WO2018082392A1 - Method and apparatus for instructing and transmitting transmission point or beam of new generation wireless communication system - Google Patents

Method and apparatus for instructing and transmitting transmission point or beam of new generation wireless communication system Download PDF

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Publication number
WO2018082392A1
WO2018082392A1 PCT/CN2017/100243 CN2017100243W WO2018082392A1 WO 2018082392 A1 WO2018082392 A1 WO 2018082392A1 CN 2017100243 W CN2017100243 W CN 2017100243W WO 2018082392 A1 WO2018082392 A1 WO 2018082392A1
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WIPO (PCT)
Prior art keywords
random access
transmission
transmission point
access response
terminal
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PCT/CN2017/100243
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French (fr)
Chinese (zh)
Inventor
谌丽
陈瑞卡
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电信科学技术研究院
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Publication of WO2018082392A1 publication Critical patent/WO2018082392A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/28Cell structures using beam steering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a transmission point or beam indication and transmission method and apparatus of a new generation wireless communication system.
  • FIG 1 is a schematic diagram of a new generation wireless communication system architecture.
  • the network architecture introduced in a new generation wireless communication system (called NG or 5G system) is shown in Figure 1.
  • the network side node next generation base station may include one or more transmission points to transmit a reception point/transmission point (TRP), and each transmission point may be performed by using a different beam (Beam) and the terminal.
  • Beam beam
  • Air interface signaling and data transmission that is, in a cell under one gNB, the TRP is a network-side transmission point that directly performs air interface transmission with the terminal, and the TRP and the terminal transmit the manner by communicating with the terminal through different beams, and the beam may be omnidirectional (360 degrees) or oriented. (less than 360 degrees, can be tens or ten degrees).
  • One or more TRP/beams can simultaneously serve one terminal for signaling and data transmission.
  • UE user equipment
  • inactive UE active UE
  • Receive cell level information including one or more TRP/Beams and perform cell level measurements.
  • the cell-level information such as the cell-level system message, is sent through all or a part of the transmission points or beam synchronization in the cell; the reference signal measured at the cell level is also synchronously transmitted on all or a part of the transmission points or beams in the cell.
  • this method may increase the air interface resource overhead and reduce the system capacity; or increase the power consumption of the network side and the terminal; or because the terminal cannot recognize the TRP/Beam, Accurate channel estimation measurement and precise power control are not conducive to the improvement of signaling and data transmission reliability.
  • the present application provides a transmission point or beam indication, transmission method and apparatus for a new generation wireless communication system, so that the UE can identify the TRP/Beam when it needs to perform signaling and data transmission with the network side, thereby
  • the transmission process can reduce resource overhead, increase system capacity, and improve transmission reliability.
  • a transmission point or beam indication method in a new generation wireless communication system including:
  • the network side determines a transmission point or beam that provides signaling and/or data transmission to the terminal in the cell;
  • a random access response is sent to the terminal, where the random access response carries information of the transmission point or the beam Beam.
  • the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal, or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1;
  • the random access response carries information about the transmission point or the beam, and is sent together with a unique reference signal of the transmission point or the beam when the random access response is sent, the unique reference signal
  • the method is configured to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
  • carrying the unique reference signal refers to scrambling the random access response by using an RA-RNTI, and the RA-RNTI is obtained by calculating a transmission point or a beam identifier that sends the Msg1 as an input parameter.
  • it further includes:
  • it further includes:
  • the terminal allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
  • the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • a transmission method in a new generation wireless communication system including:
  • the terminal receives a random access response, and the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to the intra-cell terminal;
  • the terminal performs TRP/Beam level transmission according to the transmission point or beam.
  • it further includes:
  • the Msg1 is sent in the cell according to the random access resource configuration, and the system message is sent by using all or part of the transmission point or beam synchronization of the cell. of.
  • it further includes:
  • the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is a contention resolution message Msg4 sent by all transmission points or beams in the receiving cell for all transmission points or beams.
  • determining, according to the random access response, the transmission point or the beam is determined according to a transmission point or a beam-specific reference signal detected by the random access response when the random access response is sent. .
  • it further includes:
  • the terminal that does not initiate the random access obtains the information of all the transmission points or beams in the cell through the random access response message, and detects the currently working transmission point or beam, or the terminal that fails the random access uses all the received cells. Transmitting point or beam information to detect the current working transmission point or beam;
  • the random access response carries the information about the transmission point or the beam, and when the sent random access response is sent together with the unique reference signal of the transmission point or the beam, according to the detected unique feature
  • the reference signal determines the transmission point or beam.
  • the information of the transmission point or beam includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • a transmission point or beam indicating device in a new generation wireless communication system is provided in the embodiment of the present application, including:
  • a network side determining module configured to determine, at the network side, a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell;
  • a sending module configured to send a random access response to the terminal in the random access process, where the random access response carries information about the transmission point or the beam Beam.
  • the network side determining module is further configured to determine a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell, where the transmission point of the Msg1 sent by the terminal is received, or corresponds to the uplink beam that receives the Msg1. Upstream and downlink beam pairs; or, all transmission points or beams in the cell.
  • the sending module is further configured to: when the random access response carries the information of the transmission point or the beam, when the random access response is sent, together with the unique reference signal of the transmission point or the beam Transmit, the unique reference signal is used to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
  • the sending module is further configured to: when carrying the specific reference signal, the random access response is scrambled by using an RA-RNTI, where the RA-RNTI calculates a transmission point or a beam identifier that sends the Msg1 as an input parameter. Obtained.
  • it further includes:
  • the network side receiving module is configured to receive the Msg1 sent by the terminal, where the Msg1 is the Msg1 sent in the cell according to the random access resource configuration after the terminal acquires the cell-level random access resource configuration from the received system message.
  • the system message is sent by the network side by means of all or part of the transmission point or beam synchronization transmission of the cell.
  • the sending module is further configured to allocate, for the terminal, the uplink transmission resource for the specific transmission point or the beam in the Msg2, and send the contention resolution message Msg4 on the transmission point or the beam; or, allocate the target for the terminal in the Msg2 All transmission points or uplink transmission resources of the beam, and the contention resolution message Msg4 is synchronously transmitted on all or a part of transmission points or beams in the cell.
  • the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • a transmission device in a new generation wireless communication system including:
  • a terminal-side receiving module configured to receive, by the terminal, a random access response, where the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to the intra-cell terminal;
  • a terminal side determining module configured to determine the transmission point or a beam according to the random access response
  • a transmission module configured to perform TRP/Beam level transmission according to the transmission point or the beam.
  • it further includes:
  • the terminal side sending module is configured to: after the terminal acquires the cell-level random access resource configuration from the received system message, send the Msg1 in the cell according to the random access resource configuration, where the system message uses all or part of the transmission point of the cell. Or sent by means of beam synchronous transmission.
  • the terminal-side receiving module is further configured to send an uplink transmission on an uplink resource allocated by the terminal in the Msg2, where the uplink resource allocation is based on a transmission point or a beam carried in the random access response for a specific transmission point or beam.
  • the information receives the contention resolution message Msg4; or, the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is for all the transmission points or beams, and all the transmission points or beams in the receiving cell are synchronously transmitted.
  • the competition resolves the message Msg4.
  • the terminal side determining module is further configured to: when determining the transmission point or beam according to the random access response, according to a transmission point that is sent together with the random access response when the random access response is sent Or beam-specific reference signal detection is determined.
  • the terminal side determining module is further configured to: after the terminal that does not initiate the random access, obtain the information of all the transmission points or beams in the cell by using the random access response message, and detect the currently working transmission point or beam, or randomly The failed terminal uses the information of all the transmission points or beams in the received cell to detect the currently working transmission point or beam;
  • the terminal side sending module is configured to send Msg1 on the detected transmission point or beam.
  • the terminal side determining module further sends, when the random access response carries the information of the transmission point or the beam, the sent random access response and the unique reference signal of the transmission point or the beam.
  • the transmission point or beam is determined based on the detected unique reference signal.
  • the information of the transmission point or beam includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • a transmission point or beam indicating device in a new generation wireless communication system is provided in the embodiment of the present application, including:
  • a processor for reading a program in the memory performing the following process:
  • a transceiver for receiving and transmitting data under the control of a processor, performing the following processes:
  • a random access response is sent to the terminal, where the random access response carries information of the transmission point or the beam Beam.
  • the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal, or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1;
  • the random access response carries information about the transmission point or the beam, and is sent together with a unique reference signal of the transmission point or the beam when the random access response is sent, the unique reference signal
  • the method is configured to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
  • carrying the unique reference signal refers to scrambling the random access response by using an RA-RNTI, and the RA-RNTI is obtained by calculating a transmission point or a beam identifier that sends the Msg1 as an input parameter.
  • it further includes:
  • it further includes:
  • the terminal allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
  • the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • a transmission device in a new generation wireless communication system including:
  • a processor for reading a program in the memory performing the following process:
  • a transceiver for receiving and transmitting data under the control of a processor, performing the following processes:
  • the random access response carrying information of a transmission point or a beam that provides signaling and/or data transmission to the transmitting device in the cell;
  • TRP/Beam level transmission is performed according to the transmission point or beam.
  • it further includes:
  • the Msg1 After acquiring the cell-level random access resource configuration from the received system message, the Msg1 is sent in the cell according to the random access resource configuration, where the system message is sent by using all or part of the transmission point or beam synchronous transmission of the cell. .
  • it further includes:
  • the uplink transmission is sent on the uplink resource allocated in the Msg2, and the uplink resource allocation is a contention resolution message Msg4 sent by all transmission points or beams in the receiving cell for all transmission points or beams.
  • determining, according to the random access response, the transmission point or the beam is determined according to a transmission point or a beam-specific reference signal detected by the random access response when the random access response is sent. .
  • it further includes:
  • the transmitting device that does not initiate the random access obtains information of all transmission points or beams in the cell through the random access response message, detects the currently working transmission point or beam, or uses the transmission device that fails the random access. Receiving information of all transmission points or beams in the received cell, and detecting a currently working transmission point or beam;
  • the random access response carries the information about the transmission point or the beam, and when the sent random access response is sent together with the unique reference signal of the transmission point or the beam, according to the detected unique feature
  • the reference signal determines the transmission point or beam.
  • the information of the transmission point or beam includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • the random access response is fed back to the terminal, and
  • the random access response carries information of the transmission point or beam, so that the terminal side can identify the TRP/Beam when it is required to perform signaling and data transmission with the network side.
  • the transmission point or beam is determined according to the random access response on the terminal side, and the TRP/Beam level transmission is performed subsequently using the transmission point or beam.
  • the terminal can be based on the network side.
  • the information carried in Msg2 identifies TRP/Beam, and uses the TRP/Beam for subsequent Msg3, Msg4, or subsequent signaling and data transmission, and thus eliminates the need for synchronization of TRP/Beam in all or multiple cells.
  • the method performs signaling and data transmission on the UE, thereby reducing air interface resource overhead, increasing system capacity, reducing power consumption of the network side and the terminal, and also enabling the terminal to identify the TRP/Beam, thereby enabling accurate channel estimation measurement and accurate power control. It is beneficial to improve the reliability of signaling and data transmission.
  • FIG. 1 is a schematic diagram showing the architecture of a new generation wireless communication system in the background art
  • FIG. 2 is a schematic diagram of a process of competing random access in an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a process of competing random access in an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a MAC RAR format in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a format of a back indication pointer in the embodiment of the present application.
  • FIG. 6 is a schematic diagram of a format of a random access response message in an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a method for implementing a TRP indication method in a network-side next-generation wireless communication system according to an embodiment of the present application
  • FIG. 8 is a schematic flowchart of a transmission method in a terminal-side next-generation wireless communication system according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a manner of organizing a random access response message according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a mode random access response PDU according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a method for organizing a random access response message according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a mode 2 random access response PDU according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a random access procedure according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of a random access procedure according to Embodiment 2 of the present application.
  • FIG. 16 is a schematic diagram of a random access procedure according to Embodiment 4 of the present application.
  • FIG. 17 is a schematic diagram of a random access procedure according to Embodiment 5 of the present application.
  • FIG. 18 is a schematic structural diagram of a transmission point or a beam indicating apparatus in a new generation wireless communication system according to an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a transmission device in a new generation wireless communication system according to an embodiment of the present application.
  • 20 is a schematic structural diagram of a network side node in an embodiment of the present application.
  • FIG. 21 is a schematic structural diagram of a terminal in an embodiment of the present application.
  • a UE that performs signaling and data interaction with the network side generally a connected UE or an inactive UE
  • LTE Long Term Evolution
  • the UE does not recognize the TRP/Beam, and the signaling interaction between the UE and the cell needs to be completed by all TRP/Beam in the cell.
  • the downlink data transmission to the UE requires all or a plurality of TRP/Beam simultaneous transmissions in the cell, and uplink data.
  • the transmission requires all or a large number of TRP/Beam simultaneous receptions within the cell.
  • This method increases the air interface resource overhead and reduces the system capacity.
  • it increases the power consumption of the network side and the terminal.
  • the terminal cannot identify the TRP/Beam, accurate channel estimation measurement and accurate power control cannot be performed, which is not conducive to the letter. Increased reliability of data transmission and transmission.
  • the random access of the LTE system is divided into two types: contention random access and non-contention random access.
  • the process is as follows:
  • Radio resource control (RRC) connection reestablishment is used for six purposes: terminal initial access; radio resource control (RRC) connection reestablishment; handover; downlink data arrival in RRC connected state in non-synchronized state; uplink data arrival in RRC connected state; Positioning in the RRC connected state.
  • RRC radio resource control
  • FIG. 2 is a schematic diagram of a competitive random access process, as shown in FIG. 2, which is mainly divided into four steps:
  • Msg1 The UE selects a random access preamble and a physical random access channel (PRACH) resource and uses the PRACH resource to send the selected random access preamble to the base station.
  • PRACH physical random access channel
  • the base station receives the preamble, calculates a timing advance (TA), and sends a random access response to the UE, where the random access response includes the timing advance information and uplink scheduling information (ULgrant) for Msg3, and A Cell-Radio Network Temporary Identifier (C-RNTI) assigned by the network side.
  • the physical downlink control channel (PDCCH) carrying the Msg2 scheduling message is scrambled by Random Access-Radio Network Temporary Identity (RA-RNTI), and the RA-RNTI is transmitted and transmitted within 10 ms.
  • TA timing advance
  • C-RNTI Cell-Radio Network Temporary Identifier
  • the time-frequency resource of the Msg1 uniquely corresponds; in addition, the Msg2 carries the preamble ID, and the UE determines, by the RA-RNTI and the preamble ID, that the Msg2 corresponds to the Msg1 sent by the UE.
  • Msg3 Scheduled transmission.
  • the UE sends an uplink transmission on the UL grant specified by Msg2.
  • the content of the Msg3 uplink transmission is different for different random access reasons. For example, for initial access, Msg3 transmits an RRC connection establishment request.
  • Msg4 Contention Resolution message
  • the UE can judge whether the random access is successful according to Msg4.
  • the temporary C-RNTI is automatically converted to the UE's unique in the cell after the contention resolution is successful.
  • the UE identifies the C-RNTI.
  • FIG. 3 is a schematic diagram of a competitive random access procedure, where non-contention random access is used for handover, downlink data arrival, location, and acquisition of uplink timing. As shown in Figure 2, it is mainly divided into three steps:
  • the base station allocates a dedicated preamble for non-contention random access and a PRACH resource used for random access to the UE.
  • Msg1 The UE sends the designated dedicated preamble to the base station on the designated PRACH resource according to the indication of Msg0. After receiving the Msg1, the base station calculates the uplink timing advance TA according to Msg1.
  • the base station sends a random access response to the UE.
  • the random access response includes timing advance information and a subsequent uplink transmission resource allocation UL grant, and the timing advance is used for the timing relationship of the UE subsequent uplink transmission.
  • MAC RAR PDU Media Access Control, media access control
  • RAR Random Access Response, random access response
  • PDU Protocol Data Unit
  • the random access response header the RAPID (Random Preamble ID) is used to indicate the ID of the preamble received by the base station, and E is used to indicate whether there is another random access response header.
  • the UE identifies whether to respond to the preamble sent by itself by the RAPID, and identifies the time-frequency resource location of the preamble transmission by identifying the RA-RNTI scrambled for the MAC RAR PDU whose value is obtained by transmitting the time-frequency resource location of the preamble.
  • the UE combines the RA-RNTI and the RAPID to finally identify that the MAC RAR PDU is a random access response sent by itself.
  • a backoff indication is used to indicate a delay parameter of the next random access after the random access failure of the UE.
  • T is used to indicate whether the subsequent is BI or RAPID.
  • FIG. 6 is a schematic diagram of a random access response message format, as shown in the figure, a random access response message: the left is a regular random access response, and the right is an extended random access response.
  • the UE that does not need to perform signaling and data interaction with the network side only knows the cell-level information, and the initially accessed UE has no TRP/Beam information, and can only pass the cell-level information and The resource is randomly accessed.
  • the UE sends Msg1 to be received by all or a part of the transmission points or beams in the cell, and can be effectively identified by the network side.
  • the network side sends the random access response Msg2 to the UE, it also passes the intra-cell TRP/Beam. Sent in synchronous mode. Subsequent Msg3 and Msg4 are also transmitted by intra-cell TRP/Beam synchronization.
  • TRP/Beam information occupies all or most of the TRP/Beam resources in the cell. Moreover, if the aforementioned UE is to perform signaling and data transmission with the network side (connected state UE), it is necessary to determine TRP/Beam information to reduce resource overhead and achieve reliable transmission, and the initially accessed UE needs to pass. Get TRP/Beam information in some way.
  • one cell may contain multiple TRP/Beams. If the cell-level signaling and the data transmission mode of the LTE are adopted, the TRP/Beam in all or multiple cells needs to perform signaling and data transmission in a synchronous manner in the UE.
  • a typical situation is that the message in the random access process needs to be The TRP/Beam in the cell is synchronously transmitted and received. In this way, the air interface resource overhead is increased and the system capacity is reduced.
  • the network side and the terminal power consumption are increased. Thirdly, since the terminal cannot identify the TRP/Beam, accurate channel estimation measurement and accurate power control cannot be performed, which is disadvantageous for signaling. And the reliability of data transmission is improved. Therefore, the UE needs to be able to identify the TRP/Beam when it needs to perform signaling and data transmission with the network side, so as to reduce resource overhead, increase system capacity, and improve transmission reliability.
  • the specific transmission unit information in the cell such as TRP/Beam information
  • TRP/Beam information is provided to the terminal through a random access response, and the terminal according to the information in subsequent transmission. Perform TRP/Beam identification and TRP/Beam level transmission.
  • the implementations from the terminal and the network side will be respectively explained.
  • the network side will describe the process of indicating TRP/Beam
  • the terminal side will explain the process of identifying TRP/Beam and random access and transmission, and then will give
  • the examples are implemented in conjunction with the two to better understand the implementation of the solution presented in the embodiments of the present application. Such a description does not mean that the two must be implemented together or must be implemented separately.
  • the terminal is implemented separately from the network side, it also solves the problem of the terminal side and the network side, and when the two are combined, Will get better technical results.
  • FIG. 7 is a schematic flowchart of a TRP indication method in a network-side next-generation wireless communication system, as shown in the figure, which may include:
  • Step 701 The network side determines a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell.
  • Step 702 Send a random access response to the terminal in the random access process, where the random access response carries information about the transmission point or the beam.
  • FIG. 8 is a schematic flowchart of a transmission method in a terminal-side next-generation wireless communication system, as shown in the figure, which may include:
  • Step 801 In a random access process, the terminal receives a random access response, where the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to the intra-terminal terminal.
  • Step 802 Determine the transmission point or beam according to the random access response.
  • Step 803 The terminal performs TRP/Beam level transmission according to the transmission point or the beam.
  • the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1.
  • the beam is directional in the implementation, and the uplink and downlink beams form a beam pair, respectively providing uplink and downlink transmission, and the network side receiving Msg1 transmits the random access response through the downlink beam through the uplink beam.
  • the message in the random access response may be an indication of an uplink/downlink beam pair, or may be an uplink beam or a downlink beam (beam information is mainly a beam ID), which depends on how it is used later.
  • the TRP/Beam information is used by the UE to send the TRP/Beam information corresponding to the Msg1 (preamble), and after receiving the Msg1 on the TRP/Beam, the gNB organizes the information into the random access response to the UE, and Other information sent to the UE, such as the uplink timing advance TA, the uplink resource allocation UL grant, and the like are sent together.
