Uplink coverage enhancement method and device for cell edge users
By detecting and adjusting the parameters of horizontal broadcast beams, the shortcomings of 5G network in cell edge users are solved, and effective coverage and uplink coverage capabilities are improved for cell edge users.
Patent Information
- Application Number
- CN202111137840.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-09-27
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2041-09-27
AI Technical Summary
The existing 5G network has shortcomings in high-frequency band uplink coverage, especially in the coverage of cell edge users, which is difficult to effectively improve uplink coverage capabilities.
By detecting the uplink channel detection reference signal of the horizontal broadcast beam access user equipment, determine whether there is a cell edge user, and adjust the beam weight, the antenna azimuth parameter and the downtilt parameter to maximize the antenna main lobe covering the cell edge user that supplements the uplink cell.
Accurate location determination and antenna coverage optimization of cell edge users are achieved, and the uplink coverage capability of 5G network is improved.
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Figure CN115884203B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of mobile communication technology, and in particular to a method and device for enhancing uplink coverage for cell edge users. In addition, the present invention also relates to an electronic device and a processor-readable storage medium. Background Art
[0002] Mobile communication technology involves the problem of limited uplink coverage in high-frequency bands in 5G networks. The uplink enhancement technology newly added in 3GPP R15, namely the Supplementary Uplink (SUL) technology, improves the 5G uplink coverage capability by providing a supplementary low-frequency band uplink. The SUL mode can use both the 5G New Radio (NR) to transmit uplink data and the SUL frequency band to transmit uplink data. When the uplink coverage of the NR carrier is relatively good, the user equipment can use the NR carrier to send and receive data. When it exceeds the coverage range of the NR carrier, the user equipment can use the SUL carrier to send data.
[0003] At present, the common 5G commercial deployment frequency bands are mainly TDD-NR bands such as 3.5GHz / 2.6GHz / 4.9GHz. The main features of these frequency bands are large bandwidth and high capacity, but due to relatively high penetration loss and low proportion of uplink time slots, there are deficiencies in uplink coverage and capacity. For this reason, 5G uses higher spectrum to obtain more bandwidth resources. However, the propagation characteristics of wireless signals are that the higher the frequency, the greater the spatial loss in space propagation, which will affect its coverage capability and there will be insufficient uplink coverage. Therefore, it cannot be simply assumed that the use of low-frequency bands can fully achieve uplink coverage enhancement. Therefore, how to design an efficient uplink coverage enhancement solution for cell edge users has become a problem that needs to be solved urgently. Summary of the invention
[0004] To this end, the present invention provides a method and device for enhancing uplink coverage for cell edge users, so as to solve the problems of high limitations and insufficient uplink coverage in the prior art abnormal data frame processing scheme for network set-top boxes.
[0005] In a first aspect, the present invention provides an uplink coverage enhancement method for a cell edge user, comprising:
[0006] Detecting an uplink channel sounding reference signal of a horizontal broadcast beam accessing a user equipment sent in a primary service cell, and determining an access level value of the uplink channel sounding reference signal, and determining whether there is a cell edge user in the horizontal broadcast beam based on the access level value;
[0007] Determine the target horizontal broadcast beam where the cell edge user exists, and set the corresponding beam weight, antenna azimuth parameter and downtilt parameter to maximize the coverage of the cell edge user by the antenna main lobe of the supplementary uplink cell configured in the main service cell.
[0008] In one embodiment, the method for enhancing uplink coverage for cell edge users further includes: before detecting the uplink channel detection reference signal of the horizontal broadcast beam accessing the user equipment, pre-configuring at least one horizontal broadcast beam in the main service cell based on the new air interface; wherein the horizontal broadcast beam includes a primary synchronization signal, a secondary synchronization signal and a physical broadcast channel.
[0009] In one embodiment, the pre-configuring at least one horizontal broadcast beam in a primary serving cell based on a new air interface specifically includes:
[0010] Determine frequency band information of the new air interface in time division duplex mode; wherein the new air interface is a link between a user equipment and a 5G base station;
[0011] Based on the frequency band information, at least one horizontal broadcast beam is configured in a primary service cell based on the new air interface.
