WO2021159464A1 - 信息发送和接收的方法及装置 - Google Patents
信息发送和接收的方法及装置 Download PDFInfo
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- WO2021159464A1 WO2021159464A1 PCT/CN2020/075260 CN2020075260W WO2021159464A1 WO 2021159464 A1 WO2021159464 A1 WO 2021159464A1 CN 2020075260 W CN2020075260 W CN 2020075260W WO 2021159464 A1 WO2021159464 A1 WO 2021159464A1
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Definitions
- This application relates to the field of communications, and in particular to a method and device for sending and receiving information in the field of communications.
- V2D Device to device
- V2V vehicle to vehicle
- V2P vehicle to pedestrian
- V2I/N vehicle to infrastructure/network
- V2X Vehicle to Infrastructure/ Network
- LTE Long Term Evolution
- NR new air interface
- 5G fifth-generation
- V2X vehicle-to-everything
- Side-line communication includes two communication modes: the first communication mode is based on base station scheduling, that is, the terminal device sends side-line communication control information and data on the scheduled time-frequency resources according to the scheduling information of the base station; the second type The communication mode is based on the mode in which the terminal device selects the communication resource by itself, that is, the terminal device selects the time-frequency resource on its own in the side-line resource pool, and sends control information and data on the selected time-frequency resource.
- side-line communication in addition to the communication between terminal devices, it also involves the interaction between some terminal devices and network devices. For example, in the first communication mode, the terminal device may need to send a scheduling request to the network device to request the resources of the side link. In both communication modes, the terminal device may need to send similar hybrid automatic repeat request (HARQ) feedback information to the network device to confirm whether the transmission of the side-line data channel PSSCH is successful, etc. .
- HARQ hybrid automatic repeat request
- a terminal device performing side-line communication needs to occupy uplink resources to send side-line related information.
- the side-line related information may conflict with the uplink information on the cellular link, which will affect the communication on the side-line link and the cellular link at the same time.
- the embodiments of the present application provide a method and device for information transmission and reception, which can reasonably process information transmission in the case of conflicts between uplink channels, and ensure communication quality and communication efficiency.
- a method for sending information is provided.
- the execution subject of the method can be a terminal.
- the terminal can be the whole terminal device or a component that implements the communication function in the terminal device, or the terminal can also be a communication chip, or physically Distributed communication function body.
- the method includes: generating first uplink information and second uplink information, the first uplink information includes downlink HARQ feedback information, uplink scheduling request or uplink channel state information, and the second uplink information includes side HARQ feedback information or side Line scheduling request; in response to the uplink channel corresponding to the first uplink information and the uplink channel corresponding to the second uplink information completely or partially overlapping, sending the first uplink information and the second uplink information with a higher priority High information; where the priority order includes ⁇ downlink HARQ feedback information>sideline HARQ feedback information>uplink scheduling request>sideline scheduling request>uplink channel state information ⁇ .
- the terminal in the case of resource conflict or overlap between uplink information, the terminal can send higher priority information in priority order, and the priority order provided in the embodiment of this application can be maximized. Ensure the operation of the communication system, ensure system performance, reduce the time delay of data transmission, and ensure communication quality and communication efficiency.
- the second uplink information further includes side-line channel state information
- the priority order further includes ⁇ uplink channel state information>side-line channel state information ⁇ .
- the second uplink information further includes sideline channel state information
- the priority order includes ⁇ downlink HARQ feedback information>sideline HARQ feedback information>uplink scheduling request> Sideline scheduling request>channel state information ⁇ .
- the sending of the first uplink The information and the information with the higher priority in the second uplink information includes: sending the information with the lower priority value in the uplink channel state information and the side row channel state information, wherein the lower the priority value, the higher the priority The higher the level.
- the values of the parameters P ch, CSI , P ch, UL CSI and P ch, and SL CSI are predefined or configured through high-level signaling.
- a method for sending information is provided.
- the execution subject of the method can be a terminal.
- the terminal can be the whole terminal device or a component that implements the communication function in the terminal device, or the terminal can also be a communication chip, or physically Distributed communication function body.
- the method includes: generating first uplink information and second uplink information, the first uplink information includes downlink HARQ feedback information, uplink scheduling request or uplink data, and the second uplink information includes side-line HARQ feedback information or side-line scheduling Request; in response to the full or partial overlap of the uplink channel corresponding to the first uplink information and the uplink channel corresponding to the second uplink information, determine the service priority of the data corresponding to the first uplink information and the second uplink The service priority of the data corresponding to the information; and the information with the higher service priority of the corresponding data in the first uplink information and the second uplink information is sent.
- the terminal can determine the service priority of data corresponding to different uplink information respectively when the uplink channel conflicts, and determine the information to be sent preferentially according to the service priority of the corresponding data.
- the terminal can avoid conflicts between uplink transmissions, reduce communication errors, and ensure the transmission of data-related uplink data with high service priority, ensuring uplink transmission reliability and transmission efficiency .
- the sending station when the first uplink information is the downlink HARQ feedback information and the second uplink information is the side-line scheduling request, includes: multiplexing the side row scheduling request onto the uplink channel carrying the downlink HARQ feedback information, and sending it The uplink channel.
- the data corresponding to the HARQ feedback information is data carried on the data channel fed back by the HARQ feedback information
- the data corresponding to the scheduling request is the data requested by the scheduling request The data carried on the channel.
- a method for sending information is provided.
- the execution subject of the method can be a terminal.
- the terminal can be the whole terminal device or a component that realizes the communication function in the terminal device, or the terminal can also be a communication chip, or physically Distributed communication function body.
- the method includes: generating at least one scheduling request and downlink HARQ feedback information, where the at least one scheduling request includes an uplink scheduling request or a sideline scheduling request, and the downlink HARQ feedback information is a positive acknowledgement ACK or a negative acknowledgement NCAK; in response to The first resource and the second resource overlap in whole or in part, and the target cyclic shift value is determined according to the at least one scheduling request and the downlink HARQ feedback information, where the first resource is a resource configured by the network device to send a scheduling request.
- the second resource is a resource used to carry the downlink HARQ feedback information; the uplink control information sequence is generated according to the target cyclic shift value and the initial cyclic shift value; the uplink control information sequence is sent on the second resource Control information sequence.
- the terminal can reuse the same PUCCH resource to carry multiple combinations of DL HARQ and UL SR and SL SR, efficiently utilize uplink control channel resources, and improve communication efficiency.
- the determining the target cyclic shift value according to the at least one scheduling request and the downlink HARQ feedback information includes: according to the at least one scheduling request and the downlink HARQ feedback The correspondence between the information and the at least one cyclic shift value determines the target cyclic shift value.
- the corresponding relationship includes: the downlink HARQ feedback information corresponds to the first cyclic shift value set; the downlink HARQ feedback information and the uplink scheduling request, or the downlink HARQ feedback information and the side line
- the scheduling request corresponds to the second cyclic shift value set; the downlink HARQ feedback information and the uplink scheduling request and the side row scheduling request correspond to the third cyclic shift value set; wherein, the first cyclic shift value set and the second cyclic shift value set Any two cyclic shift values in the shift value set and the third cyclic shift value set are different.
- the first cyclic shift value set is ⁇ 0, 6 ⁇ , and the second cyclic shift
- the bit value set is ⁇ 3,9 ⁇
- the third cyclic shift value set is ⁇ 4,10 ⁇ or ⁇ 5,11 ⁇ ; or, when the downlink HARQ feedback information is 2 bits, the The first cyclic shift value set is ⁇ 0, 3, 6, 9 ⁇ , the second cyclic shift value set is ⁇ 1, 4, 7, 10 ⁇ , and the third cyclic shift value set is ⁇ 2 ,5,8,11 ⁇ .
- the newly added cyclic shift value (take ⁇ 4,10 ⁇ as an example) is the same as the existing two pairs of cyclic shift values at a uniform distance.
- the two cyclic shift values The cross-correlation between the sequences generated by the shift value is smaller, and the receiving end has a lower probability of decoding errors in ACK/NACK.
- the distance between the newly added pair of cyclic shift values (take ⁇ 4,10 ⁇ as an example) and the other two pairs of cyclic shift values is as large as possible, so that the receiving end is wrong about the three combinations of information carried by PUCCH.
- the probability of checking is kept at a low value.
- the method further includes: sending indication information, the indication information being used to indicate Whether the uplink control information sequence carries an uplink scheduling request or a sideline scheduling request.
- the indication information may be carried in the BSR.
- the terminal sends the BSR, and the SR sent through the BSR indication is used to request uplink resources or side-line resources.
- a method for sending information may be a terminal.
- the terminal may be a terminal device or a component that implements communication functions in the terminal device, or the terminal may be a communication chip, or physically Distributed communication function body.
- the method includes: generating at least one scheduling request and downlink HARQ feedback information, where the at least one scheduling request includes an uplink scheduling request and a sideline scheduling request, and the downlink HARQ feedback information is a positive acknowledgement ACK or a negative acknowledgement NCAK;
- the number of second resources overlapping the first resource and the number of third resources overlapping the first resource are determined to determine the number of multiplexed bits; wherein the first resource is used to carry the downlink HARQ
- the uplink control channel for feedback information the second resource is a resource configured by the network device to send the uplink scheduling request, and the third resource is a resource configured by the network device to send the sideline scheduling request Resource; sending the number of multiplexed bits SR and the downlink HARQ feedback information on the first resource.
- the terminal can comprehensively consider the resource overlap between the uplink scheduling request and the side scheduling request and the uplink channel carrying HARQ feedback information, and multiplex the scheduling request and HARQ feedback information when they overlap, saving The uplink channel resources are improved, and the normal operation of the communication system is ensured.
- the foregoing second resource may be a resource configured by the network device through an SR configuration and/or an SR resource configuration IE for sending the ULSR.
- the third resource is similar to the second resource and will not be repeated here.
- the second resource may be an SR transmission opportunity (SR occasion), that is, a second resource is an UL SR occasion, and the same third resource is an SL SR occasion.
- SR occasion SR transmission opportunity
- the number of multiplexed bits is determined according to the number of second resources that overlap with the first resource and the number of third resources that overlap with the first resource, which can be replaced with: according to the overlap with the first resource
- the number of SR configurations corresponding to the second resource and the number of SR configurations corresponding to the third resource that overlaps with the first resource determine the number of multiplexed bits.
- a method for sending information is provided.
- the execution subject of the method can be a terminal.
- the terminal can be the whole terminal device or a component that implements the communication function in the terminal device, or the terminal can also be a communication chip, or physically Distributed communication function body.
- the method includes: generating uplink channel state information and side-line channel state information; in response to the uplink channel corresponding to the uplink channel state information and the uplink channel corresponding to the side-line channel state information fully or partially overlapping, calculating the uplink channel
- the priority value of the state information and the priority value of the side-line channel state information are sent, and information with a lower priority value in the uplink channel state information and the side-line channel state information is sent.
- the parameter P ch,CSI can include two values, for example, P ch,CSI is the parameter P ch, UL CSI or P ch, SL CSI , P ch, UL CSI are the adjustment values for the uplink channel state-information priority value, P ch, SL CSI are the adjustment values for the side-line channel state information priority value, and the terminal can follow
- the link corresponding to the channel state information determines the value of the parameter P ch, CSI ;
- the parameter y is used to indicate the channel carrying CSI;
- the parameter k is used to indicate whether the CSI includes the RSRP of the physical layer;
- the parameter c is the index
- the serving cells include both the primary serving cell and the secondary serving cell.
- the parameter N cells is configured by the network equipment or reported by the terminal equipment;
- the parameter s is The identifier of the CSI report;
- the parameter M s represents the maximum number of CSI report configurations.
- the values of the parameters P ch, CSI , P ch, UL CSI and P ch, and SL CSI are predefined or configured through high-level signaling.
- a communication device in a sixth aspect, includes: a processing unit configured to generate first uplink information and second uplink information, the first uplink information including downlink HARQ feedback information, uplink scheduling request, or uplink channel status Information, the second uplink information includes side-line HARQ feedback information or a side-line scheduling request; a transceiver unit, configured to respond to all or all uplink channels corresponding to the first uplink information and the uplink channels corresponding to the second uplink information Partially overlapping, sending the higher priority information in the first uplink information and the second uplink information; where the priority order includes ⁇ downlink HARQ feedback information> sideline HARQ feedback information> uplink scheduling request> sideline scheduling Request>Uplink Channel State Information ⁇ .
- the second uplink information further includes side row channel state information
- the priority order further includes ⁇ uplink channel state information> side row channel state information ⁇ .
- the second uplink information further includes sideline channel state information
- the priority order includes ⁇ downlink HARQ feedback information>sideline HARQ feedback information> Uplink scheduling request>sideline scheduling request>channel state information ⁇ ; when the first uplink information is the uplink channel state information and the second uplink information is the sideline channel state information, the transceiver The unit is also used to send information with a lower priority value in the uplink channel state information and the side row channel state information, where the lower the priority value, the higher the priority.
- the parameter P ch, CSI can include two values, for example, P ch, CSI is the parameter P ch, UL CSI or P ch, SL CSI , P ch, UL CSI is for uplink Channel state-the adjustment value of the information priority value, P ch, SL CSI is the adjustment value for the side-line channel state information priority value
- the terminal can determine the value of the parameters P ch, CSI according to the link corresponding to the channel state information; parameters y is used to indicate the channel
- the values of the parameters P ch, CSI are predefined or configured through high-level signaling.
- a communication device in a seventh aspect, includes: a processing unit configured to generate first uplink information and second uplink information, where the first uplink information includes downlink HARQ feedback information, uplink scheduling request or uplink data, The second uplink information includes side-line HARQ feedback information or a side-line scheduling request; the processing unit is further configured to respond to all or all uplink channels corresponding to the first uplink information and the uplink channels corresponding to the second uplink information. Partially overlapping, determining the service priority of the data corresponding to the first uplink information and the service priority of the data corresponding to the second uplink information; the transceiver unit is configured to send the first uplink information and the second uplink Information that corresponds to the data with a higher business priority.
- the transceiver unit It is also used to multiplex the side row scheduling request onto the uplink channel carrying the downlink HARQ feedback information, and send the uplink channel.
- the data corresponding to the HARQ feedback information is data carried on the data channel fed back by the HARQ feedback information
- the data corresponding to the scheduling request is the scheduling request The data carried on the requested data channel.
- the device described in the above sixth or seventh aspect may be a complete terminal, or a component with the functions of the above terminal device, or a chip system.
- the transceiver unit may be a transmitter and a receiver, or an integrated transceiver, which may include an antenna and a radio frequency circuit, and the processing unit may be a processor, such as a baseband chip.
- the transceiver unit may be a radio frequency unit, and the processing unit may be one or more processors.
- the transceiver unit may be an input/output interface or a communication interface of the chip system, and the processing unit may be a processor of the chip system, such as a central processing unit (CPU).
- CPU central processing unit
- the above-mentioned chip system may be a system on chip (SOC) or a baseband chip.
- the baseband chip may include a processor, a channel encoder, a digital signal processor, a modem, and an interface module.
- the processor includes one or more processors, where the processor may be a general-purpose central processing unit (CPU), a microprocessor, or an application specific integrated circuit (ASIC).
- a communication device is provided, and the communication device may be the terminal in the foregoing method embodiment.
- the communication device includes a memory, a communication interface, and a processor.
- the memory is used to store a computer program or instruction.
- the processor is coupled with the memory and the communication interface. When the processor executes the computer program or instruction, the communication device executes the foregoing The method performed by the terminal in the methods provided in the aspect.
- a computer program product includes computer program code, which when the computer program code runs on a computer, causes the computer to execute the method executed by the terminal in the above aspects.
- the present application provides a chip system including a processor, which is used to implement the functions of the terminal in the above-mentioned methods, for example, to receive or process the data and/or information involved in the above-mentioned methods.
- the chip system further includes a memory, and the memory is used to store program instructions and/or data.
- the chip system can be composed of chips, and can also include chips and other discrete devices.
- the present application provides a computer-readable storage medium that stores a computer program, and when the computer program is executed, the method executed by the terminal in the above aspects is implemented.
- the present application provides a communication system
- the computer-readable storage medium stores a computer program
- the method executed by the network device in the above aspects is implemented.
- Figure 1 is a schematic diagram of an Internet of Vehicles network
- Fig. 2 is a schematic diagram of a communication system according to an embodiment of the present application.
- FIG. 3 is a schematic diagram of the structure of the communication device provided by the present application.
- Fig. 4 is a schematic structural diagram of another communication device provided by the present application.
- FIG. 5 is a schematic diagram of the structure of another communication device provided by the present application.
- FIG. 6 is a schematic diagram of the structure of another communication device provided by the present application.
- FIG. 7 is a schematic flowchart of an information sending and receiving method provided by an embodiment of the present application.
- FIG. 8 is a schematic flowchart of another method for sending and receiving information according to an embodiment of the present application.
- Fig. 9 is a schematic diagram of the distribution of cyclic shift values of an uplink control information sequence in an embodiment of the present application.
