CN112822698B - Uplink data distribution method and device - Google Patents
Uplink data distribution method and device Download PDFInfo
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- CN112822698B CN112822698B CN201911121912.3A CN201911121912A CN112822698B CN 112822698 B CN112822698 B CN 112822698B CN 201911121912 A CN201911121912 A CN 201911121912A CN 112822698 B CN112822698 B CN 112822698B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0289—Congestion control
Abstract
The embodiment of the invention provides an uplink data distribution method and device. The method comprises the following steps: determining a signal to interference plus noise ratio (SINR) of a Sounding Reference Signal (SRS) reported by a terminal; determining a first base station which is a main path of the current separated Radio Bearer (RB) of the terminal, and judging whether the SINR meets a shunting parameter switching condition corresponding to the first base station; wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; and if the SINR meets the shunting parameter switching condition, setting the main path for separating the RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station. The embodiment of the invention solves the problem that the utilization rate of wireless resources is easily reduced by the shunting mode of the dual communication link in the prior art.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to an uplink data offloading method and apparatus.
Background
With the rapid development of mobile internet and internet of things technologies, higher and higher requirements are put on the transmission rate and the transmission delay of a wireless communication system. In order to achieve higher transmission rates and lower transmission delays, The 3rd Generation Partnership Project (3 GPP) introduced Dual Connectivity (DC) technology. The DC technique means that a single User Equipment (UE) can establish communication links with two base stations respectively at the same time, and perform uplink and downlink communication through a dual communication link, thereby achieving higher-rate data transmission and lower time delay, and improving the performance of the wireless communication system.
The dual communication link can better utilize radio resources compared to the single communication link. In a specific implementation, the uplink user Data may be distributed at the terminal side and then sent to the two base stations, and finally merged at a Data link layer (PDCP) of the main base station and sent to the core network. However, the split ratio is configured in the reconfiguration message in the terminal access process, when the wireless channel environment changes, one communication link is easily congested, and the other communication link is idle, so that the wireless resources cannot be reasonably utilized, and the utilization rate of the wireless resources is reduced.
Disclosure of Invention
Embodiments of the present invention provide an uplink data offloading method and apparatus, so as to solve a problem in the prior art that a offloading manner of a dual communication link is easy to reduce a utilization rate of a radio resource.
In one aspect, an embodiment of the present invention provides an uplink data offloading method, where the method includes:
determining a signal to interference plus noise ratio (SINR) of a Sounding Reference Signal (SRS) reported by a terminal;
determining a first base station which is a main path of the current separated Radio Bearer (RB) of the terminal, and judging whether the SINR meets a shunting parameter switching condition corresponding to the first base station;
wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; if the first base station is a main base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is higher than a first SRS power threshold; if the first base station is an auxiliary base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is lower than a second SRS power threshold;
and if the SINR meets the shunting parameter switching condition, setting the main path for separating the RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station.
On the other hand, an embodiment of the present invention further provides an uplink data offloading device, which is applied to a server, and the device includes:
an SINR determining module, configured to determine a signal to interference plus noise ratio SINR of a Sounding Reference Signal (SRS) reported by a terminal;
a main base station determining module, configured to determine a first base station serving as a main path of the current RB separation radio bearer of the terminal, and determine whether the SINR meets a split parameter switching condition corresponding to the first base station;
wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; if the first base station is a main base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is higher than a first SRS power threshold; if the first base station is an auxiliary base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is lower than a second SRS power threshold;
and the shunting parameter switching module is used for setting the main path for separating the RB as a second base station in a communication connection state with the terminal and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station if the SINR meets the shunting parameter switching condition.
In another aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor, when executing the computer program, implements the steps in the uplink data offloading method described above.
In another aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps in the uplink data offloading method described above are implemented.
In the embodiment of the invention, the signal to interference plus noise ratio SINR of a Sounding Reference Signal (SRS) reported by a terminal is determined, then a first base station which is used as a main path of a current separation Radio Bearer (RB) of the terminal is determined, and whether the SINR meets a shunting parameter switching condition corresponding to the first base station is judged; if the SINR meets the shunting parameter switching condition, executing shunting parameter reconfiguration, setting the main path for separating the RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station; the quality of a wireless channel is monitored through SINR, when the change of the wireless channel environment is detected, a shunting parameter switching process is executed, shunting parameters are dynamically modified, the utilization rate of wireless resources is improved, and the situation that one communication link is congested and the other communication link is idle due to the fact that the SINR is too high or too low continuously is avoided, so that the performance is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a flowchart illustrating steps of an uplink data offloading method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first example of an embodiment of the present invention;
fig. 3 is a block diagram of an uplink data offloading device according to an embodiment of the present invention;
fig. 4 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following 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 invention.