  • the UE may perform a subsequent random access procedure and subsequent data transmission on the TRP/Beam indicated by the random access response, that is, perform TRP/Beam transmission, and specifically perform TRP/Beam transmission. It is necessary to follow the transmission parameters and characteristics of the corresponding TRP or beam in the transmission point TRP transmission or in a certain beam transmission.
  • FIG. 9 is a schematic diagram of a manner of organizing a random access response message, and the random access response message organization manner may be as shown in FIG. 9.
  • FIG. 10 is a schematic diagram of a structure of a random access response PDU.
  • the constructed random access response PDU may be as shown in FIG. 10.
  • the bold part in the figure is new information introduced in the implementation, and the position of TRP/Beam info is not limited to the position in the figure.
  • the illustration is just an example. How many bytes of TRP/Beam info are used can be determined based on the amount of information of the information.
  • the transmission point or beam that provides signaling and/or data transmission to the terminal in the cell is all transmission points or beams in the cell.
  • the TRP/Beam information indicates all or part of the transmission point or beam information of the cell, such as indicating a location or sequence index that may receive a TRP/Beam-specific RS (reference signal).
  • TRP/Beam-specific RS reference signal
  • all UEs receive the same TRP/Beam information, and even the UE that does not initiate random access or the UE that fails to access the random access can receive the random access response and obtain the intra-cell TRP/Beam configuration.
  • the TRP/Beam information control unit can exist independently. After receiving all the TRP/Beam information of the cell, the UE detects the currently available TRP/Beam according to the indication, and uses the detected TRP/Beam to perform the subsequent random access procedure and subsequent data transmission.
  • FIG. 11 is a schematic diagram of a method for organizing a random access response message according to mode 2, and a random access response message organization manner may be as shown in FIG. 11.
  • FIG 12 is a schematic structural diagram of a mode 2 random access response PDU, which is constructed by referring to an LTE random access response format.
  • the random access response PDU can be as shown in FIG.
  • the bold part in the figure is the new information introduced in the implementation.
  • the position of TRP/Beam info is not limited to the position of the following figure, and T1 is used to indicate whether the subsequent is TRP/Beam info.
  • the illustration is just an example. How many bytes are used by the specific TRP/Beam info is determined based on the amount of information of the information.
  • the transmission point or beam that provides signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1.
  • an implicit indication is used.
  • the information about the transmission point or the beam carried by the random access response is sent together with the unique reference signal of the transmission point or the beam when the random access response is sent, and the unique reference signal is used. So that the terminal can determine the transmission point or beam after detecting the unique reference signal.
  • the TRP/Beam information is not explicitly carried in the random access response, and for the UE that sends the Msg1 (preamble) under the same TRP/Beam, the gNB can organize the random access responses of the UEs together. Sent with the TRP/Beam-specific reference signal. After detecting the TRP/Beam reference signal, the UE determines the TRP/Beam information, and uses the TRP/Beam information to perform the subsequent random access procedure and subsequent data transmission. In this way, the MAC RAR format and the content contained can be basically the same as LTE, but the reference signal sent with it can be newly designed.
  • carrying the unique reference signal may refer to scrambling the random access response by using an RA-RNTI, where the RA-RNTI is calculated by using a transmission point or a beam identifier that sends the Msg1 as an input parameter.
  • the calculation of the RA-RNTI may include: a TRP ID/Beam ID, or a time-frequency resource, etc.
  • an example of a TRP/Beam-specific reference signal is: the random access response in LTE is scrambled by the RA-RNTI,
  • the RA-RNTI is obtained by transmitting the time-frequency resource location of the Msg1. If the RA-RNTI is directly extended based on the RA-RNTI scrambling method, the RA-RNTI calculation factor may include the TRP/Beam number and the like.
  • the information of the transmission point or the beam carried in the random access response may include one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the TRP/Beam information content may include one or more of the following, and how to combine the TRP/Beam signaling and/or data transmission manners may be referred to:
  • the TRP/Beam level reference signal (such as BRS (Beam Reference Signal) information) may include reference signal sequence information, time-frequency resource location, reference power, and the like;
  • TRP/Beam ID which may be used to identify TRP, Beam, and related sequences (such as BRS, preamble code, etc.) Generation and identification;
  • the TRP/Beam-level random access resource PRACH (that is, the resource for accommodating the Msg1 preamble) information is different from the cell-level random access resource, and the TRP/Beam-level random access resource is invisible and unavailable to the idle UE;
  • the random access response is a random access response Msg2 sent by all or a part of the transmission points or beams in the cell.
  • Msg2 sent by all or a part of the transmission points or beams in the cell.
  • the terminal after the terminal obtains the cell-level random access resource configuration from the received system message, the terminal sends the Msg1 in the cell according to the random access resource configuration, where the system message is sent. It is sent by means of all or part of the transmission point or beam synchronous transmission of the cell.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the gNB indicates the TRP/Beam that the UE accesses in the random access response, and the specified TRP/Beam is used in the subsequent random access procedure.
  • the TRP/Beam information is used to send the TRP/Beam information corresponding to the Msg1 (preamble) to the UE.
  • FIG. 13 is a schematic diagram of a random access procedure according to the embodiment. As shown in the figure, the UE side may include the following steps:
  • Step 1300 Essential SI, including cell specific RACH configuration (SFNed transmission) (required system message, including cell-specific RACH configuration (sending in a single frequency network manner, that is, nodes participating in the transmission are synchronously transmitted with the same time-frequency resource; SFN: Single Frequency Network, single frequency network)).
  • the UE receives the system message, and obtains a cell-level random access resource configuration (including a PRACH resource, a preamble configuration, and the like), and the system message adopts a manner in which all or a part of the cell is transmitted or beam-synchronized.
  • a cell-level random access resource configuration including a PRACH resource, a preamble configuration, and the like
  • Step 1301 Msg1: Preamble.
  • the UE sends an Msg1 (preamble) in the cell according to the random access resource configuration.
  • Step 1302 Msg2: RAR (including TA, T-CRNTI and TRP/Beam information corresponding to the UE transmitting Msg1) (SFNed transmission).
  • the UE receives the random access response Msg2 sent by all or a part of the transmission points or the beam synchronization in the cell.
  • the format of the MAC RAR PDU is as shown in FIG. 9 and FIG. 10, and the TRP/Beam information is obtained from the random access response message.
  • Step 1303 Msg3: Scheduled transmission.
  • the UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the uplink resource allocation may be for a specific TRP/Beam.
  • Step 1304 Msg4: Contention Resolution (from individual TRP/Beam) (from a specific Sent on TRP/Beam).
  • the UE receives the contention resolution message Msg4 according to the TRP/Beam information indicated in the random access response, and the Msg4 is sent from the TRP/Beam accessed by the UE.
  • the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is received according to the information of the transmission point or the beam carried in the random access response when the specific resource allocation is for a specific transmission point or beam.
  • the competition resolves the message Msg4.
  • the network side allocates a resource for uplink transmission for a specific transmission point or beam in the Msg2, and sends a contention resolution message Msg4 on the transmission point or beam.
  • the network side adopts a process corresponding to the UE side, and details are not described herein again.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the gNB indicates the TRP/Beam that the UE accesses in the random access response, and the UE uses the designated TRP/Beam for subsequent transmission after completing the random access.
  • the TRP/Beam information is used to send the TRP/Beam information corresponding to the Msg1 (preamble) to the UE.
  • the second embodiment is to avoid interference caused by the UE using TRP/Beam resources incorrectly before the competition is resolved.
  • FIG. 14 is a schematic diagram of a random access procedure in Embodiment 2, as shown in the figure, the UE side may include the following steps:
  • Step 1400 Essential SI, including cell specific RACH configuration (SFNed transmission).
  • the UE receives the system message, and obtains a cell-level random access resource configuration (including a PRACH resource, a preamble configuration, and the like), and the system message adopts a manner in which all or a part of the cell is transmitted or beam-synchronized.
  • a cell-level random access resource configuration including a PRACH resource, a preamble configuration, and the like
  • Step 1401 Msg1: Preamble.
  • the UE sends an Msg1 (preamble) in the cell according to the random access resource configuration.
  • Step 1402 Msg2: RAR (including TA, T-CRNTI and TRP/Beam information corresponding to the UE transmitting Msg1) (SFNed transmission).
  • the UE receives the random access response Msg2 sent by all or a part of the transmission points or the beam synchronization in the cell.
  • the format of the MAC RAR PDU is as shown in FIG. 9 and FIG. 10, and the TRP/Beam information is obtained from the random access response message.
  • Step 1403 Msg3: Scheduled transmission.
  • the UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the TRP/Beam in the uplink transmission cell can be obtained.
  • Step 1404 Msg4: Contention Resolution (SFNed transmission).
  • the UE performs a contention resolution message Msg4 that is synchronously transmitted by all TRP/Beams in the receiving cell.
  • the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is a contention resolution message sent by all the transmission points or beams in the receiving cell for all the transmission points or beams.
  • the network side allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
  • the UE may use the TRP/Beam information obtained from the random access response Msg2 for subsequent signaling and data transmission.
  • the network side adopts a process corresponding to the UE side, and details are not described herein again.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the gNB indicates all the TRP/Beam information in the cell.
  • the UE detects the TRP/Beam according to all the TRP/Beam information in the cell, and completes the random access.
  • the TRP/Beam information is all or part of the transmission point or beam information indication of the cell.
  • the UE side may include the following steps:
  • Step 1500 Essential SI, including cell specific RACH configuration (SFNed transmission).
  • the UE receives the system message, and obtains a cell-level random access resource configuration (including a PRACH resource, a preamble configuration, and the like), and the system message adopts a manner in which all or a part of the cell is transmitted or beam-synchronized.
  • a cell-level random access resource configuration including a PRACH resource, a preamble configuration, and the like
  • Step 1501 Msg1: Preamble.
  • the UE sends an Msg1 (preamble) in the cell according to the cell-level random access resource configuration.
  • Step 1502 Msg2: RAR (including TA, T-CRNTI and all TRP/Beam information in the cell) (SFNed transmission).
  • the UE receives the random access response Msg2 sent by all or a part of the transmission points or the beam synchronization in the cell.
  • the format of the MAC RAR PDU is as shown in FIG. 11 and FIG. 12, and all the TRP/Beam information in the cell is obtained from the random access response message, and according to the Information detects the TRP/Beam you are in.
  • Step 1503 Msg3: Scheduled transmission.
  • the UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the uplink transmission may be sent only on the TRP/Beam detected by the UE, or by using the proprietary configuration of the TRP/Beam that the UE detects, such as using the TRP/ Beam-specific reference signal.
  • Step 1504 Msg4: Contention Resolution (from individual TRP/Beam).
  • the UE receives the contention resolution message Msg4 according to the detected TRP/Beam information, and the Msg4 is sent from the TRP/Beam accessed by the UE.
  • the network side adopts a process corresponding to the UE side, and details are not described herein again.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the gNB indicates all TRP/Beam information in the cell in the random access response, and does not initiate random access or
  • the UE that fails the random access detects the TRP/Beam located by the information, and performs random access on the determined TRP/Beam.
  • the TRP/Beam information is all or part of the transmission point or beam information indication of the cell.
  • FIG. 16 is a schematic diagram of a random access procedure in the fourth embodiment. As shown in the figure, the UE side may include the following steps:
  • Step 1600 Msg2: RAR (including all TRP/Beam information in the cell) (SFNed transmission).
  • the UE detects Msg2 according to the cell common information, and acquires all TRP/Beam information in the cell. among them:
  • a UE that does not initiate random access may set a certain window length to receive Msg2, obtain all TRP/Beam information in the cell, and detect the current TRP/Beam of the UE according to all TRP/Beam information in the cell. If the UE does not receive the random access response including the TRP/Beam information within the window length, the cell level Msg1 (preamble) is first initiated in the manner of the fourth embodiment.
  • the UE that fails the random access may use the TRP/Beam information in the cell carried in the received Msg2 to detect the current working TRP/Beam.
  • the terminal that does not initiate the random access obtains the information of all the transmission points or beams in the cell through the random access response message, detects the currently working transmission point or beam, or uses the received terminal after the random access failure. Information about all transmission points or beams in the cell, detecting the current working transmission point or beam; transmitting Msg1 on the detected transmission point or beam.
  • Step 1601 Msg1: Preamble.
  • the TRP/Beam information detected by the UE transmits Msg1 (preamble) on the TRP/Beam.
  • Step 1602 Msg2: RAR (including TA, T-CRNTI and all TRP/Beam information in the cell) (SFNed transmission).
  • the UE receives the random access response Msg2 sent by all or a part of the transmission points or beam synchronization in the cell.
  • the format of the MAC RAR PDU is shown in FIG. 11 and FIG. 12.
  • Another implementation manner is that random access response information carrying all TRP/Beam information in the cell is not multiplexed with the random access response of the UE that has distinguished the TRP/Beam, and randomized all TRP/Beam information in the cell is carried.
  • the access response information is synchronously transmitted on all TRP/Beams in the cell, and the random access response for the specific UE is sent only on the TRP/Beam corresponding to the Msg1 sent by the UE.
  • Step 1603 Msg3: Scheduled transmission.
  • the UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the uplink transmission may be sent only on the TRP/Beam detected by the UE, or by using the proprietary configuration of the TRP/Beam that the UE detects, such as using the TRP/ Beam-specific reference signal.
  • Step 1604 Msg4: Contention Resolution (from individual TRP/Beam).
  • the UE receives the contention resolution message Msg4 according to the detected TRP/Beam information, and the Msg4 is sent from the TRP/Beam accessed by the UE.
  • the network side adopts a process corresponding to the UE side, and details are not described herein again.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the random access response message is sent with a TRP/Beam-specific reference signal.
  • TRP/Beam information is implicitly carried.
  • FIG. 17 is a schematic diagram of a random access procedure in Embodiment 5, as shown in the figure, the UE side may include the following steps:
  • Step 1700 Essential SI, including cell specific RACH configuration (SFNed transmission).
  • the UE receives the system message, and obtains a cell-level random access resource configuration (including a PRACH resource, a preamble configuration, and the like), and the system message adopts a manner in which all or a part of the cell is transmitted or beam-synchronized.
  • a cell-level random access resource configuration including a PRACH resource, a preamble configuration, and the like
  • Step 1701 Msg1: Preamble.
  • the UE sends an Msg1 (preamble) in the cell according to the random access resource configuration.
  • Step 1702 Msg2: RAR (including TA, T-CRNTI and TRP/Beam information corresponding to the UE transmitting Msg1) (SFNed transmission).
  • the UE receives the random access response Msg2 sent by all or a part of the transmission points or the beam synchronization in the cell, and the random access response message carries the TRP/Beam related information, for example, the RA-RNTI pair Msg2 generated by using the TRP/Beam ID as an input. Scrambled. In this manner, only the Msg2 random access response of the Msg1 sent by the UE under the same TRP/Beam can be multiplexed and transmitted in one PDU.
  • Step 1703 Msg3: Scheduled transmission.
  • the UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the uplink resource allocation may be for a specific TRP/Beam.
  • Step 1704 Msg4: Contention Resolution (from individual TRP/Beam).
  • the UE receives the contention resolution message Msg4 according to the TRP/Beam information indicated in the random access response, and the Msg4 is sent from the TRP/Beam accessed by the UE.
  • the network side adopts a process corresponding to the UE side, and details are not described herein again.
  • the embodiment of the present application further provides a TRP indication device in a new generation wireless communication system, and a transmission device in a new generation wireless communication system, and the principle of solving the problem by these devices and a new generation
  • the TRP indication method in the wireless communication system and the transmission method in a new generation wireless communication system are similar. Therefore, the implementation of these devices can be referred to the implementation of the method, and the repeated description is not repeated.
  • FIG. 18 is a schematic structural diagram of a transmission point or a beam indicating apparatus in a new generation wireless communication system, as shown in the figure, which may include:
  • the network side determining module 1801 is configured to determine, at the network side, a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell;
  • the sending module 1802 is configured to send a random access response to the terminal in the random access process, where the random access response carries information about the transmission point or the beam Beam.
  • the network side determining module is further configured to determine a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell, where the transmission point of the Msg1 sent by the terminal is received, or corresponds to the uplink beam that receives the Msg1. Upstream and downlink beam pairs; or, all transmission points or beams in the cell.
  • the sending module is further configured to: when the random access response carries the information of the transmission point or the beam, when the random access response is sent, together with the unique reference signal of the transmission point or the beam Transmit, the unique reference signal is used to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
  • the sending module is further configured to: when carrying the specific reference signal, the random access response is scrambled by using an RA-RNTI, where the RA-RNTI calculates a transmission point or a beam identifier that sends the Msg1 as an input parameter. Obtained.
  • it further includes:
  • the network side receiving module is configured to receive the Msg1 sent by the terminal, where the Msg1 is the Msg1 sent in the cell according to the random access resource configuration after the terminal acquires the cell-level random access resource configuration from the received system message.
  • the system message is sent by the network side by means of all or part of the transmission point or beam synchronization transmission of the cell.
  • the sending module is further configured to allocate, for the terminal, the uplink transmission resource for the specific transmission point or the beam in the Msg2, and send the contention resolution message Msg4 on the transmission point or the beam; or, allocate the target for the terminal in the Msg2 All transmission points or uplink transmission resources of the beam, and the contention resolution message Msg4 is synchronously transmitted on all or a part of transmission points or beams in the cell.
  • the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • FIG. 19 is a schematic structural diagram of a transmission device in a new generation wireless communication system, as shown in the figure, which may include:
  • the terminal side receiving module 1901 is configured to: in the random access process, the terminal receives a random access response, where the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to the intra-cell terminal;
  • the terminal side determining module 1902 is configured to determine the transmission point or a beam according to the random access response
  • the transmission module 1903 is configured to perform TRP/Beam level transmission according to the transmission point or the beam.
  • it further includes:
  • the terminal side sending module is configured to: after the terminal acquires the cell-level random access resource configuration from the received system message, send the Msg1 in the cell according to the random access resource configuration, where the system message uses all or part of the transmission point of the cell. Or sent by means of beam synchronous transmission.
  • the terminal-side receiving module is further configured to send an uplink transmission on an uplink resource allocated by the terminal in the Msg2, where the uplink resource allocation is based on a transmission point or a beam carried in the random access response for a specific transmission point or beam.
  • the information receives the contention resolution message Msg4; or, the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is for all the transmission points or beams, and all the transmission points or beams in the receiving cell are synchronously transmitted.
  • the competition resolves the message Msg4.
  • the terminal side determining module is further configured to: when determining the transmission point or beam according to the random access response, according to a transmission point that is sent together with the random access response when the random access response is sent Or beam-specific reference signal detection is determined.
  • the terminal side determining module is further configured to: after the terminal that does not initiate the random access, obtain the information of all the transmission points or beams in the cell by using the random access response message, and detect the currently working transmission point or beam, or randomly The failed terminal uses the information of all the transmission points or beams in the received cell to detect the currently working transmission point or beam;
  • the terminal side sending module is configured to send Msg1 on the detected transmission point or beam.
  • the terminal side determining module further sends, when the random access response carries the information of the transmission point or the beam, the sent random access response and the unique reference signal of the transmission point or the beam.
  • the transmission point or beam is determined based on the detected unique reference signal.
  • the information of the transmission point or beam includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • FIG. 20 is a schematic structural diagram of a network side node, as shown in the figure, the network side node includes:
  • the processor 2000 is configured to read a program in the memory 2020 and perform the following processes:
  • the transceiver 2010 is configured to receive and transmit data under the control of the processor 2000, and performs the following processes:
  • a random access response is sent to the terminal, where the random access response carries information of the transmission point or the beam Beam.
  • the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal, or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1;
  • the random access response carries information about the transmission point or the beam, and is sent together with a unique reference signal of the transmission point or the beam when the random access response is sent, the unique reference signal
  • the method is configured to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
  • carrying the unique reference signal refers to scrambling the random access response by using an RA-RNTI, and the RA-RNTI is obtained by calculating a transmission point or a beam identifier that sends the Msg1 as an input parameter.
  • it further includes:
  • it further includes:
  • the terminal allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
  • the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 2000 and various circuits of memory represented by memory 2020.
  • the bus architecture also links various other circuits such as peripherals, voltage regulators, and power management circuits. They are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver 2010 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 2000 is responsible for managing the bus architecture and the usual processing, and the memory 2020 can store data used by the processor 2000 in performing operations.
