CN106209180B - Downlink antenna selection method and device of distributed base station - Google Patents
Downlink antenna selection method and device of distributed base station Download PDFInfo
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Abstract
The invention discloses a downlink antenna selection method of a distributed base station, which comprises the following steps: determining an antenna currently receiving an uplink signal; calculating the determined quality parameters of the uplink signals received by the antennas; and selecting a downlink antenna from the determined antennas according to each quality parameter. The invention also discloses a downlink antenna selection device of the distributed base station. The invention can select the downlink antenna according to the quality parameter of the uplink signal, realizes the self-adaptive selection of the downlink antenna, realizes the flexible selection of the downlink antenna and the downlink cooperative transmission, improves the spatial freedom degree of the downlink transmission, and further improves the information transmission quality and speed.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for selecting a downlink antenna of a distributed base station.
Background
With the development of LTE and 5G technologies, distributed base stations are increasingly used. A distributed base station is generally provided with a plurality of antennas, and when an uplink antenna receives a signal, a downlink antenna corresponding to the uplink antenna is determined according to a preset one-to-one correspondence relationship between the uplink antenna and the downlink antenna.
Disclosure of Invention
The invention mainly aims to provide a method and a device for selecting a downlink antenna of a distributed base station, and aims to solve the technical problems of poor information transmission quality and low speed caused by inadequate selection of the downlink antenna.
The downlink antenna selection method of the distributed base station provided by the invention comprises the following steps:
determining an antenna currently receiving an uplink signal;
calculating the determined quality parameters of the uplink signals received by the antennas;
and selecting a downlink antenna from the determined antennas according to each quality parameter.
Preferably, the step of selecting a downlink antenna from the determined antennas according to each quality parameter includes:
determining the antenna with the quality parameter meeting the preset condition as a candidate downlink antenna;
calculating the time advance of the uplink signal received by each candidate downlink antenna;
and selecting downlink antennas from the candidate downlink antennas according to the time advance.
Preferably, the preset condition is that the quality parameter is greater than a first preset threshold.
Preferably, the step of determining the antenna with the quality parameter meeting the preset condition as the candidate downlink antenna includes:
determining antennas corresponding to the preset quantity of quality parameters as candidate downlink antennas;
and the quality parameters corresponding to the candidate downlink antennas are all larger than or equal to the quality parameters corresponding to other antennas except the candidate antennas in the antennas.
Preferably, the step of selecting a downlink antenna from the candidate downlink antennas according to each of the timing advances includes:
determining the antenna with the maximum corresponding quality parameter as a reference antenna;
calculating the difference between the time advance of the reference antenna and each candidate downlink antenna respectively;
and taking the candidate downlink antenna with the difference value smaller than or equal to a second preset threshold value as a downlink antenna.
In addition, the downlink antenna selection apparatus of a distributed base station provided by the present invention includes:
the determining module is used for determining the antenna currently receiving the uplink signal;
the calculation module is used for calculating the determined quality parameters of the uplink signals received by the antennas;
and the selecting module is used for selecting the downlink antenna from the determined antennas according to the quality parameters.
Preferably, the selecting module includes:
a determining unit, configured to determine an antenna for which the quality parameter meets a preset condition as a candidate downlink antenna;
a calculating unit, configured to calculate a timing advance of the uplink signal received by each candidate downlink antenna;
and the selecting unit is used for selecting the downlink antenna from the candidate downlink antennas according to each time advance.
Preferably, the preset condition is that the quality parameter is greater than a first preset threshold.
Preferably, the determination unit includes:
a first determining subunit, configured to determine antennas corresponding to a preset number of quality parameters as candidate downlink antennas;
and the quality parameters corresponding to the candidate downlink antennas are all larger than or equal to the quality parameters corresponding to other antennas except the candidate antennas in the antennas.
Preferably, the selecting unit includes:
the second determining subunit is used for determining the antenna with the maximum corresponding quality parameter as a reference antenna;
a calculating subunit, configured to calculate difference values between the timing advances of the reference antenna and the candidate downlink antennas respectively;
and the selecting subunit is used for taking the candidate downlink antenna of which the difference value is smaller than or equal to a second preset threshold value as a downlink antenna.