- Sidelink A link defined for direct communication between a terminal and a terminal, that is, a link that communicates directly between the terminal and the terminal without being forwarded by the base station.
- Uu link defined for the cellular communication between the terminal and the network device, that is, the link between the terminal and the network device through the cellular network communication.
- the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: the fourth generation (4th Generation, 4G), the 4G system includes the Long Term Evolution (LTE) system and various evolution versions of LTE; global interconnection microwave Access (worldwide interoperability for microwave access, WiMAX) communication systems, future 5th Generation (5G) systems, such as New Radio (NR), and future communication systems, such as 6G systems, etc.
- the technical solutions provided by the embodiments of the present application can be applied to cellular links, and can also be applied to links between devices, such as device-to-device (D2D) links.
- D2D device-to-device
- the D2D link or the V2X link may also be referred to as a side link (SL), where the side link may also be referred to as a side link or a secondary link.
- the link between the devices may also be a link between a base station and a base station, or a link between a relay node and a relay node, etc., which is not limited in the embodiment of the present application.
- the link between the terminal device and the terminal device there are D2D links defined by 3GPP version (Rel)-12/13, and there are also car-to-car, car-to-mobile, or car-to-any entity defined by 3GPP for the Internet of Vehicles.
- V2X link including Rel-14/15. It also includes the V2X link based on the NR system of Rel-16 and subsequent versions that are currently being studied by 3GPP.
- the V2X communication system includes vehicle to vehicle (Vehicle to Vehicle, V2V), vehicle to person (Vehicle to Pedestrian, V2P) (including pedestrians, cyclists, drivers, or passengers), and vehicle to infrastructure Intelligent transportation (Vehicle to Infrastructure, V2I) (for example, the communication between the vehicle and the roadside unit (RSU)) and the vehicle to the network (Vehicle to Network, V2N) (for example, the communication between the vehicle and the base station/network) business.
- V2V vehicle to Vehicle
- V2P vehicle to person
- V2P vehicle to Pedestrian
- V2I vehicle to Infrastructure
- V2N Vehicle to Network
- V2V/V2I/V2P data communication uses side link for communication.
- the base station type RSU can provide timing synchronization and resource scheduling for the vehicles communicating with it.
- a communication system such as D2D, V2X, or the Internet of Things may include at least one network device and one or more terminals.
- a terminal is a device with a wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as aircraft, Balloons and satellites are classy).
- the terminal is also called user equipment (UE), mobile station (MS), mobile terminal (MT), and terminal equipment, etc., which provide users with voice and/or data connectivity. equipment.
- the terminal includes a handheld device with a wireless connection function, a vehicle-mounted device, and so on.
- the terminal can be: mobile phone (mobile phone), tablet computer, notebook computer, palm computer, mobile internet device (MID), wearable device (such as smart watch, smart bracelet, pedometer, etc.), In-vehicle equipment (for example, cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, industrial control (industrial control) Wireless terminals, smart home equipment (for example, refrigerators, TVs, air conditioners, electric meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart Wireless terminals in a smart grid, wireless terminals in transportation safety, wireless terminals in a smart city, or wireless terminals in a smart home, and flying equipment (e.g., smart Robots, hot air balloons, drones, airplanes), etc.
- In-vehicle equipment for example, cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.
- VR virtual reality
- the terminal device is a terminal device that often works on the ground, such as a vehicle-mounted device.
- the terminal device of the present application may also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit that is built into a vehicle as one or more components or units.
- the vehicle passes through the built-in vehicle-mounted module, vehicle-mounted module,
- An on-board component, on-board chip, or on-board unit can implement the method of the present application.
- the components and/chips (or chip systems) used to implement the communication connection function in the complete communication machine also belong to the scope of the terminal.
- the network equipment may be an evolved base station (evolved Node Base Station, eNB) in long-term evolution (LTE).
- eNB evolved Node Base Station
- LTE long-term evolution
- the eNB accesses the 4G core network (for example, the Evolved Packet Core (EPC)) through the S1 interface.
- EPC Evolved Packet Core
- 4G networks are gradually evolving to 5G networks.
- the LTE system can evolve into an eLTE system.
- the eNB in the eLTE system can be connected to the EPC network, and can also be connected to the Next-Generation Core (NG-Core) network.
- the network equipment may also be the next generation node B (gNB) in the NR system in the NR.
- gNB next generation node B
- gNB is connected to the NG-Core network through the N2 interface.
- the wireless interface for direct communication between terminals can be interface 1.
- interface 1 can be called a PC5 interface, using a dedicated frequency band for the Internet of Vehicles (such as 5.9 GHz), and the wireless interface between the terminal and the network device can be called Interface 2 (for example, Uu interface), uses a cellular network frequency band (for example, 1.8 GHz).
- Interface 1 and interface 2 are only examples, and the embodiment of the present application does not limit the names of interface 1 and interface 2.
- the communication system includes a network device 101, one or more first terminals 102 and one or more second terminals 103 that can communicate with the network device 101, and the first terminal 102 and the second terminal 103 can communicate with each other through a side link Direct communication.
- the wireless communication device 101 may provide basic equipment for a wireless network, such as a cellular network base station, etc., to provide support for communication between terminals, for example, to provide support for communication between the wireless communication device 101 and the first terminal 102.
- the first terminal 102 When the sideline communication is in the mode of base station scheduling and the first terminal 102 is the sender of the sidelink, the first terminal 102 first sends a sidelink scheduling request (SLSR) to the network device 101 to request The network device indicates the side link resource for the first terminal 102. The first terminal 102 sends side control information and V2X service data to the second terminal 103 on the resource indicated by the network device 101.
- SLSR sidelink scheduling request
- the second terminal 103 needs to feed back an acknowledgement (ACK) or negative acknowledgement (NACK) to the first terminal 102 after receiving the data sent by the first terminal 102, and the first terminal 102 Then the received side-line HARQ feedback information (SL HARQ) is sent to the base station, or the second terminal 103 sends the side-line HARQ feedback information to the first terminal 102 and the network device 101 at the same time.
- the first terminal 102 and/or the second terminal 103 need to report the channel state information (CSI) of the side link to the network device 101, hereinafter referred to as the side channel state information (SLCSI) .
- the first terminal 102 or the second terminal 103 may need to report SLCSI to the network device 101 periodically, or the first terminal 102 or the second terminal 103 may report aperiodic CSI to the network device 101 based on an event trigger.
- SL HARQ, SL SR, and SLCSI side link related information all need to occupy uplink channel resources to be sent to the network device.
- SL HARQ, SL SR, and SLCSI are generally carried on a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).
- PUCCH physical uplink control channel
- PUSCH physical uplink shared channel
- the uplink resource used for the terminal to send SL HARQ to the network device may be configured by the base station through high-level signaling, or may be configured through high-level signaling to configure one or more resource sets, and further indicate the one or more resource sets through dynamic signaling.
- DCI downlink control information
- network equipment will be semi-static Configure some SR transmission opportunities and available transmission resources to the terminal.
- each SR transmission opportunity is called SR occasion.
- the period and time-frequency resources of SR occasion can be configured by network equipment through high-level signaling, for example It can be through the corresponding information element in RRC signaling (DCI).
- the corresponding IE can be the SR configuration and/or the corresponding SR resource configuration.
- the terminal can send the SL SR on the SR occasion of all or part of the SR configurations in the multiple SR configurations.
- the uplink resources used by the terminal to report SLCSI to the base station can be semi-statically configured by the network equipment through high-level signaling.
- the high-level signaling can be RRC signaling, or MAC CE, or network equipment through dynamic signaling. Let the indicated time-frequency resource be used for reporting of SL CSI, and the dynamic signaling may be, for example, DCI.
- the uplink channel occupies the uplink channel, in many cases there will be conflicts between multiple uplink channels carrying side-link-related information, or the uplink channel carrying side-link-related information will conflict with the Uu chain. There is a conflict in the uplink channel of the road.
- the conflict here means that the channel has at least one time unit (for example, subframe, time slot, symbol, etc.) overlap in the time domain.
- the uplink and downlink time slots are configured according to a semi-static configuration. The above-mentioned side link related information can only be fed back in a specific time slot, such as an uplink time slot, which may be in the same uplink time slot. Multiple side-line HARQ information needs to be reported to the network device.
- the terminal device may also need to send a side-line scheduling request, a side-line scheduling request and/or an uplink scheduling request, and side-line and or uplink channel state information to the network device.
- a side-line scheduling request a side-line scheduling request and/or an uplink scheduling request
- side-line and or uplink channel state information a side-line scheduling request and/or an uplink scheduling request
- different types of information are generated independently and need to be sent on different uplink channels.
- the resource configuration of the uplink channel can be configured periodically or dynamically.
- the multiple uplink channels allocated by the network equipment to the terminal to send the above-mentioned different information may overlap.
- the terminal Since in the 5G system, the uplink transmission will be restricted by the UE capability, transmission power and channel environment, the terminal cannot send multiple channels or reference signals at the same time. For example, the terminal cannot send multiple PUCCHs at the same time. It does not matter whether the multiple PUCCHs are on the same carrier or on different carriers. Exemplarily, PUCCH1 used to carry SL HARQ and PUCCH2 used to carry SL SR may overlap, which means that there is a conflict between the two channels. At this time, a method is needed so that the terminal can process information transmission reasonably. Ensure communication quality and communication efficiency.
- This application provides a method for sending and receiving information, which can be executed by a terminal.
- the terminal can be a complete terminal device or a component in the terminal device that implements communication functions, or the terminal can also be a communication chip, or a physically distributed communication function
- the network device described in this application may also be a complete machine or a component that implements a communication function, or a physically distributed communication function body, or a communication chip.
- the following uses a terminal and a network device as an example to describe the method provided in the embodiment of the present application in more detail.
- FIG. 3 shows a schematic block diagram of a communication device 300 provided by an embodiment of the present application.
- the communication device 300 includes a transceiving unit 310 and a processing unit 320.
- the transceiving unit 310 may also be a separate receiving unit and a sending unit. Communication connection between.
- the communication device 300 may be a complete device, or a component with the above-mentioned terminal device functions, or a chip system.
- the transceiver unit 310 may be a transmitter and a receiver, or an integrated transceiver, which may include an antenna and a radio frequency circuit
- the processing unit 320 may be a processor, such as a baseband chip.
- the transceiving unit 310 may be a radio frequency unit, and the processing unit 320 may be one or more processors.
- the transceiver unit 310 may be an input/output interface or a communication interface of the chip system
- the processing unit 320 may be a processor of the chip system, such as a central processing unit (CPU), specifically
- the schematic structure of the terminal may be the communication device 500 shown in FIG. 5, the transceiver unit 310 is specifically a communication interface 510, the processing unit 320 is specifically a processor 520, and the communication device 500 may also include a memory 530, which is used to save implementations.
- the program instructions and data necessary to realize the functions of the terminal are connected to the communication interface 510, the processor 520, and the memory 530.
- the above-mentioned chip system may be a system on chip (SOC) or a baseband chip.
- the baseband chip may include a processor, a channel encoder, a digital signal processor, a modem, and an interface module.
- the processor 520 includes one or more processors, where the processor may be a general-purpose central processing unit (CPU), a microprocessor, or an application specific integrated circuit (ASIC).
- the communication device 300 or the communication device 500 can execute each step executed by the terminal in the method provided in the embodiment of the present application.
- the communication device 400 includes a transceiving unit 410 and a processing unit 420.
- the transceiving unit 410 may also be a separate receiving unit and a sending unit. Communication connection between units.
- the communication device 400 may be a complete device, or a component having the functions of the aforementioned network device, or a chip system.
- the transceiver unit 410 may be a transmitter and a receiver, or an integrated transceiver, which may include an antenna and a radio frequency circuit
- the processing unit 420 may be a processor, such as a baseband chip.
- the transceiving unit 410 may be a radio frequency unit, and the processing unit 420 may be one or more processors.
- the terminal 400 is a chip system
- the transceiver unit 410 may be an input/output interface or a communication interface of the chip system
- the processing unit 420 may be a processor of the chip system, such as a central processing unit (CPU).
- the schematic structure of the time network device may be the communication device 600 shown in FIG. 6, the transceiving unit 410 is specifically a communication interface 610, the processing unit 420 is specifically a processor 620, and the communication device 600 may also include a memory 630, which is used to save implementations.
- the program instructions and data necessary to realize the function of the network device are connected to the communication interface 610, the processor 620, and the memory 630.
- the above-mentioned chip system may be a system on chip (SOC) or a baseband chip.
- the baseband chip may include a processor, a channel encoder, a digital signal processor, a modem, and an interface module.
- the processor 620 includes one or more processors, where the processor may be a general-purpose central processing unit (CPU), a microprocessor, or an application specific integrated circuit (ASIC).
- the communication device 400 or the communication device 600 can execute each step executed by the network device in the method provided in the embodiment of the present application.
- FIG. 7 is an interaction flow of an information sending and receiving method 100 provided by an embodiment of the application, and the method includes:
- Step 110 Generate first uplink information and second uplink information, where the first uplink information includes downlink HARQ feedback information, uplink scheduling request or uplink channel state information, and the second uplink information includes side-line HARQ feedback information or side-line Scheduling request
- the downlink HARQ feedback information refers to HARQ feedback information for downlink data, which is part of the uplink information sent by the terminal to the network device, and may be referred to as DL HARQ or Uu HARQ for short.
- the present application does not limit the sequence in which the terminal generates the first uplink information and the second uplink information.
- the terminal may generate two types of uplink information at the same time, or generate two types of uplink information successively.
- the side-line HARQ feedback information here is the side-line HARQ feedback information reported by the terminal to the network device, which may be referred to as SL HARQ for short.
- the downlink HARQ feedback information is used to indicate to the network device whether the downlink data is sent successfully. For example, the terminal does not receive the downlink data or the CRC check of the downlink data fails, and the terminal will feedback NACK. The network device will retransmit the downlink data after receiving the NACK fed back by the terminal. Correspondingly, if the terminal successfully receives the downlink data, it will feed back an ACK. The network device will know that the downlink data has been sent successfully after receiving the NACK fed back by the terminal.
- the side-line HARQ mechanism is similar to the HARQ mechanism of the Uu link. First, the terminal receiving the side-line data needs to feed back ACK/NACK to the terminal that sends the side-line data. NACK is reported to the network device.
- the uplink scheduling request UL SR is used to request uplink data resources
- the side-line scheduling request SL SR is used to request side-line data resources.
- Uplink channel state information UL CSI is used to report downlink channel state information, so that network equipment can adjust the size of downlink transmission resources or schedule appropriate uplink resources to terminal equipment.
- Uplink channel state information can include but is not limited to channel quality information CQI , Rank indication information RI, precoding matrix indication information PMI, layer indication information LI, and reference information number received power RSRP and other information.
- the side-line channel state information can be reported by the terminal to the network device so that the network device can learn the side-link channel state and schedule appropriate resources for the terminal device.
- the side-line channel state information can include but is not limited to channel quality information CQI, rank indicator Information RI, precoding matrix indication information PMI, layer indication information LI, and reference information number received power RSRP and other information.
- SL CSI can be periodic CSI and/or aperiodic CSI. Periodic CSI can be semi-statically configured by network equipment through high-level signaling, and aperiodic CSI can be triggered by network equipment or terminal equipment through dynamic signaling. .
- the foregoing step 110 may be implemented by the communication device 300 or the communication device 500, and specifically may be implemented by the processing unit 320 in the communication device 300 or the processor 520 in the communication device 500.
- Step 120 In response to that the uplink channel corresponding to the first uplink information and the uplink channel corresponding to the second uplink information overlap in whole or in part, send the first uplink information and the second uplink information with a higher priority ⁇ ; Correspondingly, the network device receives the first uplink information or the second uplink information.
- the priority order includes ⁇ downlink HARQ feedback information>sideline HARQ feedback information>uplink scheduling request>sideline scheduling request>uplink channel state information ⁇ .
- the priority order may be predefined by the protocol, or may be configured by the network device.
- the terminal device can only communicate with the network device through the uplink.
- the previous section describes that when the terminal device communicates with other UEs on the side link, it can work in mode 1 or mode 2.
- the first mode is a communication mode based on network equipment scheduling
- the second mode is a communication mode based on the terminal device's own selection of communication resources
- the second mode is that the UE can select resources for transmission by itself.
- the terminal device When the uplink channel corresponding to the first uplink information overlaps with the uplink channel corresponding to the second uplink information, if only the second uplink information is sent, the terminal device cannot currently communicate with the base station; if only the first uplink information is sent, the terminal The device can also communicate with other terminal devices in mode 2 while the base station maintains communication. Therefore, according to the method provided by the embodiment of the present application, when the same type of information conflicts between the uplink and the side row, the uplink-related information is sent first, which can ensure the operation of the communication system to the greatest extent and ensure the system performance. In addition, HARQ information is used to confirm the sent data.
- the terminal device does not use the HARQ process to send data before receiving the corresponding confirmation information, it will affect the delay, which means that HARQ information requires high delay.