Referring to fig. 1, an embodiment of the present invention provides an uplink data offloading method, and optionally, the method may be applied to a primary base station or a secondary base station in a dual communication link with a terminal.
The method comprises the following steps:
In this step, a Sounding Reference Signal (SRS) is a last Single-carrier Frequency-Division Multiple Access (SC-FDMA) symbol located in one subframe, and is periodically reported to the base station by the terminal UE, and the base station uses the SRS as an uplink channel quality estimation and channel selection to calculate a Signal to Interference plus Noise Ratio (SINR) of an uplink channel.
SINR refers to the ratio of the strength of the received desired signal to the strength of the received interfering signals (noise and interference); optionally, in the process of determining the SINR, the base station places the uplink SRS of each UE in the last block of one subframe. The frequency domain spacing of the SRS is two equivalent subcarriers, so the SRS of one UE interferes only with the SRS of other UEs.
Therefore, SINR is SRS received power/(interference power + noise power);
the SRS received power is SRS transmit power and link loss, and the interference power is the sum of SRS received powers of all UEs in the neighboring cell.
The auxiliary base station receives the SRS reported by the UE and all the adjacent cell UEs, the SRS reported by the UE comprises SRS transmitting power and link loss, and then the SRS receiving power of the UE is determined; the SRS reported by the adjacent cell UE comprises the SRS receiving power of all the adjacent cell UE; and the auxiliary base station also receives the noise power of the UE, and then obtains the SINR of the UE according to the SRS receiving power, the interference power and the noise power of the UE.
wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; if the first base station is a main base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is higher than a first SRS power threshold; and if the first base station is an auxiliary base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is lower than a second SRS power threshold.
In this step, the first base station may be a primary base station or a secondary base station in a dual communication link with the UE. A Radio Bearer (RB) is a connection between the UE and the network side. Separating the RB (Split RB), namely the Split RB, determining a first base station of the main path of the radio bearer RB currently separated by the UE, determining a shunting parameter switching condition corresponding to the first base station according to different types of the first base station, and then judging whether the SINR meets the shunting parameter switching condition or not.
Specifically, in a first case, if the first base station is a master base station (MeNB), the offloading parameter switching condition corresponding to the master base station includes: the SINR meets the number of times of the SRS power requirement corresponding to the first base station reaches a shunting parameter adjustment threshold, and the SRS power requirement is that the SINR is higher than a first SRS power threshold; the first SRS power threshold is a preset SRS power high threshold of the main uplink data shunting path; if the SINR is higher than the first SRS power threshold, recording the accumulated times, and if the accumulated times exceed a shunting parameter adjustment threshold N, determining that the SINR meets a shunting parameter switching condition; in the process of recording the number of accumulations, if the SINR is lower than the first SRS power threshold before the number of accumulations reaches N, the number of accumulations is cleared.
In case two, if the first base station is a secondary base station (SeNB), the conditions for switching the offloading parameters corresponding to the secondary master base station include: the SINR meets the number of times of the SRS power requirement corresponding to the first base station reaches a shunting parameter adjustment threshold, and the SRS power requirement is that the SINR is lower than a second SRS power threshold; the second SRS power threshold is a preset SRS power low threshold of the main uplink data shunting path; if the SINR is lower than a second SRS power threshold, recording the accumulated times, and if the accumulated times exceed a shunting parameter adjustment threshold N, determining that the SINR meets a shunting parameter switching condition; in the process of recording the number of accumulations, if the SINR becomes higher than the second SRS power threshold before the number of accumulations reaches N1, the number of accumulations is cleared.
In this step, if the SINR satisfies the splitting parameter switching condition, a splitting parameter switching procedure is executed, the main path for separating the RBs is set as the second base station, and meanwhile, the SRS power threshold in the SRS power requirement is adjusted.
Specifically, for the first situation, if the first base station is the primary base station, the second base station is the secondary base station, and the offloading parameter adjustment threshold is adjusted to the SRS adjustment threshold corresponding to the secondary base station, where the SRS adjustment threshold corresponding to the secondary base station is the "best" uplink data split threshold of the user, for example, the SINR value range is [15, 20 ].
