WO2019061074A1 - 信息传输方法以及装置、随机接入方法以及装置、通信系统 - Google Patents

信息传输方法以及装置、随机接入方法以及装置、通信系统 Download PDF

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Publication number
WO2019061074A1
WO2019061074A1 PCT/CN2017/103674 CN2017103674W WO2019061074A1 WO 2019061074 A1 WO2019061074 A1 WO 2019061074A1 CN 2017103674 W CN2017103674 W CN 2017103674W WO 2019061074 A1 WO2019061074 A1 WO 2019061074A1
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Prior art keywords
random access
mac sub
access response
response message
information
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PCT/CN2017/103674
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English (en)
French (fr)
Inventor
史玉龙
贾美艺
王昕�
Original Assignee
富士通株式会社
史玉龙
贾美艺
王昕�
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Application filed by 富士通株式会社, 史玉龙, 贾美艺, 王昕� filed Critical 富士通株式会社
Priority to JP2020514697A priority Critical patent/JP7191094B2/ja
Priority to CN201780092084.8A priority patent/CN110771249B/zh
Priority to PCT/CN2017/103674 priority patent/WO2019061074A1/zh
Publication of WO2019061074A1 publication Critical patent/WO2019061074A1/zh
Priority to US16/505,091 priority patent/US11039479B2/en
Priority to JP2021201578A priority patent/JP2022033957A/ja

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/02—Hybrid access techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the present invention relates to the field of communications, and in particular, to an information transmission method and apparatus, a random access method and apparatus, and a communication system.
  • the random access procedure includes a contention based random access procedure and a non-contention based random access procedure.
  • a contention-based random access procedure a random access preamble is shared between different UEs, and in a non-contention based random access procedure, a base station may specify a random access preamble sequence for the UE.
  • the time domain location in which the UE sends the random access preamble sequence refers to a subframe, and the network side can configure the subframe by using a random access resource.
  • Random Access Radio Network Tempory Identity RA-RNTI
  • RAR Random Access Preamble Identity
  • RAPID Random Access Preamble Identity
  • the time domain location in which the UE sends the random access preamble sequence refers not only to the subframe but also to the time slot occupied by the random access preamble sequence. And the symbols used. Therefore, when the subframes occupied by different UEs transmitting the random access preamble sequence and the time slots are the same, the UE usually receives the random access response at the same or similar time, and the UEs are randomly connected. The incoming response is suitable for multiplexing in the same random access response message (Msg.2). If according to the current mechanism, the random access response sent to different UEs cannot be distinguished only according to the RA-RNTI and the RAPID.
  • Msg.2 random access response message
  • an embodiment of the present invention provides an information transmission method, apparatus, and communication system, which can help a UE distinguish a random access response sent in a random access response message.
  • an information transmission apparatus including: a first sending unit, configured to send, to a user equipment, symbol identification information, where the symbol identification information indicates a random access preamble sequence sent by the user equipment Information about the symbols used.
  • an information transmission apparatus including: a first receiving unit, configured to receive symbol identification information sent by a network side, where the symbol identification information indicates that the user equipment sends a random access preamble sequence Information about the symbols used.
  • a random access apparatus including: a second sending unit, configured to send a random access response message to a user equipment, where the random access response message includes data type indication information And the data type indication information indicates a data format and/or a use of the MAC sub-header or the MAC sub-data unit, where the data format includes a first data format that includes the preamble sequence identifier but does not include the corresponding random access response data.
  • the use includes a first use for indicating confirmation of an on-demand system information request.
  • a random access apparatus including: a second receiving unit, configured to receive a random access response message, where the random access response message includes data type indication information, the data The type indication information indicates a data format and/or usage of the MAC sub-data unit, wherein the data format includes a first data format including a preamble identifier but not corresponding to the corresponding random access response data, the use including The first use of the confirmation of the system information request.
  • a random access apparatus including: a third receiving unit, configured to receive a random access response message;
  • the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header in the random access response message includes a random access preamble sequence identifier, and the random access preamble sequence identifier belongs to a pre-configured
  • the sequence identifier set of the random access preamble sequence is requested for the on-demand system information request, determining that the MAC sub-header or the MAC sub-data unit corresponding to the MAC sub-header is used for indicating the confirmation of the on-demand system information request; or
  • the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header in the random access response message includes a random access preamble sequence identifier, and the random access preamble sequence identifier does not belong to a pre-configured request for on-demand system information.
  • a random access apparatus including: a third sending unit, configured to send a random access response message, where the random access response message includes multiple MAC subheaders Or a MAC sub-data unit corresponding to the MAC sub-header, where a MAC sub-header including a random back-off indication message or a MAC sub-data unit corresponding to the MAC sub-header is located in a MAC sub-data unit corresponding to all MAC sub-headers or MAC sub-headers The last one.
  • a random access apparatus including: a fourth receiving unit, configured to receive a random access response message, where the random access response message includes multiple MAC subheaders Or a MAC sub-data unit corresponding to the MAC sub-header, where a MAC sub-header including a random back-off indication message or a MAC sub-data unit corresponding to the MAC sub-header is located in a MAC sub-data unit corresponding to all MAC sub-headers or MAC sub-headers The last one.
  • a random access apparatus including: an indication unit, configured to indicate a random access preamble sequence by using the first indication information and the second indication information.
  • a random access apparatus comprising: a determining unit, configured to determine a random access preamble sequence by using the first indication information and the second indication information.
  • An advantageous effect of the embodiment of the present invention is that the UE can receive the symbol identification information returned by the network side, and distinguish the random access response sent in the random access response message according to the symbol identification information, thereby solving the problem existing in the prior art. .
  • Embodiment 1 is a flowchart of an information transmission method according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of a format of a random access response according to Embodiment 1 of the present invention.
  • Embodiment 3 is a flowchart of an information transmission method according to Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of a random access method according to Embodiment 4 of the present invention.
  • FIGS. 6 and 7 are schematic diagrams showing the format of a random access response according to Embodiment 4 of the present invention.
  • FIG. 11 is a schematic diagram of a random access response message according to Embodiment 7 of the present invention.
  • FIG. 12 is a flowchart of a random access method according to Embodiment 8 of the present invention.
  • FIG 13 is a schematic diagram of an information transmission apparatus according to Embodiment 9 of the present invention.
  • FIG. 14 is a schematic structural diagram of a network device according to Embodiment 10 of the present invention.
  • Figure 15 is a schematic diagram of an information transmission apparatus according to Embodiment 11 of the present invention.
  • Figure 16 is a schematic diagram of a determining unit of Embodiment 11 of the present invention.
  • FIG. 17 is a schematic structural diagram of a user equipment according to Embodiment 12 of the present invention.
  • FIG. 18 is a schematic diagram of a random access apparatus according to Embodiment 13 of the present invention.
  • FIG. 19 is a schematic structural diagram of a network device according to Embodiment 14 of the present invention.
  • FIG. 20 is a schematic diagram of a random access apparatus according to Embodiment 15 of the present invention.
  • FIG. 21 is a schematic structural diagram of a user equipment according to Embodiment 16 of the present invention.
  • Figure 22 is a schematic diagram of a random access device according to Embodiment 17 of the present invention.
  • FIG. 23 is a schematic structural diagram of a user equipment according to Embodiment 18 of the present invention.
  • FIG. 24 is a schematic diagram of a random access apparatus according to Embodiment 19 of the present invention.
  • FIG. 25 is a schematic structural diagram of a network device according to Embodiment 20 of the present invention.
  • Figure 26 is a schematic diagram of a random access device according to Embodiment 21 of the present invention.
  • Figure 27 is a schematic diagram showing the structure of a user equipment according to Embodiment 22 of the present invention.
  • Figure 30 is a schematic diagram of a random access device according to Embodiment 25 of the present invention.
  • Figure 31 is a schematic diagram showing the structure of a network device according to Embodiment 26 of the present invention.
  • Figure 32 is a schematic diagram of a random access device according to Embodiment 27 of the present invention.
  • Figure 33 is a schematic diagram showing the structure of a user equipment according to Embodiment 28 of the present invention.
  • Figure 34 is a block diagram showing the configuration of a communication system in accordance with Embodiment 29 of the present invention.
  • Figure 35 is a flowchart of a random access method according to Embodiment 29 of the present invention.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or chronological order of the elements, and these elements should not be used by these terms. Limited.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising,” “comprising,” “having,” or “an” are used to distinguish different elements from the title, but do not indicate the spatial arrangement or chronological order of the elements, and these elements should not be used by these terms. Limited.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the term “communication network” or “wireless communication network” may mean any of the following Communication standard networks, such as Long Term Evolution (LTE), Enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), high-speed packets Access (HSPA, High-Speed Packet Access) and so on.
  • LTE Long Term Evolution
  • LTE-A Enhanced Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system may be performed according to any phase of the communication protocol, and may include, for example but not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future. 5G, New Radio (NR), etc., and/or other communication protocols currently known or to be developed in the future.
  • the term "network device” refers to, for example, a device in a communication system that accesses a terminal device to a communication network and provides a service for the terminal device.
  • the network device may include, but is not limited to, a device: a base station (BS, a base station), an access point (AP, an Access Point), a transmission and reception point (TRP), a broadcast transmitter, and a mobility management entity (MME, Mobile). Management Entity), gateway, server, Radio Network Controller (RNC), Base Station Controller (BSC), and so on.
  • BS base station
  • AP access point
  • TRP transmission and reception point
  • MME mobility management entity
  • Management Entity gateway
  • server Radio Network Controller
  • BSC Base Station Controller
  • the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), and the like, and may further include a Remote Radio Head (RRH). , Remote Radio Unit (RRU), relay or low power node (eg femto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • base station may include some or all of their functions, and each base station may provide communication coverage for a particular geographic area.
  • the term "cell” can refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "user equipment” (UE) or “Terminal Equipment” (TE) refers to, for example, a device that accesses a communication network through a network device and receives a network service.
  • the user equipment may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.
  • the user equipment may include, but is not limited to, a cellular phone (Cellular Phone), a personal digital assistant (PDA, Personal Digital Assistant), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, Cordless phones, smart phones, smart watches, digital cameras, and more.
  • a cellular phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem Wireless Fidelity
  • a wireless communication device a handheld device
  • a machine type communication device a laptop computer
  • Cordless phones smart phones, smart watches, digital cameras, and more.
  • the user equipment may also be performed.
  • the monitoring or measuring machine or device may include, but is not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, and a machine to machine (M2M, Machine). To Machine) terminal, and so on.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to machine
  • the random access procedure may be a contention based random access procedure or a non-contention based random access procedure.
  • the random access procedure is classified into a contention-based random access procedure and a non-contention-based random access procedure according to whether the network device can uniquely identify a random access procedure of a certain UE.
  • Embodiment 1 of the present invention provides an information transmission method, which is applied to a network device side, for example, may be applied to a device that responds to a random access procedure initiated by a user equipment.
  • FIG. 1 is a flowchart of the information transmission method in this embodiment. As shown in FIG. 1, the method includes:
  • Step 101 Send symbol identification information to the user equipment, where the symbol identification information indicates related information of symbols used by the random access preamble sequence sent by the user equipment.
  • the UE can receive the symbol identification information returned by the network side, and distinguish the random access response sent in the random access response message according to the symbol identification information, thereby solving the problem existing in the prior art.
  • the UE when the UE initiates the random access procedure, the UE sends a random access preamble sequence to the network device side.
  • the random access procedure may be a contention based random access procedure or a non-contention based random access procedure.
  • the user equipment selects a random access preamble sequence preamble in the random access preamble sequence set and a resource in the random access resource set to send the random access preamble sequence.
  • the network device may allocate a dedicated random access preamble sequence to the UE, and/or a random access resource (such as a random access channel resource (RACH Resource), And/or a Random Access Preamble Format, the UE sends a random access preamble sequence according to the allocation on the network side.
  • a dedicated random access preamble sequence such as a random access channel resource (RACH Resource), And/or a Random Access Preamble Format
  • the time domain location in which the UE sends the random access preamble sequence may include a subframe, and the time slot is And a symbol used, wherein each sub-frame length is equal to Xms, consisting of Y consecutive time slots, each time slot consisting of Z Orthogonal Frequency Division Multiplexing (OFDM) symbols, wherein X , Y, Z can refer to the prior art, for example, they are equal to 1, 2, 7, respectively, but the embodiment is not limited thereto.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the symbol identifier information indicates information about the symbol used by the user equipment to send the random access preamble sequence.
  • the related information may be occupied by the random access preamble sequence sent by the user equipment in the time domain.
  • the symbol location information wherein the location information may be a symbol ID (SymbolID), or may be an interval between the symbol location and the predetermined location, or may be a pattern index number of a network configured to transmit a symbol position of the random access preamble sequence.
  • SymbolID symbol ID
  • the embodiment is not limited thereto.
  • the symbol identification information may be a predetermined number of A bits, wherein the value of A may be determined according to the number of OFDM symbols included in one slot, for example, when 14 OFDM symbols are included in one slot.
  • the symbol identification information is a 4-bit field, but the present embodiment is not limited thereto. When the number of OFDM symbols included in one slot increases, the number of A increases correspondingly.
  • the method may further include:
  • Step 100 Receive a random access preamble sequence sent by the UE.
  • the network side when receiving the random access preamble sequence sent by the UE, the network side returns a random access response message (Msg. 2) to the UE, where the random access may be adopted.
  • the access response message sends the symbol identification information, but the embodiment does not limit the information.
  • the symbol identification information may also be sent by using a new message or an existing other message, and the new message or other existing messages may be It is sent at the same time as the random access response message, and may also be sent at different times. This embodiment is not limited thereto.
  • the network side when receiving the random access preamble sequence sent by the UE, may calculate the RA-RNTI according to the subframe in which the random access preamble sequence is transmitted and the occupied time slot, and use the RA-RNTI to add
  • the PDCCH is PDCCH
  • the network side indicates the downlink grant of the Msg.2 through the PDCCH
  • the UE side can descramble the PDCCH according to the RA-RNTI to read the Msg.2, where the RA-RNTI is calculated and the RA-RNTI is scrambled and descrambled.
  • the method can refer to the prior art, and details are not described herein again.
  • the format of the random access response message may refer to the prior art.
  • FIG. 2 is a schematic diagram of a format of a random access response message in the prior art.
  • the random access response message may be Included in the media intervention control layer (MAC) sub-header and at least one MAC sub-data unit (sub PDU) corresponding to the MAC sub-header and padding information (optional), where different MAC sub-data units correspond to different UEs sent by the UE
  • the result of the response of the access preamble sequence, the random access preamble sequence may be sent by the same UE, or may be sent by different UEs; for example, when the network side confirms that the UE can perform random access, in the MAC sub-data unit A random access response (RAR) is included, which indicates an acknowledgment of the random access request.
  • the MAC sub-data unit may further include a RAPID, and other information.
  • RAPID random access response
  • the symbol identification information may be included in a MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header.
  • the UE can receive the symbol identification information returned by the network side, and distinguish the random access response sent in the random access response message according to the symbol identification information, thereby solving the problem existing in the prior art.
  • Embodiment 2 of the present invention provides an information transmission method, which is applied to a user equipment side, for example, a device side that initiates a random access procedure to a network side.
  • FIG. 3 is a flowchart of an information transmission method in this embodiment. As shown in FIG. 3, the method includes:
  • Step 301 Receive symbol identification information sent by the network side, where the symbol identification information indicates information about a symbol used by the user equipment to send a random access preamble sequence.
  • Embodiment 1 the specific meaning of the symbol identification information is referred to in Embodiment 1, and is not repeated here.
  • the method may further include:
  • Step 300 Send a random access preamble sequence to the network side.
  • the network side after the UE sends the random access preamble sequence, the network side returns a random access response message to the UE according to the random access preamble sequence, where the symbol may be included in the random access response message.
  • the format of the random access response message reference may be made to the first embodiment.
  • the format of the random access preamble sequence and the resource for sending the random access preamble sequence may refer to the prior art, and details are not described herein again.
  • the method may further include a step (not shown): listening to the random access response message, and receiving the random access response message by using the listening process; wherein the listening period may be pre-configured by the network side,
  • the time window may be a subframe from the UE that transmits a random access preamble sequence + 3 subframes, a length of P subframes, and P is a positive integer.
  • the UE may calculate the RA-RNTI according to the subframe in which the random access preamble sequence is transmitted and the occupied time slot or other information, and use the RA-RNTI to descramble the PDCCH.
  • the UE is in the physical Under A physical access link (Physical Downlink Shared Channel, PDSCH) reads a random access response message sent by the network side, and distinguishes the random access response sent in the random access response message according to the symbol identification information included in the random access response message. Whether it is sent to the UE itself.
  • PDSCH Physical Downlink Shared Channel
  • the method may further include:
  • Step 302 Determine, by using the symbol identification information, whether the random access response data included in the random access response message sent by the network side is successfully received.
  • the random access response data that is, the random access response RAR, is used to indicate that the network side confirms that the UE can perform a subsequent random access procedure, and the random access response data is successfully received, and the random access response data is also indicated. Is sent to the UE itself, not to other UEs.
  • the UE determines whether the symbol position indicated by the symbol identification information matches the symbol position occupied by the random access preamble sequence sent by the user equipment in the time domain; when the determination result is consistent, determining The random access response data included in the random access response message is successfully received, wherein the correspondence may indicate correspondence or the same.
  • the UE compares the symbol ID with the symbol ID occupied by the random access preamble sequence sent in step 300 in the time domain, when they are consistent, It indicates that the random access response data is sent to the UE itself, that is, the random access response data is successfully received.
  • the UE compares the index number with the random access preamble sent in step 300. The symbols occupied by the sequence in the time domain are compared. When corresponding, the random access response data is sent to the UE itself, that is, the random access response data is successfully received.
  • the UE determines whether the symbol position indicated by the symbol identification information matches the symbol position occupied by the random access preamble sequence sent by the user equipment in the time domain; and, determining the random access response. Whether the random access preamble sequence identifier included in the message is consistent with the random access preamble sequence identifier sent by the user equipment; when the judgment result is consistent, determining that the random access response data included in the random access response message is successfully received , where the match can indicate correspondence or the same.
  • the random access response message may include both the symbol identification information and the random access preamble sequence identifier (RAPID).
  • RAPID random access preamble sequence identifier
  • the UE will The symbol ID is compared with the symbol ID occupied by the random access preamble sequence transmitted in step 300 in the time domain, and the RAPID included in the random access response message is sent along with the sequent sent in step 300.
  • the device access preamble sequence identifiers are compared. When the two are consistent, the random access response data is sent to the UE itself, that is, the random access response data is successfully received.
  • the UE compares the index number with the random access preamble sent in step 300. Comparing the symbols occupied by the sequence in the time domain, and comparing the RAPID included in the random access response message with the random access preamble sequence identifier sent in step 300, and indicating that the random The access response data is sent to the UE itself, that is, the random access response data is successfully received.
  • the UE can receive the symbol identification information returned by the network side, and distinguish the random access response sent in the random access response message according to the symbol identification information, thereby solving the problem existing in the prior art.
  • Embodiment 3 of the present invention provides a random access method
  • FIG. 4 is a flowchart of a random access method according to Embodiment 3 of the present invention. As shown in FIG. 4, the method includes:
  • Step 401 The UE sends a random access preamble sequence (Msg.1) to the network side.
  • Msg.1 random access preamble sequence
  • Step 402 the network side receives at least one random access preamble sequence, and returns a random access response message (Msg. 2) to the UE;
  • the random access response includes symbol identification information, where the symbol identification information indicates information about a symbol used by the user equipment to send a random access preamble sequence.
  • Step 403 The UE receives the random access response message returned by the network side, and determines whether the RAR in the random access response message is successfully received according to the symbol identification information included in the received random access response message, or the RAPID and the symbol identification information.
  • the specific judgment method is as described in Embodiment 2, and details are not described herein again.
  • the UE may receive the random access response message returned by the network side by monitoring, where the UE may perform monitoring in a pre-configured time window.
  • the UE may send the random access preamble sequence according to the UE.
  • the frame and the occupied time slot are used to calculate the RA-RNTI, and the RA-RNTI is used to descramble the PDCCH.
  • the descrambling is successful, the random access response message returned by the network side may be received.
  • Step 404 Upon successful reception, the UE sends an uplink message (Msg.3) to the network side on the resource specified in the RAR; the uplink message includes the UE identifier; for example, the Msg.3 may be a radio resource control connection. Request (RRC connection request).
  • Msg.3 may be a radio resource control connection. Request (RRC connection request).
  • Step 405 The network side receives the uplink message, and returns a conflict resolution message (Msg. 4) to the UE with successful random access according to the UE identifier included therein.
  • Msg. 4 conflict resolution message
  • the method may further include a step (not shown): the network side sends the indication information to the UE, the indication message is used to indicate The time-frequency location of the random access preamble sequence used by the random access procedure and the access resources used may be referred to the prior art, and are not repeated here.
