WO2022141291A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2022141291A1
WO2022141291A1 PCT/CN2020/141792 CN2020141792W WO2022141291A1 WO 2022141291 A1 WO2022141291 A1 WO 2022141291A1 CN 2020141792 W CN2020141792 W CN 2020141792W WO 2022141291 A1 WO2022141291 A1 WO 2022141291A1
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WIPO (PCT)
Prior art keywords
cell
frequency point
terminal device
reselection
frequency
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PCT/CN2020/141792
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English (en)
Chinese (zh)
Inventor
陈晓华
陈洪强
韩磊
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2020/141792 priority Critical patent/WO2022141291A1/fr
Priority to CN202080105051.4A priority patent/CN116325916A/zh
Publication of WO2022141291A1 publication Critical patent/WO2022141291A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a communication method and apparatus.
  • the terminal device may need to perform cell reselection during high-speed movement, so that the terminal device can reselect from the current cell to another cell with better service quality.
  • HSDN high-speed dedicated network
  • the present application provides a communication method and apparatus for realizing reselection to an HSDN cell when the mobile state of a terminal device is in a high-speed state.
  • the embodiments of the present application provide a communication method, which is used to implement functions on the terminal device side.
  • the method may be applied to a terminal device or a chip in the terminal device, and the embodiments of the present application are not limited to the specifics of the method. executor.
  • the terminal device receives reselection configuration information from a serving cell, where the reselection configuration information includes a first frequency point corresponding to the serving cell, a The second frequency point corresponding to the neighboring cell, and the first indication information, where the first indication information is used to indicate that the cell corresponding to the second frequency point includes a high-speed private network HSDN cell; wherein, the reselection of the second frequency point The priority is lower than or equal to the reselection priority of the first frequency point; when the mobile state of the terminal device is a high-speed state, measure the cell corresponding to the second frequency point; and, according to the first frequency point The measurement result of the cell corresponding to the second frequency point is reselected to the cell corresponding to the second frequency point.
  • the second frequency point with the same priority or low priority includes an HSDN cell
  • the second frequency point can be measured, thereby facilitating the terminal equipment to reselect to the first frequency point.
  • the HSDN cell corresponding to the second frequency point improves the user experience.
  • the reselection configuration information further includes second indication information, and the second indication information is used to measure the conditions of the cell corresponding to the second frequency point; when the mobile state of the terminal equipment is in the high-speed state, the Performing measurement on the cell corresponding to the second frequency point includes: acquiring the measurement result of the serving cell; if the measurement result of the serving cell does not meet the conditions for measuring the cell corresponding to the second frequency point, when the When the mobile state of the terminal equipment is a high speed state, the cell corresponding to the second frequency point is measured.
  • the measurement result of the serving cell does not meet the conditions for measuring the cell corresponding to the second frequency point, including: the first signal quality indicator value corresponding to the measurement result of the serving cell is greater than the first threshold, And the second signal quality indicator value corresponding to the measurement result of the serving cell is greater than the second threshold.
  • the first signal quality indicator value corresponding to the measurement result of the serving cell may be Srxlev of the serving cell, and the second signal quality indicator value corresponding to the measurement result of the serving cell may be Squal of the serving cell.
  • the method before measuring the cell corresponding to the second frequency point, the method further includes: adjusting the reselection priority of the second frequency point from the first priority to the second priority, so that The second priority is higher than the reselection priority of the first frequency point.
  • the cell corresponding to the second frequency point includes a first cell, and the first cell belongs to the HSDN cell; according to the measurement result of the cell corresponding to the second frequency point, the The cell corresponding to the second frequency point includes: reselection to the first cell if the measurement result of the first cell satisfies the first reselection condition.
  • the reselection priority of the first cell is the second priority.
  • the cell corresponding to the second frequency point further includes a second cell, and the second cell does not belong to the HSDN cell; according to the measurement result of the cell corresponding to the second frequency point, reselect the The cell corresponding to the second frequency point includes: when the measurement result of the first cell does not meet the first reselection condition, if the measurement result of the second cell satisfies the second reselection condition, re-selection The second cell is selected.
  • the reselection priority of the second cell is the first priority.
  • the serving cell belongs to an HSDN cell, or the serving cell does not belong to an HSDN cell.
  • the second frequency point is an inter-frequency frequency point or an inter-system frequency point of the first frequency point.
  • the method further includes: when it is detected that the terminal device is in a network loss state, determining whether the mobile state of the terminal device is in a mobile state according to the speed measured by a speed sensor in the terminal device. for high speed state.
  • the terminal device When the terminal device is in the state of network loss, if the terminal device performs cell reselection, the number of cells to be reselected by the terminal device may not be updated in time, which in turn leads to the determination of the number of cells to be reselected within the set time.
  • the movement status is not accurate enough. Therefore, using the above method to determine whether the moving state of the terminal device is a high-speed state according to the speed measured by the speed sensor can effectively improve the accuracy of the determined moving state.
  • determining whether the moving state of the terminal device is a high-speed state according to the speed measured by the speed sensor in the terminal device includes: according to the speed measured by the speed sensor in the terminal device , to obtain the filtered speed; if the filtered speed is greater than the speed threshold, it is determined that the moving state of the terminal device is a high-speed state.
  • an embodiment of the present application provides a communication device, where the communication device may be a terminal device or a chip that can be provided inside the terminal device.
  • the communication device has the function of implementing the first aspect.
  • the communication device includes modules or units or means (means) corresponding to the steps involved in executing the first aspect, and the functions, units or means may be implemented by software. , or implemented by hardware, or by executing corresponding software by hardware.
  • the communication device includes a processing unit and a communication unit, wherein the communication unit can be used to send and receive signals to realize communication between the communication device and other devices, for example, the communication unit is used to receive data from Configuration information of the access network equipment; the processing unit can be used to perform some internal operations of the communication device.
  • the functions performed by the processing unit and the communication unit may correspond to the operations involved in the first aspect above.
  • the communication apparatus includes a processor, and may also include a transceiver, where the transceiver is used for transmitting and receiving signals, and the processor utilizes the transceiver to complete any possible implementation of the first aspect above.
  • the communication apparatus may further include one or more memories, where the memories are configured to be coupled with the processor, and the memories may store computer programs or instructions for implementing the functions involved in the first aspect above.
  • the processor may execute computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, cause the communication apparatus to implement the method in any possible design or implementation manner of the first aspect.
  • the communication device includes a processor, which may be operative to couple with the memory.
  • the memory may store computer programs or instructions that implement the functions involved in the first aspect above.
  • the processor may execute computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, cause the communication apparatus to implement the method in any possible design or implementation manner of the first aspect.
  • the communication device includes a processor and an interface circuit, wherein the processor is configured to communicate with other devices through the interface circuit, and execute the method in any possible design or implementation of the first aspect above .
  • an embodiment of the present application provides a computer-readable storage medium, where computer-readable instructions are stored in the computer storage medium, and when the computer reads and executes the computer-readable instructions, the computer executes the first any possible design method of the aspect.
