Communication method and related device

Abstract

Provided in the present application are a communication method and a related device. The method comprises: a first base station allocating a terminal identifier to a terminal, wherein the terminal identifier is used for paging the terminal on the basis of a wake-up signal (WUS), and the length of the terminal identifier is less than the length of an I-RNTI of the terminal; the first base station sending the terminal identifier to the terminal; when the terminal in an inactive state is paged, the first base station generating the WUS on the basis of the terminal identifier, wherein the WUS carries the terminal identifier; and the first base station sending the WUS to the terminal.

Description

Communication method and related equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on January 25, 2024, with application number 202410106917.3 and invention name “Communication Methods and Related Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and related equipment. Background Art

[0003] When paging an inactive terminal, the paging message sent by the core network to the base station and the paging message sent by the base station to the terminal typically include an initial random access radio network temporary identifier (I-RNTI), which is used to identify the terminal. The I-RNTI is typically 24 bits long.

[0004] When using a low-power wake-up signal (WUS) to directly wake up an inactive terminal, the WUS needs to carry the terminal identifier. If the WUS is used to carry an existing terminal identifier, such as a 24-bit I-RNTI, the amount of terminal identifier information may exceed the maximum amount of information that the WUS can carry, making implementation difficult. Summary of the Invention

[0005] This application provides a communication method and related equipment that implements the allocation of an identifier dedicated to WUS paging. When using WUS to wake up a terminal to access the network, a new terminal identifier with a shorter length than the I-RNTI is used, thereby reducing the amount of WUS information and thus simplifying the difficulty of directly waking up the terminal using WUS. The technical solution is as follows.

[0006] The first aspect of the present application provides a communication method, the method comprising: a first base station assigns a terminal identifier to a terminal, the terminal identifier is used to page the terminal based on a wake-up signal WUS, the length of the terminal identifier is less than the length of the I-RNTI of the terminal; the first base station sends the terminal identifier to the terminal; when paging a terminal in an inactive state, the first base station generates a WUS based on the terminal identifier, and the WUS carries the terminal identifier; the first base station sends the WUS to the terminal.

[0007] The terminal identifier is also called a WUS identifier or paging identifier. In the above method, the base station assigns a terminal identifier dedicated to WUS paging to an inactive terminal. The length of the terminal identifier dedicated to WUS paging is shorter than the existing I-RNTI length, thereby reducing the amount of terminal identifier information, reducing terminal identifier overhead, and thus reducing the resources occupied by transmitting and receiving terminal identifiers when using WUS to directly wake up the terminal. Furthermore, the amount of WUS information required to carry the terminal identifier is reduced, thereby reducing the difficulty of implementing direct terminal wake-up using WUS.

[0008] In some embodiments, the first base station sending the terminal identifier to the terminal includes: the first base station generating a radio resource control (RRC) release message based on the terminal identifier, the RRC release message carrying the terminal identifier; and the first base station sending the RRC release message to the terminal. Because the RRC release message carries the terminal identifier, the terminal can be released to an inactive state while simultaneously transmitting the terminal identifier dedicated for WUS paging to the terminal. This is equivalent to simultaneously performing the tasks of releasing the terminal to an inactive state and sending the terminal identifier dedicated for WUS paging, thereby improving efficiency.

[0009] In some embodiments, the first base station is an anchor base station, and the method further includes: when paging a terminal in an inactive state, the first base station sends a paging message to a second base station, where the second base station is another base station adjacent to the first base station, and the paging message carries a terminal identifier. Because the first base station sends the same new terminal identifier to the terminal and the second base station, respectively, the new terminal identifiers obtained by the terminal and the second base station are consistent. Then, when the terminal moves within the coverage area of ​​the second base station, the terminal is still able to receive a WUS from the second base station based on the new terminal identifier previously received from the first base station, thereby being successfully awakened by the second base station.

[0010] In some embodiments, the first base station sending a paging message to the second base station includes: the first base station sending Xn signaling to the second base station, where the Xn signaling carries the paging message. Xn signaling is control signaling used for communication between different base stations. Xn can also be understood as the communication interface between different base stations. By using Xn signaling to carry the paging message and, in turn, the terminal identifier dedicated to WUS paging, existing Xn signaling is reused, reducing implementation complexity.

[0011] In some embodiments, the first base station assigning a terminal identifier to the terminal includes: the first base station truncating at least one bit from the rightmost side of the I-RNTI of the terminal to obtain the terminal identifier. Considering that in the I-RNTI data structure, information toward the left is more general and public, while information toward the right is more unique, truncating the terminal identifier used for WUS paging from the rightmost side of the I-RNTI of the terminal reduces the likelihood of duplication of the terminal identifier, thereby improving the distinction and identification effect.

[0012] In some implementations, before the first base station assigns a terminal identifier to the terminal, the method further includes:

[0013] The first base station receives a capability identifier from the terminal, where the capability identifier indicates that the terminal supports paging the terminal based on a wake-up signal WUS.

[0014] By sending the capability identifier, the terminal is equivalent to reporting to the base station its receiving capability that supports WUS paging, so that the base station knows that the terminal can receive WUS including the new terminal identifier. Therefore, the base station can allocate new terminal identifiers only to terminals that support WUS, and there is no need to allocate new terminal identifiers to terminals that do not support WUS, saving the overhead of allocating terminal identifiers.

[0015] The second aspect of the present application provides a communication method, which includes: a second base station receives a paging message from a first base station, the second base station is another base station adjacent to the first base station, the paging message carries a terminal identifier, and the terminal identifier is used to page the terminal based on a wake-up signal WUS; the second base station generates a WUS based on the terminal identifier, and the WUS carries the terminal identifier; the second base station sends the WUS to the terminal.

[0016] Considering that the terminal may move from the anchor base station that originally released the terminal to the coverage area of ​​other base stations, by receiving the paging message from the anchor base station, the terminal identifier carried in the paging message is used to page the terminal, so that the terminal can still be paged based on WUS in the scenario where the terminal moves.

[0017] In some implementations, the length of the terminal identifier is smaller than the length of the I-RNTI of the terminal.

[0018] The third aspect of the present application provides a communication method, which includes: the terminal receives a terminal identifier from a first base station, the terminal identifier is used to page the terminal based on a wake-up signal WUS, and the length of the terminal identifier is less than the length of the terminal's I-RNTI; the terminal receives the WUS from the first base station, and the WUS carries the terminal identifier; the terminal sends a paging response to the first base station, and the paging response carries the terminal identifier.

[0019] In some implementations, the terminal receiving the terminal identifier from the first base station includes:

[0020] The terminal receives an RRC release message from the first base station, where the RRC release message carries a terminal identifier.

[0021] In some implementations, the terminal sending a paging response to the base station includes:

[0022] The terminal sends message 3 to the base station, where message 3 includes the terminal identifier.