[0012] In one embodiment, determining whether there is a cell edge user in the horizontal broadcast beam based on the access level value specifically includes:
[0013] Comparing the access level value with a preset first threshold value, and when the access level value is lower than the first threshold value, determining a corresponding count value;
[0014] If the count value exceeds the preset second threshold value, it is determined that the cell edge user exists in the horizontal broadcast beam; if the count value does not exceed the preset second threshold value, it is determined that the cell edge user does not exist in the horizontal broadcast beam;
[0015] The access level value refers to the receiving power level value of the horizontal broadcast beam accessing the uplink channel detection reference signal.
[0016] In one embodiment, determining a target horizontal broadcast beam where the cell edge user exists, and setting corresponding beam weights, antenna azimuth parameters, and downtilt parameters so that the antenna main lobe of the supplementary uplink cell configured in the primary serving cell maximizes coverage of the cell edge user, specifically includes:
[0017] Acquire parameter information of a target horizontal broadcast beam where the cell edge user exists, and determine the location of the target horizontal broadcast beam according to the parameter information; wherein the parameter information includes the beam weight, the azimuth parameter and the downtilt parameter of the antenna;
[0018] Collecting electrical performance indicators of corresponding active array modules based on the antenna;
[0019] Based on the location of the target horizontal broadcast beam and the electrical performance index, the target horizontal broadcast beam is adjusted to set the corresponding beam weight, antenna azimuth parameter and downtilt parameter so that the antenna main lobe of the supplementary uplink cell configured in the main service cell can maximize the coverage of the cell edge users.
[0020] In one embodiment, the electrical performance indicators include horizontal half-power beam width, vertical half-power beam width, and downtilt angle adjustable range.
[0021] In one embodiment, the method for enhancing uplink coverage for cell edge users further includes: sending at least one of the horizontal broadcast beams;
[0022] The sending of at least one horizontal broadcast beam specifically comprises:
[0023] When transmitting one of the horizontal broadcast beams, transmitting the horizontal broadcast beam by controlling the time domain position of the horizontal broadcast beam;
[0024] When at least two of the horizontal broadcast beams are sent, a horizontal broadcast beam in one direction is sent in the main service cell at each moment to complete coverage of the entire main service cell; wherein the directions of the horizontal broadcast beams sent at different moments are different.
[0025] In a second aspect, the present invention further provides an uplink coverage enhancement device for cell edge users, comprising:
[0026] An edge user position determination unit, configured to detect an uplink channel sounding reference signal of a horizontal broadcast beam accessing a user equipment sent in a primary service cell, and determine an access level value of the uplink channel sounding reference signal, and determine whether there is a cell edge user in the horizontal broadcast beam based on the access level value;
[0027] The parameter adjustment unit is used to determine the target horizontal broadcast beam where the cell edge users exist, and set the corresponding beam weight, antenna azimuth parameter and downtilt parameter to maximize the coverage of the cell edge users by the antenna main lobe of the supplementary uplink cell configured in the main service cell.
[0028] In one embodiment, the uplink coverage enhancement device for cell edge users also includes: a beam configuration unit, which is used to pre-configure at least one horizontal broadcast beam in a main service cell based on a new air interface before detecting the uplink channel detection reference signal of the horizontal broadcast beam accessing the user equipment; wherein the horizontal broadcast beam includes a primary synchronization signal, a secondary synchronization signal and a physical broadcast channel.
[0029] In one embodiment, the pre-configuring at least one horizontal broadcast beam in a primary serving cell based on a new air interface specifically includes:
[0030] Determine frequency band information of the new air interface in time division duplex mode; wherein the new air interface is a link between a user equipment and a 5G base station;
[0031] Based on the frequency band information, at least one horizontal broadcast beam is configured in a primary service cell based on the new air interface.
[0032] In one embodiment, the edge user location determination unit is specifically configured to:
[0033] Comparing the access level value with a preset first threshold value, and when the access level value is lower than the first threshold value, determining a corresponding count value;
[0034] If the count value exceeds the preset second threshold value, it is determined that the cell edge user exists in the horizontal broadcast beam; if the count value does not exceed the preset second threshold value, it is determined that the cell edge user does not exist in the horizontal broadcast beam;
[0035] The access level value refers to the receiving power level value of the horizontal broadcast beam accessing the uplink channel detection reference signal.