- the terminal is generally configured with multiple SR transmission opportunities, and the delay requirement is lower than HARQ feedback information.
- the CSI report is only the reporting of channel state information, and the delay requirement is lower, so it is provided according to the embodiment of this application.
- the priority of the HARQ feedback information is higher than the priority of the scheduling request, and the priority of the scheduling request is higher than the priority of the channel state information. According to the priority provided in the embodiment of this application, it can ensure that the terminal equipment will be the most current. Important information is reported to the network equipment, and the transmission of information with a high delay requirement is guaranteed first, which can reduce the delay of data transmission in the case of conflicting uplink information resources.
- the terminal currently preferentially sends the higher priority information in the first uplink information and the second uplink information, and discards (drops) the lower priority information in the first uplink information and the second uplink information, or does not send it.
- Information with lower priority in the first uplink information and the second uplink information can also store the lower priority information and send it on the subsequent uplink channel. This is applicable to the case where the lower priority information does not require high delay. Taking SR as an example, the terminal can Send this SR at the next SR occasion.
- the sending step in the above step 120 may be executed by the communication device 300 or the communication device 500, specifically, it may be executed by the transceiver unit 310 in the communication device 300 or the communication interface 510 in the communication device 500, or may be processed by the communication device 300.
- the unit 320 controls the transceiver unit 310 to execute, or the processor 520 in the communication device 500 controls the communication interface 510 to execute.
- the receiving step of the above step 120 can be executed by the communication device 400 or the communication device 600, specifically, it can be executed by the transceiver unit 410 in the communication device 400 or the communication interface 610 in the communication device 600, or can be executed by the processing unit in the communication device 400.
- 420 controls the transceiver unit 410 to execute, or the processor 620 in the communication device 600 controls the communication interface 610 to execute.
- the uplink channel corresponding to the first uplink information refers to the uplink resource configured or instructed by the network device to send the first uplink information.
- the corresponding uplink channel may be configured or instructed by the network device.
- the corresponding uplink channel for the scheduling request SR may be the PUCCH configured or indicated by the network device, and the corresponding uplink channel for the channel state information may be the network device Configured or indicated uplink control channel PUCCH or uplink shared channel PUSCH.
- the information sending and receiving methods provided in the embodiments of this application propose a solution for uplink information conflicts.
- the terminal sends higher priority information first according to the priority order, and defines possible conflicts in the uplink transmission process.
- the priority sequence between uplink information and side-line information fully considers the importance of different uplink information and side-line information and the tolerance to delay, etc., reducing the probability of communication errors and ensuring the Uu link and side to the greatest extent. Reliability of uplink transmission in the scenario of uplink coexistence.
- the side-line HARQ feedback information may include side-line HARQ feedback information (hereinafter referred to as DG SL HARQ) for dynamic scheduling grant (DG) data, and for pre-configured scheduling
- DG SL HARQ side-line HARQ feedback information
- the side-line HARQ feedback information of authorized (configured grant, CG) data (hereinafter referred to as CG SL HARQ); in this case, the priority order can be ⁇ DG SL HARQ>DL HARQ>CG SL HARQ>SL SR> UL SR ⁇ .
- the downlink HARQ feedback information may include downlink HARQ feedback information (hereinafter referred to as DG DL HARQ) for the data of the dynamic scheduling authorized DG, and for semi-persistent (Semi-Persistent, SPS) scheduling.
- Data downlink HARQ feedback information (hereinafter referred to as SPS DL HARQ)
- the priority order can be ⁇ DG DL HARQ>DG SL HARQ>SPS DL HARQ>CG SL HARQ>SL SR>UL SR ⁇ .
- the second uplink information further includes side-line channel state information.
- the terminal may also report side-link channel state information (hereinafter referred to as SL CSI) to the network device.
- SL CSI side-link channel state information
- the same SL CSI can also be carried on PUCCH resources.
- the priority order described above also includes ⁇ uplink channel state information>side row channel state information ⁇ .
- the priority order can be ⁇ downlink HARQ feedback information>sideline HARQ feedback information>uplink scheduling request>sideline scheduling request>channel state information ⁇ , or ⁇ DG SL HARQ>DL HARQ>CG SL HARQ> SL SR>UL SR>CSI ⁇ , or ⁇ DG DL HARQ>DG SL HARQ> SPS DL HARQ> CG SL HARQ> SL SR> UL SR> CSI ⁇ , at the same time, regardless of the uplink or side line, the priority between channel state information The level is determined by the priority value, where the smaller the priority value, the higher the priority.
- the embodiment of the present application also provides a method for calculating the priority value of the channel state information, wherein the calculation formula of the priority value of the uplink channel state information is:
- Pri iCSI (y,k,c,s) 2 ⁇ N cells ⁇ M s ⁇ y+N cells ⁇ M s ⁇ k+M s ⁇ c+s+P ch,UL CSI ;
- Pri iCSI (y,k,c,s) 2 ⁇ N cells ⁇ M s ⁇ y+N cells ⁇ M s ⁇ k+M s ⁇ c+s+P ch,SL CSI ;
- N cells in the formula represents the maximum number of serving cells that the terminal can access.
- the serving cells include both the primary serving cell and the secondary serving cell.
- the parameter N cells is configured by the network equipment or reported by the terminal equipment;
- M s represents the maximum number of CSI report configurations, that is, the maximum value of the types of CSI that the terminal can be configured to report;
- parameter k is used to characterize whether the CSI contains RSRP (also called L1-RSRP) of the physical layer.
- RSRP also called L1-RSRP
- parameters P ch, UL CSI are adjustment values for the uplink channel state-information priority value
- parameters P ch, SL CSI are for The adjustment value of the priority value of the side-line channel state information.
- the above-mentioned parameters may be configured by the network device, or some parameters may be pre-configured, which is not limited in this application.
- the calculation formula for the priority value of the uplink channel state information and the side channel state information can be the same, namely
- Pri iCSI (y,k,c,s) 2 ⁇ N cells ⁇ M s ⁇ y+N cells ⁇ M s ⁇ k+M s ⁇ c+s+P ch,CSI ;
- the network device can configure a set of parameter values for the uplink and side rows, or the uplink and side rows correspond to a set of predefined parameters, or the network device can configure different values of parameters P ch, CSI for the uplink and side rows.
- parameter P ch, CSI includes parameter P ch
- CSI can include two values, for example, parameter P ch, CSI is P ch, UL CSI or P ch, SL CSI , P ch, UL CSI is for uplink channel state-information
- the adjustment value of the priority value, P ch, SL CSI is an adjustment value for the priority value of the side-line channel state information, and the terminal can determine the value of the parameter P ch, CSI according to the link corresponding to the channel state information.
- the parameters P ch, UL CSI and the parameters P ch, SL CSI can also be configured through high-level signaling.
- the high-level signaling may be RRC signaling, MIB message or SIB message, MAC layer control information, etc.
- the two parameters are dynamically indicated through physical layer signaling.
- the physical layer signaling can be downlink control information (DCI), sidelink control information (SCI), or uplink control information (uplink control information).
- the network device or terminal can configure the above two adjustment values according to specific link (UL/SL) and QoS requirements, as well as the content contained in the CSI (RSRP, CQI/PMI), etc., to configure the above two adjustment values.
- CSI of the side link is generally aperiodic CSI, it may need to be transmitted on the PUCCH resource.
- the different values of the two adjustment parameters can enable the network device or terminal to respond according to the importance of the information and the delay requirements.
- the priority value of the sideline or uplink CSI is compensated to avoid some SL CSI with higher actual importance or higher delay requirements from being reported.
- the parameters P ch, UL CSI and the parameters P ch, SL CSI are all integers, and P ch, SL CSI ⁇ [a, b], the value a is and the value b can be positive or negative, such as [- 1,1], [-2, -1], [1,2].
- the network device can also configure different values of P ch and CSI for periodic CSI and aperiodic CSI.
- ch, UL CSI 2 when a network device or terminal device triggers an aperiodic channel measurement and scheduling uplink control channel PUCCH resource of the terminal device on the side link, and the PUCCH of the SL CSI and another one are sent in a time slot
- the PUCCH carrying the uplink periodic CSI conflicts, by configuring different P ch and CSI values, the reliability of sideline CSI reporting can be improved.
- the above method further includes calculating the priority value of the uplink channel state information and the priority of the sideline channel state information Value, the information with the lower priority value in the uplink channel state information and the side channel state information is sent.
- the terminal when the uplink channel conflicts, the terminal preferentially sends information with higher priority, and specifically when the UL CSI conflicts with the SL CSI, the terminal will give priority to the two corresponding ones. Level value, send the information with the lower priority value (that is, the higher priority) of the two.
- the terminal can compare the priority of UL CSI and SL CSI in a quantitative manner, which simplifies the uplink information transmission process in conflict scenarios, and can adjust or compensate the priority through different adjustment parameters to ensure the maximum degree of uplink communication. reliability.
- the interaction process of the information sending and receiving method 200 provided by the embodiment of the present application will be described below with reference to FIG. 8.
- the method includes:
- Step 210 Generate first uplink information and second uplink information, where the first uplink information includes downlink HARQ feedback information, uplink scheduling request or uplink data, and the second uplink information includes sideline HARQ feedback information or sideline scheduling request.
- the above step 210 may be implemented by the communication device 300 or the communication device 500, and specifically may be implemented by the processing unit 320 in the communication device 300 or the processor 520 in the communication device 500.
- this application does not limit the sequence of the terminal generating the first uplink information and the second uplink information.
- Downlink HARQ feedback information and uplink scheduling requests are generally carried on an uplink control channel (such as PUCCH), and uplink data is generally carried on an uplink data channel (such as a physical uplink shared channel (PUSCH)).
- the side-line HARQ feedback information and the side-line scheduling request, the uplink information related to the side link can be carried on the uplink control channel.
- the network device will configure or indicate to the terminal the resources that can be used to send the above-mentioned different types of information.
- PUCCH resources used to send DLHARQ PUCCH resources used to send ULSR, and SLHARQ sent
- the PUCCH resource and the PUCCH resource used to send SLHARQ are independently configured or indicated by the network device.
- Step 220 In response to the full or partial overlap of the uplink channel corresponding to the first uplink information and the uplink channel corresponding to the second uplink information, determine the service priority of the data corresponding to the first uplink information and the second uplink channel. The service priority of the data corresponding to the uplink information.
- the resource corresponding to the at least one first uplink information and the resource corresponding to the at least one second uplink information conflict, in other words, the resource corresponding to the at least one first uplink information and the at least one second uplink information
- the resources corresponding to the uplink information described in the embodiments of the present application refer to resources that are semi-statically configured or dynamically indicated by the network equipment and can be used to send the uplink information.
- the data corresponding to the HARQ feedback information is the data carried on the physical shared channel fed back by the HARQ feedback information
- the data corresponding to the scheduling request is the data carried on the data channel requested by the scheduling request
- uplink data The corresponding data is itself.
- the service priority may be the priority of the logical channel where the data is generated, or the service priority may be the priority corresponding to the QoS requirement of the service data.
- the foregoing step 220 may be implemented by the communication device 300 or the communication device 500, and specifically may be implemented by the processing unit 320 in the communication device 300 or the processor 520 in the communication device 500.
- Step 230 Send information with higher service priority of corresponding data in the first uplink information and the second uplink information.
- the network device receives the first uplink information or the second uplink information.
- the terminal currently preferentially sends information with a higher service priority for the corresponding data in the first uplink information and the second uplink information, and drops (drops) the higher service priority of the corresponding data in the first uplink information and the second uplink information.
- Low information or in other words, do not send the information with the lower service priority of the corresponding data in the first uplink information and the second uplink information.
- the terminal can also store the lower priority information and send it on the subsequent uplink channel. This is applicable to the case where the lower priority information does not require high delay. Taking SR as an example, the terminal can Send this SR at the next SR occasion.
- the terminal when the first uplink information is the downlink HARQ feedback information and the second uplink information is the side-line scheduling request, the terminal multiplexes the side-line scheduling request and Downlink HARQ feedback information is sent together.
- the sending information with higher service priority of corresponding data in the first uplink information and the second uplink information includes multiplexing the sideline scheduling request to the carrier carrying the downlink HARQ feedback information On the uplink channel, and send the uplink channel.
- the multiplexed uplink control channel may also have resource conflicts with the uplink data channel. At this time, the terminal still only carries downlink HARQ feedback information when sending the uplink control channel.
- the terminal when the first uplink information is the side-line HARQ feedback information and the second uplink information is the uplink scheduling request, the terminal multiplexes the uplink scheduling request and the side The HARQ feedback information is sent together.
- the sending information with a higher service priority of corresponding data in the first uplink information and the second uplink information includes multiplexing the uplink scheduling request to the carrier carrying the side-line HARQ feedback information On the uplink channel, and send the uplink channel.
- the sending step in the above step 230 can be executed by the communication device 300 or the communication device 500, specifically can be executed by the transceiver unit 310 in the communication device 300 or the communication interface 510 in the communication device 500, or can be processed by the communication device 300
- the unit 320 controls the transceiver unit 310 to execute, or the processor 520 in the communication device 500 controls the communication interface 510 to execute.
- the receiving step of the foregoing step 230 may be performed by the communication device 400 or the communication device 600, specifically, it may be performed by the transceiver unit 410 in the communication device 400 or the communication interface 610 in the communication device 600, or may be performed by the processing unit in the communication device 400.
- 420 controls the transceiver unit 410 to execute, or the processor 620 in the communication device 600 controls the communication interface 610 to execute.
- the terminal can determine the service priority of data corresponding to different uplink information when the uplink channel conflicts, and determine the priority according to the service priority of the corresponding data. Information sent.
- the uplink and the side link coexist, it can avoid conflicts between uplink transmissions, reduce communication errors, and ensure the transmission of data-related uplink data with high service priority, ensuring uplink transmission reliability and transmission efficiency .
- the methods 100 and 200 for information sending and receiving provided in the embodiments of the present application can be applied separately or in combination.
- the terminal preferentially adopts the method 200, and determines the information to be sent preferentially according to the service priority of the data corresponding to the uplink information.
- the terminal adopts method 100, according to the priority order and/or the priority of the channel state information The level value determines which information is sent first.
- Table 1 shows a method of combining application methods 100 and 200, and the terminal can determine the information to be sent first according to the rules in Table 1.
- PUSCH can also be divided into two types: UL-SCH and UCI only.
- UL-SCH indicates that the PUSCH carries data
- UCI only indicates that the PUSCH only carries uplink control information (uplink control information, UCI).
- the terminal when one or more SL SRs collide with a PUCCH carrying DL HARQ or UL CSI, the terminal can multiplex the SL SR onto the DL HARQ/UL CSI resources.
- the embodiment of the present application also provides an information sending and receiving method 300. According to this method 300, a terminal can determine and send multiplexed uplink information. The method includes:
- Step 310 Generate at least one scheduling request and downlink HARQ feedback information, where the at least one scheduling request includes an uplink scheduling request and/or a side scheduling request, and the downlink HARQ feedback information is a positive acknowledgement ACK or a negative acknowledgement NCAK.
- the terminal may need to send at least one scheduling request and downlink HARQ feedback information at the same time (for example, the same subframe, the same time slot, or the same symbol).
- This application does not limit the sequence between generating at least one SR and generating DL HARQ.
- the foregoing step 310 may be implemented by the communication device 300 or the communication device 500, and specifically may be implemented by the processing unit 320 in the communication device 300 or the processor 520 in the communication device 500.
- Step 320 In response to the first resource and the second resource fully or partially overlapping, determine a target cyclic shift value according to the at least one scheduling request and downlink HARQ feedback information, where the first resource is configured by the network device for The resource for sending the scheduling request, and the second resource is a resource used to carry the downlink HARQ feedback information.
- the second resource may be a PUCCH used to carry DL HARQ.
- the foregoing step 320 may be implemented by the communication device 300 or the communication device 500, and specifically may be implemented by the processing unit 320 in the communication device 300 or the processor 520 in the communication device 500.
- different offset values of the uplink control information sequence can be used to indicate different information carried by PUCCH, that is, the combination of at least one scheduling request and DL HARQ and at least There is a corresponding relationship between a cyclic shift value.
- the corresponding relationship may be pre-defined or pre-configured, or configured by the network device.
- PUCCH format 0 can only carry 1-2 bits of information.
- determining the target cyclic shift value according to the at least one scheduling request and the downlink HARQ feedback information includes a correspondence between a combination of the at least one scheduling request and the downlink HARQ feedback information and the at least one cyclic shift value The relationship determines the target cyclic shift value.
- the correspondence in some embodiments includes: DL HARQ corresponds to the first set of cyclic shift values; the combination of DL HARQ and UL SR, or the combination of DL HARQ and SL SR corresponds to the second set of cyclic shift values; DL HARQ and UL SR and The combination of SL SR corresponds to the third set of cyclic shift values.
- DLACK/NACK corresponds to the first set of cyclic shift values
- the combination of DLACK/NACK and UL SR, or the combination of DLACK/NACK and SL SR corresponds to the second set of cyclic shift values
- DLACK/NACK and UL SR and The combination of SL SR corresponds to the third set of cyclic shift values.
