division duplex or frequency division duplex.
  • the terminal device determines the frequency location of the random access resource according to the first formula or the second formula; and uses the TDD frame or the time division in the terminal device.
  • the terminal device determines the frequency location of the random access resource according to the third formula; in the case that the terminal device uses the full duplex to transmit the random access signal, the terminal device according to the sixth formula Determine the frequency location of the random access resource.
  • the terminal device determines the random connection according to the time of the random access resource, the uplink and downlink configuration information, the initial frequency offset value, the bandwidth of the random access resource, the frequency index of the random access resource, and the uplink channel bandwidth.
  • the frequency location of the resource includes at least one of an uplink time slot, a downlink time slot, quantity information of an undetermined time slot, and period information TDL/UL.
  • the frequency location of the random access resource is determined according to the following eighth formula.
  • T DL/UL indicates uplink and downlink configuration information.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the random access resource according to the time of the random access resource, the uplink and downlink configuration information, the frequency index of the random access resource, the initial frequency offset value, and the bandwidth of the random access resource.
  • Frequency location For example, the frequency location of the random access resource is determined according to the ninth formula as follows.
  • F RB is the frequency position of the random access resource
  • f start is the initial frequency offset value.
  • T DL/UL indicates uplink and downlink configuration information.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • the terminal device according to the time of the random access resource, the uplink and downlink configuration information, the initial frequency offset value, the bandwidth of the random access resource, the frequency index of the random access resource, and the frequency hopping offset value. And determining the frequency location of the random access resource by using the uplink channel bandwidth, for example, determining the frequency location of the random access resource according to the tenth formula as follows.
  • F RB is the frequency position of the random access resource
  • f start is the initial frequency offset value.
  • T DL/UL indicates uplink and downlink configuration information.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • f offset is the frequency hop offset value.
  • the terminal device determines the random connection according to the time of the random access resource, the network device configuration or the preset time, the initial frequency offset value, the bandwidth of the random access resource, and the frequency index of the random access resource.
  • the frequency location of the resource is an absolute time, that is, the number of OFDM symbols, the number of slots, the number of subframes, the number of frames, and the number of milliseconds, for example, 0.125 ms, 0.25 ms, 0.5 ms, 2 ms, 1 ms, 5 ms, 10ms, 20ms, 40ms, 80ms, 160ms, 320ms.
  • T is the number of random access resources in the random access configuration pattern or T is the number of downlink signals associated with the random access resources.
  • the terminal device determines the frequency location of the random access resource according to the eleventh formula as follows.
  • mod represents the modulo operator, Indicates the down rounding operator.
  • F RB is the frequency position of the random access resource, and f start is the initial frequency offset value.
  • T represents the number of random access resources in the random access configuration pattern.
  • N RA is the bandwidth of the random access resource, and N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the frequency location of the random access resource according to the twelfth formula as follows.
  • mod represents the modulo operator, Indicates the down rounding operator.
  • F RB is the frequency position of the random access resource, and f start is the initial frequency offset value.
  • T represents the number of random access resources in the random access configuration pattern.
  • N RA is the bandwidth of the random access resource, and N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the frequency location of the random access resource according to the thirteenth formula as follows.
  • F RB is the frequency position of the random access resource
  • f start is the initial frequency offset value
  • T represents the number of random access resources in the random access configuration pattern.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • f offset is the frequency hop offset value.
  • the terminal device sends a random access signal to the network device, where the network device receives the random access signal from the terminal device.
  • the terminal device selects one random access preamble in the random access preamble set, and maps the selected random access preamble to the frequency location of the random access resource determined in S202 to generate random access.
  • a signal, a random access signal is sent to the network device, and the terminal device selects a random access preamble to be sent.
  • the embodiment is not limited in this embodiment.
  • the frequency location of the random access resource needs to be determined according to the configuration information, and the method for determining, by the network device, the frequency location of the random access resource according to the configuration information, refer to S202.
  • the method for determining the frequency location of the random access resource according to the configuration information is not described here.
  • the random access resource configuration period, the format of the random access preamble, the subcarrier spacing of the random access preamble, and the bandwidth of the random access resource may be according to the index of the random access resource and the subcarrier spacing of the message 3. Get at least one.
  • the bandwidth of the random access resource may be determined according to at least one of a format of a random access preamble, a subcarrier spacing of a random access preamble, and a subcarrier spacing of the message 3.
  • the initial frequency offset value and the frequency hopping offset value are determined according to at least one of a subcarrier spacing of the random access preamble, a subcarrier spacing of the message 3, and a number of random access resources at the same time.
  • the terminal device according to the initial frequency offset value configured by the network device, the random access resource configuration period, the uplink channel bandwidth, the bandwidth of the random access resource, the time of the random access resource, and the random access At least one of the frequency index of the resource determines a frequency location of the random access resource, and the terminal device sends a random access signal to the network device at the determined frequency location, to prevent the terminal device from blindly attempting to randomly access the resource when transmitting the random access signal.
  • the problem is to improve the efficiency of the random access process.
  • FIG. 3 is a schematic flowchart of a method for sending a random access signal according to an embodiment of the present invention.
  • the method includes:
  • the network device sends configuration information to the terminal device, where the terminal device receives configuration information from the network device.
  • the configuration information includes at least one of an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of a random access resource, a time of a random access resource, and a frequency index of the random access resource.
  • the random access resource is used to transmit all time-frequency resources of a random access preamble, and the random access resource occupies a certain time in the time domain and occupies a certain bandwidth in the frequency domain.
  • the random access resource configuration pattern indicates the length of time in which the specified time-frequency resource set periodically repeats, and the random access resource configuration period may be represented by the number of system frames, subframes, slots, or OFDM symbols.
  • the uplink channel bandwidth indicates the system bandwidth used by the terminal device for uplink transmission, and the uplink channel bandwidth can be represented by the number of RBs.
  • the bandwidth of the random access resource indicates the size of the frequency resource occupied by the random access resource in the frequency domain, and the bandwidth can be represented by the number of RBs.
  • the time of the random access resource indicates the length of time that the random access resource occupies in the time domain, and the length of time can be represented by the number of subframes, the number of slots, or the number of OFDM symbols.
  • the frequency index of the random access resource indicates the number of the random access resource in the frequency domain.
  • the configuration information further includes a bandwidth of an initial active uplink bandwidth part.
  • the initial frequency offset value includes a starting resource block position in which the uplink initial access bandwidth portion is located in the uplink channel bandwidth, and a starting resource block position in which the random access resource is located in the uplink initial access bandwidth portion.
  • the starting resource block locations may be based on different subcarrier spacings.
  • the location of the initial resource block in the uplink initial access bandwidth part of the random access resource in FIG. 3b is fixed to 0.
  • the initial resource access block in the uplink channel bandwidth in FIG. 3b is located at a fixed value, for example, fixed to the same center frequency, the same starting frequency, and the same ending frequency.
  • the terminal device determines, according to the configuration information, a resource block location of the random access resource.
  • the resource block location of the random access resource is only the resource location where the random access resource is located in the uplink initial access bandwidth, and the terminal needs to locate the frequency location and the uplink initial access bandwidth in the uplink channel bandwidth according to the uplink initial access bandwidth.
  • the resource location, the subcarrier offset value, and the frequency location of the uplink channel are used together to determine the absolute frequency location of the random access resource.
  • the random access resource is a time-frequency resource used for transmitting a random access preamble, and the random access resource occupies a certain time in the time domain and occupies a certain bandwidth in the frequency domain.
  • the random access resource configuration pattern indicates the location distribution of all available random access resources in the specified time-frequency resource set, the random access resource configuration period is the time length of the time-frequency resource set, and the random access resource configuration period can be used.
  • the number of system frames, subframes, time slots, or OFDM symbols indicates that the random access resource configuration pattern is periodically repeated, and the repetition period is a random access resource configuration period.
  • the uplink channel bandwidth indicates the system bandwidth used by the terminal device for uplink transmission. In another implementation manner, it is also referred to as the uplink channel bandwidth.
  • the size of the upstream channel bandwidth can be expressed by the number of RBs.
  • the bandwidth of the random access resource indicates the size of the frequency resource occupied by the random access resource in the frequency domain, and the bandwidth can be represented by the number of RBs.
  • the time of the random access resource indicates the length of time that the random access resource occupies in the time domain, and the length of the time may be represented by the number of subframes, the number of slots, or the number of OFDM symbols.
  • the frequency index of the random access resource indicates an index of the random access resource in the frequency domain, and the same random access resource has the same frequency index.
  • the time length of the random access resource configuration pattern is K time slots corresponding to the subcarrier spacing of the random access preamble, and K is a positive integer.
  • the length of the random access resource configuration pattern is determined according to the at least one downlink signal that is actually transmitted, and the number of at least one downlink signal that is actually transmitted is increased, and the at least one downlink signal actually transmitted is associated with the random access resource. The larger the number, the longer the time length of the random access resource configuration pattern, and the shorter the actual length of the random access resource configuration pattern.
  • the time length of the random access resource configuration period is at least one of 0.125 ms, 0.25 ms, 0.5 ms, 2 ms, 1 ms, 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, and 320 ms, where 0.125 ms refers to One slot corresponding to 120 kHz, 0.25 ms refers to one slot corresponding to 60 kHz or two slots corresponding to 120 kHz.
  • the time length of the random access resource configuration period and the random access resource configuration pattern are respectively configured by the network device.
  • the time length of the random access resource configuration period and the random access resource configuration pattern is respectively obtained according to the random access configuration index.
  • the random access resource configuration period is obtained according to the random access configuration index
  • the time length of the random access resource configuration pattern is obtained according to the configuration information of the network device.
  • the time length of the random access resource configuration pattern is obtained according to the random access configuration index
  • the time length of the random access resource configuration period is obtained according to the configuration information of the network device.
  • the configuration information may be indicated by at least one of RRC signaling, SI, RMSI, NR SIB0, NR SIB1, MAC-CE signaling, DCI, PBCH, or PDCCH order.
  • the configuration information further includes: a frequency hopping offset value.
  • the explanation and description of the hopping offset value can be referred to the above introduction, and will not be described here.
  • the method 1 the terminal device may determine the resource block location of the random access resource according to the fourteenth formula as follows.
  • F RB is the resource block location of the random access resource.
  • f start is the initial frequency offset value.
  • T RA is a random access resource configuration period.
  • N RB is the uplink channel bandwidth.
  • N RA is the bandwidth of the random access resource, and
  • t RA is the time of the random access resource.
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the location of the resource block where the random access resource is located according to the fifteenth formula below.
  • mod represents the modulo operator.
  • F RB is the resource block location of the random access resource
  • f start is the initial frequency offset value.
  • T RA is a random access resource configuration period.
  • N RB is the uplink channel bandwidth.
  • N RA is the bandwidth of a random access resource.
  • t RA is the time of random access to resources.
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the location of the resource block where the random access resource is located according to the sixteenth formula as follows.
  • mod represents the modulo operator.
  • F RB is the resource block location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is the bandwidth of the random access resource
  • t RA For the time of random access resources, f RA is the frequency index of the random access resource, and f offset is the frequency hopping offset value.
  • the configuration information further includes: a mapping relationship of the random access resources in the random access resource configuration pattern of the at least one downlink signal that is actually sent.
  • the downlink signal that is actually sent is a signal that the network device uses for downlink synchronous transmission
  • the downlink signal includes, but is not limited to, any one of SS/PBCH block, DMRS, and CSI-RS.
  • the network device determines a resource block location of the random access resource according to a mapping relationship between the at least one downlink signal actually sent and the random access resource in the random access resource configuration pattern.
  • the terminal device determines the resource block location of the random access resource according to the following seventeenth formula.
  • F RB is a resource block position of a random access resource
  • f start is an initial frequency offset value
  • f offset is a frequency hopping offset value.
  • n RO is an index of random access resources
  • the time indicating a random access resource which can be represented by the number of slots, subframes, or OFDM symbols.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • the terminal device determines a resource block location of the random access resource according to the eighteenth formula as follows.
  • F RB is the resource block location of the random access resource
  • f start is the initial frequency offset value
  • n RO is the index of the random access resource.
  • the time indicating a random access resource which can be represented by the number of slots, subframes, or OFDM symbols.
  • f offset indicates the frequency hopping offset value.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • the terminal device determines the resource block location of the random access resource according to the nineteenth formula as follows.
  • F RB is a resource block location of a random access resource
  • f start is an initial frequency offset value
  • n RO is an index of random access resources
  • the time indicating a random access resource which can be represented by the number of slots, subframes, or OFDM symbols.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • Method seven The terminal device determines a resource block location of the random access resource according to a twentieth formula as follows.
  • F RB is a resource block position of a random access resource
  • f start is an initial frequency offset value
  • f offset is a frequency hopping offset value.
  • n RO is an index of random access resources
  • the time indicating a random access resource which can be represented by the number of slots, subframes, or OFDM symbols.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • the terminal device determines the random access resource according to any one of Equations 1 to 3 below. Resource block location.
  • Method 8 Determine a resource block location of the random access resource according to a format of the random access preamble and the number of at least one downlink signal actually transmitted.
  • the random access preamble definition has four formats, which are 0 to 3.
  • the random access preamble defines 10 formats, which are formats A0, A1, A2, A3, B1, B2, B3, B4, C0, and C2, respectively.
  • the terminal device determines the resource block position of the random access resource according to the fourteenth formula or the fifteenth formula;
  • the terminal device determines the resource block location of the random access resource according to the sixteenth formula.
  • the terminal device determines the random according to formula 1 or formula 2.
  • the location of the resource block of the access resource otherwise, determines the location of the resource block of the random access resource according to the third formula, where M is an integer greater than 0, and the value of M may be configured by the network device, or may be a predefined value.
  • Method nine determining a resource block location of the random access resource according to a frame structure type or a duplex mode.
  • the frame structure used by the terminal device includes a TDD (Time Division Duplex) frame or an FDD (Frequency Division Duplex) frame.
  • Duplex mode includes full duplex, time division duplex or frequency division duplex.
  • the terminal device determines the resource block position of the random access resource according to Equation 1 or Equation 2; and uses the TDD frame or the time division double in the terminal device.
  • the terminal device determines the resource block location of the random access resource according to Equation 3; in the case where the terminal device uses the full duplex to transmit the random access signal, the terminal device according to the nineteenth formula Determine the frequency location of the random access resource.
  • the terminal device further determines a resource block location of the random access resource according to the uplink and downlink configuration information and/or the duplex mode.
  • the uplink and downlink configuration information includes at least one of an uplink time slot, a downlink time slot, an undetermined time slot quantity information, and period information T DL/UL .
  • the frequency position is determined according to the twenty-first formula below.
  • F RB is a resource block location of a random access resource
  • f start is an initial frequency offset value.
  • T DL/UL indicates uplink and downlink configuration information.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the frequency position according to the twenty-second formula as follows.
  • F RB is the resource block location of the random access resource
  • f start is the initial frequency offset value.
  • T DL/UL indicates uplink and downlink configuration information.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the frequency resource location according to the twenty-third formula as follows.
  • F RB is the resource block location of the random access resource
  • f start is the initial frequency offset value.
  • T DL/UL indicates uplink and downlink configuration information.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • the terminal device also randomly accesses the resource block location of the resource according to the network device configuration or the preset time T.
  • T is an absolute time, that is, the number of OFDM symbols, the number of slots, the number of subframes, the number of frames, and the number of milliseconds, for example, 0.125 ms, 0.25 ms, 0.5 ms, 2 ms, 1 ms, 5 ms, 10 ms, 20 ms, 40 ms, 80ms, 160ms, 320ms; for example, T is the number of random access resources.
  • the terminal device determines the frequency location of the random access resource according to the twenty-fourth formula.
  • F RB is the resource block location of the random access resource
  • f start is the initial frequency offset value.
  • T represents the number of random access resources in the random access configuration pattern.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the frequency location of the random access resource according to the twenty-fifth formula.
  • F RB is the resource block location of the random access resource, and f start is the initial frequency offset value.
  • T represents the number of random access resources in the random access configuration pattern; or T is the number of downlink signals associated with the random access resources.
  • N RA is the bandwidth of the random access resource, and N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • the terminal device determines the frequency location of the random access resource according to the twenty-sixth formula.
  • F RB is the resource block location of the random access resource
  • f start is the initial frequency offset value.
  • T represents the number of random access resources in the random access configuration pattern.
  • N RA is the bandwidth of the random access resource
  • N RB is the uplink channel bandwidth, for example, represented by the number of RBs.
  • t RA indicates the time at which resources are randomly accessed.
  • f RA is the frequency index of the random access resource.
  • f offset is the frequency hop offset value.
  • the resource block location of the random access resource determined above is only the resource location where the random access resource is located in the uplink initial access bandwidth, and the terminal device needs to be located in the uplink channel bandwidth according to the uplink initial access bandwidth.
  • the location, the resource location within the uplink initial access bandwidth, the subcarrier offset value, and the frequency location of the uplink channel together determine the absolute frequency location of the random access resource.
  • the method for obtaining the subcarrier offset value by the terminal device may be: determining the subcarrier offset value according to the offset value of the at least one downlink signal (for example, SS block) that is actually sent, and offsetting the at least one downlink signal that is actually sent.
  • the value and the subcarrier offset value are equal; if the subcarrier spacing SCS1 of the downlink signal (or the downlink initial access bandwidth) is different from the subcarrier spacing SCS2 of the random access resource or the uplink initial access bandwidth portion (or the uplink channel bandwidth)
  • the subcarrier offset value is a pre-configured or pre-stored value.
  • the subcarrier offset value is related to a frequency index and/or a carrier frequency of the first available random access resource in the random access resource configuration pattern; or the subcarrier offset value is different from the offset value of the at least one downlink signal.
  • the indication information indicating the subcarrier offset value is different from the indication information indicating the offset value of the at least one downlink signal that is actually sent, where the indication information indicating the subcarrier offset value includes: RRC signaling, SI, RMSI, NR SIB0 At least one of NR SIB1, MAC-CE signaling, DCI, PBCH, or PDCCH order.
  • the terminal device determines a frequency location of the random access resource according to the subcarrier offset value and the resource block location.
  • the frequency location of the random access resource indicates the absolute location of the random access resource in the frequency domain, and the frequency location of the random access resource is the granularity of the subcarrier or the RE, the starting frequency of the random access resource, and the subcarrier or RE.
  • the starting frequency is aligned, for example, the frequency position of the random access resource can be represented by the frequency position of the starting subcarrier or the frequency position of the intermediate subcarrier.
  • the terminal device determines the frequency location of the random access resource according to the twenty-seventh formula as follows.
  • the F SC is a frequency location of a random access resource, and is a sub-carrier or an RE.
  • the F RB is a resource block location of a random access resource, and is RB or RB group granularity. Is the number of subcarriers contained in one RB. M is the subcarrier offset value.
  • a downlink signal maps multiple random access resources in a random access resource configuration period or a random access resource configuration pattern
  • the terminal device may randomly select or follow multiple random access resources.
  • the predefined rule selects one as a random access resource for random access.
  • the predefined rule may be: selecting any random access resource within the support bandwidth according to the minimum bandwidth capability of the terminal device; or according to the size of the message 3 of the terminal device and the received power of the downlink signal (or path loss, transmit power) And the preset threshold value and the corresponding relationship between the random access resource and the threshold value, and the corresponding random access resource is selected; or the terminal device uses other rules to select the random access resource, which is not limited in this embodiment.
  • the terminal device sends a random access signal to the network device at a frequency location of the random access resource, where the network device receives the random access signal from the terminal device.
  • the terminal device selects one random access preamble in the random access preamble set, and maps the selected random access preamble to the frequency location of the random access resource determined in S202 to generate random access.
