CN102130728A - Method, system and device for measuring and configuring multi-carrier system - Google Patents
Method, system and device for measuring and configuring multi-carrier system Download PDFInfo
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Abstract
The invention discloses a method for measuring and configuring a multi-carrier system, comprising the following steps: acquiring measurement start thresholds of member carriers and/or carrier groups by use equipment (UE); acquiring the signal quality of the member carriers and/or carrier groups; and staring or closing the measurement of the member carriers and/or carrier groups by the UE in accordance with the measurement start thresholds and the signal quality. In the invention, by configuring the measurement start thresholds for the member carriers and/or carrier groups, the UE can start or close the measurement of the member carriers and/or carrier groups in accordance with the measurement start thresholds and the signal quality, thus solving the problem how to start the measurement in multiple working cells by a terminal in accordance with the multi-carrier signal quality, thereby saving electric quantity of the UE and providing greater flexibility for the multi-carrier network management at the same time.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a system, and a device for measurement configuration of a multi-carrier system.
Background
LTE (Long Term Evolution ) is the Evolution of 3G (3rd Generation, third Generation digital communication), LTE improves and enhances the 3G over-the-air access technology, and adopts OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple Input Multiple Output) as the LTE wireless network Evolution standard. In the LTE system and the previous wireless communication system, there is only one carrier in one cell, as shown in fig. 1, the maximum bandwidth in the LTE system is 20 MHz; under the spectrum bandwidth of 20MHz, LTE can provide the peak rate of 100Mbit/s downlink and 50Mbit/s uplink, improve the performance of cell edge users, improve the cell capacity and reduce the system delay. In addition, in the LTE system, a UE (User Equipment) can only operate on one carrier at the same time, and one LTE cell has only one carrier, and each LTE cell is identified by a number unique in the network. The UE can only transmit and receive data in one cell at the same time, and the cell is also called a serving cell of the UE.
As the number of mobile end users increases rapidly, the traffic capacity of the end users increases exponentially, and in order to meet the ever-increasing traffic demands of the end users, it is necessary to provide more bandwidth to meet the higher peak rates required by the end users' traffic and applications. In an LTE-a (LTE-Advanced ) system, the peak rate of the system is greatly improved compared with that of LTE, and it is required to reach 1Gbps downlink and 500Mbps uplink, and at this time, if only one carrier with the maximum bandwidth of 20MHz is used, it is obviously impossible to reach the peak rate. Therefore, the LTE-a system needs to expand the bandwidth that can be used by the end user, thereby introducing a CA (Carrier Aggregation) technology that aggregates multiple continuous or discontinuous carriers under the same eNB (or base station) (which cannot be aggregated between cells or component carriers under different enbs) and simultaneously serves the UE to provide the rate required by the UE. The aggregated carriers are also called CC (Component Carrier).
Specifically, the aggregated cells may use the same PCI (Physical Layer Cell ID) except that the carrier frequency and CGI (Global Cell ID) are different between the respective cells (GCI may also be referred to as ECGI, i.e., E-UTRAN Cell Global ID). The UE is capable of simultaneous reception and transmission of data on multiple (pairs of) carriers in multiple polymerizable cell sets, thereby increasing data transmission rates. In order to ensure that the UE of the LTE system can operate on each aggregated carrier, it is required that each carrier does not exceed 20MHz at most. As shown in fig. 2, a carrier aggregation technology in the LTE-a system is a schematic view of a carrier aggregation technology under LTE-a, and it can be seen that there are 4 carriers that can be aggregated under a base station of LTE-a, and the base station can perform data transmission with a UE on the 4 carriers at the same time, so as to improve system throughput.
In the prior art, when a UE of an LTE system works on a single carrier, a network side may configure a measurement start threshold (S-measure) for the UE, and if the channel quality of a UE serving cell is lower than the S-measure, the UE starts a configured measurement process; and if the network side does not provide the S-measure during the measurement configuration of the UE, the UE starts a corresponding measurement process according to the configuration information after receiving the measurement configuration. It can be seen that, when the network side configures the S-measure, the S-measure is a threshold for whether the UE starts measurement.
In the process of implementing the invention, the inventor finds that at least the following disadvantages exist in the prior art:
the measurement start thresholds used by the current measurement configuration are all for the UE, i.e. each UE has only one measurement start threshold S-measure, so that the start and stop processes of the measurement can only be performed for the UE. For the multi-carrier system of LTE-a, since the UE can operate on multiple carriers in an aggregation manner, the related measurements cannot be individually performed on multiple carriers of the UE in the prior art.
Disclosure of Invention
The invention provides a measurement configuration method, a measurement configuration system and measurement configuration equipment of a multi-carrier system, which are used for carrying out the opening and closing processes of relevant measurement on a plurality of carriers of UE (user equipment) in the multi-carrier system, saving the electric quantity of the UE and providing greater flexibility for network management of multi-carrier.
In order to achieve the above object, an embodiment of the present invention provides a measurement configuration method for a multi-carrier system, including:
the method comprises the steps that user equipment obtains a measurement starting threshold of a member carrier and/or a carrier group; and acquiring the signal quality of the member carrier and/or the carrier group;
and the user equipment starts or closes the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality.