According to the downlink antenna selection method of the distributed base station, the antenna which receives the uplink signal at present is determined, the quality parameter of the uplink signal received by each antenna is calculated, the downlink antenna is selected from the determined antennas according to each quality parameter, the downlink antenna is selected according to the quality parameter of the uplink signal, the downlink antenna is selected in a self-adaptive mode, flexible selection and downlink cooperative transmission of the downlink antenna are achieved, the spatial freedom degree of downlink transmission is improved, and the information transmission quality and the information transmission rate are improved.
Drawings
Fig. 1 is a flowchart illustrating a downlink antenna selection method of a distributed base station according to a preferred embodiment of the present invention;
fig. 2 is a schematic view of a detailed flow of a step of selecting a downlink antenna in the downlink antenna selection method of the distributed base station according to the present invention;
fig. 3 is a schematic diagram illustrating a detailed flow of a step of selecting a downlink antenna from candidate downlink antennas in the downlink antenna selection method of the distributed base station according to the present invention;
fig. 4 is a functional block diagram of a downlink antenna selection apparatus of a distributed base station according to a preferred embodiment of the present invention;
fig. 5 is a schematic diagram of a detailed functional module of a selection module in the downlink antenna selection apparatus of the distributed base station according to the present invention;
fig. 6 is a schematic diagram of a detailed functional module of a selecting unit of the downlink antenna selecting apparatus of the distributed base station according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a downlink antenna selection method of a distributed base station. Distributed base stations have two forms, the first form being: the system consists of a baseband processing center and a plurality of remote radio frequency modules; the second form is: the base station cooperative group is formed by a base station cooperative group, and one base station is responsible for central processing of a base band in the base station cooperative group. The downlink antenna selection method of the distributed base station provided by the present invention is implemented based on the distributed base station, for example, the downlink antenna selection method of the distributed base station provided by the present invention may be implemented by the baseband processing center, or implemented by the base station responsible for the central processing of the baseband.
Referring to fig. 1, fig. 1 is a schematic flow chart of a preferred embodiment of a downlink antenna selection method of a distributed base station in the present invention, where the downlink antenna selection method of the distributed base station includes:
step S10, determining the antenna currently receiving the uplink signal;
in this embodiment, a distributed base station including a baseband processing center and a plurality of remote rf modules is taken as an example for description. The remote radio frequency module can be a single-channel remote radio frequency module or a multi-channel remote radio frequency module, and each channel is provided with an antenna. Preferably, the channels corresponding to all the antennas in the distributed base station are in an open state. When a mobile terminal (e.g., a mobile phone) sends a signal to a distributed base station, the distributed base station receives an uplink signal from the mobile terminal through a corresponding antenna, and an antenna channel receiving the uplink signal is in an activated state. And determining the antenna for receiving the uplink signal by the baseband processing center.
For example, assuming that the distributed base station has 32 antennas in total, and when the mobile terminal transmits a signal to the distributed base station, all of the 32 antennas receive an uplink signal, the 32 antennas are determined as antennas that receive the uplink signal.
Step S20, calculating the determined quality parameters of the uplink signals received by each antenna;
in the present embodiment, the quality parameter may be a SINR (Signal to Interference plus noise ratio) parameter or an RSSI (received wide band power) parameter. Wherein, the RSSI is the received signal (possibly containing noise and interference) power within the bandwidth defined by the receiver pulse shaping filter, and the measured reference point is the antenna port of the base station, i.e. the RSSI is the average value of all signal powers within this received Symbol. SINR is the ratio of the strength of the received desired signal to the strength of the received interfering signal (noise and interference).
In this embodiment, the quality parameter is described as an SINR parameter.
For example, the SINR parameters of the uplink signals received by each antenna in the 32 determined antennas are shown in the following table:
TABLE 1
| Antenna numbering | SINR(dB) |
| 1 | 8 |
| 2 | 12 |
| 3 | 11 |
| 4 | 9 |
| 5 | 12 |
| 6 | 15 |
| 7 | 20 |
| 8 | 11 |
| 9 | 9 |
| 10 | 8 |
| 11 | 7 |
| 12 | 0 |
| 13 | -5 |
| 14 | -6 |
| 15 | -7 |
| 16 | -20 |
| 17 | -30 |
| 18 | -29 |
| 19 | -28 |
| 20 | -27 |
| 21 | -26 |
| 22 | -25 |
| 23 | -24 |
| 24 | -23 |
| 25 | -22 |
| 26 | -21 |
| 27 | -20 |
| 28 | -19 |
| 29 | -18 |
| 30 | -17 |
| 31 | -16 |
| 32 | -15 |
And step S30, selecting a downlink antenna from the determined antennas according to the quality parameters.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a detailed flow of the step of selecting a downlink antenna in the downlink antenna selection method of the distributed base station of the present invention, where the step S30 includes:
step S31, determining the antenna with the quality parameter meeting the preset condition as a candidate downlink antenna;
in this embodiment, the candidate downlink antenna may be determined in the following manner:
in a first manner, the preset condition is that the quality parameter is greater than a first preset threshold, that is, an antenna corresponding to the quality parameter greater than the first preset threshold is determined as a candidate downlink antenna.
