Air interface neighbor cell grading processing method and equipment

Abstract

The invention discloses an air interface neighbor cell grading processing method and equipment, which are used for solving the problems of call drop or offline caused by too long neighbor cell information sending time and untimely switching in a narrowband communication system. The method comprises the following steps that: a service base station periodically reserves an air interface resource unit in a wireless channel, and configures a switching priority for a neighbor cell; when the neighbor cell information is sent in the air interface resource unit, the neighbor cell information is sent according to the priority from high to low, and / or the integrity of the neighbor cell information with the high priority is not lower than the integrity of the neighbor cell information with the low priority; the terminal side receives neighbor cell information, starts switching in response to the situation that the signal quality is lower than a threshold value, measures and tries to switch according to a priority sequence, and requests the base station if the information is insufficient; and the base station responds to the request and sends complete access information. According to the method and the device, the priority scheduling is combined with the on-demand request, so that the switching real-time performance and the resource utilization rate are improved.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to an air interface neighbor classification processing method and device. Background Technology

[0002] In cellular mobile communication systems, in order to ensure the continuous communication experience of terminal users, the serving base station needs to configure surrounding adjacent sites as neighboring cells. The serving base station periodically sends neighboring cell information so that when the terminal's signal weakens due to movement or other reasons and no longer meets the locking requirements, it can switch to a neighboring site with a stronger signal in a timely manner.

[0003] However, actual network deployment is far more complex than the theoretical model. Theoretically, a cellular system can have six neighboring cells, but in reality, due to the dense construction of urban base stations, building obstructions, and complex terrain factors such as the height at which antennas of different base stations are mounted, the number of neighboring cells can far exceed six.

[0004] This problem is particularly critical in resource-constrained systems. In narrowband systems, due to the limited information that can be transmitted over the air interface, especially when the terminal is in a call, downlink can only embed neighbor cell information into the voice message and send it along with the caller's number or alias at intervals. Therefore, the time required to send multiple neighbor cells is relatively long, with an average of 720ms for sending one neighbor cell.

[0005] This presents a dilemma for network planning: configuring too many neighboring cells results in an excessively large search range for terminals, making it difficult to find valid neighboring cell signals in a timely manner; simultaneously, a large number of neighboring cells also leads to excessively long transmission times for the serving base station to send neighboring cell information, preventing terminals from receiving the neighboring cell list information promptly. Conversely, configuring too few neighboring cells for the serving base station will affect the range of neighboring cell lists that terminals can search, causing terminals to disconnect from the network or drop calls.

[0006] In summary, the main contradiction of existing technologies lies in the fact that, under the inherent and extremely limited air interface resource constraints of narrowband communication systems (especially their service channels), it is impossible to simultaneously resolve the conflicting requirements of "complete coverage of the neighbor cell list" and "rapid distribution of neighbor cell information." Currently, there is a lack of an intelligent mechanism capable of optimizing the scheduling of limited signaling resources to ensure timely handover in most scenarios without sacrificing overall network coverage and handover success rate. Summary of the Invention

[0007] This application proposes an air interface neighbor cell hierarchical processing method and device to solve the problems of excessively long transmission time of neighbor cell information, excessively large terminal switching search range, and untimely switching leading to dropped calls or network disconnection in narrowband communication systems. It is particularly suitable for wireless communication systems that need to embed and transmit neighbor cell information in the voice service channel.

[0008] This application provides an air interface neighbor classification processing method, including the following steps: The serving base station periodically reserves air interface resource units in the radio channel and configures at least two handover priorities for multiple neighboring cells; The serving base station sends multiple neighbor cell information of the serving base station to the terminal side device in the air interface resource unit, and performs at least one of the following when sending: sending from high to low according to the handover priority; ensuring that the integrity of the neighbor cell information with high handover priority is not lower than the integrity of the neighbor cell information with low handover priority. The terminal-side device receives the neighbor cell information in the air interface resource unit; In response to the service signal quality falling below a set threshold, the terminal device initiates a handover process; the handover process includes at least one of the following operations: measuring and attempting to hand over to the corresponding neighboring cell in descending order of handover priority; if the information of a neighboring cell is insufficient to support connection establishment, generating and sending an information request for that neighboring cell to the serving base station; In response to receiving an information request for a neighboring cell, the serving base station sends complete access information for that neighboring cell to the terminal device.

[0009] In a first aspect, embodiments of this application also provide an air interface neighbor classification processing method for serving a base station, comprising the following steps: Configure at least two handover priorities for multiple neighboring cells; In the wireless channel, air interface resource units are periodically reserved; When transmitting multiple neighbor cell information in the air interface resource unit, at least one of the following is performed: Neighboring cell information is sent in descending order of transmission priority. Ensure that the integrity of neighbor cell information with high handover priority is no less than that of neighbor cell information with low handover priority. In response to receiving an information request for one of the neighboring cells, complete access information for that neighboring cell is sent.

[0010] In one embodiment, the air interface resource unit is a fixed position time slot reserved for in-line control information in the voice service frame structure.

[0011] In one embodiment, different transmission guarantee strategies are set for the neighboring cells with different handover priorities.

[0012] In one embodiment, when transmitting the neighbor cell information in the air interface resource unit, if the transmission resources are insufficient to carry the complete access information of all neighbor cells within one cycle, the complete access information of neighbor cells with high handover priority is transmitted first.

[0013] In one embodiment, when the service channel is accompanied by voice transmission, only the complete access information of the high handover priority neighboring cells is transmitted.