  • the UE initiates a random access procedure, which may be a contention-based random access procedure or a non-contention-based random access procedure. This embodiment is not limited thereto.
  • the UE can receive the symbol identification information returned by the network side, and distinguish the random access response sent in the random access response message according to the symbol identification information, thereby solving the problem existing in the prior art.
  • the random access response message includes two data types, that is, a random backoff time indication and a normal random access response.
  • a new data type is introduced in the random access response message, that is, the confirmation of the on-demand system information request.
  • the UE has no effective method. It is distinguished whether the received random access response message is the new data type, that is, the confirmation of the on-demand system information request.
  • the present embodiment provides a random access method, apparatus, and communication system.
  • the data type indicating the random access response message for displaying may be used for indicating by including the data type indication information in the random access response message.
  • the confirmation of the on-demand system information request thereby solving the problems in the prior art.
  • this embodiment provides a random access method, apparatus, and communication system.
  • the data type of the random access response message implicitly indicated by the RAPID included in the random access response message may be used to indicate the on-demand system information. The confirmation of the request, thereby solving the problems in the prior art.
  • Embodiment 4 of the present invention provides a random access method, which is applied to a network device side, for example, may be applied to A device responsive to a random access procedure initiated by a user equipment.
  • FIG. 5 is a flowchart of a random access method in this embodiment. As shown in FIG. 5, the method includes:
  • Step 501 Send a random access response message to the user equipment, where the random access response message includes data type indication information, where the data type indication information indicates a data format and/or use of the MAC sub-header or its corresponding MAC sub-data unit.
  • the data format includes a first data format including a preamble identifier but no corresponding random access response data, the use including a first use for indicating an acknowledgment of the on-demand system information request.
  • the random access response message may include a media intervention control layer (MAC) sub-header and at least one MAC sub-data unit (sub PDU) corresponding to the MAC sub-header and padding information (optional), where Different MAC sub-data units correspond to the response result of the random access preamble sequence sent by different UEs, and the random access preamble sequence may be sent by the same UE, or may be sent by different UEs; different MAC sub-headers or their corresponding The data format or use of the MAC sub-data unit may be the same or different.
  • MAC sub-header media intervention control layer
  • sub PDU MAC sub-data unit
  • padding information optionally, where Different MAC sub-data units correspond to the response result of the random access preamble sequence sent by different UEs, and the random access preamble sequence may be sent by the same UE, or may be sent by different UEs; different MAC sub-headers or their corresponding
  • the data format or use of the MAC sub-data unit may be the same or
  • the first use corresponds to the first data format
  • the use of the MAC sub-header or its corresponding MAC sub-data unit is the first use, that is, when the acknowledgment for the on-demand system information request is indicated
  • the data format of the MAC sub-header or its corresponding MAC sub-data unit is the first data format, that is, the preamble sequence identifier is included but the corresponding random access response data (ie, only the RAPID is included).
  • the on-demand system information request may also be represented as other system information requests.
  • the other system information may be system information configured for end-to-end communication, but the embodiment is not limited thereto.
  • the data format further includes a second data format of the random backoff indication information, and/or a third data format including at least the preamble identifier and its corresponding random access response data; the use further includes A second use indicating a random backoff time, and/or a third use for indicating a normal random access response.
  • the second use corresponds to the second data format
  • the use of the MAC sub-header or its corresponding MAC sub-data unit is a second use, that is, when indicating a random backoff time, the MAC sub-header or its corresponding
  • the data format of the MAC sub-data unit is the second data format, that is, includes a backoff indicator (BI).
  • the BI is used to indicate that the UE retransmits the waiting time range of the random access preamble sequence, and the specific indication manner is the same as the prior art.
  • the third use corresponds to the third data format, and the MAC sub-header or the MAC sub-header or the corresponding MAC sub-data unit is used for the third purpose, that is, when indicating a normal random access response, or
  • the data format of the corresponding MAC sub-data unit is the third data format, that is, the at least the preamble identifier and the at least Its corresponding random access response data (ie RAPID+RAR).
  • the BI is used to indicate that the UE retransmits the waiting time range of the random access preamble sequence, and the specific indication manner is the same as the prior art.
  • the embodiment is not limited thereto.
  • the data type indication information may also be used to indicate other uses or data formats, for example, the data format is RAPID+SymbolID+RAR or RAPID+SymbolID.
  • the data type indication information may be included in a MAC sub-header corresponding to the MAC sub-header or the MAC sub-header of the random access response message, where the data type indication information may be a field of a predetermined number of bits.
  • the predetermined number may be determined according to a data format of the data type or a quantity of uses.
  • the data type indication information I is a 1-bit field, where the bit is 0 for the first purpose, 1 for the second or third use, and vice versa.
  • the data type indication information is a 2-bit field. Where 00 represents the first use, 01 represents the second use, and 10 represents the third use, but the embodiment is not limited thereto.
  • the data type indication information is a 1-bit field, where the bit is 0 to indicate the first data format, 1 to the second data format or the third data format, and vice versa.
  • the data type indication information is a A 2-bit field, where 00 represents the first data format, 01 represents the second data format, and 10 represents the third data format, but this embodiment is not limited thereto.
  • the data type indication information may be represented by a remaining bit in the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header, such as an extended field or an extended field+other field, but this embodiment does not This is a limitation.
  • FIG. 6 and FIG. 7 are schematic diagrams showing the format of the random access response in the embodiment.
  • the data type indication information is a 2-bit field, where 00 represents a first data format, and 01 represents second data.
  • Format, 10 denotes a third data format; as shown in FIG. 7, the data type indication information is a 1-bit field, where 0 represents the first data format and 1 represents the third data format.
  • the data type used to indicate the random access response message can be used to indicate the confirmation of the on-demand system information request, thereby solving the existing Problems in technology.
  • Embodiment 5 of the present invention provides a random access method, which is applied to a user equipment side, for example, may be applied to a device side of an initiated random access procedure.
  • FIG. 8 is a flowchart of a random access method in this embodiment. As shown in FIG. 8, the method includes:
  • Step 801 Receive a random access response message, where the random access response message includes data type indication information, where the data type indication information indicates a data format and/or a use of the MAC sub-header or its corresponding MAC sub-data unit, where The data format includes a first data format that includes a preamble identifier but does not include its corresponding random access response data, the use including a first use for indicating an acknowledgment of the on-demand system information request.
  • the format of the random access response message may be referred to the embodiment 4, and the implementation manner of the data type indication information may refer to the embodiment 4, and the repeated description thereof is not repeated.
  • the UE may receive the random access response message, and the UE sequentially reads each MAC sub-header or its corresponding MAC sub-data unit in the random access response message, according to the MAC.
  • the data type indication information in the sub-header or its corresponding MAC sub-data unit determines the data format or use of the MAC sub-header or its corresponding MAC sub-data unit.
  • the UE when the UE reads that the use in the current MAC sub-header or its corresponding MAC sub-data unit is the first use, it is determined that the MAC sub-header or its corresponding MAC sub-data unit is used to indicate the on-demand system information request. It is confirmed that the data format is the first data format, and only the RAPID is included. According to the information, the UE can learn that the previously requested on-demand system information request is confirmed by the network side, and the confirmation of the on-demand system information request can be regarded as Requested Answer (ACK) message.
  • ACK Requested Answer
  • the UE when the UE reads that the use in the current MAC sub-header or its corresponding MAC sub-data unit is the second use, it is determined that the MAC sub-header or its corresponding MAC sub-data unit is used to indicate a random backoff time, and the data thereof.
  • the format is the second data format, including BI, and the UE saves the BI.
  • a value may be selected from the values of 0 to BI as the time to delay the transmission of the random access preamble sequence.
  • the data format is a third data format, including RAPID+RAR. Further, whether the RAR is sent to the UE may be determined according to the RAPID and other information, such as the symbol identification information in Embodiment 1.
  • the data type used to indicate the random access response message can be used to indicate the confirmation of the on-demand system information request, thereby solving the existing Problems in technology.
  • Embodiment 6 of the present invention provides a random access method, which is applied to a user equipment side, for example, may be applied to a device side of an initiated random access procedure.
  • FIG. 9 is a flowchart of a random access method in this embodiment. As shown in FIG. 9, the method includes:
  • Step 901 Receive a random access response message.
  • Step 902 The MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header in the random access response message includes a random access preamble sequence identifier, and the random access preamble sequence identifier belongs to a pre-configured system for on-demand Determining, by the MAC address header or the MAC sub-data unit corresponding to the MAC sub-header, the acknowledgment of the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header for indicating the on-demand system information request; or, in the random access
  • the MAC sub-header corresponding to the MAC sub-header or the MAC sub-header in the response message includes a random access preamble sequence identifier, and the random access preamble sequence identifier does not belong to a pre-configured random access preamble for the on-demand system information request.
  • the sequence of the sequence identifies the set, the purpose of determining the MAC sub-data unit corresponding to the
  • the format of the random access response message may refer to the prior art.
  • FIG. 2 is a schematic diagram of a format of a random access response message in the prior art.
  • the random access response message may be Included in the media intervention control layer (MAC) sub-header and at least one MAC sub-data unit (sub PDU) corresponding to the MAC sub-header and padding information (optional), where different MAC sub-data units correspond to random access sent by different UEs
  • the result of the response of the preamble sequence, the random access preamble sequence may be sent by the same UE, or may be sent by different UEs; for example, when the network side confirms that the UE can perform random access, the random access in the MAC sub data unit is included.
  • Incoming response (RAR) indicating the confirmation of the random access request; wherein the MAC sub-data unit may also include the RAPID, and other information, such as symbol identification information, or BI, which is not repeated here. example.
  • the method for receiving the random access response message in the step 901 may refer to the related art.
  • the UE monitors the PDCCH, descrambles the PDCCH according to the RA-RNTI, and receives the random access response message, and details are not described herein again.
  • step 902 the MAC sub-header corresponding to the MAC sub-header or the MAC sub-header in the random access response message is sequentially read, and when the RAPID is included in the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header, The RAPID is compared with the sequence identifier in the sequence identifier set of the random access preamble sequence for the on-demand system information request, and when the identifier includes the identifier of the RAPID, the MAC corresponding to the MAC sub-header or the MAC sub-header is determined.
  • the use of the sub-data unit is for indicating the confirmation of the on-demand system information request; the UE can learn that the previously requested on-demand system information request is acknowledged by the network side, and the confirmation of the on-demand system information request can be regarded as the request Answer (ACK) message.
  • ACK request Answer
  • the identifier of the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header is used to indicate a normal random access response, and may further be based on the RAPID and other information, when the identifier of the RAPID is not included in the set.
  • the symbol identification information in Embodiment 1 determines whether the RAR included in the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header is sent to the UE.
  • the method further includes (not shown): the UE acquires a pre-configured sequence identification set of the random access preamble sequence for the on-demand system information request.
  • the sequence identifier set of the random access preamble sequence for the on-demand system information request may be notified to the UE after the network side is pre-configured, or may be pre-defined by the network.
  • the pre-configured sequence identification set of the random access preamble sequence for the on-demand system information request is ⁇ 0, 3, 6, 9, 12, 15 ⁇
  • the UE sequentially reads the MAC sub-in the random access response message.
  • the RAPID included in the random access response message implicitly indicates that the data type of the random access response message can be used to indicate the confirmation of the on-demand system information request, thereby solving the prior art. There are problems, in addition, saving bit information.
  • an extension field is set in the MAC subPDU corresponding to the MAC sub-header in the random access response message, which is used to indicate whether there is another MAC sub-header after the MAC sub-header, or the MAC Whether there are other MAC subPDUs after the subPDU.
  • a new data type is introduced in the random access response message, that is, an acknowledgment of the on-demand system information request, or a random access response message
  • the extension field may need to be occupied to indicate a new data type or other information. Therefore, the extension field cannot be used to indicate whether there are other MAC subPDUs after the MAC subPDU. If the UE reads the MAC subPDU after receiving the random access response message, it cannot know whether there are other MAC subPDUs to be read after the MAC subPDU.
  • the present embodiment provides a random access method, apparatus, and communication system, and places a MAC sub-header including a random backoff indication or its corresponding MAC sub-PDU in the last one of all MAC sub-headers or their corresponding MAC subPDUs.
  • the UE reads the MAC sub-header including the random backoff indication or its corresponding MAC sub-PDU, it is confirmed that there is no MAC sub-header or its corresponding MAC sub-PDU, so that the read operation can be ended, which solves the problem existing in the prior art. problem.
  • Embodiment 7 of the present invention provides a random access method, which is applied to a network device side, for example, may be applied to a device that responds to a random access procedure initiated by a user equipment.
  • FIG. 10 is a flowchart of a random access method in this embodiment. As shown in FIG. 10, the method includes:
  • Step 1001 Send a random access response message, where the random access response message includes multiple MAC sub-headers or MAC sub-data units corresponding to the MAC sub-header, where the MAC sub-header or MAC sub-inclusion of the random back-off indication message is included.
  • the location of the MAC sub-data unit corresponding to the header is the last one of all MAC sub-headers or MAC sub-data units corresponding to the MAC sub-header.
  • the random access response message may include a media intervention control layer (MAC) subheader and at least one MAC sub-data unit (subPDU) corresponding to the MAC sub-header and padding information (optional), where different
  • the data format of the MAC sub-header or its corresponding MAC sub-data unit may be the same or different, for example, the data format includes the preamble sequence identifier but does not include its corresponding random access response data.
  • a first data format (RAPID only)
  • RAPID+RAR a second data format including at least a preamble identifier and its corresponding random access response data
  • BI random backoff indication information
  • the embodiment is not limited thereto.
  • the one random access response message may include one or more MAC sub-headers of the first data format or the second data format or their corresponding MAC sub-data units, but one random access response message includes at most one third data format.
  • MAC subheader or its corresponding MAC subdata unit may include one or more MAC sub-headers of the first data format or the second data format or their corresponding MAC sub-data units, but one random access response message includes at most one third data format.
  • the location of the MAC sub-header of the third data format or its corresponding MAC sub-data unit is in all MAC sub-headers or MAC sub-data units corresponding to the MAC sub-header.
  • the MAC sub-header according to the third data format or its corresponding MAC sub-data unit may implicitly indicate that the MAC sub-header of the third data format or its corresponding MAC sub-data unit has no other MAC sub-headers. Or its corresponding MAC sub-data unit.
  • FIG. 11 is a schematic diagram of the format of the random access response message in this embodiment. As shown in FIG. 11, the MAC sub-PDU including BI is at the end of all MAC sub-PDUs, and there is no other MAC sub-header or its corresponding MAC sub-PDU.
  • the embodiment 8 of the present invention provides a random access method, which is applied to the user equipment side, for example, can be applied to the device side of the initiated random access procedure.
  • FIG. 12 is a flowchart of a random access method in this embodiment. As shown in FIG. 12, the method includes:
  • Step 1201 Receive a random access response message, where the random access response message includes multiple MAC sub-headers or MAC sub-data units corresponding to the MAC sub-header, where the MAC sub-header or MAC sub-inclusion of the random back-off indication message is included.
  • the location of the MAC sub-data unit corresponding to the header is the last one of all MAC sub-headers or MAC sub-data units corresponding to the MAC sub-header.
  • the format of the random access response message may be specifically referred to in Embodiment 7, and details are not described herein again.
  • the method may further include:
  • Step 1202 Read multiple MAC sub-headers or MAC sub-data units corresponding to the MAC sub-heads included in the random access response message, and read the MAC sub-header or MAC sub-header corresponding to the random back-off indication message. When the sub-data unit is determined, it is determined that the random access response message is read.
  • the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-head may include data type indication information for indicating a MAC sub-data unit data format corresponding to the MAC sub-header or the MAC sub-header, and the specific implementation thereof For the manner of reference to Embodiment 4, it will not be repeated here.
  • the UE determines, according to the data type indication information, whether the data format of the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header is the first data format, the second data format, or the third data format, which needs to be explained. Yes, this embodiment is not limited to the above three data formats.
  • the UE further continues to read the MAC sub-header or MAC when determining, according to the data type indication information, that the data format of the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header is the first data format and the second data format.
  • the MAC sub-header after the MAC sub-data unit corresponding to the sub-header or the MAC sub-data unit corresponding to the MAC sub-header.
  • the UE determines the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header. There is no MAC sub-header or MAC sub-data unit corresponding to the MAC sub-header, that is, the random access response message is read.
  • the embodiment 9 provides an information transmission device.
  • the principle of the device is similar to the method of the embodiment 1. Therefore, the specific implementation may refer to the implementation of the method in the embodiment 1. .
  • FIG. 13 is a schematic diagram of an information transmission apparatus according to Embodiment 9 of the present invention. As shown in FIG. 13, the apparatus 1300 includes:
  • the first sending unit 1301 is configured to send, to the user equipment, symbol identifier information, where the symbol identifier information indicates related information of symbols used by the random access preamble sequence sent by the user equipment.
  • the implementation of the first sending unit 1301 may refer to step 101 in Embodiment 1, and details are not described herein again.
  • the meaning and the carrying manner of the symbol identification information are as described in Embodiment 1, and the symbol identification information is sent, for example, by using a random access response message.
  • the symbol identification information is included in a media intervention control layer (MAC) sub-head of the random access response message or a MAC sub-data unit corresponding to the MAC sub-header.
  • the related information of the symbol is symbol position information occupied by the random access preamble sequence sent by the user equipment in the time domain.
  • the symbol identification information is a field of at least 4 bits.
  • the UE can receive the symbol identification information returned by the network side, and distinguish the random access response sent in the random access response message according to the symbol identification information, thereby solving the problem existing in the prior art.
  • the embodiment 10 provides a network device.
  • the method for solving the problem is similar to the method in the embodiment 1. Therefore, the specific implementation may be implemented by referring to the method in the embodiment 1.
  • Also provided in this embodiment is a network device (not shown) configured with a data indicating device 1300 as previously described.
  • the embodiment 10 further provides a network device.
  • the method for solving the problem is similar to the method of the embodiment 1. Therefore, the specific implementation may be implemented by referring to the method of the embodiment 1.
  • 14 is a schematic diagram of the configuration of the network device; as shown in FIG. 14, the network device 1400 may include a central processing unit (CPU) 1401 and a memory 1402; and the memory 1402 is coupled to the central processing unit 1401.
  • the memory 1402 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 1401 to transmit related information.
  • the functionality of device 1300 can be integrated into central processor 1401.
  • the central processing unit 1401 may be configured to implement the information transmission method described in Embodiment 1.
  • the central processing unit 1401 may be configured to transmit symbol identification information to the user equipment, the symbol identification information indicating related information of symbols used by the random access preamble sequence transmitted by the user equipment.
  • the meaning and the carrying manner of the symbol identification information are as described in Embodiment 1, and the symbol identification information is sent, for example, by using the random access response message.
  • the symbol identification information is included in the random access ring
  • the media of the message should be involved in the control sub-layer (MAC) sub-header or the MAC sub-data unit corresponding to the MAC sub-header.
  • the related information of the symbol is symbol position information occupied by the random access preamble sequence sent by the user equipment in the time domain.
  • the symbol identification information is a field of at least 4 bits.
  • Embodiment 1 For details, refer to Embodiment 1 for the specific configuration of the central processing unit 1401, and details are not described herein again.
  • the foregoing apparatus 1300 may be configured separately from the central processing unit 1401.
  • the apparatus 1300 may be configured as a chip connected to the central processing unit 1401, such as the unit shown in FIG. 14, through the central processing unit 1401. Control is implemented to implement the functionality of device 1300.
  • the network device 1400 may further include: a transceiver 1403, an antenna 1404, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It should be noted that the network device 1400 does not have to include all the components shown in FIG. 14; in addition, the network device 1400 may further include components not shown in FIG. 14, and reference may be made to the prior art.
  • the UE can receive the symbol identification information returned by the network side, and distinguish the random access response sent in the random access response message according to the symbol identification information, thereby solving the problem existing in the prior art.
  • the embodiment 11 further provides an information transmission device.
  • the principle of the device is similar to that of the second embodiment. Therefore, the specific implementation may refer to the implementation of the method in the second embodiment. .
  • Figure 15 is a schematic diagram of an information transmission apparatus according to Embodiment 11 of the present invention. As shown in Figure 15, the apparatus 1500 includes:
  • the first receiving unit 1501 is configured to receive symbol identification information sent by the network side, where the symbol identification information indicates related information of the symbol used by the user equipment to send the random access preamble sequence.
  • the specific implementation manner of the first receiving unit 1501 may be referred to the step 301 of the embodiment 2.
  • the details of the symbol identification information may be referred to the embodiment 1 and will not be further described herein.
  • the first receiving unit 1501 reads the random access response message sent by the network side to receive the symbol identification information.
  • the device further includes:
  • the determining unit 1502 is configured to use the symbol identification information to determine whether the random access response data included in the random access response message sent by the network side is successfully received.