  • an embodiment of the present application provides a computer program product that, when a computer reads and executes the computer program product, causes the computer to execute the method in any possible design of the first aspect above.
  • an embodiment of the present application provides a chip, where the chip includes a processor, and the processor is coupled to a memory for reading and executing a software program stored in the memory, so as to implement the above-mentioned first aspect. method in any possible design.
  • FIG. 1 is a schematic diagram of a network architecture to which an embodiment of the present application is applicable;
  • FIG. 2 is a schematic diagram of another network architecture to which the embodiments of the present application are applicable;
  • FIG. 3 is a schematic diagram of another network architecture to which the embodiment of the present application is applicable.
  • FIG. 4 is a schematic diagram of a rule for starting neighbor cell measurement according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart corresponding to the wireless communication method provided in Embodiment 1 of the present application.
  • FIG. 6 is a schematic flowchart corresponding to the wireless communication method provided in Embodiment 2 of the present application.
  • FIG. 7 is a possible exemplary block diagram of the apparatus involved in the embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • Terminal device It can be a wireless terminal device that can receive the scheduling and instruction information of access network devices.
  • the wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function. , or other processing device connected to the wireless modem.
  • Terminal equipment can communicate with one or more core networks or the Internet via a radio access network (RAN), and the terminal equipment can be a mobile terminal equipment, such as a mobile phone (or "cellular" phone, mobile phone (mobile phone), computer and data cards, for example, may be portable, pocket-sized, hand-held, computer built-in or vehicle mounted mobile devices that exchange language and/or data with the radio access network.
  • RAN radio access network
  • Wireless terminal equipment may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station (MS), a remote station, an access point ( access point (AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), subscriber station (SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc.
  • the terminal device may also be a wearable device and a next-generation communication system, for example, a terminal device in a 5G communication system or a terminal device in a future evolved public land mobile network (PLMN).
  • PLMN public land mobile network
  • Access network device It can be a device in a wireless network.
  • an access network device can be a radio access network (RAN) node (or device) that accesses the terminal device to the wireless network, and Can be called a base station.
  • RAN equipment are: generation Node B (gNodeB), transmission reception point (TRP), evolved Node B (evolved Node B, eNB), wireless network in the 5G communication system Controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved Node B , or home Node B, HNB), base band unit (base band unit, BBU), or wireless fidelity (wireless fidelity, Wi-Fi) access point (access point, AP), etc.
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • the access network device may include a centralized unit (centralized unit, CU) node, or a distributed unit (distributed unit, DU) node, or a RAN device including a CU node and a DU node.
  • the access network equipment may be other apparatuses that provide wireless communication functions for the terminal equipment.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the access network device. For convenience of description, in this embodiment of the present application, a device that provides a wireless communication function for a terminal device is referred to as an access network device.
  • system and “network” in the embodiments of the present application may be used interchangeably.
  • At least one means one or more, and “plurality” means two or more.
  • And/or which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can mean: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • At least one of A, B and C includes A, B, C, AB, AC, BC or ABC.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, sequence, priority or importance of multiple objects degree.
  • FIG. 1 is a schematic diagram of a network architecture to which an embodiment of the present application is applied.
  • a terminal device can access a wireless network to obtain services from an external network (eg, the Internet) through the wireless network, or communicate with other devices through the wireless network, such as communicating with other terminal devices.
  • the wireless network includes a RAN and a core network (core network, CN), wherein the RAN is used for connecting terminal equipment (such as the terminal equipment 130) to the wireless network, and the CN is used for managing the terminal equipment and providing communication with the external network. gateway.
  • core network CN
  • the RAN may include one or more RAN devices, such as RAN device 1101 and RAN device 1102 .
  • One or more CN devices may be included in the CN.
  • the CN device 120 may include an access and mobility management function (AMF) entity, a session management function (SMF) entity, User plane function (user plane function, UPF) entity, etc.
  • AMF access and mobility management function
  • SMF session management function
  • UPF User plane function
  • the transmission link from the terminal equipment to the RAN equipment can be denoted as uplink (UL), and the transmission link from the RAN equipment to the terminal equipment
  • the link is denoted as downlink (DL).
  • data transmission in the uplink may be abbreviated as uplink data transmission or uplink transmission
  • data transmission in the downlink may be abbreviated as downlink data transmission or downlink transmission.
  • RAN devices can provide communication coverage for specific geographic areas through integrated or external antenna devices. One or more terminal devices located within the communication coverage of the RAN device can access the RAN device.
  • a RAN device can manage one or more cells (cells), and each cell has an identity certificate (identification), which is also called a cell identity (cell identity, cell ID). From the perspective of radio resources, a cell is a combination of downlink radio resources and paired uplink radio resources (optional).
  • identity identity
  • a cell is a combination of downlink radio resources and paired uplink radio resources (optional).
  • Terminal equipment and RAN equipment should be aware of the predefined configuration of the network architecture, including the radio access technology (RAT) supported by the system and the radio resource configuration specified by the system, such as the basic configuration of the radio frequency band and carrier.
  • the carrier is a frequency range specified by the system, and this frequency range can be determined by the center frequency of the carrier (also called the carrier frequency) and the bandwidth of the carrier.
  • the pre-defined configurations of these systems can be part of standard protocols of the wireless communication system or determined through interaction between terminal equipment and RAN equipment.
  • the content of the relevant standard protocol may be pre-stored in the memory of the terminal equipment and the RAN equipment, or embodied as hardware circuits or software codes of the terminal equipment and the RAN equipment.
  • each device in the communication system shown in FIG. 1 is only for illustration, and the embodiments of the present application are not limited to this. In practical applications, the communication system may also include more terminal devices and more RAN devices. Other devices may also be included.
  • FIG. 2 is a schematic diagram of another network architecture to which this embodiment of the present application is applied.
  • the network architecture includes CN equipment, RAN equipment and terminal equipment.
  • the RAN equipment includes a baseband device and a radio frequency device, where the baseband device can be implemented by one node or multiple nodes, and the radio frequency device can be implemented independently from the baseband device, or can be integrated in the baseband device, or some functions Independent integration, some functions are integrated in the baseband device.
  • a RAN device includes a baseband device and a radio frequency device, wherein the radio frequency device can be arranged remotely relative to the baseband device, for example, a remote radio unit (RRU) is a remote radio unit arranged relative to the BBU. unit.
  • RRU remote radio unit
  • the control plane protocol layer structure may include a radio resource control (RRC) layer, a packet data convergence protocol (packet data convergence protocol, PDCP) layer. , radio link control (radio link control, RLC) layer, media access control (media access control, MAC) layer and physical layer and other protocol layer functions; user plane protocol layer structure can include PDCP layer, RLC layer, MAC layer
  • RRC radio resource control
  • RLC radio link control
  • MAC media access control
  • user plane protocol layer structure can include PDCP layer, RLC layer, MAC layer
  • SDAP service data adaptation protocol
  • a RAN device may implement the functions of protocol layers such as RRC, PDCP, RLC, and MAC by one node, or may implement the functions of these protocol layers by multiple nodes.