  • a signal, a random access signal is sent to the network device, and the terminal device selects a random access preamble to be sent.
  • the embodiment is not limited in this embodiment.
  • the network device before receiving the random access signal sent by the terminal device, the network device needs to determine the frequency location of the random access resource according to the resource block position and the subcarrier offset of the random access resource, and the process of determining the frequency location may refer to the figure. The process of determining the frequency location of the random access resource by the terminal device in 3a is not described here.
  • the terminal device may generate a random access signal according to the twenty-eighth formula as follows.
  • N ZC is the sequence length of the random access preamble.
  • x u,v(n) x u,v (n) denotes a ZC sequence.
  • T CP represents the length of the cyclic prefix.
  • t represents the time of the preamble, starting from 0, including the sequence length and CP length: 0 ⁇ t ⁇ T SEQ + T CP .
  • ⁇ f RA represents the subcarrier spacing of the random access preamble.
  • K ⁇ f / ⁇ f RA
  • ⁇ f represents the initial uplink uplink bandwidth (IAU BWP) or the uplink bandwidth portion (BWP) subcarrier spacing.
  • t is the time position of the random access resource. The values are as shown in Table 4 below:
  • K1 and K2 can take any one of 0 to 25, and K3 can take any integer from 0 to 5.
  • a random access signal can also be generated according to the following twenty-ninth formula.
  • s(t) is a random access signal
  • ⁇ PRACH is an amplitude adjustment factor of the random access signal, and is used for controlling the transmission power of the random access signal
  • N ZC is the sequence length of the random access preamble, according to the record of Table 3, the sequence length may be 839 or 139;
  • x u,v (n) represents a sequence for generating a random access preamble, such as a ZC sequence
  • T CP represents the length of the cyclic prefix absolute time according to the LTE standard
  • Preamble format T CP T SEQ 0 3168 ⁇ T s 24576 ⁇ T s 1 21024 ⁇ T s 24576 ⁇ T s 2 6240 ⁇ T s 2 ⁇ 24576 ⁇ T s 3 21024 ⁇ T s 2 ⁇ 24576 ⁇ T s 4 448 ⁇ T s 4096 ⁇ T s
  • t represents the absolute time of the preamble, starting from 0, including the sequence length and CP length, and 0 ⁇ t ⁇ T SEQ + T CP ;
  • tT CP represents the absolute time of the preamble minus the absolute time of the cyclic prefix, ie the length of time of the sequence
  • ⁇ f RA represents the subcarrier spacing of the random access preamble
  • K ⁇ f/ ⁇ f RA , ⁇ f represents an initial active uplink bandwidth (IAU BWP) or an uplink bandwidth portion (BWP) subcarrier spacing;
  • the F RB is the (resource block) frequency location of the random access resource obtained by the foregoing embodiment
  • the F SC is the (resource particle or subcarrier) frequency location of the random access resource acquired in the foregoing embodiment. Is the number of subcarriers in an RB, and the value is 12.
  • variable can also be represented by other letters
  • an offset value relative to the frequency location of the random access resource an additional offset on the frequency at which the random access channel is located, where the random access channel starts the frequency position, Consists of RB position and subcarrier offset values
  • a random access signal can also be generated according to the following thirtieth formula.
  • the terminal device determines the frequency location of the random access resource according to the resource block location and the subcarrier offset value of the random access resource, so that the terminal device can use the frequency resource by using the subcarrier or the RE as the granularity to improve the frequency resource. Utilization.
  • FIG. 4 is a schematic flowchart of another method for sending a random access signal according to an embodiment of the present invention.
  • the method includes:
  • the network device determines, according to the configuration information, a resource block location of the random access resource.
  • the process of determining, by the network device, the resource block of the random access resource according to the configuration information may refer to the process of determining the resource block location of the random access resource according to the configuration information in FIG. 3a, and details are not described herein again.
  • the network device sends a resource block location of the random access resource to the terminal device, where the terminal device receives the resource block location of the random access resource from the network device.
  • the network device may send the resource block location of the random access resource by using at least one of RRC signaling, SI, RMSI, NR SIB0, NR SIB1, MAC-CE signaling, DCI, PBCH, or PDCCH order.
  • the terminal device determines a frequency location of the random access resource according to the subcarrier offset value and the resource block location.
  • the terminal device sends a random access signal to the network device, where the network device receives the random access signal from the terminal device.
  • the terminal device determines the frequency location of the random access resource according to the resource block location and the subcarrier offset value of the random access resource, so that the terminal device can use the frequency resource by using the subcarrier or the RE as the granularity to improve the frequency resource. Utilization.
  • FIG. 2a illustrates a method for transmitting a random access signal according to an embodiment of the present invention.
  • the following provides a device for transmitting a random access signal (hereinafter referred to as device 5) according to an embodiment of the present invention.
  • the apparatus 5 shown in FIG. 5 can implement the terminal device side of the embodiment shown in FIG. 2a, and the apparatus 5 includes a receiving unit 501, a processing unit 502, and a sending unit 503.
  • the receiving unit 501 receives configuration information from the network device, where the configuration information includes an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of a random access resource, and the random access resource. At least one of time, a frequency index of the random access resource.
  • the processing unit 502 determines a frequency location of the random access resource according to the configuration information.
  • the sending unit 503 is configured to send a random access signal to the network device at a frequency location of the random access resource.
  • the configuration information further includes:
  • the processing unit 502 is configured to determine, according to the configuration information, a frequency location of the random access resource, specifically:
  • the F RB is a frequency location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is The bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit 502 is configured to determine, according to the configuration information, a frequency location of the random access resource, specifically:
  • the F RB is a frequency location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is The bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit 502 is configured to determine, according to the configuration information, a frequency location of the random access resource, specifically:
  • the F RB is a frequency location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is The bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource
  • f offset is the frequency hopping offset value.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal that is actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of at least one downlink signal actually sent.
  • the configuration information further includes: at least one of a system frame structure, an uplink and downlink configuration information, and a duplex mode corresponding to the random access preamble.
  • the device 5 may be a terminal device, and the device 5 may also be a field-programmable gate array (FPGA), a dedicated integrated chip, a system on chip (SoC), and a central unit.
  • FPGA field-programmable gate array
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • MCU micro controller unit
  • PLD programmable logic device
  • the receiving device of the random access signal (hereinafter referred to as the device 6) shown in FIG. 6 can implement the network device side of the embodiment shown in FIG. 2a, and the device 6 includes: a sending unit 601, configured to send to the terminal device.
  • the configuration information where the configuration information includes: at least one of an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of the random access resource, and a frequency index of the random access resource.
  • the processing unit 602 is configured to determine a frequency location of the random access resource according to the configuration information.
  • the receiving unit 603 is configured to receive a random access signal from the terminal device at a frequency location of the random access resource.
  • the configuration information further includes: a frequency hopping offset value.
  • the processing unit 602 is configured to determine, according to the configuration information, a frequency location of the random access resource, specifically:
  • the F RB is a frequency location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is The bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit 602 is configured to determine, according to the configuration information, a frequency location of the random access resource, specifically:
  • the F RB is a frequency location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is The bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit 602 is configured to determine, according to the configuration information, a frequency location of the random access resource, specifically:
  • the F RB is a frequency location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA is The bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource
  • f offset is the frequency hopping offset value.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal that is actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of at least one downlink signal actually sent.
  • the configuration information further includes: at least one of a system frame structure, an uplink and downlink configuration information, and a duplex mode corresponding to the random access preamble.
  • the device 6 may be a network device, and the device 6 may also be a field-programmable gate array (FPGA), a dedicated integrated chip, a system on chip (SoC), and a central unit for implementing related functions.
  • FPGA field-programmable gate array
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • MCU micro controller unit
  • PLD programmable logic device
  • FIG. 3a and FIG. 4 illustrate in detail a method for transmitting a random access signal according to an embodiment of the present invention.
  • the following provides a device for transmitting a random access signal (hereinafter referred to as device 7) according to an embodiment of the present invention.
  • the apparatus 7 shown in FIG. 7 can implement the terminal device side of the embodiment shown in FIG. 3a and FIG. 4, and the apparatus 7 includes a processing unit 701 and a transmitting unit 702.
  • the processing unit 701 is configured to determine a frequency location of the random access resource according to a subcarrier offset value and a resource block location of the random access resource.
  • the sending unit 702 is configured to send the random access signal to the network device at a frequency location of the random access resource.
  • the processing unit 701 is configured to determine a frequency location of the random access resource according to the subcarrier offset value and the resource block location of the random access resource, where the method includes:
  • the F SC is a frequency location of the random access resource
  • the F RB is a resource block location where the random access resource is located.
  • M is the subcarrier offset value.
  • the subcarrier offset value is the same as the offset value of the at least one downlink signal that is actually sent; or
  • the subcarrier offset value is related to a frequency index and/or a carrier frequency of the first random access resource of the random access resource configuration pattern corresponding to the random access resource;
  • the indication information for indicating the subcarrier offset value is different from the indication information for indicating an offset value of the at least one downlink signal actually transmitted.
  • the terminal device further includes a receiving unit (not shown), and the receiving unit is configured to receive configuration information from the network device, where the configuration information includes an initial frequency offset value and a random access resource configuration period. At least one of an uplink channel bandwidth, a bandwidth of the random access resource, a time of the random access resource, and a frequency index of the random access resource;
  • the processing unit is further configured to determine, according to the configuration information, a resource block location of the random access resource; or
  • a receiving unit configured to receive a resource block location of the random access resource from the network device.
  • the configuration information further includes: a frequency hopping offset value.
  • the processing unit 701 is configured to determine, according to the configuration information, a resource block location of the random access resource, specifically:
  • the F RB is a resource block location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA Is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit 701 is configured to determine, according to the configuration information, a resource block location of the random access resource, specifically:
  • the F RB is a resource block location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA Is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit 701 is configured to determine, according to the configuration information, a resource block location of the random access resource, specifically:
  • the F RB is a resource block location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA The bandwidth of the random access resource, where t RA is the time of the random access resource, f RA is the frequency index of the random access resource, and f offset is the frequency hopping offset value.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal that is actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of the at least one downlink signal that is actually sent.
  • the configuration information further includes: at least one of a frame structure, uplink and downlink configuration information, and a duplex mode.
  • the device 7 may be a terminal device, and the device 7 may also be a field-programmable gate array (FPGA), a dedicated integrated chip, a system on chip (SoC), and a central unit for implementing related functions.
  • FPGA field-programmable gate array
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • MCU micro controller unit
  • PLD programmable logic device
  • the receiving apparatus of the random access signal (hereinafter referred to as the apparatus 8) shown in FIG. 8 can implement the network device side of the embodiment shown in FIG. 3a and FIG. 4, and the apparatus 8 includes: a processing unit 801 and a receiving unit 802. .
  • the processing unit 801 is configured to determine a frequency location of the random access resource according to a resource block location and a subcarrier offset of the random access resource.
  • the receiving unit 802 is configured to receive a random access signal from the terminal device at a frequency location of the random access resource.
  • the processing unit 801 is configured to determine a frequency location of the random access resource according to the subcarrier offset value and the resource block location of the random access resource, and specifically includes:
  • the F SC is a frequency location of the random access resource
  • the F RB is a resource block location where the random access resource is located.
  • M is the subcarrier offset value.
  • the subcarrier offset value is the same as the offset value of the downlink signal.
  • the subcarrier offset value is related to a frequency index and/or a carrier frequency of the first random access resource of the random access resource configuration pattern corresponding to the random access resource;
  • the indication information for indicating the subcarrier offset value is different from the indication information for indicating the offset value of the at least one downlink signal actually transmitted.
  • the device 8 further includes a sending unit (not shown), and the sending unit is configured to send configuration information to the terminal device, where the configuration information includes: an initial frequency offset value, a random access resource configuration period, and an uplink channel bandwidth. At least one of a bandwidth of a random access resource, a time of a random access resource, and a frequency index of a random access resource; or
  • the processing unit 801 is further configured to determine a resource block location of the random access resource, where the configuration information includes an initial frequency offset value, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of the random access resource, and a random access resource. At least one of a time, a frequency index of a random access resource;
  • a sending unit configured to send, to the terminal device, a resource block location of the random access resource.
  • the configuration information further includes: a frequency hopping offset value.
  • the processing unit 801 is configured to determine, according to the configuration information, a resource block location of the access resource, where the method includes:
  • the F RB is a resource block location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA Is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit 801 is configured to determine, according to the configuration information, a resource block location of the random access resource, specifically:
  • the F RB is a resource block location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA Is the bandwidth of the random access resource
  • t RA is the time of the random access resource
  • f RA is the frequency index of the random access resource.
  • the processing unit 801 is configured to determine, according to the configuration information, a resource block location of the random access resource, specifically:
  • the F RB is a resource block location of the random access resource
  • f start is the initial frequency offset value
  • T RA is the random access resource configuration period
  • N RB is the uplink channel bandwidth
  • N RA The bandwidth of the random access resource, where t RA is the time of the random access resource, f RA is the frequency index of the random access resource, and f offset is the frequency hopping offset value.
  • the configuration information further includes: a mapping relationship between the at least one downlink signal that is actually sent and the random access resource in the random access resource configuration pattern.
  • the configuration information further includes: a random access preamble format corresponding to the random access signal and/or a quantity of the at least one downlink signal actually sent.
  • the configuration information further includes: at least one of a frame structure, uplink and downlink configuration information, and a duplex mode.
  • the device 8 may be a network device, and the device 8 may also be a field-programmable gate array (FPGA), a dedicated integrated chip, and a system on chip (SoC).
  • FPGA field-programmable gate array
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • MCU micro controller unit
  • PLD programmable logic device
  • FIG. 9 is a schematic structural diagram of a device according to an embodiment of the present invention.
  • the device 9 may be integrated into the foregoing network device or terminal device.
  • the device includes: a memory 902, a processor 901, and a transmitting device. And a receiver 903.
  • the memory 902 can be a separate physical unit, and can be connected to the processor 901, the transmitter 904, and the receiver 903 via a bus.
  • the memory 902, the processor 901, the transmitter 904, and the receiver 901 can also be integrated together, implemented by hardware, and the like.
  • the transmitter 904 and the receiver 903 may also be connected to an antenna, and the receiver 903 receives information transmitted by other devices through an antenna, and accordingly, the transmitter 904 transmits information to other devices through the antenna.
  • the memory 902 is configured to store a program that implements the above method embodiments, or various modules of the device embodiment, and the processor 901 calls the program to perform the operations of the foregoing method embodiments.
  • the random access device may also include only the processor.
  • the memory for storing the program is located outside the random access device, and the processor is connected to the memory through the circuit/wire for reading and executing the program stored in the memory.
  • the processor can be a central processing unit (CPU), a network processor (NP) or a combination of CPU and NP.
  • CPU central processing unit
  • NP network processor
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.
  • the memory may include a volatile memory such as a random-access memory (RAM); the memory may also include a non-volatile memory such as a flash memory.
  • RAM random-access memory
  • non-volatile memory such as a flash memory.
  • HDD hard disk drive
  • SSD solid-state drive
  • the memory may also include a combination of the above types of memories.
  • the sending module or the transmitter performs the steps of the foregoing method embodiments
  • the receiving module or the receiver performs the steps received by the foregoing method embodiments, and other steps are performed by other modules or processors.
  • the transmitting module and the receiving module can form a transceiver module
  • the receiver and the transmitter can form a transceiver.
  • the embodiment of the present application further provides a computer storage medium, which is stored with a computer program, which is used to execute the random access method provided by the foregoing embodiment.
