WO2025030331A1 - 一种无线通信方法及设备、存储介质 - Google Patents
一种无线通信方法及设备、存储介质 Download PDFInfo
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- WO2025030331A1 WO2025030331A1 PCT/CN2023/111557 CN2023111557W WO2025030331A1 WO 2025030331 A1 WO2025030331 A1 WO 2025030331A1 CN 2023111557 W CN2023111557 W CN 2023111557W WO 2025030331 A1 WO2025030331 A1 WO 2025030331A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/50—Service provisioning or reconfiguring
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
Definitions
- the embodiments of the present application relate to the field of mobile communication technology, and specifically to a wireless communication method and device, and a storage medium.
- a decellularized wireless access network refers to a network composed of a large number of distributed low-cost and low-power wireless access points (APs), where APs can perform simple physical layer functions such as wireless signal transmission and reception, channel estimation, downlink precoding, and uplink signal detection.
- APs can perform simple physical layer functions such as wireless signal transmission and reception, channel estimation, downlink precoding, and uplink signal detection.
- different APs are connected to one or more central control devices through backhaul links, and the central control devices can perform complex physical layer functions such as AP data distribution and merging, signal modulation and demodulation, and information bit encoding and decoding, so that all APs can jointly provide services to each terminal at the same time.
- complex physical layer functions such as AP data distribution and merging, signal modulation and demodulation, and information bit encoding and decoding
- Embodiments of the present application provide a wireless communication method and device, and a storage medium.
- a terminal device receives at least one first channel sent by a first access device set, wherein the first access device set includes at least one access device, and the at least one first channel sent by the first access device set is used to determine whether the first access device set is a target access device set, and the target access device set is used to communicate data with the terminal device.
- a first access device sends a first channel to a terminal device, the first access device belongs to a first access device set, the first access device set includes at least one access device, and at least one first channel sent by the first access device set is used to determine whether the first access device set is a target access device set, and the target access device set is used to communicate data with the terminal device.
- the first communication unit is configured to receive, as a terminal device, at least one first channel sent by a first access device set, wherein the first access device set includes at least one access device, and the at least one first channel sent by the first access device set is used to determine whether the first access device set is a target access device set, and the target access device set is used to communicate data with the terminal device.
- the second communication unit is configured to send a first channel to the terminal device, the first access device belongs to a first access device set, the first access device set includes at least one access device, and at least one first channel sent by the first access device set is used to determine whether the first access device set is a target access device set, and the target access device set is used to communicate data with the terminal device.
- the communication device provided in the embodiment of the present application may be a terminal device in the above solution or a first access point in the above solution, and the communication device includes a processor and a memory.
- the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the above wireless communication method.
- the chip provided in the embodiment of the present application is used to implement the above-mentioned wireless communication method.
- the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned wireless communication method.
- the computer-readable storage medium provided in the embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned wireless communication method.
- the computer program product provided in the embodiment of the present application includes computer program instructions, which enable a computer to execute the above-mentioned wireless communication method.
- the computer program provided in the embodiment of the present application when executed on a computer, enables the computer to execute the above-mentioned wireless communication method.
- the terminal device determines whether the first access device set is the target access device set for data communication with the terminal device based on at least one first channel sent by the received first access device set, thereby providing services for the terminal device based on the access device set, without all access devices providing services for the terminal device, thereby achieving better network scalability while reducing signaling overhead and computational complexity.
- FIG1 is a schematic diagram of an application scenario of an embodiment of the present application.
- FIG2 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.
- FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.
- FIG4 is a schematic diagram of an NTN scenario based on a transparent forwarding satellite provided in an embodiment of the present application
- FIG5 is a schematic diagram of an NTN scenario based on a regenerative forwarding satellite provided in an embodiment of the present application
- FIG6 is an optional structural diagram of a de-cellularized wireless access network according to an embodiment of the present application.
- FIG7 is an optional schematic flow chart of a wireless communication method according to an embodiment of the present application.
- FIG8 is an optional schematic flow chart of a wireless communication method according to an embodiment of the present application.
- FIG9 is an optional schematic flow chart of a wireless communication method according to an embodiment of the present application.
- FIG10 is an optional schematic flow chart of a wireless communication method according to an embodiment of the present application.
- FIG11 is a schematic diagram of an optional interaction flow of the first channel of an embodiment of the present application.
- FIG12 is a schematic diagram of an optional location of a third channel in an embodiment of the present application.
- FIG13 is an optional schematic flow chart of a wireless communication method according to an embodiment of the present application.
- FIG14 is a schematic diagram of an optional location of a fourth channel in an embodiment of the present application.
- FIG15 is a schematic diagram of an optional structure of a candidate AP set according to an embodiment of the present application.
- FIG16 is a schematic diagram of an optional structure of a terminal device according to an embodiment of the present application.
- FIG17 is an optional structural diagram of a first AP according to an embodiment of the present application.
- FIG18 is a schematic structural diagram of a communication device provided in an embodiment of the present application.
- FIG19 is a schematic structural diagram of a chip according to an embodiment of the present application.
- Figure 20 is a schematic block diagram of a communication system provided in an embodiment of the present application.
- FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
- the communication system 100 may include a terminal device 110 and a network device 120.
- the network device 120 may communicate with the terminal device 110 via an air interface.
- the terminal device 110 and the network device 120 support multi-service transmission.
- LTE Long Term Evolution
- TDD LTE Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- IoT Internet of Things
- NB-IoT Narrow Band Internet of Things
- eMTC enhanced Machine-Type Communications
- 5G fifth generation
- NR New Radio
- the network device 120 may be an access network device that communicates with the terminal device 110.
- the access network device may provide communication coverage for a specific geographic area, and may communicate with the terminal device 110 (e.g., user equipment (UE)) located in the coverage area.
- UE user equipment
- the network device 120 may be an evolutionary Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a Cloud Radio Access Network (CRAN).
- the wireless controller in the network device 120, or the network device 120 can be a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (PLMN), etc.
- PLMN public land mobile network
- the terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.
- the terminal device 110 may refer to an access terminal, UE, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
- the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.
- SIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Assistant
- the terminal device 110 can be used for device to device (Device to Device, D2D) communication.
- D2D Device to Device
- the wireless communication system 100 may further include a core network device 130 for communicating with the base station, and the core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an access and mobility management function (Access and Mobility Management Function, AMF), and another example, an authentication server function (Authentication Server Function, AUSF), and another example, a user plane function (User Plane Function, UPF), and another example, a session management function (Session Management Function, SMF).
- the core network device 130 may also be an evolved packet core (Evolved Packet Core, EPC) device of the LTE network, such as a session management function + core network data gateway (Session Management Function+Core Packet Gateway, SMF+PGW-C) device.
- EPC evolved packet core
- SMF+PGW-C can simultaneously implement the functions that can be implemented by SMF and PGW-C.
- the above-mentioned core network equipment may also be called other names, or new network entities may be formed by dividing the functions of the core network, which is not limited in the embodiments of the present application.
- the various functional units in the communication system 100 can also establish connections and achieve communication through the next generation network (NG) interface.
- NG next generation network
- the terminal device establishes an air interface connection with the access network device through the Uu interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); the access network device, such as the next-generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (N3 for short); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (N2 for short); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (N4 for short); the UPF can exchange user plane data with the data network through the NG interface 6 (N6 for short); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (N11 for short); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (N7 for short).
- the access network device such as the next-generation wireless access
- FIG1 exemplarily shows a base station, a core network device and two terminal devices.
- the wireless communication system 100 may include multiple base stations and each base station may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.
- NTN Non-Terrestrial Network
- satellite communication is not limited by the user's geographical location. For example, general land communication cannot cover areas such as oceans, mountains, deserts, etc. where communication equipment cannot be set up or where communication coverage is not provided due to sparse population.
- general land communication cannot cover areas such as oceans, mountains, deserts, etc. where communication equipment cannot be set up or where communication coverage is not provided due to sparse population.
- satellite communication since one satellite can cover a large area of land, and satellites can orbit the earth, in theory every corner of the earth can be covered by satellite communication.
- satellite communication has great social value.
- Satellite communication can cover remote mountainous areas, poor and backward countries or regions at a low cost, so that people in these areas can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital divide with developed areas and promoting the development of these areas.
- satellite communication has a long distance, and the cost of communication does not increase significantly as the communication distance increases; finally, satellite communication has high stability and is not restricted by natural disasters.
- NTN technology can be combined with various communication systems.
- NTN technology can be combined with NR system to form NR-NTN system.
- NTN technology can be combined with Internet of Things (IoT) system to form IoT-NTN system.
- IoT-NTN system can include NB-IoT-NTN system and eMTC-NTN system.
- FIG2 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.
- a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102.
- the network formed between the terminal device 1101 and the satellite 1102 can also be referred to as an NTN.
- the satellite 1102 can have the function of a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. Under the system architecture, the satellite 1102 can be referred to as a network device.
- a plurality of network devices 1102 may be included in the communication system, and the coverage range of each network device 1102 may include other number of terminal devices, which is not limited in the embodiments of the present application.
- FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.
- FIG3 it includes a terminal device 1201, a satellite 1202 and a base station 1203.
- Wireless communication can be performed between the terminal device 1201 and the satellite 1202, and communication can be performed between the satellite 1202 and the base station 1203.
- the network formed between the terminal device 1201, the satellite 1202 and the base station 1203 can also be referred to as an NTN.
- the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be transferred through the satellite 1202.
- the base station 1203 can be referred to as a network device.
- a plurality of network devices 1203 may be included in the communication system, and the coverage range of each network device 1203 may include other number of terminal devices, which is not limited in the embodiments of the present application.
- the network device 1203 may be the network device 120 in FIG1 .
- satellite 1102 or satellite 1202 includes but is not limited to:
- Satellites can use multiple beams to cover the ground. For example, a satellite can form dozens or even hundreds of beams to cover the ground. In other words, a satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers to ensure satellite coverage and improve the system capacity of the entire satellite communication system.
- the altitude range of LEO satellites can be 500 km to 1500 km, the corresponding orbital period can be about 1.5 hours to 2 hours, the signal propagation delay of single-hop communication between users can generally be less than 20 milliseconds, the maximum satellite visibility time can be 20 minutes, the signal propagation distance of LEO satellites is short and the link loss is small, and the transmission power requirements of user terminals are not high.
- the orbital altitude of GEO satellites can be 35786 km, the rotation period around the earth can be 24 hours, and the signal propagation delay of single-hop communication between users can generally be 250 milliseconds.
- satellites use multiple beams to cover the ground.
- a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers.
- Satellites can be divided into two types based on the functions they provide: transparent payload and regenerative payload.
- transparent payload satellites they only provide wireless frequency filtering, frequency conversion and amplification functions, and only provide transparent forwarding of signals without changing the waveform signal they forward.
- regenerative payload satellites in addition to providing wireless frequency filtering, frequency conversion and amplification functions, they can also provide demodulation/decoding, routing/conversion, encoding/modulation functions, and have some or all of the functions of a base station.
- one or more gateways may be included for communication between satellites and terminals.
- FIG4 and FIG5 are schematic diagrams showing NTN scenarios based on transparent forwarding satellites and regenerative forwarding satellites, respectively.
- the gateway and satellite communicate through the feeder link, and the satellite and terminal can communicate through the service link.
- the gateway and satellite communicate through the feeder link, and the satellite and terminal can communicate through the service link.
- satellites communicate through the interstar link, the gateway and satellite communicate through the feeder link, and the satellite and terminal can communicate through the service link.
- FIGS. 1 to 5 are only examples of the systems to which the present application is applicable. Of course, the methods shown in the embodiments of the present application can also be applied to other systems.
- system and “network” are often used interchangeably in this article.
- the term “and/or” in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
- the character "/" in this article generally indicates that the objects associated with each other are in an "or” relationship.
- the "indication” mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship.
- A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.
- the "correspondence” mentioned in the embodiments of the present application can mean that there is a direct or indirect correspondence relationship between the two, or it can mean that there is an association relationship between the two, or it can mean that there is an indication and being indicated, configuration and being configured, etc.
- predefined can refer to the definition in the protocol.
- protocol may refer to a standard protocol in the field of communications, such as LTE protocols, NR protocols, and related protocols used in future communication systems, and the present application does not limit this.
- Decellularized wireless access network As shown in Figure 6, it is a network composed of a large number of distributed low-cost and low-power wireless access devices, which can also be called APs. APs can perform simple physical layer functions such as wireless signal transmission and reception, channel estimation, downlink precoding, and uplink signal detection. In addition, as shown in Figure 6, different APs are connected to one or more central processing devices (also called central processing units (CPUs)) through backhaul links, where the CPU can perform complex physical layer functions such as AP data distribution and merging, signal modulation and demodulation, and information bit encoding and decoding, so that all APs can jointly provide services to each terminal at the same time. As the number of APs increases, the influence of cell boundaries is gradually eliminated, forming the concept of a "decellularized" system, which significantly improves system capacity and spectrum efficiency.
- CPUs central processing units
- the wireless communication method provided in the embodiment of the present application is shown in FIG7 and is applied to a terminal device, including:
- a terminal device receives at least one first channel sent by a first access device set, where the first access device set includes at least one access device.
- the at least one first channel sent by the first access device set is used to determine whether the first access device set is a target access device set, and the target access device set is used to communicate data with the terminal device.
- the wireless communication method provided in the embodiment of the present application is shown in FIG8 and is applied to a first access device, including:
- a first access device sends a first channel to a terminal device.
- the first access device belongs to a first access device set.
- the first access device set includes at least one access device. At least one of the first channels sent by the first access device set is used to determine whether the first access device set is a target access device set.
- the target access device set is used to communicate data with the terminal device.
- the access devices in the decellularized wireless access network are configured as at least two access device sets, namely AP sets, one AP set includes at least one AP, and the first AP set is any AP set of the at least two AP sets.
- a central processing device may configure an AP set for an AP in a decellularized wireless access network.
- an AP set may be configured based on the distances between different APs.
- an AP set has a main AP, and APs within a first distance range from the main AP belong to the same AP set as the main AP.
- the first AP sends a first channel, and the first AP belongs to a first AP set.
- the first AP set sends at least one first channel to the terminal device, and the at least one first channel is used by the terminal device to determine whether the first AP set is a target AP set.
- the first AP set includes at least one AP, and the at least one first channel sent by the first AP set can be understood as at least one first channel sent by at least one AP in the first AP set, wherein one AP sends one first channel.
- the terminal device performs detection of the first channel.
- the terminal device receives at least one first channel sent by an AP set, it can be considered that at least one first channel sent by the first AP set is received.
- a terminal device may receive at least one first channel, that is, one or more first channels, sent by a first AP set.
- the manner in which the first AP set sends at least one first channel includes one of the following:
- Sending mode 1 the master AP of the first AP set sends the first channel
- Sending method 2 Each AP in a first number of APs in a first AP set sends a first channel.
- the first channel sent by the first AP set includes only one first channel, and a master AP in the first AP set sends the first channel, and the terminal device receives the first channel sent by the first AP set.
- the first AP is the master AP in the first AP set.
- the first channel sent by the first AP set includes a first number of first channels, the first number is greater than 1 and less than or equal to a second number, and the second number is the number of APs included in the first AP set.
- the first number of APs in the first AP set that send the first channel include the main AP of the first AP set and at least one auxiliary AP, and the auxiliary AP is the AP other than the main AP in the first AP set.
- the terminal device receives the first number of first channels sent by the first AP set.
- the first AP is any AP in the first AP set that sends the first channel.
- the first AP set may periodically send the first channel so that a terminal device within the coverage area of the first AP set can receive the first channel.
- each AP set in the decellular wireless access network periodically sends the first channel.
- the AP set in which the terminal device detects the first channel is called the first AP set.
- the terminal device After receiving at least one first channel sent by the first AP set, the terminal device determines the Determine whether the first AP set can be used as a target AP set for data communication with the terminal device.
- the target AP set can be understood as an AP set that provides services for the terminal device. APs other than the target AP set in the cellular wireless network do not provide services for the terminal device.
- the terminal device after determining the target AP set, the terminal device establishes an association relationship with the target AP set.
- the terminal device establishes an association relationship with the APs in the target AP set, and the APs in the target AP set provide services to the terminal device after establishing an association with the terminal device.
- the services provided by the APs in the target AP set for the terminal device include at least one of the following simple physical layer functions: wireless signal transmission and reception, channel estimation, downlink precoding, and uplink signal detection.
- the APs in the target AP set are connected to one or more CPUs via a backhaul link to distribute or merge the data of the terminal device sent or received by the APs in the target AP set, thereby enabling the APs in the target AP set to jointly provide services for the terminal device.
- the terminal device can receive the first channel sent by at least one first AP set, wherein a first AP set sends at least one first channel.
- the terminal device receives a first channel sent by a first AP set, it is determined whether the first AP set can be the target AP set corresponding to the terminal device.
- the terminal device receives the first channel sent by multiple first AP sets, it determines whether each first AP set in the multiple first AP sets can be the target AP set corresponding to the terminal device, or selects a first AP set that can be the target AP set from the multiple first AP sets.
- the terminal device determines whether the first AP set is the target AP set for data communication with the terminal device based on at least one first channel sent by the received first AP set, thereby providing services for the terminal device based on the AP set, without all APs providing services for the terminal device, thereby achieving better network scalability while reducing signaling overhead and computational complexity.
- a first receiving power is used to determine whether the first AP set is the target AP set, and the first receiving power is determined based on a receiving power of the first channel sent by the first AP set and received by the terminal device.
- the first receiving power is the receiving power of the first channel received by the terminal device; if the first channel sent by the first AP set includes multiple first channels, the first receiving power is determined based on the receiving power of each first channel in the multiple first channels, that is, multiple receiving powers. In one example, the first receiving power is the maximum receiving power among the multiple receiving powers of the multiple first channels, and may also be the receiving power after the weighted sum of the multiple receiving powers.
- the first AP set is determined to be the target AP set:
- the first received power is greater than a received power threshold
- the first receiving power is a maximum value among multiple first receiving powers.
- a terminal device receives a first channel of a first AP set. If a first receiving power of the first AP set is greater than a receiving power threshold, the first AP set is a target AP set.
- the terminal device receives the first channels of multiple first AP sets, then compares the first receiving powers of the multiple first AP sets, and determines the first AP set corresponding to the largest first receiving power as the target AP set.
- a terminal device receives the first channels of multiple first AP sets, then compares the first receiving powers of the multiple first AP sets, and compares the first receiving powers of the multiple first AP sets with a receiving power threshold, and when the largest first receiving power is greater than the receiving power threshold, determines the first AP set corresponding to the largest first receiving power as the target AP set.
- the wireless communication method provided in the embodiment of the present application determines whether the first AP set is a target AP set based on the first receiving power determined by the receiving power of the first channel of the first AP set.
- the first AP set can be used as the target AP set based on the distance between the first AP set and the terminal device, thereby determining the AP set that can provide high-quality services to the terminal device.
- the first channel carries a downlink synchronization signal
- the downlink synchronization signal is used for the terminal device to perform downlink synchronization with the AP set that sends the first channel.
- the terminal device When the first channel carries a downlink synchronization signal, if the terminal device determines a first AP set as a target AP set, the terminal device can perform downlink synchronization with the first AP set through the downlink synchronization signal carried by the first channel sent by the first AP set, thereby achieving downlink synchronization with the target AP set.
- the downlink synchronization signal is used for time and frequency synchronization between the terminal device and the corresponding first AP set.
- downlink synchronization signals in the first channel sent by different AP sets are sent using different first pseudo-random sequences.
- the first pseudo-random sequence used in the downlink synchronization signal in the first channel is used by the terminal device to identify the first AP set that sends the first channel.
- the first pseudo-random sequence used by the downlink synchronization signals carried by the first channels sent by the different APs is the same.
- the terminal device After receiving the first signal, the terminal device identifies the AP set that sends the first channel through the first pseudo-random sequence used by the downlink synchronization signal in the first signal.
- the terminal device can detect the synchronization signal of the first channel through the first pseudo-random sequence corresponding to an AP set, and if the synchronization signal is detected, it is determined that the first channel sent by the first AP set is received.
- the first pseudo-random sequence corresponding to AP set 1 is sequence A
- the first pseudo-random sequence corresponding to AP set 2 is sequence B.
- sequence A it is determined that the downlink synchronization signal sent by AP set 1 is received; if the downlink synchronization signal is detected through sequence A and sequence B, it is determined that the downlink synchronization signal sent by AP set 1 and AP set 2 (including downlink synchronization signal 1 of AP set 1 and downlink synchronization signal 2 sent by AP set 2) is received, and sequence A and sequence B are used to distinguish the downlink synchronization signal 1 of AP set 1 and the downlink synchronization signal 2 sent by AP set 2.
- the first pseudo-random sequence includes an m-sequence, a Gold sequence, or other pseudo-random sequence having good autocorrelation and cross-correlation characteristics.
- the first channel carries at least one of:
- the first indication information indicates a position of a first resource, where the first resource is a resource occupied by transmission of the first channel, and the position of the first resource is used for time domain positioning and/or frequency domain positioning;
- the second indication information indicates a second resource, where the second resource is a resource occupied by transmission of a second channel, and the second channel is a wireless channel subsequent to the first channel;
- the first information is used by the terminal device to determine a first timing advance TA.
- the first indication information may indicate a first time domain position and/or a first frequency domain position, the first time domain position being the time domain position of the first resource, the first frequency domain position being the frequency domain position of the first resource, the first time domain position being used for time domain positioning of the terminal device, and the second time domain position being used for frequency domain positioning of the terminal.
- Time domain positioning can be understood as establishing the relationship between time and time domain units.
- the time domain unit includes at least one of the following: frame, subframe, time slot, symbol.
- the terminal device determines a time domain unit corresponding to a time through time domain positioning.
- Frequency domain positioning can be understood as establishing the relationship between frequency points and frequency domain units.
- Frequency domain units include at least one of the following: scheduling blocks (SBs), resource blocks (RBs), and resource elements (REs).
- the terminal device determines the frequency domain unit corresponding to a frequency point through frequency domain positioning.
- the second indication information is used to indicate the location and/or size of the second resource. If the second indication information indicates the location of the second resource, the second indication information may directly indicate the location of the second resource, or may indicate an offset, which is an offset of the location of the second resource relative to a reference channel in the time domain and/or frequency domain.