[0023] A fourth aspect of the present application provides a communication method, the method comprising: a first base station generating an interception indication, the interception indication being used to instruct interception of an I-RNTI of a terminal to obtain a terminal identifier, the terminal identifier being used to page the terminal based on a wake-up signal WUS, the length of the terminal identifier being shorter than the length of the I-RNTI of the terminal;

[0024] When the first base station releases the terminal to an inactive state, the first base station sends an interception instruction to the terminal;

[0025] When paging a terminal in an inactive state, the first base station generates a WUS based on the terminal identifier, and the WUS carries the terminal identifier.

[0026] In some embodiments, the interception instruction includes an interception rule, and the interception rule includes at least one of an interception position and / or a number of intercepted bits.

[0027] In some implementations, the truncation rule includes truncating k bits from the rightmost side of the I-RNTI as the terminal identifier, where k is greater than 1.

[0028] In some implementations, the first base station sending the intercept indication to the terminal includes:

[0029] When the first base station releases the terminal to the inactive state, the first base station sends an interception instruction to the terminal.

[0030] In some implementations, the first base station sending the intercept indication to the terminal includes:

[0031] The first base station generates an RRC release message, where the RRC release message carries an intercept indication;

[0032] The first base station sends an RRC release message to the terminal.

[0033] In some implementations, the first base station is an anchor base station, and the method further includes:

[0034] When paging a terminal in an inactive state, a first base station sends a paging message to a second base station, where the second base station is another base station adjacent to the first base station, and the paging message carries an interception indication.

[0035] A fifth aspect of the present application provides a communication method, the method comprising: a second base station receiving a paging message from a first base station, the second base station being another base station adjacent to the first base station, the paging message including a terminal identifier, the terminal identifier being used to page the terminal based on a wake-up signal WUS;

[0036] The second base station intercepts the terminal identifier from the I-RNTI of the terminal based on the interception indication, where the length of the terminal identifier is shorter than the length of the I-RNTI of the terminal;

[0037] The second base station generates a WUS based on the terminal identifier, where the WUS carries the terminal identifier;

[0038] The second base station sends a WUS to the terminal.

[0039] In some embodiments, the interception indication includes an interception rule, the interception rule includes at least one of an interception position and / or a number of intercepted bits, and the second base station intercepts the terminal identifier from the I-RNTI of the terminal based on the interception indication, including:

[0040] The second base station intercepts bits corresponding to the number of bits from the interception position in the I-RNTI of the terminal to obtain the terminal identifier.

[0041] A sixth aspect of the present application provides a communication method, the method comprising: a terminal receiving an interception indication from a first base station, the interception indication being used to instruct interception of an I-RNTI of the terminal to obtain a terminal identifier, the terminal identifier being used to page the terminal based on a wake-up signal WUS;

[0042] The terminal intercepts the terminal identifier from the I-RNTI of the terminal based on the interception indication, where the length of the terminal identifier is less than the length of the I-RNTI of the terminal;

[0043] The terminal receives a WUS from the first base station, where the WUS carries a terminal identifier;

[0044] The terminal sends a paging response to the first base station, where the paging response includes a terminal identifier.

[0045] In some implementations, the interception indication includes an interception rule, the interception rule includes at least one of an interception position and / or a number of intercepted bits, and the terminal intercepts the terminal identifier from the I-RNTI of the terminal based on the interception indication, including:

[0046] The terminal intercepts bits corresponding to the number of bits from the interception position in the I-RNTI of the terminal to obtain a terminal identifier.

[0047] In some implementations, the terminal receiving the intercept indication from the first base station includes:

[0048] The terminal receives an RRC release message from the first base station, where the RRC release message carries an interception rule.

[0049] A seventh aspect of the present application provides an electronic device, comprising: a memory and at least one processor. The memory is used to store programs, and the at least one processor is used to run the programs, so that the electronic device implements the communication method provided in the first aspect of the present application.

[0050] The eighth aspect of the present application provides an electronic device, comprising: a memory and at least one processor. The memory is used to store programs, and the at least one processor is used to run the programs, so that the electronic device implements the communication method provided in the second aspect of the present application.

[0051] The ninth aspect of the present application provides an electronic device, comprising: a memory and at least one processor. The memory is used to store programs, and the at least one processor is used to run the programs, so that the electronic device implements the communication method provided in the third aspect of the present application.

[0052] The tenth aspect of the present application provides an electronic device, comprising: a memory and at least one processor. The memory is used to store programs, and the at least one processor is used to run the programs, so that the electronic device implements the communication method provided in the fourth aspect of the present application.

[0053] The eleventh aspect of the present application provides an electronic device, comprising: a memory and at least one processor. The memory is used to store programs, and the at least one processor is used to run the programs, so that the electronic device implements the communication method provided in the fifth aspect of the present application.

[0054] The twelfth aspect of the present application provides an electronic device, comprising: a memory and at least one processor. The memory is used to store programs, and the at least one processor is used to run the programs, so that the electronic device implements the communication method provided in the sixth aspect of the present application.

[0055] The thirteenth aspect of the present application provides a communication system, including the electronic device provided in the seventh aspect, the electronic device provided in the eighth aspect, and the electronic device provided in the ninth aspect.

[0056] The fourteenth aspect of the present application provides a communication system, including the electronic device provided in the tenth aspect, the electronic device provided in the eleventh aspect, and the electronic device provided in the twelfth aspect.

[0057] The fifteenth aspect of the present application provides a computer storage medium for storing a computer program. When the computer program is executed, it is used to implement the communication method provided in any aspect from the first aspect to the sixth aspect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] FIG1 is an example diagram of a scenario of communication between a base station and a terminal disclosed in an embodiment of the present application;

[0059] FIG2 is a flowchart of an idle paging process provided by an embodiment of the present application;

[0060] FIG3 is a schematic diagram of a WUS-based wake-up method provided in an embodiment of the present application;

[0061] FIG4 is a flow chart of another communication method disclosed in an embodiment of the present application;

[0062] FIG5 is a flow chart of another communication method disclosed in an embodiment of the present application;

[0063] FIG6 is a structural diagram of an electronic device disclosed in an embodiment of the present application;

[0064] FIG7 is a structural diagram illustrating another electronic device disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0065] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0066] The following is an example of an application scenario of the embodiment of the present application.

[0067] The embodiments of the present application are applied to communication systems, which may be second-generation (2G) communication systems, third-generation (3G) communication systems, long-term evolution (LTE) systems, fifth-generation (5G) communication systems, LTE and 5G hybrid architectures, 5G new wireless (5G New Radio, 5G NR) systems, and new communication systems that may emerge in future communication developments.

[0068] The communication system includes at least one base station and a terminal. A base station can be a device on the network side used to provide network communication functions, and in some cases is also called a network device or a network element. A network device can generally be a base station (including a functional unit of a base station, or a combination of functional units of a base station) or a core network unit, wherein a core network unit can be a functional unit in the core network, including but not limited to an access and mobility management function (AMF) unit or a session management function (SMF) unit. A terminal can be a device that accesses the network. An example of a communication system is shown in Figure 1, which includes a base station 1 and a terminal 2.