The embodiment of the present invention further provides a UE, including:
an obtaining module, configured to obtain a measurement start threshold of a component carrier and/or a carrier group; and acquiring the signal quality of the member carrier and/or the carrier group;
and the processing module is used for starting or closing the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality acquired by the acquisition module.
The embodiment of the invention also provides a measurement configuration method of the multi-carrier system, which comprises the following steps:
the network side equipment configures a measurement starting threshold of a member carrier and/or a carrier group for the user equipment;
and the network side equipment sends the measurement starting threshold of the member carrier and/or the carrier group to the user equipment, and the user equipment starts or closes the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality of the member carrier and/or the carrier group.
An embodiment of the present invention further provides a network side device, including:
a configuration module, configured to configure a measurement start threshold of a member carrier and/or a carrier group for a user equipment;
a sending module, configured to send the measurement starting threshold of the component carrier and/or the carrier group configured by the configuration module to the user equipment, and the user equipment starts or closes measurement of the component carrier and/or the carrier group according to the measurement starting threshold and the signal quality of the component carrier and/or the carrier group.
The embodiment of the present invention further provides a measurement configuration system of a multi-carrier system, including:
the network side equipment is used for configuring a measurement starting threshold of the member carrier and/or the carrier group for the user equipment; sending the measurement starting threshold of the member carrier and/or the carrier group to the user equipment;
the user equipment is used for acquiring the measurement starting threshold of the member carrier and/or the carrier group and the signal quality of the member carrier and/or the carrier group; and starting or closing the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality.
Compared with the prior art, the invention has at least the following advantages:
by configuring the measurement starting threshold for the member carrier and/or the carrier group, the user equipment can start or close the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality, thereby solving the problem of how to start the measurement according to the multi-carrier signal quality in a plurality of working cells by the terminal, saving the electric quantity of the user equipment and providing greater flexibility for the network to manage the multi-carrier.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments 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 to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of only one carrier in one cell in a prior art LTE system;
fig. 2 is a schematic diagram of a carrier aggregation technique under LTE-a in the prior art;
fig. 3 is a flowchart illustrating a measurement configuration method of a multi-carrier system according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a measurement configuration method of a multi-carrier system according to a second embodiment of the present invention;
fig. 5 is a flowchart illustrating a measurement configuration method of a multi-carrier system according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a network-side device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
As shown in fig. 3, a measurement configuration method for a multi-carrier system according to an embodiment of the present invention includes the following steps:
Specifically, the obtaining, by the ue, a measurement start threshold of the component carrier and/or the carrier group includes: the user equipment acquires the independent measurement starting threshold of each member carrier; or, the user equipment obtains the independent measurement starting threshold of each carrier group; or, the user equipment acquires a uniform measurement starting threshold of all the member carriers.
It should be noted that, the manner for the ue to obtain the measurement start threshold of the component carrier and/or the carrier group includes, but is not limited to: the network side equipment configures a measurement starting threshold for the member carrier and/or the carrier group, and sends the measurement starting threshold of the member carrier and/or the carrier group to the user equipment, so that the user equipment can obtain the measurement starting threshold of the member carrier and/or the carrier group; or, directly configuring a measurement start threshold of the component carrier and/or the carrier group on the user equipment, and the like. Of course, the manner in which the ue obtains the measurement start threshold of the component carrier and/or the carrier group is not limited to the above manner, and all manners in which the ue can obtain the measurement start threshold of the component carrier and/or the carrier group are within the protection scope of the present invention.
In this embodiment of the present invention, (1) when each component carrier corresponds to a respective independent measurement start threshold, the starting or closing, by the user equipment, measurement of the component carrier and/or the carrier group according to the measurement start threshold and the signal quality includes: and the user equipment starts or closes the measurement of the member carrier according to the signal quality of each member carrier and the measurement starting threshold of the member carrier.
(2) When each carrier group corresponds to a respective independent measurement starting threshold, the starting or closing, by the user equipment, measurement of the component carrier and/or the carrier group according to the measurement starting threshold and the signal quality includes: and the user equipment starts or closes the measurement of the carrier group according to the signal quality of each carrier group and the measurement starting threshold of the carrier group.
(3) When all the component carriers correspond to a uniform measurement starting threshold, the starting or closing, by the user equipment, the measurement of the component carriers and/or the carrier groups according to the measurement starting threshold and the signal quality includes: if no grouping exists among the member carriers, the user equipment starts or closes the measurement of the member carriers according to the signal quality of each member carrier and the unified measurement starting threshold; and if the component carriers are grouped, the user equipment starts or closes the measurement of the carrier group according to the signal quality of each carrier group and the unified measurement starting threshold.
