CN113438715A - Network searching method and device, computer readable storage medium and terminal - Google Patents
Network searching method and device, computer readable storage medium and terminal Download PDFInfo
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- CN113438715A CN113438715A CN202110730225.2A CN202110730225A CN113438715A CN 113438715 A CN113438715 A CN 113438715A CN 202110730225 A CN202110730225 A CN 202110730225A CN 113438715 A CN113438715 A CN 113438715A
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Abstract
A network searching method and device, a computer readable storage medium and a terminal are provided, and the network searching method comprises the following steps: after a wireless link is established, acquiring a communication beam pair currently used, wherein the communication beam pair comprises a transmitting beam and a receiving beam, the transmitting beam has a transmitting number, and the receiving beam has a receiving number; generating a plurality of sets of beam pairs, the sets of beam pairs corresponding to the search radius, each set of beam pairs comprising a plurality of search beam pairs; searching an available beam pair in a beam pair set corresponding to the search radius according to the sequence of the search radius when the wireless link is interrupted, wherein the signal intensity of the available beam pair is greater than a preset threshold; a new radio link is re-established using the available beam pairs. By the technical scheme of the invention, the flexibility of network searching can be improved when a wireless link is interrupted.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a network searching method and apparatus, a computer-readable storage medium, and a terminal.
Background
In a fifth generation mobile communication (5th generation mobile networks or 5th generation wireless systems,5G) system, when a terminal device moves, a wireless link may be interrupted or disconnected.
The current method is an exhaustive search method, that is, all SSB bursts are measured once according to the index sequence of the burst sets (index) of the Synchronization Signal Block (SSB), and are sorted according to the Signal strength, and the terminal selects the access with the strongest Signal strength. If the access fails, the next strongest SSB burst is accessed, and so on.
However, in the prior art, the exhaustive search method needs to measure the SSB bursts in the SSB burst set one by one, and the measurement mode is single.
Disclosure of Invention
The invention solves the technical problem of how to improve the flexibility of network searching when the wireless link is interrupted.
In order to solve the above technical problem, an embodiment of the present invention provides a network searching method, where the network searching method includes: after a wireless link is established, acquiring a communication beam pair currently used, wherein the communication beam pair comprises a transmitting beam and a receiving beam, the transmitting beam has a transmitting number, and the receiving beam has a receiving number; generating a plurality of beam pair sets, wherein the beam pair sets correspond to search radiuses, each beam pair set comprises a plurality of search beam pairs, the maximum distance between the number of a transmitting beam in each search beam pair in each beam pair set and the number of a transmitting beam in the communication beam pair is the search radius corresponding to the beam pair set, and/or the maximum distance between the number of a receiving beam in each search beam pair in each beam pair set and the number of a receiving beam in the communication beam pair is the search radius corresponding to the beam pair set; searching an available beam pair in a beam pair set corresponding to the search radius according to the sequence of the search radius when the wireless link is interrupted, wherein the signal intensity of the available beam pair is greater than a preset threshold; a new radio link is re-established using the available beam pairs.
Optionally, the generating a plurality of sets of beam pairs includes: and sequentially determining a beam pair set corresponding to each search radius according to the size sequence of the search radii, wherein the maximum value of the search radii is m/2, and m is the total number of the transmitted beams or the received beams.
Optionally, the generating a plurality of sets of beam pairs includes: determining the search radius to be 1; determining an initial beam pair set corresponding to the search radius, wherein a distance between a transmission beam number in a search beam pair in the initial beam pair set and a transmission beam number in the communication beam pair is 0 or 1, and a distance between a reception beam number in the search beam pair in the initial beam pair set and a reception beam number in the communication beam pair is 0 or 1; iteratively judging whether the search radius is smaller than m/2, wherein m is the total number of the transmitting beams or the receiving beams, adding 1 to the search radius when the initial search radius is smaller than m/2, and determining a beam pair set corresponding to the search radius until the search radius is larger than m/2.