[0014] Secondly, embodiments of this application also provide an air interface neighbor classification processing method for a terminal-side device, comprising the following steps: In the air interface resource unit of the wireless channel, multiple neighbor cell information of the serving base station is received; the multiple neighbor cell information has at least two handover priorities; In response to a service signal quality falling below a set threshold, a handover process is initiated; the handover process includes at least one of the following operations: Based on the switching priority, the corresponding neighboring cells are measured and attempted to be switched to in descending order of priority. If the information of a neighboring cell is insufficient to support the establishment of a connection, an information request for that neighboring cell is generated and sent, and the complete access information of that neighboring cell is received.

[0015] In one embodiment, the process of measuring and attempting to switch to the corresponding neighboring cell in descending order of switching priority includes: Perform signal measurements on neighboring cells; When the signal measurement results of the neighboring cell with a higher handover priority do not meet the handover conditions, signal measurement is performed on the neighboring cell with a lower handover priority.

[0016] Thirdly, embodiments of this application also provide a serving base station device for implementing the air interface neighbor classification processing method described in any embodiment of the first aspect, comprising: a base station receiving module, configured to receive an information request for a neighboring cell from a terminal-side device; a base station determining module, configured to configure at least two handover priorities for multiple neighboring cells; further configured to determine air interface resource units periodically reserved in the radio channel; further configured to determine a strategy executed when transmitting neighboring cell information in the air interface resource units, the strategy being at least one of the following: transmitting from high to low according to the handover priority; ensuring that the integrity of neighboring cell information with high handover priority is not lower than the integrity of neighboring cell information with low handover priority; and a base station transmitting module, configured to transmit multiple neighboring cell information in the air interface resource units; further configured to transmit complete access information of the neighboring cell in response to receiving an information request for a neighboring cell.

[0017] Fourthly, embodiments of this application also provide a terminal-side device for implementing the air interface neighbor cell hierarchical processing method described in any embodiment of the second aspect, comprising: a terminal receiving module, configured to receive multiple neighbor cell information from a serving base station in an air interface resource unit of a wireless channel; the multiple neighbor cell information having at least two handover priorities; a terminal determining module, configured to determine to initiate a handover process in response to a service signal quality lower than a set threshold; and further configured to, in the handover process, determine to perform at least one of the following operations: sequentially measure and attempt to hand over to the corresponding neighbor cell according to the handover priority from high to low; if the neighbor cell information is insufficient to support connection establishment, determine to generate an information request for that neighbor cell; and a terminal sending module, configured to send the information request generated by the terminal determining module to the serving base station.

[0018] This application also proposes a communication device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any embodiment of the first aspect of this application.

[0019] This application also proposes a computer-readable medium on which a computer program is stored, which, when executed by a processor, implements the steps of the method as described in any embodiment of the first aspect of this application.

[0020] This application also proposes a mobile communication system comprising at least one serving base station as described in any embodiment of this application and / or at least one terminal-side device as described in any embodiment of this application.

[0021] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects: This application's embodiments effectively improve the handover performance of resource-constrained wireless communication systems by introducing a neighbor cell priority and differentiated processing mechanism. First, the scheme significantly optimizes the real-time performance of handover by ensuring that critical neighbor cell information is delivered preferentially through priority scheduling, enabling the terminal to quickly lock onto the target and significantly shortening the handover decision and execution latency. Second, the scheme significantly improves search efficiency and reduces unnecessary RF scanning and processing overhead by guiding the terminal to perform measurements in priority order, thereby reducing terminal power consumption. More importantly, under the strict conditions of limited air interface resources, this scheme maximizes the utilization of limited signaling resources through a hybrid strategy of "ensuring high priority and requesting low priority on demand," maintaining the network's global coverage capability while ensuring a high handover success rate in most scenarios. Furthermore, the intelligent request mechanism on the terminal side enhances the system's robustness, ensuring that the handover process can continue even in edge scenarios with incomplete information, improving the continuity and reliability of communication services. Overall, this application achieves a systematic improvement in handover speed, success rate, and energy efficiency through logical layer collaborative optimization without increasing system physical resources. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a flowchart illustrating an embodiment of the air interface neighbor classification processing method of this application; Figure 2 This is a flowchart illustrating an embodiment of the air interface neighbor classification processing method of this application used for serving base station equipment; Figure 3 This is a flowchart illustrating an embodiment of the air interface neighbor classification processing method of this application used in a terminal-side device; Figure 4 A schematic diagram of an embodiment of a service base station device; Figure 5 This is a schematic diagram of an embodiment of the terminal-side device; Figure 6 This is a schematic diagram of the structure of a service base station device according to another embodiment of this application; Figure 7 This is a block diagram of a terminal-side device according to another embodiment of this application. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0025] Figure 1 This is a flowchart illustrating an embodiment of the method of this application.

[0026] This application proposes a method for hierarchical processing of air interface neighbor separations, comprising the following steps 110-150: Step 110: The serving base station periodically reserves air interface resource units in the wireless channel and configures at least two handover priorities for multiple neighboring cells.

[0027] In this embodiment of the application, the wireless channel includes a service channel and a control channel, which are used to carry user data and control signaling, respectively.

[0028] The serving base station reserves air interface resource units in the wireless channel at fixed intervals specifically for transmitting neighboring cell information, and sets different levels of handover priorities for multiple neighboring base stations in its vicinity. For example, in a service channel scenario, the air interface resource unit can be a dedicated time slot reserved in the voice frame structure; in a control channel scenario, the air interface resource unit can be transmission resources allocated in the broadcast or paging channel.

[0029] Meanwhile, based on network planning schemes, such as geographical location or business importance, the base station marks some base stations in its neighboring cell list as high priority and others as low priority.