[0069] In the embodiments provided in the present application, the base station can be any device with wireless transceiver functions, including but not limited to: an evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in long term evolution (LTE), a base station (gNodeB or gNB) or a transmission receiving point (TRP) in new radio (NR), a base station of subsequent evolution of 3GPP, an access node in a Wi-Fi system, a wireless relay node, a wireless backhaul node, etc. The base station can be: a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station, etc. The base station can include one or more co-site or non-co-site transmission points (Transmission Reception Point, TRP). The base station can also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario. The base station can communicate with the terminal, or communicate with the terminal through a relay station. The terminal can communicate with multiple base stations of different technologies. For example, the terminal can communicate with a base station that supports the LTE network, and can also communicate with a base station that supports the 5G network. It can also establish dual connections with a base station that supports the LTE network and a base station that supports the 5G network.

[0070] In the embodiments provided herein, the terminal may be in various forms, such as a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a vehicle-mounted terminal device, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wearable terminal device, etc. The terminal may also be sometimes referred to as a terminal device, user equipment (UE), access terminal device, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, terminal device, wireless communication device, UE agent or UE device, etc. The terminal may also be a fixed terminal or a mobile terminal.

[0071] The embodiment of the present application is suitable for use in scenarios where a low-power wake-up signal (WUS) is used to paging an inactive terminal. For ease of understanding, the following first explains inactive terminal paging and WUS.

[0072] In cellular communication systems like 4G and 5G, the network provides services to terminals in cells. After selecting a cell, a terminal (UE) resides in it, ready to initiate uplink services and receive downlink services at any time. From the perspective of the radio access network, a terminal can have three different service states within a cell.

[0073] RRC_idle (inactive state): The UE resides in a cell with no ongoing services and is invisible to the base station and core network. The UE only monitors system broadcasts to ensure it retains the latest system information. This allows it to monitor paging (triggering cell access for uplink services) and initiate random access (active access to the network for uplink services) as needed. Paging may include triggering downlink services, system message changes, and multicast service start indications.

[0074] RRC_Connected (connected state): The UE responds to network paging or actively initiates random access, establishes an RRC connection with the base station, and transmits services. The UE is visible to both the base station and the core network.

[0075] RRC_inactive (Inactive state): The UE resides in a cell with no ongoing services. This state is typically configured by the base station when the connected state is released. The base station is invisible, but the core network still considers the terminal to be in the connected state. The UE behaves similarly to the inactive state, primarily monitoring paging and system messages. The main difference is that paging is primarily RAN paging sent by the base station.

[0076] In cellular systems, regardless of their state, terminals recognize that downlink control information and data sent by the base station can occur at any time, based on a macroscopic time granularity. Therefore, theoretically, UEs within a cell must constantly monitor various control and data channels to ensure they don't miss any downlink control information and data sent by the network. However, the actual time a terminal spends receiving downlink control information and data from the network is relatively short. Therefore, this monitoring logic significantly impacts terminal power consumption, rendering extensive monitoring useless.

[0077] Therefore, for some downlink control information or data, both 4G and 5G were designed from the outset with discontinuous reception (DRX). DRX specifically refers to the discontinuous reception of downlink information from the terminal's perspective. In the DRX mechanism, the base station and terminal periodically transmit and receive specific downlink control information or data in an agreed-upon manner, reducing the terminal's monitoring power consumption while meeting downlink latency requirements. This mechanism primarily includes the following features.

[0078] Idle / inactive DRX is mainly called paging in the protocol. The terminal periodically listens for possible paging messages at the agreed time and frequency locations.

[0079] Connected DRX, mainly referred to as DRX in the protocol, does not require the terminal to continuously monitor scheduling information during connected services. Instead, it monitors periodically based on the sparseness of services.

[0080] The goal of various types of periodic monitoring is to prevent the terminal from continuously monitoring downlink data and information through an agreed-upon method between the terminal and the base station, thereby saving terminal power. Despite this, 3GPP continues to research various DRX optimization solutions during standard evolution. Currently, there are two main areas of focus: Continuous optimization of downlink DRX from the terminal's perspective aims to continuously reduce the energy consumed by the terminal during downlink monitoring through various optimizations. This includes the Rel-16 / 17 power saving project and the Rel-18 / 19 low-power wake-up signal (WUS) / wake-up receiver (WUR) project.

[0081] For terminals without services, there is no need to remain in a connected state and occupy the base station's radio resources. In this case, the terminal simply resides in the cell in an inactive state, periodically monitoring paging according to the paging process and responding to downlink service requests from the network at any time.

[0082] Although some terminals do not have continuous services, they may have short and frequent services. For such terminals, if the idle state paging process is used, the core network will page frequently, and each paging is initiated by the core network. The terminal will respond to the core network before performing services. The end-to-end experiment is large and the network signaling overhead is also large. Therefore, the late 4G and 5G newly introduced a state between the connected state and the idle state, the inactive state. The inactive terminal is also in a non-service state and listens to network paging, but when establishing a connection, it establishes a connection with the base station (the connection with the core network is not released before), and the delay and signaling overhead are smaller.

[0083] For example, please refer to FIG. 2 , which is a flowchart of an inactive paging process provided in an embodiment of the present application. The inactive paging process includes the following process.

[0084] The base station broadcasts paging-related configurations to the terminal, including a period, other time information, and frequency domain resource information for paging, etc. For example, the base station sends a system information block (SIB), which includes the paging-related configurations.

[0085] The terminal receives the broadcast SIB and monitors paging in a paging occasion (PO) in a corresponding paging frame (PF) according to the information configured in the SIB and the paging cycle.

[0086] After a terminal enters the connected state, when the connection is released, the base station can instruct the terminal to enter the inactive state instead of the idle state. At the same time, it provides the terminal ID (I-RNTI) used for the inactive state and the inactive paging cycle. The terminal enters the inactive state.

[0087] Based on the SIB configuration and the inactive configuration, the terminal uses the inactive paging cycle and listens for paging in the paging occasion (PO) of the corresponding paging frame (PF). The PO and PF are determined in the same way as in the idle state, with the difference being the cycle selection. The terminal selects the shorter cycle from the SIB broadcast cycle and the inactive cycle, and listens for paging in the corresponding PO, just as it does in the idle state.

[0088] When the core network has downlink services, it is sent directly to the base station previously connected to the terminal.

[0089] After the base station receives the service and knows that the terminal has been released to the inactive state by itself, it will determine the terminal's PO according to its own system broadcast configuration and Release configuration, using the same method as the terminal as agreed in the 304 protocol, and send a paging message containing the terminal ID (I-RNTI) on the PO.

[0090] The anchor base station (the base station that previously released the terminal) also sends a paging message to other neighboring base stations, allowing them to page the terminal. These neighboring base stations behave the same way as the current base station. For example, the anchor base station sends a paging message to base stations other than the anchor base station in the Radio Access Network Tracking Area (RAN TA), which then page the terminal simultaneously.

[0091] If a terminal receives a paging message at any time, and the paging message contains the terminal's own identifier, it confirms that it has been paged and initiates a connection resume (RRC connection resume) message to restore the connection with the base station (the core network connection already exists), enters RRC_CONNECTED, and receives or sends data. After the service is completed, the base station uses an RRC Release message to release the terminal, and the terminal returns to the idle state or inactive state.

