WO2026001815A1 - 通信方法及装置、计算机可读存储介质、计算机程序产品 - Google Patents
通信方法及装置、计算机可读存储介质、计算机程序产品Info
- Publication number
- WO2026001815A1 WO2026001815A1 PCT/CN2025/102023 CN2025102023W WO2026001815A1 WO 2026001815 A1 WO2026001815 A1 WO 2026001815A1 CN 2025102023 W CN2025102023 W CN 2025102023W WO 2026001815 A1 WO2026001815 A1 WO 2026001815A1
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- Prior art keywords
- bwp
- frequency domain
- sensing
- communication
- domain resource
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
Definitions
- This disclosure relates to the field of communication technology, specifically to a communication method and apparatus, a computer-readable storage medium, and a computer program product.
- the technical problem solved by this disclosure is to provide an improved communication method that enables frequency division multiplexing between communication and sensing.
- this disclosure provides a communication method, comprising: receiving configuration information, wherein the configuration information is used to configure a first frequency domain resource and a second frequency domain resource, the first frequency domain resource being used for sensing and the second frequency domain resource being used for communication; transmitting a sensing signal using the first frequency domain resource; and performing communication using the second frequency domain resource.
- the frequency domain resources include a carrier
- the configuration information includes: first information for configuring at least one carrier; and indication information for indicating the association relationship between the at least one carrier and sensing.
- the at least one carrier is selected from at least one first carrier group and at least one second carrier group, wherein the carriers in the first carrier group are used for sensing and the carriers in the second carrier group are used for communication.
- the transmit power used to transmit sensing signals or perform communication using the carrier is not greater than the preset maximum transmit power corresponding to the carrier.
- the preset maximum transmit power corresponding to the carrier includes a first power and a second power, wherein the first power is associated with sensing and the second power is associated with communication.
- the preset maximum transmit power corresponding to the carrier is selected from a preset numerical range, and the upper and lower bounds of the preset numerical range are configured by higher-layer signaling.
- the sum of the transmission power of transmitting sensing signals using the first frequency domain resources and the transmission power of communicating using the second frequency domain resources shall not exceed a preset total maximum transmission power.
- the first frequency domain resource includes a first portion of bandwidth (BWP)
- the second frequency domain resource includes a second BWP
- the configuration information includes: second information, at least used to configure the second BWP.
- the second information is also used to configure the first BWP.
- the configuration information may further include: third information for activating the first BWP and/or the second BWP.
- the first BWP and the second BWP belong to the same carrier.
- both the first BWP and the second BWP are active BWPs, and/or the first BWP and the second BWP use the same duplex mode.
- the first BWP and the second BWP may alternately switch to be the active BWP.
- the configuration information is used to configure multiple candidate BWPs
- the method further includes: receiving perception trigger information to indicate a target BWP as the first BWP, wherein the target BWP is selected from the multiple candidate BWPs.
- the communication method further includes: in response to an overlap between the time period of communication using the second BWP and the time period of transmitting sensing signals using the first BWP, determining whether to switch to activate the BWP based on the priority order of communication and sensing; in response to a higher priority of the signal or channel transmitted on the BWP after switching than the signal or channel transmitted simultaneously on the BWP before switching, determining to switch to activate the BWP; in response to a lower priority of the signal or channel transmitted on the BWP after switching than the signal or channel transmitted simultaneously on the BWP before switching, determining not to switch to activate the BWP.
- the first frequency domain resource includes a first sub-band
- the second frequency domain resource includes a second sub-band
- the configuration information includes: fourth information for configuring the first sub-band and the second sub-band.
- the first sub-band and the second sub-band have the same transmission direction, or the first sub-band and the second sub-band have different transmission directions in at least one time unit.
- the configuration information further includes: fifth information, used to indicate that one or more subbands for subband full-duplex are the first subband.
- the subcarrier spacing of the first frequency domain resource and the subcarrier spacing of the second frequency domain resource are configured independently.
- the communication method further includes: receiving sixth information, the sixth information being used to indicate a number of consecutive time units within a preset period for sensing, or the sixth information being used to indicate a number of uplink time units or a number of downlink time units within a preset period for sensing.
- this disclosure also provides a communication method, comprising: sending configuration information, wherein the configuration information is used to configure a first frequency domain resource and a second frequency domain resource, wherein the first frequency domain resource is used for sensing and the second frequency domain resource is used for communication; receiving an echo signal, wherein the echo signal is associated with a sensing signal transmitted via the first frequency domain resource; and using the second frequency domain resource for communication.
- the first frequency domain resource includes a first portion bandwidth (BWP)
- the second frequency domain resource includes a second BWP
- the configuration information includes: second information for configuring at least one of the first BWP and the second BWP.
- the first BWP and the second BWP belong to the same carrier.
- both the first BWP and the second BWP are active BWPs, and/or the first BWP and the second BWP use the same duplex mode.
- the first BWP and the second BWP may alternately switch to be the active BWP.
- the configuration information is used to configure multiple candidate BWPs
- the method further includes: sending perception trigger information to indicate that a target BWP is the first BWP, wherein the target BWP is selected from the multiple candidate BWPs.
- the communication method further includes: in response to an overlap between the time period of communication using the second BWP and the time period of transmitting sensing signals using the first BWP, determining whether to switch to activate the BWP based on the priority order of communication and sensing; in response to a higher priority of the signal or channel transmitted on the BWP after switching than the signal or channel transmitted simultaneously on the BWP before switching, determining to switch to activate the BWP; in response to a lower priority of the signal or channel transmitted on the BWP after switching than the signal or channel transmitted simultaneously on the BWP before switching, determining not to switch to activate the BWP.
- the communication method further includes: sending a sixth message, the sixth message being used to indicate a number of consecutive time units within a preset period for sensing, or the sixth message being used to indicate a number of uplink time units or a number of downlink time units within a preset period for sensing.
- this disclosure also provides a communication device, comprising: a receiving module for receiving configuration information, the configuration information being used to configure a first frequency domain resource and a second frequency domain resource, the first frequency domain resource being used for sensing, and the second frequency domain resource being used for communication; a sensing module for transmitting sensing signals using the first frequency domain resource; and a communication module for performing communication using the second frequency domain resource.
- this disclosure also provides a communication device, comprising: a transmitting module for transmitting configuration information, wherein the configuration information is used to configure a first frequency domain resource and a second frequency domain resource, wherein the first frequency domain resource is used for sensing and the second frequency domain resource is used for communication; a sensing module for receiving an echo signal, wherein the echo signal is associated with a sensing signal transmitted via the first frequency domain resource; and a communication module for using the second frequency domain resource for communication.
- this disclosure also provides a computer-readable storage medium, which is a non-volatile or non-transient storage medium storing a computer program thereon.
- a computer program When the computer program is run by a processor, it executes the steps of the above-described method.
- this disclosure also provides a computer program product, including a computer program/instructions that, when executed by a processor, implement the steps of the above-described method.
- this disclosure also provides a communication device, including a memory and a processor.
- the memory stores a computer program that can run on the processor, and the processor executes the steps of the above-described method when running the computer program.
- This disclosure provides a communication method, including: a network device sending configuration information to a UE, and correspondingly, the UE receiving the configuration information, wherein the configuration information is used to configure a first frequency domain resource and a second frequency domain resource, the first frequency domain resource being used for sensing, and the second frequency domain resource being used for communication; the UE using the first frequency domain resource to send a sensing signal, and correspondingly, the network device receiving an echo signal, the echo signal being associated with the sensing signal sent via the first frequency domain resource; and the UE using the second frequency domain resource to communicate with the network device.
- this disclosed solution enables frequency division multiplexing for communication and sensing, allowing the UE to perform communication and sensing services in parallel, thus improving service processing efficiency.
- the first and second frequency domain resources can correspond to the same time unit, allowing the UE to perform communication and sensing services in the same time unit. This ensures that both sensing and communication services can be implemented in a timely manner, which is particularly beneficial for latency-sensitive services.
- Figure 1 is a flowchart of a communication method according to a first embodiment of the present disclosure
- Figure 2 is a schematic diagram of the first typical application scenario of the embodiments of this application.
- Figure 3 is a schematic diagram of the second typical application scenario of the embodiments of this application.
- Figure 4 is a schematic diagram of the third typical application scenario of the present invention.
- Figure 5 is a schematic diagram of the fourth typical application scenario of the embodiments of this application.
- Figure 6 is a schematic diagram of the fifth typical application scenario of the embodiments of this application.
- Figure 7 is a schematic diagram of the sixth typical application scenario of the embodiments of this application.
- Figure 8 is a schematic diagram of the seventh typical application scenario of the embodiments of this application.
- Figure 9 is a schematic diagram of the eighth typical application scenario of the embodiments of this application.
- Figure 10 is a schematic diagram of the ninth typical application scenario of the present application embodiment.
- Figure 11 is a flowchart of a communication method according to a second embodiment of the present disclosure.
- Figure 12 is a schematic diagram of the structure of a communication device according to a third embodiment of the present disclosure.
- Figure 13 is a schematic diagram of the structure of a communication device according to the fourth embodiment of this disclosure.
- the communication of the sixth-generation mobile communications (6G) technology may introduce sensing functions, but at present, the allocation mechanism for resources used for sensing and resources used for communication is still unclear.
- NR New Radio
- CDM Code Division Multiplexing
- TDM Time Division Multiplexing
- FDM Frequency Division Multiplexing
- CDM Code Division Multiplexing
- the UE can only perform one type of service at a time, which is clearly disadvantageous when performing latency-sensitive services. For example, if the communication service is latency-sensitive, and the UE is configured to perform a sensing service for a period of time, the communication service may time out by the time the sensing service is completed, preventing the user from properly enjoying the services provided by the communication service.
- CDM for both communication and sensing results in higher implementation costs on the UE side and greater overall complexity.
- this disclosure provides a communication method, comprising: a network device sending configuration information to a UE; correspondingly, the UE receiving the configuration information, wherein the configuration information is used to configure a first frequency domain resource and a second frequency domain resource, the first frequency domain resource being used for sensing, and the second frequency domain resource being used for communication; the UE using the first frequency domain resource to send a sensing signal; correspondingly, the network device receiving an echo signal, the echo signal being associated with the sensing signal sent via the first frequency domain resource; and the UE using the second frequency domain resource to communicate with the network device.
- this disclosed solution enables frequency division multiplexing for communication and sensing, allowing the UE to perform communication and sensing services in parallel, thus improving service processing efficiency.
- the first and second frequency domain resources can correspond to the same time unit, allowing the UE to perform communication and sensing services in the same time unit. This ensures that both sensing and communication services can be implemented in a timely manner, which is particularly beneficial for latency-sensitive services.
- the sensing service in this disclosure refers to the service provided by a sensing node (also called a sensing device) with sensing capabilities to sense a target and obtain relevant information about the target.
- the sensing service can be applied to the Internet of Things (IoT) field.
- the sensing service may include speed sensing services for estimating the moving speed of the target.
- the sensing service may include distance sensing services for estimating the distance to the target.
- the sensing service is a service provided by the sensing scenario of a communication-sensing integrated system (referred to as integrated sensing).
- the sensing node acting as the sensing initiator, sends sensing signals
- the sensing node acting as the sensing responder, receives the signals generated after the sensing signals are applied to the target and processes the received signals using sensing algorithms.
- the processed sensing results can be reported to the base station or sensing function (SF) through the uplink channel, or used by the sensing node that received the signal, or by other UEs.
- the sensing function can be a network element of the core network.
- the sensing node can be a UE or a network device.
- the sensing initiator and the sensing receiver are the same sensing node. That is, the sensing node itself sends sensing signals and receives the signals returned after the sensing signals are applied to the sensing target.
- the signal received by the sensing receiver in single-site sensing mode is denoted as the echo signal.
- Sensing types using single-site sensing mode can include UE-initiated and network-device-initiated sensing.
- the sensing initiator and sensing receiver can be different sensing nodes. That is, sensing node A sends a sensing signal, and sensing node B receives the signal generated after the sensing signal is applied to the sensing target.
- the signal received by the sensing receiver in dual-site sensing mode is usually called the received signal.
- the signals received by the sensing receiver in both single-site and dual-site sensing modes are collectively referred to as echo signals.
- Sensing types using dual-site sensing mode can include: network device sending and UE receiving, network device a sending and network device b receiving, UE sending and network device receiving, and UEa sending and UEb receiving.
- the sensing initiator is referred to as end a
- the sensing receiver is referred to as end b.
- end a can also receive the sensing echo signal; that is, in this case, the sensing initiator can perform single-site sensing mode while simultaneously performing dual-site sensing mode.
- Figure 1 is a flowchart of a communication method according to the first embodiment of this disclosure.
- This implementation scheme can be applied to application scenarios where there are both communication services and sensing services between the UE and network equipment.
- the communication method provided in steps S101 to S103 below can be executed by a chip with communication function in the UE, or by a baseband chip in the UE.
- the UE can act as a sensing initiator in a sensing scenario.
- the communication method of this implementation scheme may include the following steps:
- Step S101 Receive configuration information.
- the configuration information is used to configure the first frequency domain resources and the second frequency domain resources.
- the first frequency domain resources are used for sensing, and the second frequency domain resources are used for communication.