For the second situation, if the first base station is a secondary base station, the second base station is a primary base station, and the offloading parameter adjustment threshold is adjusted to the SRS adjustment threshold corresponding to the primary base station, where the SRS adjustment threshold corresponding to the secondary base station is a "difference point" user uplink data split threshold, for example, the SINR value range is [ -5, 0 ].
In the embodiment of the invention, the signal to interference plus noise ratio SINR of an SRS reported by a terminal is determined, then a first base station which is used as a main path of a current separated radio bearer RB of the terminal is determined, and whether the SINR meets a shunting parameter switching condition corresponding to the first base station is judged; if the SINR meets the shunting parameter switching condition, executing shunting parameter reconfiguration, setting the main path for separating the RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station; the quality of a wireless channel is monitored through SINR, when the change of the wireless channel environment is detected, a shunting parameter switching process is executed, shunting parameters are dynamically modified, the utilization rate of wireless resources is improved, and the situation that one communication link is congested and the other communication link is idle due to the fact that the SINR is too high or too low continuously is avoided, so that the performance is reduced. The embodiment of the invention solves the problem that the utilization rate of wireless resources is easily reduced by the shunting mode of the dual communication link in the prior art.
Optionally, in an embodiment of the present invention, step 103 includes:
and judging that the shunting parameter adjustment threshold is different from the target adjustment threshold, setting the main path of the separated RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold to be a target adjustment threshold corresponding to the second base station.
In this step, it is necessary to determine whether to execute a shunt parameter switching process at present; specifically, when the shunt parameter adjustment threshold (i.e. the current actual shunt parameter adjustment threshold) is judged to be different from the target adjustment threshold, the handover is executed; otherwise, the switching process is not executed.
Optionally, in this embodiment of the present invention, the shunting parameter adjustment threshold is a ratio of a preset shunting time threshold to a non-codebook period of the SRS.
The preset shunting time threshold is a time threshold for judging whether the SRS power judgment continuously meets the condition by the uplink data shunting main path; non-codebook, i.e. non-codebook precoding, based on non-codebook based precoding, where UE specific reference signals are inserted into each antenna port before precoding. The non-codebook period of the SRS is the SRS period of the SRS during non-codebook precoding.
Optionally, in this embodiment of the present invention, the step of setting the main path of the detached RB as the second base station in a communication connection state with the terminal includes:
controlling the first base station to set a main path for separating the RB as a second base station in a communication connection state with the terminal, and starting a preset timer;
and if the preset timer is overtime, controlling the first base station to release the terminal.
In this step, a preset timer is started while main path switching is executed, so that abnormality including an idle reconfiguration overtime abnormality in a subsequent flow is prevented; if the timer is overtime, the second base station does not reply the configuration modification completion message of the first base station, and the first base station releases the terminal;
optionally, in this embodiment of the present invention, the step of setting the main path of the detached RB as the second base station in a communication connection state with the terminal, and adjusting the offloading parameter adjustment threshold to a target adjustment threshold corresponding to the second base station includes:
and sending an air interface reconfiguration message to the terminal, wherein the air interface reconfiguration message carries indication information for indicating that the main path is set as a second base station and the SRS power threshold is adjusted to a target adjustment threshold corresponding to the second base station.
In this step, the air interface reconfiguration message is used to carry the specific content of the shunt parameter switching and indicate to the terminal, so that the terminal executes the shunt parameter reconfiguration.
Further, in this embodiment of the present invention, after the step of sending the air interface reconfiguration message to the terminal, the method includes:
and receiving a configuration completion message aiming at the air interface reconfiguration message sent by the terminal, and updating the shunting parameters of the terminal.
And when the terminal completes the feedback of the shunting parameter reconfiguration, the base station side updates the shunting parameter of the terminal.
For example, referring to fig. 2, fig. 2 shows a specific application scenario of an uplink data offloading method according to an embodiment of the present invention, where the method is executed by the secondary base station in fig. 2, and the RRC shown in fig. 2 is a Radio Resource Control layer (Radio Resource Control);
RRM is Radio Resource Management (Radio Resource Management);
x2AP is X2 Application Protocol interface (X2 Application Protocol);
the RLC is a Radio Link Control layer (Radio Link Control);
the MAC is a Medium Access Control layer (Medium Access Control);
the shunting parameter switching mainly comprises the following processes:
1. and the MAC layer of the auxiliary base station detects that the channel quality changes, and generates a shunting parameter adjustment request to the RRC/RRM layer of the auxiliary base station.
