WO2020173288A1 - 被用于无线通信的用户设备、基站中的方法和装置 - Google Patents
被用于无线通信的用户设备、基站中的方法和装置 Download PDFInfo
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- WO2020173288A1 WO2020173288A1 PCT/CN2020/074322 CN2020074322W WO2020173288A1 WO 2020173288 A1 WO2020173288 A1 WO 2020173288A1 CN 2020074322 W CN2020074322 W CN 2020074322W WO 2020173288 A1 WO2020173288 A1 WO 2020173288A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
- H04L1/0038—Blind format detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0046—Code rate detection or code type detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
Definitions
- This application relates to a transmission method and device in a wireless communication system, and in particular, to a method and device that supports wireless signal forwarding. Background technique
- radio bearers In traditional cellular systems, user equipment may establish a large number of radio bearers; each radio bearer corresponds to a logical channel (Logical Channel); and the channel allocation request is initiated by higher layers, such as BSR (Buffer Status Report). Status reporting), or SR (Scheduling Request, scheduling request) are all triggered by higher layers.
- BSR Buffer Status Report
- SR Service Request, scheduling request
- the UE with higher-level connections can improve the transmission efficiency by relaying the grant-free uplink data.
- this application discloses a solution. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other arbitrarily under the condition of no conflict. Further, although the original intention of this application is for communications similar to those exempt from grants, the methods and devices in this application are also applicable to other communication structures, such as grant-based communications, communications between base stations, and so on.
- This application discloses a method used in a first node for wireless communication, which is characterized in that it includes:
- the first information is triggered at the higher layer, send a first wireless signal, where the first wireless signal includes the first information
- the first information is used to indicate the amount of data that can be sent in the buffer
- the first condition set includes a first condition
- the first condition includes that the first buffer information is transferred from the physical layer to a higher layer.
- the above method enables the physical layer of the first node to initiate a channel allocation request, which avoids processing of the first bit block by a higher layer of the first node; and shortens the relay delay.
- the higher layer of the first node does not participate in the processing of the first bit block, but it can consider the existence of the first bit block when deciding whether to trigger the first information; It accurately reflects the current buffer status, and on the other hand reduces the processing complexity of higher layers.
- the transmission of the first signal set is based on a similar exemption method, and the retransmission of the first signal set, that is, the second wireless signal, is performed by the first node that has established a higher-level connection Compared with the retransmission performed by the sender of the first signal set, the above method improves the spectral efficiency of the retransmission.
- multiple receivers perform blind detection on the first signal set at the same time, and the first node Is one of the plurality of receivers; compared with only one receiver, the probability that the first signal set is correctly decoded is greatly increased; effectively reducing the transmission of the first signal set The probability of retransmission by the user, or the MCS (Modulation Coding Status, Modulation Coding Status) and power of the first signal set are reduced; thereby, the transmission efficiency is improved.
- MCS Modulation Coding Status, Modulation Coding Status
- the above method is characterized in that it includes:
- the target information is monitored in the second air interface resource pool to determine that the first bit block has not been correctly decoded by the target receiver; specifically, according to an aspect of the present invention, the above method is characterized in that the first condition set includes The second condition, the second condition includes: there is no data available for transmission on all logical channels.
- the above method is characterized in that the first condition set includes a third condition, the first buffer information indicates a first priority, and the third condition includes: the first condition The priority is higher than the priority of any logical channel in the logical channel group that has data available for transmission.
- the above method is characterized in that the first buffer information indicates a buffer size occupied by the first bit block.
- the above method is characterized in that it includes:
- the second set of conditions Before the first wireless signal is sent, when a second set of conditions is met, trigger second information; wherein, the second information is used to request channel resources; and the second set of conditions includes the first The information is not terminated and the channel resources are not allocated.
- the above method is characterized in that it includes:
- the third set of conditions instruct the physical layer to send second information and send the second information;
- the first receiver receives first signaling, and the first signaling includes the first wireless The scheduling information of the signal; wherein the third condition set includes at least one channel resource that can be used for the second information and is configured for the transmission time interval.
- the above method is characterized in that it includes:
- the second signaling includes scheduling information of the second wireless signal, and the first bit block is used to generate the second wireless signal.
- the above method is characterized in that the first information is a buffer status report.
- This application discloses a first node used for wireless communication, which is characterized in that it includes:
- the first receiver receiving the first signal set through blind detection in the first air interface resource pool, and recovering the first bit block at the physical layer according to the first signal set;
- the first processor transfers the first buffer information from the physical layer to the higher layer; when the first condition set is met, triggers the first information at the higher layer;
- a first transmitter after the first information is triggered at the higher layer, send a first wireless signal, where the first wireless signal includes the first information;
- the first information is used to indicate the amount of data that can be sent in the buffer
- the first condition set includes a first condition
- the first condition includes that the first buffer information is transferred from the physical layer to a higher layer.
- the first bit block is used to generate a first signal set to be transmitted in the first air interface resource pool; the first information is used to indicate the amount of data that can be transmitted in the buffer;
- the condition set is met, the first information is triggered at a higher layer; the first condition set includes a first condition, and the first condition includes a first buffer Information is passed from the physical layer to a higher layer; after the first information is triggered, the first wireless signal is sent.
- the above method is characterized in that it includes:
- target information is used to indicate that the first bit block is not correctly decoded.
- the above method is characterized in that the first condition set includes a second condition, and the second condition includes: there is no data available for transmission on all logical channels.
- the above method is characterized in that the first condition set includes a third condition, the first buffer information indicates a first priority, and the third condition includes: the first condition The priority is higher than the priority of any logical channel in the logical channel group that has data available for transmission.
- the above method is characterized in that the first buffer information indicates a buffer size occupied by the first bit block.
- the above method is characterized in that, before the first wireless signal is sent, when a second set of conditions is satisfied, second information is triggered, and the second information is used for Request channel resources; the second set of conditions includes that the first information is not terminated and channel resources are not allocated.
- the above method is characterized in that it includes:
- the third condition set when the third condition set is met, the physical layer is instructed to send the second information; the third condition set includes at least one channel resource that can be used for the second information and is configured for the transmission time interval.
- the above method is characterized in that it includes:
- the first transmitter sends the second signaling
- the first receiver receiving a second wireless signal
- the second signaling includes scheduling information of the second wireless signal, and the first bit block is used to generate the second wireless signal.
- the above method is characterized in that the first information is a buffer status report.
- This application discloses a second node used for wireless communication, which is characterized in that it includes:
- a second receiver performing blind detection in the first air interface resource pool and failing to correctly decode the first bit block; receiving a first wireless signal, where the first wireless signal includes first information;
- the first bit block is used to generate a first signal set to be transmitted in the first air interface resource pool; the first information is used to indicate the amount of data that can be transmitted in the buffer; When the condition set is met, the first information is triggered at a higher layer; the first condition set includes a first condition, and the first condition includes that the first buffer information is transferred from the physical layer to the higher layer; After the first information is triggered, the first wireless signal is sent.