- Step S102 Use the first frequency domain resources to send a sensing signal
- Step S103 Use the second frequency domain resources for communication.
- Steps S102 and S103 can be executed in parallel.
- the two steps can be executed simultaneously or sequentially (for example, in the embodiment shown in Figures 7 and 8 below, where communication and sensing are performed sequentially by switching between the first and second frequency domain resources).
- the total resources available for network device configuration are divided into a second frequency domain resource for communication and a first frequency domain resource for sensing.
- the signals or signals used for sensing are frequency-division multiplexed with the signals or channels used for communication.
- the second frequency domain resources may include, for example, frequency domain resources for transmitting data, frequency domain resources for transmitting the Physical Uplink Control Channel (PUCCH), and frequency domain resources for transmitting the Physical Downlink Shared Channel (PDSCH).
- PUCCH Physical Uplink Control Channel
- PDSCH Physical Downlink Shared Channel
- the types of information that can be transmitted on the first frequency domain resources may include sensing reference signals for sensing, or sensing result information obtained based on sensing reference signals, and may also include higher-layer signaling for establishing links between the UE and network devices.
- resources used for communication and resources used for sensing are frequency-division multiplexed.
- the total resources occupy a number of subcarriers in the frequency domain.
- n (n>0) of these subcarriers are allocated to the first frequency domain resources, and the remaining subcarriers can be allocated entirely or partially to the second frequency domain resources.
- the first and second frequency domain resources can correspond to the same time domain resources. Therefore, communication services and sensing services can be performed simultaneously.
- the sensing signal may include a sensing reference signal, that is, a reference signal used for sensing, such as a Channel State Information-Reference Signal (CSI-RS), a Positioning Reference Signal (PRS), or a Sounding Reference Signal (SRS).
- CSI-RS Channel State Information-Reference Signal
- PRS Positioning Reference Signal
- SRS Sounding Reference Signal
- frequency division multiplexing in communication can also include, for example, echo signals, which carry sensing information (i.e., sensing results) for the sensing target.
- frequency division multiplexing in communication there can also be, for example, measurement reports, which are obtained based on echo signal processing.
- the sensing signal can be carried in the form of a channel.
- the sensing signal can be referred to as a sensing channel, i.e., a channel used for sensing.
- the information mentioned in this application can be configured by the network side through higher-layer signaling (such as Radio Resource Control (RRC)).
- RRC Radio Resource Control
- the information can be carried through Downlink Control Information (DCI) or Medium Access Control-Control Element (MAC-CE).
- DCI Downlink Control Information
- MAC-CE Medium Access Control-Control Element
- frequency domain multiplexing methods for sensing and communication can be divided into three levels: Carrier Component (CC) level, Bandwidth Part (BWP) level, and Inner-BWP level.
- CC Carrier Component
- BWP Bandwidth Part
- Inner-BWP level Inner-BWP level
- either the first frequency domain resource or the second frequency domain resource may include a carrier.
- the configuration information may include first information for configuring at least one carrier.
- the configuration information may include at least one of the following: the index of each carrier, the frequency band of each carrier in the frequency domain, and the preset maximum transmit power corresponding to each carrier.
- the preset maximum transmit power refers to the maximum allowed transmit power configured by the UE on serving cell c and carrier f.
- configuration information may also include indication information to indicate the association between at least one carrier and the sensing.
- a 1-bit indicator can be used to enable or disable whether the corresponding carrier has sensing capabilities. Assuming the indicator for carrier 1 (CC-1) is set to 0, it indicates that carrier 1 does not have sensing capabilities, meaning carrier 1 belongs to the second frequency domain resource used for communication. Assuming the indicator for carrier 2 (CC-2) is set to 1, it indicates that carrier 2 has sensing capabilities, meaning carrier 2 belongs to the first frequency domain resource used for sensing.
- the first and second frequency domain resources can be selected from the same carrier group, and the network side does not need to pre-configure corresponding carrier groups for different types of services, which is conducive to improving resource utilization.
- carrier groups for sensing can be introduced; that is, carrier groups for sensing (denoted as, first carrier group) and/or carrier groups for communication (denoted as, second carrier group) are pre-configured and divided. Multiple first carrier groups and multiple second carrier groups may exist. For any one of the first and second carrier groups, a single carrier group may include at least one carrier.
- the at least one carrier group configured in the configuration information can be selected from at least one first carrier group and at least one second carrier group.
- the first carrier group may include carrier 1 (CC-1), carrier 2 (CC-2) and carrier 3 (CC-3).
- CC-1 carrier 1
- CC-2 carrier 2
- CC-3 carrier 3
- D-S represents the downlink transmission slot used for sensing
- X represents the flexible slot or flexible symbol
- U-S represents the uplink transmission slot used for sensing.
- the second carrier group may include carrier 4 (CC-4), carrier 5 (CC-5), and carrier 6 (CC-6).
- CC-4 carrier 4
- CC-5 carrier 5
- CC-6 carrier 6
- the configuration information can be configured for the UE by selecting at least one carrier or one carrier group from the first carrier group and the second carrier group. For example, assuming the configuration information includes indices 1 and 5, it indicates that the UE is configured with CC-1 for sensing and CC-5 for communication. Accordingly, CC-1 is the first frequency domain resource, and CC-5 is the second frequency domain resource. As another example, the configuration information includes indices 1, 3, and 5, indicating that the UE is configured with CC-1 and CC-3 for sensing and CC-5 for communication. Accordingly, CC-1 and CC-3 are the first frequency domain resources, and CC-5 is the second frequency domain resource.
- each carrier may have a corresponding preset maximum transmit power.
- CC-1, CC-2, and CC-3 correspond to preset maximum transmit powers Ps-cmax,f,c used for sensing, respectively
- CC-4, CC-5, and CC-6 correspond to preset maximum transmit powers Pcmax,f,c, respectively.
- the specific values of the three Ps-cmax,f,c can be the same or different; similarly, the specific values of the three Pcmax,f,c can be the same or different.
- the network side can configure the upper and lower bounds of the preset maximum transmit power for each carrier used for sensing via higher-layer signaling. That is, the preset maximum transmit power of the UE when transmitting sensing signals using the configured carrier can arbitrarily take the value from the preset numerical range configured by the higher-layer signaling: [upper bound, lower bound]. Similarly, network devices can also configure the upper and lower bounds of the preset maximum transmit power for each carrier used for communication via higher-layer signaling.
- the transmit power used to transmit sensing signals or conduct communication using the carrier shall not exceed the preset maximum transmit power corresponding to the carrier.
- the transmit power of the UE using CC-1 to transmit sensing signals cannot exceed Ps-cmax,f,c corresponding to CC-1.
- the transmit power of the UE using CC-4 for communication must be less than or equal to Pcmax,f,c corresponding to CC-4.
- the sum of the transmission power used to send sensing signals using the first frequency domain resources and the transmission power used to communicate using the second frequency domain resources shall not exceed the preset total maximum transmission power (denoted as Pcmax).
- Pcmax the preset total maximum transmission power
- the carrier groups used for sensing and the carrier groups used for communication each have their corresponding maximum transmit power (i.e., preset maximum transmit power), and then together they are subject to the same larger power constraint (i.e., preset total maximum transmit power). This is beneficial for rationally determining the power allocation between the two services when using frequency division multiplexing for communication and sensing.
- the transmission power can be preferentially allocated to sensing services (or communication services) in a sensing-first (or communication-first) manner.
- the protocol can specify whether power allocation prioritizes sensing or communication when power is limited. In this case, the transmit power of frequency domain resources corresponding to communication or sensing services with lower priority is limited.
- carriers in the first carrier group and carriers in the second carrier group may overlap, meaning that a carrier can be used for both communication and sensing.
- Configuration information can indicate (e.g., via the aforementioned 1-bit indication information) the service served by that carrier in this instance.
- the same carrier can be configured with two preset maximum transmit powers.
- the preset maximum transmit power corresponding to a carrier can include a first power and a second power.
- the first power is associated with sensing, and the second power is associated with communication.
- the same carrier can be configured with both Ps-cmax,f,c and Pcmax,f,c.
- the preset maximum transmit power corresponding to the carrier is determined based on the specific signal/channel/data type transmitted by the carrier at the current moment.
- the network device can be pre-configured (e.g., via higher-layer signaling) with three carrier groups: a first carrier group 1, a first carrier group 2, and a second carrier group.
- the first carrier group 1 includes CC-1, CC-2, and CC-3;
- the first carrier group 2 includes CC-4 and CC-7;
- the second carrier group includes CC-4, CC-5, and CC-6. It is evident that the first carrier group 2 and the second carrier group share CC-4.
- CC-4 can be configured with a first power Ps-cmax,f,c and a second power Pcmax,f,c. Assuming the configuration information indicates that the first frequency domain resources include CC-4 and CC-1, and the second frequency domain resources include CC-5 and CC-6, then when the UE determines to use CC-4 to transmit sensing signals, it uses the first power Ps-cmax,f,c corresponding to CC-4 as the power allocation constraint.
- the configuration information may indicate that both the first and second frequency domain resources include CC-4.
- the UE can determine the first power Ps-cmax,f,c and the second power Pcmax,f,c as power allocation constraints based on the type of service actually used with CC-4 at the current time. For example, assuming that the UE uses CC-4 to transmit sensing signals at time t1 according to the network device's scheduling, the UE determines that the first power Ps-cmax,f,c corresponding to CC-4 is used as the power allocation constraint at time t1.
- the UE determines that the second power Pcmax,f,c corresponding to CC-4 is used as the power allocation constraint at time t2.
- the carriers in the first carrier group and the second carrier group may not overlap, that is, each carrier is fixed to serve a single service, as shown in Figure 3.
- the values of Ps-cmax,f,c can be equal to the values of Pcmax,f,c. In this case, the network side does not need to configure the specific values of Ps-cmax,f,c separately.
- the upper bound of Ps-cmax,f,c may be equal to the upper bound of Pcmax,f,c, and/or the lower bound of Ps-cmax,f,c may be equal to the lower bound of Pcmax,f,c.
- the first frequency domain resource may include a first BWP
- the second frequency domain resource may include a second BWP.
- the second BWP is a BWP independent of the first BWP; in other words, an independent BWP can be configured for sensing.
- the configuration information may include second information, at least for configuring the second BWP.
- one active BWP can be configured within a carrier for sensing purposes.
- two active BWPs can exist simultaneously within a carrier, one for sensing and the other for communication.
- the two active BWPs can be an initial BWP for sensing and an initial BWP for communication, or they can be a non-initial BWP for sensing and a non-initial BWP for communication.
- relevant parameter information for the initial second BWP can be added to the configuration information.
- the specific parameter types and contents can be referred to the configuration provisions for BWP in the existing communication protocol.
- an initial DownlinkBWP for sensing parameter can be added to the DownlinkConfigCommon information element to configure information related to the initial second BWP.
- the initial second BWP refers to the second BWP that is activated by default, i.e., the initially activated BWP for sensing.
- the ServingCellConfig information element can be used to add downlinkBWP for sensing-ToReleaseList and downlinkBWP for sensing-ToAddModList parameters to configure information about candidate second BWPs available for UE handover.
- the UE can handover from the currently active second BWP to a candidate second BWP based on a handover command sent by the network device, and the candidate second BWP becomes the active BWP accordingly.
- the second information can also be used to configure the first BWP.
- the initial first BWP can be configured through the initial downlink BWP parameter in the DownlinkConfigCommon information element.
- the initial first BWP refers to the first BWP that is activated by default, that is, the BWP that is initially activated for communication.
- one or more candidate second BWPs can be configured through the downlinkBWP-ToReleaseList parameter for the release list and the downlinkBWP-ToAddModList parameter for the add/modify list in the ServingCellConfig information element.
- the configuration information may further include third information for activating the first BWP and/or the second BWP.
- the third information may be, for example, the aforementioned switching instruction for switching the activated first BWP among multiple candidate first BWPs; similarly, the third information may be used for switching the activated second BWP among multiple candidate second BWPs.
- third-party information can be carried in RRC, DCI, or MAC-CE.
- the activation state of the first BWP and/or the second BWP may also be switched in response to the expiration of a timer.
- the first BWP and the second BWP can belong to the same carrier, and both the first BWP and the second BWP are active BWPs.
- the UE can have two active BWPs simultaneously on one CC.
- BWPs For example, assuming four BWPs are configured in a carrier, existing technologies only allow one BWP to be active at a time. However, with this implementation scheme, two BWPs can be configured in a single carrier for communication and two for sensing, with two BWPs active simultaneously. One active BWP is used for communication, and the other is used for sensing.
- the first BWP and the second BWP use the same duplex mode. That is, the duplex mode of the first BWP and the second BWP is determined based on the configuration of the frequency band level to which they both belong.
- the frequency band level can be configured using Time Division Duplexing (TDD) (e.g., resource configuration), in which case all BWPs on all carriers within the frequency band are TDD.
- TDD Time Division Duplexing
- the TDD time slot structures of the first BWP and the second BWP within a carrier can be completely identical.
- the UE can receive echo signals via BWP-1 and perform downlink reception via BWP-2 from time t0 to time t1. From time t2 to time t3, the UE transmits sensing signals via BWP-1 and performs uplink transmission via BWP-2.
