WO2021244378A1 - 小区接入方法、装置、设备和存储介质 - Google Patents

小区接入方法、装置、设备和存储介质 Download PDF

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Publication number
WO2021244378A1
WO2021244378A1 PCT/CN2021/096223 CN2021096223W WO2021244378A1 WO 2021244378 A1 WO2021244378 A1 WO 2021244378A1 CN 2021096223 W CN2021096223 W CN 2021096223W WO 2021244378 A1 WO2021244378 A1 WO 2021244378A1
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Prior art keywords
cell
signal
information
application
node
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PCT/CN2021/096223
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English (en)
French (fr)
Inventor
夏树强
郁光辉
谢峰
陈艺戬
袁志锋
胡留军
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ZTE Corp
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ZTE Corp
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Priority to US17/924,270 priority Critical patent/US20230180156A1/en
Priority to EP21817997.6A priority patent/EP4164296A4/en
Priority to JP2022574800A priority patent/JP7522868B2/ja
Priority to KR1020237000439A priority patent/KR102941117B1/ko
Publication of WO2021244378A1 publication Critical patent/WO2021244378A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • This application relates to the field of wireless communication technologies, for example, to a cell access method, device, device, and storage medium.
  • each user equipment In a cell-free system, each user equipment (User Equipment, UE) has a cell centered on itself, and the cell moves along with it when the UE moves, thereby minimizing the number of cells. The impact of inter-interference, frequent handover, etc. on the UE.
  • the UE In the cell-free technology, the UE needs to establish a radio resource control (Radio Resource Control, RRC) connection with a cell in the cellular system according to the cellular form, and then switch the UE from the cellular system to the cell-free system.
  • RRC Radio Resource Control
  • the above method causes the UE to still face serious inter-cell interference and frequent cell selection/cell reselection when accessing the cell-free system.
  • This application provides a cell access method, device, equipment, and storage medium to reduce the impact of the cellular system corresponding to the cell.
  • the embodiment of the present application provides a cell access method, which is applied to a first node, and includes:
  • a first synchronization signal and first system information sent by a second node in a first cell where the first synchronization signal is used for downlink synchronization between the first node and the first cell, and the first system information carries the first synchronization signal
  • One resource indication information where the first resource indication information includes at least resources required to indicate sending a first application signal; sending a first application signal, where the first application signal is used to request a second node to send the first information; Receiving first information, where the first information is used to instruct the first node to access the second cell based on the first information.
  • An embodiment of the present application also provides a cell access method, which is applied to a second node, and includes:
  • the first synchronization signal and first system information periodically sent in the first cell; wherein the first synchronization signal is used for downlink synchronization of the first node with the first cell, and the first system information carries the first resource Indication information, the first resource indication information is used to indicate resources required to send the first application signal; receiving the first application signal; wherein the first application signal is used to request the second node to send the first information; Send first information, where the first information is used to instruct the first node to access the second cell based on the first information.
  • An embodiment of the present application also provides a cell access device, which is configured in a first node and includes:
  • the first receiving module is configured to receive the first synchronization signal and the first system information sent by the second node in the first cell, where the first synchronization signal is used for downlink synchronization between the first node and the first cell, so
  • the first system information carries first resource indication information, and the first resource indication information is used to indicate resources required to send the first application signal;
  • the first sending module is configured to send the first application signal, wherein The first application signal is used to request the second node to send the first information;
  • the second receiving module is configured to receive the first information, wherein the first information is used to instruct the first node to access based on the first information The second cell.
  • An embodiment of the present application also provides a cell access device, which is configured in a second node and includes:
  • the second sending module is configured to periodically send the first synchronization signal and the first system information in the first cell; wherein the first synchronization signal is used for the downlink synchronization of the first node with the first cell, and the second
  • the first resource indication information is carried in one system information, and the first resource indication information is used to indicate the resources required to send the first application signal
  • the third receiving module is configured to receive the first application signal;
  • the first application signal is used to request the second node to send the first information;
  • the third sending module is configured to send the first information, where the first information is used to instruct the first node to access based on the first information The second cell.
  • An embodiment of the present application also provides a device, including:
  • One or more processors a memory for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors can realize The cell access method provided by the embodiment.
  • the embodiment of the present application also provides a storage medium, where the storage medium stores a computer program, and the computer program, when executed by a processor, implements the cell access method provided in the embodiment of the present application.
  • Figure 1 is a flowchart of a cell access method provided by an embodiment of the present application.
  • Figure 2 is a flowchart of a cell access method provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of a method for dual application signals to apply for access to a cell according to an embodiment of the present application
  • FIG. 4 is a flowchart of a method for interacting with dual application signals to apply for access to a cell according to an embodiment of the present application
  • FIG. 5 is a flowchart of another method for applying for access to a cell with dual application signals according to an embodiment of the present application
  • FIG. 6 is a flowchart of another method for interacting with a dual application signal to apply for access to a cell provided by an embodiment of the present application;
  • FIG. 7 is a flowchart of a method for applying for access to a cell with a single application signal according to an embodiment of the present application
  • FIG. 8 is a flowchart of another method for applying for access to a cell with a single application signal provided by an embodiment of the present application
  • FIG. 9 is a flowchart of another method for applying for cell access with a single application signal provided by an embodiment of the present application.
  • FIG. 10 is a flowchart of another method for applying for access to a cell with a single application signal according to an embodiment of the present application
  • FIG. 11 is a flowchart of another method for applying for access to a cell with a single application signal according to an embodiment of the present application
  • FIG. 12 is a flowchart of another method for applying for access to a cell with a single application signal provided by an embodiment of the present application;
  • FIG. 13 is a flowchart of another method for applying for cell access with a single application signal provided by an embodiment of the present application
  • FIG. 14 is a schematic structural diagram of a cell access device provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a cell access device provided by an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • the cellular network architecture improves the utilization rate of spectrum resources and system capacity through frequency reuse and cell splitting technologies, and supports the rapid development of mobile communications.
  • the entire mobile communication evolution from the 1st Generation mobile communication technology (1G) to 5G is based on cellular networks, that is, using macro cell splitting and vertical micro cells Network layered approach.
  • LPN low-power nodes
  • micro cells including micro cells, small cells, home base stations, and relay nodes
  • relay nodes in traditional cellular networks
  • cellular networks are becoming more heterogeneous
  • the trend of densification has resulted in serious inter-cell interference and frequent UE handovers during movement, which reduce system capacity and user experience.
  • a cell-free system is proposed.
  • APs Access Points
  • CPU Central Processing Unit
  • AP usually has only a few baseband functions, such as precoding, channel estimation, and radio frequency functions, while the CPU is responsible for scheduling, power control, and pilot allocation functions.
  • each UE has a cell centered on itself, and the cell also moves during the movement of the UE, thereby minimizing the impact of inter-cell interference and frequent handovers on the UE. Therefore, cell-free technology is a key technology to meet future 6G needs.
  • the UE can only work in cell-free mode after the RRC connection has been established. Before that, the UE needs to establish an RRC connection with a cell in the cellular system in the form of a cellular. Then switch the UE from the cellular system to the cell-free system.
  • the disadvantage of this method is that the cellular system and the cell-free system are systems designed based on two different design concepts. The former is based on the base station and the latter is based on the UE.
  • Related technologies put together two systems with different design concepts. When the UE accesses a cell-free system, it still faces serious inter-cell interference and frequent cell selection/cell reselection. This mechanism may even become The bottleneck of the overall performance of the cell-free system. Therefore, this application proposes a new method for accessing the cell-free system.
  • a cell access method is provided, and the method is applied to a first node.
  • the cell access method provided in an embodiment of the present application mainly includes steps S11, S12, and S13.
  • the first cell is a public cell
  • the network system may include one or more public cells
  • the second cell can be understood as an exclusive cell of a UE.
  • the first cell can be implemented by traditionally deployed cellular base stations, or can be implemented by distributed and densely deployed APs (also including a CPU responsible for managing these APs).
  • the dedicated cell is usually implemented by distributed and densely deployed APs, which can be controlled by traditional cellular base stations.
  • a dedicated central processing unit CPU can also be responsible. In the case where the central processing unit CPU is responsible for the AP, there is an interface for mutual communication between the CPU and the cellular base station.
  • the first application signal is sent in a first cell, or the first application signal is sent in a second cell.
  • the first application signal when the first application signal is sent in the first cell, the first application signal carries the measurement result information of the first cell synchronization signal or the location information of the UE.
  • the first application signal when the first application signal is sent in the second cell, the first application signal carries a sequence pre-configured by the network.
  • the receiving the first information includes: receiving a first response signal, where the first response signal is a response signal of the first application signal.
  • the step of the first node accessing the second cell based on the first information includes:
  • Receiving a second synchronization signal the second synchronization signal being used for downlink synchronization of the first node with the second cell; receiving second system information, the second system information carrying second resource indication information, the second resource indication The information is used to indicate the resources required to send the second application signal; the second application signal is sent, the second application signal is used for the uplink synchronization of the first node with the second cell; the second response signal is received, the second response signal It carries information that allows the first node to access.
  • the receiving the second synchronization signal includes:
  • the second synchronization signal is received at the frequency domain position of the second synchronization signal; wherein the frequency domain position of the second synchronization signal is determined by the frequency domain position information carried in the first information, or the frequency of the second synchronization signal
  • the domain position is determined by the frequency domain position of the first synchronization signal and the preset relationship.
  • the step of the first node accessing the second cell based on the first information includes:
  • PDCCH Physical Downlink Control Channel
  • the first physical downlink control channel PDCCH for receiving the first response signal includes:
  • the first physical downlink control channel PDCCH of the first response signal is received in the first cell.
  • the receiving the first response signal includes:
  • the first response signal is received in the first cell, or the first response signal is received in the second cell.
  • the first PDCCH is scrambled by using a first radio network temporary identity (Radio Network Tempory Identity, RNTI).
  • RNTI Radio Network Tempory Identity
  • the third application signal and the second PDCCH are scrambled using a second RNTI, where the first RNTI and the second RNTI are the same, or the first RNTI It is different from the second RNTI.
  • the first response signal carries two different first RNTI and second RNTI.
  • the first response signal carries the first RNTI; the second RNTI is determined by the first RNTI and the cell identity of the first cell, or the first response signal carries the second RNTI; An RNTI is determined by the second RNTI and the cell identity of the first cell.
  • a cell access method is provided, and the method is applied to a second node.
  • the cell access method provided in the embodiment of the present application mainly includes steps S21, S22, and S23.
  • the first synchronization signal and the first system information periodically sent in the first cell; wherein the first synchronization signal is used for the downlink synchronization of the first node with the first cell, and the first system information carries the first synchronization signal.
  • a resource indication information where the first resource indication information is used to indicate resources required for sending the first application signal.
  • the method further includes: sending a second synchronization signal, and the second synchronization signal is used for the first node and the second Cell downlink synchronization; sending second system information, the second system information carrying second resource indication information, the second resource indication information is used to indicate the resources required to send the second application signal; receiving the second application signal, The second application signal is used for uplink synchronization between the first node and the second cell; and a second response signal is sent, and the second response signal carries information allowing the first node to access.
  • sending the first information includes: sending the first physical downlink control of the first response signal Channel PDCCH; the method further includes: sending a first response signal, wherein the first response signal carries the cell identity and uplink authorization information of the first cell; receiving a third application signal, wherein the third application signal It carries the information required to apply for the second cell; the second PDCCH for sending the third response signal; the third response signal is the response signal of the third application signal; the third response signal is sent, where the third response signal It carries information that allows the first node to access.
  • a method for dual application signals to apply for access to a cell is provided.
  • the UE obtains the second cell through the following steps.
  • the UE receives synchronization signals of one or more first cells. Using the synchronization signal, the UE can achieve downlink synchronization with at least one first cell.
  • the UE receives the system information of the first cell for downlink synchronization, where the system information at least carries indication information of the first resource required to apply for the service of the second cell.
  • the UE determines the resource required to apply for the second cell according to the received system information of the first cell, and sends the first application signal on the resource.
  • the first application signal carries information related to the measurement result including the synchronization signal of the first cell.
  • the index of the strongest K first cell synchronization signals where the index of the synchronization signal is represented by the physical cell index PCI, and the strongest K first cell synchronization signals refer to the reference signal receiving power (Reference Signal Receiving Power, RSRP) or reference signal receiving quality (Reference Signal Receiving Quality, RSRQ) the strongest K synchronization signals.
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the method of carrying information related to the above measurement result may be an implicit method.
  • the network configures different sequences.
  • the method for carrying information related to the measurement results may also be a display method.
  • the network configures different physical uplink shared channels (PUSCH).
  • the network receives the first application signal (including the above-mentioned measurement information) sent by the UE, and can organize a suitable AP set according to the above-mentioned measurement information to form a second cell to serve the UE, where serving the UE includes sending a synchronization signal for the target UE, Response information, etc.
  • the UE receives a first response signal for the first application signal sent by the first cell.
  • the first response signal carries at least frequency domain location information of the second cell synchronization signal.
  • the first response signal may also include a sequence adopted by the second cell synchronization signal. This sequence is also unique to the UE.
  • the UE uses the frequency domain location information of the second cell synchronization signal not only to speed up the synchronization, but also to prevent the UE from synchronizing the second cell that it does not intend to serve itself.
  • the UE receives the synchronization signal sent by the second cell, and realizes synchronization with the second cell.
  • the UE receives system information related to the second cell sent by the second cell.
  • the system information includes at least second resource indication information for accessing the second cell.
  • the UE sends a second application signal on the resource determined in S36 to apply for the second cell.
  • the UE receives a second response signal sent by the second cell.
  • the second response signal indicates that the UE's application has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE can use the second cell for two-way communication with the network.
  • the network in order to cooperate with the UE in applying for a second cell, the network mainly includes:
  • the UE can achieve downlink synchronization with at least one first cell.
  • the system information carries at least indication information of the first resource required to apply for the service of the second cell, and the aforementioned resource required for the service of the second cell is within the bandwidth of the aforementioned first cell.
  • the first response signal carries frequency domain location information including at least the second cell synchronization signal.
  • the first response signal may also include one of the time offset between the second cell synchronization signal and the first cell synchronization signal, the bandwidth of the second cell, and control resource set configuration information (the set of resources used to send PDCCH), or one of the other information. Multiple.
  • the second signal response signal indicates that the UE's application has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE can use the second cell for two-way communication with the network.
  • the synchronization signal sent by the second cell occupies less resources than the synchronization signal sent by the first cell, or the length of the synchronization signal sequence sent by the second cell is shorter than the synchronization sequence sent by the first cell length.
  • the first cell is not only used for downlink synchronization, but also used to distinguish different first cells.
  • the synchronization signal of the first cell usually needs to use a relatively long sequence. It means that more resources need to be taken up.
  • the second cell is a UE-specific cell, and its synchronization signal is also dedicated to the UE, and its main purpose is downlink synchronization, which usually requires less resources to achieve this purpose.
  • the first application signal sent by the UE in S33 and the second application signal sent in S37 are not completely the same.