- this application has the following advantages:
- Fig. 1 shows a processing flowchart of a first node according to an embodiment of the present application
- Figure 2 shows a schematic diagram of a network architecture according to an embodiment of the present application
- FIG. 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application
- 4 shows a schematic diagram of two communication devices communicating with each other according to an embodiment of the present application
- FIG. 5 shows a schematic diagram of an air interface resource pool according to an embodiment of the present application
- Fig. 6 shows a flow chart of transmission of a first wireless signal according to an embodiment of the present application
- Fig. 7 shows a schematic diagram of requesting channel allocation according to an embodiment of the present application.
- Fig. 8 shows a schematic diagram of indicating that the first signal set is not correctly decoded through target information according to an embodiment of the present application
- Fig. 9 shows a schematic diagram of a first time-frequency resource pool and a second time-frequency resource pool according to an embodiment of the present application
- Fig. 10 shows a schematic diagram of resource mapping according to an embodiment of the present application
- Fig. 11 shows a schematic diagram of a first bit block according to an embodiment of the present application.
- Fig. 12 shows a schematic diagram of a first bit block according to an embodiment of the present application.
- Figure 13 shows a schematic diagram of a second bit block according to an embodiment of the present application.
- Fig. 14 shows a structural block diagram of a processing device in the first node according to an embodiment of the present application
- Fig. 15 shows a structural block diagram of a processing device in the second node according to an embodiment of the present application. detailed description
- Embodiment 1 illustrates the processing flowchart of the first node, as shown in FIG. 1.
- the first node receives the first signal set through blind detection in the first air interface resource pool in step S01, and restores the first bit block at the physical layer according to the first signal set; in step S02
- the layer transfers the first buffer information to the higher layer; when the first set of conditions is met, trigger the first information at the higher layer; in step S03, the first wireless signal is sent, and the first wireless signal includes the first information.
- the first information is used to indicate the amount of data that can be sent in the buffer
- the first condition set includes the first condition
- the first condition includes that the first buffer information is transferred from the physical layer to the Higher level.
- the first signal set includes K wireless signals
- the first bit block includes K bit sub-blocks
- the K bit sub-blocks are respectively used to generate the K wireless signals, so
- the K is a positive integer greater than 1; the K wireless signals are sent by K senders respectively.
- the first signal set is sent on one physical layer channel.
- the first node simultaneously retransmits data for K senders, which further improves the spectrum efficiency of small packet transmission.
- the first signal set is sent by one user equipment.
- the K senders are respectively K user equipments.
- the first signal set is sent by one sender.
- the first information is used to request channel resources.
- the first information is BSR (Buffer Status Report, Buffer Status Report).
- the bits in the first bit block are not passed to the higher layer.
- the target recipient of the first bit block does not include the first node.
- the first information indicates data that can be used for sending (avai labl e for transmi ss ion) in an uplink buffer associated with a MAC (Media Access Control) entity (Ent ity) The amount of information.
- MAC Media Access Control
- the first information includes a buffer size (Buffer Si ze).
- the identity of the target recipient is used to generate the first signal set.
- the identity of the target recipient is used to scramble the first bit block.
- the identity of the target recipient is used to scramble the CRC in the first bit block.
- the identity of the target receiver is used to generate a DMRS (DeModulation Reference Signal, demodulation reference signal) in the first signal set.
- DMRS Demodulation Reference Signal, demodulation reference signal
- the first wireless signal is sent on PUSCH (Physical Uplink Shared CHannel, physical uplink shared channel).
- PUSCH Physical Uplink Shared CHannel, physical uplink shared channel
- the first wireless signal is sent on PUCCH (Physical Uplink Control CHannel, physical uplink control channel).
- PUCCH Physical Uplink Control CHannel, physical uplink control channel
- the first wireless signal is sent on the PSSCH C Physical Sidelink Shared CHannel.
- the first node is user equipment.
- the first node is a base station device.
- the first node is a relay node.
- the first air interface resource pool includes a first time-frequency resource pool.
- the first air interface resource pool occupies a positive integer number of multi-carrier symbols in the time domain, and a positive integer number of subcarriers in the frequency domain.
- the first air interface resource pool occupies multiple multiple-access signatures on the code domain.
- the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing) symbol.
- the multi-carrier symbol is an SC-FDMA (Single Carrier Frequency Division Multiplexing Access, single carrier frequency division multiple access) symbol.
- SC-FDMA Single Carrier Frequency Division Multiplexing Access, single carrier frequency division multiple access
- the multi-carrier symbol is an FBMC (Filter Bank Multi-Carrier, filter bank multi-carrier) symbol.
- FBMC Filter Bank Multi-Carrier, filter bank multi-carrier
- the first bit block includes multiple bits.
- the first bit block includes a plurality of bits arranged in sequence.
- the first signal set is sent on a PUSCH (Physical Uplink Shared Channel, physical uplink shared channel), and the first signal set is sent by a UE.
- PUSCH Physical Uplink Shared Channel, physical uplink shared channel
- the first bit block is an output after the first signal set is sequentially channel equalized, broadband symbol demodulation, de-resource particle mapping, de-layer mapping, de-scrambling, and channel-decoding.
- the first bit block is the output of the first signal set after channel equalization, broadband symbol demodulation, resource particle mapping, descrambling, and channel decoding.
- the first bit block includes K bit sub-blocks, the first signal set includes K wireless signals; and the K is a positive integer greater than one.
- the K bit sub-blocks are respectively obtained after the K wireless signals sequentially undergo channel equalization, broadband symbol demodulation, de-resource particle mapping, de-layer mapping, descrambling, and channel decoding.
- the K bit sub-blocks are respectively obtained after the K wireless signals undergo channel equalization, broadband symbol demodulation, resource particle mapping, descrambling, and channel decoding.
- the channel coding corresponding to the channel decoding is based on a polar code (Polar Coding).
- the channel coding corresponding to the channel decoding is based on LDPC (Low Density Parity Check, low density check) coding.
- the K wireless signals are respectively sent on K PUSCHs.
- the first bit block is formed by sequentially concatenating the K bit sub-blocks.
- the first bit block indicates the K.
- the first bit block indicates the K senders.
- the first bit block includes K identities, and the K identities respectively identify the K senders.
- the first information includes the K identities.
- the first information indicates a buffer size occupied by the first bit block (buffer s ize).
- the first information indicates the number of bits included in the first bit block.
- each of the K identities includes E1 bits, and the E1 is a positive integer greater than one.
- the E1 is 8.
- the K identities are K RNTIs (Radio Network Temporary Identifier, wireless network identities) respectively.
- the phrase receiving the first signal set through blind detection in the first air interface resource pool includes: the first signal set is exempt.
- the phrase receiving the first signal set through blind detection in the first air interface resource pool includes: there is no change between the target receiver of the first signal set and the sender of the first signal set High-level connection.
- the phrase receiving the first signal set through blind detection in the first air interface resource pool includes: there is no higher-level connection between the first node and the sender of the first signal set.
- the higher layer connection includes an RRC (Radio Resource Control, radio resource control) layer connection.
- RRC Radio Resource Control, radio resource control
- the higher-level connection includes a NAS (Non Access System, non-access system) connection.
- NAS Non Access System, non-access system
- the higher layer connection includes an application layer connection.
- the phrase receiving the first signal set through blind detection in the first air interface resource pool includes: before the first node correctly decodes the first signal set, the first node cannot determine the Whether the first signal set is sent in the first air interface resource pool.