- the transmission directions of the first BWP and the second BWP can be the same, as shown in Figure 5.
- the transmission direction of the sensing signal is consistent with the communication direction.
- the time slot format configuration of the first BWP and the second BWP can be simultaneously indicated by a single TDD-UL/DL-ConfigurationCommon signaling.
- the transmission directions of the first BWP and the second BWP can be different.
- the transmission direction of BWP-1 is uplink
- the transmission direction of BWP-2 is downlink.
- the time slot structure of the first BWP and the second BWP can be configured separately using two TDD-Uplink/Downlink Common Configuration (TDD-UL/DL-ConfigurationCommon) signaling.
- TDD-UL/DL-ConfigurationCommon is used to configure the time slot structure of the second BWP
- TDD-UL/DL-ConfigurationCommon2 is used to configure the time slot structure of the first BWP.
- the frequency band level configuration is configured using Frequency Division Duplexing (FDD), in which case all BWPs of all carriers within the frequency band are FDD.
- FDD Frequency Division Duplexing
- the frequency band-level FDD configuration includes pure uplink frequency bands, such as BWP-1 and BWP-2 in CC-1, where the former is the first BWP and the latter is the second BWP. Furthermore, the frequency band-level FDD configuration also includes pure downlink frequency bands, such as BWP-1 and BWP-2 in CC-2, where the former is the first BWP and the latter is the second BWP.
- the configuration information in step S101 can be obtained by selecting a combination of BWPs in CC-1 and CC-2.
- the configuration information can indicate BWP-1 of CC-1 and BWP-2 of CC-2. Accordingly, the UE can receive sensing signals via BWP-1 of CC-1, or the network device can receive echo signals via BWP-1 of CC-1 and perform uplink communication via BWP-2 of CC-2.
- the configuration information can indicate BWP-1 and BWP-2 of CC-1. Accordingly, the network device can receive echo signals via BWP-1 of CC-1 and perform downlink communication via BWP-2 of CC-1.
- the first BWP and the second BWP belong to the same carrier, and the first BWP and the second BWP can alternately switch to be the active BWP. That is, although a separate BWP is configured in the carrier for sensing, the UE can still have a maximum of one active BWP on a single CC at any given time, performing sensing services through switching. Thus, the UE only needs to prepare one set of BWP radio frequency resources to realize sensing and communication services in frequency division multiplexing, resulting in low implementation cost.
- the communication method of this embodiment may further include the step of: receiving sensing trigger information, which may be used to trigger the transmission of sensing signals or to indicate switching to the first BWP.
- the UE can communicate on the second BWP by default, and in response to receiving a sensing trigger information, the UE can switch to the first BWP by default to perform sensing.
- the sensing trigger information may be carried in DCI, MAC-CE, or RRC signaling.
- configuration information can be used to configure multiple candidate Business Window (BWPs), all of which are used for sensing.
- BWPs can be used for different sensing tasks, such as different specific subcategories of sensing services or different requirements, and corresponding candidate BWPs can be configured separately.
- the perception trigger information can also be used to designate a target BWP as the first BWP, with the target BWP selected from multiple candidate BWPs.
- the perception trigger information can carry the index (BWP-ID) of the BWP, and the UE determines the candidate BWP corresponding to this index as the first BWP.
- BWP-ID the index of the BWP
- the configuration information configures four BWPs, where BWP-2 is the second BWP, and BWP-1, BWP-3, and BWP-4 are all used for perception (i.e., these three BWPs are all candidate BWPs), and the BWP-ID carried by the DCI is 1, then the UE determines that it needs to switch to BWP-1 to send the perception signal. At this time, BWP-1 is the first BWP.
- the UE in response to the completion of the perceived service on BWP-1, the UE can actively switch back to BWP-2 to continue communication services.
- the dashed line indicates that the resource is not actually used.
- the UE can periodically switch between the first BWP and the second BWP to periodically or semi-continuously send sensing signals, as shown in Figure 8.
- the UE since the UE knows in advance that it will need to switch to another service-related BWP, it can begin the accurate handover some time before the actual transmission of signals/channels/data for that service.
- This advance preparation time can be called the preparation time.
- the UE can prepare the signals/channels/data that need to be transmitted on the BWP to which it needs to switch, so that signal/channel/data transmission can begin immediately after the handover.
- the specific value of the preparation time can refer to the values specified in existing BWP handover related protocols. In practical applications, the aforementioned values can also be adjusted as needed to reasonably determine the preparation time.
- the configuration information configures BWP-1 as the first BWP and BWP-2 as the second BWP, and configures the UE to periodically transmit sensing signals.
- the UE can then periodically switch between BWP-2 and BWP-1 to perform communication services and sensing services respectively.
- the UE uses a self-transmitting and self-receiving mode for sensing.
- the UE has previously switched to BWP-1 to transmit sensing signals and then switched back to BWP-2 for downlink reception.
- the UE switches from BWP-2 to BWP-1 and receives echo signals via BWP-1.
- the UE Upon receiving the echo signal, the UE periodically switches back to BWP-2 for uplink transmission.
- the UE backend can process the received echo signals to obtain sensing results and then generate a measurement report based on those results.
- the UE can switch from BWP-2 to BWP-1 and report the measurement report to the network device via BWP-1.
- the UE in response to the overlap between the time period of communication using the second BWP and the time period of sending sensing signals using the first BWP, the UE can determine whether to switch to activate the BWP based on the priority order of communication and sensing.
- the UE can transmit, receive, and transmit and receive simultaneously on two BWPs when there are overlapping time periods, considering that there will still be some interference, it is preferable to ensure that the service on one of the BWPs can proceed smoothly.
- the time period during which the first BWP transmits the sensing signal may include the actual transmission duration and/or the retuning time for switching between the head and tail BWPs.
- the handover activation BWP is determined in response to the fact that the priority of the signal or channel transmitted on the BWP after the handover is higher than the priority of the signal or channel transmitted on the BWP before the handover that is simultaneously transmitted (overlapping) with it.
- control signaling and synchronization signaling can be predefined to have higher priority than sensing signals.
- Control signaling can be, for example, a Physical Random Access Channel (PRACH), a Physical Downlink Control Channel (PDCCH), or a Physical Uplink Control Channel (PUCCH).
- Synchronization signaling can be, for example, a Synchronization Signal/Physical Broadcast Channel Block (SS/PBCH BLOCK, i.e., SSB).
- SS/PBCH BLOCK Synchronization Signal/Physical Broadcast Channel Block
- the UE can begin preparing for handover and switch to BWP-1 at time t3 to perform sensing services.
- the first frequency domain resources may include a first sub-band
- the second frequency domain resources may include a second sub-band
- the configuration information may include fourth information for configuring the first subband and the second subband.
- the first and second subbands belong to the same BWP.
- the fourth information may include at least one of the following parameters for the first and/or second subband: subband start frequency domain position, subband end frequency domain position, subband bandwidth, etc.
- BWP-1 includes subband-1 and subband-2, both of which have a time slot format of DXU, wherein subband-1 is configured as the first subband and subband-2 is configured as the second subband.
- This example can be applied to non-subband full duplex (SBFD) scenarios.
- the preset maximum transmit power is the preset maximum transmit power corresponding to the carrier of the BWP belonging to the first subband and the second subband.
- the transmission power of one of the subbands can be limited according to service priority. For example, if the communication service has a higher priority, the transmission power of the first subband can be limited, that is, the transmission power of the second subband can be allocated preferentially. Alternatively, if the sensing service has a higher priority, the transmission power of the second subband can be limited, that is, the transmission power of the first subband can be allocated preferentially.
- the first sub-band and the second sub-band have different transmission directions in at least one time unit.
- the beam direction of the resources allocated for communication and the beam direction of the resources allocated for sensing can be different in actual configuration.
- the beam direction for transmitting sensing signals in the first subband is different from the beam direction for communication in the second subband.
- the protocol can specify that when beam directions are inconsistent, the first sub-band will follow the beam direction of the second sub-band. For example, if communication beam priority is specified, the first sub-band will send sensing signals following the beam direction of the second sub-band. Or, if sensing beam priority is specified, the second sub-band will communicate using the beam direction of the first sub-band.
- the first sub-band and the second sub-band have different transmission directions in at least one time unit. In this case, transmission is performed on each sub-band according to its respective configured transmission direction.
- the configuration information may include: fifth information, used to indicate that one or more sub-bands for SBFD are the first sub-bands.
- BWP-1 divides the frequency domain into two downlink subbands (subband-1 and subband-3) and one uplink subband (subband-2) without overlap.
- the fifth information further indicates that subband-3 is the first subband.
- BWP-2 is divided into two downlink subbands (subband-1 and subband-3) and one uplink subband (subband-2) in the frequency domain without overlap.
- the fifth information further indicates that subband-3 and subband-2 are both the first subband.
- the subcarrier spacing (SCS) of the first frequency domain resource and the SCS of the second frequency domain resource can be configured independently. That is, the SCS of the first frequency domain resource and the SCS of the second frequency domain resource can be the same, as shown in the example of first carrier group 2 in Figure 4 and the example shown by label (b) in Figure 10. Alternatively, the SCS of the first frequency domain resource and the SCS of the second frequency domain resource can also be different, as shown in the examples of first carrier group 1 in Figures 3 and 4, Figures 5, 7, and 9, and the example shown by label (a) in Figure 10.
- the UE can act as both a sensing initiator and a sensing receiver. It receives the echo signal generated after a sensing signal (e.g., a sensing reference signal) transmitted via a first frequency domain resource is applied to a sensing target, and processes the echo signal to obtain the sensing result. A measurement report can be generated based on the sensing result. Furthermore, the UE can use the first frequency domain resource to transmit the measurement report.
- a sensing signal e.g., a sensing reference signal
- time slot sensing can be for network devices to send sensing signals, for UEs to send sensing signals, or for both network devices and UEs to send sensing signals.
- the several consecutive time slots can be at predefined locations, such as several consecutive time slots at the beginning or end of a preset period, or the time slot locations can be configured by the network side through higher-layer signaling, for example, by configuring the specific time slot locations used for sensing through a bitmap.
- Each bit in the bitmap corresponds to one time slot within the preset period; a configuration of 0 indicates that the time slot cannot be used for sensing, and a configuration of 1 indicates that the time slot can be used for sensing.
- time slots For example, within a two-radio frame period, there are a total of 20 time slots, of which four can be designated for sensing purposes.
- the specific locations of these four time slots can be determined through predefined methods, such as the first four slots, the last four slots, or other predefined locations.
- the specific locations of the four time slots can be configured by the network side through higher-layer signaling. This time slot structure appears periodically in the time domain.
- the UE and/or network device may transmit sensing signals using first frequency domain resources on a number of consecutive time units within a preset period indicated by the sixth information.
- the sixth piece of information can be used to indicate a number of uplink time units or downlink time units within a preset period for sensing.
- the network side can specify a number of uplink or downlink time slots for sensing purposes within a predefined period.
- the sensing purpose of uplink time slots can be either for network devices to send sensing signals or for UEs to send sensing signals; the sensing purpose of downlink time slots can also be either for network devices to send sensing signals or for UEs to send sensing signals.
- the uplink time slots can be a number of consecutive uplink time slots or a number of discontinuous uplink time slots.
- the downlink time slots can be a number of consecutive downlink time slots or a number of discontinuous downlink time slots.
- the uplink or downlink time slots can be in predefined locations, such as several consecutive uplink or downlink time slots at the beginning of a preset period, or several consecutive uplink or downlink time slots at the end of a preset period.
- the time slot locations can be configured by the network side through higher-layer signaling, such as configuring the specific time slot locations of uplink or downlink time slots through a bit map. Each bit in the bit map corresponds to one time slot within the period. A configuration of 0 indicates that the time slot cannot be used for sensing, and a configuration of 1 indicates that the time slot can be used for sensing.
- time slots there are a total of 20 time slots, of which four can be designated for sensing purposes.
- the specific locations of these four time slots can be determined through predefined methods, such as the first four uplink time slots, the last four uplink time slots, the first four downlink time slots, the last four downlink time slots, or other predefined locations.
- the specific locations of the four time slots can be configured by the network side through higher-layer signaling.
- the UE and/or network device may use the first frequency domain resources to transmit sensing signals on a number of uplink or downlink time units within a preset period indicated by the sixth information.
- frequency division multiplexing for communication and sensing can be achieved, enabling the UE to perform communication and sensing services in parallel, thus improving service processing efficiency.
- the first and second frequency domain resources can correspond to the same time unit, allowing the UE to perform communication and sensing services in the same time unit.
- both sensing and communication services can be implemented in a timely manner, which is particularly beneficial for latency-sensitive services.
- Figure 11 is a flowchart of a communication method according to a second embodiment of the present disclosure.
- the communication method provided in steps S201 to S203 below can be executed by a chip with communication function in the network device, or by a baseband chip in the network device.
- the network device can be, for example, a base station.
- the communication method of this embodiment may include the following steps:
- Step S201 Send configuration information.
- the configuration information is used to configure the first frequency domain resources and the second frequency domain resources.
- the first frequency domain resources are used for sensing, and the second frequency domain resources are used for communication.