- the first cyclic shift value set is ⁇ 0,6 ⁇
- the second cyclic shift value set is ⁇ 3,9 ⁇
- the third cyclic shift value set is ⁇ 4 ,10 ⁇ or ⁇ 5,11 ⁇ .
- the first cyclic shift value set is ⁇ 0,3,6,9 ⁇
- the second cyclic shift value set is ⁇ 1,4,7,10 ⁇
- the third cyclic shift value set is ⁇ 1,4,7,10 ⁇
- the set of values is ⁇ 2,5,8,11 ⁇ .
- Table 2DLHARQ is 1 bit
- Table 3DLHARQ is 2 bits
- M CS Information carried by PUCCH ⁇ 0,3,6,9 ⁇ DLACK/NACK ⁇ 1,4,7,10 ⁇ DL ACK/NACK+ (UL SR or SL SR) ⁇ 2,5,8,11 ⁇ DL ACK/NACK+UL SR+SL SR
- Table 2 and Table 3 show the correspondence between the offset value of the uplink control information sequence and the information carried by the PUCCH when DL HARQ is multiplexed with UL SR and/or SL SR.
- the terminal determines the target cyclic shift value of the uplink control information sequence according to the corresponding relationship defined in Table 2 or Table 3.
- Table 2 and Table 3 are further designs based on the DL HARQ and UL SR multiplexing rules defined in NR R15.
- Table 4 and Table 5 show the correspondence between the combination of DL HARQ and UL SR defined in NR and the cyclic shift value.
- Table 4 DLHARQ is 1 bit
- Table 5 DLHARQ is 2 bits
- the method 300 defines an additional cyclic shift to indicate the combination of DL HARQ and UL SR and SL SR.
- the terminal uses the same as UL SR and UL SR.
- the same cyclic shift value indicates the combination of DL HARQ and SL SR. It can be seen in combination with Figure 9 that when DLHARQ is 1 bit, the newly added cyclic shift value (take ⁇ 4,10 ⁇ as an example) is the same as the existing two pairs of cyclic shift values at a uniform distance.
- the cross-correlation between the sequences generated by the two cyclic shift values is smaller, and the receiving end has a lower probability of ACK/NACK decoding errors.
- the distance between the newly added pair of cyclic shift values (take ⁇ 4,10 ⁇ as an example) and the other two pairs of cyclic shift values is as large as possible, so that the receiving end is wrong about the three combinations of information carried by PUCCH.
- the probability of checking is kept at a low value.
- the method 300 when at least one scheduling request is a side scheduling request or an uplink scheduling request, that is to say, when the information to be carried on the PUCCH is DL ACK/NACK+ (UL SR or SL SR), the method 300 also It includes: sending indication information, the indication information being used to indicate whether the uplink control information sequence bears an uplink scheduling request or a sideline scheduling request.
- the indication information may be carried on a buffer status report (buffer status report, BSR) or MAC CE.
- the sending instruction information may be after step 340 or at the same time as step 340, which is not limited in this application.
- Step 330 Generate an uplink control information sequence according to the target cyclic shift value M CS and the initial cyclic shift value M 0.
- the uplink control information sequence S(n) is realized by adjusting the cyclic shift value on the basis of the base sequence r(n):
- the foregoing step 330 may be implemented by the communication device 300 or the communication device 500, and specifically may be implemented by the processing unit 320 in the communication device 300 or the processor 520 in the communication device 500.
- Step 340 Send the uplink control information sequence on the second resource.
- the network device receives the uplink control information sequence on the second resource.
- the uplink control information sequence generated by the terminal according to the foregoing steps may indicate three combinations of DLACK/NACK, DL ACK/NACK+ (UL SR or SL SR), or DL ACK/NACK+UL SR+SL SR.
- the uplink control information sequence is mapped to the PUCCH used to carry DL HARQ, that is, the second resource.
- the terminal sends the PUCCH, in other words, the terminal sends the uplink control information sequence generated above on the PUCCH.
- the network device receives the PUCCH.
- the sending step in the above step 340 can be executed by the communication device 300 or the communication device 500, specifically can be executed by the transceiver unit 310 in the communication device 300 or the communication interface 510 in the communication device 500, or can be processed by the communication device 300
- the unit 320 controls the transceiver unit 310 to execute, or the processor 520 in the communication device 500 controls the communication interface 510 to execute.
- the receiving step of the above step 340 may be executed by the communication device 400 or the communication device 600, specifically it may be executed by the transceiving unit 410 in the communication device 400 or the communication interface 610 in the communication device 600, or may be executed by the processing unit in the communication device 400 420 controls the transceiver unit 410 to execute, or the processor 620 in the communication device 600 controls the communication interface 610 to execute.
- Step 350 The network device determines the information carried on the PUCCH according to the target cyclic shift value in the uplink control information sequence.
- the information carried on the PUCCH is DL HARQ, a combination of DL HARQ and UL SR, a combination of DL HARQ and SL SR, or a combination of DL HARQ and UL SR and SL SR.
- the network device receives indication information, the indication information is used to indicate whether the uplink control information sequence carries ULSR or SLSR.
- the indication information may be carried on a buffer status report (buffer status report, BSR) or MAC CE.
- the foregoing step 350 may be implemented by the communication device 400 or the communication device 600, and specifically may be implemented by the processing unit 420 in the communication device 400, or implemented by the processor 620 in the communication device 600.
- the terminal can reuse the same PUCCH resource to carry multiple combinations of DL HARQ and UL SR and SL SR, efficiently utilize uplink control channel resources, and improve communication efficiency.
- the newly added cyclic shift value (take ⁇ 4,10 ⁇ as an example) is the same as the existing two pairs of cyclic shift values at a uniform distance.
- the two cyclic shift values The cross-correlation between the sequences generated by the shift value is smaller, and the receiving end has a lower probability of decoding errors in ACK/NACK.
- the PUCCH resource used to carry DL HARQ includes more than one symbol in the time domain, and PUCCH format 2. 3, 4 can carry more than 2 bits of uplink information.
- PUCCH format 2, 3 can include any number of bits greater than 2
- PUCCH format 4 can include more than 2 but less than 155 bits.
- the embodiment of the application also provides a method 400 for sending and receiving information.
- the terminal can determine the need for multiplexing according to the number K of UL SR configurations overlapping with DL HARQ PUCCH and the number of SL SR configurations overlapping with DL HARQ PUCCH S The number of SR bits.
- the method includes:
- Step 410 Generate at least one scheduling request and downlink HARQ feedback information, where the at least one scheduling request includes an uplink scheduling request and a sideline scheduling request, and the downlink HARQ feedback information is a positive acknowledgement ACK or a negative acknowledgement NCAK.
- Step 310 may be implemented by the communication device 300 or the communication device 500, and specifically may be implemented by the processing unit 320 in the communication device 300 or the processor 520 in the communication device 500.
- Step 420 Determine the number of multiplexing bits according to the number of second resources that overlap with the first resource and the number of third resources that overlap with the first resource; wherein, the first resource is used for The uplink control channel carrying the downlink HARQ feedback information, the second resource is a resource configured by a network device to send the uplink scheduling request, and the third resource is a resource configured by the network device to send the Resource requested by sideline scheduling.
- the foregoing second resource may be a resource configured by the network device through an SR configuration and/or an SR resource configuration IE for sending the ULSR.
- the third resource is similar to the second resource and will not be repeated here.
- the second resource may be an SR transmission opportunity (SR occasion), that is, a second resource is an UL SR occasion, and the same third resource is an SLSR occasion.
- step 420 is: determining the number of multiplexed bits according to the number of SR configurations corresponding to the second resource overlapping with the first resource and the number of SR configurations corresponding to the third resource overlapping with the first resource.
- the terminal determines the number of SR bits that need to be multiplexed according to the number K of UL SR configurations that overlap with DL HARQ PUCCH and the number of SL SR configurations S that overlap with DL HARQ PUCCH. Specifically, the terminal can calculate the number of SR bits that need to be multiplexed according to the following formula:
- ceil() means round up.
- the terminal determines the number of UL SR bits to be multiplexed G UL SR and the number of SL SR bits that need to be multiplexed according to the number K of UL SR configurations overlapping with DL HARQ PUCCH and the number of SL SR configurations overlapping with DL HARQ PUCCH respectively S Number G SL SR :