For example, the preset threshold may be set to 10, and the antenna numbers corresponding to the quality parameters greater than 10 are respectively 2, 3, 5, 6, 7, and 8, so that the antennas 2, 3, 5, 6, 7, and 8 may be selected as the candidate downlink antennas.
In the second mode, step S31 includes:
determining antennas corresponding to the preset quantity of quality parameters as candidate downlink antennas;
and the quality parameters corresponding to the candidate downlink antennas are all larger than or equal to the quality parameters corresponding to other antennas except the candidate antennas in the antennas.
The specific manner of selecting the preset number of quality parameters may be set according to actual needs, for example, the calculated quality parameters may be arranged in an ascending or descending manner, and then the preset number of quality parameters may be selected from the sorted quality parameter list, or the preset number of quality parameters may be selected by using a bubbling method. This embodiment will be described by taking an example of first arranging the calculated quality parameters in descending order.
Sorting the calculated quality parameters according to a descending order;
for example, the sorted quality parameters are listed as follows:
TABLE 2
Selecting a preset number of quality parameters from high to low in the sorted quality parameters;
and determining the antenna corresponding to the selected quality parameter as a candidate downlink antenna.
For example, the preset number may be 6, and therefore, the antennas corresponding to the first 6 quality parameters in the sorted quality parameter list are selected as candidate downlink antennas, that is, the antennas 2, 3, 5, 6, 7, and 8 are selected as candidate downlink antennas.
Step S32, calculating a time advance of the uplink signal received by each candidate downlink antenna;
in an LTE system, uplink signals of different UEs (User equipments) need to be time aligned when arriving at an eNodeB, so as to ensure orthogonality of the uplink signals between the UEs, which is helpful for eliminating interference in a cell, and the main purpose of the time advance is to eliminate different transmission delays between the UEs.
The time advance of the uplink signal corresponding to the candidate downlink antenna is shown in the following table:
TABLE 3
| Antenna numbering | Amount of time advance |
| 2 | 96Ts |
| 3 | 16Ts |
| 5 | 32Ts |
| 6 | 48Ts |
| 7 | 48Ts |
| 8 | 32Ts |
And step S33, selecting a downlink antenna from the candidate downlink antennas according to each time advance.
In this embodiment, the manner of selecting the downlink antenna from the candidate downlink antennas according to the timing advance may be selected according to actual needs, for example, a timing advance range may be preset, and the candidate downlink antenna corresponding to the timing advance within the timing advance range is determined as the downlink antenna. In addition, the following method can be adopted: referring to fig. 3, fig. 3 is a schematic diagram illustrating a detailed flow of the step of selecting a downlink antenna from candidate downlink antennas in the downlink antenna selection method of the distributed base station according to the present invention, where the step S33 includes:
step S331, determining the antenna with the maximum corresponding quality parameter as a reference antenna;
in this embodiment, the maximum quality parameter is 20 and its corresponding antenna number is 7 according to table 1, so antenna 7 is taken as the reference antenna.
Step S332, respectively calculating a difference between the timing advance of the reference antenna and each candidate downlink antenna;
preferably, the calculated difference is an absolute difference. In this embodiment, the absolute value of the difference between the timing advance of each candidate downlink antenna and the timing advance of the reference antenna is shown in the following table:
TABLE 4
Step S333, using the candidate downlink antenna with the difference value smaller than or equal to a second preset threshold value as a downlink antenna;
the second preset threshold value can be set according to actual needs. Preferably, the second preset threshold may be set to a CP (Cyclic Prefix) length value, that is, the second preset threshold may be set to 2192 Ts.
In this embodiment, since the absolute difference values corresponding to all the candidate downlink antennas are smaller than the second preset threshold, all the candidate downlink antennas can be used as downlink antennas, that is, the finally determined downlink antennas are 2, 3, 5, 6, 7, and 8.