- Step S202 Receive the echo signal, which is associated with the sensing signal transmitted via the first frequency domain resource
- Step S203 Use the second frequency domain resources for communication.
- steps S201 to S203 can be considered as execution steps corresponding to steps S101 to S103 in the embodiments shown in Figures 1 to 10 above, and the two are complementary in terms of specific implementation principles and logic. Therefore, the explanation of the terms involved in this embodiment can be referred to the relevant descriptions of the embodiments shown in Figures 1 to 10, and will not be repeated here.
- the UE is the sensing initiator and the network device is the sensing receiver. Therefore, after the UE executes step S102 to send the sensing signal via the first frequency domain resource, the network device executes step S202 to receive the echo signal generated after the sensing signal acts on the sensing target.
- step S202 can be replaced by: receiving a measurement report, which is obtained by the UE based on the received echo signal.
- the network device in response to the configuration information configuring multiple candidate BWPs, after step S201 and before step S202, the network device may also perform the step of: sending perception trigger information to indicate that the target BWP is the first BWP, wherein the target BWP is selected from multiple candidate BWPs.
- FIG 12 is a schematic diagram of a communication device 3 according to a third embodiment of this disclosure. Those skilled in the art will understand that the communication device 3 of this embodiment can be used to implement the method and technical solutions described in the embodiments of Figures 1 to 10.
- the communication device 3 in this embodiment may include: a receiving module 31, used to receive configuration information, the configuration information being used to configure a first frequency domain resource and a second frequency domain resource, the first frequency domain resource being used for sensing, and the second frequency domain resource being used for communication; a sensing module 32, used to send sensing signals using the first frequency domain resource; and a communication module 33, used to perform communication using the second frequency domain resource.
- the aforementioned communication device 3 may correspond to a chip with communication function in the UE, or to a chip with data processing function, such as a system-on-a-chip (SOC), baseband chip, etc.; or to a chip module in the UE that includes a chip with communication function; or to a chip module with a chip with data processing function; or to the UE.
- a chip with communication function such as a system-on-a-chip (SOC), baseband chip, etc.
- SOC system-on-a-chip
- FIG 13 is a schematic diagram of the structure of a communication device 4 according to the fourth embodiment of this disclosure. Those skilled in the art will understand that the communication device 4 of this embodiment can be used to implement the method and technical solution described in the embodiment of Figure 11.
- the communication device 4 in this embodiment may include: a transmitting module 41, used to transmit configuration information, the configuration information being used to configure a first frequency domain resource and a second frequency domain resource, the first frequency domain resource being used for sensing, and the second frequency domain resource being used for communication; a sensing module 42, used to receive an echo signal, the echo signal being associated with a sensing signal transmitted via the first frequency domain resource; and a communication module 43, used to perform communication using the second frequency domain resource.
- a transmitting module 41 used to transmit configuration information, the configuration information being used to configure a first frequency domain resource and a second frequency domain resource, the first frequency domain resource being used for sensing, and the second frequency domain resource being used for communication
- a sensing module 42 used to receive an echo signal, the echo signal being associated with a sensing signal transmitted via the first frequency domain resource
- a communication module 43 used to perform communication using the second frequency domain resource.
- the aforementioned communication device 4 may correspond to a chip with communication function in a network device, or to a chip with data processing function, such as a system-on-a-chip (SOC), a baseband chip, etc.; or to a chip module in a network device that includes a chip with communication function; or to a chip module with a chip with data processing function; or to a network device.
- a chip with communication function such as a system-on-a-chip (SOC), a baseband chip, etc.
- SOC system-on-a-chip
- modules/units included in the various devices and products described in the above embodiments can be software modules/units, hardware modules/units, or a combination of both.
- each module/unit can be implemented using hardware methods such as circuits, or at least some modules/units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules/units can be implemented using hardware methods such as circuits;
- each module/unit can be implemented using hardware methods such as circuits, and different modules/units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules/units can be implemented using hardware methods such as circuits.
- the components can be implemented using software programs that run on the processor integrated within the chip module.
- the remaining (if any) modules/units can be implemented using hardware methods such as circuits.
- each of its components/units can be implemented using hardware methods such as circuits.
- Different modules/units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal.
- at least some modules/units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules/units can be implemented using hardware methods such as circuits.
- This disclosure also provides a computer-readable storage medium, which is a non-volatile or non-transitory storage medium, storing a computer program thereon.
- the storage medium may include a computer-readable storage medium such as non-volatile or non-transitory memory.
- the storage medium may include ROM, RAM, a magnetic disk, or an optical disk, etc.
- This disclosure also provides a computer program product, including a computer program/instructions that, when executed by a processor, implement the steps of the communication method provided in any of the above embodiments.
- This application also provides another communication device, including a memory and a processor.
- the memory stores a computer program that can run on the processor.
- the processor runs the computer program, it executes the steps of the communication method provided in the embodiments corresponding to Figures 3 to 11.
- the communication device can be integrated into a UE/network device, or the communication device can be, for example, a UE/network device.
- the technical solution of this invention is applicable to 5G (5-generation) communication systems, as well as 4G and 3G communication systems, and can also be applied to various communication systems that evolve in the future, such as 6G and 7G.
- This technical solution is also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, and Vehicle-to-Everything (V2X) architecture.
- relay network architecture dual-link architecture
- V2X Vehicle-to-Everything