- the phrase receiving the first signal set through blind detection in the first air interface resource pool includes: the first node performs Q channel decoding in the first air interface resource pool, where Q is A positive integer greater than 1, each channel decoding in the Q channel decoding includes: determining whether the corresponding wireless signal is received correctly according to CRC (Cyclic Redundancy Check);
- the signal set includes Q1 wireless signals, and the Q1 wireless signals are respectively received correctly by the Q1 channel decoding in the Q channel decoding; the Q1 is a positive integer not greater than the Q.
- the Q channel decoding is based on the Viterbi algorithm.
- each channel decoding in the Q channel decoding is based on iteration.
- the Q channel decoding is based on the BP (belief propagation, credibility propagation) algorithm.
- the Q sub-channel decoder is based on LLR (Log Likelyhood Ratio, log likelihood ratio) _ on BP algorithm.
- the phrase receiving the first signal set through blind detection in the first air interface resource pool includes: the first signal set includes Q1 wireless signals, and the first node is on the first air interface resource Perform Q times of characteristic sequence detection in the pool, where Q is a positive integer greater than 1, and each characteristic sequence detection in the Q times of characteristic sequence detection includes: determining whether the corresponding wireless signal is transmitted according to the coherent detection of the sequence; The Q1 characteristic sequence detection in the Q times of characteristic sequence detection is respectively used to determine that the Q1 wireless signals are transmitted; the Q1 is a positive integer not greater than the Q.
- the physical layer is Layer 1 (Layer 1).
- the physical layer is a PHY layer.
- the first information is a buffer status report.
- the buffer status report is a regular (Regular) buffer status report (BSR).
- the buffer status report is a padding (Padding) buffer status report.
- the first condition set includes a second condition, and the second condition includes: there is no data available for transmission on all logical channels.
- the first set of conditions includes a third condition, the first buffer information indicates a first priority, and the third condition includes: the first priority is higher than all existing ones available for transmission The priority of any logical channel in the logical channel group for data.
- the first buffer information indicates a buffer size occupied by the first bit block.
- Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in FIG. 2.
- FIG. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution, Long-Term Evolution), LTE-A (Long-Term Evolution Advanced, Enhanced Long-Term Evolution) and the future 5G system.
- the LTE network architecture 200 can be called EPS (Evolved Packet System, Evolved Packet System) 200 JPS 200 can include one or more UEs (User Equipment) 201, E-UTRAN-NR (Evolved UMTS Terrestrial Radio Access Network- New wireless) 202, 5G-CN (5G-CoreNetwork, 5G core network)/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server, home subscriber server) 220 and Internet service 230.
- UEs User Equipment
- E-UTRAN-NR Evolved UMTS Terrestrial Radio Access Network- New wireless
- 5G-CN 5G-CoreNetwork, 5G core network
- EPC Evolved Packet Core
- HSS Home Subscriber Server
- UMTS corresponds to Universal Mobile Communications System (Universal Mobile Communications System).
- EPS200 can be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown in Figure 2, EPS200 provides packet switching services, but those skilled in the art will readily understand that various concepts presented throughout this application can be extended to networks that provide circuit switching services.
- E-UTRAN-NR202 includes NR (New Radio) Node B (gNB) 203 and other gNB204.
- gNB203 provides user and control plane protocol termination towards UE201.
- gNB203 may be connected via an X2 interface (e.g., backhaul) to other gNB204 o gNB203 may also be called a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (the BSS), Extended Service Set (ESS) , TRP (Transmit and Receive Point) or some other suitable term.
- gNB203 provides UE201 with an access point to 5G-CN/EPC210.
- Examples of UE201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (for example, MP3 players), cameras, game consoles, drones, aircrafts, narrowband physical network equipment, machine type communication equipment, land vehicles, automobiles, wearable devices, or any other similar functional devices.
- UE201 can also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, Mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable term.
- the gNB203 is connected to 5G-CN/EPC210 through the S 1 interface.
- the 5G-CN/EPC 210 includes MME 21 1, other MME 214, S-GW (Service Gateway, service gateway) 212, and P-GW (Packet Date Network Gateway, packet data network gateway) 213.
- MME211 is a control node that processes signaling between UE201 and 5G-CN/EPC210. In general, MME211 provides bearer and connection management. All user IP (Internet Protocol, Internet Protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW213.
- P-GW213 provides UE IP address allocation and other functions.
- the P-GW213 is connected to the Internet service 230.
- the Internet service 230 includes the operator's corresponding Internet protocol service, which may specifically include the Internet, Intranet, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem), and PS Streaming Service (PSS).
- IMS IP Multimedia Subsystem
- the first node in this application is a UE201
- the second node in this application is the gNB203.
- the sender of each wireless signal in the first signal set in this application is a UE201.
- the first node and the second node in this application are respectively a UE201, and the sender of each wireless signal in the first signal set in this application is a UE201.
- the first node supports V2V communication
- the UE 201 supports V2V communication.
- the gNB203 supports V2V communication.
- Example 3
- Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for user plane and control plane, as shown in FIG. 3, FIG. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for user plane and control plane, FIG. 3
- Layer 1 L1 layer
- PHY301 physical layer
- Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between UE and gNB through PHY301.
- the L2 layer 305 includes MAC (Medium Access Control, medium access control) sublayer 302, RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and PDCP (Packet Data Convergence Protocol, packet data). Convergence protocol) sublayer 304, these sublayers terminate at the gNB on the network side.
- the UE may have several protocol layers above the L2 layer 305, including the network layer (for example, the IP layer) that terminates at the P-GW 213 on the network side and the other end of the connection (for example, The application layer at the remote UE, server, etc.).
- the PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels.
- the PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, provides security by encrypting data packets, and provides handover support for UEs between gNBs.
- the RLC sublayer 303 provides segmentation and reassembly of upper-layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception caused by HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat request).
- HARQ Hybrid Automatic Repeat reQuest, hybrid automatic repeat request.
- the MAC sublayer 302 provides multiplexing between logical and transport channels.
- the MAC sublayer 302 is also responsible for allocating various radio resources (for example, resource blocks) in a cell among UEs.
- the MAC sublayer 302 is also responsible for HARQ operations.
- the radio protocol architectures for the UE and gNB are basically the same for the physical layer 301 and the L2 layer 305, but there is no header compression function for the control plane.
- the control plane also includes an RRC (Radio Resource Control, radio resource control) sublayer 306 in layer 3 (L3 layer).
- the RRC sublayer 306 is responsible for obtaining radio resources (ie, radio bearers) and uses RRC signaling between the gNB and the UE to set the lower layer.
- the wireless protocol architecture in FIG. 3 is applicable to the first node in this application.
- the wireless protocol architecture in FIG. 3 is applicable to the second node in this application.
- the L2 layer 305 belongs to a higher layer.
- the RRC sublayer 306 in the L3 layer belongs to a higher layer.
- the channel between the PHY301 and the MAC sublayer 302 is a transmission channel.
- the channel between the RLC sublayer 303 and the MAC sublayer 302 is a logical channel.
- Embodiment 4 illustrates a schematic diagram of two communication devices communicating with each other, as shown in FIG. 4.
- Fig. 4 is a block diagram of a node 410 and a node 450 communicating with each other in the access network.
- the node 410 includes a controller/processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitter/receiver 418, and an antenna 420.
- the node 450 includes a controller/processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter/receiver 454, and an antenna 452 .