  • a RAN device may include a CU) and a DU, and multiple DUs may be centrally controlled by one CU.
  • the CU and DU can be divided according to the protocol layers of the wireless network. For example, the functions of the PDCP layer and above are set in the CU, and the functions of the protocol layers below PDCP, such as the RLC layer and the MAC layer, are set in the DU.
  • this protocol layer is only an example, and it can also be divided at other protocol layers, for example, at the RLC layer, the functions of the RLC layer and the above protocol layers are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU; Alternatively, in a certain protocol layer, for example, some functions of the RLC layer and functions of the protocol layers above the RLC layer are placed in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are placed in the DU. In addition, it can also be divided in other ways, for example, by time delay, the functions whose processing time needs to meet the delay requirements are set in the DU, and the functions that do not need to meet the delay requirements are set in the CU.
  • radio frequency device may be integrated independently, not placed in the DU, may also be integrated in the DU, or partially remote and partially integrated in the DU, which is not limited herein.
  • FIG. 3 is a schematic diagram of another network architecture to which this embodiment of the present application is applied.
  • the control plane (CP) and user plane (UP) of the CU can also be separated and divided into different entities for implementation, namely the control plane (CP) CU entity ( That is, the CU-CP entity) and the user plane (user plane, UP) CU entity (that is, the CU-UP entity).
  • CP control plane
  • UP user plane
  • the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the terminal device can be sent to the CU through the DU.
  • the DU may not parse the signaling, but directly encapsulate it through the protocol layer and transparently transmit it to the terminal device or CU.
  • the sending or receiving of the signaling by the DU includes this scenario.
  • the signaling of the RRC or PDCP layer is finally processed as the signaling of the PHY layer and sent to the terminal device, or is converted from the received signaling of the PHY layer.
  • the signaling of the RRC or PDCP layer can also be considered to be sent by the DU, or sent by the DU and radio frequency loading.
  • the network architecture shown in Figure 1, Figure 2 or Figure 3 can be applied to communication systems of various RATs, such as 4G (or long term evolution (LTE)) communication systems, or 5G (or called new radio (NR)) communication system, it can also be a transition system between an LTE communication system and a 5G communication system, and the transition system can also be called a 4.5G communication system, and of course it can be a future Communication Systems.
  • 4G or long term evolution (LTE)
  • 5G new radio
  • NR new radio
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the apparatuses in the following embodiments of the present application may be located in terminal equipment or access network equipment according to the functions implemented by them.
  • the terminal equipment can perform a cell search, and judge whether the measurement results of the searched cells meet the S criterion for cell selection. Once a suitable cell is found, the terminal equipment can stop the cell search, and Camp on the appropriate cell.
  • the measurement result of the cell may include at least one of the following: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), signal to interference plus noise ratio (signal to interference plus noise ratio) , SINR), which is not specifically limited. Satisfying the S criterion may mean that Srxlev>0 and Squal>0 are satisfied, and when the cell satisfies the S criterion, the terminal device can choose to camp on the cell.
  • RSRP reference signal receiving power
  • RSRQ reference signal receiving quality
  • SINR signal to interference plus noise ratio
  • Qrxlevmeas The received signal level value of the cell, such as RSRP.
  • Qrxlevmin The minimum reception level value of the cell.
  • Qrxlevminoffset The minimum received signal level offset value of the cell.
  • Pcompensation The value is max(PMax-UE Maximum Output Power, 0).
  • PMax The maximum transmit power of the terminal equipment allowed by the cell.
  • UE Maximum Output Power The maximum RF output power capability of the terminal device itself.
  • Qqualmeas The received signal quality of the cell, such as RSRQ.
  • Qqualmin The minimum received signal quality value of the cell.
  • Qqualminoffset The minimum received signal quality offset value of the cell.
  • the terminal device 130 When the terminal equipment resides in a certain cell, due to the movement of the terminal equipment or the channel fading at the edge of the cell, the reception quality of the signals from different access network equipment to the terminal equipment is different, which will cause the terminal equipment to replay between different cells. select.
  • the terminal device 130 moves, for example, the terminal device 130 moves from the communication coverage of the access network device 1101 to the communication coverage of the access network device 1102.
  • the terminal device 130 receives the signal received by the access network device 1102.
  • the quality may be better than the receiving quality of the signal of the access network device 1101 received by the terminal device, which may cause the terminal device 130 to reselection from the cell of the access network device 1101 to the cell of the access network device 1102 .
  • the cell reselection process may include two stages, namely, a measurement initiation stage, a measurement result evaluation and a cell reselection stage.
  • the cell reselection priority is a parameter that the terminal device needs to consider first when performing cell reselection.
  • the cell reselection priority may be configured by the network side, for example, it may be notified to the terminal device by means of a serving cell broadcast (ie, a system message of the serving cell).
  • the parameter corresponding to the cell reselection priority may be cellReselectionPriority, and the value range may be 0-7. The larger the value of this parameter is, the higher the reselection priority of all cells on the corresponding frequency point is.
  • the reselection priority of the frequency point can be configured on the network side, the reselection priority of the cell under the frequency point is the reselection priority of the frequency point, and the reselection priority of different frequency points can be same or different.
  • the system message of the serving cell may include system information block (SIB) 3, SIB5, SIB6 to SIB8.
  • SIB3 may include the reselection priority of the same frequency frequency point (that is, the frequency point corresponding to the serving cell)
  • SIB5 may include the reselection priority of the different frequency frequency point
  • SIB6 to SIB8 may include the reselection priority of the different system frequency points priority.
  • the cell reselection priority can also be notified to the terminal device through the RRC connection release message (RRC connection release).
  • RRC connection release When the terminal device receives the RRC connection release message including cellReselectionPriority, the cell reselection priority needs to be based on the configuration in the message, and ignores the reselection priority broadcast in the system message of the serving cell.
  • the cell reselection priority may also be the reselection priority inherited from other RATs.
  • the reselection priority broadcast in the system message of the serving cell may be referred to as the shared reselection priority
  • the RRC connection release message and the reselection priority inherited from other RATs may be referred to as the dedicated reselection priority priority.
  • the shared reselection priority can be used as the current reselection priority of the frequency; and when the terminal device receives the dedicated reselection priority
  • the dedicated reselection priority can be used as the current reselection priority of the frequency point, and the shared reselection priority is ignored.
  • the terminal equipment can obtain the following parameters by receiving the system message of the serving cell: (1) SIntraSearchP: indicates the Srxlev threshold for intra-frequency measurement; (2) SIntraSearchQ: indicates the Squal threshold for intra-frequency measurement; (3) SnonIntraSearchP: indicates the inter-frequency and Srxlev threshold of inter-system measurement; (4) SnonIntraSearchQ: indicates the Squal threshold of inter-frequency and inter-system measurement.