[0092] In the above paging process, the terminal identifier carried in the paging message sent by the base station to the terminal is I-RNTI, and the terminal identifier carried in the paging message sent by the anchor base station to the adjacent base station is also I-RNTI. I-RNTI is the terminal identifier assigned by the base station, and I-RNTI is unique within the area negotiated by some base stations.

[0093] Rel-18 / 19 Paging Enhancement - WUS / WUR

[0094] Rel-19 introduces Wake up signal / receiver (WUS / WUR) to further reduce the power consumption of paging reception. In the paging mechanism before Rel-17, the terminal needs to monitor PDCCH and decode the paging early indication (PEI) or P-RNTI DCI before PO, so it is necessary to wake up the main receiver (MR) before PO. In Rel-18, the introduction of a receiver with lower power consumption, namely a low power receiver (LR) or WUR, is considered. This receiver can receive a simpler WUS (possibly just sequence correlation, without PDCCH decoding), so it consumes less power. Therefore, as shown in Figure 3, for terminals that are not paged, it is only necessary to start LR before PO to detect WUS. If no WUS is detected, it continues to sleep. If WUS is detected, the MR is woken up to listen for paging.

[0095] Research and analysis of the above scenario revealed that the length of the terminal identifier represents the amount of information contained in the terminal identifier. A longer terminal identifier represents a greater amount of information contained in the terminal identifier, and therefore requires more resources to transmit and receive the terminal identifier. However, the amount of information that a WUS can carry is limited. Therefore, if a WUS is used to directly indicate that a terminal is being paged, it means that the WUS includes the terminal identifier of that terminal. Using existing terminal identifiers would make the WUS difficult to design, as it is difficult to indicate 24 bits of information in a single signal. Furthermore, since the WUS needs to carry more information, the WUS overhead will be significant, and the resources required to transmit and receive the WUS will also increase.

[0096] In view of this, in some embodiments of the present application, the network side allocates a terminal identifier dedicated to WUS paging to an inactive terminal. The length of the terminal identifier dedicated to WUS paging is shorter than the length of the existing terminal identifier, thereby reducing the amount of terminal identifier information, reducing the terminal identifier overhead, and further reducing the resources occupied by sending and receiving terminal identifiers when using WUS to directly wake up the terminal. For example, the length of the terminal identifier is shorter than the 24-bit I-RNTI. The specific length of the terminal identifier can be determined based on the accuracy requirements for identifying the terminal and the resource overhead requirements.

[0097] In addition, considering that inactive terminals are online to the core network, the core network usually does not need to page inactive terminals. The base station allocates a terminal identifier dedicated to WUS paging to the inactive terminals. When using WUS paging, the base station uses the terminal identifier allocated by this end, which is more in line with the paging scenario in the inactive state.

[0098] Methods for allocating a terminal identifier dedicated for WUS paging to an inactive terminal include allocating a new terminal identifier and truncating the I-RNTI. The following respectively illustrates these two methods with reference to the embodiments of FIG4 and FIG5 .

[0099] Regardless of whether a new terminal identifier is allocated or a shortened I-RNTI is used, the obtained terminal identifier can be used to page the terminal based on the WUS.

[0100] Furthermore, no matter whether a new terminal identifier is allocated or the I-RNTI is truncated, since the obtained terminal identifier is shorter than the I-RNTI, the amount of information of the WUS carrying the terminal identifier can be reduced.

[0101] Referring to Figure 4, Figure 4 shows a schematic flow chart of a communication method provided by an embodiment of the present application. The process shown in Figure 4 is executed interactively by a terminal and a base station. The method shown in Figure 4 involves interaction between multiple base stations. In order to distinguish different base stations, "first base station" is used to describe the base station that previously released the terminal, and "second base station" is used to describe other base stations adjacent to the base station that previously released the terminal. The process shown in Figure 4 includes the following steps.

[0102] Step S310: The terminal sends a capability identifier to the first base station.

[0103] The capability identifier indicates that the terminal supports WUS-based paging terminals. By sending the capability identifier, the terminal is equivalent to reporting its receiving capability of supporting WUS paging to the first base station, so that the first base station perceives that the terminal can receive WUS including the new terminal identifier, triggering the first base station to allocate a new terminal identifier to the terminal. For example, when the value of the capability identifier is 1, it indicates that the terminal supports WUS-based paging terminals, that is, the uplink NAS signaling carries the capability identifier. When the value of the capability identifier is 0, it indicates that the terminal does not support WUS-based paging terminals.

[0104] Step S320: The first base station allocates a new terminal identifier to the terminal.

[0105] In some implementations, when the first base station releases the terminal to the inactive state, the first base station allocates a new terminal identifier to the terminal.

[0106] In some other implementations, the first base station pre-allocates a new terminal identifier to the terminal before releasing the terminal; when the first base station releases the terminal to an inactive state, the first base station sends the allocated new terminal identifier to the terminal.

[0107] In some implementations, the first base station receives a capability identifier from the terminal, determines based on the capability identifier that the terminal supports the capability of paging the terminal based on WUS, and then performs an action of allocating a terminal identifier.

[0108] The new terminal identifier is used to page the terminal based on WUS. The new terminal identifier is different from the I-RNTI of the terminal. The length of the new terminal identifier is less than the length of the I-RNTI of the terminal. The length of the new terminal identifier is less than 24 bits. The new terminal identifier can uniquely identify the corresponding terminal within the coverage range of the first base station (such as within the cell served by the first base station). In other words, the terminal identifiers of different terminals within the coverage range of the first base station are different, avoiding the probability of different terminals being awakened by the same WUS due to the terminal identifier, and reducing the risk of waking up terminal B by mistake when terminal A should be awakened. In some embodiments, the new terminal identifier can uniquely identify the corresponding terminal within the area negotiated between the first base station and the second base station adjacent to the first base station. In other words, the terminal identifiers of different terminals in the area negotiated between the first base station and the second base station adjacent to the first base station are different, so that the terminal can be successfully awakened regardless of whether it is in the coverage range of the first base station or moves to the area covered by the second base station, and also reduces the risk of waking up terminal B by mistake when terminal A should be awakened.

[0109] Step S330: The first base station sends a new terminal identifier to the terminal.

[0110] In some implementations, the first base station generates an RRC release message based on the new terminal identifier, the RRC release message includes the new terminal identifier, and the first base station sends the RRC release message to the terminal, thereby delivering the new terminal identifier to the terminal through the RRC release message.

[0111] Step S332: The terminal receives a new terminal identifier from the first base station.

[0112] In some implementations, the terminal receives an RRC release message, and based on the RRC release message, the terminal switches the state of the terminal to an inactive state; and the terminal obtains and saves a new terminal identifier carried in the RRC release message.

[0113] Step S340: When paging a terminal in an inactive state, the first base station generates a WUS based on a new terminal identifier allocated by the first base station, where the WUS carries the terminal identifier.

[0114] This embodiment is described by taking the base station using the WUS paging method as an example. In other implementations, the first base station uses a legacy paging method, and the first base station uses the legacy paging method to page the terminal based on the I-RNTI of the terminal.

[0115] There are multiple implementations for how the first base station determines which paging method to use.