  • the terminal includes:
  • the processor 2100 is configured to read a program in the memory 2120 and perform the following process:
  • the transceiver 2110 is configured to receive and send data under the control of the processor 2100, and performs the following processes:
  • a random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to a terminal in the cell;
  • TRP/Beam level transmission is performed according to the transmission point or beam.
  • it further includes:
  • the Msg1 After acquiring the cell-level random access resource configuration from the received system message, the Msg1 is sent in the cell according to the random access resource configuration, where the system message is sent by using all or part of the transmission point or beam synchronous transmission of the cell. .
  • it further includes:
  • the uplink transmission is sent on the uplink resource allocated in the Msg2, and the uplink resource allocation is a contention resolution message Msg4 sent by all transmission points or beams in the receiving cell for all transmission points or beams.
  • determining, according to the random access response, the transmission point or the beam is determined according to a transmission point or a beam-specific reference signal detected by the random access response when the random access response is sent. .
  • it further includes:
  • the terminal that does not initiate the random access obtains the information of all the transmission points or beams in the cell through the random access response message, and detects the currently working transmission point or beam, or the terminal that fails the random access uses all the received cells. Transmitting point or beam information to detect the current working transmission point or beam;
  • the random access response carries the information about the transmission point or the beam, and when the sent random access response is sent together with the unique reference signal of the transmission point or the beam, according to the detected unique feature
  • the reference signal determines the transmission point or beam.
  • the information of the transmission point or beam includes one or a combination of the following information:
  • TRP/Beam-level reference signal information TRP/Beam ID
  • TRP/Beam-level random access resource PRACH information TRP/Beam-level preamble sequence information.
  • the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 2100 and various circuits of memory represented by memory 2120.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 2110 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 2130 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 2100 is responsible for managing the bus architecture and general processing, and the memory 2120 can store data used by the processor 2100 in performing operations.
  • the specific transmission unit information in the cell such as TRP/Beam information
  • TRP/Beam information is provided to the terminal through a random access response, and the terminal is in subsequent transmission. Based on this information, TRP/Beam identification and TRP/Beam level transmission are performed.
  • Three TRP/Beam signaling and/or data transmission modes are also provided in the scheme; the random access procedure of the UE without TRP/Beam information and the existing TRP/Beam information UE is also distinguished.
  • the UE can perform TRP/Beam identification in the random access process, and the message in the random access process needs to be all TRP/ in the cell relative to the cell-level signaling and data transmission mode.
  • Beam synchronous transmission and reception has the following advantages: firstly increase the air interface resource overhead and reduce the system capacity; secondly, increase the power consumption of the network side and the terminal; thirdly, because the terminal cannot recognize the TRP/Beam, accurate channel estimation measurement and accuracy cannot be performed.
  • the power control is not conducive to the improvement of signaling and data transmission reliability. Therefore, the UE needs to be able to identify TRP/Beam when it needs to perform signaling and data transmission with the network side, so as to reduce resource overhead, increase system capacity, and improve transmission reliability.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the present application is a flowchart of a method, device (system), and computer program product according to an embodiment of the present application. And / or block diagram to describe. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

Disclosed by the present application are a method and apparatus for instructing and transmitting a transmission point or a beam of a new generation wireless communication system, comprising: a network side determines a transmission point or beam that provides signaling and/or data transmission for a terminal in a cell; a random access response is sent to the terminal in a random access process, the random access response carrying information of the transmission point or the beam. In the random access process, the terminal receives a random access response, the random access response carrying information of a transmission point or beam that provides signaling and/or data transmission for the terminal in the cell; and the terminal performs transmission reception point (TRP)/beam-level transmission according to the transmission point or the beam. Using the present application may reduce overhead of air interface resources and increase system capacity, reduce the power consumption of the network side and terminal, and may carry out accurate channel estimation and measurement as well as accurate power control, thereby improving the reliability of signaling and data transmission.

Description

新一代无线通信系统传输点或波束指示、传输方法及装置Transmission point or beam indication, transmission method and device of new generation wireless communication system
本申请要求在2016年11月2日提交中国专利局、申请号为201610952770.5、申请名称为“新一代无线通信系统传输点或波束指示、传输方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。This application claims priority to the Chinese Patent Application entitled "New Generation Wireless Communication System Transmission Point or Beam Indication, Transmission Method and Apparatus" submitted to the Chinese Patent Office on November 2, 2016, application number 201610952770.5, all of which apply The content is incorporated herein by reference.
技术领域Technical field
本申请涉及无线通信技术领域,特别涉及一种新一代无线通信系统的传输点或波束指示、传输方法及装置。The present application relates to the field of wireless communication technologies, and in particular, to a transmission point or beam indication and transmission method and apparatus of a new generation wireless communication system.
背景技术Background technique
图1为新一代无线通信系统架构示意图,在新一代无线通信系统(称为NG或5G系统)中引入的网络架构如图1所示。网络侧节点下一代基站(next generation NodeB,gNB)可以包括一个或多个传输点传输接收点/传输点(Transmission Reception Point,TRP),每个传输点可以通过不同的波束(Beam)与终端进行空口信令和数据传输。即,在一个gNB下的小区中,TRP是直接与终端进行空口传输的网络侧传输点,TRP与终端传输的方式是通过不同波束与终端进行通信,波束可以是全向(360度)或定向(小于360度,可以为几十或十几度)的。一个或多个TRP/beam可以同时为一个终端服务,进行信令和数据传输。Figure 1 is a schematic diagram of a new generation wireless communication system architecture. The network architecture introduced in a new generation wireless communication system (called NG or 5G system) is shown in Figure 1. The network side node next generation base station (gNB) may include one or more transmission points to transmit a reception point/transmission point (TRP), and each transmission point may be performed by using a different beam (Beam) and the terminal. Air interface signaling and data transmission. That is, in a cell under one gNB, the TRP is a network-side transmission point that directly performs air interface transmission with the terminal, and the TRP and the terminal transmit the manner by communicating with the terminal through different beams, and the beam may be omnidirectional (360 degrees) or oriented. (less than 360 degrees, can be tens or ten degrees). One or more TRP/beams can simultaneously serve one terminal for signaling and data transmission.
对于驻留在小区不需要与网络侧进行信令和数据交互的用户设备(User Equipment,UE)(一般为idle UE(空闲UE),也可能是inactive UE(非激活UE)),一般只需要接收包含一个或多个TRP/Beam的小区级信息和进行小区级测量。小区级信息,如小区级系统消息,是通过小区内所有或一部分传输点或波束同步发送的;小区级测量的参考信号,也是在小区内所有或一部分传输点或波束上同步发送的。这种设计保证不需要进行数据传输的UE只需识别小区,而不用准确识别TRP/Beam,避免不必要的信令开销,如在TRP/Beam之间移动的信令开销。For a user equipment (UE) (usually an idle UE) or an inactive UE (inactive UE) that does not need to perform signaling and data interaction with the network side, it is generally only required. Receive cell level information including one or more TRP/Beams and perform cell level measurements. The cell-level information, such as the cell-level system message, is sent through all or a part of the transmission points or beam synchronization in the cell; the reference signal measured at the cell level is also synchronously transmitted on all or a part of the transmission points or beams in the cell. This design ensures that UEs that do not need to transmit data only need to identify the cell without accurately identifying the TRP/Beam, avoiding unnecessary signaling overhead, such as signaling overhead moving between TRP/Beam.
但现有技术至少存在以下之一的不足:在特定的情况下,这种方式会增加空口资源开销,降低系统容量;或者增加网络侧和终端耗电;或者由于终端不能识别TRP/Beam,不能进行精确的信道估计测量和精准的功控,不利于信令和数据传输可靠性的提高。However, the prior art has at least one of the following disadvantages: in a specific case, this method may increase the air interface resource overhead and reduce the system capacity; or increase the power consumption of the network side and the terminal; or because the terminal cannot recognize the TRP/Beam, Accurate channel estimation measurement and precise power control are not conducive to the improvement of signaling and data transmission reliability.
发明内容Summary of the invention
本申请提供了一种新一代无线通信系统的传输点或波束指示、传输方法及装置,用以使得UE在需要与网络侧进行信令和数据传输的时候能识别TRP/Beam,从而在后续的传输过程中能降低资源开销,增加系统容量,提高传输可靠性。The present application provides a transmission point or beam indication, transmission method and apparatus for a new generation wireless communication system, so that the UE can identify the TRP/Beam when it needs to perform signaling and data transmission with the network side, thereby The transmission process can reduce resource overhead, increase system capacity, and improve transmission reliability.
本申请实施例中提供了一种新一代无线通信系统中的传输点或波束指示方法,包括:A transmission point or beam indication method in a new generation wireless communication system is provided in the embodiment of the present application, including:
网络侧确定小区内向终端提供信令和/或数据传输的传输点或波束;The network side determines a transmission point or beam that provides signaling and/or data transmission to the terminal in the cell;
在随机接入过程中,向终端发送随机接入响应,所述随机接入响应中携带所述传输点或波束Beam的信息。In the random access process, a random access response is sent to the terminal, where the random access response carries information of the transmission point or the beam Beam.
实施中,小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点,或与收到Msg1的上行波束相对应的上下行波束对;In the implementation, the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal, or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1;
或,是小区内所有的传输点或波束。Or, it is all transmission points or beams in the cell.
实施中,所述随机接入响应携带有所述传输点或波束的信息,是在发送所述随机接入响应时,与该传输点或波束的特有的参考信号一起发送,该特有的参考信号用以使终端在检测到该特有的参考信号后能确定所述传输点或波束。In an implementation, the random access response carries information about the transmission point or the beam, and is sent together with a unique reference signal of the transmission point or the beam when the random access response is sent, the unique reference signal The method is configured to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
实施中,携带所述特有的参考信号是指通过RA-RNTI加扰所述随机接入响应,该RA-RNTI是将发送Msg1的传输点或波束标识作为输入参数计算获取的。In the implementation, carrying the unique reference signal refers to scrambling the random access response by using an RA-RNTI, and the RA-RNTI is obtained by calculating a transmission point or a beam identifier that sends the Msg1 as an input parameter.
实施中,进一步包括:In implementation, it further includes:
接收终端发送的Msg1,所述Msg1是在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送的Msg1,所述系统消息是网络侧采用小区所有或一部分传输点或波束同步发送的方式发送的。Receiving the Msg1 sent by the terminal, where the Msg1 is sent by the terminal according to the random access resource configuration after the terminal obtains the cell-level random access resource configuration from the received system message, where the system message is adopted by the network side. Transmitted by all or part of the transmission point or beam synchronous transmission of the cell.
实施中,进一步包括:In implementation, it further includes:
为终端在Msg2中分配针对特定的传输点或波束的上行传输的资源,并在该传输点或波束上发送竞争解决消息Msg4;Allocating a resource for uplink transmission of a specific transmission point or beam in the Msg2, and transmitting a contention resolution message Msg4 on the transmission point or beam;
或者,为终端在Msg2中分配针对所有的传输点或波束的上行传输资源,并在小区内所有或一部分传输点或波束上同步发送竞争解决消息Msg4。Alternatively, the terminal allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
实施中,所述随机接入响应中携带的传输点或波束的信息包括以下信息之一或者其组合:In an implementation, the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
本申请实施例中提供了一种新一代无线通信系统中的传输方法,包括: A transmission method in a new generation wireless communication system is provided in the embodiment of the present application, including:
在随机接入过程中,终端接收随机接入响应,所述随机接入响应携带有小区内向终端提供信令和/或数据传输的传输点或波束的信息;In the random access process, the terminal receives a random access response, and the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to the intra-cell terminal;
根据所述随机接入响应确定所述传输点或波束;Determining the transmission point or beam according to the random access response;
终端根据所述传输点或波束进行TRP/Beam级传输。The terminal performs TRP/Beam level transmission according to the transmission point or beam.
实施中,进一步包括:In implementation, it further includes:
在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送Msg1,所述系统消息是采用小区所有或一部分传输点或波束同步发送的方式发送的。After the terminal obtains the cell-level random access resource configuration from the received system message, the Msg1 is sent in the cell according to the random access resource configuration, and the system message is sent by using all or part of the transmission point or beam synchronization of the cell. of.
实施中,进一步包括:In implementation, it further includes:
在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对特定的传输点或波束时,根据随机接入响应中携带的传输点或波束的信息接收竞争解决消息Msg4;Transmitting an uplink transmission on the uplink resource allocated by the terminal in the Msg2, where the uplink resource allocation is for a specific transmission point or beam, and receiving the contention resolution message Msg4 according to the information of the transmission point or the beam carried in the random access response;
或者,在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对所有的传输点或波束时,接收小区内所有的传输点或波束同步发送的竞争解决消息Msg4。Alternatively, the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is a contention resolution message Msg4 sent by all transmission points or beams in the receiving cell for all transmission points or beams.
实施中,根据所述随机接入响应确定所述传输点或波束,是根据在发送所述随机接入响应时,与该随机接入响应一起发送的传输点或波束特有的参考信号检测确定的。In an implementation, determining, according to the random access response, the transmission point or the beam is determined according to a transmission point or a beam-specific reference signal detected by the random access response when the random access response is sent. .
实施中,进一步包括:In implementation, it further includes:
未发起随机接入的终端通过随机接入响应消息,获取小区内全部传输点或波束的信息,检测当前工作的传输点或波束,或,随机接入失败的终端使用已接收到的小区内全部传输点或波束的信息,检测当前工作的传输点或波束;The terminal that does not initiate the random access obtains the information of all the transmission points or beams in the cell through the random access response message, and detects the currently working transmission point or beam, or the terminal that fails the random access uses all the received cells. Transmitting point or beam information to detect the current working transmission point or beam;
在检测出的传输点或波束上发送Msg1。Send Msg1 on the detected transmission point or beam.
实施中,所述随机接入响应携带有所述传输点或波束的信息,是在发送的随机接入响应与该传输点或波束的特有的参考信号一起发送的时,根据检测到的该特有的参考信号确定所述传输点或波束。In an implementation, the random access response carries the information about the transmission point or the beam, and when the sent random access response is sent together with the unique reference signal of the transmission point or the beam, according to the detected unique feature The reference signal determines the transmission point or beam.
实施中,所述传输点或波束的信息包括以下信息之一或者其组合:In implementation, the information of the transmission point or beam includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
本申请实施例中提供了一种新一代无线通信系统中的传输点或波束指示装置,包括:A transmission point or beam indicating device in a new generation wireless communication system is provided in the embodiment of the present application, including:
网络侧确定模块,用于在网络侧确定小区内向终端提供信令和/或数据传输的传输点或波束; a network side determining module, configured to determine, at the network side, a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell;
发送模块,用于在随机接入过程中,向终端发送随机接入响应,所述随机接入响应中携带所述传输点或波束Beam的信息。And a sending module, configured to send a random access response to the terminal in the random access process, where the random access response carries information about the transmission point or the beam Beam.
实施中,网络侧确定模块进一步用于确定小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点,或与收到Msg1的上行波束相对应的上下行波束对;或,是小区内所有的传输点或波束。In an implementation, the network side determining module is further configured to determine a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell, where the transmission point of the Msg1 sent by the terminal is received, or corresponds to the uplink beam that receives the Msg1. Upstream and downlink beam pairs; or, all transmission points or beams in the cell.
实施中,发送模块进一步用于在所述随机接入响应携带有所述传输点或波束的信息时,是在发送所述随机接入响应时,与该传输点或波束的特有的参考信号一起发送,该特有的参考信号用以使终端在检测到该特有的参考信号后能确定所述传输点或波束。In an implementation, the sending module is further configured to: when the random access response carries the information of the transmission point or the beam, when the random access response is sent, together with the unique reference signal of the transmission point or the beam Transmit, the unique reference signal is used to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
实施中,发送模块进一步用于在携带所述特有的参考信号时,是通过RA-RNTI加扰所述随机接入响应,该RA-RNTI是将发送Msg1的传输点或波束标识作为输入参数计算获取的。In an implementation, the sending module is further configured to: when carrying the specific reference signal, the random access response is scrambled by using an RA-RNTI, where the RA-RNTI calculates a transmission point or a beam identifier that sends the Msg1 as an input parameter. Obtained.
实施中,进一步包括:In implementation, it further includes:
网络侧接收模块,用于接收终端发送的Msg1,所述Msg1是在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送的Msg1,所述系统消息是网络侧采用小区所有或一部分传输点或波束同步发送的方式发送的。The network side receiving module is configured to receive the Msg1 sent by the terminal, where the Msg1 is the Msg1 sent in the cell according to the random access resource configuration after the terminal acquires the cell-level random access resource configuration from the received system message. The system message is sent by the network side by means of all or part of the transmission point or beam synchronization transmission of the cell.
实施中,发送模块进一步用于为终端在Msg2中分配针对特定的传输点或波束的上行传输的资源,并在该传输点或波束上发送竞争解决消息Msg4;或者,为终端在Msg2中分配针对所有的传输点或波束的上行传输资源,并在小区内所有或一部分传输点或波束上同步发送竞争解决消息Msg4。In an implementation, the sending module is further configured to allocate, for the terminal, the uplink transmission resource for the specific transmission point or the beam in the Msg2, and send the contention resolution message Msg4 on the transmission point or the beam; or, allocate the target for the terminal in the Msg2 All transmission points or uplink transmission resources of the beam, and the contention resolution message Msg4 is synchronously transmitted on all or a part of transmission points or beams in the cell.
实施中,所述随机接入响应中携带的传输点或波束的信息包括以下信息之一或者其组合:In an implementation, the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
本申请实施例中提供了一种新一代无线通信系统中的传输装置,包括:A transmission device in a new generation wireless communication system is provided in the embodiment of the present application, including:
终端侧接收模块,用于在随机接入过程中,终端接收随机接入响应,所述随机接入响应携带有小区内向终端提供信令和/或数据传输的传输点或波束的信息;a terminal-side receiving module, configured to receive, by the terminal, a random access response, where the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to the intra-cell terminal;
终端侧确定模块,用于根据所述随机接入响应确定所述传输点或波束;a terminal side determining module, configured to determine the transmission point or a beam according to the random access response;
传输模块,用于终端根据所述传输点或波束进行TRP/Beam级传输。And a transmission module, configured to perform TRP/Beam level transmission according to the transmission point or the beam.
实施中,进一步包括: In implementation, it further includes:
终端侧发送模块,用于在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送Msg1,所述系统消息是采用小区所有或一部分传输点或波束同步发送的方式发送的。The terminal side sending module is configured to: after the terminal acquires the cell-level random access resource configuration from the received system message, send the Msg1 in the cell according to the random access resource configuration, where the system message uses all or part of the transmission point of the cell. Or sent by means of beam synchronous transmission.
实施中,终端侧接收模块进一步用于在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对特定的传输点或波束时,根据随机接入响应中携带的传输点或波束的信息接收竞争解决消息Msg4;或者,在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对所有的传输点或波束时,接收小区内所有的传输点或波束同步发送的竞争解决消息Msg4。In an implementation, the terminal-side receiving module is further configured to send an uplink transmission on an uplink resource allocated by the terminal in the Msg2, where the uplink resource allocation is based on a transmission point or a beam carried in the random access response for a specific transmission point or beam. The information receives the contention resolution message Msg4; or, the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is for all the transmission points or beams, and all the transmission points or beams in the receiving cell are synchronously transmitted. The competition resolves the message Msg4.
实施中,终端侧确定模块进一步用于在根据所述随机接入响应确定所述传输点或波束时,是根据在发送所述随机接入响应时,与该随机接入响应一起发送的传输点或波束特有的参考信号检测确定的。In an implementation, the terminal side determining module is further configured to: when determining the transmission point or beam according to the random access response, according to a transmission point that is sent together with the random access response when the random access response is sent Or beam-specific reference signal detection is determined.
实施中,终端侧确定模块进一步用于在未发起随机接入的终端通过随机接入响应消息,获取小区内全部传输点或波束的信息,检测当前工作的传输点或波束,或,在随机接入失败的终端使用已接收到的小区内全部传输点或波束的信息,检测当前工作的传输点或波束;In the implementation, the terminal side determining module is further configured to: after the terminal that does not initiate the random access, obtain the information of all the transmission points or beams in the cell by using the random access response message, and detect the currently working transmission point or beam, or randomly The failed terminal uses the information of all the transmission points or beams in the received cell to detect the currently working transmission point or beam;
进一步包括:Further includes:
终端侧发送模块,用于在检测出的传输点或波束上发送Msg1。The terminal side sending module is configured to send Msg1 on the detected transmission point or beam.