  • the related information of the symbol is symbol position information occupied by the random access preamble sequence sent by the user equipment in the time domain.
  • FIG. 16 is a schematic diagram of an embodiment of the determining unit 1502. As shown in FIG. 16, the determining unit includes:
  • a first determining module 1601 configured to determine whether a symbol position indicated by the symbol identification information matches a symbol position occupied by a random access preamble sequence sent by the user equipment in a time domain; and/or,
  • a second determining module 1602 configured to determine whether the random access preamble sequence identifier included in the random access response message is consistent with the random access preamble sequence identifier sent by the user equipment;
  • the determining unit 1502 may further include:
  • a determining module 1603 configured to: when the first determining module determines that the result is a match, determining that the random access response data included in the random access response message is successfully received; or
  • the determining module 1603 determines that the result is a match when the first determining module 1601 determines that the result is a match, and determines that the random access response data included in the random access response message is successfully received.
  • the specific implementation manner of the determining unit 1502 may refer to step 302 in Embodiment 2, and details are not described herein again.
  • the UE can receive the symbol identification information returned by the network side, and distinguish the random access response sent in the random access response message according to the symbol identification information, thereby solving the problem existing in the prior art.
  • the present embodiment further provides a user equipment.
  • the method for solving the problem is similar to the method of the second embodiment. Therefore, the specific implementation may be implemented by referring to the method in the second embodiment.
  • a user equipment (not shown) is further provided, which is equipped with the information transmission device 1500 as described above.
  • FIG. 17 is a schematic diagram of the configuration of the user equipment according to Embodiment 12 of the present invention; as shown in FIG. 17, the user equipment 1700 may include: a central processing unit (CPU) 1701 and a memory 1702; and a memory 1702. Coupled to central processor 1701.
  • the memory 1702 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 1701 for information transmission.
  • the functionality of device 1500 can be integrated into central processor 1701.
  • the central processing unit 1701 may be configured to implement the information transmission method described in Embodiment 2.
  • the central processing unit 1701 may be configured to: receive symbol identification information sent by the network side, where the symbol identification information indicates related information of the symbol used by the user equipment to send the random access preamble sequence.
  • the central processing unit 1701 may be configured to: read a random access response message sent by the network side to receive the symbol identification information; and use the symbol identification information to determine the random access included in the random access response message sent by the network side. The response data was successfully received.
  • the related information of the symbol is symbol position information occupied by the random access preamble sequence sent by the user equipment in the time domain;
  • the central processing unit 1701 may be configured to: determine whether the symbol position indicated by the symbol identification information matches the symbol position occupied by the random access preamble sequence sent by the user equipment in the time domain; or determine the symbol identification information indication Whether the symbol position coincides with the symbol position occupied by the random access preamble sequence sent by the user equipment in the time domain and whether the random access preamble sequence identifier included in the random access response message is randomly transmitted with the user equipment The access preamble sequence identifiers match.
  • the central processing unit 1701 may be configured to: when the determination result is consistent, determine that the random access response data included in the random access response message is successfully received.
  • the above device 1300 can be configured separately from the central processing unit 1701.
  • the device 1500 can be configured as a chip connected to the central processing unit 1701, such as the information transmission unit shown in FIG.
  • the control of 1701 implements the functionality of device 1500.
  • the user equipment 1700 may further include: a communication module 1703, an input unit 1704, a display 1706, an audio processor 1705, an antenna 1707, a power source 1708, and the like.
  • a communication module 1703 an input unit 1704, a display 1706, an audio processor 1705, an antenna 1707, a power source 1708, and the like.
  • the functions of the above components are similar to those of the prior art, and are not described herein again.
  • the user equipment 1700 does not have to include all the components shown in FIG. 17; in addition, the user equipment 1700 may further include components not shown in FIG. 17, and reference may be made to the prior art.
  • the UE can receive the symbol identification information returned by the network side, and distinguish the random access response sent in the random access response message according to the symbol identification information, thereby solving the problem existing in the prior art.
  • the embodiment 13 also provides a random access device. Since the principle of solving the problem is similar to the method of the embodiment 4, the specific implementation may refer to the implementation of the method of the embodiment 4, and the description of the same portions is not repeated.
  • the device 1800 includes:
  • a second sending unit 1801 configured to send a random access response message to the user equipment, where the random access response message includes data type indication information, where the data type indication information indicates data of a MAC subheader or a MAC subdata unit Format and/or use, wherein the data format includes a first data format including a preamble identifier but no corresponding random access response data, the use including an indication for indicating an on-demand system information request One use.
  • the specific implementation manner of the second sending unit 1801 may refer to step 501 in Embodiment 4, and details are not described herein again.
  • the meaning of the data type indication information may refer to Embodiment 4, and details are not described herein again.
  • the data type indication information is included in the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header of the random access response message.
  • the data format further includes a second data format of the random backoff indication information, and/or a third data format including at least the preamble identifier and its corresponding random access response data.
  • the use also includes a second use for indicating a random backoff time, and/or a third use for indicating a normal random access response.
  • the data type indication information is a 1 or 2 bit field.
  • the data type used to indicate the random access response message can be used to indicate the confirmation of the on-demand system information request, thereby solving the existing Problems in technology.
  • the embodiment 14 provides a network device.
  • the method for solving the problem is similar to the method of the embodiment 4. Therefore, the specific implementation may be implemented by referring to the method of the embodiment 4.
  • Also provided in this embodiment is a network device (not shown) configured with a random access device 1800 as previously described.
  • the embodiment 14 further provides a network device.
  • the method for solving the problem is similar to the method of the embodiment 4. Therefore, the specific implementation may be implemented by referring to the method of the embodiment 4.
  • Fig. 19 is a schematic diagram showing the structure of the network device.
  • network device 1900 can include a central processing unit (CPU) 1901 and a memory 1902; and memory 1902 coupled to central processing unit 1901.
  • the memory 1902 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 1901 to transmit related information.
  • the functionality of device 1800 can be integrated into central processor 1901.
  • the central processing unit 1901 can be configured to implement the random access method described in Embodiment 4.
  • the central processing unit 1901 may be configured to: send a random access response message to the user equipment, where the random access response message includes data type indication information, where the data type indication information indicates a MAC sub-header or a MAC sub-data unit.
  • the meaning of the data type indication information may refer to Embodiment 4, and details are not described herein again.
  • the data type indication information is included in the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header of the random access response message.
  • the data format further includes a second data format of the random backoff indication information, and/or a third data format including at least the preamble identifier and its corresponding random access response data.
  • the use also includes a second use for indicating a random backoff time, and/or a third use for indicating a normal random access response.
  • the data type indication information is a 1 or 2 bit field.
  • Embodiment 4 for the specific configuration of the central processing unit 1901, and details are not described herein again.
  • the above device 1800 can be configured separately from the central processing unit 1901.
  • the device 1800 can be configured as a chip connected to the central processing unit 1901, such as the unit shown in FIG. 19, through the central processing unit 1901. Control is implemented to implement the functionality of device 1800.
  • the network device 1900 may further include: a transceiver 1903, an antenna 1904, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It should be noted that the network device 1900 does not have to include all the components shown in FIG. 19; in addition, the network device 1900 can also include Referring to components not shown in FIG. 19, reference may be made to the prior art.
  • the data type used to indicate the random access response message can be used to indicate the confirmation of the on-demand system information request, thereby solving the existing Problems in technology.
  • the embodiment 15 further provides a random access device.
  • the principle of the device is similar to that of the embodiment 5. Therefore, the specific implementation may refer to the implementation of the method in the embodiment 5, and the content is the same. Description.
  • the device 2000 includes:
  • a second receiving unit 2001 configured to receive a random access response message, where the random access response message includes data type indication information, where the data type indication information indicates a data format and/or a use of the MAC sub-data unit, where
  • the data format includes a first data format including a preamble identifier but no corresponding random access response data, the use including a first use for indicating an acknowledgment of the on-demand system information request.
  • step 801 of Embodiment 5 For the implementation of the second receiving unit 2001, refer to step 801 of Embodiment 5, and details are not described herein again.
  • the data type indication information is included in the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header of the random access response message.
  • the data format further includes a second data format of the random backoff indication information, and/or a third data format including at least the preamble identifier and its corresponding random access response data.
  • the use also includes a second use for indicating a random backoff time, and/or a third use for indicating a normal random access response.
  • the data type indication information is a 1 or 2 bit field.
  • the data type used to indicate the random access response message can be used to indicate the confirmation of the on-demand system information request, thereby solving the existing Problems in technology.
  • the embodiment of the present invention further provides a user equipment.
  • the method for solving the problem is similar to the method of the embodiment 5. Therefore, the specific implementation may be implemented by referring to the method of the embodiment 5.
  • Also provided in this embodiment is a user equipment (not shown) configured with a random access device 2000 as previously described.
  • FIG. 21 is a schematic diagram of the configuration of the user equipment according to Embodiment 16 of the present invention; as shown in FIG. 21, the user equipment 2100 may include: a central processing unit (CPU) 2101 and a memory 2102; and a memory 2102. Coupled to central processor 2101.
  • the memory 2102 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 2101 to perform random access.
  • the functionality of device 2000 can be integrated into central processor 2101.
  • the central processing unit 2101 can be configured to implement the random access method described in Embodiment 5.
  • the central processing unit 2101 can be configured to: receive a random access response message, the random access response message including data type indication information, the data type indication information indicating a data format and/or use of the MAC sub-data unit And wherein the data format includes a first data format including a preamble identifier but no corresponding random access response data, the use including a first use for indicating an acknowledgment of the on-demand system information request.
  • the data type indication information is included in the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header of the random access response message.
  • the data format further includes a second data format of the random backoff indication information, and/or a third data format including at least the preamble identifier and its corresponding random access response data.
  • the use also includes a second use for indicating a random backoff time, and/or a third use for indicating a normal random access response.
  • the data type indication information is a 1 or 2 bit field.
  • the above device 2000 may be configured separately from the central processing unit 2101.
  • the device 2000 may be configured as a chip connected to the central processing unit 2101, such as the random access unit shown in FIG. 21, through central processing.
  • the control of the device 2101 implements the functions of the device 2000.
  • the user equipment 2100 may further include: a communication module 2103, an input unit 2104, a display 2106, an audio processor 2105, an antenna 2107, a power source 2108, and the like.
  • a communication module 2103 the functions of the above components are similar to those of the prior art, and are not described herein again. It is worth noting that the user equipment 2100 is not required to be packaged. All of the components shown in FIG. 21 are included; in addition, the user equipment 2100 may also include components not shown in FIG. 21, and reference may be made to the prior art.
  • the data type used to indicate the random access response message can be used to indicate the confirmation of the on-demand system information request, thereby solving the existing Problems in technology.
  • the embodiment 17 further provides a random access device.
  • the principle of solving the problem is similar to the method of the embodiment 6. Therefore, the specific implementation may refer to the implementation of the method in the embodiment 6, and the content is the same. Description.
  • Figure 22 is a schematic diagram of a random access device according to Embodiment 17 of the present invention. As shown in Figure 16, the device 2200 includes:
  • a third receiving unit 2201 configured to receive a random access response message
  • a first determining unit 2202 where the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-head in the random access response message includes a random access preamble sequence identifier, and the random access preamble sequence identifier belongs to a pre-configuration
  • the sequence identification set of the random access preamble sequence for the on-demand system information request is used, determining that the MAC sub-header or the MAC sub-data unit corresponding to the MAC sub-header is used for indicating the confirmation of the on-demand system information request; or
  • the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header in the random access response message includes a random access preamble sequence identifier, and the random access preamble sequence identifier does not belong to the pre-configured system information for on-demand
  • the specific implementation manners of the third receiving unit 2201 and the first determining unit 2202 may refer to the steps 901-902 of Embodiment 6, and details are not described herein again.
  • the RAPID included in the random access response message implicitly indicates that the data type of the random access response message can be used to indicate the confirmation of the on-demand system information request, thereby solving the prior art. There are problems, in addition, saving bit information.
  • the present embodiment further provides a user equipment.
  • the method for solving the problem is similar to the method of the embodiment 6. Therefore, the specific implementation may be implemented by referring to the method of the embodiment 6.
  • Also provided in this embodiment is a user equipment (not shown) that is configured with a random access device 2200 as previously described.
  • FIG. 23 is a schematic structural diagram of a user equipment according to Embodiment 18 of the present invention.
  • the user equipment 2300 may include: a central processing unit (CPU) 2301 and a memory 2302; 2302 is coupled to central processor 2301.
  • the memory 2302 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processor 2301 for random access.
  • the functionality of device 2200 can be integrated into central processor 2301.
  • the central processing unit 2301 can be configured to implement the random access method described in Embodiment 6.
  • the central processing unit 2301 may be configured to: receive a random access response message; the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-head in the random access response message includes a random access preamble sequence identifier, and the When the random access preamble sequence identifies the sequence identification set of the random access preamble sequence that is configured for the on-demand system information request, the purpose of determining the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header is used for indicating The acknowledgment of the on-demand system information request; or the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header in the random access response message includes a random access preamble sequence identifier, and the random access preamble sequence identifier does not belong to When the sequence identification set of the random access preamble sequence for the on-demand system information request is pre-configured, the purpose of determining the MAC sub-data unit corresponding to the MAC sub-head
  • the above device 2200 can be configured separately from the central processing unit 2301.
  • the device 2200 can be configured as a chip connected to the central processing unit 2301, such as the random access unit shown in FIG.
  • the control of the device 2301 implements the functions of the device 2200.
  • the user equipment 2300 may further include: a communication module 2303, an input unit 2304, a display 2306, an audio processor 2305, an antenna 2307, a power source 2308, and the like.
  • a communication module 2303 the user equipment 2300 does not necessarily have to include all the components shown in FIG. 23; in addition, the user equipment 2300 may also include components not shown in FIG. 23, and reference may be made to the prior art.
  • the RAPID included in the random access response message implicitly indicates that the data type of the random access response message can be used to indicate the confirmation of the on-demand system information request, thereby solving the prior art. There are problems, in addition, saving bit information.
  • the present embodiment 19 further provides a random access device.
  • the principle of the device is similar to that of the seventh embodiment. Therefore, the specific implementation may refer to the implementation of the method in the seventh embodiment. Description.
  • Figure 24 is a schematic diagram of a random access device according to Embodiment 19 of the present invention. As shown in Figure 24, the device 2400 includes:
  • the third sending unit 2401 is configured to send a random access response message, where the random access response message includes multiple MAC sub-headers or MAC sub-data units corresponding to the MAC sub-headers, where the random back-off indication message is included.
  • the location of the MAC sub-data unit corresponding to the MAC sub-header or the MAC sub-header is the last one of all MAC sub-headers or MAC sub-data units corresponding to the MAC sub-header.
  • the format of the random access response message may refer to Embodiment 7, and details are not described herein again.
  • the specific implementation manner of the third sending unit 2401 can refer to step 1001 of Embodiment 7, and details are not described herein again.
  • the embodiment 20 provides a network device.
  • the method for solving the problem is similar to the method of the embodiment 20. Therefore, the specific implementation may be implemented by referring to the method in the seventh embodiment.
  • Also provided in this embodiment is a network device (not shown) configured with a random access device 2400 as previously described.
  • FIG. 25 is a schematic diagram of the network device according to Embodiment 20 of the present invention.
  • the network device 2500 may include a central processing unit (CPU) 2501 and A reservoir 2502; a memory 2502 is coupled to the central processor 2501.
  • the memory 2502 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 2501 to transmit related information.
  • the functionality of device 2400 can be integrated into central processor 2501.
  • the central processing unit 2501 can be configured to implement the random access method described in Embodiment 7.
  • the central processing unit 2501 may be configured to: send a random access response message, where the random access response message includes multiple MAC sub-headers or MAC sub-data units corresponding to the MAC sub-heads, where the random back-off indication is included
  • the MAC sub-header of the message or the MAC sub-data unit corresponding to the MAC sub-header is located at the last of all MAC sub-headers or MAC sub-data units corresponding to the MAC sub-header.
  • the format of the random access response message may refer to Embodiment 7, and details are not described herein again.
  • Embodiment 7 for the specific configuration of the central processing unit 2501, and details are not described herein again.
  • the above device 2400 can be configured separately from the central processing unit 2501.
  • the device 2400 can be configured as a chip connected to the central processing unit 2501, such as the unit shown in FIG. 25, through the central processing unit 2501. Controls to implement the functionality of device 2400.
  • the network device 2500 may further include: a transceiver 2503, an antenna 2504, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It should be noted that the network device 2500 does not necessarily have to include all the components shown in FIG. 25; in addition, the network device 2500 may further include components not shown in FIG. 25, and reference may be made to the prior art.
  • the embodiment 21 further provides a random access device.
  • the principle of the device is similar to the method of the eighth embodiment. Therefore, the specific implementation may refer to the implementation of the method in the eighth embodiment. Description.
  • Figure 26 is a schematic diagram of a random access device according to Embodiment 21 of the present invention. As shown in Figure 26, the device 2600 includes:
  • a fourth receiving unit 2601 configured to receive a random access response message, where the random access response is cancelled
  • the information includes multiple MAC sub-headers or MAC sub-data units corresponding to the MAC sub-headers, where the MAC sub-header including the random back-off indication message or the MAC sub-data unit corresponding to the MAC sub-header is in all MAC sub-headers or MAC sub-locations. The last of the MAC sub-data units corresponding to the header.
  • the format of the random access response message may refer to Embodiment 7, and details are not described herein again.
  • the device may further include:
  • a second determining unit 2602 configured to sequentially read a plurality of MAC sub-headers or MAC sub-data units corresponding to the MAC sub-heads included in the random access response message, and read the MAC sub-header including the random backoff indication message or When the MAC sub-data unit corresponding to the MAC sub-header determines that the random access response message is read.
  • the specific implementation manners of the fourth receiving unit 2601 and the second determining unit 2602 may refer to the steps 1201-1202 of Embodiment 8, and details are not described herein again.
  • the present embodiment further provides a user equipment.
  • the method for solving the problem is similar to the method of the eighth embodiment. Therefore, the specific implementation may be implemented by referring to the method in the eighth embodiment.
  • Also provided in this embodiment is a user equipment (not shown) that is configured with a random access device 2600 as previously described.
  • FIG. 27 is a schematic structural diagram of a user equipment according to Embodiment 22 of the present invention
  • FIG. 27 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • user equipment 2700 can include a central processing unit (CPU) 2701 and a memory 2702; and a memory 2702 coupled to central processing unit 2701.
  • the memory 2702 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 2701 for random access.
  • the functionality of device 2600 can be integrated into central processor 2701.
  • the central processing unit 2701 may be configured to implement the random access method described in Embodiment 8.
  • the central processing unit 2701 may be configured to: receive a random access response message, where the random access response message includes a plurality of MAC sub-headers or MAC sub-data units corresponding to the MAC sub-headers, where the random backoff is included Indicates the MAC sub-header of the message or the MAC sub-data unit corresponding to the MAC sub-header The last one of the MAC sub-data units corresponding to all MAC subheaders or MAC subheaders.
  • the format of the random access response message may refer to Embodiment 7, and details are not described herein again.
  • the central processing unit 2701 may be configured to: sequentially read a plurality of MAC sub-headers included in the random access response message or a MAC sub-data unit corresponding to the MAC sub-header, and read the MAC sub-inclusion including the random back-off indication message.
  • the header or the MAC sub-data unit corresponding to the MAC sub-header is determined, it is determined that the random access response message is read.
  • the above device 2600 can be configured separately from the central processing unit 2701.
  • the device 2600 can be configured as a chip connected to the central processing unit 2701, such as the random access unit shown in FIG.
  • the control of device 2701 implements the functionality of device 2600.
  • the user equipment 2700 may further include: a communication module 2703, an input unit 2704, a display 2706, an audio processor 2705, an antenna 2707, a power source 2708, and the like.
  • a communication module 2703 an input unit 2704, a display 2706, an audio processor 2705, an antenna 2707, a power source 2708, and the like.
  • the functions of the above components are similar to those of the prior art, and are not described herein again.
  • the user equipment 2700 also does not have to include all the components shown in FIG. 27; in addition, the user equipment 2700 may also include components not shown in FIG. 27, and reference may be made to the prior art.
  • each cell base station can generate 64 random access preamble sequences according to the root sequence and the cyclic shift sequence generated by the root sequence, the user is sent with a 6-bit field in the random access response message.
  • the serial number identifier of the random access preamble sequence is the serial number identifier of the random access preamble sequence.
  • the number of random access preamble sequences may be greater than 64. Therefore, the 6-bit field in the random access response message cannot indicate the sequence number identifier of the random access preamble sequence.
  • the present embodiment provides a random access method, device, and communication system, which can directly adapt to the random access preamble sequence by using two parts of indication information, thereby being able to adapt to the expansion of the number of random access preamble sequences, and solving the prior art. There are problems.