  • SIntraSearchP and SIntraSearchQ can be understood as the same-frequency measurement start threshold
  • SnonIntraSearchP and SnonIntraSearchQ can be understood as non-same-frequency (different frequency or different system) measurement start thresholds.
  • the terminal device After the terminal device successfully camps on the serving cell, it can measure the serving cell to obtain the measurement result of the serving cell. Further, the terminal device may calculate the Srxlev of the serving cell according to the measurement result of the serving cell, and compare the value with the same-frequency/non-same-frequency measurement start threshold as a decision condition for whether to start the neighbor cell measurement.
  • Figure 4 is a schematic diagram of the rules for whether the neighbor cell measurement is started, as shown in Figure 4, including:
  • the terminal device For an inter-frequency or inter-system frequency with a reselection priority higher than that of the frequency corresponding to the serving cell, the terminal device must always measure the inter-frequency or inter-system frequency.
  • the terminal equipment may not perform the same-frequency measurement; otherwise, start the same-frequency measurement.
  • the terminal equipment may not start the measurement of the same or low priority inter-frequency or inter-system frequency; otherwise, start the same or low priority measurement The measurement of different frequency or different system frequency of the level.
  • the reselection algorithms For cells on frequencies with different reselection priorities, the reselection algorithms have obvious differences: the lower the reselection priority, the harsher the reselection conditions, and the smaller the chance of the terminal equipment to reselection to the cell.
  • the reselection conditions of cells with different reselection priorities are described below.
  • the terminal equipment can trigger the procedure of reselection to the neighboring cell.
  • the terminal device does not need to consider the signal quality of the serving cell.
  • the terminal device Reselect to the neighbor cell.
  • the R criterion for cell reselection can be introduced.
  • the R criterion means that the terminal device can calculate the R values of all cells that meet the S criterion, and sort them according to the size of the R values, and the cell ranked first will be regarded as the optimal cell.
  • the R value of the serving cell (represented as Rs) and the R value of the neighboring cell (represented as Rn) are respectively defined as:
  • Qmeas,s RSRP of the serving cell measured by the terminal device.
  • Qhyst The reselection hysteresis value of the serving cell.
  • Qmeas,n RSRP of the neighboring cell measured by the terminal device.
  • Qoffset If the neighbor cell and the serving cell are the same frequency cell, the value is the cell-level offset broadcast in the system message of the serving cell, and the default value is 0; if the neighbor cell and the serving cell are different frequency cells, then This value is the sum of the cell-level offset and carrier frequency offset broadcast in the system message of the serving cell, and the default value is 0.
  • the terminal device can trigger the process of reselection to the neighboring cell.
  • the terminal device can trigger the process of reselection to the neighboring cell.
  • HSDN cells Since high-speed movement of terminal equipment has become a common application scenario, in order to improve user experience, operators can deploy HSDN cells. When the terminal equipment is in a high-speed state, the HSDN cell can provide better services for the terminal equipment than the non-HSDN cell.
  • the coverage of an access network device may include multiple cells, and the multiple cells may all belong to HSDN cells, or the multiple cells may all belong to non-HSDN cells, or the multiple cells may include HSDN cells. cells and non-HSDN cells.
  • the same frequency point may correspond to multiple cells, and the multiple cells may all belong to HSDN cells, or the multiple cells may all belong to non-HSDN cells, or the multiple cells may include HSDN cells and non-HSDN cells.
  • an embodiment of the present application provides a communication method for realizing reselection to an HSDN cell when the mobile state of the terminal device is in the high-speed state.
  • FIG. 5 is a schematic flowchart corresponding to the wireless communication method provided in Embodiment 1 of the present application. As shown in FIG. 5 , the method includes:
  • the access network device sends reselection configuration information to the terminal device on the serving cell of the terminal device.
  • the serving cell may belong to the HSDN cell, or may not belong to the HSDN cell.
  • the access network device may send the reselection configuration information through system messages (such as SIB3, SIB5, SIB6 to SIB8).
  • the reselection configuration information may include a first frequency corresponding to the serving cell, a second frequency corresponding to a neighboring cell of the serving cell, and first indication information, where the first indication information is used to indicate that the cell corresponding to the second frequency includes an HSDN cell.
  • the reselection configuration information may further include second indication information, where the second indication information is used to indicate a condition for measuring the cell corresponding to the second frequency point.
  • the reselection configuration information may also include other possible information, such as other possible frequency points corresponding to neighboring cells of the serving cell, which are not specifically limited.
  • the second frequency point may be an inter-frequency frequency point or an inter-system frequency point of the first frequency point.
  • SIB3 may include the first frequency point and a common reselection priority corresponding to the first frequency point; a certain SIB among SIB5, SIB6 to SIB8 may include the second frequency point and the corresponding reselection priority of the second frequency point
  • the shared reselection priority of , further, the SIB may further include second indication information.
  • the second indication information may include an identifier of the HSDN cell corresponding to the second frequency; or, the second indication may include a range to which the identifier of the HSDN cell corresponding to the second frequency belongs.
  • the identity of the HSDN cell may be a physical cell identity (physical cell identity, PCI).
  • the terminal device may receive the reselection configuration information from the serving cell.
  • the terminal device acquires the reselection priority of the first frequency point and the reselection priority of the second frequency point, and the reselection priority of the second frequency point is lower than or equal to the reselection priority of the first frequency point.
  • the terminal device if the terminal device does not obtain the exclusive reselection priority of the first frequency point, it can use the shared reselection priority of the first frequency point as the reselection priority of the first frequency point If the terminal device obtains the exclusive reselection priority of the first frequency point, it can use the exclusive reselection priority of the first frequency point as the reselection priority of the first frequency point, and ignore the exclusive reselection priority of the first frequency point. Shared priority.
  • the terminal device For the second frequency point, if the terminal device does not obtain the exclusive reselection priority of the second frequency point, it can use the common reselection priority of the second frequency point as the reselection priority of the second frequency point; If the device obtains the exclusive reselection priority of the second frequency point, it can use the exclusive reselection priority of the second frequency point as the reselection priority of the second frequency point, ignoring the common priority of the second frequency point .
  • the above-mentioned conditions for measuring the cell corresponding to the second frequency point may include: the first frequency corresponding to the measurement result of the serving cell The signal quality indicator value is greater than the first threshold, and the second signal quality indicator value corresponding to the measurement result of the serving cell is greater than the second threshold.
  • the first signal quality indicator value corresponding to the measurement result of the serving cell may be Srxlev of the serving cell
  • the second signal quality indicator value corresponding to the measurement result of the serving cell may be Squal
  • the first threshold may be SnonIntraSearchP
  • the second The threshold can be SnonIntraSearchQ.
  • the first indication information may include a first threshold (ie SnonIntraSearchP) and a second threshold (ie SnonIntraSearchQ).
  • the terminal device acquires the measurement result of the serving cell.
  • a terminal device such as the physical layer of the terminal device
  • can receive downlink signals such as a synchronization signal (synchronization signal) and a physical broadcast channel block (PBCH block) (referred to as SSB) from a serving cell or other possible pilot signals), and then measure to obtain the measurement result of the serving cell.