实施中,终端侧确定模块进一步在确定所述随机接入响应携带有所述传输点或波束的信息时,是在发送的随机接入响应与该传输点或波束的特有的参考信号一起发送的时,根据检测到的该特有的参考信号确定所述传输点或波束。In an implementation, the terminal side determining module further sends, when the random access response carries the information of the transmission point or the beam, the sent random access response and the unique reference signal of the transmission point or the beam. The transmission point or beam is determined based on the detected unique reference signal.
实施中,所述传输点或波束的信息包括以下信息之一或者其组合:In implementation, the information of the transmission point or beam includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
本申请实施例中提供了一种新一代无线通信系统中的传输点或波束指示装置,包括:A transmission point or beam indicating device in a new generation wireless communication system is provided in the embodiment of the present application, including:
处理器,用于读取存储器中的程序,执行下列过程:A processor for reading a program in the memory, performing the following process:
在确定小区内向终端提供信令和/或数据传输的传输点或波束;Determining a transmission point or beam that provides signaling and/or data transmission to the terminal within the cell;
收发机,用于在处理器的控制下接收和发送数据,执行下列过程:A transceiver for receiving and transmitting data under the control of a processor, performing the following processes:
在随机接入过程中,向终端发送随机接入响应,所述随机接入响应中携带所述传输点或波束Beam的信息。 In the random access process, a random access response is sent to the terminal, where the random access response carries information of the transmission point or the beam Beam.
实施中,小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点,或与收到Msg1的上行波束相对应的上下行波束对;In the implementation, the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal, or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1;
或,是小区内所有的传输点或波束。Or, it is all transmission points or beams in the cell.
实施中,所述随机接入响应携带有所述传输点或波束的信息,是在发送所述随机接入响应时,与该传输点或波束的特有的参考信号一起发送,该特有的参考信号用以使终端在检测到该特有的参考信号后能确定所述传输点或波束。In an implementation, the random access response carries information about the transmission point or the beam, and is sent together with a unique reference signal of the transmission point or the beam when the random access response is sent, the unique reference signal The method is configured to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
实施中,携带所述特有的参考信号是指通过RA-RNTI加扰所述随机接入响应,该RA-RNTI是将发送Msg1的传输点或波束标识作为输入参数计算获取的。In the implementation, carrying the unique reference signal refers to scrambling the random access response by using an RA-RNTI, and the RA-RNTI is obtained by calculating a transmission point or a beam identifier that sends the Msg1 as an input parameter.
实施中,进一步包括:In implementation, it further includes:
接收终端发送的Msg1,所述Msg1是在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送的Msg1,所述系统消息是网络侧采用小区所有或一部分传输点或波束同步发送的方式发送的。Receiving the Msg1 sent by the terminal, where the Msg1 is sent by the terminal according to the random access resource configuration after the terminal obtains the cell-level random access resource configuration from the received system message, where the system message is adopted by the network side. Transmitted by all or part of the transmission point or beam synchronous transmission of the cell.
实施中,进一步包括:In implementation, it further includes:
为终端在Msg2中分配针对特定的传输点或波束的上行传输的资源,并在该传输点或波束上发送竞争解决消息Msg4;Allocating a resource for uplink transmission of a specific transmission point or beam in the Msg2, and transmitting a contention resolution message Msg4 on the transmission point or beam;
或者,为终端在Msg2中分配针对所有的传输点或波束的上行传输资源,并在小区内所有或一部分传输点或波束上同步发送竞争解决消息Msg4。Alternatively, the terminal allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
实施中,所述随机接入响应中携带的传输点或波束的信息包括以下信息之一或者其组合:In an implementation, the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
本申请实施例中提供了一种新一代无线通信系统中的传输装置,包括:A transmission device in a new generation wireless communication system is provided in the embodiment of the present application, including:
处理器,用于读取存储器中的程序,执行下列过程:A processor for reading a program in the memory, performing the following process:
根据随机接入响应确定所述传输点或波束;Determining the transmission point or beam according to a random access response;
收发机,用于在处理器的控制下接收和发送数据,执行下列过程:A transceiver for receiving and transmitting data under the control of a processor, performing the following processes:
在随机接入过程中,接收随机接入响应,所述随机接入响应携带有小区内向所述传输装置提供信令和/或数据传输的传输点或波束的信息;Receiving, in a random access procedure, a random access response, the random access response carrying information of a transmission point or a beam that provides signaling and/or data transmission to the transmitting device in the cell;
根据所述传输点或波束进行TRP/Beam级传输。TRP/Beam level transmission is performed according to the transmission point or beam.
实施中,进一步包括: In implementation, it further includes:
在从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送Msg1,所述系统消息是采用小区所有或一部分传输点或波束同步发送的方式发送的。After acquiring the cell-level random access resource configuration from the received system message, the Msg1 is sent in the cell according to the random access resource configuration, where the system message is sent by using all or part of the transmission point or beam synchronous transmission of the cell. .
实施中,进一步包括:In implementation, it further includes:
在在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对特定的传输点或波束时,根据随机接入响应中携带的传输点或波束的信息接收竞争解决消息Msg4;Sending an uplink transmission on the uplink resource allocated in the Msg2, where the uplink resource allocation is for a specific transmission point or beam, and receiving the contention resolution message Msg4 according to the information of the transmission point or the beam carried in the random access response;
或者,在在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对所有的传输点或波束时,接收小区内所有的传输点或波束同步发送的竞争解决消息Msg4。Alternatively, the uplink transmission is sent on the uplink resource allocated in the Msg2, and the uplink resource allocation is a contention resolution message Msg4 sent by all transmission points or beams in the receiving cell for all transmission points or beams.
实施中,根据所述随机接入响应确定所述传输点或波束,是根据在发送所述随机接入响应时,与该随机接入响应一起发送的传输点或波束特有的参考信号检测确定的。In an implementation, determining, according to the random access response, the transmission point or the beam is determined according to a transmission point or a beam-specific reference signal detected by the random access response when the random access response is sent. .
实施中,进一步包括:In implementation, it further includes:
未发起随机接入的所述传输装置通过随机接入响应消息,获取小区内全部传输点或波束的信息,检测当前工作的传输点或波束,或,随机接入失败的所述传输装置使用已接收到的小区内全部传输点或波束的信息,检测当前工作的传输点或波束;The transmitting device that does not initiate the random access obtains information of all transmission points or beams in the cell through the random access response message, detects the currently working transmission point or beam, or uses the transmission device that fails the random access. Receiving information of all transmission points or beams in the received cell, and detecting a currently working transmission point or beam;
在检测出的传输点或波束上发送Msg1。Send Msg1 on the detected transmission point or beam.
实施中,所述随机接入响应携带有所述传输点或波束的信息,是在发送的随机接入响应与该传输点或波束的特有的参考信号一起发送的时,根据检测到的该特有的参考信号确定所述传输点或波束。In an implementation, the random access response carries the information about the transmission point or the beam, and when the sent random access response is sent together with the unique reference signal of the transmission point or the beam, according to the detected unique feature The reference signal determines the transmission point or beam.
实施中,所述传输点或波束的信息包括以下信息之一或者其组合:In implementation, the information of the transmission point or beam includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
本申请有益效果如下:The beneficial effects of the application are as follows:
在本申请实施例提供的技术方案中,在网络侧确定小区内向终端提供信令和/或数据传输的传输点或波束后,即在随机接入过程中,向终端反馈随机接入响应,并在随机接入响应携带有所述传输点或波束的信息,从而使得终端侧能够在需要与网络侧进行信令和数据传输的时候识别出TRP/Beam。In the technical solution provided by the embodiment of the present application, after the network side determines that the transmission point or the beam of the signaling and/or data transmission is provided to the terminal in the cell, that is, in the random access process, the random access response is fed back to the terminal, and The random access response carries information of the transmission point or beam, so that the terminal side can identify the TRP/Beam when it is required to perform signaling and data transmission with the network side.
在终端侧则根据随机接入响应确定所述传输点或波束,并在后续使用所述传输点或波束进行TRP/Beam级传输。The transmission point or beam is determined according to the random access response on the terminal side, and the TRP/Beam level transmission is performed subsequently using the transmission point or beam.
由于在后续的Msg3、Msg4,或者之后的信令和数据传输时,终端能够根据网络侧在 Msg2中携带的信息识别TRP/Beam,并采用该TRP/Beam进行后续的Msg3、Msg4,或者之后的信令和数据传输,也因此就不再需要所有或多个小区内的TRP/Beam采用同步方式对UE进行信令和数据传输,从而减少空口资源开销,增加系统容量;减少网络侧和终端耗电;还由于终端能识别TRP/Beam,从而能进行精确的信道估计测量和精准的功控,有利于信令和数据传输可靠性的提高。Due to the subsequent Msg3, Msg4, or subsequent signaling and data transmission, the terminal can be based on the network side. The information carried in Msg2 identifies TRP/Beam, and uses the TRP/Beam for subsequent Msg3, Msg4, or subsequent signaling and data transmission, and thus eliminates the need for synchronization of TRP/Beam in all or multiple cells. The method performs signaling and data transmission on the UE, thereby reducing air interface resource overhead, increasing system capacity, reducing power consumption of the network side and the terminal, and also enabling the terminal to identify the TRP/Beam, thereby enabling accurate channel estimation measurement and accurate power control. It is beneficial to improve the reliability of signaling and data transmission.
附图说明DRAWINGS
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:
图1为背景技术中新一代无线通信系统架构示意图;1 is a schematic diagram showing the architecture of a new generation wireless communication system in the background art;
图2为本申请实施例中竞争随机接入过程示意图;2 is a schematic diagram of a process of competing random access in an embodiment of the present application;
图3为本申请实施例中竞争随机接入过程示意图;3 is a schematic diagram of a process of competing random access in an embodiment of the present application;
图4为本申请实施例中MAC RAR格式示意图;4 is a schematic diagram of a MAC RAR format in an embodiment of the present application;
图5为本申请实施例中回退指示头格式示意图;FIG. 5 is a schematic diagram of a format of a back indication pointer in the embodiment of the present application;
图6为本申请实施例中随机接入响应消息格式示意图;6 is a schematic diagram of a format of a random access response message in an embodiment of the present application;
图7为本申请实施例中网络侧新一代无线通信系统中的TRP指示方法实施流程示意图;FIG. 7 is a schematic flowchart of a method for implementing a TRP indication method in a network-side next-generation wireless communication system according to an embodiment of the present application;
图8为本申请实施例中终端侧新一代无线通信系统中的传输方法实施流程示意图;FIG. 8 is a schematic flowchart of a transmission method in a terminal-side next-generation wireless communication system according to an embodiment of the present application;
图9为本申请实施例中方式一随机接入响应消息组织方式示意图;FIG. 9 is a schematic diagram of a manner of organizing a random access response message according to an embodiment of the present application;
图10为本申请实施例中方式一随机接入响应PDU结构示意图;FIG. 10 is a schematic structural diagram of a mode random access response PDU according to an embodiment of the present application;
图11为本申请实施例中方式二随机接入响应消息组织方式示意图;FIG. 11 is a schematic diagram of a method for organizing a random access response message according to an embodiment of the present application;
图12为本申请实施例中方式二随机接入响应PDU结构示意图;FIG. 12 is a schematic structural diagram of a mode 2 random access response PDU according to an embodiment of the present application;
图13为本申请实施例一随机接入过程示意图;FIG. 13 is a schematic diagram of a random access procedure according to an embodiment of the present application; FIG.
图14为本申请实施例二随机接入过程示意图;14 is a schematic diagram of a random access procedure according to Embodiment 2 of the present application;
图15为本申请实施例三随机接入过程示意图;15 is a schematic diagram of a random access procedure according to Embodiment 3 of the present application;
图16为本申请实施例四随机接入过程示意图;16 is a schematic diagram of a random access procedure according to Embodiment 4 of the present application;
图17为本申请实施例五随机接入过程示意图;17 is a schematic diagram of a random access procedure according to Embodiment 5 of the present application;
图18为本申请实施例中新一代无线通信系统中的传输点或波束指示装置结构示意图;18 is a schematic structural diagram of a transmission point or a beam indicating apparatus in a new generation wireless communication system according to an embodiment of the present application;
图19为本申请实施例中新一代无线通信系统中的传输装置结构示意图;19 is a schematic structural diagram of a transmission device in a new generation wireless communication system according to an embodiment of the present application;
图20为本申请实施例中网络侧节点结构示意图;20 is a schematic structural diagram of a network side node in an embodiment of the present application;
图21为本申请实施例中终端结构示意图。 FIG. 21 is a schematic structural diagram of a terminal in an embodiment of the present application.
具体实施方式detailed description
发明人在发明过程中注意到:The inventor noticed during the invention:
对于与网络侧进行信令和数据交互的UE(一般为连接态UE,也可能是inactive UE),如果采用长期演进(Long Term Evolution,LTE)中的小区级信令和数据传输的方式,即UE不识别TRP/Beam,UE与小区的信令交互需要通过小区内全部TRP/Beam来完成,具体来说,给UE的下行数据传输需要小区内全部或很多个TRP/Beam同步发送,上行数据传输需要小区内全部或很多个TRP/Beam同步接收。这种方式一来增加空口资源开销,降低系统容量;二来增加网络侧和终端耗电;三来由于终端不能识别TRP/Beam,不能进行精确的信道估计测量和精准的功控,不利于信令和数据传输可靠性的提高。For a UE that performs signaling and data interaction with the network side (generally a connected UE or an inactive UE), if cell-level signaling and data transmission in Long Term Evolution (LTE) are adopted, The UE does not recognize the TRP/Beam, and the signaling interaction between the UE and the cell needs to be completed by all TRP/Beam in the cell. Specifically, the downlink data transmission to the UE requires all or a plurality of TRP/Beam simultaneous transmissions in the cell, and uplink data. The transmission requires all or a large number of TRP/Beam simultaneous receptions within the cell. This method increases the air interface resource overhead and reduces the system capacity. Secondly, it increases the power consumption of the network side and the terminal. Thirdly, because the terminal cannot identify the TRP/Beam, accurate channel estimation measurement and accurate power control cannot be performed, which is not conducive to the letter. Increased reliability of data transmission and transmission.
下面具体说明随机接入过程和带来的问题如下:The following describes the random access process and the following problems:
LTE系统的随机接入分为竞争随机接入和非竞争随机接入两种。其过程分别如下:The random access of the LTE system is divided into two types: contention random access and non-contention random access. The process is as follows:
竞争随机接入用于六个目的:终端初始接入;无线资源控制(Radio Resource Control,RRC)连接重建;切换;非同步状态下RRC连接态时下行数据到达;RRC连接态时上行数据到达;RRC连接态时的定位。Competitive random access is used for six purposes: terminal initial access; radio resource control (RRC) connection reestablishment; handover; downlink data arrival in RRC connected state in non-synchronized state; uplink data arrival in RRC connected state; Positioning in the RRC connected state.
图2为竞争随机接入过程示意图,如图2所示,主要分为四步:FIG. 2 is a schematic diagram of a competitive random access process, as shown in FIG. 2, which is mainly divided into four steps:
Msg1:UE选择随机接入随机接入前导码(preamble)和物理随机接入信道(Physical Random Access Channel,PRACH)资源并利用该PRACH资源向基站发送所选的随机接入preamble。Msg1: The UE selects a random access preamble and a physical random access channel (PRACH) resource and uses the PRACH resource to send the selected random access preamble to the base station.
Msg2:基站接收到preamble,计算定时提前量(Time Alignment,TA),并向UE发送随机接入响应,随机接入响应中包含该定时提前量信息和针对Msg3的上行调度信息(ULgrant),以及网络侧分配的临时小区无线网络临时标识(Cell-Radio Network Temporary Identifier,C-RNTI)。承载Msg2调度消息的物理下行控制信道(physical downlink control channel,PDCCH)用随机接入无线网络临时识别(Random Access-Radio Network Temporary Identity,RA-RNTI)加扰,RA-RNTI在10ms窗内与发送Msg1的时频资源唯一对应;另外Msg2中还携带preamble ID,UE通过RA-RNTI和preamble ID确定该Msg2是与其发送的Msg1对应的。Msg2: The base station receives the preamble, calculates a timing advance (TA), and sends a random access response to the UE, where the random access response includes the timing advance information and uplink scheduling information (ULgrant) for Msg3, and A Cell-Radio Network Temporary Identifier (C-RNTI) assigned by the network side. The physical downlink control channel (PDCCH) carrying the Msg2 scheduling message is scrambled by Random Access-Radio Network Temporary Identity (RA-RNTI), and the RA-RNTI is transmitted and transmitted within 10 ms. The time-frequency resource of the Msg1 uniquely corresponds; in addition, the Msg2 carries the preamble ID, and the UE determines, by the RA-RNTI and the preamble ID, that the Msg2 corresponds to the Msg1 sent by the UE.
Msg3:Scheduled transmission(调度传输),UE在Msg2指定的UL grant上发送上行传输,不同随机接入原因Msg3上行传输的内容不同,比如对于初始接入,Msg3传输的是RRC连接建立请求。Msg3: Scheduled transmission. The UE sends an uplink transmission on the UL grant specified by Msg2. The content of the Msg3 uplink transmission is different for different random access reasons. For example, for initial access, Msg3 transmits an RRC connection establishment request.
Msg4:Contention Resolution(竞争解决)消息,UE根据Msg4可以判断随机接入是否成功。对于初始接入UE,竞争解决成功后临时C-RNTI自动转化为UE在该小区的唯一 UE标识C-RNTI。Msg4: Contention Resolution message, the UE can judge whether the random access is successful according to Msg4. For the initial access UE, the temporary C-RNTI is automatically converted to the UE's unique in the cell after the contention resolution is successful. The UE identifies the C-RNTI.
图3为竞争随机接入过程示意图,非竞争随机接入用于切换、下行数据到达、定位和获取上行定时。如图2所示,主要分为三步:FIG. 3 is a schematic diagram of a competitive random access procedure, where non-contention random access is used for handover, downlink data arrival, location, and acquisition of uplink timing. As shown in Figure 2, it is mainly divided into three steps:
Msg0:基站向UE分配用于非竞争随机接入的专用preamble以及随机接入使用的PRACH资源。Msg0: The base station allocates a dedicated preamble for non-contention random access and a PRACH resource used for random access to the UE.
Msg1:UE根据Msg0的指示,在指定的PRACH资源上向基站发送指定的专用preamble。基站接收到Msg1后根据Msg1计算上行定时提前量TA。Msg1: The UE sends the designated dedicated preamble to the base station on the designated PRACH resource according to the indication of Msg0. After receiving the Msg1, the base station calculates the uplink timing advance TA according to Msg1.
Msg2:基站向UE发送随机接入响应,随机接入响应中包含定时提前量信息、后续上行传输资源分配UL grant,定时提前量用于UE后续上行传输的定时关系。Msg2: The base station sends a random access response to the UE. The random access response includes timing advance information and a subsequent uplink transmission resource allocation UL grant, and the timing advance is used for the timing relationship of the UE subsequent uplink transmission.
图4为MAC RAR格式示意图,如图所示,LTE系统中随机接入响应分组数据单元MAC RAR PDU(MAC:Media Access Control,媒体接入控制;RAR:Random Access Response,随机接入响应;PDU:Protocol Data Unit,协议数据单元)格式如下:4 is a schematic diagram of a MAC RAR format, as shown in the figure, a random access response packet data unit MAC RAR PDU (MAC: Media Access Control, media access control; RAR: Random Access Response, random access response; PDU) in the LTE system :Protocol Data Unit, protocol data unit) format is as follows:
随机接入响应头:RAPID(Random Preamble ID,随机接入前导码标识)用于指示基站收到的preamble的ID,E用于指示后续是否有另一个随机接入响应头。UE通过RAPID识别是否响应自己发送的preamble,通过识别对MAC RAR PDU加扰的RA-RNTI(其数值通过发送preamble的时频资源位置计算获取)识别该preamble发送的时频资源位置。UE结合RA-RNTI和RAPID,最终识别出该MAC RAR PDU是针对自己发送的随机接入响应。The random access response header: the RAPID (Random Preamble ID) is used to indicate the ID of the preamble received by the base station, and E is used to indicate whether there is another random access response header. The UE identifies whether to respond to the preamble sent by itself by the RAPID, and identifies the time-frequency resource location of the preamble transmission by identifying the RA-RNTI scrambled for the MAC RAR PDU whose value is obtained by transmitting the time-frequency resource location of the preamble. The UE combines the RA-RNTI and the RAPID to finally identify that the MAC RAR PDU is a random access response sent by itself.
