CN110730497A

CN110730497A - Method for pilot frequency measurement gap synchronization control and eNodeB base station

Info

Publication number: CN110730497A
Application number: CN201810779693.7A
Authority: CN
Inventors: 曾朝晖; 李晓华
Original assignee: Putian Information Technology Co Ltd
Current assignee: Putian Information Technology Co Ltd
Priority date: 2018-07-16
Filing date: 2018-07-16
Publication date: 2020-01-24
Anticipated expiration: 2038-07-16
Also published as: CN110730497B

Abstract

The embodiment of the invention provides a method for synchronously controlling pilot frequency measurement gaps and an eNodeB base station, wherein the method comprises the following steps: an eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking; judging whether a group call answered by group call UE has configured a group pilot frequency measurement gap; if judging that the group calling which is answered by the group calling UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group calling, and simultaneously configuring single-calling pilot frequency measurement gaps for all the group calling UE in the group calling; the configuration value of the single-call pilot frequency measurement gap is the same as that of the group pilot frequency measurement gap. The embodiment of the invention can solve the problem of reasonable coexistence of the group pilot frequency measurement interval and the single call pilot frequency measurement interval and prevent the group call drop and the single call drop.

Description

Method for pilot frequency measurement gap synchronization control and eNodeB base station

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a method for synchronously controlling pilot frequency measurement gaps and an eNodeB base station.

Background

In order to suppress interference, enhance coverage and improve system capacity, the TD-LTE cluster system deploys a network in a pilot frequency networking mode in some application scenes. For example, the underground interference of the LTE subway communication system is small, and 20M full-bandwidth networking is adopted; and the ground interference is large, and in order to avoid the interference, networking is performed by adopting bandwidths of 10M or 15M with different central frequency points.

In the TD-LTE wireless communication system, the essence of eNodeB opening the inter-frequency measurement is to configure the inter-frequency measurement gap, and the essence of closing the inter-frequency measurement is to release the inter-frequency measurement gap.

And the UE jumps from the original working frequency point to the pilot frequency point during the pilot frequency measurement interval to execute pilot frequency measurement. During the interval of pilot frequency measurement, the eNodeB does not perform uplink and downlink scheduling of signaling and services at the original working frequency point, and the UE does not transmit and receive the signaling and services at the original working frequency point until the interval of pilot frequency measurement is finished, and the UE jumps back to the original working frequency point again to recover normal data transmission and reception. By the mechanism, the UE is ensured not to lose service data when performing pilot frequency measurement.

When the TD-LTE trunking system adopts the pilot frequency networking, only a group call service exists in the trunking group call UE in an RRC (Radio Resource Control) idle state, so that only group pilot frequency measurement for the group call service exists, and only a group pilot frequency measurement gap correspondingly exists; the cluster group calling UE in the RRC connection state has both single-calling service and group calling service, both single-calling pilot frequency measurement aiming at the single-calling service and group pilot frequency measurement aiming at the group calling service, and both single-calling pilot frequency measurement gap and group pilot frequency measurement gap correspondingly. Because the single-call service and the group call service are mutually independent services, the eNodeB only avoids the single-call pilot frequency measurement gap when scheduling the single-call service and does not consider avoiding the group pilot frequency measurement gap of the group call service. Similarly, when scheduling the group call service, the eNodeB only avoids the group pilot frequency measurement gap of the group call service, and does not consider avoiding the single-call pilot frequency measurement gap of the single-call service. This will result in a single call drop during the group inter-frequency measurement gap and a group call drop during the single call inter-frequency measurement gap.

The existing solution is to set the configuration value of the single-call pilot frequency measurement gap to the configuration value of the group pilot frequency measurement gap, so that the configuration of the single-call pilot frequency measurement gap is the same as that of the group-call pilot frequency measurement gap, thereby avoiding a group-call drop and a single-call drop. However, the scheme only solves the problem of configuration values of two different frequency measurement gaps, the two different frequency measurement gaps are still independent and not related to each other on the configured triggering condition and the configuration opportunity, and the call drop still occurs in the group call service and the single call service.