[0116] In some implementations, the first base station determines whether to use the WUS paging method or the legacy paging method based on configuration information stored by the first base station.

[0117] In other embodiments, the first base station determines whether to use the WUS paging method or the legacy paging method based on the paging capability of the first base station. For example, if the first base station supports WUS paging of the terminal, the first base station uses WUS paging of the terminal based on the new terminal identifier. If the first base station does not support WUS paging of the terminal, the first base station uses the legacy paging method based on the terminal's I-RNTI to page the terminal.

[0118] For another example, if the first base station's WUS paging function is activated, the first base station uses WUS paging to page the terminal based on the new terminal identifier. If the first base station's WUS paging function is not activated or invalid, the first base station uses legacy paging to page the terminal based on the terminal's I-RNTI.

[0119] WUS is used to wake up the terminal in idle state. WUS carries a new terminal identification. For example, WUS represents the terminal identification by the state of the value. For example, WUS carries a binary sequence, and different values ​​in the binary sequence represent different information. For example, if the terminal identification has 10 bits, then the terminal identification of all terminals has a total of 2 10 =1024, the WUS sequence contains at least 1024 distinguishable different states, thereby indicating the correct terminal.

[0120] Step S350: The first base station sends a WUS to the terminal.

[0121] For example, the first base station sends a WUS within the cell served by the first base station, thereby paging the terminal within the cell served by the first base station.

[0122] Step S360: The first base station generates a paging message based on the new terminal identifier.

[0123] The paging message is used to instruct the terminal to be paged based on the new terminal identifier. The paging message carries the new terminal identifier.

[0124] Step S362: The first base station sends a paging message to the second base station.

[0125] The first base station is an anchor base station. The second base station is, for example, a neighbor base station of the first base station. The first base station and the second base station are located in the same tracking area. Considering that the terminal may move from the cell served by the first base station to the cell served by the second base station, the first base station sends a new terminal identifier to the second base station, allowing the second base station to use WUS paging for the terminal based on the new terminal identifier, thereby supporting WUS-based paging of the terminal across base stations in terminal mobility scenarios.

[0126] The new terminal identifier carried in the paging message sent by the first base station to the second base station is the same as the new terminal identifier sent by the first base station to the terminal in step S330. Since the first base station sends the same new terminal identifier to the terminal and the second base station, the new terminal identifiers obtained by the terminal and the second base station are the same. Then, when the terminal moves into the coverage area of ​​the second base station, the terminal can still receive the WUS from the second base station based on the new terminal identifier previously received from the first base station, and is successfully awakened by the second base station.

[0127] Optionally, the paging message sent by the first base station includes not only the new terminal identifier, but also the I-RNTI of the terminal. Considering that other base stations (second base stations) adjacent to the anchor base station have a certain probability of not supporting WUS-based paging terminals, the first base station carries both the I-RNTI and the new terminal identifier in the paging message, so that the second base station can use WUS paging terminals based on the new terminal identifier and can also use legacy paging to page the terminal, thereby being compatible with scenarios where adjacent base stations do not support WUS paging, and having higher flexibility.

[0128] Optionally, the paging message sent by the first base station includes not only the new terminal identifier but also a paging type, where the paging type is used to indicate that the terminal is paging based on WUS.

[0129] In some implementations, the first base station sends a paging message to the second base station via Xn signaling, where the Xn signaling carries a new terminal identifier.

[0130] Step S364: The second base station receives a paging message from the first base station.

[0131] In some implementations, the second base station receives the Xn signaling and obtains the paging message carried in the Xn signaling.

[0132] Step S368: The second base station generates a WUS based on the new terminal identifier carried in the paging message.

[0133] Step S369: The second base station sends a WUS to the terminal.

[0134] There are multiple implementations for how the second base station determines which paging method to use to page the terminal.

[0135] In some embodiments, the second base station determines the paging method to be used based on an indication carried in the paging message. For example, the second base station obtains the paging type carried in the paging message. If the paging type carried in the paging message indicates a WUS-based paging terminal, the second base station generates a WUS based on the new terminal identifier, and the WUS is used to wake up the inactive terminal.

[0136] In other embodiments, the second base station determines the length of the terminal identifier carried in the paging message. If the length of the terminal identifier is 24 bits, and the second base station determines that the terminal identifier carried in the paging message is an I-RNTI, the second base station uses legacy paging to page the terminal based on the I-RNTI. If the length of the terminal identifier is less than 24 bits, and the second base station determines that the terminal identifier carried in the paging message is a new terminal identifier for WUS paging, the second base station uses WUS paging to page the terminal based on the new terminal identifier.

[0137] In other implementations, the second base station determines whether to use the WUS paging method or the legacy paging method based on configuration information stored by the second base station.

[0138] In other embodiments, the second base station determines whether to use the WUS paging method or the legacy paging method based on the paging capability of the second base station. For example, if the second base station supports WUS paging of the terminal, the second base station uses WUS paging of the terminal based on the new terminal identifier. If the second base station does not support WUS paging of the terminal, the second base station uses the legacy paging method based on the terminal's I-RNTI to page the terminal.

[0139] For another example, if the second base station's WUS paging function is activated, the second base station uses WUS paging based on the new terminal identifier. If the second base station's WUS paging function is not activated or invalid, the second base station uses legacy paging based on the terminal's I-RNTI.

[0140] Step S370: The terminal receives the WUS.

[0141] The WUS received by the terminal may come from the first base station or the second base station, which is not limited in this embodiment. For example, if the terminal remains within the first cell covered by the first base station from the time it is released to the inactive state by the first base station to the time it is paged by the first base station, the terminal receives a WUS from the first base station. If the terminal moves from the first cell covered by the first base station to the second cell covered by the second base station from the time it is released to the inactive state by the first base station to the time it is paged by the first base station, the terminal receives a WUS from the second base station.

[0142] Step S380: The terminal determines that the WUS carries the new terminal identifier of the terminal, and generates a paging response based on the new terminal identifier, where the paging response includes the new terminal identifier.

[0143] In some implementations, the terminal determines the type of paging the terminal is monitoring. If the type of paging the terminal is monitoring is WUS paging, the terminal monitors the WUS and determines whether the terminal identifier indicated by the WUS is the new terminal identifier received in step S332. If the terminal identifier indicated by the WUS is the new terminal identifier received in step S332, the terminal determines that the terminal is being paged and generates a paging response.

[0144] Step S390: The terminal sends a paging response.

[0145] For example, if it is determined that the WUS is from the first base station, the terminal sends a paging response to the first base station; if it is determined that the WUS is from the second base station, the terminal sends a paging response to the second base station.

[0146] Since the paging response carries the terminal identifier, it is equivalent to informing the base station that the paging message it previously sent has been responded to by the terminal, reducing the overhead caused by the base station repeatedly paging the same terminal.

[0147] In some implementations, the paging response sent by the terminal is message 3 (message 3), and message 3 includes a new terminal identifier.