  • the embodiment of the present application further provides a computer program product comprising instructions, which when executed on a computer, causes the computer to execute the random access method provided by the foregoing embodiment.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本申请公开了一种随机接入信号的发送方法、接收方法和相关装置。在本申请中,终端设备根据网络设备配置的初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间和随机接入资源的频率索引中至少一种确定随机接入资源的频率位置,终端设备在确定的频率位置向网络设备发送随机接入信号,避免终端设备在发送随机接入信号时盲目尝试随机接入资源的问题,网络设备也能在对应的频率位置接收来自终端设备的随机接入信号,提升随机接入过程的效率。

Description

通信方法及装置
本申请要求在2017年11月17日提交中国国家知识产权局、申请号为201711149085.X、发明名称为“随机接入信号的发送方法、接收方法和相关装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域,尤其涉及一种随机接入信号的发送方法、接收方法和相关装置。
背景技术
移动业务的发展对无线通信的数据速率和容量的要求越来越高,为了支持更高的数据速率和更大的用户容量,下一代通信系统(例如:NR(new radio)新空口)使用多波束的方式进行通信,基站与终端进行通信之前,首先需要进行上行同步和下行同步。在下行同步过程中,基站通过多个发送波束发送下行同步信号,终端利用一个或多个接收波束,对下行同步信号进行接收并检测,确定最佳下行发送波束和接收波束对、下行时间以及系统信息。而上行同步借助于随机接入过程来完成,终端首先发送随机接入信号,基站通过检测随机接入信号,获取最佳上行发送波束和接收波束对、上行时间等,并实现基站与终端的上行同步。
目前的新空口(New Radio,NR)通信系统中,还没有合适的确定随机接入资源的频率位置的方法,因而终端在发送随机接入信号时存在盲目尝试随机接入资源的问题、并且基站在接收随机接入信号时可能出现波束不匹配的问题,从而导致随机接入过程的效率较低。
发明内容
本发明实施例所要解决的技术问题在于,提供一种随机接入信号的发送方法、接收方法和相关装置,实现了下一代通信系统中确定随机接入资源的频率位置。
第一方面,本发明实施例提供了一种随机接入信号的发送方法,包括:终端设备接收来自网络设备的配置信息,配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽和随机接入资源的时长、随机接入资源的频率索引中至少一种,终端设备根据配置信息确定随机接入资源的频率位置,终端设备在随机接入资源的频率位置上向网络设备发送随机接入信号。
其中,随机接入资源为用于传输一个随机接入前导码所用的时频资源,随机接入资源是时域资源和频域资源组成的时频资源集合,随机接入资源在时域上占用一定时间,以及在频域上占用一定的带宽。随机接入资源配置图案表示指定的时频资源集合中所有可用的随机接入资源的位置分布情况,随机接入资源配置周期为该时频资源集合的时间长度,该时间长度可以用系统帧、子帧、时隙、微时隙mini-slot或OFDM(orthogonal frequency division multiplexing,正交频分复用)符号的数量来表示,随机接入资源配置图案周期性的出现。随机接入资源的频率位置表示随机接 入资源在频域上的绝对位置,随机接入资源的频率位置以RB(resource block,资源块)或RB group(resource block group,资源块组)为粒度。例如:在随机接入资源的带宽给定的情况下,随机接入资源的频率位置可以用随机接入资源的起始RB位置或中间RB位置来表示。初始频率偏移值表示随机接入资源配置图案中首个可用的随机接入资源的频率起始位置,例如:采用起始RB位置来表示。上行信道带宽表示发送上行数据的系统带宽,该带宽可用RB数量来表示。随机接入资源的带宽表示随机接入资源在频域上占用的带宽大小,例如:随机接入资源的带宽可用RB数量来表示。随机接入资源的时间表示随机接入资源在时域上的时间长度,该时间长度可用子帧数量、时隙数量或OFDM符号数量来表示;或者随机接入资源的时间表示随机接入资源所在的绝对时间位置,包括系统帧号、系统帧内的子帧号、子帧内的时隙号、时隙中的OFDM符号、OFDM符号中的时间位置(基本时间单位为粒度);或者随机接入资源所在随机接入资源配置周期内的相对位置,即位于随机接入资源配置周期内有T个时间位置上存在随机接入资源,随机接入资源的时间指相对位置0、1、…,、T-1。随机接入资源的频率索引表示随机接入资源在频域上的索引。终端设备从随机接入前导码集合中选择一个随机接入前导码在确定的随机接入资源的频率位置上发送该随机接入前导码,选择随机接入前导码的方法可以参考现有技术的记载,本申请不作限制。
其中,配置信息中的各个参数的值可由网络设备直接通知给终端设备,或者网络设备将参数的索引发送给终端设备。配置信息中的各个参数可以携带在一个消息中,也可以分别携带在多个消息中。例如:网络设备通过RRC(radio resource control,无线资源控制)信令、SI(system information,系统信息)、RMSI(remaining minimum system information,剩余最小系统信息)、NR SIB1(new radio system information block type1,新空口系统信息块类型1)、MAC-CE(media access control-control element,媒体访问控制-控制元素)信令、DCI(downlink control information,下行控制信息)、PBCH(physical broadcast channel,物理广播信道)或PDCCH order(physical downlink control channel,物理下行控制信道指令)中至少一种发送随机接入资源的时间,随机接入资源的时间可以是绝对时间,也可以时间的索引(例如:系统帧号、系统帧内的子帧号、子帧内的时隙号、时隙中的OFDM符号)。
其中,随机接入资源配置周期(PRACH configuration period/PRACH period/PRACH density)又称为随机接入周期。随机接入资源配置周期中包含多个时间、频率、前导或序列的随机接入资源,这些资源组成一个随机接入资源配置图案。随机接入资源配置周期也是随机接入资源配置图案重复出现的时间间隔。在一个随机接入资源配置周期中的随机接入资源,与一个下行信号集中所有实际传输的下行信号有关联。可以理解,下行信号关联的随机接入资源,以随机接入资源配置周期的时间长度重复出现。
根据以上的描述,终端设备根据网络设备配置的初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间和随机接入资源的频率索引中至少一种确定随机接入资源的频率位置,终端设备在确定的频率位置向网络设备发送随机接入信号,避免终端设备在发送随机接入信号时盲目尝 试随机接入资源的问题,提升随机接入过程的效率。
在一种可能的设计中,配置信息还包括:跳频偏移值。
其中,随机接入资源配置图案中的随机接入资源在频域上等间隔分布,跳频偏移值表示在相同时间内相邻的两个随机接入资源之间的频率位置差值。
在一种可能的设计中,终端设备根据配置信息确定随机接入前导码对应的随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000001
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000002
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000003
表示向下取整运算;mod表示取模运算;F RB为随机接入资源的频率位置,以RB为粒度。f start为初始频率偏移值,可以用随机接入资源配置图案中首个可用的随机接入资源的起始RB位置来表示。T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
根据以上的描述,终端设备采用跳频的方式向网络设备发送随机接入信号,这样终端设备能实现频率分集,提高随机接入信号传输的可靠性。
在一种可能的设计中,终端设备根据配置信息确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000004
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000005
Figure PCTCN2018116262-appb-000006
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000007
Figure PCTCN2018116262-appb-000008
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000009
Figure PCTCN2018116262-appb-000010
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000011
其中,
Figure PCTCN2018116262-appb-000012
表示向下取整运算,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,终端设备根据配置信息确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000013
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000014
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000015
表示向下取整运算,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间, f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
在一种可能的设计中,在上述所有公式中,T RA为随机接入资源配置周期的绝对时间长度,t RA为随机接入资源所在的绝对时间,例如:所述随机接入资源配置周期的绝对时间长度为5ms,10ms,20ms,40ms,80ms,160ms,320ms,640ms中的一种。
在一种可能的设计中,在上述所有公式中,f RA为随机接入资源所在初始接入上行信道带宽部分内的频率索引;或者f RA为随机接入资源所在上行信道带宽内的频率索引;或f start为预设值0。
在一种可能的设计中,配置信息还包括:实际发送的至少一个下行信号与随机接入资源配置图案中随机接入资源的映射关系。
其中,实际发送的至少一个下行信号为网络设备用于下行同步发送的信号,下行信号可以指同步信号块(synchronization signal block,SS block)、信道状态信息参考信号(channel state information reference signal,CSI-RS)中的至少一种。SS block可以对应一个或多个OFDM符号。SS block中包含以下至少一项:主同步信号(primary synchronization signal,PSS)、辅同步信号(secondary synchronization signal,SSS)、物理广播信号(physical broadcast channel block,PBCH)、解调参考信号(demodulation reference signal,DMRS);SS block也可以称为SS/PBCH block。SS block或者SS/PBCH block中的多个信号可以是以相同的天线端口发送。映射关系也称关联关系,实际发送的至少一个下行信号可以与多个随机接入资源之间有关联关系,或者实际发送的至少一个下行信号只与1个随机接入资源之间具有映射关系,根据映射关系的不同,终端设备确定随机接入资源的方法不同。
在一种可能的设计中,配置信息还包括:随机接入前导码的格式和/或实际发送的至少一个信号的数量。
在一种可能的设计中,配置信息还包括:帧结构类型、上行/下行配置信息、或双工方式。
其中,帧结构类型包括TDD帧或FDD帧,上行/下行配置信息包括上行时隙、下行时隙、未确定时隙的数量以及周期信息,双工方式包括全双工、TDD或FDD。
第二方面,本申请提供了一种随机接入信号的接收方法,包括:
网络设备向终端设备发送配置信息,其中,配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的频率索引中至少一种,网络设备根据配置信息确定随机接入资源的频率位置,网络设备在随机接入资源的频率位置接收来自终端设备的随机接入信号。
其中,配置信息中的各个参数的值可由网络设备直接通知给终端设备,或者网络设备将参数的索引发送给终端设备。配置信息中的各个参数可以携带在一个消息中,也可以携带在多个消息中。例如:网络设备通过RRC信令、SI、RMSI、NR SIB1、MAC-CE信令、DCI(downlink control information,下行控制信息)、PBCH或PDCCH order中至少一种发送随机接入资源的时间,随机接入资源的时间可以是绝对时间,也可以时间的索引(例如:系统帧号、系统帧内的子帧号、子帧内的时隙号、时隙中的OFDM符号)。
根据以上的描述,网络设备根据初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的频率索引中至少一种确定随机接入资源的频率位置,这样网络设备能在随机接入资源上接收到终端设备发送的随机接入信号,避免波束不匹配的问题,提高随机接入信号的效率。
在一种可能的设计中,配置信息还包括:跳频偏移值。
在一种可能的设计中,网络设备根据配置信息确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000016
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000017
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000018
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,网络设备根据配置信息确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000019
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000020
Figure PCTCN2018116262-appb-000021
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000022
Figure PCTCN2018116262-appb-000023
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000024
Figure PCTCN2018116262-appb-000025
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000026
其中,
Figure PCTCN2018116262-appb-000027
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,网络设备根据配置信息确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000028
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000029
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000030
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
在一种可能的设计中,网络设备根据配置信息确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000031
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000032
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000033
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
在一种可能的设计中,配置信息还包括:实际发送的至少一个下行信号与随机接入配置图案中随机接入资源的映射关系。
在一种可能的设计中,配置信息还包括:随机接入信号对应的随机接入前导码格式和/或实际发送的至少一个信号的数量。
在一种可能的设计中,配置信息还包括随机接入信号对应的系统帧结构、上下行配置信息、双工方式中至少一种。
第三方面,本申请提供了一种随机接入信号的发送方法,包括:
终端设备根据随机接入资源的子载波偏移值和随机接入资源的资源块位置确定随机接入资源的频率位置,终端设备在随机接入资源所在的频率位置上向网络设备发送随机接入信号。
其中,随机接入资源的频率位置表示随机接入资源在频域上的绝对位置,以子载波或RE(resource element,资源粒子)为粒度。随机接入资源的资源块位置表示随机接入资源所在资源块的位置,随机接入资源块的资源块位置是粗粒度的频率位置,并不能准确的表示随机接入资源频率位置,例如:随机接入资源的资源块位置表示随机接入资源的起始RB位置或中间RB的位置。子载波偏移值表示相对于随机接入资源的资源块位置的子载波偏移量,该子载波偏移值可以是正值,也可以是负值,子载波偏移值也可称为RE偏移值。
根据以上的描述,终端设备根据随机接入资源的资源块位置和子载波偏移值确定随机接入资源的频率位置,这样终端设备能以子载波或RE为粒度使用频率资源,提高频率资源的利用率。
在一种可能的设计中,终端设备根据随机接入资源的子载波偏移值和随机接入资源的资源块位置确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000034
其中,F SC是随机接入资源的频率位置,以子载波或RE为粒度。F RB为随机接入资源的资源块位置,以RB或RB group为粒度。
Figure PCTCN2018116262-appb-000035
为一个RB内包含的子载波数量。M是子载波偏移值。
在一种可能的设计中,子载波偏移值和实际发送的至少一个下行信号的偏移值相同;或
子载波偏移值与随机接入资源配置图案中首个可用的随机接入资源的频率索引和/或载波频率相关;或
子载波偏移值由指示信息来指示;或
子载波偏移值为预存储或预配置的值。
其中,指示信息包括RRC信令、SI、RMSI、NR SIB1、MAC-CE信令、DCI(downlink control information,下行控制信息)、PBCH或PDCCH order中至少一种。例如:网络设备通过RRC信令来指示子载波偏移值的获取方式,然后通过DCI来指示具体偏移值。
在一种可能的设计中,终端设备根据随机接入资源的子载波偏移值和资源块位置确定随机接入资源的频率位置之前,还包括:
终端设备接收来自网络设备的配置信息,配置信息包括:初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间、随机接入资源的频率索引中至少一种。终端设备根据配置信息确定随机接入资源的资源块位置。
在一种可能的设计中,终端设备根据随机接入资源的子载波偏移和资源块位置确定随机接入资源的频率位置之前,还包括:
终端设备接收来自网络设备的随机接入资源块位置。
在一种可能的设计中,配置信息还包括:跳频偏移值。
其中,配置信息中的各个参数的值可由网络设备直接通知给终端设备,或者网络设备将参数的索引发送给终端设备。配置信息中的各个参数可以携带在一个消息中,也可以携带在多个消息中。例如:网络设备通过RRC信令、SI、RMSI、NR SIB1、MAC-CE信令、DCI(downlink control information,下行控制信息)、PBCH或PDCCH order中至少一种发送随机接入资源的时间,随机接入资源的时间可以是绝对时间,也可以时间的索引(例如:系统帧号、系统帧内的子帧号、子帧内的时隙号、时隙中的OFDM符号)。
在一种可能的设计中,终端设备根据配置信息确定随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000036
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000037
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000038
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,终端设备根据配置信息确定随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000039
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000040
Figure PCTCN2018116262-appb-000041
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000042
Figure PCTCN2018116262-appb-000043
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000044
Figure PCTCN2018116262-appb-000045
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000046
其中,
Figure PCTCN2018116262-appb-000047
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,终端设备根据配置信息确定随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000048
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000049
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000050
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
在一种可能的设计中,配置信息还包括实际发送的至少一个下行信号和随机接入资源配置图案中的随机接入资源的映射关系。
在一种可能的设计中,配置信息还包括:随机接入信号对应的随机接入前导码的格式和/或实际发送的至少一个下行信号的数量。
在一种可能的设计中,配置信息还包括帧结构、上下行配置信息、双工方式中至少一种。
第四方面,本发明实施例提供了一种随机接入信号的接收方法,包括:
网络设备根据随机接入资源的子载波偏移值和资源块位置确定随机接入资源的频率位置,网络设备在随机接入资源的频率位置上接收来自终端设备的随机接入信号。
在一种可能的设计中,网络设备根据随机接入资源的子载波偏移值和资源块位置确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000051
其中,F SC是所述随机接入资源的频率位置,F RB是所述随机接入资源所在的资源块位置,
Figure PCTCN2018116262-appb-000052
为资源块RB内的子载波数量,M为所述子载波偏移值。
在一种可能的设计中,子载波偏移值和实际发送的至少一个下行信号的偏移值相同;或
子载波偏移值与随机接入资源配置图案中首个可用的随机接入资源的频率索引和/或载波频率相关;或
子载波偏移值由指示信息来指示,该指示信息不用于指示实际发送的至少一个下行信号的偏移值;或
子载波偏移值为预存储或预配置的值。
其中,指示信息包括RRC信令、SI、RMSI、NR SIB1、MAC-CE信令、DCI、PBCH或PDCCH order中至少一种。例如:网络设备通过RRC信令来指示子载波偏移值的获取方式,然后通过DCI来指示具体偏移值。
在一种可能的设计中,网络设备根据随机接入资源的子载波偏移值和资源块位置确定随机接入资源的频率位置之前,还包括:
网络设备向终端设备发送配置信息;配置信息包括:初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间、随机接入资源的频率索引中至少一种。
在一种可能的设计中,网络设备根据随机接入资源的子载波偏移值和资源块位置确定随机接入资源的频率位置之前,还包括:
网络设备根据配置信息确定随机接入资源的资源块位置;其中,配置信息包括初始频率偏移值,随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间、随机接入资源的频率索引中至少一种;网络设备向终端设备发送随机接入资源的资源块位置。
在一种可能的设计中,配置信息还包括:跳频偏移值。
其中,配置信息中的各个参数的值可由网络设备直接通知给终端设备,或者网络设备将参数的索引发送给终端设备。配置信息中的各个参数可以携带在一个消息中,也可以携带在多个消息中。例如:网络设备通过RRC信令、SI、RMSI、NR SIB1、MAC-CE信令、DCI(downlink control information,下行控制信息)、PBCH或PDCCH order中至少一种发送随机接入资源的时间,随机接入资源的时间可以是绝对时间,也可以时间的索引(例如:系统帧号、系统帧内的子帧号、子帧内的时隙号、时隙中的OFDM符号)。
在一种可能的设计中,网络设备根据配置信息确定接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000053
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000054
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000055
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,网络设备根据配置信息确定随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000056
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000057
Figure PCTCN2018116262-appb-000058
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000059
Figure PCTCN2018116262-appb-000060
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000061
Figure PCTCN2018116262-appb-000062
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000063
其中,
Figure PCTCN2018116262-appb-000064