In the existing solution, the configuration value of the single-paging pilot frequency measurement gap is set to the configuration value of the group pilot frequency measurement gap, which is to automatically adjust the single-paging pilot frequency measurement gap to the group pilot frequency measurement gap by the UE once the group paging being received by the UE is configured with the group pilot frequency measurement by the eNodeB on the premise that the eNodeB has configured the single-paging pilot frequency measurement for the UE. However, the eNodeB cannot know exactly when the UE performs such operation, which results in that the time of the adjustment operations on the eNodeB side and the UE side are not synchronized, and this violates the processing principle of the 3GPP protocol for single call inter-frequency measurement, i.e. the eNodeB has the decision right to schedule, so the inter-frequency measurement gap can only be determined by the eNodeB and configured to the UE through RRC signaling, but cannot be determined by the UE itself.

In addition, the above configuration method has no conditional trigger mechanism for the start of the group pilot frequency measurement, which is equal to unconditional start. If the group pilot frequency measurement is always in an on state, the downlink rate of the group call will be greatly lost, for example, under the condition of a pilot frequency measurement GAP with a period of 40ms and uplink and downlink subframe configuration 1, the loss of downlink flow is about 30%, the group call service cannot be met, especially the QoS requirement of a visual group call is met, and video will be blocked.

Furthermore, when the eNodeB has not configured the single-call pilot frequency measurement for the UE, once the group pilot frequency measurement is configured by the eNodeB for the group call answered by the UE, there is no mechanism to solve when the eNodeB configures the single-call pilot frequency measurement for the UE, and the scheduling of the uplink and downlink data of the single call by the eNodeB may fall into the group pilot frequency measurement gap, so that the UE loses the single-call service data, and a single-call drop occurs.

Disclosure of Invention

In order to solve the problems that the group pilot frequency measurement and the single-call pilot frequency measurement in the prior art cannot reasonably coexist and single-call drop or group-call drop is easy to occur, the embodiment of the invention provides a method for synchronously controlling pilot frequency measurement gaps and an eNodeB base station.

In a first aspect, an embodiment of the present invention provides a method for inter-frequency measurement gap synchronization control, where the method includes: an eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking; judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not; if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

In a second aspect, an embodiment of the present invention provides an eNodeB base station for synchronization control of inter-frequency measurement gaps, where the eNodeB base station includes: the inter-frequency measurement gap configuration request receiving module is specifically configured to: receiving a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC (radio resource control) connection state in a cluster system pilot frequency network; the judgment module is specifically used for: judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not; the pilot frequency measurement gap configuration module is specifically configured to: if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

In a third aspect, an embodiment of the present invention provides an electronic device, including a memory and a processor, where the processor and the memory complete communication with each other through a bus; the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform a method comprising: an eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking; judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not; if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following method: an eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking; judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not; if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

The embodiment of the invention uniformly configures the group pilot frequency measurement gaps and the single-call pilot frequency measurement gaps after receiving the group pilot frequency measurement gap configuration request or the single-call pilot frequency measurement gap configuration request sent by the group call UE, and enables the configuration values of the group pilot frequency measurement gaps and the single-call pilot frequency measurement gaps to be the same, thereby solving the problem of reasonable coexistence of the group pilot frequency measurement gaps and the single-call pilot frequency measurement gaps and preventing group call drop and single call drop.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flowchart of a method for inter-frequency measurement gap synchronization control according to an embodiment of the present invention;

fig. 2 is a schematic end-to-end flow chart of a method for synchronization control of inter-frequency measurement gaps according to another embodiment of the present invention;

fig. 3 is a schematic end-to-end flow chart of a method for inter-frequency measurement gap synchronization control according to still another embodiment of the present invention;

fig. 4 is a schematic structural diagram of an eNodeB base station for synchronization control of inter-frequency measurement gaps according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, but 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.