Further, the starting or stopping of the measurement of the carrier group by the user equipment according to the signal quality of each carrier group and the measurement starting threshold of the carrier group includes: the user equipment acquires the member carrier with the best signal quality in a carrier group, and starts or closes the measurement of the carrier group according to the signal quality of the member carrier with the best signal quality and the measurement starting threshold of the carrier group; or, the user equipment acquires the member carrier with the worst signal quality in the carrier group, and starts or closes the measurement of the carrier group according to the signal quality of the member carrier with the worst signal quality and the measurement starting threshold of the carrier group; or, the user equipment acquires a special cell in the carrier group, selects a member carrier corresponding to the special cell and providing security parameter input and non-access stratum NAS mobility information for the user equipment, and starts or closes measurement of the carrier group according to the signal quality of the member carrier and a measurement starting threshold of the carrier group; or, the user equipment obtains the comprehensive evaluation result of the signal quality of all the member carriers in the carrier group, and starts or closes the measurement of the carrier group according to the comprehensive evaluation result and the measurement starting threshold of the carrier group.
It should be noted that, in the above procedure, the component carriers are configured carriers, and include configured and unactivated carriers and configured and activated carriers. The Signal quality of the component carrier and/or the carrier group includes Reference Signal Received Power (RSRP) and/or Reference Signal Received Quality (RSRQ).
The specific steps of the user equipment starting or closing the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality are as follows: and starting measurement when the signal quality of the member carrier and/or the carrier group is higher than the measurement starting threshold, and closing measurement when the signal quality of the member carrier and/or the carrier group is lower than the measurement starting threshold.
Further, the measurement process is that the user equipment measures a relevant measurement object (e.g., frequency point/carrier/cell) according to the measurement configuration of the network, and the measurement quantity may be RSRP and/or RSRQ of the cell.
Therefore, by using the method provided by the invention, the user equipment can start or close the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality by configuring the measurement starting threshold for the member carrier and/or the carrier group, thereby solving the problem of how to start the measurement according to the multi-carrier signal quality by the terminal in a plurality of working cells, saving the electric quantity of the UE and providing greater flexibility for the network to manage the multi-carrier.
As shown in fig. 4, a second embodiment of the present invention provides a measurement configuration method for a multi-carrier system, including the following steps:
Specifically, the configuring, by the network side device, the measurement starting threshold of the component carrier and/or the carrier group for the user equipment includes: the network side equipment configures independent measurement starting threshold for each member carrier of the user equipment; or, the network side device configures an independent measurement start threshold for each carrier group of the user equipment; or, the network side device configures a uniform measurement starting threshold for all the component carriers of the user equipment.
The network side device sending the measurement starting threshold of the member carrier and/or the carrier group to the user equipment includes: and the network side equipment sends the measurement starting threshold of the member carrier and/or the carrier group to the user equipment through a radio resource control protocol (RRC) connection reconfiguration message.
Therefore, by using the method provided by the invention, the user equipment can start or close the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality by configuring the measurement starting threshold for the member carrier and/or the carrier group, thereby solving the problem of how to start the measurement according to the multi-carrier signal quality by the terminal in a plurality of working cells, saving the electric quantity of the UE and providing greater flexibility for the network to manage the multi-carrier.
The third embodiment of the present invention provides a measurement configuration method for a multi-carrier system, which is specific to the multi-carrier system of LTE-a, but in practical application, the measurement configuration method for the multi-carrier system may also be applied to other multi-carrier systems. As shown in fig. 5, the method comprises the steps of:
Specifically, the method for configuring the measurement start threshold for the multi-carrier of the UE by the network side device includes, but is not limited to:
the network side equipment configures independent S-measures for each member carrier; or,
the network side equipment configures independent S-measures for each member carrier group; or,
and the network side equipment configures uniform S-measures for all the member carriers.
Of course, in practical applications, the method is not limited to the above method for configuring the measurement starting threshold, and the network side device may select the method for configuring the measurement starting threshold according to actual needs. For example, the network side device configures S-measure 1 for a plurality of component carriers in all the component carriers, and configures S-measure 2 for other component carriers.
It should be noted that, when configuring a measurement start threshold for a multi-carrier of a UE, the setting of the measurement start threshold is related to the noise environment of the area where the current serving cell is located, the coverage area, and the RRM (Radio Resource Management) algorithm on the network side. The network side equipment can configure S-measure parameter values for the multi-carrier of the UE according to the self requirement.
When the network side equipment configures independent S-measures for each component carrier, the network side equipment needs to send the S-measure corresponding to each component carrier to the UE, and the S-measure corresponding to each component carrier can be sent to the UE through the same message or can be sent to the UE through different messages.
When the network side equipment configures independent S-measures for each member carrier group, the network side equipment needs to send the S-measures corresponding to each member carrier group to the UE, and the S-measures corresponding to each member carrier group can be sent to the UE through the same message or can be sent to the UE through different messages.
When the network side equipment configures the uniform S-measures for all the component carriers, the network side equipment needs to send the uniformly configured S-measures to the UE.
It should be noted that the network side device may configure an S-measure value of the component carrier in a measurement configuration IE (information element) of an RRC (Radio Resource Control protocol) connection reconfiguration message, and at this time, the network side device needs to send the S-measure to the UE through the RRC connection reconfiguration message. Certainly, in practical application, the network side device may also configure the S-measure value of the component carrier in other messages (e.g., message a), and send the S-measure to the UE through the message a, which is not described in detail in the present invention.