Optionally, after determining the set of beam pairs corresponding to the search radius, the method further includes: and randomly arranging the search beam pairs in the beam pair set to obtain a random beam pair set.
Optionally, the network searching method further includes: saving the available beam pair to use the available beam pair as the communication beam pair for the next time.
Optionally, the network searching method further includes: acquiring the available beam pair after the new wireless link is established, and determining the available beam pair as a new communication beam pair; generating a plurality of new sets of beam pairs using the new communication beam pairs.
Optionally, the preset threshold is an antenna sensitivity of the receiving antenna.
An embodiment of the present invention further provides a network searching apparatus, where the network searching apparatus includes: an obtaining module, configured to obtain, after a wireless link is established, a communication beam pair currently in use, where the communication beam pair includes a transmit beam and a receive beam, the transmit beam has a transmit number, and the receive beam has a receive number; a beam pair set generating module, configured to generate a plurality of beam pair sets, where each beam pair set includes a plurality of search beam pairs, and a maximum distance between a number of a transmit beam in a search beam pair in each beam pair set and a number of a transmit beam in the communication beam pair is a search radius corresponding to the beam pair set, and/or a maximum distance between a number of a receive beam in the search beam pair in each beam pair set and a number of a receive beam in the communication beam pair is a search radius corresponding to the beam pair set; a searching module, configured to search, when the wireless link is interrupted, an available beam pair in a beam pair set corresponding to the search radius according to the sequence of the search radius, where a signal strength of the available beam pair is greater than a preset threshold; an establishing module for reestablishing a new wireless link using the pair of available beams.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the network searching method.
The embodiment of the invention also provides a terminal, which comprises a memory and a processor, wherein the memory is stored with a computer program capable of running on the processor, and the processor executes the steps of the network searching method when running the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the technical scheme of the invention, a plurality of beam pair sets are constructed before the wireless link is interrupted, the beam pair sets correspond to the search radius, and the smaller the search radius is, the closer the distance between the search beam pair in the beam pair sets and the communication beam pair is; when the radio link is broken, the available beam pairs may be searched directly within the set of beam pairs to re-establish a new radio link. Compared with the prior art that all SSB bursts are measured, the technical scheme of the invention is that a plurality of beam pair sets are constructed in advance for the beams to be searched according to the search radius, different beam pair sets have different numbers of beam pairs, and the beam pairs are searched in sequence in the constructed beam pair sets, so that the flexibility of network searching is improved; in addition, compared with the number of all beams in the beam scanning process which needs to be measured in the prior art, the number of the beam pairs in the beam pair set corresponding to the maximum search radius is less in the technical scheme of the invention, or the search is started from the beam pair set with the minimum search radius, so that the search amount for finding the available beam pairs can be reduced, the available beam pairs can be quickly determined, the wireless link can be quickly established for access, and the user experience is improved.
Further, after the new wireless link is established, acquiring the available beam pair, and determining the available beam pair as a new communication beam pair; generating a plurality of new sets of beam pairs using the new communication beam pairs. According to the technical scheme, the new beam pair set is established after the wireless link is established, so that the available beam pairs can be timely and quickly searched when the wireless link is interrupted next time, the wireless link is established as soon as possible, and the user experience is improved.
Drawings
Fig. 1 is a flowchart of a network searching method according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating an exemplary application scenario of the present invention;
FIG. 3 is a diagram illustrating another exemplary application scenario of an embodiment of the present invention;
FIG. 4 is a flowchart of one embodiment of step S102 shown in FIG. 1;
fig. 5 is a schematic structural diagram of a network searching apparatus according to an embodiment of the present invention.
Detailed Description
As described in the background art, the exhaustive search method in the prior art needs to measure SSB bursts in the SSB burst set one by one, and the measurement mode is single.