  • Embodiment 23 of the present invention provides a random access method, which is applied to a network device side, for example, may be applied to a device that responds to a random access procedure initiated by a user equipment.
  • FIG. 28 is a flowchart of the random access method in this embodiment. As shown in FIG. 28, the method includes:
  • Step 2801 using the first indication information and the second indication information to indicate a random access preamble sequence.
  • the first indication information and the second indication information are used to indicate related information of the random access preamble sequence.
  • the related information may be a serial number identifier, for example, a RAPID, and the first indication information and the second indication information may be used to indicate the RAPID, but the embodiment is not limited thereto, and the related information may also be a random access preamble. Additional information about the sequence.
  • the related information may be a first predetermined number (N) of bit fields.
  • the first indication information may be carried by the random access response message, for example, the first indication information is a second predetermined number N1 bit field, and the high order bit of the related information (such as a high N1 bit) passes the first The indication information indicates, or the lower bits of the related information (such as low N1 bit) are indicated by the first indication information.
  • N1 may be equal to 6, ie, the upper 6 bits of the sequence number of the random access preamble sequence are indicated according to a 6-bit field in the random access response message (Msg. 2) (eg, may be an existing RAPID 6-bit field). Or lower 6 bits, but this embodiment is not limited thereto. N1 may also be greater than 6 (for example, may be an existing RAPID 6 bit field + other extension field), or may be less than 6 (for example, may be part of an existing RAPID) Bit field).
  • the random access response message sent to the UE side may be scrambled by using the scrambling information, wherein the second indication information is indicated by using the scrambling information.
  • the scrambling information is a random access radio network temporary identifier RA-RNTI.
  • the second indication information is a third predetermined number N2 of bit fields, and the upper bits of the related information (such as high N2 bits) are indicated by the second indication information, or the lower bits of the related information (such as low N2 bits) Bit) is indicated by the second indication information.
  • the second indication information may be indicated by using the calculation manner of the scrambling information.
  • the scrambling information is calculated according to the second indication information, for example, the calculation manner of the existing RA-RNTI.
  • RA-RNTI 1+t_id+10 ⁇ f_id, where t_id is a subframe index, and f_id is a first time-frequency resource in a subframe.
  • the second indication information needs to be considered when calculating the RA-RNTI.
  • N1 and N2 are positive integers.
  • the calculation formula of the above RA-RNTI is only an example, and the embodiment is not limited thereto.
  • the two parts of the indication information jointly indicate the random access preamble sequence, thereby being able to adapt to the expansion of the number of random access preamble sequences, and solving the problems existing in the prior art.
  • Embodiment 24 of the present invention provides a random access method, which is applied to a user equipment side, for example, an apparatus that can be applied to an initiated random access procedure.
  • FIG. 29 is a flowchart of a random access method in this embodiment. As shown in FIG. 29, the method includes:
  • Step 2901 Determine a random access preamble sequence by using the first indication information and the second indication information.
  • the first indication information and the second indication information are used to indicate related information of the random access preamble sequence.
  • the related information may be a serial number identifier, such as a RAPID, and the first indication information and the second indication information may be used to indicate the RAPID.
  • the related information may be a first predetermined number (N) of bit fields.
  • the following describes separately how to determine the random access preamble sequence by using the first indication information and the second indication information.
  • the determining, by the UE, the random access preamble sequence according to the second indication information may be: determining, according to the second indication information, descrambling information of the random access response message sent by the descrambling network side, according to the second
  • a part of the correlation information (for example, RAPID) of the random access preamble sequence is successfully verified (ie, corresponding to the corresponding part of the related information of the random access preamble sequence transmitted by the UE).
  • the descrambling information is a temporary identifier of the random access wireless network.
  • the second indication information is a third predetermined number N2 of bit fields, and the upper bits of the related information (such as high N2 bits) are indicated by the second indication information, or the lower bits of the related information (such as low N2 bits) Bit) indicates by the second indication information, for example, that the descrambling information determined according to the second indication information succeeds
  • the high-order bit or the low-order bit of the related information (for example, RAPID) of the random access preamble sequence is successfully checked (that is, the corresponding high-order bit or low-order bit of the related information of the random access preamble sequence transmitted by the UE is the same).
  • the descrambling information may be calculated according to the second indication information.
  • the second indication information needs to be considered when calculating the RA-RNTI.
  • the calculation formula of the above RA-RNTI is only an example, and the embodiment is not limited thereto.
  • the method may further include:
  • Step 2900 Receive a random access response message (Msg. 2) that is sent by the network side and that carries the first indication information, and obtain the first indication information according to the random access response message.
  • Msg. 2 a random access response message
  • the first indication information is a second predetermined number N1 bit field, and a high order bit (such as a high N1 bit bit) of the related information is indicated by the first indication information, or a low order bit of the related information ( Such as a low N1 bit bit) is indicated by the first indication information.
  • N1 may be equal to 6, ie, the upper 6 bits of the sequence number of the random access preamble sequence are indicated according to a 6-bit field in the random access response message (Msg. 2) (eg, may be an existing RAPID 6-bit field). Or lower 6 bits, but this embodiment is not limited thereto. N1 may also be greater than 6 (for example, may be an existing RAPID 6 bit field + other extension field), or may be less than 6 (for example, may be part of an existing RAPID) Bit field).
  • the user equipment reads the random access response message, for example, determining the first indication information according to the RAPID field in the random access response message.
  • the determining, by the UE, the random access preamble sequence according to the first indication information may be performed by comparing the read first indication information with another part of the related information of the random access preamble sequence sent by the UE, where the first indication information is used. When the other part of the related information is coincident, another part of the information indicating the random access preamble sequence is successfully verified.
  • the comparison result indicates that the verification is successful (that is, the corresponding high-order bit or low-order bit of the related information of the random access preamble sequence transmitted by the UE is the same).
  • the random access response message When the random access response message is read, indicating that the second indication information has been successfully descrambled, that is, determining that a part of the correlation information of the random access preamble sequence is successfully verified according to the second indication information, and determining according to the first indication information
  • Another part of the information about the random access preamble sequence is successfully verified that is, the information about the random access preamble sequence (for example, RAPID) is the same as the information about the random access preamble sequence sent by the UE (for example, RAPID), indicating that the random access is random.
  • the random access response data (RAR) in the incoming response message is successfully received, and also indicates that the random access response data in the random access response message is sent to the UE itself, instead of being sent to other UEs.
  • N1 and N2 are positive integers.
  • the two parts of the indication information jointly indicate the random access preamble sequence, thereby being able to adapt to the expansion of the number of random access preamble sequences, and solving the problems existing in the prior art.
  • the embodiment 25 further provides a random access device.
  • the principle of solving the problem is similar to the method of the embodiment 23. Therefore, the specific implementation may refer to the implementation of the method in the embodiment 23. Description.
  • Figure 30 is a schematic diagram of a random access device according to Embodiment 25 of the present invention. As shown in Figure 30, the device 3000 includes:
  • the indication unit 3001 is configured to indicate the random access preamble sequence by using the first indication information and the second indication information.
  • the first indication information is carried by the random access response message.
  • the device may further include:
  • the first processing unit 3002 is configured to scramble the random access response message sent to the UE side by using the scrambling information, where the second indication information is indicated by using the scrambling information.
  • the scrambling information is a temporary identifier of the random access wireless network.
  • the indication unit 3001 uses the first indication information and the second indication information to indicate related information of the random access preamble sequence, where the related information is a sequence number identifier, and the related information is a first predetermined number of bit fields. .
  • the first indication information and the second indication information may be bit fields, and the specific representation method may refer to Embodiment 23 will be omitted and will not be described herein.
  • the two parts of the indication information jointly indicate the random access preamble sequence, thereby being able to adapt to the expansion of the number of random access preamble sequences, and solving the problems existing in the prior art.
  • the embodiment 26 provides a network device.
  • the method for solving the problem is similar to the method of the embodiment 26. Therefore, the specific implementation may be implemented by referring to the method of the embodiment 23.
  • Also provided in this embodiment is a network device (not shown) configured with a random access device 3000 as previously described.
  • FIG. 31 is a schematic diagram of a network device according to Embodiment 26 of the present invention.
  • the network device 3100 may include: a central processing unit (CPU) 3101 and a memory 3102; Memory 3102 is coupled to central processor 3101.
  • the memory 3102 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 3101 to transmit related information.
  • the functionality of device 3000 can be integrated into central processor 3101.
  • the central processing unit 3101 can be configured to implement the random access method of Embodiment 23.
  • the central processor 3101 can be configured to indicate a random access preamble sequence using the first indication information and the second indication information.
  • the first indication information is carried by the random access response message.
  • the central processing unit 3101 may be configured to scramble the random access response message transmitted to the UE side by using the scrambling information, wherein the second indication information is indicated by the scrambling information.
  • the scrambling information is a temporary identifier of the random access wireless network.
  • the first indication information and the second indication information may be a bit field, and the specific representation method may refer to Embodiment 23, and details are not described herein again.
  • Embodiment 23 for the specific configuration of the central processing unit 3101, and details are not described herein again.
  • the above device 3000 may be configured separately from the central processing unit 3101.
  • the device 3000 may be configured as a chip connected to the central processing unit 3101, such as the unit shown in FIG. 31, through the central processing unit 3101. Control is implemented to implement the functionality of device 3000.
  • the network device 3100 may further include: a transceiver 3103, an antenna 3104, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It should be noted that the network device 3100 does not have to include all the components shown in FIG. 31; in addition, the network device 3100 may further include components not shown in FIG. 31, and reference may be made to the prior art.
  • the two parts of the indication information jointly indicate the random access preamble sequence, thereby being able to adapt to the expansion of the number of random access preamble sequences, and solving the problems existing in the prior art.
  • the embodiment 27 further provides a random access device.
  • the principle of solving the problem is similar to the method of the embodiment 24. Therefore, the specific implementation may refer to the implementation of the method in the embodiment 24, and the content is the same. Description.
  • the device 3200 includes:
  • the determining unit 3201 is configured to determine the random access preamble sequence by using the first indication information and the second indication information.
  • the device may further include:
  • the fifth receiving unit 3202 is configured to receive a random access response message that is sent by the network side and that carries the first indication information, where the determining unit 3201 obtains the first indication information according to the random access response message.
  • the determining unit 3201 determines the descrambling information of the random access response message sent by the descrambling network side according to the second indication information to determine the random access preamble sequence.
  • the descrambling information is a temporary identifier of the random access wireless network.
  • the related information is a serial number identifier, and the related information is a first predetermined number of bit fields.
  • the first indication information and the second indication information may be a bit field, and the specific representation method may refer to Embodiment 24, and details are not described herein again.
  • the specific implementation manners of the determining unit 3201 and the fifth receiving unit 3202 can refer to steps 2900-2901 in Embodiment 24, and details are not described herein again.
  • the two parts of the indication information jointly indicate the random access preamble sequence, thereby being able to adapt to the expansion of the number of random access preamble sequences, and solving the problems existing in the prior art.
  • the embodiment of the present invention further provides a user equipment.
  • the method for solving the problem is similar to the method of the embodiment 24. Therefore, the specific implementation may be implemented by referring to the method in the eighth embodiment.
  • Also provided in this embodiment is a user equipment (not shown) configured with a random access device 3200 as previously described.
  • FIG. 33 is a schematic diagram of the configuration of the user equipment according to Embodiment 28 of the present invention
  • FIG. 33 is a schematic diagram of the configuration of the user equipment according to the embodiment of the present invention.
  • the user equipment 3300 may include a central processing unit (CPU) 3301 and a memory 3302; the memory 3302 is coupled to the central processing unit 3301.
  • the memory 3302 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 3301 to perform random access.
  • the functionality of device 3200 can be integrated into central processor 3301.
  • the central processing unit 3301 can be configured to implement the random access method described in Embodiment 24.
  • the central processor 3301 can be configured to determine the random access preamble sequence using the first indication information and the second indication information.
  • the central processing unit 3301 may be configured to: receive a random access response message that is sent by the network side and that carries the first indication information, and obtain the first indication information according to the random access response message.
  • the central processing unit 3301 may be configured to: according to the second indication information, determine descrambling information of the random access response message sent by the descrambling network side to determine the random access preamble sequence.
  • the descrambling information is a random access wireless network temporary identifier, and the related information is a serial number identifier, and the related information is a first predetermined number of bit fields.
  • the first indication information and the second indication information may be a bit field, and the specific representation method may refer to Embodiment 24, and details are not described herein again.
  • the foregoing device 3200 can be configured separately from the central processing unit 3301.
  • the device 3200 can be configured as a chip connected to the central processing unit 3301, such as the random access unit shown in FIG.
  • the control of device 3301 implements the functionality of device 3200.
  • the user equipment 3300 may further include: a communication module 3303, an input unit 3304, a display 3306, an audio processor 3305, an antenna 3307, a power source 3308, and the like. Among them, the function of the above components Similar to the prior art, it will not be described here. It should be noted that the user equipment 3300 does not necessarily have to include all the components shown in FIG. 33; in addition, the user equipment 3300 may further include components not shown in FIG. 33, and reference may be made to the prior art.
  • the two parts of the indication information jointly indicate the random access preamble sequence, thereby being able to adapt to the expansion of the number of random access preamble sequences, and solving the problems existing in the prior art.
  • Figure 34 is a block diagram showing the configuration of a communication system according to Embodiment 29 of the present invention.
  • the communication system 3400 includes a network device 3401 and a user equipment 3402 on the network side.
  • the configuration of the network device 3401 and the user equipment 3402 may be as described in Embodiment 10 and Embodiment 12, and the content thereof is incorporated herein, and details are not described herein again.
  • the configuration of the network device 3401 and the user equipment 3402 may also be as described in Embodiment 14 and Embodiment 16, and the content thereof is incorporated herein, and details are not described herein again.
  • the network device 3401 can refer to the prior art, and the configuration of the user equipment 3402 can also be as described in Embodiment 18, and the content thereof is incorporated herein, and details are not described herein again.
  • the configuration of the network device 3401 and the user equipment 3402 may also be as described in Embodiment 20 and Embodiment 22, and the content thereof is incorporated herein, and details are not described herein again.
  • the configuration of the network device 3401 and the user equipment 3402 can also be as described in Embodiment 26 and Embodiment 28.
  • the working flow is as shown in FIG. 35, and the content thereof is incorporated herein, and details are not described herein again.
  • the method includes:
  • Step 3501 the UE sends a random access preamble sequence (Msg.1) to the network side;
  • Step 3502 The network side receives the random access preamble sequence sent by the UE, and determines a sequence number identifier of the random access preamble sequence, where the sequence number identifier is a first predetermined number of bit fields; according to the first predetermined number Calculating the RA-RNTI by three predetermined number of bit fields, and scrambling the PDCCH according to the calculated RA-RNTI;
  • Step 3503 sending, to the UE, a second predetermined number of bit field random access response messages (Msg. 2) in the first predetermined number;
  • Step 3504 the UE calculates an RA-RNTI according to a third predetermined number of bit fields in the first predetermined number, and according to the calculated RA-RNTI descrambled PDCCH, when successfully descrambling, receiving the first predetermined quantity a second predetermined number of bit field random access response messages (Msg. 2);
  • the network side and the UE calculate the RA-RNTI in the same manner, and the formula can be predefined according to the standard.
  • the formula can be predefined according to the standard.
  • Step 3505 the UE compares the second predetermined number of bit fields with another part of the bit (low or high) of the sequence number identifier of the random access preamble sequence sent in step 3501, and when the same, indicates that the RAR is successfully received.
  • the UE sends an uplink message (Msg.3) to the network side on the resource specified in the RAR.
  • the uplink message includes the UE identifier.
  • the Msg.3 may be a radio resource control connection request. RRC connection request).
  • Step 3507 The network side receives the uplink message, and returns a conflict resolution message (Msg.4) to the UE with successful random access according to the UE identifier included therein.
  • Msg.4 conflict resolution message
  • the method may further include a step (not shown): the network side sends the indication information to the UE, the indication message is used to indicate The time-frequency location of the random access preamble sequence used by the random access procedure and the access resources used may be referred to the prior art, and are not repeated here.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes the information transmission device or the user equipment to execute the information transmission method described in Embodiment 2 when the program is executed in an information transmission device or a user equipment .
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the information transmission device or the user equipment to perform the information transmission method described in Embodiment 2.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes the information transmission device or the network device to execute the information transmission method described in Embodiment 1 when the program is executed in an information transmission device or a network device .
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the information transmission device or the network device to execute the information transmission method described in Embodiment 1.
  • An embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a random access device or a network device base station, the program causes the random access device or network device to perform the method described in Embodiment 4 Random access method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a random access device or a network device to perform the random access method described in Embodiment 4.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a random access device or a user equipment base station, the program causes the random access device or user equipment to perform the method described in Embodiment 5 Random access method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a random access device or a user equipment to perform the random access method described in Embodiment 5.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a random access device or a user equipment base station, the program causes the random access device or user equipment to perform the method described in Embodiment 6 Random access method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a random access device or a user equipment to perform the random access method described in Embodiment 6.
  • An embodiment of the present invention further provides a computer readable program, wherein the program causes the random access device or network device to perform the method described in Embodiment 7 when the program is executed in a random access device or a network device base station Random access method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a random access device or a network device to perform the random access method described in Embodiment 7.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes the random access device or user equipment to perform the method described in Embodiment 8 when the program is executed in a random access device or a user equipment base station Random access method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a random access device or a user equipment to perform the random access method described in Embodiment 8.
  • An embodiment of the present invention further provides a computer readable program, wherein the program causes the random access device or network device to perform the method described in Embodiment 23 when the program is executed in a random access device or a network device base station Random access method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a random access device or a network device to perform the random access method described in Embodiment 23.
  • Embodiments of the present invention also provide a computer readable program, when at a random access device or a user equipment basis When the program is executed in the station, the program causes the random access device or user equipment to perform the random access method described in Embodiment 24.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a random access device or a user equipment to perform the random access method described in Embodiment 24.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • the random access method in the random access device described in connection with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional blocks shown in Figures 13-27, 30-33 and/or one or more combinations of functional blocks may correspond to various software modules of a computer program flow, or may correspond to Various hardware modules.
  • These software modules may correspond to the various steps shown in Figures 1,3-10, 12, 28-29, respectively.
  • These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • the software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional block diagrams described with respect to Figures 13-27, 30-33 and/or one or more combinations of functional block diagrams may be implemented as a general purpose processor, digital signal processing for performing the functions described herein. (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof.
  • DSP digital signal processing
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to Figures 13-27, 30-33 and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, Multiple microprocessors, communication with the DSP One or more microprocessors or any other such configuration.