  • downlink signals such as a synchronization signal (synchronization signal) and a physical broadcast channel block (PBCH block) (referred to as SSB) from a serving cell or other possible pilot signals
  • PBCH block physical broadcast channel block
  • the method for determining the mobile state of the terminal device is introduced.
  • the terminal device may detect the network service state of the terminal device, and the network service state may include a network loss state or a non-network loss state; further, the mobility state is determined according to the network service state.
  • the network loss state may refer to a state in which the measurement result of the serving cell of the terminal device is less than the third threshold and the duration is greater than or equal to the third duration.
  • the third threshold may be pre-specified in the protocol, which is not specifically limited.
  • determining the movement state according to the network service state may refer to: (1) when the network service state is a network loss state, the terminal device may acquire the speed detected by the speed sensor of the terminal device, and filter the speed to obtain the filtered speed; If the filtered speed is greater than or equal to the speed threshold, it is determined that the moving state of the terminal device is a high-speed state; if the filtered speed is less than the speed threshold, the moving state of the terminal device is determined to be a non-high-speed state.
  • the terminal device may include an application processor and a communication processor (such as a modem), the application processor may be provided with a speed sensor, and the communication processor may be used to detect the network service status of the terminal device. When the communication processor detects that the network service state of the terminal device is a network loss state, the terminal device can determine the movement state of the terminal device according to the speed detected by the speed sensor on the application processor.
  • the filtered speed can be determined by the following formula:
  • F n is the speed after filtering
  • F n-1 is the speed after filtering obtained by the last calculation
  • a is the filtering coefficient
  • Sn is the speed detected by the speed sensor.
  • the terminal device can determine the mobile state of the terminal device according to the number of reselected cells and the threshold of the number within the set time. For example, if the number of reselected cells of the terminal device within the set time is greater than or equal to the number threshold, it is determined that the mobile state of the terminal device is a high-speed state; if the number of reselected cells of the terminal device within the set time is less than If the number of thresholds is exceeded, the mobile state of the terminal device is determined to be a non-high-speed state.
  • the length of the set time and the number threshold may be obtained by the terminal device from the system message of the serving cell.
  • the terminal device can obtain the following parameters from the system message of the serving cell: T CRmax , N CR_H and cellEquivalentSize, where T CRmax represents the evaluation duration of the number of reselection cells (that is, the length of the setting time); N CR_H represents the terminal The mobile state of the device is the number threshold corresponding to the high-speed state; cellEquivalentSize represents the number of reselection cells that the terminal device reselects to the HSDN cell at one time.
  • the terminal device can detect the network service state, and then use different ways to determine the movement state of the terminal device according to different network service states, so as to improve the accuracy of the determined movement state. For example, if the network service status of the terminal equipment is not considered, the mobile status of the terminal equipment is determined according to the number of cells reselected within the set time and the number threshold. When the terminal equipment is in a network loss state, if the terminal equipment If cell reselection is performed, the number of reselected cells of the terminal device may not be updated in time, and thus the mobility state determined according to the number of reselected cells within the set time may not be accurate enough.
  • the terminal device may determine whether the measurement result of the serving cell satisfies the conditions for measuring the cell corresponding to the second frequency point, and determine the movement state of the terminal device.
  • the terminal equipment can change the reselection priority of the second frequency point from the first priority It is adjusted to the second priority, and the second priority is higher than the reselection priority of the first frequency point.
  • the second priority may be the highest priority (that is, the value of cellReselectionPriority is 8).
  • the adjusted reselection priority of the second frequency point is higher than the reselection priority of the first frequency point, and the terminal device can measure the cell corresponding to the second frequency point.
  • the terminal equipment may not measure the cell corresponding to the second frequency.
  • the terminal equipment measuring the cell corresponding to the second frequency point may refer to that the terminal equipment receives downlink signals from the cell corresponding to the second frequency point, and measures the downlink signals to obtain the measurement of the cell corresponding to the second frequency point result.
  • the downlink signal here can be SSB or other possible pilot signals.
  • the measurement of the cell corresponding to the second frequency point may be performed by the physical layer of the terminal device, so as to obtain the measurement result of the cell corresponding to the second frequency point.
  • the terminal device determines that the reselection priority of the second frequency point is lower than or equal to the reselection priority of the first frequency point, and the cell corresponding to the second frequency point includes the HSDN cell, when the serving cell is The measurement result of the second frequency point does not meet the conditions for measuring the cell corresponding to the second frequency point, but when the mobile state of the terminal equipment is in the high speed state, the measurement of the cell corresponding to the second frequency point can be started.
  • the terminal device determines that the reselection priority of the second frequency point is lower than or equal to the reselection priority of the first frequency point, and the cell corresponding to the second frequency point includes an HSDN cell, if the terminal device If the mobile state is high-speed, it can start to measure the cell corresponding to the second frequency; that is, the terminal device can also ignore the measurement result of the serving cell, that is, regardless of whether the measurement result of the serving cell satisfies the requirements for the second frequency The terminal equipment can start to measure the cell corresponding to the second frequency point according to the conditions for measuring the cell corresponding to the second frequency point.
  • the terminal device reselects the cell corresponding to the second frequency according to the measurement result of the cell corresponding to the second frequency.
  • the measurement result can be sent to the RRC layer, and then the RRC layer can re-evaluate the measurement result of the cell corresponding to the second frequency point by the RRC layer. Select the cell corresponding to the second frequency point.
  • the cell corresponding to the second frequency point may include one or more cells, and the following description is made by taking the cell corresponding to the second frequency point including the first cell and the second cell as an example.
  • the terminal equipment can judge whether the first cell belongs to the HSDN cell according to the second indication information, If the first cell belongs to the HSDN cell, the terminal device may determine the reselection priority of the first cell according to the adjusted reselection priority of the second frequency point, for example, the reselection priority of the first cell may be the second priority. Furthermore, according to the reselection priority of the first cell, it can be determined whether the measurement result of the first cell satisfies the first reselection condition, and if so, the first cell can be reselected.
  • the measurement result of the first cell satisfies the first reselection condition may include: the Srxlev of the first cell is greater than the first threshold value and lasts for the first time period.
  • the terminal device may determine whether to reselect to the first cell by referring to the implementation described above for reselection of a neighbor cell with a higher priority than the serving cell.
  • the terminal device can determine whether the second cell belongs to the HSDN cell according to the second indication information, and if the second cell does not belong to the HSDN cell, the terminal device can determine whether the second cell belongs to the HSDN cell according to the second indication information.
  • the reselection priority of the frequency point determines the reselection priority of the second cell.
  • the reselection priority of the second cell may be determined as the first priority.
  • the second cell can be reselected.
  • the measurement result of the second cell satisfying the second reselection condition may include: the R value of the second cell is greater than the R value of the serving cell, and continue for the first time.