- the second channel may include at least one of the following: a third channel, a fourth channel, a fifth channel, and a sixth channel.
- the second resource includes at least one of the following: a third resource occupied by transmission of the third channel, a fourth resource occupied by transmission of the fourth channel, a fifth resource occupied by transmission of the fifth channel, and a sixth resource occupied by transmission of the sixth channel.
- the third channel is a channel sent by a terminal device to a target AP set for requesting association with a target AP set.
- the fourth channel is a channel sent by a first AP set or a target AP set to a terminal device for carrying first random access configuration information, wherein the first random access configuration information is configuration information of a random access process for a terminal device to access the first AP set.
- the fifth channel is used to schedule the fourth resource.
- the sixth channel is used to indicate the fifth resource.
- a resource it may include the position of the resource in the time domain, that is, the time domain resource, and the position of the resource in the frequency domain, that is, the frequency domain resource.
- the second indication information may indicate the position of the resource in the time domain and/or frequency domain, that is, indicate the time domain resources and/or frequency domain resources included in the resource.
- the second channel includes a third channel and a fourth channel.
- the second indication information indicates the time domain position and the frequency domain position of the third resource, and the time domain position and the frequency domain position of the fourth resource.
- the second channel includes a third channel and a fifth channel.
- the second indication information indicates the time domain position and frequency domain position of the third resource, as well as the time domain position and frequency domain position of the fifth resource, and the fifth channel schedules the time domain position and frequency domain position of the fourth resource.
- the second channel includes the sixth channel.
- the second indication information indicates the time domain position and frequency domain position of the sixth resource.
- the terminal device determines the time domain position and frequency domain position of the fifth resource based on the sixth channel, and the fifth channel transmitted on the fifth resource schedules the time domain position and frequency domain position of the fourth resource.
- the second channel includes a third channel, a fourth channel, a fifth channel and a sixth channel.
- the second indication information indicates: the time domain position and frequency domain position of the third resource, the time domain position of the fourth resource, the frequency domain position of the fifth resource, the time domain position and frequency domain position of the sixth resource, wherein the terminal device receives the sixth channel based on the sixth resource, the sixth channel indicates the frequency domain position of the fifth resource, the terminal device receives the fifth channel based on the fifth resource, and the fifth channel schedules the frequency domain position of the fourth resource.
- the second resource includes the time domain resource and the frequency domain resource.
- the first information is used to determine the first TA.
- the first TA can be understood as an open-loop TA.
- the open-loop TA can be used for uplink time domain synchronization of the terminal device in the NTN scenario, thereby adjusting the sending time of the uplink transmission in the NTN scenario.
- the first information may include at least one of the following: satellite ephemeris information and public TA information.
- the first channel if the wireless communication method provided in the embodiment of the present application is applied to NTN, the first channel carries the first information; otherwise, the first channel may not carry the first information.
- the method further includes:
- the terminal device sends a third channel to the first AP set, and the third channel is used for the terminal device to establish an association relationship with the first AP set.
- the first AP set is the target AP set, based on the method shown in FIG8 , further comprising:
- the first AP receives a third channel sent by the terminal device, and the third channel is used for the terminal device to establish an association relationship with the first AP set.
- the terminal device When the terminal device determines that the first AP set is the target AP based on the first channel sent by the first AP set, the terminal device sends a third channel to the first AP set.
- the third channel may be a physical random access channel (PRACH).
- the terminal device establishes an association relationship with the first AP set, so that the first AP set becomes the target AP set.
- the terminal device establishes an association relationship with the first AP set, and each AP in the first AP set establishes an association relationship with the terminal device, so that each AP in the first AP set can provide services to the terminal device.
- the terminal device sends a third channel to the main AP of the first AP set or each AP in the first AP set.
- the main AP of the first AP set or each AP receives a third channel, and the first AP set establishes an association relationship with the terminal device based on receiving the third channel.
- the terminal device sends a third channel to an AP in the first AP set.
- each AP in the first AP set receives a third channel respectively, and each AP in the first AP set establishes an association relationship with the terminal device based on receiving the third channel, thereby realizing the establishment of an association relationship between the first AP set and the terminal device.
- the first AP set can establish an association relationship with the terminal device through a random access process.
- the third channel carries an uplink synchronization signal, and the uplink synchronization signal is used for uplink synchronization between the terminal device and the target AP set.
- the third channel may be transmitted using a second pseudo-random sequence.
- the terminal device uses the second pseudo-random sequence to send the third channel.
- the second pseudo-random sequence may be used for correlation detection. If the existence of the third channel is detected through the second pseudo-random sequence, the uplink time synchronization of the terminal sending the third channel may be completed.
- the third resource occupied by the third channel transmission is determined based on at least one of the following:
- Factor 3A a first resource and a first offset, wherein the first resource is a resource occupied by transmission of the first channel, and the first offset is an offset of the third resource relative to the first resource in the time domain and/or frequency domain;
- the first offset is the offset of the third resource relative to the first resource in the time domain
- the first offset is the first time domain offset
- the first offset is the first frequency domain offset
- the first offset includes the first time domain offset and the first frequency domain offset.
- the first time domain offset is offset relative to the first time domain position to obtain the third time domain position
- the first frequency domain offset is offset relative to the first frequency domain position to obtain the third frequency domain position.
- the third time domain position is the position of the third resource in the time domain
- the third frequency domain position is the position of the third resource in the frequency domain.
- the unit of the offset in the time domain is the time domain unit
- the unit of the offset in the frequency domain is the frequency domain unit
- the determination of third resources includes the following four items:
- a third time domain position where the third time domain position is a position of the third resource in the time domain
- a third frequency domain position where the third frequency domain position is a position of the third resource in the frequency domain
- a third time domain size where the third time domain size is a size of the third resource in the time domain
- the third frequency domain size is the size of the third resource in the frequency domain.
- the above four items of the third resource can be determined based on one or more factors of factor 3A and factor 3B when factor 3A and factor 3B do not conflict.
- a combination of the first offset and the first resource and/or the third indication information is used to determine a third time domain position and a third frequency domain position.
- the first offset and the first resource are used to determine a third time domain position and a third frequency domain position.
- the third indication information is used to determine a third time domain position and a third frequency domain position.
- the first offset and the first resource are used to determine a third time domain position
- the third indication information is used to determine a third frequency domain position
- the first offset and the first resource are used to determine a third frequency domain position
- the third indication information is used to determine a third time domain position
- the first offset and the first resource are used to determine a third time domain position and a third frequency domain position
- the first offset includes a first time domain offset and a first frequency domain offset
- the terminal device determines the position of the third resource based on the first offset and the first resource, wherein the terminal device determines the third time domain position based on the first time domain offset and the position of the first resource in the time domain, i.e., the first time domain position
- the terminal device determines the third frequency domain position based on the first frequency domain offset and the position of the first resource in the frequency domain, i.e., the first frequency domain position.
- the terminal device determines the position of the third resource based on the third indication information.
- the terminal device determines the third time domain position based on the first time domain offset and the first time domain position, and determines the third frequency domain position based on the third indication information.
- the terminal device determines the third frequency domain position based on the first frequency domain offset and the first frequency domain position, and determines the third time domain position based on the third indication information.
- the third time domain size may be the set first size or indicated by third indication information.
- the third frequency domain size may be the set second size or indicated by third indication information.
- different methods for determining the third time domain position and the third frequency domain position of the third resource and different methods for determining the size of the third resource in the time domain and the frequency domain may be combined with each other without conflict.
- the third time domain position is determined based on the first time domain position and the first time domain offset
- the third frequency domain position is determined based on third indication information
- the size of the third resource in the time domain is the set first size
- the size of the third resource in the frequency domain is indicated by the third indication information.
- the third time domain resource, the third frequency domain resource, and the size of the third resource in the time domain and the frequency domain are indicated by third indication information.
- the third time domain position is determined based on the first time domain position and the first time domain offset
- the third frequency domain position is determined based on the first frequency domain position and the first frequency domain offset.
- the size of the third resource in the time domain is the first size
- the size of the third resource in the frequency domain is the second size.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the third indication information is the third indication information.
- the method further includes:
- the terminal device receives a fourth channel sent by the first AP set, where the fourth channel is used to carry first random access configuration information corresponding to the first AP set, and the first random access configuration information is used by the terminal device to access the first AP set through a random access process.
- the method further includes:
- the first AP sends a fourth channel to the terminal device, where the fourth channel is used to carry first random access configuration information corresponding to the first AP set, and the first random access configuration information is used in a random access process for the terminal device to access the first AP set.
- the sending method of the fourth channel may refer to the sending method of the first channel, which will not be described in detail here.
- the fourth channel can be a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).
- PDSCH Physical Downlink Shared Channel
- the terminal device After receiving the fourth channel sent by the first AP set, the terminal device performs a random access process for accessing the first AP set based on the first random access configuration information carried by the fourth channel, thereby associating with the first AP set.
- the first random access process configuration message is a cell-level system message and is not targeted at the current terminal device.
- the first random access configuration information includes at least one of the following:
- a first frequency range where the first frequency range is a frequency range in which downlink channel transmission occurs during a random access process
- the second frequency range is a frequency range in which uplink channel transmission in a random access process occurs.
- the terminal device sends an uplink channel transmission in a random access process to the first AP set based on the first frequency range; and receives a downlink channel transmission sent by the first AP set based on the first frequency range.
- the first AP set receives uplink channel transmission of the random access process within the second frequency range, and sends downlink channel transmission of the random access process to the terminal device based on the first frequency range.
- the first random access process configuration information sent to the terminal device through the fourth channel is different.
- the fourth channel is further used to carry at least one of the following:
- Fourth indication information where the fourth indication information is used to indicate a time domain position of a fourth resource, where the fourth resource is a resource occupied by transmission of the fourth channel, and the time domain position of the fourth resource is used for time domain positioning;
- First information where the first information is used by the terminal device to determine a first TA
- Random Access Response (RAR) message Random Access Response
- one piece of information indicating the same function or purpose may be configured, and no repeated configuration is required.
- one of the first channel and the fourth information may carry the first information.
- one of the first channel and the fourth channel may carry information for time domain positioning. For the sake of simplicity, detailed examples will not be given later.
- the RAR message may carry at least one of the following information: a second TA, uplink grant scheduling information, and a temporary identifier used in a random access process.
- the second TA is a TA for the terminal device, which may be understood as a closed-loop TA.
- the terminal device if the terminal device is applied to a non-NTN network, the terminal device performs timing advance based on the second TA; if the terminal device is applied to an NTN network, the terminal device performs timing advance based on a combination of the first TA and the second TA to adjust the sending time of the uplink transmission.
- the first TA is used to adjust a sending time of a first uplink transmission, where the first uplink transmission is an uplink transmission after receiving the first information.
- the channels acted upon by the first TA include the fourth channel and uplink transmission in the random access process.
- the information affected by the first TA includes uplink transmission in the random access process.
- the reception of the fourth channel precedes the sending of the third channel
- the third channel is a channel sent by the terminal device to the first AP set when the first AP set is determined to be the target AP set
- the third channel is used for the terminal device to establish an association relationship with the target AP set
- the transmission of the third channel precedes the reception of the fourth channel.
- the first AP set sends the fourth channel to the terminal device after sending the first channel, and each of the multiple first AP sets sends the fourth channel carrying the corresponding first random access process configuration information.
- the terminal device attempts to receive the fourth channel sent by the first AP set.
- the first AP set is not sure whether it is the target AP set, and attempts to send the first random access process configuration information to the terminal device.
- the multiple first AP sets include AP set 1 and AP set 2.
- AP set 1 and AP set 2 send the first channel to the terminal device, as shown in Figure 9, AP set 1 and AP set 2 respectively send the fourth channel to the terminal device.
- the terminal device determines that AP set 1 is the target AP set, it sends the third channel to AP set 1 to achieve uplink synchronization between the terminal device and AP set 1.
- the terminal device determines the first AP set as the target AP set based on the received first channel, and sends the third channel to the first AP set determined as the target AP set, and the first AP set determined as the target AP set sends the fourth channel to the terminal device.
- the AP set that determines itself as the target A set sends the fourth channel to the terminal device to provide its own first random access process configuration information, and the terminal device only receives the fourth channel sent by the first AP set determined as the target AP set. This avoids unnecessary channel transmission.
- the terminal device sends the third channel to AP set 1 as described in Figure 9 when determining that AP set 1 is the target AP set.
- AP set 1 sends the fourth channel to the terminal device based on the received third channel to achieve uplink synchronization between the terminal device and AP set 1.
- the fourth resource occupied by the transmission of the fourth channel is determined based on at least one of the following:
- Factor 4A a first resource and a second offset, wherein the first resource is a resource occupied by transmission of the first channel, and the second offset is an offset of the fourth resource relative to the first resource in the time domain and/or frequency domain;
- Factor 4B a third resource and a third offset, wherein the third resource is a resource occupied by transmission of a third channel before the fourth channel, and the third offset is an offset of the fourth resource relative to the third resource in the time domain and/or frequency domain;
- the fifth channel is used to schedule the fourth channel.
- the second offset is the offset of the fourth resource relative to the first resource in the time domain
- the second offset is the second time domain offset
- the second offset is the offset of the fourth resource relative to the first resource in the frequency domain
- the second offset is the second frequency domain offset
- the second offset includes the second time domain offset and the second frequency domain offset.
- the fourth time domain position is obtained by offsetting the second time domain offset relative to the first time domain position
- the fourth frequency domain position is obtained by offsetting the second frequency domain offset relative to the first frequency domain position.
- the fourth time domain position is the position of the fourth resource in the time domain
- the fourth frequency domain position is the position of the fourth resource in the frequency domain.
- the third offset is the third time domain offset; if the third offset is the offset of the fourth resource relative to the third resource in the frequency domain, the third offset is the third frequency domain offset; if the third offset is the offset of the fourth resource relative to the third resource in the time domain and the frequency domain, the third offset includes the third time domain offset and the third frequency domain offset.
- the fourth time domain position is obtained by offsetting the third time domain offset relative to the third time domain position, and the fourth frequency domain position is obtained by offsetting the third frequency domain offset relative to the third frequency domain position.
- the third time domain position is the position of the third resource in the time domain
- the third frequency domain position is the position of the third resource in the frequency domain.
- the fifth channel is a downlink transmission channel prior to the fourth channel, for example, PDCCH.
- the determination of the fourth resource includes determining the following four items:
- the fourth time domain position is a position of a fourth resource in the time domain
- the fourth frequency domain position is a position of a fourth resource in the frequency domain
- the fourth time domain size is a size of the fourth resource in the time domain
- the fourth frequency domain size is the size of the fourth resource in the frequency domain.
- the above four items of the fourth resource can be determined based on one or more of factors 4A, 4B, 4C, and 4D when factors 4A, 4B, 4C, and 4D do not conflict with each other.
- the fourth time domain position, the fourth frequency domain position, the fourth time domain size, and the fourth frequency domain size are indicated by fifth indication information.
- the fourth time domain position, the fourth frequency domain position, the fourth time domain size, and the fourth frequency domain size are scheduled by the fifth channel.
- the fourth time domain position is determined based on the first time domain position and the second time domain offset
- the fourth frequency domain position is determined based on the third time domain position and the third frequency domain position
- the fourth time domain size is indicated by the fifth indication information
- the fourth frequency domain size is scheduled by the fifth channel.
- the fourth time domain position is determined based on the first time domain position and the second time domain offset
- the fourth frequency domain position is determined based on the first time domain position and the second frequency domain position
- the fourth time domain size and the fourth frequency domain size are determined by fifth indication information.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the fifth indication information is the fifth indication information.
- the fifth channel includes at least one of the following:
- sixth indication information where the sixth indication information is used to indicate a position and/or size of the fourth resource in the frequency domain and/or time domain;
- a fourth offset where the fourth offset is an offset of the fourth resource relative to the fifth resource occupied by the transmission of the fifth channel in the time domain and/or frequency domain.
- the fifth channel may schedule at least one of the four contents of the fourth resource, and the fifth channel may directly indicate the content to be scheduled based on the sixth indication information, or may indicate the content to be scheduled by means of the fourth offset.
- the fourth offset includes a fourth time domain offset and/or a fourth frequency domain offset.
- the fourth time domain offset is the offset of the fourth time domain position relative to the fifth time domain position, that is, the offset of the fourth resource relative to the fifth resource in the time domain;
- the fourth frequency domain offset is the offset of the fourth frequency domain position relative to the fifth frequency domain position, that is, the offset of the fourth resource relative to the fifth resource in the frequency domain.
- the fifth time domain position is the position of the fifth resource in the time domain, and the fifth frequency domain position is the position of the fifth resource in the frequency domain.
- the fifth resource occupied by the transmission of the fifth channel is determined based on at least one of the following:
- Factor 5A the first resource and a fifth offset, where the fifth offset is an offset of the fifth resource relative to the first resource in the time domain and/or frequency domain;
- Factor 5C seventh indication information, where the seventh indication information is used to indicate a position and/or size of the fifth resource in the time domain and/or frequency domain;
- Factor 5D a sixth channel, where the sixth channel is used to indicate the position and/or size of the fifth resource in the time domain and/or frequency domain.
- the fifth offset is the offset of the fifth resource relative to the first resource in the time domain
- the fifth offset is the fifth time domain offset
- the fifth offset is the offset of the fifth resource relative to the first resource in the frequency domain
- the fifth offset is the fifth frequency domain offset
- the fifth offset includes the fifth time domain offset and the fifth frequency domain offset.
- the fifth time domain position is obtained by offsetting the fifth time domain offset relative to the first time domain position
- the fifth frequency domain position is obtained by offsetting the fifth frequency domain offset relative to the first frequency domain position.
- the fifth time domain position is the position of the fifth resource in the time domain
- the fifth frequency domain position is the position of the fifth resource in the frequency domain.
- the sixth offset is the offset of the fifth resource relative to the third resource in the time domain
- the sixth offset is the sixth time domain offset
- the sixth offset is the offset of the fifth resource relative to the third resource in the frequency domain
- the sixth offset is the sixth frequency domain offset
- the sixth offset includes the sixth time domain offset and the sixth frequency domain offset.
- the fifth time domain position is obtained by offsetting the sixth time domain offset relative to the third time domain position
- the fifth frequency domain position is obtained by offsetting the sixth frequency domain offset relative to the third frequency domain position.
- the sixth channel is a downlink transmission channel prior to the fifth channel, for example: PBCH.
- the determination of the fifth resource includes determining the following four items:
- the fifth time domain position is a position of the fifth resource in the time domain
- a fifth frequency domain position where the fifth frequency domain position is a position of a fifth resource in the frequency domain
- the fifth time domain size is a size of the fifth resource in the time domain
- the fifth frequency domain size is the size of the fifth resource in the frequency domain.
- the above four items of the fifth resource can be determined based on one or more of factors 5A, 5B, 5C, and 5D when factors 5A, 5B, 5C, and 5D do not conflict with each other.
- the fifth time domain position, the fifth frequency domain position, the fifth time domain size, and the fifth frequency domain size are indicated by seventh indication information.
- the fifth time domain position, the fifth frequency domain position, the fifth time domain size, and the fifth frequency domain size are indicated by the sixth channel.
- the fifth time domain position is determined based on the first time domain position and the fifth time domain offset
- the fifth frequency domain position is determined based on the third time domain position and the sixth frequency domain position
- the fifth time domain size is indicated by the seventh indication information
- the fifth frequency domain size is indicated by the sixth channel.
- the fifth time domain position is determined based on the first time domain position and the fifth time domain offset
- the fifth frequency domain position is determined based on the first time domain position and the fifth frequency domain position
- the fifth time domain size and the fifth frequency domain size are determined by the seventh indication information.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the sixth channel includes at least one of the following:
- Eighth indication information where the eighth indication information is used to indicate a position and/or size of the fifth resource in the time domain and/or frequency domain;
- the seventh offset is an offset of the fifth resource relative to a sixth resource occupied by transmission of the sixth channel in the time domain and/or frequency domain;
- the ninth indication information is used to indicate the position of the sixth resource, and the position of the sixth resource is used for time domain positioning and/or frequency domain positioning.
- the sixth channel may indicate at least one of the four contents of the fifth resource, and the sixth channel may directly indicate the content to be scheduled based on the eighth indication information, or may indicate the content to be scheduled by means of the seventh offset.
- the seventh offset includes a seventh time domain offset and/or a seventh frequency domain offset.
- the seventh time domain offset is the offset of the fifth time domain position relative to the sixth time domain position, that is, the offset of the fifth resource relative to the sixth resource in the time domain;
- the seventh frequency domain offset is the offset of the fifth frequency domain position relative to the sixth frequency domain position, that is, the offset of the fifth resource relative to the sixth resource in the frequency domain.
- the sixth time domain position is the position of the sixth resource in the time domain, and the sixth frequency domain position is the position of the sixth resource in the frequency domain.
- the terminal device may perform frequency domain positioning and/or time domain positioning based on any one of the first channel and the sixth channel. In the embodiment of the present application, if the terminal device does not receive the sixth channel, the terminal device may perform time domain positioning based on any one of the first channel and the fourth channel, and perform frequency domain positioning based on the first channel.
- the sixth resource occupied by the transmission of the sixth channel is determined based on at least one of the following:
- the tenth indication information is used to indicate the position and/or size of the sixth resource in the time domain and/or frequency domain.
- the eighth offset is the offset of the sixth resource relative to the first resource in the time domain
- the eighth offset is the eighth time domain offset
- the eighth offset is the offset of the sixth resource relative to the first resource in the frequency domain
- the eighth offset is the eighth frequency domain offset
- the eighth offset includes the eighth time domain offset and the eighth frequency domain offset.
- the sixth time domain position is obtained by offsetting the eighth time domain offset relative to the first time domain position
- the sixth frequency domain position is obtained by offsetting the eighth frequency domain offset relative to the first frequency domain position.
- the sixth time domain position is the position of the sixth resource in the time domain
- the sixth frequency domain position is the position of the sixth resource in the frequency domain.
- the ninth offset is the offset of the sixth resource relative to the third resource in the time domain
- the ninth offset is the ninth time domain offset
- the ninth offset is the ninth frequency domain offset
- the ninth offset includes the ninth time domain offset and the ninth frequency domain offset.