图5为回退指示头格式示意图,如图所示,BI(Backoff Indication,回退指示)用于指示UE随机接入失败后发起下一次随机接入的延迟参数。T用于指示后续是BI还是RAPID。5 is a schematic diagram of a format of a backoff indication header. As shown in the figure, a backoff indication (BI) is used to indicate a delay parameter of the next random access after the random access failure of the UE. T is used to indicate whether the subsequent is BI or RAPID.
图6为随机接入响应消息格式示意图,如图所示,随机接入响应消息:左为常规随机接入响应,右为扩展随机接入响应6 is a schematic diagram of a random access response message format, as shown in the figure, a random access response message: the left is a regular random access response, and the right is an extended random access response.
在新一代无线通信系统中,因为驻留在小区不需要与网络侧进行信令和数据交互的UE只知道小区级信息,初始接入的UE没有TRP/Beam信息,只能通过小区级信息和资源进行随机接入,这样,UE发送Msg1由小区内所有或一部分传输点或波束接收,并能被网络侧有效识别,网络侧向UE发送随机接入响应Msg2的时候也是通过小区内TRP/Beam以同步方式发送的。随后的Msg3、Msg4也是通过小区内TRP/Beam同步方式发送。这种方式占用了小区内所有或大部分TRP/Beam资源。并且,如果要解决前面提到的UE在与网络侧进行信令和数据传输的时候(连接态UE)需要确定TRP/Beam信息,以降低资源开销和实现可靠传输,初始接入的UE需要通过某种方式获取TRP/Beam信息。 In a new-generation wireless communication system, the UE that does not need to perform signaling and data interaction with the network side only knows the cell-level information, and the initially accessed UE has no TRP/Beam information, and can only pass the cell-level information and The resource is randomly accessed. In this way, the UE sends Msg1 to be received by all or a part of the transmission points or beams in the cell, and can be effectively identified by the network side. When the network side sends the random access response Msg2 to the UE, it also passes the intra-cell TRP/Beam. Sent in synchronous mode. Subsequent Msg3 and Msg4 are also transmitted by intra-cell TRP/Beam synchronization. This approach occupies all or most of the TRP/Beam resources in the cell. Moreover, if the aforementioned UE is to perform signaling and data transmission with the network side (connected state UE), it is necessary to determine TRP/Beam information to reduce resource overhead and achieve reliable transmission, and the initially accessed UE needs to pass. Get TRP/Beam information in some way.
在5G系统中,一个小区可包含多个TRP/Beam。如果采用LTE的小区级信令和数据传输方式,需要所有或多个小区内的TRP/Beam采用同步方式对UE进行信令和数据传输,一种典型情况是随机接入过程中的消息需要由小区内的TRP/Beam同步发送和接收。这样,一来增加空口资源开销,降低系统容量;二来增加网络侧和终端耗电;三来由于终端不能识别TRP/Beam,不能进行精确的信道估计测量和精准的功控,不利于信令和数据传输可靠性的提高。因此,UE在需要与网络侧进行信令和数据传输的时候需要能识别TRP/Beam,以降低资源开销,增加系统容量,提高传输可靠性。In a 5G system, one cell may contain multiple TRP/Beams. If the cell-level signaling and the data transmission mode of the LTE are adopted, the TRP/Beam in all or multiple cells needs to perform signaling and data transmission in a synchronous manner in the UE. A typical situation is that the message in the random access process needs to be The TRP/Beam in the cell is synchronously transmitted and received. In this way, the air interface resource overhead is increased and the system capacity is reduced. Secondly, the network side and the terminal power consumption are increased. Thirdly, since the terminal cannot identify the TRP/Beam, accurate channel estimation measurement and accurate power control cannot be performed, which is disadvantageous for signaling. And the reliability of data transmission is improved. Therefore, the UE needs to be able to identify the TRP/Beam when it needs to perform signaling and data transmission with the network side, so as to reduce resource overhead, increase system capacity, and improve transmission reliability.
基于此,在本申请实施例提供的方案中,在随机接入过程中,通过随机接入响应向终端提供小区内具体传输单元信息,如TRP/Beam的信息,终端在后续传输中根据该信息进行TRP/Beam识别和TRP/Beam级传输。下面结合附图对本申请的具体实施方式进行说明。Based on this, in the solution provided by the embodiment of the present application, in the random access process, the specific transmission unit information in the cell, such as TRP/Beam information, is provided to the terminal through a random access response, and the terminal according to the information in subsequent transmission. Perform TRP/Beam identification and TRP/Beam level transmission. The specific embodiments of the present application will be described below with reference to the accompanying drawings.
在说明过程中,将分别从终端与网络侧的实施进行说明,其中网络侧将说明指示TRP/Beam的过程,终端侧将说明识别TRP/Beam以及随机接入、传输的过程,然后还将给出二者配合实施的实例以更好地理解本申请实施例中给出的方案的实施。这样的说明方式并不意味着二者必须配合实施、或者必须单独实施,实际上,当终端与网络侧分开实施时,其也各自解决终端侧、网络侧的问题,而二者结合使用时,会获得更好的技术效果。In the description process, the implementations from the terminal and the network side will be respectively explained. The network side will describe the process of indicating TRP/Beam, and the terminal side will explain the process of identifying TRP/Beam and random access and transmission, and then will give The examples are implemented in conjunction with the two to better understand the implementation of the solution presented in the embodiments of the present application. Such a description does not mean that the two must be implemented together or must be implemented separately. In fact, when the terminal is implemented separately from the network side, it also solves the problem of the terminal side and the network side, and when the two are combined, Will get better technical results.
图7为网络侧新一代无线通信系统中的TRP指示方法实施流程示意图,如图所示,可以包括:FIG. 7 is a schematic flowchart of a TRP indication method in a network-side next-generation wireless communication system, as shown in the figure, which may include:
步骤701、网络侧确定小区内向终端提供信令和/或数据传输的传输点或波束;Step 701: The network side determines a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell.
步骤702、在随机接入过程中,向终端发送随机接入响应,所述随机接入响应中携带所述传输点或波束的信息。Step 702: Send a random access response to the terminal in the random access process, where the random access response carries information about the transmission point or the beam.
图8为终端侧新一代无线通信系统中的传输方法实施流程示意图,如图所示,可以包括:FIG. 8 is a schematic flowchart of a transmission method in a terminal-side next-generation wireless communication system, as shown in the figure, which may include:
步骤801、在随机接入过程中,终端接收随机接入响应,所述随机接入响应携带有小区内向终端提供信令和/或数据传输的传输点或波束的信息;Step 801: In a random access process, the terminal receives a random access response, where the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to the intra-terminal terminal.
步骤802、根据所述随机接入响应确定所述传输点或波束;Step 802: Determine the transmission point or beam according to the random access response.
步骤803、终端根据所述传输点或波束进行TRP/Beam级传输。Step 803: The terminal performs TRP/Beam level transmission according to the transmission point or the beam.
实施中,对于TRP与beam,在现有标准讨论上,越来越倾向于只讨论beam的趋势,但是,实施中不管是传输点或波束,甚至传输点与波束结合,无论哪种方式都不影响本申请方案的实施,因为本申请的方案的目的在于使得终端能够在后续传输中根据该信息进行TRP/Beam识别和TRP/Beam级传输,至于具体的传输方式并无影响。In the implementation, for TRP and beam, in the discussion of existing standards, there is an increasing tendency to discuss only the trend of beam. However, in the implementation, whether it is a transmission point or a beam, or even a transmission point and a beam, no matter which way is used. The implementation of the solution of the present application is affected, because the purpose of the solution of the present application is to enable the terminal to perform TRP/Beam identification and TRP/Beam level transmission according to the information in subsequent transmissions, and the specific transmission mode has no effect.
下面对实施中涉及的具体方式进行说明。为了简明,在实施说明中将传输点或波束简 称为TRP/Beam。The specific manners involved in the implementation will be described below. For the sake of brevity, the transmission point or beam will be simplified in the implementation instructions. Called TRP/Beam.
1、TRP/Beam的信令和/或数据传输方式。1. TRP/Beam signaling and/or data transmission methods.
方式一:实施中,小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点或与收到Msg1的上行波束相对应的上下行波束对。Manner 1: In the implementation, the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1.
其中,关于波束,在实施中波束是有方向的,上下行波束组成一个波束对,分别提供上下行传输,网络侧接收Msg1是通过上行波束,发送随机接入响应通过下行波束。随机接入响应中的消息可以是上下行波束对的指示,也可以是上行波束或下行波束(波束信息主要是beam ID),这也取决于后面怎么用。In the implementation, the beam is directional in the implementation, and the uplink and downlink beams form a beam pair, respectively providing uplink and downlink transmission, and the network side receiving Msg1 transmits the random access response through the downlink beam through the uplink beam. The message in the random access response may be an indication of an uplink/downlink beam pair, or may be an uplink beam or a downlink beam (beam information is mainly a beam ID), which depends on how it is used later.
具体的,TRP/Beam信息为UE发送Msg1(preamble)对应的TRP/Beam的信息,gNB在该TRP/Beam上接收到Msg1后,将其信息组织到给该UE的随机接入响应中,与发送给该UE的其他信息,如上行定时提前量TA,上行资源分配UL grant等组织在一起发送。UE在接收到该信息后,可以在随机接入响应指示的TRP/Beam上进行后续随机接入过程及后续的数据传输,也即进行TRP/Beam级传输,具体进行TRP/Beam级传输时,是在传输点TRP传输或在某个波束传输,传输中遵循该对应TRP或beam的传输参数及特性即可。Specifically, the TRP/Beam information is used by the UE to send the TRP/Beam information corresponding to the Msg1 (preamble), and after receiving the Msg1 on the TRP/Beam, the gNB organizes the information into the random access response to the UE, and Other information sent to the UE, such as the uplink timing advance TA, the uplink resource allocation UL grant, and the like are sent together. After receiving the information, the UE may perform a subsequent random access procedure and subsequent data transmission on the TRP/Beam indicated by the random access response, that is, perform TRP/Beam transmission, and specifically perform TRP/Beam transmission. It is necessary to follow the transmission parameters and characteristics of the corresponding TRP or beam in the transmission point TRP transmission or in a certain beam transmission.
图9为方式一随机接入响应消息组织方式示意图,随机接入响应消息组织方式可以如图9所示。FIG. 9 is a schematic diagram of a manner of organizing a random access response message, and the random access response message organization manner may be as shown in FIG. 9.
图10为方式一随机接入响应PDU结构示意图,参考LTE随机接入响应格式,构造的随机接入响应PDU可以如图10所示。图中加粗部分为实施中引入的新信息,TRP/Beam info的位置不限于图中的位置。图示只是个示例,具体TRP/Beam info占用多少字节可以根据该信息的信息量确定。10 is a schematic diagram of a structure of a random access response PDU. Referring to the LTE random access response format, the constructed random access response PDU may be as shown in FIG. 10. The bold part in the figure is new information introduced in the implementation, and the position of TRP/Beam info is not limited to the position in the figure. The illustration is just an example. How many bytes of TRP/Beam info are used can be determined based on the amount of information of the information.
方式二:实施中,小区内向终端提供信令和/或数据传输的传输点或波束,是小区内所有的传输点或波束。Manner 2: In the implementation, the transmission point or beam that provides signaling and/or data transmission to the terminal in the cell is all transmission points or beams in the cell.
具体的,TRP/Beam信息为该小区所有或一部分传输点或波束信息指示,如指示可能接收TRP/Beam特有RS(reference signal,参考信号)的位置或序列索引。在这种方式下,所有UE接收相同的TRP/Beam信息,甚至没有发起随机接入的UE或者随机接入不成功的UE也可以接收该随机接入响应,获取小区内TRP/Beam配置。该TRP/Beam信息控制单元可以独立存在。UE在接收到小区全部TRP/Beam信息后,根据其指示,检测当前可用的TRP/Beam,并使用检测到的TRP/Beam进行后续的随机接入过程及后续的数据传输。Specifically, the TRP/Beam information indicates all or part of the transmission point or beam information of the cell, such as indicating a location or sequence index that may receive a TRP/Beam-specific RS (reference signal). In this manner, all UEs receive the same TRP/Beam information, and even the UE that does not initiate random access or the UE that fails to access the random access can receive the random access response and obtain the intra-cell TRP/Beam configuration. The TRP/Beam information control unit can exist independently. After receiving all the TRP/Beam information of the cell, the UE detects the currently available TRP/Beam according to the indication, and uses the detected TRP/Beam to perform the subsequent random access procedure and subsequent data transmission.
图11为方式二随机接入响应消息组织方式示意图,随机接入响应消息组织方式可以如图11所示。FIG. 11 is a schematic diagram of a method for organizing a random access response message according to mode 2, and a random access response message organization manner may be as shown in FIG. 11.
图12为方式二随机接入响应PDU结构示意图,参考LTE随机接入响应格式,构造的 随机接入响应PDU可以如图12所示。图中加粗部分为实施中引入的新信息,TRP/Beam info的位置不限于下图的位置,T1用于指示后续是否是TRP/Beam info。图示只是个示例,具体TRP/Beam info占用多少字节根据该信息的信息量确定。12 is a schematic structural diagram of a mode 2 random access response PDU, which is constructed by referring to an LTE random access response format. The random access response PDU can be as shown in FIG. The bold part in the figure is the new information introduced in the implementation. The position of TRP/Beam info is not limited to the position of the following figure, and T1 is used to indicate whether the subsequent is TRP/Beam info. The illustration is just an example. How many bytes are used by the specific TRP/Beam info is determined based on the amount of information of the information.
方式三:实施中,小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点或与收到Msg1的上行波束相对应的上下行波束对,在该方式下,采用的是隐式指示。Manner 3: In the implementation, the transmission point or beam that provides signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1. In this mode, an implicit indication is used.
具体实施中,随机接入响应携带有所述传输点或波束的信息,是在发送所述随机接入响应时,与该传输点或波束的特有的参考信号一起发送,该特有的参考信号用以使终端在检测到该特有的参考信号后能确定所述传输点或波束。In a specific implementation, the information about the transmission point or the beam carried by the random access response is sent together with the unique reference signal of the transmission point or the beam when the random access response is sent, and the unique reference signal is used. So that the terminal can determine the transmission point or beam after detecting the unique reference signal.
具体的,本例中,TRP/Beam信息不在随机接入响应中显式携带,对于在相同TRP/Beam下发送Msg1(preamble)的UE,gNB可以将这些UE的随机接入响应组织在一起,与该TRP/Beam特有的参考信号一起发送。UE在检测到该TRP/Beam参考信号后,确定出TRP/Beam信息,并使用该TRP/Beam信息进行后续的随机接入过程及后续的数据传输。这种方式下,MAC RAR格式及包含的内容可以与LTE基本相同,但与之一起发送的参考信号可以采用新设计。Specifically, in this example, the TRP/Beam information is not explicitly carried in the random access response, and for the UE that sends the Msg1 (preamble) under the same TRP/Beam, the gNB can organize the random access responses of the UEs together. Sent with the TRP/Beam-specific reference signal. After detecting the TRP/Beam reference signal, the UE determines the TRP/Beam information, and uses the TRP/Beam information to perform the subsequent random access procedure and subsequent data transmission. In this way, the MAC RAR format and the content contained can be basically the same as LTE, but the reference signal sent with it can be newly designed.
具体实施中,携带特有的参考信号可以是指通过RA-RNTI加扰所述随机接入响应,该RA-RNTI是将发送Msg1的传输点或波束标识作为输入参数计算获取的。In a specific implementation, carrying the unique reference signal may refer to scrambling the random access response by using an RA-RNTI, where the RA-RNTI is calculated by using a transmission point or a beam identifier that sends the Msg1 as an input parameter.
具体的,RA-RNTI的计算可以输入包括:TRP ID/Beam ID,或者时频资源等,一个TRP/Beam特有参考信号的示例为:LTE下随机接入响应是通过RA-RNTI加扰的,该RA-RNTI通过发送Msg1的时频资源位置计算获取,如果基于RA-RNTI对随机接入响应加扰的方式直接扩展,RA-RNTI计算因素中,可以包含TRP/Beam编号等类似信息。Specifically, the calculation of the RA-RNTI may include: a TRP ID/Beam ID, or a time-frequency resource, etc., and an example of a TRP/Beam-specific reference signal is: the random access response in LTE is scrambled by the RA-RNTI, The RA-RNTI is obtained by transmitting the time-frequency resource location of the Msg1. If the RA-RNTI is directly extended based on the RA-RNTI scrambling method, the RA-RNTI calculation factor may include the TRP/Beam number and the like.
2、随机接入响应中的传输单元TRP/Beam信息内容。2. The TRP/Beam information content of the transmission unit in the random access response.
实施中,随机接入响应中携带的传输点或波束的信息可以包括以下信息之一或者其组合:In an implementation, the information of the transmission point or the beam carried in the random access response may include one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
具体的,TRP/Beam信息内容可包括以下一种或多种,具体如何组合可以参考上述TRP/Beam信令和/或数据传输方式:Specifically, the TRP/Beam information content may include one or more of the following, and how to combine the TRP/Beam signaling and/or data transmission manners may be referred to:
TRP/Beam级参考信号(如BRS(Beam reference signals,波束参考信号)信息,可以包括参考信号序列信息,时频资源位置,参考功率等;The TRP/Beam level reference signal (such as BRS (Beam Reference Signal) information) may include reference signal sequence information, time-frequency resource location, reference power, and the like;
TRP/Beam ID,可能用于识别TRP、Beam,并进行相关序列(如BRS,preamble码等) 生成和识别;TRP/Beam ID, which may be used to identify TRP, Beam, and related sequences (such as BRS, preamble code, etc.) Generation and identification;
TRP/Beam级的随机接入资源PRACH(即用于容纳Msg1 preamble的资源)信息,不同于小区级的随机接入资源,TRP/Beam级的随机接入资源对于idle UE不可见和不可用;The TRP/Beam-level random access resource PRACH (that is, the resource for accommodating the Msg1 preamble) information is different from the cell-level random access resource, and the TRP/Beam-level random access resource is invisible and unavailable to the idle UE;
TRP/Beam级preamble序列信息。TRP/Beam level preamble sequence information.
下面以实例进行说明。The following is an example.
实施中,随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2,具体可以参见实施例一、二、三、四、五中涉及Msg2的步骤。In the implementation, the random access response is a random access response Msg2 sent by all or a part of the transmission points or beams in the cell. For details, refer to the steps of the Msg2 in the first, second, third, fourth and fifth embodiments.
实施中,在实施例一、二、三、五中,在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送Msg1,所述系统消息是采用小区所有或一部分传输点或波束同步发送的方式发送的。In the implementation, in the first, second, third, and fifth embodiments, after the terminal obtains the cell-level random access resource configuration from the received system message, the terminal sends the Msg1 in the cell according to the random access resource configuration, where the system message is sent. It is sent by means of all or part of the transmission point or beam synchronous transmission of the cell.
实施例一:Embodiment 1:
本例中,gNB在随机接入响应中指示UE接入的TRP/Beam,并后续随机接入过程中采用指定的TRP/Beam。In this example, the gNB indicates the TRP/Beam that the UE accesses in the random access response, and the specified TRP/Beam is used in the subsequent random access procedure.
对应TRP/Beam信令和/或数据传输方式一,TRP/Beam信息为UE发送Msg1(preamble)对应的TRP/Beam的信息。Corresponding to TRP/Beam signaling and/or data transmission mode 1, the TRP/Beam information is used to send the TRP/Beam information corresponding to the Msg1 (preamble) to the UE.
图13为实施例一随机接入过程示意图,如图所示,UE侧可以包括如下步骤:FIG. 13 is a schematic diagram of a random access procedure according to the embodiment. As shown in the figure, the UE side may include the following steps:
步骤1300:Essential SI,including cell specific RACH configuration(SFNed transmission)(必要的系统消息,包括小区特有的RACH配置(以单频网方式发送,即参与传输的节点以相同时频资源同步发送;SFN:Single Frequency Network,单频网))。Step 1300: Essential SI, including cell specific RACH configuration (SFNed transmission) (required system message, including cell-specific RACH configuration (sending in a single frequency network manner, that is, nodes participating in the transmission are synchronously transmitted with the same time-frequency resource; SFN: Single Frequency Network, single frequency network)).
UE接收系统消息,获取小区级随机接入资源配置(包括PRACH资源,preamble配置等),系统消息采用小区所有或一部分传输点或波束同步发送的方式。The UE receives the system message, and obtains a cell-level random access resource configuration (including a PRACH resource, a preamble configuration, and the like), and the system message adopts a manner in which all or a part of the cell is transmitted or beam-synchronized.