- the upper layer data packet is provided to the controller/processor 475.
- the controller/processor 475 implements the functionality of the L2 layer.
- the transmission processor 416 and the multi-antenna transmission processor 471 implement various signal processing functions for the L1 layer (ie, physical layer).
- the transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the node 450, and is based on various modulation schemes (eg, binary phase shift keying (BPSK), quadrature phase shift keying (QPSK)) , M phase shift keying (M-PSK), M quadrature amplitude modulation (M-QAM)) signal cluster mapping.
- BPSK binary phase shift keying
- QPSK quadrature phase shift keying
- M-PSK M phase shift keying
- M-QAM M quadrature amplitude modulation
- the multi-antenna transmission processor 471 performs digital spatial precoding/beamforming processing on the coded and modulated symbols to generate one or more spatial streams.
- the transmit processor 416 maps each spatial stream to subcarriers, multiplexes it with a reference signal (for example, pilot) in the time domain and/or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate The physical channel that carries the multi-carrier symbol stream in the time domain.
- IFFT inverse fast Fourier transform
- the multi-antenna transmitting processor 471 performs transmission simulation on the time-domain multi-carrier symbol stream Precoding/beamforming operation.
- Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmission processor 471 into a radio frequency stream, and then provides it to a different antenna 420.
- each receiver 454 receives a signal through its corresponding antenna 452.
- Each receiver 454 recovers the information modulated on the radio frequency carrier, and converts the radio frequency stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456.
- the receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer.
- the multi-antenna receiving processor 458 performs receiving analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454.
- the receiving processor 456 uses Fast Fourier Transform (FFT) to convert the baseband multi-carrier symbol stream after receiving analog precoding/beamforming operations from the time domain to the frequency domain.
- FFT Fast Fourier Transform
- the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, where the reference signal will be used for channel estimation, and the data signal is recovered by the multi-antenna receiving processor 458 after multi-antenna detection. Any spatial flow for the destination.
- the symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated.
- the receiving processor 456 then decodes and deinterleaves the soft decision to recover the upper layer data and control signals transmitted by the node 410 on the physical channel.
- the upper layer data and control signals are then provided to the controller/processor 459.
- the controller/processor 459 implements the functions of the L2 layer.
- the controller/processor 459 may be associated with a memory 460 that stores program codes and data.
- the memory 460 may be referred to as a computer-readable medium.
- the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to restore upper layer data packets.
- the upper layer data packets are then provided to all protocol layers above the L2 layer.
- Various control signals can also be provided to L3 for L3 processing.
- the memory 460 is used as a buffer for data to be sent.
- the memory 460 is used to buffer the received data.
- the memory 460 is used to buffer the first bit block.
- the memory 476 is used as a buffer for data to be sent.
- the memory 476 is used to buffer the received data.
- the memory 476 is used for buffering the first bit block.
- the data to be sent is transmitted on UL-SCH (UpLink Shared CHannel, uplink shared channel).
- UL-SCH UpLink Shared CHannel, uplink shared channel
- the received data is transmitted on a DL-SCH (DownLink Shared CHannel, uplink shared channel).
- DL-SCH DownLink Shared CHannel, uplink shared channel
- the space occupied by one bit block in the memory 460 is referred to as the buffer size of the one bit block.
- the smallest candidate space among the multiple candidate spaces that is not less than the space occupied by one bit block in the memory 460 is referred to as the buffer size of the one bit block.
- the sizes of any two candidate spaces in the plurality of candidate spaces are different.
- the controller/processor 475 is also responsible for HARQ operation, retransmission of lost packets, and signaling to the node 450.
- the controller/processor 459 is also responsible for error detection using an acknowledgement (ACK) and/or negative acknowledgement (NACK) protocol to support HARQ operations.
- ACK acknowledgement
- NACK negative acknowledgement
- the controller/processor 475 in the transmission link from the node 410 to the node 450, provides header compression, encryption, packet segmentation and reordering, and multiplexing between logic and transport channels. And the allocation of radio resources to the node 450 based on various priority metrics.
- the controller/processor 459 implements demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing based on the wireless resource allocation of the controller/processor 475 to restore upper-layer data packets .
- the controller/processor 475 implements header compression, encryption, packet segmentation, and reconfiguration based on the wireless resource allocation of the controller/processor 459. Sorting and multiplexing between logic and transport channels.
- the controller/processor 475 implements L2 layer functions for the user plane and the control plane.
- the controller/processor 459 implements L2 layer functions applied to the user plane and control plane.
- the transmission steps in the above transmission link from the node 410 to the node 450 are reused-except that the function of the module in the node 410 is used by the corresponding module in the node 450 Completed and the function of the module in node 450 is completed by the corresponding module in node 410.
- the node 410 is a first node; and the node 420 is a second node.
- the node 410 is a base station device, and the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logic and transport channels, and multiplexing based on various priorities.
- the level measures the allocation of radio resources to the node 450.
- the controller/processor 475 is also responsible for HARQ operation, retransmission of lost packets, and signaling to the node 450.
- the node 450 is a user equipment
- the first node is the node 450
- the node 410 is a second node.
- the node 450 is user equipment
- the first node adopts the hardware structure of the node 450
- the sender of any wireless signal in the first signal set also adopts the node 450 hardware structure.
- the antenna 452, the receiver 454, and the receiving processor 456 ⁇ are used to receive the first signal set through blind detection in the first air interface resource pool, according to the A signal set recovers the first bit block at the physical layer; ⁇ the antenna 452, the transmitter 454, and the transmission processor 468 ⁇ are used to send the first wireless signal.
- the multi-antenna receiving processor 458 is used to receive the first signal set, and the multi-antenna transmitting processor 457 is used to transmit the first wireless signal.
- the antenna 452, the transmitter 454, and the transmission processor 468 ⁇ are used to send the first signal set.
- the antenna 420, the receiver 418, and the receiving processor 470 ⁇ are used to receive the first signal set and the first wireless signal.
- ⁇ the antenna 420, the transmitter 418, and the transmit processor 416 ⁇ are used to send the first signaling, ⁇ the antenna 452, the receiver 454, the receiver The processor 456 ⁇ is used to receive the first signaling.
- the multi-antenna receiving processor 458 is used to receive the first signaling
- the multi-antenna transmitting processor 471 is used to send the first signaling.
- the node 410 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be compatible with Used together with the at least one processor, the node 410 at least: performs blind detection in the first air interface resource pool and fails to correctly decode the first bit block; receives a first wireless signal, where the first wireless signal includes the first A piece of information; wherein, the first bit block is used to generate a first signal set to be sent in the first air interface resource pool; the first information is used to indicate the amount of data that can be sent in the buffer; When the first set of conditions is met, the first information is triggered at a higher layer; the first set of conditions includes a first condition, and the first condition includes that the first buffer information is transferred from the physical layer to the higher layer; The first wireless signal is transmitted.
- the node 450 includes: at least one processor and at least one memory, where the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be compatible with The at least one processor is used together, and the node 450 at least: receives the first signal set through blind detection in the first air interface resource pool, and restores the first bit block at the physical layer according to the first signal set; The higher layer transmits the first buffer information; when the first condition set is met, triggers the first information at the higher layer; sends a first wireless signal, where the first wireless signal includes the first information; wherein, the The first information is used to indicate the amount of data that can be sent in the buffer, the first set of conditions includes a first condition, and the first condition includes that the first buffer information is transferred from the physical layer to a higher layer.