[0030] Taking voice services as an example, in a professional wireless communication network (such as a PDT network) employing Time Division Multiple Access (TDMA) technology, the serving base station allocates the Nth micro-hour slot in each voice call frame sequence. This micro-hour slot is not used to transmit voice data but is dedicated to carrying control signaling. Simultaneously, based on network planning schemes, such as geographical location, service importance, or traffic sharing strategies, the base station marks some base stations in its neighboring cell list as high priority and others as low priority.

[0031] Periodically reserved air interface resource units refer to the service base station regularly allocating a segment of transmission resources dedicated to transmitting control signaling at a fixed time position in the wireless channel.

[0032] In this embodiment, the air interface resource unit is a transmission resource periodically reserved by the serving base station in the wireless channel for transmitting neighboring cell information, and its specific form depends on the communication system used.

[0033] For example, in systems employing Time Division Multiple Access (TDMA) technology, the air interface resource unit can be a dedicated time slot reserved in the voice frame structure; in systems employing other multiple access methods, the air interface resource unit can also be a subframe, resource block, or other forms of periodic transmission resources. No further limitations are imposed here.

[0034] The term "serving base station" refers to a base station device in a cellular network that provides wireless access and communication services to terminals within a specific geographical area (cell).

[0035] The term "neighboring cell" refers to surrounding base stations that are geographically adjacent to the serving base station and whose wireless signal coverage overlaps or has boundaries with it. During movement, the terminal may move from the coverage area of ​​the current serving base station into the coverage area of ​​these neighboring base stations.

[0036] Handover priority refers to the level parameters configured by the serving base station for different neighboring cells to guide the handover order. "At least two handover priorities" means that the serving base station sets the priorities of the neighboring cells in its neighboring cell list to be at least two different levels, such as "high priority" and "low priority" constitute two levels; it can also be further subdivided into more levels, such as high, medium and low levels, and multiple neighboring cells can be included in the same level.

[0037] For example, the configuration methods for switching priorities include, but are not limited to: static configuration by maintenance personnel through the network management system and distribution to the serving base station; automatic calculation and generation by the serving base station based on the geographical location of neighboring cells, historical call data, or load conditions; or dynamic adjustment by the core network based on the network-wide load balancing strategy and notification to the serving base station.

[0038] In actual network deployments, due to factors such as dense base station construction and terrain obstruction, the actual number of neighboring cells of a serving base station may far exceed the theoretical value for cellular networks.

[0039] Step 120: The serving base station sends multiple neighbor cell information of the serving base station to the terminal side device in the air interface resource unit, and performs at least one of the following when sending: sending from high to low according to the handover priority; ensuring that the integrity of the neighbor cell information with high handover priority is not lower than the integrity of the neighbor cell information with low handover priority.

[0040] It should be noted that the neighbor cell information mentioned in this application refers to the set of parameters configured by the serving base station for a single neighbor cell. Accordingly, "multiple neighbor cell information" refers to the set of multiple neighbor cell information configured by the serving base station for its multiple neighbor cells, rather than multiple pieces of information for a single neighbor cell.

[0041] In this embodiment, the integrity level refers to the types and level of detail of parameters included in the neighbor cell information sent by the serving base station. A higher integrity level corresponds to a more comprehensive set of parameters, which can support the terminal to directly initiate the access process; a lower integrity level corresponds to a simplified set of parameters, which may only support the terminal to identify the neighbor cell identity and is insufficient to directly complete the access.

[0042] For example, complete access information may include all necessary parameters such as the carrier frequency, color code, scrambling code, and synchronization configuration of neighboring cells; simplified information may only include the neighboring cell identifier and carrier frequency.

[0043] In this embodiment of the application, the serving base station sends a list containing details of multiple neighboring cells to the terminals under its coverage within the reserved air interface resource unit, and uses specific priority-based rules to schedule the sending order or determine the level of detail of the information content during the sending process.

[0044] For example, within this air interface resource unit, the serving base station strictly follows the priority order, first sending the complete information of all high-priority neighboring cells, and then sending the simplified information of low-priority neighboring cells.

[0045] For example, the serving base station ensures that high-priority neighbor cell information is always sent completely, while low-priority neighbor cell information may be simplified or not sent at all.

[0046] The neighboring cell information refers to the set of relevant parameters of all neighboring cells that the serving base station needs to inform the terminals under its coverage.

[0047] Sending information from high to low priority according to the switching priority means that in the resource sequence of the air interface resource unit, the serving base station arranges the neighbor cell information to appear in a strict order according to their priority, with higher priority information being sent before lower priority information.

[0048] Sending information from higher-priority neighboring cells with a completeness level no lower than that of lower-priority neighboring cells means that the level of detail (completeness) of the information content sent to neighboring cells of different priorities is linked to their priority. The completeness of the information sent to higher-priority neighboring cells should be equal to or higher than that of lower-priority neighboring cells. For example, information from high-priority neighboring cells may contain all necessary access parameters, while information from low-priority neighboring cells may only contain the base station identifier.

[0049] In one embodiment, when neighbor cell information is transmitted on the control channel, the serving base station only performs transmission according to the handover priority from high to low; when voice is transmitted on the service channel, the serving base station simultaneously performs transmission according to the handover priority from high to low and transmits information of neighbor cells with higher priority at an integrity level no lower than that of neighbor cells with lower priority.

[0050] Step 130: The terminal-side device receives the neighbor cell information in the air interface resource unit of the wireless channel.

[0051] In this embodiment of the application, while maintaining a service channel connection with the serving base station, the terminal device receives and decodes a list of neighboring cell information sent by the serving base station at a specific air interface resource unit location of the wireless channel.