[0148] The embodiment shown in FIG4 above illustrates the implementation process of allocating a new terminal identifier, and the embodiment shown in FIG5 below illustrates the implementation process of truncating the I-RNTI. The embodiment shown in FIG5 below and the parts that are the same or similar to those shown in FIG4 can be referenced to each other. The following embodiment focuses on the differences from the above embodiment.

[0149] Referring to Figure 5, Figure 5 shows a schematic flow chart of a communication method provided by an embodiment of the present application. The process shown in Figure 5 is interactively executed by a terminal, a first base station, and a second base station. The process shown in Figure 5 includes the following steps.

[0150] Step S410: The terminal sends a capability identifier to the first base station.

[0151] By sending the capability identifier, the terminal reports the receiving capability of supporting WUS paging to the first base station, so that the first base station perceives that the terminal can receive WUS including the new terminal identifier, triggering the first base station to instruct the I-RNTI to be truncated for use.

[0152] Step S420: The first base station generates an interception indication.

[0153] In some implementations, when the first base station releases the terminal to the inactive state, the first base station generates an intercept indication.

[0154] The interception indication is used to instruct to intercept the I-RNTI of the terminal to obtain the terminal identity for WUS paging. The interception indication may also be called a truncation indication.

[0155] In some implementations, the interception indication is used to indicate intercepting the rightmost k bits of the terminal's I-RNTI as a new terminal identifier for WUS paging, where k represents the number of intercepted bits and also represents the length of the new terminal identifier, and k is greater than 1.

[0156] In some implementations, the interception indication is used to indicate that the leftmost k bits of the I-RNTI of the terminal are intercepted as a new terminal identifier for WUS paging, where k is greater than 1.

[0157] In some further implementations, the interception indication is used to indicate that k middle bits of the I-RNTI of the terminal are intercepted as a new terminal identifier for WUS paging, where k is greater than 1.

[0158] By instructing to truncate the I-RNTI for use, the existing I-RNTI can be reused to implement an identifier dedicated to WUS paging without sending a new terminal identifier to the terminal, thereby reducing the signaling overhead generated by transmitting the new terminal identifier between the terminal and the first base station.

[0159] The terminal identifier is used to page the terminal based on the wake-up signal WUS, and the length of the terminal identifier is smaller than the length of the I-RNTI of the terminal.

[0160] Step S430: The first base station sends an interception instruction to the terminal.

[0161] In some embodiments, the interception indication includes an interception rule. The interception rule is used to indicate a method for intercepting an identifier for WUS paging from the I-RNTI. The interception rule includes parameters based on which the identifier for WUS paging is intercepted from the I-RNTI. Exemplarily, the interception rule includes at least one of an interception position and / or a number of intercepted bits. By sending the interception rule to the terminal, the first base station makes the method for intercepting the identifier for WUS paging from the I-RNTI more flexible and variable.

[0162] The interception position refers to the position in the I-RNTI used to intercept the WUS paging identifier. For example, the interception position includes a starting interception position and an ending interception position.

[0163] The starting interception position is used to indicate the bit identifier in the I-RNTI that corresponds to the starting bit in the new terminal identifier. For example, the starting interception position is the bit index of the first bit of the new terminal identifier (the identifier used for WUS paging) in the I-RNTI. For example, if the starting interception position is m, it indicates that the new terminal identifier is intercepted starting from the mth bit in the I-RNTI. m can be any bit in the I-RNTI.

[0164] The end cutoff position is used to indicate a bit identifier corresponding to the last bit in the identifier of the new terminal in the I-RNTI.

[0165] The number of bits truncated refers to the number of bits in the I-RNTI that are truncated to form the identifier used for WUS paging. The number of bits truncated also refers to the number of bits in the identifier used for WUS paging. For example, if the number of bits truncated is k, it means that the length of the terminal identifier used for WUS paging is k bits.

[0166] In some implementations, the truncation rule includes truncating k bits from the rightmost side of the I-RNTI as the terminal identifier. For example, the truncation rule includes truncating 20 bits from the rightmost side of the I-RNTI as the terminal identifier, indicating that bits 5 to 24 of the I-RNTI are truncated as the identifier for WUS paging.

[0167] In other embodiments, the interception indication does not include an interception rule. For example, the interception indication is an operation code corresponding to the interception operation. For another example, if the interception indication is 1, it means that the I-RNTI of the terminal is intercepted to obtain the terminal identifier for WUS paging.

[0168] In some implementations, the first base station generates an RRC release message based on the interception rule, the RRC release message including the interception rule, and the first base station sends the RRC release message to the terminal, thereby delivering the interception rule to the terminal through the RRC release message.

[0169] Step S432: The terminal receives an interception instruction from the first base station.

[0170] In some implementations, the terminal receives an RRC release message, and based on the RRC release message, the terminal switches the state of the terminal to an inactive state; and the terminal obtains an interception indication carried in the RRC release message.

[0171] In step S434, the terminal intercepts a new terminal identifier from the I-RNTI of the terminal based on the interception instruction, and the length of the new terminal identifier is shorter than the length of the I-RNTI of the terminal.

[0172] For example, the terminal intercepts the rightmost k bits of the terminal's I-RNTI as the new terminal identifier; another example, the terminal intercepts the leftmost k bits of the terminal's I-RNTI as the new terminal identifier; another example, the terminal intercepts the middle k bits of the terminal's I-RNTI as the new terminal identifier.

[0173] In some implementations, the terminal obtains the interception rule carried in the interception indication, and the terminal intercepts a new terminal identifier from the I-RNTI of the terminal according to the interception position and / or the number of intercepted bits in the interception rule.

[0174] Exemplarily, the interception position in the interception indication is the mth bit, the number of intercepted bits is k, the terminal starts from the mth bit in the I-RNTI, intercepts k bits, and uses the mth bit to the (m+k-1)th bit in the I-RNTI as the new terminal identifier.

[0175] Exemplarily, the starting interception position in the interception indication includes the mth bit, and the ending cutoff position is the nth bit. The terminal starts intercepting from the mth bit in the I-RNTI until the interception of the nth bit in the I-RNTI ends, and uses the mth bit to the nth bit in the I-RNTI as the new terminal identifier.

[0176] In other embodiments, the interception indication itself does not include an interception rule, and the terminal intercepts a new terminal identifier from the terminal's I-RNTI according to the interception rule pre-stored by the terminal. For example, the interception rule is provided by a standard protocol. In another example, the interception rule is one of multiple candidate values ​​in a table configured by the first base station. In another example, the interception rule is determined by negotiation between the terminal and the first base station.

[0177] Step S440: When paging a terminal in an inactive state, the first base station intercepts a new terminal identifier from the I-RNTI of the terminal based on the interception indication, and generates a WUS based on the new terminal identifier.

[0178] This embodiment is described by taking the base station using the WUS paging method as an example. In other implementations, the base station uses the legacy paging method, and the base station uses the legacy paging method to page the terminal based on the I-RNTI of the terminal.

[0179] Step S450: The first base station sends a WUS to the terminal.

[0180] Step S460: The first base station generates a paging message.

[0181] The paging message indicates that the terminal is paged based on the terminal identifier intercepted from the I-RNTI of the terminal. The paging message carries an interception indication.

[0182] Step S462: The first base station sends a paging message to the second base station.