- the 5G CN in this application embodiment can also be referred to as a new core network, 5G NewCore, or next-generation core (NGC), etc.
- the 5G-CN is set up independently of existing core networks, such as evolved packet core (EPC).
- EPC evolved packet core
- the base station (BS) in this application embodiment is a device deployed in a wireless access network to provide wireless communication functions.
- devices providing base station functions include a base transceiver station (BTS) and a base station controller (BSC); in a 3G network, devices providing base station functions include a Node B (NodeB) and a radio network controller (RNC); in a 4G network, devices providing base station functions include an evolved Node B (eNB); in wireless local area networks (WLANs), devices providing base station functions are access points (APs); in 5G New Radio (NR), devices providing base station functions include a continuing evolved Node B (gNB); and devices providing base station functions in future new communication systems, etc.
- eNB evolved Node B
- WLANs wireless local area networks
- APs access points
- NR 5G New Radio
- devices providing base station functions include a continuing evolved Node B (gNB); and devices providing base station functions in future new communication systems, etc.
- gNB continuing evolved Node B
- the one-way communication link from the access network to the terminal is defined as the downlink, the data transmitted on the downlink is called downlink data, and the transmission direction of the downlink data is called the downlink direction; while the one-way communication link from the terminal to the access network is defined as the uplink, the data transmitted on the uplink is called uplink data, and the transmission direction of the uplink data is called the uplink direction.
- the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory.
- the volatile memory can be random access memory (RAM), which is used as an external cache.
- the above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof.
- the above embodiments can be implemented, in whole or in part, as a computer program product.
- a computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions according to the embodiments of this application are generated.
- the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
- Computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another.
- the disclosed methods, apparatuses, and systems can be implemented in other ways.
- the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods.
- multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.
- the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.
- the units described as separate components may or may not be physically separate.
- the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
- the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can be physically included separately, or two or more units can be integrated into one unit.
- the integrated units described above can be implemented in hardware or in a combination of hardware and software functional units.
- the integrated units implemented as software functional units described above can be stored in a computer-readable storage medium.
- These software functional units, stored in a storage medium include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute some steps of the methods of the various embodiments of this application.
- the aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
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Abstract
一种通信方法及装置、计算机可读存储介质、计算机程序产品,所述方法包括:接收配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;使用所述第一频域资源发送感知信号;使用所述第二频域资源进行通信。通过本公开方案能够实现通信和感知的频分复用,使得UE能够并行地进行通信业务和感知业务,提高业务处理效率。
Description
本申请要求于2024年06月27日提交中国专利局、申请号为202410855695.5、申请名称为“通信方法及装置、计算机可读存储介质、计算机程序产品”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本公开涉及通信技术领域,具体地涉及一种通信方法及装置、计算机可读存储介质、计算机程序产品。
随着第五代移动通信技术(The Fifth-Generation mobile communications,简称5G)标准的制定(Released),学术界和工业界开始找下一个研究热点。考虑到无线系统的平滑演进、迎合新兴技术应用、未来网络的发展方向等诸多因素,雷达通信一体化,也称通信感知一体化(Integrated sensing and communication,简称ISAC)逐渐成为了众多热点研究之一。
随着感知功能的引入,如何合理分配用于感知的资源和用于通信的资源成为一大重点议题。
本公开解决的技术问题是提供一种改进的通信方法,能够实现通信和感知之间的频分复用。
为解决上述技术问题,本公开实施例提供一种通信方法,包括:接收配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;使用所述第一频域资源发送感知信号;使用所述第二频域资源进行通信。
可选的,对于所述第一频域资源和所述第二频域资源中任一频域资源,所述频域资源包括载波,所述配置信息包括:第一信息,用于配置至少一个载波;指示信息,用于指示所述至少一个载波与感知的关联关系。
可选的,所述至少一个载波选自至少一个第一载波组和至少一个第二载波组,所述第一载波组中的载波用于感知,所述第二载波组中的载波用于通信。
可选的,对于所述至少一个载波中的每一载波,使用所述载波发送感知信号或进行通信的发射功率不大于所述载波对应的预设最大发射功率。
可选的,所述载波对应的预设最大发射功率包括第一功率和第二功率,所述第一功率和感知相关联,所述第二功率和通信相关联。
可选的,所述载波对应的预设最大发射功率选取自预设数值区间,所述预设数值区间的上界值和下界值通过高层信令配置。
可选的,使用所述第一频域资源发送感知信号的发射功率和使用所述第二频域资源进行通信的发射功率之和,不大于预设总最大发射功率。
可选的,所述第一频域资源包括第一部分带宽BWP,所述第二频域资源包括第二BWP,所述配置信息包括:第二信息,至少用于配置所述第二BWP。
可选的,所述第二信息还用于配置所述第一BWP。
可选的,所述配置信息还包括:第三信息,用于激活所述第一BWP和/或所述第二BWP。
可选的,所述第一BWP和所述第二BWP属于同一载波。
可选的,所述第一BWP和所述第二BWP均为激活BWP,和/或,所述第一BWP和所述第二BWP采用相同的双工方式。
可选的,所述第一BWP和所述第二BWP交替切换为激活BWP。
可选的,所述配置信息用于配置多个候选BWP,所述方法还包括:接收感知触发信息,用于指示目标BWP作为所述第一BWP,所述目标BWP选自所述多个候选BWP。
可选的,所述通信方法还包括:响应于使用所述第二BWP进行通信的时间段和使用所述第一BWP发送感知信号的时间段存在重叠,根据通信和感知的优先级排序判断是否切换激活BWP;响应于切换后BWP上传输的信号或信道的优先级高于与之同时传输的切换前BWP上传输的信号或信道的优先级,确定切换激活BWP;响应于切换后BWP上传输的信号或信道的优先级低于与之同时传输的切换前BWP上传输的信号或信道的优先级,确定不切换激活BWP。
可选的,所述第一频域资源包括第一子带,所述第二频域资源包括第二子带,所述配置信息包括:第四信息,用于配置所述第一子带和所述第二子带。
可选的,所述第一子带和所述第二子带的传输方向相同,或者,所述第一子带和所述第二子带在至少一个时间单元的传输方向不相同。
可选的,所述配置信息还包括:第五信息,用于指示一个或多个用于子带全双工的子带为所述第一子带。
可选的,所述第一频域资源的子载波间隔和所述第二频域资源的子载波间隔独立配置。
可选的,所述通信方法还包括:接收第六信息,所述第六信息用于指示预设周期内的若干个连续的时间单元用于感知,或者,所述第六信息用于指示预设周期内的若干个上行时间单元或者若干个下行时间单元用于感知。
为解决上述技术问题,本公开实施例还提供一种通信方法,包括:发送配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;接收回波信号,所述回波信号与经由所述第一频域资源发送的感知信号相关联;使用所述第二频域资源进行通信。
可选的,所述第一频域资源包括第一部分带宽BWP,所述第二频域资源包括第二BWP,所述配置信息包括:第二信息,用于配置所述第一BWP和所述第二BWP中的至少一个。
可选的,所述第一BWP和所述第二BWP属于同一载波。
可选的,所述第一BWP和所述第二BWP均为激活BWP,和/或,所述第一BWP和所述第二BWP采用相同的双工方式。
可选的,所述第一BWP和所述第二BWP交替切换为激活BWP。
可选的,所述配置信息用于配置多个候选BWP,所述方法还包括:发送感知触发信息,用于指示目标BWP作为所述第一BWP,所述目标BWP选自所述多个候选BWP。
可选的,所述通信方法还包括:响应于使用所述第二BWP进行通信的时间段和使用所述第一BWP发送感知信号的时间段存在重叠,根据通信和感知的优先级排序判断是否切换激活BWP;响应于切换后BWP上传输的信号或信道的优先级高于与之同时传输的切换前BWP上传输的信号或信道的优先级,确定切换激活BWP;响应于切换后BWP上传输的信号或信道的优先级低于与之同时传输的切换前BWP上传输的信号或信道的优先级,确定不切换激活BWP。
可选的,所述通信方法还包括:发送第六信息,所述第六信息用于指示预设周期内的若干个连续的时间单元用于感知,或者,所述第六信息用于指示预设周期内的若干个上行时间单元或者若干个下行时间单元用于感知。
为解决上述技术问题,本公开实施例还提供一种通信装置,包括:接收模块,用于接收配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;感知模块,用于使用所述第一频域资源发送感知信号;通信模块,用于使用所述第二频域资源进行通信。
为解决上述技术问题,本公开实施例还提供一种通信装置,包括:发送模块,用于发送配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;感知模块,用于接收回波信号,所述回波信号与经由所述第一频域资源发送的感知信号相关联;通信模块,用于使用所述第二频域资源进行通信。
为解决上述技术问题,本公开实施例还提供一种计算机可读存储介质,所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质,其上存储有计算机程序,所述计算机程序被处理器运行时执行上述方法的步骤。
为解决上述技术问题,本公开实施例还提供一种计算机程序产品,包括计算机程序/指令,该计算机程序/指令被处理器执行时实现上述方法的步骤。
为解决上述技术问题,本公开实施例还提供一种通信装置,包括存储器和处理器,所述存储器上存储有可在所述处理器上运行的计算机程序,所述处理器运行所述计算机程序时执行上述方法的步骤。
与现有技术相比,本公开实施例的技术方案具有以下有益效果:
本公开实施例提供一种通信方法,包括:网络设备向UE发送配置信息,相应的,UE接收配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;UE使用所述第一频域资源发送感知信号,相应的,网络设备接收回波信号,回波信号与经由所述第一频域资源发送的感知信号相关联;UE使用所述第二频域资源与网络设备进行通信。
由此,通过本公开方案能够实现通信和感知的频分复用,使得UE能够并行地进行通信业务和感知业务,提高业务处理效率。具体而言,通过配置信息为UE分配频分复用的第一频域资源和第二频域资源,第一频域资源和第二频域资源可以对应相同的时间单元,从而UE可以在同一时间单元进行通信业务和感知业务。由此,感知业务和通信业务均能够及时得以实现,尤其对时延敏感的业务而言是有利的。
图1是本公开第一实施例一种通信方法的流程图;
图2是本申请实施例第一个典型应用场景的示意图;
图3是本申请实施例第二个典型应用场景的示意图;
图4是本发明实施例第三个典型应用场景的示意图;
图5是本申请实施例第四个典型应用场景的示意图;
图6是本申请实施例第五个典型应用场景的示意图;
图7是本申请实施例第六个典型应用场景的示意图;
图8是本申请实施例第七个典型应用场景的示意图;
图9是本申请实施例第八个典型应用场景的示意图;
图10是本申请实施例第九个典型应用场景的示意图;
图11是本公开第二实施例一种通信方法的流程图;
图12是本公开第三实施例一种通信装置的结构示意图;
图13是本公开第四实施例一种通信装置的结构示意图。
如背景技术所言,未来第六代移动通信技术(The Sixth-Generation mobile communications,简称6G)的通信可能引入感知功能,而现阶段对于用于感知的资源和用于通信的资源的分配机制尚不明确。