In the case where the measurement start threshold is met, the UE will independently start or stop the relevant measurements in the respective carriers or carrier groups according to the signal quality of each component carrier or carrier group. The UE acquires the signal quality of each member carrier or carrier group, and when the signal quality is lower than a measurement starting threshold, the UE needs to independently start the relevant measurement in the corresponding member carrier or carrier group; when the signal quality is higher than the measurement start threshold, the UE needs to independently turn off the relevant measurement in the corresponding component carrier or carrier group.
Specifically, in the first case, when the network side device configures independent S-measures for each component carrier, in this step, the UE will start or stop the measurement related to the carrier with reference to the signal quality of each component carrier. For example, only when the signal quality of the component carrier 1 is lower than the S-measure of the component carrier 1, only the measurement related to the component carrier 1 needs to be started, and the measurement related to the other component carriers does not need to be started.
In the second case, when the network side device configures independent S-measures for each component carrier group, in this step, the UE will start or stop the measurement related to the component carrier group with reference to the signal quality of each component carrier group. For example, only when the signal quality of the component carrier group 1 is lower than the S-measure of the component carrier group 1, only the relevant measurements in the component carrier group 1 need to be started, and the relevant measurements in the other component carrier groups do not need to be started.
In this case, the determination of the signal quality of each member carrier group includes, but is not limited to:
(1) the carrier with the best signal quality in the current component carrier group, for example, the component carrier group includes a component carrier 1 and a component carrier 2, and when the signal quality of the component carrier 1 is better than that of the component carrier 2, the signal quality of the component carrier 1 is selected as the signal quality of the component carrier group.
Or,
(2) the carrier with the worst signal quality in the current component carrier group, for example, when the signal quality of the component carrier 1 is better than that of the component carrier 2, the signal quality of the component carrier 2 is selected as the signal quality of the component carrier group.
Or,
(3) if a special cell exists in the current member carrier group, selecting a carrier which provides security parameter input and NAS (Non Access Stratum) mobility information corresponding to the UE by the special cell, and taking the signal quality of the carrier as the signal quality of the member carrier group.
Or;
(4) and taking the comprehensive evaluation result of the signal quality of all the component carriers in the current component carrier group as the signal quality of the component carrier group, for example, replacing a number average or a weighted average of the signal quality of all the component carriers, and taking the algebraic average or the weighted average as the signal quality of the component carrier group.
In the third case, when the network side device configures a uniform S-measure for all the component carriers, in this step, if there is no packet between the component carriers, the UE starts or closes measurement related to the carrier with reference to the signal quality of each component carrier; and if the component carriers are grouped, the UE starts or closes the measurement related to the component carrier group by referring to the signal quality of each component carrier group.
It should be noted that, the component carriers of the UE mentioned in the above procedure all refer to currently configured carriers, including configured but not activated carriers (if there is an activation/deactivation procedure). In the activation/deactivation process, the main purpose of introducing activation/deactivation is to flexibly turn on and off the member carriers according to the size of the traffic, so that the power saving effect can be achieved, the member carriers do not need to be configured frequently, and the signaling overhead is saved; in addition, the activation/deactivation process may be faster than the configuration process. For the deactivated carrier, the UE side may still retain the carrier configuration information, and when the channel quality of the carrier becomes good or the traffic volume becomes large, the network side performs an activation operation on the carrier, and then performs data scheduling.
Therefore, by using the method provided by the invention, the user equipment can start or close the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality by configuring the measurement starting threshold for the member carrier and/or the carrier group, thereby solving the problem of how to start the measurement according to the multi-carrier signal quality by the terminal in a plurality of working cells, saving the electric quantity of the UE and providing greater flexibility for the network to manage the multi-carrier.
In order to more clearly illustrate the technical solution provided by the present invention, the following describes in detail the measurement configuration method of the multi-carrier system proposed in the embodiment of the present invention with reference to several specific application scenarios.
In scenario 1, a network side device configures independent S-measures for each component carrier, and in this scenario, a UE will start or close measurement related to each component carrier with reference to the signal quality of the carrier.
In this application scenario, the UE aggregates three component carriers, which are CC (component carrier) 1, CC2, and CC3, respectively. The network side equipment configures corresponding S-measure values for three CCs of the UE respectively, wherein the CC1 corresponds to S-measure-1, the CC2 corresponds to S-measure-2, the CC3 corresponds to S-measure-3, and measurement of a certain number of frequency points is configured for 3 CCs respectively according to RRM algorithm.
When the UE works on three component carriers in an aggregation mode, the UE acquires the signal quality of each component carrier, if the signal quality of the current three component carriers is higher than the respective S-measure value, the relevant measurement of each component carrier does not need to be started, and in the subsequent process, if the channel state of the CC2 begins to be deteriorated, so that the signal quality of the CC2 is lower than the S-measure-2 value, the UE needs to start the relevant measurement on the CC2, namely all the measurements configured on the CC 2. The measurement process is to measure the channel quality of all cells under the measurement object (frequency point) configured by the network and related to the CC2, that is, to measure the RSRP and/or RSRQ of the cells. Thereafter, if the signal quality of CC2 starts to get better again and is again higher than the S-measure-2 value, the UE needs to turn off the relevant measurements on CC2, i.e. all measurements configured on CC 2.