Fig. 1 is a flowchart of a method for inter-frequency measurement gap synchronization control according to an embodiment of the present invention. As shown in fig. 1, the method includes:

101, an eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking;

the group calling UE of the cluster system in the RRC connection state has a single-calling service and a group calling service at the same time, has a single-calling pilot frequency measurement aiming at the single-calling service and a group pilot frequency measurement aiming at the group calling service at the same time, and correspondingly has a single-calling pilot frequency measurement gap and a group pilot frequency measurement gap at the same time. The group calling UE refers to a UE with a group calling service.

The eNodeB judges whether a group pilot frequency measurement gap or a single-call pilot frequency measurement gap needs to be configured for the corresponding group calling UE, and judges through a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by the group calling UE.

If the eNodeB receives a group pilot frequency measurement gap configuration request sent by the group calling UE, the eNodeB indicates that the group calling UE has the requirement of configuring the group pilot frequency measurement gap; if the eNodeB receives a single-call pilot frequency measurement gap configuration request sent by the group call UE, the eNodeB indicates that the group call UE has the requirement of configuring the single-call pilot frequency measurement gap.

Step 102, judging whether a group pilot frequency measurement gap is configured in a group call answered by the group call UE;

the eNodeB judges whether the group call answered by the group call UE has configured a group pilot frequency measurement gap; for example, if the group call UE has sent a group pilot frequency measurement gap configuration request and the eNodeB has configured a group pilot frequency measurement gap for the group call that the group call UE answers, it learns that the group pilot frequency measurement gap is configured for the group call that the group call UE answers; otherwise, it is known that the group call answered by the group call UE is not configured with the group pilot frequency measurement gap.

103, if judging that the group call answered by the group call UE is not configured with a group pilot frequency measurement gap, uniformly configuring a group pilot frequency measurement gap for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

If the eNodeB judges that the group call received by the group call UE is not configured with the group pilot frequency measurement gap, the eNodeB uniformly configures the group pilot frequency measurement gap for the group call and simultaneously configures single call pilot frequency measurement gaps for all the group call UE in the group call; when configuring single-call pilot frequency measurement gaps for all group call UEs in the group call, the configuration value of the single-call pilot frequency measurement gaps is the same as the configuration value of the group pilot frequency measurement gaps.

Even if one or more UEs in the group call are configured with the single-call pilot frequency measurement gap in advance, the single-call pilot frequency measurement gaps of all the group call UEs in the group call are reconfigured, and the configuration value of the single-call pilot frequency measurement gap is the same as that of the group pilot frequency measurement gap.

If the eNodeB judges that the group calling UE answers configures the group pilot frequency measurement gap, the eNodeB may ignore the group pilot frequency measurement gap.

Further, based on the above embodiment, the method further includes:

if the eNodeB triggers the configuration of the pilot frequency measurement gap by the received group pilot frequency measurement gap configuration request, if the eNodeB receives the group pilot frequency measurement gap release requests sent by all group calling UEs in the group calling, the eNodeB releases the group pilot frequency measurement gap and the single-calling pilot frequency measurement gap;

the eNodeB triggers configuration of pilot frequency measurement gaps by a received group pilot frequency measurement gap configuration request, which means that after receiving a group pilot frequency measurement gap configuration request sent by group call UEs in an RRC connected state in a cluster system pilot frequency networking, the eNodeB determines that the group call UEs answer is not configured with group pilot frequency measurement gaps, and then configures group pilot frequency measurement gaps for the group call UEs uniformly, and configures single-call pilot frequency measurement gaps for all the group call UEs in the group call simultaneously.

And releasing the group pilot frequency measurement gaps and the single-call pilot frequency measurement gaps only when the eNodeB receives the group pilot frequency measurement gap release requests reported by all group call UEs in one group call and the single-call services of all group call UEs do not need the single-call pilot frequency measurement.

If the eNodeB receives the group pilot frequency measurement gap release request sent by all the group call UEs in the group call, it indicates that all the group call UEs in the group call no longer need group pilot frequency measurement (which is equivalent to no longer needing to configure group pilot frequency measurement gaps); since the eNodeB triggers the configuration of the inter-frequency measurement gap by the received group inter-frequency measurement gap configuration request, it means that the group call UE does not need the single-call inter-frequency measurement (which is equivalent to not configuring the single-call inter-frequency measurement gap). Therefore, if the eNodeB receives the group pilot frequency measurement gap release request sent by all the group call UEs in the group call, indicating that all the group call UEs in the group call no longer need the group pilot frequency measurement and the single call pilot frequency measurement, the eNodeB releases the group pilot frequency measurement gap and the single call pilot frequency measurement gap.