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,网络设备根据配置信息确定随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000065
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000066
的情况下,F RB=(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000067
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
在一种可能的设计中,在上述所有公式中,T RA为随机接入资源配置周期的绝对时间长度,t RA为随机接入资源所在的绝对时间,例如:所述随机接入资源配置周期的绝对时间长度为5ms,10ms,20ms,40ms,80ms,160ms,320ms,640ms中的一种。
在一种可能的设计中,在上述所有公式中,f RA为随机接入资源所在初始接入上行信道带宽部分内的频率索引;或者f RA为随机接入资源所在上行信道带宽内的频率索引;或f start为预设值0。
在一种可能的设计中,配置信息还包括:实际发送的至少一个下行信号与随机接入资源配置图案中随机接入资源的映射关系。
在一种可能的设计中,配置信息还包括:随机接入信号对应的随机接入前导码格式和/或实际发送的至少一个下行信号的数量。
在一种可能的设计中,配置信息还包括:帧结构、上下行配置信息、双工方式中的至少一种。
第五方面,本申请提供了一种随机接入信号的发送装置,包括:接收单元、处理单元和发送单元。接收单元用于接收来自网络设备的配置信息;其中,所述配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、所述随机接入资源的时间、所述随机接入资源的频率索引中至少一种。处理单元用于根据所述配置信息确定所述随机接入资源的频率位置,。发送单元用于在所述随机接入资源的频率位置上向所述网络设备发送随机接入信号。
在一种可能的设计中,所述配置信息还包括:跳频偏移值。
在一种可能的设计中,处理单元,用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000068
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000069
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000070
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,处理单元,用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000071
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000072
Figure PCTCN2018116262-appb-000073
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000074
Figure PCTCN2018116262-appb-000075
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000076
Figure PCTCN2018116262-appb-000077
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000078
其中,
Figure PCTCN2018116262-appb-000079
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,处理单元,用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000080
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000081
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000082
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
在一种可能的设计中,所述配置信息还包括:实际发送的至少一个下行信号与所述随机接入资源配置图案中随机接入资源的映射关系。
在一种可能的设计中,所述配置信息还包括:所述随机接入信号对应的随机接入前导码格式和/或实际发送的至少一个下行信号的数量。
在一种可能的设计中,所述配置信息还包括:所述随机接入前导码对应的系统 帧结构、上下行配置信息、双工方式中的至少一种。
第六方面,本申请提供了一种随机接入信号的接收装置,包括:发送单元、处理单元和接收单元。发送单元用于向终端设备发送配置信息;其中,所述配置信息包括:初始频率偏移值、随机接入资源配置周期、上行信道带宽、所述随机接入资源的带宽、所述随机接入资源的频率索引中至少一种。处理单元用于根据所述配置信息确定随机接入资源的频率位置。接收单元用于在所述随机接入资源的频率位置接收来自所述终端设备的随机接入信号。
在一种可能的设计中,所述配置信息还包括:跳频偏移值。
在一种可能的设计中,处理单元用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000083
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000084
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000085
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,处理单元用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000086
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000087
Figure PCTCN2018116262-appb-000088
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000089
Figure PCTCN2018116262-appb-000090
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000091
Figure PCTCN2018116262-appb-000092
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000093
其中, 表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,处理单元用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000095
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000096
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000097
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上 行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
在一种可能的设计中,所述配置信息还包括:实际发送的至少一个下行信号与所述随机接入资源配置图案中随机接入资源的映射关系。
在一种可能的设计中,所述配置信息还包括:所述随机接入信号对应的随机接入前导码格式和/或实际发送的至少一个下行信号的数量。
在一种可能的设计中,所述配置信息还包括:所述随机接入前导码对应的系统帧结构、上下行配置信息、双工方式中的至少一种。
第七方面,本申请提供了一种随机接入信号的发送装置,包括:处理单元和发送单元。
处理单元用于根据随机接入资源的子载波偏移值和资源块位置确定所述随机接入资源的频率位置。发送单元用于在所述随机接入资源的频率位置上向所述网络设备发送所述随机接入信号。
在一种可能的设计中,处理单元,用于根据随机接入资源的子载波偏移值和资源块位置确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000098
其中,F SC是所述随机接入资源的频率位置,F RB是所述随机接入资源所在的资源块位置,
Figure PCTCN2018116262-appb-000099
为资源块RB内的子载波数量,M为所述子载波偏移值。
在一种可能的设计中,所述子载波偏移值与实际发送的至少一个下行信号的偏移值相同;或
所述子载波偏移值与所述随机接入资源对应的随机接入资源配置图案的首个随机接入资源的频率索引和/或载波频率有关;或
所述子载波偏移值由以下指示信息来指示:
无线资源控制RRC信令、系统信息SI、剩余系统信息RMSI、新空口系统信息块1NR SIB1、MAC-CE信令、下行控制信息DCI、物理广播信道PBCH、PDCCH order中至少一种。
在一种可能的设计中,终端设备还包括接收单元,接收单元,用于接收来自网络设备的配置信息;其中,所述配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、所述随机接入资源的带宽、所述随机接入资源的时间、所述随机接入资源的频率索引中至少一种;
处理单元,还用于根据所述配置信息确定所述随机接入资源的资源块位置;或
在一种可能的设计中,装置还包括:接收单元,用于接收来自网络设备的所述随机接入资源的资源块位置。
在一种可能的设计中,所述配置信息还包括:跳频偏移值。
在一种可能的设计中,处理单元用于根据所述配置信息确定所述随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000100
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000101
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000102
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,处理单元用于根据所述配置信息确定所述随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000103
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000104
Figure PCTCN2018116262-appb-000105
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000106
Figure PCTCN2018116262-appb-000107
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000108
Figure PCTCN2018116262-appb-000109
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000110
其中,
Figure PCTCN2018116262-appb-000111
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,处理单元用于根据所述配置信息确定所述随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000112
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000113
的情况下,F RB=(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000114
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
在一种可能的设计中,所述配置信息还包括:实际发送的至少一个下行信号与随机接入资源配置图案中的随机接入资源的映射关系。
在一种可能的设计中,所述配置信息还包括:所述随机接入信号对应的随机接入前导码格式和/或所述实际发送的至少一个下行信号的数量。
在一种可能的设计中,所述配置信息还包括:帧结构、上下行配置信息、双工方式中的至少一种。
第八方面,本申请提供了一种随机接入信号的接收装置,包括:处理单元和接收单元。
处理单元用于根据随机接入资源的资源块位置和子载波偏移确定所述随机接入资源的频率位置。接收单元用于在所述随机接入资源的频率位置接收来自终端设备的随机接入信号。
在一种可能的设计中,处理单元,用于根据随机接入资源的子载波偏移值和资源块位置确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000115
其中,F SC是所述随机接入资源的频率位置,F RB是所述随机接入资源所在的资源块位置,
Figure PCTCN2018116262-appb-000116
为资源块RB内的子载波数量,M为所述子载波偏移值。
在一种可能的设计中,所述子载波偏移值与实际发送的至少一个下行信号的偏移值相同;或
所述子载波偏移值与所述随机接入资源对应的随机接入资源配置图案的首个随机接入资源的频率索引和/或载波频率有关;或
所述子载波偏移值由以下指示信息来指示:
无线资源控制RRC信令、系统信息SI、剩余系统信息RMSI、新空口系统信息块1NR SIB1、MAC-CE信令、下行控制信息DCI、物理广播信道PBCH、PDCCH order中至少一种;
其中,所述指示信息不用于指示实际发送的至少一个下行信号的偏移值。
在一种可能的设计中,装置还包括发送单元,发送单元,用于向终端设备发送配置信息;配置信息包括:初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间、随机接入资源的频率索引中至少一种;或
在一种可能的设计中,装置还包括发送单元,处理单元,还用于确定随机接入资源的资源块位置;其中,配置信息包括初始频率偏移值,随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间、随机接入资源的频率索引中至少一种;发送单元,用于向终端设备发送随机接入资源的资源块位置。
在一种可能的设计中,配置信息还包括:跳频偏移值。
在一种可能的设计中,处理单元,用于根据配置信息确定接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000117
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000118
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000119
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,处理单元,用于根据配置信息确定随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000120
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000121
Figure PCTCN2018116262-appb-000122
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000123
Figure PCTCN2018116262-appb-000124
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000125
Figure PCTCN2018116262-appb-000126
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000127
其中,
Figure PCTCN2018116262-appb-000128
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
在一种可能的设计中,处理单元,用于根据配置信息确定随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000129
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000130
的情况下,F RB=(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000131
表示向下取整,mod表示取模运算,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
在一种可能的设计中,配置信息还包括:实际发送的至少一个下行信号与随机接入资源配置图案中随机接入资源的映射关系。
在一种可能的设计中,配置信息还包括:随机接入信号对应的随机接入前导码格式和/或实际发送的至少一个下行信号的数量。
在一种可能的设计中,配置信息还包括:帧结构、上下行配置信息、双工方式中的至少一种。
第九方面,本申请提供一种随机接入信号的发送装置,所述装置包括处理器和存储器,存储器用于存储程序,处理器调用存储器存储的程序,以执行本申请第一方面提供的方法。
第十方面,本申请提供一种随机接入信号的接收装置,所述装置包括处理器和存储器,存储器用于存储程序,处理器调用存储器存储的程序,以执行本申请第二方面提供的方法。
第十一方面,本申请提供一种随机接入的发送装置,所述装置包括处理器和存储器,存储器用于存储程序,处理器调用存储器存储的程序,以执行本申请第三方面提供的方法。
第十二方面,本申请提供一种随机接入信号的接收装置,所述装置包括处理器和存储器,存储器用于存储程序,处理器调用存储器存储的程序,以执行本申请第四方面提供的方法。
第十三方面,本申请提供一种计算机存储介质,其包含用于执行上述方面所设计的程序。
第十四方面,本申请实施例提供了一种计算机程序产品,该计算机程序包括指令,当该计算机程序被计算机执行时,使得计算机可以执行上述第一方面或第四方面中任意一项的信息发送方法中的流程。
附图说明
为了更清楚地说明本发明实施例或背景技术中的技术方案,下面将对本发明实施例或背景技术中所需要使用的附图进行说明。
图1是本发明实施例提供的一种通信系统的网络架构图;
图2a是本发明实施例提供的一种随机接入信号的发送方法的流程示意图;
图2b是本发明实施例提供的一种随机接入资源配置图案的示意图;
图2c是本发明实施例提供的一种随机接入资源配置图案的另一示意图;
图2d是本发明实施例提供的一种跳频发送的示意图;
图2e是本发明实施例提供的一种发送下行信号的位置分布图;
图3a是本发明实施例提供的一种随机接入信号的发送方法的另一流程示意图;
图3b是本发明实施例提供的一种随机接入资源的频域位置示意图;
图4是本发明实施例提供的一种随机接入信号的发送方法的另一流程示意图;
图5是本发明实施例提供的一种随机接入信号的发送装置的结构示意图;
图6是本发明实施例提供的一种随机接入信号的接收装置的结构示意图;
图7是本发明实施例提供的一种随机接入信号的发送装置的另一结构示意图;
图8是本发明实施例提供的一种随机接入信号的接收装置的另一结构示意图;
图9是本发明实施例提供的一种装置的结构示意图。
具体实施方式
本申请实施例可以应用于无线通信系统,需要说明的是,本申请实施例提及的无线通信系统包括但不限于:窄带物联网系统(Narrow Band-Internet of Things,NB-IoT)、全球移动通信系统(Global System for Mobile Communications,GSM)、增强型数据速率GSM演进系统(Enhanced Data rate for GSM Evolution,EDGE)、宽带码分多址系统(Wideband Code Division Multiple Access,WCDMA)、码分多址2000系统(Code Division Multiple Access,CDMA2000)、时分同步码分多址系统(Time Division-Synchronization Code Division Multiple Access,TD-SCDMA),长期演进系统(Long Term Evolution,LTE)、NR(New Radio,新空口)通信系统以及下一代5G移动通信系统的三大应用场景增强型移动宽带(Enhanced Mobile Broad Band,eMBB)、URLLC以及大规模机器通信(Massive Machine-Type Communications,mMTC)。
在本申请实施例中,终端设备(terminal device)包括但不限于移动台(MS,Mobile Station)、移动终端设备(Mobile Terminal)、移动电话(Mobile Telephone)、手机(handset)及便携设备(portable equipment)等,该终端设备可以经无线接入网(RAN, Radio Access Network)与一个或多个核心网进行通信,例如,终端设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等,终端设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置或设备。
图1为本申请提供的一种通信系统架构示意图。
如图1所示,通信系统01包括网设备101和终端设备102。当通信系统01包括核心网时,该网络设备101还可以与核心网相连。网络设备101还可以与互联网协议(Internet Protocol,IP)网络200进行通信,例如,因特网(internet),私有的IP网,或其它数据网等。网络设备为覆盖范围内的终端设备提供服务。例如,参见图1所示,网络设备101为网络设备101覆盖范围内的一个或多个终端设备提供无线接入。另外,网络设备之间还可以可以互相通信。
网络设备101可以是用于与终端设备进行通信的设备。例如,可以是GSM系统或CDMA系统中的基站(Base Transceiver Station,BTS),也可以是WCDMA系统中的基站(NodeB,NB),还可以是LTE系统中的演进型基站(Evolved Node B,eNB或eNodeB)或未来5G网络中的网络侧设备等。或者该网络设备还可以是中继站、接入点、车载设备等。在终端设备对终端设备(Device to Device,D2D)通信系统中,该网络设备还可以是担任基站功能的终端设备。终端设备可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备,以及各种形式的用户设备(user equipment,UE),移动台(mobile station,MS)等。
其中,在NR通信系统中,随机接入前导码的格式分为两个类别,序列长度为839时,随机接入前导码有4种格式,分别为格式0至格式3,如表1所示:
Figure PCTCN2018116262-appb-000132
表1
序列长度为127或139时,随机接入前导码的格式有10种格式,如表2所示:
Figure PCTCN2018116262-appb-000133
Figure PCTCN2018116262-appb-000134
表2
其中,u=1、2或3。另外,NR通信系统中还定义了随机接入前导码对应的随机接入资源的带宽分配和保护子载波的数量,如表3所示:
Figure PCTCN2018116262-appb-000135
表3
NR通信系统中虽然定义多种格式的随机接入前导码以及分配的带宽的大小,但是并没有合适的确定随机接入资源的频率位置的方法,为了解决上述问题,本发明实施例提供了一种随机接入信号的发送方法,包括:终端设备根据网络设备配置的初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的时间、随机接入资源的频率索引中至少一种确定随机接入资源的频率位置,避免终端设备盲目的尝试随机接入资源的频率位置,网络设备也能在对应的随机接入资源上接收到随机接入信号,提升随机接入过程的效率。
应理解,所述提到的由网路设备配置的信息可以是配置一个索引信息,根据索引查表获取具体的信息,也可以是直接配置一个具体的信息。
参见图2a,为本发明实施例提供的一种随机接入信号的发送方法的流程示意图,在本发明实施例中,所述方法包括:
S201、网络设备向终端设备发送配置信息,终端设备接收来自网络设备的配置信息。
具体的,配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间、随机接入资源的频率索引中至少一种。随机接入资源为用于传输一个随机接入前导码所用的时频资源,随机接入资源在时域上占用一定时间,以及在频域上占用一定的带宽。随机接入资源配置图案表示指定的时频资源集合中所有可用的随机接入资源的时间、频率位置分布情况,随机接入资源配置周期为该时频资源集合周期性重复出现的时间长度,随机接入资源配置 周期可以用系统帧、子帧、时隙或OFDM符号的数量来表示,随机接入资源配置图案周期性的进行重复。上行信道带宽表示终端设备进行上行发送使用的系统带宽,上行信道带宽的大小可以用RB的数量来表示。随机接入资源的带宽表示随机接入资源在频域上占用的频率资源大小,带宽可以用RB的数量来表示。随机接入资源的时间表示随机接入资源在时域上占用的时间长度,该时间长度可以用子帧数量、时隙数量或OFDM符号数量来表示;或者随机接入资源的时间表示随机接入资源所在的绝对时间位置,包括系统帧号、系统帧内的子帧号、子帧内的时隙号、时隙中的OFDM符号、OFDM符号中的时间位置(基本时间单位为粒度);或者随机接入资源所在随机接入资源配置周期内的相对位置,即位于随机接入资源配置周期内有T个时间位置上存在随机接入资源,随机接入资源的时间指相对位置0、1、…、T-1。随机接入资源的频率索引表示随机接入资源在频域上的索引。
其中,配置信息中的各个参数的值可由网络设备直接通知给终端设备,或者网络设备将参数的索引发送给终端设备。配置信息中的各个参数可以携带在一个消息中,也可以携带在多个消息中。例如:网络设备通过RRC信令、SI、RMSI、NR SIB1、MAC-CE信令、DCI(downlink control information,下行控制信息)、PBCH或PDCCH order中至少一种发送随机接入资源的时间,随机接入资源的时间可以是绝对时间,也可以时间的索引(例如:系统帧号、系统帧内的子帧号、子帧内的时隙号、时隙中的OFDM符号)。
其中,针对随机接入资源配置图案,随机接入资源配置图案的时间长度为随机接入前导码对应子载波间隔下的K个时隙,K为正整数。可选的,随机接入资源配置图案的时间长度根据实际传输的至少一个下行信号确定,当实际传输的至少一个下行信号的数量越多并且实际传输的至少一个下行信号关联的随机接入资源的数量越多的情况下,随机接入资源配置图案的时间长度越长,反之随机接入资源配置图案的的实际长度越短。可选的,随机接入资源配置周期的时间长度为0.125ms、0.25ms、0.5ms、2ms、1ms、5ms、10ms、20ms、40ms、80ms、160ms、320ms中的至少一种,其中0.125ms指120kHz对应的一个时隙,0.25ms指60kHz对应的一个时隙或者120kHz对应的2个时隙。网络设备可以直接将随机接入配置周期的时间长度通知给终端设备,例如:直接将0.125ms通知给终端设备;网络设备也可以将时间长度的索引通知给终端设备,例如:0.125ms的索引为1,0.25ms的索引为2,以此类推,网络设备将随机接入配置周期的长度配置为0.125ms时,将0.125的索引1通知给终端设备。可选的,随机接入资源配置周期与随机接入资源配置图案的时间长度分别由网络设备配置。可选的,根据随机接入配置索引分别获取随机接入资源配置周期与随机接入资源配置图案的时间长度。可选的,根据随机接入配置索引获取随机接入资源配置周期,根据网络设备的配置信息获取随机接入资源配置图案的时间长度;可选的,根据随机接入配置索引获取随机接入资源配置图案的时间长度,根据网络设备的配置信息获取随机接入资源配置周期的时间长度。