如果资源分配不合理,将造成感知业务和通信业务中的至少一个无法得到及时、正确地处理,影响用户的使用体验。具体而言,新空口(New Radio,简称NR,也可称为新无线)中常用的复用方式主要包括时分复用(Time Division Multiplexing,简称TDM)、频分复用(Frequency Division Multiplexing,简称FDM)以及码分复用(Code Division Multiplexing,简称CDM)。如果通信和感知沿用CDM方式进行复用,UE同一时间只能进行一种类型的业务,在进行对时延敏感的业务时显然是不利的。例如若通信业务对时延比较敏感,而接下来一段时间UE被配置进行感知业务,则很有可能等到感知业务完成时通信业务已经超时导致用户无法正确享受通信业务提供的服务。如果通信和感知采用CDM,在UE侧的实现成本较高,整体方案的实现复杂度也较大。
因此,采用FDM进行通信和感知是一种较优的解决方案,而现阶段尚缺乏合适的处理机制来实现通信和感知的FDM。
为解决上述技术问题,本公开实施例提供一种通信方法,包括:网络设备向UE发送配置信息,相应的,UE接收配置信息,配置信息用于配置第一频域资源和第二频域资源,第一频域资源用于感知,第二频域资源用于通信;UE使用第一频域资源发送感知信号,相应的,网络设备接收回波信号,回波信号与经由第一频域资源发送的感知信号相关联;UE使用第二频域资源与网络设备进行通信。
由此,通过本公开方案能够实现通信和感知的频分复用,使得UE能够并行地进行通信业务和感知业务,提高业务处理效率。具体而言,通过配置信息为UE分配频分复用的第一频域资源和第二频域资源,第一频域资源和第二频域资源可以对应相同的时间单元,从而UE可以在同一时间单元进行通信业务和感知业务。由此,感知业务和通信业务均能够及时得以实现,尤其对时延敏感的业务而言是有利的。
本公开实施例中的感知业务,是指具备感知功能的感知节点(也称,感知设备)对感知目标进行感知以获取感知目标相关信息的业务。感知业务可以应用于物联网领域。在一些实施例中,感知业务可以包括速度感知业务,用于对感知目标的移动速度进行估计。在另一些实施例中,感知业务可以包括距离感知业务,用于对感知目标的距离进行估计。感知业务属于通信感知一体化(简称通感一体化)系统的感知场景提供的服务。感知场景中,作为感知发起端(sensing initiator)的感知节点发送感知信号,作为感知接收端(sensing responder)的感知节点接收感知信号作用至感知目标后产生的信号并对接收到的信号进行感知算法处理。针对处理后的感知结果,可以通过上行信道汇报给基站或者感知功能(sensing function,SF),也可以供接收到信号的感知节点自己使用,还可以供其他UE使用。感知功能可以是核心网的网元。感知节点可以为UE,也可以为网络设备。
对于单站感知模式,感知发起端和感知接收端是同一感知节点,也即感知节点自己发送感知信号并接收感知信号作用至感知目标后返回的信号。单站感知模式中感知接收端接收到的信号记作回波信号。采用单站感知模式的感知类型可以包括UE自发自收和网络设备自发自收。
对于双站感知模式,感知发起端和感知接收端可以是不同感知节点,也即,感知节点A发感知信号,感知节点B接收感知信号作用至感知目标后产生的信号。双站感知模式中感知接收端接收到的信号通常称作接收信号,本实施例中为便于表述,将单站和双站感知模式中感知接收端接收到的信号统称为回波信号。采用双站感知模式的感知类型可以包括:网络设备发送UE接收、网络设备a发送网络设备b接收、UE发送网络设备接收,以及UEa发送UEb接收。为便于表述,本实施方案中将感知发起端记作a端,感知接收端记作b端。在一些实施例中,对于a发b收的感知方式,a端也可以收到感知回波信号,也即,此时感知发起端在进行双站感知模式的同时还可以进行单站感知模式。
为使本公开的上述目的、特征和有益效果能够更为明显易懂,下面结合附图对本公开的具体实施例做详细的说明。
图1是本公开第一实施例一种通信方法的流程图。
本实施方案可以应用于UE与网络设备之间既有通信业务,又有感知业务的应用场景。
在具体实施例中,下述步骤S101~步骤S103所提供的通信方法可以由UE中的具有通信功能的芯片执行,也可以由UE中的基带芯片执行。在本具体实施中,UE在感知场景中可以作为感知发起端。
具体地,参考图1,本实施方案通信方法可以包括如下步骤:
步骤S101,接收配置信息,配置信息用于配置第一频域资源和第二频域资源,第一频域资源用于感知,第二频域资源用于通信;
步骤S102,使用第一频域资源发送感知信号;
步骤S103,使用第二频域资源进行通信。
步骤S102和步骤S103可以是并行执行的。两个步骤可以同时执行,也可以先后执行(例如,下述图7和图8所示实施例在第一频域资源和第二频域资源之间切换以依次进行通信和感知的情形)。
更为具体地,参考图2,可供网络设备配置的总资源按频域划分为用于通信的第二频域资源以及用于感知的第一频域资源。也就是说,用于感知的信号或信号,与用于通信的信号或信道频分复用。
第二频域资源例如可以包括,用于传输数据(data)的频域资源、用于传输物理上行控制信道(Physical Uplink Control Channel,简称PUCCH)的频域资源、用于传输物理下行共享信道(Physical Downlink Shared Channel,简称PDSCH)的频域资源等。
在第一频域资源上可以传输的信息类型可以包括,用于感知的感知参考信号,或者基于感知参考信号测量得到的感知结果信息,还可以包括UE和网络设备之间建立链路的高层信令等。
本应用场景中,用于通信的资源和用于感知的资源频分复用,例如,总资源在频域上一共占据若干个子载波,将其中n个(n>0)子载波分配给第一频域资源,剩下的可以全部或者部分分配给第二频域资源。进一步,第一频域资源和第二频域资源可以对应相同的时域资源。由此,通信业务和感知业务能够同时进行。
在一些实施例中,感知信号可以包括感知参考信号,也即用于感知的参考信号,如信道状态信息参考信号(Channel State Information-Reference Signal,简称CSI-RS)、定位参考信号(Positioning reference signal,简称PRS)、探测参考信号(Sounding Reference Signal,简称SRS)。
进一步,与通信频分复用的还可以例如是回波信号,其中携带有针对感知目标的感知信息(即,感知结果)。
进一步,与通信频分复用的还可以例如是测量报告,测量报告基于回波信号处理得到。
在一些实施例中,可以通过信道的形式携带感知信号。在本示例中,感知信号可以称为感知信道,即用于感知的信道。
本申请提及的信息可以由网络侧通过高层信令(如无线资源控制(Radio Resource Control,简称RRC))进行配置。或者可以通过下行控制信息(Downlink Control Information,简称DCI)或者媒体访问控制层控制单元(Medium Access Control-Control Element,简称MAC-CE)来承载信息。
总的来说,感知和通信的频域复用方式可以按照载波单元(Carrier component,简称CC)级别(CC-level),部分带宽(Bandwidth Part,简称BWP)级别(BWP-level)和BWP内级别(inner-BWP-level)三个层级进行划分。接下来对三个层级的具体实现进行详细阐述。
在一个具体实施方式中,对于CC-level情况下通信和感知的频分复用,第一频域资源和第二频域资源中的任一频域资源可以包括载波。
具体而言,配置信息可以包括第一信息,用于配置至少一个载波。例如,配置信息可以包括下列信息至少之一:各载波的索引、各载波在频域上的频段、各载波对应的预设最大发射功率等参数。预设最大发射功率是指UE在服务小区c、载波f上配置的最大允许发射功率。
进一步,配置信息还可以包括指示信息,用于指示至少一个载波与感知的关联关系。
例如,可以通过1比特指示,以使能或去使能对应的载波是否具备感知功能。假设载波1(CC-1)对应的指示信息赋值为0,表明该载波1不具备感知功能,也即载波1属于第二频域资源用于通信。假设载波2(CC-2)对应的指示信息赋值为1,表明该载波2具备感知功能,也即载波2属于第一频域资源用于感知。
由此,第一频域资源和第二频域资源可以从同一个载波组中选取得到,网络侧无需预先为不同类型的业务分别配置对应的载波组,有利于提高资源利用率。
在一个具体实施方式中,可以引入用于感知的载波组的概念,也即,预先配置和划分用于感知的载波组(记作,第一载波组)和/或用于通信的载波组(记作,第二载波组)。可以存在多个第一载波组,也可以存在多个第二载波组。对于第一载波组和第二载波组中的任一载波组,单个载波组中可以包括至少一个载波。
相应的,配置信息中配置的至少一个载波组可以选自至少一个第一载波组和至少一个第二载波组。
例如,参考图3,第一载波组可以包括载波1(CC-1)、载波2(CC-2)和载波3(CC-3),各载波在时域上的传输方向如图所示,D-S表示用于感知的下行传输时隙、X表示灵活时隙(flexible slot)或者灵活符号(flexible symbol)、U-S表示用于感知的上行传输时隙。
继续参考图3,第二载波组可以包括载波4(CC-4)、载波5(CC-5)和载波6(CC-6),各载波在时域上的传输方向如图所示,D表示下行、X表示灵活、U表示上行。
进一步,配置信息可以从第一载波组和第二载波组中各选取至少一个载波或者一个载波组配置给UE。例如,假设配置信息包括索引1和5,表明UE被配置了CC-1用于感知、CC-5用于通信,相应的,CC-1即为第一频域资源,CC-5即为第二频域资源。又例如,配置信息包括索引1、3和5,表明UE被配置了CC-1和CC-3用于感知、CC-5用于通信,相应的,CC-1和CC-3即为第一频域资源,CC-5即为第二频域资源。
在一些实施例中,各载波可以有对应的预设最大发射功率。例如,CC-1、CC-2和CC-3分别对应用于感知的预设最大发射功率Ps-cmax,f,c,CC-4、CC-5和CC-6分别对应预设最大发射功率Pcmax,f,c。三个Ps-cmax,f,c的具体数值可以相同也可以不同,类似的,三个Pcmax,f,c的具体数值可以相同也可以不同。
网络侧可以通过高层信令,配置每个用于感知的载波各自对应的预设最大发射功率的上界值和下界值。也即,UE在使用配置的载波发送感知信号时的预设最大发射功率可以任意取值自高层信令配置的预设数值区间=[上界值,下界值]。类似的,网络设备还可以通过高层信令配置每个用于通信的载波各自对应的预设最大发射功率的上界值和下界值。
进一步,对于配置信息所配置的至少一个载波中的每一载波,使用载波发送感知信号或进行通信的发射功率不大于载波对应的预设最大发射功率。例如,UE使用CC-1发送感知信号的发射功率,不能大于CC-1对应的Ps-cmax,f,c。又例如,UE使用CC-4进行通信的发射功率,需要小于等于CC-4对应的Pcmax,f,c。
进一步,使用第一频域资源发送感知信号的发射功率和使用第二频域资源进行通信的发射功率之和,不大于预设总最大发射功率(记作Pcmax)。仍以配置信息包括索引1、3和5为了,UE使用CC-1发送感知信号的发射功率使用CC-3发送感知信号的发射功率以及使用CC-5进行通信的发射功率三者之和,不能大于Pcmax。
进一步,Pcmax也可以通过配置信息配置给UE。
由此,用于感知的载波组和用于通信的载波组各自有对应的最大发射功率(即,预设最大发射功率),然后合在一起又有同一个更大的功率约束(即,预设总最大发射功率)。这有利于在通信和感知频分复用时合理确定两种业务之间的功率分配。
在一些实施例中,在功率受限的情况下,也即,使用第一频域资源发送感知信号的发射功率和使用第二频域资源进行通信的发射功率之和,超过了预设总最大发射功率,则可以采用感知优先(或通信优先)的方式优先将发射功率分配给感知业务(或通信业务)。
具体而言,可以通过协议规定在功率受限时以感知优先还是通信优先的方式进行功率分配。此时,优先级排序靠后的通信或感知业务对应的频域资源上的发射功率被限制。
在一些实施例中,第一载波组中的载波和第二载波组中的载波可以存在交叉,也就是说,一个载波可以既用于通信又用于感知。配置信息可以指示(例如通过前述1比特的指示信息指示)该载波本次所服务的业务。在本示例中,同一载波可以配置两个预设最大发射功率。
具体而言,载波对应的预设最大发射功率可以包括第一功率和第二功率,第一功率和感知相关联,第二功率和通信相关联。换言之,同一载波可以既被配置Ps-cmax,f,c,又被配置Pcmax,f,c。
进一步,根据当前时刻该载波具体传输的信号/信道/数据类型确定该载波对应的预设最大发射功率。
例如,参考图4,网络设备可以预先(例如,通过高层信令)配置三个载波组:第一载波组1、第一载波组2和第二载波组,其中,第一载波组1包括CC-1、CC-2和CC-3,第一载波组2包括CC-4和CC-7,第二载波组包括CC-4、CC-5和CC-6。可见,第一载波组2和第二载波组共用CC-4。
进一步,CC-4可以被配置第一功率Ps-cmax,f,c和第二功率Pcmax,f,c。假设配置信息指示第一频域资源包括CC-4和CC-1,第二频域资源包括CC-5和CC-6,则UE确定使用CC-4发送感知信号时以CC-4对应的第一功率Ps-cmax,f,c作为功率分配约束条件。
在一些实施例中,配置信息可以指示第一频域资源和第二频域资源均包括CC-4,UE可以根据当前时刻实际使用CC-4进行的业务类型确定以第一功率Ps-cmax,f,c和第二功率Pcmax,f,c作为功率分配约束条件。例如,假设根据网络设备的调度,UE在时刻t1使用CC-4发送感知信号,则UE确定在时刻t1以CC-4对应的第一功率Ps-cmax,f,c作为功率分配约束条件。又例如,假设随着网络设备的进一步调度,UE在时刻t2使用CC-4与网络设备进行下行数据接收,则UE确定在时刻t2以CC-4对应的第二功率Pcmax,f,c作为功率分配约束条件。
在另一些实施例中,第一载波组和第二载波组中的载波可以没有交集,也即每个载波固定地服务于单一业务,如图3所示。
在另一些实施例中,Ps-cmax,f,c的数值可以等于Pcmax,f,c的数值。此时,网络侧可以不需要额外配置Ps-cmax,f,c的具体数值。
在另一些实施例中,Ps-cmax,f,c的上界值可以等于Pcmax,f,c的上界值,和或Ps-cmax,f,c的下界值可以等于Pcmax,f,c的下界值。
在一个具体实施方式中,对于BWP-level情况下通信和感知的频分复用,第一频域资源可以包括第一BWP,第二频域资源可以包括第二BWP。第二BWP是独立于第一BWP的BWP,换言之,可以配置独立的BWP用于感知。
具体而言,配置信息可以包括第二信息,至少用于配置第二BWP。
在一些实施例中,可以通过在一个载波内配置1个激活BWP用于感知用途。可选的,一个载波内可以同时有2个激活BWP,一个用于感知,另一个用于通信。其中,2个激活BWP可以是用于感知的初始BWP和用于通信的初始BWP,或者也可以是用于感知的非初始BWP和用于通信的非初始BWP。
在一些实施例中,可以在配置信息中新增初始第二BWP的相关参数信息,具体的参数类型和内容可以参考现有通信协议中关于BWP的配置规定。
例如,可以在下行公共配置信息元素(DownlinkConfigCommon information element)中增加用于感知的初始下行BWP(initialDownlinkBWPforsensing)参数,以配置初始的第二BWP的相关信息。初始的第二BWP是指默认激活的第二BWP,也即初始激活的用于感知的BWP。
又例如,可以在服务小区配置信息元素(ServingCellConfig information element)中增加针对释放列表的用于感知的下行BWP(downlinkBWPforsensing-ToReleaseList)参数,以及,针对添加修改列表的用于感知的下行BWP(downlinkBWPforsensing-ToAddModList)参数,以配置可供UE切换的候选的第二BWP的相关信息。可选的,UE可以根据网络设备发送的切换指令,从当前激活的第二BWP切换至候选的第二BWP,候选的第二BWP相应的成为激活BWP。
进一步,第二信息还可以用于配置第一BWP。例如,可以通过DownlinkConfigCommon information element中的初始下行BWP(initialDownlinkBWP)参数配置初始的第一BWP。初始的第一BWP是指默认激活的第一BWP,也即初始激活的用于通信的BWP。
又例如,可以通过ServingCellConfig information element中的针对释放列表的下行BWP(downlinkBWP-ToReleaseList)参数,以及,针对添加修改列表的下行BWP(downlinkBWP-ToAddModList)参数,配置一个或多个候选的第二BWP。
在一些实施例中,配置信息还可以包括第三信息,用于激活第一BWP和/或第二BWP。第三信息可以例如是前述切换指令,用于在多个候选的第一BWP中切换激活的第一BWP,类似的,第三信息可以用于在多个候选的第二BWP中切换激活的第二BWP。
例如,第三信息可以承载于RRC或DCI或者MAC-CE。
在一些实施例中,第一BWP和/或第二BWP的激活状态也可以是响应于定时器到期而进行切换的。
在一个具体实施方式中,第一BWP和第二BWP可以属于同一载波,并且,第一BWP和第二BWP均为激活BWP。换言之,UE在一个CC上可以同时有2个激活BWP。