The inventor of the application also finds that the exhaustive search method in the prior art also has the problem of slow network searching speed, and the more SSB burst sets, the slower the processing speed. In addition, since the terminal is moving and the signal strength is changing, if the processing is slow, the network cannot be quickly searched back again, and the user experience is deteriorated.
According to the technical scheme, a plurality of beam pair sets are constructed in advance for beams to be searched according to the search radius, different beam pair sets have different numbers of beam pairs, and the beam pairs are searched in the constructed beam pair sets in sequence, so that the flexibility of network searching is improved; in addition, compared with the number of all beams in the beam scanning process which needs to be measured in the prior art, the number of the beam pairs in the beam pair set corresponding to the maximum search radius is less in the technical scheme of the invention, or the search is started from the beam pair set with the minimum search radius, so that the search amount for finding the available beam pairs can be reduced, the available beam pairs can be quickly determined, the wireless link can be quickly established for access, and the user experience is improved.
The term "transmit beam" in the embodiments of the present invention refers to a beam transmitted by a base station through an antenna array.
The term "receiving beam" in the embodiments of the present invention refers to a beam received by a terminal through an antenna array.
The technical scheme of the invention can be applied to 5G (5Generation) communication systems, 4G and 3G communication systems, and various future new communication systems such as 6G and 7G.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a network searching method according to an embodiment of the present invention.
The embodiments of the present invention may be used at a User Equipment (UE) side, that is, the terminal device may execute each step of the method shown in fig. 1. The terminal device may include, but is not limited to, a mobile phone, a computer, a tablet computer, and the like.
Specifically, the network searching method may include the following steps:
step S101: after a wireless link is established, acquiring a communication beam pair currently used, wherein the communication beam pair comprises a transmitting beam and a receiving beam, the transmitting beam has a transmitting number, and the receiving beam has a receiving number;
step S102: generating a plurality of beam pair sets, wherein the beam pair sets correspond to search radiuses, each beam pair set comprises a plurality of search beam pairs, the maximum distance between the number of a transmitting beam in each search beam pair in each beam pair set and the number of a transmitting beam in the communication beam pair is the search radius corresponding to the beam pair set, and/or the maximum distance between the number of a receiving beam in each search beam pair in each beam pair set and the number of a receiving beam in the communication beam pair is the search radius corresponding to the beam pair set;
step S103: searching an available beam pair in a beam pair set corresponding to the search radius according to the sequence of the search radius when the wireless link is interrupted, wherein the signal intensity of the available beam pair is greater than a preset threshold;
step S104: a new radio link is re-established using the available beam pairs.
It should be noted that the sequence numbers of the steps in this embodiment do not represent a limitation on the execution sequence of the steps.
In the embodiment of the invention, after the wireless link is established, the base station and the UE communicate through the transmitting beam and the receiving beam. Specifically, the transmitting end transmits a beam Si, and the receiving end receives a beam Rj, so that the transmitting beam Si and the receiving beam Rj (Si, Rj) may be defined as a communication beam pair, where i is the ith beam of the transmitting end, and j is the jth beam of the receiving end. Where i is the number of the transmit beam and j is the number of the receive beam. The value range of the number of the transmission beam depends on the number of the base station side antennas, and the value range of the number of the reception beam depends on the number of the terminal device side antennas.
In one non-limiting embodiment of the invention, the proximity of the two beams by number indicates that the two beams are spatially adjacent; it can also be said that two beams that are spatially adjacent have adjacent numbers. Specifically, the smaller the distance between the transmission numbers of the two transmission beams is, the closer the two transmission beams are in the space is; the smaller the distance between the transmission numbers of the two reception beams, the closer the two reception beams are located in space.
In an implementation of step S102, after the radio link is established and before the radio link is interrupted, a plurality of sets of beam pairs are generated. The plurality of sets of beam pairs are used for the terminal device to search for available beam pairs. Each set of beam pairs corresponds to a search radius. The search radius represents a maximum distance between a transmit beam in the set and a number of transmit beams of the communication beam pair and also represents a maximum distance between a receive beam in the set and a number of receive beams of the communication beam pair.