- the node 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: in the first air interface resource Blind detection is performed in the pool, and the first bit block cannot be decoded correctly; receiving a first wireless signal, where the first wireless signal First information; wherein, the first bit block is used to generate a first signal set to be sent in the first air interface resource pool; the first information is used to indicate the amount of data that can be sent in the buffer When the first set of conditions is met, the first information is triggered at a higher layer; the first set of conditions includes a first condition, and the first condition includes that the first buffer information is transferred from the physical layer to the higher layer ; The first wireless signal is sent.
- the node 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: accessing a first air interface resource
- the pool receives the first signal set through blind detection, and restores the first bit block at the physical layer according to the first signal set; transfers the first buffer information from the physical layer to the higher layer; when the first condition set is met, The higher layer triggers the first information; sends a first wireless signal, and the first wireless signal includes the first information; wherein, the first information is used to indicate the amount of data that can be sent in the buffer, and the first
- the set of conditions includes a first condition, and the first condition includes that the first buffer information is transferred from the physical layer to a higher layer.
- the node 410 and the node 450 are user equipments respectively.
- the node 410 and the node 450 are base station equipment respectively.
- the node 410 and the node 450 are base station equipment and user equipment, respectively.
- Example 5
- Embodiment 5 illustrates a schematic diagram of an air interface resource pool, as shown in FIG. 5.
- the one air interface resource pool includes L air interface resources, that is, air interface resources #0, #1,, # (L-1), where L is a positive integer greater than 1;
- the occupied time-frequency resources are the same-as indicated by the bold line frame in Figure 7; air interface resources #0, #1,, # (L-1) respectively correspond to L different code domain resources, that is, multiple access signatures.
- the first air interface resource pool is the one air interface resource pool.
- the second air interface resource pool is the one air interface resource pool.
- the time-frequency resources occupied by the L air interface resources include multiple REs (Resource Elements, resource particles).
- the time-frequency resource occupied by the L air interface resources does not exceed 1 millisecond in the time domain.
- the first signal set includes K wireless signals, where K is a positive integer greater than 1, and the K wireless signals are respectively sent in K air interface resources among the L air interface resources.
- Embodiment 6 illustrates the transmission flowchart of the first wireless signal, as shown in FIG. 6.
- the steps in box F1, box F2 and box F3 are optional.
- the first signal set is received by blind detection in the first air interface resource pool, and the first bit block is recovered at the physical layer according to the first signal set; in step S11, The air interface resource pool monitors the target information to determine that the first bit block has not been correctly decoded by the target receiver; in step S12, the first node N1 is transferred from the physical layer of the first node N1 to the higher layer of the first node N1.
- the third set of conditions in step S14, instruct the physical layer of the first node N1 to send second information and send the second information, and receive first signaling in step S15,
- the first signaling includes the scheduling information of the first wireless signal; in step S16, the first wireless signal is transmitted, and the first wireless signal includes the first information; in step S17, the second signaling is received; in step S17 Sending a second wireless signal in S18;
- step S20 blind detection is performed in the first air interface resource pool, and the first bit block cannot be decoded correctly; in step S21, the first bit block is indicated by target information in the second air interface resource pool. The bit block is not correctly decoded; when the third condition set is met, the second information is received in step S22; the first signaling is sent in step S23; the first wireless signal is received in step S24 Signal; send the second signaling in step S25; receive the second wireless signal in step S25; For the other node set N3, in step S30, the first signal set is sent in the first air interface resource pool.
- the first information is used to indicate the amount of data that can be sent in the buffer
- the first condition set includes a first condition
- the first condition includes that the first buffer information is removed from the first condition.
- the physical layer of the node N1 is transferred to the higher layer of the first node N1;
- the second information is used to request channel resources;
- the second set of conditions includes that the first information is not terminated and the channel resources are not allocated
- the third condition set includes that at least one channel resource that can be used for the second information is configured for the transmission time interval;
- the second signaling includes the scheduling information of the second wireless signal, and the first One bit block is used to generate the second wireless signal.
- the second information is used by the second node N2 to trigger the sending of the first signaling.
- the second information is triggered at a higher layer of the first node N1.
- the scheduling information includes MCS (Modulation Coding Status, Modulation Coding Status).
- the scheduling information includes RV (Redundancy Version).
- the scheduling information includes HARQ (Hybrid Auto Repeat reQuest) process number (Process Number).
- HARQ Hybrid Auto Repeat reQuest
- Process Number Process Number
- the scheduling information includes NDI (New Data Indicator, New Data Indicator).
- the scheduling information includes HARQ process number, RV, NDI and MCS.
- the scheduling information includes a transmitting antenna port.
- the scheduling information includes TCI (Transmission Configuration Indicator, transmission configuration indicator).
- the scheduling information includes TPC (Transmit Power Control, transmit power control).
- the target signaling is DCI (Downlink Control Information, Downlink Control Information).
- the target signaling is sent on PDCCH (Physical Downlink Control CHannel, physical downlink control channel).
- PDCCH Physical Downlink Control CHannel, physical downlink control channel
- the target signaling is the DCI used for Uplink Grant.
- the first wireless signal is PUSCH (Physical Uplink Shared CHannel, physical uplink shared channel).
- PUSCH Physical Uplink Shared CHannel, physical uplink shared channel
- the target signaling includes some or all fields in the LTE (Long Term Evolution) DCI format 0.
- LTE Long Term Evolution
- the target signaling includes some or all of the fields in the LTE DCI format 4.
- the target signaling is a DCI with a (with) NR (New Radio, New Radio) format 0_0.
- the target signaling is a DCI with an NR DCI format 0_1.
- the target signaling is the first signaling.
- the target signaling is second signaling.
- the phrase failed to correctly decode the first bit block includes: the first signal set is not correctly decoded by the second node N2.
- the phrase failed to correctly decode the first bit block includes: any wireless signal in the first signal set is not correctly decoded by the second node N2.
- the phrase failed to correctly decode the first bit block includes: any wireless signal in the first signal set fails to pass the CRC check performed by the second node N2 in channel decoding .
- the phrase failed to correctly decode the first bit block includes: the second node N2 fails to realize the existence of any wireless signal in the first signal set through feature sequence detection.
- the second node N2 is a target receiver of the first signal set.
- the first node N2 maintains the serving cell of the first node N1.
- the identity of the second node N2 is used for the generation of any wireless signal in the first signal set.
- the identity of the second node N2 is used for the scrambling code of the CRC included in any wireless signal in the first signal set.
- the identity of the second node N2 is used for RS (Referene Signal) of a DMRS (DeModulation Reference Signal, demodulation reference signal) included in any wireless signal in the first signal set ) Sequence generation.
- RS Referene Signal
- DMRS DeModulation Reference Signal, demodulation reference signal
- the first air interface resource pool is allocated by the second node N2.
- the target information is broadcast.
- the target information is sent on the PDCCH.
- the one condition set is the first condition set.
- the one condition set is a second condition set.
- the one condition set is a third condition set.
- the first bit block is used to generate the second wireless signal
- the second wireless signal is sent on a first channel
- the scheduling information of the second wireless signal is the The allocation information of the first channel.