其中,配置信息可由RRC(radio resource control,无线资源控制)信令、SI(system information,系统信息)、RMSI(remaining minimum system information,剩余最小系统信息)、NR SIB1(new radio system information block type1,新空口系统信息块 类型1)、MAC-CE(media access control-control element,媒体访问控制-控制元素)信令、DCI(downlink control information,下行控制信息)、PBCH(physical broadcast channel,物理广播信道)或PDCCH order(physical downlink control channel,物理下行控制信道指令)中至少一种来指示。
示例性的,参见图2b所示,为本发明实施例提供的一种随机接入资源配置图案的示意图,随机接入资源配置图案表示随机接入资源配置周期和上行信道带宽构成的时频资源集合中所有可用的随机接入资源的位置分布情况。随机接入资源配置图案对应的时频资源集合(以下简称时频资源集合)中所有可用的随机接入资源根据一定的规则进行编号,每个随机接入资源的编号即为随机接入资源的索引,每个随机接入资源对应不同的索引。其中,时频资源集合中随机接入资源的编号规则可以是:先频域后时域(图2b所示的编号方法),或先时域后频域,或采用其他方式进行编号。时频资源集合中每个随机接入资源在频域上对应1个索引(即随机接入资源的频率索引),其中,对随机接入资源在频域上进行编号的方法可以是:根据频率大小以固定步长进行递增编号,或者根据频率大小以固定步长进行递减编号,或者采用其他方式进行编号,本实施例不作限制。初始频率偏移值为时频资源集合中首个可用的随机接入资源(索引为0的随机接入资源)的频率位置,例如:该频率位置使用随机接入资源0的起始频率和上行信道带宽的最小频率之间的差值来表示,再例如,初始频率偏移值固定为0,此时不需要网络设备通知给终端设备。又例如:参见图2c的随机接入资源的索引以及频率索引的编号规则,其中,F为大于1的偶数。
在一种可能的实施方式中,配置信息还包括:跳频偏移值。
具体的,跳频偏移值表示随机接入资源对应的时频资源集合中的同一时间内相邻的两个随机接入资源的频率偏移值。例如:参见图2b所示,跳频偏移值表示随机接入资源0和随机接入资源1之间的频率偏移值。可以理解的是,时频资源集合中在频域上相邻的任意两个随机接入资源之间的跳频偏移值相等。
在一种可能的实施方式中,网络设备可根据如下的系统信息(System Information,SI)来指示初始频率偏移值f start和/或跳频偏移值f offset
prach-FreqOffset INTEGER(0…N1)optional
prach-HoppingOffset INTERGER(0…N2)optional
其中,prach-FreqOffset为初始频率偏移值,取值范围为1~N1,prach-HoppingOffset位跳频偏移值,取值范围为0~N2,N1,N2均为正整数。
在另一种可能的实施方式中,跳频偏移值f offset根据网络设备的指示信息、和/或随机接入资源的带宽N RA、上行初始接入频段的子载波间隔SCS BWP、上行信道带宽子载波间隔SCS UL中的至少一个确定。例如:网络设备的指示信息为X时,f offset=X×N RA
Figure PCTCN2018116262-appb-000136
或f offset=X×SCS BWP,或f offset=X×SCS UL
S202、终端设备根据配置信息确定随机接入资源的频率位置。
具体的,随机接入资源的频率位置表示随机接入资源在频域上的绝对位置,随机接入资源的频率位置以RB或RB group为粒度,随机接入资源的起始频率和RB的起始频率对齐。例如:随机接入资源的带宽为固定值的情况下,随机接入资源的频 率位置使用随机接入资源的起始RB的频率位置或中间RB的频率位置来表示。
在一种可能的实施方式中,终端设备根据初始频率偏移值、随机接入资源的时间、随机接入资源配置周期、随机接入资源的带宽、上行信道带宽以及网络设备配置的数值N或者标准预设常数N确定随机接入资源的频率位置。例如,N=2时,可以根据如下的第一公式确定随机接入资源的频率位置。
第一公式:
Figure PCTCN2018116262-appb-000137
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000138
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000139
表示向下取整运算符,mod表示取模运算符。F RB为随机接入资源的频率位置。f start为初始频率偏移值。T RA为随机接入资源配置周期。N RB为上行信道带宽,可以理解为上行随机接入过程所在的信道带宽,也可以成为上行初始接入带宽部分(initial active uplink bandwidth part)。N RA是随机接入资源的带宽,t RA为随机接入资源的时间。f RA为随机接入资源的频率索引。如下图所示。在另外的实现方式中,初始频率偏移值f start固定为0,不需要配置。
参见图2d,为本发明实施例的一种跳频方式,终端设备在不同随机接入资源配置周期之间以跳频的方式发送随机接入信号。图2c可表示另一种跳频方式发送随机接入信号的方式:终端设备在随机接入的时间上进行跳频发送,根据频率索引0、频率索引1、频率索引2、…以1为步长选择频率进行跳频,可选的,终端设备还可以是在子帧内进行跳频发送、半静态上行或下行UL/DL周期之间进行跳频发送或时隙内进行跳频发送,本实施例不作限制。可选的图2c和图2d的跳频方式可以结合使用。
本发明实施例中,T RA可以理解为随机接入资源配置周期的绝对时间长度,此时t RA可以理解成随机接入资源所在的绝对时间;T RA也可以理解为随机接入资源配置周期的随机接入资源在时间上的数量,此时t RA可以理解成随机接入资源所在N个随机接入资源配置周期内的相对时间,或者逻辑的时间索引;T RA还可以理解为随机接入资源配置周期的随机接入资源在时间和频率上的数量,此时t RA可以理解成随机接入资源所在N个随机接入资源配置周期内的相对或者逻辑的资源索引,所述N>1。例如,T RA和/或t RA为帧、子帧、时隙、OFDM符号中的一种或者多种绝对时间或者逻辑时间的索引。
在另一种可能的实施方式中,终端设备根据随机接入资源的时间、随机接入资源配置周期、随机接入资源的频率索引、初始频率偏移值、上行信道带宽、随机接入资源的带宽和基站配置或者预设常数N确定随机接入资源的频率位置。例如,N=2时,可以根据如下的第二公式确定随机接入资源所在的频率位置。
第二公式:
Figure PCTCN2018116262-appb-000140
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000141
Figure PCTCN2018116262-appb-000142
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000143
Figure PCTCN2018116262-appb-000144
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000145
Figure PCTCN2018116262-appb-000146
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000147
其中,
Figure PCTCN2018116262-appb-000148
为向下取整运算符,mod表示取模运算符。F RB为随机接入资源的频率位置,f start为初始频率偏移值。T RA为随机接入资源配置周期。N RB为上行信道带宽。N RA是随机接入资源的带宽。t RA为随机接入资源的时间。f RA为随机接入资源的频率索引。
在另一种可能的实施方式中,终端设备根据随机接入资源的时间、随机接入资源配置周期、随机接入资源的带宽、初始频率偏移值、随机接入资源的频率索引、跳频偏移值以及由网络设备配置的数值N或者预设常数N确定随机接入资源的频率位置。例如,N=2时,可以根据如下的第三公式确定随机接入资源所在的频率位置。
第三公式:
Figure PCTCN2018116262-appb-000149
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000150
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000151
为向下取整运算符,mod表示取模运算符。F RB为随机接入资源的频率位置,f start为初始频率偏移值,T RA为随机接入资源配置周期,N RB为上行信道带宽,N RA是随机接入资源的带宽,t RA为随机接入资源的时间,f RA为随机接入资源的频率索引,f offset为跳频偏移值。
本发明实施例中,随机接入资源的频率索引f RA可以理解成:在该随机接入资源所在时间上的逻辑的频率索引。f RA与随机接入资源所在的物理频率一一对应。在一种可能的实现方式中,f RA随着随机接入资源所在的物理频率位置的增加而增加;在另外一种实现方式中,根据预设的规则、图案、公式确定索引为f RA的随机接入资源对应的物理频率位置。在一种实现方式中,f RA为上行载波频率、上行信道带宽、初始接入上行信道带宽部分、上行信道带宽部分中的逻辑频率的索引,例如,f RA为随机接入资源所在初始接入上行信道带宽部分中的索引;再例如,f RA为随机接入资源所在上行载波中的至少一个初始接入上行信道带宽部分中的索引,即如果所述上行载波(和/或者对应的上行信道带宽)中有多个初始接入上行信道带宽部分,则多个初始接入上行信道部分带宽中的随机接入资源可以一起进行索引;再例如,f RA为随机接入资源所在上行载波中的至少一个初始接入上行信道带宽部分中的索引,即如果所述上行载波或者上行信道带宽中有多个初始接入上行信道带宽部分,则多个初始接入上行信道带宽部分中的随机接入资源可以一起进行索引;再例如,小区有多个上行载波,f RA为所有上行随机接入资源中的逻辑频率索引。
本发明实施例中,如果随机接入资源的频率只有一个,即索引f RA=0,可以认为 该索引不参与确定随机接入资源的频率位置。
在另一种可能的实施方式中,配置信息还包括:实际发送的至少一个下行信号的随机接入资源配置图案中随机接入资源的映射关系。
具体的,实际发送的下行信号为网络设备用于下行同步发送的信号,下行信号包括但不限于SS/PBCH block、DMRS、CSI-RS中任意一种。如图2e,为网络设备实际发送的下行信号的位置分布图,下行信号为SS/PBCH block,8个SS/PBCH block组成一个下行信号组,图2e中的矩形框表示网络设备所有可用的用于发送下行信号的时频资源,可以看出,网络设备一共有64个可用的用于发送下行信号的时频资源,其中灰色的矩形框表示实际发送的下行信号占用的时频资源,网络设备实际发送的下行信号的数量为16个。
其中,SS/PBCH block包括SS(synchronization signal,同步信号)和PBCH,SS包括PSS(primary synchronization signal,主同步信号)和SSS(secondary synchronization signal,辅同步信号)。其中,SS/PBCH block还可以有其他名称,例如:SS block。
网络设备根据实际发送的至少一个下行信号和随机接入资源配置图案中的随机接入资源的映射关系的确定随机接入资源的频率位置。
可选的,在实际发送的至少一个下行信号和随机接入资源配置图案中多个随机接入资源存在映射关系的情况下,终端设备根据随机接入资源的索引、初始频率偏移值、随机接入资源的频率索引、上行信道带宽和随机接入资源的带宽确定随机接入资源所在的频率位置。例如,根据如下的第四公式确定随机接入资源的频率位置。
第四公式:
在n ROmod 2=0的情况下,
Figure PCTCN2018116262-appb-000152
在n ROmod 2=1的情况下,
Figure PCTCN2018116262-appb-000153
其中,mod表示取模运算符,F RB为随机接入资源的频率位置,f start为初始频率偏移值,f offset为跳频偏移值。n RO为随机接入资源的索引,
Figure PCTCN2018116262-appb-000154
表示随机接入资源的时间,可用时隙、子帧或OFDM符号的数量来表示。
Figure PCTCN2018116262-appb-000155
为随机接入资源的频率索引。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。
或者,终端设备根据初始频率偏移值、随机接入资源的时间、跳频偏移值、随机接入资源的带宽、随机接入资源的频率索引和上行信道带宽确定随机接入资源的频率位置,例如:如下的第五公式确定随机接入资源的频率位置。
第五公式:
Figure PCTCN2018116262-appb-000156
其中,mod表示取模运算符,F RB为随机接入资源的频率位置,f start为初始频率偏移值,n RO为随机接入资源的索引,
Figure PCTCN2018116262-appb-000157
表示随机接入资源的时间,可用时隙、子帧或OFDM符号的数量来表示。f offset表示跳频偏移值。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。
或者,终端设备根据随机接入资源的时间、初始频率偏移值、随机接入资源的带宽、随机接入资源的频率索引和上行信道带宽,例如:根据如下的第六公式来确定 随机接入资源的频率位置。
第六公式:
Figure PCTCN2018116262-appb-000158
的情况下,
Figure PCTCN2018116262-appb-000159
Figure PCTCN2018116262-appb-000160
的情况下,
Figure PCTCN2018116262-appb-000161
其中,mod表示取模运算符,F RB为随机接入资源的频率位置,f start为初始频率偏移值。n RO为随机接入资源的索引,
Figure PCTCN2018116262-appb-000162
表示随机接入资源的时间,可用时隙、子帧或OFDM符号的数量来表示。
Figure PCTCN2018116262-appb-000163
为随机接入资源的频率索引。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。
或者,终端设备根据随机接入资源的时间、初始频率偏移值、随机接入资源的频率索引、跳频偏移值和上行信道带宽来确定随机接入资源的频率位置,例如:根据如下的第七公式来确定随机接入资源的频率位置。
第七公式
Figure PCTCN2018116262-appb-000164
的情况下,
Figure PCTCN2018116262-appb-000165
Figure PCTCN2018116262-appb-000166
的情况下,
Figure PCTCN2018116262-appb-000167
其中,mod表示取模运算符,F RB为随机接入资源的频率位置,f start为初始频率偏移值,f offset为跳频偏移值。n RO为随机接入资源的索引,
Figure PCTCN2018116262-appb-000168
表示随机接入资源的时间,可用时隙、子帧或OFDM符号的数量来表示。
Figure PCTCN2018116262-appb-000169
为随机接入资源的频率索引。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。
又例如:在实际发送的至少一个下行信号和随机接入资源配置图案中一个随机接入资源存在映射关系的情况下,终端设备根据如下的第一公式至第三公式中任意一个方式确定随机接入资源的频率位置。
在一种可能的实施方式中,根据随机接入前导码的格式、实际传输的至少一个下行信号的数量确定随机接入资源的频率位置。
具体的,在随机接入前导码的长度为839时,随机接入前导码定义有4种格式,分别为0至3。在随机接入前导码的长度为127或139时,随机接入前导码定义有10种格式,分别为格式A0、A1、A2、A3、B1、B2、B3、B4、C0和C2。
例如:在随机接入前导码的格式为A0、A1、B1和C0中任意一种的情况下,终端设备根据公式1或公式2确定随机接入资源的频率位置;在随机接入前导码的格式不为A0、A1、B1和C0中任意一种的情况下,终端设备根据公式3确定随机接入资源的频率位置。
又例如:在随机接入前导码的格式为A0、A1、B1和C0中任意一种,且实际发送的下行信号的数量小于或等于M的情况下,终端设备根据公式1或公式2确定随机接入资源的频率位置;否则,终端设备根据公式3确定随机接入资源的频率位置,M为大于0的整数,M的值可由网络设备进行配置,或者为预定义的值。
本发明实施例中,随机接入资源的索引n RO可以指在随机接入资源配置周期或者随机接入资源配置周期内随机接入配置图案中,随机接入资源的逻辑索引;随机接入资源的索引n RO还可以指在随机接入资源配置周期或者随机接入资源配置周期内 随机接入配置图案中,随机接入资源的绝对时间、频率索引。随机接入资源的索引n RO还可以由随机接入资源的频率索引f RA和随机接入资源的时间索引t RA共同表示。
在一种可能的实施方式中,根据帧结构类型或双工方式来确定随机接入资源的频率位置。
具体的,终端设备使用的帧结构包括TDD(time division duplexing,时分双工)帧或FDD(frequency division duplexing,频分双工)帧。双工方式包括全双工、时分双工或频分双工。
例如:在终端设备使用FDD帧或频分双工发送随机接入信号的情况下,终端设备根据第一公式或第二公式来确定随机接入资源的频率位置;在终端设备使用TDD帧或时分双工发送随机接入信号的情况下,终端设备根据第三公式来确定随机接入资源的频率位置;在终端设备使用全双工发送随机接入信号的情况下,终端设备根据第六公式来确定随机接入资源的频率位置。
在一种实现方式中,终端设备根据随机接入资源的时间、上下行配置信息、初始频率偏移值、随机接入资源的带宽、随机接入资源的频率索引和上行信道带宽来确定随机接入资源的频率位置。其中上下行配置信息包括上行时隙、下行时隙、未确定时隙的数量信息、周期信息TDL/UL中至少一种。例如:根据如下第八公式确定随机接入资源的频率位置。
第八公式:
Figure PCTCN2018116262-appb-000170
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000171
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000172
表示向下取整运算符,mod表示取模运算符,F RB为随机接入资源的频率位置,f start为初始频率偏移值。T DL/UL表示上下行配置信息。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。
在一种可能的实现方式中,终端设备根据随机接入资源的时间、上下行配置信息、随机接入资源的频率索引、初始频率偏移值、随机接入资源的带宽确定随机接入资源的频率位置。例如:根据如下的第九公式来确定随机接入资源的频率位置。
第九公式:
Figure PCTCN2018116262-appb-000173
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000174
Figure PCTCN2018116262-appb-000175
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000176
Figure PCTCN2018116262-appb-000177
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000178
Figure PCTCN2018116262-appb-000179
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000180
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000181
表示向下取整运算符。F RB为随机接入资源的频率位置,f start为初始频率偏移值。T DL/UL表示上下行配置信息。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。
在一种可能的实现方式中,终端设备根据随机接入资源的时间、上下行配置信息、初始频率偏移值、随机接入资源的带宽、随机接入资源的频率索引、跳频偏移值和上行信道带宽来确定随机接入资源的频率位置,例如:根据如下的第十公式来确定随机接入资源的频率位置。
第十公式:
Figure PCTCN2018116262-appb-000182
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000183
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000184
表示下行取整运算符。F RB为随机接入资源的频率位置,f start为初始频率偏移值。T DL/UL表示上下行配置信息。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。f offset为跳频偏移值。
在一种实现方式中,终端设备根据随机接入资源的时间、网络设备配置或者预设的时间、初始频率偏移值、随机接入资源的带宽、随机接入资源的频率索引来确定随机接入资源的频率位置。其中,网络设备配置或预设的时间T为绝对时间,即OFDM符号数量、时隙数量、子帧数量、帧数量、毫秒数量,例如0.125ms、0.25ms、0.5ms、2ms、1ms、5ms、10ms、20ms、40ms、80ms、160ms、320ms。可选的,T为随机接入配置图案中随机接入资源的数量或T为与随机接入资源关联的下行信号的数量。例如:终端设备根据如下的第十一公式来确定随机接入资源的频率位置。
第十一公式:
Figure PCTCN2018116262-appb-000185
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000186
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000187
表示下行取整运算符。F RB为随机接入资源的频率位置,f start为初始频率偏移值。T表示随机接入配置图案中随机接入资源的数量。 N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。
又例如:终端设备根据如下的第十二公式来确定随机接入资源的频率位置。
第十二公式:
Figure PCTCN2018116262-appb-000188
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000189
Figure PCTCN2018116262-appb-000190
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000191
Figure PCTCN2018116262-appb-000192
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000193
Figure PCTCN2018116262-appb-000194
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000195
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000196
表示下行取整运算符。F RB为随机接入资源的频率位置,f start为初始频率偏移值。T表示随机接入配置图案中随机接入资源的数量。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。
又例如:终端设备根据如下的第十三公式来确定随机接入资源的频率位置。
第十三公式:
Figure PCTCN2018116262-appb-000197
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000198
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000199
表示向下取整运算符。F RB为随机接入资源的频率位置,f start为初始频率偏移值。T表示随机接入配置图案中随机接入资源的数量。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。f offset为跳频偏移值。
S203、终端设备向网络设备发送随机接入信号,网络设备接收来自终端设备的随机接入信号。
具体的,终端设备在随机接入前导码集合中选择1个随机接入前导码,将选择的随机接入前导码映射到在S202中确定的随机接入资源的频率位置上,生成随机接入信号,向网络设备发送随机接入信号,终端设备选择待发送的随机接入前导码的规则本实施例不作限制。
需要说明的是,网络设备接收来自终端设备发送的随机接入信号之前,需要根据配置信息确定随机接入资源的频率位置,网络设备根据配置信息确定随机接入资源的频率位置的方法可参照S202中描述的终端设备根据配置信息确定随机接入资源的频率位置的方法,此处不再赘述。
需要说明的是,部分参数可以根据其他参数获取。例如:随机接入资源配置周期、随机接入前导码的格式、随机接入前导码的子载波间隔、随机接入资源的带宽可以根据随机接入资源的索引和消息3的子载波间隔中的至少一个获取。又例如:随机接入资源的带宽可根据随机接入前导码的格式、随机接入前导码的子载波间隔和消息3的子载波间隔中至少一个确定。又例如:初始频率偏移值和跳频偏移值根据随机接入前导码的子载波间隔、消息3的子载波间隔、相同时间上随机接入资源的数量中至少一个确定。
根据图2a所示的实施例,终端设备根据网络设备配置的初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间和随机接入资源的频率索引中至少一种确定随机接入资源的频率位置,终端设备在确定的频率位置向网络设备发送随机接入信号,避免终端设备在发送随机接入信号时盲目尝试随机接入资源的问题,提升随机接入过程的效率。
参见图3a,为本发明实施例提供的一种随机接入信号的发送方法的流程示意图,在本发明实施例中,所述方法包括:
S301、网络设备向终端设备发送配置信息,终端设备接收来自网络设备的配置信息。
其中,配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间、随机接入资源的频率索引中至少一种。随机接入资源为用于传输一个随机接入前导码所有的时频资源,随机接入资源在时域上占用一定时间,以及在频域上占用一定带宽。随机接入资源配置图案表示指定的时频资源集合周期性重复出现的时间长度,随机接入资源配置周期可以用系统帧、子帧、时隙或OFDM符号的数量来表示。上行信道带宽表示终端设备进行上行发送使用的系统带宽,上行信道带宽可以用RB的数量来表示。随机接入资源的带宽表示随机接入资源在频域上占用的频率资源大小,带宽可用RB的数量来表示。随机接入资源的时间表示随机接入资源在时域上占用的时间长度,该时间长度可用子帧数量、时隙数量或OFDM符号数量来表示。随机接入资源的频率索引表示随机接入资源在频域上的编号。