[0183] The interception indication sent by the first base station to the second base station is the same as the interception indication sent by the first base station to the terminal in step S430. Since the first base station sends the same interception indication to the terminal and the second base station respectively, the terminal and the second base station can intercept the terminal identifier from the I-RNTI in the same interception method based on the same interception indication, so the new terminal identifiers obtained by the terminal and the second base station are consistent. For example, the first base station sends the same interception position and the same number of bits to the terminal and the second base station respectively, so that the terminal and the second base station intercept the same number of bits from the same position in the I-RNTI and obtain the same terminal identifier for WUS paging. Then, when the terminal moves to the coverage area of ​​the second base station, the terminal can still receive the WUS from the second base station based on the truncation indication received in advance from the first base station, and is successfully awakened by the second base station.

[0184] Optionally, the paging message sent by the first base station includes not only the interception indication but also the I-RNTI of the terminal.

[0185] Optionally, the paging message sent by the first base station includes not only the interception indication but also a paging type, where the paging type is used to indicate a WUS-based paging terminal.

[0186] In some implementations, the first base station sends a paging message to the second base station via Xn signaling, where the Xn signaling carries an interception indication.

[0187] Step S464: The second base station receives a paging message from the first base station.

[0188] Step S466: The second base station intercepts a new terminal identifier from the I-RNTI of the terminal based on the interception indication carried in the paging message.

[0189] Step S467: The second base station generates a WUS based on the new terminal identifier.

[0190] Step S468: The second base station sends a WUS to the terminal.

[0191] Step S470: The terminal receives the WUS.

[0192] Step S472: The terminal determines that the WUS carries the new terminal identifier of the terminal, and generates a paging response, where the paging response includes the new terminal identifier.

[0193] Step S474: The terminal sends a paging response.

[0194] Figure 6 is an example of the composition of an electronic device provided in an embodiment of the present application. The electronic device can be provided as a first base station, a second base station or a terminal. Taking the electronic device provided as a base station as an example, Figure 6 shows a simplified schematic diagram of the base station structure. The base station includes parts 610, 620 and 630. Part 610 is mainly used for baseband processing, controlling the base station, etc.; Part 610 is usually the control center of the base station, which can usually be called a processor, which is used to control the base station to perform the processing operations on the base station side in the above method embodiment. Part 620 is mainly used to store computer program code and data. Part 630 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals; Part 630 can usually be called a transceiver module, a transceiver, a transceiver circuit, or a transceiver, etc. The transceiver module of part 630 can also be called a transceiver or a transceiver, etc., which includes an antenna 633 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing. Alternatively, the device for implementing the receiving function in section 630 may be considered a receiver, and the device for implementing the transmitting function may be considered a transmitter, that is, section 630 includes a receiver 632 and a transmitter 631. The receiver may also be referred to as a receiving module, a receiver, or a receiving circuit, and the transmitter may be referred to as a transmitting module, a transmitter, or a transmitting circuit.

[0195] Sections 610 and 620 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If multiple boards are present, the boards may be interconnected to enhance processing capabilities. As an optional implementation, multiple boards may share one or more processors, multiple boards may share one or more memories, or multiple boards may simultaneously share one or more processors.

[0196] For example, in one implementation, the transceiver module in section 630 is used to execute the transceiver-related processes executed by the base station in the aforementioned method embodiment. The processor in section 610 is used to execute the processing-related processes executed by the base station in the aforementioned method embodiment.

[0197] It should be understood that FIG6 is merely an example and not a limitation, and the network device including the processor, memory, and transceiver may not rely on the structure shown in FIG6 .

[0198] Figure 7 is an example of the composition of another electronic device provided in an embodiment of the present application. The electronic device can be provided as a first base station, a second base station or a terminal. Taking the electronic device as a terminal as an example, the terminal includes but is not limited to electronic devices such as mobile phones and smart wearable devices (such as smart watches). Taking a mobile phone as an example, the electronic device may include a processor 310, an external memory interface 320, an internal memory 321, a display screen 330, a camera 340, an antenna 1, an antenna 2, a mobile communication module 350, and a wireless communication module 360, etc.

[0199] It should be understood that the structure illustrated in this embodiment does not constitute a specific limitation on the electronic device. In other embodiments, the electronic device may include more or fewer components than shown, or some components may be combined or separated, or the components may be arranged differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0200] The processor 310 may include one or more processing units. For example, the processor 310 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU). The different processing units may be independent devices or integrated into one or more processors.

[0201] It is understood that the interface connection relationship between the modules illustrated in this embodiment is only a schematic illustration and does not constitute a structural limitation of the electronic device. In other embodiments of the present application, the electronic device may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.

[0202] External memory interface 320 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device. The external memory card communicates with processor 310 via external memory interface 320 to implement data storage functions. For example, files such as music and videos can be stored on the external memory card.

[0203] The internal memory 321 can be used to store computer executable program code, and the executable program code includes instructions. The processor 310 executes various functional applications and data processing of the electronic device by running the instructions stored in the internal memory 321. The internal memory 321 may include a program storage area and a data storage area. Among them, the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc. The data storage area can store data created during the use of the electronic device (such as audio data, a phone book, etc.), etc. In addition, the internal memory 321 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc. The processor 310 executes various functional applications and data processing of the electronic device by running the instructions stored in the internal memory 321, and / or the instructions stored in the memory provided in the processor.

[0204] The wireless communication function of the electronic device can be implemented through antenna 1, antenna 2, mobile communication module 350, wireless communication module 360, modem processor and baseband processor.

[0205] Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in an electronic device can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In other embodiments, the antennas can be used in conjunction with a tuning switch.

[0206] The mobile communication module 350 can provide solutions for wireless communications including 2G / 3G / 4G / 5G applied to electronic devices. The mobile communication module 350 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 350 can receive electromagnetic waves from the antenna 1, and filter, amplify, and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 350 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 350 can be set in the processor 310. In some embodiments, at least some of the functional modules of the mobile communication module 350 can be set in the same device as at least some of the modules of the processor 310.

[0207] In some embodiments, the electronic device initiates or receives a call request via the mobile communication module 350 and the antenna 1 .

[0208] Furthermore, an operating system runs on the aforementioned components, such as the iOS operating system, the Android operating system, and the Windows operating system. Application programs can be installed and run on the operating system. Those skilled in the art will clearly understand that, for ease of description and brevity, the explanation and beneficial effects of any of the aforementioned electronic devices can be referred to the corresponding method embodiments provided above, and will not be further elaborated here.

[0209] The present application also provides a communication system, which may include electronic devices as shown in FIG6 (for example, network devices such as a first base station and a second base station) and electronic devices as shown in FIG7 (for example, terminals such as mobile phones).

[0210] In this application, a terminal or network device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also known as main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as the Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

[0211] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0212] A refers to B, which means that A is the same as B or A is a simple variant of B.

[0213] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems, devices and modules can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0214] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or module, which can be electrical, mechanical or other forms.

[0215] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules may be selected to achieve the purpose of the present embodiment according to actual needs.