- the sixth time domain position is obtained by offsetting the ninth time domain offset relative to the third time domain position
- the sixth frequency domain position is obtained by offsetting the ninth frequency domain offset relative to the third frequency domain position.
- the determination of the sixth resource includes determining the following four items:
- the sixth time domain position is a position of a sixth resource in the time domain
- a sixth frequency domain position where the sixth frequency domain position is a position of a sixth resource in the frequency domain
- the sixth time domain size is a size of the sixth resource in the time domain
- the sixth frequency domain size is the size of the sixth resource in the frequency domain.
- the above four contents of the sixth resource can be determined based on one or more factors among factor 6A, factor 6B, and factor 6C when factor 6A, factor 6B, and factor 6C do not conflict with each other.
- the sixth time domain position, the sixth frequency domain position, the sixth time domain size, and the sixth frequency domain size are indicated by tenth indication information.
- the sixth time domain position is determined based on the first time domain position and the eighth time domain offset
- the sixth frequency domain position is determined based on the third frequency domain position and the ninth frequency domain offset
- the sixth time domain size and the sixth frequency domain size are indicated by the seventh indication information.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the tenth indication information The tenth indication information.
- the target AP set is established through the interaction of the first channel, the third channel and the fourth channel between the terminal device and the first AP set.
- the terminal device receives the first channel sent by the first AP set, determines that the first AP set is the target AP set based on the first channel sent by the first AP set, and then sends the third channel to the first AP set.
- the terminal device determines the fourth resource, and then receives the fourth channel sent by the first AP set on the fourth resource.
- the terminal device After receiving the fourth channel, the terminal device performs a random access process based on the first random access process configuration information corresponding to the first AP set carried by the fourth channel to access the first AP set, and realizes association with the first AP set as the target AP set, and the APs in the first AP set jointly provide services for the terminal device.
- the manner in which the terminal device determines the fourth resource includes but is not limited to the following manners:
- Mode 1 determining the fourth resource based on the second offset or the third offset carried by the first channel
- Mode 2 determining the fifth resource based on the fifth offset or the sixth offset carried by the first channel, and the fifth channel received by the terminal device on the fifth resource schedules the fourth resource;
- Method 3 determining the sixth resource based on the eighth offset or the ninth offset carried by the first channel, the sixth channel received by the terminal device on the sixth resource indicates the fifth resource, and the fifth channel received by the terminal device on the fifth resource schedules the fourth resource.
- the terminal device determines that the first AP set is the target AP set, the terminal device performs the following processing:
- the terminal device sends or receives a seventh channel, and the seventh channel is used to update the APs included in the target AP set.
- the first AP receives or sends a seventh channel, and the seventh channel is used to update the APs included in the target AP set.
- the seventh channel may be understood as a channel through which the terminal device performs channel measurement on the first AP or the first AP performs channel measurement on the terminal device.
- the APs in the target AP set currently associated with the terminal device are updated so that the APs included in the target AP set are
- the AP level is updated.
- the target AP set includes: AP1, AP2, AP3 and AP4, and the updated target AP set may include the following situations:
- an AP set is a target AP set associated with a terminal device
- the APs included in the target AP set may change, but for the configuration of the AP set, the APs included in the first AP set remain unchanged.
- updating the APs included in the target AP set includes:
- the terminal device measures the APs in the candidate AP set or the APs in the candidate AP set measure the terminal device, and updates the target AP set based on the measurement results, wherein the candidate AP set includes the APs in the first AP set.
- the measurement results corresponding to the candidate APs in the candidate AP set are used to update the target AP set, and the candidate AP set includes the APs in the first AP set.
- all candidate APs in the candidate AP set need to receive or send the seventh channel.
- the measurement result corresponding to the candidate AP in the candidate AP set is a measurement result of the terminal device measuring the candidate AP in the candidate AP set or a measurement result of the candidate AP measuring the terminal device.
- the CPU may determine a candidate AP set based on the first AP set, the candidate AP set includes APs in the first AP set, the terminal device measures the candidate APs in the candidate AP set, or the candidate AP measures the terminal device to obtain a measurement result corresponding to the candidate AP.
- the candidate AP it is determined whether the candidate AP is an AP in the target AP set based on the measurement result corresponding to the candidate AP.
- the first AP set includes: AP1, AP2, AP3, and AP4, and the candidate AP set may include: AP1, AP2, AP3, AP4, AP5, AP6, AP7, and AP8.
- the measurement result includes at least one of the following:
- the seventh channel includes at least one of the following:
- the terminal device For the uplink measurement channel, the terminal device sends the uplink measurement channel to the candidate APs in the candidate AP set, and the CPU determines the associated AP in the target AP set based on the measurement results of each candidate AP in the candidate AP set.
- the CPU determines each candidate AP in the candidate AP set, each candidate AP in the candidate AP set sends a downlink measurement channel to the terminal device, the terminal device measures the received downlink measurement channel to obtain a measurement result, and determines the associated AP in the target AP set based on the measurement result of each candidate AP in the candidate AP set.
- the downlink measurement channel includes one of the following:
- the downlink measurement channel includes the first channel.
- the first channel is for the AP set, and the CSI-RS is for the AP.
- the uplink measurement channel includes one of the following:
- a third channel wherein the third channel is used for the terminal device to establish an association relationship with the target AP set
- the uplink measurement channel includes the third channel.
- the third channel is for the AP set, and SRS is for the AP.
- the terminal device manages the AP set by measuring the first channel and/or CSI-RS, or the candidate AP in the candidate AP set measures the third channel and/or SRS, thereby continuously updating the AP set associated with the terminal, ensuring that the terminal device is always served by one or more APs with better channel conditions, thereby ensuring the service quality of the communication system.
- the wireless communication method provided in the embodiments of the present application includes but is not limited to the following Embodiment 1 and Embodiment 2.
- Example 1 Establishing a terminal-associated AP set
- the terminal Before establishing an RRC connection, the terminal can establish an association with an AP set consisting of one or more APs in the network through a random access process.
- the specific process is as follows:
- the terminal measures the first channel periodically sent by the AP set to determine the target AP set.
- the first channel sent by the AP set should at least carry the functions of downlink time synchronization, frequency synchronization and AP signal strength measurement, so the first channel needs to contain at least a synchronization signal to complete the functions.
- the synchronization signal can be sent using a pseudo-random sequence, such as an m-sequence or a Gold sequence with good autocorrelation and cross-correlation characteristics. Based on this, when detecting the synchronization signal, the terminal can perform correlation detection on the sequence that may be used by the synchronization signal. When the synchronization signal is detected, the downlink time and frequency synchronization of the target AP set can be completed.
- synchronization signals of different AP sets use different sequences, so that the terminal can distinguish different AP sets in the network according to the synchronization signals.
- AP set 1 and AP set 2 are connected to the CPU, and synchronization signal 1 of AP set 1 and synchronization signal 2 of AP set 2 use sequence 1 and sequence 2 respectively.
- the terminal device uses the pseudo-random sequences corresponding to sequence 1 and sequence 2 to perform correlation detection, thereby distinguishing the synchronization signals of AP set 1 and AP set 2. Since the terminal device is close to AP set 1, the received power of synchronization signal 1 is relatively large, and the terminal device uses AP set 1 as the target AP set for downlink time and frequency synchronization.
- the first channel indicates first channel information, and the first channel information includes at least one of the following:
- the location of the time domain resources corresponding to the first channel such as the radio frame index, time slot index and symbol index corresponding to the first channel transmission, so that the terminal completes the radio frame timing, time slot timing and symbol timing after receiving the first channel;
- the position of the frequency domain resources corresponding to the first channel for example, the RB index and subcarrier index corresponding to the first channel transmission in the initial downlink BWP, so that the terminal determines the frequency domain position relationship between the first channel and the initial downlink BWP after receiving the first channel;
- the wireless channel after the first channel transmits the corresponding time domain resource position, frequency domain resource position, time domain resource size, and frequency domain resource size.
- the terminal device sends a third channel to the target AP set, requesting to establish an association relationship with the target AP set.
- the third channel sent by the terminal device should at least carry the functions of uplink time synchronization and requesting to establish an association relationship with the target AP set. Therefore, the third channel can be sent using a pseudo-random sequence (second pseudo-random sequence), such as a ZC sequence with low peak-to-average bit characteristics.
- second pseudo-random sequence such as a ZC sequence with low peak-to-average bit characteristics.
- the third channel is detected at a third time domain position and a third frequency domain position, such as performing correlation detection on a sequence that may be used by the third channel.
- the uplink time synchronization of the terminal sending the third channel can be completed. Subsequently, the terminal establishes an association relationship with the target AP set through a random access process.
- the third time domain position can be determined by the first time domain offset, and the first time domain offset is the number of time domain units of the third channel offset relative to the first channel, such as the number of offset time slots and symbols.
- the third time domain position is the time domain position corresponding to 1 time slot and 2 symbols after the first channel, such as the third channel transmitted in time slot #1 in Figure 12.
- the third time domain position can also be a specified time domain unit index, such as a specified time slot and symbol index.
- the third time domain position is the time domain position corresponding to symbol #8 of time slot #2, such as the third channel transmitted in time slot #2 in Figure 12.
- the number of offset time domain units and/or the specified time domain unit index included in the first time domain offset can be a default value provided by the protocol, or can be provided through the first channel.
- the third frequency domain position may be based on the first frequency domain offset, which is the number of frequency domain units of the third channel offset relative to the first channel, such as the number of offset RBs and subcarriers, for example, the frequency domain position corresponding to the first channel offset by 1 RB and 2 subcarriers, such as the third channel transmitted in time slot #1 in Figure 12; the first frequency domain position may also be the frequency domain unit index specified in the initial uplink BWP, such as the specified RB and subcarrier index, for example, the frequency domain position corresponding to subcarrier #8 of RB#2, such as the third channel transmitted in time slot #2 in Figure 12.
- the number of offset RBs and subcarriers, and/or the specified RB and subcarrier index indicated by the first frequency domain offset may be a default value provided by the protocol, or may be provided through the first channel.
- the size of the time domain resources and the size of the frequency domain resources occupied by the third channel transmission are provided through the first channel. For example, if the number of symbols and the number of RBs occupied by the third channel transmission are not fixed, the number of symbols and the number of RBs specifically occupied by the third channel transmission can be indicated through the first channel to ensure that the terminal device and the target AP set have the same understanding of the time and frequency domain resources occupied by the third channel transmission.
- the target AP set sends a fourth channel to the terminal, providing the configuration information required for the random access process, namely, the first random access resource configuration information.
- the terminal device receives a fourth channel, such as a PDSCH, sent by the target AP set at a fourth time domain position and a fourth frequency domain position, where the fourth channel carries second information, and the second information includes at least one of the following:
- the frequency domain position and bandwidth information of the initial downlink BWP where the initial downlink BWP is the frequency range in which the downlink channel is transmitted during the random access process;
- the frequency domain position and bandwidth information of the initial uplink BWP where the initial uplink BWP is the frequency range in which the uplink channel is transmitted during the random access process;
- Time domain position information corresponding to the fourth channel for example, a radio frame index, a time slot index, and a symbol index corresponding to the fourth channel transmission, so that the terminal device completes radio frame timing, time slot timing, and symbol timing after receiving the fourth channel;
- the RAR message of the terminal for example, the RAR message for the terminal sending the third channel.
- the RAR message includes a timing advance (TA) for the terminal, that is, a second TA, uplink grant scheduling information, and a temporary identifier used in a random access procedure.
- TA timing advance
- the terminal device After the terminal device receives the fourth channel sent by the target AP set, it can obtain the configuration information required for the random access process, thereby completing the random access process with the target AP set and establishing an association relationship with the target AP set, as shown in FIG13, including:
- the AP set sends a first channel for downlink time and frequency synchronization and signal strength measurement.
- the terminal device sends a third channel for uplink time synchronization and requesting to establish an association with a target AP set.
- the AP group sends a fourth channel to provide configuration information required for the random access process.
- the configuration information required for the random access process is the first random access process configuration information.
- the random access process is completed through the first random access process configuration information, thereby establishing an association relationship between the AP set and the terminal device.
- the terminal device In order to determine the fourth time domain position and the fourth frequency domain position, the terminal device needs to listen to the fifth channel, such as PDCCH, at the fifth time domain position and the fifth frequency domain position before receiving the fourth channel.
- the fifth channel is used to schedule the fourth channel, so the fifth channel carries at least one of the following information: the fourth time domain position, the fourth frequency domain position, the size of the time domain resources occupied by the fourth channel transmission, and the size of the frequency domain resources occupied by the fourth channel transmission.
- the fourth time domain position can be determined based on the fifth time domain offset, and the fifth time domain offset can be the number of time domain units of the fourth channel relative to the fifth channel, such as the number of offset time slots and symbols; the fourth time domain position can also be a specified time domain unit index, such as a specified time slot and symbol index.
- the fourth frequency domain position can be determined based on the fifth frequency domain offset, and the fifth frequency domain offset can be the number of frequency domain units of the fourth channel relative to the fifth channel, such as the number of offset RBs and subcarriers; the fourth frequency domain position can also be a frequency domain unit index specified in the initial downlink BWP, such as a specified RB and subcarrier index.
- the terminal receives the sixth channel, such as PBCH, at the sixth time domain position and the sixth frequency domain position after sending the third channel and before monitoring the fifth channel.
- the sixth channel is used to determine the time-frequency domain resources and position information of the fifth channel. Therefore, the sixth channel carries at least one of the following information: the fifth time domain position, the fifth frequency domain position, the size of the time domain resources occupied by the fifth channel transmission, the size of the frequency domain resources occupied by the fifth channel transmission, and the position of the time domain resources corresponding to the sixth channel.
- the terminal device can complete the wireless frame timing, time slot timing and symbol timing after receiving the sixth channel.
- the fifth time domain position can be determined based on the seventh time domain offset, which can be the number of time domain units of the fifth channel offset relative to the sixth channel, such as the number of offset time slots and symbols; the fifth time domain position can also be a specified time domain unit index, such as a specified time slot and symbol index.
- the fifth frequency domain position can be determined based on the seventh frequency domain offset, which is the number of frequency domain units of the fifth channel offset relative to the sixth channel, such as the number of offset RBs and subcarriers; the fifth frequency domain position can also be a frequency domain unit index specified in the initial downlink BWP, such as a specified RB and subcarrier index.
- the sixth time domain position can be determined based on the eighth time domain offset or the ninth time domain offset, the eighth time domain offset or the ninth time domain offset is the number of time domain units of the sixth channel offset relative to the first channel or the third channel, such as the number of offset time slots and symbols; the sixth time domain position can also be a specified time domain unit index, such as a specified time slot and symbol index.
- the sixth frequency domain position can be determined based on the eighth frequency domain offset or the ninth frequency domain offset, the eighth frequency domain offset or the ninth frequency domain offset is the number of frequency domain units of the sixth channel offset relative to the first channel or the third channel, such as the number of offset RBs and subcarriers; the sixth frequency domain position can also be a frequency domain unit index specified in the initial downlink BWP, such as a specified RB and subcarrier index.
- the sixth time domain position, the sixth frequency domain position, and the size of the time domain resources and the size of the frequency domain resources corresponding to the sixth channel transmission are provided through the first signal channel, as shown in Figure 14.
- the transmission delay of the NTN system is usually several milliseconds to several hundred milliseconds.
- the terminal needs to adjust the TA before sending the uplink channel, and the acquisition of the TA, i.e., the first TA, in the NTN system needs to be based on at least one of the following information: satellite ephemeris information and public TA information.
- the information required for obtaining the TA in the NTN system can be provided through the first channel, so that the terminal can obtain the TA after receiving the first channel, and send the third channel to the target AP set after the TA is adjusted to complete the subsequent random access process.
- the information required for obtaining TA in the NTN system can also be provided through the fourth channel.
- the terminal before sending the third channel, the terminal first receives the fourth channel at the second time domain position. If the fourth channel sent by the AP set is received and the TA information provided by the fourth channel is obtained, the third channel can be sent to the target AP set after the TA is adjusted to complete the subsequent random access process. In other embodiments, the terminal does not adjust the TA to send the third channel to the target AP set. In this case, the AP set needs to consider the transmission. The terminal detects the third channel at the first time domain position after the delay, and provides TA information in the fourth channel. The terminal can then adjust the TA for uplink transmission after the fourth channel to complete the subsequent random access process.
- Embodiment 2 Updating the AP set associated with the terminal device, i.e., the target AP set
- a terminal device After a terminal device establishes an association with an AP set consisting of one or more APs through a random access process, considering the mobility of the AP and the terminal device, it is necessary to manage the AP set associated with the terminal device, for example, continuously updating the AP set associated with the terminal to ensure that the terminal device is always served by one or more APs with better channel conditions.
- the management of the AP set can be carried out through the measurement of the first channel and/or CSI-RS, and the RSRP and/or SINR measurement results can be used as metrics.
- the CPU uses the M APs in the network as the candidate service AP set of the terminal, and allocates independent first channel resources and/or CSI-RS resources to the APs in the set for association.
- the terminal reports third information to the network based on the measurement results of the first channel and/or CSI-RS, and the third information includes K ⁇ 1 first channel resource indication information and/or CSI-RS resource indication information, and corresponding RSRP and/or SINR measurement results.
- the CPU determines the AP set associated with the terminal based on the third information reported by the terminal and the association relationship between the AP and the first channel resources and/or CSI-RS resources.
- M APs constitute the terminal candidate service AP set, i.e., the candidate AP set
- K APs constitute the terminal associated AP set, i.e., the target AP set.
- the M APs in the candidate AP set include the K APs in the target AP set.
- the management of the AP set can also be performed through the measurement of the third channel and/or SRS, and the RSRP and/or SINR measurement results are used as the metric.
- the CPU uses M APs in the network as the candidate service AP set of the terminal, receives the third channel and/or SRS sent by the terminal, and the CPU determines the AP set associated with the terminal based on the RSRP and/or SINR measurement results of the M APs.
- the transmission delays between different APs and terminals in the NTN system vary greatly, so the terminal needs to consider the transmission delays of different APs when performing first channel and/or CSI-RS measurements.
- the AP indicates the association between the first channel resources and/or CSI-RS resources and the ephemeris information to the terminal.
- the terminal measures the first channel and/or CSI-RS, it first calculates the transmission delay based on the ephemeris information associated with the first channel resources and/or CSI-RS resources, and performs the first channel measurement and/or CSI-RS measurement at the time domain position after considering the influence of the propagation delay.
- AP#1 and AP#2 in the candidate service AP set are associated with CSI-RS resource #1 and CSI-RS resource #2, respectively, and the terminal is notified of the ephemeris information of AP#1 and AP#2.
- the terminal performs CSI-RS measurement, it first calculates the transmission delays T1 and T2 respectively according to the ephemeris information of AP#1 and AP#2, and then delays the measurement of CSI-RS#2 by an additional time length of T2-T1 relative to the measurement of CSI-RS#1.
- the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.
- downlink indicates that the transmission direction of the signal or data
- uplink is used to indicate that the transmission direction of the signal or data is the second direction sent from the user equipment of the cell to the site
- side is used to indicate that the transmission direction of the signal or data is the third direction sent from user equipment 1 to user equipment 2.
- downlink signal indicates that the transmission direction of the signal is the first direction.
- the term "and/or” is only a description of the association relationship of the associated objects, indicating that three relationships can exist. Specifically, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character “/" in this article generally indicates that the front and back associated objects are in an "or" relationship.
- FIG. 16 is a schematic diagram of the structure of a wireless communication terminal device provided in an embodiment of the present application. As shown in FIG. 16 , the device includes:
- the first communication 1601 is configured to receive at least one first channel sent by a first access device set, wherein the first access device set includes at least one access device, and the at least one first channel sent by the first access device set is used to determine whether the first access device set is a target access device set, and the target access device set is used to communicate data with the terminal device.
- the first received power is used to determine whether the first access device set is the target access device set.
- the first receiving power is determined based on the receiving power of the first channel sent by the first access device set and received by the terminal device.
- the first channel carries a downlink synchronization signal
- the downlink synchronization signal is used for downlink synchronization between the terminal device and a set of access devices that send the first channel.
- downlink synchronization signals in the first channel sent by different access device sets are sent using different first pseudo-random sequences.
- the first channel carries at least one of:
- the first indication information indicates a position of a first resource, where the first resource is a resource occupied by transmission of the first channel, and the position of the first resource is used for time domain positioning and/or frequency domain positioning;
- the second indication information indicates a second resource, where the second resource is a resource occupied by transmission of a second channel, and the second channel is a wireless channel subsequent to the first channel;
- the first information is used by the terminal device to determine a first timing advance TA.
- the first communication unit 1601 is further configured to send a third channel to the first access device set if it is determined that the first access device set is the target access device set, and the third channel is used for the terminal device to establish an association relationship with the first access device set.
- the third channel carries an uplink synchronization signal, and the uplink synchronization signal is used for uplink synchronization between the terminal device and the target access device set.
- the third resource occupied by the third channel transmission is determined based on at least one of the following:
- the first resource is a resource occupied by transmission of the first channel
- the first offset is an offset of the third resource relative to the first resource in the time domain and/or frequency domain
- the third indication information is used to indicate the position and/or size of the third resource in the frequency domain and/or time domain.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the third indication information is the third indication information.
- the first communication unit 1601 is also configured to receive a fourth channel sent by the first access device set, and the fourth channel is used to carry first random access configuration information corresponding to the first access device set, and the first random access configuration information is used for the random access process of the terminal device accessing the first access device set.
- the first random access configuration information includes at least one of the following:
- a first frequency range where the first frequency range is a frequency range in which downlink channel transmission occurs during a random access process
- the second frequency range is a frequency range in which uplink channel transmission in a random access process occurs.
- the fourth channel is further used to carry at least one of the following:
- Fourth indication information where the fourth indication information is used to indicate a time domain position of a fourth resource, where the fourth resource is a resource occupied by transmission of the fourth channel, and the time domain position of the fourth resource is used for time domain positioning;
- First information where the first information is used by the terminal device to determine a first TA
- the first TA is used to adjust a sending time of a first uplink transmission, where the first uplink transmission is an uplink transmission after receiving the first information.