在一种可能的实施方式中,配置信息还包括、上行初始接入带宽部分(initial active uplink bandwidth part)的带宽。参见图3b所示,初始频率偏移值包括上行初始接入带宽部分位于上行信道带宽内的起始资源块位置和随机接入资源位于上行初始接入带 宽部分内的起始资源块位置,两个起始资源块位置可以基于不同的子载波间隔。可选的,图3b中随机接入资源位于上行初始接入带宽部分内的起始资源块位置固定为0。可选的,图3b中上行初始接入带宽部分位于上行信道带宽内的起始资源块位置为固定值,例如:固定为相同的中心频率、相同的起始频率、相同的结束频率中的任意一种。
S302、终端设备根据配置信息确定随机接入资源的资源块位置。
其中,随机接入资源的资源块位置仅为随机接入资源位于上行初始接入带宽内的资源位置,终端还需要根据上行初始接入带宽位于上行信道带宽内的频率位置、上行初始接入带宽内的资源位置、子载波偏移值、上行信道的频率位置,共同来确定随机接入资源的绝对频率位置。
随机接入资源为用于传输一个随机接入前导码所用的时频资源,随机接入资源在时域上占用一定时间,以及在频域上占用一定的带宽。随机接入资源配置图案表示指定的时频资源集合中所有可用的随机接入资源的位置分布情况,随机接入资源配置周期为该时频资源集合的时间长度,随机接入资源配置周期可以用系统帧、子帧、时隙或OFDM符号的数量来表示,随机接入资源配置图案周期性的进行重复,重复的周期为随机接入资源配置周期。上行信道带宽表示终端设备进行上行发送使用的系统带宽,在另外的实现方式中,又称上行信道带宽。上行信道带宽的大小可以用RB的数量来表示。随机接入资源的带宽表示随机接入资源在频域上占用的频率资源大小,带宽可以用RB的数量来表示。随机接入资源的时间表示随机接入资源在时域上占用的时间长度,该时间长度可以用子帧数量、时隙数量或OFDM符号数量来表示。随机接入资源的频率索引表示随机接入资源在频域上的索引,相同的随机接入资源具有相同的频率索引。
其中,针对随机接入资源配置图案,随机接入资源配置图案的时间长度为随机接入前导码对应子载波间隔下的K个时隙,K为正整数。可选的,随机接入资源配置图案的时间长度根据实际传输的至少一个下行信号确定,当实际传输的至少一个下行信号的数量越多并且实际传输的至少一个下行信号关联的随机接入资源的数量越多的情况下,随机接入资源配置图案的时间长度越长,反之随机接入资源配置图案的的实际长度越短。可选的,随机接入资源配置周期的时间长度为0.125ms、0.25ms、0.5ms、2ms、1ms、5ms、10ms、20ms、40ms、80ms、160ms、320ms中的至少一种,其中0.125ms指120kHz对应的一个时隙,0.25ms指60kHz对应的一个时隙或者120kHz对应的2个时隙。可选的,随机接入资源配置周期与随机接入资源配置图案的时间长度分别由网络设备配置。可选的,根据随机接入配置索引分别获取随机接入资源配置周期与随机接入资源配置图案的时间长度。
可选的,根据随机接入配置索引获取随机接入资源配置周期,根据网络设备的配置信息获取随机接入资源配置图案的时间长度。
可选的,根据随机接入配置索引获取随机接入资源配置图案的时间长度,根据网络设备的配置信息获取随机接入资源配置周期的时间长度。
其中,配置信息可由RRC信令、SI、RMSI、NR SIB0、NR SIB1、MAC-CE信令、DCI、PBCH或PDCCH order中至少一种来指示。
在一种可能的实施方式中,配置信息还包括:跳频偏移值。
具体的,跳频偏移值的解释和说明请参照上面的介绍,这里不再赘述。
在另一种可能的实施方式中,初始频率偏移值f offset根据网络设备的指示信息和/随机接入资源的带宽N RA确定,例如:网络设备的指示信息为X时,f offset=X×N RA
Figure PCTCN2018116262-appb-000200
其中,方法一:终端设备可根据如下的第十四公式确定随机接入资源的资源块位置。
第十四公式:
Figure PCTCN2018116262-appb-000201
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000202
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,
Figure PCTCN2018116262-appb-000203
表示向下取整运算,mod表示取模运算。F RB为随机接入资源的资源块位置。f start为初始频率偏移值。T RA为随机接入资源配置周期。N RB为上行信道带宽。N RA是随机接入资源的带宽,t RA为随机接入资源的时间。f RA为随机接入资源的频率索引。
方法二,终端设备根据如下的第十五公式确定随机接入资源所在的资源块位置。
第十五公式:
Figure PCTCN2018116262-appb-000204
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000205
Figure PCTCN2018116262-appb-000206
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000207
Figure PCTCN2018116262-appb-000208
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000209
Figure PCTCN2018116262-appb-000210
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000211
其中,
Figure PCTCN2018116262-appb-000212
为向下取整运算符,mod表示取模运算符。F RB为随机接入资源的资源块位置,f start为初始频率偏移值。T RA为随机接入资源配置周期。N RB为上行信道带宽。N RA是随机接入资源的带宽。t RA为随机接入资源的时间。f RA为随机接入资源的频率索引。
方法三,终端设备根据如下的第十六公式确定随机接入资源所在的资源块位置。
第十六公式:
Figure PCTCN2018116262-appb-000213
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000214
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,
Figure PCTCN2018116262-appb-000215
为向下取整运算符,mod表示取模运算符。F RB为随机接入资源的资源块位置,f start为初始频率偏移值,T RA为随机接入资源配置周期,N RB为上行信道带宽,N RA是随机接入资源的带宽,t RA为随机接入资源的时间,f RA为随机接入资源的 频率索引,f offset为跳频偏移值。
方法四,配置信息还包括:实际发送的至少一个下行信号的随机接入资源配置图案中随机接入资源的映射关系。
具体的,实际发送的下行信号为网络设备用于下行同步发送的信号,下行信号包括但不限于SS/PBCH block、DMRS、CSI-RS中任意一种。
网络设备根据实际发送的至少一个下行信号和随机接入资源配置图案中的随机接入资源的映射关系的确定随机接入资源的资源块位置。
例如:在实际发送的至少一个下行信号和随机接入资源配置图案中多个随机接入资源存在映射关系的情况下,终端设备根据如下的第十七公式确定随机接入资源的资源块位置。
第十七公式:
在n ROmod 2=0的情况下,
Figure PCTCN2018116262-appb-000216
在n ROmod 2=1的情况下,
Figure PCTCN2018116262-appb-000217
其中,mod表示取模运算符,F RB为随机接入资源的资源块位置,f start为初始频率偏移值,f offset为跳频偏移值。n RO为随机接入资源的索引,
Figure PCTCN2018116262-appb-000218
表示随机接入资源的时间,可用时隙、子帧或OFDM符号的数量来表示。
Figure PCTCN2018116262-appb-000219
为随机接入资源的频率索引。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。
方法五,终端设备根据如下的第十八公式确定随机接入资源的资源块位置。
第十八公式:
Figure PCTCN2018116262-appb-000220
其中,mod表示取模运算符,F RB为随机接入资源的资源块位置,f start为初始频率偏移值,n RO为随机接入资源的索引,
Figure PCTCN2018116262-appb-000221
表示随机接入资源的时间,可用时隙、子帧或OFDM符号的数量来表示。f offset表示跳频偏移值。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。
方法六,终端设备根据如下的第十九公式来确定随机接入资源的资源块位置。
第十九公式:
Figure PCTCN2018116262-appb-000222
的情况下,
Figure PCTCN2018116262-appb-000223
Figure PCTCN2018116262-appb-000224
的情况下,
Figure PCTCN2018116262-appb-000225
其中,mod表示取模运算符,F RB为随机接入资源的资源块位置,f start为初始频率偏移值。n RO为随机接入资源的索引,
Figure PCTCN2018116262-appb-000226
表示随机接入资源的时间,可用时隙、子帧或OFDM符号的数量来表示。
Figure PCTCN2018116262-appb-000227
为随机接入资源的频率索引。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。
方法七,终端设备根据如下的第二十公式来确定随机接入资源的资源块位置。
第二十公式:
Figure PCTCN2018116262-appb-000228
的情况下,
Figure PCTCN2018116262-appb-000229
Figure PCTCN2018116262-appb-000230
的情况下,
Figure PCTCN2018116262-appb-000231
其中,mod表示取模运算符,F RB为随机接入资源的资源块位置,f start为初始频率偏移值,f offset为跳频偏移值。n RO为随机接入资源的索引,
Figure PCTCN2018116262-appb-000232
表示随机接入资源的 时间,可用时隙、子帧或OFDM符号的数量来表示。
Figure PCTCN2018116262-appb-000233
为随机接入资源的频率索引。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。
又例如:在实际发送的至少一个下行信号和随机接入资源配置图案中一个随机接入资源存在映射关系的情况下,终端设备根据如下的公式1至公式3中任意一个方式确定随机接入资源的资源块位置。
方法八,根据随机接入前导码的格式、实际传输的至少一个下行信号的数量确定随机接入资源的资源块位置。
具体的,在随机接入前导码的长度为839时,随机接入前导码定义有4种格式,分别为0至3。在随机接入前导码的长度为127或139时,随机接入前导码定义有10种格式,分别为格式A0、A1、A2、A3、B1、B2、B3、B4、C0和C2。
例如:在随机接入前导码的格式为A0、A1、B1和C0中任意一种的情况下,终端设备根据第十四公式或第十五公式确定随机接入资源的资源块位置;在随机接入前导码的格式不为A0、A1、B1和C0中任意一种的情况下,终端设备根据第十六公式确定随机接入资源的资源块位置。
又例如:在随机接入前导码的格式为A0、A1、B1和C0中任意一种,且实际发送的下行信号的数量小于或等于M的情况下,终端设备根据公式1或公式2确定随机接入资源的资源块位置;否则,终端设备根据第三公式确定随机接入资源的资源块位置,M为大于0的整数,M的值可由网络设备进行配置,或者为预定义的值。
方法九,根据帧结构类型或双工方式来确定随机接入资源的资源块位置。
具体的,终端设备使用的帧结构包括TDD(time division duplexing,时分双工)帧或FDD(frequency division duplexing,频分双工)帧。双工方式包括全双工、时分双工或频分双工。
例如:在终端设备使用FDD帧或频分双工发送随机接入信号的情况下,终端设备根据公式1或公式2来确定随机接入资源的资源块位置;在终端设备使用TDD帧或时分双工发送随机接入信号的情况下,终端设备根据公式3来确定随机接入资源的资源块位置;在终端设备使用全双工发送随机接入信号的情况下,终端设备根据第十九公式来确定随机接入资源的频率位置。
在另一种可能的实施方式中,终端设备还根据上下行配置信息和/或双工方式来确定随机接入资源的资源块位置。其中上下行配置信息包括上行时隙、下行时隙、未确定时隙的数量信息、周期信息T DL/UL中至少一种。具体的根据如下的第二十一公式确定频率位置。
第二十一公式:
Figure PCTCN2018116262-appb-000234
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000235
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,mod表示取模运算符,F RB为随机接入资源的资源块位置,f start为初始频率偏移值。T DL/UL表示上下行配置信息。N RA为随机接入资源的带宽,N RB表示上行信 道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。
再例如,终端设备根据如下的第二十二公式确定频率位置。
第二十二公式:
Figure PCTCN2018116262-appb-000236
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000237
Figure PCTCN2018116262-appb-000238
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000239
Figure PCTCN2018116262-appb-000240
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000241
Figure PCTCN2018116262-appb-000242
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000243
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000244
表示下行取整运算符。F RB为随机接入资源的资源块位置,f start为初始频率偏移值。T DL/UL表示上下行配置信息。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。
再例如,终端设备根据如下的第二十三公式确定频率资源位置。
第二十三公式:
Figure PCTCN2018116262-appb-000245
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000246
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000247
表示下行取整运算符。F RB为随机接入资源的资源块位置,f start为初始频率偏移值。T DL/UL表示上下行配置信息。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。
在另一种可能的实施方式中,终端设备还根据网络设备配置或者预设的时间T随机接入资源的资源块位置。可选的,T为绝对时间,即OFDM符号数量、时隙数量、子帧数量、帧数量、毫秒数量,例如0.125ms、0.25ms、0.5ms、2ms、1ms、5ms、10ms、20ms、40ms、80ms、160ms、320ms;再例如T为随机接入资源的数量。例如:终端设备根据第二十四公式确定随机接入资源的频率位置。
第二十四公式:
Figure PCTCN2018116262-appb-000248
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000249
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000250
表示下行取整运算符。F RB为随机接入资源的资源块位置,f start为初始频率偏移值。T表示随机接入配置图案中随机接入资源的数量。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。
再例如,终端设备根据第二十五公式确定随机接入资源的频率位置。
第二十五公式:
Figure PCTCN2018116262-appb-000251
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000252
Figure PCTCN2018116262-appb-000253
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000254
Figure PCTCN2018116262-appb-000255
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000256
Figure PCTCN2018116262-appb-000257
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000258
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000259
表示下行取整运算符。F RB为随机接入资源的资源块位置,f start为初始频率偏移值。T表示随机接入配置图案中随机接入资源的数量;或T为与随机接入资源关联的下行信号的数量。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。
再例如,终端设备根据第二十六公式确定随机接入资源的频率位置。
第二十六公式:
Figure PCTCN2018116262-appb-000260
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000261
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,mod表示取模运算符,
Figure PCTCN2018116262-appb-000262
表示向下取整运算符。F RB为随机接入资源的 资源块位置,f start为初始频率偏移值。T表示随机接入配置图案中随机接入资源的数量。N RA为随机接入资源的带宽,N RB表示上行信道带宽,例如用RB数量来表示。t RA表示随机接入资源的时间。f RA为随机接入资源的频率索引。f offset为跳频偏移值。
需要说明的是,以上确定的随机接入资源的资源块位置仅为随机接入资源位于上行初始接入带宽内的资源位置,终端设备还需要根据上行初始接入带宽位于上行信道带宽内的频率位置、上行初始接入带宽内的资源位置、子载波偏移值、上行信道的频率位置,一起确定随机接入资源的绝对频率位置。
本发明中所有实施例中,初始频率偏移值f start可以是网络设备配置指示或者预设值,例如预设为0。需要说明的是,本发明中的所有判断X mod 2=0或者1的条件,仅为示例说明。在实际中,可以是X mod K=0、1、…、K-1,其中K是不小于2的整数。
其中,终端设备获取子载波偏移值的方法可以是:根据实际发送的至少一个下行信号(例如:SS block)的偏移值确定子载波偏移值,实际发送的至少一个下行信号的偏移值和子载波偏移值相等;如果下行信号(或者下行初始接入带宽)的子载波间隔SCS1与随机接入资源或者上行初始接入带宽部分(或者上行信道带宽)的子载波间隔SCS2不一样时,需要根据SCS1、子载波偏移值Offset、SCS2共同来确定随机接入资源的子载波偏移值,例如偏移值为M=Offset×SCS1/SCS2。或者,子载波偏移值为预配置或预存储的值。或者,子载波偏移值与随机接入资源配置图案中首个可用的随机接入资源的频率索引和/或载波频率有关;或者子载波偏移值和至少一个下行信号的偏移值不同,指示子载波偏移值的指示信息不同与指示实际发送的至少一个下行信号的偏移值的指示信息,其中,指示子载波偏移值的指示信息包括:RRC信令、SI、RMSI、NR SIB0、NR SIB1、MAC-CE信令、DCI、PBCH或PDCCH order中至少一种。
S303、终端设备根据子载波偏移值和资源块位置确定随机接入资源的频率位置。
其中,随机接入资源的频率位置表示随机接入资源在频域上的绝对位置,随机接入资源的频率位置以子载波或RE为粒度,随机接入资源的起始频率和子载波或RE的起始频率对齐,例如:随机接入资源的频率位置可以用起始子载波的频率位置或中间子载波的频率位置表示。
在一种可能的实施方式中,终端设备根据如下的第二十七公式确定随机接入资源的频率位置。
第二十七公式:
Figure PCTCN2018116262-appb-000263
其中,F SC是随机接入资源的频率位置,以子载波或RE为粒度。F RB为随机接入资源的资源块位置,以RB或RB group为粒度。
Figure PCTCN2018116262-appb-000264
为一个RB内包含的子载波数量。M是子载波偏移值。
需要说明的是,如果在一个随机接入资源配置周期或者随机接入资源配置图案内,一个下行信号映射多个随机接入资源时,终端设备可以从多个随机接入资源中随机选择或者按照预定义的规则选择一个作为随机接入资源进行随机接入。所述预 定义的规则可以是:根据终端设备的最小带宽能力选择支持带宽内的任意一个随机接入资源;或者根据终端设备的消息3的大小和下行信号的接收功率(或者路径损耗、发送功率)以及预设的门限值以及随机接入资源与门限值的对应关系,选择对应的随机接入资源;或者终端设备采用其他的规则选择随机接入资源,本实施例不作限制。
S304、终端设备在随机接入资源的频率位置上向网络设备发送随机接入信号,网络设备接收来自终端设备的随机接入信号。
具体的,终端设备在随机接入前导码集合中选择1个随机接入前导码,将选择的随机接入前导码映射到在S202中确定的随机接入资源的频率位置上,生成随机接入信号,向网络设备发送随机接入信号,终端设备选择待发送的随机接入前导码的规则本实施例不作限制。
需要说明的是,网络设备在接收终端设备发送的随机接入信号之前,需要根据随机接入资源的资源块位置和子载波偏移确定随机接入资源的频率位置,确定频率位置的过程可参照图3a中终端设备确定随机接入资源的频率位置的过程,此处不再赘述。
其中,终端设备可根据如下的第二十八公式生成随机接入信号。
第二十八公式:
Figure PCTCN2018116262-appb-000265
Figure PCTCN2018116262-appb-000266
其中,s(t)为随机接入信号,β PRACH为随机接入信号的幅度调整因子,用于控制随机接入信号的发射功率。N ZC为随机接入前导码的序列长度。x u,v(n)x u,v(n)表示ZC序列。T CP表示循环前缀的长度。t表示前导的时间,从0开始,包括序列长度和CP长度:0≤t<T SEQ+T CP
Δf RA表示随机接入前导码的子载波间隔。K=Δf/Δf RA,Δf表示初始上行接入带宽部分(initial active uplink bandwidth,IAU BWP)或者上行接入带宽部分(uplink bandwidth,BWP)的子载波间隔。t为随机接入资源的时间位置。
Figure PCTCN2018116262-appb-000267
的取值如下表4所示:
Figure PCTCN2018116262-appb-000268
表4
其中,K1和K2可以取0至25中任意一个整数,K3可以取0至5中任意一个 整数。例如:K1=12,K2=12,K3=2;再例如:K1=13,K2=13,K3=3。
例如,当K1=12,K2=12,K3=2时,还可以根据以下第二十九公式生成随机接入信号。
本领域技术人员应理解,第二十八公式中的部分参数与LTE协议中随机接入信号生成公式中的参数一致,比如这些参数的含义可以理解为:
其中,s(t)为随机接入信号,β PRACH为随机接入信号的幅度调整因子,用于控制随机接入信号的发射功率;
N ZC为随机接入前导码的序列长度,根据表3的记录,序列长度可以为839或者139;
x u,v(n)表示生成随机接入前导码的序列,比如可以是ZC序列;
T CP根据LTE的标准,表示循环前缀绝对时间的长度,T SEQ表示序列的绝对时间长度。如下表3A中,不同前导码格式对应不同的时间长度,其中,T s=1/(15000×2048)秒。
Preamble format T CP T SEQ
0 3168·T s 24576·T s
1 21024·T s 24576·T s
2 6240·T s 2·24576·T s
3 21024·T s 2·24576·T s
4 448·T s 4096·T s
表3A
t表示前导码的绝对时间,从0开始,包括序列长度和CP长度,且0≤t<T SEQ+T CP
t-T CP表示前导码的绝对时间减去循环前缀的绝对时间,即序列的时间长度;
Δf RA表示随机接入前导码的子载波间隔;
K=Δf/Δf RA,Δf表示初始上行接入带宽部分(initial active uplink bandwidth,IAU BWP)或者上行接入带宽部分(uplink bandwidth,BWP)的子载波间隔;
k 0为随机接入信道的起始子载波的频率位置,
Figure PCTCN2018116262-appb-000269
或者
Figure PCTCN2018116262-appb-000270
其中F RB为通过以上实施例获取的随机接入资源的(资源块)频率位置,F SC为以上实施例获取的随机接入资源的(资源粒子或者子载波)频率位置,
Figure PCTCN2018116262-appb-000271
是一个RB中子载波的个数,取值为12,
Figure PCTCN2018116262-appb-000272
为上行信道的带宽;
Figure PCTCN2018116262-appb-000273
(也可以用其他字母表示该变量)表示相对于随机接入资源频率位置的偏移值(在随机接入信道所在的频率上的额外的偏移,其中,随机接入信道起始频率位置,由RB位置和子载波偏移值构成)
Figure PCTCN2018116262-appb-000274
的取值如表4所示,不再赘述。
第二十九公式:
Figure PCTCN2018116262-appb-000275
其中,第二十九公式中的各个参数的说明参见第二十八。
又例如,当K1=13,K2=13,K3=3时,还可以根据以下第三十公式生成随机接 入信号。
第三十公式:
Figure PCTCN2018116262-appb-000276
其中,第二十九公式中的各个参数的说明参见第二十八。
根据图3a的实施例,终端设备根据随机接入资源的资源块位置和子载波偏移值确定随机接入资源的频率位置,这样终端设备能以子载波或RE为粒度使用频率资源,提高频率资源的利用率。
参见图4,为本发明实施例提供的一种随机接入信号的发送方法的另一流程示意图,在本发明实施例中,所述方法包括:
S401、网络设备根据配置信息确定随机接入资源的资源块位置。
其中,网络设备根据配置信息确定随机接入资源的资源块的过程,可参照图3a中终端设备根据配置信息确定随机接入资源的资源块位置的过程,此处不再赘述。
S402、网络设备向终端设备发送随机接入资源的资源块位置,终端设备接收来自网络设备的随机接入资源的资源块位置。
其中,网络设备可通过RRC信令、SI、RMSI、NR SIB0、NR SIB1、MAC-CE信令、DCI、PBCH或PDCCH order中至少一种来发送随机接入资源的资源块位置。
S403、终端设备根据子载波偏移值和资源块位置确定随机接入资源的频率位置。
其中,S403的具体过程可参照图3a中S303的描述,此处不再赘述。