[0216] In addition, the functional modules in the various embodiments of the present application may be integrated into a processing module, or each module may exist physically separately, or two or more modules may be integrated into a single module. The above-mentioned integrated modules may be implemented in the form of hardware or software functional modules.

[0217] If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the part that essentially contributes to the technical solution of the present application or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the process of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

[0218] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A communication method, characterized in that, The method includes: The first base station allocates a terminal identifier to the terminal, where the terminal identifier is used to page the terminal based on the Wake-Up Signal (WUS), and the length of the terminal identifier is less than the length of the initial random access radio network temporary identifier (I-RNTI) of the terminal; The first base station sends the terminal identifier to the terminal; When paging the terminal in the inactive state, the first base station generates a WUS based on the terminal identifier, and the WUS carries the terminal identifier; The first base station sends the WUS to the terminal.

2. The method according to claim 1, characterized in that, The first base station sending the terminal identifier to the terminal includes: The first base station generates a Radio Resource Control (RRC) release message, and the RRC release message carries the terminal identifier; The first base station sends the RRC release message to the terminal.

3. The method according to claim 1, wherein The first base station is an anchor base station, and the method further includes: When paging the terminal in the inactive state, the first base station sends a paging message to a second base station, where the second base station is another base station adjacent to the first base station, and the paging message carries the terminal identifier.

4. The method according to claim 3, wherein The first base station sending the paging message to the second base station includes: The first base station sends an Xn signaling to the second base station, and the Xn signaling carries the paging message.

5. The method according to claim 1, wherein The first base station allocating a terminal identifier to the terminal includes: The first base station intercepts at least one bit from the rightmost side of the I-RNTI of the terminal to obtain the terminal identifier.

6. The method according to claim 1, wherein Before the first base station allocates a terminal identifier to the terminal, the method further includes: The first base station receives a capability identifier from the terminal, and the capability identifier indicates that the terminal supports paging the terminal based on the Wake-Up Signal (WUS).

7. A communication method, characterized in that, The method includes: The second base station receives a paging message from the first base station, where the second base station is another base station adjacent to the first base station, the paging message carries a terminal identifier, and the terminal identifier is used to page the terminal based on the Wake-Up Signal (WUS); The second base station generates a WUS based on the terminal identifier, and the WUS carries the terminal identifier; The second base station sends the WUS to the terminal.

8. The method according to claim 7, wherein The length of the terminal identifier is less than the length of the I-RNTI of the terminal.

9. A communication method, characterized in that, The method includes: The terminal receives a terminal identifier from the first base station, where the terminal identifier is used to page the terminal based on the Wake-Up Signal (WUS), and the length of the terminal identifier is less than the length of the I-RNTI of the terminal; The terminal receives a WUS from the first base station, and the WUS carries the terminal identifier; The terminal sends a paging response to the first base station, and the paging response carries the terminal identifier.

10. The method according to claim 9, characterized in that, The terminal receiving the WUS from the first base station includes: The terminal receives a Radio Resource Control (RRC) release message from the first base station, and the RRC release message carries the terminal identifier.

11. The method according to claim 9, characterized in that The terminal sending the paging response to the base station includes: The terminal sends a message 3 to the base station, and the message 3 includes the terminal identifier.

12. A communication method, characterized in that, The method includes: The first base station generates an interception indication for indicating intercepting the initial random access radio network temporary identity (I-RNTI) of a terminal to obtain a terminal identity, where the terminal identity is used to page the terminal based on a wake-up signal (WUS), and the length of the terminal identity is less than the length of the I-RNTI of the terminal. When the first base station releases the terminal to the inactive state, the first base station sends the interception indication to the terminal. When paging the terminal in the inactive state, the first base station generates a WUS based on the terminal identity, and the WUS carries the terminal identity.

13. The method according to claim 12, wherein The interception indication includes an interception rule, and the interception rule includes at least one of an interception position or / and the number of intercepted bits.

14. The method according to claim 13, characterized in that, The interception rule includes intercepting k bits from the rightmost side of the I-RNTI as the terminal identity, where k is greater than 1.

15. The method according to claim 12, wherein The first base station sending the interception indication to the terminal includes: When the first base station releases the terminal to the inactive state, the first base station sends the interception indication to the terminal.

16. The method according to claim 15, wherein The first base station sending the interception indication to the terminal includes: The first base station generates a radio resource control (RRC) release message, and the RRC release message carries the interception indication. The first base station sends the RRC release message to the terminal.

17. The method according to claim 12, wherein The first base station is an anchor base station, and the method further includes: When paging the terminal in the inactive state, the first base station sends a paging message to a second base station, where the second base station is another base station adjacent to the first base station, and the paging message carries the interception indication.

18. A communication method, characterized in that, The method includes: The second base station receives a paging message from the first base station, where the second base station is another base station adjacent to the first base station, and the paging message includes a terminal identity for paging the terminal based on a wake-up signal (WUS). The second base station intercepts the terminal identity from the I-RNTI of the terminal based on the interception indication, and the length of the terminal identity is less than the length of the I-RNTI of the terminal. The second base station generates a WUS based on the terminal identity, and the WUS carries the terminal identity. The second base station sends the WUS to the terminal.

19. The method according to claim 18, wherein The interception indication includes an interception rule, and the interception rule includes at least one of an interception position or / and the number of intercepted bits. The second base station intercepting the terminal identity from the I-RNTI of the terminal based on the interception indication includes: The second base station intercepts the bits corresponding to the number of bits at the interception position in the I-RNTI of the terminal to obtain the terminal identity.

20. A communication method, characterized in that, The method includes: The terminal receives an interception indication from the first base station, where the interception indication is used to indicate intercepting the initial random access radio network temporary identity (I-RNTI) of the terminal to obtain a terminal identity, and the terminal identity is used to page the terminal based on a wake-up signal (WUS). The terminal intercepts the terminal identity from the I-RNTI of the terminal based on the interception indication, and the length of the terminal identity is less than the length of the I-RNTI of the terminal. The terminal receives a WUS from a first base station, and the WUS carries the terminal identifier; The terminal sends a paging response to the first base station, and the paging response includes the terminal identifier.

21. The method according to claim 20, characterized in that, The interception indication includes an interception rule, and the interception rule includes at least one of an interception position or / and the number of bits to be intercepted. Based on the interception indication, the terminal intercepts the terminal identifier from the I-RNTI of the terminal, including: The terminal intercepts the bits corresponding to the number of bits at the interception position in the I-RNTI of the terminal to obtain the terminal identifier.

22. The method according to claim 20, wherein The terminal receives an interception indication from a first base station, including: The terminal receives a radio resource control (RRC) release message from the first base station, and the RRC release message carries the interception indication.

23. An electronic device, characterized in that, The electronic device includes: A memory for storing computer programs or computer instructions; A processor for executing the computer programs or computer instructions stored in the memory, so that the electronic device executes the method according to any one of claims 1 to 22.

24. A communication system, characterized in that, The system includes at least one base station and a terminal, and the system is used to execute the method according to any one of claims 1 to 22.

25. A computer storage medium for storing a computer program, which when executed, is used to implement the method according to any one of claims 1 to 22.

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