If the eNodeB triggers the configuration of the pilot frequency measurement gap by the received single-call pilot frequency measurement gap configuration request, the eNodeB releases the group pilot frequency measurement gap and the single-call pilot frequency measurement gap if the eNodeB receives the group pilot frequency measurement gap release requests sent by all the group call UEs in the group call and receives the single-call pilot frequency measurement gap release requests sent by the group call UEs sending the single-call pilot frequency measurement gap configuration requests.

The eNodeB triggers configuration of pilot frequency measurement gaps by a received single-call pilot frequency measurement gap configuration request, which means that after receiving a single-call pilot frequency measurement gap configuration request sent by group call UEs in an RRC connection state in a cluster system pilot frequency networking, after judging that the group call UE receives the request, the eNodeB configures group pilot frequency measurement gaps for the group call uniformly and configures single-call pilot frequency measurement gaps for all the group call UEs in the group call if the group call UE does not configure group pilot frequency measurement gaps.

If the eNodeB receives a group pilot frequency measurement gap release request sent by all group calling UEs in the group calling, the eNodeB indicates that all group calling UEs in the group calling do not need group pilot frequency measurement any more; since the eNodeB triggers the configuration of the inter-frequency measurement gap by the received single-call inter-frequency measurement gap configuration request, it indicates that there is a group call UE requiring single-call inter-frequency measurement in a group call (i.e., the group call UE sending the single-call inter-frequency measurement gap configuration request), and only when the eNodeB receives a group inter-frequency measurement gap release request sent by all group call UEs in the group call and receives a single-call inter-frequency measurement gap release request sent by the group call UE sending the single-call inter-frequency measurement gap configuration request, the eNodeB releases the group inter-frequency measurement gap and the single-call inter-frequency measurement gap.

The problem of rationalization and coexistence of the group pilot frequency measurement gap and the single-call pilot frequency measurement gap of the group call UE in the RRC connected state needs to be solved from the following two aspects to avoid the group call drop or the single-call drop of the group call UE during pilot frequency measurement.

(1) The group pilot frequency measurement gap and the single-call pilot frequency measurement gap adopt the same configuration value.

(2) The opening or closing of the group pilot measurement gap and the single-call pilot measurement gap must be correlated.

The group pilot frequency measurement gap and the single-call pilot frequency measurement gap are required to be mutually correlated to open or close, namely, when an eNodeB is required to configure the group pilot frequency measurement gap for group call UE in a wireless environment, single-call pilot frequency measurement is also simultaneously opened, namely, the single-call pilot frequency measurement gap is also configured, and the value of the single-call pilot frequency measurement gap is equal to that of the group pilot frequency measurement gap; on the contrary, when the eNodeB is required to start the single-call pilot frequency measurement of the group call UE in the wireless environment, i.e. the eNodeB is triggered to configure the single-call pilot frequency measurement gap, the eNodeB is also simultaneously started to perform the group pilot frequency measurement, i.e. the eNodeB is triggered to configure the group pilot frequency measurement gap, and the value of the single-call pilot frequency measurement gap is ensured to be equal to the value of the group pilot frequency measurement gap. The opening of the two types of different-frequency measurement gaps are related to each other on the triggering condition and the opportunity to achieve synchronization, and similarly, the closing of the two types of different-frequency measurement gaps also needs to be related to achieve synchronization.

On the basis of the above embodiments, the embodiments of the present invention respectively set the closing conditions of the pilot frequency measurement gaps triggered by the group pilot frequency measurement gap configuration request trigger and the single-call pilot frequency measurement gap configuration request trigger, thereby ensuring the synchronous opening and closing of the group pilot frequency measurement gaps and the single-call pilot frequency measurement gaps, further improving the stability of the reasonable coexistence of the group pilot frequency measurement gaps and the single-call pilot frequency measurement gaps, and avoiding the group call drop and the single-call drop.