- the foregoing step 420 may be implemented by the communication device 300 or the communication device 500, and specifically may be implemented by the processing unit 320 in the communication device 300 or the processor 520 in the communication device 500.
- Step 430 Send the number of multiplexed bits SR and the downlink HARQ feedback information on the first resource. Or send G UL SR UL SR and G SL SR SL SR and the downlink HARQ feedback information on the first resource.
- the terminal can first generate the information bit stream that needs to be sent.
- the optional terminal can place G UL SR UL SR bits in high bits, and G SL SR SR bits.
- the SR bit is placed in the low bit, and then the generated bit stream is modulated and coded at the physical layer, and finally the modulated and coded information is mapped to the first resource.
- the terminal can comprehensively consider the resource overlap between the uplink scheduling request and the side scheduling request and the uplink channel carrying the HARQ feedback information, and multiplex the scheduling request and the HARQ feedback information when they overlap, thereby saving uplink channel resources. Ensure the normal operation of the communication system.
- the above step 430 can be performed by the communication device 300 or the communication device 500, specifically, it can be performed by the transceiver unit 310 in the communication device 300 or the communication interface 510 in the communication device 500, or can be controlled by the processing unit 320 in the communication device 300.
- the unit 310 is executed, or the processor 520 in the communication device 500 controls the communication interface 510 to execute.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division, and there may be Other division methods, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual communication connections may be indirect couplings or communication connections through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.
- the units in the device embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the processor in the embodiment of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (digital signal processors, DSP), and application specific integrated circuits. (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof.
- the general-purpose processor may be a microprocessor or any conventional processor.
- the methods in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
- software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
- the computer program product includes one or more computer programs or instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer program or instruction may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server integrating one or more available media.
- the usable medium can be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it can also be an optical medium, such as a CD-ROM, a DVD; and it can also be a semiconductor medium, such as a solid state disk (SSD), random Access memory (random access memory, RAM), read-only memory (read-only memory, ROM), registers, etc.
- An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium.
- the storage medium may also be an integral part of the processor.
- the processor and the storage medium may be located in the ASIC.
- the ASIC can be located in a network device or a terminal device.
- the processor and the storage medium may also exist as discrete components in the sending device or the receiving device.
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Abstract
本申请提供了一种信息发送和接收的方法及装置,可以应用于车联网,例如V2X、LTE-V、V2V等,或可以用于D2D,智能驾驶,智能网联车等领域。在第一上行信息对应的上行信道和第二上行信息对应的上行信道全部或部分重叠的情况下,终端根据优先级顺序发送所述第一上行信息和所述第二上行信息中优先级较高的信息,充分考虑了不同上行信息和侧行信息的重要性和对时延的容忍度等,降低通信错误的概率同时最大程度地保障Uu链路和侧行链路共存的场景下上行传输的可靠性。
Description
本申请涉及通信领域,特别涉及通信领域中的一种信息发送和接收的方法及装置。
设备到设备(Device to Device,D2D)通信、车与车(Vehicle to Vehicle,V2V)通信、车与行人V2P(Vehicle to Pedestrian,V2P)通信或车与基建/网络V2I/N(Vehicle to Infrastructure/Network,V2I/N)通信是终端设备(terminal device)之间直接进行通信的技术,V2V、V2P以及V2I/N统称为V2X,即车与任何事物相通信。设备与设备之间的直接通信一般也成为直连通信或侧行通信。
第三代合作伙伴计划(3
rd Generation Partnership Project,3GPP)对长期演进(Long Term Evolution,LTE)和新空口(new radio,NR)(也可以称为第五代(5
th Generation,5G)网络)中的车辆对一切(vehicle-to-everything,V2X)通信进行了标准化。此外,LTE和NR中引入了V2X业务。
侧行通信包含两种通信模式:第一种通信模式是基于基站调度的模式,即终端设备根据基站的调度信息在被调度的时频资源上发送侧行通信的控制信息和数据;第二种通信模式是基于终端设备自行选择通信资源的模式,即终端设备在侧行资源池中自行选择时频资源,并在选择的时频资源上发送控制信息和数据。另外在侧行通信中除了终端设备之间的通信,还涉及到部分终端设备与网络设备之间的交互。例如在第一种通信模式中,终端设备可能需要向网络设备发送调度请求来请求侧行链路的资源。在两种通信模式中,终端设备可能都需要向网络设备发送类似的混合自动重传请求(hybrid automatic repeat request,HARQ)的反馈信息,用于确认侧行数据信道PSSCH的发送是否成功,等等。
例如上述的这些情况下,进行侧行通信的终端设备需要占用上行资源来发送侧行相关的信息。此时,侧行相关的信息可能与蜂窝链路上的上行信息出现冲突,会同时影响侧行链路和蜂窝链路上的通信。
发明内容
本申请实施例提供一种信息发送和接收的方法及装置,在上行信道之间出现冲突的情况下能够合理地处理信息发送,保证通信质量和通信效率。
第一方面,提供了一种信息发送的方法,该方法的执行主体可以是终端,终端可以是终端设备整机或终端设备中实现通信功能的部件,或终端也可以是通信芯片,或物理上分布式的通信功能体。该方法包括:生成第一上行信息和第二上行信息,所述第一上行信息包括下行HARQ反馈信息、上行调度请求或上行信道状态信息,所述第二上行信息包括侧行HARQ反馈信息或侧行调度请求;响应于所述第一上行信息对应 的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,发送所述第一上行信息和所述第二上行信息中优先级较高的信息;其中,优先级顺序包括{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>上行信道状态信息}。
通过第一方面提供的方法,在上行信息之间出现资源冲突或重叠的情况下,终端可以按照优先级顺序优先发送优先级较高的信息,按照本申请实施例提供的优先级顺序可以最大程度保证通信系统的运转,保证系统性能,同时降低数据传输的时延,保证通信质量和通信效率。
结合第一方面,在一种可能的实现方式中,所述第二上行信息还包括侧行信道状态信息,所述优先级顺序还包括{上行信道状态信息>侧行信道状态信息}。
结合第一方面,在一种可能的实现方式中,所述第二上行信息还包括侧行信道状态信息,所述优先级顺序包括{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>信道状态信息}。
在该种可能的实现方式中,在所述第一上行信息为所述上行信道状态信息且所述第二上行信息为所述侧行信道状态信息的情况下,所述发送所述第一上行信息和所述第二上行信息中优先级较高的信息,包括:发送所述上行信道状态信息和所述侧行信道状态信息中优先级值较低的信息,其中优先级值越低表示优先级越高。
结合第一方面,在一种可能的实现方式中,该方法还包括:计算所述上行信道状态信息的优先级值以及所述侧行信道状态信息的优先级值;其中,所述上行信道状态信息的优先级值和所述侧行信道状态信息的优先值满足:Pri
iCSI(y,k,s,s)=2·N
cells·M
s·y+N
cells·M
s·k+M
s·c+s+P
ch,CSI;参数P
ch,CSI可以包括两个值,例如参数P
ch,CSI为P
ch,UL CSI或P
ch,SL CSI,P
ch,UL CSI为针对上行信道状态-信息优先级值的调整值,P
ch,SL CSI为针对侧行信道状态信息优先级值的调整值,终端根据信道状态信息对应的链路确定参数P
ch,CSI的值;参数y用于表示承载CSI的信道;参数k用于表示CSI中是否包含物理层的RSRP;参数c为服务小区的索引;参数N
cells表示终端设备可以接入的最大的服务小区个数,其中服务小区既包含主服务小区也包含辅服务小区,可选的,参数N
cells是由网络设备配置的或者终端设备上报的;参数s为CSI报告的标识;参数M
s表示最大的CSI报告配置数量。
结合第一方面,在一种可能的实现方式中,参数P
ch,CSI的值P
ch,UL CSI和P
ch,SL CSI是预定义的,或通过高层信令配置的。
第二方面,提供了一种信息发送的方法,该方法的执行主体可以是终端,终端可以是终端设备整机或终端设备中实现通信功能的部件,或终端也可以是通信芯片,或物理上分布式的通信功能体。该方法包括:生成第一上行信息和第二上行信息,所述第一上行信息包括下行HARQ反馈信息、上行调度请求或上行数据,所述第二上行信息包括侧行HARQ反馈信息或侧行调度请求;响应于所述第一上行信息对应的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,确定所述第一上行信息对应的数据的业务优先级和所述第二上行信息对应的数据的业务优先级;发送所述第一上行信息和所述第二上行信息中对应数据的业务优先级较高的信息。
通过第二方面提供的方法,终端可以在上行信道出现冲突的时候,确定不同上行信息分别对应的数据的业务优先级,并根据对应数据的业务优先级确定优先发送的信 息。在上行链路和侧行链路共存的场景下,能够避免上行传输之间的冲突,减少通信错误,并保证业务优先级高的数据相关的上行数据的传输,保证上行传输可靠性和传输效率。
结合第二方面,在一种可能的实现方式中,在所述第一上行信息为所述下行HARQ反馈信息且所述第二上行信息为所述侧行调度请求的情况下,所述发送所述第一上行信息和所述第二上行信息中对应数据的业务优先级较高的信息,包括:将所述侧行调度请求复用至承载所述下行HARQ反馈信息的上行信道上,并发送所述上行信道。
结合第二方面,在一种可能的实现方式中,HARQ反馈信息对应的数据为所述HARQ反馈信息所反馈的数据信道上承载的数据,调度请求对应的数据为所述调度请求所请求的数据信道上承载的数据。
第三方面,提供了一种信息发送的方法,该方法的执行主体可以是终端,终端可以是终端设备整机或终端设备中实现通信功能的部件,或终端也可以是通信芯片,或物理上分布式的通信功能体。该方法包括:生成至少一个调度请求和下行HARQ反馈信息,其中,所述至少一个调度请求包括上行调度请求或侧行调度请求,所述下行HARQ反馈信息为肯定确认ACK或否定确认NCAK;响应于第一资源和第二资源全部或部分重叠,根据所述至少一个调度请求和下行HARQ反馈信息确定目标循环移位值,其中,所述第一资源为网络设备配置的用于发送调度请求的资源,所述第二资源为用于承载所述下行HARQ反馈信息的资源;根据所述目标循环移位值和初始循环移位值生成上行控制信息序列;在所述第二资源上发送所述上行控制信息序列。
通过第三方面提供的方法,终端可以复用相同的PUCCH资源来承载DL HARQ和UL SR和SL SR的多种组合,高效利用上行控制信道资源,提高通信效率。
结合第三方面,在一种可能的实现方式中,所述根据所述至少一个调度请求和下行HARQ反馈信息确定目标循环移位值,包括:根据所述至少一个调度请求和所述下行HARQ反馈信息与至少一个循环移位值之间的对应关系确定目标循环移位值。
结合第三方面,在一种可能的实现方式中,所述对应关系包括:下行HARQ反馈信息对应第一循环移位值集合;下行HARQ反馈信息和上行调度请求,或下行HARQ反馈信息和侧行调度请求对应第二循环移位值集合;下行HARQ反馈信息和上行调度请求和侧行调度请求对应第三循环移位值集合;其中,所述第一循环移位值集合和所述第二循环移位值集合和所述第三循环移位值集合中的任两个循环移位值不同。
结合第三方面,在一种可能的实现方式中,在所述下行HARQ反馈信息为1比特的情况下,所述第一循环移位值集合为{0,6},所述第二循环移位值集合为{3,9},所述第三循环移位值集合为{4,10}或{5,11};或,在所述下行HARQ反馈信息为2比特的情况下,所述第一循环移位值集合为{0,3,6,9},所述第二循环移位值集合为{1,4,7,10},所述第三循环移位值集合为{2,5,8,11}。
进一步的,当DLHARQ为1比特时新增的循环移位值(以{4,10}为例)与现有的两对循环移位值一样间隔均匀的距离,这种情况下,两个循环移位值生成的序列之间的互相关性更小,接收端对ACK/NACK解码错误的概率更低。且新增的一对循环移位值(以{4,10}为例)与其他两对循环移位值之间的距离尽可能大,使得接收端对PUCCH承载的信息的三种组合的错检概率保持在一个较低的值。
结合第三方面,在一种可能的实现方式中,在所述至少一个调度请求为上行调度请求或侧行调度请求的情况下,该方法还包括:发送指示信息,所述指示信息用于指示所述上行控制信息序列承载的是上行调度请求还是侧行调度请求。可选的,该指示信息可以承载于BSR,这种情况下终端发送BSR,通过BSR指示发送的SR用于请求上行资源或侧行资源。
第四方面,提供了一种信息发送的方法,该方法的执行主体可以是终端,终端可以是终端设备整机或终端设备中实现通信功能的部件,或终端也可以是通信芯片,或物理上分布式的通信功能体。该方法包括:生成至少一个调度请求和下行HARQ反馈信息,其中,所述至少一个调度请求包括上行调度请求和侧行调度请求,所述下行HARQ反馈信息为肯定确认ACK或否定确认NCAK;根据与第一资源有重叠的第二资源的个数和与所述第一资源有重叠的第三资源的个数,确定复用比特数;其中,所述第一资源为用于承载所述下行HARQ反馈信息的上行控制信道,所述第二资源为网络设备配置的用于发送所述上行调度请求的资源,所述第三资源为所述网络设备配置的用于发送所述侧行调度请求的资源;在所述第一资源上发送所述复用比特数个SR和所述下行HARQ反馈信息。
通过第四方面提供的方法,终端可以综合考虑上行调度请求和侧行调度请求与承载HARQ反馈信息的上行信道之间的资源重叠,并在重叠时将调度请求和HARQ反馈信息进行复用,节省了上行信道资源,保证了通信系统的正常运转。
需要理解的是,上述的一个第二资源可以是网络设备通过一个SR configuration和/或一个SR resource configuration IE配置的用于发送ULSR的资源。第三资源与第二资源类似,此处不再赘述。
可选的,在一些实现方式中,第二资源可以是SR发送机会(SR occasion),也就是说一个第二资源为一个UL SR occasion,同样的一个第三资源为一个SL SR occasion。此时根据与第一资源有重叠的第二资源的个数和与所述第一资源有重叠的第三资源的个数,确定复用比特数,可以替换为:根据与第一资源有重叠的第二资源对应的SR configuration个数和与所述第一资源有重叠的第三资源对应的SR configuration个数,确定复用比特数。
第五方面,提供了一种信息发送的方法,该方法的执行主体可以是终端,终端可以是终端设备整机或终端设备中实现通信功能的部件,或终端也可以是通信芯片,或物理上分布式的通信功能体。该方法包括:生成上行信道状态信息和侧行信道状态信息;响应于所述上行信道状态信息对应的上行信道和所述侧行信道状态信息对应的上行信道全部或部分重叠,计算所述上行信道状态信息的优先级值以及所述侧行信道状态信息的优先级值,发送所述上行信道状态信息和所述侧行信道状态信息中优先级值较低的信息。
结合第五方面,在一种可能的实现方式中,所述上行信道状态信息的优先级值和所述侧行信道状态信息的优先值满足:Pri
iCSI(y,k,c,s)=2·N
cells·M
s·y+N
cells·M
s·k+M
s·c+s+P
ch,CSI;参数P
ch,CSI可以包括两个值,例如P
ch,CSI为参数P
ch,UL CSI或P
ch,SL CSI,P
ch,UL CSI为针对上行信道状态-信息优先级值的调整值,P
ch,SL CSI为针对侧行信道状态信息优先级值的调整值,终端可以根据信道状态信息对应的链路确定参数P
ch,CSI的值;参 数y用于表示承载CSI的信道;参数k用于表示CSI中是否包含物理层的RSRP;参数c为服务小区的索引;参数N
cells表示终端可以接入的最大的服务小区个数,其中服务小区既包含主服务小区也包含辅服务小区,可选的,参数N
cells是由网络设备配置的或者终端设备上报的;参数s为CSI报告的标识;参数M