[0052] For example, during a call, the terminal's receiver continues to work. When the physical layer frame timing arrives at the location of the air interface resource unit announced by the serving base station, the terminal demodulates and decodes the neighbor cell information message from that air interface resource unit, and then updates its internal neighbor cell list.

[0053] Terminal-side equipment refers to user equipment that is in a mobile or fixed location and is connected to a wireless communication network.

[0054] Receiving the neighbor cell information includes the entire process of the terminal performing physical layer demodulation and channel decoding of the radio signals within the air interface resource unit, as well as protocol layer parsing of the message carrying the neighbor cell information.

[0055] Step 140: In response to the service signal quality falling below a set threshold, the terminal-side device initiates a handover process; the handover process includes at least one of the following operations: Based on the switching priority, the corresponding neighboring cells are measured and attempted to be switched to in descending order of priority. If the neighboring cell information for that neighboring cell is insufficient to support connection establishment, an information request for that neighboring cell is generated and sent to the serving base station.

[0056] In this embodiment, when the terminal measures that the signal quality of its currently connected serving base station has deteriorated to below a set threshold, it will trigger a handover process. During this process, the terminal searches for and attempts to access available neighboring cells one by one according to the priority order of the received neighboring cells.

[0057] For example, the terminal continuously monitors the received signal strength of the serving base station. When the signal strength falls below a set threshold, the handover process is initiated. The terminal first retrieves a stored list of priority neighbor cells and only measures the signal of those marked as high priority. If a high-priority neighbor cell meets the requirements, the terminal attempts to handover. If none of the high-priority neighbor cells meet the requirements, the terminal then measures the low-priority neighbor cells. Suppose the terminal decides to handover to a low-priority neighbor cell but finds that the locally stored information for that neighbor cell is incomplete, the terminal will pause the access attempt, construct a message requesting complete access information for that neighbor cell, and send it to the current serving base station via the uplink channel.

[0058] A service signal quality falling below a set threshold is the criterion for triggering a handover. Signal quality can be measured by indicators such as signal strength or signal-to-noise ratio (SNR), specifically, by indicators such as received signal strength indication, reference signal received power, or SNR. The set threshold is a value pre-configured according to network planning. The handover process refers to a series of ordered operations performed by the terminal to leave the current serving base station and successfully access another base station. The terminal measures and attempts to handover to the corresponding neighboring cell in descending order of handover priority, meaning that the terminal's handover search behavior is guided by the priority issued by the network side, prioritizing the search for targets in high-priority neighboring cells. If the neighboring cell information corresponding to the neighboring cell is insufficient to support connection establishment, it means that the terminal's locally stored parameter set for that neighboring cell is missing necessary items, preventing the initiation of a complete radio access procedure. Generating and sending an information request for that neighboring cell to the serving base station means that after determining that the information is insufficient, the terminal actively constructs and sends an uplink request message containing the target neighboring cell identifier to retrieve the missing complete access parameters.

[0059] Step 150: In response to receiving an information request for a neighboring cell, the serving base station sends the complete access information of the neighboring cell to the terminal-side device.

[0060] In this embodiment of the application, after receiving an information request from a terminal for a specific neighboring cell, the serving base station sends all the necessary access parameters of the requested neighboring cell to the terminal.

[0061] For example, the serving base station receives a request message from a terminal indicating that it needs complete access information from neighboring cells. Subsequently, in the next available downlink resource, the serving base station sends a message to the terminal containing complete parameters such as carrier frequency, cell color code, and synchronization channel configuration.

[0062] In response to receiving an information request for a neighboring cell, the action triggering conditions of the serving base station are described, that is, the action is triggered by receiving a specific request from the terminal.

[0063] Complete access information refers to the complete set of radio parameters necessary for a terminal to successfully initiate radio access, complete cell camping, and establish a communication connection with the neighboring cell.

[0064] Sending the complete access information of the neighboring cell constitutes a response to the terminal's request. After receiving the low-priority service channel handover request message, the base station sends the service channel information of the low-priority neighboring cell.

[0065] It should be noted that the above steps can be performed by network entities of the wireless communication system, including terminal-side devices, serving base stations, or other intermediate devices; the above steps can also be performed by service devices that provide information processing for the network entities; the above steps can also be performed by any device, system, subsystem, circuit, chip, or software entity capable of providing information receiving, sending, identification, or processing functions for terminal-side devices or serving base stations. The implementation of the method steps does not depend on a specific hardware form or software level, and its scope of protection covers any technical means used to implement the logical functions of the steps.

[0066] Figure 2 This is a flowchart illustrating an embodiment of the method of this application used to serve base station equipment.

[0067] The method described in any embodiment of the first aspect of this application, used for serving a base station, includes the following steps 210-250: Step 210: Configure at least two handover priorities for multiple neighboring cells.

[0068] In this embodiment of the application, the serving base station assigns handover recommendation level parameters with different levels to multiple neighboring cells around it.

[0069] For example, the serving base station sets priority parameters for neighboring cells based on network planning data.

[0070] Configuring at least two handover priorities for multiple neighboring cells means that the serving base station sets priority identifiers for different neighboring cells in its neighboring cell list that can be used for comparison and sorting, and these identifiers can distinguish at least two different levels.

[0071] In one embodiment, at least two of the switching priorities include high priority and low priority, and different transmission guarantee strategies are set for the high priority neighboring cells and the low priority neighboring cells respectively.

[0072] In this embodiment, a specific implementation of step 210 is defined. In this embodiment, the priority is explicitly divided into two categories: "high" and "low," and different protection rules are predefined for the neighboring cells of these two categories during subsequent information transmission.