[0036] In one embodiment, the parameter adjustment unit is specifically used to:
[0037] Acquire parameter information of a target horizontal broadcast beam where the cell edge user exists, and determine the location of the target horizontal broadcast beam according to the parameter information; wherein the parameter information includes the beam weight, the azimuth parameter and the downtilt parameter of the antenna;
[0038] Collecting electrical performance indicators of corresponding active array modules based on the antenna;
[0039] Based on the location of the target horizontal broadcast beam and the electrical performance index, the target horizontal broadcast beam is adjusted to set the corresponding beam weight, antenna azimuth parameter and downtilt parameter so that the antenna main lobe of the supplementary uplink cell configured in the main service cell can maximize the coverage of the cell edge users.
[0040] In one embodiment, the electrical performance indicators include horizontal half-power beam width, vertical half-power beam width, and downtilt angle adjustable range.
[0041] In one embodiment, the device for enhancing uplink coverage for cell edge users further includes:
[0042] a horizontal broadcast beam sending unit, configured to send at least one of the horizontal broadcast beams;
[0043] The sending of at least one horizontal broadcast beam specifically comprises:
[0044] When transmitting one of the horizontal broadcast beams, transmitting the horizontal broadcast beam by controlling the time domain position of the horizontal broadcast beam;
[0045] When at least two of the horizontal broadcast beams are sent, a horizontal broadcast beam in one direction is sent in the main service cell at each moment to complete coverage of the entire main service cell; wherein the directions of the horizontal broadcast beams sent at different moments are different.
[0046] In a third aspect, the present invention further provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and running on the processor, wherein when the processor executes the program, the steps of the uplink coverage enhancement method for cell edge users as described in any one of the above items are implemented.
[0047] In a fourth aspect, the present invention further provides a processor-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the uplink coverage enhancement method for cell edge users as described in any one of the above items are implemented.
[0048] The uplink coverage enhancement method for cell edge users provided in an embodiment of the present invention can accurately determine the position of cell edge users, so as to adjust the antenna main lobe of the supplementary uplink cell to point to the cell edge users, so that the antenna main lobe of the supplementary uplink cell covers as many cell edge users as possible, and ultimately achieve the goal of enhancing uplink coverage. BRIEF DESCRIPTION OF THE DRAWINGS
[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0050] Figure 1A schematic diagram of a flow chart of a method for enhancing uplink coverage for cell edge users provided in an embodiment of the present invention;
[0051] Figure 2 A schematic diagram of horizontal broadcast beam transmission in an uplink coverage enhancement method for cell edge users provided in an embodiment of the present invention;
[0052] Figure 3 A schematic diagram of the structure of an uplink coverage enhancement device for cell edge users provided by an embodiment of the present invention;
[0053] Figure 4 A schematic diagram of the physical structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0054] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0055] The method for enhancing uplink coverage for cell edge users disclosed in the present invention is an uplink supplementary SUL mode for 5G NR (5G NewRadio) time division duplex (TDD), that is, a supplementary uplink mode. Based on the method for enhancing uplink coverage for cell edge users described in the present invention, an embodiment thereof is described in detail below. Figure 1 As shown, it is a flow chart of the uplink coverage enhancement method for cell edge users provided by an embodiment of the present invention, and the specific implementation process includes the following steps:
[0056] Step 101: Detect the uplink channel detection reference signal of the horizontal broadcast beam access user equipment sent in the main service cell, and determine the access level value of the uplink channel detection reference signal, and determine whether there is a cell edge user in the horizontal broadcast beam based on the access level value.
[0057] In an embodiment of the present invention, before executing this step, that is, before detecting the uplink channel detection reference signal of the horizontal broadcast beam accessing the user equipment, it is necessary to pre-configure at least one horizontal broadcast beam in the main service cell based on the new air interface. The horizontal broadcast beam includes a primary synchronization signal, a secondary synchronization signal and a physical broadcast channel. Among them, the pre-configuration of at least one horizontal broadcast beam in the main service cell based on the new air interface, the specific implementation process includes: determining the frequency band information of the new air interface in the time division duplex mode; based on the frequency band information, configuring at least one horizontal broadcast beam in the main service cell based on the new air interface.