Abstract

一种信息传输方法、装置、随机接入方法、装置和通信系统，其中，该信息传输装置包括：第一发送单元，其用于向用户设备发送符号标识信息，所述符号标识信息指示用户设备发送的随机接入前导序列所使用的符号的相关信息。由此，可以根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，解决了现有技术中存在的问题。

Description

信息传输方法以及装置、随机接入方法以及装置、通信系统 技术领域
本发明涉及通信领域，特别涉及一种信息传输方法以及装置、随机接入方法以及装置、通信系统。
背景技术
在长期演进(LTE，Long Term Evolution)系统中，随机接入过程包括基于竞争的随机接入过程(Contention based random access procedure)和基于非竞争的随机接入过程(Non-contention based random access procedure)。在基于竞争的随机接入过程中，不同UE之间共享随机接入前导序列(Random Access Preamble)，而在基于非竞争的随机接入过程中，基站可为UE指定随机接入前导序列。
在LTE系统中，UE发送随机接入前导序列的时域位置是指子帧，网络侧可以通过随机接入资源配置该子帧，不同UE发送随机接入前导序列所占用的子帧不同时，使用不同的随机接入无线网络临时标识(Random Access Radio Network Tempory Identity,RA-RNTI)加扰物理下行控制信道(Physical Downlink Control Channel，PDCCH)进行区分不同UE的随机接入响应(Random Access Response,RAR)，不同UE发送随机接入前导序列所占用的子帧相同时，使用随机接入前导序列标识(Random Access Preamble Identity,RAPID)进行区分不同UE的随机接入响应。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
在未来无线通信系统，例如5G、新无线(NR，New Radio)系统中，UE发送随机接入前导序列的时域位置是不仅指子帧，还指发送该随机接入前导序列占用的时隙以及使用的符号。因此，在不同UE发送随机接入前导序列所占用的子帧以及时隙都相同时，UE通常会在相同或者相近的时刻接收到随机接入响应，不同UE的随机接 入响应适合复用在同一条随机接入响应消息(Msg.2)中，如果按照目前的机制，仅根据RA-RNTI和RAPID无法区分发送给不同UE的随机接入响应。
为了解决上述问题，本发明实施例提供一种信息传输方法、装置和通信系统，可帮助UE区分随机接入响应消息中发送的随机接入响应。
根据本实施例的第一方面，提供了一种信息传输装置，包括：第一发送单元，其用于向用户设备发送符号标识信息，该符号标识信息指示用户设备发送的随机接入前导序列所使用的符号的相关信息。
根据本实施例的第二方面，提供了一种信息传输装置，包括：第一接收单元，其用于接收网络侧发送的符号标识信息，该符号标识信息指示用户设备发送随机接入前导序列所使用的符号的相关信息。
根据本实施例的第三方面，提供了一种随机接入装置，包括：第二发送单元，其用于向用户设备发送随机接入响应消息，该随机接入响应消息中包含数据类型指示信息，该数据类型指示信息指示MAC子头或MAC子数据单元的数据格式和/或用途，其中，该数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，该用途包括用于指示按需系统信息请求的确认的第一用途。
根据本实施例的第四方面，提供了一种随机接入装置，包括：第二接收单元，其用于接收随机接入响应消息，该随机接入响应消息中包含数据类型指示信息，该数据类型指示信息指示MAC子数据单元的数据格式和/或用途，其中，该数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，该用途包括用于指示按需系统信息请求的确认的第一用途。
根据本实施例的第五方面，提供了一种随机接入装置，包括：第三接收单元，其用于接收随机接入响应消息；
第一确定单元，其用于在该随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且该随机接入前导序列标识属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示按需系统信息请求的确认；或者，在该随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且该随机接入前导序列标识不属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定该MAC子头 或者MAC子头对应的MAC子数据单元的用途是用于指示正常随机接入响应。
根据本实施例的第六方面，提供了一种随机接入装置，包括：第三发送单元，其用于发送随机接入响应消息，其中，该随机接入响应消息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
根据本实施例的第七方面，提供了一种随机接入装置，包括：第四接收单元，其用于接收随机接入响应消息，其中，该随机接入响应消息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
根据本实施例的第八方面，提供了一种随机接入装置，包括：指示单元，其用于利用第一指示信息和第二指示信息指示随机接入前导序列。
根据本实施例的第九方面，提供了一种随机接入装置，包括：确定单元，其用于利用第一指示信息和第二指示信息确定随机接入前导序列。
本发明实施例的有益效果在于，UE可接收到网络侧返回的符号标识信息，根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，由此解决现有技术中存在的问题。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或 更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
所包括的附图用来提供对本发明实施例的进一步的理解，其构成了说明书的一部分，用于例示本发明的实施方式，并与文字描述一起来阐释本发明的原理。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本发明实施例1的信息传输方法流程图；
图2是本发明实施例1的随机接入响应的格式示意图；
图3是本发明实施例2的信息传输方法流程图；
图4是本发明实施例3的随机接入方法流程图；
图5是本发明实施例4的随机接入方法流程图；
图6和7是本发明实施例4的随机接入响应的格式示意图；
图8是本发明实施例5的随机接入方法流程图；
图9是本发明实施例6的随机接入方法流程图；
图10是本发明实施例7的随机接入方法流程图；
图11是本发明实施例7的随机接入响应消息示意图；
图12是本发明实施例8的随机接入方法流程图；
图13是本发明实施例9的信息传输装置示意图；
图14是本发明实施例10的网络设备的构成示意图；
图15是本发明实施例11的信息传输装置示意图；
图16是本发明实施例11的判断单元示意图；
图17是本发明实施例12的用户设备的构成示意图；
图18是本发明实施例13的随机接入装置示意图；
图19是本发明实施例14的网络设备的构成示意图；
图20是本发明实施例15的随机接入装置示意图；
图21是本发明实施例16的用户设备的构成示意图；
图22是本发明实施例17的随机接入装置示意图；
图23是本发明实施例18的用户设备的构成示意图；
图24是本发明实施例19的随机接入装置示意图；
图25是本发明实施例20的网络设备的构成示意图；
图26是本发明实施例21的随机接入装置示意图；
图27是本发明实施例22的用户设备的构成示意图；
图28是本发明实施例23的随机接入方法流程图；
图29是本发明实施例24的随机接入方法流程图；
图30是本发明实施例25的随机接入装置示意图；
图31是本发明实施例26的网络设备的构成示意图；
图32是本发明实施例27的随机接入装置示意图；
图33是本发明实施例28的用户设备的构成示意图；
图34是本发明实施例29的通信系统构成示意图。
图35是本发明实施例29的随机接入方法流程图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。下面结合附图对本发明的各种实施方式进行说明。这些实施方式只是示例性的，不是对本发明的限制。
在本发明实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本发明实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本发明实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意 通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及未来的5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本发明实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本发明实施例中，术语“用户设备”(UE，User Equipment)或者“终端设备”(TE，Terminal Equipment)例如是指通过网络设备接入通信网络并接收网络服务的设备。用户设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，用户设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，用户设备还可以是进行 监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
在本实施例中，随机接入过程可以是基于竞争的随机接入过程(Contention based random access procedure)，也可以是基于非竞争的随机接入过程(Non-contention based random access procedure)。其中，根据网络设备是否能唯一标识某一UE的随机接入过程，随机接入过程分为基于竞争的随机接入过程和基于非竞争的随机接入过程。
下面结合附图对本发明实施例进行说明。
实施例1
本发明实施例1提供一种信息传输方法，应用于网络设备侧，例如，可以应用于响应用户设备发起的随机接入过程的装置。
图1是本实施例中该信息传输方法流程图，如图1所示，该方法包括：
步骤101，向用户设备发送符号标识信息，该符号标识信息指示用户设备发送的随机接入前导序列所使用的符号的相关信息。
由上述实施例可知，UE可接收到网络侧返回的符号标识信息，根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，由此解决现有技术中存在的问题。
在本实施例中，UE在发起随机接入过程时，会向网络设备侧发送随机接入前导序列。该随机接入过程可以是基于竞争的随机接入过程也可以是基于非竞争的随机接入过程。
在一个实施方式中，针对基于竞争的随机接入过程，该用户设备选择随机接入前导序列集合中的随机接入前导序列前导、随机接入资源集合中的资源来发送该随机接入前导序列。
在另一个实施方式中，针对基于非竞争的随机接入过程，网络设备可为UE分配专用的随机接入前导序列，和/或随机接入资源(如随机接入信道资源(RACH Resource)，和/或随机接入前导序列格式(Random Access Preamble Format)，UE根据网络侧的分配发送随机接入前导序列。
在本实施例中，UE发送该随机接入前导序列的时域位置可以包括子帧，时隙以 及使用的符号，其中，每个子帧长度等于Xms，由Y个连续的时隙组成，每个时隙由Z个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号组成，其中，X,Y,Z可以参考现有技术，例如其分别等于1,2,7，但本实施例并不以此作为限制。
在本实施例中，该符号标识信息指示用户设备发送随机接入前导序列所使用的符号的相关信息，例如，该相关信息可以是用户设备发送的随机接入前导序列在时域上所占用的符号位置信息，其中，该位置信息可以是符号ID(SymbolID)，也可以是符号位置与预定位置的间隔，还可以是网络配置的发送随机接入前导序列的符号位置的模式(pattern)索引号，但本实施例并不以此作为限制。
在本实施例中，该符号标识信息可以是预定数量A比特的字段，其中，A的值可以根据一个时隙中包含的OFDM符号数量确定，例如，在一个时隙中包含14个OFDM符号时，该符号标识信息是一个4比特的字段，但本实施例并不以此作为限制，一个时隙中包含的OFDM符号变多时，A的数量相应的增加。
在本实施例中，在步骤101前，该方法还可以包括：
步骤100，接收UE发送的随机接入前导序列。
在本实施例中，在随机接入过程中，网络侧在接收到UE发送的随机接入前导序列时，会向UE返回一个随机接入响应消息(Msg.2)，其中，可以通过该随机接入响应消息发送该符号标识信息，但本实施例并不以此作为限制，例如，还可以通过新建消息或现有的其他消息发送该符号标识信息，该新建消息或现有的其他消息可以与随机接入响应消息同时发送，也可以不同时发送，本实施例并不以此作为限制。
在本实施例中，网络侧在接收到UE发送的随机接入前导序列时，可以根据发送该随机接入前导序列的子帧和占用的时隙计算RA-RNTI，并利用该RA-RNTI加扰PDCCH，网络侧通过PDCCH指示Msg.2的下行授权，UE侧可以根据该RA-RNTI解扰PDCCH，以便读取Msg.2，其中RA-RNTI的计算方式以及RA-RNTI加扰、解扰方式可以参考现有技术，此处不再赘述。
在本实施例中，该随机接入响应消息的格式可以参考现有技术，图2是现有技术中随机接入响应消息的格式一示意图，如图2所示，随机接入响应消息中可以包括媒体介入控制层(MAC)子头以及MAC子头对应的至少一个MAC子数据单元(sub PDU)以及填充信息(可选)，其中，不同MAC子数据单元对应不同的UE发送的随 机接入前导序列的响应结果，该随机接入前导序列可以是同一个UE发送的，也可以是不同UE发送的；例如在网络侧确认UE可以进行随机接入时，在MAC子数据单元中包含随机接入响应(RAR)，表示对随机接入请求的确认；其中，MAC子数据单元还可以包括RAPID，以及其他信息，具体参考现有技术，此处不再一一举例。
在本实施例中，该符号标识信息可以包含在该MAC子头或者MAC子头对应的MAC子数据单元。
由上述实施例可知，UE可接收到网络侧返回的符号标识信息，根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，由此解决现有技术中存在的问题。
实施例2
本发明实施例2提供一种信息传输方法，应用于用户设备侧，例如向网络侧发起随机接入过程的装置侧。
图3是本实施例中信息传输方法流程图，如图3所示，该方法包括：
步骤301，接收网络侧发送的符号标识信息，该符号标识信息指示用户设备发送随机接入前导序列所使用的符号的相关信息。
在本实施例中，该符号标识信息的具体含义请参考实施例1，此处不再重复。
在本实施例中，该方法还可以包括：
步骤300，向网络侧发送随机接入前导序列。
在本实施例中，在该UE发送随机接入前导序列后，网络侧根据该随机接入前导序列向UE返回随机接入响应消息，其中，可以在该随机接入响应消息中包括该符号标识信息。其中，该随机接入响应消息的格式可以参考实施例1，该随机接入前导序列的格式以及发送该随机接入前导序列的资源可以参考现有技术，此处不再赘述。
在本实施例中，该方法还可包括步骤(未图示)：监听该随机接入响应消息，通过该监听过程来接收该随机接入响应消息；其中，监听期间可由网络侧预先配置，可为RAR时间窗(RAR window)，例如该时间窗可以是从UE发送随机接入前导序列的子帧+3个子帧开始，长度为P个子帧，P是正整数。
在本实施例中，UE可以根据发送该随机接入前导序列的子帧和占用的时隙或其他信息计算RA-RNTI，并利用该RA-RNTI解扰PDCCH，在解扰成功时，在物理下 行共享信道(Physical Downlink Shared Channel，PDSCH)读取网络侧发送的随机接入响应消息，根据该随机接入响应消息中包含的符号标识信息区分该随机接入响应消息中发送的随机接入响应是否是发送给该UE本身。
在本实施例中，该方法还可以包括：
步骤302，利用该符号标识信息判断网络侧发送的随机接入响应消息中包含的随机接入响应数据是否成功接收。
其中，该随机接入响应数据即随机接入响应RAR，其用于表示网络侧确认UE可以进行后续的随机接入过程，另外，该随机接入响应数据成功接收也表示该随机接入响应数据是发送给该UE本身，而不是发送给其他UE的。
在步骤302的一个实施方式中，UE判断该符号标识信息指示的符号位置是否与该用户设备发送的随机接入前导序列在时域上所占用的符号位置相符；在判断结果为相符时，确定该随机接入响应消息中包含的随机接入响应数据成功接收，其中，相符可以表示对应或相同。
例如，该符号标识信息指示的符号的相关信息是符号ID时，UE将该符号ID与其在步骤300中发送的随机接入前导序列在时域上所占用的符号ID进行比较，在一致时，表示该随机接入响应数据是发送给该UE本身，即随机接入响应数据成功接收。
例如，该符号标识信息指示的符号的相关信息是网络配置的发送随机接入前导序列的符号位置的模式(pattern)索引号时，UE将该索引号与其在步骤300中发送的随机接入前导序列在时域上所占用的符号进行比较，在对应时，表示该随机接入响应数据是发送给该UE本身，即随机接入响应数据成功接收。
在步骤302的一个实施方式中，UE判断该符号标识信息指示的符号位置是否与该用户设备发送的随机接入前导序列在时域上所占用的符号位置相符；另外，判断该随机接入响应消息中包含的随机接入前导序列标识是否与该用户设备发送的随机接入前导序列标识相符；在判断结果均为相符时，确定该随机接入响应消息中包含的随机接入响应数据成功接收，其中，相符可以表示对应或相同。
在该实施方式中，该随机接入响应消息中可以同时包含符号标识信息和随机接入前导序列标识(RAPID)，例如，该符号标识信息指示的符号的相关信息是符号ID时，UE将该符号ID与其在步骤300中发送的随机接入前导序列在时域上所占用的符号ID进行比较，另外，将该随机接入响应消息中包含的RAPID与步骤300中发送的随 机接入前导序列标识进行比较，在二者均一致时，表示该随机接入响应数据是发送给该UE本身，即随机接入响应数据成功接收。
例如，该符号标识信息指示的符号的相关信息是网络配置的发送随机接入前导序列的符号位置的模式(pattern)索引号时，UE将该索引号与其在步骤300中发送的随机接入前导序列在时域上所占用的符号进行比较，另外，将该随机接入响应消息中包含的RAPID与步骤300中发送的随机接入前导序列标识进行比较，在二者均对应时，表示该随机接入响应数据是发送给该UE本身，即随机接入响应数据成功接收。
由上述实施例可知，UE可接收到网络侧返回的符号标识信息，根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，由此解决现有技术中存在的问题。
实施例3
本发明实施例3提供一种随机接入方法，图4是本发明实施例3的随机接入方法流程图。如图4所示，该方法包括：
步骤401，UE向网络侧发送随机接入前导序列(Msg.1)；
步骤402，网络侧接收到至少一个随机接入前导序列，并向UE返回随机接入响应消息(Msg.2)；
其中，该随机接入响应中包含符号标识信息，该符号标识信息指示用户设备发送随机接入前导序列所使用的符号的相关信息。
其具体发送方法可以参考实施例1，此处不再赘述。
步骤403，该UE接收网络侧返回的随机接入响应消息；根据接收的随机接入响应消息中包含的符号标识信息，或RAPID和符号标识信息判断随机接入响应消息中的RAR是否成功接收，具体的判断方法如实施例2所述，此处不再赘述。
其中，该UE可通过监听来接收该网络侧返回的随机接入响应消息，其中可在预先配置的时间窗内进行监听，在进行监听时，该UE可根据发送该随机接入前导序列的子帧和占用的时隙计算RA-RNTI，并利用该RA-RNTI解扰PDCCH，在成功解扰时，可接收网络侧返回的随机接入响应消息。
步骤404，在成功接收时，UE在RAR中指定的资源上向该网络侧发送上行消息(Msg.3)；该上行消息中包含UE标识；例如，该Msg.3可以是无线资源控制连接请 求(RRC connection request)。
步骤405，该网络侧接收到该上行消息，根据其中包含的UE标识向随机接入成功的UE返回冲突解决消息(Msg.4)。
在本实施例中，在该随机接入是非竞争随机接入时，在步骤401之前，该方法还可包括步骤(未示出)：网络侧向UE发送的指示信息，该指示消息用于指示随机接入过程使用的随机接入前导序列的时频位置和使用的接入资源，其具体实施方式可以参考现有技术，此处不再重复。
在本实施例中，该UE发起随机接入过程，该随机接入过程可以是基于竞争的随机接入过程也可以是基于非竞争的随机接入过程，本实施例并不以此作为限制。
由上述实施例可知，UE可接收到网络侧返回的符号标识信息，根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，由此解决现有技术中存在的问题。
在LTE系统中，随机接入响应消息包括两种数据类型，即随机退避时间指示和正常的随机接入响应。
在未来无线通信系统，例如5G、新无线(NR，New Radio)系统中，随机接入响应消息中引入了新的数据类型，即按需系统信息请求的确认，目前，UE还没有有效的方法区分接收到的随机接入响应消息是否是该新的数据类型，即按需系统信息请求(On-demand system information request)的确认。
为此，本实施例提出一种随机接入方法、装置以及通信系统，通过在随机接入响应消息中包含数据类型指示信息，用于显示的指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题。
另外，本实施例提出一种随机接入方法、装置以及通信系统，通过在随机接入响应消息中包含的RAPID，隐式的指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题。
下面结合附图对分别对上述两种方法进行说明。
实施例4
本发明实施例4提供一种随机接入方法，应用于网络设备侧，例如，可以应用于 响应用户设备发起的随机接入过程的装置。
图5是本实施例中随机接入方法流程图，如图5所示，该方法包括：
步骤501，向用户设备发送随机接入响应消息，该随机接入响应消息中包含数据类型指示信息，该数据类型指示信息指示MAC子头或其对应的MAC子数据单元的数据格式和/或用途，其中，该数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，该用途包括用于指示按需系统信息请求的确认的第一用途。
在本实施例中，该随机接入响应消息中可以包括媒体介入控制层(MAC)子头以及MAC子头对应的至少一个MAC子数据单元(sub PDU)以及填充信息(可选)，其中，不同MAC子数据单元对应不同的UE发送的随机接入前导序列的响应结果，该随机接入前导序列可以是同一个UE发送的，也可以是不同UE发送的；不同的MAC子头或其对应的MAC子数据单元的数据格式或用途可以相同，也可以不同。
在本实施例中，该第一用途与该第一数据格式对应，在MAC子头或其对应的MAC子数据单元的用途是第一用途，即用于指示按需系统信息请求的确认时，该MAC子头或其对应的MAC子数据单元的数据格式即为第一数据格式，即包含前导序列标识但不包含其对应的随机接入响应数据(即仅包含RAPID)。其中，按需系统信息请求也可以表示为其他系统信息请求，例如，该其他系统信息可以是用于端到端通信的配置的系统信息，但本实施例并不以此作为限制。
在本实施例中，该数据格式还包括随机退避指示信息的第二数据格式，和/或至少包含前导序列标识和其对应的随机接入响应数据的第三数据格式；该用途还包括用于指示随机退避时间的第二用途，和/或用于指示正常随机接入响应的第三用途。