步骤1301:Msg1:Preamble。Step 1301: Msg1: Preamble.
UE根据随机接入资源配置,在小区内发送Msg1(preamble)。The UE sends an Msg1 (preamble) in the cell according to the random access resource configuration.
步骤1302:Msg2:RAR(包括TA,T-CRNTI和与UE发送Msg1对应的TRP/Beam信息)(SFNed transmission)。Step 1302: Msg2: RAR (including TA, T-CRNTI and TRP/Beam information corresponding to the UE transmitting Msg1) (SFNed transmission).
UE接收小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2,MAC RAR PDU格式参见图9、图10,从随机接入响应消息中获取TRP/Beam信息。The UE receives the random access response Msg2 sent by all or a part of the transmission points or the beam synchronization in the cell. The format of the MAC RAR PDU is as shown in FIG. 9 and FIG. 10, and the TRP/Beam information is obtained from the random access response message.
步骤1303:Msg3:Scheduled transmission。Step 1303: Msg3: Scheduled transmission.
UE在Msg2中分配的上行资源上发送上行传输,该上行资源分配可以是针对特定TRP/Beam的。The UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the uplink resource allocation may be for a specific TRP/Beam.
步骤1304:Msg4:Contention Resolution(from individual TRP/Beam)(从特定的 TRP/Beam上发送的)。Step 1304: Msg4: Contention Resolution (from individual TRP/Beam) (from a specific Sent on TRP/Beam).
UE根据随机接入响应中指示的TRP/Beam信息接收竞争解决消息Msg4,该Msg4是从UE接入的TRP/Beam发送下来的。The UE receives the contention resolution message Msg4 according to the TRP/Beam information indicated in the random access response, and the Msg4 is sent from the TRP/Beam accessed by the UE.
也即,本例中,在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对特定的传输点或波束时,根据随机接入响应中携带的传输点或波束的信息接收竞争解决消息Msg4。相应的,网络侧则为终端在Msg2中分配针对特定的传输点或波束的上行传输的资源,并在该传输点或波束上发送竞争解决消息Msg4。That is, in this example, the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is received according to the information of the transmission point or the beam carried in the random access response when the specific resource allocation is for a specific transmission point or beam. The competition resolves the message Msg4. Correspondingly, the network side allocates a resource for uplink transmission for a specific transmission point or beam in the Msg2, and sends a contention resolution message Msg4 on the transmission point or beam.
网络侧采用与UE侧相对应的过程,在此不再赘述。The network side adopts a process corresponding to the UE side, and details are not described herein again.
实施例二:Embodiment 2:
本例中,gNB在随机接入响应中指示UE接入的TRP/Beam,UE在完成随机接入后采用指定的TRP/Beam进行后续传输。In this example, the gNB indicates the TRP/Beam that the UE accesses in the random access response, and the UE uses the designated TRP/Beam for subsequent transmission after completing the random access.
对应TRP/Beam信令和/或数据传输方式一,TRP/Beam信息为UE发送Msg1(preamble)对应的TRP/Beam的信息。实施例二是为了避免在竞争解决前,UE错误的使用TRP/Beam资源造成干扰。Corresponding to TRP/Beam signaling and/or data transmission mode 1, the TRP/Beam information is used to send the TRP/Beam information corresponding to the Msg1 (preamble) to the UE. The second embodiment is to avoid interference caused by the UE using TRP/Beam resources incorrectly before the competition is resolved.
图14为实施例二随机接入过程示意图,如图所示,UE侧可以包括如下步骤:FIG. 14 is a schematic diagram of a random access procedure in Embodiment 2, as shown in the figure, the UE side may include the following steps:
步骤1400:Essential SI,including cell specific RACH configuration(SFNed transmission)。Step 1400: Essential SI, including cell specific RACH configuration (SFNed transmission).
UE接收系统消息,获取小区级随机接入资源配置(包括PRACH资源,preamble配置等),系统消息采用小区所有或一部分传输点或波束同步发送的方式。The UE receives the system message, and obtains a cell-level random access resource configuration (including a PRACH resource, a preamble configuration, and the like), and the system message adopts a manner in which all or a part of the cell is transmitted or beam-synchronized.
步骤1401:Msg1:Preamble。Step 1401: Msg1: Preamble.
UE根据随机接入资源配置,在小区内发送Msg1(preamble)。The UE sends an Msg1 (preamble) in the cell according to the random access resource configuration.
步骤1402:Msg2:RAR(包括TA,T-CRNTI和与UE发送Msg1对应的TRP/Beam信息)(SFNed transmission)。Step 1402: Msg2: RAR (including TA, T-CRNTI and TRP/Beam information corresponding to the UE transmitting Msg1) (SFNed transmission).
UE接收小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2,MAC RAR PDU格式参见图9、图10,从随机接入响应消息中获取TRP/Beam信息。The UE receives the random access response Msg2 sent by all or a part of the transmission points or the beam synchronization in the cell. The format of the MAC RAR PDU is as shown in FIG. 9 and FIG. 10, and the TRP/Beam information is obtained from the random access response message.
步骤1403:Msg3:Scheduled transmission。Step 1403: Msg3: Scheduled transmission.
UE在Msg2中分配的上行资源上发送上行传输,该上行传输小区内的TRP/Beam都可以获取。The UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the TRP/Beam in the uplink transmission cell can be obtained.
步骤1404:Msg4:Contention Resolution(SFNed transmission)。Step 1404: Msg4: Contention Resolution (SFNed transmission).
UE根据接收小区内全部TRP/Beam同步发送的竞争解决消息Msg4。The UE performs a contention resolution message Msg4 that is synchronously transmitted by all TRP/Beams in the receiving cell.
也即,本例中,在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对所有的传输点或波束时,接收小区内所有的传输点或波束同步发送的竞争解决消息 Msg4。相应的,网络侧则为终端在Msg2中分配针对所有的传输点或波束的上行传输资源,并在小区内所有或一部分传输点或波束上同步发送竞争解决消息Msg4。That is, in this example, the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is a contention resolution message sent by all the transmission points or beams in the receiving cell for all the transmission points or beams. Msg4. Correspondingly, the network side allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
上述竞争解决完成后,UE可以采用从随机接入响应Msg2中获取的TRP/Beam信息进行后续的信令和数据传输。After the contention resolution is completed, the UE may use the TRP/Beam information obtained from the random access response Msg2 for subsequent signaling and data transmission.
网络侧采用与UE侧相对应的过程,在此不再赘述。The network side adopts a process corresponding to the UE side, and details are not described herein again.
实施例三:Embodiment 3:
本例中,gNB指示小区内全部TRP/Beam信息,UE发送Msg1后,根据该小区内全部TRP/Beam信息,检测所处TRP/Beam,并完成随机接入。In this example, the gNB indicates all the TRP/Beam information in the cell. After the Msg1 is sent, the UE detects the TRP/Beam according to all the TRP/Beam information in the cell, and completes the random access.
对应TRP/Beam信令和/或数据传输方式二,TRP/Beam信息为该小区所有或一部分传输点或波束信息指示。Corresponding to TRP/Beam signaling and/or data transmission mode 2, the TRP/Beam information is all or part of the transmission point or beam information indication of the cell.
图15为实施例三随机接入过程示意图,如图所示,UE侧可以包括如下步骤:15 is a schematic diagram of a random access procedure in Embodiment 3. As shown in the figure, the UE side may include the following steps:
步骤1500:Essential SI,including cell specific RACH configuration(SFNed transmission)。Step 1500: Essential SI, including cell specific RACH configuration (SFNed transmission).
UE接收系统消息,获取小区级随机接入资源配置(包括PRACH资源,preamble配置等),系统消息采用小区所有或一部分传输点或波束同步发送的方式。The UE receives the system message, and obtains a cell-level random access resource configuration (including a PRACH resource, a preamble configuration, and the like), and the system message adopts a manner in which all or a part of the cell is transmitted or beam-synchronized.
步骤1501:Msg1:Preamble。Step 1501: Msg1: Preamble.
UE根据小区级随机接入资源配置,在小区内发送Msg1(preamble)。The UE sends an Msg1 (preamble) in the cell according to the cell-level random access resource configuration.
步骤1502:Msg2:RAR(包括TA,T-CRNTI和小区内全部TRP/Beam信息)(SFNed transmission)。Step 1502: Msg2: RAR (including TA, T-CRNTI and all TRP/Beam information in the cell) (SFNed transmission).
UE接收小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2,MAC RAR PDU格式参见图11、图12,从随机接入响应消息中获取小区内全部TRP/Beam信息,并根据该信息检测自己所处的TRP/Beam。The UE receives the random access response Msg2 sent by all or a part of the transmission points or the beam synchronization in the cell. The format of the MAC RAR PDU is as shown in FIG. 11 and FIG. 12, and all the TRP/Beam information in the cell is obtained from the random access response message, and according to the Information detects the TRP/Beam you are in.
步骤1503:Msg3:Scheduled transmission。Step 1503: Msg3: Scheduled transmission.
UE在Msg2中分配的上行资源上发送上行传输,该上行传输可以只在UE检测到的TRP/Beam上,或使用UE检测到其所处TRP/Beam的专有配置发送,如使用该TRP/Beam特有的参考信号。The UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the uplink transmission may be sent only on the TRP/Beam detected by the UE, or by using the proprietary configuration of the TRP/Beam that the UE detects, such as using the TRP/ Beam-specific reference signal.
步骤1504:Msg4:Contention Resolution(from individual TRP/Beam)。Step 1504: Msg4: Contention Resolution (from individual TRP/Beam).
UE根据检测到的TRP/Beam的信息接收竞争解决消息Msg4,该Msg4是从UE接入的TRP/Beam发送下来的。The UE receives the contention resolution message Msg4 according to the detected TRP/Beam information, and the Msg4 is sent from the TRP/Beam accessed by the UE.
网络侧采用与UE侧相对应的过程,在此不再赘述。The network side adopts a process corresponding to the UE side, and details are not described herein again.
实施例四:Embodiment 4:
本例中,gNB在随机接入响应中指示小区内全部TRP/Beam信息,未发起随机接入或 随机接入失败的UE通过该信息检测所处TRP/Beam,并在确定出的TRP/Beam上进行随机接入。In this example, the gNB indicates all TRP/Beam information in the cell in the random access response, and does not initiate random access or The UE that fails the random access detects the TRP/Beam located by the information, and performs random access on the determined TRP/Beam.
对应TRP/Beam信令和/或数据传输方式二,TRP/Beam信息为该小区所有或一部分传输点或波束信息指示。Corresponding to TRP/Beam signaling and/or data transmission mode 2, the TRP/Beam information is all or part of the transmission point or beam information indication of the cell.
图16为实施例四随机接入过程示意图,如图所示,UE侧可以包括如下步骤:FIG. 16 is a schematic diagram of a random access procedure in the fourth embodiment. As shown in the figure, the UE side may include the following steps:
步骤1600:Msg2:RAR(包括小区内全部TRP/Beam信息)(SFNed transmission)。Step 1600: Msg2: RAR (including all TRP/Beam information in the cell) (SFNed transmission).
UE根据小区公共信息检测Msg2,获取小区内全部TRP/Beam信息。其中:The UE detects Msg2 according to the cell common information, and acquires all TRP/Beam information in the cell. among them:
未发起随机接入的UE可以设置一定窗长接收Msg2,获取小区内全部TRP/Beam信息,并根据小区内全部TRP/Beam信息,检测UE当前工作的TRP/Beam。如果UE在窗长内未接收到包含TRP/Beam信息的随机接入响应,则按照实施例四的方式,先发起小区级Msg1(preamble)。A UE that does not initiate random access may set a certain window length to receive Msg2, obtain all TRP/Beam information in the cell, and detect the current TRP/Beam of the UE according to all TRP/Beam information in the cell. If the UE does not receive the random access response including the TRP/Beam information within the window length, the cell level Msg1 (preamble) is first initiated in the manner of the fourth embodiment.
随机接入失败的UE可以使用已接收到的Msg2中携带的小区内全部TRP/Beam信息,检测当前工作的TRP/Beam。The UE that fails the random access may use the TRP/Beam information in the cell carried in the received Msg2 to detect the current working TRP/Beam.
也即,未发起随机接入的终端通过随机接入响应消息,获取小区内全部传输点或波束的信息,检测当前工作的传输点或波束,或,随机接入失败的终端使用已接收到的小区内全部传输点或波束的信息,检测当前工作的传输点或波束;在检测出的传输点或波束上发送Msg1。That is, the terminal that does not initiate the random access obtains the information of all the transmission points or beams in the cell through the random access response message, detects the currently working transmission point or beam, or uses the received terminal after the random access failure. Information about all transmission points or beams in the cell, detecting the current working transmission point or beam; transmitting Msg1 on the detected transmission point or beam.
步骤1601:Msg1:Preamble。Step 1601: Msg1: Preamble.
UE检测到的TRP/Beam信息,在该TRP/Beam上发送Msg1(preamble)。The TRP/Beam information detected by the UE transmits Msg1 (preamble) on the TRP/Beam.
步骤1602:Msg2:RAR(包括TA,T-CRNTI和小区内全部TRP/Beam信息)(SFNed transmission)。Step 1602: Msg2: RAR (including TA, T-CRNTI and all TRP/Beam information in the cell) (SFNed transmission).
UE接收小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2,MAC RAR PDU格式参见图11、图12。另一种实现方式是携带小区内全部TRP/Beam信息的随机接入响应信息不与已区分出TRP/Beam的UE的随机接入响应复用到一起,携带小区内全部TRP/Beam信息的随机接入响应信息在小区内全部TRP/Beam上同步发送,针对特定UE的随机接入响应只在该UE发送Msg1对应的TRP/Beam上发送。The UE receives the random access response Msg2 sent by all or a part of the transmission points or beam synchronization in the cell. The format of the MAC RAR PDU is shown in FIG. 11 and FIG. 12. Another implementation manner is that random access response information carrying all TRP/Beam information in the cell is not multiplexed with the random access response of the UE that has distinguished the TRP/Beam, and randomized all TRP/Beam information in the cell is carried. The access response information is synchronously transmitted on all TRP/Beams in the cell, and the random access response for the specific UE is sent only on the TRP/Beam corresponding to the Msg1 sent by the UE.
步骤1603:Msg3:Scheduled transmission。Step 1603: Msg3: Scheduled transmission.
UE在Msg2中分配的上行资源上发送上行传输,该上行传输可以只在UE检测到的TRP/Beam上,或使用UE检测到其所处TRP/Beam的专有配置发送,如使用该TRP/Beam特有的参考信号。The UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the uplink transmission may be sent only on the TRP/Beam detected by the UE, or by using the proprietary configuration of the TRP/Beam that the UE detects, such as using the TRP/ Beam-specific reference signal.
步骤1604:Msg4:Contention Resolution(from individual TRP/Beam)。 Step 1604: Msg4: Contention Resolution (from individual TRP/Beam).
UE根据检测到的TRP/Beam的信息接收竞争解决消息Msg4,该Msg4是从UE接入的TRP/Beam发送下来的。The UE receives the contention resolution message Msg4 according to the detected TRP/Beam information, and the Msg4 is sent from the TRP/Beam accessed by the UE.
网络侧采用与UE侧相对应的过程,在此不再赘述。The network side adopts a process corresponding to the UE side, and details are not described herein again.
实施例五:Embodiment 5:
本例中,随机接入响应消息与TRP/Beam特有的参考信号一起发送。In this example, the random access response message is sent with a TRP/Beam-specific reference signal.
对应TRP/Beam信令和/或数据传输方式三,TRP/Beam信息隐式携带。Corresponding to TRP/Beam signaling and/or data transmission mode III, TRP/Beam information is implicitly carried.
图17为实施例五随机接入过程示意图,如图所示,UE侧可以包括如下步骤:FIG. 17 is a schematic diagram of a random access procedure in Embodiment 5, as shown in the figure, the UE side may include the following steps:
步骤1700:Essential SI,including cell specific RACH configuration(SFNed transmission)。Step 1700: Essential SI, including cell specific RACH configuration (SFNed transmission).
UE接收系统消息,获取小区级随机接入资源配置(包括PRACH资源,preamble配置等),系统消息采用小区所有或一部分传输点或波束同步发送的方式。The UE receives the system message, and obtains a cell-level random access resource configuration (including a PRACH resource, a preamble configuration, and the like), and the system message adopts a manner in which all or a part of the cell is transmitted or beam-synchronized.
步骤1701:Msg1:Preamble。Step 1701: Msg1: Preamble.
UE根据随机接入资源配置,在小区内发送Msg1(preamble)。The UE sends an Msg1 (preamble) in the cell according to the random access resource configuration.
步骤1702:Msg2:RAR(包括TA,T-CRNTI和与UE发送Msg1对应的TRP/Beam信息)(SFNed transmission)。Step 1702: Msg2: RAR (including TA, T-CRNTI and TRP/Beam information corresponding to the UE transmitting Msg1) (SFNed transmission).
UE接收小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2,该随机接入响应消息中携带TRP/Beam相关信息,例如使用以TRP/Beam ID为输入生成的RA-RNTI对Msg2加扰。这种方式下,只有针对相同TRP/Beam下UE发送的Msg1的Msg2随机接入响应可以复用在一个PDU中发送。The UE receives the random access response Msg2 sent by all or a part of the transmission points or the beam synchronization in the cell, and the random access response message carries the TRP/Beam related information, for example, the RA-RNTI pair Msg2 generated by using the TRP/Beam ID as an input. Scrambled. In this manner, only the Msg2 random access response of the Msg1 sent by the UE under the same TRP/Beam can be multiplexed and transmitted in one PDU.
步骤1703:Msg3:Scheduled transmission。Step 1703: Msg3: Scheduled transmission.
UE在Msg2中分配的上行资源上发送上行传输,该上行资源分配可以是针对特定TRP/Beam的。The UE sends an uplink transmission on the uplink resource allocated in the Msg2, and the uplink resource allocation may be for a specific TRP/Beam.
步骤1704:Msg4:Contention Resolution(from individual TRP/Beam)。Step 1704: Msg4: Contention Resolution (from individual TRP/Beam).
UE根据随机接入响应中指示的TRP/Beam信息接收竞争解决消息Msg4,该Msg4是从UE接入的TRP/Beam发送下来的。The UE receives the contention resolution message Msg4 according to the TRP/Beam information indicated in the random access response, and the Msg4 is sent from the TRP/Beam accessed by the UE.
网络侧采用与UE侧相对应的过程,在此不再赘述。The network side adopts a process corresponding to the UE side, and details are not described herein again.
基于同一发明构思,本申请实施例中还提供了一种新一代无线通信系统中的TRP指示装置、一种新一代无线通信系统中的传输装置,由于这些装置解决问题的原理与一种新一代无线通信系统中的TRP指示方法、一种新一代无线通信系统中的传输方法相似,因此这些装置的实施可以参见方法的实施,重复之处不再赘述。Based on the same inventive concept, the embodiment of the present application further provides a TRP indication device in a new generation wireless communication system, and a transmission device in a new generation wireless communication system, and the principle of solving the problem by these devices and a new generation The TRP indication method in the wireless communication system and the transmission method in a new generation wireless communication system are similar. Therefore, the implementation of these devices can be referred to the implementation of the method, and the repeated description is not repeated.
图18为新一代无线通信系统中的传输点或波束指示装置结构示意图,如图所示,可以包括: FIG. 18 is a schematic structural diagram of a transmission point or a beam indicating apparatus in a new generation wireless communication system, as shown in the figure, which may include:
网络侧确定模块1801,用于在网络侧确定小区内向终端提供信令和/或数据传输的传输点或波束;The network side determining module 1801 is configured to determine, at the network side, a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell;
发送模块1802,用于在随机接入过程中,向终端发送随机接入响应,所述随机接入响应中携带所述传输点或波束Beam的信息。The sending module 1802 is configured to send a random access response to the terminal in the random access process, where the random access response carries information about the transmission point or the beam Beam.
实施中,网络侧确定模块进一步用于确定小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点,或与收到Msg1的上行波束相对应的上下行波束对;或,是小区内所有的传输点或波束。In an implementation, the network side determining module is further configured to determine a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell, where the transmission point of the Msg1 sent by the terminal is received, or corresponds to the uplink beam that receives the Msg1. Upstream and downlink beam pairs; or, all transmission points or beams in the cell.