[0058] Specifically, the New Radio (NR) is the link between the User Equipment (UE) and the 5G base station. The horizontal broadcast beam is an SSB (Synchronization Signal and PBCH Block) beam, which consists of a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a PBCH block (physical broadcast channel). The uplink channel sounding reference signal is an SRS (Sounding Reference Signal) signal.
[0059] Furthermore, in a specific implementation process, based on pre-configuring at least one horizontal broadcast beam in a primary service cell based on a new air interface, when sending one of the horizontal broadcast beams, the horizontal broadcast beam is sent by controlling the time domain position of the horizontal broadcast beam. When sending at least two of the horizontal broadcast beams, a horizontal broadcast beam in one direction is sent in the primary service cell at each moment to complete coverage of the entire primary service cell. The directions of the horizontal broadcast beams sent at different moments are different, as shown in FIG. Figure 2 As shown, horizontal broadcast beams in different directions are sent in sequence at each moment from top to bottom to complete the coverage of the entire primary service cell.
[0060] In the specific implementation process, first configure as many horizontal broadcast beams as possible in the main service cell (i.e., NR TDD cell) according to the frequency band information. In the NR TDD cell, the physical broadcast channel PBCH and the synchronization signal SS share an SSB (Synchronization Signal and PBCH Block) beam. The SSB beam is a cell-level beam. The gNodeB periodically sends broadcast synchronization messages and system messages in the SSB beam. When the NR TDD cell uses one SSB beam, the SINR of the SSB beam of the NR TDD cell can be improved by controlling the time domain position of the SSB beam. When the time domain positions of the SSB beams in different cells are different, the NR TDD cell uses multiple SSB beams. Usually, a beam in one direction is sent at each moment, and SSB beams in different directions are sent at different moments to complete coverage of the entire cell. Specifically, Figure 2 As shown. Accordingly, the user equipment will receive the signal of each SSB beam and complete synchronization and system message demodulation on the SSB beam with the best signal quality. Among them, as many horizontal broadcast beams as possible are configured in the main service cell according to the frequency band information. Specifically, according to the 3GPP TS 38.213 protocol, the maximum number of SSB beams of the NR TDD cell is: if the NR TDD frequency band is 1.88GHz-7.125GHz, the maximum number of SSB beams can be 8; if the NR TDD frequency band is lower than 1.88GHZ, the maximum number of SSB beams can be 4.
[0061] In this step, the determination of whether there is a cell edge user in the horizontal broadcast beam based on the access level value specifically includes: comparing the access level value with a preset first threshold value, and when the access level value is lower than the first threshold value, determining a corresponding count value; if the count value exceeds the preset second threshold value, determining that there is the cell edge user in the horizontal broadcast beam; if the count value does not exceed the preset second threshold value, determining that there is no cell edge user in the horizontal broadcast beam; wherein the access level value refers to the received power level value of the uplink channel detection reference signal of the horizontal broadcast beam, that is, the RSRP (Reference Signal Received Power) level value.
[0062] In an embodiment of the present invention, the SRS message and access level value of the user are detected in each SSB beam to determine the location of the user at the edge of the cell. Specifically, the user equipment sends the SRS within the activated BWP (Bandwidth Part) bandwidth, and the gNodeB receives and processes the SRS of the user equipment to obtain the corresponding SINR (Signal to Interference plus NoiseRatio), RSRP (Reference Signal Received Power), PMI (Precoding Matrix Indication), etc., thereby detecting the SRS message and access level value of the user based on each SSB beam to determine the location of the user at the edge of the cell. Among them, detecting the SRS message and access level value of the user based on each SSB beam specifically includes: the RSRP level of the SSB beam accessing the SRS is lower than a preset threshold T1, that is, counting is performed and set to:
[0063] Count SRS低电平 ;
[0064] If T1 = -105dBm, the RSRP level of the SSB beam accessing the SRS is lower than T1, then the count is:
[0065] Count SRS低电平 =1;
[0066] Determine the cell edge users of the NR TDD cell;
[0067] If the RSRP level value of the SSB beam access SRS signal is lower than the T1 threshold and the count value exceeds the T2 threshold, assuming T2 = 100, then:
[0068] Count SRS低电平 >100
[0069] It is determined that there are cell edge users in the SSB beam of the NR TDD cell.