  • the terminal may judge whether to reselect to the second cell by referring to the implementation described above for neighboring cells of the same priority. If the first priority is lower than the reselection priority of the first frequency point, the measurement result of the second cell meeting the second reselection condition may include: Srxlev is greater than the third threshold for a second duration. In this case, the terminal may determine whether to reselect to the second cell by referring to the implementation for reselection of a neighbor cell whose priority is lower than the serving cell described above.
  • the terminal device in the measurement result evaluation and cell reselection phases, can directly use the mobility state determined by the terminal device in the measurement initiation phase, for example, the terminal device determines in the measurement initiation phase that the mobility state is a high-speed state. , then in the measurement result evaluation and cell reselection stages, the terminal device can directly default to the high-speed state of the mobile state.
  • the mobility state of the terminal device may change.
  • the terminal equipment can also determine the mobility state of the terminal equipment in the above manner again; that is, during the cell reselection process, the terminal equipment can determine the current mobility state in the start measurement phase, and in the cell reselection process. The current mobility state is then determined in the measurement result evaluation and cell reselection stages, thereby ensuring the accuracy of the mobility state.
  • the terminal device can determine whether the first cell belongs to the HSDN cell according to the second indication information. If the first cell belongs to the HSDN cell, the terminal device can determine that the reselection priority of the first cell is the third priority, the third priority is the third priority. The priority is lower than the priority of the first frequency point.
  • the third priority may be the lowest priority (that is, the value of cellReselectionPriority is 0). In this case, the terminal may determine whether to reselect to the first cell by referring to the implementation for reselection of a neighbor cell whose priority is lower than that of the serving cell described above.
  • the terminal device can determine whether the second cell belongs to the HSDN cell according to the second indication information, and if the second cell does not belong to the HSDN cell, the terminal device can determine whether the second cell belongs to the HSDN cell according to the second indication information.
  • the reselection priority of the frequency point, to determine the reselection priority of the second cell for example, the reselection priority of the second cell can be determined as the first priority, and the relevant implementation of whether to reselect to the second cell can be found above. .
  • the frequency point corresponding to the neighboring cell of the serving cell of the terminal device may also include other possible frequency points, such as the third frequency point.
  • the cells corresponding to the three frequency points also include HSDN cells, and the terminal device can also use the above method to measure the cell corresponding to the third frequency point, and then according to each cell (such as the second frequency point and the third frequency point measured by the terminal equipment) The measurement result and reselection priority of the corresponding cell) are used to perform cell reselection.
  • the frequency points corresponding to the neighboring cells of the serving cell of the terminal device may also include a fourth frequency point.
  • the terminal device may The cell corresponding to the four-frequency point is measured (for the specific implementation, please refer to the prior art), and then the measurement result and reselection priority of each cell (such as the cell corresponding to the second frequency point and the fourth frequency point) measured by the terminal device are used. to perform cell reselection.
  • the same priority or low priority inter-frequency or inter-system frequency corresponds to an HSDN cell
  • the measurement result of the serving cell does not satisfy the same or low-priority inter-frequency or inter-system frequency Measurement conditions, but when the mobile state of the terminal equipment is in the high-speed state, it can still measure the inter-frequency or inter-system frequency points of the same priority or low priority, so as to facilitate the terminal equipment to reselect to the same priority or low priority.
  • HSDN cells corresponding to different frequencies or different system frequencies with different priorities improve user experience.
  • the terminal equipment may not perform intra-frequency measurement, that is, not perform measurement on intra-frequency neighboring cells.
  • the frequency corresponding to the serving cell includes an HSDN cell
  • the terminal device cannot be reselected to the HSDN cell, affecting user experience.
  • an embodiment of the present application provides a communication method for realizing reselection to an HSDN cell when the mobile state of the terminal device is in a high-speed state.
  • FIG. 6 is a schematic flowchart corresponding to the wireless communication method provided in Embodiment 2 of the present application. As shown in FIG. 6 , the method includes:
  • the access network device sends reselection configuration information to the terminal device on the serving cell of the terminal device.
  • the serving cell may belong to the HSDN cell, or may not belong to the HSDN cell.
  • the access network device may send the reselection configuration information through system messages (such as SIB3, SIB5, SIB6 to SIB8).
  • the reselection configuration information may include the first frequency point corresponding to the serving cell, the third indication information, and the fourth indication information.
  • Cells corresponding to a frequency point include HSDN cells.
  • the third indication information may be carried in SIB3, and the third indication information may include the identifier of the HSDN cell corresponding to the first frequency point; or, the third indication information may include the HSDN cell corresponding to the first frequency point The range to which the ID belongs.
  • the subsequent steps in the second embodiment may be performed. If the HSDN cell corresponding to the first frequency point only includes the serving cell, that is, the same-frequency neighboring cells of the serving cell do not include the HSDN cell, the subsequent implementation may refer to the prior art.
  • the terminal device may receive the reselection configuration information from the serving cell.
  • the terminal device acquires the measurement result of the serving cell.
  • the terminal device may determine whether the measurement result of the serving cell satisfies the condition for measuring the same-frequency neighboring cell, and determine the movement state of the terminal device.
  • the terminal equipment starts to measure the same-frequency neighboring cell. This is different from the first embodiment in which the terminal device starts to measure the cell corresponding to the second frequency by adjusting the reselection priority of the second frequency.
  • the terminal device does not need to adjust the first frequency. The reselection priority of the point.
  • the terminal equipment may not measure the same-frequency neighboring cells.
  • the terminal equipment determines that the same-frequency neighboring cells of the serving cell include HSDN cells, when the measurement result of the serving cell does not meet the conditions for measuring the same-frequency neighboring cells, but the mobile state of the terminal equipment is high speed. In the state, you can measure the same-frequency neighbor cell.
  • the terminal equipment after the terminal equipment determines that the same-frequency neighboring cells of the serving cell include HSDN cells, if the mobile state of the terminal equipment is in a high-speed state, it can measure the same-frequency neighboring cells; that is, the terminal equipment The measurement result of the serving cell may also be ignored, that is, regardless of whether the measurement result of the serving cell satisfies the condition for measuring the same-frequency neighboring cell, the terminal device may start measuring the same-frequency neighboring cell.
  • the terminal device reselects to the same-frequency neighboring cell according to the measurement result of the same-frequency neighboring cell.
  • the same-frequency neighboring cells may include one or more cells, and the following description is made by taking the same-frequency neighboring cells including the third cell and the fourth cell as an example.
  • the terminal device can judge whether the third cell belongs to the HSDN cell according to the fourth indication information, and if the third cell belongs to the HSDN cell cell, the terminal device can judge whether the measurement result of the third cell satisfies the re-selection condition, and if so, can re-selection to the third cell.
  • the terminal device can determine whether the fourth cell belongs to the HSDN cell according to the fourth indication information, and if the fourth cell does not belong to the HSDN cell, the terminal device can determine whether the measurement result of the fourth cell satisfies the reselection condition , if it is satisfied, it can be reselected to the fourth cell.
  • the terminal device may determine whether to reselect to the third cell or the fourth cell with reference to the implementation of the aforementioned neighboring cells of the same priority.