- the first channel is (the second node N2) allocated to the first node N1.
- the identity of the first node N1 is used to scramble the bit block transmitted on the first channel.
- the identity of the first node is used to scramble the CRC (cyclic redundancy check) of the bit block transmitted on the first channel.
- the first channel is exclusive to the first node.
- the first buffer information indicates the number of information bits in the first signal set. As an embodiment, the first buffer information indicates the number of bits included in the first bit block. As an embodiment, the first node N1 is user equipment, the second node N2 is base station equipment, and the other node set N3 includes at least one user equipment.
- the first node N1 is user equipment
- the second node N2 is user equipment
- the other node set N3 includes at least one user equipment.
- the first signal set includes K wireless signals, and the K is a positive integer greater than 1.
- the other node set N3 includes K user equipments, and the K wireless signals are respectively K user equipment sends.
- the first buffer information indicates the K.
- the buffer sizes occupied by the K wireless signals are the same.
- any user equipment of the K user equipments is connected to the second node.
- the higher-layer connection includes an RRC connection (Connect ion).
- the higher layer connection includes a core network connection.
- the time-frequency resources occupied by the K wireless signals are the same.
- the K wireless signals occupy K physical layer channels respectively.
- the target information includes indication information of all wireless signals correctly decoded by the second node N2 in the first air interface resource pool, and the target information does not include information in the first signal set Indication information of any wireless signal.
- the indication information includes HARQ-ACK.
- the target information includes indication information of a wireless signal that the second node N2 decodes incorrectly in the first air interface resource pool, and the target information includes each signal in the first signal set. Instruction information of the wireless signal.
- the second air interface resource pool is associated with the first air interface resource pool.
- the time-frequency resources occupied by the first air interface resource pool are used to determine the time-frequency resources occupied by the second air interface resource pool.
- the first node N1 obtains the first bit block after performing channel decoding on the first signal set, and performs channel coding on the first bit block to generate the second wireless signal,
- the code rate used for the channel coding is indicated by the first physical layer signaling.
- the K wireless signals are respectively sent by K senders, and the phrase receiving the first signal set through blind detection in the first air interface resource pool includes: any one of the K senders sends There is no higher-level connection between the sender and the sender of the first signal subset.
- the K wireless signals are respectively sent by K senders, and the phrase receiving the first signal set through blind detection in the first air interface resource pool includes: the first node and the K senders There is no higher-level connection between any of the senders.
- the first information and the second information are BSRC Buffer Status Report and SR (Scheduling Request) respectively.
- the first bit block is scrambled.
- the scrambling code is executed at the physical layer of the sender of the first signal set.
- the first channel is sPUSCHC short Physical Uplink Shared Channel
- the first channel is a physical layer channel.
- the first channel is exclusive to the first node.
- the third condition set includes that the second information is triggered
- the current transmission time (this TTI) interval does not belong to a measurement gap (measurement gap).
- the first node can perform wireless transmission in the current transmission time interval.
- the second set of conditions includes that the first timer is not running.
- the second set of conditions includes that the first counter is less than a specific threshold, and the specific threshold is a positive integer.
- the specific threshold is greater than one.
- the specific threshold is configurable.
- the first node restarts the cell search.
- the first timer is started.
- the first information is used to generate scheduling information in the second signaling.
- the first information is used to generate the number of REs (Resource Element, resource particles) occupied by the second wireless signal.
- the second condition set includes that the first information is triggered at the higher layer.
- the third condition set includes that the second information is triggered
- the first information is a buffer status report.
- the buffer status report is a regular (Regular) buffer status report.
- the buffer status report is a padding (Padding) buffer status report.
- Embodiment 7 illustrates a schematic diagram of requesting channel resources, as shown in FIG. 7; the physical layer and higher layers in FIG. 7 are on the first node side.
- the first node recovers the first bit block at the physical layer according to the first signal set, determines the first buffer information according to the buffer size occupied by the first bit block; and transmits the first buffer information to A higher layer, when a first set of conditions is met, trigger first information at the higher layer, the first set of conditions includes the first condition, and the first condition includes that the first buffer information is transferred from the physical layer to the more High layer; when a second set of conditions is met, the higher layer triggers second information, and the second set of conditions includes that the first information is triggered at the higher layer and the first information is not terminated and the channel Resources are not allocated; when the third set of conditions is met, the higher layer instructs the physical layer to send the second information and the physical layer sends the second information.
- the second information is used to request channel resources
- the third condition set includes that at least one channel resource that can be used for the second information is configured for the current transmission time interval
- the third condition set The set of conditions includes that the second information is triggered.
- the requesting channel resources includes requesting UL-SCH (UpLink Shared CHannel, uplink shared channel) resources.
- UL-SCH UpLink Shared CHannel, uplink shared channel
- the second information is a scheduling request (Scheduling Request).
- the second information is used to request channel resources for a new transmission.
- the unallocated channel resource includes: this TTI (Transport Time Interval, transmission time interval)
- TTI Transport Time Interval, transmission time interval
- the MAC entity (entity) in the higher layer has not been allocated an uplink resource for new transmission.
- the uplink resource includes a transmission channel.
- the uplink resource includes a logical channel.
- the unallocated channel resource includes: Uplink Grant is not configured.
- the second set of conditions includes that the first timer is not running.
- the first timer is maintained at the higher layer.
- the first timer is used to interrupt the sending of the second information.
- the first timer is logicalChannelSR-ProhibitTimer.
- the physical layer of the first node sends first buffer information to the higher layer of the first node, and the first buffer information is used by the higher layer of the first node To determine the buffer size occupied by the first signal set.
- the first buffer information indicates the number of information bits in the first signal set. As an embodiment, the first buffer information indicates the number of bits included in the first bit block. As an embodiment, the first buffer information indicates the number of bits obtained after channel decoding is performed on the first signal set.
- the first signal set occupies K air interface resources, the K air interface resources respectively include K multiple access signatures, the first buffer information indicates the K, and the K is a positive value greater than 1. Integer.
- the higher layer of the first node includes a MAC (Medium Access Control, media intervention control) layer of the first node.
- MAC Medium Access Control, media intervention control
- the higher layer of the first node includes an RLC (Radio Link Control, radio link control) layer of the first node.
- RLC Radio Link Control, radio link control
- the higher layer of the first node includes a PDCP (Packet Data Convergence Protocol, Packet Data Convergence Protocol) layer of the first node.
- PDCP Packet Data Convergence Protocol, Packet Data Convergence Protocol
- the first set of conditions includes a third condition
- the first buffer information indicates a first priority
- the third condition includes: the first priority is higher than all existing ones available for transmission The priority of any logical channel in the logical channel group for data.
- the first priority is a positive integer.
- the first priority is a candidate priority in a candidate priority set
- the candidate The selection priority set consists of the priorities that all logical channels may be assigned.
- the first priority is configured by the base station.
- the first priority is configured by the serving cell of the first node.
- the first priority is associated with the first air interface resource pool.
- Embodiment 8 illustrates a flowchart of using target information to indicate that the first signal set is not correctly decoded, as shown in FIG. 8. The steps in Figure 8 are executed in the second node.