Further, the search beam pairs in the beam pair sets corresponding to different search radii do not overlap. In this case, the number of search beam pairs included in any beam pair set is smaller than the number of beams in the SSB burst that need to be measured in the prior art.
The smaller the search radius is, the closer the search beam pair in the beam pair set corresponding to the search radius is to the communication beam pair. The smaller the search radius, the fewer the number of search beam pairs within the set of beam pairs corresponding to the search radius.
For example, when the communication beam pair is (Si, Rj) and the search radius is 1, the beam pair set may include the following search beam pairs { (Si-1, Rj-1), (Si-1, Rj), (Si-1, Rj +1), (Si, Rj-1), (Si, Rj +1), (Si +1, Rj-1), (Si +1, Rj), (Si +1, Rj +1) }.
Further, when the radio link is interrupted in step S103, available beam pairs may be searched for directly within the beam pair sets corresponding to the respective search radii, and a new radio link may be reestablished using the available beam pairs in step S104.
In a specific implementation, the available beam pairs may be searched in the beam pair set corresponding to the search radius according to the size order of the search radius.
In a preferred embodiment, the available beam pairs may be searched in order of smaller to larger search radius. Since the smaller the search radius is, the smaller the number of search beam pairs in the beam pair set corresponding to the search radius is, the smaller the search radius is, and therefore, by searching for available beam pairs in the beam pair set corresponding to the minimum search radius in advance, the search amount can be reduced, and the access speed can be increased. In addition, the smaller the search radius is, the closer the search beam pair in the beam pair set corresponding to the search radius is to the communication beam pair, the closer the available beam pair determined in the beam pair set is to the communication beam pair, that is, the available beam pair is a neighboring beam of the communication beam pair, thereby ensuring the reliability of communication.
It should be noted that, in a specific implementation, the available beam pairs may also be searched in order of a search radius from large to small, and this is not limited in the embodiment of the present invention.
In particular implementations, the signal strength of the available beam pair may be represented by the signal strength of the receive beam in the available beam pair. The signal strength of the receive beam may be measured by the terminal. When a search beam pair with a signal strength greater than a preset threshold is found in the beam pair set, the search beam pair can be determined to be an available beam pair.
In one non-limiting embodiment, when the signal strength of the search beam pair (Si, Rj) is greater than the antenna receive sensitivity, the beam pair is said to be an available beam pair. Wherein the terminal device is capable of predetermining its antenna reception sensitivity, which is pre-stored in said terminal device.
For the specific implementation of measuring the beam intensity, reference may be made to the prior art, and the detailed description is omitted here.
The embodiment of the invention can be called as a searching method based on adjacent beams, particularly searches for adjacent beams by taking the beams before the interruption of a wireless link as a center, and gradually increases the searching range. According to the embodiment of the invention, the search amount for finding the available beam pair can be reduced through the pre-constructed beam pair set, so that the available beam pair can be quickly determined, a wireless link can be quickly established for access, and the user experience is improved.
The set of beam pairs according to an embodiment of the invention is described below with reference to fig. 2 and 3.
In wireless communications, the base station is typically an antenna array transmission, such as the Beam Sweeping process (Beam Sweeping) shown in fig. 2. The terminal may be able to receive signals in multiple directions at the same location. In the time domain, as shown in fig. 3, each number represents an SSB signal. The embodiment of the invention takes the case that there are 8 SSB indexes as an example, and the SSB burst set is transmitted periodically.
As shown in fig. 2, there are 8 transmission beams, i.e., transmission beams S0, S1, S2, S3, S4, S5, S6, and S7. The transmission numbers of the transmission beams are 0/1/2/3/4/5/6/7 respectively.
It will be appreciated that the principle of the receive beam is similar to that of the transmit beam and will not be described in detail here.