S404、终端设备向网络设备发送随机接入信号,网络设备接收来自终端设备的随机接入信号。
其中,S404的具体过程可参照图3a中S304的描述,此处不再赘述。
根据图4的实施例,终端设备根据随机接入资源的资源块位置和子载波偏移值确定随机接入资源的频率位置,这样终端设备能以子载波或RE为粒度使用频率资源,提高频率资源的利用率。
上述图2a详细阐述了本发明实施例的一种随机接入信号的发送方法,下面提供了本发明实施例的一种随机接入信号的发送装置(以下简称装置5)。
需要说明的是,图5所示的装置5可以实现图2a所示实施例的终端设备侧,装置5包括接收单元501、处理单元502和发送单元503。接收单元501、接收来自网络设备的配置信息;其中,所述配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、所述随机接入资源的时间、所述随机接入资源的频率索引中至少一种。处理单元502,根据所述配置信息确定所述随机接入资源的频率位置,。发送单元503,用于在所述随机接入资源的频率位置上向所述网络设备发送随机接入信号。
可选的,所述配置信息还包括:
跳频偏移值。
可选的,处理单元502,用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000277
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000278
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
可选的,处理单元502,用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000279
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000280
Figure PCTCN2018116262-appb-000281
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000282
Figure PCTCN2018116262-appb-000283
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000284
Figure PCTCN2018116262-appb-000285
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000286
其中,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
可选的,处理单元502,用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000287
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000288
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
可选的,所述配置信息还包括:实际发送的至少一个下行信号与所述随机接入资源配置图案中随机接入资源的映射关系。
可选的,所述配置信息还包括:所述随机接入信号对应的随机接入前导码格式和/或实际发送的至少一个下行信号的数量。
可选的,所述配置信息还包括:所述随机接入前导码对应的系统帧结构、上下行配置信息、双工方式中的至少一种。
所述装置5可以为终端设备,所述装置5也可以为实现相关功能的现场可编程 门阵列(field-programmable gate array,FPGA),专用集成芯片,系统芯片(system on chip,SoC),中央处理器(central processor unit,CPU),网络处理器(network processor,NP),数字信号处理电路,微控制器(micro controller unit,MCU),还可以采用可编程控制器(programmable logic device,PLD)或其他集成芯片。
本发明实施例和图2a的方法实施例基于同一构思,其带来的技术效果也相同,具体过程可参照图2a的方法实施例的描述,此处不再赘述。
需要说明的是,图6所示的随机接入信号的接收装置(以下简称装置6)可以实现图2a所示实施例的网络设备侧,装置6包括:发送单元601,用于向终端设备发送配置信息;其中,所述配置信息包括:初始频率偏移值、随机接入资源配置周期、上行信道带宽、所述随机接入资源的带宽、所述随机接入资源的频率索引中至少一种。处理单元602,用于根据所述配置信息确定随机接入资源的频率位置。接收单元603,用于在所述随机接入资源的频率位置接收来自所述终端设备的随机接入信号。
可选的,所述配置信息还包括:跳频偏移值。
可选的,处理单元602,用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000289
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000290
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
可选的,处理单元602,用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000291
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000292
Figure PCTCN2018116262-appb-000293
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000294
Figure PCTCN2018116262-appb-000295
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000296
Figure PCTCN2018116262-appb-000297
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000298
其中,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
可选的,处理单元602,用于根据所述配置信息确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000299
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000300
的情况下,(f start+f offset+N RA×f RA)mod N RB
其中,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
可选的,所述配置信息还包括:实际发送的至少一个下行信号与所述随机接入资源配置图案中随机接入资源的映射关系。
可选的,所述配置信息还包括:所述随机接入信号对应的随机接入前导码格式和/或实际发送的至少一个下行信号的数量。
可选的,所述配置信息还包括:所述随机接入前导码对应的系统帧结构、上下行配置信息、双工方式中的至少一种。
所述装置6可以为网络设备,所述装置6也可以为实现相关功能的现场可编程门阵列(field-programmable gate array,FPGA),专用集成芯片,系统芯片(system on chip,SoC),中央处理器(central processor unit,CPU),网络处理器(network processor,NP),数字信号处理电路,微控制器(micro controller unit,MCU),还可以采用可编程控制器(programmable logic device,PLD)或其他集成芯片。
本发明实施例和图2a的方法实施例基于同一构思,其带来的技术效果也相同,具体过程可参照图2a的方法实施例的描述,此处不再赘述。
上述图3a和图4详细阐述了本发明实施例的一种随机接入信号的发送方法,下面提供了本发明实施例的一种随机接入信号的发送装置(以下简称装置7)。
需要说明的是,图7所示的装置7可以实现图3a和图4所示实施例的终端设备侧,装置7包括处理单元701和发送单元702。处理单元701,用于根据随机接入资源的子载波偏移值和资源块位置确定所述随机接入资源的频率位置。发送单元702,用于在所述随机接入资源的频率位置上向所述网络设备发送所述随机接入信号。
可选的,处理单元701,用于根据随机接入资源的子载波偏移值和资源块位置确定所述随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000301
其中,F SC是所述随机接入资源的频率位置,F RB是所述随机接入资源所在的资源块位置,
Figure PCTCN2018116262-appb-000302
为资源块RB内的子载波数量,M为所述子载波偏移值。
可选的,所述子载波偏移值与实际发送的至少一个下行信号的偏移值相同;或
子载波偏移值与所述随机接入资源对应的随机接入资源配置图案的首个随机接入资源的频率索引和/或载波频率有关;或
用于指示所述子载波偏移值的指示信息不同于用于指示实际发送的至少一个下 行信号的偏移值的指示信息。
可选的,终端设备还包括接收单元(图中未画出),接收单元,用于接收来自网络设备的配置信息;其中,所述配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、所述随机接入资源的带宽、所述随机接入资源的时间、所述随机接入资源的频率索引中至少一种;
处理单元,还用于根据所述配置信息确定所述随机接入资源的资源块位置;或
接收单元,用于接收来自网络设备的所述随机接入资源的资源块位置。
可选的,所述配置信息还包括:跳频偏移值。
可选的,处理单元701,用于根据所述配置信息确定所述随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000303
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000304
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
可选的,处理单元701,用于根据所述配置信息确定所述随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000305
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000306
Figure PCTCN2018116262-appb-000307
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000308
Figure PCTCN2018116262-appb-000309
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000310
Figure PCTCN2018116262-appb-000311
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000312
其中,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
可选的,处理单元701,用于根据所述配置信息确定所述随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000313
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000314
的情况下,F RB=(f start+f offset+N RA×f RA)mod N RB
其中,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset 为所述跳频偏移值。
可选的,所述配置信息还包括:实际发送的至少一个下行信号与随机接入资源配置图案中的随机接入资源的映射关系。
可选的,所述配置信息还包括:所述随机接入信号对应的随机接入前导码格式和/或所述实际发送的至少一个下行信号的数量。
可选的,所述配置信息还包括:帧结构、上下行配置信息、双工方式中的至少一种。
所述装置7可以为终端设备,所述装置7也可以为实现相关功能的现场可编程门阵列(field-programmable gate array,FPGA),专用集成芯片,系统芯片(system on chip,SoC),中央处理器(central processor unit,CPU),网络处理器(network processor,NP),数字信号处理电路,微控制器(micro controller unit,MCU),还可以采用可编程控制器(programmable logic device,PLD)或其他集成芯片。
本发明实施例和图3a至图4的方法实施例基于同一构思,其带来的技术效果也相同,具体过程可参照图3a至图4的方法实施例的描述,此处不再赘述。
需要说明的是,图8所示的随机接入信号的接收装置(以下简称装置8)可以实现图3a和图4所示实施例的网络设备侧,装置8包括:处理单元801和接收单元802。处理单元801,用于根据随机接入资源的资源块位置和子载波偏移确定所述随机接入资源的频率位置。接收单元802,用于在所述随机接入资源的频率位置接收来自终端设备的随机接入信号。
可选的,处理单元801,用于根据随机接入资源的子载波偏移值和资源块位置确定随机接入资源的频率位置,具体包括:
Figure PCTCN2018116262-appb-000315
其中,F SC是所述随机接入资源的频率位置,F RB是所述随机接入资源所在的资源块位置,
Figure PCTCN2018116262-appb-000316
为资源块RB内的子载波数量,M为所述子载波偏移值。
可选的,子载波偏移值和下行信号的偏移值相同;或
子载波偏移值与随机接入资源对应的随机接入资源配置图案的首个随机接入资源的频率索引和/或载波频率有关;或
用于指示子载波偏移值的指示信息不同于用于指示实际发送的至少一个下行信号的偏移值的指示信息。
可选的,装置8还包括发送单元(图中未画出),发送单元,用于向终端设备发送配置信息;配置信息包括:初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随机接入资源的时间、随机接入资源的频率索引中至少一种;或
处理单元801,还用于确定随机接入资源的资源块位置;其中,配置信息包括初始频率偏移值,随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、随 机接入资源的时间、随机接入资源的频率索引中至少一种;
发送单元,用于向终端设备发送随机接入资源的资源块位置。
可选的,配置信息还包括:跳频偏移值。
可选的,处理单元801,用于根据配置信息确定接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000317
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000318
的情况下,F RB=N RB-f start-N RA×(f RA+1);
其中,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
可选的,处理单元801,用于根据配置信息确定随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000319
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000320
Figure PCTCN2018116262-appb-000321
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000322
Figure PCTCN2018116262-appb-000323
且f RAmod 2=0的情况下,
Figure PCTCN2018116262-appb-000324
Figure PCTCN2018116262-appb-000325
且f RAmod 2=1的情况下,
Figure PCTCN2018116262-appb-000326
其中,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
可选的,处理单元801,用于根据配置信息确定随机接入资源的资源块位置,具体包括:
Figure PCTCN2018116262-appb-000327
的情况下,F RB=f start+N RA×f RA
Figure PCTCN2018116262-appb-000328
的情况下,F RB=(f start+f offset+N RA×f RA)mod N RB
其中,F RB为所述随机接入资源的资源块位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
可选的,配置信息还包括:实际发送的至少一个下行信号与随机接入资源配置图案中随机接入资源的映射关系。
可选的,配置信息还包括:随机接入信号对应的随机接入前导码格式和/或实际发送的至少一个下行信号的数量。
可选的,配置信息还包括:帧结构、上下行配置信息、双工方式中的至少一种。
所述装置8可以为网络设备,所述装置8也可以为实现相关功能的现场可编程门阵列(field-programmable gate array,FPGA),专用集成芯片,系统芯片(system on chip,SoC),中央处理器(central processor unit,CPU),网络处理器(network processor,NP),数字信号处理电路,微控制器(micro controller unit,MCU),还可以采用可编程控制器(programmable logic device,PLD)或其他集成芯片。
本发明实施例和图3a至图4的方法实施例基于同一构思,其带来的技术效果也相同,具体过程可参照图3a至图4的方法实施例的描述,此处不再赘述。
图9为本发明实施例提供的一种装置结构示意图,以下简称装置9,装置9可以集成于前述网络设备或终端设备,如图9所示,该装置包括:存储器902、处理器901、发射器904以及接收器903。
存储器902可以是独立的物理单元,与处理器901、发射器904以及接收器903可以通过总线连接。存储器902、处理器901、发射器904以及接收器901也可以集成在一起,通过硬件实现等。
发射器904和接收器903还可以与天线连接,接收器903通过天线接收其他设备发送的信息,相应地,发射器904通过天线向其他设备发送信息。
存储器902用于存储实现以上方法实施例,或者装置实施例各个模块的程序,处理器901调用该程序,执行以上方法实施例的操作。
可选地,当上述实施例的随机接入方法中的部分或全部通过软件实现时,随机接入装置也可以只包括处理器。用于存储程序的存储器位于随机接入装置之外,处理器通过电路/电线与存储器连接,用于读取并执行存储器中存储的程序。
处理器可以是中央处理器(central processing unit,CPU),网络处理器(network processor,NP)或者CPU和NP的组合。
处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit,ASIC),可编程逻辑器件(programmable logic device,PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device,CPLD),现场可编程逻辑门阵列(field-programmable gate array,FPGA),通用阵列逻辑(generic array logic,GAL)或其任意组合。
存储器可以包括易失性存储器(volatile memory),例如随机存取存储器(random-access memory,RAM);存储器也可以包括非易失性存储器(non-volatile memory),例如快闪存储器(flash memory),硬盘(hard disk drive,HDD)或固态硬盘(solid-state drive,SSD);存储器还可以包括上述种类的存储器的组合。
上述实施例中,发送模块或发射器执行上述各个方法实施例发送的步骤,接收模块或接收器执行上述各个方法实施例接收的步骤,其它步骤由其他模块或处理器执行。发送模块和接收模块可以组成收发模块,接收器和发射器可以组成收发器。
本申请实施例还提供了一种计算机存储介质,存储有计算机程序,该计算机程序用于执行上述实施例提供的随机接入方法。
本申请实施例还提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述实施例提供的随机接入方法。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。

Claims (64)

  1. 一种随机接入信号的发送方法,其特征在于,包括:
    根据随机接入资源的子载波偏移值和资源块位置确定所述随机接入资源的频率位置;
    在所述随机接入资源的频率位置上向网络设备发送随机接入信号。
  2. 如权利要求1所述的方法,其特征在于,所述根据随机接入资源的子载波偏移值和资源块位置确定所述随机接入资源的频率位置,包括:
    所述随机接入资源的频率位置满足以下公式:
    Figure PCTCN2018116262-appb-100001
    其中,F SC是所述随机接入资源的频率位置,F RB是所述随机接入资源所在的资源块位置,
    Figure PCTCN2018116262-appb-100002
    为资源块RB内的子载波数量,M为所述子载波偏移值。
  3. 如权利要求1或2所述的方法,其特征在于,
    所述子载波偏移值与实际接收的至少一个下行信号的偏移值相同;或
    所述子载波偏移值与所述随机接入资源对应的随机接入资源配置图案的首个随机接入资源的频率索引和/或载波频率有关;或
    所述子载波偏移值由以下指示信息来指示:
    无线资源控制RRC信令、系统信息SI、剩余系统信息RMSI、新空口系统信息块NR SIB1、媒体接入控制控制实体MAC-CE信令、下行控制信息DCI、物理广播信道PBCH、物理下行控制信道PDCCH order中至少一种。
  4. 如权利要求1-3任意一项所述的方法,其特征在于,基于新空口系统信息块NR SIB1中携带的信息确定所述子载波偏移值M。
  5. 如权利要求1-4任意一项所述的方法,其特征在于,所述根据随机接入资源的子载波偏移值和资源块位置确定所述随机接入资源的频率位置之前,还包括:
    接收来自所述网络设备的配置信息;其中,所述配置信息包括初始频率偏移值、随机接入资源配置周期、所述随机接入资源的频率索引中至少一种;
    根据所述配置信息确定所述随机接入资源的资源块位置。
  6. 如权利要求5所述的方法,其特征在于,所述随机接入资源的资源块位置满足以下公式:
    Figure PCTCN2018116262-appb-100003
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100004
    的情况下,F RB=N RB-f start-N RA×(f RA+1);
    其中,
    Figure PCTCN2018116262-appb-100005
    表示向下取整运算,mod表示取模运算,F RB为随机接入资源的资源块位置,f start为初始频率偏移值,T RA为随机接入资源配置周期,N RB为上行信道带宽,N RA是随机接入资源的带宽,t RA为随机接入资源的时间,f RA为随机接入资源的频率索引。
  7. 如权利要求1-6任意一项所述的方法,其特征在于,所述随机接入信号满足以下公式:
    Figure PCTCN2018116262-appb-100006
    其中,s(t)为随机接入信号,β PRACH为随机接入信号的幅度调整因子,用于控制随机接入信号的发射功率;N ZC为随机接入前导码的序列长度;x u,v(n)表示序列;T CP表示循环前缀的时间长度;Δf RA表示随机接入前导码的子载波间隔;K=Δf/Δf RA,Δf表示初始上行接入带宽部分IAU BWP或者上行接入带宽部分BWP的子载波间隔,k0为随机接入信道起始子载波的频率位置,
    Figure PCTCN2018116262-appb-100007
    或者
    Figure PCTCN2018116262-appb-100008
    其中F RB为随机接入资源的资源块的频率位置,F SC为随机接入资源的资源粒子或者子载波的频率位置,
    Figure PCTCN2018116262-appb-100009
    为一个资源块RB包含的子载波的个数,
    Figure PCTCN2018116262-appb-100010
    为上行信道的带宽;t为前导码的绝对时间长度,t-T CP表示序列的时间长度,
    Figure PCTCN2018116262-appb-100011
    表示相对于随机接入资源频率位置的偏移值。
  8. 如权利要求7所述的方法,其特征在于,所述随机接入前导码的格式为3,所述随机接入前导码的子载波间隔为5KHz,所述
    Figure PCTCN2018116262-appb-100012
    的取值为12。
  9. 如权利要求7所述的方法,其特征在于,所述随机接入前导码的格式为A1或A2或A3或B1或B2或B3或B4或C0或C1中的一种,所述随机接入前导码的子载波间隔为15KHZ或30KHz或60Khz或120khz中的一种,所述
    Figure PCTCN2018116262-appb-100013
    的取值为2。
  10. 一种随机接入信号的接收方法,其特征在于,包括:
    根据随机接入资源的资源块位置和子载波偏移确定所述随机接入资源的频率位置;
    在所述随机接入资源的频率位置接收来自终端设备的随机接入信号。
  11. 如权利要求10所述的方法,其特征在于,所述根据随机接入资源的子载波偏移值和资源块位置确定所述随机接入资源的频率位置,具体包括:
    Figure PCTCN2018116262-appb-100014
    其中,F SC是所述随机接入资源的频率位置,F RB是所述随机接入资源所在的资源块位置,
    Figure PCTCN2018116262-appb-100015
    为资源块RB内的子载波数量,M为所述子载波偏移值。
  12. 如权利要求10或11所述的方法,其特征在于,
    所述子载波偏移值与实际发送的至少一个下行信号的偏移值相同;或
    所述子载波偏移值与所述随机接入资源对应的随机接入资源配置图案的首个随机接入资源的频率索引和/或载波频率有关;或
    所述子载波偏移值由以下指示信息来指示:
    无线资源控制RRC信令、系统信息SI、剩余系统信息RMSI、新空口系统信息块NR SIB1、MAC-CE信令、下行控制信息DCI、物理广播信道PBCH、PDCCH order中至少一种。
  13. 如权利要求10-12任意一项所述的方法,其特征在于,还包括:
    发送新空口系统信息块NR SIB1,其中,所述NR SIB1中携带用于指示子载波偏移值的信息。
  14. 如权利要求10-13任意一项所述的方法,其特征在于,所述方法还包括:
    发送配置信息至终端设备,其中,所述配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、所述随机接入资源的带宽、所述随机接入资源的时间、所述随机接入资源的频率索引中至少一种。
  15. 如权利要求10-14任意一项所述的方法,其特征在于,所述随机接入资源的资源块位置满足以下公式:
    Figure PCTCN2018116262-appb-100016