According to the downlink antenna selection method of the distributed base station, the antenna which receives the uplink signal at present is determined, the quality parameter of the uplink signal received by each antenna is calculated, the downlink antenna is selected from the determined antennas according to each quality parameter, the downlink antenna is selected according to the quality parameter of the uplink signal, the downlink antenna is selected in a self-adaptive mode, flexible selection and downlink cooperative transmission of the downlink antenna are achieved, the spatial freedom degree of downlink transmission is improved, and the information transmission quality and the information transmission rate are improved.
The invention further provides a downlink antenna selection device of the distributed base station. Distributed base stations have two forms, the first form being: the system consists of a baseband processing center and a plurality of remote radio frequency modules; the second form is: the base station cooperative group is formed by a base station cooperative group, and one base station is responsible for central processing of a base band in the base station cooperative group. The downlink antenna selection apparatus of the distributed base station according to the present invention is implemented based on the distributed base station, and for example, the downlink antenna selection apparatus of the distributed base station according to the present invention may be the baseband processing center or the base station responsible for the central processing of the baseband.
Referring to fig. 4, fig. 4 is a functional block diagram of a downlink antenna selection apparatus of a distributed base station according to a preferred embodiment of the present invention. The downlink antenna selection device of the distributed base station comprises:
a determining module 10, configured to determine an antenna receiving an uplink signal;
in this embodiment, a distributed base station including a baseband processing center and a plurality of remote rf modules is taken as an example for description. The remote radio frequency module can be a single-channel remote radio frequency module or a multi-channel remote radio frequency module, and each channel is provided with an antenna. Preferably, the channels corresponding to all the antennas in the distributed base station are in an open state. When a mobile terminal (e.g., a mobile phone) sends a signal to a distributed base station, the distributed base station receives an uplink signal from the mobile terminal through a corresponding antenna, and an antenna channel receiving the uplink signal is in an activated state. The determination module 10 determines the antenna receiving the uplink signal.
For example, assuming that the distributed base station has 32 antennas in total, and when the mobile terminal transmits a signal to the distributed base station, all of the 32 antennas receive an uplink signal, the 32 antennas are determined as antennas that receive the uplink signal.
A calculating module 20, configured to calculate a determined quality parameter of the uplink signal received by each antenna;
in the present embodiment, the quality parameter may be a SINR (Signal to Interference plus noise ratio) parameter or an RSSI (received wide band power) parameter. Wherein, the RSSI is the received signal (possibly containing noise and interference) power within the bandwidth defined by the receiver pulse shaping filter, and the measured reference point is the antenna port of the base station, i.e. the RSSI is the average value of all signal powers within this received Symbol. SINR is the ratio of the strength of the received desired signal to the strength of the received interfering signal (noise and interference).
In this embodiment, the quality parameter is described as an SINR parameter.
For example, table 1 shows SINR parameters of uplink signals received by each antenna among the 32 determined antennas.
And the selecting module 30 is configured to select a downlink antenna from the determined antennas according to each quality parameter.
Referring to fig. 5, fig. 5 is a schematic diagram of a detailed functional module of a selection module in the downlink antenna selection apparatus of the distributed base station of the present invention, where the selection module 30 includes:
a determining unit 31, configured to determine an antenna for which the quality parameter meets a preset condition as a candidate downlink antenna;
in this embodiment, the candidate downlink antenna may be determined in the following manner:
in a first manner, the preset condition is that the quality parameter is greater than a first preset threshold, that is, an antenna corresponding to the quality parameter greater than the first preset threshold is determined as a candidate downlink antenna.
For example, the preset threshold may be set to 10, and the antenna numbers corresponding to the quality parameters greater than 10 are respectively 2, 3, 5, 6, 7, and 8, so that the antennas 2, 3, 5, 6, 7, and 8 may be selected as the candidate downlink antennas.
In the second mode, the determination unit 31 includes:
a first determining subunit, configured to determine antennas corresponding to a preset number of quality parameters as candidate downlink antennas;
and the quality parameters corresponding to the candidate downlink antennas are all larger than or equal to the quality parameters corresponding to other antennas except the candidate antennas in the antennas.