  • RSRP reference signal received power
  • K reference signal reception quality
  • the first cell can be implemented by a traditional base station or an AP that implements intensive deployment.
  • the base station or AP receives the first application signal (including the above measurement information) sent by the UE, and can request the CPU for proper organization based on the above measurement information.
  • the AP set of APs forms the second cell to serve the UE (including sending synchronization signals and response information for the target UE). This mechanism is more suitable for situations where the uplink and downlink frequencies are different and the channel reciprocity is not accurate enough. In S37, there is no such requirement, and the second application signal only needs to realize uplink synchronization and UE identification.
  • S37 and S38 can be divided into 4 steps. for example:
  • the UE sends an uplink synchronization application signal on the resource determined in S36 to apply for the second cell.
  • the application signal is also used for uplink synchronization.
  • the UE receives a response signal sent by the second cell, and the response information includes at least one uplink authorization information, which is used by the UE to send information such as a UE identity (Identifier, ID).
  • ID UE identity
  • the UE sends the UE ID and other information needed to apply for the second cell on the resource determined in the previous step.
  • the response signal indicates that the application of the UE has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE and the network can use the second cell for two-way communication.
  • the frequency domain position of the first application signal sent in S33 and the frequency domain position of the synchronization signal sent by the second cell have a preset one-to-one correspondence or a one-to-many relationship.
  • the frequency domain position of the aforementioned first application signal is X
  • the frequency domain position of the synchronization signal sent by the second cell is X+offset, where offset is a fixed value or one of multiple fixed values.
  • sending or receiving the response signal in S34 can also be omitted and S35 is directly executed.
  • a method for dual application signals to apply for access to a cell is provided. As shown in Figure 4,
  • the first cell sends a downlink synchronization signal to the UE.
  • the first cell sends a system message of the first cell to the UE.
  • the system information carries at least indication information of the first resource required to apply for the service of the second cell
  • the UE sends the first application signal of the second cell to the first cell.
  • the first cell sends a first response signal for the first application signal to the UE.
  • the UE receives the synchronization signal of the second cell sent by the second cell.
  • the UE receives the system message of the second cell sent by the second cell.
  • the second cell receives the second application signal sent by the UE.
  • the second cell sends a second response signal of the second request signal to the UE.
  • a method for dual application signals to apply for access to a cell is provided.
  • the UE obtains the second cell through the following steps:
  • the UE receives synchronization signals of one or more first cells.
  • the UE can achieve downlink synchronization with at least one first cell.
  • the UE receives the synchronized system information of the first cell.
  • the system information at least carries the indication information of the first resource required to apply for the service of the second cell (including information such as the frequency point and bandwidth of the first resource), and the conditions that need to be met to use the first resource.
  • the resources required for the aforementioned application for the second cell are within the bandwidth of the aforementioned second cell.
  • the UE determines the resource required to apply for the second cell according to the received system information, and sends the first application signal on the resource.
  • the first application signal is composed of a sequence pre-configured by the network.
  • the UE receives a first response signal for the first application signal sent by the second cell, where the first response signal carries at least frequency domain location information of the second cell synchronization signal.
  • the first response signal may also include a sequence adopted by the second cell synchronization signal. This sequence is also unique to the UE. The UE can use this information not only to speed up the synchronization, but also to prevent the UE from synchronizing a second cell that is not intended to serve itself.
  • the application signal sent by the UE is sent to the second cell, if the first cell sends a response, the network needs to know which first cell the application signal is allocated to. If this is not possible, the aforementioned application signal should be assumed There is a preset one-to-one correspondence or one-to-many relationship between the frequency domain position of the second cell and the frequency domain position of the synchronization signal sent by the second cell. For example, suppose that the frequency domain position of the aforementioned application signal is X, and the frequency domain position of the synchronization signal sent by the second cell is X+offset, where offset is a fixed value or one of multiple fixed values.
  • the value or value set of the offset can also be indicated in the aforementioned system information of the first cell. In this case, S54 can be omitted.
  • the UE receives the synchronization signal sent by the second cell, and realizes synchronization with the second cell.
  • the length of the synchronization signal sequence sent by the second cell or the occupied resources is less than the length of the synchronization signal sequence sent by the first cell.
  • the timing of the synchronization signal sent by the second cell there are two possible mechanisms: One possible mechanism is that the APs that make up the second cell send the synchronization signal according to the timing of receiving the application signal. Accordingly, the two parties can also agree to send the application signal and the synchronization signal. The other possible mechanism is that the APs that make up the second cell send synchronization signals according to their own clocks.
  • the former mechanism it is faster for UEs to detect synchronization signals, but a cell-free system is likely to need to serve multiple UEs at the same time, and different timings of multiple UEs may cause relatively large interference.
  • the latter mechanism can avoid the disadvantages of the aforementioned mechanism.
  • the disadvantage is that the UE needs to perform a sliding search for synchronization signals in time as in a cellular manner.
  • the UE receives system information related to the cell sent by the second cell, where the system information includes at least second resource indication information for accessing the second cell.
  • the UE sends a second application signal on the resource determined in S56 to apply for the second cell.
  • the UE receives second response information sent by the second cell.
  • the second response signal indicates that the UE's application has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE can use the second cell for two-way communication with the network.
  • the second application signal sent by the first application signal S56 sent by the UE in S53 is different.
  • the function of the first application signal is to let the network know the existence and application of the UE, and the network sends a synchronization signal for downlink synchronization with the second cell to the UE according to the received application signal.
  • the UE sends the application signal it has not yet achieved downlink synchronization with the second cell.
  • the receiving station of the second cell can directly detect the signal sent by the UE, and use the channel reciprocity to determine The precoding used for downlink signal transmission of the second cell, so the first application signal sent in this implementation does not need to carry the measurement result of the synchronization signal of the first cell, and can be implemented by a sequence pre-configured by the network.
  • the network will also configure some parameters related to the first application signal, such as the cyclic prefix length and the guard interval length.
  • the UE When sending the second application signal, the UE has already achieved downlink synchronization with the second cell, and the second application signal is used for uplink synchronization between the second cell and the UE.
  • the main tasks of the network include:
  • the synchronization signal of the first cell is periodically sent in the first cell.
  • the UE can achieve downlink synchronization with at least one first cell.
  • the system information at least carries indication information (including information such as the frequency point and bandwidth of the first resource) of the first resource required for applying for the second cell, and the conditions that need to be met to use the first resource.
  • indication information including information such as the frequency point and bandwidth of the first resource
  • the resources required for the aforementioned application for the second cell are within the bandwidth of the aforementioned second cell.
  • the first application signal sent by the UE in step 3 is different from the application signal sent here.
  • the second response signal of the second application signal in the second cell. If the second response signal indicates that the UE's application has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE can use the second cell for two-way communication with the network.
  • the second cell sends synchronization signals and other response signals only after receiving an application from the UE.
  • This aspect avoids the disadvantage of periodically sending synchronization signals/system information even if there is no UE in the traditional cellular system, that is, it saves power and reduces interference.
  • the network can generate a UE-specific UE-centric cell, thereby greatly improving the performance of the UE accessing the system.
  • the UE obtains the application resources for the second cell according to the first cell, but the two types of cells are not required to be synchronized, which also reduces the requirements for the application of the solution.
  • a method for dual application signals to apply for access to a cell is provided. As shown in Figure 6,
  • the first cell sends a downlink synchronization signal to the UE.
  • the first cell sends a system message of the first cell to the UE.
  • the system information at least carries the indication information of the first resource required to apply for the service of the second cell.
  • the UE sends the first application signal of the second cell to the second cell.
  • the first cell sends a first response signal for the first application signal to the UE.
  • the UE receives the synchronization signal of the second cell sent by the second cell.
  • the UE receives the system message of the second cell sent by the second cell.
  • the second cell receives the second application signal sent by the UE.
  • the second cell sends a second response signal of the second request signal to the UE.
  • a method for single application signal for network access is provided.
  • the UE obtains the second cell through the following steps:
  • the UE receives synchronization signals of one or more first cells.
  • the UE can achieve downlink synchronization with at least one first cell.
  • the UE receives the synchronized system information of the first cell.
  • the system information carries at least indication information of resources required to apply for the service of the second cell, frequency and bandwidth information of the second cell, and control resource set configuration information (a resource set used to send PDCCH).
  • the resources required for the aforementioned application for the second cell are within the bandwidth of the aforementioned second cell.
  • the UE determines the resource required to apply for the second cell according to the received system information of the first cell, and sends the first application signal on the resource.
  • the first application signal is composed of a sequence pre-configured by the network.
  • the first application signal can be used for uplink synchronization between the second cell and the UE, and can also be used to determine the set of APs serving the UE.
  • the UE receives the first response signal for the first application signal sent by the second cell
  • the first response signal includes at least the cell identity of the first cell indicating the aforementioned first application signal, an uplink authorization information, and so on.
  • the UE sends information required for applying for the second cell, such as the UE ID, on the resource determined in the previous step.
  • S76 Receive a second response signal sent by the second cell. If the response signal indicates that the application of the UE has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE and the network can use the second cell for two-way communication.
  • the main tasks of the network include:
  • the synchronization signal of the first cell is periodically sent in the first cell.
  • the UE can achieve downlink synchronization with at least one first cell.
  • the system information at least carries indication information for applying for resources required by the second cell, frequency and bandwidth information of the second cell, and control resource set configuration information (a resource set for sending PDCCH).
  • the resources required for the aforementioned application for the second cell are within the bandwidth of the aforementioned second cell.
  • the response signal includes at least the identity of the first cell to which the aforementioned application signal belongs, and uplink authorization information.
  • the information includes at least UE ID-related information.
  • step 6 Send the response information of step 5 to the UE. If the UE's application is accepted, the response information includes at least the UE ID information received in step 5.
  • the UE has fewer steps to access the second cell, and does not need to apply to the second cell to send a downlink synchronization signal, which also means that it can access the second cell faster.
  • the execution condition of this embodiment is that the UE can use the downlink timing of the first cell to receive the signal of the second cell. Furthermore, after the UE accesses the second cell, the network can send the UE ID as needed.
  • the response signal sent by the network to the UE carries a first cell identity.
  • the response signal sent by the network to the UE carries this information.
  • the conflict resolution can also be achieved earlier, while in the traditional 4-step access method of the cellular system, the conflict resolution is achieved in the last step.
  • the UE initiates an access application to the second cell through the system information of the first cell.
  • the cell the UE accesses and the cell corresponding to the system message are both The same community.
  • the first cell is a traditional cell
  • the second cell is a de-cellular cell where APs are densely deployed, and the UE can access the second cell to obtain a better user experience.
  • a method for single application signal for network access is provided.
  • the first application signal is sent in the first cell, and the downlink control information (Downlink Control Information, DCI) that schedules the second cell to send the response signal uses a specific random access (Random Access, RA)-RNTI. Scrambled.
  • DCI Downlink Control Information
  • the UE obtains the second cell through the following steps:
  • the UE receives synchronization signals of one or more first cells.
  • the UE can achieve downlink synchronization with at least one first cell.
  • the UE receives the synchronized system information of the first cell.
  • the system information at least carries indication information for applying for resources required by the second cell, frequency and bandwidth information of the second cell, and control resource set configuration information (a resource set for sending PDCCH).
  • the resources required for the aforementioned application for the second cell are within the bandwidth of the aforementioned first cell.
  • the UE determines the resource required to apply for the second cell according to the received system information, and sends the first application signal on the resource.
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • the UE receives the first response signal sent by the second cell.
  • the DCI for scheduling the first response signal is also sent by the second cell and is scrambled by a specific RA-RNTI, and the RNTI is related to the identity of the first cell where the first application signal is located.
  • the RNTI consists of the index s of the first symbol of the request symbol in a slot (set the range from 0 to S-1), and the index t of the slot in a radio frame (set the range from 0 to T).
  • the frequency domain index f where the first application signal is located for example, the range is 0 ⁇ F-1
  • the carrier index value c where the first application signal is located for example, 0 ⁇ C-1
  • the first application signal is located The cell index value (for example, the range is 0 to P-1) is determined, where S, T, F, C, and P are all positive integers. Then the value of the RA-RNTI is as follows:
  • RA-RNTI 1+s+S*t+S*T*f+S*T*F*c+S*T*F*C*p
  • the first response signal also carries an uplink authorization information.
  • the UE sends information required for applying for the second cell, such as the UE ID, on the resource indicated by the uplink authorization in the previous step.
  • the response information includes at least the UE ID information sent by S85. If the UE obtains this information, it means that the application for the second cell has been confirmed by the network. The UE can use the second cell for two-way communication with the network.
  • the main tasks of the network include:
  • the synchronization signal of the first cell is periodically sent in the first cell.
  • the UE can achieve downlink synchronization with at least one first cell.
  • the system information at least carries indication information for applying for resources required by the second cell, frequency and bandwidth information of the second cell, and control resource set configuration information (a resource set for sending PDCCH).
  • the resources required for the aforementioned application for the second cell are within the bandwidth of the aforementioned first cell.
  • the application signal for applying for the second cell sent by the UE.
  • the DCI that schedules the response signal is scrambled by a specific RA-RNTI, and the RNTI is related to the identity of the first cell where the aforementioned application signal is located.
  • the RNTI consists of the index s of the first symbol of the request symbol in a slot (set the range from 0 to S-1), and the index t of the slot in a radio frame (set the range from 0 to T).
  • the value of the RA-RNTI is as follows:
  • RA-RNTI 1+s+S*t+S*T*f+S*T*F*c+S*T*F*C*p
  • the response signal also carries an uplink authorization information.
  • the information includes at least UE ID-related information.
  • step 6 Send the response information of step 5 to the UE. If the UE's application is accepted, the response information includes at least the UE ID information received in step 5.
  • a method for single application signal for network access is provided.
  • the first application signal needs to carry multiple first cell measurement results
  • the response signal of the second cell carries the first cell identity
  • the first cell identity is not considered when the DCI of the scheduling response signal is scrambled.
  • the UE obtains the second cell through the following steps:
  • the UE receives synchronization signals of one or more first cells. Using the synchronization signal, the UE can achieve downlink synchronization with at least one first cell.
  • the UE receives the synchronized system information of the first cell, and the system information carries at least indication information of resources required to apply for the service of the second cell.
  • the UE determines the resource required to apply for the second cell according to the received system information, and sends an application signal on the resource.
  • the application signal carries information related to the measurement result of the synchronization signal of the first cell, such as the reference signal received power (RSRP) of the synchronization signal or the reference signal received quality (RSRQ) of the synchronization signal.
  • RSRP reference signal received power
  • RSSQ reference signal received quality
  • the application signal can be used for uplink synchronization between the second cell and the UE, and can also be used to determine the set of APs serving the UE.
  • the application signal carries the location information of the UE.
  • the application signal can be used for uplink synchronization between the second cell and the UE, and can also be used to determine the set of APs serving the UE.
  • the UE receives the response signal sent by the second cell. If the UE application is accepted, the response signal includes at least the identity of the first cell to which the application signal belongs, and uplink authorization information. Different from the previous embodiment, the RA-RNTI used for scheduling the DCI of the response signal has nothing to do with the first cell identity.