In scenario 2, the network side device configures independent S-measures for each component carrier group, and in this scenario, the UE will start or stop measurement related to each component carrier group with reference to the signal quality (the carrier with the worst signal quality) of the component carrier group.
Under the application scenario, the UE aggregates four member carriers, namely CC1, CC2, CC3 and CC4, the network side configures corresponding S-measure values for the UE aiming at two CC groups (namely { CC1, CC2} and { CC3, CC4}), wherein { CC1, CC2} corresponds to S-measure-1, { CC3, CC4} corresponds to S-measure-2, and measurement of a certain number of frequency points is configured aiming at 4 CCs and 2 CC groups according to RRM algorithm.
When the UE works on four component carriers in an aggregation mode, the UE acquires the signal quality of the four CCs, and if the signal quality of the four CCs of the two current carrier groups is higher than respective S-measure values, measurement related to each component carrier group does not need to be started. Taking the carrier with the worst signal quality in the current component carrier group as the signal quality of the component carrier group as an example, when the signal quality of the CC1 and the signal quality of the CC2 are both greater than S-measure-1, the signal quality of the carrier group { CC1, CC2} is higher than S-measure-1.
And in the subsequent process, if the channel state of the CC3 in the carrier group { CC3, CC4} starts to deteriorate, so that the signal quality of the CC3 is lower than the S-measure-2 value, the signal quality of the carrier group { CC3, CC4} is lower than the S-measure-2 value, and at this time, the UE needs to start all the measurements configured on the carrier group { CC3, CC4}, including the measurement of each of the CC3 and the CC4 and the measurement on the carrier group { CC3, CC4 }. Thereafter, if the signal quality of CC3 starts to get better again (still below CC4) and is again above the S-measure-2 value, the UE needs to turn off the relevant measurements on the carrier set { CC3, CC4}, i.e. turn off the measurements on CC3 and CC4 respectively and the measurements on the carrier set { CC3, CC4 }.
In a scenario 3, the network side device configures a uniform S-measure for all the component carriers, and in the scenario, if there is no group between the component carriers, the UE starts or closes measurement related to the carrier with reference to the signal quality of each component carrier; and if the component carriers are grouped, the UE starts or closes the measurement related to the component carrier group by referring to the signal quality of each component carrier group.
In the application scenario, the UE aggregates three component carriers, namely CC1, CC2, and CC3, and there is no grouping between the three component carriers. The network side equipment configures the S-measure values with uniform UE levels for three CCs of the UE, and configures measurement of a certain number of frequency points for 3 CCs according to RRM algorithm.
When the UE works on the three member carriers in an aggregation mode, the UE acquires the signal quality of each member carrier, and if the signal quality of the current three member carriers is higher than a uniform S-measure value, measurement related to each member carrier does not need to be started. In the subsequent process, if the channel status of the CC2 starts to deteriorate, so that the signal quality of the CC2 is lower than the uniform S-measure value, the UE needs to start the relevant measurements on the CC2, i.e., start all the measurements configured on the CC 2. Thereafter, if the signal quality of CC2 starts to get better again and is again higher than the S-measure value, the UE needs to turn off the relevant measurements on CC2, i.e. all measurements configured on CC 2.
And 4, configuring independent S-measures for each component carrier group by the network side equipment, and starting or closing measurement related to the carrier group by the UE according to the comprehensive signal quality of each component carrier group in the scene.
Under the application scenario, the UE aggregates four member carriers, namely CC1, CC2, CC3 and CC4, the network side configures corresponding S-measure values for the UE aiming at two CC groups (namely { CC1, CC2} and { CC3, CC4}), wherein { CC1, CC2} corresponds to S-measure-1, { CC3, CC4} corresponds to S-measure-2, and measurement of a certain number of frequency points is configured aiming at 4 CCs and 2 CC groups according to RRM algorithm.
When the UE is aggregated to operate on four component carriers, the UE acquires signal qualities of four CCs, performs weighted average on the signal qualities of two component carriers in each carrier group, and takes the weighted average as the signal quality of the carrier group. If the signal quality of the weighted average of the current two carrier groups is higher than the respective S-measure value, then there is no need to initiate measurements related to the respective member carrier groups.
And in the subsequent process, if the channel conditions of the carrier group { CC3, CC4} start to deteriorate, so that the integrated signal quality of CC3 and CC4 is lower than the S-measure-2 value, the signal quality of the carrier group { CC3, CC4} is lower than the S-measure-2, and at this time, the UE needs to start all the measurements configured on the carrier group { CC3, CC4}, including the respective measurements of CC3 and CC4 and the measurements on the carrier group { CC3, CC4 }. Thereafter, if the signal quality of CC3 and CC4 starts to get better again and the combined signal quality of both is higher than the S-measure-2 value, the UE needs to turn off the measurements on CC3 and CC4, respectively, and on the set of carriers { CC3, CC4 }.
In scenario 5, the network side device configures independent S-measures (including configuring an inactive carrier) for each component carrier, and in this scenario, the UE will start or close measurement related to each component carrier with reference to the signal quality of the component carrier.