In one non-limiting embodiment of the present invention, step S102 shown in fig. 1 may include the following steps: and sequentially determining a beam pair set corresponding to each search radius according to the size sequence of the search radii, wherein the maximum value of the search radii is m/2, and m is the total number of the transmitted beams or the received beams.
Specifically, the search radius has a minimum value of 1 and a maximum value of m/2. First, a set of beam pairs with a search radius of 1, i.e., { (Si-1, Rj-1), (Si-1, Rj), (Si-1, Rj +1), (Si, Rj-1), (Si, Rj +1), (Si +1, Rj-1), (Si +1, Rj), (Si +1, Rj +1) }isdetermined. Then, a set of beam pairs with a search radius of 2, i.e., { (Si-2, Rj-2), (Si-2, Rj-1), (Si-2, Rj), (Si-2, Rj +1), (Si-2, Rj +2), (Si +2, Rj-2), (Si +2, Rj-1), (Si +2, Rj), (Si +2, Rj +1), (Si +2, Rj +2) }isdetermined. And so on until the search radius is determined
A set of corresponding pairs of beams is selected,
indicating a rounding down.
Correspondingly, when searching for available beam pairs, firstly searching in a beam pair set with a search radius of 1; if no available beam pair is found, then a search is performed within the set of beam pairs having a search radius of 2, and so on, until an available beam pair is searched. The process of searching for available beam pairs is also a process of comparing the signal strength of the search beam pairs in the set with a preset threshold.
In a non-limiting embodiment of the present invention, referring to fig. 4, step S102 shown in fig. 1 may include steps S401 to S406.
In step S401, the search radius is determined to be 1.
In step S402, an initial beam pair set corresponding to the search radius is determined, a distance between a transmission beam number in a search beam pair in the initial beam pair set and a transmission beam number in the communication beam pair is 0 or 1, and a distance between a reception beam number in a search beam pair in the initial beam pair set and a reception beam number in the communication beam pair is 0 or 1.
And then iteratively judging whether the search radius is smaller than m/2, wherein m is the total number of the transmitting beams or the receiving beams, adding 1 to the search radius when the initial search radius is smaller than m/2, and determining a beam pair set corresponding to the search radius until the search radius is larger than m/2.
Specifically, in step S403, it is determined whether the search radius is smaller than m/2, if so, step S404 is executed, otherwise, step S406 is executed.
In step S404, the search radius is increased by 1.
In step S405, a set of beam pairs corresponding to the search radius is determined.
In step S406, the generated plurality of beam pair sets are stored.
In specific implementation, the initial value of the search radius L is 1, and a beam pair set with the search radius L is generated: { (Si-1, Rj-1) (Si-1, Rj) (Si-1, Rj +1), (Si, Rj-1) (Si, Rj +1), (Si +1, Rj-1) (Si +1, Rj) (Si +1, Rj +1) }. Judging whether the current searching radius L is smaller than m/2, if so, changing L to L +1, and continuing to generate a beam pair set; otherwise, the generated plurality of beam pair sets are saved.
Further, the search beam pairs in the beam pair set may be randomly arranged to obtain a random beam pair set.
In this embodiment, by randomly arranging the search beam pairs in the set, randomness for subsequently searching the search beam pairs in the set can be realized, and reliability of available beam search can be ensured.
Specifically, when the wireless link transmission is interrupted, the receiving end searches the beam pair set one by using L as a search radius, the initial value of L is 1, and when an available beam pair is searched, the searching process is ended, and communication is performed by using the beam pair.
In one non-limiting embodiment of the present invention, the available beam pair may also be saved to be the next communication beam pair.
Further, after the new wireless link is established, acquiring the available beam pair, and determining the available beam pair as a new communication beam pair; generating a plurality of new sets of beam pairs using the new communication beam pairs.
In this embodiment, after the link is reestablished, the current beam pair (i.e., the available beam pair) is stored, and the next beam pair set is continuously generated.