[0070] Step 102: Determine the target horizontal broadcast beam where the cell edge users exist, and set corresponding beam weights, antenna azimuth parameters and downtilt parameters to maximize the coverage of the cell edge users by the antenna main lobe of the supplementary uplink cell configured in the main service cell.
[0071] In this step, the target horizontal broadcast beam where the cell edge user exists is determined, and the corresponding beam weight, antenna azimuth parameter and downtilt parameter are set so that the antenna main lobe of the supplementary uplink cell configured in the main service cell can maximize the coverage of the cell edge user. The specific implementation process includes: obtaining parameter information of the target horizontal broadcast beam where the cell edge user exists, and judging the location of the target horizontal broadcast beam according to the parameter information; wherein the parameter information includes the beam weight, the azimuth parameter and downtilt parameter of the antenna; collecting the electrical performance index of the corresponding active array module based on the antenna; and adjusting the target horizontal broadcast beam to set the corresponding beam weight, antenna azimuth parameter and downtilt parameter based on the location of the target horizontal broadcast beam and the electrical performance index, so that the antenna main lobe of the supplementary uplink cell configured in the main service cell can maximize the coverage of the cell edge user. wherein the electrical performance index includes horizontal half-power beam width, vertical half-power beam width, and downtilt adjustable range.
[0072] It should be noted that the present invention is aimed at the uplink supplementary SUL mode of 5G NR TDD. As many horizontal broadcast beams (SSB beams) as possible are configured in the NR TDD main service cell, and the SRS message and access level value of each SSB beam accessing the user equipment are detected. The position of the cell edge user is determined according to the access level value, and the targeted beam weight, antenna azimuth and downtilt angle are set for the SUL cell, so that the antenna main lobe of the SUL cell includes as many cell edge users as possible, and finally achieves the goal of enhancing uplink coverage. The specific method is described in detail below:
[0073] First, configure the SUL cell for the 5G NR TDD cell and associate it with the NR TDD cell. Specifically, configure the SUL cell for the 5G NR TDD cell. When the user equipment accesses the NR TDD cell configured with the SUL cell, in order to ensure that the user equipment correctly accesses the SUL carrier, the gNodeB needs to send the SUL carrier-related information to the user equipment. Among them, the parameters that need to be configured for the SUL cell include the following: Duplex mode: For the SUL cell, it needs to be set to cell_SUL; Band: The frequency band to which the SUL cell belongs, the frequency band supported by the SUL cell refers to Table 2; Uplink frequency: The SUL cell only needs to configure the uplink frequency; Uplink bandwidth: According to the SUL frequency band to which it belongs, and the actually available uplink bandwidth, combined with the uplink frequency, configure the SUL cell uplink bandwidth; Subcarrier spacing: The SUL cell subcarrier spacing is configured as: 15KHz; Root sequence logical index: used to generate the cell preamble sequence. After completing the SUL cell configuration, the NR TDD cell is associated with the SUL cell to establish a logical NR TDD cell supporting the SUL mode; when the idle state user equipment triggers random access, the downlink RSRP voltage value of the NR TDD carrier SSB beam measured by the user equipment is greater than the preset value, and the user equipment determines to initiate random access on the NR TDD carrier; when the connected state user equipment randomly accesses, the gNodeB indicates the NR TDD carrier to which the user equipment randomly accesses in the RRCReconfiguration message, and executes the following process:
[0074] The source gNodeB sends the A3 event measurement control within the system to the user equipment, instructing the user equipment to measure the NR neighbor cell signal; after receiving the measurement report reported by the user equipment, the source gNodeB forwards the target cell RSRP to the target gNodeB; the target gNodeB initiates random access when it determines that the RSRP is greater than rsrp-ThresholdSSB-SUL; the target gNodeB sends the random access information of the target cell NRTDD carrier to the source gNodeB, and the source gNodeB sends it to the user equipment through the RRCReconfiguration message; the user equipment initiates random access according to the target cell carrier information in the RRCReconfiguration message.
[0075] Secondly, the location of the cell edge user is determined based on the SRS message and access level value of each SSB beam access user.
[0076] Thirdly, targeted beam weights, antenna azimuth and downtilt angles are set for the SUL cell so that the antenna main lobe of the SUL cell includes as many cell edge users as possible, ultimately achieving the goal of enhancing uplink coverage.