In this application scenario, the UE aggregates three component carriers, which are CC1, CC2, and CC3, respectively. The network side equipment configures corresponding S-measure values for three CCs of the UE respectively, wherein the CC1 corresponds to S-measure-1, the CC2 corresponds to S-measure-2, the CC3 corresponds to S-measure-3, and measurement of a certain number of frequency points is configured for 3 CCs respectively according to RRM algorithm.
Due to the reduction of the current transmission data volume, the CC2 is deactivated, and the UE side still retains the configuration information (including the measurement configuration information) of the CC 2. At this time, the UE also needs to acquire the signal quality of the CC2, that is, the UE will acquire the signal quality of each component carrier, and if the signal quality of the current three component carriers is higher than the respective S-measure values, it is not necessary to start the measurement related to each component carrier. And in the subsequent process, if the channel state of the CC2 starts to deteriorate, so that the signal quality of the CC2 is lower than the S-measure-2 value, the UE needs to start the relevant measurements on the CC2, i.e. start all the measurements configured on the CC 2. Thereafter, if the signal quality of CC2 starts to get better again and is again higher than the S-measure-2 value, the UE needs to turn off the relevant measurements on CC2, i.e. all measurements configured on CC 2.
In scenario 6, the network side device configures a uniform S-measure for all component carriers without grouping between the component carriers, and in this scenario, the UE starts or closes measurement related to each component carrier (including configuring an inactive carrier) with reference to the signal quality of the component carrier.
In the application scenario, the UE aggregates three component carriers, namely CC1, CC2, and CC3, and there is no grouping between the three component carriers. The network side equipment configures the S-measure values with uniform UE levels for three CCs of the UE, and configures measurement of a certain number of frequency points for 3 CCs according to RRM algorithm.
Due to the reduction of the current transmission data volume, the CC2 is deactivated, and the UE side still retains the configuration information (including the measurement configuration information) of the CC 2. At this time, the UE also needs to acquire the signal quality of the CC2, that is, the UE will acquire the signal quality of each component carrier, and if the signal quality of the current three component carriers is higher than the uniform S-measure value, it is not necessary to start the measurement related to each component carrier. In the subsequent process, if the channel status of the CC2 starts to deteriorate, so that the signal quality of the CC2 is lower than the uniform S-measure value, the UE needs to start the relevant measurements on the CC2, i.e., start all the measurements configured on the CC 2. Thereafter, if the signal quality of CC2 starts to get better again and is again higher than the S-measure value, the UE needs to turn off the relevant measurements on CC2, i.e. all measurements configured on CC 2.
As shown in fig. 6, a user equipment UE provided in an embodiment of the present invention includes:
an obtaining module 61, configured to obtain a measurement start threshold of a component carrier and/or a carrier group; and acquiring the signal quality of the member carrier and/or the carrier group. The component carriers are configured carriers, and include configured and unactivated carriers and configured and activated carriers. The signal quality of the component carriers and/or carrier groups comprises RSRP and/or RSRQ.
The obtaining module 61 is specifically configured to obtain a measurement starting threshold of each member carrier that is independent from each other; or, obtaining the independent measurement starting threshold of each carrier group; or acquiring a uniform measurement starting threshold of all the component carriers.
A processing module 62, configured to start or close the measurement of the component carrier and/or the carrier group according to the measurement start threshold and the signal quality obtained by the obtaining module 61.
When each component carrier corresponds to a respective independent measurement start threshold, the processing module 62 is specifically configured to start or close measurement of each component carrier according to the signal quality of the component carrier and the measurement start threshold of the component carrier.
When each carrier group corresponds to a respective independent measurement start threshold, the processing module 62 is specifically configured to start or stop measurement of the carrier group according to the signal quality of each carrier group and the measurement start threshold of the carrier group.
When all the component carriers correspond to the uniform measurement start threshold, the processing module 62 is specifically configured to, if there is no grouping between the component carriers, start or close the measurement of each component carrier according to the signal quality of the component carrier and the uniform measurement start threshold; and if the member carriers are grouped, starting or closing the measurement of each carrier group according to the signal quality of the carrier group and the unified measurement starting threshold.
Further, the processing module 62 is further configured to obtain a component carrier with the best signal quality in a carrier group, and start or close measurement of the carrier group according to the signal quality of the component carrier with the best signal quality and a measurement start threshold of the carrier group; or,
acquiring a member carrier with the worst signal quality in a carrier group, and starting or closing the measurement of the carrier group according to the signal quality of the member carrier with the worst signal quality and the measurement starting threshold of the carrier group; or,
acquiring a special cell in a carrier group, selecting a member carrier of which the special cell corresponds to user equipment and provides security parameter input and non-access stratum (NAS) mobility information, and starting or closing measurement of the carrier group according to the signal quality of the member carrier and a measurement starting threshold of the carrier group; or,
and acquiring a comprehensive evaluation result of the signal quality of all the member carriers in the carrier group, and starting or closing the measurement of the carrier group according to the comprehensive evaluation result and the measurement starting threshold of the carrier group.
The modules of the device can be integrated into a whole or can be separately deployed. The modules can be combined into one module, and can also be further split into a plurality of sub-modules.