其中，该第二用途与该第二数据格式对应，在MAC子头或其对应的MAC子数据单元的用途是第二用途，即用于指示随机退避时间时，该MAC子头或其对应的MAC子数据单元的数据格式即为第二数据格式，即包含随机退避指示信息(backoff indicator，BI)。其中，该BI用于指示UE重传随机接入前导序列的等待时间范围，其具体指示方式与现有技术相同。
其中，该第三用途与该第三数据格式对应，在MAC子头或其对应的MAC子数据单元的用途是第三用途，即用于指示正常随机接入响应时，该MAC子头或其对应的MAC子数据单元的数据格式即为第三数据格式，即包含至少包含前导序列标识和 其对应的随机接入响应数据(即RAPID+RAR)。其中，该BI用于指示UE重传随机接入前导序列的等待时间范围，其具体指示方式与现有技术相同。
在本实施例中，仅示例性的说明了三种用途或数据格式，但本实施例并不以此作为限制，该数据类型指示信息还可以用于指示其他用途或数据格式，例如数据格式是RAPID+SymbolID+RAR或RAPID+SymbolID。
在本实施例中，可以在该随机接入响应消息的MAC子头或者MAC子头对应的MAC子数据单元中包含该数据类型指示信息，该数据类型指示信息可以是预定数量比特的字段。其中，该预定数量可以根据数据类型的数据格式或用途的数量确定。
例如，在当前支持的MAC子头或者MAC子头对应的MAC子数据单元的用途仅为两种，例如第一用途和第二用途，或第一用途和第三用途时，该数据类型指示信息是一个1比特的字段，其中该比特是0是表示第一用途，1表示第二用途或第三用途，反之亦然。
例如，在当前支持的MAC子头或者MAC子头对应的MAC子数据单元的用途为三种，例如第一用途、第二用途和第三用途时，该数据类型指示信息是一个2比特的字段，其中00表示第一用途，01表示第二用途，10表示第三用途，但本实施例并不以此作为限制。
例如，在当前支持的MAC子头或者MAC子头对应的MAC子数据单元的数据格式仅为两种，例如第一数据格式和第二数据格式，或第一数据格式和第三数据格式时，该数据类型指示信息是一个1比特的字段，其中该比特是0是表示第一数据格式，1表示第二数据格式或第三数据格式，反之亦然。
例如，在当前支持的MAC子头或者MAC子头对应的MAC子数据单元的数据格式为三种，例如第一数据格式、第二数据格式和第三数据格式时，该数据类型指示信息是一个2比特的字段，其中00表示第一数据格式，01表示第二数据格式，10表示第三数据格式，但本实施例并不以此作为限制。
在本实施例中，可以用MAC子头或者MAC子头对应的MAC子数据单元中的剩余比特，例如扩展字段或扩展字段+其他字段来表示该数据类型指示信息，但本实施例并不以此作为限制。
图6和图7是本实施例中该随机接入响应的格式示意图，如图6所示，该数据类型指示信息是一个2比特的字段，其中00表示第一数据格式，01表示第二数据格式， 10表示第三数据格式；如图7所示，该数据类型指示信息是一个1比特的字段，其中0表示第一数据格式，1表示第三数据格式。
由上述实施例可知，通过在随机接入响应消息中包含数据类型指示信息，用于指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题。
实施例5
本发明实施例5提供一种随机接入方法，应用于用户设备侧，例如，可以应用于发起的随机接入过程的装置侧。
图8是本实施例中随机接入方法流程图，如图8所示，该方法包括：
步骤801，接收随机接入响应消息，该随机接入响应消息中包含数据类型指示信息，该数据类型指示信息指示MAC子头或其对应的MAC子数据单元的数据格式和/或用途，其中，该数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，该用途包括用于指示按需系统信息请求的确认的第一用途。
在本实施例中，该随机接入响应消息的格式可以参考实施例4，该数据类型指示信息的实施方式可以参考实施例4，其重复之处不再赘述。
在本实施例中，UE成功解扰PDCCH后，可以接收该随机接入响应消息，该UE依次读取随机接入响应消息中的每个MAC子头或其对应的MAC子数据单元，根据MAC子头或其对应的MAC子数据单元中的数据类型指示信息确定该MAC子头或其对应的MAC子数据单元的数据格式或用途。
例如，UE在读取到当前MAC子头或其对应的MAC子数据单元中的用途是第一用途时，确定该MAC子头或其对应的MAC子数据单元用于指示按需系统信息请求的确认，其数据格式为第一数据格式，仅包括RAPID，UE根据该信息可以获知其之前发起的按需系统信息请求得到了网络侧的确认，该按需系统信息请求的确认可以看作是对请求的应答(ACK)消息。
例如，UE在读取到当前MAC子头或其对应的MAC子数据单元中的用途是第二用途时，确定该MAC子头或其对应的MAC子数据单元用于指示随机退避时间，其数据格式为第二数据格式，包括BI，UE会保存该BI，在随后需要重新做随机接入时，可以从0～BI的值中选择一个值作为推迟发送随机接入前导序列的时间。
例如，UE在读取到当前MAC子头或其对应的MAC子数据单元中的用途是第三用途时，确定该MAC子头或其对应的MAC子数据单元用于正常随机接入响应，其数据格式为第三数据格式，包括RAPID+RAR，进一步可以根据RAPID以及其他信息，例如实施例1中的符号标识信息确定该RAR是否是发送给该UE的。
由上述实施例可知，通过在随机接入响应消息中包含数据类型指示信息，用于指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题。
实施例6
本发明实施例6提供一种随机接入方法，应用于用户设备侧，例如，可以应用于发起的随机接入过程的装置侧。
图9是本实施例中随机接入方法流程图，如图9所示，该方法包括：
步骤901，接收随机接入响应消息；
步骤902，在该随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且该随机接入前导序列标识属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示按需系统信息请求的确认；或者，在该随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且该随机接入前导序列标识不属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示正常随机接入响应。
在本实施例中，该随机接入响应消息的格式可以参考现有技术，图2是现有技术中随机接入响应消息的格式一示意图，如图2所示，随机接入响应消息中可以包括媒体介入控制层(MAC)子头以及MAC子头对应的至少一个MAC子数据单元(sub PDU)以及填充信息(可选)，其中，不同MAC子数据单元对应不同的UE发送的随机接入前导序列的响应结果，该随机接入前导序列可以是同一个UE发送的，也可以是不同UE发送的；例如在网络侧确认UE可以进行随机接入时，在MAC子数据单元中包含随机接入响应(RAR)，表示对随机接入请求的确认；其中，MAC子数据单元还可以包括RAPID，以及其他信息，例如符号标识信息，或BI，此处不再一一举 例。
其中，步骤901中具体接收该随机接入响应消息的方法可以参考现有技术，例如UE监听PDCCH，根据RA-RNTI解扰PDCCH，并接收该随机接入响应消息，此处不再赘述。
在步骤902中，依次读取随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元，在MAC子头或者MAC子头对应的MAC子数据单元中包括RAPID时，将该RAPID与用于按需系统信息请求的随机接入前导序列的序列标识集合中的序列标识进行比较，在该集合中包含序号为RAPID的标识时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示按需系统信息请求的确认；UE可以获知其之前发起的按需系统信息请求得到了网络侧的确认，该按需系统信息请求的确认可以看作是对请求的应答(ACK)消息。
其中，在该集合中不包含序号为RAPID的标识时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示正常随机接入响应，进一步可以根据RAPID以及其他信息，例如实施例1中的符号标识信息确定该MAC子头或者MAC子头对应的MAC子数据单元中包含的RAR是否是发送给该UE的。
在本实施例中，在步骤901前，该方法还包括(未图示)：UE获取预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合。
其中，该用于按需系统信息请求的随机接入前导序列的序列标识集合可以是网络侧预先配置好之后通知UE的，也可以是网络预定义的。
例如，预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合是{0,3,6,9,12,15}，UE依次读取随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元，在其中包括RAPID时，确定该RAPID是否等于0,3,6,9,12,15中的一个，例如，在RAPID＝3时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示按需系统信息请求的确认；例如，在RAPID＝2时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于正常随机接入响应。
由上述实施例可知，在随机接入响应消息中包含的RAPID，隐式的指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题，另外，节约比特信息。
在LTE系统中，在随机接入响应消息中的MAC子头对应的MAC subPDU中设置有扩展字段(E)，其用于指示该MAC子头后是否还有其他的MAC子头，或者该MAC subPDU后是否还有其他的MAC subPDU。
在未来无线通信系统，例如5G、新无线(NR，New Radio)系统中，随机接入响应消息中引入了新的数据类型，即按需系统信息请求的确认，或者随机接入响应消息中需要携带更多的指示信息时，可能需要占用该扩展字段指示新的数据类型或者其他信息，因此，该扩展字段无法用于指示该MAC subPDU后是否还有其他的MAC subPDU。则UE在接收到随机接入响应消息后读取MAC subPDU时，无法获知该MAC subPDU后是否还有其他的MAC subPDU需要读取。
为此，本实施例提出一种随机接入方法、装置以及通信系统，将包含随机退避指示的MAC子头或其对应的MAC subPDU放置于所有MAC子头或其对应的MAC subPDU中的最后一个，UE读取到包含随机退避指示的MAC子头或其对应的MAC subPDU时，即确认之后没有MAC子头或其对应的MAC subPDU，从而能够结束读取操作，解决了现有技术中存在的问题。
下面结合附图对对上述方法进行说明。
实施例7
本发明实施例7提供一种随机接入方法，应用于网络设备侧，例如，可以应用于响应用户设备发起的随机接入过程的装置。
图10是本实施例中随机接入方法流程图，如图10所示，该方法包括：
步骤1001，发送随机接入响应消息，其中，该随机接入响应消息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
在本实施例中，该随机接入响应消息中可以包括媒体介入控制层(MAC)子头以及MAC子头对应的至少一个MAC子数据单元(subPDU)以及填充信息(可选)，其中，不同的MAC子头或其对应的MAC子数据单元的数据格式可以相同，也可以不同，例如该数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据 (仅RAPID)的第一数据格式，至少包含前导序列标识和其对应的随机接入响应数据(RAPID+RAR)的第二数据格式，和/或随机退避指示信息(BI)的第三数据格式，但本实施例并不以此作为限制。
其中，一个随机接入响应消息可以包含一个或多个第一数据格式或第二数据格式的MAC子头或其对应的MAC子数据单元，但一个随机接入响应消息包含最多一个第三数据格式的MAC子头或其对应的MAC子数据单元。
在本实施例中，在该随机接入响应消息中，该第三数据格式的MAC子头或其对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个，根据该第三数据格式的MAC子头或其对应的MAC子数据单元可以隐式的指示该第三数据格式的MAC子头或其对应的MAC子数据单元后没有其他MAC子头或其对应的MAC子数据单元。
图11是本实施例中该随机接入响应消息格式示意图，如图11所示，该包含BI的MAC subPDU在所有MAC subPDU的最后，其后没有其他MAC子头或其对应的MAC subPDU。
由上述实施例可知，UE读取到包含随机退避指示的MAC子头或其对应的MAC subPDU时，即确认之后没有MAC子头或其对应的MAC subPDU，从而能够结束读取操作，解决了现有技术中存在的问题。
实施例8
本发明实施例8提供一种随机接入方法，应用于用户设备侧，例如，可以应用于发起的随机接入过程的装置侧。
图12是本实施例中随机接入方法流程图，如图12所示，该方法包括：
步骤1201，接收随机接入响应消息，其中，该随机接入响应消息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
在本实施例中，该随机接入响应消息的格式具体可以参考实施例7，此处不再赘述。
其中，该方法还可以包括：
步骤1202，依次读取随机接入响应消息中包括的多个MAC子头或者MAC子头对应的MAC子数据单元，在读取到包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元时，确定随机接入响应消息读取结束。
在本实施例中，该MAC子头或者MAC子头对应的MAC子数据单元中可以包含用于指示MAC子头或者MAC子头对应的MAC子数据单元数据格式的数据类型指示信息，其具体实施方式可以参考实施例4，此处不再重复。
在本实施例中，UE根据该数据类型指示信息确定MAC子头或者MAC子头对应的MAC子数据单元的数据格式是第一数据格式、第二数据格式、还是第三数据格式，需要说明的是，本实施例并不限制于上述三种数据格式。
其中，在根据数据类型指示信息确定确定MAC子头或者MAC子头对应的MAC子数据单元的数据格式是第一数据格式、第二数据格式时，UE还要继续读取该MAC子头或者MAC子头对应的MAC子数据单元之后的MAC子头或者MAC子头对应的MAC子数据单元。
其中，在根据数据类型指示信息确定确定MAC子头或者MAC子头对应的MAC子数据单元的数据格式是第三数据格式时，UE确定该MAC子头或者MAC子头对应的MAC子数据单元后没有MAC子头或者MAC子头对应的MAC子数据单元，即随机接入响应消息读取结束。
由上述实施例可知，UE读取到包含随机退避指示的MAC子头或其对应的MAC subPDU时，即确认之后没有MAC子头或其对应的MAC subPDU，从而能够结束读取操作，解决了现有技术中存在的问题。
实施例9
本实施例9提供了一种信息传输装置，由于该装置解决问题的原理与实施例1的方法类似，因此其具体的实施可以参考实施例1的方法的实施，内容相同之处不再重复说明。
图13是本发明实施例9的信息传输装置示意图；如图13所示，该装置1300包括：
第一发送单元1301，其用于向用户设备发送符号标识信息，该符号标识信息指示用户设备发送的随机接入前导序列所使用的符号的相关信息。
在本实施例中，该第一发送单元1301的实施方式可以参考实施例1中步骤101，此处不再赘述。
在本实施例中，该符号标识信息的含义和承载方式如实施例1所述，例如通过随机接入响应消息中发送该符号标识信息。其中，该符号标识信息包含在随机接入响应消息的媒体介入控制层(MAC)子头或者MAC子头对应的MAC子数据单元中。其中，该符号的相关信息是该用户设备发送的随机接入前导序列在时域上所占用的符号位置信息。其中，该符号标识信息是一个至少4比特的字段。
由上述实施例可知，UE可接收到网络侧返回的符号标识信息，根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，由此解决现有技术中存在的问题。
实施例10
本实施例10提供了一种网络设备，由于该设备解决问题的原理于实施例1的方法类似，因此其具体的实施可以参考实施例1的方法实施，内容相同之处不再重复说明。
在本实施例中还提供一种网络设备(未图示)，该网络设备配置有如前所述的数据指示装置1300。
本实施例10还提供了一种网络设备，由于该设备解决问题的原理于实施例1的方法类似，因此其具体的实施可以参考实施例1的方法实施，内容相同之处不再重复说明。图14是该网络设备的构成示意图；如图14所示，网络设备1400可以包括：中央处理器(CPU)1401和存储器1402；存储器1402耦合到中央处理器1401。其中该存储器1402可存储各种数据；此外还存储数据处理的程序，并且在中央处理器1401的控制下执行该程序，以发送相关信息。
在一个实施方式中，装置1300的功能可以被集成到中央处理器1401中。其中，中央处理器1401可以被配置为实现实施例1所述的信息传输方法。
例如，中央处理器1401可以被配置为：向用户设备发送符号标识信息，该符号标识信息指示用户设备发送的随机接入前导序列所使用的符号的相关信息。
在本实施例中，该符号标识信息的含义和承载方式如实施例1所述，例如通过该随机接入响应消息中发送该符号标识信息。其中，该符号标识信息包含在随机接入响 应消息的媒体介入控制层(MAC)子头或者MAC子头对应的MAC子数据单元中。其中，该符号的相关信息是该用户设备发送的随机接入前导序列在时域上所占用的符号位置信息。其中，该符号标识信息是一个至少4比特的字段。
另外，该中央处理器1401的具体配置方式可以参考实施例1，此处不再赘述。
在另一个实施方式中，上述装置1300可以与中央处理器1401分开配置，例如，可以将装置1300配置为与中央处理器1401连接的芯片，如图14所示的单元，通过中央处理器1401的控制来实现装置1300的功能。
此外，如图14所示，网络设备1400还可以包括：收发机1403和天线1404等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备1400也并不是必须要包括图14中所示的所有部件；此外，网络设备1400还可以包括图14中没有示出的部件，可以参考现有技术。
由上述实施例可知，UE可接收到网络侧返回的符号标识信息，根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，由此解决现有技术中存在的问题。
实施例11
本实施例11还提供一种信息传输装置，由于该装置解决问题的原理与实施例2的方法类似，因此其具体的实施可以参考实施例2的方法的实施，内容相同之处不再重复说明。
图15是本发明实施例11的信息传输装置示意图；如图15所示，该装置1500包括：
第一接收单元1501，其用于接收网络侧发送的符号标识信息，该符号标识信息指示用户设备发送随机接入前导序列所使用的符号的相关信息。
在本实施例中，该第一接收单元1501的具体实施方式可以参考实施例2步骤301，此处不再赘述，该符号标识信息的具体含义可以参考实施例1，此处不再赘述。
其中，该第一接收单元1501读取网络侧发送的随机接入响应消息以接收该符号标识信息；该装置还包括：
判断单元1502，其用于利用该符号标识信息判断网络侧发送的随机接入响应消息中包含的随机接入响应数据是否成功接收。
其中，该符号的相关信息是该用户设备发送的随机接入前导序列在时域上所占用的符号位置信息。
图16是该判断单元1502一实施方式示意图，如图16所示，该判断单元包括：
第一判断模块1601，其用于判断该符号标识信息指示的符号位置是否与该用户设备发送的随机接入前导序列在时域上所占用的符号位置相符；和/或，
第二判断模块1602，其用于判断该随机接入响应消息中包含的随机接入前导序列标识是否与该用户设备发送的随机接入前导序列标识相符；
其中，该判断单元1502还可以包括：
确定模块1603，其用于在该第一判断模块判断结果为相符时，确定该随机接入响应消息中包含的随机接入响应数据成功接收；或者，
该确定模块1603在该第一判断模块1601判断结果为相符，且该第二判断模块1602判断结果为相符时，确定该随机接入响应消息中包含的随机接入响应数据成功接收。
在本实施例中，该判断单元1502的具体实施方式可以参考实施例2步骤302，此处不再赘述
由上述实施例可知，UE可接收到网络侧返回的符号标识信息，根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，由此解决现有技术中存在的问题。
实施例12
本实施例还提供一种用户设备，由于该设备解决问题的原理于实施例2的方法类似，因此其具体的实施可以参考实施例2的方法实施，内容相同之处不再重复说明。
在本实施例中还提供一种用户设备(未图示)，该用户设备配置有如前所述的信息传输装置1500。
本实施例还提供一种用户设备，图17是本发明实施例12的用户设备的构成示意图；如图17所示，用户设备1700可以包括：中央处理器(CPU)1701和存储器1702；存储器1702耦合到中央处理器1701。其中该存储器1702可存储各种数据；此外还存储数据处理的程序，并且在中央处理器1701的控制下执行该程序，以进行信息传输入。
在一个实施方式中，装置1500的功能可以被集成到中央处理器1701中。其中，中央处理器1701可以被配置为实现实施例2所述的信息传输方法。
例如，中央处理器1701可以被配置为：接收网络侧发送的符号标识信息，该符号标识信息指示用户设备发送随机接入前导序列所使用的符号的相关信息。
例如，中央处理器1701可以被配置为：读取网络侧发送的随机接入响应消息以接收该符号标识信息；利用该符号标识信息判断网络侧发送的随机接入响应消息中包含的随机接入响应数据是否成功接收。
其中，该符号的相关信息是该用户设备发送的随机接入前导序列在时域上所占用的符号位置信息；
例如，中央处理器1701可以被配置为：判断该符号标识信息指示的符号位置是否与该用户设备发送的随机接入前导序列在时域上所占用的符号位置相符；或者判断该符号标识信息指示的符号位置是否与该用户设备发送的随机接入前导序列在时域上所占用的符号位置相符以及判断该随机接入响应消息中包含的随机接入前导序列标识是否与该用户设备发送的随机接入前导序列标识相符。
其中，该中央处理器1701可以被配置为，在该判断结果为相符时，确定该随机接入响应消息中包含的随机接入响应数据成功接收。
另外，该中央处理器1701的其他配置方式可以参考实施例2，此处不再赘述。
在另一个实施方式中，上述装置1300可以与中央处理器1701分开配置，例如，可以将装置1500配置为与中央处理器1701连接的芯片，如图17所示的信息传输单元，通过中央处理器1701的控制来实现装置1500的功能。
此外，如图17所示，用户设备1700还可以包括：通信模块1703、输入单元1704、显示器1706、音频处理器1705、天线1707和电源1708等。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，用户设备1700也并不是必须要包括图17中所示的所有部件；此外，用户设备1700还可以包括图17中没有示出的部件，可以参考现有技术。
由上述实施例可知，UE可接收到网络侧返回的符号标识信息，根据该符号标识信息区分随机接入响应消息中发送的随机接入响应，由此解决现有技术中存在的问题。
实施例13
本实施例13还提供一种随机接入装置。由于该装置解决问题的原理与实施例4的方法类似，因此其具体的实施可以参考实施例4的方法的实施，内容相同之处不再重复说明。
图18是本发明实施例13的随机接入装置示意图；如图18所示，该装置1800包括：
第二发送单元1801，其用于向用户设备发送随机接入响应消息，所述随机接入响应消息中包含数据类型指示信息，所述数据类型指示信息指示MAC子头或MAC子数据单元的数据格式和/或用途，其中，所述数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，所述用途包括用于指示按需系统信息请求的确认的第一用途。
在本实施例中，该第二发送单元1801的具体实施方式可以参考实施例4中步骤501，此处不再赘述。
在本实施例中，该数据类型指示信息的含义可以参考实施例4，此处不再赘述。
例如，在该随机接入响应消息的MAC子头或者MAC子头对应的MAC子数据单元中包含数据类型指示信息。