Specifically, after detecting that the SINR satisfies the split parameter switching condition, the MAC layer on the secondary base station side sends a split adjustment request message to the RRC/RRM layer.
Specifically, the secondary base station MAC layer detects the sounding reference signal to obtain an SINR, estimates the uplink channel quality by the SINR, and uses the uplink channel quality as an input parameter for uplink shunt parameter adjustment, where a specific decision process is as follows:
(1) and if the current main Path (Primary Path) of the UE Split RB is the main base station, the SINR of the SRS reported by the UE is higher than a first SRS power threshold (Ua), and the first SRS power threshold is the SRS power high threshold judged by the uplink data shunting main Path, adding 1 to the accumulation frequency N.
And if the N reaches a distribution parameter adjustment threshold (Ub), sending a distribution parameter adjustment request message to the RRC, wherein the distribution parameter adjustment request message indicates that the Primary Path of the Split RB is set as a secondary base station, the distribution parameter adjustment threshold (Ub) is set as a good user uplink data Split threshold, and the times N is cleared to 0.
And if the current Primary Path of the UE Split RB is the main base station and the reported SINR of the SRS is lower than UA, the times N are clear and 0.
(2) And if the current Primary Path of the UE Split RB is the secondary base station and the SINR of the reported SRS is lower than a second SRS power threshold (Uc), the second SRS power threshold is the SRS power low threshold judged by the uplink data shunting main Path, and the number of times is accumulated N.
And if the N reaches Ub, sending a shunting parameter adjustment request message to RRC, setting the load bearing PrimaryPath as a main base station, setting a shunting parameter adjustment threshold (Ub) as a difference point user uplink data split threshold, and clearing 0 the time N.
And if the current Primary Path of the UE Split RB is the secondary base station and the SINR second SRS power threshold of the SRS is reported, the times N are clear and 0.
Wherein, the shunt parameter adjustment threshold is defined as follows:
a shunting parameter adjustment threshold Ub is a preset shunting time threshold/SRS period of a non-codebook;
the preset shunting time threshold is a time threshold for uplink data shunting main path, and the SRS power judgment is judged to continuously meet the condition.
The RRC/RRM layer decides whether to perform a dynamic change procedure.
If the dynamic change is determined to be executed, executing step 3, constructing a secondary base station configuration modification request and sending the secondary base station configuration modification request to an X2AP interface;
specifically, when the RRC/RRM layer receives the split dynamic adjustment request message of the MAC, it determines each bearer in the message:
if the dynamic shunting parameter is configured currently and the uplink shunting parameter (shunting parameter adjustment threshold) in the message is different from the current uplink shunting parameter configuration, the bearer reported by the MAC layer is considered to be effective; if all the bearers reported by the MAC layer are effective bearers, triggering a secondary base station configuration modification process for the bearers;
otherwise, the MAC layer is considered to report the message error, and abnormal processing is executed.
3. And constructing a secondary base station configuration modification request and sending the secondary base station configuration modification request to an X2AP interface.
The X2AP interface sends a dual connectivity configuration modification request to the main base station RRC and starts a configuration modification timer.
Specifically, the configuration modification timer is set to prevent an exception from occurring in the subsequent flow, including an empty reconfiguration timeout, and if the timer is timeout, the configuration modification completion message of the secondary base station is not replied, and the UE is released.
5. And the main base station RRM judges the content needing to be modified according to the received double-connection configuration modification request.
The main base station RRM constructs an air interface reconfiguration message according to the received configuration modification request, and the air interface reconfiguration message is used for updating the distribution parameter configuration of the UE;
6. and the main base station RRC constructs an empty port reconfiguration message and sends the empty port reconfiguration message to the UE.
7. The main base station RRC receives a reconfiguration completion message from the terminal;
the terminal reports a reconfiguration completion message to indicate that the terminal has completed updating the shunting parameters;
8. the main base station RRC sends a double-connection configuration modification completion message to X2 AP;
the main base station completes the dual connectivity configuration modification procedure and replies with a message to X2 AP.