- the reception of the fourth channel precedes the sending of the third channel
- the third channel is a channel sent by the terminal device to the first access device set when the first access device set is determined to be the target access device set, and the third channel is used for the terminal device to establish an association relationship with the target access device set;
- the transmission of the third channel precedes the reception of the fourth channel.
- the fourth resource occupied by the transmission of the fourth channel is determined based on at least one of the following:
- first resource is a resource occupied by transmission of the first channel
- second offset is an offset of the fourth resource relative to the first resource in the time domain and/or frequency domain
- the third resource is a resource occupied by transmission of a third channel before the fourth channel
- the third offset is an offset of the fourth resource relative to the third resource in the time domain and/or frequency domain
- fifth indication information where the fifth indication information is used to indicate a position and/or size of the fourth resource in the frequency domain and/or time domain;
- a fifth channel is used to schedule the fourth channel.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the fifth indication information is the fifth indication information.
- the fifth channel includes at least one of the following:
- sixth indication information where the sixth indication information is used to indicate a position and/or size of the fourth resource in the frequency domain and/or time domain;
- a fourth offset where the fourth offset is an offset of the fourth resource relative to the fifth resource occupied by the transmission of the fifth channel in the time domain and/or frequency domain.
- the fifth resource occupied by the transmission of the fifth channel is determined based on at least one of the following:
- the first resource and a fifth offset wherein the fifth offset is an offset of the fifth resource relative to the first resource in the time domain and/or frequency domain;
- the third resource and a sixth offset wherein the sixth offset is an offset of the fifth resource relative to the third resource in the time domain and/or frequency domain;
- the seventh indication information is used to indicate a position and/or size of the fifth resource in the time domain and/or frequency domain;
- a sixth channel wherein the sixth channel is used to indicate a position and/or size of the fifth resource in the time domain and/or frequency domain.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the seventh indication information is the seventh indication information.
- the sixth channel includes at least one of the following:
- Eighth indication information where the eighth indication information is used to indicate a position and/or size of the fifth resource in the time domain and/or frequency domain;
- the seventh offset is an offset of the fifth resource relative to a sixth resource occupied by transmission of the sixth channel in the time domain and/or frequency domain;
- the ninth indication information is used to indicate the position of the sixth resource, and the position of the sixth resource is used for time domain positioning and/or frequency domain positioning.
- the sixth resource occupied by the transmission of the sixth channel is determined based on at least one of the following:
- the first resource and an eighth offset being an offset of the sixth resource relative to the first resource in the time domain and/or frequency domain;
- the third resource and a ninth offset wherein the ninth offset is an offset of the sixth resource relative to the third resource in the time domain and/or frequency domain;
- the tenth indication information is used to indicate the position and/or size of the sixth resource in the time domain and/or frequency domain.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the tenth indication information The tenth indication information.
- the first communication unit 1601 is further configured to send or receive a seventh channel if it is determined that the first access device set is the target access device set, and the seventh channel is used to update the access devices included in the target access device set.
- measurement results corresponding to access devices in a candidate access device set are used to update the target access device set, and the candidate access device set includes access devices in the first access device set.
- the measurement result includes at least one of the following:
- the seventh channel includes at least one of the following:
- the downlink measurement channel includes one of the following:
- the uplink measurement channel includes one of the following:
- a third channel wherein the third channel is used for the terminal device to establish an association relationship with the target access device set;
- FIG. 17 is a schematic diagram of the structure of a first access device provided in an embodiment of the present application. As shown in FIG. 17 , the device includes:
- the second communication unit 1701 is configured to send a first channel to a terminal device, to which the first access device belongs, the first access device set including at least one access device, and at least one first channel sent by the first access device set is used to determine whether the first access device set is a target access device set, and the target access device set is used to communicate data with the terminal device.
- a first receiving power is used to determine whether the first access device set is the target access device set, and the first receiving power is determined based on the receiving power of the first channel sent by the first access device set and received by the terminal device.
- the first channel carries a downlink synchronization signal
- the downlink synchronization signal is used for downlink synchronization between the terminal device and a set of access devices that send the first channel.
- downlink synchronization signals in the first channel sent by different access device sets are sent using different first pseudo-random sequences.
- the first channel carries at least one of:
- the first indication information indicates a position of a first resource, where the first resource is a resource occupied by transmission of the first channel, and the position of the first resource is used for time domain positioning and/or frequency domain positioning;
- the second indication information indicates a second resource, where the second resource is a resource occupied by transmission of a second channel, and the second channel is a wireless channel subsequent to the first channel;
- the first information is used by the terminal device to determine a first timing advance TA.
- the second communication unit 1701 is further configured to receive a third channel sent by the terminal device if it is determined that the first access device set is the target access device set, and the third channel is used for the terminal device to establish an association relationship with the first access device set.
- the third channel carries an uplink synchronization signal, and the uplink synchronization signal is used for uplink synchronization between the terminal device and the target access device set.
- the third resource occupied by the third channel transmission is determined based on at least one of the following:
- the first resource is a resource occupied by transmission of the first channel
- the first offset is an offset of the third resource relative to the first resource in the time domain and/or frequency domain
- the third indication information is used to indicate the position and/or size of the third resource in the frequency domain and/or time domain.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the third indication information is the third indication information.
- the second communication unit 1701 is also configured to send a fourth channel to the terminal device, and the fourth channel is used to carry first random access configuration information corresponding to the first access device set, and the first random access configuration information is used for the random access process of the terminal device accessing the first access device set.
- the first random access configuration information includes at least one of the following:
- a first frequency range where the first frequency range is a frequency range in which downlink channel transmission occurs during a random access process
- the second frequency range is a frequency range in which uplink channel transmission in a random access process occurs.
- the fourth channel is further used to carry at least one of the following:
- Fourth indication information where the fourth indication information is used to indicate a time domain position of a fourth resource, where the fourth resource is a resource occupied by transmission of the fourth channel, and the time domain position of the fourth resource is used for time domain positioning;
- First information where the first information is used by the terminal device to determine a first TA
- the first TA is used to adjust a sending time of a first uplink transmission, where the first uplink transmission is an uplink transmission after receiving the first information.
- the fourth channel is received before the third channel is sent, and the third channel is used to determine the first a channel sent by the terminal device to the first access device set when the access device set is the target access device set, and the third channel is used for the terminal device to establish an association relationship with the target access device set; or,
- the transmission of the third channel precedes the reception of the fourth channel.
- the fourth resource occupied by the transmission of the fourth channel is determined based on at least one of the following:
- first resource is a resource occupied by transmission of the first channel
- second offset is an offset of the fourth resource relative to the first resource in the time domain and/or frequency domain
- the third resource is a resource occupied by transmission of a third channel before the fourth channel
- the third offset is an offset of the fourth resource relative to the third resource in the time domain and/or frequency domain
- fifth indication information where the fifth indication information is used to indicate a position and/or size of the fourth resource in the frequency domain and/or time domain;
- a fifth channel is used to schedule the fourth channel.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the fifth indication information is the fifth indication information.
- the fifth channel includes at least one of the following:
- sixth indication information where the sixth indication information is used to indicate a position and/or size of the fourth resource in the frequency domain and/or time domain;
- a fourth offset where the fourth offset is an offset of the fourth resource relative to the fifth resource occupied by the transmission of the fifth channel in the time domain and/or frequency domain.
- the fifth resource occupied by the transmission of the fifth channel is determined based on at least one of the following:
- the first resource and a fifth offset wherein the fifth offset is an offset of the fifth resource relative to the first resource in the time domain and/or frequency domain;
- the third resource and a sixth offset wherein the sixth offset is an offset of the fifth resource relative to the third resource in the time domain and/or frequency domain;
- the seventh indication information is used to indicate a position and/or size of the fifth resource in the time domain and/or frequency domain;
- a sixth channel wherein the sixth channel is used to indicate a position and/or size of the fifth resource in the time domain and/or frequency domain.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the seventh indication information is the seventh indication information.
- the sixth channel includes at least one of the following:
- Eighth indication information where the eighth indication information is used to indicate a position and/or size of the fifth resource in the time domain and/or frequency domain;
- the seventh offset is an offset of the fifth resource relative to a sixth resource occupied by transmission of the sixth channel in the time domain and/or frequency domain;
- the ninth indication information is used to indicate the position of the sixth resource, and the position of the sixth resource is used for time domain positioning and/or frequency domain positioning.
- the sixth resource occupied by the transmission of the sixth channel is determined based on at least one of the following:
- the first resource and an eighth offset being an offset of the sixth resource relative to the first resource in the time domain and/or frequency domain;
- the third resource and a ninth offset wherein the ninth offset is an offset of the sixth resource relative to the third resource in the time domain and/or frequency domain;
- the tenth indication information is used to indicate the position and/or size of the sixth resource in the time domain and/or frequency domain.
- At least one of the following is agreed upon by the protocol or indicated by the first channel:
- the tenth indication information The tenth indication information.
- the second communication unit 1701 is further configured to: if it is determined that the first access device set is the target access device set, The target access device set receives or sends a seventh channel, where the seventh channel is used to update the access devices included in the target access device set.