例如,假设一个载波里配置了4个BWP,现有技术同一时间只能有一个激活BWP,而采用本实施方案,在一个CC里可以配置2个BWP用于通信,2个BWP用于感知,并且同一时间有两个激活BWP。其中一个激活BWP用于通信,另一个激活BWP用于感知。
进一步,第一BWP和第二BWP采用相同的双工方式。也就是说,第一BWP和第二BWP的双工方式根据两者共同所属的频带(band)层级的配置结果确定。
在一些实施例中,频带层级可以采用时分双工(Time Division Duplexing,简称TDD)方式进行配置(例如,资源配置),则频带内所有载波的所有BWP均为TDD。可选的,一个载波内的第一BWP和第二BWP的TDD时隙结构可以完全一致。
参考图5,CC-1包括BWP-1和BWP-2,其中,BWP-1为第一BWP,BWP-2为第二BWP。进一步,BWP-1和BWP-2均采用TDD方式进行感知或通信。进一步,BWP-1和BWP-2均为激活BWP。图5中,BWP-1和BWP-2同是TDD,其中,时刻t0至时刻t1的传输方向为下行,时刻t1至时刻t2的传输方向为灵活,时刻t2至时刻t3的传输方向为上行。时刻t0至时刻t1的时间长度可以包括两个时隙,也可以包括两个符号。相应的,UE在时刻t0至时刻t1可以经由BWP-1接收回波信号,经由BWP-2进行下行接收。UE在时刻t2至时刻t3经由BWP-1发送感知信号,经由BWP-2进行上行发送。
进一步,TDD模式下,第一BWP和第二BWP的传输方向可以相同,如图5所示。此时,感知信号的发送方向和通信方向一致。例如,可以通过一个tdd-上行/下行公共配置(tdd-UL/DL-ConfigurationCommon)信令同时指示第一BWP和第二BWP的时隙格式配置情况。
或者,TDD模式下,第一BWP和第二BWP的传输方向可以不相同。例如,图5中时刻t0至时刻t1期间,BWP-1的传输方向为上行,BWP-2的传输方向为下行。在一些实施例中,可以通过两个tdd-上行/下行公共配置(tdd-UL/DL-ConfigurationCommon)信令分别配置第一BWP和第二BWP的时隙结构。例如,tdd-UL/DL-ConfigurationCommon用于配置第二BWP的时隙结构,tdd-UL/DL-ConfigurationCommon2用于配置第一BWP的时隙结构。
在另一些实施例中,频带层级配置采用频分双工(Frequency Division Duplexing,简称FDD)方式进行配置,则频带内所有载波的所有BWP均为FDD。
具体而言,参考图6,频带层级的FDD配置包括纯上行频带,例如CC-1中的BWP-1和BWP-2,前者为第一BWP后者为第二BWP。进一步,频带层级的FDD配置还包括纯下行频带,例如CC-2中的BWP-1和BWP-2,前者为第一BWP后者为第二BWP。
进一步,步骤S101中的配置信息可以选取CC-1和CC-2中的BWP组合得到。例如,配置信息可以指示CC-1的BWP-1和CC-2的BWP-2,相应的,UE可以经由CC-1的BWP-1接收感知信号或者网络设备可以经由CC-1的BWP-1接收回波信号、经由CC-2的BWP-2进行上行通信。又例如,配置信息可以指示CC-1的BWP-1和BWP-2,相应的,网络设备经由CC-1的BWP-1接收回波信号、经由CC-1的BWP-2进行下行通信。
由此,可以实现业务处理效率最大化,即同一时间UE可以在两个激活的BWP上分别进行感知业务和通信业务。
在一个具体实施方式中,第一BWP和第二BWP属于同一载波,并且,第一BWP和第二BWP可以交替地切换为激活BWP。也就是说,虽然在载波中配置独立的BWP专用于感知,但UE在一个CC上同一时刻还是最多有1个激活BWP,通过切换的形式进行感知业务。由此,UE准备一套BWP的射频资源即可频分复用地实现感知和通信业务,实现成本低。
对于通过诸如动态调度触发的感知业务,在步骤S101之后、步骤S102之前,本实施方案通信方法还可以包括步骤:接收感知触发信息,感知触发信息可以用于触发感知信号的发送或者用于指示切换到第一BWP。
例如,UE可以默认在第二BWP上进行通信,响应于接收到感知触发信息,UE可以默认切换到第一BWP以进行感知。
在一些实施例中,感知触发信息可以承载于DCI或者MAC-CE或者RRC信令。
在一些实施例中,配置信息可以用于配置多个候选BWP,多个候选BWP均用于感知。不同的候选BWP可以用于进行不同的感知,如感知业务的具体细分类别不同、需求不同等可以分别配置对应的候选BWP。
进一步,感知触发信息还可以用于指示目标BWP作为第一BWP,目标BWP选自多个候选BWP。
进一步,感知触发信息可以携带BWP的索引(BWP-ID),UE将该索引对应的候选BWP确定为第一BWP。例如,参考图7,假设配置信息配置了4个BWP,其中BWP-2为第二BWP,BWP-1、BWP-3和BWP-4均用于感知(即这三个BWP均为候选BWP),DCI携带的BWP-ID为1,则UE确定需要切换至BWP-1上发送感知信号。此时,BWP-1即为第一BWP。
进一步,继续参考图7,响应于在BWP-1上的感知业务完成,UE可以主动切换回BWP-2以继续进行通信业务。图7中,虚线表示该处资源未被实际使用。
对于周期性或者办持续的感知业务,UE可以周期性地在第一BWP和第二BWP之间切换以周期性或办持续地发送感知信号,如图8所示。
具体而言,由于UE预先知道接下来需要切换至另一业务关联的BWP,因而在该业务的信号/信道/数据实际发送之前一段时间UE就可以开始准确切换,这段提前准备的时间也可称作准备时间。在准备时间内,UE可以准备需要切换过去的BWP上需要传输的信号/信道/数据等,以便在切换过去后立即开始信号/信道/数据的传输。在一些实施例中,准备时间的具体数值可以参考现有BWP切换相关协议中规定的数值。在实际应用中,也可以根据需要对前述数值进行调整合理确定准备时间的用时。
例如,参考图8,配置信息配置BWP-1为第一BWP,BWP-2为第二BWP,并配置UE周期性的进行感知信号的发送。则UE可以周期性地在BWP-2和BWP-1之间切换以分别进行通信业务和感知业务。
在一个典型的应用场景中,继续参考图8,假设UE采用自发自收模式进行感知,UE在之前已经切换至BWP-1上发送感知信号并切换回BWP-2进行下行接收。则UE在下一个感知周期时从BWP-2切换至BWP-1,并经由BWP-1接收回波信号。响应于接收到回波信号,UE又周期性地切换回BWP-2进行上行发送。在上行发送期间,UE后台可以处理接收到的回波信号以获取感知结果,进而基于感知结果生成测量报告。进一步,在下一个感知周期到来时UE可以从BWP-2切换至BWP-1,并经由BWP-1向网络设备上报测量报告。
在一个具体实施方式中,响应于使用第二BWP进行通信的时间段和使用第一BWP发送感知信号的时间段存在重叠(overlapping),UE可以根据通信和感知的优先级排序判断是否切换激活BWP。
具体而言,虽然存在重叠的时间段时UE可以在两个BWP上同时并发、同时并收、并发并收,但考虑到仍会存在一定干扰,因而优选地保证其中一个BWP上的业务顺利进行。
进一步,使用第一BWP发送感知信号的时间段可以包括实际传输时长和/或头尾BWP切换的准备时间(retuning time)。
响应于切换后BWP上传输的信号或信道的优先级高于与之同时传输(overlapping)的切换前BWP上传输的信号或信道的优先级,确定切换激活BWP。
响应于切换后BWP上传输的信号或信道的优先级低于与之同时传输的切换前BWP上传输的信号或信道的优先级,确定不切换激活BWP。
在一些实施例中,可以预先定义控制信令、同步信令的优先级高于感知信号。控制信令可以例如是物理随机接入信道(Physical Random Access Channel,简称PRACH)、物理下行控制信道(Physical Downlink Control Channel,简称PDCCH)、物理上行控制信道(Physical Uplink Control Channel,简称PUCCH)。同步信令可以例如是同步信号块(Synchronization Signal/Physical Broadcast Channel Block,简称SS/PBCH BLOCK,也即,SSB)。
假设UE当前在BWP-2上接收SSB,参考图8,如果SSB的接收在t0时刻结束,则进行通信的时间段和发送感知信号的时间段刚好不重叠,此时无需进行优先级比较,UE可以在t0时刻开始准备切换并在t1时刻切换至BWP-1进行感知业务。
如果SSB的结束时间位于t0时刻以后,则将存在重叠的时间段,此时需要进行优先级比较。由于SSB的优先级高于感知信号,因而UE仍保持在BWP-2不进行BWP切换。如果SSB的接收在t2时刻之前结束并且UE未进行其他通信,则到了t2时刻不存在重叠的时间段,此时UE可以开始准备切换并在t3时刻切换至BWP-1进行感知业务。
在一个具体实施方式中,对于inner-BWP-level情况下的通信和感知的频分复用,第一频域资源可以包括第一子带,第二频域资源可以包括第二子带。
具体而言,配置信息可以包括第四信息,用于配置第一子带和第二子带。进一步,第一子带和第二子带属于同一BWP。例如,第四信息可以包含有第一子带和/或第二子带的如下参数至少之一:子带起始频域位置、子带结束频域位置、子带带宽等。
在一些实施例中,第一子带和第二子带的传输方向可以相同。例如,参考图9,BWP-1包括子带-1(subband-1)和子带-2(subband-2),两者的时隙格式均为DXU,其中子带-1被配置为第一子带,子带-2被配置为第二子带。
本示例可以适用于非子带全双工(subband full duplex,简称SBFD)场景。
进一步,UE同一时刻在第一子带和第二子带上各自的发送功率之和,不超过这两个子带对应的预设最大发射功率。预设最大发射功率为第一子带和第二子带所属BWP所属载波对应的预设最大发射功率。
响应于在第一子带的发送功率和第二子带的发送功率之和大于对应的预设最大发射功率,可以按照业务优先级限制其中一个子带的发送功率。例如,若通信业务的优先级更高,则可以限制第一子带的发送功率,即优先分配第二子带的发射功率。或者,若感知业务的优先级更高,则可以限制第二子带的发送功率,即优先分配第一子带的发射功率。
在一些实施例中,第一子带和第二子带在至少一个时间单元的传输方向不相同。
具体而言,实际配置时分配给通信的资源的波束方向和配置给感知的资源的波束方向可以不一样,例如,在第一子带发送感知信号的波束方向不同于在第二子带进行通信的波束方向。
此时,可以通过协议规定当出现波束方向不一致的情况时跟从(follow)其中某一子带的波束方向。例如,如果规定通信波束优先,则第一子带跟从第二子带的波束方向发送感知信号。又例如,如果规定感知波束优先,则第二子带沿用第一子带的波束方向进行通信。
在一些实施例中,在SBFD场景中,第一子带和第二子带在至少一个时间单元的传输方向不相同。此时,在各子带上按各自配置的传输方向进行传输。
具体而言,可以独立配置一些子带专用于感知。相应的,配置信息可以包括:第五信息,用于指示一个或多个用于SBFD的子带为第一子带。
例如,在配置用于SBFD的一个或多个子带或,通过第五信息额外指示其中的一个或多个SBFD子带用于感知。
以图10中标号(a)的视图为例,BWP-1在频域上不交叠地划分得到两个下行子带(子带-1和子带-3)以及一个上行子带(子带-2),第五信息进一步指示其中的子带-3为第一子带。
以图10中标号(b)的视图为例,BWP-2在频域上不交叠地划分得到两个下行子带(子带-1和子带-3)以及一个上行子带(子带-2),第五信息进一步指示其中的子带-3和子带-2均为为第一子带。
在一个具体实施方式中,第一频域资源的子载波间隔(SubCarrier Spacing,简称SCS)和第二频域资源的SCS可以独立配置。也就是说,第一频域资源的SCS和第二频域资源的SCS可以相同,如图4中的第一载波组2以及图10中标号(b)所示示例。或者,第一频域资源的SCS和第二频域资源的SCS也可以不相同,如图3、图4中的第一载波组1、图5、图7、图9以及图10中标号(a)所示示例。
在一个具体实施方式中,UE在作为感知发起端的同时还可以作为感知接收端,接收经由第一频域资源发送的感知信号(例如感知参考信号)作用至感知目标后产生的回波信号,并基于回波信号处理得到感知结果。基于感知结果可以生成测量报告。进一步,UE可以使用第一频域资源发送测量报告。
在一个具体实施方式中,在步骤S101之前/之后/同时,本实施方案通信方法还可以包括步骤:接收第六信息,用于指示预设周期内的若干个连续的时间单元用于感知。时间单元可以为UE和网络设备在时域上的通信粒度。例如,时间单元可以为时隙、微时隙(Mini-slot,即比时隙更短的时长单位)、子帧、符号、帧等。同一时间单元是指相同的时间单元。例如,网络侧可以在预定义的一段周期时间之内规定若干个连续的时隙用做感知用途。
具体而言,时隙的感知用途可以是网络设备发送感知信号,也可以是UE发送感知信号,或者是既可以是用做网络设备发送感知信号也可以是用做UE发送感知信号。
可选的,若干个连续的时隙可以是预先定义的位置,例如在预设周期的开始若干连续时隙,或者预设周期的末尾若干连续时隙,或者是由网络侧通过高层信令配置的时隙位置,例如通过比特位图来配置用做感知的时隙的具体时隙位置。比特位图中的每个比特对应预设周期内的1个时隙,配置为0表示该时隙不可以用做感知,配置为1表示该时隙可以用做感知。
例如,在2个无线帧(radio frame)的周期时间内,总共有20个时隙,可以规定其中4个时隙可以用做感知用途。其中,这4个时隙的具体位置可以通过预定义的方式确定,例如在20个时隙的前4个时隙,或者在20个时隙的后4个时隙,或者是其他预定义的位置。又或者,4个时隙的具体位置可以由网络侧通过高层信令配置得到。上述时隙结构在时域上周期性出现。
在一些实施例中,响应于接收到配置信息和第六信息,UE和/或网络设备可以在第六信息指示的预设周期内的若干个连续的时间单元上,使用第一频域资源发送感知信号。
在一个变化例中,第六信息可以用于指示预设周期内的若干个上行时间单元或者若干个下行时间单元用于感知。例如,网络侧可以在预定义的一段周期时间之内规定若干个的上行时隙或者下行时隙用做感知用途。
具体而言,上行时隙的感知用途可以是网络设备发送感知信号,也可以是UE发送感知信号;下行时隙的感知用途可以是网络设备发送感知信号,也可以是UE发送感知信号。
可选的,若干个上行时隙可以是若干个连续的上行时隙,也可以是若干个不连续的上行时隙。若干个下行时隙可以是若干个连续的下行时隙,也可以是若干个不连续的下行时隙。
可选的,若干个上行时隙或者若干个下行时隙可以是预先定义的位置,例如在预设周期的开始若干个连续上行时隙或者下行时隙,或者预设周期的末尾若干个连续上行时隙或者下行时隙,或者是由网络侧通过高层信令配置的时隙位置,例如通过比特位图来配置上行时隙或者下行时隙的具体时隙位置,比特位图中的每个比特对应周期内的1个时隙,配置为0表示该时隙不可以用做感知,配置为1表示该时隙可以用做感知。
例如,在2个无线帧(radio frame)的时间内,总共有20个时隙,可以规定其中4个时隙可以用做感知用途。其中,这4个时隙的具体位置可以通过预定义的方式确定,例如,在20个时隙的前4个上行时隙,或者在20个时隙的后4个上行时隙,或者在20个时隙的前4个下行时隙,或者在20个时隙的后4个下行时隙,或者是其他预定义的位置。又或者,4个时隙的具体位置可以由网络侧通过高层信令配置得到。
在一些实施例中,响应于接收到配置信息和第六信息,UE和/或网络设备可以在第六信息指示的预设周期内的若干个上行时间单元或下行时间单元上,使用第一频域资源发送感知信号。
由上,采用本实施方案,能够实现通信和感知的频分复用,使得UE能够并行地进行通信业务和感知业务,提高业务处理效率。具体而言,通过配置信息为UE分配频分复用的第一频域资源和第二频域资源,第一频域资源和第二频域资源可以对应相同的时间单元,从而UE可以在同一时间单元进行通信业务和感知业务。由此,感知业务和通信业务均能够及时得以实现,尤其对时延敏感的业务而言是有利的。
图11是本公开第二实施例一种通信方法的流程图。
在具体实施例中,下述步骤S201~步骤S203所提供的通信方法可以由网络设备中的具有通信功能的芯片执行,也可以由网络设备中的基带芯片执行。网络设备可以例如是基站。
具体地,参考图11,本实施方案通信方法可以包括如下步骤:
步骤S201,发送配置信息,配置信息用于配置第一频域资源和第二频域资源,第一频域资源用于感知,第二频域资源用于通信;
步骤S202,接收回波信号,回波信号与经由第一频域资源发送的感知信号相关联;
步骤S203,使用第二频域资源进行通信。
本领域技术人员理解,步骤S201至步骤S203可以视为与上述图1至图10所示实施例步骤S101至步骤S103相呼应的执行步骤,两者在具体的实现原理和逻辑上是相辅相成的。因而,本实施例中涉及名词的解释可以参考图1至图10所示实施例的相关描述,这里不再赘述。
进一步,本具体实施中,UE为感知发起端,网络设备为感知接收端,因此UE执行步骤S102以经由第一频域资源发送感知信号后,网络设备执行步骤S202以接收感知信号作用至感知目标后产生的回波信号。
在UE自发自收的场景中,步骤S202可以被替换为:接收测量报告,测量报告由UE基于接收到的回波信号处理得到。
在一些实施例中,响应于配置信息配置了多个候选BWP,步骤S201之后,步骤S202之前,网络设备还可以执行步骤:发送感知触发信息,用于指示目标BWP作为第一BWP,目标BWP选自多个候选BWP。
由上,采用本实施方案,能够实现通信和感知的频分复用,提高通信效率。
图12是本公开第三实施例一种通信装置3的结构示意图。本领域技术人员理解,本实施例通信装置3可以用于实施上述图1至图10实施例中的方法技术方案。