  • the UE sends the UE ID and other information needed to apply for the second cell on the resource determined in the previous step.
  • the main tasks of the network include:
  • the synchronization signal of the first cell is periodically sent in the first cell.
  • the UE can achieve downlink synchronization with at least one first cell.
  • the system information Periodically send the system information of the first cell in the first cell.
  • the system information at least carries indication information of resources required to apply for the service of the second cell.
  • the response signal includes at least the identity of the first cell to which the aforementioned application signal belongs, and uplink authorization information.
  • the information includes at least UE ID-related information.
  • step 6 Send the response information of step 5 to the UE. If the UE's application is accepted, the response information includes at least the UE ID information received in step 5.
  • a method for single application signal for network access is provided.
  • the first application signal is sent in the second cell, and the DCI for scheduling the response signal of the second cell is scrambled by an RA-RNTI related to the first cell identity.
  • the UE obtains the second cell through the following steps:
  • the UE receives synchronization signals of one or more first cells. Using the synchronization signal, the UE can achieve downlink synchronization with at least one first cell.
  • the UE receives the synchronized system information of the first cell.
  • the system information carries at least the indication information of the resources required to apply for the service of the second cell, the frequency and bandwidth information of the second cell, and the control resource set configuration information (used to send PDCCH Collection of resources).
  • the resources required for the aforementioned application for the second cell are within the bandwidth of the aforementioned second cell.
  • the UE determines the resource required to apply for the second cell according to the received system information, and sends an application signal on the resource.
  • the application signal consists of a sequence pre-configured by the network.
  • the application signal can be used for uplink synchronization between the second cell and the UE, and can also be used to determine the set of APs serving the UE.
  • the UE receives the response signal sent by the second cell, and the DCI for scheduling the response signal is scrambled by a specific RA-RNTI, and the RNTI is related to the identity of the first cell where the aforementioned signal is applied.
  • the RNTI consists of the index s of the first symbol of the request symbol in a slot (set the range from 0 to S-1), and the index t of the slot in a radio frame (set the range from 0 to T).
  • the value of the RA-RNTI is as follows:
  • RA-RNTI 1+s+S*t+S*T*f+S*T*F*c+S*T*F*C*p
  • the response signal also carries an uplink authorization information.
  • the UE sends the UE ID and other information needed to apply for the second cell on the resource determined in the previous step.
  • a method for single application signal for network access is provided.
  • the first application signal is sent in the second cell, and the response signal sent by the second cell should carry the identity of the first cell to which the application signal belongs.
  • the UE obtains the second cell through the following steps:
  • the UE receives synchronization signals of one or more first cells.
  • the UE can achieve downlink synchronization with at least one first cell.
  • the UE receives the synchronized system information of the first cell.
  • the system information carries at least the indication information of the resources required to apply for the service of the second cell, the frequency and bandwidth information of the second cell, and the control resource set configuration information (resources used to send PDCCH). gather).
  • the resources required for the aforementioned application for the second cell are within the bandwidth of the aforementioned second cell.
  • the synchronization signal and system information received by the UE are represented by Msg0 in Fig. 9, and the same applies below.
  • the UE determines the resource required to apply for the second cell according to the received system information, and sends an application signal on the resource (represented by Msg1 in FIG. 9, the same below).
  • the application signal consists of a sequence pre-configured by the network.
  • the application signal can be used for uplink synchronization between the second cell and the UE, and can also be used to determine the set of APs serving the UE.
  • the UE receives the PDCCH indicating the response signal of the aforementioned Msg1 (represented by Msg2 in FIG. 9, the same below) sent by the second cell.
  • the UE receives the Msg2 sent by the second cell according to the received PDCCH.
  • the UE receives the response signal sent by the second cell, and if the UE's application is accepted, the response signal at least includes the cell identity of the first cell indicating the aforementioned application signal, an uplink authorization information, and so on.
  • the UE sends the UE ID and other information required to apply for the second cell on the resource determined in the previous step (represented by Msg3 in FIG. 9, the same below).
  • the UE receives the PDCCH indicating the response signal of the aforementioned Msg3 (represented by Msg4 in FIG. 9, the same below).
  • the UE receives Msg4 according to the received PDCCH. If the response signal indicates that the application of the UE has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE and the network can use the second cell for two-way communication.
  • the network needs to respond to multiple UEs with one or more Msg2s. These UEs may correspond to different first cells (different PCIs). Accordingly, the network should notify the UE in Msg2 which cell the Msg2 is for UE, that is, Msg2 carries PCI (Physical cell Identifier) information or partial PCI information corresponding to the UE.
  • PCI Physical cell Identifier
  • Manner 1 Clearly carry PCI information in Msg2. For example, there are 1008 PCIs in New Radio (NR), which means that the PCI information can be indicated by 10 bits. In addition, some bits corresponding to PCI can also be carried, such as K bits representing the least significant bit of PCI (K is an integer, and 0 ⁇ K ⁇ 10).
  • RA-RNTI scrambling code
  • RNTI consists of the index s of the first symbol of Msg1 in a time slot (set the range from 0 to S-1), the index t of the time slot in a radio frame (set the range from 0 to T-1),
  • the frequency domain index f of Msg1 for example, the range is 0 ⁇ F-1
  • the carrier index value c of Msg1 for example, 0 ⁇ C-1
  • the index value of the cell where the signal is applied for for example, the range is 0 ⁇ P-1) Determine, where S, T, F, C, and P are all positive integers.
  • the value of the RA-RNTI is as follows:
  • RA-RNTI 1+s+S*t+S*T*f+S*T*F*c+S*T*F*C*p
  • Manner 3 The PDCCH indicating Msg2 is sent by the first cell, and Msg2 itself has two possibilities: Msg2 is sent in the first cell or sent in the second cell. As shown in Figure 10, the second cell is obtained through the following steps:
  • the UE receives synchronization signals of one or more first cells.
  • the UE receives the first system information of the synchronized first cell.
  • the UE determines the resource required to apply for the second cell according to the received system information, and sends the first application signal on the resource.
  • the UE receives the PDCCH of the first cell indicating the aforementioned response signal of Msg1.
  • the UE receives the Msg2 sent by the first cell according to the received PDCCH.
  • the UE receives the response signal sent by the first cell, and if the UE's application is accepted, the response signal at least includes the cell identity of the first cell indicating the aforementioned application signal, an uplink authorization information, and so on.
  • the UE sends information required for applying for the second cell, such as the UE ID, on the resource determined in the previous step.
  • the UE receives the PDCCH indicating the response signal of the aforementioned Msg3.
  • the UE receives Msg4 according to the received PDCCH. If the response signal indicates that the application of the UE has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE and the network can use the second cell for two-way communication.
  • the second cell is obtained through the following steps:
  • the UE receives synchronization signals of one or more first cells.
  • the UE receives the first system information of the synchronized first cell.
  • the UE determines the resource required to apply for the second cell according to the received system information, and sends the first application signal on the resource.
  • the UE receives the PDCCH of the second cell that indicates the aforementioned response signal of Msg1.
  • the UE receives the Msg2 sent by the second cell according to the received PDCCH.
  • the UE receives the response signal sent by the second cell, and if the UE's application is accepted, the response signal at least includes the cell identity of the first cell indicating the aforementioned application signal, an uplink authorization information, and so on.
  • S115 The UE sends the information needed to apply for the second cell, such as the UE ID, on the resource determined in the previous step (represented by Msg3 in FIG. 11, the same below).
  • the UE receives the PDCCH indicating the response signal of the aforementioned Msg3 (represented by Msg4 in FIG. 11, the same below).
  • the UE receives Msg4 according to the received PDCCH. If the response signal indicates that the application of the UE has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE and the network can use the second cell for two-way communication.
  • the main tasks of the network include:
  • the synchronization signal of the first cell is periodically sent in the first cell.
  • the UE can achieve downlink synchronization with at least one first cell.
  • the system information of the first cell is periodically sent in the first cell.
  • the system information at least carries indication information for applying for resources required by the second cell, frequency and bandwidth information of the second cell, and control resource set configuration information (a resource set for sending PDCCH).
  • the resources required for the aforementioned application for the second cell are within the bandwidth of the aforementioned second cell.
  • the receiving UE sends Msg1.
  • the UE in this embodiment has fewer steps to access the second cell, and does not need to apply to the second cell to send a downlink synchronization signal, which also means that it can access the second cell faster.
  • the execution condition of this embodiment is that the UE can use the downlink timing of the first cell to receive the signal of the second cell.
  • the network can send the UE ID as needed.
  • this embodiment can also be applied to the foregoing embodiment. For example, steps 2 to 7 in this embodiment can replace the corresponding steps in the foregoing embodiment.
  • the response signal sent by the network to the UE carries a first cell identity.
  • the response signal sent by the network to the UE carries this information.
  • the conflict resolution can also be achieved earlier, while in the traditional 4-step access method of the cellular system, the conflict resolution is achieved in the last step.
  • the UE initiates an access application to the second cell through the system information of the first cell.
  • the cell the UE accesses and the cell corresponding to the system message are both The same community.
  • the first cell is a traditional cell
  • the second cell is a de-cellular cell where APs are densely deployed, and the UE accesses the second cell to obtain a better user experience.
  • the second cell is obtained through the following steps:
  • the UE receives synchronization signals of one or more first cells.
  • the UE receives the first system information of the synchronized first cell.
  • the UE determines the resource required to apply for the second cell according to the received system information, and sends the first application signal on the resource.
  • the UE receives the PDCCH of the first cell indicating the aforementioned response signal of Msg1.
  • the UE receives the Msg2 sent by the first cell according to the received PDCCH.
  • the UE receives the response signal sent by the first cell, and if the UE's application is accepted, the response signal at least includes the cell identity of the first cell indicating the aforementioned application signal, an uplink authorization information, and so on.
  • the UE sends the UE ID and other information required to apply for the second cell to the first cell on the resource determined in the previous step.
  • the UE receives the PDCCH indicating the response signal of the foregoing Msg3 sent by the second cell.
  • the UE receives the Msg4 sent by the second cell according to the received PDCCH. If the response signal indicates that the application of the UE has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE and the network can use the second cell for two-way communication.
  • the Temporary Cell (TC)-RNTI used for Msg3 scrambling and the PDCCH scrambling used for Msg4 is the same, and this RNTI is indicated in Msg2.
  • the TC-RNTI used for Msg3 scrambling and the PDCCH scrambling used for Msg4 are different, and there are the following mechanisms:
  • Msg2 provides two TC-RNTIs, one is used for Msg3 scrambling, and the other is used to indicate Msg4 PDCCH scrambling.
  • Msg2 still provides only one TC-RNTI as in the above embodiment.
  • the RNTI is used for Msg3 scrambling.
  • the second cell/target UE determines the PDCCH scrambling to indicate Msg4 based on the TC-RNTI and the PCI of the first cell. RNTI.
  • Mechanism 3 Msg2 still only provides one TC-RNTI as in the foregoing embodiment, and the RNTI is used to indicate PDCCH scrambling of Msg4.
  • the first cell/target UE determines the TC-RNTI for Msg3 according to the TC-RNTI and the PCI of the first cell.
  • the process by which the UE obtains the second cell is shown in FIG. 13.
  • the UE receives synchronization signals of one or more first cells.
  • the UE receives the first system information of the synchronized first cell.
  • the UE determines the resource required to apply for the second cell according to the received system information, and sends the first application signal on the resource.
  • the UE receives the PDCCH of the first cell indicating the aforementioned response signal of Msg1.
  • the UE receives the Msg2 sent by the first cell according to the received PDCCH.
  • the UE receives the response signal sent by the first cell, and if the UE application is accepted, the response signal at least includes the cell identity of the first cell indicating the aforementioned application signal, an uplink authorization information, and so on.
  • the UE sends the UE ID and other information required for applying for the second cell to the second cell on the resource determined in the previous step.
  • the UE receives the PDCCH that indicates the aforementioned Msg3 response signal sent by the second cell.
  • the UE receives the Msg4 sent by the second cell according to the received PDCCH. If the response signal indicates that the application of the UE has been accepted, it means that the wireless connection between the UE and the second cell has been established, and the UE and the network can use the second cell for two-way communication.
  • the main feature of this embodiment is that: Msg3, PDCCH indicating Msg4, and Msg4 are all sent between the UE and the second cell.
  • the signal before Msg3 is sent between the UE and the first cell.
  • Msg3, PDCCH indicating Msg4, and Msg4 can use the same TC-RNTI for scrambling and will not cause conflicts. In this way, each medium access control random access response (Medium Access Control Random Access Response) in Msg2 can be used.
  • MAC RAR only needs to carry one TC-RNTI.
  • Msg2 can include multiple MAC RARs.
  • Msg2 and the PDCCH indicating Msg2 are more like a multicast signal. From the perspective of efficiency, they are more suitable for cellular transmission. This is because if they are sent by the second cell in a UE-specific manner, considering the overhead of cyclic redundancy check (CRC), it may consume more resources.
  • CRC cyclic redundancy check
  • a cell access device is provided, and the device is applied to a first node.
  • the cell access method provided in the embodiment of the present application mainly includes:
  • the first receiving module 141 is configured to receive the first synchronization signal and the first system information sent by the second node in the first cell, where the first synchronization signal is used for downlink synchronization between the first node and the first cell,
  • the first system information carries first resource indication information, and the first resource indication information is used to indicate resources required to send the first application signal;
  • the first sending module 142 is configured to send the first application signal, where , The first application signal is used to request the second node to send the first information;
  • the second receiving module 143 is configured to receive the first information, where the first information is used to instruct the first node based on the first information Information access to the second cell.
  • the first application signal is sent in a first cell, or the first application signal is sent in a second cell.
  • the first application signal when the first application signal is sent in the first cell, the first application signal carries the measurement result information of the first cell synchronization signal or the location information of the UE.
  • the first application signal when the first application signal is sent in the second cell, the first application signal carries a sequence pre-configured by the network.
  • the receiving the first information includes: receiving a first response signal, where the first response signal is a response signal of the first application signal.
  • the step of the first node accessing the second cell based on the first information includes: receiving a second synchronization signal, the second synchronization signal being used for downlink between the first node and the second cell Synchronization; receiving second system information, the second system information carrying second resource indication information, the second resource indication information is used to indicate the resources required to send the second application signal; sending the second application signal, the The second application signal is used for the uplink synchronization of the first node with the second cell; and the second response signal is received, and the second response signal carries information allowing the first node to access.
  • the receiving the second synchronization signal includes: receiving the second synchronization signal at a frequency domain position of the second synchronization signal; wherein the frequency domain position of the second synchronization signal is determined by the first information
  • the frequency-domain position information carried in the file is determined, or the frequency-domain position of the second synchronization signal is determined by the frequency-domain position of the first synchronization signal and a preset relationship.
  • the step of the first node accessing the second cell based on the first information includes: receiving the first physical downlink control channel PDCCH of the first response signal; receiving the first physical downlink control channel PDCCH based on the first PDCCH A response signal, wherein the first response signal carries the cell identity of the first cell and uplink authorization information; a third application signal is sent on the resource determined by the uplink authorization information, wherein the third application signal Carry the information required to apply for the second cell; receive the second PDCCH of the third response signal; the third response signal is the response signal of the third application signal; receive the third response signal based on the second PDCCH, where The third response signal carries information allowing the first node to access.