  • the terminal device can first determine whether the third cell satisfies the reselection condition, and when the third cell satisfies the reselection condition , the terminal equipment can preferentially reselect to the third cell; if the third cell does not meet the reselection conditions, it can further judge whether the fourth cell satisfies the reselection conditions, and if the fourth cell satisfies the reselection conditions, the terminal equipment can reselect to the fourth district.
  • the terminal device may directly use the mobility state determined by the terminal device in the start measurement phase.
  • the terminal device in the measurement result evaluation and cell reselection phases, can also determine the mobility state of the terminal device in the above manner again. For example, it is determined that the mobile state of the terminal equipment is a high-speed state in the phase of starting the measurement, and the mobile state of the terminal equipment is determined to be a non-high-speed state in the measurement result evaluation and cell reselection phases.
  • the terminal equipment can Judge whether the third cell belongs to the HSDN cell according to the fourth indication information. If the third cell belongs to the HSDN cell, the terminal device can judge whether the measurement result of the third cell satisfies the reselection condition, and if so, it can reselection to the third cell .
  • the terminal device can determine whether the fourth cell belongs to the HSDN cell according to the fourth indication information, and if the fourth cell does not belong to the HSDN cell, the terminal device can determine whether the measurement result of the fourth cell satisfies the reselection condition , if it is satisfied, it can be reselected to the fourth cell.
  • the terminal device may determine whether to reselect to the third cell or the fourth cell with reference to the implementation of the aforementioned neighboring cells of the same priority.
  • the terminal device can first determine whether the fourth cell satisfies the reselection conditions, and then the fourth cell When the cell satisfies the reselection condition, the terminal device can preferentially reselection to the fourth cell; if the fourth cell does not meet the reselection condition, it can further judge whether the third cell satisfies the reselection condition, and if the third cell satisfies the reselection condition, Then the terminal equipment can reselect to the third cell.
  • the same-frequency neighboring cell includes HSDN cells
  • the measurement result of the serving cell does not meet the conditions for measuring the same-frequency neighboring cell, but the mobile state of the terminal equipment is in the high-speed state, the same-frequency neighboring cell can still be measured.
  • the measurement is performed, so that the terminal equipment can be easily reselected to the HSDN cell in the adjacent cell of the same frequency, and the user experience is improved.
  • Embodiment 1 and Embodiment 2 above may be implemented separately, or may also be implemented in combination, which is not specifically limited.
  • Embodiment 1 and implementation can be implemented.
  • Example 2 is implemented in combination; in this case, the terminal equipment may reselect to the HSDN cell in the same-frequency adjacent cell, or may also reselect to the same priority or low priority inter-frequency or inter-system frequency corresponding to The specific HSDN cell may depend on the implementation of the terminal device, which is not limited in this embodiment of the present application.
  • Embodiment 1 and Embodiment 2 may refer to each other.
  • step numbers of the flowcharts described in Embodiment 1 and Embodiment 2 are only an example of the execution process, and do not constitute a restriction on the sequence of execution of the steps, and there is no sequence in the embodiments of the present application. There is no strict order of execution between the steps of a dependency. In addition, not all the steps shown in each flowchart are steps that must be executed, and some steps may be added or deleted on the basis of each flowchart according to actual needs.
  • the terminal device may include corresponding hardware structures and/or software modules for executing each function.
  • the embodiments of the present application can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the terminal device may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • FIG. 7 shows a possible exemplary block diagram of the apparatus involved in the embodiment of the present application.
  • the apparatus 700 may include: a processing unit 702 and a communication unit 703 .
  • the processing unit 702 is used to control and manage the actions of the device 700 .
  • the communication unit 703 is used to support the communication between the apparatus 700 and other devices.
  • the communication unit 703 is also referred to as a transceiving unit, and may include a receiving unit and/or a sending unit, which are respectively configured to perform receiving and sending operations.
  • the apparatus 700 may further include a storage unit 701 for storing program codes and/or data of the apparatus 700 .
  • the apparatus 700 may be the terminal device in the foregoing embodiment, or may also be a chip provided in the terminal device.
  • the processing unit 702 can support the apparatus 700 to perform the actions of the terminal device in the above method examples.
  • the processing unit 702 mainly performs the internal actions of the terminal device in the method example, and the communication unit 703 may support the communication between the apparatus 700 and other devices.
  • the communication unit 703 is configured to receive reselection configuration information from a serving cell, where the reselection configuration information includes a first frequency point corresponding to the serving cell and neighboring cells of the serving cell The corresponding second frequency point and first indication information, where the first indication information is used to indicate that the cell corresponding to the second frequency point includes a high-speed private network HSDN cell; wherein, the reselection priority of the second frequency point is lower than or equal to the reselection priority of the first frequency point; the processing unit 702 is configured to measure the cell corresponding to the second frequency point when the mobile state of the terminal device is a high-speed state; and, According to the measurement result of the cell corresponding to the second frequency point, the cell corresponding to the second frequency point is reselected.
  • the reselection configuration information further includes second indication information, and the second indication information is used to measure the conditions of the cell corresponding to the second frequency point; the processing unit 702 is specifically configured to obtain the serving cell If the measurement result of the serving cell does not meet the conditions for measuring the cell corresponding to the second frequency point, when the mobile state of the terminal equipment is in the high-speed state, the second frequency point The corresponding cell is measured.
  • the measurement result of the serving cell does not meet the conditions for measuring the cell corresponding to the second frequency point, including: the first signal quality indicator value corresponding to the measurement result of the serving cell is greater than the first threshold, And the second signal quality indicator value corresponding to the measurement result of the serving cell is greater than the second threshold.
  • the processing unit 702 is further configured to adjust the reselection priority of the second frequency point from a first priority to a second priority, where the second priority is higher than the first priority The reselection priority of a frequency point.
  • the cell corresponding to the second frequency point includes a first cell, and the first cell belongs to the HSDN cell; the processing unit 702 is specifically configured to: if the measurement result of the first cell satisfies The first reselection condition is to reselect the first cell.
  • the cell corresponding to the second frequency point further includes a second cell, and the second cell does not belong to the HSDN cell; the processing unit 702 is specifically configured to: when the measurement result of the first cell does not belong to the HSDN cell When the first reselection condition is satisfied, if the measurement result of the second cell satisfies the second reselection condition, the second cell is reselected.
  • the serving cell belongs to an HSDN cell, or the serving cell does not belong to an HSDN cell.
  • the second frequency point is an inter-frequency frequency point or an inter-system frequency point of the first frequency point.
  • the processing unit 702 is further configured to, when it is detected that the terminal device is in a network loss state, determine the movement state of the terminal device according to the speed measured by the speed sensor in the terminal device Whether it is in high speed state.
  • the processing unit 702 is specifically configured to obtain the filtered speed according to the speed measured by the speed sensor in the terminal device; if the filtered speed is greater than a speed threshold, determine the The mobile state of the terminal device is a high-speed state.