其中，该数据格式还包括随机退避指示信息的第二数据格式，和/或至少包含前导序列标识和其对应的随机接入响应数据的第三数据格式。该用途还包括用于指示随机退避时间的第二用途，和/或用于指示正常随机接入响应的第三用途。
其中，该数据类型指示信息是一个1或2比特的字段。
由上述实施例可知，通过在随机接入响应消息中包含数据类型指示信息，用于指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题。
实施例14
本实施例14提供了一种网络设备，由于该设备解决问题的原理于实施例4的方法类似，因此其具体的实施可以参考实施例4的方法实施，内容相同之处不再重复说明。
在本实施例中还提供一种网络设备(未图示)，该网络设备配置有如前所述的随机接入装置1800。
本实施例14还提供了一种网络设备，由于该设备解决问题的原理于实施例4的方法类似，因此其具体的实施可以参考实施例4的方法实施，内容相同之处不再重复说明。图19是该网络设备构成示意图。如图19所示，网络设备1900可以包括：中央处理器(CPU)1901和存储器1902；存储器1902耦合到中央处理器1901。其中该存储器1902可存储各种数据；此外还存储数据处理的程序，并且在中央处理器1901的控制下执行该程序，以发送相关信息。
在一个实施方式中，装置1800的功能可以被集成到中央处理器1901中。其中，中央处理器1901可以被配置为实现实施例4所述的随机接入方法。
例如，中央处理器1901可以被配置为：向用户设备发送随机接入响应消息，所述随机接入响应消息中包含数据类型指示信息，所述数据类型指示信息指示MAC子头或MAC子数据单元的数据格式和/或用途，其中，所述数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，所述用途包括用于指示按需系统信息请求的确认的第一用途。
在本实施例中，该数据类型指示信息的含义可以参考实施例4，此处不再赘述。
例如，在该随机接入响应消息的MAC子头或者MAC子头对应的MAC子数据单元中包含数据类型指示信息。
其中，该数据格式还包括随机退避指示信息的第二数据格式，和/或至少包含前导序列标识和其对应的随机接入响应数据的第三数据格式。该用途还包括用于指示随机退避时间的第二用途，和/或用于指示正常随机接入响应的第三用途。
其中，该数据类型指示信息是一个1或2比特的字段。
另外，该中央处理器1901的具体配置方式可以参考实施例4，此处不再赘述。
在另一个实施方式中，上述装置1800可以与中央处理器1901分开配置，例如，可以将装置1800配置为与中央处理器1901连接的芯片，如图19所示的单元，通过中央处理器1901的控制来实现装置1800的功能。
此外，如图19所示，网络设备1900还可以包括：收发机1903和天线1904等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备1900也并不是必须要包括图19中所示的所有部件；此外，网络设备1900还可以包 括图19中没有示出的部件，可以参考现有技术。
由上述实施例可知，通过在随机接入响应消息中包含数据类型指示信息，用于指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题。
实施例15
本实施例15还提供一种随机接入装置，由于该装置解决问题的原理与实施例5的方法类似，因此其具体的实施可以参考实施例5的方法的实施，内容相同之处不再重复说明。
图20是本发明实施例15的随机接入装置示意图，如图20所示，该装置2000包括：
第二接收单元2001，其用于接收随机接入响应消息，所述随机接入响应消息中包含数据类型指示信息，所述数据类型指示信息指示MAC子数据单元的数据格式和/或用途，其中，所述数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，所述用途包括用于指示按需系统信息请求的确认的第一用途。
其中，该第二接收单元2001的实施方式可以参考实施例5步骤801，此处不再赘述。
例如，在该随机接入响应消息的MAC子头或者MAC子头对应的MAC子数据单元中包含数据类型指示信息。
其中，该数据格式还包括随机退避指示信息的第二数据格式，和/或至少包含前导序列标识和其对应的随机接入响应数据的第三数据格式。该用途还包括用于指示随机退避时间的第二用途，和/或用于指示正常随机接入响应的第三用途。
其中，该数据类型指示信息是一个1或2比特的字段。
由上述实施例可知，通过在随机接入响应消息中包含数据类型指示信息，用于指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题。
实施例16
本实施例还提供一种用户设备，由于该设备解决问题的原理于实施例5的方法类似，因此其具体的实施可以参考实施例5的方法实施，内容相同之处不再重复说明。
在本实施例中还提供一种用户设备(未图示)，该用户设备配置有如前所述的随机接入装置2000。
本实施例还提供一种用户设备，图21是本发明实施例16的用户设备的构成示意图；如图21所示，用户设备2100可以包括：中央处理器(CPU)2101和存储器2102；存储器2102耦合到中央处理器2101。其中该存储器2102可存储各种数据；此外还存储数据处理的程序，并且在中央处理器2101的控制下执行该程序，以进行随机接入。
在一个实施方式中，装置2000的功能可以被集成到中央处理器2101中。其中，中央处理器2101可以被配置为实现实施例5所述的随机接入方法。
例如，中央处理器2101可以被配置为：接收随机接入响应消息，所述随机接入响应消息中包含数据类型指示信息，所述数据类型指示信息指示MAC子数据单元的数据格式和/或用途，其中，所述数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，所述用途包括用于指示按需系统信息请求的确认的第一用途。
例如，在该随机接入响应消息的MAC子头或者MAC子头对应的MAC子数据单元中包含数据类型指示信息。
其中，该数据格式还包括随机退避指示信息的第二数据格式，和/或至少包含前导序列标识和其对应的随机接入响应数据的第三数据格式。该用途还包括用于指示随机退避时间的第二用途，和/或用于指示正常随机接入响应的第三用途。
其中，该数据类型指示信息是一个1或2比特的字段。
另外，该中央处理器2101的其他配置方式可以参考实施例5，此处不再赘述。
在另一个实施方式中，上述装置2000可以与中央处理器2101分开配置，例如，可以将装置2000配置为与中央处理器2101连接的芯片，如图21所示的随机接入单元，通过中央处理器2101的控制来实现装置2000的功能。
此外，如图21所示，用户设备2100还可以包括：通信模块2103、输入单元2104、显示器2106、音频处理器2105、天线2107和电源2108等。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，用户设备2100也并不是必须要包 括图21中所示的所有部件；此外，用户设备2100还可以包括图21中没有示出的部件，可以参考现有技术。
由上述实施例可知，通过在随机接入响应消息中包含数据类型指示信息，用于指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题。
实施例17
本实施例17还提供一种随机接入装置，由于该装置解决问题的原理与实施例6的方法类似，因此其具体的实施可以参考实施例6的方法的实施，内容相同之处不再重复说明。
图22是本发明实施例17的随机接入装置示意图；如图16所示，该装置2200包括：
第三接收单元2201，其用于接收随机接入响应消息；
第一确定单元2202，其用于在该随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且该随机接入前导序列标识属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示按需系统信息请求的确认；或者，在该随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且该随机接入前导序列标识不属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示正常随机接入响应。
在本实施例中，该第三接收单元2201，第一确定单元2202的具体实施方式可以参考实施例6步骤901-902，此处不再赘述。
由上述实施例可知，在随机接入响应消息中包含的RAPID，隐式的指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题，另外，节约比特信息。
实施例18
本实施例还提供一种用户设备，由于该设备解决问题的原理于实施例6的方法类似，因此其具体的实施可以参考实施例6的方法实施，内容相同之处不再重复说明。
在本实施例中还提供一种用户设备(未图示)，该用户设备配置有如前所述的随机接入装置2200。
本实施例还提供一种用户设备，图23是本发明实施例18的用户设备的构成示意图；如图23所示，该用户设备2300可以包括：中央处理器(CPU)2301和存储器2302；存储器2302耦合到中央处理器2301。其中该存储器2302可存储各种数据；此外还存储数据处理的程序，并且在中央处理器2301的控制下执行该程序，以进行随机接入。
在一个实施方式中，装置2200的功能可以被集成到中央处理器2301中。其中，中央处理器2301可以被配置为实现实施例6所述的随机接入方法。
例如，中央处理器2301可以被配置为：接收随机接入响应消息；在该随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且该随机接入前导序列标识属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示按需系统信息请求的确认；或者，在该随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且该随机接入前导序列标识不属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定该MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示正常随机接入响应。
另外，该中央处理器2301的其他配置方式可以参考实施例6，此处不再赘述。
在另一个实施方式中，上述装置2200可以与中央处理器2301分开配置，例如，可以将装置2200配置为与中央处理器2301连接的芯片，如图23所示的随机接入单元，通过中央处理器2301的控制来实现装置2200的功能。
此外，如图23所示，用户设备2300还可以包括：通信模块2303、输入单元2304、显示器2306、音频处理器2305、天线2307和电源2308等。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，用户设备2300也并不是必须要包括图23中所示的所有部件；此外，用户设备2300还可以包括图23中没有示出的部件，可以参考现有技术。
由上述实施例可知，在随机接入响应消息中包含的RAPID，隐式的指示随机接入响应消息的数据类型可以用于指示按需系统信息请求的确认，由此，解决了现有技术中存在的问题，另外，节约比特信息。
实施例19
本实施例19还提供一种随机接入装置，由于该装置解决问题的原理与实施例7的方法类似，因此其具体的实施可以参考实施例7的方法的实施，内容相同之处不再重复说明。
图24是本发明实施例19的随机接入装置示意图；如图24所示，该装置2400包括：
第三发送单元2401，其用于发送随机接入响应消息，其中，该随机接入响应消息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
在本实施例中，该随机接入响应消息的格式可以参考实施例7，此处不再赘述。
在本实施例中，该第三发送单元2401的具体实施方式可以参考实施例7步骤1001，此处不再赘述。
由上述实施例可知，UE读取到包含随机退避指示的MAC子头或其对应的MAC subPDU时，即确认之后没有MAC子头或其对应的MAC subPDU，从而能够结束读取操作，解决了现有技术中存在的问题。
实施例20
本实施例20提供了一种网络设备，由于该设备解决问题的原理于实施例20的方法类似，因此其具体的实施可以参考实施例7的方法实施，内容相同之处不再重复说明。
在本实施例中还提供一种网络设备(未图示)，该网络设备配置有如前所述的随机接入装置2400。
本实施例20还提供了一种网络设备，图25是本发明实施例20的网络设备的构成示意图；如图25所示，网络设备2500可以包括：中央处理器(CPU)2501和存 储器2502；存储器2502耦合到中央处理器2501。其中该存储器2502可存储各种数据；此外还存储数据处理的程序，并且在中央处理器2501的控制下执行该程序，以发送相关信息。
在一个实施方式中，装置2400的功能可以被集成到中央处理器2501中。其中，中央处理器2501可以被配置为实现实施例7所述的随机接入方法。
例如，中央处理器2501可以被配置为：发送随机接入响应消息，其中，该随机接入响应消息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
在本实施例中，该随机接入响应消息的格式可以参考实施例7，此处不再赘述。
另外，该中央处理器2501的具体配置方式可以参考实施例7，此处不再赘述。
在另一个实施方式中，上述装置2400可以与中央处理器2501分开配置，例如，可以将装置2400配置为与中央处理器2501连接的芯片，如图25所示的单元，通过中央处理器2501的控制来实现装置2400的功能。
此外，如图25所示，网络设备2500还可以包括：收发机2503和天线2504等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备2500也并不是必须要包括图25中所示的所有部件；此外，网络设备2500还可以包括图25中没有示出的部件，可以参考现有技术。
由上述实施例可知，UE读取到包含随机退避指示的MAC子头或其对应的MAC subPDU时，即确认之后没有MAC子头或其对应的MAC subPDU，从而能够结束读取操作，解决了现有技术中存在的问题。
实施例21
本实施例21还提供一种随机接入装置，由于该装置解决问题的原理与实施例8的方法类似，因此其具体的实施可以参考实施例8的方法的实施，内容相同之处不再重复说明。
图26是本发明实施例21的随机接入装置示意图；如图26所述，该装置2600包括：
第四接收单元2601，其用于接收随机接入响应消息，其中，该随机接入响应消 息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
在本实施例中，该随机接入响应消息的格式可以参考实施例7，此处不再赘述。
在本实施例中，该装置还可以包括：
第二确定单元2602，其用于依次读取随机接入响应消息中包括的多个MAC子头或者MAC子头对应的MAC子数据单元，在读取到包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元时，确定该随机接入响应消息读取结束。
在本实施例中，该第四接收单元2601与第二确定单元2602的具体实施方式可以参考实施例8步骤1201-1202，此处不再赘述。
由上述实施例可知，UE读取到包含随机退避指示的MAC子头或其对应的MAC subPDU时，即确认之后没有MAC子头或其对应的MAC subPDU，从而能够结束读取操作，解决了现有技术中存在的问题。
实施例22
本实施例还提供一种用户设备，由于该设备解决问题的原理于实施例8的方法类似，因此其具体的实施可以参考实施例8的方法实施，内容相同之处不再重复说明。
在本实施例中还提供一种用户设备(未图示)，该用户设备配置有如前所述的随机接入装置2600。
本实施例还提供一种用户设备，图27是本发明实施例22的用户设备的构成示意图；图27是本发明实施例的用户设备的构成示意图。如图27所示，用户设备2700可以包括：中央处理器(CPU)2701和存储器2702；存储器2702耦合到中央处理器2701。其中该存储器2702可存储各种数据；此外还存储数据处理的程序，并且在中央处理器2701的控制下执行该程序，以进行随机接入。
在一个实施方式中，装置2600的功能可以被集成到中央处理器2701中。其中，中央处理器2701可以被配置为实现实施例8所述的随机接入方法。
例如，中央处理器2701可以被配置为：接收随机接入响应消息，其中，所述随机接入响应消息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的 位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
在本实施例中，该随机接入响应消息的格式可以参考实施例7，此处不再赘述。
例如，中央处理器2701可以被配置为：依次读取随机接入响应消息中包括的多个MAC子头或者MAC子头对应的MAC子数据单元，在读取到包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元时，确定所述随机接入响应消息读取结束。
另外，该中央处理器2701的其他配置方式可以参考实施例1，此处不再赘述。
在另一个实施方式中，上述装置2600可以与中央处理器2701分开配置，例如，可以将装置2600配置为与中央处理器2701连接的芯片，如图27所示的随机接入单元，通过中央处理器2701的控制来实现装置2600的功能。
此外，如图27所示，用户设备2700还可以包括：通信模块2703、输入单元2704、显示器2706、音频处理器2705、天线2707和电源2708等。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，用户设备2700也并不是必须要包括图27中所示的所有部件；此外，用户设备2700还可以包括图27中没有示出的部件，可以参考现有技术。
由上述实施例可知，UE读取到包含随机退避指示的MAC子头或其对应的MAC subPDU时，即确认之后没有MAC子头或其对应的MAC subPDU，从而能够结束读取操作，解决了现有技术中存在的问题。
在LTE系统中，由于每个小区基站根据根序列和由该根序列生成的循环移位序列能够生成64个随机接入前导序列，所以在随机接入响应消息中用6比特的字段指示用户发送的随机接入前导序列的序列号标识。
在未来无线通信系统，例如5G、新无线(NR，New Radio)系统中，为了支持更加复杂的业务场景，需要扩展随机接入前导序列的数量，因此，随机接入前导序列的数量可能会大于64个。因此，该随机接入响应消息中的6比特字段无法指示随机接入前导序列的序列号标识。
为此，本实施例提出一种随机接入方法、装置以及通信系统，通过两部分指示信息共同指示随机接入前导序列，从而能够适应随机接入前导序列数量的扩展，解决了现有技术中存在的问题。
下面结合附图对分别对上述两种方法进行说明。
实施例23
本发明实施例23提供一种随机接入方法，应用于网络设备侧，例如，可以应用于响应用户设备发起的随机接入过程的装置。
图28是本实施例中该随机接入方法流程图，如图28所示，该方法包括：
步骤2801，利用第一指示信息和第二指示信息指示随机接入前导序列。
其中，利用第一指示信息和所述第二指示信息指示该随机接入前导序列的相关信息。例如该相关信息可以是序列号标识，例如RAPID，利用该第一指示信息和第二指示信息可以指示该RAPID，但本实施例并不以此作为限制，该相关信息还可以是随机接入前导序列的其他信息。
在本实施例中，该相关信息可以是第一预定数量(N)的比特字段。
其中，该第一指示信息可以通过随机接入响应消息承载，例如，该第一指示信息是第二预定数量N1的比特字段，该相关信息的高位比特(如高N1位比特)通过该第一指示信息指示，或该相关信息的低位比特(如低N1位比特)通过该第一指示信息指示。
例如，N1可以等于6，即根据随机接入响应消息(Msg.2)中的6比特字段(例如可以是现有的RAPID 6比特字段)来指示随机接入前导序列的序列号的高6位或低6位，但本实施例并不以此作为限制，N1也可以大于6(例如可以是现有的RAPID6比特字段+其他扩展字段)，也可以小于6(例如可以是现有的RAPID一部分比特字段)。
在本实施例中，可以利用加扰信息加扰向UE侧发送的随机接入响应消息，其中，利用该加扰信息指示该第二指示信息。
其中，该加扰信息是随机接入无线网络临时标识RA-RNTI。
例如，该第二指示信息是第三预定数量N2的比特字段，该相关信息的高位比特(如高N2位比特)通过该第二指示信息指示，或该相关信息的低位比特(如低N2位比特)通过该第二指示信息指示。
在本实施例中，可以利用该加扰信息的计算方式来指示该第二指示信息，换句话说，根据该第二指示信息来计算加扰信息，例如，现有的RA-RNTI的计算方式是： RA-RNTI＝1+t_id+10×f_id，其中，t_id为子帧索引，f_id为子帧内的第几个时频资源。在本实施例中，在计算RA-RNTI时还需要考虑该第二指示信息。
例如，RA-RNTI＝1+t_id+10×f_id+X，其中，X可以是N2位比特的十进制值，例如N2＝2时，且为00时，X＝0，为01时，X＝1，为10时，X＝2，为11时，X＝3，N2还可以其他值，此处不再一一举例。
其中，N，N1和N2是正整数。
以上RA-RNTI的计算公式仅为示例，本实施例并不以此作为限制。
由上述实施例可知，通过两部分指示信息共同指示随机接入前导序列，从而能够适应随机接入前导序列数量的扩展，解决了现有技术中存在的问题。
实施例24
本发明实施例24提供一种随机接入方法，应用于用户设备侧，例如，可以应用于发起的随机接入过程的装置。
图29是本实施例中随机接入方法流程图，如图29所示，该方法包括：
步骤2901，利用第一指示信息和第二指示信息确定随机接入前导序列。
其中，利用第一指示信息和所述第二指示信息指示该随机接入前导序列的相关信息。例如该相关信息可以是序列号标识，例如RAPID，利用该第一指示信息和第二指示信息可以指示该RAPID。
在本实施例中，该相关信息可以是第一预定数量(N)的比特字段。
以下分别说明如何利用第一指示信息和第二指示信息确定随机接入前导序列。
关于该第二指示信息：
在本实施例中，UE根据该第二指示信息确定随机接入前导序列可以采用如下方式：根据第二指示信息确定解扰网络侧发送的随机接入响应消息的解扰信息，在根据第二指示信息确定的解扰信息成功解扰时，表示随机接入前导序列的相关信息(例如RAPID)的一部分校验成功(即与UE发送的随机接入前导序列的相关信息的对应部分相符)。其中，该解扰信息是随机接入无线网络临时标识。
例如，该第二指示信息是第三预定数量N2的比特字段，该相关信息的高位比特(如高N2位比特)通过该第二指示信息指示，或该相关信息的低位比特(如低N2位比特)通过该第二指示信息指示，例如，在根据第二指示信息确定的解扰信息成功 解扰时，表示随机接入前导序列的相关信息(例如RAPID)的高位比特或低位比特校验成功(即与UE发送的随机接入前导序列的相关信息的对应高位比特或低位比特相同)。
在本实施例中，可以根据该第二指示信息计算该解扰信息，例如，现有的RA-RNTI的计算方式是：RA-RNTI＝1+t_id+10×f_id，其中，t_id为子帧索引，f_id为子帧内的第几个时频资源。在本实施例中，在计算RA-RNTI时还需要考虑该第二指示信息。
例如，RA-RNTI＝1+t_id+10×f_id+X，其中，X可以是N2位比特的十进制值，例如N2＝2时，且为00时，X＝0，为01时，X＝1，为10时，X＝2，为11时，X＝3，N2还可以其他值，此处不再一一举例。
以上RA-RNTI的计算公式仅为示例，本实施例并不以此作为限制。
关于该第一指示信息：
在本实施例中，在步骤2901前，该方法还可以包括：
步骤2900，接收网络侧发送的承载该第一指示信息的随机接入响应消息(Msg.2)，根据该随机接入响应消息获得该第一指示信息。
在本实施例中，该第一指示信息是第二预定数量N1的比特字段，该相关信息的高位比特(如高N1位比特)通过该第一指示信息指示，或该相关信息的低位比特(如低N1位比特)通过该第一指示信息指示。
例如，N1可以等于6，即根据随机接入响应消息(Msg.2)中的6比特字段(例如可以是现有的RAPID 6比特字段)来指示随机接入前导序列的序列号的高6位或低6位，但本实施例并不以此作为限制，N1也可以大于6(例如可以是现有的RAPID6比特字段+其他扩展字段)，也可以小于6(例如可以是现有的RAPID一部分比特字段)。