9, the X2AP replies that the configuration modification of the auxiliary base station is completed to the auxiliary base station RRC, and stops the configuration modification timer;
10. the auxiliary base station RRM updates the resource table and stores the current successfully updated shunting parameter configuration;
once the distribution parameters are updated, the RRM of the secondary base station needs to store the current configuration for the abnormal judgment of the uplink distribution parameter dynamic adjustment message reported by the MAC, for example, the reported bearer is not a split bearer, the reported bearer parameters are not changed, and the like.
11. And the auxiliary base station RRC replies a shunting parameter adjustment confirmation message to the MAC.
After the auxiliary base station configuration modification process is completed, the RRC sends the message to inform the completion of the updating of the MAC uplink distribution parameters, and the message carries the updated distribution parameters.
In specific implementation, a main path judgment SRS power high-low threshold, a time threshold for an uplink data splitting main path to judge whether the SRS power continuously meets the condition, and a good point/bad point user uplink data split threshold may be preset.
In the above example, the distribution parameter configuration is dynamically updated in consideration of a changeable wireless channel environment, so that the transmission performance degradation caused by unreasonable distribution parameters is avoided.
In the embodiment of the invention, the signal to interference plus noise ratio SINR of an SRS reported by a terminal is determined, then a first base station which is used as a main path of a current separated radio bearer RB of the terminal is determined, and whether the SINR meets a shunting parameter switching condition corresponding to the first base station is judged; if the SINR meets the shunting parameter switching condition, executing shunting parameter reconfiguration, setting the main path for separating the RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station; the quality of a wireless channel is monitored through SINR, when the change of the wireless channel environment is detected, a shunting parameter switching process is executed, shunting parameters are dynamically modified, and the situation that one communication link is congested and the other communication link is idle due to the fact that the SINR is too high or too low continuously is avoided, so that performance is reduced, and user experience is influenced.
The uplink data offloading method provided by the embodiment of the present invention is described above, and the uplink data offloading device provided by the embodiment of the present invention is described below with reference to the accompanying drawings.
Referring to fig. 3, an embodiment of the present invention further provides an uplink data offloading device, where the device includes:
an SINR determining module 301, configured to determine a signal to interference plus noise ratio SINR of the sounding reference signal SRS reported by the terminal.
The Sounding Reference Signal (SRS) is a Single-carrier Frequency-Division Multiple Access (SC-FDMA) symbol located at the last of a subframe, and is periodically reported to the base station by the terminal UE, and the base station uses the SRS as an uplink channel quality estimation and channel selection to calculate a Signal to Interference plus Noise Ratio (SINR) of an uplink channel.
SINR refers to the ratio of the strength of the received desired signal to the strength of the received interfering signals (noise and interference); optionally, in the process of determining the SINR, the base station places the uplink SRS of each UE in the last block of one subframe. The frequency domain spacing of the SRS is two equivalent subcarriers, so the SRS of one UE interferes only with the SRS of other UEs.
Therefore, SINR is SRS received power/(interference power + noise power);
the SRS received power is SRS transmit power and link loss, and the interference power is the sum of SRS received powers of all UEs in the neighboring cell.
The auxiliary base station receives the SRS reported by the UE and all the adjacent cell UEs, the SRS reported by the UE comprises SRS transmitting power and link loss, and then the SRS receiving power of the UE is determined; the SRS reported by the adjacent cell UE comprises the SRS receiving power of all the adjacent cell UE; and the auxiliary base station also receives the noise power of the UE, and then obtains the SINR of the UE according to the SRS receiving power, the interference power and the noise power of the UE.
A main base station determining module 302, configured to determine a first base station serving as a main path of the current RB of the terminal, and determine whether the SINR meets a split parameter switching condition corresponding to the first base station;
wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; if the first base station is a main base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is higher than a first SRS power threshold; and if the first base station is an auxiliary base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is lower than a second SRS power threshold.
Wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; if the first base station is a main base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is higher than a first SRS power threshold; and if the first base station is an auxiliary base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is lower than a second SRS power threshold.
The first base station may be a primary base station or a secondary base station in a dual communication link with the UE. A Radio Bearer (RB) is a connection between the UE and the network side. Separating the RB (Split RB), namely the Split RB, determining a first base station of the main path of the radio bearer RB currently separated by the UE, determining a shunting parameter switching condition corresponding to the first base station according to different types of the first base station, and then judging whether the SINR meets the shunting parameter switching condition or not.