s表示最大的CSI报告配置数量。
结合第五方面,在一种可能的实现方式中,参数P
ch,CSI的值P
ch,UL CSI和P
ch,SL CSI是预定义的,或通过高层信令配置的。
第六方面,提供了一种通信装置,该装置包括:处理单元,用于生成第一上行信息和第二上行信息,所述第一上行信息包括下行HARQ反馈信息、上行调度请求或上行信道状态信息,所述第二上行信息包括侧行HARQ反馈信息或侧行调度请求;收发单元,用于响应于所述第一上行信息对应的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,发送所述第一上行信息和所述第二上行信息中优先级较高的信息;其中,优先级顺序包括{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>上行信道状态信息}。
结合第六方面,在一种可能的实现方式中,所述第二上行信息还包括侧行信道状态信息,所述优先级顺序还包括{上行信道状态信息>侧行信道状态信息}。
结合第六方面,在一种可能的实现方式中,其特征在于,所述第二上行信息还包括侧行信道状态信息,所述优先级顺序包括{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>信道状态信息};在所述第一上行信息为所述上行信道状态信息且所述第二上行信息为所述侧行信道状态信息的情况下,所述收发单元还用于发送所述上行信道状态信息和所述侧行信道状态信息中优先级值较低的信息,其中优先级值越低表示优先级越高。
结合第六方面,在一种可能的实现方式中,所述处理单元还用于计算所述上行信道状态信息的优先级值以及所述侧行信道状态信息的优先级值;其中,所述上行信道状态信息的优先级值和所述侧行信道状态信息的优先值满足:Pri
iCSI(y,k,c,s)=2·N
cells·M
s·y+N
cells·M
s·k+M
s·c+s+P
ch,CSI;参数P
ch,CSI可以包括两个值,例如P
ch,CSI为参数P
ch,UL CSI或P
ch,SL CSI,P
ch,UL CSI为针对上行信道状态-信息优先级值的调整值,P
ch,SL CSI为针对侧行信道状态信息优先级值的调整值,终端可以根据信道状态信息对应的链路确定参数P
ch,CSI的值;参数y用于表示承载CSI的信道;参数k用于表示CSI中是否包含物理层的RSRP;参数c为服务小区的索引;参数N
cells表示终端可以接入最大的服务小区个数,服务小区既包含主服务小区也包含辅服务小区,可选的,参数N
cells是由网络设备配置的或者终端设备上报的;参数s为CSI报告的标识;参数M
s表示最大的CSI报告配置数量。
结合第六方面,在一种可能的实现方式中,参数P
ch,CSI的值,例如P
ch,UL CSI和P
ch,SL CSI,是预定义的,或通过高层信令配置的。
第七方面,提供了一种通信装置,该装置包括:处理单元,用于生成第一上行信息和第二上行信息,所述第一上行信息包括下行HARQ反馈信息、上行调度请求或上行数据,所述第二上行信息包括侧行HARQ反馈信息或侧行调度请求;所述处理单元还用于响应于所述第一上行信息对应的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,确定所述第一上行信息对应的数据的业务优先级和所述第二上行信 息对应的数据的业务优先级;收发单元,用于发送所述第一上行信息和所述第二上行信息中对应数据的业务优先级较高的信息。
结合第七方面,在一种可能的实现方式中,在所述第一上行信息为所述下行HARQ反馈信息且所述第二上行信息为所述侧行调度请求的情况下,所述收发单元还用于将所述侧行调度请求复用至承载所述下行HARQ反馈信息的上行信道上,并发送所述上行信道。
结合第七方面,在一种可能的实现方式中,其特征在于,HARQ反馈信息对应的数据为所述HARQ反馈信息所反馈的数据信道上承载的数据,调度请求对应的数据为所述调度请求所请求的数据信道上承载的数据。
需要说明的是,上述第六或第七方面描述的装置可以是终端整机,或具有上述终端设备功能的部件,或芯片系统。当装置是终端设备整机时收发单元可以是发送器和接收器,或整合的收发器,可以包括天线和射频电路等,处理单元可以是处理器,例如基带芯片等。当通信装置是具有上述终端设备功能的部件时,收发单元可以是射频单元,处理单元可以是一个或多个处理器。当通信装置是芯片系统时,收发单元可以是芯片系统的输入输出接口或通信接口,处理单元可以是芯片系统的处理器,例如:中央处理单元(central processing unit,CPU)。
上述的芯片系统可以是片上系统(system on chip,SOC),也可以是基带芯片等,其中基带芯片可以包括处理器、信道编码器、数字信号处理器、调制解调器和接口模块等。需要说明的是,处理器包括一个或多个处理器,其中,处理器可以是一个通用中央处理器(CPU),微处理器,特定应用集成电路(Application Specific Intergrated Circuit,ASIC)。
第八方面,提供了一种通信装置,该通信装置可以为上述方法实施例中的终端。该通信装置包括存储器、通信接口以及处理器,其中,该存储器用于存储计算机程序或指令,处理器与存储器、通信接口耦合,当处理器执行所述计算机程序或指令时,使通信装置执行上述方面提供的方法中由终端所执行的方法。
第九方面,提供了一种计算机程序产品,所述计算机程序产品包括:计算机程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行上述各方面中由终端执行的方法。
第十方面,本申请提供了一种芯片系统,该芯片系统包括处理器,用于实现上述各方面的方法中终端的功能,例如,例如接收或处理上述方法中所涉及的数据和/或信息。在一种可能的设计中,所述芯片系统还包括存储器,所述存储器,用于保存程序指令和/或数据。该芯片系统,可以由芯片构成,也可以包括芯片和其他分立器件。
第十一方面,本申请提供了一种计算机可读存储介质,该计算机可读存储介质存储有计算机程序,当该计算机程序被运行时,实现上述各方面中由终端执行的方法。
第十二方面,本申请提供了一种通信系统,该计算机可读存储介质存储有计算机程序,当该计算机程序被运行时,实现上述各方面中由网络设备执行的方法。
图1是车联网网络的示意图;
图2是本申请实施例的通信系统的示意图;
图3是本申请提供的通信装置的结构示意图;
图4是本申请提供的又一通信装置的结构示意图;
图5是本申请提供的又一通信装置的结构示意;
图6是本申请提供的又一通信装置的结构示意;
图7是本申请实施例提供的信息发送和接收方法的流程示意图;
图8是本申请实施例提供的又一信息发送和接收方法的流程示意图;
图9是本申请实施例中上行控制信息序列的循环移位值的分布示意图。
下面将结合附图对本发明作进一步地详细描述。
在介绍本申请实施例之前,首先介绍本申请实施例中涉及到的名词:
1)侧行链路(Sidelink):针对终端和终端之间直接通信定义的,也即终端和终端之间不通过基站转发而直接通信的链路。
2)Uu链路:针对终端和网络设备之间的蜂窝通信定义的,也即终端和网络设备之间通过蜂窝网通信的链路。
需要说明的是,在本申请实施例中,“示例的”一词用于表示作例子、例证或说明。本申请中被描述为“示例”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言,使用示例的一词旨在以具体方式呈现概念。
本申请实施例的技术方案可以应用于各种通信系统,例如:第四代(4th Generation,4G),4G系统包括长期演进(Long Term Evolution,LTE)系统及LTE的各个演进版本;全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信系统,未来的第五代(5th Generation,5G)系统,如新空口(New Radio,NR),及未来的通信系统,如6G系统等。另外,本申请实施例提供的技术方案可以应用于蜂窝链路,也可以应用于设备间的链路,例如设备到设备(device to device,D2D)链路。D2D链路或V2X链路,也可以称为侧行链路(sidelink,SL),其中侧行链路也可以称为边链路或副链路等。其中,设备间的链路也可以是基站到基站之间的链路,还可以是中继节点到中继节点之间的链路等,本申请实施例对此不做限定。对于终端设备和终端设备之间的链路,有3GPP的版本(Rel)-12/13定义的D2D链路,也有3GPP为车联网定义的车到车、车到手机、或车到任何实体的V2X链路,包括Rel-14/15。还包括目前3GPP正在研究的Rel-16及后续版本的基于NR系统的V2X链路等。
本申请实施例描述的网络架构以及业务场景(或应用场景)是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
在3GPP中提出了基于蜂窝网络的车联网技术,通过V2X通信系统将汽车互联。如图1所示,V2X通信系统包括车到车(Vehicle to Vehicle,V2V)、车到人(Vehicle to Pedestrian,V2P)(包括行人、骑自行车的人、司机、或乘客)、车到基础设施(Vehicle to Infrastructure,V2I)(例如,车辆与路边装置(road side unit,RSU)的通信)和车 到网络(Vehicle to Network,V2N)(例如,车辆与基站/网络的通信)的智能交通业务。除V2N车辆和网络通信使用上行链路和下行链路,其余V2V/V2I/V2P数据通信均使用侧行链路进行通信。路边装置包括两种类型:终端类型的RSU,由于布在路边,该终端类型的RSU处于非移动状态,不需要考虑移动性。基站类型的RSU,可以给与之通信的车辆提供定时同步及资源调度。
D2D、V2X或物联网等通信系统中可以包括至少一个网络设备和一个或多个终端。其中,终端,是一种具有无线收发功能的设备,可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。终端又称之为用户设备(user equipment,UE),移动台(mobile station,MS)、移动终端(mobile terminal,MT)以及终端设备等,是一种向用户提供语音和/或数据连通性的设备。例如,终端包括具有无线连接功能的手持式设备、车载设备等。目前,终端可以是:手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备(例如智能手表、智能手环、计步器等),车载设备(例如,汽车、自行车、电动车、飞机、船舶、火车、高铁等)、虚拟现实(virtual reality,VR)设备、增强现实(augmented reality,AR)设备、工业控制(industrial control)中的无线终端、智能家居设备(例如,冰箱、电视、空调、电表等)、智能机器人、车间设备、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端,或智慧家庭(smart home)中的无线终端、飞行设备(例如,智能机器人、热气球、无人机、飞机)等。本申请一种可能的应用的场景中终端设备为经常工作在地面的终端设备,例如车载设备。本申请的终端设备还可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元,车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请的方法。需要理解的是,通信整机中用于实现通信连接功能的部件和/芯片(或芯片系统)也属于终端的范围。
另外,网络设备可以为长期演进(long time evolution,LTE)中的演进式基站(evolved Node Base Station,eNB)。其中,eNB通过S1接口接入4G核心网络(例如,分组核心网(Evolved Packet Core,EPC))。随着移动通信技术的不断发展,4G网络逐渐向5G网络演进。在演进过程中,LTE系统可演进为eLTE系统。eLTE系统中的eNB可接入到EPC网,也可接入到下一代核心(The Next-Generation Core,NG-Core)网。网络设备也可以为NR中的NR系统中的下一代节点B(The Next Generation Node B,gNB)。其中gNB通过N2接口接入NG-Core网。其中,终端之间通过直连通信的无线接口可以为接口1,例如接口1可以称为PC5接口,采用车联网专用频段(如5.9GHz),而终端与网络设备之间的无线接口可以称为接口2(例如,Uu接口),采用蜂窝网频段(如1.8GHz)。上述接口1、接口2的名称仅是个示例,本申请实施例对接口1、接口2的名称不作限定。
下面以V2X为例,结合图2描述本申请实施例可以应用的一种通信系统。该通信系统包括网络设备101,可以与网络设备101通信的一个或多个第一终端102和一个 或多个第二终端103,第一终端102和第二终端103之间可以通过侧行链路直接通信。无线通信设备101可以提供无线网络的基础设备,例如可以为蜂窝网络基站等,为终端之间的通信提供支持,例如为无线通信设备101和第一终端102之间的通信提供支持。当侧行通信为基站调度的模式且第一终端102作为侧行链路的发送端的时候,第一终端102首先向网络设备101发送侧行调度请求(sidelink scheduling request,SL SR),用于请求网络设备为第一终端102指示侧行链路资源。第一终端102在网络设备101指示的资源上向第二终端103发送侧行控制信息和V2X业务数据。类似Uu口的HARQ反馈机制,第二终端103在接收第一终端102发送的数据之后需要向第一终端102反馈肯定应答(acknowledgement,ACK)或否定应答(negative acknowledgement,NACK),第一终端102再将接收到的侧行HARQ反馈信息(SL HARQ)发送给基站,或者第二终端103同时将侧行HARQ反馈信息发送给第一终端102和网络设备101。另外在一些场景下,第一终端102和/或第二终端103需要向网络设备101上报侧行链路的信道状态信息(channel state information,CSI),下文简称为侧行信道状态信息(SLCSI)。例如,第一终端102或第二终端103可能需要周期性地向网络设备101上报SLCSI,或者第一终端102或第二终端103可基于事件触发向网络设备101上报非周期的CSI。
上面描述的SL HARQ,SL SR和SLCSI这些侧行链路相关的信息都是需要占用上行信道资源向网络设备发送的。具体的,SL HARQ,SL SR和SLCSI一般承载在物理上行控制信道(physical uplink control channel,PUCCH)上或者物理上行共享信道(Physical Uplink Shared Channel,PUSCH)上。当终端之间的通信传输处于前述的第一种模式下时,用于发送SL HARQ、SL SR或SLCSI的上行资源是由网络设备半静态配置或动态调度的。
具体的,用于终端向网络设备发送SL HARQ的上行资源可以是由基站通过高层信令配置的,也可以是通过高层信令配置一个或者多个资源集合,进一步通过动态信令指示该一个或多个资源集合中的资源,其中高层信令例如可以是RRC信令,MAC CE,动态信令例如可以是下行控制信息(downlink control information,DCI);对于SL SR来说,网络设备会半静态的配置一些SR的发送机会和可用传输资源给终端,一般标准协议中将每个SR的发送机会称之为SR occasion,SR occasion的周期和时频资源可以由网络设备通过高层信令配置,例如可以通过RRC信令中的相应的信元(
information element,IE)来配置,具体的可以是相应的IE可以是SR configuration和/或对应的SR resource configuration,终端可以在多个SR configurations中的全部或部分SR configurations配置的SR occasion上发送SL SR;对于SLCSI来说,终端向基站上报SLCSI所使用的上行资源可以是网络设备通过高层信令半静态配置的,高层信令可以是RRC信令,或者MAC CE,也可以是网络设备通过动态信令指示时频资源用于SL CSI的上报,动态信令例如可以是DCI。这些侧行链路相关的信息由于占用上行信道,在很多情况下多个承载侧行链路相关信息的上行信道之间会出现冲突,或者承载侧行链路相关信息的上行信道会与Uu链路的上行信道出现冲突。这里的冲突指的是信道在时域上至少有一个时间单位(例如子帧,时隙,符号等)重叠(overlap)。
需要说明的是,即便是在模式一,即基于网络设备调度的模式下,仍然会有很多情况下会出现上行信道之间的冲突,也就是说网络设备配置或指示给终端的用于发送 侧行链路相关信息的上行资源和用于发送上行链路相关信息的上行资源之间会出现重叠。一些情况下,用于发送SL HARQ,SL SR和SLCSI的上行资源之间也可能出现重叠。在TDD系统中,上下行时隙是按照半静态配比进行配置的,上述的侧行链路相关信息只能在特定的时隙上反馈,比如上行时隙,在同一上行时隙可能会有多个侧行HARQ信息需要上报给网络设备,在同一上行时隙终端设备也可能需要向网络设备发送侧行调度请求侧行和/或上行调度请求以及侧行和或上行的信道状态信息。同时,不同类型的信息都是各自独立生成,需要在不同的上行信道发送,根据上文的描述可以知道上行信道的资源配置可以是周期配置的,也可以是动态调度的。网络设备分配给终端用于发送上述不同信息的多个上行信道可能出现重叠。
由于在5G系统中,上行链路的发送会受到UE能力、发送功率以及信道环境的限制,因此终端在同一时刻不能同时发送多个信道或参考信号,比如终端同一时刻不能同时发送多个PUCCH,无论该多个PUCCH是在同一载波还是在不同载波。示例性的,用于承载SL HARQ的PUCCH1和用于承载SL SR的PUCCH2可能出现重叠,也就是说两个信道之间出现了冲突,这时需要一种方法使得终端可以合理地处理信息发送,保证通信质量和通信效率。
本申请提供一种信息发送和接收的方法,可以由终端执行,终端可以是终端设备整机或终端设备中实现通信功能的部件,或终端也可以是通信芯片,或物理上分布式的通信功能体,同样的本申请中描述的网络设备也可以是整机或实现通信功能的部件,或物理上分布式的通信功能体,或通信芯片等。下文以终端和网络设备为例,对本申请实施例提供的方法进行更加详细地描述。
图3示出了本申请实施例提供的一种通信装置300的示意性框图,通信装置300包括收发单元310和处理单元320,其中收发单元310也可以是分立的接收单元和发送单元,各单元之间通信连接。通信装置300可以是设备整机,或具有上述终端设备功能的部件,或芯片系统。当通信装置300是终端设备整机时收发单元310可以是发送器和接收器,或整合的收发器,可以包括天线和射频电路等,处理单元320可以是处理器,例如基带芯片等。当通信装置300是具有上述终端设备功能的部件时,收发单元310可以是射频单元,处理单元320可以是一个或多个处理器。当通信装置300是芯片系统时,收发单元310可以是芯片系统的输入输出接口或通信接口,处理单元320可以是芯片系统的处理器,例如:中央处理单元(central processing unit,CPU),具体的此时终端示意性结构可以是如图5所示通信装置500,收发单元310具体为通信接口510,处理单元320具体为处理器520,通信装置500还可以包括存储器530,存储器530用于保存实现本申请实施例提供的方法中实现终端的功能必要的程序指令和数据,上述通信接口510、处理器520和存储器530之间通信连接。上述的芯片系统可以是片上系统(system on chip,SOC),也可以是基带芯片等,其中基带芯片可以包括处理器、信道编码器、数字信号处理器、调制解调器和接口模块等。需要说明的是,处理器520包括一个或多个处理器,其中,处理器可以是一个通用中央处理器(CPU),微处理器,特定应用集成电路(Application Specific Intergrated Circuit,ASIC)。通信装置300或通信装置500能够执行本申请实施例提供的方法中由终端执行的各个步骤。
图4示出了本申请实施例提供的一种通信装置400的一种示意性框图,通信装置400包括收发单元410和处理单元420,其中收发单元410也可以是分立的接收单元和发送单元,各单元之间通信连接。通信装置400可以是设备整机,或具有上述网络设备功能的部件,或芯片系统。当通信装置400是网络设备整机时收发单元410可以是发送器和接收器,或整合的收发器,可以包括天线和射频电路等,处理单元420可以是处理器,例如基带芯片等。当通信装置400是具有上述网络设备功能的部件时,收发单元410可以是射频单元,处理单元420可以是一个或多个处理器。当终端400是芯片系统时,收发单元410可以是芯片系统的输入输出接口或通信接口,处理单元420可以是芯片系统的处理器,例如:中央处理单元(central processing unit,CPU),具体的此时网络设备示意性结构可以是如图6所示通信装置600,收发单元410具体为通信接口610,处理单元420具体为处理器620,通信装置600还可以包括存储器630,存储器630用于保存实现本申请实施例提供的方法中实现网络设备的功能必要的程序指令和数据,通信接口610、处理器620和存储器630之间通信连接。上述的芯片系统可以是片上系统(system on chip,SOC),也可以是基带芯片等,其中基带芯片可以包括处理器、信道编码器、数字信号处理器、调制解调器和接口模块等。需要说明的是,处理器620包括一个或多个处理器,其中,处理器可以是一个通用中央处理器(CPU),微处理器,特定应用集成电路(Application Specific Intergrated Circuit,ASIC)。通信装置400或通信装置600能够执行本申请实施例提供的方法中由网络设备执行的各个步骤。
如图7所示,图7为本申请实施例提供的信息发送和接收方法100的交互流程,该方法包括:
步骤110、生成第一上行信息和第二上行信息,所述第一上行信息包括下行HARQ反馈信息、上行调度请求或上行信道状态信息,所述第二上行信息包括侧行HARQ反馈信息或侧行调度请求;