其中，用户设备读取该随机接入响应消息，例如，根据该随机接入响应消息中的RAPID字段确定该第一指示信息。UE根据该第一指示信息确定随机接入前导序列可以采用如下方式：将读取到的第一指示信息与UE发送的随机接入前导序列的相关信息的另一部分进行比较，在第一指示信息与该相关信息的另一部分相符时，表示随机接入前导序列的相关信息的另一部分校验成功。例如，将该第一指示信息与UE发送的随机接入前导序列的相关信息(例如RAPID)的高位比特或低位比特进行比较， 在比较结果为一致时，表示校验成功(即与UE发送的随机接入前导序列的相关信息的对应高位比特或低位比特相同)。
由于在读取该随机接入响应消息时，表示根据第二指示信息已经成功解扰，即根据第二指示信息确定随机接入前导序列的相关信息的一部分校验成功，根据第一指示信息确定随机接入前导序列的相关信息的另一部分校验成功，即该随机接入前导序列的相关信息(例如RAPID)与UE发送的随机接入前导序列的相关信息(例如RAPID)相同，表示随机接入响应消息中的随机接入响应数据(RAR)成功接收，也表示随机接入响应消息中的随机接入响应数据是发送给该UE本身，而不是发送给其他UE的。
其中，N，N1和N2是正整数。
由上述实施例可知，通过两部分指示信息共同指示随机接入前导序列，从而能够适应随机接入前导序列数量的扩展，解决了现有技术中存在的问题。
实施例25
本实施例25还提供一种随机接入装置，由于该装置解决问题的原理与实施例23的方法类似，因此其具体的实施可以参考实施例23的方法的实施，内容相同之处不再重复说明。
图30是本发明实施例25的随机接入装置示意图；如图30所示，该装置3000包括：
指示单元3001，其用于利用第一指示信息和第二指示信息指示随机接入前导序列。
其中，第一指示信息通过随机接入响应消息承载。
在本实施例中，该装置还可以包括：
第一处理单元3002，其用于利用加扰信息加扰向UE侧发送的随机接入响应消息，其中，利用该加扰信息指示该第二指示信息。
其中，该加扰信息是随机接入无线网络临时标识。
其中，该指示单元3001利用该第一指示信息和该第二指示信息指示该随机接入前导序列的相关信息，其中，该相关信息是序列号标识，该相关信息是第一预定数量的比特字段。
其中，该第一指示信息和第二指示信息可以是比特字段，其具体表示方法可以参 考实施例23，此处不再赘述。
由上述实施例可知，通过两部分指示信息共同指示随机接入前导序列，从而能够适应随机接入前导序列数量的扩展，解决了现有技术中存在的问题。
实施例26
本实施例26提供了一种网络设备，由于该设备解决问题的原理于实施例26的方法类似，因此其具体的实施可以参考实施例23的方法实施，内容相同之处不再重复说明。
在本实施例中还提供一种网络设备(未图示)，该网络设备配置有如前所述的随机接入装置3000。
本实施例26还提供了一种网络设备，图31是本发明实施例26的网络设备的构成示意图；如图31所示，网络设备3100可以包括：中央处理器(CPU)3101和存储器3102；存储器3102耦合到中央处理器3101。其中该存储器3102可存储各种数据；此外还存储数据处理的程序，并且在中央处理器3101的控制下执行该程序，以发送相关信息。
在一个实施方式中，装置3000的功能可以被集成到中央处理器3101中。其中，中央处理器3101可以被配置为实现实施例23该的随机接入方法。
例如，中央处理器3101可以被配置为：利用第一指示信息和第二指示信息指示随机接入前导序列。
其中，该第一指示信息通过随机接入响应消息承载。
例如，中央处理器3101可以被配置为：利用加扰信息加扰向UE侧发送的随机接入响应消息，其中，利用该加扰信息指示该第二指示信息。
其中，该加扰信息是随机接入无线网络临时标识。
其中，该第一指示信息和第二指示信息可以是比特字段，其具体表示方法可以参考实施例23，此处不再赘述。
另外，该中央处理器3101的具体配置方式可以参考实施例23，此处不再赘述。
在另一个实施方式中，上述装置3000可以与中央处理器3101分开配置，例如，可以将装置3000配置为与中央处理器3101连接的芯片，如图31所示的单元，通过中央处理器3101的控制来实现装置3000的功能。
此外，如图31所示，网络设备3100还可以包括：收发机3103和天线3104等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备3100也并不是必须要包括图31中所示的所有部件；此外，网络设备3100还可以包括图31中没有示出的部件，可以参考现有技术。
由上述实施例可知，通过两部分指示信息共同指示随机接入前导序列，从而能够适应随机接入前导序列数量的扩展，解决了现有技术中存在的问题。
实施例27
本实施例27还提供一种随机接入装置，由于该装置解决问题的原理与实施例24的方法类似，因此其具体的实施可以参考实施例24的方法的实施，内容相同之处不再重复说明。
图32是本发明实施例27的随机接入装置示意图；如图32所示，该装置3200包括：
确定单元3201，其用于利用第一指示信息和第二指示信息确定随机接入前导序列。
在本实施例中，该装置还可以包括：
第五接收单元3202，其用于接收网络侧发送的承载该第一指示信息的随机接入响应消息，确定单元3201根据该随机接入响应消息获得该第一指示信息。
其中，确定单元3201根据该第二指示信息确定解扰网络侧发送的随机接入响应消息的解扰信息，以确定该随机接入前导序列。
其中，该解扰信息是随机接入无线网络临时标识。
其中，该相关信息是序列号标识，该相关信息是第一预定数量的比特字段。
其中，该第一指示信息和第二指示信息可以是比特字段，其具体表示方法可以参考实施例24，此处不再赘述。
在本实施例中，该确定单元3201与第五接收单元3202的具体实施方式可以参考实施例24中步骤2900-2901，此处不再赘述。
由上述实施例可知，通过两部分指示信息共同指示随机接入前导序列，从而能够适应随机接入前导序列数量的扩展，解决了现有技术中存在的问题。
实施例28
本实施例还提供一种用户设备，由于该设备解决问题的原理于实施例24的方法类似，因此其具体的实施可以参考实施例8的方法实施，内容相同之处不再重复说明。
在本实施例中还提供一种用户设备(未图示)，该用户设备配置有如前所述的随机接入装置3200。
本实施例还提供一种用户设备，图33是本发明实施例28的用户设备的构成示意图；图33是本发明实施例的用户设备的构成示意图。如图33所示，用户设备3300可以包括：中央处理器(CPU)3301和存储器3302；存储器3302耦合到中央处理器3301。其中该存储器3302可存储各种数据；此外还存储数据处理的程序，并且在中央处理器3301的控制下执行该程序，以进行随机接入。
在一个实施方式中，装置3200的功能可以被集成到中央处理器3301中。其中，中央处理器3301可以被配置为实现实施例24所述的随机接入方法。
例如，中央处理器3301可以被配置为：利用第一指示信息和第二指示信息确定随机接入前导序列。
例如，中央处理器3301可以被配置为：接收网络侧发送的承载该第一指示信息的随机接入响应消息，根据该随机接入响应消息获得该第一指示信息。
例如，中央处理器3301可以被配置为：根据该第二指示信息确定解扰网络侧发送的随机接入响应消息的解扰信息，以确定该随机接入前导序列。
其中，该解扰信息是随机接入无线网络临时标识，相关信息是序列号标识，该相关信息是第一预定数量的比特字段。
其中，该第一指示信息和第二指示信息可以是比特字段，其具体表示方法可以参考实施例24，此处不再赘述。
另外，该中央处理器3301的其他配置方式可以参考实施例24，此处不再赘述。
在另一个实施方式中，上述装置3200可以与中央处理器3301分开配置，例如，可以将装置3200配置为与中央处理器3301连接的芯片，如图33所示的随机接入单元，通过中央处理器3301的控制来实现装置3200的功能。
此外，如图33所示，用户设备3300还可以包括：通信模块3303、输入单元3304、显示器3306、音频处理器3305、天线3307和电源3308等。其中，上述部件的功能 与现有技术类似，此处不再赘述。值得注意的是，用户设备3300也并不是必须要包括图33中所示的所有部件；此外，用户设备3300还可以包括图33中没有示出的部件，可以参考现有技术。
由上述实施例可知，通过两部分指示信息共同指示随机接入前导序列，从而能够适应随机接入前导序列数量的扩展，解决了现有技术中存在的问题。
实施例29
图34是本发明实施例29的通信系统构成示意图，如图34所示，通信系统3400包括网络侧的网络设备3401和用户设备3402。
其中，网络设备3401和用户设备3402的构成可以如实施例10和实施例12所述，将其内容合并于此，此处不再赘述。
其中，网络设备3401和用户设备3402的构成还可以如实施例14和实施例16所述，将其内容合并于此，此处不再赘述。
其中，网络设备3401可以参考现有技术，用户设备3402的构成还可以如实施例18所述，将其内容合并于此，此处不再赘述。
其中，网络设备3401和用户设备3402的构成还可以如实施例20和实施例22所述，将其内容合并于此，此处不再赘述。
其中，网络设备3401和用户设备3402的构成还可以如实施例26和实施例28所述，其工作流程如下图35所示，将其内容合并于此，此处不再赘述。
图35是本实施例中随机接入方法流程图，如图35所示，该方法包括：
步骤3501，UE向网络侧发送随机接入前导序列(Msg.1)；
步骤3502，网络侧接收到UE发送的随机接入前导序列，确定随机接入前导序列的序列号标识，其中，该序列号标识为第一预定数量的比特字段；根据第一预定数量中的第三预定数量的比特字段计算RA-RNTI，并根据计算得到的RA-RNTI加扰PDCCH；
步骤3503，向UE发送包含第一预定数量中的第二预定数量的比特字段随机接入响应消息(Msg.2)；
步骤3504，UE根据第一预定数量中的第三预定数量的比特字段计算RA-RNTI，并根据计算得到的RA-RNTI解扰PDCCH，在成功解扰时，接收包含第一预定数量 中的第二预定数量的比特字段随机接入响应消息(Msg.2)；
其中，网络侧和UE计算该RA-RNTI的方式相同，可以根据标准预定义该公式，其具体实施方式可以参考实施例23和24，此处不再赘述。
其中，在成功解扰时，表示序列号表示的一部分比特(高位或低位)校验成功。
步骤3505，UE将该第二预定数量的比特字段与步骤3501中发送的随机接入前导序列的序列号标识的另一部分比特(低位或高位)进行比较，在相同时，表示RAR成功接收。
步骤3506，在成功接收时，UE在RAR中指定的资源上向网络侧发送上行消息(Msg.3)；该上行消息中包含UE标识；例如，该Msg.3可以是无线资源控制连接请求(RRC connection request)。
步骤3507，网络侧接收到该上行消息，根据其中包含的UE标识向随机接入成功的UE返回冲突解决消息(Msg.4)。
在本实施例中，在该随机接入是非竞争随机接入时，在步骤3501之前，该方法还可包括步骤(未示出)：网络侧向UE发送的指示信息，该指示消息用于指示随机接入过程使用的随机接入前导序列的时频位置和使用的接入资源，其具体实施方式可以参考现有技术，此处不再重复。
本发明实施例还提供一种计算机可读程序，其中当信息传输装置或用户设备中执行所述程序时，所述程序使得所述信息传输装置或用户设备执行实施例2所述的信息传输方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得信息传输装置或用户设备执行实施例2所述的信息传输方法。
本发明实施例还提供一种计算机可读程序，其中当信息传输装置或网络设备中执行所述程序时，所述程序使得所述信息传输装置或网络设备执行实施例1所述的信息传输方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得信息传输装置或网络设备执行实施例1所述的信息传输方法。
本发明实施例还提供一种计算机可读程序，其中当在随机接入装置或网络设备基站中执行所述程序时，所述程序使得所述随机接入装置或网络设备执行实施例4所述的随机接入方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得随机接入装置或网络设备执行实施例4所述的随机接入方法。
本发明实施例还提供一种计算机可读程序，其中当在随机接入装置或用户设备基站中执行所述程序时，所述程序使得所述随机接入装置或用户设备执行实施例5所述的随机接入方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得随机接入装置或用户设备执行实施例5所述的随机接入方法。
本发明实施例还提供一种计算机可读程序，其中当在随机接入装置或用户设备基站中执行所述程序时，所述程序使得所述随机接入装置或用户设备执行实施例6所述的随机接入方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得随机接入装置或用户设备执行实施例6所述的随机接入方法。
本发明实施例还提供一种计算机可读程序，其中当在随机接入装置或网络设备基站中执行所述程序时，所述程序使得所述随机接入装置或网络设备执行实施例7所述的随机接入方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得随机接入装置或网络设备执行实施例7所述的随机接入方法。
本发明实施例还提供一种计算机可读程序，其中当在随机接入装置或用户设备基站中执行所述程序时，所述程序使得所述随机接入装置或用户设备执行实施例8所述的随机接入方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得随机接入装置或用户设备执行实施例8所述的随机接入方法。
本发明实施例还提供一种计算机可读程序，其中当在随机接入装置或网络设备基站中执行所述程序时，所述程序使得所述随机接入装置或网络设备执行实施例23所述的随机接入方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得随机接入装置或网络设备执行实施例23所述的随机接入方法。
本发明实施例还提供一种计算机可读程序，其中当在随机接入装置或用户设备基 站中执行所述程序时，所述程序使得所述随机接入装置或用户设备执行实施例24所述的随机接入方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得随机接入装置或用户设备执行实施例24所述的随机接入方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的在随机接入装置中的随机接入方法可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图13-27，30-33中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图1，3-10，12，28-29所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(例如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对图13-27，30-33描述的功能框图中的一个或多个和/或功能框图的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或其它可编程逻辑器件、分立门或晶体管逻辑器件、分立硬件组件、或者其任意适当组合。针对图13-27，30-33描述的功能框图中的一个或多个和/或功能框图的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结 合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。

Claims (36)

  1. 一种信息传输装置，其中，所述装置包括：
    第一发送单元，其用于向用户设备发送符号标识信息，所述符号标识信息指示用户设备发送的随机接入前导序列所使用的符号的相关信息。
  2. 根据权利要求1所述的装置，其中，所述第一发送单元通过随机接入响应消息发送所述符号标识信息。
  3. 根据权利要求2所述的装置，其中，所述符号标识信息包含在所述随机接入响应消息的媒体介入控制层(MAC)子头或者MAC子头对应的MAC子数据单元中。
  4. 根据权利要求1所述的装置，其中，所述符号的相关信息是所述用户设备发送的随机接入前导序列在时域上所占用的符号位置信息。
  5. 根据权利要求1所述的装置，其中，所述符号标识信息是一个至少4比特的字段。
  6. 一种信息传输装置，其中，所述装置包括：
    第一接收单元，其用于接收网络侧发送的符号标识信息，所述符号标识信息指示用户设备发送随机接入前导序列所使用的符号的相关信息。
  7. 根据权利要求6所述的装置，其中，在网络侧通过随机接入响应消息发送所述符号标识信息时，所述第一接收单元读取网络侧发送的所述随机接入响应消息以接收所述符号标识信息；
    所述装置还包括：
    判断单元，其用于利用所述符号标识信息判断网络侧发送的所述随机接入响应消息中包含的随机接入响应数据是否成功接收。
  8. 根据权利要求7所述的装置，其中，所述符号的相关信息是所述用户设备发送的随机接入前导序列在时域上所占用的符号位置信息；
    所述判断单元包括：
    第一判断模块，其用于判断所述符号标识信息指示的符号位置是否与所述用户设备发送的随机接入前导序列在时域上所占用的符号位置相符；
    和/或，
    第二判断模块，其用于判断所述随机接入响应消息中包含的随机接入前导序列标 识是否与所述用户设备发送的随机接入前导序列标识相符。
  9. 根据权利要求8所述的装置，其中，所述判断单元还包括：
    确定模块，其用于在所述第一判断模块判断结果为相符时，确定所述随机接入响应消息中包含的随机接入响应数据成功接收，或，
    在所述第一判断模块判断结果为相符，且所述第二判断模块判断结果为相符时，确定所述随机接入响应消息中包含的随机接入响应数据成功接收。
  10. 根据权利要求6所述的装置，其中，所述符号的相关信息是所述用户设备发送的随机接入前导序列在时域上所占用的符号位置信息。
  11. 一种随机接入装置，其中，所述装置包括：
    第二发送单元，其用于向用户设备发送随机接入响应消息，所述随机接入响应消息中包含数据类型指示信息，所述数据类型指示信息指示MAC子头或MAC子数据单元的数据格式和/或用途，其中，所述数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，所述用途包括用于指示按需系统信息请求的确认的第一用途。
  12. 根据权利要求11所述的装置，其中，所述数据类型指示信息包含在所述随机接入响应消息的MAC子头或者MAC子头对应的MAC子数据单元中。
  13. 根据权利要求11所述的装置，其中，所述数据格式还包括随机退避指示信息的第二数据格式，和/或至少包含前导序列标识和其对应的随机接入响应数据的第三数据格式。
  14. 根据权利要求11所述的装置，其中，所述用途还包括用于指示随机退避时间的第二用途，和/或用于指示正常随机接入响应的第三用途。
  15. 根据权利要求11所述的装置，其中，所述数据类型指示信息是一个1或2比特的字段。
  16. 一种随机接入装置，其中，所述装置包括：
    第二接收单元，其用于接收随机接入响应消息，所述随机接入响应消息中包含数据类型指示信息，所述数据类型指示信息指示MAC子数据单元的数据格式和/或用途，其中，所述数据格式包括包含前导序列标识但不包含其对应的随机接入响应数据的第一数据格式，所述用途包括用于指示按需系统信息请求的确认的第一用途。
  17. 一种随机接入装置，其中，所述装置包括：
    第三接收单元，其用于接收随机接入响应消息；
    第一确定单元，其用于在所述随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且所述随机接入前导序列标识属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定所述MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示按需系统信息请求的确认；或者，在所述随机接入响应消息中的MAC子头或者MAC子头对应的MAC子数据单元包含随机接入前导序列标识，且所述随机接入前导序列标识不属于预先配置的用于按需系统信息请求的随机接入前导序列的序列标识集合时，确定所述MAC子头或者MAC子头对应的MAC子数据单元的用途是用于指示正常随机接入响应。
  18. 一种随机接入装置，其中，所述装置包括：
    第三发送单元，其用于发送随机接入响应消息，其中，所述随机接入响应消息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
  19. 一种随机接入装置，其中，所述装置包括：
    第四接收单元，其用于接收随机接入响应消息，其中，所述随机接入响应消息中包括多个MAC子头或者MAC子头对应的MAC子数据单元，其中，包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元的位置在所有MAC子头或者MAC子头对应的MAC子数据单元中的最后一个。
  20. 根据权利要求19所述的装置，其中，所述装置还包括：
    第二确定单元，其用于依次读取随机接入响应消息中包括的多个MAC子头或者MAC子头对应的MAC子数据单元，在读取到包含随机退避指示消息的MAC子头或者MAC子头对应的MAC子数据单元时，确定所述随机接入响应消息读取结束。
  21. 一种随机接入装置，其中，所述装置包括：
    指示单元，其用于利用第一指示信息和第二指示信息指示随机接入前导序列。
  22. 根据权利要求21所述的装置，其中，所述第一指示信息通过随机接入响应消息承载。
  23. 根据权利要求21所述的装置，其中，所述装置包括：
    第一处理单元，其用于利用加扰信息加扰向UE侧发送的随机接入响应消息，其中，利用所述加扰信息指示所述第二指示信息。
  24. 根据权利要求23所述的装置，其中，所述加扰信息是随机接入无线网络临时标识。
  25. 根据权利要求21所述的装置，其中，所述指示单元指示随机接入前导序列的序列号标识，所述序列号标识是第一预定数量的比特字段。
  26. 根据权利要求25所述的装置，其中，所述第一指示信息是第二预定数量N的比特字段，所述第二指示信息是第三预定数量M的比特字段。
  27. 根据权利要求25所述的装置，其中，所述序列号标识的高N位比特通过所述第一指示信息指示，或所述序列号标识的低N位比特通过所述第一指示信息指示。
  28. 根据权利要求25所述的装置，其中，所述序列号标识的高M位比特通过所述第二指示信息指示，或所述序列号标识的低M位比特通过所述第二指示信息指示。
  29. 一种随机接入装置，其中，所述装置包括：
    确定单元，其用于利用第一指示信息和第二指示信息确定随机接入前导序列。
  30. 根据权利要求29所述的装置，其中，所述确定单元确定随机接入前导序列的序列号标识，所述序列号标识是第一预定数量的比特字段。
  31. 根据权利要求29所述的装置，其中，所述装置还包括：
    第五接收单元，其用于接收网络侧发送的承载所述第一指示信息的随机接入响应消息，所述确定单元根据所述随机接入响应消息获得所述第一指示信息。
  32. 根据权利要求29所述的装置，其中，所述确定单元根据所述第二指示信息确定解扰网络侧发送的随机接入响应消息的解扰信息，以确定所述随机接入前导序列。
  33. 根据权利要求32所述的装置，其中，所述解扰信息是随机接入无线网络临时标识。
  34. 根据权利要求30所述的装置，其中，所述第一指示信息是第二预定数量N的比特字段，所述第二指示信息是第三预定数量M的比特字段。
  35. 根据权利要求34所述的装置，其中，所述序列号标识的高N位比特通过所述第一指示信息指示，或所述序列号标识的低N位比特通过所述第一指示信息指示。
  36. 根据权利要求34所述的装置，其中，所述序列号标识的高M位比特通过所述第二指示信息指示，或所述序列号标识的低M位比特通过所述第二指示信息指示。
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