实施中,发送模块进一步用于在所述随机接入响应携带有所述传输点或波束的信息时,是在发送所述随机接入响应时,与该传输点或波束的特有的参考信号一起发送,该特有的参考信号用以使终端在检测到该特有的参考信号后能确定所述传输点或波束。In an implementation, the sending module is further configured to: when the random access response carries the information of the transmission point or the beam, when the random access response is sent, together with the unique reference signal of the transmission point or the beam Transmit, the unique reference signal is used to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
实施中,发送模块进一步用于在携带所述特有的参考信号时,是通过RA-RNTI加扰所述随机接入响应,该RA-RNTI是将发送Msg1的传输点或波束标识作为输入参数计算获取的。In an implementation, the sending module is further configured to: when carrying the specific reference signal, the random access response is scrambled by using an RA-RNTI, where the RA-RNTI calculates a transmission point or a beam identifier that sends the Msg1 as an input parameter. Obtained.
实施中,进一步包括:In implementation, it further includes:
网络侧接收模块,用于接收终端发送的Msg1,所述Msg1是在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送的Msg1,所述系统消息是网络侧采用小区所有或一部分传输点或波束同步发送的方式发送的。The network side receiving module is configured to receive the Msg1 sent by the terminal, where the Msg1 is the Msg1 sent in the cell according to the random access resource configuration after the terminal acquires the cell-level random access resource configuration from the received system message. The system message is sent by the network side by means of all or part of the transmission point or beam synchronization transmission of the cell.
实施中,发送模块进一步用于为终端在Msg2中分配针对特定的传输点或波束的上行传输的资源,并在该传输点或波束上发送竞争解决消息Msg4;或者,为终端在Msg2中分配针对所有的传输点或波束的上行传输资源,并在小区内所有或一部分传输点或波束上同步发送竞争解决消息Msg4。In an implementation, the sending module is further configured to allocate, for the terminal, the uplink transmission resource for the specific transmission point or the beam in the Msg2, and send the contention resolution message Msg4 on the transmission point or the beam; or, allocate the target for the terminal in the Msg2 All transmission points or uplink transmission resources of the beam, and the contention resolution message Msg4 is synchronously transmitted on all or a part of transmission points or beams in the cell.
实施中,所述随机接入响应中携带的传输点或波束的信息包括以下信息之一或者其组合:In an implementation, the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
图19为新一代无线通信系统中的传输装置结构示意图,如图所示,可以包括:FIG. 19 is a schematic structural diagram of a transmission device in a new generation wireless communication system, as shown in the figure, which may include:
终端侧接收模块1901,用于在随机接入过程中,终端接收随机接入响应,所述随机接入响应携带有小区内向终端提供信令和/或数据传输的传输点或波束的信息;The terminal side receiving module 1901 is configured to: in the random access process, the terminal receives a random access response, where the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to the intra-cell terminal;
终端侧确定模块1902,用于根据所述随机接入响应确定所述传输点或波束; The terminal side determining module 1902 is configured to determine the transmission point or a beam according to the random access response;
传输模块1903,用于终端根据所述传输点或波束进行TRP/Beam级传输。The transmission module 1903 is configured to perform TRP/Beam level transmission according to the transmission point or the beam.
实施中,进一步包括:In implementation, it further includes:
终端侧发送模块,用于在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送Msg1,所述系统消息是采用小区所有或一部分传输点或波束同步发送的方式发送的。The terminal side sending module is configured to: after the terminal acquires the cell-level random access resource configuration from the received system message, send the Msg1 in the cell according to the random access resource configuration, where the system message uses all or part of the transmission point of the cell. Or sent by means of beam synchronous transmission.
实施中,终端侧接收模块进一步用于在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对特定的传输点或波束时,根据随机接入响应中携带的传输点或波束的信息接收竞争解决消息Msg4;或者,在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对所有的传输点或波束时,接收小区内所有的传输点或波束同步发送的竞争解决消息Msg4。In an implementation, the terminal-side receiving module is further configured to send an uplink transmission on an uplink resource allocated by the terminal in the Msg2, where the uplink resource allocation is based on a transmission point or a beam carried in the random access response for a specific transmission point or beam. The information receives the contention resolution message Msg4; or, the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is for all the transmission points or beams, and all the transmission points or beams in the receiving cell are synchronously transmitted. The competition resolves the message Msg4.
实施中,终端侧确定模块进一步用于在根据所述随机接入响应确定所述传输点或波束时,是根据在发送所述随机接入响应时,与该随机接入响应一起发送的传输点或波束特有的参考信号检测确定的。In an implementation, the terminal side determining module is further configured to: when determining the transmission point or beam according to the random access response, according to a transmission point that is sent together with the random access response when the random access response is sent Or beam-specific reference signal detection is determined.
实施中,终端侧确定模块进一步用于在未发起随机接入的终端通过随机接入响应消息,获取小区内全部传输点或波束的信息,检测当前工作的传输点或波束,或,在随机接入失败的终端使用已接收到的小区内全部传输点或波束的信息,检测当前工作的传输点或波束;In the implementation, the terminal side determining module is further configured to: after the terminal that does not initiate the random access, obtain the information of all the transmission points or beams in the cell by using the random access response message, and detect the currently working transmission point or beam, or randomly The failed terminal uses the information of all the transmission points or beams in the received cell to detect the currently working transmission point or beam;
进一步包括:Further includes:
终端侧发送模块,用于在检测出的传输点或波束上发送Msg1。The terminal side sending module is configured to send Msg1 on the detected transmission point or beam.
实施中,终端侧确定模块进一步在确定所述随机接入响应携带有所述传输点或波束的信息时,是在发送的随机接入响应与该传输点或波束的特有的参考信号一起发送的时,根据检测到的该特有的参考信号确定所述传输点或波束。In an implementation, the terminal side determining module further sends, when the random access response carries the information of the transmission point or the beam, the sent random access response and the unique reference signal of the transmission point or the beam. The transmission point or beam is determined based on the detected unique reference signal.
实施中,所述传输点或波束的信息包括以下信息之一或者其组合:In implementation, the information of the transmission point or beam includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
为了描述的方便,以上所述装置的各部分以功能分为各种模块或单元分别描述。当然,在实施本申请时可以把各模块或单元的功能在同一个或多个软件或硬件中实现。For convenience of description, the various parts of the above described devices are described in terms of functions divided into various modules or units. Of course, the functions of each module or unit may be implemented in the same software or hardware in the implementation of the present application.
在实施本申请实施例提供的技术方案时,可以按如下方式实施。When the technical solution provided by the embodiment of the present application is implemented, it can be implemented as follows.
图20为网络侧节点结构示意图,如图所示,网络侧节点中包括: FIG. 20 is a schematic structural diagram of a network side node, as shown in the figure, the network side node includes:
处理器2000,用于读取存储器2020中的程序,执行下列过程:The processor 2000 is configured to read a program in the memory 2020 and perform the following processes:
在确定小区内向终端提供信令和/或数据传输的传输点或波束;Determining a transmission point or beam that provides signaling and/or data transmission to the terminal within the cell;
收发机2010,用于在处理器2000的控制下接收和发送数据,执行下列过程:The transceiver 2010 is configured to receive and transmit data under the control of the processor 2000, and performs the following processes:
在随机接入过程中,向终端发送随机接入响应,所述随机接入响应中携带所述传输点或波束Beam的信息。In the random access process, a random access response is sent to the terminal, where the random access response carries information of the transmission point or the beam Beam.
实施中,小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点,或与收到Msg1的上行波束相对应的上下行波束对;In the implementation, the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the terminal, or the uplink and downlink beam pair corresponding to the uplink beam of the received Msg1;
或,是小区内所有的传输点或波束。Or, it is all transmission points or beams in the cell.
实施中,所述随机接入响应携带有所述传输点或波束的信息,是在发送所述随机接入响应时,与该传输点或波束的特有的参考信号一起发送,该特有的参考信号用以使终端在检测到该特有的参考信号后能确定所述传输点或波束。In an implementation, the random access response carries information about the transmission point or the beam, and is sent together with a unique reference signal of the transmission point or the beam when the random access response is sent, the unique reference signal The method is configured to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
实施中,携带所述特有的参考信号是指通过RA-RNTI加扰所述随机接入响应,该RA-RNTI是将发送Msg1的传输点或波束标识作为输入参数计算获取的。In the implementation, carrying the unique reference signal refers to scrambling the random access response by using an RA-RNTI, and the RA-RNTI is obtained by calculating a transmission point or a beam identifier that sends the Msg1 as an input parameter.
实施中,进一步包括:In implementation, it further includes:
接收终端发送的Msg1,所述Msg1是在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送的Msg1,所述系统消息是网络侧采用小区所有或一部分传输点或波束同步发送的方式发送的。Receiving the Msg1 sent by the terminal, where the Msg1 is sent by the terminal according to the random access resource configuration after the terminal obtains the cell-level random access resource configuration from the received system message, where the system message is adopted by the network side. Transmitted by all or part of the transmission point or beam synchronous transmission of the cell.
实施中,进一步包括:In implementation, it further includes:
为终端在Msg2中分配针对特定的传输点或波束的上行传输的资源,并在该传输点或波束上发送竞争解决消息Msg4;Allocating a resource for uplink transmission of a specific transmission point or beam in the Msg2, and transmitting a contention resolution message Msg4 on the transmission point or beam;
或者,为终端在Msg2中分配针对所有的传输点或波束的上行传输资源,并在小区内所有或一部分传输点或波束上同步发送竞争解决消息Msg4。Alternatively, the terminal allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
实施中,所述随机接入响应中携带的传输点或波束的信息包括以下信息之一或者其组合:In an implementation, the information about the transmission point or the beam carried in the random access response includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
其中,在图20中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器2000代表的一个或多个处理器和存储器2020代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些 都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机2010可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器2000负责管理总线架构和通常的处理,存储器2020可以存储处理器2000在执行操作时所使用的数据。Wherein, in FIG. 20, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 2000 and various circuits of memory represented by memory 2020. The bus architecture also links various other circuits such as peripherals, voltage regulators, and power management circuits. They are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 2010 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 2000 is responsible for managing the bus architecture and the usual processing, and the memory 2020 can store data used by the processor 2000 in performing operations.
图21为终端结构示意图,如图所示,终端包括:21 is a schematic structural diagram of a terminal. As shown in the figure, the terminal includes:
处理器2100,用于读取存储器2120中的程序,执行下列过程:The processor 2100 is configured to read a program in the memory 2120 and perform the following process:
根据随机接入响应确定所述传输点或波束;Determining the transmission point or beam according to a random access response;
收发机2110,用于在处理器2100的控制下接收和发送数据,执行下列过程:The transceiver 2110 is configured to receive and send data under the control of the processor 2100, and performs the following processes:
在随机接入过程中,接收随机接入响应,所述随机接入响应携带有小区内向终端提供信令和/或数据传输的传输点或波束的信息;Receiving, in a random access procedure, a random access response, where the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to a terminal in the cell;
根据所述传输点或波束进行TRP/Beam级传输。TRP/Beam level transmission is performed according to the transmission point or beam.
实施中,进一步包括:In implementation, it further includes:
在从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送Msg1,所述系统消息是采用小区所有或一部分传输点或波束同步发送的方式发送的。After acquiring the cell-level random access resource configuration from the received system message, the Msg1 is sent in the cell according to the random access resource configuration, where the system message is sent by using all or part of the transmission point or beam synchronous transmission of the cell. .
实施中,进一步包括:In implementation, it further includes:
在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对特定的传输点或波束时,根据随机接入响应中携带的传输点或波束的信息接收竞争解决消息Msg4;Sending an uplink transmission on the uplink resource allocated in the Msg2, where the uplink resource allocation is for a specific transmission point or beam, and receiving the contention resolution message Msg4 according to the information of the transmission point or the beam carried in the random access response;
或者,在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对所有的传输点或波束时,接收小区内所有的传输点或波束同步发送的竞争解决消息Msg4。Alternatively, the uplink transmission is sent on the uplink resource allocated in the Msg2, and the uplink resource allocation is a contention resolution message Msg4 sent by all transmission points or beams in the receiving cell for all transmission points or beams.
实施中,根据所述随机接入响应确定所述传输点或波束,是根据在发送所述随机接入响应时,与该随机接入响应一起发送的传输点或波束特有的参考信号检测确定的。In an implementation, determining, according to the random access response, the transmission point or the beam is determined according to a transmission point or a beam-specific reference signal detected by the random access response when the random access response is sent. .
实施中,进一步包括:In implementation, it further includes:
未发起随机接入的终端通过随机接入响应消息,获取小区内全部传输点或波束的信息,检测当前工作的传输点或波束,或,随机接入失败的终端使用已接收到的小区内全部传输点或波束的信息,检测当前工作的传输点或波束;The terminal that does not initiate the random access obtains the information of all the transmission points or beams in the cell through the random access response message, and detects the currently working transmission point or beam, or the terminal that fails the random access uses all the received cells. Transmitting point or beam information to detect the current working transmission point or beam;
在检测出的传输点或波束上发送Msg1。Send Msg1 on the detected transmission point or beam.
实施中,所述随机接入响应携带有所述传输点或波束的信息,是在发送的随机接入响应与该传输点或波束的特有的参考信号一起发送的时,根据检测到的该特有的参考信号确定所述传输点或波束。In an implementation, the random access response carries the information about the transmission point or the beam, and when the sent random access response is sent together with the unique reference signal of the transmission point or the beam, according to the detected unique feature The reference signal determines the transmission point or beam.
实施中,所述传输点或波束的信息包括以下信息之一或者其组合: In implementation, the information of the transmission point or beam includes one or a combination of the following information:
TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
实施中,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。In implementation, the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
其中,在图21中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器2100代表的一个或多个处理器和存储器2120代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机2110可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口2130还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。In FIG. 21, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 2100 and various circuits of memory represented by memory 2120. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 2110 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 2130 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
处理器2100负责管理总线架构和通常的处理,存储器2120可以存储处理器2100在执行操作时所使用的数据。The processor 2100 is responsible for managing the bus architecture and general processing, and the memory 2120 can store data used by the processor 2100 in performing operations.
综上所述,在本申请实施例提供的技术方案中,在随机接入过程中,通过随机接入响应向终端提供小区内具体传输单元信息,如TRP/Beam的信息,终端在后续传输中根据该信息进行TRP/Beam识别和TRP/Beam级传输。In summary, in the technical solution provided by the embodiment of the present application, in the random access process, the specific transmission unit information in the cell, such as TRP/Beam information, is provided to the terminal through a random access response, and the terminal is in subsequent transmission. Based on this information, TRP/Beam identification and TRP/Beam level transmission are performed.
方案中还提供了三种TRP/Beam信令和/或数据传输方式;还区分无TRP/Beam信息UE和已有TRP/Beam信息UE的随机接入过程。Three TRP/Beam signaling and/or data transmission modes are also provided in the scheme; the random access procedure of the UE without TRP/Beam information and the existing TRP/Beam information UE is also distinguished.
采用实施例提供的技术方案,可以使UE在随机接入过程中进行TRP/Beam识别,相对于小区级信令和数据传输方式,如随机接入过程中的消息需要由小区内的全部TRP/Beam同步发送和接收,具有以下优点:一来增加空口资源开销,降低系统容量;二来增加网络侧和终端耗电;三来由于终端不能识别TRP/Beam,不能进行精确的信道估计测量和精准的功控,不利于信令和数据传输可靠性的提高。因此,UE在需要与网络侧进行信令和数据传输的时候需要能识别TRP/Beam,以降低资源开销,增加系统容量,同时提高传输可靠性。With the technical solution provided by the embodiment, the UE can perform TRP/Beam identification in the random access process, and the message in the random access process needs to be all TRP/ in the cell relative to the cell-level signaling and data transmission mode. Beam synchronous transmission and reception has the following advantages: firstly increase the air interface resource overhead and reduce the system capacity; secondly, increase the power consumption of the network side and the terminal; thirdly, because the terminal cannot recognize the TRP/Beam, accurate channel estimation measurement and accuracy cannot be performed. The power control is not conducive to the improvement of signaling and data transmission reliability. Therefore, the UE needs to be able to identify TRP/Beam when it needs to perform signaling and data transmission with the network side, so as to reduce resource overhead, increase system capacity, and improve transmission reliability.
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图 和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present application is a flowchart of a method, device (system), and computer program product according to an embodiment of the present application. And / or block diagram to describe. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。 It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims (48)

  1. 一种新一代无线通信系统中的传输点或波束的指示方法,其特征在于,包括:A method for indicating a transmission point or a beam in a new generation wireless communication system, comprising:
    网络侧确定小区内向终端提供信令和/或数据传输的传输点或波束;The network side determines a transmission point or beam that provides signaling and/or data transmission to the terminal in the cell;
    在随机接入过程中,向终端发送随机接入响应,所述随机接入响应中携带所述传输点TRP或波束Beam的信息。In the random access process, a random access response is sent to the terminal, where the random access response carries information of the transmission point TRP or the beam Beam.
  2. 如权利要求1所述的方法,其特征在于,小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点,或与收到Msg1的上行波束相对应的上下行波束对;The method according to claim 1, wherein the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the receiving terminal, or the uplink beam of the received Msg1. Corresponding uplink and downlink beam pairs;
    或,是小区内所有的传输点或波束。Or, it is all transmission points or beams in the cell.
  3. 如权利要求2所述的方法,其特征在于,所述随机接入响应携带有所述传输点或波束的信息,是在发送所述随机接入响应时,与该传输点或波束的特有的参考信号一起发送,该特有的参考信号用以使终端在检测到该特有的参考信号后能确定所述传输点或波束。The method according to claim 2, wherein the random access response carries information of the transmission point or beam, which is specific to the transmission point or beam when the random access response is transmitted. The reference signal is sent together, and the unique reference signal is used to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
  4. 如权利要求3所述的方法,其特征在于,携带所述特有的参考信号是指通过随机接入无线网络临时识别RA-RNTI加扰所述随机接入响应,该RA-RNTI是将发送Msg1的传输点或波束标识作为输入参数计算获取的。The method according to claim 3, wherein the carrying the unique reference signal means that the random access response is temporarily identified by a random access radio network, and the RA-RNTI is to send the Msg1. The transmission point or beam identification is calculated as an input parameter.
  5. 如权利要求1所述的方法,其特征在于,进一步包括:The method of claim 1 further comprising:
    接收终端发送的Msg1,所述Msg1是在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送的Msg1,所述系统消息是网络侧采用小区所有或一部分传输点或波束同步发送的方式发送的。Receiving the Msg1 sent by the terminal, where the Msg1 is sent by the terminal according to the random access resource configuration after the terminal obtains the cell-level random access resource configuration from the received system message, where the system message is adopted by the network side. Transmitted by all or part of the transmission point or beam synchronous transmission of the cell.
  6. 如权利要求5所述的方法,其特征在于,进一步包括:The method of claim 5, further comprising:
    为终端在Msg2中分配针对特定的传输点或波束的上行传输的资源,并在该传输点或波束上发送竞争解决消息Msg4;Allocating a resource for uplink transmission of a specific transmission point or beam in the Msg2, and transmitting a contention resolution message Msg4 on the transmission point or beam;
    或者,为终端在Msg2中分配针对所有的传输点或波束的上行传输资源,并在小区内所有或一部分传输点或波束上同步发送竞争解决消息Msg4。Alternatively, the terminal allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
  7. 如权利要求1所述的方法,其特征在于,所述随机接入响应中携带的传输点或波束的信息包括以下信息之一或者其组合:The method according to claim 1, wherein the information of the transmission point or the beam carried in the random access response comprises one or a combination of the following information:
    TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源物理随机接入信道PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource physical random access channel PRACH information, TRP/Beam-level preamble sequence information.
  8. 如权利要求1所述的方法,其特征在于,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。 The method according to claim 1, wherein the random access response is a random access response Msg2 sent by all or a part of transmission points or beams in the cell.
  9. 一种新一代无线通信系统中的传输方法,其特征在于,包括:A transmission method in a new generation wireless communication system, comprising:
    在随机接入过程中,终端接收随机接入响应,所述随机接入响应携带有小区内向终端提供信令和/或数据传输的传输点或波束的信息;In the random access process, the terminal receives a random access response, and the random access response carries information about a transmission point or a beam that provides signaling and/or data transmission to the intra-cell terminal;
    根据所述随机接入响应确定所述传输点或波束;Determining the transmission point or beam according to the random access response;
    终端根据所述传输点或波束进行TRP/Beam级传输。The terminal performs TRP/Beam level transmission according to the transmission point or beam.