In a specific embodiment of the present invention, after the wireless connection is established, the currently used beam information is acquired to generate the search set, and is stored. When the link is broken, the search is performed in the order of the beams in the beam search set. When the available beam pairs are searched, the beam searching is finished, and the reconstructed beam information is used as input information of the next beam searching to regenerate the beam searching set.
Referring to fig. 5, an embodiment of the present invention further discloses a network searching apparatus 50, where the network searching apparatus 50 may include:
an obtaining module 501, configured to obtain, after a wireless link is established, a communication beam pair currently in use, where the communication beam pair includes a transmit beam and a receive beam, the transmit beam has a transmit number, and the receive beam has a receive number;
a beam pair set generating module 502, configured to generate a plurality of beam pair sets, each beam pair set corresponding to a search radius, each beam pair set including a plurality of search beam pairs, a maximum distance between a number of a transmit beam in a search beam pair in each beam pair set and a number of a transmit beam in the communication beam pair is a search radius corresponding to the beam pair set, and/or a maximum distance between a number of a receive beam in a search beam pair in each beam pair set and a number of a receive beam in the communication beam pair is a search radius corresponding to the beam pair set;
a searching module 503, configured to search, when the wireless link is interrupted, an available beam pair in a beam pair set corresponding to the search radius according to the sequence of the search radius, where a signal strength of the available beam pair is greater than a preset threshold;
a setup module 504 for re-establishing a new radio link using the available beam pair.
In the embodiment of the invention, a plurality of beam pair sets are constructed before the wireless link is interrupted, the beam pair sets correspond to the search radius, and the smaller the search radius is, the closer the distance between the search beam pair in the beam pair sets and the communication beam pair is; when the radio link is broken, the available beam pairs may be searched directly within the set of beam pairs to re-establish a new radio link. Compared with the prior art in which all SSB bursts are measured, the method and the device for determining the available beam pairs can reduce the search amount for finding the available beam pairs through the pre-constructed beam pair set, so that the available beam pairs are determined quickly, a wireless link is established quickly for access, and the user experience is improved.
In a specific embodiment, the beam pair set generating module 502 may include: a radius determining unit for determining that the search radius is 1; an initial beam pair set determining unit, configured to determine an initial beam pair set corresponding to the search radius, where a distance between a transmission beam number in a search beam pair in the initial beam pair set and a transmission beam number in the communication beam pair is 0 or 1, and a distance between a reception beam number in the search beam pair in the initial beam pair set and a reception beam number in the communication beam pair is 0 or 1; and the iteration unit is used for iteratively judging whether the search radius is smaller than m/2, wherein m is the total number of the transmitting beams or the receiving beams, when the initial search radius is smaller than m/2, the search radius is added by 1, and the beam pair set corresponding to the search radius is determined until the search radius is larger than m/2.
In a specific embodiment, the beam pair set generating module 502 may further include: and the random arrangement unit is used for randomly arranging the search beam pairs in the beam pair set to obtain a random beam pair set.
For more details of the operation principle and the operation mode of the network searching apparatus 50, reference may be made to the relevant descriptions in fig. 1 to fig. 2, which are not described herein again.
In a specific implementation, the network searching device 50 may correspond to a Chip having a network searching function in a terminal device, such as a System-On-a-Chip (SOC), a baseband Chip, or the like; or the terminal equipment comprises a chip module with a network searching function; or to a chip module having a chip with a data processing function, or to a terminal device.
Each module/unit included in each apparatus and product described in the above embodiments may be a software module/unit, or may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit. For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device or product applied to or integrated with the chip module, each module/unit included in the device or product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented by using a software program running on a processor integrated within the chip module, and the rest (if any) of the modules/units may be implemented by using hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.