Therefore, by using the equipment provided by the invention, the user equipment can start or close the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality by configuring the measurement starting threshold for the member carrier and/or the carrier group, thereby solving the problem of how to start the measurement according to the multi-carrier signal quality under a plurality of working cells by the terminal, saving the electric quantity of the user equipment and providing greater flexibility for the network to manage the multi-carrier.
As shown in fig. 7, a network side device provided for an embodiment of the present invention includes:
a configuring module 71, configured to configure a measurement starting threshold of a component carrier and/or a carrier group for the ue. The component carriers are configured carriers, and include configured and unactivated carriers and configured and activated carriers.
The configuration module 71 is specifically configured to configure an independent measurement starting threshold for each component carrier of the ue; or configuring an independent measurement starting threshold for each carrier group of the user equipment; or, configuring a uniform measurement starting threshold for all the component carriers of the user equipment.
A sending module 72, configured to send the measurement start threshold of the component carrier and/or the carrier group configured by the configuration module 71 to the user equipment, and the user equipment starts or closes the measurement of the component carrier and/or the carrier group according to the measurement start threshold and the signal quality of the component carrier and/or the carrier group.
The sending module 72 is specifically configured to send the measurement starting threshold of the component carrier and/or the carrier group to the user equipment through an RRC connection reconfiguration message.
Therefore, by using the equipment provided by the invention, the user equipment can start or close the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality by configuring the measurement starting threshold for the member carrier and/or the carrier group, thereby solving the problem of how to start the measurement according to the multi-carrier signal quality under a plurality of working cells by the terminal, saving the electric quantity of the user equipment and providing greater flexibility for the network to manage the multi-carrier.
The embodiment of the present invention further provides a measurement configuration system of a multi-carrier system, including:
the network side equipment is used for configuring a measurement starting threshold of the member carrier and/or the carrier group for the user equipment; sending the measurement starting threshold of the member carrier and/or the carrier group to the user equipment;
the user equipment is used for acquiring the measurement starting threshold of the member carrier and/or the carrier group and the signal quality of the member carrier and/or the carrier group; and starting or closing the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions 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 the methods according to the embodiments of the present invention.
Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred embodiment and that the blocks or flow diagrams in the drawings are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (21)
1. A measurement configuration method of a multi-carrier system, comprising:
the method comprises the steps that user equipment obtains a measurement starting threshold of a member carrier and/or a carrier group; and acquiring the signal quality of the member carrier and/or the carrier group;
and the user equipment starts or closes the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality.
2. The method of claim 1, wherein the obtaining, by the ue, a measurement start threshold for the component carrier and/or the carrier group comprises:
the user equipment acquires the independent measurement starting threshold of each member carrier; or,
the user equipment acquires the independent measurement starting threshold of each carrier group; or,
the user equipment acquires the uniform measurement starting threshold of all the member carriers.
3. The method of claim 2, wherein when each component carrier corresponds to a respective independent measurement initiation threshold,
the starting or closing of the measurement of the component carrier and/or the carrier group by the user equipment according to the measurement starting threshold and the signal quality comprises the following steps:
and the user equipment starts or closes the measurement of the member carrier according to the signal quality of each member carrier and the measurement starting threshold of the member carrier.
4. The method of claim 2, wherein when each carrier group corresponds to a respective independent measurement initiation threshold,
the starting or closing of the measurement of the component carrier and/or the carrier group by the user equipment according to the measurement starting threshold and the signal quality comprises the following steps:
and the user equipment starts or closes the measurement of the carrier group according to the signal quality of each carrier group and the measurement starting threshold of the carrier group.
5. The method of claim 4, wherein the UE starting or stopping the measurement of each carrier group according to the signal quality of the carrier group and the measurement starting threshold of the carrier group comprises:
the user equipment acquires the member carrier with the best signal quality in a carrier group, and starts or closes the measurement of the carrier group according to the signal quality of the member carrier with the best signal quality and the measurement starting threshold of the carrier group; or,
the user equipment acquires the member carrier with the worst signal quality in the carrier group, and starts or closes the measurement of the carrier group according to the signal quality of the member carrier with the worst signal quality and the measurement starting threshold of the carrier group; or,
the user equipment acquires a special cell in a carrier group, selects a member carrier corresponding to the special cell and providing security parameter input and non-access stratum (NAS) mobility information for the user equipment, and starts or closes measurement of the carrier group according to the signal quality of the member carrier and a measurement starting threshold of the carrier group; or,
the user equipment obtains the comprehensive evaluation result of the signal quality of all the member carriers in the carrier group, and starts or closes the measurement of the carrier group according to the comprehensive evaluation result and the measurement starting threshold of the carrier group.
6. The method of claim 2, wherein when all component carriers correspond to a uniform measurement initiation threshold,
the starting or closing of the measurement of the component carrier and/or the carrier group by the user equipment according to the measurement starting threshold and the signal quality comprises the following steps:
if no grouping exists among the member carriers, the user equipment starts or closes the measurement of the member carriers according to the signal quality of each member carrier and the unified measurement starting threshold;
and if the component carriers are grouped, the user equipment starts or closes the measurement of the carrier group according to the signal quality of each carrier group and the unified measurement starting threshold.