[0073] For example, the serving base station classifies some neighboring cells as high priority and others as low priority. Simultaneously, a protection strategy is set as follows: complete access information for high-priority neighboring cells is sent in every transmission cycle, while complete access information for low-priority neighboring cells is sent only once every few cycles.

[0074] At least two of the aforementioned handover priorities include high priority and low priority, which is a specification of the priority types and numbers. Setting different transmission guarantee strategies for the high-priority neighboring cells and low-priority neighboring cells means that the serving base station predetermines a set of rules based on the priority category. These rules specify different guarantees for the transmission timing, transmission frequency, or content integrity of information from neighboring cells of different priorities.

[0075] Step 220: Periodically reserve air interface resource units in the wireless channel.

[0076] In this embodiment of the application, the serving base station pre-allocates a segment of resources specifically for transmitting control signaling within its defined frame format for transmitting voice services at fixed time intervals.

[0077] For example, the frame structure of the serving base station is configured with one air interface resource unit per frame, which is used to send control information such as a neighboring cell list.

[0078] In wireless channels, periodically reserving air interface resource units is a planning behavior of the serving base station for downlink transmission resources at the physical or logical layer.

[0079] In one embodiment, the air interface resource unit is a fixed position time slot reserved in the wireless channel for in-band control information.

[0080] In this embodiment, the "air interface resource unit" attribute in step 220 is further defined. In this embodiment, the time slot is explicitly designated to carry "in-band control information," and its position in the frame structure is predetermined.

[0081] For example, in the service channel frame of the PDT system, a signaling message is sent along with the path at a fixed timeslot position in the frame.

[0082] The air interface resource unit is a fixed position time slot reserved in the wireless channel for in-band control information.

[0083] When transmitting multiple neighbor cell information in the air interface resource unit, at least one of the following steps 230 or 240 is performed: Step 230: Send the neighbor cell information in descending order of sending priority.

[0084] In this embodiment of the application, when the serving base station organizes the list of neighboring cell information to be transmitted within the air interface resource unit, it determines their order in the transmission sequence according to the handover priority configured for each neighboring cell, with neighboring cell information of higher priority arranged first and neighboring cell information of lower priority arranged later.

[0085] For example, a serving base station has multiple high-priority neighbor cells and multiple low-priority neighbor cells. During transmission, information from high-priority neighbor cells is sent first, followed by information from low-priority neighbor cells.

[0086] Sending the neighbor cell information in descending order of transmission priority means ensuring that, in the allocation order of limited resources within the air interface resource unit, signaling units carrying high-priority neighbor cell information are processed or sent before signaling units carrying low-priority neighbor cell information.

[0087] Step 240: Ensure that the integrity of the neighboring cell information with high handover priority is not lower than the integrity of the neighboring cell information with low handover priority.

[0088] Information from neighboring cells with higher handover priority is sent at an integrity level no lower than that of neighboring cells with lower handover priority.

[0089] In this embodiment of the application, when the serving base station sends information about different neighboring cells within the air interface resource unit, it ensures that the level of detail of the information content corresponding to the high-priority neighboring cells is not lower than that of the low-priority neighboring cells.

[0090] For example, the serving base station sends information blocks containing complete parameters to high-priority neighboring cells, and only sends information blocks containing simplified information to low-priority neighboring cells.

[0091] When a neighboring cell with a higher priority is switched over, its information is sent with an integrity level no lower than that of a neighboring cell with a lower priority.

[0092] In one embodiment, when transmitting neighbor cell information in the air interface resource unit, if the transmission resources are insufficient to carry the complete access information of all neighbor cells within one cycle, the complete access information of high-priority neighbor cells is transmitted first.

[0093] It should be noted that the "complete access information of all neighboring cells" mentioned in the embodiments of this application refers to the set of complete access information configured by the serving base station for all its neighboring cells, that is, each neighboring cell corresponds to one set of complete access information. The term "all" indicates that it involves all neighboring cells, rather than multiple pieces of information from a single neighboring cell.

[0094] This application provides a specific decision-making rule when the air interface resource unit (ALU) resource capacity is insufficient. When the available resources in a single transmission cycle cannot carry the complete access information of all neighboring cells, the serving base station prioritizes ensuring the integrity of high-priority neighboring cell information.

[0095] For example, if the air interface resource unit capacity is limited in a certain period, it may be unable to transmit complete access information for all neighboring cells. In this case, the base station may choose to transmit the complete information for all high-priority neighboring cells, and use the remaining resources to transmit simplified information for low-priority neighboring cells.

[0096] When transmitting neighbor cell information in the air interface resource unit, if the transmission resources are insufficient to carry the complete access information of all neighbor cells within one cycle, it means that the effective payload allocated to the air interface resource unit is less than the total demand for the complete access information of all neighbor cells. Prioritizing the transmission of complete access information of high-priority neighbor cells is a scheduling method used by the serving base station in resource-constrained scenarios.

[0097] In one embodiment, when voice is transmitted along with the service channel, only the complete access information of high-priority neighboring cells is transmitted by default.

[0098] In this embodiment, a default operating mode is defined when the service channel is in a voice call active state. In this mode, the serving base station is configured by default to send complete access information of high-priority neighboring cells only in the air interface resource unit.

[0099] For example, when a voice call is detected on the service channel, the sending module of the serving base station will, by default, only fill in the complete access information of high-priority neighboring cells in each air interface resource unit, and will not actively include the complete access information of any low-priority neighboring cells.

[0100] The service channel is used in conjunction with voice transmission, and the service channel resources are occupied by voice services and are in a continuous transmission state.