Specifically, in a first case, if the first base station is a master base station (MeNB), the offloading parameter switching condition corresponding to the master base station includes: the SINR meets the number of times of the SRS power requirement corresponding to the first base station reaches a shunting parameter adjustment threshold, and the SRS power requirement is that the SINR is higher than a first SRS power threshold; the first SRS power threshold is a preset SRS power high threshold of the main uplink data shunting path; if the SINR is higher than the first SRS power threshold, recording the accumulated times, and if the accumulated times exceed a shunting parameter adjustment threshold N, determining that the SINR meets a shunting parameter switching condition; in the process of recording the number of accumulations, if the SINR is lower than the first SRS power threshold before the number of accumulations reaches N, the number of accumulations is cleared.
In case two, if the first base station is a secondary base station (SeNB), the conditions for switching the offloading parameters corresponding to the secondary master base station include: the SINR meets the number of times of the SRS power requirement corresponding to the first base station reaches a shunting parameter adjustment threshold, and the SRS power requirement is that the SINR is lower than a second SRS power threshold; the second SRS power threshold is a preset SRS power low threshold of the main uplink data shunting path; if the SINR is lower than a second SRS power threshold, recording the accumulated times, and if the accumulated times exceed a shunting parameter adjustment threshold N, determining that the SINR meets a shunting parameter switching condition; in the process of recording the number of accumulations, if the SINR becomes higher than the second SRS power threshold before the number of accumulations reaches N1, the number of accumulations is cleared.
A splitting parameter switching module 303, configured to set the main path for separating the RB to the second base station in a communication connection state with the terminal and adjust the splitting parameter adjustment threshold to a target adjustment threshold corresponding to the second base station if the SINR meets the splitting parameter switching condition.
And if the SINR meets the shunting parameter switching condition, executing a shunting parameter switching process, setting the main path for separating the RB as a second base station, and simultaneously adjusting the SRS power threshold value in the SRS power requirement.
Specifically, for the first situation, if the first base station is the primary base station, the second base station is the secondary base station, and the offloading parameter adjustment threshold is adjusted to the SRS adjustment threshold corresponding to the secondary base station, where the SRS adjustment threshold corresponding to the secondary base station is the "best" uplink data split threshold of the user, for example, the SINR value range is [15, 20 ].
For the second situation, if the first base station is a secondary base station, the second base station is a primary base station, and the offloading parameter adjustment threshold is adjusted to the SRS adjustment threshold corresponding to the primary base station, where the SRS adjustment threshold corresponding to the secondary base station is a "difference point" user uplink data split threshold, for example, the SINR value range is [ -5, 0 ].
Optionally, in this embodiment of the present invention, the offloading parameter switching module 303 includes:
and the judging submodule is used for judging that the shunting parameter adjustment threshold is different from the target adjustment threshold, setting the main path of the separated RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold to be the target adjustment threshold corresponding to the second base station.
Optionally, in this embodiment of the present invention, the shunting parameter adjustment threshold is a ratio of a preset shunting time threshold to a non-codebook period of the SRS.
Optionally, in this embodiment of the present invention, the offloading parameter switching module 303 includes:
the timing submodule is used for controlling the first base station to set the main path of the separated RB as a second base station which is in a communication connection state with the terminal, and starting a preset timer;
and if the preset timer is overtime, controlling the first base station to release the terminal.
Optionally, in this embodiment of the present invention, the offloading parameter switching module 303 includes:
and a message sending sub-module, configured to send an air interface reconfiguration message to the terminal, where the air interface reconfiguration message carries indication information used to indicate that the main path is set as the second base station and the SRS power threshold is adjusted to a target adjustment threshold corresponding to the second base station.
Optionally, in an embodiment of the present invention, the apparatus includes:
and the parameter updating module is used for receiving a configuration completion message aiming at the air interface reconfiguration message and sent by the terminal, and updating the shunting parameters of the terminal.
The uplink data offloading device provided in the embodiment of the present invention can implement each process implemented by the uplink data offloading device in the method embodiments in fig. 1 to fig. 2, and for avoiding repetition, details are not described here again.