[0077] Specifically, the SSB beam of the NR TDD cell where there are cell edge users is obtained, and the location of the SSB beam is determined according to the beam weight, azimuth and downtilt information of the NR TDD cell; the antenna of the NR TDD cell needs to collect the electrical indicators of the AAU (Active Array Units), including the horizontal half-power beam width, the vertical half-power beam width, and the adjustable range of the downtilt angle; the horizontal half-power beam width, the vertical half-power beam width, and the adjustable range of the antenna downtilt angle of the AAU antenna are not specifically limited here. Based on the SSB information of the cell edge users of the NR TDD cell obtained above, combined with the electrical performance indicators of the NR TDD cell antenna AAU, the antenna main lobe of the SUL cell includes the SSB where as many NR TDD cell edge users are located as possible, that is, it includes as many cell edge users as possible.
[0078] Finally, through long-term accumulated data statistics, the SUL cell beam weights for specific periodic time periods are set; or according to the actual detection results, the SUL cell beam weights are set for scenarios that reach the preset threshold. Specifically, if the SUL cell supports remote antenna adjustment, the SUL cell beam weights for specific periodic time periods can be set through data statistics; or according to the actual detection results, the SUL cell beam weights are set for scenarios that reach the preset threshold; if the SUL cell does not support remote antenna adjustment, it is necessary to adjust the azimuth of the SUL antenna so that the main lobe of the SUL cell antenna includes as many SSB beams where NR TDD cell edge users are located as possible, that is, includes as many cell edge users as possible.
[0079] The uplink coverage enhancement method for cell edge users provided in an embodiment of the present invention can accurately determine the position of cell edge users, so as to adjust the antenna main lobe of the supplementary uplink cell to point to the cell edge users, so that the antenna main lobe of the supplementary uplink cell covers as many cell edge users as possible, and ultimately achieve the goal of enhancing uplink coverage.
[0080] Corresponding to the above-mentioned method for enhancing uplink coverage for cell edge users, the present invention also provides an apparatus for enhancing uplink coverage for cell edge users. Since the embodiment of the apparatus is similar to the above-mentioned method embodiment, the description is relatively simple. For the relevant parts, please refer to the description of the above-mentioned method embodiment. The embodiment of the apparatus for enhancing uplink coverage for cell edge users described below is only illustrative.
[0081] Please refer to Figure 3 As shown, it is a structural schematic diagram of an uplink coverage enhancement device for cell edge users provided by an embodiment of the present invention.
[0082] The uplink coverage enhancement device for cell edge users of the present invention comprises the following parts:
[0083] The edge user position determination unit 301 is used to detect the uplink channel sounding reference signal of the horizontal broadcast beam access user equipment sent in the primary service cell, and determine the access level value of the uplink channel sounding reference signal, and determine whether there is a cell edge user in the horizontal broadcast beam based on the access level value;
[0084] The parameter adjustment unit 302 is used to determine the target horizontal broadcast beam where the cell edge users exist, and set the corresponding beam weight, antenna azimuth parameters and downtilt parameters to maximize the coverage of the cell edge users by the antenna main lobe of the supplementary uplink cell configured in the main service cell.
[0085] The uplink coverage enhancement device for cell edge users provided in the embodiment of the present invention can accurately determine the position of the cell edge users, so as to adjust the antenna main lobe of the supplementary uplink cell to point to the cell edge users, so that the antenna main lobe of the supplementary uplink cell covers as many cell edge users as possible, and finally achieve the goal of enhancing uplink coverage.
[0086] Corresponding to the above-mentioned method for enhancing uplink coverage for cell edge users, the present invention further provides an electronic device. Since the embodiment of the electronic device is similar to the above-mentioned method embodiment, the description is relatively simple. For the relevant parts, please refer to the description of the above-mentioned method embodiment. The electronic device described below is only exemplary. Figure 4 As shown, it is a schematic diagram of the physical structure of an electronic device disclosed in an embodiment of the present invention. The electronic device may include: a processor 401, a memory 402 and a communication bus 403, wherein the processor 401 and the memory 402 complete mutual communication through the communication bus 403, and communicate with the outside through the communication interface 404. The processor 401 can call the logic instructions in the memory 402 to execute the uplink coverage enhancement method for cell edge users. The method includes: detecting the uplink channel detection reference signal of the horizontal broadcast beam access user equipment sent in the main service cell, and determining the access level value of the uplink channel detection reference signal, and determining whether there is a cell edge user in the horizontal broadcast beam based on the access level value; determining the target horizontal broadcast beam where the cell edge user exists, and setting the corresponding beam weight, antenna azimuth parameter and downtilt parameter, so that the antenna main lobe of the supplementary uplink cell configured in the main service cell maximizes the coverage of the cell edge user.