- step S60 the second node determines whether there is a correctly decoded wireless signal in the first air interface resource pool; if so, in step S62, the target information is sent in the second air interface resource pool, if not, in step S61 Keep zero transmission power in the second air interface resource pool.
- the target information is set to be empty.
- the wireless signal correctly decoded by the second node in the first air interface resource pool includes M wireless signals, where M is a positive integer; the target information includes M identities, and the M Each identity is used to identify the M wireless signals.
- none of the M wireless signals belong to the first signal set.
- the M identities are respectively used to identify the sender of the M wireless signals.
- the M identities are respectively used for scrambling codes of the M wireless signals.
- the M identities are respectively used to generate the RS sequence of the DMRS included in the M wireless signals.
- the M identities are M RNTIs respectively.
- Embodiment 9 illustrates a schematic diagram of the first time-frequency resource pool and the second time-frequency resource pool, as shown in FIG. 9.
- the time domain resources occupied by the second time-frequency resource pool are after the time domain resources occupied by the first time-frequency resource pool.
- the frequency domain resources occupied by the second time-frequency resource pool and the frequency domain resources occupied by the first time-frequency resource pool belong to the same BWP (Bandwidth Part).
- the frequency domain resources occupied by the second time-frequency resource pool and the frequency domain resources occupied by the first time-frequency resource pool include the same subcarriers.
- the time slot occupied by the second time-frequency resource pool is the u-th time slot after the time slot occupied by the first time-frequency resource pool, and the u is a positive integer.
- the u is a fixed constant.
- the u is configurable.
- the first time-frequency resource pool and the second time-frequency resource pool are time-frequency resources occupied by the first air interface resource pool and the second air interface resource pool, respectively.
- the first time-frequency resource pool and the second time-frequency resource pool are time-frequency resources occupied by the first air interface resource pool and the first channel, respectively.
- the first time-frequency resource pool and the second time-frequency resource pool are the time-frequency resources occupied by the first signaling and the first wireless signal, respectively, and the u is the time-frequency resource occupied by the first physical Instructed by layer signaling.
- the first time-frequency resource pool and the second time-frequency resource pool are time-frequency resources occupied by the second signaling and the second wireless signal, respectively, and the u is the time-frequency resource occupied by the second physical Instructed by layer signaling.
- the second air interface resource pool is associated with the first air interface resource pool.
- Embodiment 10 illustrates a schematic diagram of time-frequency resources occupied by wireless signals, as shown in FIG. 8.
- the horizontal axis and the vertical axis are the time axis and the frequency axis, respectively, and a small square represents a RE (Resource Element).
- ⁇ 0-0, 1-0, 2-0, ⁇ ⁇ ⁇ , P-0 ⁇ ; ⁇ 0—1, 1-1, 2-1, 3-1, ⁇ ⁇ ⁇ , P— 1 ⁇ ; ⁇ 0-2, 1_2, 2_2, 3_2,.. ., P_V ⁇ represents resource particles that are all occupied by a wireless signal and belong to V multi-carrier symbols.
- the time-frequency resource occupied by any wireless signal in the first signal set includes ⁇ 0_0, 1_0, 2-0,, P-0 ⁇ ; ⁇ 0-1, 1-1, 2- 1, 3—1,, P— 1 ⁇ ; ⁇ 0—2, 1—2, 2—2, 3—2,, P—V ⁇ represents the resource particle.
- the time-frequency resources occupied by the second wireless signal include ⁇ 0_0, 1_0, 2_0,.. ., P_0 ⁇ ; ⁇ 0_1, 1_1, 2_1, 3_1, P_l ⁇ ; ⁇ 0_2, 1_2, 2_2 , 3_2, P_V ⁇ represents the resource particle.
- the modulation symbols obtained after being modulated by j in the first bit block are sequentially mapped to REs in the second wireless signal that are not occupied by DMRS according to the rule of frequency domain first and time domain second.
- some of the bits in the first bit block are extracted to form a second bit block, and the modulation symbols obtained after the bits in the second bit block are modulated according to the first in frequency domain and second in time domain.
- the modulation symbols obtained after the bits in the second bit block are modulated according to the first in frequency domain and second in time domain.
- the modulation symbols obtained after the bits in the second bit block are modulated are sequentially mapped to those in the second wireless signal that are not occupied by DMRS according to the rule of frequency domain first and time domain second. RE.
- the modulation symbols obtained after the bits in the first bit block are modulated are sequentially mapped to those in the second wireless signal that are not occupied by DMRS according to the rule of frequency domain first and time domain second. RE.
- the bits in the second bit block include UCI, and the position of the UCI in the second bit block is before the position of the bit in the first bit block in the second bit block.
- the REs represented by the small gray-filled squares in FIG. 10 are allocated to the DMRS of the second wireless signal.
- the P is a positive integer multiple of 12.
- the V is 1.
- the V is 2.
- the V is 7.
- the V is 14.
- Example 11 is
- Embodiment 11 illustrates a schematic diagram of the first bit block, as shown in FIG. 11.
- the first bit block includes a systematic bit block and an identification bit block.
- the identification bit block indicates the sender of the first bit block.
- the CRC of the systematic bit block of the first bit block is used to generate the identification bit block in the first bit block.
- the CRC of the systematic bit block of the first bit block is scrambled to obtain the identification bit block in the first bit block.
- the first bit block is sent by one user equipment.
- the first signal set includes only one wireless signal.
- the first signal set is sent on one PUSCH.
- the second wireless signal is that the first bit block sequentially passes through a modulation mapper (Modulation Mapper), a layer mapper (Layer Mapper), a precoding (Precoding), and a resource element mapper (Resource Element Mapper). , Output after multi-carrier symbol generation (Generation).
- Modulation Mapper Modulation Mapper
- Layer Mapper Layer Mapper
- Precoding Precoding
- Resource Element Mapper Resource Element Mapper
- the second wireless signal is an output after the first bit block passes through a modulation mapper, a resource particle mapper, and a multi-carrier symbol.
- Embodiment 12 illustrates a schematic diagram of the first bit block, as shown in FIG. 12.
- the first bit block includes K bit sub-blocks, namely, bit sub-block #1, bit sub-block #2, ..., bit sub-block #K ; each bit sub-block includes a systematic bit block And a block of identification bits.
- the K bit sub-blocks are sent by K senders respectively.
- the CRC of the systematic bit block in each bit sub-block of the K bit sub-blocks is used to generate the identification bit block in the first bit block.
- the CRC of the systematic bit block of the first bit block in each bit sub-block of the K bit sub-blocks is scrambled to obtain the identification bit in the first bit block Piece.
- Embodiment 13 illustrates a schematic diagram of the second bit block, as shown in FIG. 13.
- the other bit blocks are optional.
- the first node restores the first bit block according to the first signal set, and the second bit block includes a part of bits selected from the first bit block; the second bit block is used to generate the first bit block 2.
- Wireless signal
- the second bit block sequentially passes through a Modulation Mapper, Layer Mapper, Precoding, and Resource Element Mapper. Mapper), the output after multi-carrier symbol generation (Generation).
- the second wireless signal is an output after the second bit block passes through a modulation mapper, a resource particle mapper, and a multi-carrier symbol.
- the systematic bit block #1, the systematic bit block #2,..., and the systematic bit block #K in Fig. 13 are selected from the first bit block.