The specific manner of selecting the preset number of quality parameters may be set according to actual needs, for example, the calculated quality parameters may be arranged in an ascending or descending manner, and then the preset number of quality parameters may be selected from the sorted quality parameter list, or the preset number of quality parameters may be selected by using a bubbling method. This embodiment will be described by taking an example of first arranging the calculated quality parameters in descending order.
Sorting the calculated quality parameters according to a descending order;
for example, the sorted quality parameter list is shown in table 2 above.
Selecting a preset number of quality parameters from high to low in the sorted quality parameters;
and determining the antenna corresponding to the selected quality parameter as a candidate downlink antenna.
For example, the preset number may be 6, and therefore, the antennas corresponding to the first 6 quality parameters in the sorted quality parameter list are selected as candidate downlink antennas, that is, the antennas 2, 3, 5, 6, 7, and 8 are selected as candidate downlink antennas.
A calculating unit 32, configured to calculate a timing advance of the uplink signal received by each candidate downlink antenna;
in an LTE system, uplink signals of different UEs (User equipments) need to be time aligned when arriving at an eNodeB, so as to ensure orthogonality of the uplink signals between the UEs, which is helpful for eliminating interference in a cell, and the main purpose of the time advance is to eliminate different transmission delays between the UEs.
The timing advance of the uplink signal corresponding to the candidate downlink antenna is shown in table 3 above.
A selecting unit 33, configured to select a downlink antenna from the candidate downlink antennas according to each time advance.
In this embodiment, the manner of selecting the downlink antenna from the candidate downlink antennas according to the timing advance may be selected according to actual needs, for example, a timing advance range may be preset, and the candidate downlink antenna corresponding to the timing advance within the timing advance range is determined as the downlink antenna. In addition, the following method can be adopted: referring to fig. 6, fig. 6 is a schematic diagram of a detailed functional module of a selecting unit of a downlink antenna selecting apparatus of a distributed base station in the present invention, where the selecting unit 33 includes:
a second determining subunit 331, configured to determine, as the reference antenna, the antenna with the largest corresponding quality parameter;
in this embodiment, the maximum quality parameter is 20 and its corresponding antenna number is 7 according to table 1, so antenna 7 is taken as the reference antenna.
A calculating subunit 332, configured to calculate difference values between the timing advances of the reference antenna and the timing advances of the candidate downlink antennas, respectively;
preferably, the calculated difference is an absolute difference. In the present embodiment, the absolute value of the difference between the timing advance of each candidate downlink antenna and the timing advance of the reference antenna is shown in table 4 above.
A selecting subunit 333, configured to use the candidate downlink antenna for which the difference value is smaller than or equal to a second preset threshold as a downlink antenna;
the second preset threshold value can be set according to actual needs. Preferably, the second preset threshold may be set to a CP (Cyclic Prefix) length value, that is, the second preset threshold may be set to 2192 Ts.
In this embodiment, since the absolute difference values corresponding to all the candidate downlink antennas are smaller than the second preset threshold, all the candidate downlink antennas can be used as downlink antennas, that is, the finally determined downlink antennas are 2, 3, 5, 6, 7, and 8.
According to the downlink antenna selection device of the distributed base station, the antenna which receives the uplink signal currently is determined, the quality parameter of the uplink signal received by each antenna is calculated, the downlink antenna is selected from the determined antennas according to each quality parameter, the downlink antenna is selected according to the quality parameter of the uplink signal, the downlink antenna is selected in a self-adaptive mode, flexible selection and downlink cooperative transmission of the downlink antenna are achieved, the spatial freedom degree of downlink transmission is improved, and the information transmission quality and the information transmission rate are improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A downlink antenna selection method of a distributed base station is characterized in that the downlink antenna selection method of the distributed base station comprises the following steps:
determining an antenna currently receiving an uplink signal;
calculating the determined quality parameters of the uplink signals received by the antennas;
selecting the downlink antenna from the determined antennas according to the quality parameters, wherein:
the step of selecting a downlink antenna from the determined antennas according to each quality parameter includes:
determining the antenna with the quality parameter meeting the preset condition as a candidate downlink antenna;
calculating the time advance of the uplink signal received by each candidate downlink antenna;
and selecting downlink antennas from the candidate downlink antennas according to the time advance.
2. The method of claim 1, wherein the predetermined condition is that the quality parameter is greater than a first predetermined threshold.