  • the first physical downlink control channel PDCCH for receiving the first response signal includes: the first physical downlink control channel PDCCH for receiving the first response signal in the first cell.
  • the receiving the first response signal includes: receiving the first response signal in the first cell, or receiving the first response signal in the second cell.
  • the first PDCCH is scrambled by using the first wireless network temporary identifier RNTI.
  • the third application signal and the second PDCCH are scrambled using a second RNTI, where the first RNTI and the second RNTI are the same, or the first RNTI It is different from the second RNTI.
  • the first response signal carries two different first RNTI and second RNTI.
  • the first response signal carries the first RNTI; the second RNTI is determined by the first RNTI and the cell identity of the first cell, or the first response signal carries the second RNTI; An RNTI is determined by the second RNTI and the cell identity of the first cell.
  • a cell access device is provided, and the device is applied to a second node.
  • the cell access method provided in the embodiment of the present application mainly includes:
  • the second sending module 151 is configured to periodically send the first synchronization signal and first system information in the first cell; wherein, the first synchronization signal is used for downlink synchronization of the first node with the first cell, and The first system information carries first resource indication information, and the first resource indication information is used to indicate resources required to send the first application signal; the third receiving module 152 is configured to receive the first application signal; wherein The first application signal is used to request the second node to send the first information; the third sending module 153 is configured to send the first information, where the first information is used to instruct the first node to send the first information based on the first information. Information access to the second cell.
  • the method when the first information is a first response signal, the method includes: sending a second synchronization signal, where the second synchronization signal is used for downlink synchronization between the first node and the second cell; Sending second system information, the second system information carrying second resource indication information, the second resource indication information is used to indicate the resources required to send the second application signal; receiving the second application signal, the second The application signal is used for the uplink synchronization of the first node with the second cell; and the second response signal is sent, and the second response signal carries information allowing the first node to access.
  • the method includes: sending the first physical downlink control channel PDCCH of the first response signal; sending the first response signal; A response signal, wherein the first response signal carries the cell identity and uplink authorization information of the first cell; receiving a third application signal, wherein the third application signal carries information required to apply for the second cell; Send the second PDCCH of the third response signal; the third response signal is the response signal of the third application signal; send the third response signal, wherein the third response signal carries the information allowing the first node to access.
  • the cell access device provided in this embodiment can execute the cell access method provided in any embodiment of this application, and has the corresponding functional modules and effects for executing the method.
  • the cell access method provided in any embodiment of this application can execute the cell access method provided in any embodiment of this application, and has the corresponding functional modules and effects for executing the method.
  • the various units and modules included are only divided according to the functional logic, but are not limited to the above division, as long as the corresponding function can be realized; in addition, the name of each functional unit It is only for the convenience of distinguishing each other, and is not used to limit the protection scope of this application.
  • FIG. 16 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • the device includes a processor 161, a memory 162, an input device 163, an output device 164, and Communication device 165; the number of processors 161 in the device can be one or more.
  • one processor 161 is taken as an example; the processor 161, memory 162, input device 163 and output device 164 in the device can be connected via a bus or Connect in other ways.
  • the bus connection is used as an example.
  • the memory 162 can be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the cell access method in the embodiment of the present application (for example, the cell access device in the cell access device).
  • Another example is the program instructions/modules corresponding to the cell access method in the embodiment of the present application (for example, the second sending module 151, the third receiving module 152, and the third sending module 153 in the cell access device).
  • the processor 161 executes various functional applications and data processing of the device by running software programs, instructions, and modules stored in the memory 162, that is, implements any cell access method provided in the embodiments of the present application.
  • the memory 162 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the device, and the like.
  • the memory 162 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
  • the memory 162 may include a memory remotely provided with respect to the processor 161, and these remote memories may be connected to the device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • the input device 163 can be used to receive inputted number or character information, and generate key signal input related to user settings and function control of the device.
  • the output device 164 may include a display device such as a display screen.
  • the communication device 165 may include a receiver and a transmitter.
  • the communication device 165 is configured to perform information transceiving and communication under the control of the processor 161.
  • the processor 161 executes various functional applications and data processing by running programs stored in the system memory 162, for example, to implement the cell elimination access method provided in the embodiment of the present application,
  • the method includes:
  • the first synchronization signal is used for downlink synchronization between the first node and the first cell, and the first system information carries the first synchronization signal
  • One resource indication information where the first resource indication information includes at least resources required to indicate sending a first application signal; sending a first application signal, where the first application signal is used to request a second node to send the first information; Receiving first information, where the first information is used to instruct the first node to access the second cell based on the first information.
  • the processor 161 may also implement the technical solution of the cell access method provided in any embodiment of the present application.
  • the hardware structure and function of the device please refer to the content explanation of this embodiment.
  • the processor 161 executes various functional applications and data processing by running programs stored in the system memory 162, such as implementing the cell access method provided in the embodiment of the present application.
  • Methods include:
  • the first synchronization signal and first system information periodically sent in the first cell; wherein the first synchronization signal is used for downlink synchronization of the first node with the first cell, and the first system information carries the first resource Indication information, the first resource indication information is used to indicate resources required to send the first application signal; receiving the first application signal; wherein the first application signal is used to request the second node to send the first information; Send first information, where the first information is used to instruct the first node to access the second cell based on the first information.
  • the processor 610 may also implement the technical solution of the message interaction method provided by any embodiment of the present application.
  • the hardware structure and function of the device please refer to the content explanation of this embodiment.
  • an embodiment of the present application further provides a storage medium containing computer-executable instructions, which are used to execute a cell access method when executed by a computer processor, so The above method is applied to the first node and includes:
  • a first synchronization signal and first system information sent by a second node in a first cell where the first synchronization signal is used for downlink synchronization between the first node and the first cell, and the first system information carries the first synchronization signal
  • One resource indication information where the first resource indication information includes at least resources required to indicate sending a first application signal; sending a first application signal, where the first application signal is used to request a second node to send the first information; Receiving first information, where the first information is used to instruct the first node to access the second cell based on the first information.
  • An embodiment of the application provides a storage medium containing computer-executable instructions.
  • the computer-executable instructions are not limited to the method operations described above, and can also execute the related cell access methods provided in any embodiment of the application. operate.
  • the embodiment of the present application also provides a storage medium containing computer-executable instructions, when the computer-executable instructions are executed by a computer processor, are used to execute a cell access method, and the method is applied to a second node and includes :
  • the first synchronization signal and first system information periodically sent in the first cell; wherein the first synchronization signal is used for downlink synchronization of the first node with the first cell, and the first system information carries the first resource Indication information, the first resource indication information is used to indicate resources required to send the first application signal; receiving the first application signal; wherein the first application signal is used to request the second node to send the first information; Send first information, where the first information is used to instruct the first node to access the second cell based on the first information.
  • An embodiment of the application provides a storage medium containing computer-executable instructions.
  • the computer-executable instructions are not limited to the method operations described above, and can also execute the related cell access methods provided in any embodiment of the application. operate.
  • this application can be implemented by software and necessary general-purpose hardware, or can be implemented by hardware.
  • the technical solution of this application can essentially be embodied in the form of a software product.
  • the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, a read-only memory (Read-Only Memory, ROM), and random access Memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or optical disk, etc., including multiple instructions to make a computer device (which can be a personal computer, server, or network device, etc.) The method described.
  • the term user terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicular mobile stations.
  • the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device, although the application is not limited thereto.
  • the embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware.
  • Computer program instructions can be assembly instructions, instruction set architecture (Instruction Set Architecture, ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages Source code or object code.
  • the block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
  • the computer program can be stored on the memory.
  • the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical storage devices and systems (digital multi-function optical discs) (Digital Video Disc, DVD) or Compact Disk (CD)), etc.
  • Computer-readable media may include non-transitory storage media.
  • the data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field-Programmable Gate Array, FPGA), and processors based on multi-core processor architecture.
  • DSP Digital Signal Processing
  • ASICs application specific integrated circuits
  • FPGA Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array

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Abstract

本文公开一种小区接入方法、装置、设备和存储介质。所述小区接入方法应用于第一节点，包括：接收第二节点在第一小区内发送的第一同步信号，其中，所述第一同步信号用于所述第一节点与所述第一小区下行同步；在所述第一节点与所述第一小区下行同步后，接收所述第二节点在所述第一小区内发送的第一系统信息，其中，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息至少包含指示发送第一申请信号所需的资源；在所述发送第一申请信号所需的资源上发送所述第一申请信号，其中，所述第一申请信号用于请求所述第二节点发送第一信息；接收所述第一信息，其中，所述第一信息用于指示所述第一节点基于所述第一信息接入第二小区。

Description

小区接入方法、装置、设备和存储介质 技术领域
本申请涉及无线通信技术领域，例如涉及一种小区接入方法、装置、设备和存储介质。
背景技术
在去蜂窝(cell-free)系统中，每个用户设备(User Equipment，UE)都有一个以自己为中心的小区，UE在移动过程中该小区也随之移动，从而最大程度的降低了小区间干扰、频繁切换等对UE的影响。在cell-free技术中，UE需要按照蜂窝的形式先与蜂窝系统中的一个小区建立无线资源控制(Radio Resource Control，RRC)连接，然后再把UE从蜂窝系统切换到cell-free系统。
上述方法导致UE接入cell-free系统时，仍然面临严重的小区间干扰、需要频繁的进行小区选择/小区重选等问题。
发明内容
本申请提供一种小区接入方法、装置、设备和存储介质，以降低蜂窝系统对应小区的影响。
本申请实施例提供一种小区接入方法，所述方法应用于第一节点，包括：
接收第二节点在第一小区内发送的第一同步信号和第一系统信息，其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息至少包含指示发送第一申请信号所需的资源；发送第一申请信号，其中，所述第一申请信号用于请求第二节点发送第一信息；接收第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
本申请实施例还提供一种小区接入方法，所述方法应用于第二节点，包括：
在第一小区内周期性发送的第一同步信号和第一系统信息；其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；接收所述第一申请信号；其中，所述第一申请信号用于请求第二节点发送第一信息；发送第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
本申请实施例还提供一种小区接入装置，所述装置配置于第一节点，包括：
第一接收模块，被配置为接收第二节点在第一小区内发送的第一同步信号和第一系统信息，其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；第一发送模块，被配置为发送第一申请信号，其中，所述第一申请信号用于请求第二节点发送第一信息；第二接收模块，被配置为接收第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
本申请实施例还提供一种小区接入装置，所述装置配置于第二节点，包括：
第二发送模块，被配置为在第一小区内周期性发送的第一同步信号和第一系统信息；其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；第三接收模块，被配置为接收所述第一申请信号；其中，所述第一申请信号用于请求第二节点发送第一信息；第三发送模块，被配置为发送第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
本申请实施例还提供一种设备，包括：
一个或多个处理器；存储器，用于存储一个或多个程序；当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如本申请实施例提供的小区接入方法。
本申请实施例还提供一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现他、如本申请实施例提供的小区接入方法。
附图说明
图1是本申请实施例提供的一种小区接入方法的流程图；
图2是本申请实施例提供的一种小区接入方法的流程图；
图3是本申请实施例提供的一种双申请信号申请接入小区方法的流程图；
图4是本申请实施例提供的一种双申请信号申请接入小区交互方法的流程图；
图5是本申请实施例提供的另一种双申请信号申请接入小区方法的流程图；
图6是本申请实施例提供的另一种双申请信号申请接入小区交互方法的流程图；
图7是本申请实施例提供的一种单申请信号申请接入小区方法的流程图；
图8是本申请实施例提供的另一种单申请信号申请接入小区方法的流程图；
图9是本申请实施例提供的另一种单申请信号申请接入小区方法的流程图；
图10是本申请实施例提供的另一种单申请信号申请接入小区方法的流程图；
图11是本申请实施例提供的另一种单申请信号申请接入小区方法的流程图；
图12是本申请实施例提供的另一种单申请信号申请接入小区方法的流程图；
图13是本申请实施例提供的另一种单申请信号申请接入小区方法的流程图；
图14是本申请实施例提供的一种小区接入装置的结构示意图；
图15是本申请实施例提供的一种小区接入装置的结构示意图；
图16是本申请实施例提供的一种设备的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行说明。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且，虽然在流程图中示出了逻辑顺序，但是在一些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
蜂窝网络架构通过频率复用和小区分裂技术，提高频谱资源的利用率和系统容量，支撑移动通信快速发展。为了满足持续增加的流量需求，从第一代移动通信技术(the 1st Generation mobile communication technology，1G)到5G整个移动通信的演进都是以蜂窝网为基础，即采用宏蜂窝小区分裂和纵向微蜂窝网络分层的方式。
小区分裂是最为有效的提高无线系统容量的方式。但是，随着各种微小区、小小区、家庭基站以及中继节点在内的各种低功率节点(Low Power Node，LPN)在传统蜂窝网络的部署，蜂窝网络呈现越来越异构化、密集化的趋势，进而产生小区间干扰严重、UE在移动过程中切换频繁等一系列降低系统容量和用户体验的问题。
针对上述问题，提出了一种去蜂窝(cell-free)系统。在该系统中，将大量安装有一根或多根天线的接入点(Access Point，AP)分布在一个较大区域，通过前传链路将数据传输到中央处理单元(Central Processing Unit，CPU)，并利用相同的时频资源为多个用户服务。AP通常只具有少量基带功能，比如预编码、信道估计和射频功能，CPU则负责调度、功率控制、导频分配功能。在该系统中，每个UE都有一个以自己为中心的小区，UE在移动过程中该小区也随之移 动，从而最大程度的降低了小区间干扰、频繁切换等对UE的影响。因此，cell-free技术是满足未来6G需求的关键技术。
但是，在cell-free相关技术中，都是假设UE在RRC连接已经建立后才能工作在cell-free模式，在此之前，UE需要按照蜂窝的形式先与蜂窝系统中的一个小区建立RRC连接，然后再把UE从蜂窝系统切换到cell-free系统。这种方法的缺陷是：蜂窝系统和cell-free系统是基于两种不同的设计理念设计的系统，前者是以基站为中心，后者是以UE为中心。相关技术将两种设计理念不同的系统拼凑在一起，UE接入cell-free系统时，仍然面临严重的小区间干扰、需要频繁的进行小区选择/小区重选等问题，这种机制甚至可能成为cell-free系统整体性能的瓶颈。因此，本申请提出一种新的接入cell-free系统的方法。
在一个实施例中，提供一种小区接入方法，所述方法应用于第一节点，如图1所示，本申请实施例提供的小区接入方法，主要包括步骤S11、S12和S13。
S11、接收第二节点在第一小区内发送的第一同步信号和第一系统信息，其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息至少包含指示发送第一申请信号所需的资源。
S12、发送第一申请信号，其中，所述第一申请信号用于请求第二节点发送第一信息。
S13、接收第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
在本实施例中，第一小区是公共小区，网络系统中可能包括一个或多个公共小区，第二小区可以理解为一个UE的专属小区。第一小区可以由传统部署的蜂窝基站来实现，也可以由分布式密集部署的AP(还包括负责管理这些AP的CPU)来实现。而专属小区则通常由分布式密集部署的AP实现，这些AP可以由传统的蜂窝基站控制。也可以由专门的中央处理单元CPU负责，在AP由中央处理单元CPU负责的情况下，CPU与蜂窝基站之间有相互通信的接口。
在一个示例性的实施方式中，所述第一申请信号在第一小区内发送，或第一申请信号在第二小区内发送。
在一个示例性的实施方式中，在所述第一申请信号在第一小区内发送的情况下，所述第一申请信号中携带第一小区同步信号的测量结果信息或UE的位置信息。
在一个示例性的实施方式中，所述第一申请信号在第二小区内发送的情况 下，所述第一申请信号中携带网络预先配置的序列。
在一个示例性的实施方式中，所述接收第一信息，包括：接收第一响应信号，其中，所述第一响应信号是第一申请信号的响应信号。
在一个示例性的实施方式中，第一节点基于所述第一信息接入第二小区的步骤，包括：
接收第二同步信号，所述第二同步信号用于第一节点与第二小区下行同步；接收第二系统信息，所述第二系统信息中携带第二资源指示信息，所述第二资源指示信息用于指示发送第二申请信号所需的资源；发送第二申请信号，所述第二申请信号用于第一节点与第二小区上行同步；接收第二响应信号，所述第二响应信号中携带允许第一节点接入的信息。
在一个示例性的实施方式中，所述接收第二同步信号，包括：
在第二同步信号的频域位置接收第二同步信号；其中，所述第二同步信号的频域位置由第一信息中携带的频域位置信息确定，或者，所述第二同步信号的频域位置由第一同步信号的频域位置以及预设关系确定。
在一个示例性的实施方式中，第一节点基于所述第一信息接入第二小区的步骤，包括：
接收第一响应信号的第一物理下行控制信道(Physical Downlink Control Channel，PDCCH)；基于所述第一PDCCH接收第一响应信号，其中，所述第一响应信号中携带第一小区的小区标识和上行授权信息；在所述上行授权信息确定的资源上发送第三申请信号，其中，所述第三申请信号中携带申请第二小区所需的信息；接收第三响应信号的第二PDCCH；所述第三响应信号是第三申请信号的响应信号；基于所述第二PDCCH接收第三响应信号，其中，所述第三响应信号中携带允许第一节点接入的信息。
在一个示例性的实施方式中，所述接收第一响应信号的第一物理下行控制信道PDCCH，包括：
在第一小区内接收第一响应信号的第一物理下行控制信道PDCCH。
在一个示例性的实施方式中，所述接收第一响应信号，包括：
在第一小区内接收第一响应信号，或者，在第二小区内接收第一响应信号。
在一个示例性的实施方式中，所述第一PDCCH采用第一无线网络临时标识(Radio Network Tempory Identity，RNTI)进行加扰。
在一个示例性的实施方式中，所述第三申请信号和所述第二PDCCH采用第二RNTI进行加扰，其中，所述第一RNTI和所述第二RNTI相同，或所述第一 RNTI和所述第二RNTI不相同。