- measurement results corresponding to access devices in a candidate access device set are used to update the target access device set, and the candidate access device set includes access devices in the first access device set.
- the measurement result includes at least one of the following:
- the seventh channel includes at least one of the following:
- the downlink measurement channel includes one of the following:
- the uplink measurement channel includes one of the following:
- a third channel wherein the third channel is used for the terminal device to establish an association relationship with the target access device set;
- FIG18 is a schematic structural diagram of a communication device 1800 provided in an embodiment of the present application.
- the communication device may be a terminal device or a first access device.
- the communication device 1800 shown in FIG18 includes a processor 1810, which may call and run a computer program from a memory to implement the method in an embodiment of the present application.
- the communication device 1800 may further include a memory 1820.
- the processor 1810 may call and run a computer program from the memory 1820 to implement the method in the embodiment of the present application.
- the memory 1820 may be a separate device independent of the processor 1810 , or may be integrated into the processor 1810 .
- the communication device 1800 may further include a transceiver 1830 , and the processor 1810 may control the transceiver 1830 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.
- the transceiver 1830 may include a transmitter and a receiver.
- the transceiver 1830 may further include an antenna, and the number of antennas may be one or more.
- the communication device 1800 may specifically be the first access device of the embodiment of the present application, and the communication device 1800 may implement the corresponding processes implemented by the first access device in each method of the embodiment of the present application, which will not be described again for the sake of brevity.
- the communication device 1800 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 1800 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which will not be described again for the sake of brevity.
- Fig. 19 is a schematic structural diagram of a chip according to an embodiment of the present application.
- the chip 1900 shown in Fig. 19 includes a processor 1910, and the processor 1910 can call and run a computer program from a memory to implement the method according to the embodiment of the present application.
- the chip 1900 may further include a memory 1920.
- the processor 1910 may call and run a computer program from the memory 1920 to implement the method in the embodiment of the present application.
- the memory 1920 may be a separate device independent of the processor 1910 , or may be integrated into the processor 1910 .
- the chip 1900 may further include an input interface 1930.
- the processor 1910 may control the input interface 1930 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.
- the chip 1900 may further include an output interface 1940.
- the processor 1910 may control the output interface 1940 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
- the chip can be applied to the first access device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the first access device in each method of the embodiment of the present application.
- the chip can be applied to the first access device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the first access device in each method of the embodiment of the present application.
- the chip can implement the corresponding processes implemented by the first access device in each method of the embodiment of the present application.
- the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
- the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
- FIG20 is a schematic block diagram of a communication system 2000 provided in an embodiment of the present application. As shown in FIG20 , the communication system 2000 includes a terminal device 2010 and a first access device 2020 .
- the terminal device 2010 can be used to implement the corresponding functions implemented by the terminal device in the above method
- the first access device 2020 can be used to implement the corresponding functions implemented by the first access device in the above method.
- the terminal device 2010 can be used to implement the corresponding functions implemented by the terminal device in the above method
- the first access device 2020 can be used to implement the corresponding functions implemented by the first access device in the above method.
- the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities.
- each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or the instruction in the form of software.
- the above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- FPGA Field Programmable Gate Array
- the methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general processor can be a microprocessor or the processor can also be any conventional processor, etc.
- the steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to execute, or the hardware and software modules in the decoding processor can be executed.
- the software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
- the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories.
- the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
- the volatile memory can be a random access memory (RAM), which is used as an external cache.
- RAM Direct Rambus RAM
- SRAM Static RAM
- DRAM Dynamic RAM
- SDRAM Synchronous DRAM
- DDR SDRAM Double Data Rate SDRAM
- ESDRAM Enhanced SDRAM
- SLDRAM Synchlink DRAM
- DR RAM Direct Rambus RAM
- the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.
- An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.
- the computer-readable storage medium can be applied to the first access device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first access device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
- the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
- An embodiment of the present application also provides a computer program product, including computer program instructions.
- the computer program product can be applied to the first access device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first access device in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.
- the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
- the embodiment of the present application also provides a computer program.
- the computer program can be applied to the first access device in the embodiments of the present application.
- the computer program runs on a computer, the computer executes the corresponding processes implemented by the first access device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
- the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application.
- the computer executes the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.
- the disclosed systems, devices and methods can be implemented in other ways.
- the device embodiments described above are only schematic.
- the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
- Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
- the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art.
- the computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.
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Abstract
本申请实施例提供一种无线通信方法及设备、存储介质,该方法包括:终端设备接收第一接入设备集合发送的至少一个第一信道,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的所述第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
Description
本申请实施例涉及移动通信技术领域,具体涉及一种无线通信方法及设备、存储介质。
去蜂窝无线接入网是指由大量分布式低成本和低功耗的无线接入点(Access Point,AP)组成的网络,其中,AP可以完成例如无线信号的收发、信道估计、下行预编码和上行信号检测等简单的物理层功能。另外,不同AP通过回程链路连接到一个或多个中央控制设备,中央控制设备可以完成例如对AP的数据分发与合并、信号调制解调、信息比特编译码等复杂的物理层功能,从而实现所有AP联合为每个终端同时提供服务。但所有AP联合同时为终端提供服务,则存在信令开销大和计算复杂度高的问题。
发明内容
本申请实施例提供一种无线通信方法及设备、存储介质。
本申请实施例提供的无线通信方法,包括:
终端设备接收第一接入设备集合发送的至少一个第一信道,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的所述至少一个第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
本申请实施例提供的无线通信方法,包括:
第一接入设备向终端设备发送第一信道,所述第一接入设备属于第一接入设备集合,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的至少一个所述第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
本申请实施例提供的终端设备,包括:
第一通信单元,配置为终端设备接收第一接入设备集合发送的至少一个第一信道,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的所述至少一个第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
本申请实施例提供的第一接入点,包括:
第二通信单元,配置为向终端设备发送第一信道,所述第一接入设备属于第一接入设备集合,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的至少一个所述第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
本申请实施例提供的通信设备,可以是上述方案中的终端设备或者是上述方案中的第一接入点,该通信设备包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述的无线通信方法。
本申请实施例提供的芯片,用于实现上述的无线通信方法。
具体地,该芯片包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该芯片的设备执行上述的无线通信方法。
本申请实施例提供的计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述的无线通信方法。
本申请实施例提供的计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行上述的无线通信方法。
本申请实施例提供的计算机程序,当其在计算机上运行时,使得计算机执行上述的无线通信方法。
通过上述技术方案,终端设备基于接收的第一接入设备集合发送的至少一个第一信道确定该第一接入设备集合是否为与所述终端设备进行数据通信的目标接入设备集合,从而基于接入设备集合为终端设备提供服务,不要所有的接入设备为该终端设备提供服务,在实现较好的网络扩展性的同时,减小信令开销,降低计算复杂度。
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1是本申请实施例的一个应用场景的示意图;
图2是本申请实施例提供的另一种通信系统的架构示意图;
图3是本申请实施例提供的另一种通信系统的架构示意图;
图4是本申请实施例提供的基于透传转发卫星的NTN场景的示意图;
图5是本申请实施例提供的基于再生转发卫星的NTN场景的示意图;
图6是本申请实施例的去蜂窝无线接入网络的可选地结构示意图;
图7是本申请实施例的无线通信方法的可选地流程示意图;
图8是本申请实施例的无线通信方法的可选地流程示意图;
图9是本申请实施例的无线通信方法的可选地流程示意图;
图10是本申请实施例的无线通信方法的可选地流程示意图;
图11是本申请实施例的第一信道的可选地交互流程示意图;
图12是本申请实施例的第三信道的位置可选地示意图;
图13是本申请实施例的无线通信方法的可选地流程示意图;
图14是本申请实施例的第四信道的位置可选地示意图;
图15是本申请实施例的候选AP集合的可选地结构示意图;
图16是本申请实施例的终端设备的可选地结构示意图;
图17是本申请实施例的第一AP的可选地结构示意图;
图18是本申请实施例提供的一种通信设备示意性结构图;
图19是本申请实施例的芯片的示意性结构图;
图20是本申请实施例提供的一种通信系统的示意性框图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
图1是本申请实施例的一个应用场景的示意图。
如图1所示,通信系统100可以包括终端设备110和网络设备120。网络设备120可以通过空口与终端设备110通信。终端设备110和网络设备120之间支持多业务传输。
应理解,本申请实施例仅以通信系统100进行示例性说明,但本申请实施例不限定于此。也就是说,本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(Long Term Evolution,LTE)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、物联网(Internet of Things,IoT)系统、窄带物联网(Narrow Band Internet of Things,NB-IoT)系统、增强的机器类型通信(enhanced Machine-Type Communications,eMTC)系统、第五代(5th generation,5G)通信系统(也称为新无线(New Radio,NR)通信系统),或未来的通信系统等。
在图1所示的通信系统100中,网络设备120可以是与终端设备110通信的接入网设备。接入网设备可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备110(例如用户设备(User Equipment,UE))进行通信。
网络设备120可以是长期演进(Long Term Evolution,LTE)系统中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是下一代无线接入网(Next Generation Radio Access Network,NG RAN)设备,或者是NR系统中的基站(gNB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)
中的无线控制器,或者该网络设备120可以为中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
终端设备110可以是任意终端设备,其包括但不限于与网络设备120或其它终端设备采用有线或者无线连接的终端设备。
例如,所述终端设备110可以指接入终端、UE、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、IoT设备、卫星手持终端、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、5G网络中的终端设备或者未来演进网络中的终端设备等。
终端设备110可以用于设备到设备(Device to Device,D2D)的通信。
无线通信系统100还可以包括与基站进行通信的核心网设备130,该核心网设备130可以是5G核心网(5G Core,5GC)设备,例如,接入与移动性管理功能(Access and Mobility Management Function,AMF),又例如,认证服务器功能(Authentication Server Function,AUSF),又例如,用户面功能(User Plane Function,UPF),又例如,会话管理功能(Session Management Function,SMF)。可选地,核心网络设备130也可以是LTE网络的分组核心演进(Evolved Packet Core,EPC)设备,例如,会话管理功能+核心网络的数据网关(Session Management Function+Core Packet Gateway,SMF+PGW-C)设备。应理解,SMF+PGW-C可以同时实现SMF和PGW-C所能实现的功能。在网络演进过程中,上述核心网设备也有可能叫其它名字,或者通过对核心网的功能进行划分形成新的网络实体,对此本申请实施例不做限制。
通信系统100中的各个功能单元之间还可以通过下一代网络(next generation,NG)接口建立连接实现通信。
例如,终端设备通过Uu接口与接入网设备建立空口连接,用于传输用户面数据和控制面信令;终端设备可以通过NG接口1(简称N1)与AMF建立控制面信令连接;接入网设备例如下一代无线接入基站(gNB),可以通过NG接口3(简称N3)与UPF建立用户面数据连接;接入网设备可以通过NG接口2(简称N2)与AMF建立控制面信令连接;UPF可以通过NG接口4(简称N4)与SMF建立控制面信令连接;UPF可以通过NG接口6(简称N6)与数据网络交互用户面数据;AMF可以通过NG接口11(简称N11)与SMF建立控制面信令连接;SMF可以通过NG接口7(简称N7)与PCF建立控制面信令连接。
图1示例性地示出了一个基站、一个核心网设备和两个终端设备,可选地,该无线通信系统100可以包括多个基站并且每个基站的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
3GPP正在研究非地面通信网络(Non Terrestrial Network,NTN)技术,NTN一般采用卫星通信的方式向地面用户提供通信服务。相比地面蜂窝网通信,卫星通信具有很多独特的优点。首先,卫星通信不受用户地域的限制,例如一般的陆地通信不能覆盖海洋、高山、沙漠等无法搭设通信设备或由于人口稀少而不做通信覆盖的区域,而对于卫星通信来说,由于一颗卫星即可以覆盖较大的地面,加之卫星可以围绕地球做轨道运动,因此理论上地球上每一个角落都可以被卫星通信覆盖。其次,卫星通信有较大的社会价值。卫星通信在边远山区、贫穷落后的国家或地区都可以以较低的成本覆盖到,从而使这些地区的人们享受到先进的语音通信和移动互联网技术,有利于缩小与发达地区的数字鸿沟,促进这些地区的发展。再次,卫星通信距离远,且通信距离增大通讯的成本没有明显增加;最后,卫星通信的稳定性高,不受自然灾害的限制。
NTN技术可以和各种通信系统结合。例如,NTN技术可以和NR系统结合为NR-NTN系统。又例如,NTN技术可以和物联网(Internet of Things,IoT)系统结合为IoT-NTN系统。作为示例,IoT-NTN系统可以包括NB-IoT-NTN系统和eMTC-NTN系统。
图2是本申请实施例提供的另一种通信系统的架构示意图。
如图2所示,包括终端设备1101和卫星1102,终端设备1101和卫星1102之间可以进行无线通信。终端设备1101和卫星1102之间所形成的网络还可以称为NTN。在图2所示的通信系统的架构中,卫星1102可以具有基站的功能,终端设备1101和卫星1102之间可以直接通信。在系统架构下,可以将卫星1102称为网络设备。在本申请的一些实施例中,通信系统中可以包括多个网络设备1102,并且每个网络设备1102的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
图3是本申请实施例提供的另一种通信系统的架构示意图。
如图3所示,包括终端设备1201、卫星1202和基站1203,终端设备1201和卫星1202之间可以进行无线通信,卫星1202与基站1203之间可以通信。终端设备1201、卫星1202和基站1203之间所形成的网络还可以称为NTN。在图3所示的通信系统的架构中,卫星1202可以不具有基站的功能,终端设备1201和基站1203之间的通信需要通过卫星1202的中转。在该种系统架构下,可以将基站1203称为网络设备。在本申请的一些实施例中,通信系统中可以包括多个网络设备1203,并且每个网络设备1203的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。所述网络设备1203可以是图1中的网络设备120。
应理解,上述卫星1102或卫星1202包括但不限于:
低地球轨道(Low-Earth Orbit,LEO)卫星、中地球轨道(Medium-Earth Orbit,MEO)卫星、地球同步轨道(Geostationary Earth Orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等等。卫星可采用多波束覆盖地面,例如,一颗卫星可以形成几十甚至数百个波束来覆盖地面。换言之,一个卫星波束可以覆盖直径几十至上百公里的地面区域,以保证卫星的覆盖以及提升整个卫星通信系统的系统容量。
作为示例,LEO卫星的高度范围可以为500千米~1500千米,相应轨道周期约可以为1.5小时~2小时,用户间单跳通信的信号传播延迟一般可小于20毫秒,最大卫星可视时间可以为20分钟,LEO卫星的信号传播距离短且链路损耗少,对用户终端的发射功率要求不高。GEO卫星的轨道高度可以35786km,围绕地球旋转周期可以为24小时,用户间单跳通信的信号传播延迟一般可为250毫秒。