3. The method for selecting downlink antennas of a distributed base station according to claim 2, wherein the step of determining the antennas whose quality parameters satisfy the preset condition as the candidate downlink antennas comprises:
determining antennas corresponding to the preset quantity of quality parameters as candidate downlink antennas;
and the quality parameters corresponding to the candidate downlink antennas are all larger than or equal to the quality parameters corresponding to other antennas except the candidate antennas in the antennas.
4. The method as claimed in claim 2 or 3, wherein the step of selecting the downlink antenna from the candidate downlink antennas according to each of the timing advances comprises:
determining the antenna with the maximum corresponding quality parameter as a reference antenna;
calculating the difference between the time advance of the reference antenna and each candidate downlink antenna respectively;
and taking the candidate downlink antenna with the difference value smaller than or equal to a second preset threshold value as a downlink antenna.
5. A downlink antenna selection apparatus of a distributed base station, the downlink antenna selection apparatus of the distributed base station comprising:
the determining module is used for determining the antenna currently receiving the uplink signal;
the calculation module is used for calculating the determined quality parameters of the uplink signals received by the antennas;
a selecting module, configured to select a downlink antenna from the determined antennas according to each quality parameter, where the selecting module further includes:
a determining unit, configured to determine an antenna for which the quality parameter meets a preset condition as a candidate downlink antenna;
a calculating unit, configured to calculate a timing advance of the uplink signal received by each candidate downlink antenna;
and the selecting unit is used for selecting the downlink antenna from the candidate downlink antennas according to each time advance.
6. The apparatus for selecting downlink antenna of a distributed base station according to claim 5, wherein the predetermined condition is that the quality parameter is greater than a first predetermined threshold.
7. The downlink antenna selection apparatus of the distributed base station according to claim 6, wherein the determining unit includes:
a first determining subunit, configured to determine antennas corresponding to a preset number of quality parameters as candidate downlink antennas;
and the quality parameters corresponding to the candidate downlink antennas are all larger than or equal to the quality parameters corresponding to other antennas except the candidate antennas in the antennas.
8. The apparatus for selecting downlink antenna of the distributed base station according to claim 6 or 7, wherein the selecting unit comprises:
the second determining subunit is used for determining the antenna with the maximum corresponding quality parameter as a reference antenna;
a calculating subunit, configured to calculate difference values between the timing advances of the reference antenna and the candidate downlink antennas respectively;
and the selecting subunit is used for taking the candidate downlink antenna of which the difference value is smaller than or equal to a second preset threshold value as a downlink antenna.
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| CN106685508B (en) * | 2017-02-10 | 2020-06-23 | 京信通信系统（中国）有限公司 | Data transmission method and device |
| US10284292B2 (en) * | 2017-05-30 | 2019-05-07 | Andrew Wireless Systems Gmbh | Systems and methods for communication link redundancy for distributed antenna systems |
| EP3935751A4 (en) | 2019-05-06 | 2022-12-21 | CommScope Technologies LLC | Transport cable redundancy in a distributed antenna system using digital transport |
| CN110278015B (en) * | 2019-05-16 | 2021-02-09 | 华为技术有限公司 | Antenna selection method, device and terminal |
| CN112910525B (en) * | 2019-12-03 | 2022-06-21 | 深圳市万普拉斯科技有限公司 | Antenna switching method and device of mobile terminal and mobile terminal |
| CN113260074B (en) * | 2021-07-15 | 2022-04-22 | 成都爱瑞无线科技有限公司 | Uplink data processing method, system, device, equipment and storage medium |
| CN114578144B (en) * | 2022-05-06 | 2022-07-19 | 成都瑞迪威科技有限公司 | Efficient alignment-free antenna channel distribution detection method |
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- 2015-08-17 WO PCT/CN2015/087244 patent/WO2016173152A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101291475A (en) * | 2007-04-18 | 2008-10-22 | 展讯通信（上海）有限公司 | Mobile station for time division duplex radio communication system and antenna selection method |
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| CN102469497A (en) * | 2010-11-11 | 2012-05-23 | 中兴通讯股份有限公司 | Method for selecting optimum cell portion (CP) of uplink and downlink and base station thereof |
| CN102655679A (en) * | 2011-03-02 | 2012-09-05 | 鼎桥通信技术有限公司 | Downlink sending channel selecting method, base station and indoor distribution system |
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| CN106209180A (en) | 2016-12-07 |
| WO2016173152A1 (en) | 2016-11-03 |
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