在一个示例性的实施方式中，所述第一响应信号携带两个不同的第一RNTI和第二RNTI。
在一个示例性的实施方式中，所述第一响应信号携带第一RNTI；第二RNTI由第一RNTI和第一小区的小区标识确定，或者，所述第一响应信号携带第二RNTI；第一RNTI由第二RNTI和第一小区的小区标识确定。
在一个实施例中，提供一种小区接入方法，所述方法应用于第二节点，如图2所示，本申请实施例提供的小区接入方法，主要包括步骤S21、S22和S23。
S21、在第一小区内周期性发送的第一同步信号和第一系统信息；其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源。
S22、接收所述第一申请信号；其中，所述第一申请信号用于请求第二节点发送第一信息。
S23、发送第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
在一个示例性的实施方式中，在所述第一信息是第一响应信号的情况下，所述方法还包括：发送第二同步信号，所述第二同步信号用于第一节点与第二小区下行同步；发送第二系统信息，所述第二系统信息中携带第二资源指示信息，所述第二资源指示信息用于指示发送第二申请信号所需的资源；接收第二申请信号，所述第二申请信号用于第一节点与第二小区上行同步；发送第二响应信号，所述第二响应信号中携带允许第一节点接入的信息。
在一个示例性的实施方式中，在所述第一信息是第一响应信号的第一物理下行控制信道PDCCH的情况下，发送第一信息，包括：发送第一响应信号的第一物理下行控制信道PDCCH；所述方法还包括：发送第一响应信号，其中，所述第一响应信号中携带第一小区的小区标识和上行授权信息；接收第三申请信号，其中，所述第三申请信号中携带申请第二小区所需的信息；发送第三响应信号的第二PDCCH；所述第三响应信号是第三申请信号的响应信号；发送第三响应信号，其中，所述第三响应信号中携带允许第一节点接入的信息。
在一个实施例中，提供一种双申请信号申请接入小区的方法。
如图3所示，在UE侧，UE通过如下步骤获得第二小区。
S31、UE接收一个或多个第一小区的同步信号。利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
S32、UE接收下行同步的第一小区的系统信息，该系统信息至少携带申请第二小区服务所需的第一资源的指示信息。
S33、UE根据接收的第一小区的系统信息确定申请第二小区所需资源，在该资源上发送第一申请信号。
第一申请信号携带包括第一小区同步信号的测量结果有关的信息。比如，最强的K个第一小区同步信号的索引，其中，同步信号的索引通过物理小区索引PCI来代表，最强的K个第一小区同步信号指参考信号接收功率(Reference Signal Receiving Power，RSRP)或参考信号接收质量(Reference Signal Receiving Quality，RSRQ)最强的K个同步信号。
携带上述测量结果有关的信息的方法可以是隐式的方法。比如对于不同第一小区同步信号的索引排序/RSRP/RSRQ，网络配置不同的序列。携带上述测量结果有关的信息的方法也可以是显示的方法，对于不同第一小区同步信号的索引排序/RSRP/RSRQ，网络配置不同的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)。
网络接收到UE发送的第一申请信号(包括上述测量信息)，可以根据上述测量信息组织合适的AP集合组成第二小区为UE服务，其中，为UE服务包括发送针对该目标UE的同步信号、响应信息等。
S34、UE接收第一小区发送的针对第一申请信号的第一响应信号。
该第一响应信号至少携带第二小区同步信号的频域位置信息。
第一响应信号还可以包括第二小区同步信号所采用的序列。这个序列也是UE专有的，UE利用第二小区同步信号的频域位置信息不但可以加快同步的速度，还可以避免UE同步上本意不是为自己服务的第二小区。
S35、UE接收第二小区发送的同步信号，实现与第二小区的同步。
S36、UE接收第二小区发送的与该第二小区相关的系统信息。
该系统信息至少包括接入该第二小区的第二资源指示信息。
S37、UE在S36确定的资源上发送第二申请信号，申请获得该第二小区。
S38、UE接收第二小区发送的第二响应信号。
如果第二响应信号中指示UE的申请已经被接受，则意味着UE与第二小区 的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
相应的，在网络侧，为了配合UE申请第二小区，网络的主要包括：
1.在第一小区周期性发送第一小区的同步信号。
利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
2.在第一小区周期性发送第一小区的系统信息。
该系统信息至少携带申请第二小区服务所需的第一资源的指示信息，前述申请第二小区服务所需资源在前述第一小区的带宽内。
3.在预设的时频位置接收申请第二小区的第一申请信号。
4.在第一小区发送针对第一申请信号的第一响应信号。
该第一响应信号携带至少包括第二小区同步信号的频域位置信息。
第一响应信号还可以包括第二小区同步信号与第一小区同步信号的时间偏置，第二小区的带宽，控制资源集合配置信息(用于发送PDCCH的资源集合)等信息中的1个或多个。
5.在第二小区发送同步信号，该同步信号用于前述目标UE与该第二小区的下行同步。
6.在第二小区发送与该第二小区相关的系统信息，该系统信息至少包括接入该第二小区的第二资源指示信息。
7.接收UE在第二小区内发送的第二申请信号。
8.在第二小区发送第二申请信号的第二响应信号。
如果第二信号响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
就单次发送的同步而言，上述第二小区发送的同步信号所占用资源小于第一小区发送的同步信号，或者，第二小区发送的同步信号序列的长度短于第一小区发送的同步序列长度。
在本申请中，第一小区除了用于下行同步外，还用于区分不同的第一小区，为了尽量降低相邻小区的干扰，第一小区的同步信号通常需要使用比较长的序列，这也意味着需要占用更多的资源。而第二小区是UE专属的小区，其同步信号也为UE专用，其主要目的就是下行同步，通常需要较少的资源就可以实现该目的。
UE在S33中发送的第一申请信号和在S37中发送的第二申请信号不完全相同。
相同之处是都可以实现上行同步及UE识别，不同之处是S33中发送的第一申请信号携带第一小区同步信号的测量结果有关的信息，比如同步信号的参考信号接收功率(RSRP)或同步信号的参考信号接收质量(RSRQ)最强的K个第一小区同步信号索引(K>＝2)，这K个同步信号索引所对应的RSRP/RSRQ的值等。
在本申请中，第一小区可以由传统的基站或者实现密集部署的AP实现，基站或者AP接收到UE发送的第一申请信号(包括上述测量信息)，可以根据上述测量信息向CPU请求组织合适的AP集合组成第二小区为UE服务(包括发送针对该目标UE的同步信号、响应信息等)，这种机制比较适合上下行频点不同，信道互易性不够准确的情况。在S37中则没有这个需求，第二申请信号只要能实现上行同步及UE识别即可。
S37和S38可以拆分为4个步骤。比如：
UE在S36中确定的资源上发送上行同步的申请信号，申请获得该第二小区。该申请信号同时用于上行同步。
UE接收第二小区发送的响应信号，该响应信息中至少包括一个上行授权信息，用于UE发送UE标识(Identifier，ID)等信息。
UE在上一步确定的资源上发送UE ID等申请第二小区需要的信息。
接收第二小区发送的响应信号。
如果响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
若在S33中发送的第一申请信号的频域位置与第二小区发送同步信号的频域位置有预设的一一对应或者一对多关系。比如前述第一申请信号的频域位置为X，第二小区发送同步信号的频域位置为X+offset，其中，offset是一个固定值或者是多个固定值中的一个。在这种情况下，S34中发送或接收响应信号也可以省去而直接执行S35。
在一个实施例中，提供一种双申请信号申请接入小区的方法。如图4所示，
S41、第一小区向UE发送下行同步信号。
S42、第一小区向UE发送第一小区的系统消息。其中，该系统信息至少携带申请第二小区服务所需的第一资源的指示信息
S43、UE向第一小区发送第二小区的第一申请信号。
S44、第一小区向UE发送针对第一申请信号的第一响应信号。
S45、UE接收第二小区发送的第二小区的同步信号。
S46、UE接收第二小区发送的第二小区的系统消息。
S47、第二小区接收UE发送的第二申请信号。
S48、第二小区向UE发送第二申请信号的第二响应信号。
在一个实施例中，提供一种双申请信号申请接入小区的方法。
如图5所示，在UE侧，UE通过如下步骤获得第二小区：
S51、UE接收一个或多个第一小区的同步信号。
利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
S52、UE接收同步的第一小区的系统信息。
该系统信息至少携带申请第二小区服务所需第一资源的指示信息(包括第一资源的频点、带宽等信息)、使用第一资源所需要满足的条件。前述申请第二小区所需资源在前述第二小区的带宽内。
S53、UE根据接收的系统信息确定申请第二小区所需资源，在该资源上发送第一申请信号。该第一申请信号由网络预先配置的一个序列组成。
S54、UE接收第二小区发送的针对第一申请信号的第一响应信号，该第一响应信号至少携带第二小区同步信号的频域位置信息。
第一响应信号还可以包括第二小区同步信号所采用的序列。这个序列也是UE专有的，UE利用该信息不但可以加快同步的速度，还可以避免UE同步上本意不是为自己服务的第二小区。另外，由于UE发送的申请信号是发给第二小区的，如果由第一小区发送响应，网络需要知道申请信号是哪个第一小区分配的，如果做不到这一点，则应假设前述申请信号的频域位置与第二小区发送同步信号的频域位置有预设的一一对应或者一对多关系。比如假设前述申请信号的频域位置为X，第二小区发送同步信号的频域位置为X+offset，其中，offset是一个固定值或者是多个固定值中的一个。
offset的取值或取值集合也可以在前述第一小区的系统信息中指示，这时，S54就可以省去。
S55、UE接收第二小区发送的同步信号，实现与第二小区的同步。
第二小区发送的同步信号序列长度或所占资源小于第一小区发送的同步信号序列长度。关于第二小区发送的同步信号定时，有两种可能机制：一种可能机制是组成第二小区的AP根据接收申请信号的定时发送同步信号，相应的，双 方还可以约定发送申请信号与同步信号之间的定时；另外一种可能机制是组成第二小区的AP根据自己的时钟发送同步信号。前一种机制，UE检测同步信号更为快捷，但是cell-free系统很可能需要同时服务多个UE，多个UE的定时不同可能会造成比较大干扰。后一种机制可以避免前述机制的缺陷，缺点是UE需要按照蜂窝那样在时间上对同步信号进行滑动搜索。
S56、UE接收第二小区发送的与该小区相关的系统信息，该系统信息至少包括接入该第二小区的第二资源指示信息。
S57、UE在S56中确定的资源上发送第二申请信号，申请获得该第二小区。
S58、UE接收第二小区发送的第二响应信息。
如果第二响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
UE在S53发送的第一申请信号S56发送的第二申请信号不同。
第一申请信号的作用是让网络知道UE的存在和申请，网络根据接收的申请信号，向UE发送用于与第二小区下行同步的同步信号。UE在发送申请信号时，还没有实现与第二小区的下行同步。
另外，与上述实施例不同，由于第一申请信号是在第二小区发送的，第二小区的接收站点(如UE附近的AP)可以直接对UE发送的信号进行检测，利用信道互易性确定第二小区下行信号发送所使用的预编码，因此本实施发送的第一申请信号不需要携带第一小区同步信号的测量结果，可用网络预先配置的一个序列实现。
考虑到该第一申请信号功能，网络还会配置该第一申请信号相关的一些参数如循环前缀长度，保护间隔长度等。发送第二申请信号时，UE已经与第二小区实现了下行同步，该第二申请信号用于第二小区与UE的上行同步。
相应的，在网络侧，为了配合UE申请第二小区，网络的主要工作包括：
1、在第一小区周期性发送第一小区的同步信号。
利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
2、在第一小区周期性发送第一小区的系统信息。
该系统信息至少携带申请第二小区所需第一资源的指示信息(包括第一资源的频点、带宽等信息)、使用第一资源所需要满足的条件。前述申请第二小区所需资源在前述第二小区的带宽内。
3、在预设的时频位置接收申请第二小区的第一申请信号。
4、在第一小区上发送第一申请信号的第一响应信号。
5、在第二小区发送同步信号，该同步信号用于前述目标UE与该第二小区的下行同步。
6、在第二小区发送与该小区相关的系统信息，该系统信息至少包括接入该第二小区所需的第二资源指示信息。
7、在预设的时频位置接收申请第二小区的第二申请信号。
UE在第3步发送的第一申请信号与这里发送的申请信号不同。
8、在第二小区发送第二申请信号的第二响应信号。如果第二响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
在上述实施例中，第二小区只有在收到UE的申请后才发送同步信号及其它响应信号。这一方面避免了传统蜂窝系统中即使没有UE也要周期发送同步信号/系统信息的弊端，即节省了功率，也降低了干扰。
根据接收到的UE发送的申请信号或申请信号所携带的测量结果，网络可以生成UE专属的以UE为中心的小区，从而大幅提高UE接入系统的性能。最后，在上述实施例中，UE根据第一小区获得申请第二小区的申请资源，但是并不要求这两种类型小区同步，这也降低了方案应用的要求。
在一个实施例中，提供一种双申请信号申请接入小区的方法。如图6所示，
S61、第一小区向UE发送下行同步信号。
S62、第一小区向UE发送第一小区的系统消息。其中，该系统信息至少携带申请第二小区服务所需的第一资源的指示信息。
S63、UE向第二小区发送第二小区的第一申请信号。
S64、第一小区向UE发送针对第一申请信号的第一响应信号。
S65、UE接收第二小区发送的第二小区的同步信号。
S66、UE接收第二小区发送的第二小区的系统消息。
S67、第二小区接收UE发送的第二申请信号。
S68、第二小区向UE发送第二申请信号的第二响应信号。
在一个实施例中，提供一种单申请信号进行网络接入的方法。
如图7所示，在UE侧，UE通过如下步骤获得第二小区：
S71、UE接收一个或多个第一小区的同步信号。
利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
S72、UE接收同步的第一小区的系统信息。
该系统信息至少携带申请第二小区服务所需资源的指示信息、第二小区的频点和带宽信息、控制资源集合配置信息(用于发送PDCCH的资源集合)。前述申请第二小区所需资源在前述第二小区的带宽内。
S73、UE根据接收的第一小区的系统信息确定申请第二小区所需资源，在该资源上发送第一申请信号。
该第一申请信号由网络预先配置的一个序列组成。在接收端，该第一申请信号可以用于第二小区与UE的上行同步，还可以用于确定为UE服务的AP集合。
S74、UE接收第二小区发送的针对第一申请信号的第一响应信号
如果UE申请被接受，则第一响应信号中至少包括指示前述第一申请信号的第一小区的小区标识，一个上行授权信息等。
S75、UE在上一步确定的资源上发送UE ID等申请第二小区需要的信息。
S76、接收第二小区发送的第二响应信号。如果响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
相应的，在网络侧，为了配合UE申请第二小区，网络的主要工作包括：
1、在第一小区周期性发送第一小区的同步信号。
利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
2、在第一小区周期性发送第一小区的系统信息。
该系统信息至少携带申请第二小区所需资源的指示信息、第二小区的频点和带宽信息、控制资源集合配置信息(用于发送PDCCH的资源集合)。前述申请第二小区所需资源在前述第二小区的带宽内。
3、接收UE发送的申请第二小区的申请信号。
4、发送前述申请信号对应的响应信号。如果接受UE的申请，则响应信号中至少包括前述申请信号所属的第一小区标识，一个上行授权信息等。
5、接收UE利用前述授权资源发送的信息。该信息中至少有UE ID相关的信息。
6、向UE发送第5步的响应信息。如果接受UE的申请，该响应信息中至少包括第5步接收的UE ID信息。
与上述实施例相比，UE接入第二小区的步骤更少，不需要向第二小区申请发送下行同步信号，这也意味着可以更快的接入第二小区。
本实施例执行的条件是UE可以利用第一小区的下行定时接收第二小区的信号。再就是，UE接入第二小区后，网络可以根据需要发送UE ID。
与传统的蜂窝系统4步接入方法相比，本实施例与它们的主要差异在于：
网络向UE发送的响应信号中，携带一个第一小区标识。通过这样的设计，一方面便于第二小区的请求资源在多个第一小区共享，从而有利于实现1个第二小区可以为多个第一小区内的UE服务，另外一方面，携带该信息还可以更早的实现冲突解决，而在传统的蜂窝系统4步接入方法中，在最后1步才实现冲突解决。
在本实施例中，UE是通过第一小区的系统信息向第二小区发起接入申请，而在传统的蜂窝系统4步接入方法中，UE接入的小区与系统消息所对应小区都是同一个小区。在本实施例中，设第一小区为传统蜂窝小区，第二小区为AP密集部署的去蜂窝小区，UE接入第二小区可以获得更好的用户体验。
在一个实施例中，提供一种单申请信号进行网络接入的方法。在本实施例中，第一申请信号在第一小区发送，调度第二小区发送响应信号的下行控制信息(Downlink Control Information，DCI)要用特定的随机接入(Random Access，RA)-RNTI来加扰。
如图8所示，在UE侧，UE通过如下步骤获得第二小区：
S81、UE接收一个或多个第一小区的同步信号。
利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
S82、UE接收同步的第一小区的系统信息。
该系统信息至少携带申请第二小区所需资源的指示信息、第二小区的频点和带宽信息、控制资源集合配置信息(用于发送PDCCH的资源集合)。前述申请第二小区所需资源在前述第一小区的带宽内。
S83、UE根据接收的系统信息确定申请第二小区所需资源，在该资源上发送第一申请信号。
该第一申请信号携带包括第一小区同步信号的测量结果有关的信息，比如同步信号的参考信号接收功率(RSRP)或参考信号接收质量(RSRQ)最强的K 个第一小区同步信号索引(K>＝2)，这K个同步信号索引所对应的RSRP/RSRQ的值等。或者，该第一申请信号携带UE的位置信息。
S84、UE接收第二小区发送的第一响应信号。
调度该第一响应信号的DCI也由第二小区发送且由一个特定的RA-RNTI加扰，该RNTI与前述第一申请信号所在的第一小区标识有关。比如，该RNTI由请求符号的第1个符号在1个时隙内的索引s(设范围为0～S-1)、时隙在1个无线帧内的索引t(设范围为0～T-1)、第一申请信号所在的频域索引f(比如范围为0～F-1)、第一申请信号所在的载波索引值c(比如为0～C-1)，第一申请信号所在的小区索引值(比如范围为0～P-1)确定，其中，S、T、F、C、P都是正整数。则该RA-RNTI的取值如下：
RA-RNTI＝1+s+S*t+S*T*f+S*T*F*c+S*T*F*C*p
另外，该第一响应信号还携带一个上行授权信息。
S85、UE在上一步上行授权指示的资源上发送UE ID等申请第二小区需要的信息。
S86、接收第二小区发送的响应信息。
如果UE的申请最终被接受，该响应信息中至少包括S85发送的UE ID信息。UE如果获得该信息，相当于申请该第二小区的申请已经获得网络的确认。UE可以和网络利用该第二小区进行双向通信了。
相应的，在网络侧，为了配合UE申请第二小区，网络的主要工作包括：
1、在第一小区周期性发送第一小区的同步信号。利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
2、在第一小区周期性发送第一小区的系统信息。该系统信息至少携带申请第二小区所需资源的指示信息、第二小区的频点和带宽信息、控制资源集合配置信息(用于发送PDCCH的资源集合)。前述申请第二小区所需资源在前述第一小区的带宽内。
3、接收UE发送的申请第二小区的申请信号。该申请信号携带包括第一小区同步信号的测量结果有关的信息，比如接收信号最强的K个第一小区同步信号索引(K>＝2)。
4、发送前述申请信号对应的响应信号。调度该响应信号的DCI由一个特定的RA-RNTI加扰，该RNTI与前述申请信号所在的第一小区标识有关。比如，该RNTI由请求符号的第1个符号在1个时隙内的索引s(设范围为0～S-1)、时隙在1个无线帧内的索引t(设范围为0～T-1)、申请信号所在的频域索引f (比如范围为0～F-1)、申请信号所在的载波索引值c(比如为0～C-1)，申请信号所在的小区索引值(比如范围为0～P-1)确定。则该RA-RNTI的取值如下：
RA-RNTI＝1+s+S*t+S*T*f+S*T*F*c+S*T*F*C*p