为了保证卫星的覆盖以及提升整个卫星通信系统的系统容量,卫星采用多波束覆盖地面,一颗卫星可以形成几十甚至数百个波束来覆盖地面;一个卫星波束可以覆盖直径几十至上百公里的地面区域。
卫星从其提供的功能上可以分为透传转发(transparent payload)和再生转发(regenerative payload)两种。对于透传转发卫星,只提供无线频率滤波,频率转换和放大的功能,只提供信号的透明转发,不会改变其转发的波形信号。对于再生转发卫星,除了提供无线频率滤波,频率转换和放大的功能,还可以提供解调/解码,路由/转换,编码/调制的功能,其具有基站的部分或者全部功能。
在NTN中,可以包括一个或多个网关(Gateway),用于卫星和终端之间的通信。
图4和图5分别示出了基于透传转发卫星和再生转发卫星的NTN场景的示意图。
如图4所示,对于基于透传转发卫星的NTN场景,网关和卫星之间通过馈线链路(Feeder link)进行通信,卫星和终端之间可以通过服务链路(service link)进行通信。如图5所示,对于基于再生转发卫星的NTN场景,卫星和卫星之间通过星间(InterStar link)进行通信,网关和卫星之间通过馈线链路(Feeder link)进行通信,卫星和终端之间可以通过服务链路(service link)进行通信。
为便于理解本申请实施例的技术方案,以下对本申请实施例的相关技术进行说明,以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合,其均属于本申请实施例的保护范围。
需要说明的是,图1至图5只是以示例的形式示意本申请所适用的系统,当然,本申请实施例所示的方法还可以适用于其它系统。此外,本文中术语“系统”和“网络”在本文中常被可互换使用。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“/”,一般表示前后关联对象是一种“或”的关系。还应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。还应理解,在本申请的实施例中提到的“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。还应理解,在本申请的实施例中提到的“预定义”或“预定义规则”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。还应理解,本申请实施例中,所述"协议"可以指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议,本申请对此不做限定。
为便于理解本申请实施例的技术方案,以下对本申请实施例的相关技术进行说明,以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合,其均属于本申请实施例的保护范围。
去蜂窝无线接入网(cell-free RAN)定义
去蜂窝无线接入网:如图6所示的,由大量分布式低成本和低功耗的无线接入设备组成的网络,接入设备也可称为AP其中,AP可以完成例如无线信号的收发、信道估计、下行预编码和上行信号检测等简单的物理层功能。另外,如图6所示,不同AP通过回程链路连接到一个或多个中央处理设备(也可称为中央处理单元(Central Processing Unit,CPU)),其中,CPU可以完成例如对AP的数据分发与合并、信号调制解调、信息比特编译码等复杂的物理层功能,从而实现所有AP联合为每个终端同时提供服务。随着AP数量增加,小区边界的影响逐渐被消除,形成“去蜂窝”系统的概念,显著提升系统容量和频谱效率。
为便于理解本申请实施例的技术方案,以下通过具体实施例详述本申请的技术方案。以上相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合,其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。
本申请实施例提供的无线通信方法如图7所示,应用于终端设备,包括:
S701、终端设备接收第一接入设备集合发送的至少一个第一信道,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的所述至少一个第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
本申请实施例提供的无线通信方法如图8所示,应用于第一接入设备,包括:
S801、第一接入设备向终端设备发送第一信道,所述第一接入设备属于第一接入设备集合,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的至少一个所述第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
下面,对图7或图8所示的无线通信方法进行进一步描述。
本申请实施例中,去蜂窝无线接入网络中的接入设备被配置为至少两个接入设备集合即AP集合,一个AP集合包括至少一个AP,第一AP集合为至少两个AP集合中的任一AP集合。
本申请实施例中,可由中央处理设备对去蜂窝无线接入网中的AP进行AP集合的配置。在一些实施例中,可基于不同AP之间的距离进行AP集合的配置。在一示例中,一个AP集合存在一主AP,距离该主AP的距离在第一距离范围内的AP与该主AP属于同一AP集合。
第一AP发送第一信道,第一AP属于第一AP集合,在,第一AP发送第一信道的情况下,第一AP集合向终端设备发送至少一个第一信道,该至少一个第一信道用于终端设备确定所述第一AP集合是否为目标AP集合。
第一AP集合包括至少一个AP,第一AP集合发送的至少一个第一信道可理解为第一AP集合中的至少一个AP发送的至少一个第一信道,其中,一个AP发送一个第一信道。
本申请实施例中,终端设备进行第一信道的检测,当终端设备接收到一AP集合发送的至少一个第一信道,可认为接收到第一AP集合发送的至少一个第一信道。
本申请实施例中,终端设备可接收到第一AP集合发送的至少一个第一信道即一个或多个第一信道。
在一些实施例中,第一AP集合发送至少一个第一信道的方式包括以下之一:
发送方式一、第一AP集合的主AP发送第一信道;
发送方式二、第一AP集合中第一数量个AP中各AP发送一第一信道。
对于发送方式一,第一AP集合发送的第一信道仅包括一个第一信道,且有第一AP集合的主AP发送该第一信道,终端设备接收到第一AP集合发送的一个第一信道。此时,第一AP为第一AP集合中的主AP。
对于发送方式二,第一AP集合发送的第一信道包括第一数量个第一信道,第一数量大于1且小于或等于第二数量,第二数量为第一AP集合包括的AP的数量。其中,第一AP集合中发送第一信道的第一数量个AP包括第一AP集合的主AP和至少一个辅AP,辅AP为第一AP集合中除主AP之外的AP。终端设备接收到第一AP集合发送的第一数量个第一信道。此时,第一AP为第一AP集合中的任一发送第一信道的AP。
本申请实施例中,第一AP集合可周期性的发送第一信道,使得处于第一AP集合的覆盖范围内的终端设备能够接收到第一信道。
可理解的,去蜂窝无线接入网中的各AP集合周期性地发送第一信道,对于终端设备,能够检测到一个或多个AP集合发送的第一信道,这里,将终端设备检测到第一信道的AP集合称为第一AP集合。
终端设备接收到第一AP集合发送的至少一个第一信道后,通过接收到的至少一个第一信道判
断第一AP集合是否能够作为与终端设备进行数据通信的目标AP集合。
目标AP集合可理解为为终端设备提供服务的AP集合,去蜂窝无线网中目标AP集合以外的AP不为该终端设备提供服务。
本申请实施例中,终端设备在确定目标AP集合后,与目标AP集合建立关联关系,则终端设备与目标AP集合中的AP建立关联关系,目标AP集合中的AP与终端设备建立关联后向终端设备提供服务。
在一些实施例中,目标AP集合中的AP为终端设备提供的服务包括以下简单的物理层功能中的至少之一:无线信号的收发、信道估计、下行预编码和上行信号检测。此外,所述目标AP集合中的AP通过回程链路连接到一个或多个CPU,对所述目标AP集合中的AP发送或接收的所述终端设备的数据进行分发或合并,从而实现所述目标AP集合中的AP为所述终端设备联合提供服务。
可理解的,终端设备可接收到至少一个第一AP集合发送的第一信道,其中,一个第一AP集合发送至少一个第一信道。
若终端设备接收到一个第一AP集合发送的第一信道,则判断该第一AP集合是否能够为该终端设备对应的目标AP集合。
若终端设备接收到多个第一AP集合发送的第一信道,则判断该多个第一AP集合中各第一AP集合是否能够为该终端设备对应的目标AP集合,或从多个第一AP集合中选择能够作为目标AP集合的第一AP集合。
本申请实施例提供的无线通信方法,终端设备基于接收的第一AP集合发送的至少一个第一信道确定该第一AP集合是否为与所述终端设备进行数据通信的目标AP集合,从而基于AP集合为终端设备提供服务,不要所有的AP为该终端设备提供服务,在实现较好的网络扩展性的同时,减小信令开销,降低计算复杂度。
在一些实施例中,第一接收功率用于确定所述第一AP集合是否为所述目标AP集合,所述第一接收功率基于所述终端设备接收的所述第一AP集合发送的所述第一信道的接收功率确定。
可理解的,若第一AP集合发送的第一信道包括一个第一信道,则第一接收功率为终端设备接收的该第一信道的接收功率;若第一AP集合发送的第一信道包括多个第一信道,则第一接收功率基于该多个第一信道中各第一信道的接收功率即多个接收功率确定,在一示例中,第一接收功率为多个第一信道的多个接收功率中最大的接收功率,也可为多个接收功率加权后的接收功率。
在一些实施例中,所述第一接收功率满足一下至少之一,则确定所述第一AP集合为所述目标AP集合:
所述第一接收功率大于接收功率阈值;
所述第一接收功率为多个第一接收功率中的最大值。
在一示例中,终端设备接收到一个第一AP集合的第一信道,若该第一AP集合的第一接收功率大于接收功率阈值,则该第一AP集合为目标AP集合。
在一示例中,终端设备接收到多个第一AP集合的第一信道,则该多个第一AP集合的第一接收功率进行比较,将最大的第一接收功率对应的第一AP集合确定为目标AP集合。
在一示例中,终端设备接收到多个第一AP集合的第一信道,则该多个第一AP集合的第一接收功率进行比较,且将该多个第一AP集合的第一接收功率与接收功率阈值进行比较,将在最大的第一接收功率大于接收功率阈值的情况下,将该最大的第一接收功率对应的第一AP集合确定为目标AP集合。
本申请实施例提供的无线通信方法,基于第一AP集合的第一信道的接收功率确定的第一接收功率来判断该第一AP集合是否为目标AP集合,在第一AP集合与终端设备的距离影响第一接收功率的情况下,基于第一AP集合与终端设备的距离确定该第一AP集合能够作为目标AP集合,从而确定能够为终端设备提供优质服务的AP集合。
在一些实施例中,所述第一信道承载有下行同步信号,所述下行同步信号用于所述终端设备与发送所述第一信道的AP集合进行下行同步。
在第一信道承载有下行同步信号的情况下,若终端设备确定一第一AP集合为目标AP集合,则终端设备可通过该第一AP集合发送的第一信道承载的下行同步信号与该第一AP集合进行下行同步,从而实现与目标AP集合的下行同步。
可理解的,下行同步信号用于终端设备与相应的第一AP集合进行时频同步。
在一些实施例中,不同AP集合发送的所述第一信道中的下行同步信号使用不同的第一伪随机序列发送。
第一信道中下行同步信号中使用的第一伪随机序列用于终端设备识别发送第一信道的第一AP集合。
可理解的,一个AP集合中不同AP发送第一信道的情况下,该不同AP发送的第一信道承载的下行同步信号所使用的第一伪随机序列相同。
终端设备接收到第一信号后,通过第一信号中下行同步信号所使用的第一伪随机序列识别出发送该第一信道的AP集合。其中,终端设备可通过一AP集合对应的第一伪随机序列对第一信道进行同步信号的检测,若检测到存在同步信号,则确定接收到该第一AP集合发送的第一信道。
在一示例中,AP集合1对应的第一伪随机序列为序列A,AP集合2对应的第一伪随机序列为序列B,终端设备在检测第一信道承载的下行同步信号时,使用序列A和序列B进行下行同步信号的检测,若通过序列A检测到下行同步信号,则确定接收到AP集合1发送的下行同步信号;若通过序列A和序列B检测到下行同步信号,则确定接收到AP集合1和AP集合2发送的下行同步信号(包括AP集合1的下行同步信号1和AP集合2发送的下行同步信号2),且通过序列A和序列B区分出AP集合1的下行同步信号1和AP集合2发送的下行同步信号2。
本申请实施例中,第一伪随机序列包括的m序列、Gold序列等具有较好自相关和互相关特性的伪随机序列。
在一些实施例中,所述第一信道携带以下至少之一:
第一指示信息,所述第一指示信息指示第一资源的位置,所述第一资源为所述第一信道的传输占用的资源,所述第一资源的位置用于时域定位和/或频域定位;
第二指示信息,所述第二指示信息指示第二资源,所述第二资源为第二信道的传输占用的资源,所述第二信道为所述第一信道之后的无线信道;
第一信息,所述第一信息用于所述终端设备确定第一定时提前TA。
第一指示信息可指示第一时域位置和/或第一频域位置,第一时域位置为第一资源的时域位置,第一频域位置为第一资源的频域位置,第一时域位置用于终端设备时域定位,第二时域位置用于终端进行频域定位。
时域定位可理解为建立时间和时域单元之间的关系,时域单元包括以下至少之一:帧、子帧、时隙、符号,终端设备通过时域定位确定一个时间对应的时域单元。
频域定位可理解为建立频点和频域单元之间的关系,频域单元包括以下至少之一:调度块(SB)、资源块(RB)、资源元素(RE),终端设备通过频域定位确定一个频点对应的频域单元。
第二指示信息用于指示第二资源的位置和/或大小。其中,若第二指示信息指示第二资源的位置,第二指示信息可直接指示第二资源的位置,也可指示一偏移量,该偏移量为第二资源的位置相对于一参考信道在时域和/或频域上的偏移量。
本申请实施例中,第二信道可包括以下至少之一:第三信道、第四信道、第五信道、第六信道,相应的,第二资源包括以下至少之一:第三信道的传输占用的第三资源、第四信道的传输占用的第四资源、第五信道的传输占用的第五资源、第六信道的传输占用的第六资源。其中,第三信道为终端设备发送至目标AP集合的用于请求与目标AP集合关联的信道。第四信道为第一AP集合或目标AP集合发送至终端设备的用于携带第一随机接入配置信息的信道,其中,第一随机接入配置信息为终端设备接入所述第一AP集合的随机接入过程的配置信息。第五信道用于调度第四资源。第六信道用于指示第五资源。
可理解的,对于一个资源,可包括该资源在时域上的位置即时域资源以及该资源在频域上的位置即频域资源。
对于第二资源中一资源,第二指示信息可指示该资源在时域和/或频域上的位置,即指示该资源所包括的时域资源和/或频域资源。
需说明的是,第二信道包括的多个信道可在不冲突的情况下进行组合。
在一示例中,第二信道包括第三信道和第四信道,此时,第二指示信息指示第三资源的时域位置和频域位置,以及第四资源的时域位置和频域位置。
在一示例中,第二信道包括第三信道和第五信道,此时,第二指示信息指示第三资源的时域位置和频域位置,以及第五资源的时域位置和频域位置,且第五信道调度第四资源的时域位置和频域位置。
在一示例中,第二信道包括第六信道,此时,第二指示信息指示第六资源的时域位置和频域位置,此时,终端设备基于第六信道确定第五资源的时域位置和频域位置,第五资源上传输的第五信道调度第四资源的时域位置和频域位。
在一示例中,第二信道包括第三信道、第四信道、第五信道和第六信道,此时,第二指示信息指示:第三资源的时域位置和频域位置、第四资源的时域位置、第五资源的频域位置、第六资源的时域位置和频域位置,其中,终端设备基于第六资源接收第六信道,第六信道指示第五资源的频域位置,终端设备基于第五资源接收第五信道,第五信道调度第四资源的频域位置。
需说明的是,在未说明一第二资源的时域资源或频域资源的情况下,该第二资源包括时域资源和频域资源。
第一信息用于确定第一TA,第一TA可理解为开环TA,开环TA可用于NTN场景下终端设备进行上行时域同步,从而调整NTN场景下上行传输的发送时间。
第一信息可包括以下至少之一:卫星星历信息和公共TA信息。
本申请实施例中,若本申请实施例提供的无线通信方法应用于NTN,则第一信道携带第一信息,否则,第一信道可不携带第一信息。
在一些实施例中,若确定所述第一AP集合为所述目标AP集合,基于图7所示的方法,还包括:
所述终端设备向所述第一AP集合发送第三信道,所述第三信道用于所述终端设备与所述第一AP集合建立关联关系。
在一些实施例中,若确定所述第一AP集合为所述目标AP集合,基于图8所示的方法,还包括:
所述第一AP接收所述终端设备发送的第三信道,所述第三信道用于所述终端设备与所述第一AP集合建立关联关系。
终端设备基于第一AP集合发送的第一信道确定第一AP集合为目标AP的情况下,向第一AP集合发送第三信道。在一些实施例中,第三信道可为物理随机接入信道(Physical Random Access Channel,PRACH)。
终端设备与第一AP集合建立关联关系,使得第一AP集合成为目标AP集合。
本申请实施例中,终端设备与第一AP集合建立关联关系,则第一AP集合中的各AP与终端设备建立关联关系,使得第一AP集合中的各AP能够向终端设备提供服务。
若第一信道的发送方式为发送方式一,则终端设备向第一AP集合的主AP或者第一AP集合中的各AP发送一个第三信道,此时,第一AP集合的主AP或各AP接收到一第三信道,第一AP集合基于接收到第三信道与终端设备建立关联关系。
若第一信道的发送方式为发送方式二,则终端设备向第一AP集合的一个AP发送一个第三信道,此时,第一AP集合的各AP分别接收到一第三信道,第一AP集合的各AP基于接收到第三信道与终端设备建立关联关系,实现第一AP集合与终端设备建立关联关系。
本申请实施例中,第一AP集合可通过随机接入过程与终端设备建立关联关系。
在一些实施例中,所述第三信道承载有上行同步信号,所述上行同步信号用于所述终端设备与所述目标AP集合进行上行同步。
第三信道可使用第二伪随机序列进行传输。终端设备使用第二伪随机序列发送第三信道。第一AP集合发送第一信道后,可使用第二伪随机序列进行相关检测,若通过第二伪随机序列检测到第三信道存在后,可完成对发送第三信道的终端的上行时间同步。
在一些实施例中,所述第三信道传输占用的第三资源基于以下至少之一确定:
因素3A、第一资源和第一偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第一偏移量为所述第三资源相对于所述第一资源在时域和/或频域上的偏移量;
因素3B、第三指示信息,所述第三指示信息用于指示所述第三资源在频域和/或时域上的位置和/或大小。
对于因素3A、若第一偏移量为第三资源相对于第一资源在时域上的偏移量,则第一偏移量为第一时域偏移量;若第一偏移量为所述第三资源相对于第一资源在频域上的偏移量,则第一偏移量为第一频域偏移量;若第一偏移量为第三资源相对于第一资源在时域上和频域上的偏移量,则第一偏移量包括第一时域偏移量和第一频域偏移量。相对第一时域位置偏移第一时域偏移量得到第三时域位置,相对第一频域位置偏移第一频域偏移量得到第三频域位置。其中,第三时域位置为第三资源在时域上的位置,第三频域位置为第三资源在频域上的位置。
需要说明的是,本申请实施例中,时域上的偏移量的单位为时域单元,频域上的偏移量的单位为频域单元。
第三资源的确定包括确定以下四项内容:
第三时域位置,第三时域位置为第三资源在时域上的位置;
第三频域位置,第三频域位置为第三资源在频域上的位置;
第三时域大小,第三时域大小为第三资源在时域上的大小;
第三频域大小,第三频域大小为第三资源在频域上的大小。
第三资源上述四项内容可在因素3A、因素3B不冲突的情况下,基于因素3A、因素3B中的一个因素或多个因素确定。
对于第三时域资源和第三频域资源,第一偏移量和第一资源的结合和/或第三指示信息用于确定第三时域位置和第三频域位置。
在一示例中,第一偏移量和第一资源用于确定第三时域位置和第三频域位置。
在一示例中,第三指示信息用于确定第三时域位置和第三频域位置。
在一示例中,第一偏移量和第一资源用于确定第三时域位置,第三指示信息用于确定第三频域位置。
在一示例中,第一偏移量和第一资源用于确定第三频域位置,第三指示信息用于确定第三时域位置。
假设第一偏移量和第一资源用于确定第三时域位置和第三频域位置,第一偏移量包括第一时域偏移量和第一频域偏移量,终端设备基于第一偏移量和第一资源确定第三资源的位置,其中,终端设备基于第一时域偏移量和第一资源在时域上的位置即第一时域位置确定第三时域位置,终端设备基于第一频域偏移量和第一资源在频域上的位置即第一频域位置确定第三频域位置。
假设第三指示信息用于确定第三时域位置和第三频域位置,终端设备基于第三指示信息确定第三资源的位置。
假设第一偏移量和第一资源用于确定第三时域位置,第三指示信息用于确定第三频域位置,终端设备基于第一时域偏移量和第一时域位置确定第三时域位置,且基于第三指示信息确定第三频域位置。
假设第一偏移量和第一资源用于确定第三频域位置,第三指示信息用于确定第三时域位置,终端设备基于第一频域偏移量和第一频域位置确定第三频域位置,且基于第三指示信息确定第三时域位置。
第三时域大小可为设定的第一大小或由第三指示信息指示。
第三频域大小可为设定的第二大小或由第三指示信息指示。
本申请实施例中,第三资源的第三时域位置和第三频域位置的不同确定方式与第三资源在时域和频域的大小的不同确定方式在不冲突的情况下可相互结合。
在一示例中,第三时域位置基于第一时域位置和第一时域偏移量确定,第三频域位置基于第三指示信息确定,第三资源在时域上的大小为设定的第一大小,第三资源在频域上的大小由第三指示信息指示。
在一示例中,第三时域资源、第三频域资源、第三资源在时域和频域上的大小由第三指示信息指示。
在一示例中,第三时域位置基于第一时域位置和第一时域偏移量确定、第三频域位置基于第一频域位置和第一频域偏移量确定,第三资源在时域上的大小为第一大小,第三资源在频域上的大小为第二大小。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第一偏移量;
所述第三指示信息。
在一些实施例中,基于图7所示的无线通信方法,所述方法还包括:
所述终端设备接收所述第一AP集合发送的第四信道,所述第四信道用于携带所述第一AP集合对应的第一随机接入配置信息,所述第一随机接入配置信息用于所述终端设备通过随机接入过程接入所述第一AP集合。
在一些实施例中,基于图7所示的无线通信方法,所述方法还包括:
所述第一AP向终端设备发送第四信道,所述第四信道用于携带所述第一AP集合对应的第一随机接入配置信息,所述第一随机接入配置信息用于所述终端设备接入所述第一AP集合的随机接入过程。
第四信道的发送方式可参考第一信道的发送方式,这里不再赘述。
第四信道可为物理下行共享信道(Physical Downlink Shared Channel,PDSCH)。
终端设备接收到第一AP集合发送的第四信道后,基于第四信道携带的第一随机接入配置信息执行接入第一AP集合的随机接入过程,从而与第一AP集合关联。
本申请实施例中,第一随机接入过程配置消息为小区级的系统消息,并不是针对当前终端设备的。
在一些实施例中,所述第一随机接入配置信息包括以下至少之一:
第一频率范围,所述第一频率范围为随机接入过程中的下行信道传输所在的频率范围;
第二频率范围,所述第二频率范围为随机接入过程中的上行信道传输所在的频率范围。
对于终端设备,终端设备基于第一频率范围向第一AP集合发送随机接入过程中的上行信道传输;并基于第一频率范围接收第一AP集合发送的下行信道传输。
对于第一AP集合,第一AP集合接收处于第二频率范围内的随机接入过程的上行信道传输,并基于第一频率范围向终端设备发送随机接入过程中的下行信道传输。
对于不同的第一AP集合,其通过第四信道向终端设备发送的第一随机接入过程配置信息不同。
在一些实施例中,所述第四信道还用于携带以下至少之一:
第四指示信息,所述第四指示信息用于指示第四资源的时域位置,所述第四资源为所述第四信道的传输占用的资源,所述第四资源的时域位置用于时域定位;
第一信息,所述第一信息用于所述终端设备确定第一TA;
随机接入响应(Random Access Response,RAR)消息。
本申请实施例,对于指示同一功能或目的的信息可仅配置一个即可,不需要进行重复配置。比如:第一信道和第四信息中一个携带第一信息即可。又比如:第一信道和第四信道中的一个携带用于时域定位的信息即可。为了简便起见,后续不再进行详细示例说明。
RAR消息可携带以下信息至少之一:第二TA、上行授权调度信息和随机接入过程使用的临时标识。第二TA为针对所述终端设备的TA,可理解为闭环TA。
本申请实施例中,若终端设备应用于非NTN网络,则终端设备基于第二TA进行定时提前,若终端设备应用于NTN网络,则终端设备基于第一TA和第二TA联合进行定时提前,以调整上行传输的发送时间。
在一些实施例中,所述第一TA用于调整第一上行传输的发送时间,所述第一上行传输为收到所述第一信息后的上行传输。
若第一信息携带在第一信道中,则第一TA作用的信道包括第四信道和随机接入过程中的上行传输。
若第一信息携带在第四信道中,则第一TA作用的信息包括随机接入过程中的上行传输。
在一些实施例中,所述第四信道的接收先于第三信道的发送,所述第三信道为确定所述第一AP集合为所述目标AP集合的情况下所述终端设备发送至所述第一AP集合的信道,所述第三信道用于所述终端设备与所述目标AP集合建立关联关系;或,
所述第三信道的发送先于所述第四信道的接收。
若第四信道的接收先于第三信道的发送,则第一AP集合在发送第一信道后,向终端设备发送第四信道,且多个第一AP集合中各第一AP集合均发送携带相应的第一随机接入过程配置信息的第第四信道。此时,终端设备尝试接收第一AP集合发送的第四信道。对于第一AP集合来说,第一AP集合并不确定自身是否为目标AP集合,尝试着向终端设备发送第一随机接入过程配置信息。
此时,多个第一AP集合包括AP集合1、AP集合2,AP集合1和AP集合2向终端设备发送第一信道后,如图9所述,AP集合1和AP集合2分别向终端设备发送第四信道,终端设备在确定AP集合1为目标AP集合的情况下,向AP集合1发送第三信道,以实现终端设备与AP集合1的上行同步。
若第四信道的接收后于第三信道的发送,则第一AP集合在发送第一信道后,终端设备基于接收的第一信道确定作为目标AP集合的第一AP集合,并向该确定为目标AP集合的第一AP集合发送第三信道,确定为目标AP集合的第一AP集合向终端设备发送第四信道。此时,确定自身为目标A集合的AP集合向终端设备发送第四信道以提供自身的第一随机接入过程配置信息,终端设备仅接收到确定为目标AP集合的第一AP集合发送的第四信道。从而避免不必要的信道传输。
基于图10所示的AP集合,AP集合1和AP集合2向终端设备发送第一信道后,终端设备在确定AP集合1为目标AP集合的情况下,如图9所述,向AP集合1发送第三信道,AP集合1基于接收到的第三信道向终端设备发送第四信道,以实现终端设备与AP集合1的上行同步。
在一些实施例中,所述第四信道的传输占用的第四资源基于以下至少之一确定:
因素4A、第一资源和第二偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第二偏移量为所述第四资源相对于所述第一资源在时域和/或频域上的偏移量;
因素4B、第三资源和第三偏移量,所述第三资源为所述第四信道之前的第三信道的传输占用的资源,所述第三偏移量为所述第四资源相对所述第三资源在时域和/或频域上的偏移量;
因素4C、第五指示信息,所述第五指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;
因素4D、第五信道,所述第五信道用于调度所述第四信道。
对于因素4A,若第二偏移量为所述第四资源相对于所述第一资源在时域上的偏移量,则第二偏移量为第二时域偏移量;若第二偏移量为所述第四资源相对于所述第一资源在频域上的偏移量,则第二偏移量为第二频域偏移量;若第二偏移量为所述第四资源相对于所述第一资源在时域上和频域上的偏移量,则第二偏移量包括第二时域偏移量和第二频域偏移量。相对第一时域位置偏移第二时域偏移量得到第四时域位置,相对第一频域位置偏移第二频域偏移量得到第四频域位置。其中,第四时域位置为第四资源在时域上的位置,第四频域位置为第四资源在频域上的位置。
对于因素4B,若第三偏移量为所述第四资源相对于所述第三资源在时域上的偏移量,则第三偏移量为第三时域偏移量;若第三偏移量为所述第四资源相对于所述第三资源在频域上的偏移量,则第三偏移量为第三频域偏移量;若第三偏移量为所述第四资源相对于所述第三资源在时域上和频域上的偏移量,则第三偏移量包括第三时域偏移量和第三频域偏移量。相对第三时域位置偏移第三时域偏移量得到第四时域位置,相对第三频域位置偏移第三频域偏移量得到第四频域位置。其中,第三时域位置为第三资源在时域上的位置,第三频域位置为第三资源在频域上的位置。
对于因素4D,第五信道为先于第四信道的下行传输信道。比如:PDCCH。
本申请实施例中,第四资源的确定包括确定以下四项内容:
第四时域位置,第四时域位置为第四资源在时域上的位置;
第四频域位置,第四频域位置为第四资源在频域上的位置;
第四时域大小,第四时域大小为第四资源在时域上的大小;
第四频域大小,第四频域大小为第四资源在频域上的大小。
第四资源上述四项内容可在因素4A、因素4B、因素4C、因素4D不冲突的情况下,基于因素4A、因素4B、因素4C、因素4D中的一个因素或多个因素确定。
在一示例中,第四时域位置、第四频域位置、第四时域大小、第四频域大小由第五指示信息指示。
在一示例中,第四时域位置、第四频域位置、第四时域大小、第四频域大小由第五信道调度。
在一示例中,第四时域位置基于第一时域位置和第二时域偏移量确定,第四频域位置基于第三时域位置和第三频域位置确定,第四时域大小由第五指示信息指示,第四频域大小由第五信道调度。
在一示例中,第四时域位置基于第一时域位置和第二时域偏移量确定,第四频域位置基于第一时域位置和第二频域位置确定,第四时域大小和第四频域大小由第五指示信息。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第二偏移量;
所述第三偏移量;
所述第五指示信息。
在一些实施例中,所述第五信道包括以下至少之一:
第六指示信息,所述第六指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;
第四偏移量,所述第四偏移量为所述第四资源相对于所述第五信道的传输占用的第五资源在时域和/或频域上的偏移量。
第五信道在调度第四资源时,可调度第四资源的四项内容中的至少之一,且第五信道可直接基于第六指示信息指示所要调度的内容,也可通过第四偏移量的方式指示所要调度的内容。
第四偏移量包括第四时域偏移量和/或第四频域偏移量,第四时域偏移量为第四时域位置相对于第五时域位置的偏移量即第四资源相对于第五资源在时域上的偏移量;第四频域偏移量为第四频域位置相对于第五频域位置的偏移量即第四资源相对于第五资源在频域上的偏移量。第五时域位置为第五资源在时域上的位置,第五频域位置为第五资源在频域上的位置。
在一些实施例中,所述第五信道的传输占用的第五资源基于以下至少之一确定:
因素5A、所述第一资源和第五偏移量,所述第五偏移量为所述第五资源相对于所述第一资源在时域和/或频域上的偏移量;
因素5B、所述第三资源和第六偏移量,所述第六偏移量为所述第五资源相对所述第三资源在时域和/或频域上的偏移量;
因素5C、第七指示信息,所述第七指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;
因素5D、第六信道,所述第六信道用于指示所述第五资源在时域和/或频域上的位置和/或大小。