[0087] In addition, the logic instructions in the above-mentioned memory 402 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: a storage chip, a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a disk or an optical disk, and other media that can store program codes.
[0088] On the other hand, an embodiment of the present invention further provides a computer program product, the computer program product comprising a computer program stored on a processor-readable storage medium, the computer program comprising program instructions, and when the program instructions are executed by a computer, the computer can execute the uplink coverage enhancement method for cell edge users provided by the above-mentioned method embodiments. The method comprises: detecting an uplink channel detection reference signal of a horizontal broadcast beam access user equipment sent in a main service cell, and determining an access level value of the uplink channel detection reference signal, and determining whether there is a cell edge user in the horizontal broadcast beam based on the access level value; determining a target horizontal broadcast beam where the cell edge user exists, and setting corresponding beam weights, antenna azimuth parameters, and downtilt parameters, so that the antenna main lobe of the supplementary uplink cell configured in the main service cell maximizes coverage of the cell edge users.
[0089] On the other hand, an embodiment of the present invention further provides a processor-readable storage medium, on which a computer program is stored, and when the computer program is executed by the processor, it is implemented to execute the uplink coverage enhancement method for cell edge users provided in the above embodiments. The method includes: detecting the uplink channel detection reference signal of the horizontal broadcast beam access user equipment sent in the main service cell, and determining the access level value of the uplink channel detection reference signal, and determining whether there is a cell edge user in the horizontal broadcast beam based on the access level value; determining the target horizontal broadcast beam where the cell edge user exists, and setting the corresponding beam weight, antenna azimuth parameters and downtilt parameters, so that the antenna main lobe of the supplementary uplink cell configured in the main service cell maximizes the coverage of the cell edge users.
[0090] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.
[0091] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.
[0092] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.
[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A method for enhancing uplink coverage for cell edge users, characterized in that: include: Detecting an uplink channel sounding reference signal of a horizontal broadcast beam accessing a user equipment sent in a primary service cell, and determining an access level value of the uplink channel sounding reference signal, and determining whether there is a cell edge user in the horizontal broadcast beam based on the access level value; The determining whether there is a cell edge user in the horizontal broadcast beam based on the access level value specifically includes: comparing the access level value with a preset first threshold value, and when the access level value is lower than the first threshold value, determining a corresponding count value; if the count value exceeds a preset second threshold value, determining that the cell edge user exists in the horizontal broadcast beam; if the count value does not exceed the preset second threshold value, determining that the cell edge user does not exist in the horizontal broadcast beam; wherein the access level value refers to the received power level value of the horizontal broadcast beam accessing the uplink channel detection reference signal; The method for enhancing uplink coverage for cell edge users further includes: when sending one horizontal broadcast beam, sending the horizontal broadcast beam by controlling the time domain position of the horizontal broadcast beam; when sending at least two horizontal broadcast beams, sending a horizontal broadcast beam in one direction in the primary service cell at each moment to complete coverage of the entire primary service cell; wherein the directions of the horizontal broadcast beams sent at different moments are different; Determine a target horizontal broadcast beam where the cell edge user exists, and set corresponding beam weights, antenna azimuth parameters, and downtilt parameters, so that the antenna main lobe of the supplementary uplink cell configured in the primary service cell maximizes coverage of the cell edge user; The method of determining the target horizontal broadcast beam where the cell edge users exist, and setting corresponding beam weights, azimuth parameters and downtilt parameters of the antenna so that the antenna main lobe of the supplementary uplink cell configured in the main service cell can maximize coverage of the cell edge users, specifically includes: obtaining parameter information of the target horizontal broadcast beam where the cell edge users exist, and judging the location of the target horizontal broadcast beam according to the parameter information; wherein the parameter information includes the beam weights, azimuth parameters and downtilt parameters of the antenna; collecting electrical performance indicators of the corresponding active array module based on the antenna; the electrical performance indicators include horizontal half-power beam width, vertical half-power beam width, and adjustable downtilt range; based on the location of the target horizontal broadcast beam and the electrical performance indicators, adjusting the target horizontal broadcast beam to set corresponding beam weights, azimuth parameters and downtilt parameters of the antenna so that the antenna main lobe of the supplementary uplink cell configured in the main service cell can maximize coverage of the cell edge users.