7. The method of any one of claims 1 to 6,
the component carriers are configured carriers, and comprise configured and unactivated carriers and configured and activated carriers;
the signal quality of the component carriers and/or carrier groups comprises reference symbol received power, RSRP, and/or reference symbol received quality, RSRQ.
8. A User Equipment (UE), comprising:
an obtaining module, configured to obtain a measurement start threshold of a component carrier and/or a carrier group; and acquiring the signal quality of the member carrier and/or the carrier group;
and the processing module is used for starting or closing the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality acquired by the acquisition module.
9. The UE of claim 8,
the obtaining module is specifically configured to obtain a measurement starting threshold that each component carrier is independent of; or,
obtaining the independent measurement starting threshold of each carrier group; or,
and acquiring a uniform measurement starting threshold of all the member carriers.
10. The UE of claim 9, wherein when each component carrier corresponds to a respective independent measurement initiation threshold,
the processing module is specifically configured to start or stop the measurement of the component carrier according to the signal quality of each component carrier and the measurement start threshold of the component carrier.
11. The UE of claim 9, wherein when each carrier group corresponds to a respective independent measurement initiation threshold,
the processing module is specifically configured to start or stop measurement of each carrier group according to the signal quality of the carrier group and a measurement start threshold of the carrier group.
12. The UE of claim 11,
the processing module is further configured to acquire a component carrier with the best signal quality in a carrier group, and start or close measurement of the carrier group according to the signal quality of the component carrier with the best signal quality and a measurement start threshold of the carrier group; or,
acquiring a member carrier with the worst signal quality in a carrier group, and starting or closing the measurement of the carrier group according to the signal quality of the member carrier with the worst signal quality and the measurement starting threshold of the carrier group; or,
acquiring a special cell in a carrier group, selecting a member carrier of which the special cell corresponds to user equipment and provides security parameter input and non-access stratum (NAS) mobility information, and starting or closing measurement of the carrier group according to the signal quality of the member carrier and a measurement starting threshold of the carrier group; or,
and acquiring a comprehensive evaluation result of the signal quality of all the member carriers in the carrier group, and starting or closing the measurement of the carrier group according to the comprehensive evaluation result and the measurement starting threshold of the carrier group.
13. The UE of claim 9, wherein when all component carriers correspond to a uniform measurement initiation threshold,
the processing module is specifically configured to, if there is no grouping between the component carriers, start or close measurement of each component carrier according to the signal quality of the component carrier and the unified measurement start threshold;
and if the member carriers are grouped, starting or closing the measurement of each carrier group according to the signal quality of the carrier group and the unified measurement starting threshold.
14. The UE of any of claims 8-13,
the component carriers are configured carriers, and comprise configured and unactivated carriers and configured and activated carriers;
the signal quality of the component carriers and/or carrier groups comprises RSRP and/or RSRQ.
15. A measurement configuration method of a multi-carrier system, comprising:
the network side equipment configures a measurement starting threshold of a member carrier and/or a carrier group for the user equipment;
and the network side equipment sends the measurement starting threshold of the member carrier and/or the carrier group to the user equipment, and the user equipment starts or closes the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality of the member carrier and/or the carrier group.
16. The method of claim 15, wherein the configuring, by the network side device, the measurement starting threshold of the component carrier and/or the carrier group for the ue comprises:
the network side equipment configures independent measurement starting threshold for each member carrier of the user equipment; or,
the network side equipment configures independent measurement starting threshold for each carrier group of the user equipment; or,
and the network side equipment configures a uniform measurement starting threshold for all member carriers of the user equipment.
17. The method according to claim 15 or 16, wherein the network side device sending the measurement starting threshold of the component carrier and/or the carrier group to the user equipment comprises:
and the network side equipment sends the measurement starting threshold of the member carrier and/or the carrier group to the user equipment through a radio resource control protocol (RRC) connection reconfiguration message.
18. A network-side device, comprising:
a configuration module, configured to configure a measurement start threshold of a member carrier and/or a carrier group for a user equipment;
a sending module, configured to send the measurement starting threshold of the component carrier and/or the carrier group configured by the configuration module to the user equipment, and the user equipment starts or closes measurement of the component carrier and/or the carrier group according to the measurement starting threshold and the signal quality of the component carrier and/or the carrier group.
19. The network-side device of claim 18,
the configuration module is specifically configured to configure an independent measurement starting threshold for each component carrier of the ue; or,
configuring independent measurement starting thresholds for each carrier group of the user equipment; or,
and configuring a uniform measurement starting threshold for all member carriers of the user equipment.
20. The network-side device of claim 18 or 19,
the sending module is specifically configured to send the measurement starting threshold of the component carrier and/or the carrier group to the user equipment through an RRC connection reconfiguration message.
21. A measurement configuration system for a multi-carrier system, comprising:
the network side equipment is used for configuring a measurement starting threshold of the member carrier and/or the carrier group for the user equipment; sending the measurement starting threshold of the member carrier and/or the carrier group to the user equipment;
the user equipment is used for acquiring the measurement starting threshold of the member carrier and/or the carrier group and the signal quality of the member carrier and/or the carrier group; and starting or closing the measurement of the member carrier and/or the carrier group according to the measurement starting threshold and the signal quality.
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