Further, based on the above embodiment, the group pilot frequency measurement gap configuration request is obtained by an eNodeB receiving a group a2 event measurement report sent by the group call UE; the single-call pilot frequency measurement gap configuration request is obtained by an eNodeB receiving a single-call A2 event measurement report sent by the group calling UE; the group pilot frequency measurement gap release request is obtained by an eNodeB receiving a group A1 event measurement report sent by the group calling UE; the single-call pilot frequency measurement gap release request is obtained by an eNodeB receiving a single-call A1 event measurement report sent by the group calling UE; the group a2 event measurement report, the single-call a2 event measurement report, the group a1 event measurement report, and the single-call a1 event measurement report sent by the group call UE include a group call ID.

The group pilot frequency measurement gap configuration request can be realized by sending a group A2 event measurement report, that is, the group calling UE sends a group pilot frequency measurement gap configuration request to an eNodeB by sending a group A2 event measurement report; the group calling UE sends a group A2 event measurement report, which may also be referred to as the occurrence of a group A2 event, to the eNodeB.

The single-call pilot frequency measurement gap configuration request can be realized by sending a single-call A2 event measurement report, that is, the group call UE sends a single-call pilot frequency measurement gap configuration request to an eNodeB by sending a single-call A2 event measurement report; the group calling UE sends a single call A2 event measurement report, which may also be referred to as the occurrence of a single call A2 event, to the eNodeB.

The group inter-frequency measurement gap release request is realized by sending a group A1 event measurement report; that is, the group calling UE sends a group pilot frequency measurement gap release request to an eNodeB by sending a group A1 event measurement report; the group calling UE sends a group A1 event measurement report, which may also be referred to as the occurrence of a group A1 event, to the eNodeB.

The single-call pilot frequency measurement gap release request is realized by sending a single-call A1 event measurement report, namely the group call UE sends the single-call pilot frequency measurement gap release request to an eNodeB by sending a single-call A1 event measurement report; the group calling UE sends a single call A1 event measurement report, which may also be referred to as the occurrence of a single call A1 event, to the eNodeB.

The group a2 event, the group a1 event, the single call a2 event, and the single call a1 event may all have particular thresholds.

When the radio environment meets the respectively set conditions, the group calling UE sends the group A2 event measurement report, the single calling A2 event measurement report, the group A1 event measurement report or the single calling A1 event measurement report to the eNodeB to inform the eNodeB of the measurement event met by the radio environment of the group calling UE.

The group A2 event measurement report, the group A1 event measurement report must include group Call ID (GID); for group calling UEs, the single call a2 event measurement report and the single call a1 event measurement report are also intended to include the group call ID.

For single-call UE (UE only having single-call service, without coexistence problem of single-call pilot frequency measurement and group pilot frequency measurement), it does not include group call ID.

Thus, for group call UEs, the group a2 event measurement report, the single call a2 event measurement report, the group a1 event measurement report, and the single call a1 event measurement report include a group call ID.

On the basis of the above embodiments, the embodiment of the present invention improves the convenience of the inter-frequency measurement gap synchronization control by sending the inter-frequency measurement gap configuration request and the inter-frequency measurement gap release request in the form of a measurement report.

Further, based on the above embodiment, before the eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by a group call UE in an RRC connected state in a cluster system pilot frequency networking, the method further includes:

configuring a group A2 event measurement control parameter for all UEs in a group call, so that the group call UEs send a group A2 event measurement report when the wireless environment meets the requirement of the group A2 event measurement control parameter; configuring single call A2 event measurement control parameters for all UEs in a group call, so that the group call UEs send single call A2 event measurement reports when the wireless environment meets the requirements of the single call A2 event measurement control parameters; configuring a group A1 event measurement control parameter for all UEs in a group call, so that the group call UEs can send a group A1 event measurement report when the group pilot frequency measurement is not needed; configuring single call A1 event measurement control parameters for all the UEs in the group call, so that the group call UEs can send the single call A1 event measurement report when the single call pilot frequency measurement is not needed.