2. The method for enhancing uplink coverage for cell edge users according to claim 1, characterized in that: Also includes: Before detecting the uplink channel detection reference signal of the horizontal broadcast beam accessing the user equipment, at least one horizontal broadcast beam is pre-configured in the main service cell based on the new air interface; wherein the horizontal broadcast beam includes a primary synchronization signal, a secondary synchronization signal and a physical broadcast channel.
3. The method for enhancing uplink coverage for cell edge users according to claim 2, characterized in that: The pre-configuring at least one horizontal broadcast beam in the primary serving cell based on the new air interface specifically includes: Determine frequency band information of the new air interface in time division duplex mode; wherein the new air interface is a link between a user equipment and a 5G base station; Based on the frequency band information, at least one horizontal broadcast beam is configured in a primary service cell based on the new air interface.
4. An uplink coverage enhancement device for cell edge users, characterized in that: include: An edge user position determination unit, configured to detect an uplink channel sounding reference signal of a horizontal broadcast beam accessing a user equipment sent in a primary service cell, and determine an access level value of the uplink channel sounding reference signal, and determine whether there is a cell edge user in the horizontal broadcast beam based on the access level value; The determining whether there is a cell edge user in the horizontal broadcast beam based on the access level value specifically includes: comparing the access level value with a preset first threshold value, and when the access level value is lower than the first threshold value, determining a corresponding count value; if the count value exceeds a preset second threshold value, determining that the cell edge user exists in the horizontal broadcast beam; if the count value does not exceed the preset second threshold value, determining that the cell edge user does not exist in the horizontal broadcast beam; wherein the access level value refers to the received power level value of the horizontal broadcast beam accessing the uplink channel detection reference signal; The uplink coverage enhancement device for cell edge users further includes: a horizontal broadcast beam sending unit; the horizontal broadcast beam sending unit is used to send the horizontal broadcast beam by controlling the time domain position of the horizontal broadcast beam when sending one horizontal broadcast beam; when sending at least two horizontal broadcast beams, a horizontal broadcast beam in one direction is sent in the primary service cell at each moment to complete the coverage of the entire primary service cell; wherein the directions of the horizontal broadcast beams sent at different moments are different; a parameter adjustment unit, configured to determine a target horizontal broadcast beam where the cell edge user exists, and set corresponding beam weights, antenna azimuth parameters and downtilt parameters, so that the antenna main lobe of the supplementary uplink cell configured in the primary service cell maximizes coverage of the cell edge user; The parameter adjustment unit is specifically used to: obtain parameter information of the target horizontal broadcast beam where the cell edge users exist, and determine the location of the target horizontal broadcast beam based on the parameter information; wherein the parameter information includes the beam weight, the azimuth parameter and the downtilt parameter of the antenna; collect electrical performance indicators of the corresponding active array module based on the antenna; the electrical performance indicators include horizontal half-power lobe width, vertical half-power lobe width, and adjustable downtilt range; based on the location of the target horizontal broadcast beam and the electrical performance indicators, adjust the target horizontal broadcast beam to set the corresponding beam weight, the azimuth parameter and the downtilt parameter of the antenna, so that the antenna main lobe of the supplementary uplink cell configured in the main service cell maximizes coverage of the cell edge users.
5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the program, the steps of the uplink coverage enhancement method for cell edge users as described in any one of claims 1 to 3 are implemented.
6. A processor-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for enhancing uplink coverage for cell edge users as claimed in any one of claims 1 to 3 are implemented.
Citation Information
Patent Citations
Method, device and base station for dividing limbic users in long term evolution (LTE) system
CN103139825A
Beam coverage management method, device and equipment
CN110536312A