具体地,参考图12,本实施方案通信装置3可以包括:接收模块31,用于接收配置信息,配置信息用于配置第一频域资源和第二频域资源,第一频域资源用于感知,第二频域资源用于通信;感知模块32,用于使用第一频域资源发送感知信号;通信模块33,用于使用第二频域资源进行通信。
关于通信装置3的工作原理、工作方式的更多内容,可以参照上述图1至图10中的相关描述,这里不再赘述。
在具体实施中,上述的通信装置3可以对应于UE中具有通信功能的芯片,或者对应于具有数据处理功能的芯片,例如片上系统(System-On-a-Chip,简称SOC)、基带芯片等;或者对应于UE中包括具有通信功能芯片的芯片模组;或者对应于具有数据处理功能芯片的芯片模组,或者对应于UE。
图13是本公开第四实施例一种通信装置4的结构示意图。本领域技术人员理解,本实施例通信装置4可以用于实施上述图11实施例中的方法技术方案。
具体地,参考图13,本实施例通信装置4可以包括:发送模块41,用于发送配置信息,配置信息用于配置第一频域资源和第二频域资源,第一频域资源用于感知,第二频域资源用于通信;感知模块42,用于接收回波信号,回波信号与经由第一频域资源发送的感知信号相关联;通信模块43,用于使用第二频域资源进行通信。
关于通信装置4的工作原理、工作方式的更多内容,可以参照上述图11中的相关描述,这里不再赘述。
在具体实施中,上述的通信装置4可以对应于网络设备中具有通信功能的芯片,或者对应于具有数据处理功能的芯片,例如片上系统(System-On-a-Chip,简称SOC)、基带芯片等;或者对应于网络设备中包括具有通信功能芯片的芯片模组;或者对应于具有数据处理功能芯片的芯片模组,或者对应于网络设备。
在具体实施中,关于上述实施例中描述的各个装置、产品包含的各个模块/单元,其可以是软件模块/单元,也可以是硬件模块/单元,或者也可以部分是软件模块/单元,部分是硬件模块/单元。
例如,对于应用于或集成于芯片的各个装置、产品,其包含的各个模块/单元可以都采用电路等硬件的方式实现,或者,至少部分模块/单元可以采用软件程序的方式实现,该软件程序运行于芯片内部集成的处理器,剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现;对于应用于或集成于芯片模组的各个装置、产品,其包含的各个模块/单元可以都采用电路等硬件的方式实现,不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中,或者,至少部分模块/单元可以采用软件程序的方式实现,该软件程序运行于芯片模组内部集成的处理器,剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现;对于应用于或集成于终端的各个装置、产品,其包含的各个模块/单元可以都采用电路等硬件的方式实现,不同的模块/单元可以位于终端内同一组件(例如,芯片、电路模块等)或者不同组件中,或者,至少部分模块/单元可以采用软件程序的方式实现,该软件程序运行于终端内部集成的处理器,剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
本公开实施例还提供了一种计算机可读存储介质,计算机可读存储介质为非易失性存储介质或非瞬态存储介质,其上存储有计算机程序,计算机程序被处理器运行时执行上述任一实施例提供的通信方法的步骤。优选地,存储介质可以包括诸如非挥发性(non-volatile)存储器或者非瞬态(non-transitory)存储器等计算机可读存储介质。存储介质可以包括ROM、RAM、磁盘或光盘等。
本公开实施例还提供了一种计算机程序产品,包括计算机程序/指令,该计算机程序/指令被处理器执行时实现上述任一实施例提供的通信方法的步骤。
本申请实施例还提供了另一种通信装置,包括存储器和处理器,存储器上存储有可在处理器上运行的计算机程序,处理器运行计算机程序时执行上述图3至图11对应实施例所提供的通信方法的步骤。通信装置可以集成于UE/网络设备,或者,通信装置可以例如是UE/网络设备。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指示相关的硬件来完成,该程序可以存储于一计算机可读存储介质中,存储介质可以包括:ROM、RAM、磁盘或光盘等。
本方明技术方案可适用于5G(5generation)通信系统,还可适用于4G、3G通信系统,还可适用于后续演进的各种通信系统,例如6G、7G等。
本方明技术方案也适用于不同的网络架构,包括但不限于中继网络架构、双链接架构,Vehicle-to-Everything(车辆到任何物体的通信)架构。
本申请实施例中的5G CN也可以称为新型核心网(new core)、或者5G NewCore、或者下一代核心网(next generation core,NGC)等。5G-CN独立于现有的核心网,例如演进型分组核心网(evolved packet core,EPC)而设置。
本申请实施例中的基站(base station,BS),也可称为基站设备,是一种部署在无线接入网用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(base transceiver station,BTS)和基站控制器(base station controller,BSC),3G网络中提供基站功能的设备包括节点B(NodeB)和无线网络控制器(radio network controller,RNC),在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB,eNB),在无线局域网络(wireless local area networks,WLAN)中,提供基站功能的设备为接入点(access point,AP),5G新无线(New Radio,NR)中的提供基站功能的设备包括继续演进的节点B(gNB),以及未来新的通信系统中提供基站功能的设备等。
本申请实施例中的用户设备(user equipment,UE)可以指各种形式的终端、接入终端、用户单元、用户站、移动站、移动台(mobile station,MS)、远方站、远程终端、移动设备、用户终端、终端设备(terminal equipment)、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备,未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network,PLMN)中的终端设备等,本申请实施例对此并不限定。
本申请实施例定义接入网到终端的单向通信链路为下行链路,在下行链路上传输的数据为下行数据,下行数据的传输方向称为下行方向;而终端到接入网的单向通信链路为上行链路,在上行链路上传输的数据为上行数据,上行数据的传输方向称为上行方向。
应理解,本文中术语“和/或”,仅仅是一种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这三种情况。另外,本文中字符“/”,表示前后关联对象是一种“或”的关系。
本申请实施例中出现的“多个”是指两个或两个以上。
本申请实施例中出现的第一、第二等描述,仅作示意与区分描述对象之用,没有次序之分,也不表示本申请实施例中对设备个数的特别限定,不能构成对本申请实施例的任何限制。
本申请实施例中出现的“连接”是指直接连接或者间接连接等各种连接方式,以实现设备间的通信,本申请实施例对此不做任何限定。本申请实施例中出现的“网络”与“系统”表达的是同一概念,通信系统即为通信网络。
应理解,本申请实施例中,处理器可以为中央处理单元(central processing unit,简称CPU),该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor,简称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、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的随机存取存储器(random access memory,RAM)可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。
上述实施例,可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时,上述实施例可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行计算机指令或计算机程序时,全部或部分地产生按照本申请实施例的流程或功能。计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。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包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质。半导体介质可以是固态硬盘。
应理解,在本申请的各种实施例中,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,而不应对本申请实施例的实施过程构成任何限定。
在本申请所提供的几个实施例中,应该理解到,所揭露的方法、装置和系统,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,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耦合或直接耦合或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。
作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。另外,在本申请各个实施例中的各功能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包括,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元,可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例方法的部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
虽然本公开披露如上,但本公开并非限定于此。任何本领域技术人员,在不脱离本公开的精神和范围内,均可作各种更动与修改,因此本公开的保护范围应当以权利要求所限定的范围为准。
Claims (31)
- 一种通信方法,其中,包括:接收配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;使用所述第一频域资源发送感知信号;使用所述第二频域资源进行通信。
- 根据权利要求1所述的通信方法,其中,对于所述第一频域资源和所述第二频域资源中任一频域资源,所述频域资源包括载波,所述配置信息包括:第一信息,用于配置至少一个载波;指示信息,用于指示所述至少一个载波与感知的关联关系。
- 根据权利要求2所述的通信方法,其中,所述至少一个载波选自至少一个第一载波组和至少一个第二载波组,所述第一载波组中的载波用于感知,所述第二载波组中的载波用于通信。
- 根据权利要求2或3所述的通信方法,其中,对于所述至少一个载波中的每一载波,使用所述载波发送感知信号或进行通信的发射功率不大于所述载波对应的预设最大发射功率。
- 根据权利要求4所述的通信方法,其中,所述载波对应的预设最大发射功率包括第一功率和第二功率,所述第一功率和感知相关联,所述第二功率和通信相关联。
- 根据权利要求4或5所述的通信方法,其中,所述载波对应的预设最大发射功率选取自预设数值区间,所述预设数值区间的上界值和下界值通过高层信令配置。
- 根据权利要求1至6中任一项所述的通信方法,其中,使用所述第一频域资源发送感知信号的发射功率和使用所述第二频域资源进行通信的发射功率之和,不大于预设总最大发射功率。
- 根据权利要求1至7中任一项所述的通信方法,其中,所述第一频域资源包括第一部分带宽BWP,所述第二频域资源包括第二BWP,所述配置信息包括:第二信息,至少用于配置所述第二BWP。
- 根据权利要求8所述的通信方法,其中,所述第二信息还用于配置所述第一BWP。
- 根据权利要求8或9所述的通信方法,其中,所述配置信息还包括:第三信息,用于激活所述第一BWP和/或所述第二BWP。
- 根据权利要求8或9或10所述的通信方法,其中,所述第一BWP和所述第二BWP属于同一载波。
- 根据权利要求8至11中任一项所述的通信方法,其中,所述第一BWP和所述第二BWP均为激活BWP,和/或,所述第一BWP和所述第二BWP采用相同的双工方式。
- 根据权利要求8至12中任一项所述的通信方法,其中,所述第一BWP和所述第二BWP交替切换为激活BWP。
- 根据权利要求8至13中任一项所述的通信方法,其中,所述配置信息用于配置多个候选BWP,所述方法还包括:接收感知触发信息,用于指示目标BWP作为所述第一BWP,所述目标BWP选自所述多个候选BWP。
- 根据权利要求13所述的通信方法,其中,还包括:响应于使用所述第二BWP进行通信的时间段和使用所述第一BWP发送感知信号的时间段存在重叠,根据通信和感知的优先级排序判断是否切换激活BWP;响应于切换后BWP上传输的信号或信道的优先级高于与之同时传输的切换前BWP上传输的信号或信道的优先级,确定切换激活BWP;响应于切换后BWP上传输的信号或信道的优先级低于与之同时传输的切换前BWP上传输的信号或信道的优先级,确定不切换激活BWP。
- 根据权利要求1至15中任一项所述的通信方法,其中,所述第一频域资源包括第一子带,所述第二频域资源包括第二子带,所述配置信息包括:第四信息,用于配置所述第一子带和所述第二子带。
- 根据权利要求16所述的通信方法,其中,所述第一子带和所述第二子带的传输方向相同,或者,所述第一子带和所述第二子带在至少一个时间单元的传输方向不相同。
- 根据权利要求16或17所述的通信方法,其中,所述配置信息还包括:第五信息,用于指示一个或多个用于子带全双工的子带为所述第一子带。
- 根据权利要求1至18中任一项所述的通信方法,其中,所述第一频域资源的子载波间隔和所述第二频域资源的子载波间隔独立配置。
- 根据权利要求1至19中任一项所述的通信方法,其中,还包括:接收第六信息,所述第六信息用于指示预设周期内的若干个连续的时间单元用于感知,或者,所述第六信息用于指示预设周期内的若干个上行时间单元或者若干个下行时间单元用于感知。
- 一种通信方法,其中,包括:发送配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;接收回波信号,所述回波信号与经由所述第一频域资源发送的感知信号相关联;使用所述第二频域资源进行通信。
- 根据权利要求21所述的通信方法,其中,所述第一频域资源包括第一部分带宽BWP,所述第二频域资源包括第二BWP,所述配置信息包括:第二信息,用于配置所述第一BWP和所述第二BWP中的至少一个。
- 根据权利要求22所述的通信方法,其中,所述第一BWP和所述第二BWP交替切换为激活BWP。
- 根据权利要求22或23所述的通信方法,其中,所述配置信息用于配置多个候选BWP,所述方法还包括:发送感知触发信息,用于指示目标BWP作为所述第一BWP,所述目标BWP选自所述多个候选BWP。
- 根据权利要求23所述的通信方法,其中,还包括:响应于使用所述第二BWP进行通信的时间段和使用所述第一BWP发送感知信号的时间段存在重叠,根据通信和感知的优先级排序判断是否切换激活BWP;响应于切换后BWP上传输的信号或信道的优先级高于与之同时传输的切换前BWP上传输的信号或信道的优先级,确定切换激活BWP;响应于切换后BWP上传输的信号或信道的优先级低于与之同时传输的切换前BWP上传输的信号或信道的优先级,确定不切换激活BWP。
- 根据权利要求21至25中任一项所述通信方法,其中,还包括:发送第六信息,所述第六信息用于指示预设周期内的若干个连续的时间单元用于感知,或者,所述第六信息用于指示预设周期内的若干个上行时间单元或者若干个下行时间单元用于感知。
- 一种通信装置,其中,包括:接收模块,用于接收配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;感知模块,用于使用所述第一频域资源发送感知信号;通信模块,用于使用所述第二频域资源进行通信。
- 一种通信装置,其中,包括:发送模块,用于发送配置信息,所述配置信息用于配置第一频域资源和第二频域资源,所述第一频域资源用于感知,所述第二频域资源用于通信;感知模块,用于接收回波信号,所述回波信号与经由所述第一频域资源发送的感知信号相关联;通信模块,用于使用所述第二频域资源进行通信。
- 一种计算机可读存储介质,所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质,其上存储有计算机程序,其中,所述计算机程序被处理器运行时执行权利要求1至26中任一项所述方法的步骤。
- 一种计算机程序产品,包括计算机程序/指令,其中,该计算机程序/指令被处理器执行时实现权利要求1至26中任一项所述方法的步骤。
- 一种通信装置,包括存储器和处理器,所述存储器上存储有可在所述处理器上运行的计算机程序,其中,所述处理器运行所述计算机程序时执行权利要求1至26中任一项所述方法的步骤。
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