[0101] Step 250: In response to receiving an information request for one of the neighboring cells, send the complete access information for that neighboring cell.

[0102] In this embodiment of the application, after receiving an information request from a terminal for a specific neighboring cell, the serving base station sends all the necessary access parameters of the requested neighboring cell to the terminal.

[0103] For example, the serving base station decodes the request message from the terminal and parses out the target neighbor cell identifier requested in it. Subsequently, in the next available downlink resource, the serving base station sends a response message to the terminal, which carries the complete access parameters of the neighbor cell.

[0104] In response to receiving an information request for a neighboring cell, the triggering condition for the serving base station to perform this action is clarified, namely, the action is driven by a specific request initiated by the terminal.

[0105] Complete access information refers to the set of wireless parameters necessary for a terminal to successfully access and register with the target neighboring cell.

[0106] Sending complete access information for the neighboring cell constitutes a response to the terminal's request.

[0107] Figure 3 This is a flowchart illustrating an embodiment of the method of this application used in a terminal-side device.

[0108] The method described in any embodiment of the second aspect of this application, used in a terminal-side device, includes the following steps 310-330: Step 310: In the air interface resource unit of the wireless channel, receive multiple neighbor cell information of the serving base station; the multiple neighbor cell information has a handover priority.

[0109] The embodiments described in this application are consistent with those described in step 130.

[0110] In response to a service signal quality falling below a set threshold, a handover process is initiated; the handover process performs at least one of steps 320 or 330: Step 320: Measure and attempt to switch to the corresponding neighboring cell in descending order of the switching priority.

[0111] In this embodiment, after a handover is triggered, the terminal's measurement and access attempt behavior is strictly guided by the received neighbor cell priority information. It will evaluate and attempt each neighbor cell in descending order of priority.

[0112] For example, the neighbor list stored in the terminal contains multiple high-priority neighbor cells and multiple low-priority neighbor cells. After initiating a handover, it first measures the signals of all high-priority neighbor cells in sequence. If a high-priority neighbor cell's signal meets the requirements, it attempts to handover; if none of the high-priority neighbor cells meet the requirements, it then measures the low-priority neighbor cells in sequence.

[0113] In another embodiment, instead of pre-grouping neighboring cells, the terminal directly measures the signal and attempts to handover one by one according to the handover priority from high to low. That is, the terminal starts measuring from the neighboring cell with the highest handover priority. If the signal of the neighboring cell meets the conditions, it immediately attempts to handover; if it does not meet the conditions, it continues to measure the neighboring cell with the next highest handover priority, and so on, until a usable neighboring cell is found or all neighboring cells have been traversed.

[0114] The terminal side executes and responds to the network side's guidance strategy by measuring and attempting to switch to the corresponding neighboring cell in descending order of the switching priority.

[0115] In one embodiment, switching to the corresponding neighboring cell is measured and attempted sequentially from high to low according to the switching priority, specifically as follows: Perform signal measurements on neighboring cells; If the signal measurement results of all higher priority neighboring cells do not meet the handover conditions, then the signal measurement of neighboring cells with lower handover priority will be performed.

[0116] In this embodiment, the "measure and try sequentially" process in step 320 is defined in more specific stages. It divides the entire process into two sequentially executed stages: the first stage specifically handles the higher-priority neighbor cell group; only when all neighbor cells in the group do not meet the switching conditions does it enter the second stage to handle the lower-priority neighbor cell group.

[0117] For example, the terminal divides all neighboring cells into a "high-priority group" and a "low-priority group". During handover, it first completes the measurement and evaluation of all neighboring cells in the "high-priority group". Only when the signal strength of all neighboring cells in the high-priority group is below the handover threshold will it begin measuring the neighboring cells in the low-priority group.

[0118] The specific implementation specifies the handover search process as two stages with clearly defined transition conditions. The first stage involves measuring the signal of neighboring cells with higher handover priority. The decision to transition from the first stage to the second stage is triggered when the signal measurement results of all higher-priority neighboring cells do not meet the handover conditions. The second stage then begins by measuring the signal of neighboring cells with lower handover priority.

[0119] Step 330: If the neighbor cell information corresponding to the neighbor cell is insufficient to support connection establishment, generate and send an information request for the neighbor cell, and receive the complete access information of the neighbor cell.

[0120] The embodiments described in this application are consistent with those described in step 140.

[0121] Figure 4 This is a schematic diagram of an embodiment of a service base station equipment.

[0122] This application also proposes a serving base station device for implementing the method of any embodiment of this application. The serving base station device is configured to: configure at least two handover priorities for multiple neighboring cells; periodically reserve air interface resource units in the radio channel; send neighboring cell information to a terminal device in the air interface resource units according to the handover priority from high to low, and / or ensure that the integrity of the neighboring cell information with high handover priority is not lower than the integrity of the neighboring cell information with low handover priority; and, in response to receiving an information request from a terminal device for a neighboring cell, send complete access information of the neighboring cell to the terminal device.

[0123] To implement the above technical solution, this application proposes a service base station device 400, which includes a base station transmitting module 401, a base station determining module 402, and a base station receiving module 403 connected to each other.

[0124] The base station transmitting module is configured to transmit multiple neighbor cell information to the terminal-side device in the air interface resource unit; and is also configured to, in response to the information request received by the base station receiving module, transmit the complete access information of the requested neighbor cell to the terminal-side device.

[0125] The base station determination module is configured to configure at least two handover priorities for multiple neighboring cells; it is also configured to determine air interface resource units periodically reserved in the radio channel; and it is also configured to determine the strategy executed when transmitting neighboring cell information in the air interface resource units, wherein the strategy is at least one of the following: transmitting from high to low according to the handover priority; and ensuring that the integrity of neighboring cell information with high handover priority is not lower than the integrity of neighboring cell information with low handover priority.