And the eNodeB adopts the air-interface GroupCallConfig message to configure the group event measurement control parameters. In the GroupCallConfig message, a groupmaasconfig IE (group measurement configuration information element) is newly added, which is used for the eNodeB to configure the group event measurement control parameters for all the UEs in the RRC idle state and the connected state in the group call.

For the group calling UE in the RRC connection state, the eNodeB side and the UE side have a group event measurement context in addition to the original single calling event measurement context. The two types of contexts are mutually independent, namely, the measurement object, the measurement report configuration, the measurement ID, the measurement parameter, the start measurement threshold and the like of the two types of contexts are mutually independent and cannot be used together.

Wherein the group event measurement context includes the set group event measurement control parameters. The group event measurement control parameters include group A2 event measurement control parameters and group A1 event measurement control parameters. The group a2 event measurement control parameters include wireless environment parameters for sending a2 event measurement report by the preset group calling UEs. The eNodeB configures a group A2 event measurement control parameter for all the UEs in the group call, so that the group call UEs send a group A2 event measurement report when the wireless environment meets the requirement of the group A2 event measurement control parameter; the eNodeB configures group A1 event measurement control parameters for all the UEs in the group call, so that the group call UEs send the group A1 event measurement report when the wireless environment meets the requirements of the group A1 event measurement control parameters.

The eNodeB configures single-call event measurement control parameters including single-call A2 event measurement control parameters and single-call A1 event measurement control parameters for all the UEs in the group call through the RRC connection reconfiguration message. The eNodeB configures single-call A2 event measurement control parameters for all the UEs in a group call, so that the group call UEs send single-call A2 event measurement reports when the wireless environment meets the requirements of the single-call A2 event measurement control parameters; the eNodeB configures single-call A1 event measurement control parameters for all the UEs in the group call, so that the group call UEs send the single-call A1 event measurement report when the wireless environment meets the requirements of the single-call A1 event measurement control parameters.

The definition of the group A1 event and the A2 event is the same as that of the single call A1 event and the A2 event of the 3 GPP. To support the flexibility of RRM (Radio Resource Management) algorithms, the thresholds for the group a1 event, a2 event, and the thresholds for the single call a1 event, a2 event may be set to different thresholds.

If the RSRP of the cell measured by the Group call UE meets the criteria for determining the Group a1 event or the Group a2 event configured by the eNodeB through the GroupCallConfig message (i.e., meets the requirements of the Group a2 event measurement control parameter and the Group a1 event measurement control parameter), the UE reports a Group measurement report (including a Group a2 event measurement report and a Group a1 event measurement report) to the eNodeB through SRB1 in a peer-to-peer manner, where the report includes the Group ID of the Group call that the UE is receiving. The group calling UE in the RRC idle state can report the group measurement report only after the RRC connection is established.

If the RSRP of the cell measured by the Group call UE meets the criteria for determining the single-call a1 event or the single-call a2 event configured by the eNodeB through the RRC connection reconfiguration message (i.e., meets the requirements for the single-call a2 event measurement control parameter and the single-call a1 event measurement control parameter), the UE reports a single-call measurement report (including a single-call a2 event measurement report and a single-call a1 event measurement report) to the eNodeB in a point-to-point manner, where the report includes the Group ID of the Group call that the UE is receiving.

The eNodeB uniformly sets switch control parameters (including group event measurement control parameters and single call event measurement control parameters) of group pilot frequency measurement for the group call UE, and only when the wireless environment meets a set threshold, the eNodeB starts the group pilot frequency measurement, configures group pilot frequency measurement gaps, closes the group pilot frequency measurement and releases the group pilot frequency measurement gaps; or starting single-call pilot frequency measurement, configuring single-call pilot frequency measurement gaps, closing the single-call pilot frequency measurement and releasing the single-call pilot frequency measurement gaps. The eNodeB ensures the downlink flow of the group call by opening and closing the group pilot frequency measurement and the single call pilot frequency measurement of the trunking system as required, and meets the QoS requirement of the group call service.