另外，该响应信号还携带一个上行授权信息。
5、接收UE利用前述授权资源发送的信息。该信息中至少有UE ID相关的信息。
6、向UE发送第5步的响应信息。如果接受UE的申请，该响应信息中至少包括第5步接收的UE ID信息。
在一个实施例中，提供一种单申请信号进行网络接入的方法。在本实施例中，第一申请信号要携带多个第一小区测量结果，第二小区的响应信号携带第一小区标识，调度响应信号的DCI被加扰时不用考虑第一小区标识。
在UE侧，UE通过如下步骤获得第二小区：
1、UE接收1个或多个第一小区的同步信号。利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
2、UE接收同步的第一小区的系统信息，该系统信息至少携带申请第二小区服务所需资源的指示信息。
3、UE根据接收的系统信息确定申请第二小区所需资源，在该资源上发送申请信号。
该申请信号携带包括第一小区同步信号的测量结果有关的信息，比如同步信号的参考信号接收功率(RSRP)或同步信号的参考信号接收质量(RSRQ)最强的K个第一小区同步信号索引(K>＝2)，这K个同步信号索引所对应的RSRP/RSRQ的值等，不失一般性，UE通常选择在RSRP/RSRQ最好的第一小区指示的资源上发送申请信号，再考虑到申请信号与第一小区的绑定关系，因此，RSRP/RSRQ最强的第一小区索引有可能不用显示通知。在接收端，该申请信号可以用于第二小区与UE的上行同步，还可以用于确定为UE服务的AP集合。或者，该申请信号携带UE的位置信息。在接收端，该申请信号可以用于第二小区与UE的上行同步，还可以用于确定为UE服务的AP集合。
4、UE接收第二小区发送的响应信号，如果UE申请被接受，则响应信号中至少包括前述申请信号所属的第一小区标识，一个上行授权信息等。与上一实施例不同，调度该响应信号的DCI所使用的RA-RNTI与第一小区标识无关。
5、UE在上一步确定的资源上发送UE ID等申请第二小区需要的信息。
6、接收第二小区发送的响应信息。如果响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
相应的，在网络侧，为了配合UE申请第二小区，网络的主要工作包括：
1、在第一小区周期性发送第一小区的同步信号。利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
2、在第一小区周期性发送第一小区的系统信息。该系统信息至少携带申请第二小区服务所需资源的指示信息。
3、接收UE发送的申请第二小区的申请信号。
4、发送前述申请信号对应的响应信号。如果接受UE的申请，则响应信号中至少包括前述申请信号所属的第一小区标识，一个上行授权信息等。
5、接收UE利用前述授权资源发送的信息。该信息中至少有UE ID相关的信息。
6、向UE发送第5步的响应信息。如果接受UE的申请，该响应信息中至少包括第5步接收的UE ID信息。
在一个实施例中，提供一种单申请信号进行网络接入的方法。在本实施例中，第一申请信号在第二小区内发送，调度第二小区响应信号的DCI采用与第一小区标识相关的一个RA-RNTI加扰。
在UE侧，UE通过如下步骤获得第二小区：
1、UE接收1个或多个第一小区的同步信号。利用该同步信号，UE可以实现与至少一个第一小区的下行同步。
2、UE接收同步的第一小区的系统信息，该系统信息至少携带申请第二小区服务所需资源的指示信息、第二小区的频点和带宽信息、控制资源集合配置信息(用于发送PDCCH的资源集合)。前述申请第二小区所需资源在前述第二小区的带宽内。
3、UE根据接收的系统信息确定申请第二小区所需资源，在该资源上发送申请信号。该申请信号由网络预先配置的一个序列组成。在接收端，该申请信号可以用于第二小区与UE的上行同步，还可以用于确定为UE服务的AP集合。
4、UE接收第二小区发送的响应信号，调度该响应信号的DCI由一个特定的RA-RNTI加扰，该RNTI与前述申请信号所在的第一小区标识有关。比如，该RNTI由请求符号的第1个符号在1个时隙内的索引s(设范围为0～S-1)、 时隙在1个无线帧内的索引t(设范围为0～T-1)、申请信号所在的频域索引f(比如范围为0～F-1)、申请信号所在的载波索引值c(比如为0～C-1)，申请信号所在的小区索引值(比如范围为0～P-1)确定，其中，S、T、F、C、P都是正整数。则该RA-RNTI的取值如下：
RA-RNTI＝1+s+S*t+S*T*f+S*T*F*c+S*T*F*C*p
另外，该响应信号还携带一个上行授权信息。
5、UE在上一步确定的资源上发送UE ID等申请第二小区需要的信息。
6、接收第二小区发送的响应信息。如果响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
在一个实施例中，提供一种单申请信号进行网络接入的方法。在本实施例中，第一申请信号在第二小区内发送，第二小区发送的响应信号要携带申请信号所属的第一小区标识。
如图9所示，在UE侧，UE通过如下步骤获得第二小区：
S91、UE接收一个或多个第一小区的同步信号。
利用该同步信号，UE可以实现与至少一个第一小区的下行同步。UE接收同步的第一小区的系统信息，该系统信息至少携带申请第二小区服务所需资源的指示信息、第二小区的频点和带宽信息、控制资源集合配置信息(用于发送PDCCH的资源集合)。前述申请第二小区所需资源在前述第二小区的带宽内。UE接收的同步信号和系统信息，在图9中用Msg0代表，下同。
S92、UE根据接收的系统信息确定申请第二小区所需资源，在该资源上发送申请信号(图9中用Msg1代表，下同)。该申请信号由网络预先配置的一个序列组成。在接收端，该申请信号可以用于第二小区与UE的上行同步，还可以用于确定为UE服务的AP集合。
S93、UE接收第二小区发送的指示前述Msg1的响应信号(图9中用Msg2代表，下同)的PDCCH。
S94、UE根据接收的PDCCH接收第二小区发送的Msg2。UE接收第二小区发送的响应信号，如果UE的申请被接受，则响应信号中至少包括指示前述申请信号的第一小区的小区标识，一个上行授权信息等。
S95、UE在上一步确定的资源上发送UE ID等申请第二小区需要的信息(图9中用Msg3代表，下同)。
S96、UE接收指示前述Msg3的响应信号(图9中用Msg4代表，下同)的PDCCH。
S97、UE根据接收的PDCCH接收Msg4。如果响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
在本实施例中，网络需要利用1个或多个Msg2响应多个UE，这些UE可能对应不同的第一小区(PCI不同)，相应的，网络要在Msg2通知UE该Msg2是针对哪个小区的UE，即：Msg2中携带了UE所对应的PCI(Physical cell Identifier)信息或PCI的部分信息。有如下方式：
方式1：在Msg2中明确携带PCI信息，比如在新无线(New Radio，NR)中PCI有1008个，这意味着可以用10比特来指示该PCI信息。另外，还可以携带部分PCI对应的比特，如代表PCI最低有效位的K个比特(K为整数，且0<K<10)。
方式2：在确定指示Msg2的PDCCH所用的扰码(RA-RNTI)时，需要根据第一小区的PCI确定，比如按照下面方式定义RA-RNTI：
RNTI由Msg1的第1个符号在1个时隙内的索引s(设范围为0～S-1)、时隙在1个无线帧内的索引t(设范围为0～T-1)、Msg1的频域索引f(比如范围为0～F-1)、Msg1的载波索引值c(比如为0～C-1)，申请信号所在的小区索引值(比如范围为0～P-1)确定，其中，S、T、F、C、P都是正整数。则该RA-RNTI的取值如下：
RA-RNTI＝1+s+S*t+S*T*f+S*T*F*c+S*T*F*C*p
方式3：指示Msg2的PDCCH由第一小区发送，而Msg2本身又有两种可能：Msg2在第一小区内发送或者在第二小区内发送。如图10所示，通过如下步骤获得第二小区：
S101、UE接收一个或多个第一小区的同步信号。UE接收同步的第一小区的第一系统信息。
S102、UE根据接收的系统信息确定申请第二小区所需资源，在该资源上发送第一申请信号。
S103、UE接收第一小区的指示前述Msg1的响应信号的PDCCH。
S104、UE根据接收的PDCCH接收第一小区发送的Msg2。UE接收第一小区发送的响应信号，如果UE的申请被接受，则响应信号中至少包括指示前述申请信号的第一小区的小区标识，一个上行授权信息等。
S105、UE在上一步确定的资源上发送UE ID等申请第二小区需要的信息。
S106、UE接收指示前述Msg3的响应信号的PDCCH。
S107、UE根据接收的PDCCH接收Msg4。如果响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
如图11所示，通过如下步骤获得第二小区：
S111、UE接收一个或多个第一小区的同步信号。UE接收同步的第一小区的第一系统信息。
S112、UE根据接收的系统信息确定申请第二小区所需资源，在该资源上发送第一申请信号。
S113、UE接收第二小区的指示前述Msg1的响应信号的PDCCH。
S114、UE根据接收的PDCCH接收第二小区发送的Msg2。UE接收第二小区发送的响应信号，如果UE的申请被接受，则响应信号中至少包括指示前述申请信号的第一小区的小区标识，一个上行授权信息等。
S115、UE在上一步确定的资源上发送UE ID等申请第二小区需要的信息(图11中用Msg3代表，下同)。
S116、UE接收指示前述Msg3的响应信号(图11中用Msg4代表，下同)的PDCCH。
S117、UE根据接收的PDCCH接收Msg4。如果响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
相应的，在网络侧，为了配合UE申请第二小区，网络的主要工作包括：
1、在第一小区周期性发送第一小区的同步信号。利用该同步信号，UE可以实现与至少一个第一小区的下行同步。在第一小区周期性发送第一小区的系统信息。该系统信息至少携带申请第二小区所需资源的指示信息、第二小区的频点和带宽信息、控制资源集合配置信息(用于发送PDCCH的资源集合)。前述申请第二小区所需资源在前述第二小区的带宽内。
2、接收UE发送Msg1。
3、发送指示前述Msg1的响应信号(Msg2)的PDCCH。
4、发送前述响应信号(Msg2)。
5、接收UE发送的Msg 3。
6、发送指示Msg4的PDCCH。
7、发送Msg4。
与上述实施例相比，本实施例中UE接入第二小区的步骤更少，不需要向第二小区申请发送下行同步信号，这也意味着可以更快的接入第二小区。本实施例执行的条件是UE可以利用第一小区的下行定时接收第二小区的信号。再就是，UE接入第二小区后，网络可以根据需要发送UE ID。另外，本实施例还可以应用于前述实施例，比如，本实施例中的步骤2～7可以替换上述实施例中的相应步骤。
与传统的蜂窝系统4步接入方法相比，本实施例与它们的主要差异在于：
网络向UE发送的响应信号中，携带一个第一小区标识。通过这样的设计，一方面便于第二小区的请求资源在多个第一小区共享，从而有利于实现1个第二小区可以为多个第一小区内的UE服务，另外一方面，携带该信息还可以更早的实现冲突解决，而在传统的蜂窝系统4步接入方法中，在最后1步才实现冲突解决。
在本实施例中，UE是通过第一小区的系统信息向第二小区发起接入申请，而在传统的蜂窝系统4步接入方法中，UE接入的小区与系统消息所对应小区都是同一个小区。在本实施例中，设第一小区为传统蜂窝小区，第二小区为AP密集部署的去蜂窝小区，UE接入第二小区获得更好的用户体验。
UE获得第二小区的过程如图12所示。与上述实施例相比，主要差异在于：
如图12所示，通过如下步骤获得第二小区：
S121、UE接收一个或多个第一小区的同步信号。UE接收同步的第一小区的第一系统信息。
S122、UE根据接收的系统信息确定申请第二小区所需资源，在该资源上发送第一申请信号。
S123、UE接收第一小区的指示前述Msg1的响应信号的PDCCH。
S124、UE根据接收的PDCCH接收第一小区发送的Msg2。UE接收第一小区发送的响应信号，如果UE的申请被接受，则响应信号中至少包括指示前述申请信号的第一小区的小区标识，一个上行授权信息等。
S125、UE在上一步确定的资源上向第一小区发送UE ID等申请第二小区需要的信息。
S126、UE接收第二小区发送的指示前述Msg3的响应信号的PDCCH。
S127、UE根据接收的PDCCH接收二小区发送的Msg4。如果响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
在上述实施例中，用于Msg3加扰和用于Msg4的PDCCH加扰的临时小区(Temporary Cell，TC)-RNTI相同，这个RNTI在Msg2中指示。而在本实施例中，用于Msg3加扰和用于Msg4的PDCCH加扰的TC-RNTI不同，有如下机制：
机制1：Msg2提供两个TC-RNTI，一个用于Msg3加扰，一个用于指示Msg4的PDCCH加扰。
机制2：Msg2仍然和上述实施例一样只提供一个TC-RNTI，该RNTI用于Msg3加扰，第二小区/目标UE根据TC-RNTI和第一小区的PCI确定用于指示Msg4的PDCCH加扰的RNTI。
机制3：Msg2仍然和上述实施例一样只提供一个TC-RNTI，该RNTI用于指示Msg4的PDCCH加扰。第一小区/目标UE根据TC-RNTI和第一小区的PCI确定用于Msg3的TC-RNTI。
本实施例与上述实施例的另外一个差异是：指示Msg4的PDCCH、Msg4都是在第二小区发送。
在一个是实施例中，UE获得第二小区的过程如图13所示。
S131、UE接收一个或多个第一小区的同步信号。UE接收同步的第一小区的第一系统信息。
S132、UE根据接收的系统信息确定申请第二小区所需资源，在该资源上发送第一申请信号。
S133、UE接收第一小区的指示前述Msg1的响应信号的PDCCH。
S134、UE根据接收的PDCCH接收第一小区发送的Msg2。UE接收第一小区发送的响应信号，如果UE申请被接受，则响应信号中至少包括指示前述申请信号的第一小区的小区标识，一个上行授权信息等。
S135、UE在上一步确定的资源上向第二小区发送UE ID等申请第二小区需要的信息。
S136、UE接收第二小区发送的指示前述Msg3的响应信号的PDCCH。
S137、UE根据接收的PDCCH接收二小区发送的Msg4。如果响应信号中指示UE的申请已经被接受，则意味着UE与第二小区的无线连接已经建立，UE可以和网络利用该第二小区进行双向通信了。
与前面实施例相比，本实施例的主要特征在于：Msg3、指示Msg4的PDCCH及Msg4都是在UE与第二小区之间发送的。Msg3之前的信号则是在UE和第一小区之间发送的。
该方案的好处是：Msg3、指示Msg4的PDCCH及Msg4可以使用相同的TC-RNTI加扰也不会导致冲突，这样Msg2中每个媒体接入控制随机接入响应(Medium Access Control Random Access Response，MAC RAR)只需要携带1个TC-RNTI即可。
1个Msg2中可以包括多个MAC RAR，此时，Msg2及指示Msg2的PDCCH更像是个多播信号。从效率考虑，它们由蜂窝发送更为合适。这是因为它们如果由第二小区采用UE specific的方式发送，考虑到循环冗余校验(Cyclic Redundancy Check，CRC)开销，耗费资源可能反而更多。
在一个实施例中，提供一种小区接入装置，所述装置应用于第一节点，如图14所示，本申请实施例提供的小区接入方法，主要包括：
第一接收模块141，被配置为接收第二节点在第一小区内发送的第一同步信号和第一系统信息，其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；第一发送模块142，被配置为发送第一申请信号，其中，所述第一申请信号用于请求第二节点发送第一信息；第二接收模块143，被配置为接收第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
在一个示例性的实施方式中，所述第一申请信号在第一小区内发送，或第一申请信号在第二小区内发送。
在一个示例性的实施方式中，在所述第一申请信号在第一小区内发送的情况下，所述第一申请信号中携带第一小区同步信号的测量结果信息或UE的位置信息。
在一个示例性的实施方式中，所述第一申请信号在第二小区内发送的情况下，所述第一申请信号中携带网络预先配置的序列。
在一个示例性的实施方式中，所述接收第一信息，包括：接收第一响应信号，其中，所述第一响应信号是第一申请信号的响应信号。
在一个示例性的实施方式中，第一节点基于所述第一信息接入第二小区的步骤，包括：接收第二同步信号，所述第二同步信号用于第一节点与第二小区下行同步；接收第二系统信息，所述第二系统信息中携带第二资源指示信息，所述第二资源指示信息用于指示发送第二申请信号所需的资源；发送第二申请信号，所述第二申请信号用于第一节点与第二小区上行同步；接收第二响应信号，所述第二响应信号中携带允许第一节点接入的信息。
在一个示例性的实施方式中，所述接收第二同步信号，包括：在第二同步信号的频域位置接收第二同步信号；其中，所述第二同步信号的频域位置由第一信息中携带的频域位置信息确定，或者，所述第二同步信号的频域位置由第一同步信号的频域位置以及预设关系确定。
在一个示例性的实施方式中，第一节点基于所述第一信息接入第二小区的步骤，包括：接收第一响应信号的第一物理下行控制信道PDCCH；基于所述第一PDCCH接收第一响应信号，其中，所述第一响应信号中携带第一小区的小区标识和上行授权信息；在所述上行授权信息确定的资源上发送第三申请信号，其中，所述第三申请信号中携带申请第二小区所需的信息；接收第三响应信号的第二PDCCH；所述第三响应信号是第三申请信号的响应信号；基于所述第二PDCCH接收第三响应信号，其中，所述第三响应信号中携带允许第一节点接入的信息。
在一个示例性的实施方式中，所述接收第一响应信号的第一物理下行控制信道PDCCH，包括：在第一小区内接收第一响应信号的第一物理下行控制信道PDCCH。
在一个示例性的实施方式中，所述接收第一响应信号，包括：在第一小区内接收第一响应信号，或者，在第二小区内接收第一响应信号。
在一个示例性的实施方式中，所述第一PDCCH采用第一无线网络临时标识RNTI进行加扰。
在一个示例性的实施方式中，所述第三申请信号和所述第二PDCCH采用第二RNTI进行加扰，其中，所述第一RNTI和所述第二RNTI相同，或所述第一RNTI和所述第二RNTI不相同。
在一个示例性的实施方式中，所述第一响应信号携带两个不同的第一RNTI和第二RNTI。
在一个示例性的实施方式中，所述第一响应信号携带第一RNTI；第二RNTI由第一RNTI和第一小区的小区标识确定，或者，所述第一响应信号携带第二RNTI；第一RNTI由第二RNTI和第一小区的小区标识确定。
在一个实施例中，提供一种小区接入装置，所述装置应用于第二节点，如图15所示，本申请实施例提供的小区接入方法，主要包括：
第二发送模块151，被配置为在第一小区内周期性发送的第一同步信号和第一系统信息；其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；第三接收模块152，被配置为接收所述第一申请信号；其中，所述第一申请信号用于请求第二节点发送第一信息；第三发送模块153，被配置为发送第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
在一个示例性的实施方式中，在所述第一信息是第一响应信号的情况下，包括：发送第二同步信号，所述第二同步信号用于第一节点与第二小区下行同步；发送第二系统信息，所述第二系统信息中携带第二资源指示信息，所述第二资源指示信息用于指示发送第二申请信号所需的资源；接收第二申请信号，所述第二申请信号用于第一节点与第二小区上行同步；发送第二响应信号，所述第二响应信号中携带允许第一节点接入的信息。
在一个示例性的实施方式中，在所述第一信息是第一响应信号的第一物理下行控制信道PDCCH的情况下，包括：发送第一响应信号的第一物理下行控制信道PDCCH；发送第一响应信号，其中，所述第一响应信号中携带第一小区的小区标识和上行授权信息；接收第三申请信号，其中，所述第三申请信号中携带申请第二小区所需的信息；发送第三响应信号的第二PDCCH；所述第三响应信号是第三申请信号的响应信号；发送第三响应信号，其中，所述第三响应信号中携带允许第一节点接入的信息。
本实施例中提供的小区接入装置可执行本申请任意实施例所提供的小区接入方法，具备执行该方法相应的功能模块和效果。未在本实施例中详尽描述的技术细节，可参见本申请任意实施例所提供的小区接入方法。
上述小区接入装置的实施例中，所包括的各个单元和模块只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能单元的名称也只是为了便于相互区分，并不用于限制本申请的保护范围。
本申请实施例还提供一种设备，图16是本申请实施例提供的一种设备的结构示意图，如图16所示，该设备包括处理器161、存储器162、输入装置163、 输出装置164和通信装置165；设备中处理器161的数量可以是一个或多个，图16中以一个处理器161为例；设备中的处理器161、存储器162、输入装置163和输出装置164可以通过总线或其他方式连接，图16中以通过总线连接为例。