In the embodiment of the present invention, an SINR determining module 301 determines a signal to interference plus noise ratio SINR of an SRS reported by a terminal, and then a main base station determining module 302 determines a first base station serving as a main path of a current separated radio bearer RB of the terminal, and determines whether the SINR satisfies a split parameter switching condition corresponding to the first base station; if the SINR satisfies the splitting parameter switching condition, the splitting parameter switching module 303 performs splitting parameter reconfiguration, sets the main path of the split RB as a second base station in a communication connection state with the terminal, and adjusts the splitting parameter adjustment threshold to a target adjustment threshold corresponding to the second base station; the quality of a wireless channel is monitored through SINR, when the change of the wireless channel environment is detected, a shunting parameter switching process is executed, shunting parameters are dynamically modified, the utilization rate of wireless resources is improved, and the situation that one communication link is congested and the other communication link is idle due to the fact that the SINR is too high or too low continuously is avoided, so that the performance is reduced. The embodiment of the invention solves the problem that the utilization rate of wireless resources is easily reduced by the shunting mode of the dual communication link in the prior art.
On the other hand, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, a bus, and a computer program that is stored in the memory and can be run on the processor, where the processor implements the steps in the uplink data offloading method when executing the program.
For example, fig. 4 shows a schematic physical structure diagram of an electronic device.
As shown in fig. 4, the electronic device may include: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 4100, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 4100. The processor 410 may call logic instructions in the memory 430 to perform the following method:
determining a signal to interference plus noise ratio (SINR) of a Sounding Reference Signal (SRS) reported by a terminal;
determining a first base station which is a main path of the current separated Radio Bearer (RB) of the terminal, and judging whether the SINR meets a shunting parameter switching condition corresponding to the first base station;
wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; if the first base station is a main base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is higher than a first SRS power threshold; if the first base station is an auxiliary base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is lower than a second SRS power threshold;
and if the SINR meets the shunting parameter switching condition, setting the main path for separating the RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program is implemented to perform the uplink data offloading method provided in the foregoing embodiments, for example, the method includes:
determining a signal to interference plus noise ratio (SINR) of a Sounding Reference Signal (SRS) reported by a terminal;
determining a first base station which is a main path of the current separated Radio Bearer (RB) of the terminal, and judging whether the SINR meets a shunting parameter switching condition corresponding to the first base station;
wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; if the first base station is a main base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is higher than a first SRS power threshold; if the first base station is an auxiliary base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is lower than a second SRS power threshold;
and if the SINR meets the shunting parameter switching condition, setting the main path for separating the RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station.
The above-described embodiments of the apparatus are merely illustrative, and 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 modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (14)
1. An uplink data offloading method, comprising:
determining a signal to interference plus noise ratio (SINR) of a Sounding Reference Signal (SRS) reported by a terminal;
determining a first base station which is a main path of the current separated Radio Bearer (RB) of the terminal, and judging whether the SINR meets a shunting parameter switching condition corresponding to the first base station;
wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; if the first base station is a main base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is higher than a first SRS power threshold; if the first base station is an auxiliary base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is lower than a second SRS power threshold;
and if the SINR meets the shunting parameter switching condition, setting the main path for separating the RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station.
2. The uplink data splitting method according to claim 1, wherein the step of setting the primary path of the split RB as a second base station in a communication connection state with the terminal, and adjusting the splitting parameter adjustment threshold to a target adjustment threshold corresponding to the second base station includes:
and judging that the shunting parameter adjustment threshold is different from the target adjustment threshold, setting the main path of the separated RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold to be a target adjustment threshold corresponding to the second base station.
3. The uplink data splitting method according to claim 1, wherein the splitting parameter adjustment threshold is a ratio of a preset splitting time threshold to a non-codebook period of the SRS.
4. The uplink data splitting method according to claim 1, wherein the step of setting the primary path of the split RB as the second base station in a communication connection state with the terminal includes:
controlling the first base station to set a main path for separating the RB as a second base station in a communication connection state with the terminal, and starting a preset timer;
and if the preset timer is overtime, controlling the first base station to release the terminal.
5. The uplink data splitting method according to claim 1, wherein the step of setting the primary path of the split RB as a second base station in a communication connection state with the terminal, and adjusting the splitting parameter adjustment threshold to a target adjustment threshold corresponding to the second base station includes:
and sending an air interface reconfiguration message to the terminal, wherein the air interface reconfiguration message carries indication information for indicating that the main path is set as a second base station and the SRS power threshold is adjusted to a target adjustment threshold corresponding to the second base station.