On the basis of the above embodiments, the embodiments of the present invention can implement the group pilot frequency measurement and the single-call pilot frequency measurement of the trunking system by setting the group event measurement control parameter and the single-call event measurement control parameter, so as to ensure the downlink flow of the group call and meet the QoS requirements of the group call service.

Further, based on the above embodiment, the uniformly configuring the group pilot frequency measurement gap for the group call is specifically implemented by an eNodeB sending a GroupCallConfig broadcast message; the configuring of the single-call pilot frequency measurement gaps for all group call UEs in the group call is specifically realized by the eNodeB sending a point-to-point RRC connection reconfiguration message to all group call UEs.

An eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking; if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call. The unified configuration of the group pilot frequency measurement gaps for the group call is realized by specifically sending a group call configuration broadcast message; the configuring of the single-call pilot frequency measurement gap for all group call UEs in the group call is specifically realized by sending an RRC connection reconfiguration message to all group call UEs.

On the basis of the above embodiment, the embodiment of the present invention respectively implements the group pilot frequency measurement gap configuration and the single-call pilot frequency measurement gap configuration by sending the GroupCallConfig broadcast message and the RRC connection reconfiguration message, thereby ensuring the effective configuration of the pilot frequency measurement gap.

The decision criterion of the eNodeB for initiating the group pilot frequency measurement for a group call is group a2 event or single call a2 event. Besides configuring the single-call A2 event measurement control parameters to the UEs, the eNodeB also configures group A2 event measurement control parameters to all the UEs in an RRC idle state and a connection state in a group call in a unified manner through a group Call Config message, and when any group call UE measures that RSRP (Reference Signal Receiving Power) meets the group A2 event or the single-call A2 event, reports a group A2 event measurement report or a single-call A2 event measurement report. As long as the eNodeB receives the group A2 event measurement report or the single call A2 event measurement report reported by any group call UE, the eNodeB immediately and uniformly configures the group pilot frequency measurement gaps for all the UEs of the group call through the group call Config message.

Besides configuring the single call A1 event measurement control parameters to the UE, the eNodeB also configures the group A1 event measurement control parameters to all the UEs in the RRC idle state and the connected state in one group call in a unified way through the group Call Config message. And when any group calling UE measures that the RSRP meets the event of the group A1, reporting a group A1 event measurement report. Only when the eNodeB receives the group a1 event measurement report reported by all the group UEs in a group call and the individual call service of all the group UEs does not need individual call pilot frequency measurement, the eNodeB closes the group pilot frequency measurement of the group call through the GroupCallConfig message, i.e., releases the group pilot frequency measurement gap of the group call.

In an LTE public network, an eNodeB generally controls the start of single-call pilot frequency measurement by using a single-call a2 event, that is, when a UE reports a single-call a2 event measurement report, the eNodeB starts single-call pilot frequency measurement to the UE through an RRC (Radio Resource Control) connection reconfiguration message, and configures a single-call pilot frequency measurement gap. In order to implement the synchronous configuration of the group pilot frequency measurement and the single-call pilot frequency measurement, when the eNodeB configures the group pilot frequency measurement gap to the group call, it also needs to configure the single-call pilot frequency measurement gap to each UE in the RRC connected state in the group call. That is, if "group calling UE reports single call a2 event report" or "group calling UE reports group a2 event report" or "group calling has configured group pilot frequency measurement gap" is true, eNodeB configures single call pilot frequency measurement gap for group calling UE in RRC connected state.

In the LTE public network, the eNodeB generally controls the closing of the single-call pilot frequency measurement by using the single-call a1 event, that is, when the UE reports the single-call a1 event measurement report, the eNodeB closes the single-call pilot frequency measurement to the UE through the RRC connection reconfiguration message, and releases the single-call pilot frequency measurement gap. In order to implement the synchronous configuration of the group pilot frequency measurement and the single-call pilot frequency measurement, when the UE reports the single-call a1 event measurement report and the group call does not configure the group pilot frequency measurement gap or needs to release the group pilot frequency measurement gap, the eNodeB closes the single-call pilot frequency measurement to the UE and releases the single-call pilot frequency measurement gap.