  • each unit in the above apparatus can be realized in the form of software calling through the processing element; also can all be realized in the form of hardware; some units can also be realized in the form of software calling through the processing element, and some units can be realized in the form of hardware.
  • each unit can be a separately established processing element, or can be integrated in a certain chip of the device to be implemented, and can also be stored in the memory in the form of a program, which can be called by a certain processing element of the device and execute the unit's processing. Function.
  • each operation of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software being invoked by the processing element.
  • a unit in any of the above apparatuses may be one or more integrated circuits configured to implement the above methods, eg, one or more application specific integrated circuits (ASICs), or, one or more Multiple microprocessors (digital singnal processors, DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.
  • ASICs application specific integrated circuits
  • DSPs digital singnal processors
  • FPGAs field programmable gate arrays
  • a unit in the apparatus can be implemented in the form of a processing element scheduler
  • the processing element can be a processor, such as a general-purpose central processing unit (CPU), or other processors that can invoke programs.
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the above unit for receiving is an interface circuit of the device for receiving signals from other devices.
  • the receiving unit is an interface circuit used by the chip to receive signals from other chips or devices.
  • the above unit for sending is an interface circuit of the device for sending signals to other devices.
  • the sending unit is an interface circuit used by the chip to send signals to other chips or devices.
  • FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present application, which may be the terminal device in the above embodiment, and is used to implement the operation of the terminal device in the above embodiment.
  • the terminal device includes: an antenna 810 , a radio frequency part 820 , and a signal processing part 830 .
  • the antenna 810 is connected to the radio frequency part 820 .
  • the radio frequency part 820 receives the information sent by the network device through the antenna 810, and sends the information sent by the network device to the signal processing part 830 for processing.
  • the signal processing part 830 processes the information of the terminal equipment and sends it to the radio frequency part 820
  • the radio frequency part 820 processes the information of the terminal equipment and sends it to the network equipment through the antenna 810 .
  • the signal processing part 830 may include a modulation and demodulation subsystem, which is used to implement the processing of each communication protocol layer of the data; it may also include a central processing subsystem, which is used to implement the processing of the terminal device operating system and the application layer; in addition, it can also Including other subsystems, such as multimedia subsystem, peripheral subsystem, etc., wherein the multimedia subsystem is used to realize the control of the terminal equipment camera, screen display, etc., and the peripheral subsystem is used to realize the connection with other devices.
  • the modem subsystem can be a separate chip.
  • the modem subsystem may include one or more processing elements 831, including, for example, a host CPU and other integrated circuits.
  • the modulation and demodulation subsystem may also include a storage element 832 and an interface circuit 833 .
  • the storage element 832 is used for storing data and programs, but the program for executing the method performed by the terminal device in the above method may not be stored in the storage element 832, but in a memory outside the modulation and demodulation subsystem, When used, the modem subsystem is loaded for use.
  • Interface circuit 833 is used to communicate with other subsystems.
  • the modulation and demodulation subsystem can be implemented by a chip, the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute each step of any one of the methods performed by the above terminal equipment, and the interface circuit is used to communicate with other devices.
  • the unit for the terminal device to implement each step in the above method may be implemented in the form of a processing element scheduler.
  • an apparatus for a terminal device includes a processing element and a storage element, and the processing element calls the program stored in the storage element to Execute the method executed by the terminal device in the above method embodiments.
  • the storage element may be a storage element in which the processing element is on the same chip, that is, an on-chip storage element.
  • the program for executing the method performed by the terminal device in the above method may be in a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the processing element calls or loads the program from the off-chip storage element to the on-chip storage element, so as to call and execute the method performed by the terminal device in the above method embodiments.
  • the unit for the terminal device to implement each step in the above method may be configured as one or more processing elements, and these processing elements are provided on the modulation and demodulation subsystem, and the processing element here may be an integrated circuit, For example: one or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form chips.
  • the units of the terminal device implementing each step in the above method may be integrated together and implemented in the form of an SOC, and the SOC chip is used to implement the above method.
  • At least one processing element and a storage element may be integrated in the chip, and the method executed by the above terminal device may be implemented in the form of a program stored in the storage element being invoked by the processing element; or, at least one integrated circuit may be integrated in the chip to implement the above terminal.
  • the above apparatus for a terminal device may include at least one processing element and an interface circuit, where the at least one processing element is configured to execute any method performed by the terminal device provided in the above method embodiments.
  • the processing element can execute part or all of the steps performed by the terminal device in the first way: by calling the program stored in the storage element; or in the second way: by combining the instructions with the integrated logic circuit of the hardware in the processor element Part or all of the steps performed by the terminal device may be performed in the manner of the first method; of course, some or all of the steps performed by the terminal device may also be performed in combination with the first manner and the second manner.
  • the processing elements here are the same as those described above, which may be implemented by a processor, and the functions of the processing elements may be the same as those of the processing unit described in FIG. 7 .
  • the processing element may be a general-purpose processor, such as a CPU, or may be one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or, one or more microprocessors, DSPs , or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element may be implemented by a memory, and the function of the storage element may be the same as that of the storage unit described in FIG. 7 .
  • the storage element may be implemented by a memory, and the function of the storage element may be the same as that of the storage unit described in FIG. 7 .
  • the storage element can be one memory or a collective term for multiple memories.
  • the terminal device shown in FIG. 8 can implement each process involving the terminal device in the foregoing method embodiments.
  • the operations and/or functions of each module in the terminal device shown in FIG. 8 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un procédé et un appareil de communication sont divulgués. Le procédé comprend les étapes suivantes : un dispositif terminal reçoit des informations de configuration de re-sélection en provenance d'une cellule de desserte, les informations de configuration de re-sélection comprenant un premier point de fréquence correspondant à la cellule de desserte, un second point de fréquence correspondant à une cellule voisine de la cellule de desserte, et des premières informations d'indication, ces premières informations d'indication étant utilisées pour indiquer qu'une cellule correspondant au second point de fréquence comprend une cellule HSDN et que la priorité de re-sélection du second point de fréquence est inférieure ou égale à la priorité de re-sélection du premier point de fréquence ; lorsque l'état de déplacement du dispositif terminal est un état de grande vitesse, le dispositif terminal mesure la cellule correspondant au second point de fréquence et, en fonction d'un résultat de mesure de la cellule correspondant au second point de fréquence, re-sélectionne la cellule correspondant au second point de fréquence. À l'aide de ce procédé, si un second point de fréquence, ayant la même priorité ou une priorité inférieure, comprend une cellule HSDN, lorsque l'état de déplacement d'un dispositif terminal est un état à grande vitesse, le second point de fréquence peut être mesuré, de façon à faciliter la re-sélection, par le dispositif terminal, de la cellule HSDN correspondant au second point de fréquence, et à améliorer l'expérience de l'utilisateur.
PCT/CN2020/141792 2020-12-30 2020-12-30 Procédé et appareil de communication WO2022141291A1 (fr)

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CN202080105051.4A CN116325916A (zh) 2020-12-30 2020-12-30 一种通信方法及装置

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