存储器162作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本申请实施例中的小区接入方法对应的程序指令/模块(例如，小区接入装置中的第一接收模块141，第一发送模块142，第二接收模块143)。又如本申请实施例中的小区接入方法对应的程序指令/模块(例如，小区接入装置中的第二发送模块151，第三接收模块152，第三发送模块153)。处理器161通过运行存储在存储器162中的软件程序、指令以及模块，从而执行设备的各种功能应用以及数据处理，即实现本申请实施例提供的任一小区接入方法。
存储器162可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据设备的使用所创建的数据等。此外，存储器162可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器162可包括相对于处理器161远程设置的存储器，这些远程存储器可以通过网络连接至设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置163可用于接收输入的数字或字符信息，以及产生与设备的用户设置以及功能控制有关的键信号输入。输出装置164可包括显示屏等显示设备。
通信装置165可以包括接收器和发送器。通信装置165设置为根据处理器161的控制进行信息收发通信。
在上述设备是第一节点的情况下，处理器161通过运行存储在系统存储器162中的程序，从而执行各种功能应用以及数据处理，例如实现本申请实施例所提供的消小区接入方法，该方法包括：
收第二节点在第一小区内发送的第一同步信号和第一系统信息，其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息至少包含指示发送第一申请信号所需的资源；发送第一申请信号，其中，所述第一申请信号用于请求第二节点发送第一信息；接收第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
处理器161还可以实现本申请任意实施例所提供的小区接入方法的技术方案。该设备的硬件结构以及功能可参见本实施例的内容解释。
在上述设备是第二节点的情况下，处理器161通过运行存储在系统存储器162中的程序，从而执行各种功能应用以及数据处理，例如实现本申请实施例所提供的小区接入方法，该方法包括：
在第一小区内周期性发送的第一同步信号和第一系统信息；其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；接收所述第一申请信号；其中，所述第一申请信号用于请求第二节点发送第一信息；发送第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
处理器610还可以实现本申请任意实施例所提供的消息交互方法的技术方案。该设备的硬件结构以及功能可参见本实施例的内容解释。
在一个示例性的实施方式中，本申请实施例还提供一种包含计算机可执行指令的存储介质，所述计算机可执行指令在由计算机处理器执行时用于执行一种小区接入方法，所述方法应用于第一节点，包括：
接收第二节点在第一小区内发送的第一同步信号和第一系统信息，其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息至少包含指示发送第一申请信号所需的资源；发送第一申请信号，其中，所述第一申请信号用于请求第二节点发送第一信息；接收第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
本申请实施例所提供的一种包含计算机可执行指令的存储介质，其计算机可执行指令不限于如上所述的方法操作，还可以执行本申请任意实施例所提供的小区接入方法中的相关操作。
本申请实施例还提供一种包含计算机可执行指令的存储介质，所述计算机可执行指令在由计算机处理器执行时用于执行一种小区接入方法，所述方法应用于第二节点，包括：
在第一小区内周期性发送的第一同步信号和第一系统信息；其中，所述第一同步信号用于第一节点与第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；接收所述第一申请信号；其中，所述第一申请信号用于请求第二节点发送第一信息；发送第一信息，其中，所述第一信息用于指示第一节点基于所述第一信息接入第二小区。
本申请实施例所提供的一种包含计算机可执行指令的存储介质，其计算机可执行指令不限于如上所述的方法操作，还可以执行本申请任意实施例所提供的小区接入方法中的相关操作。
通过以上关于实施方式的描述，本申请可借助软件及必需的通用硬件来实现，也可以通过硬件实现。本申请的技术方案本质上可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如计算机的软盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、闪存(FLASH)、硬盘或光盘等，包括多个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的方法。
术语用户终端涵盖任何适合类型的无线用户设备，例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说，本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如，一些方面可以被实现在硬件中，而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中，尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现，例如在处理器实体中，或者通过硬件，或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Instruction Set Architecture，ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现，例如但不限于只读存储器(ROM)、随机访问存储器(RAM)、光存储器装置和系统(数码多功能光碟(Digital Video Disc，DVD)或光盘(Compact Disk，CD))等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processing，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、可编程逻辑器件(Field-Programmable Gate Array，FPGA)以及基于多核处理器架构的处理器。

Claims (21)

  1. 一种小区接入方法，应用于第一节点，包括：
    接收第二节点在第一小区内发送的第一同步信号，其中，所述第一同步信号用于所述第一节点与所述第一小区下行同步；
    在所述第一节点与所述第一小区下行同步后，接收所述第二节点在所述第一小区内发送的第一系统信息，其中，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息至少包含指示发送第一申请信号所需的资源；
    在所述发送第一申请信号所需的资源上发送所述第一申请信号，其中，所述第一申请信号用于请求所述第二节点发送第一信息；
    接收所述第一信息，其中，所述第一信息用于指示所述第一节点基于所述第一信息接入第二小区。
  2. 根据权利要求1所述的方法，其中，所述第一申请信号在所述第一小区内发送，或所述第一申请信号在所述第二小区内发送。
  3. 根据权利要求2所述的方法，其中，在所述第一申请信号在所述第一小区内发送的情况下，所述第一申请信号中携带第一小区同步信号的测量结果信息或所述第一节点的位置信息。
  4. 根据权利要求2所述的方法，其中，在所述第一申请信号在所述第二小区内发送的情况下，所述第一申请信号中携带网络预先配置的序列。
  5. 根据权利要求3或4所述的方法，其中，所述接收所述第一信息，包括：
    接收第一响应信号，其中，所述第一响应信号是所述第一申请信号的响应信号。
  6. 根据权利要求5所述的方法，其中，所述第一节点基于所述第一信息接入第二小区，包括：
    基于所述第一信息接收第二同步信号，所述第二同步信号用于所述第一节点与所述第二小区下行同步；
    在所述第一节点与所述第二小区下行同步后，接收第二系统信息，所述第二系统信息中携带第二资源指示信息，所述第二资源指示信息用于指示发送第二申请信号所需的资源；
    在所述发送第二申请信号所需的资源上发送所述第二申请信号，所述第二申请信号用于所述第一节点与所述第二小区上行同步；
    接收第二响应信号，所述第二响应信号中携带允许所述第一节点接入所述第二小区的信息。
  7. 根据权利要求6所述的方法，其中，所述接收第二同步信号，包括：
    在所述第二同步信号的频域位置接收所述第二同步信号；其中，所述第二同步信号的频域位置由所述第一信息中携带的频域位置信息确定，或者，所述第二同步信号的频域位置由所述第一同步信号的频域位置以及预设关系确定。
  8. 根据权利要求1所述的方法，其中，所述接收所述第一信息，包括：
    接收第一响应信号的第一物理下行控制信道PDCCH；
    所述第一节点基于所述第一信息接入第二小区，包括：
    基于所述第一PDCCH接收所述第一响应信号，其中，所述第一响应信号中携带所述第一小区的小区标识和上行授权信息；
    在所述上行授权信息确定的资源上发送第三申请信号，其中，所述第三申请信号中携带申请所述第二小区所需的信息；
    接收第三响应信号的第二PDCCH；所述第三响应信号是所述第三申请信号的响应信号；
    基于所述第二PDCCH接收所述第三响应信号，其中，所述第三响应信号中携带允许第一节点接入所述第二小区的信息。
  9. 根据权利要求8所述的方法，其中，所述接收第一响应信号的第一PDCCH，包括：
    在所述第一小区内接收所述第一响应信号的第一PDCCH。
  10. 根据权利要求8所述的方法，其中，所述接收所述第一响应信号，包括：
    在所述第一小区内接收所述第一响应信号，或者，在所述第二小区内接收所述第一响应信号。
  11. 根据权利要求8所述的方法，其中，所述第一PDCCH采用第一无线网络临时标识RNTI进行加扰。
  12. 根据权利要求11所述的方法，其中，所述第三申请信号和所述第二PDCCH采用第二RNTI进行加扰，其中，所述第一RNTI和所述第二RNTI相同，或所述第一RNTI和所述第二RNTI不相同。
  13. 根据权利要求12所述的方法，其中，所述第一响应信号携带不同的所述第一RNTI和所述第二RNTI。
  14. 根据权利要求12所述的方法，其中，所述第一响应信号携带所述第一RNTI；所述第二RNTI由所述第一RNTI和所述第一小区的小区标识确定，或者，所述第一响应信号携带所述第二RNTI；所述第一RNTI由所述第二RNTI 和所述第一小区的小区标识确定。
  15. 一种小区接入方法，应用于第二节点，包括：
    在第一小区内周期性发送第一同步信号和第一系统信息；其中，所述第一同步信号用于第一节点与所述第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；
    接收所述第一申请信号；其中，所述第一申请信号用于请求所述第二节点发送第一信息；
    发送所述第一信息，其中，所述第一信息用于指示所述第一节点基于所述第一信息接入第二小区。
  16. 根据权利要求15所述的方法，在所述第一信息是第一响应信号的情况下，还包括：
    发送第二同步信号，所述第二同步信号用于所述第一节点与所述第二小区下行同步；
    发送第二系统信息，所述第二系统信息中携带第二资源指示信息，所述第二资源指示信息用于指示发送第二申请信号所需的资源；
    接收所述第二申请信号，所述第二申请信号用于所述第一节点与所述第二小区上行同步；
    发送第二响应信号，所述第二响应信号中携带允许所述第一节点接入所述第二小区的信息。
  17. 根据权利要求15所述的方法，其中，在所述第一信息是第一响应信号的第一物理下行控制信道PDCCH的情况下，所述发送所述第一信息，包括：
    发送所述第一响应信号的第一PDCCH；
    所述方法还包括：
    发送所述第一响应信号，其中，所述第一响应信号中携带所述第一小区的小区标识和上行授权信息；
    接收第三申请信号，其中，所述第三申请信号中携带申请所述第二小区所需的信息；
    发送第三响应信号的第二PDCCH；所述第三响应信号是第三申请信号的响应信号；
    发送所述第三响应信号，其中，所述第三响应信号中携带允许所述第一节 点接入所述第二小区的信息。
  18. 一种小区接入装置，配置于第一节点，包括：
    第一接收模块，被配置为接收第二节点在第一小区内发送的第一同步信号，其中，所述第一同步信号用于所述第一节点与所述第一小区下行同步；在所述第一节点与所述第一小区下行同步后，接收所述第二节点在所述第一小区内发送的第一系统信息，其中，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；
    第一发送模块，被配置为在所述发送第一申请信号所需的资源上发送所述第一申请信号，其中，所述第一申请信号用于请求所述第二节点发送第一信息；
    第二接收模块，被配置为接收所述第一信息，其中，所述第一信息用于指示所述第一节点基于所述第一信息接入第二小区。
  19. 一种小区接入装置，配置于第二节点，包括：
    第二发送模块，被配置为在第一小区内周期性发送第一同步信号和第一系统信息；其中，所述第一同步信号用于第一节点与所述第一小区下行同步，所述第一系统信息中携带第一资源指示信息，所述第一资源指示信息用于指示发送第一申请信号所需的资源；
    第三接收模块，被配置为接收所述第一申请信号；其中，所述第一申请信号用于请求所述第二节点发送第一信息；
    第三发送模块，被配置为发送所述第一信息，其中，所述第一信息用于指示所述第一节点基于所述第一信息接入第二小区。
  20. 一种设备，包括：
    至少一个处理器；
    存储器，被配置为存储至少一个程序；
    当所述至少一个程序被所述至少一个处理器执行，使得所述至少一个处理器实现如权利要求1-17任一项所述的小区接入方法。
  21. 一种存储介质，其中，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1-17任一项所述的小区接入方法。
PCT/CN2021/096223 2020-06-05 2021-05-27 小区接入方法、装置、设备和存储介质 Ceased WO2021244378A1 (zh)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111901848B (zh) * 2020-06-05 2025-02-07 中兴通讯股份有限公司 小区接入方法、装置、设备和存储介质
US12167321B1 (en) * 2022-01-07 2024-12-10 Qualcomm Incorporated Cell access for hiding network presence and operation
JP2025528154A (ja) * 2022-08-12 2025-08-26 ノキア テクノロジーズ オサケユイチア 拡張アクセス手順
WO2025205027A1 (ja) * 2024-03-28 2025-10-02 ソニーグループ株式会社 端末装置、ネットワーク装置、通信方法、および通信システム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103546980A (zh) * 2012-07-13 2014-01-29 电信科学技术研究院 一种小区接入的方法、系统和设备
CN106961713A (zh) * 2016-01-12 2017-07-18 中兴通讯股份有限公司 一种上行接入方法及终端和基站
CN107371176A (zh) * 2016-05-13 2017-11-21 电信科学技术研究院 一种小区操作方法及装置
CN111901848A (zh) * 2020-06-05 2020-11-06 中兴通讯股份有限公司 小区接入方法、装置、设备和存储介质

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060012242A (ko) * 2004-08-02 2006-02-07 엘지전자 주식회사 광대역 무선접속 시스템에서 기지국과 이동단말의 연계수행 방법
KR101476213B1 (ko) * 2010-07-22 2014-12-24 엘지전자 주식회사 다중 무선접속기술을 지원하는 무선 접속 시스템에서 데이터를 송수신하기 위한 방법 및 장치
KR101165643B1 (ko) * 2010-12-20 2012-07-17 엘지전자 주식회사 Ａｃｋ/ｎａｃｋ 전송방법 및 사용자기기와, ａｃｋ/ｎａｃｋ 수신방법 및 기지국
WO2013176511A1 (ko) * 2012-05-24 2013-11-28 엘지전자 주식회사 Harq ack/nack 전송 방법 및 이를 이용한 무선기기
WO2014059591A1 (en) * 2012-10-16 2014-04-24 Broadcom Corporation Initial access for standalone carrier type
JP2016119496A (ja) * 2013-04-10 2016-06-30 シャープ株式会社 基地局装置、端末装置、無線通信システム及び集積回路
CN104105149A (zh) * 2013-04-12 2014-10-15 华为终端有限公司 一种网络发现的方法、装置和系统
US9961657B2 (en) * 2014-09-25 2018-05-01 Intel IP Corporation System and method of MTC device operations
KR20180078869A (ko) 2016-12-30 2018-07-10 의료법인 성광의료재단 Dhpv를 포함하는 피부 광노화 예방, 개선 또는 치료용 조성물
CN108631949A (zh) * 2017-03-23 2018-10-09 株式会社Ntt都科摩 数据发送方法、数据接收方法、用户设备和基站
CN110035472A (zh) * 2018-01-12 2019-07-19 华为技术有限公司 一种传输方法和网络设备
WO2019139436A1 (ko) * 2018-01-12 2019-07-18 엘지전자 주식회사 무선 통신 시스템에서 물리 상향링크 제어 채널 전송 수행 방법 및 상기 방법을 이용하는 단말
CN112219422B (zh) * 2018-06-06 2022-03-25 华为技术有限公司 支持无线通信系统中的测量和移动性的系统和方法
EP3857959A1 (en) * 2018-09-25 2021-08-04 IDAC Holdings, Inc. Uplink based forward mobility
WO2020063757A1 (en) * 2018-09-27 2020-04-02 Intel Corporation Apparatus and method for beam failure recovery in secondary cell
EP3864901A4 (en) * 2018-10-12 2022-07-06 Telefonaktiebolaget Lm Ericsson (Publ) METHODS AND DEVICES FOR CELL-FREE MASSIVE MIMO COMMUNICATIONS
WO2021062853A1 (zh) * 2019-10-01 2021-04-08 Oppo广东移动通信有限公司 信号传输方法、装置、移动终端以及存储介质
CN113453310B (zh) * 2020-03-27 2023-03-03 华为技术有限公司 信号传输方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103546980A (zh) * 2012-07-13 2014-01-29 电信科学技术研究院 一种小区接入的方法、系统和设备
CN106961713A (zh) * 2016-01-12 2017-07-18 中兴通讯股份有限公司 一种上行接入方法及终端和基站
CN107371176A (zh) * 2016-05-13 2017-11-21 电信科学技术研究院 一种小区操作方法及装置
CN111901848A (zh) * 2020-06-05 2020-11-06 中兴通讯股份有限公司 小区接入方法、装置、设备和存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4164296A4 *

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