  10. 如权利要求9所述的方法,其特征在于,进一步包括:The method of claim 9 further comprising:
    在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送Msg1,所述系统消息是采用小区所有或一部分传输点或波束同步发送的方式发送的。After the terminal obtains the cell-level random access resource configuration from the received system message, the Msg1 is sent in the cell according to the random access resource configuration, and the system message is sent by using all or part of the transmission point or beam synchronization of the cell. of.
  11. 如权利要求10所述的方法,其特征在于,进一步包括:The method of claim 10, further comprising:
    在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对特定的传输点或波束时,根据随机接入响应中携带的传输点或波束的信息接收竞争解决消息Msg4;Transmitting an uplink transmission on the uplink resource allocated by the terminal in the Msg2, where the uplink resource allocation is for a specific transmission point or beam, and receiving the contention resolution message Msg4 according to the information of the transmission point or the beam carried in the random access response;
    或者,在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对所有的传输点或波束时,接收小区内所有的传输点或波束同步发送的竞争解决消息Msg4。Alternatively, the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is a contention resolution message Msg4 sent by all transmission points or beams in the receiving cell for all transmission points or beams.
  12. 如权利要求10所述的方法,其特征在于,根据所述随机接入响应确定所述传输点或波束,是根据在发送所述随机接入响应时,与该随机接入响应一起发送的传输点或波束特有的参考信号检测确定的。The method of claim 10, wherein determining the transmission point or beam according to the random access response is based on a transmission sent with the random access response when transmitting the random access response Point or beam specific reference signal detection is determined.
  13. 如权利要求9所述的方法,其特征在于,进一步包括:The method of claim 9 further comprising:
    未发起随机接入的终端通过随机接入响应消息,获取小区内全部传输点或波束的信息,检测当前工作的传输点或波束,或,随机接入失败的终端使用已接收到的小区内全部传输点或波束的信息,检测当前工作的传输点或波束;The terminal that does not initiate the random access obtains the information of all the transmission points or beams in the cell through the random access response message, and detects the currently working transmission point or beam, or the terminal that fails the random access uses all the received cells. Transmitting point or beam information to detect the current working transmission point or beam;
    在检测出的传输点或波束上发送Msg1。Send Msg1 on the detected transmission point or beam.
  14. 如权利要求9所述的方法,其特征在于,所述随机接入响应携带有所述传输点或波束的信息,是在发送的随机接入响应与该传输点或波束的特有的参考信号一起发送的时,根据检测到的该特有的参考信号确定所述传输点或波束。The method according to claim 9, wherein the random access response carries information of the transmission point or beam, and the random access response is transmitted together with a unique reference signal of the transmission point or beam. At the time of transmission, the transmission point or beam is determined based on the detected unique reference signal.
  15. 如权利要求9所述的方法,其特征在于,所述传输点或波束的信息包括以下信息之一或者其组合:The method of claim 9, wherein the information of the transmission point or beam comprises one or a combination of the following information:
    TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
  16. 如权利要求9所述的方法,其特征在于,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。 The method according to claim 9, wherein the random access response is a random access response Msg2 transmitted by all or a part of transmission points or beams in the cell.
  17. 一种新一代无线通信系统中的传输点或波束指示装置,其特征在于,包括:A transmission point or beam indicating device in a new generation wireless communication system, comprising:
    网络侧确定模块,用于在网络侧确定小区内向终端提供信令和/或数据传输的传输点或波束;a network side determining module, configured to determine, at the network side, a transmission point or a beam that provides signaling and/or data transmission to the terminal in the cell;
    发送模块,用于在随机接入过程中,向终端发送随机接入响应,所述随机接入响应中携带所述传输点或波束Beam的信息。And a sending module, configured to send a random access response to the terminal in the random access process, where the random access response carries information about the transmission point or the beam Beam.
  18. 如权利要求17所述的装置,其特征在于,网络侧确定模块进一步用于确定小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点,或与收到Msg1的上行波束相对应的上下行波束对;或,是小区内所有的传输点或波束。The apparatus according to claim 17, wherein the network side determining module is further configured to determine a transmission point or a beam for providing signaling and/or data transmission to the terminal in the cell, and is a transmission point of the Msg1 sent by the terminal, or The uplink and downlink beam pairs corresponding to the uplink beam that receives the Msg1; or, all the transmission points or beams in the cell.
  19. 如权利要求18所述的装置,其特征在于,发送模块进一步用于在所述随机接入响应携带有所述传输点或波束的信息时,是在发送所述随机接入响应时,与该传输点或波束的特有的参考信号一起发送,该特有的参考信号用以使终端在检测到该特有的参考信号后能确定所述传输点或波束。The apparatus according to claim 18, wherein the sending module is further configured to: when the random access response carries information of the transmission point or beam, when the random access response is sent, The unique reference signal of the transmission point or the beam is sent together, and the unique reference signal is used to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
  20. 如权利要求19所述的装置,其特征在于,发送模块进一步用于在携带所述特有的参考信号时,是通过RA-RNTI加扰所述随机接入响应,该RA-RNTI是将发送Msg1的传输点或波束标识作为输入参数计算获取的。The apparatus according to claim 19, wherein the sending module is further configured to: when carrying the unique reference signal, scrambling the random access response by using an RA-RNTI, where the RA-RNTI is to send the Msg1 The transmission point or beam identification is calculated as an input parameter.
  21. 如权利要求17所述的装置,其特征在于,进一步包括:The device of claim 17 further comprising:
    网络侧接收模块,用于接收终端发送的Msg1,所述Msg1是在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送的Msg1,所述系统消息是网络侧采用小区所有或一部分传输点或波束同步发送的方式发送的。The network side receiving module is configured to receive the Msg1 sent by the terminal, where the Msg1 is the Msg1 sent in the cell according to the random access resource configuration after the terminal acquires the cell-level random access resource configuration from the received system message. The system message is sent by the network side by means of all or part of the transmission point or beam synchronization transmission of the cell.
  22. 如权利要求21所述的装置,其特征在于,发送模块进一步用于为终端在Msg2中分配针对特定的传输点或波束的上行传输的资源,并在该传输点或波束上发送竞争解决消息Msg4;或者,为终端在Msg2中分配针对所有的传输点或波束的上行传输资源,并在小区内所有或一部分传输点或波束上同步发送竞争解决消息Msg4。The apparatus according to claim 21, wherein the sending module is further configured to allocate, for the terminal, the uplink transmission resource for the specific transmission point or beam in the Msg2, and send the contention resolution message Msg4 on the transmission point or the beam. Or, the terminal allocates uplink transmission resources for all transmission points or beams in Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of transmission points or beams in the cell.
  23. 如权利要求17所述的装置,其特征在于,所述随机接入响应中携带的传输点或波束的信息包括以下信息之一或者其组合:The apparatus according to claim 17, wherein the information of the transmission point or the beam carried in the random access response comprises one or a combination of the following information:
    TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
  24. 如权利要求17所述的装置,其特征在于,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。The apparatus according to claim 17, wherein said random access response is a random access response Msg2 transmitted by all or a part of transmission points or beams in the cell.
  25. 一种新一代无线通信系统中的传输装置,其特征在于,包括:A transmission device in a new generation wireless communication system, comprising:
    终端侧接收模块,用于在随机接入过程中,终端接收随机接入响应,所述随机接入响 应携带有小区内向终端提供信令和/或数据传输的传输点或波束的信息;a terminal side receiving module, configured to receive a random access response during a random access process, where the random access ringing Should carry information about transmission points or beams that provide signaling and/or data transmission to the in-cell terminal;
    终端侧确定模块,用于根据所述随机接入响应确定所述传输点或波束;a terminal side determining module, configured to determine the transmission point or a beam according to the random access response;
    传输模块,用于终端根据所述传输点或波束进行TRP/Beam级传输。And a transmission module, configured to perform TRP/Beam level transmission according to the transmission point or the beam.
  26. 如权利要求25所述的装置,其特征在于,进一步包括:The device of claim 25, further comprising:
    终端侧发送模块,用于在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送Msg1,所述系统消息是采用小区所有或一部分传输点或波束同步发送的方式发送的。The terminal side sending module is configured to: after the terminal acquires the cell-level random access resource configuration from the received system message, send the Msg1 in the cell according to the random access resource configuration, where the system message uses all or part of the transmission point of the cell. Or sent by means of beam synchronous transmission.
  27. 如权利要求26所述的装置,其特征在于,终端侧接收模块进一步用于在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对特定的传输点或波束时,根据随机接入响应中携带的传输点或波束的信息接收竞争解决消息Msg4;或者,在终端在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对所有的传输点或波束时,接收小区内所有的传输点或波束同步发送的竞争解决消息Msg4。The apparatus according to claim 26, wherein the terminal side receiving module is further configured to send an uplink transmission on an uplink resource allocated by the terminal in the Msg2, where the uplink resource allocation is for a specific transmission point or beam, according to a random The information about the transmission point or the beam carried in the access response receives the contention resolution message Msg4; or, the uplink transmission is sent on the uplink resource allocated by the terminal in the Msg2, and the uplink resource allocation is for all the transmission points or beams, the receiving cell The contention resolution message Msg4 sent by all transmission points or beams simultaneously.
  28. 如权利要求26所述的装置,其特征在于,终端侧确定模块进一步用于在根据所述随机接入响应确定所述传输点或波束时,是根据在发送所述随机接入响应时,与该随机接入响应一起发送的传输点或波束特有的参考信号检测确定的。The apparatus according to claim 26, wherein the terminal side determining module is further configured to: when determining the transmission point or beam according to the random access response, according to when the random access response is sent, The random access response is determined by detecting a transmission point or beam-specific reference signal transmitted together.
  29. 如权利要求25所述的装置,其特征在于,终端侧确定模块进一步用于在未发起随机接入的终端通过随机接入响应消息,获取小区内全部传输点或波束的信息,检测当前工作的传输点或波束,或,在随机接入失败的终端使用已接收到的小区内全部传输点或波束的信息,检测当前工作的传输点或波束;The device according to claim 25, wherein the terminal side determining module is further configured to: obtain, by using a random access response message, a terminal that does not initiate random access, acquire information of all transmission points or beams in the cell, and detect current working a transmission point or a beam, or a terminal that fails the random access uses information of all transmission points or beams in the received cell to detect a currently operating transmission point or beam;
    进一步包括:Further includes:
    终端侧发送模块,用于在检测出的传输点或波束上发送Msg1。The terminal side sending module is configured to send Msg1 on the detected transmission point or beam.
  30. 如权利要求25所述的装置,其特征在于,终端侧确定模块进一步在确定所述随机接入响应携带有所述传输点或波束的信息时,是在发送的随机接入响应与该传输点或波束的特有的参考信号一起发送的时,根据检测到的该特有的参考信号确定所述传输点或波束。The apparatus according to claim 25, wherein the terminal side determining module is further configured to transmit the random access response and the transmission point when determining that the random access response carries information of the transmission point or beam When the unique reference signal of the beam is transmitted together, the transmission point or beam is determined according to the detected unique reference signal.
  31. 如权利要求25所述的装置,其特征在于,所述传输点或波束的信息包括以下信息之一或者其组合:The apparatus of claim 25, wherein the information of the transmission point or beam comprises one or a combination of the following information:
    TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
  32. 如权利要求25所述的装置,其特征在于,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。 The apparatus according to claim 25, wherein the random access response is a random access response Msg2 transmitted by all or a part of transmission points or beams in the cell.
  33. 一种新一代无线通信系统中的传输点或波束指示装置,其特征在于,包括:A transmission point or beam indicating device in a new generation wireless communication system, comprising:
    处理器,用于读取存储器中的程序,执行下列过程:A processor for reading a program in the memory, performing the following process:
    在确定小区内向终端提供信令和/或数据传输的传输点或波束;Determining a transmission point or beam that provides signaling and/or data transmission to the terminal within the cell;
    收发机,用于在处理器的控制下接收和发送数据,执行下列过程:A transceiver for receiving and transmitting data under the control of a processor, performing the following processes:
    在随机接入过程中,向终端发送随机接入响应,所述随机接入响应中携带所述传输点或波束Beam的信息。In the random access process, a random access response is sent to the terminal, where the random access response carries information of the transmission point or the beam Beam.
  34. 如权利要求33所述的装置,其特征在于,小区内向终端提供信令和/或数据传输的传输点或波束,是收到终端发送的Msg1的传输点,或与收到Msg1的上行波束相对应的上下行波束对;The apparatus according to claim 33, wherein the transmission point or beam for providing signaling and/or data transmission to the terminal in the cell is the transmission point of the Msg1 sent by the receiving terminal, or the uplink beam of the received Msg1. Corresponding uplink and downlink beam pairs;
    或,是小区内所有的传输点或波束。Or, it is all transmission points or beams in the cell.
  35. 如权利要求34所述的装置,其特征在于,所述随机接入响应携带有所述传输点或波束的信息,是在发送所述随机接入响应时,与该传输点或波束的特有的参考信号一起发送,该特有的参考信号用以使终端在检测到该特有的参考信号后能确定所述传输点或波束。The apparatus according to claim 34, wherein said random access response carries information of said transmission point or beam, and is specific to said transmission point or beam when said random access response is transmitted The reference signal is sent together, and the unique reference signal is used to enable the terminal to determine the transmission point or beam after detecting the unique reference signal.
  36. 如权利要求35所述的装置,其特征在于,携带所述特有的参考信号是指通过RA-RNTI加扰所述随机接入响应,该RA-RNTI是将发送Msg1的传输点或波束标识作为输入参数计算获取的。The apparatus according to claim 35, wherein the carrying the unique reference signal refers to scrambling the random access response by using an RA-RNTI, where the RA-RNTI is a transmission point or a beam identifier that transmits Msg1 The input parameters are calculated and obtained.
  37. 如权利要求33所述的装置,其特征在于,进一步包括:The device of claim 33, further comprising:
    接收终端发送的Msg1,所述Msg1是在终端从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送的Msg1,所述系统消息是网络侧采用小区所有或一部分传输点或波束同步发送的方式发送的。Receiving the Msg1 sent by the terminal, where the Msg1 is sent by the terminal according to the random access resource configuration after the terminal obtains the cell-level random access resource configuration from the received system message, where the system message is adopted by the network side. Transmitted by all or part of the transmission point or beam synchronous transmission of the cell.
  38. 如权利要求37所述的装置,其特征在于,进一步包括:The device of claim 37, further comprising:
    为终端在Msg2中分配针对特定的传输点或波束的上行传输的资源,并在该传输点或波束上发送竞争解决消息Msg4;Allocating a resource for uplink transmission of a specific transmission point or beam in the Msg2, and transmitting a contention resolution message Msg4 on the transmission point or beam;
    或者,为终端在Msg2中分配针对所有的传输点或波束的上行传输资源,并在小区内所有或一部分传输点或波束上同步发送竞争解决消息Msg4。Alternatively, the terminal allocates uplink transmission resources for all transmission points or beams in the Msg2, and synchronously transmits the contention resolution message Msg4 on all or a part of the transmission points or beams in the cell.
  39. 如权利要求33所述的装置,其特征在于,所述随机接入响应中携带的传输点或波束的信息包括以下信息之一或者其组合:The apparatus according to claim 33, wherein the information of the transmission point or the beam carried in the random access response comprises one or a combination of the following information:
    TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH information, TRP/Beam-level preamble sequence information.
  40. 如权利要求33所述的装置,其特征在于,所述随机接入响应是小区内所有或一 部分传输点或波束同步发送的随机接入响应Msg2。The apparatus according to claim 33, wherein said random access response is all or one of cells The random access response Msg2 sent by part of the transmission point or beam synchronization.
  41. 一种新一代无线通信系统中的传输装置,其特征在于,包括:A transmission device in a new generation wireless communication system, comprising:
    处理器,用于读取存储器中的程序,执行下列过程:A processor for reading a program in the memory, performing the following process:
    根据随机接入响应确定所述传输点或波束;Determining the transmission point or beam according to a random access response;
    收发机,用于在处理器的控制下接收和发送数据,执行下列过程:A transceiver for receiving and transmitting data under the control of a processor, performing the following processes:
    在随机接入过程中,接收随机接入响应,所述随机接入响应携带有小区内向所述传输装置提供信令和/或数据传输的传输点或波束的信息;Receiving, in a random access procedure, a random access response, the random access response carrying information of a transmission point or a beam that provides signaling and/or data transmission to the transmitting device in the cell;
    根据所述传输点或波束进行TRP/Beam级传输。TRP/Beam level transmission is performed according to the transmission point or beam.
  42. 如权利要求41所述的传输装置,其特征在于,进一步包括:The transmission device of claim 41, further comprising:
    在从接收的系统消息中获取到小区级随机接入资源配置后,根据随机接入资源配置在小区内发送Msg1,所述系统消息是采用小区所有或一部分传输点或波束同步发送的方式发送的。After acquiring the cell-level random access resource configuration from the received system message, the Msg1 is sent in the cell according to the random access resource configuration, where the system message is sent by using all or part of the transmission point or beam synchronous transmission of the cell. .
  43. 如权利要求42所述的传输装置,其特征在于,进一步包括:The transmission device of claim 42, further comprising:
    在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对特定的传输点或波束时,根据随机接入响应中携带的传输点或波束的信息接收竞争解决消息Msg4;Sending an uplink transmission on the uplink resource allocated in the Msg2, where the uplink resource allocation is for a specific transmission point or beam, and receiving the contention resolution message Msg4 according to the information of the transmission point or the beam carried in the random access response;
    或者,在Msg2中分配的上行资源上发送上行传输,该上行资源分配是针对所有的传输点或波束时,接收小区内所有的传输点或波束同步发送的竞争解决消息Msg4。Alternatively, the uplink transmission is sent on the uplink resource allocated in the Msg2, and the uplink resource allocation is a contention resolution message Msg4 sent by all transmission points or beams in the receiving cell for all transmission points or beams.
  44. 如权利要求42所述的传输装置,其特征在于,根据所述随机接入响应确定所述传输点或波束,是根据在发送所述随机接入响应时,与该随机接入响应一起发送的传输点或波束特有的参考信号检测确定的。The transmission device according to claim 42, wherein the determining the transmission point or beam according to the random access response is sent according to the random access response when transmitting the random access response. The transmission point or beam-specific reference signal detection is determined.
  45. 如权利要求41所述的传输装置,其特征在于,进一步包括:The transmission device of claim 41, further comprising:
    未发起随机接入的所述传输装置通过随机接入响应消息,获取小区内全部传输点或波束的信息,检测当前工作的传输点或波束,或,随机接入失败的所述传输装置使用已接收到的小区内全部传输点或波束的信息,检测当前工作的传输点或波束;The transmitting device that does not initiate the random access obtains information of all transmission points or beams in the cell through the random access response message, detects the currently working transmission point or beam, or uses the transmission device that fails the random access. Receiving information of all transmission points or beams in the received cell, and detecting a currently working transmission point or beam;
    在检测出的传输点或波束上发送Msg1。Send Msg1 on the detected transmission point or beam.
  46. 如权利要求41所述的传输装置,其特征在于,所述随机接入响应携带有所述传输点或波束的信息,是在发送的随机接入响应与该传输点或波束的特有的参考信号一起发送的时,根据检测到的该特有的参考信号确定所述传输点或波束。The transmission apparatus according to claim 41, wherein said random access response carries information of said transmission point or beam, and is a unique reference signal between said transmitted random access response and said transmission point or beam. When transmitted together, the transmission point or beam is determined based on the detected unique reference signal.
  47. 如权利要求41所述的传输装置,其特征在于,所述传输点或波束的信息包括以下信息之一或者其组合:The transmission device according to claim 41, wherein the information of the transmission point or beam comprises one or a combination of the following information:
    TRP/Beam级参考信号信息、TRP/Beam ID、TRP/Beam级的随机接入资源PRACH信 息、TRP/Beam级preamble序列信息。TRP/Beam-level reference signal information, TRP/Beam ID, TRP/Beam-level random access resource PRACH letter Information, TRP/Beam-level preamble sequence information.
  48. 如权利要求41所述的传输装置,其特征在于,所述随机接入响应是小区内所有或一部分传输点或波束同步发送的随机接入响应Msg2。 The transmission apparatus according to claim 41, wherein the random access response is a random access response Msg2 transmitted by all or a part of transmission points or beams in the cell.
PCT/CN2017/100243 2016-11-02 2017-09-01 Method and apparatus for instructing and transmitting transmission point or beam of new generation wireless communication system WO2018082392A1 (en)

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