- the first bit block is shown in FIG. 12; in FIG. 13, systematic bit block #1, system bit block #2,...
- the systematic bit block #1, the systematic bit block #2,... And the systematic bit block #K in FIG. 13 are used to generate the check bit block in FIG.
- the system bit block #1, the system bit block #2, .. ., the system bit block #1 (the information bit block formed by concatenation is used to generate the CRC, and the cross-check bit block is the CRC Obtained after scrambling.
- the second bit block includes other bit blocks, and the other bit blocks are not related to the first bit block.
- the second bit sub-block includes other bit blocks, and the other bit blocks are not related to the first signal set.
- the other bit block includes UCI.
- Embodiment 14 illustrates the structural block diagram of the processing device in the first node, as shown in FIG. 14.
- the first node 1400 includes a first receiver 1401, a first processor 1402, and a first transmitter 1403.
- the first receiver 1401 receives the first signal set through blind detection in the first air interface resource pool, and restores the first bit block at the physical layer according to the first signal set; the first processor 1402 updates from the physical layer
- the higher layer transmits the first buffer information; when the first set of conditions is met, the first information is triggered at the higher layer; the first transmitter 1403 sends a first wireless signal, and the first wireless signal includes the first information.
- the first information is used to indicate the amount of data that can be sent in the buffer
- the first condition set includes the first condition
- the first condition includes that the first buffer information is transferred from the physical layer to the Higher level.
- the first receiver 1401 monitors target information in the second air interface resource pool to determine that the first bit block has not been correctly decoded by the target receiver.
- the first condition set includes a second condition, and the second condition includes: there is no data available for transmission on all logical channels.
- the first set of conditions includes a third condition
- the first buffer information indicates a first priority
- the third condition includes: the first priority is higher than all existing ones available for transmission The priority of any logical channel in the logical channel group for data.
- the first buffer information indicates a buffer size occupied by the first bit block.
- the first processor 1402 triggers second information; wherein, the second information is used to request channel resources ;
- the second condition set includes that the first information is not terminated and channel resources are not allocated.
- the first processor 1402 instructs the physical layer to send the second information and the first transmitter sends the second information; the first receiver 1401 receives first signaling, where the first signaling includes scheduling information of the first wireless signal; wherein, the third condition set includes that at least one channel resource that can be used for the second information is configured to This transmission interval.
- the first receiver 1401 receives second signaling; the first transmitter 1403 sends a second wireless signal; wherein, the second signaling includes scheduling information of the second wireless signal, The first bit block is used to generate the second wireless signal.
- the first information is a buffer status report.
- the first node 1400 is the node 450 in FIG. 4.
- the first node 1400 adopts the hardware structure of the node 450 in FIG. 4, and the sender of the first signal set also adopts the hardware structure of the node 450 in FIG. 4.
- the first processor 1401 includes the receiving processor 456 in FIG. 4.
- the first processor 1401 includes the controller/processor 459 and the memory 460 in FIG. 4; the first receiver 1402 includes ⁇ the antenna 452 in FIG. 4 , The receiver 454, the receiving processor 456 ⁇ ; the first transmitter 1403 includes ⁇ the antenna 452, the transmitter 454, and the transmitting processor 468 ⁇ in FIG. 4.
- the first processor 1401 includes the data source 467 in FIG. 4.
- the first processor 1401 includes the memory 460 in FIG. 4.
- the memory 460 is used for buffering of the first node 1400.
- the first receiver 1401 includes the multi-antenna receiving processor 458 in FIG. 4, and the first transmitter 1403 includes the multi-antenna transmitting processor 457 in FIG. 4.
- the first receiver 1401 includes the controller/processor 459 in FIG. 4.
- the first information is BSR.
- the first information is a regular (Regular) buffer status report (BSR).
- BSR buffer status report
- Embodiment 15 illustrates the structural block diagram of the processing device in the second node, as shown in FIG. 15.
- the second node 1500 includes a second receiver 1501 and a second transmitter 1502, where the second transmitter 1502 is optional.
- the second receiver 1501 performs blind detection in the first air interface resource pool, but fails to correctly decode the first bit block; receives a first wireless signal, where the first wireless signal includes first information;
- the first bit block is used to generate a first signal set to be transmitted in the first air interface resource pool; the first information is used to indicate the amount of data that can be transmitted in the buffer; When the first set of conditions is met, the first information is triggered at a higher layer; the first set of conditions includes a first condition, and the first condition includes that the first buffer information is transferred from the physical layer to the higher layer; The first wireless signal is transmitted.
- the second transmitter 1502 indicates in the second air interface resource pool that the first bit block is not correctly decoded through target information.
- the first condition set includes a second condition, and the second condition includes: all logic There is no data available for transmission on the channel.
- the first set of conditions includes a third condition, the first buffer information indicates a first priority, and the third condition includes: the first priority is higher than all existing ones available for transmission The priority of any logical channel in the logical channel group for data.
- the first buffer information indicates a buffer size occupied by the first bit block.
- the second set of conditions includes The first information is not terminated and channel resources are not allocated.
- the second receiver 1501 receives second information; the second transmitter 1502 sends first signaling, and the first signaling includes the first Wireless signal scheduling information; wherein, when the third condition set is met, the physical layer is instructed to send the second information; the third condition set includes at least one channel resource that can be used for the second information is configured for This transmission interval.
- the second transmitter 1502 sends second signaling; the second receiver 1501 receives the second wireless signal; wherein, the second signaling includes scheduling information of the second wireless signal, and The first bit block is used to generate the second wireless signal.
- the first information is a buffer status report.
- the first information is BSR
- the second information is SR
- the first information is a regular (Regular) buffer status report (BSR), and the second information is an SR.
- BSR regular buffer status report
- the second node 1500 is the node 410 in FIG. 4.
- the second node 1500 adopts the hardware structure of the node 410 in FIG. 4, and the sender of the first signal set adopts the hardware structure of the node 450 in FIG. 4.
- the second transmitter 1502 includes ⁇ the antenna 420, the transmitter 418, and the transmit processor 416 ⁇ in FIG. 4; the second receiver 1501 includes the ⁇ The antenna 420, the receiver 418, the receiving processor 470 ⁇ .
- the second receiver 1502 includes the multi-antenna receiving processor 472 in FIG. 4, and the second transmitter 1503 includes the multi-antenna transmitting processor 471 in FIG. 4.
- the second transmitter 1503 includes the controller/processor 459 in FIG. 4.
- the second receiver 1502 includes the controller/processor 459 in FIG. 4.
- the user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remotely controlled aircraft, aircraft, small aircraft, mobile phones, tablets, notebooks, in-vehicle communication equipment, wireless sensors, network cards, Internet of Things terminal, RFID terminal, NB-IOT terminal, MTCC Machine Type Communication) terminal, eMTC (enhanced MTC, enhanced MTC) terminal, data card, internet card, in-vehicle communication equipment, low-cost mobile phone, low cost Cost tablets and other equipment.
- the base stations in this application include, but are not limited to, wireless communication devices such as macro cell base stations, micro cell base stations, home base stations, relay base stations, gNB (NR node B), TRP (Transmitter Receiver Point) and other wireless communication devices.
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CN111615194B (zh) | 2022-03-01 |
US20210385797A1 (en) | 2021-12-09 |
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