6. The uplink data offloading method according to claim 5, wherein after the step of sending the air interface reconfiguration message to the terminal, the method includes:
and receiving a configuration completion message aiming at the air interface reconfiguration message sent by the terminal, and updating the shunting parameters of the terminal.
7. An uplink data splitting apparatus, the apparatus comprising:
an SINR determining module, configured to determine a signal to interference plus noise ratio SINR of a Sounding Reference Signal (SRS) reported by a terminal;
a main base station determining module, configured to determine a first base station serving as a main path of the current RB separation radio bearer of the terminal, and determine whether the SINR meets a split parameter switching condition corresponding to the first base station;
wherein the shunting parameter switching condition comprises: the accumulated times of a target event reach a shunting parameter adjustment threshold value, and the target event is that the SINR meets the SRS power requirement corresponding to the first base station; if the first base station is a main base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is higher than a first SRS power threshold; if the first base station is an auxiliary base station in a communication connection state with the terminal, the SRS power requirement is that the SINR is lower than a second SRS power threshold;
and the shunting parameter switching module is used for setting the main path for separating the RB as a second base station in a communication connection state with the terminal and adjusting the shunting parameter adjustment threshold value to a target adjustment threshold value corresponding to the second base station if the SINR meets the shunting parameter switching condition.
8. The uplink data splitting device according to claim 7, wherein the splitting parameter switching module includes:
and the judging submodule is used for judging that the shunting parameter adjustment threshold is different from the target adjustment threshold, setting the main path of the separated RB as a second base station in a communication connection state with the terminal, and adjusting the shunting parameter adjustment threshold to be the target adjustment threshold corresponding to the second base station.
9. The uplink data splitting device according to claim 7, wherein the splitting parameter adjustment threshold is a ratio of a preset splitting time threshold to a non-codebook period of the SRS.
10. The uplink data splitting device according to claim 7, wherein the splitting parameter switching module includes:
the timing submodule is used for controlling the first base station to set the main path of the separated RB as a second base station which is in a communication connection state with the terminal, and starting a preset timer;
and if the preset timer is overtime, controlling the first base station to release the terminal.
11. The uplink data splitting device according to claim 7, wherein the splitting parameter switching module includes:
and a message sending sub-module, configured to send an air interface reconfiguration message to the terminal, where the air interface reconfiguration message carries indication information used to indicate that the main path is set as the second base station and the SRS power threshold is adjusted to a target adjustment threshold corresponding to the second base station.
12. The uplink data splitting device according to claim 11, wherein the device comprises:
and the parameter updating module is used for receiving a configuration completion message aiming at the air interface reconfiguration message and sent by the terminal, and updating the shunting parameters of the terminal.
13. An electronic device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the upstream data splitting method according to any of claims 1 to 6.
14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the uplink data splitting method according to any one of claims 1 to 6.
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| MX2022005876A MX2022005876A (en) | 2019-11-15 | 2020-09-01 | Uplink data division method and apparatus. |
| PCT/CN2020/112809 WO2021093424A1 (en) | 2019-11-15 | 2020-09-01 | Uplink data division method and apparatus |
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| CN109246696B (en) * | 2017-06-16 | 2021-04-20 | 华为技术有限公司 | Key processing method and related device |
| CN110139324B (en) * | 2018-02-08 | 2022-07-12 | 大唐移动通信设备有限公司 | Message transmission method and device and computer storage medium |
| US11039331B2 (en) * | 2018-03-28 | 2021-06-15 | Samsung Electronics Co., Ltd. | Apparatus and method for measurement in wireless communication system |
| CN109673023B (en) * | 2018-11-12 | 2022-04-01 | 中国科学院上海高等研究院 | Method, system, computer storage medium, and device for operating link communication mode |
| CN110225553B (en) * | 2019-05-31 | 2022-05-13 | 中国联合网络通信集团有限公司 | Data distribution method, device and system |
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| CN106941733A (en) * | 2016-01-04 | 2017-07-11 | 中兴通讯股份有限公司 | Method for realizing reconfiguration in dual connection, main service base station and auxiliary service base station |
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| WO2018127322A1 (en) * | 2017-01-05 | 2018-07-12 | Panasonic Intellectual Property Corporation Of America | Methods and apparatuses for selecting a radio link in a mobile communication system |
| WO2019046572A1 (en) * | 2017-08-30 | 2019-03-07 | Qualcomm Incorporated | Dual connectivity with a network that utilizes an unlicensed frequency spectrum |
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