[0126] The base station receiving module is used to receive information requests for a neighboring cell from the terminal-side device.

[0127] The specific methods for implementing the functions of the base station transmitting module, the base station determining module, and the base station receiving module are as described in the various method embodiments of this application, and will not be repeated here.

[0128] The service base station equipment described in this application may refer to base station facilities, other network equipment or servers connected to the base station, or a system that provides services to the aforementioned service base station equipment. It may also refer to any system, subsystem, module, circuit, chip or software operating device that provides information reception, transmission, identification and processing for the aforementioned service base station equipment.

[0129] Figure 5 This is a schematic diagram of an embodiment of the terminal-side device.

[0130] This application also proposes a terminal-side device for implementing the method of any embodiment of this application. The terminal-side device is configured to: receive, in the air interface resource unit of a wireless channel, information from a serving base station containing multiple neighboring cells with handover priorities; initiate a handover process in response to a service signal quality lower than a set threshold, the handover process including: sequentially measuring and attempting to hand over to the corresponding neighboring cell according to the handover priority from high to low; and / or, if the neighboring cell information of the corresponding target neighboring cell is insufficient to support connection establishment, generate and send an information request for the neighboring cell to the serving base station.

[0131] To implement the above technical solution, this application proposes a terminal-side device 500, which includes a terminal transmitting module 501, a terminal determining module 502, and a terminal receiving module 503 that are interconnected.

[0132] The terminal receiving module is configured to receive multiple neighbor cell information from the serving base station in the air interface resource unit of the wireless channel; the multiple neighbor cell information has at least two handover priorities; and receive complete access information in response to the information request.

[0133] The terminal determination module is configured to determine to initiate a handover process in response to a service signal quality lower than a set threshold; and is further configured to determine, during the handover process, at least one of the following operations: measure and attempt to switch to the corresponding neighboring cell in descending order of handover priority; if the neighboring cell information of the corresponding neighboring cell to be switched to is insufficient to support connection establishment, then determine to generate an information request for that neighboring cell.

[0134] The terminal sending module is used to send the information request generated by the terminal determining module to the serving base station.

[0135] The specific methods for implementing the functions of the terminal sending module, the terminal determining module, and the terminal receiving module are as described in the various method embodiments of this application, and will not be repeated here.

[0136] The terminal-side device described in this application may refer to a user equipment (UE), a personal mobile terminal, a smart terminal, a mobile phone, a computer with communication functions, or a system that provides services to the aforementioned terminal-side device. It may also refer to any system, subsystem, module, circuit, chip, or software running device that provides information reception, transmission, identification, and processing for the aforementioned terminal-side device.

[0137] This application Figure 6 A schematic diagram of a serving base station device according to another embodiment of this application is shown. As shown, the serving base station device 600 includes a processor 601, a wireless interface 602, and a memory 603. The wireless interface may consist of multiple components, including a transmitter and a receiver, providing a unit for communication with various other devices over a transmission medium. The wireless interface implements communication functions with the terminal-side device, processes wireless signals through receiving and transmitting devices, and the data carried by the signals is communicated with the memory or processor via an internal bus structure. The memory 603 contains a computer program that executes any embodiment of this application, and the computer program runs or modifies the processor 601. When the memory, processor, and wireless interface circuit are connected through a bus system, the bus system includes a data bus, a power bus, a control bus, and a status signal bus, which will not be described in detail here.

[0138] Figure 7 This is a block diagram of a terminal-side device according to another embodiment of this application. The terminal-side device 700 includes at least one processor 701, a memory 702, a user interface 703, and at least one network interface 704. The various components in the terminal-side device 700 are coupled together via a bus system. The bus system is used to implement communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

[0139] User interface 703 may include a display, keyboard, or clicking device, such as a mouse, trackball, touchpad, or touchscreen.

[0140] The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application programs include various applications, such as media players and browsers, used to implement various application functions.

[0141] In this embodiment of the application, the memory 702 contains a computer program that executes any embodiment of the application, and the computer program runs on or modifies the processor 701.

[0142] The memory 702 includes a computer-readable storage medium. The processor 701 reads the information in the memory 702 and, in conjunction with its hardware, completes the steps of the above-described method. Specifically, the computer-readable storage medium stores a computer program, which, when executed by the processor 701, implements the steps of the method embodiments described in any of the above embodiments.

[0143] The processor 701 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the method described in this application can be completed by the integrated logic circuitry in the hardware of the processor 701 or by instructions in software form. The processor 701 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of this application can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor.

[0144] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. In a typical configuration, the device of this application includes one or more processors (CPUs), an input / output user interface, a network interface, and memory.

[0145] Furthermore, this application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0146] Therefore, this application also proposes a computer-readable medium storing a computer program that, when executed by a processor, implements the steps of the method described in any embodiment of this application. For example, the memory 603, 702 of this application may include non-permanent memory in the form of computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM.

[0147] Based on the embodiments of the above-described apparatus in this application, this application also proposes a mobile communication system, including at least one embodiment of any terminal-side device in this application and / or at least one embodiment of any serving base station device in this application.

[0148] It should be noted that the specific mobile communication technology described in this application is not limited and can be WCDMA, CDMA2000, TD-SCDMA, WiMAX, LTE / LTE-A, LAA, MuLTEfire, and subsequent fifth-generation, sixth-generation, and Nth-generation mobile communication technologies.