对于因素5A,若第五偏移量为第五资源相对于第一资源在时域上的偏移量,则第五偏移量为第五时域偏移量;若第五偏移量为第五资源相对于第一资源在频域上的偏移量,则第五偏移量为第五频域偏移量;若第五偏移量为所述第五资源相对于第一资源在时域上和频域上的偏移量,则第五偏移量包括第五时域偏移量和第五频域偏移量。相对第一时域位置偏移第五时域偏移量得到第五时域位置,相对第一频域位置偏移第五频域偏移量得到第五频域位置。其中,第五时域位置为第五资源在时域上的位置,第五频域位置为第五资源在频域上的位置。
对于因素5B,若第六偏移量为第五资源相对于第三资源在时域上的偏移量,则第六偏移量为第六时域偏移量;若第六偏移量为第五资源相对于第三资源在频域上的偏移量,则第六偏移量为第六频域偏移量;若第六偏移量为第五资源相对于第三资源在时域上和频域上的偏移量,则第六偏移量包括第六时域偏移量和第六频域偏移量。相对第三时域位置偏移第六时域偏移量得到第五时域位置,相对第三频域位置偏移第六频域偏移量得到第五频域位置。
对于因素5D,第六信道为先于第五信道的下行传输信道。比如:PBCH。
本申请实施例中,第五资源的确定包括确定以下四项内容:
第五时域位置,第五时域位置为第五资源在时域上的位置;
第五频域位置,第五频域位置为第五资源在频域上的位置;
第五时域大小,第五时域大小为第五资源在时域上的大小;
第五频域大小,第五频域大小为第五资源在频域上的大小。
第五资源上述四项内容可在因素5A、因素5B、因素5C、因素5D不冲突的情况下,基于因素5A、因素5B、因素5C、因素5D中的一个因素或多个因素确定。
在一示例中,第五时域位置、第五频域位置、第五时域大小、第五频域大小由第七指示信息指示。
在一示例中,第五时域位置、第五频域位置、第五时域大小、第五频域大小由第六信道指示。
在一示例中,第五时域位置基于第一时域位置和第五时域偏移量确定,第五频域位置基于第三时域位置和第六频域位置确定,第五时域大小由第七指示信息指示,第五频域大小由第六信道指示。
在一示例中,第五时域位置基于第一时域位置和第五时域偏移量确定,第五频域位置基于第一时域位置和第五频域位置确定,第五时域大小和第五频域大小由第七指示信息。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第五偏移量;
所述第六偏移量;
第七指示信息。
在一些实施例中,所述第六信道包括以下至少之一:
第八指示信息,所述第八指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;
第七偏移量,所述第七偏移量为所述第五资源相对于所述第六信道的传输占用的第六资源在时域和/或频域上的偏移量;
第九指示信息,所述第九指示信息用于指示所述第六资源的位置,所述第六资源的位置用于时域定位和/或频域定位。
第六信道在指示第五资源时,可指示第五资源的四项内容中的至少之一,且第六信道可直接基于第八指示信息指示所要调度的内容,也可通过第七偏移量的方式指示所要调度的内容。
第七偏移量包括第七时域偏移量和/或第七频域偏移量,第七时域偏移量为第五时域位置相对于第六时域位置的偏移量即第五资源相对于第六资源在时域上的偏移量;第七频域偏移量为第五频域位置相对于第六频域位置的偏移量即第五资源相对于第六资源在频域上的偏移量。第六时域位置为第六资源在时域上的位置,第六频域位置为第六资源在频域上的位置。
本申请实施例中,若终端设备接收第六信道的情况下,终端设备可基于第一信道和第六信道中任一信道进行频域定位和/或时域定位。本申请实施例中,若终端设备未接收第六信道的情况下,终端设备可基于第一信道和第四信道中任一信道进行时域定位,并基于第一信道进行频域定位。
在一些实施例中,所述第六信道的传输占用的第六资源基于以下至少之一确定:
因素6A、所述第一资源和第八偏移量,所述第八偏移量为所述第六资源相对于所述第一资源在时域和/或频域上的偏移量;
因素6B、所述第三资源和第九偏移量,所述第九偏移量为所述第六资源相对于所述第三资源在时域和/或频域上的偏移量;
因素6C、第十指示信息,所述第十指示信息用于指示所述第六资源在时域和/或频域上的位置和/或大小。
对于因素6A,若第八偏移量为第六资源相对于第一资源在时域上的偏移量,则第八偏移量为第八时域偏移量;若第八偏移量为第六资源相对于第一资源在频域上的偏移量,则第八偏移量为第八频域偏移量;若第八偏移量为所述第六资源相对于第一资源在时域上和频域上的偏移量,则第八偏移量包括第八时域偏移量和第八频域偏移量。相对第一时域位置偏移第八时域偏移量得到第六时域位置,相对第一频域位置偏移第八频域偏移量得到第六频域位置。其中,第六时域位置为第六资源在时域上的位置,第六频域位置为第六资源在频域上的位置。
对于因素6B,若第九偏移量为第六资源相对于第三资源在时域上的偏移量,则第九偏移量为第九时域偏移量;若第九偏移量为第六资源相对于第三资源在频域上的偏移量,则第九偏移量为第九频域偏移量;若第九偏移量为所述第六资源相对于第三资源在时域上和频域上的偏移量,则第九偏移量包括第九时域偏移量和第九频域偏移量。相对第三时域位置偏移第九时域偏移量得到第六时域位置,相对第三频域位置偏移第九频域偏移量得到第六频域位置。
本申请实施例中,第六资源的确定包括确定以下四项内容:
第六时域位置,第六时域位置为第六资源在时域上的位置;
第六频域位置,第六频域位置为第六资源在频域上的位置;
第六时域大小,第六时域大小为第六资源在时域上的大小;
第六频域大小,第六频域大小为第六资源在频域上的大小。
第六资源上述四项内容可在因素6A、因素6B、因素6C不冲突的情况下,基于因素6A、因素6B、因素6C中的一个因素或多个因素确定。
在一示例中,第六时域位置、第六频域位置、第六时域大小、第六频域大小由第十指示信息指示。
在一示例中,第六时域位置基于第一时域位置和第八时域偏移量确定,第六频域位置基于第三频域位置和第九频域偏移量确定,第六时域大小和第六频域大小由第七指示信息指示。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第八偏移量;
所述第九偏移量;
所述第十指示信息。
本申请实施例中,通过终端设备与第一AP集合之间的第一信道、第三信道和第四信道的交互建立目标AP集合。
本申请实施例中可实施为以下至少之一:
终端设备接收第一AP集合发送的第一信道,基于第一AP集合发送的第一信道确定该第一AP集合为目标AP集合,则向该第一AP集合发送第三信道。终端设备确定第四资源,从而在第四资源上接收该第一AP集合发送的第四信道。终端设备接收第四信道后,基于第四信道携带的该第一AP集合对应的第一随机接入过程配置信息执行随机接入过程以接入第一AP集合,实现与作为目标AP集合的该第一AP集合的关联,由该第一AP集合中的AP联合为终端设备提供服务。
终端设备确定第四资源的方式包括但不限于以下方式:
方式1、基于第一信道携带的第二偏移量或第三偏移量确定第四资源;
方式2、基于第一信道携带的第五偏移量或第六偏移量确定第五资源,终端设备在第五资源上接收的第五信道调度第四资源;
方式3、基于第一信道携带的第八偏移量或第九偏移量确定第六资源,终端设备在第六资源上接收的第六信道指示第五资源,终端设备在第五资源上接收的第五信道调度第四资源。
本申请实施例,若终端设备确定所述第一AP集合为所述目标AP集合,终端设备执行以下处理:
在一些实施例中,所述终端设备发送或接收第七信道,所述第七信道用于对所述目标AP集合所包括的AP进行更新。
此时,所述第一AP接收或发送第七信道,所述第七信道用于对所述目标AP集合所包括的AP进行更新。
第七信道可理解为终端设备对第一AP或第一AP对终端设备进行信道测量的信道。
这里,对终端设备当前关联的目标AP集合中的AP进行更新,使得目标AP集合所包括的AP
发生变化。这里,进行目标AP集合更新时,进行AP级别的更新。在一示例中,目标AP集合包括:AP1、AP2、AP3和AP4,更新后的目标AP集合可包括以下几种情况:
情况1、AP1、AP2、AP3、AP4、AP5;
情况2、AP1、AP2、AP3;
情况3、AP1、AP3、AP6;
情况4、AP5、AP6、AP7。
需要说明的是,当一AP集合为一终端设备关联的目标AP集合,对于终端设备来说,目标AP集合包括的AP可以发生变化,但对于AP集合的配置来说,第一AP集合包括的AP仍保持不变。
在一些实施例中,对所述目标AP集合所包括的AP进行更新,包括:
所述终端设备对候选AP集合中的AP进行测量或者候选AP集合中的AP对所述终端设备进行测量,基于测量结果对所述目标AP集合进行更新,所述候选AP集合包括所述第一AP集合中的AP。
可理解的,候选AP集合中候选AP对应的测量结果,用于对所述目标AP集合进行更新,所述候选AP集合包括所述第一AP集合中的AP。
其中,候选AP集合中的候选AP都需要接收或发送第七信道。
候选AP集合中候选AP对应的测量结果为终端设备对候选AP集合中的候选AP进行测量的测量结果或候选AP对终端设备进行测量的测量结果。
这里,CPU可基于第一AP集合确定候选AP集合,候选AP集合包括第一AP集合的AP,终端设备对候选AP集合中的候选AP进行测量,或候选AP对终端设备进行测量,得到该候选AP对应的测量结果。对于一候选AP,基于该候选AP对应的测量结果来确定该候选AP是否为目标AP集合中的AP。
在一示例中,第一AP集合包括:AP1、AP2、AP3和AP4,候选AP集合可包括:AP1、AP2、AP3、AP4、AP5、AP6、AP7和AP8。
在一些实施例,所述测量结果包括以下至少之一:
参考信号接收功率RSRP;
信号与干扰加噪声比SINR。
在一些实施例,对于所述候选AP集合中的候选AP,所述第七信道包括以下至少之一:
上行测量信道;
下行测量信道。
对于上行测量信道,终端设备发送上行测量信道至候选AP集合中的候选AP,CPU基于候选AP集合中各候选AP的测量结果确定关联的作为目标AP集合中的AP。
对于下行测量信道,CPU确定候选AP集合中各候选AP,候选AP集合中各候选AP向终端设备发送下行测量信道,终端设备对接收的下行测量信道进行测量得到测量结果,基于候选AP集合中各候选AP的测量结果确定关联的作为目标AP集合中的AP。
在一些实施例,所述下行测量信道包括以下之一:
所述第一信道;
信道状态信息参考信号CSI-RS。
本申请实施例中,若一个候选AP为一个AP集合或AP集合中各AP均发送第一信道的情况下,下行测量信道包括第一信道。
可理解的,第一信道是针对AP集合的,CSI-RS是针对AP的。
在一些实施例,所述上行测量信道包括以下之一:
第三信道,所述第三信道用于所述终端设备与所述目标AP集合建立关联关系;
探测参考信号SRS。
本申请实施例中,若一个候选AP为一个AP集合或向AP集合中各AP均发送第三信道的情况下,上行测量信道包括第三信道。
可理解的,第三信道是针对AP集合的,SRS是针对AP的。
本申请实施例中,终端设备通过对第一信道和/或CSI-RS的测量、或候选AP集合中的候选AP对第三信道和/或SRS的测量,实现AP集合的管理,从而对终端关联的AP集合不断更新,确保终端设备始终被信道条件较好的一个或多个AP服务,保证通信系统的服务质量。
下面,对本申请实施例提供的无线通信方法进行进一步描述。
本申请实施例提供的无线通信方法包括但不限于以下实施例1和实施例2。
实施例1、建立终端关联的AP集合
终端在RRC连接建立之前,可以通过随机接入过程与网络中的一个或多个AP组成的AP集合建立关联关系。具体流程如下:
1)、终端测量AP集合周期性发送的第一信道,确定目标AP集合。
对于AP集合发送的第一信道,应至少承载下行时间同步、频率同步和AP信号强度测量的功能,因此所述第一信道至少需要包含同步信号以完成所述功能。其中,所述同步信号可以使用伪随机序列进行发送,例如具有较好自相关和互相关特性的m序列、Gold序列。基于此,终端在检测同步信号时,可以对同步信号可能使用的序列进行相关检测,当检测到同步信号存在后,即可完成对目标AP集合的下行时频同步。
可选地,不同AP集合的同步信号使用不同的序列,使得终端可以根据同步信号区分网络中的不同AP集合。
在一示例中,如图11所示,AP集合1和AP集合2连接到CPU,AP集合1的同步信号1和AP集合2的同步信号2分别使用序列1和序列2,终端设备在检测同步信号时,分别使用序列1和序列2对应的伪随机序列进行相关检测,从而区分出AP集合1和AP集合2的同步信号。由于终端设备与AP集合1距离较近,导致同步信号1的接收功率较大,终端设备将AP集合1作为目标AP集合进行下行时频同步。
在一些实施例中,所述第一信道指示第一信道信息,所述第一信道信息包括以下至少之一:
第一信道对应的时域资源的位置,例如第一信道传输对应的无线帧索引、时隙索引和符号索引,从而终端接收第一信道后完成无线帧定时、时隙定时和符号定时;
第一信道对应的频域资源的位置,例如第一信道传输在初始下行BWP中对应的RB索引和子载波索引,从而终端接收第一信道后确定第一信道和初始下行BWP频域位置关系;
第一信道后的无线信道传输对应的时域资源的位置、频域资源的位置、时域资源的大小、和频域资源的大小。
2)、终端设备向目标AP集合发送第三信道,请求与目标AP集合建立关联关系。
对于终端设备发送的第三信道,应至少承载上行时间同步、和请求与目标AP集合建立关联关系的功能,因此,所述第三信道可以使用伪随机序列(第二伪随机序列)进行发送,例如具有低峰均比特性的ZC序列。AP集合发送第一信道后,在第三时域位置和第三频域位置上检测第三信道,例如对第三信道可能使用的序列进行相关检测,当检测到第三信道存在后,即可完成对发送第三信道的终端的上行时间同步。随后所述终端与目标AP集合通过随机接入过程建立关联关系。
第三时域位置可以第一时域偏移量确定,第一时域偏移量为第三信道相对于第一信道偏移的时域单元个数,如偏移的时隙和符号个数。例如,第三时域位置为第一信道后1个时隙和2个符号对应的时域位置,如图12中时隙#1传输的第三信道。第三时域位置也可以是指定的时域单元索引,如指定的时隙和符号索引,例如,第三时域位置为时隙#2的符号#8对应的时域位置,如图12中时隙#2传输的第三信道。所述第一时域偏移量所包括的偏移的时域单元个数、和/或指定的时域单元索引可以是协议提供的缺省值,也可以通过所述第一信道提供。
第三频域位置可以基于第一频域偏移量,第一频域偏移量是第三信道相对于第一信道偏移的频域单元个数,如偏移的RB和子载波个数,例如,第一信道偏移1个RB和2个子载波对应的频域位置,如图12中时隙#1传输的第三信道;第一频域位置也可以是初始上行BWP中指定的频域单元索引,如指定的RB和子载波索引,例如,RB#2的子载波#8对应的频域位置,如图12中时隙#2传输的第三信道。所述第一频域偏移量指示的偏移的RB和子载波个数、和/或指定的RB和子载波索引可以是协议提供的缺省值,也可以通过第一信道提供。
在一些实施例中,所述第三信道传输占用的时域资源的大小、频域资源的大小通过第一信道提供。例如,第三信道传输占用的符号数、RB数是不固定的,则可以通过第一信道指示第三信道传输具体占用的符号数、RB数,确保终端设备与目标AP集合对于第三信道传输占用的时频域资源有着相同的理解。
3)、目标AP集合向终端发送第四信道,提供随机接入过程需要的配置信息即第一随机接入资源配置信息
为响应第三信道传输,终端设备在第四时域位置和第四频域位置上接收目标AP集合发送的第四信道,如PDSCH,所述第四信道携带第二信息,所述第二信息包括以下至少之一:
初始下行BWP的频域位置和带宽信息,所述初始下行BWP为随机接入过程中下行信道传输所在的频率范围;
初始上行BWP的频域位置和带宽信息,所述初始上行BWP为随机接入过程中上行信道传输所在的频率范围;
第四信道对应的时域位置信息,例如,第四信道传输对应的无线帧索引、时隙索引和符号索引,从而终端设备接收第四信道后完成无线帧定时、时隙定时和符号定时;
终端的RAR消息,例如针对发送第三信道的终端的RAR消息。
在一些实施例中,所述RAR消息包含针对所述终端的时间提前量(TA)即第二TA、上行授权调度信息、和随机接入过程使用的临时标识。
终端设备接收目标AP集合发送的第四信道后,即可获取随机接入过程需要的配置信息,从而完成与目标AP集合的随机接入过程,并与目标AP集合建立关联关系,如图13所示,包括:
S1301、AP集合发送第一信道,用于下行时频同步和信号强度测量。
S1302、终端设备发送第三信道,用于上行时间同步和请求与目标AP集合建立关联关系。
S1303、AP集合发送第四信道,提供随机接入过程需要的配置信息。
随机接入过程需要的配置信息即为第一随机接入过程配置信息,通过第一随机接入过程配置信息完成随机接入过程,从而在该AP集合与终端设备之间建立关联关系。
为了确定第四时域位置和第四频域位置,终端设备在接收第四信道之前需要在第五时域位置和第五频域位置监听第五信道,如PDCCH,所述第五信道用于调度第四信道,因此所述第五信道携带以下信息的至少之一:第四时域位置、第四频域位置、第四信道传输占用的时域资源的大小、第四信道传输占用的频域资源的大小。
基于此,第四时域位置可以基于第五时域偏移量确定,第五时域偏移量可以是第四信道相对于第五信道偏移的时域单元个数,如偏移的时隙和符号个数;第四时域位置也可以是指定的时域单元索引,如指定的时隙和符号索引。类似的,第四频域位置可以基于第五频域偏移量确定,第五频域偏移量可以是第四信道相对于第五信道偏移的频域单元个数,如偏移的RB和子载波个数;第四频域位置也可以是初始下行BWP中指定的频域单元索引,如指定的RB和子载波索引。
为了确定第五时域位置和第五频域位置,终端在发送第三信道之后和监听第五信道之前在第六时域位置和第六频域位置接收第六信道,如PBCH,所述第六信道用于确定第五信道的时频域资源和位置信息,因此所述第六信道携带信息的至少之一:第五时域位置、第五频域位置、第五信道传输占用的时域资源的大小、第五信道传输占用的频域资源的大小、第六信道对应的时域资源的位置。需要说明的是,若第六信道携带其对应的时域资源的位置信息,例如第六信道传输对应的无线帧索引、时隙索引和符号索引,则终端设备接收第六信道后即可完成无线帧定时、时隙定时和符号定时。
基于此,第五时域位置可以基于第七时域偏移量确定,第七时域偏移量可以是第五信道相对于第六信道偏移的时域单元个数,如偏移的时隙和符号个数;第五时域位置也可以是指定的时域单元索引,如指定的时隙和符号索引。类似的,第五频域位置可以基于第七频域偏移量确定,第七频域偏移量是第五信道相对于第六信道偏移的频域单元个数,如偏移的RB和子载波个数;第五频域位置也可以是初始下行BWP中指定的频域单元索引,如指定的RB和子载波索引。
类似的,第六时域位置可以基于第八时域偏移量或第九时域偏移量确定,第八时域偏移量或第九时域偏移量是第六信道相对于第一信道或第三信道偏移的时域单元个数,如偏移的时隙和符号个数;第六时域位置也可以是指定的时域单元索引,如指定的时隙和符号索引。类似的,第六频域位置可以基于第八频域偏移量或第九频域偏移量确定,第八频域偏移量或第九频域偏移量是第六信道相对于第一信道或第三信道偏移的频域单元个数,如偏移的RB和子载波个数;第六频域位置也可以是初始下行BWP中指定的频域单元索引,如指定的RB和子载波索引。所述第六时域位置、第六频域位置、以及第六信道传输对应的时域资源的大小和频域资源的大小通过所述第一信信道提供,如图14所示。
此外,NTN系统传输时延通常为几毫秒到几百毫秒,为了补偿传输时延对时序关系的影响,终端需要在上行信道发送之前进行TA调整,且NTN系统中TA即第一TA的获取需要基于以下信息中的至少之一:卫星星历信息和公共TA信息。
所述NTN系统中TA的获取需要的信息可以通过第一信道提供,使得终端在接收第一信道之后即可获取TA,并在TA调整后向目标AP集合发送第三信道,完成后续随机接入过程。
所述NTN系统中TA的获取需要的信息也可以通过第四信道提供,在一些实施例中,终端在发送第三信道前,首先在第二时域位置接收第四信道,若接收到AP集合发送的第四信道,且获取第四信道提供的TA信息,则可以在TA调整后向目标AP集合发送第三信道,完成后续随机接入过程。在另一些实施例中,终端不调整TA向目标AP集合发送第三信道,此时需要AP集合在考虑传输时
延影响后的第一时域位置检测第三信道,并在第四信道中提供TA信息,则终端可以对第四信道后的上行传输进行TA调整,完成后续随机接入过程。
实施例2:更新终端设备关联的AP集合即目标AP集合
终端设备通过随机接入过程与一个或多个AP组成的AP集合建立关联关系后,考虑到AP和终端设备的移动性,需要对终端设备关联的AP集合进行管理,例如对终端关联的AP集合不断进行更新,确保终端设备始终被信道条件较好的一个或多个AP服务。
对于AP集合的管理,可以通过第一信道和/或CSI-RS的测量进行,并将RSRP和/或SINR测量结果作为度量标准。例如CPU将网络中的M个AP作为终端的候选服务AP集合,并为集合中的AP分配独立的第一信道资源和/或CSI-RS资源进行关联。终端根据第一信道和/或CSI-RS的测量结果,向网络上报第三信息,所述第三信息包括K≥1个第一信道资源指示信息和/或CSI-RS资源指示信息,以及对应的RSRP和/或SINR测量结果。
此时CPU根据终端上报的第三信息,以及AP与第一信道资源和/或CSI-RS资源的关联关系,确定所述终端关联的AP集合,如图15所示,M个AP组成终端候选服务AP集合即候选AP集合,K个AP组成终端关联的AP集合即目标AP集合,候选AP集合中的M个AP包括目标AP集合中的K个AP。
对于AP集合的管理,也可以通过第三信道和/或SRS的测量进行,并将RSRP和/或SINR测量结果作为度量标准。例如CPU将网络中的M个AP作为终端的候选服务AP集合,接收终端发送的第三信道和/或SRS,CPU根据所述M个AP的RSRP和/或SINR测量结果,确定所述终端关联的AP集合。
需要说明的是,NTN系统中不同AP与终端的传输时延差异较大,因此终端在进行第一信道和/或CSI-RS测量时需要考虑不同AP的传输时延。在一种可能的实现方式中,AP将第一信道资源和/或CSI-RS资源与星历信息的关联关系指示给终端,则终端在测量第一信道和/或CSI-RS时,首先根据第一信道资源和/或CSI-RS资源关联的星历信息计算传输时延,并在考虑传播时延影响后的时域位置进行第一信道测量和/或CSI-RS测量。
例如,候选服务AP集合中的AP#1和AP#2分别关联CSI-RS资源#1和CSI-RS资源#2,且通知终端AP#1和AP#2的星历信息。使得终端在进行CSI-RS测量时,首先根据AP#1和AP#2的星历信息计算出传输时延分别为T1和T2,随后在测量CSI-RS#2时相对于测量CSI-RS#1额外延迟T2-T1的时间长度。
以上结合附图详细描述了本申请的优选实施方式,但是,本申请并不限于上述实施方式中的具体细节,在本申请的技术构思范围内,可以对本申请的技术方案进行多种简单变型,这些简单变型均属于本申请的保护范围。例如,在上述具体实施方式中所描述的各个具体技术特征,在不矛盾的情况下,可以通过任何合适的方式进行组合,为了避免不必要的重复,本申请对各种可能的组合方式不再另行说明。又例如,本申请的各种不同的实施方式之间也可以进行任意组合,只要其不违背本申请的思想,其同样应当视为本申请所公开的内容。又例如,在不冲突的前提下,本申请描述的各个实施例和/或各个实施例中的技术特征可以和现有技术任意的相互组合,组合之后得到的技术方案也应落入本申请的保护范围。
还应理解,在本申请的各种方法实施例中,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。此外,在本申请实施例中,术语“下行”、“上行”和“侧行”用于表示信号或数据的传输方向,其中,“下行”用于表示信号或数据的传输方向为从站点发送至小区的用户设备的第一方向,“上行”用于表示信号或数据的传输方向为从小区的用户设备发送至站点的第二方向,“侧行”用于表示信号或数据的传输方向为从用户设备1发送至用户设备2的第三方向。例如,“下行信号”表示该信号的传输方向为第一方向。另外,本申请实施例中,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。具体地,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“/”,一般表示前后关联对象是一种“或”的关系。
图16是本申请实施例提供的无线通信终端设备的结构组成示意图,如图16所示,包括:
第一通信1601,配置为接收第一接入设备集合发送的至少一个第一信道,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的所述至少一个第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
在一些实施例中,第一接收功率用于确定所述第一接入设备集合是否为所述目标接入设备集
合,所述第一接收功率基于所述终端设备接收的所述第一接入设备集合发送的所述第一信道的接收功率确定。
在一些实施例中,所述第一信道承载有下行同步信号,所述下行同步信号用于所述终端设备与发送所述第一信道的接入设备集合进行下行同步。
在一些实施例中,不同接入设备集合发送的所述第一信道中的下行同步信号使用不同的第一伪随机序列发送。
在一些实施例中,所述第一信道携带以下至少之一:
第一指示信息,所述第一指示信息指示第一资源的位置,所述第一资源为所述第一信道的传输占用的资源,所述第一资源的位置用于时域定位和/或频域定位;
第二指示信息,所述第二指示信息指示第二资源,所述第二资源为第二信道的传输占用的资源,所述第二信道为所述第一信道之后的无线信道;
第一信息,所述第一信息用于所述终端设备确定第一定时提前TA。
在一些实施例中,第一通信单元1601,还配置为若确定所述第一接入设备集合为所述目标接入设备集合,向所述第一接入设备集合发送第三信道,所述第三信道用于所述终端设备与所述第一接入设备集合建立关联关系。
在一些实施例中,所述第三信道承载有上行同步信号,所述上行同步信号用于所述终端设备与所述目标接入设备集合进行上行同步。
在一些实施例中,所述第三信道传输占用的第三资源基于以下至少之一确定:
第一资源和第一偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第一偏移量为所述第三资源相对于所述第一资源在时域和/或频域上的偏移量;
第三指示信息,所述第三指示信息用于指示所述第三资源在频域和/或时域上的位置和/或大小。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第一偏移量;
所述第三指示信息。
在一些实施例中,第一通信单元1601,还配置为接收所述第一接入设备集合发送的第四信道,所述第四信道用于携带所述第一接入设备集合对应的第一随机接入配置信息,所述第一随机接入配置信息用于所述终端设备接入所述第一接入设备集合的随机接入过程。
在一些实施例中,所述第一随机接入配置信息包括以下至少之一:
第一频率范围,所述第一频率范围为随机接入过程中的下行信道传输所在的频率范围;
第二频率范围,所述第二频率范围为随机接入过程中的上行信道传输所在的频率范围。
在一些实施例中,所述第四信道还用于携带以下至少之一:
第四指示信息,所述第四指示信息用于指示第四资源的时域位置,所述第四资源为所述第四信道的传输占用的资源,所述第四资源的时域位置用于时域定位;
第一信息,所述第一信息用于所述终端设备确定第一TA;
随机接入响应RAR消息。
在一些实施例中,所述第一TA用于调整第一上行传输的发送时间,所述第一上行传输为收到所述第一信息后的上行传输。
在一些实施例中,所述第四信道的接收先于第三信道的发送,所述第三信道为确定所述第一接入设备集合为所述目标接入设备集合的情况下所述终端设备发送至所述第一接入设备集合的信道,所述第三信道用于所述终端设备与所述目标接入设备集合建立关联关系;或,
所述第三信道的发送先于所述第四信道的接收。
在一些实施例中,所述第四信道的传输占用的第四资源基于以下至少之一确定:
第一资源和第二偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第二偏移量为所述第四资源相对于所述第一资源在时域和/或频域上的偏移量;
第三资源和第三偏移量,所述第三资源为所述第四信道之前的第三信道的传输占用的资源,所述第三偏移量为所述第四资源相对所述第三资源在时域和/或频域上的偏移量;
第五指示信息,所述第五指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;
第五信道,所述第五信道用于调度所述第四信道。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第二偏移量;
所述第三偏移量;
所述第五指示信息。
在一些实施例中,所述第五信道包括以下至少之一:
第六指示信息,所述第六指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;
第四偏移量,所述第四偏移量为所述第四资源相对于所述第五信道的传输占用的第五资源在时域和/或频域上的偏移量。
在一些实施例中,所述第五信道的传输占用的第五资源基于以下至少之一确定:
所述第一资源和第五偏移量,所述第五偏移量为所述第五资源相对于所述第一资源在时域和/或频域上的偏移量;
所述第三资源和第六偏移量,所述第六偏移量为所述第五资源相对所述第三资源在时域和/或频域上的偏移量;
第七指示信息,所述第七指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;
第六信道,所述第六信道用于指示所述第五资源在时域和/或频域上的位置和/或大小。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第五偏移量;
所述第六偏移量;
所述第七指示信息。
在一些实施例中,所述第六信道包括以下至少之一:
第八指示信息,所述第八指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;
第七偏移量,所述第七偏移量为所述第五资源相对于所述第六信道的传输占用的第六资源在时域和/或频域上的偏移量;
第九指示信息,所述第九指示信息用于指示所述第六资源的位置,所述第六资源的位置用于时域定位和/或频域定位。
在一些实施例中,所述第六信道的传输占用的第六资源基于以下至少之一确定:
所述第一资源和第八偏移量,所述第八偏移量为所述第六资源相对于所述第一资源在时域和/或频域上的偏移量;
所述第三资源和第九偏移量,所述第九偏移量为所述第六资源相对于所述第三资源在时域和/或频域上的偏移量;
第十指示信息,所述第十指示信息用于指示所述第六资源在时域和/或频域上的位置和/或大小。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第八偏移量;
所述第九偏移量;
所述第十指示信息。
在一些实施例中,第一通信单元1601,还配置为若确定所述第一接入设备集合为所述目标接入设备集合,发送或接收第七信道,所述第七信道用于对所述目标接入设备集合所包括的接入设备进行更新。
在一些实施例中,候选接入设备集合中接入设备对应的测量结果,用于对所述目标接入设备集合进行更新,所述候选接入设备集合包括所述第一接入设备集合中的接入设备。
在一些实施例中,所述测量结果包括以下至少之一:
参考信号接收功率RSRP;
信号与干扰加噪声比SINR。
在一些实施例中,对于所述候选接入设备集合中的候选接入设备,所述第七信道包括以下至少之一:
上行测量信道;
下行测量信道。
在一些实施例中,所述下行测量信道包括以下之一:
所述第一信道;
信道状态信息参考信号。
在一些实施例中,所述上行测量信道包括以下之一:
第三信道,所述第三信道用于所述终端设备与所述目标接入设备集合建立关联关系;
探测参考信号。
图17是本申请实施例提供的第一接入设备的结构组成示意图,如图17所示,包括:
第二通信单元1701,配置为向终端设备发送第一信道,所述第一接入设备属于的第一接入设备集合,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的至少一个所述第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
在一些实施例中,第一接收功率用于确定所述第一接入设备集合是否为所述目标接入设备集合,所述第一接收功率基于所述终端设备接收的所述第一接入设备集合发送的所述第一信道的接收功率确定。
在一些实施例中,所述第一信道承载有下行同步信号,所述下行同步信号用于所述终端设备与发送所述第一信道的接入设备集合进行下行同步。
在一些实施例中,不同接入设备集合发送的所述第一信道中的下行同步信号使用不同的第一伪随机序列发送。
在一些实施例中,所述第一信道携带以下至少之一:
第一指示信息,所述第一指示信息指示第一资源的位置,所述第一资源为所述第一信道的传输占用的资源,所述第一资源的位置用于时域定位和/或频域定位;
第二指示信息,所述第二指示信息指示第二资源,所述第二资源为第二信道的传输占用的资源,所述第二信道为所述第一信道之后的无线信道;
第一信息,所述第一信息用于所述终端设备确定第一定时提前TA。
在一些实施例中,第二通信单元1701,还配置为若确定所述第一接入设备集合为所述目标接入设备集合,接收所述终端设备发送的第三信道,所述第三信道用于所述终端设备与所述第一接入设备集合建立关联关系。
在一些实施例中,所述第三信道承载有上行同步信号,所述上行同步信号用于所述终端设备与所述目标接入设备集合进行上行同步。
在一些实施例中,所述第三信道传输占用的第三资源基于以下至少之一确定:
第一资源和第一偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第一偏移量为所述第三资源相对于所述第一资源在时域和/或频域上的偏移量;
第三指示信息,所述第三指示信息用于指示所述第三资源在频域和/或时域上的位置和/或大小。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第一偏移量;
所述第三指示信息。
在一些实施例中,第二通信单元1701,还配置为向所述终端设备发送第四信道,所述第四信道用于携带所述第一接入设备集合对应的第一随机接入配置信息,所述第一随机接入配置信息用于所述终端设备接入所述第一接入设备集合的随机接入过程。
在一些实施例中,所述第一随机接入配置信息包括以下至少之一:
第一频率范围,所述第一频率范围为随机接入过程中的下行信道传输所在的频率范围;
第二频率范围,所述第二频率范围为随机接入过程中的上行信道传输所在的频率范围。
在一些实施例中,所述第四信道还用于携带以下至少之一:
第四指示信息,所述第四指示信息用于指示第四资源的时域位置,所述第四资源为所述第四信道的传输占用的资源,所述第四资源的时域位置用于时域定位;
第一信息,所述第一信息用于所述终端设备确定第一TA;
随机接入响应RAR消息。
在一些实施例中,所述第一TA用于调整第一上行传输的发送时间,所述第一上行传输为收到所述第一信息后的上行传输。
在一些实施例中,所述第四信道的接收先于第三信道的发送,所述第三信道为确定所述第一
接入设备集合为所述目标接入设备集合的情况下所述终端设备发送至所述第一接入设备集合的信道,所述第三信道用于所述终端设备与所述目标接入设备集合建立关联关系;或,
所述第三信道的发送先于所述第四信道的接收。
在一些实施例中,所述第四信道的传输占用的第四资源基于以下至少之一确定:
第一资源和第二偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第二偏移量为所述第四资源相对于所述第一资源在时域和/或频域上的偏移量;
第三资源和第三偏移量,所述第三资源为所述第四信道之前的第三信道的传输占用的资源,所述第三偏移量为所述第四资源相对所述第三资源在时域和/或频域上的偏移量;
第五指示信息,所述第五指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;
第五信道,所述第五信道用于调度所述第四信道。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第二偏移量;
所述第三偏移量;
所述第五指示信息。
在一些实施例中,所述第五信道包括以下至少之一:
第六指示信息,所述第六指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;
第四偏移量,所述第四偏移量为所述第四资源相对于所述第五信道的传输占用的第五资源在时域和/或频域上的偏移量。
在一些实施例中,所述第五信道的传输占用的第五资源基于以下至少之一确定:
所述第一资源和第五偏移量,所述第五偏移量为所述第五资源相对于所述第一资源在时域和/或频域上的偏移量;
所述第三资源和第六偏移量,所述第六偏移量为所述第五资源相对所述第三资源在时域和/或频域上的偏移量;
第七指示信息,所述第七指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;
第六信道,所述第六信道用于指示所述第五资源在时域和/或频域上的位置和/或大小。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第五偏移量;
所述第六偏移量;
所述第七指示信息。
在一些实施例中,所述第六信道包括以下至少之一:
第八指示信息,所述第八指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;
第七偏移量,所述第七偏移量为所述第五资源相对于所述第六信道的传输占用的第六资源在时域和/或频域上的偏移量;
第九指示信息,所述第九指示信息用于指示所述第六资源的位置,所述第六资源的位置用于时域定位和/或频域定位。
在一些实施例中,所述第六信道的传输占用的第六资源基于以下至少之一确定:
所述第一资源和第八偏移量,所述第八偏移量为所述第六资源相对于所述第一资源在时域和/或频域上的偏移量;
所述第三资源和第九偏移量,所述第九偏移量为所述第六资源相对于所述第三资源在时域和/或频域上的偏移量;
第十指示信息,所述第十指示信息用于指示所述第六资源在时域和/或频域上的位置和/或大小。
在一些实施例中,由协议约定或由所述第一信道指示以下至少之一:
所述第八偏移量;
所述第九偏移量;
所述第十指示信息。
在一些实施例中,第二通信单元1701,还配置为若确定所述第一接入设备集合为所述目标接
入设备集合,接收或发送第七信道,所述第七信道用于对所述目标接入设备集合所包括的接入设备进行更新。
在一些实施例中,候选接入设备集合中接入设备对应的测量结果,用于对所述目标接入设备集合进行更新,所述候选接入设备集合包括所述第一接入设备集合中的接入设备。
在一些实施例中,所述测量结果包括以下至少之一:
参考信号接收功率RSRP;
信号与干扰加噪声比SINR。
在一些实施例中,对于所述候选接入设备集合中的候选接入设备,所述第七信道包括以下至少之一:
上行测量信道;
下行测量信道。
在一些实施例中,所述下行测量信道包括以下之一:
所述第一信道;
信道状态信息参考信号。
在一些实施例中,所述上行测量信道包括以下之一:
第三信道,所述第三信道用于所述终端设备与所述目标接入设备集合建立关联关系;
探测参考信号。
本领域技术人员应当理解,本申请实施例的上述终端设备或第一接入设备的相关描述可以参照本申请实施例的无线通信方法的相关描述进行理解。
图18是本申请实施例提供的一种通信设备1800示意性结构图。该通信设备可以为终端设备或第一接入设备。图18所示的通信设备1800包括处理器1810,处理器1810可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图18所示,通信设备1800还可以包括存储器1820。其中,处理器1810可以从存储器1820中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器1820可以是独立于处理器1810的一个单独的器件,也可以集成在处理器1810中。
可选地,如图18所示,通信设备1800还可以包括收发器1830,处理器1810可以控制该收发器1830与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器1830可以包括发射机和接收机。收发器1830还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备1800具体可为本申请实施例的第一接入设备,并且该通信设备1800可以实现本申请实施例的各个方法中由第一接入设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备1800具体可为本申请实施例的移动终端/终端设备,并且该通信设备1800可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
图19是本申请实施例的芯片的示意性结构图。图19所示的芯片1900包括处理器1910,处理器1910可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图19所示,芯片1900还可以包括存储器1920。其中,处理器1910可以从存储器1920中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器1920可以是独立于处理器1910的一个单独的器件,也可以集成在处理器1910中。
可选地,该芯片1900还可以包括输入接口1930。其中,处理器1910可以控制该输入接口1930与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该芯片1900还可以包括输出接口1940。其中,处理器1910可以控制该输出接口1940与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该芯片可应用于本申请实施例中的第一接入设备,并且该芯片可以实现本申请实施例的各个方法中由第一接入设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该芯片可应用于本申请实施例中的移动终端/终端设备,并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
图20是本申请实施例提供的一种通信系统2000的示意性框图。如图20所示,该通信系统2000包括终端设备2010和第一接入设备2020。
其中,该终端设备2010可以用于实现上述方法中由终端设备实现的相应的功能,以及该第一接入设备2020可以用于实现上述方法中由第一接入设备实现的相应的功能为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(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。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。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。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,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(Dynamic RAM,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)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,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(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的第一接入设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第一接入设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请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。
可选的,该计算机程序产品可应用于本申请实施例中的第一接入设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由第一接入设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的第一接入设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由第一接入设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算
机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,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,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的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。
所述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存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品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所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,)ROM、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。
Claims (63)
- 一种无线通信方法,所述方法包括:终端设备接收第一接入设备集合发送的至少一个第一信道,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的至少一个第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
- 根据权利要求1所述的方法,其中,第一接收功率用于确定所述第一接入设备集合是否为所述目标接入设备集合,所述第一接收功率基于所述终端设备接收的所述第一接入设备集合发送的所述第一信道的接收功率确定。
- 根据权利要求1或2所述的方法,其中,所述第一信道承载有下行同步信号,所述下行同步信号用于所述终端设备与发送所述第一信道的接入设备集合进行下行同步。
- 根据权利要求3所述的方法,其中,不同接入设备集合发送的所述第一信道中的下行同步信号使用不同的第一伪随机序列发送。
- 根据权利要求1至4任一项所述的方法,其中,所述第一信道携带以下至少之一:第一指示信息,所述第一指示信息指示第一资源的位置,所述第一资源为所述第一信道的传输占用的资源,所述第一资源的位置用于时域定位和/或频域定位;第二指示信息,所述第二指示信息指示第二资源,所述第二资源为第二信道的传输占用的资源,所述第二信道为所述第一信道之后的无线信道;第一信息,所述第一信息用于所述终端设备确定第一定时提前TA。
- 根据权利要求1至5任一项所述的方法,其中,若确定所述第一接入设备集合为所述目标接入设备集合,所述方法还包括:所述终端设备向所述第一接入设备集合发送第三信道,所述第三信道用于所述终端设备与所述第一接入设备集合建立关联关系。
- 根据权利要求6所述的方法,其中,所述第三信道承载有上行同步信号,所述上行同步信号用于所述终端设备与所述目标接入设备集合进行上行同步。
- 根据权利要求6至7任一项所述的方法,其中,所述第三信道传输占用的第三资源基于以下至少之一确定:第一资源和第一偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第一偏移量为所述第三资源相对于所述第一资源在时域和/或频域上的偏移量;第三指示信息,所述第三指示信息用于指示所述第三资源在频域和/或时域上的位置和/或大小。
- 根据权利要求8所述的方法,其中,由协议约定或由所述第一信道指示以下至少之一:所述第一偏移量;所述第三指示信息。
- 根据权利要求1至9任一项所述的方法,其中,所述方法还包括:所述终端设备接收所述第一接入设备集合发送的第四信道,所述第四信道用于携带所述第一接入设备集合对应的第一随机接入配置信息,所述第一随机接入配置信息用于所述终端设备接入所述第一接入设备集合的随机接入过程。
- 根据权利要求10所述的方法,其中,所述第一随机接入配置信息包括以下至少之一:第一频率范围,所述第一频率范围为随机接入过程中的下行信道传输所在的频率范围;第二频率范围,所述第二频率范围为随机接入过程中的上行信道传输所在的频率范围。
- 根据权利要求10或11所述的方法,其中,所述第四信道还用于携带以下至少之一:第四指示信息,所述第四指示信息用于指示第四资源的时域位置,所述第四资源为所述第四信道的传输占用的资源,所述第四资源的时域位置用于时域定位;第一信息,所述第一信息用于所述终端设备确定第一TA;随机接入响应RAR消息。
- 根据权利要求5或12所述的方法,其中,所述第一TA用于调整第一上行传输的发送时间,所述第一上行传输为收到所述第一信息后的上行传输。
- 根据权利要求10至13任一项所述的方法,其中,所述第四信道的接收先于第三信道的发送,所述第三信道为确定所述第一接入设备集合为所述目标接入设备集合的情况下所述终端设备发送至所述第一接入设备集合的信道,所述第三信道用于所述终端设备与所述目标接入设备集合建立关联关系;或,所述第三信道的发送先于所述第四信道的接收。
- 根据权利要求10至12、14任一项所述的方法,其中,所述第四信道的传输占用的第四资源基于以下至少之一确定:第一资源和第二偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第二偏移量为所述第四资源相对于所述第一资源在时域和/或频域上的偏移量;第三资源和第三偏移量,所述第三资源为所述第四信道之前的第三信道的传输占用的资源,所述第三偏移量为所述第四资源相对所述第三资源在时域和/或频域上的偏移量;第五指示信息,所述第五指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;第五信道,所述第五信道用于调度所述第四信道。
- 根据权利要求15所述的方法,其中,由协议约定或由所述第一信道指示以下至少之一:所述第二偏移量;所述第三偏移量;所述第五指示信息。
- 根据权利要求15所述的方法,其中,所述第五信道包括以下至少之一:第六指示信息,所述第六指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;第四偏移量,所述第四偏移量为所述第四资源相对于所述第五信道的传输占用的第五资源在时域和/或频域上的偏移量。
- 根据权利要求15所述的方法,其中,所述第五信道的传输占用的第五资源基于以下至少之一确定:所述第一资源和第五偏移量,所述第五偏移量为所述第五资源相对于所述第一资源在时域和/或频域上的偏移量;所述第三资源和第六偏移量,所述第六偏移量为所述第五资源相对所述第三资源在时域和/或频域上的偏移量;第七指示信息,所述第七指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;第六信道,所述第六信道用于指示所述第五资源在时域和/或频域上的位置和/或大小。
- 根据权利要求18所述的方法,其中,由协议约定或由所述第一信道指示以下至少之一:所述第五偏移量;所述第六偏移量;所述第七指示信息。
- 根据权利要求18所述的方法,其中,所述第六信道包括以下至少之一:第八指示信息,所述第八指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;第七偏移量,所述第七偏移量为所述第五资源相对于所述第六信道的传输占用的第六资源在时域和/或频域上的偏移量;第九指示信息,所述第九指示信息用于指示所述第六资源的位置,所述第六资源的位置用于时域定位和/或频域定位。
- 根据权利要求18或20所述的方法,其中,所述第六信道的传输占用的第六资源基于以下至少之一确定:所述第一资源和第八偏移量,所述第八偏移量为所述第六资源相对于所述第一资源在时域和/或频域上的偏移量;所述第三资源和第九偏移量,所述第九偏移量为所述第六资源相对于所述第三资源在时域和/或频域上的偏移量;第十指示信息,所述第十指示信息用于指示所述第六资源在时域和/或频域上的位置和/或大小。
- 根据权利要求21所述的方法,其中,由协议约定或由所述第一信道指示以下至少之一:所述第八偏移量;所述第九偏移量;所述第十指示信息。
- 根据权利要求1至22任一项所述的方法,其中,若确定所述第一接入设备集合为所述目标接入设备集合,所述方法还包括:所述终端设备发送或接收第七信道,所述第七信道用于对所述目标接入设备集合所包括的接入设备进行更新。
- 根据权利要求23所述的方法,其中,候选接入设备集合中候选接入设备对应的测量结果,用于对所述目标接入设备集合进行更新,所述候选接入设备集合包括所述第一接入设备集合中的接入设备。
- 根据权利要求24所述的方法,其中,所述测量结果包括以下至少之一:参考信号接收功率RSRP;信号与干扰加噪声比SINR。
- 根据权利要求24或25所述的方法,其中,对于所述候选接入设备集合中的候选接入设备,所述第七信道包括以下至少之一:上行测量信道;下行测量信道。
- 根据权利要求26所述的方法,其中,所述下行测量信道包括以下之一:所述第一信道;信道状态信息参考信号。
- 根据权利要求26所述的方法,其中,所述上行测量信道包括以下之一:第三信道,所述第三信道用于所述终端设备与所述目标接入设备集合建立关联关系;探测参考信号。
- 一种无线通信方法,包括:第一接入设备向终端设备发送第一信道,所述第一接入设备属于第一接入设备集合,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的至少一个所述第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
- 根据权利要求29所述的方法,其中,第一接收功率用于确定所述第一接入设备集合是否为所述目标接入设备集合,所述第一接收功率基于所述终端设备接收的所述第一接入设备集合发送的所述第一信道的接收功率确定。
- 根据权利要求29或30所述的方法,其中,所述第一信道承载有下行同步信号,所述下行同步信号用于所述终端设备与发送所述第一信道的接入设备集合进行下行同步。
- 根据权利要求31所述的方法,其中,不同接入设备集合中的接入设备发送的所述第一信道中的下行同步信号使用不同的第一伪随机序列发送。
- 根据权利要求29至32任一项所述的方法,其中,所述第一信道携带以下至少之一:第一指示信息,所述第一指示信息指示第一资源的位置,所述第一资源为所述第一信道的传输占用的资源,所述第一资源的位置用于时域定位和/或频域定位;第二指示信息,所述第二指示信息指示第二资源,所述第二资源为第二信道的传输占用的资源,所述第二信道为所述第一信道之后的无线信道;第一信息,所述第一信息用于所述终端设备确定第一定时提前TA。
- 根据权利要求29至33任一项所述的方法,其中,若确定所述第一接入设备集合为所述目标接入设备集合,所述方法还包括:所述第一接入设备接收所述终端设备发送的第三信道,所述第三信道用于所述终端设备与所述第一接入设备集合建立关联关系。
- 根据权利要求34所述的方法,其中,所述第三信道承载有上行同步信号,所述上行同步信号用于所述终端设备与所述目标接入设备集合进行上行同步。
- 根据权利要求34至35任一项所述的方法,其中,所述第三信道传输占用的第三资源基于以下至少之一确定:第一资源和第一偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第一偏移量为所述第三资源相对于所述第一资源在时域和/或频域上的偏移量;第三指示信息,所述第三指示信息用于指示所述第三资源在频域和/或时域上的位置和/或大小。
- 根据权利要求36所述的方法,其中,由协议约定或由所述第一信道指示以下至少之一:所述第一偏移量;所述第三指示信息。
- 根据权利要求29至37任一项所述的方法,其中,所述方法还包括:所述第一接入设备向所述终端设备发送的第四信道,所述第四信道用于携带所述第一接入设备集合对应的第一随机接入配置信息,所述第一随机接入配置信息用于所述终端设备接入所述第一接入设备集合的随机接入过程。
- 根据权利要求38所述的方法,其中,所述第一随机接入配置信息包括以下至少之一:第一频率范围,所述第一频率范围为随机接入过程中的下行信道传输所在的频率范围;第二频率范围,所述第二频率范围为随机接入过程中的上行信道传输所在的频率范围。
- 根据权利要求38或39所述的方法,其中,所述第四信道还用于携带以下至少之一:第四指示信息,所述第四指示信息用于指示第四资源的时域位置,所述第四资源为所述第四信道的传输占用的资源,所述第四资源的时域位置用于时域定位;第一信息,所述第一信息用于所述终端设备确定第一TA;随机接入响应RAR消息。
- 根据权利要求33或40所述的方法,其中,所述第一TA用于调整第一上行传输的发送时间,所述第一上行传输为收到所述第一信息后的上行传输。
- 根据权利要求38至41任一项所述的方法,其中,所述第四信道的接收先于第三信道的发送,所述第三信道为确定所述第一接入设备集合为所述目标接入设备集合的情况下所述终端设备发送至所述第一接入设备集合的信道,所述第三信道用于所述终端设备与所述目标接入设备集合建立关联关系;或,所述第三信道的发送先于所述第四信道的接收。
- 根据权利要求38至40、42任一项所述的方法,其中,所述第四信道的传输占用的第四资源基于以下至少之一确定:第一资源和第二偏移量,所述第一资源为所述第一信道的传输占用的资源,所述第二偏移量为所述第四资源相对于所述第一资源在时域和/或频域上的偏移量;第三资源和第三偏移量,所述第三资源为所述第四信道之前的第三信道的传输占用的资源,所述第三偏移量为所述第四资源相对所述第三资源在时域和/或频域上的偏移量;第五指示信息,所述第五指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;第五信道,所述第五信道用于调度所述第四信道。
- 根据权利要求43所述的方法,其中,由协议约定或由所述第一信道指示以下至少之一:所述第二偏移量;所述第三偏移量;所述第五指示信息。
- 根据权利要求43所述的方法,其中,所述第五信道包括以下至少之一:第六指示信息,所述第六指示信息用于指示所述第四资源在频域和/或时域上的位置和/或大小;第四偏移量,所述第四偏移量为所述第四资源相对于所述第五信道的传输占用的第五资源在时域和/或频域上的偏移量。
- 根据权利要求43所述的方法,其中,所述第五信道的传输占用的第五资源基于以下至少之一确定:所述第一资源和第五偏移量,所述第五偏移量为所述第五资源相对于所述第一资源在时域和/或频域上的偏移量;所述第三资源和第六偏移量,所述第六偏移量为所述第五资源相对所述第三资源在时域和/或频域上的偏移量;第七指示信息,所述第七指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;第六信道,所述第六信道用于指示所述第五资源在时域和/或频域上的位置和/或大小。
- 根据权利要求43所述的方法,其中,由协议约定或由所述第一信道指示以下至少之一:所述第五偏移量;所述第六偏移量;所述第七指示信息。
- 根据权利要求46所述的方法,其中,所述第六信道包括以下至少之一:第八指示信息,所述第八指示信息用于指示所述第五资源在时域和/或频域上的位置和/或大小;第七偏移量,所述第七偏移量为所述第五资源相对于所述第六信道的传输占用的第六资源在时域和/或频域上的偏移量;第九指示信息,所述第九指示信息用于指示所述第六资源的位置,所述第六资源的位置用于时域定位和/或频域定位。
- 根据权利要求46或48所述的方法,其中,所述第六信道的传输占用的第六资源基于以下至少之一确定:所述第一资源和第八偏移量,所述第八偏移量为所述第六资源相对于所述第一资源在时域和/或频域上的偏移量;所述第三资源和第九偏移量,所述第九偏移量为所述第六资源相对于所述第三资源在时域和/或频域上的偏移量;第十指示信息,所述第十指示信息用于指示所述第六资源在时域和/或频域上的位置和/或大小。
- 根据权利要求49所述的方法,其中,由协议约定或由所述第一信道指示以下至少之一:所述第八偏移量;所述第九偏移量;所述第十指示信息。
- 根据权利要求29至50任一项所述的方法,其中,若确定所述第一接入设备集合为所述目标接入设备集合,所述方法还包括:所述第一接入设备接收或发送第七信道,所述第七信道用于所述终端设备对所述目标接入设备集合所包括的接入设备进行更新。
- 根据权利要求51所述的方法,其中,候选接入设备集合中候选接入设备对应的测量结果,用于对所述目标接入设备集合进行更新,所述候选接入设备集合包括所述第一接入设备集合中的接入设备。
- 根据权利要求52所述的方法,其中,所述测量结果包括以下至少之一:参考信号接收功率RSRP;信号与干扰加噪声比SINR。
- 根据权利要求52或53所述的方法,其中,对于所述候选接入设备集合中的候选接入设备,所述第七信道包括以下至少之一:上行测量信道;下行测量信道。
- 根据权利要求54所述的方法,其中,所述下行测量信道包括以下之一:所述第一信道;信道状态信息参考信号。
- 根据权利要求54所述的方法,其中,所述上行测量信道包括以下之一:第三信道,所述第三信道用于所述终端设备与所述目标接入设备集合建立关联关系;探测参考信号。
- 一种终端设备,包括:第一通信单元,配置为接收第一接入设备集合发送的至少一个第一信道,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的所述至少一个第一信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
- 一种第一接入设备,包括:第二通信单元,配置为向终端设备发送第一信道,所述第一接入设备属于第一接入设备集合,所述第一接入设备集合包括至少一个接入设备,所述第一接入设备集合发送的至少一个所述第一 信道用于确定所述第一接入设备集合是否为目标接入设备集合,所述目标接入设备集合用于与所述终端设备进行数据通信。
- 一种通信设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至28中任一项所述的方法,或者执行如权利要求29至56中任一项所述的方法。
- 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备,执行如权利要求1至28中任一项所述的方法,或者执行如权利要求29至56中任一项所述的方法。
- 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机,执行如权利要求1至28中任一项所述的方法,或者执行如权利要求29至56中任一项所述的方法。
- 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机,执行如权利要求1至28中任一项所述的方法,或者执行如权利要求29至56中任一项所述的方法。
- 一种计算机程序,所述计算机程序使得计算机,执行如权利要求1至28中任一项所述的方法,或者执行如权利要求29至56中任一项所述的方法。
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