需要说明的是,下行HARQ反馈信息指的是针对下行数据的HARQ反馈信息,属于终端向网络设备发送的上行信息的一部分,可以简称为DLHARQ或者Uu HARQ。另外,本申请不限定终端生成第一上行信息和第二上行信息的先后顺序,终端可以是同一时间生成两类上行信息,或先后生成两类上行信息。这里的侧行HARQ反馈信息为终端向网络设备上报的侧行链路的HARQ反馈信息,可以简称为SL HARQ。
下行HARQ反馈信息用于向网络设备指示下行数据是否发送成功,例如终端没有接收到下行数据或者下行数据的CRC校验并没有通过,终端会反馈NACK。网络设备在接收到终端反馈的NACK之后会对下行数据进行重传,对应地若终端成功接收到下行数据,则会反馈ACK,网络设备在接收到终端反馈的NACK之后就知道下行数据发送成功。侧行HARQ机制类似于Uu链路的HARQ机制,首先需要接收侧行数据的终端向发送侧行数据的终端反馈ACK/NACK,另一方面接收终端或发送终端也需要把接收终端反馈的ACK/NACK上报给网络设备。在基于调度的模式下,终端在需要发送上行数据和/或侧行数据的时候,都需要先发送调度请求SR。上行调度请求UL SR用于请求上行数据的资源,侧行调度请求SL SR用于请求侧行数据的资源。上行信道状态信息UL CSI用于上报下行链路的信道状态信息,以便于网络设备调整下行传输 的资源大小或者调度合适的上行资源给终端设备,上行信道状态信息可以包括但是不限于信道质量信息CQI,秩指示信息RI,预编码矩阵指示信息PMI,层指示信息LI以及参考信息号接收功率RSRP等信息。侧行信道状态信息可以由终端上报给网络设备,以便于网络设备获悉侧行链路信道状态,给终端设备调度合适的资源,侧行信道状态信息可以包括但是不限于信道质量信息CQI,秩指示信息RI,预编码矩阵指示信息PMI,层指示信息LI以及参考信息号接收功率RSRP等信息。SL CSI可以是周期性的CSI和/或非周期的CSI,周期性的CSI可以是网络设备通过高层信令半静态配置的,非周期的CSI可以是网络设备或者终端设备通过动态信令触发的。
上述步骤110可以由通信装置300或通信装置500实现,具体的可以由通信装置300中的处理单元320或通信装置500中的处理器520实现。
步骤120、响应于所述第一上行信息对应的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,发送所述第一上行信息和所述第二上行信息中优先级较高的信息;相应地,网络设备接收所述第一上行信息或所述第二上行信息。
其中,优先级顺序包括{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>上行信道状态信息}。需要说明的是,该优先级顺序可以是协议预定义的,或者可以是网络设备配置的。终端设备在与网络设备之间只能通过上行链路进行通信,前文描述了终端设备在侧行链路上与其他UE通信时,既可以工作在模式一下,也可以工作在模式二下,其中模式一即为基于网络设备调度的通信模式,模式二为基于终端设备自行选择通信资源的通信模式,模式二下UE可以自己选择资源进行传输。当第一上行信息对应的上行信道与第二上行信息对应的上行信道重叠时,如果只发送第二上行信息,则终端设备无法在当前与基站进行通信;如果只发第一上行信息,则终端设备还可以在于基站保持通信的同时,采用模式二与其他终端设备进行通信。所以按照本申请实施例提供的方法当上行和侧行相同种类的信息冲突时优先发送上行链路相关的信息,可以最大程度保证通信系统的运转,保证系统性能。另外HARQ信息用于对已发送数据的确认,如果在未收到相应确认信息之前,终端设备并不会使用该HARQ进程进行数据的发送,影响时延,也就是说HARQ信息对时延要求高,对于SR来说,终端一般被配置多个SR发送机会,对时延要求较HARQ反馈信息低,相反CSI报告只是信道状态信息的上报,对时延要求较低,所以按照本申请实施例提供的方法HARQ反馈信息的优先级高于调度请求的优先级,同时调度请求的优先级又高于信道状态信息的优先级,按照本申请实施例提供的优先级发送,可以保证终端设备将当前最重要的信息上报给网络设备,优先保证时延要求较高的信息的传输,能够在上行信息资源冲突的情况下降低数据传输的时延。
换句话说,终端当前优先发送第一上行信息和第二上行信息中优先级较高的信息,丢弃(drop)第一上行信息和第二上行信息中优先级较低的信息,或者说不发送第一上行信息和第二上行信息中优先级较低的信息。可选的,终端也可以存储该优先级较低的信息,在后续的上行信道上发送,这适用于该优先级较低的信息对时延的要求不高的情况,以SR举例,终端可以在下一个SR occasion发送该SR。
上述步骤120中的发送步骤可以由通信装置300或通信装置500执行,具体的可以由通信装置300中的收发单元310或通信装置500中的通信接口510执行,或者可 以由通信装置300中的处理单元320控制收发单元310执行,或由通信装置500中的处理器520控制通信接口510执行。
上述步骤120的接收步骤可以由通信装置400或通信装置600执行,具体的可以由通信装置400中的收发单元410或通信装置600中的通信接口610执行,或者可以由通信装置400中的处理单元420控制收发单元410执行,或由通信装置600中的处理器620控制通信接口610执行。
第一上行信息对应的上行信道指的是网络设备配置或指示的用于发送第一上行信息的上行资源,例如,对于HARQ反馈信息来说,对应的上行信道可以是网络设备配置或指示的用于发送HARQ反馈信息的上行控制信道PUCCH或者上行共享信道PUSCH,对于调度请求SR来说对应的上行信道可以是网络设备配置或指示的PUCCH,对于信道状态信息来说对应的上行信道可以是网络设备配置或指示的上行控制信道PUCCH或者上行共享信道PUSCH。
当第一上行信息与第二上行信息对应的上行信道有重叠的时候,由于终端上行发送能力的限制,上行传输可能出现错误或者性能下降,导致第一上行信息和第二上行信息都无法正确发送。本申请实施例提供的信息发送和接收方法,提出了一种上行信息冲突情况下的解决方法,终端根据优先级顺序优先发送优先级较高的信息,并定义了上行传输过程中可能出现冲突的上行信息与侧行信息之间的优先级顺序,充分考虑了不同上行信息和侧行信息的重要性和对时延的容忍度等,降低通信错误的概率同时最大程度地保障Uu链路和侧行链路共存的场景下上行传输的可靠性。
可选的,在一些实施例中,侧行HARQ反馈信息可以包括针对于动态调度授权(dynamic grant,DG)的数据的侧行HARQ反馈信息(下文简称为DG SL HARQ),和针对预配置调度授权(configured grant,CG)的数据的侧行HARQ反馈信息(下文简称为CG SL HARQ);在这种情况下,优先级顺序可以为{DG SL HARQ>DL HARQ>CG SL HARQ>SL SR>UL SR}。
可选的,在一些实施例中,下行HARQ反馈信息可以包括针对于动态调度授权DG的数据的下行HARQ反馈信息(下文简称为DG DL HARQ),针对半持续(Semi-Persistent,SPS)调度的数据的下行HARQ反馈信息(下文简称为SPS DL HARQ),在这种情况下优先级顺序可以为{DG DL HARQ>DG SL HARQ>SPS DL HARQ>CG SL HARQ>SL SR>UL SR}。
可选的,在一些实施例中,第二上行信息还包括侧行信道状态信息。在D2D、V2X或其他物联网IOT等包含侧行链路通信的应用场景中,终端还可以向网络设备上报侧行链路的信道状态信息(后文简称SL CSI)。同样的SL CSI也可以承载在PUCCH资源上。在这种情况下,上文描述的优先级顺序还包括{上行信道状态信息>侧行信道状态信息}。或者在这种情况下优先级顺序可以为{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>信道状态信息},或{DG SL HARQ>DL HARQ>CG SL HARQ>SL SR>UL SR>CSI},或者{DG DL HARQ>DG SL HARQ>SPS DL HARQ>CG SL HARQ>SL SR>UL SR>CSI},同时不论上行或侧行,信道状态信息之间的优先级由优先级值大小确定,其中优先级值越小表示优先级越高。可选的,本申请实施例还提供一种信道状态信息的优先级值的计算方式,其中,上行信道状态信 息的优先级值的计算公式为:
Pri
iCSI(y,k,c,s)=2·N
cells·M
s·y+N
cells·M
s·k+M
s·c+s+P
ch,UL CSI; (1)
所述侧行信道状态信息的优先级值的计算公式为:
Pri
iCSI(y,k,c,s)=2·N
cells·M
s·y+N
cells·M
s·k+M
s·c+s+P
ch,SL CSI; (2)
公式中的N
cells表示终端可以接入的最大的服务小区个数,服务小区既包含主服务小区也包含辅服务小区,可选的,参数N
cells是由网络设备配置的或者终端设备上报的;M
s表示最大的CSI报告配置数量,即终端能够被配置的上报CSI的种类的最大值;参数y用于表征承载CSI的信道,例如当承载CSI的信道为PUCCH时y=1,当承载CSI的信道为PUSCH时y=0;参数k用于表征CSI中是否包含物理层的RSRP(也称为L1-RSRP),例如当CSI中包含L1-RSRP时k=0,当CSI中包含L1-RSRP时k=1;参数c为服务小区的索引,参数s为CSI报告的标识,参数P
ch,UL CSI为针对上行信道状态-信息优先级值的调整值,参数P
ch,SL CSI为针对侧行信道状态信息优先级值的调整值。上述参数可以是网络设备配置的,或者部分参数为预配置的,本申请对此不作限定。
可选的,上行信道状态信息和侧行信道状态信息的优先级值的计算公式可以为同一个,即
Pri
iCSI(y,k,c,s)=2·N
cells·M
s·y+N
cells·M
s·k+M
s·c+s+P
ch,CSI; (3)
此时网络设备可以针对上行和侧行分别配置一组参数的值,或者上行和侧行分别对应一组预定义的参数,或者网络设备针对上行和侧行配置不同的参数P
ch,CSI的值,即参数P
ch,CSI包括参数P
ch,CSI可以包括两个值,例如参数P
ch,CSI为P
ch,UL CSI或P
ch,SL CSI,P
ch,UL CSI为针对上行信道状态-信息优先级值的调整值,P
ch,SL CSI为针对侧行信道状态信息优先级值的调整值,终端可以根据信道状态信息对应的链路确定参数P
ch,CSI的值。
可选的,在一些实施例中,参数P
ch,UL CSI和参数P
ch,SL CSI可以是预定义或预配置的固定参数,例如P
ch,UL CSI=0且P
ch,SL CSI=1。或者可选的,参数P
ch,UL CSI和参数P
ch,SL CSI也可以是通过高层信令配置的,例如高层信令可以是RRC信令,MIB消息或SIB消息,MAC层控制信息等,或者两个参数是通过物理层信令动态指示的,例如物理层信令可以是下行控制信息(downlink control information,DCI),侧行控制信息(sidelink control information,SCI),或上行控制信息(uplink control information,UCI)等。具体的,网络设备或终端可以根据具体的链路(UL/SL)和QoS的要求,以及CSI中的包含的内容(RSRP,CQI/PMI)等进行确认来配置上述的两个调整值。由于侧链路的CSI一般为非周期的CSI,可能需要在PUCCH资源上传输,通过两个调整参数不同的取值可以使得网络设备或终端可以根据信息的重要性和对时延的要求,对侧行或上行CSI的优先级值进行补偿,避免某些实际重要性较高或时延要求更高的SL CSI无法上报。其中,参数P
ch,UL CSI和参数P
ch,SL CSI均为整数,且P
ch,SL CSI∈[a,b],取值a为和取值b可以为正数或负数,例如[-1,1],[-2,-1],[1,2]。
可选的,网络设备还可以针对周期性CSI和非周期CSI分别配置不同的P
ch,CSI值,例如网络设备可以给周期性CSI配置P
ch,SL CSI=0,给非周期的CSI配置P
ch,UL CSI=2,当网络设备或终端设备触发终端设备在侧链路上的一次非周期信道测量并调度上行控制信道PUCCH资源,且在一个时隙中发送该SL CSI的PUCCH与另外一个承载上行周期CSI的PUCCH有冲突时,通过配置不同的P
ch,CSI值,可以提高侧行CSI上报的可 靠性。
因此,在第一上行信息包括上行信道状态信息且第二上行信息包括侧行信道状态信息的情况下,上述方法还包括,计算上行信道状态信息的优先级值以及侧行信道状态信息的优先级值,发送上行信道状态信息和侧行信道状态信息中优先级值较低的信息。
根据本申请实施例提供的方法,终端在上行信道出现冲突的情况下,优先发送优先级较高的信息,并且具体的当UL CSI与SL CSI冲突的情况下,终端根据两者分别对应的优先级值,发送两者中优先级值较低(即优先级较高)的信息。终端可以采用量化的方式比较UL CSI与SL CSI的优先级,简化了冲突场景下的上行信息发送流程,并且通过不同的调整参数可以实现对优先级的调整或补偿,最大程度上保证上行通信的可靠性。
下面结合图8描述本申请实施例提供的信息发送和接收方法200的交互流程,该方法包括:
步骤210、生成第一上行信息和第二上行信息,其中第一上行信息包括下行HARQ反馈信息、上行调度请求或上行数据,第二上行信息包括侧行HARQ反馈信息或侧行调度请求。
上述步骤210可以由通信装置300或通信装置500实现,具体的可以由通信装置300中的处理单元320或通信装置500中的处理器520实现。
和上文的描述相同,本申请不限定终端生成第一上行信息和第二上行信息的先后关系。下行HARQ反馈信息和上行调度请求一般承载在上行控制信道上(例如PUCCH),上行数据一般承载在上行数据信道上(例如物理上行共享信道(physical uplink shared channel,PUSCH))。侧行HARQ反馈信息和侧行调度请求这些侧行链路相关的上行信息,可以承载在上行控制信道上。在基于网络设备调度的模式下,网络设备会配置或指示给终端可用于发送上述不同类型信息的资源,一般情况下用于发送DLHARQ的PUCCH资源、用于发送ULSR的PUCCH资源、用于发送SLHARQ的PUCCH资源和用于发送SLHARQ的PUCCH资源是由网络设备分别独立进行配置或指示的。
步骤220、响应于所述第一上行信息对应的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,确定所述第一上行信息对应的数据的业务优先级和所述第二上行信息对应的数据的业务优先级。
在很多情况下至少一种第一上行信息对应的资源和至少一种第二上行信息对应的资源会出现冲突,换句话说至少一种第一上行信息对应的资源和至少一种第二上行信息对应的资源之间有重叠。本申请实施例中描述的上行信息对应的资源,指的是网络设备半静态配置或动态指示的可用于发送该上行信息的资源。
需要说明的是,HARQ反馈信息对应的数据为所述HARQ反馈信息所反馈的物理共享信道上承载的数据,调度请求对应的数据为所述调度请求所请求的数据信道上承载的数据,上行数据对应的数据即为其本身。
业务优先级可以为产生该数据的逻辑信道的优先级,或者业务优先级可以为该业务数据的QoS要求对应的优先级。
上述步骤220可以由通信装置300或通信装置500实现,具体的可以由通信装置 300中的处理单元320或通信装置500中的处理器520实现。
步骤230、发送所述第一上行信息和所述第二上行信息中对应数据的业务优先级较高的信息。对应的,网络设备接收第一上行信息或第二上行信息。
换句话说,终端当前优先发送第一上行信息和第二上行信息中对应数据的业务优先级较高的信息,丢弃(drop)第一上行信息和第二上行信息中对应数据的业务优先级较低的信息,或者说不发送第一上行信息和第二上行信息中对应数据的业务优先级较低的信息。可选的,终端也可以存储该优先级较低的信息,在后续的上行信道上发送,这适用于该优先级较低的信息对时延的要求不高的情况,以SR举例,终端可以在下一个SR occasion发送该SR。
可选的,在一些实施例中,在所述第一上行信息为所述下行HARQ反馈信息且所述第二上行信息为所述侧行调度请求的情况下,终端复用侧行调度请求和下行HARQ反馈信息一起发送。具体的,所述发送所述第一上行信息和所述第二上行信息中对应数据的业务优先级较高的信息,包括将所述侧行调度请求复用至承载所述下行HARQ反馈信息的上行信道上,并发送所述上行信道。需要说明的是,在一些可能的情况下该复用的上行控制信道还可能与上行数据信道之间存在资源冲突,此时终端发送该上行控制信道时仍然仅承载下行HARQ反馈信息。可选的,在一些实施例中,在所述第一上行信息为所述侧行HARQ反馈信息且所述第二上行信息为所述上行调度请求的情况下,终端复用上行调度请求和侧行HARQ反馈信息一起发送。具体的,所述发送所述第一上行信息和所述第二上行信息中对应数据的业务优先级较高的信息,包括将所述上行调度请求复用至承载所述侧行HARQ反馈信息的上行信道上,并发送所述上行信道。
上述步骤230中的发送步骤可以由通信装置300或通信装置500执行,具体的可以由通信装置300中的收发单元310或通信装置500中的通信接口510执行,或者可以由通信装置300中的处理单元320控制收发单元310执行,或由通信装置500中的处理器520控制通信接口510执行。
上述步骤230的接收步骤可以由通信装置400或通信装置600执行,具体的可以由通信装置400中的收发单元410或通信装置600中的通信接口610执行,或者可以由通信装置400中的处理单元420控制收发单元410执行,或由通信装置600中的处理器620控制通信接口610执行。
根据本申请实施例提供的又一种信息发送和接收的方法,终端可以在上行信道出现冲突的时候,确定不同上行信息分别对应的数据的业务优先级,并根据对应数据的业务优先级确定优先发送的信息。在上行链路和侧行链路共存的场景下,能够避免上行传输之间的冲突,减少通信错误,并保证业务优先级高的数据相关的上行数据的传输,保证上行传输可靠性和传输效率。
需要说明的是,本申请实施例提供的信息发送和接收的方法100和200可以分别应用,也可以结合应用。例如,终端优先采用方法200,根据上行信息对应的数据的业务优先级确定优先发送的信息。当物理层无法获取上行信息对应的数据的业务优先级时,或当第一上行信息和第二上行信息包括信道状态信息时,终端采用方法100,根据优先级顺序和/或信道状态信息的优先级值确定优先发送的信息。
示例性的,表一给出了结合应用方法100和200的方式,终端可以按照表一中的规则确定优先发送的信息。
表一
上表中列举了上行信息冲突时处理规则的一些示例,需要说明的是表中的符号“/”表示或者,因此根据上表不同上行信息之间资源冲突的处理方式时可以有多种组合,也可以是仅采用上表中的部分规则,也就是说实际方案中可以包含表一的部分。另外从表一中可以看出,PUSCH还可以分为UL-SCH和UCI only两种类型,UL-SCH表示该PUSCH承载了数据,UCI only表示该PUSCH仅承载了上行控制信息(uplink control information,UCI)。
基于上文的描述,在一些实施例中当一个或多个SL SR与承载DLHARQ或者ULCSI的PUCCH冲突时,终端可以将SL SR复用至DLHARQ/ULCSI的资源上。本申请实施例还提供信息发送和接收方法300,根据该方法300终端可以确定并发送复用的上行信息,该方法包括:
步骤310、生成至少一个调度请求和下行HARQ反馈信息,其中,所述至少一个调度请求包括上行调度请求和/或侧行调度请求,所述下行HARQ反馈信息为肯定确认ACK或否定确认NCAK。
在一些实施例中,终端可能需要在同一时刻(例如同一子帧、同一时隙或同一符号)发送至少一个调度请求和下行HARQ反馈信息。本申请不限定生成至少一个SR和生成DLHARQ之间的先后关系。
上述步骤310可以由通信装置300或通信装置500实现,具体的可以由通信装置300中的处理单元320或通信装置500中的处理器520实现。
步骤320、响应于第一资源和第二资源全部或部分重叠,根据所述至少一个调度请求和下行HARQ反馈信息确定目标循环移位值,其中,所述第一资源为网络设备配置的用于发送调度请求的资源,所述第二资源为用于承载所述下行HARQ反馈信息的资源。具体的,第二资源可以为用于承载DLHARQ的PUCCH。
上述步骤320可以由通信装置300或通信装置500实现,具体的可以由通信装置 300中的处理单元320或通信装置500中的处理器520实现。
当HARQ采用PUCCH format 0,SL SR和UL SR采用PUCCH format 0/1时,可以利用上行控制信息序列的不同偏移值来指示PUCCH承载的不同信息,即至少一个调度请求与DLHARQ的组合与至少一个循环移位值之间有对应关系。该对应关系可以是预定义或预配置的,也可以是网络设备配置的。在现有协议规定中PUCCH format 0只能承载1-2比特信息。
具体的,根据所述至少一个调度请求和下行HARQ反馈信息确定目标循环移位值,包括根据所述至少一个调度请求与所述下行HARQ反馈信息的组合与至少一个循环移位值之间的对应关系确定目标循环移位值。
可选的,一些实施例中对应关系包括:DLHARQ对应第一循环移位值集合;DLHARQ和UL SR的组合,或DLHARQ和SL SR的组合对应第二循环移位值集合;DLHARQ和UL SR和SL SR的组合对应第三循环移位值集合。也就是说,DLACK/NACK对应第一循环移位值集合;DLACK/NACK和UL SR的组合,或DLACK/NACK和SL SR的组合对应第二循环移位值集合;DLACK/NACK和UL SR和SL SR的组合对应第三循环移位值集合。具体的,在DLHARQ为1比特的情况下,第一循环移位值集合为{0,6},第二循环移位值集合为{3,9},第三循环移位值集合为{4,10}或{5,11}。在DLHARQ为2比特的情况下,第一循环移位值集合为{0,3,6,9},第二循环移位值集合为{1,4,7,10},第三循环移位值集合为{2,5,8,11}。
为了更清楚的描述至少一个调度请求与DLHARQ的组合与至少一个循环移位值之间的对应关系,给出下表2和表3:
表2DLHARQ为1比特
M CS | PUCCH承载的信息 |
{0,6} | DLACK/NACK |
{3,9} | DL ACK/NACK+(UL SR或SL SR) |
{4,10}或{5,11} | DL ACK/NACK+UL SR+SL SR |
表3DLHARQ为2比特
M CS | PUCCH承载的信息 |
{0,3,6,9} | DLACK/NACK |
{1,4,7,10} | DL ACK/NACK+(UL SR或SL SR) |
{2,5,8,11} | DL ACK/NACK+UL SR+SL SR |
表2和表3给出了将DL HARQ与UL SR和/或SL SR复用时,上行控制信息序列的偏移值与该PUCCH承载的信息之间的对应关系。可选的,终端在生成至少一个调度请求和DLHARQ之后,根据表2或表3定义的对应关系确定上行控制信息序列的目标循环移位值。
表2和表3是基于NR R15中定义的DL HARQ与UL SR复用规则进一步的设计。表4和表5示出了NR中定义的DL HARQ与UL SR的组合与循环移位值之间的对应关系。
表4 DLHARQ为1比特
M CS | PUCCH承载的信息 |
{0,6} | DLACK/NACK |
{3,9} | DL ACK/NACK+UL SR |
表5 DLHARQ为2比特
M CS | PUCCH承载的信息 |
{0,3,6,9} | DLACK/NACK |
{1,4,7,10} | DL ACK/NACK+UL SR |
从上述表2-表5可以看出,方法300定义了额外的循环移位来指示DL HARQ和UL SR和SL SR的组合,另外在只有SL SR与DL HARQ冲突时,终端使用与UL SR和DL HARQ复用时相同的循环移位值来指示DL HARQ和SL SR的组合。结合图9可以看到,当DLHARQ为1比特时新增的循环移位值(以{4,10}为例)与现有的两对循环移位值一样间隔均匀的距离,这种情况下,两个循环移位值生成的序列之间的互相关性更小,接收端对ACK/NACK解码错误的概率更低。且新增的一对循环移位值(以{4,10}为例)与其他两对循环移位值之间的距离尽可能大,使得接收端对PUCCH承载的信息的三种组合的错检概率保持在一个较低的值。
可选的,在至少一个调度请求为侧行调度请求或上行调度请求的情况下,也就是说PUCCH上需承载的信息为DL ACK/NACK+(UL SR or SL SR)的情况下,方法300还包括:发送指示信息,所述指示信息用于指示所述上行控制信息序列承载的是上行调度请求还是侧行调度请求。具体的,该指示信息可以承载在缓冲区状态报告(buffer status report,BSR)或者MAC CE上。另外,发送指示信息可以在步骤340之后,也可以和步骤340同时,本申请对此不做限定。
步骤330、根据所述目标循环移位值M
CS和初始循环移位值M
0生成上行控制信息序列。
可选的,上行控制信息序列S(n)是在基序列r(n)的基础上通过循环移位值的调整来实现的:
S(n)=e
jαn·r(n);
α=M
CS+M
0;
上述步骤330可以由通信装置300或通信装置500实现,具体的可以由通信装置300中的处理单元320或通信装置500中的处理器520实现。
步骤340、在所述第二资源上发送所述上行控制信息序列。相应地,网络设备在第二资源上接收该上行控制信息序列。
终端根据上述步骤生成的上行控制信息序列可以指示DLACK/NACK、DL ACK/NACK+(UL SR or SL SR)或DL ACK/NACK+UL SR+SL SR这三种组合。该上行控制信息序列被映射到用于承载DLHARQ的PUCCH上,即第二资源上。终端发送该PUCCH,换句话说,终端在该PUCCH上发送上述生成的上行控制信息序列。相应地,网络设备接收该PUCCH。
上述步骤340中的发送步骤可以由通信装置300或通信装置500执行,具体的可以由通信装置300中的收发单元310或通信装置500中的通信接口510执行,或者可以由通信装置300中的处理单元320控制收发单元310执行,或由通信装置500中的处理器520控制通信接口510执行。
上述步骤340的接收步骤可以由通信装置400或通信装置600执行,具体的可以由通信装置400中的收发单元410或通信装置600中的通信接口610执行,或者可以由通信装置400中的处理单元420控制收发单元410执行,或由通信装置600中的处理器620控制通信接口610执行。
步骤350、网络设备根据上行控制信息序列中的目标循环移位值,确定该PUCCH上承载的信息。其中该PUCCH上承载的信息为DLHARQ,DLHARQ和UL SR的组合,DLHARQ和SL SR的组合,或DLHARQ和UL SR和SL SR的组合。
在一些实施例中,还包括网络设备接收指示信息,所述指示信息用于指示所述上行控制信息序列承载的是ULSR还是SL SR。具体的,该指示信息可以承载在缓冲区状态报告(buffer status report,BSR)或MAC CE上。
上述步骤350可以由通信装置400或通信装置600实现,具体的可以由通信装置400中的处理单元420实现,或由通信装置600中的处理器620实现。
根据方法300终端可以复用相同的PUCCH资源来承载DL HARQ和UL SR和SL SR的多种组合,高效利用上行控制信道资源,提高通信效率。进一步的,当DLHARQ为1比特时新增的循环移位值(以{4,10}为例)与现有的两对循环移位值一样间隔均匀的距离,这种情况下,两个循环移位值生成的序列之间的互相关性更小,接收端对ACK/NACK解码错误的概率更低。且新增的一对循环移位值(以{4,10}为例)与其他两对循环移位值之间的距离尽可能大,使得接收端对PUCCH承载的信息的三种组合的错检概率保持在一个较低的值。
在一些实施例中,当UL SR和SL SR采用PUCCH format 0/1,DLHARQ采用PUCCH format 2,3,4时,用于承载DLHARQ的PUCCH资源包括的时域资源大于一个符号,PUCCH format 2,3,4可以承载大于2比特上行信息,例如现有协议中PUCCH format 2,3可以包括大于2的任意个数的比特,PUCCH format 4可以包括大于2小于155个比特。本申请实施例还提供信息发送和接收方法400,根据该方法400终端可以根据与DL HARQ PUCCH重叠的UL SR configuration个数K和与DL HARQ PUCCH重叠的SL SR configuration个数S,确定需要复用的SR比特数。该方法包括:
步骤410、生成至少一个调度请求和下行HARQ反馈信息,其中,所述至少一个调度请求包括上行调度请求和侧行调度请求,所述下行HARQ反馈信息为肯定确认ACK或否定确认NCAK。
该步骤与步骤310一致,此处不再赘述。步骤310可以由通信装置300或通信装置500实现,具体的可以由通信装置300中的处理单元320或通信装置500中的处理器520实现。
步骤420、根据与第一资源有重叠的第二资源的个数和与所述第一资源有重叠的第三资源的个数,确定复用比特数;其中,所述第一资源为用于承载所述下行HARQ反馈信息的上行控制信道,所述第二资源为网络设备配置的用于发送所述上行调度请 求的资源,所述第三资源为所述网络设备配置的用于发送所述侧行调度请求的资源。需要理解的是,上述的一个第二资源可以是网络设备通过一个SR configuration和/或一个SR resource configuration IE配置的用于发送ULSR的资源。第三资源与第二资源类似,此处不再赘述。
可选的,在一些实施例中,第二资源可以是SR发送机会(SR occasion),也就是说一个第二资源为一个UL SR occasion,同样的一个第三资源为一个SL SR occasion。此时步骤420为:根据与第一资源有重叠的第二资源对应的SR configuration个数和与所述第一资源有重叠的第三资源对应的SR configuration个数,确定复用比特数。
终端根据与DL HARQ PUCCH重叠的UL SR configuration个数K和与DL HARQ PUCCH重叠的SL SR configuration个数S,确定需要复用的SR比特数。具体的,终端可以根据下列公式来计算需要复用的SR的比特数:
G
SR=ceil(log
2(K+1))+ceil(log
2(S+1)) (4)
其中ceil()表示向上取整。
或者终端分别根据与DL HARQ PUCCH重叠的UL SR configuration个数K和与DL HARQ PUCCH重叠的SL SR configuration个数S,确定需要复用的UL SR比特数G
UL SR和需要复用的SL SR比特数G
SL SR:
G
UL SR=ceil(log
2(K+1)) (5)
G
SL SR=ceil(log
2(S+1)) (6)
上述步骤420可以由通信装置300或通信装置500实现,具体的可以由通信装置300中的处理单元320或通信装置500中的处理器520实现。
步骤430、在所述第一资源上发送所述复用比特数个SR和所述下行HARQ反馈信息。或者在所述第一资源上发送G
UL SR个UL SR和G
SL SR个SL SR和所述下行HARQ反馈信息
具体的,终端计算出需要复用的SR比特数后,可以先生成需要发送的信息比特流,可选的终端可以将G
UL SR个UL SR比特放置于高比特位,将G
SL SR个SL SR比特放置于低比特位,然后在物理层对生成的比特流进行调制编码,最终将调制编码后的信息映射到所述第一资源上。
通过方法400终端可以综合考虑上行调度请求和侧行调度请求与承载HARQ反馈信息的上行信道之间的资源重叠,并在重叠时将调度请求和HARQ反馈信息进行复用,节省了上行信道资源,保证了通信系统的正常运转。
上述步骤430可以由通信装置300或通信装置500执行,具体的可以由通信装置300中的收发单元310或通信装置500中的通信接口510执行,或者可以由通信装置300中的处理单元320控制收发单元310执行,或由通信装置500中的处理器520控制通信接口510执行。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
另外,在本申请装置实施例中的各单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
可以理解的是,本申请的实施例中的处理器可以是中央处理单元(central processing unit,CPU),还可以是其他通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现场可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、晶体管逻辑器件,硬件部件或者其任意组合。通用处理器可以是微处理器,也可以是任何常规的处理器。
本申请的实施例中的方法可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序或指令。在计算机上加载和执行所述计算机程序或指令时,全部或部分地执行本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序或指令可以存储在计算机可读存储介质中,或者通过所述计算机可读存储介质进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是集成一个或多个可用介质的服务器等数据存储设备。所述可用介质可以是磁性介质,例如,软盘、硬盘、磁带;也可以是光介质,例如,CD-ROM,DVD;还可以是半导体介质,例如,固态硬盘(solid state disk,SSD),随机存取存储器(random access memory,RAM)、只读存储器(read-only memory,ROM)和寄存器等。
一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外,该ASIC可以位于网络设备或终端设备中。当然,处理器和存储介质也可以作为分立组件存在于发送设备或接收设备中。
在本申请的各个实施例中,如果没有特殊说明以及逻辑冲突,不同的实施例之间的术语和/或描述具有一致性、且可以相互引用,不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本申请中,“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。在本申请的文字描述中,字符“/”,一般表示前后关联对象是一种“或”的关系;在本申请的公式中,字符“/”,表示前后关联对象是一种“相除”的关系。
可以理解的是,在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区 分,并不用来限制本申请的实施例的范围。上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定。
Claims (20)
- 一种信息发送的方法,其特征在于,所述方法包括:生成第一上行信息和第二上行信息,所述第一上行信息包括下行HARQ反馈信息、上行调度请求或上行信道状态信息,所述第二上行信息包括侧行HARQ反馈信息或侧行调度请求;响应于所述第一上行信息对应的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,发送所述第一上行信息和所述第二上行信息中优先级较高的信息;其中,优先级顺序包括{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>上行信道状态信息}。
- 根据权利要求1所述的方法,其特征在于,所述第二上行信息还包括侧行信道状态信息,所述优先级顺序还包括{上行信道状态信息>侧行信道状态信息}。
- 根据权利要求1所述的方法,其特征在于,所述第二上行信息还包括侧行信道状态信息,所述优先级顺序包括{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>信道状态信息};在所述第一上行信息为所述上行信道状态信息且所述第二上行信息为所述侧行信道状态信息的情况下,所述发送所述第一上行信息和所述第二上行信息中优先级较高的信息,包括:发送所述上行信道状态信息和所述侧行信道状态信息中优先级值较低的信息,其中优先级值越低表示优先级越高。
- 根据权利要求3所述的方法,其特征在于,所述方法还包括:计算所述上行信道状态信息的优先级值以及所述侧行信道状态信息的优先级值;其中,所述上行信道状态信息的优先级值和所述侧行信道状态信息的优先值满足:Pri iCSI(y,k,c,s)=2·N cells·M s·y+N cells·M s·k+M s·c+s+P ch,CSI;参数P ch,CSI包括第一值和第二值,所述第一值为针对上行信道状态-信息优先级值的调整值,所述第二值为针对侧行信道状态信息优先级值的调整值;参数y用于表示承载CSI的信道;参数k用于表示CSI中是否包含物理层的RSRP;参数c为服务小区的索引;参数N cells表示终端可以接入的最大的服务小区个数,所述服务小区包含主服务小区和辅服务小区;参数s为CSI报告的标识;参数M s表示最大的CSI报告配置数量。
- 根据权利要求4所述的方法,其特征在于,参数P ch,CSI是预定义的,或通过高层信令配置的。
- 一种信息发送的方法,其特征在于,所述方法包括:生成第一上行信息和第二上行信息,所述第一上行信息包括下行HARQ反馈信息、上行调度请求或上行数据,所述第二上行信息包括侧行HARQ反馈信息或侧行调度请求;响应于所述第一上行信息对应的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,确定所述第一上行信息对应的数据的业务优先级和所述第二上行信息对应的数据的业务优先级;发送所述第一上行信息和所述第二上行信息中对应数据的业务优先级较高的信息;
- 根据权利要求6所述的方法,其特征在于,在所述第一上行信息为所述下行 HARQ反馈信息且所述第二上行信息为所述侧行调度请求的情况下,所述发送所述第一上行信息和所述第二上行信息中对应数据的业务优先级较高的信息,包括:将所述侧行调度请求复用至承载所述下行HARQ反馈信息的上行信道上,并发送所述上行信道。
- 根据权利要求6或7所述的方法,其特征在于,HARQ反馈信息对应的数据为所述HARQ反馈信息所反馈的数据信道上承载的数据,调度请求对应的数据为所述调度请求所请求的数据信道上承载的数据。
- 一种通信装置,其特征在于,包括:处理单元,用于生成第一上行信息和第二上行信息,所述第一上行信息包括下行HARQ反馈信息、上行调度请求或上行信道状态信息,所述第二上行信息包括侧行HARQ反馈信息或侧行调度请求;收发单元,用于响应于所述第一上行信息对应的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,发送所述第一上行信息和所述第二上行信息中优先级较高的信息;其中,优先级顺序包括{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>上行信道状态信息}。
- 根据权利要求9所述的装置,其特征在于,所述第二上行信息还包括侧行信道状态信息,所述优先级顺序还包括{上行信道状态信息>侧行信道状态信息}。
- 根据权利要求9所述的装置,其特征在于,所述第二上行信息还包括侧行信道状态信息,所述优先级顺序包括{下行HARQ反馈信息>侧行HARQ反馈信息>上行调度请求>侧行调度请求>信道状态信息};在所述第一上行信息为所述上行信道状态信息且所述第二上行信息为所述侧行信道状态信息的情况下,所述收发单元还用于发送所述上行信道状态信息和所述侧行信道状态信息中优先级值较低的信息,其中优先级值越低表示优先级越高。
- 根据权利要求11所述的装置,其特征在于,所述处理单元还用于计算所述上行信道状态信息的优先级值以及所述侧行信道状态信息的优先级值;其中,所述上行信道状态信息的优先级值和所述侧行信道状态信息的优先值满足:Pri iCSI(y,k,c,s)=2·N cells·M s·y+N cells·M s·k+M s·c+s+P ch,CSI;参数P ch,CSI包括第一值和第二值,所述第一值为针对上行信道状态-信息优先级值的调整值,所述第二值为针对侧行信道状态信息优先级值的调整值;参数y用于表示承载CSI的信道;参数k用于表示CSI中是否包含物理层的RSRP;参数c为服务小区的索引;参数N cells表示终端可以接入的最大的服务小区个数,所述服务小区包含主服务小区和辅服务小区;参数s为CSI报告的标识;参数M s表示最大的CSI报告配置数量。
- 根据权利要求12所述的方法,其特征在于,参数P ch,CSI是预定义的,或通过高层信令配置的。
- 一种通信装置,其特征在于,包括:处理单元,用于生成第一上行信息和第二上行信息,所述第一上行信息包括下行HARQ反馈信息、上行调度请求或上行数据,所述第二上行信息包括侧行HARQ反馈信息或侧行调度请求;所述处理单元还用于响应于所述第一上行信息对应的上行信道和所述第二上行信息对应的上行信道全部或部分重叠,确定所述第一上行信息对应的数据的业务优先级和所述第二上行信息对应的数据的业务优先级;收发单元,用于发送所述第一上行信息和所述第二上行信息中对应数据的业务优先级较高的信息;
- 根据权利要求14所述的装置,其特征在于,在所述第一上行信息为所述下行HARQ反馈信息且所述第二上行信息为所述侧行调度请求的情况下,所述收发单元还用于将所述侧行调度请求复用至承载所述下行HARQ反馈信息的上行信道上,并发送所述上行信道。
- 根据权利要求14或15所述的装置,其特征在于,HARQ反馈信息对应的数据为所述HARQ反馈信息所反馈的数据信道上承载的数据,调度请求对应的数据为所述调度请求所请求的数据信道上承载的数据。
- 一种通信装置,包括处理器,所述处理器与存储器相连,所述存储器用于存储计算机程序,所述处理器用于执行所述存储器中存储的计算机程序,以使得所述装置执行如权利要求1至5中任一项所述的方法。
- 一种通信装置,包括处理器,所述处理器与存储器相连,所述存储器用于存储计算机程序,所述处理器用于执行所述存储器中存储的计算机程序,以使得所述装置执行如权利要求6至8中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机程序,当所述计算机程序被运行时,实现如权利要求1至5中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机程序,当所述计算机程序被运行时,实现如权利要求6至8中任一项所述的方法。
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US11943168B2 (en) | 2019-05-02 | 2024-03-26 | Samsung Electronics Co., Ltd | Method and apparatus for transmission and reception of sidelink feedback in wireless communication system |
US20210320700A1 (en) * | 2020-04-08 | 2021-10-14 | Qualcomm Incorporated | Priority levels for channel state information reporting |
US11848733B2 (en) * | 2020-04-08 | 2023-12-19 | Qualcomm Incorporated | Priority levels for channel state information reporting |
CN113516440A (zh) * | 2021-09-13 | 2021-10-19 | 季华实验室 | 一种联合配送方法及装置 |
CN113516440B (zh) * | 2021-09-13 | 2022-01-18 | 季华实验室 | 一种联合配送方法及装置 |
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