The embodiment of the present invention also discloses a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium, and when the computer program runs, the steps of the network searching method shown in fig. 1 or fig. 4 may be executed. The storage medium may include ROM, RAM, magnetic or optical disks, etc. The storage medium may further include a non-volatile memory (non-volatile) or a non-transitory memory (non-transient), and the like.
The embodiment of the invention also discloses terminal equipment which can comprise a memory and a processor, wherein the memory is stored with a computer program which can run on the processor. The processor, when running the computer program, may perform the steps of the network searching method shown in fig. 1 or fig. 4. The terminal device includes, but is not limited to, a mobile phone, a computer, a tablet computer, and other terminal devices.
The technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, Vehicle-to-event architecture, and the like.
A Base Station (BS) in the embodiment of the present application, which may also be referred to as a base station device, is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, a device providing a base station function in a 2G network includes a Base Transceiver Station (BTS), a device providing a base station function in a 3G network includes a node b (nodeb), apparatuses for providing a base station function in a 4G network include evolved node bs (enbs), which, in a Wireless Local Area Network (WLAN), the devices providing the base station function are an Access Point (AP), a device gNB providing the base station function in a New Radio (NR) of 5G, and a node B (ng-eNB) continuing to evolve, the gNB and the terminal communicate with each other by adopting an NR (NR) technology, the ng-eNB and the terminal communicate with each other by adopting an E-UTRA (evolved Universal Terrestrial Radio Access) technology, and both the gNB and the ng-eNB can be connected to a 5G core network. The base station in the embodiment of the present application also includes a device and the like that provide a function of the base station in a future new communication system.
The base station controller in the embodiment of the present application is a device for managing a base station, for example, a Base Station Controller (BSC) in a 2G network, a Radio Network Controller (RNC) in a 3G network, or a device for controlling and managing a base station in a future new communication system.
The network on the network side in the embodiment of the present invention refers to a communication network providing communication services for a terminal, and includes a base station of a radio access network, a base station controller of the radio access network, and a device on the core network side.
A terminal in this embodiment may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station (mobile station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing devices connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.
The "plurality" appearing in the embodiments of the present application means two or more.
The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application.
The term "connect" in the embodiments of the present application refers to various connection manners, such as direct connection or indirect connection, to implement communication between devices, which is not limited in this embodiment of the present application.
It should be understood that, in the embodiment of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative; for example, the division of the unit is only a logic function division, and there may be another division manner in actual implementation; for example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A network searching method is characterized by comprising the following steps:
after a wireless link is established, acquiring a communication beam pair currently used, wherein the communication beam pair comprises a transmitting beam and a receiving beam, the transmitting beam has a transmitting number, and the receiving beam has a receiving number;
generating a plurality of beam pair sets, wherein the beam pair sets correspond to search radiuses, each beam pair set comprises a plurality of search beam pairs, the maximum distance between the number of a transmitting beam in each search beam pair in each beam pair set and the number of a transmitting beam in the communication beam pair is the search radius corresponding to the beam pair set, and/or the maximum distance between the number of a receiving beam in each search beam pair in each beam pair set and the number of a receiving beam in the communication beam pair is the search radius corresponding to the beam pair set;
searching an available beam pair in a beam pair set corresponding to the search radius according to the sequence of the search radius when the wireless link is interrupted, wherein the signal intensity of the available beam pair is greater than a preset threshold;
a new radio link is re-established using the available beam pairs.
2. The network searching method of claim 1, wherein the generating the plurality of sets of beam pairs comprises:
and sequentially determining a beam pair set corresponding to each search radius according to the size sequence of the search radii, wherein the maximum value of the search radii is m/2, and m is the total number of the transmitted beams or the received beams.