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100017
    的情况下,F RB=N RB-f start-N RA×(f RA+1);
    其中,
    Figure PCTCN2018116262-appb-100018
    表示向下取整运算,mod表示取模运算,F RB为随机接入资源的资源块位置,f start为初始频率偏移值,T RA为随机接入资源配置周期,N RB为上行信道带宽,N RA是随机接入资源的带宽,t RA为随机接入资源的时间,f RA为随机接入资源的频率索引。
  16. 如权利要求10-15任意一项所述的方法,其特征在于,所述随机接入信号满足以下公式:
    Figure PCTCN2018116262-appb-100019
    其中,s(t)为随机接入信号,β PRACH为随机接入信号的幅度调整因子,用于控制随机接入信号的发射功率,N ZC为随机接入前导码的序列长度,x u,v(n)表示序列,T CP表示循环前缀的时间长度,Δf RA表示随机接入前导码的子载波间隔,K=Δf/Δf RA,Δf表示初始上行接入带宽部分IAU BWP或者上行接入带宽部分BWP的子载波间隔,k0为随机接入信道起始子载波的频率位置,
    Figure PCTCN2018116262-appb-100020
    或者
    Figure PCTCN2018116262-appb-100021
    其中F RB为随机接入资源的资源块的频率位置,F SC为随机接入资源的资源粒子或者子载波的频率位置,
    Figure PCTCN2018116262-appb-100022
    为一个资源块RB包含的子载波的个数,
    Figure PCTCN2018116262-appb-100023
    为上行信道的带宽,t为前导码的绝对时间长度,t-T CP表示序列的时间长度,
    Figure PCTCN2018116262-appb-100024
    表示相对于随机接入资源频率位置的偏移值。
  17. 如权利要求16所述的方法,其特征在于,所述随机接入前导码的格式为3,所述随机接入前导码的子载波间隔为5KHz,所述
    Figure PCTCN2018116262-appb-100025
    的取值为12。
  18. 如权利要求16所述的方法,其特征在于,所述随机接入前导码的格式为A1或A2或A3或B1或B2或B3或B4或C0或C1中的一种,所述随机接入前导码的子载波间隔为15KHZ或30KHz或60Khz或120khz中的一种,所述
    Figure PCTCN2018116262-appb-100026
    的取值为2。
  19. 一种随机接入信号的发送装置,其特征在于,包括:
    处理单元,用于根据随机接入资源的子载波偏移值和资源块位置确定所述随机接入资源的频率位置;
    发送单元,用于在所述随机接入资源的频率位置上向网络设备发送随机接入信号。
  20. 如权利要求19所述的装置,其特征在于,所述随机接入资源的频率位置满足以下公式:
    Figure PCTCN2018116262-appb-100027
    其中,F SC是所述随机接入资源的频率位置,F RB是所述随机接入资源所在的资源块位置,
    Figure PCTCN2018116262-appb-100028
    为资源块RB内的子载波数量,M为所述子载波偏移值。
  21. 如权利要求19或20所述的装置,其特征在于,
    所述子载波偏移值与实际接收的至少一个下行信号的偏移值相同;或
    所述子载波偏移值与所述随机接入资源对应的随机接入资源配置图案的首个随机接入资源的频率索引和/或载波频率有关;或
    所述子载波偏移值由以下指示信息来指示:
    无线资源控制RRC信令、系统信息SI、剩余系统信息RMSI、新空口系统信息块NR SIB1、MAC-CE信令、下行控制信息DCI、物理广播信道PBCH、PDCCH order中至少一种。
  22. 如权利要求19-21任意以下所述的装置,其特征在于,所述处理单元,用于基于新空口系统信息块NR SIB1中携带的信息确定所述子载波偏移值M。
  23. 如权利要求19-22任意一项所述的装置,其特征在于,所述装置还包括接收单元,用于接收来自网络设备的配置信息;其中,所述配置信息包括初始频率偏移值、随机接入资源配置周期、所述随机接入资源的频率索引中至少一种;
    所述处理单元,用于根据所述配置信息确定所述随机接入资源的资源块位置。
  24. 如权利要求23所述的装置,其特征在于,所述处理单元,所述随机接入资源的资源块位置满足以下公式:
    Figure PCTCN2018116262-appb-100029
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100030
    的情况下,F RB=N RB-f start-N RA×(f RA+1);
    其中,
    Figure PCTCN2018116262-appb-100031
    表示向下取整运算,mod表示取模运算,F RB为随机接入资源的资源块位置,f start为初始频率偏移值,T RA为随机接入资源配置周期,N RB为上行信道带宽,N RA是随机接入资源的带宽,t RA为随机接入资源的时间,f RA为随机接入资源的频率索引。
  25. 如权利要求19-24任意一项所述的装置,其特征在于,所述随机接入信号满足以下公式:
    Figure PCTCN2018116262-appb-100032
    其中,s(t)为随机接入信号,β PRACH为随机接入信号的幅度调整因子,用于控制随机接入信号的发射功率,N ZC为随机接入前导码的序列长度,x u,v(n)表示序列,T CP表示循环前缀的时间长度,Δf RA表示随机接入前导码的子载波间隔,K=Δf/Δf RA,Δf表示初始上行接入带宽部分IAU BWP或者上行接入带宽部分BWP的子载波间隔,k0为随机接入信道起始子载波的频率位置,
    Figure PCTCN2018116262-appb-100033
    或者
    Figure PCTCN2018116262-appb-100034
    其中F RB为随机接入资源的资源块的频率位置,F SC为随机接入资源的资源粒子或者子载波的频率位置,
    Figure PCTCN2018116262-appb-100035
    为一个资源块RB包含的子载波的个数,
    Figure PCTCN2018116262-appb-100036
    为上行信道的带宽,t为前导码的绝对时间长度,t-T CP表示序列的时间长度,
    Figure PCTCN2018116262-appb-100037
    表示相对于随机接入资源频率位置的偏移值。。
  26. 如权利要求25所述的装置,其特征在于,所述随机接入前导码的格式为3,且所述随机接入前导码的子载波间隔为5KHz,所述
    Figure PCTCN2018116262-appb-100038
    的取值为12。
  27. 如权利要求25所述的装置,其特征在于,所述随机接入前导码的格式为A1或A2或A3或B1或B2或B3或B4或C0或C1中的一种,所述随机接入前导码的子载波间隔为15KHZ或30KHz或60Khz或120khz中的一种,所述
    Figure PCTCN2018116262-appb-100039
    的取值为2。
  28. 一种随机接入信号的接收装置,其特征在于,包括:
    确定单元,用于根据随机接入资源的资源块位置和子载波偏移确定所述随机接入资源的频率位置;
    接收单元,用于在所述随机接入资源的频率位置接收来自终端设备的随机接入信号。
  29. 如权利要求28所述的装置,其特征在于,还包括:发送单元;
    所述发送单元,用于向所述终端设备发送配置信息;所述配置信息包括:初始频率偏移值、随机接入资源配置周期、随机接入资源的频率索引中至少一种。
  30. 如权利要求25所述的装置,其特征在于,所述确定单元,所述随机接入资源的资源块位置满足以下公式:
    Figure PCTCN2018116262-appb-100040
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100041
    的情况下,F RB=N RB-f start-N RA×(f RA+1);
    其中,
    Figure PCTCN2018116262-appb-100042
    表示向下取整运算,mod表示取模运算,F RB为随机接入资源的资源块位置,f start为初始频率偏移值,T RA为随机接入资源配置周期,N RB为上行信道带宽,N RA是随机接入资源的带宽,t RA为随机接入资源的时间,f RA为随机接入资源的频率索引。
  31. 如权利要求28-30任意一项所述的装置,其特征在于,
    所述子载波偏移值与实际发送的至少一个下行信号的偏移值相同;或
    所述子载波偏移值与所述随机接入资源对应的随机接入资源配置图案的首个随机接入资源的频率索引和/或载波频率有关;或
    所述子载波偏移值由以下指示信息来指示:
    无线资源控制RRC信令、系统信息SI、剩余系统信息RMSI、新空口系统信息块NR SIB1、MAC-CE信令、下行控制信息DCI、物理广播信道PBCH、PDCCH order中至少一种。
  32. 如权利要求28-31任意一项所述的装置,其特征在于,所述发送单元,用于发送新空口系统信息块NR SIB1,其中,所述NR SIB1中携带用于指示子载波偏移值的信息。
  33. 如权利要求28-32任意一项所述的装置,其特征在于,所述随机接入信号满足以下公式:
    Figure PCTCN2018116262-appb-100043
    其中,s(t)为随机接入信号,β PRACH为随机接入信号的幅度调整因子,用于控制随机接入信号的发射功率,N ZC为随机接入前导码的序列长度,x u,v(n)表示序列,T CP表示循环前缀的时间长度,Δf RA表示随机接入前导码的子载波间隔,K=Δf/Δf RA,Δf表示初始上行接入带宽部分IAU BWP或者上行接入带宽部分BWP的子载波间隔,k0为随机接入信道起始子载波的频率位置,
    Figure PCTCN2018116262-appb-100044
    或者
    Figure PCTCN2018116262-appb-100045
    其中F RB为随机接入资源的资源块的频率位置,F SC为随机接入资源的资源粒子或者子载波的频率位置,
    Figure PCTCN2018116262-appb-100046
    为一个资源块RB包含的子载波的个数,
    Figure PCTCN2018116262-appb-100047
    为上行信道的带宽,t为前导码的绝对时间长度,t-T CP表示序列的时间长度,
    Figure PCTCN2018116262-appb-100048
    表示相对于随机接入资源频率位置的偏移值。
  34. 如权利要求33所述的装置,其特征在于,所述随机接入前导码的格式为3,且所述随机接入前导码的子载波间隔为5KHz,所述
    Figure PCTCN2018116262-appb-100049
    的取值为12。
  35. 如权利要求33所述的装置,其特征在于,所述随机接入前导码的格式为A1或A2或A3或B1或B2或B3或B4或C0或C1中的一种,所述随机接入前导码的子载波间隔为15KHZ或30KHz或60Khz或120khz中的一种,所述
    Figure PCTCN2018116262-appb-100050
    的取值为2。
  36. 一种随机接入信号的发送方法,其特征在于,包括:
    接收来自网络设备的配置信息;其中,所述配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、所述随机接入资源的时间、所述随机接入资源的频率索引中至少一种;
    根据所述配置信息确定所述随机接入资源的频率位置;
    在所述随机接入资源的频率位置上向所述网络设备发送随机接入信号。
  37. 如权利要求36所述的方法,其特征在于,所述配置信息还包括:
    跳频偏移值。
  38. 如权利要求36所述的方法,其特征在于,所述随机接入资源的频率位置满足以下公式,具体包括:
    Figure PCTCN2018116262-appb-100051
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100052
    的情况下,F RB=N RB-f start-N RA×(f RA+1);
    其中,
    Figure PCTCN2018116262-appb-100053
    表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
  39. 如权利要求36所述的方法,其特征在于,所述随机接入资源的频率位置满足以下公式,具体包括:
    Figure PCTCN2018116262-appb-100054
    且f RAmod 2=0的情况下,
    Figure PCTCN2018116262-appb-100055
    Figure PCTCN2018116262-appb-100056
    且f RAmod 2=1的情况下,
    Figure PCTCN2018116262-appb-100057
    Figure PCTCN2018116262-appb-100058
    且f RAmod 2=0的情况下,
    Figure PCTCN2018116262-appb-100059
    Figure PCTCN2018116262-appb-100060
    且f RAmod 2=1的情况下,
    Figure PCTCN2018116262-appb-100061
    其中,
    Figure PCTCN2018116262-appb-100062
    表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
  40. 如权利要求37所述的方法,其特征在于,所述随机接入资源的频率位置满足以下公式,具体包括:
    Figure PCTCN2018116262-appb-100063
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100064
    的情况下,(f start+f offset+N RA×f RA)mod N RB
    其中,
    Figure PCTCN2018116262-appb-100065
    表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
  41. 一种随机接入信号的发送装置,其特征在于,包括:
    接收单元,用于接收来自网络设备的配置信息;其中,所述配置信息包括初始频率偏移值、随机接入资源配置周期、上行信道带宽、随机接入资源的带宽、所述随机 接入资源的时间、所述随机接入资源的频率索引中至少一种;
    处理单元,用于根据所述配置信息确定所述随机接入资源的频率位置;
    发送单元,用于在所述随机接入资源的频率位置上向所述网络设备发送随机接入信号。
  42. 如权利要求41所述的装置,其特征在于,所述配置信息还包括:
    跳频偏移值。
  43. 如权利要求41所述的装置,其特征在于,所述随机接入资源的频率位置满足以下公式,具体包括:
    Figure PCTCN2018116262-appb-100066
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100067
    的情况下,F RB=N RB-f start-N RA×(f RA+1);
    其中,
    Figure PCTCN2018116262-appb-100068
    表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
  44. 如权利要求41所述的装置,其特征在于,所所述随机接入资源的频率位置满足以下公式,具体包括:
    Figure PCTCN2018116262-appb-100069
    且f RAmod 2=0的情况下,
    Figure PCTCN2018116262-appb-100070
    Figure PCTCN2018116262-appb-100071
    且f RAmod 2=1的情况下,
    Figure PCTCN2018116262-appb-100072
    Figure PCTCN2018116262-appb-100073
    且f RAmod 2=0的情况下,
    Figure PCTCN2018116262-appb-100074
    Figure PCTCN2018116262-appb-100075
    且f RAmod 2=1的情况下,
    Figure PCTCN2018116262-appb-100076
    其中,
    Figure PCTCN2018116262-appb-100077
    表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
  45. 如权利要求42所述的装置,其特征在于,所述随机接入资源的频率位置满足以下公式,具体包括:
    Figure PCTCN2018116262-appb-100078
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100079
    的情况下,(f start+f offset+N RA×f RA)mod N RB
    其中,
    Figure PCTCN2018116262-appb-100080
    表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所 述随机接入资源的频率索引,f offset为所述跳频偏移值。
  46. 如权利要求41所述的装置,其特征在于,所述配置信息还包括:实际发送的至少一个下行信号与所述随机接入资源配置图案中随机接入资源的映射关系。
  47. 如权利要求41所述的装置,其特征在于,所述配置信息还包括:所述随机接入信号对应的随机接入前导码格式和/或实际发送的至少一个下行信号的数量。
  48. 如权利要求41所述的装置,其特征在于,所述配置信息还包括:所述随机接入前导码对应的系统帧结构、上下行配置信息、双工方式中的至少一种。
  49. 一种随机接入信号的接收方法,其特征在于,包括:
    向终端设备发送配置信息;其中,所述配置信息包括:初始频率偏移值、随机接入资源配置周期、上行信道带宽、所述随机接入资源的带宽、所述随机接入资源的频率索引中至少一种;
    根据所述配置信息确定随机接入资源的频率位置;
    在所述随机接入资源的频率位置接收来自所述终端设备的随机接入信号。
  50. 一种随机接入信号的接收装置,其特征在于,包括:
    发送单元,用于向终端设备发送配置信息;其中,所述配置信息包括:初始频率偏移值、随机接入资源配置周期、上行信道带宽、所述随机接入资源的带宽、所述随机接入资源的频率索引中至少一种;
    处理单元,用于根据所述配置信息确定随机接入资源的频率位置;
    接收单元,用于在所述随机接入资源的频率位置接收来自所述终端设备的随机接入信号。
  51. 如权利要求50所述的装置,其特征在于,所述配置信息还包括:
    跳频偏移值。
  52. 如权利要求50所述的装置,其特征在于,所述随机接入资源的频率位置满足以下公式,具体包括:
    Figure PCTCN2018116262-appb-100081
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100082
    的情况下,F RB=N RB-f start-N RA×(f RA+1);
    其中,
    Figure PCTCN2018116262-appb-100083
    表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
  53. 如权利要求50所述的装置,其特征在于,所述随机接入资源的频率位置满足以下公式,具体包括:
    Figure PCTCN2018116262-appb-100084
    且f RAmod 2=0的情况下,
    Figure PCTCN2018116262-appb-100085
    Figure PCTCN2018116262-appb-100086
    且f RAmod 2=1的情况下,
    Figure PCTCN2018116262-appb-100087
    Figure PCTCN2018116262-appb-100088
    且f RAmod 2=0的情况下,
    Figure PCTCN2018116262-appb-100089
    Figure PCTCN2018116262-appb-100090
    且f RAmod 2=1的情况下,
    Figure PCTCN2018116262-appb-100091
    其中,
    Figure PCTCN2018116262-appb-100092
    表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引。
  54. 如权利要求51所述的装置,其特征在于,所述随机接入资源的频率位置满足以下公式,具体包括:
    Figure PCTCN2018116262-appb-100093
    的情况下,F RB=f start+N RA×f RA
    Figure PCTCN2018116262-appb-100094
    的情况下,(f start+f offset+N RA×f RA)mod N RB
    其中,
    Figure PCTCN2018116262-appb-100095
    表示向下取整,mod表示取模运算,F RB为所述随机接入资源的频率位置,f start为所述初始频率偏移值,T RA为所述随机接入资源配置周期,N RB为所述上行信道带宽,N RA是所述随机接入资源的带宽,t RA为所述随机接入资源的时间,f RA为所述随机接入资源的频率索引,f offset为所述跳频偏移值。
  55. 一种随机接入方法,其特征在于,所述方法包括:
    生成随机接入信号;
    向网络设备发送所述随机接入信号,其中,所述随机接入信号满足以下公式:
    Figure PCTCN2018116262-appb-100096
    其中,s(t)为随机接入信号,β PRACH为随机接入信号的幅度调整因子,用于控制随机接入信号的发射功率,N ZC为随机接入前导码的序列长度。x u,v(n)表示序列,T CP表示循环前缀的时间长度,Δf RA表示随机接入前导码的子载波间隔,K=Δf/Δf RA,Δf表示初始上行接入带宽部分IAU BWP或者上行接入带宽部分BWP的子载波间隔,k0为随机接入信道起始子载波的频率位置,
    Figure PCTCN2018116262-appb-100097
    或者
    Figure PCTCN2018116262-appb-100098
    其中F RB为随机接入资源的资源块的频率位置,F SC为随机接入资源的资源粒子或者子载波的频率位置,
    Figure PCTCN2018116262-appb-100099
    为一个资源块RB包含的子载波的个数,
    Figure PCTCN2018116262-appb-100100
    为上行信道的带宽;t为前导码的绝对时间长度,t-TCP表示序列的时间长度,
    Figure PCTCN2018116262-appb-100101
    表示相对于随机接入资源频率位置的偏移值。
  56. 如权利要求55所述的方法,其特征在于,所述随机接入信号对应的前导码的 格式为3,所述随机接入前导码的子载波间隔为5KHz,所述
    Figure PCTCN2018116262-appb-100102
    的取值为12。
  57. 如权利要求55所述的方法,其特征在于,所述随机接入信号对应的前导码的格式为A1或A2或A3或B1或B2或B3或B4或C0或C1中的一种,所述随机接入前导码的子载波间隔为15KHZ或30KHz或60Khz或120khz中的一种,所述
    Figure PCTCN2018116262-appb-100103
    的取值为2。
  58. 一种随机接入方法,其特征在于,所述方法包括:
    接收随机接入信号;
    响应所述随机接入信号,其中,所述随机接入信号满足以下公式:
    Figure PCTCN2018116262-appb-100104
    其中,s(t)为随机接入信号,β PRACH为随机接入信号的幅度调整因子,用于控制随机接入信号的发射功率,N ZC为随机接入前导码的序列长度。x u,v(n)表示序列,T CP表示循环前缀的时间长度,Δf RA表示随机接入前导码的子载波间隔,K=Δf/Δf RA,Δf表示初始上行接入带宽部分IAU BWP或者上行接入带宽部分BWP的子载波间隔,k0为随机接入信道起始子载波的频率位置,
    Figure PCTCN2018116262-appb-100105
    或者
    Figure PCTCN2018116262-appb-100106
    其中F RB为随机接入资源的资源块的频率位置,F SC为随机接入资源的资源粒子或者子载波的频率位置,
    Figure PCTCN2018116262-appb-100107
    为一个资源块RB包含的子载波的个数,
    Figure PCTCN2018116262-appb-100108
    为上行信道的带宽;t为前导码的绝对时间长度,t-TCP表示序列的时间长度,
    Figure PCTCN2018116262-appb-100109
    表示相对于随机接入资源频率位置的偏移值。
  59. 如权利要求58所述的方法,其特征在于,所述随机接入信号对应的前导码的格式为3,所述随机接入前导码的子载波间隔为5KHz,所述
    Figure PCTCN2018116262-appb-100110
    的取值为12。
  60. 如权利要求58所述的方法,其特征在于,所述随机接入信号对应的前导码的格式为A1或A2或A3或B1或B2或B3或B4或C0或C1中的一种,所述随机接入前导码的子载波间隔为15KHZ或30KHz或60Khz或120khz中的一种,所述
    Figure PCTCN2018116262-appb-100111
    的取值为2。
  61. 一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得所述计算机执行如权利要求1-9任一项所述的方法,或者,使得所述计算机执行如权利要求10-18,或者,使得所述计算机执行如权利要求55-57,或者,使得所述计算机执行如权利要求58-60任一项所述的方法。
  62. 一种计算机程序产品,所述计算机程序产品包含指令,当所述指令在计算机上运行时,使得所述计算机执行如权利要求1-9或者10-18或者55-57或者58-60中任一项所述的方法。
  63. 一种装置,用于执行如权利要求1-9或者10-18或者55-57或者58-60任一项所述的方法。
  64. 一种通信装置,包括处理器和存储器,存储器存储程序,所述处理器用于执行程序以使得如权利要求1-9或者10-18或者55-57或者58-60任一项所述的方法被执行。
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