[0149] The terminal described in this application refers to a terminal-side product that can support the communication protocols of terrestrial mobile communication systems, and a specially designed wireless modem module that can be integrated into various types of terminal forms such as mobile phones, tablets, and data cards to complete communication functions.

[0150] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0151] Those skilled in the art will understand that, unless otherwise stated, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be understood that when a device or component is “connected” to another device or component, it may be directly connected to the other device or component, or there may be an intermediary device or component. Furthermore, the term “connection” as used herein may include partially wireless connections as well as partially wired connections.

[0152] In the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0153] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for hierarchical processing of air interface neighbor regions, characterized in that, Includes the following steps: The serving base station periodically reserves air interface resource units in the wireless channel and configures at least two handover priorities for multiple neighboring cells; The serving base station sends multiple neighbor cell information of the serving base station to the terminal side device in the air interface resource unit, and performs at least one of the following when sending: sending from high to low according to the handover priority; ensuring that the integrity of the neighbor cell information with high handover priority is not lower than the integrity of the neighbor cell information with low handover priority. The terminal-side device receives the neighbor cell information in the air interface resource unit; In response to a service signal quality falling below a set threshold, the terminal device initiates a handover process; the handover process includes at least one of the following operations: measuring and attempting to hand over to the corresponding neighboring cell in descending order of handover priority; If the information of a neighboring cell is insufficient to support connection establishment, an information request for that neighboring cell is generated and sent to the serving base station. In response to receiving an information request for a neighboring cell, the serving base station sends complete access information for that neighboring cell to the terminal device.

2. An air interface neighbor classification processing method for serving a base station, characterized in that, Includes the following steps: Configure at least two handover priorities for multiple neighboring cells; In the wireless channel, air interface resource units are periodically reserved; When transmitting multiple neighbor cell information in the air interface resource unit, at least one of the following is performed: Neighboring cell information is sent in descending order of transmission priority. Ensure that the integrity of neighbor cell information with high handover priority is no less than that of neighbor cell information with low handover priority. In response to receiving an information request for one of the neighboring cells, complete access information for that neighboring cell is sent.

3. The air interface neighbor classification processing method according to claim 1 or 2, characterized in that, The air interface resource unit is a fixed position time slot reserved in the voice service frame structure for in-line control information.

4. The air interface neighbor classification processing method according to claim 1 or 2, characterized in that, Different transmission guarantee strategies are set for the neighboring cells with different handover priorities.

5. The air interface neighbor classification processing method according to claim 1 or 2, characterized in that, When transmitting the neighbor cell information in the air interface resource unit, if the transmission resources are insufficient to carry the complete access information of all neighbor cells within one cycle, the complete access information of neighbor cells with high handover priority will be transmitted first.

6. The air interface neighbor classification processing method according to claim 1 or 2, characterized in that, When voice transmission accompanies the service channel, only the complete access information of high-handover-priority neighboring cells is transmitted.

7. A method for hierarchical processing of air interface neighboring regions, used in terminal-side equipment, characterized in that, Includes the following steps: In the air interface resource unit of the wireless channel, information from multiple neighboring cells of the serving base station is received; Multiple neighboring cell information has at least two handover priorities; In response to a service signal quality falling below a set threshold, a handover process is initiated. The switching process includes at least one of the following operations: Based on the switching priority, the corresponding neighboring cells are measured and attempted to be switched to in descending order of priority. If the information of a neighboring cell is insufficient to support the establishment of a connection, an information request for that neighboring cell is generated and sent, and the complete access information of that neighboring cell is received.

8. The air interface neighbor classification processing method according to claim 1 or 7, characterized in that, Based on the switching priority, the system measures and attempts to switch to the corresponding neighboring cell in descending order of priority, including: Perform signal measurements on neighboring cells; When the signal measurement results of the neighboring cell with a higher handover priority do not meet the handover conditions, signal measurement is performed on the neighboring cell with a lower handover priority.

9. A serving base station device, used to implement the air interface neighbor classification processing method according to any one of claims 1 to 6, characterized in that, Include: The base station receiving module is used to receive information requests for a neighboring cell from the terminal-side equipment; The base station determination module is configured to configure at least two handover priorities for multiple neighboring cells; it is also configured to determine air interface resource units periodically reserved in the radio channel; and it is also configured to determine the strategy to be executed when transmitting neighboring cell information in the air interface resource units, the strategy being at least one of the following: transmitting from high to low according to the handover priority; ensuring that the integrity of neighboring cell information with high handover priority is not lower than the integrity of neighboring cell information with low handover priority. The base station transmitting module is configured to transmit multiple neighbor cell information in the air interface resource unit; and to transmit complete access information of the neighbor cell in response to receiving an information request for one of the neighbor cells.

10. A terminal-side device for implementing the air interface neighbor classification and hierarchical processing method according to claim 1, 7, or 8, characterized in that, Include: The terminal receiving module is used to receive multiple neighbor cell information from the serving base station in the air interface resource unit of the wireless channel; Multiple neighboring cell information has at least two handover priorities; The terminal determination module is used to determine and initiate a handover process in response to a service signal quality falling below a set threshold. It is also used to determine, in the handover process, at least one of the following operations: measuring and attempting to handover to the corresponding neighboring cell in descending order of handover priority; If the information of a neighboring cell is insufficient to support the establishment of a connection, then an information request for that neighboring cell will be generated. The terminal sending module is used to send the information request to the serving base station.

11. A communication device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any one of claims 1 to 8.

12. A computer-readable medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the method as described in any one of claims 1 to 8.

13. A mobile communication system comprising at least one serving base station device as described in claim 9 and / or at least one terminal-side device as described in claim 10.

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