3. The network searching method of claim 1, wherein the generating the plurality of sets of beam pairs comprises:
determining the search radius to be 1;
determining an initial beam pair set corresponding to the search radius, wherein a distance between a transmission beam number in a search beam pair in the initial beam pair set and a transmission beam number in the communication beam pair is 0 or 1, and a distance between a reception beam number in the search beam pair in the initial beam pair set and a reception beam number in the communication beam pair is 0 or 1;
iteratively judging whether the search radius is smaller than m/2, wherein m is the total number of the transmitting beams or the receiving beams, adding 1 to the search radius when the initial search radius is smaller than m/2, and determining a beam pair set corresponding to the search radius until the search radius is larger than m/2.
4. The network searching method according to claim 3, wherein the determining the set of beam pairs corresponding to the search radius further comprises:
and randomly arranging the search beam pairs in the beam pair set to obtain a random beam pair set.
5. The network searching method according to claim 1, further comprising:
saving the available beam pair to use the available beam pair as the communication beam pair for the next time.
6. The network searching method according to claim 1, further comprising:
acquiring the available beam pair after the new wireless link is established, and determining the available beam pair as a new communication beam pair;
generating a plurality of new sets of beam pairs using the new communication beam pairs.
7. The network searching method of claim 1, wherein the predetermined threshold is an antenna sensitivity of a receiving antenna.
8. A network searching device is characterized by comprising:
an obtaining module, configured to obtain, after a wireless link is established, a communication beam pair currently in use, where the communication beam pair includes a transmit beam and a receive beam, the transmit beam has a transmit number, and the receive beam has a receive number;
a beam pair set generating module, configured to generate a plurality of beam pair sets, where each beam pair set includes a plurality of search beam pairs, and a maximum distance between a number of a transmit beam in a search beam pair in each beam pair set and a number of a transmit beam in the communication beam pair is a search radius corresponding to the beam pair set, and/or a maximum distance between a number of a receive beam in the search beam pair in each beam pair set and a number of a receive beam in the communication beam pair is a search radius corresponding to the beam pair set;
a searching module, configured to search, when the wireless link is interrupted, an available beam pair in a beam pair set corresponding to the search radius according to the sequence of the search radius, where a signal strength of the available beam pair is greater than a preset threshold;
an establishing module for reestablishing a new wireless link using the pair of available beams.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, performs the steps of the network searching method according to any one of claims 1 to 7.
10. A terminal comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the network searching method according to any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730225.2A CN113438715B (en) | 2021-06-29 | 2021-06-29 | Network searching method and device, computer readable storage medium and terminal |
| PCT/CN2021/142261 WO2023273258A1 (en) | 2021-06-29 | 2021-12-29 | Network searching method and device, computer-readable storage medium, and terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110730225.2A CN113438715B (en) | 2021-06-29 | 2021-06-29 | Network searching method and device, computer readable storage medium and terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023273258A1 (en) * | 2021-06-29 | 2023-01-05 | 展讯通信（上海）有限公司 | Network searching method and device, computer-readable storage medium, and terminal |
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| CN111510188B (en) * | 2020-03-11 | 2021-06-29 | 北京邮电大学 | Beam searching method and device |
| CN111478724A (en) * | 2020-04-15 | 2020-07-31 | 南京航空航天大学 | Three-dimensional wave beam searching method for millimeter wave platform of unmanned aerial vehicle |
| CN113438715B (en) * | 2021-06-29 | 2023-01-10 | 展讯通信（上海）有限公司 | Network searching method and device, computer readable storage medium and terminal |
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| CN105744640A (en) * | 2016-01-14 | 2016-07-06 | 南京航空航天大学 | Mobile Ad Hoc network directional time-division access protocol based on neighbor beam alignment and tracking |
| CN110268672A (en) * | 2017-02-09 | 2019-09-20 | 高通股份有限公司 | Search for the candidate in multilink control channel |
| CN109474947A (en) * | 2017-09-07 | 2019-03-15 | 展讯通信（上海）有限公司 | Measurement parameter determines method and device, readable storage medium storing program for executing, user equipment |
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| WO2023273258A1 (en) | 2023-01-05 |
| CN113438715B (en) | 2023-01-10 |
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