On the basis of the above embodiment, the embodiment of the present invention provides a synchronous opening and closing mechanism for a group pilot frequency measurement gap and a single-call pilot frequency measurement gap for group call UEs in an RRC connected state in a cluster system pilot frequency network; that is, the opening or closing of the two types of inter-frequency measurement gaps are related to each other in triggering conditions and opportunities, so as to achieve synchronization. Through the mechanism, the embodiment of the invention can ensure that the group pilot frequency measurement interval and the single-call pilot frequency measurement interval reasonably coexist, and avoid the call drop of the group call service and the single call service.

Further, according to the above embodiment, after the releasing the group inter-frequency measurement gap, the method further includes: if the release of the group pilot frequency measurement gap is realized by a group call release message sent by the eNodeB, the eNodeB recovers the original configuration value of the single-call pilot frequency measurement gap of each UE in the group call, or allocates the single-call pilot frequency measurement gap to each UE in the group call again.

After the group pilot frequency measurement gap is released, if there still exists UE needing single-call pilot frequency measurement in the group call, in order to ensure the time domain discretization of the single-call pilot frequency measurement gap of different UE, the eNodeB can restore the original single-call pilot frequency measurement gap configuration value of each UE or reallocate the pilot frequency measurement gap to the UE so as to alleviate the uplink channel congestion caused by the uplink signaling storm.

On the basis of the above embodiments, the embodiment of the present invention can alleviate uplink channel congestion caused by an uplink signaling storm by recovering the original single-call pilot frequency measurement gap configuration value of each UE after the pilot frequency measurement gap is released, or re-allocating the pilot frequency measurement gap to the UE.

Further, based on the above embodiment, the method further includes: for UE in group calling, eNodeB adopts the control mode of the pilot frequency measurement GAP state machine of the UE to manage the single-call pilot frequency measurement GAP and the group pilot frequency measurement GAP of the UE in the group calling; the pilot frequency measurement GAP state machine comprises six pilot frequency measurement GAP states, which are respectively: no single-call pilot frequency measurement GAP, no group pilot frequency measurement GAP; single-call GAP triggered by single-call pilot frequency measurement, and no group GAP; the single-call GAP triggered by the single-call pilot frequency measurement, wherein the group GAP is configured; the single-call GAP triggered by the single-call pilot frequency measurement does not need a configured group GAP; a group pilot frequency measurement triggered single-call GAP, the group GAP being configured; the group pilot frequency measurement triggers the single-call GAP without the configured group GAP.

For the group calling UE in the RRC connection state, in order to realize the mutual correlation between the opening and the closing of the single-call pilot frequency measurement GAP and the group pilot frequency measurement GAP and achieve the synchronization, the embodiment of the invention provides that the eNodeB manages the single-call pilot frequency measurement GAP and the group pilot frequency measurement GAP of the UE in the group calling by adopting the control mode of the pilot frequency measurement GAP state machine of the UE. The different frequency measurement GAP state records the state of the single-call different frequency measurement GAP and the state of the group different frequency measurement GAP at the same time, and the configuration, the maintenance and the release of the single-call different frequency measurement GAP and the group different frequency measurement GAP are determined by different frequency measurement GAP states. Wherein GAP means "GAP".

The different frequency measurement GAP state of the UE only exists in a TD-LTE cluster system adopting different frequency networking, and is stored in the UE context by an eNodeB, so that the UE side does not need to store the state. In a TD-LTE cluster system of the same-frequency networking, UE does not need pilot frequency measurement, and the eNodeB does not have the state of the GAP of the pilot frequency measurement of the UE.

A UE may send G-RNTI MAC CE to the eNodeB during random access or in RRC connected state, informing the eNodeB of the group call the UE is listening to; or notify the eNodeB of the Group call being received by the UE through a single call event Measurement Report (single call Measurement Report) or a Group event Measurement Report (Group Measurement Report) carrying the Group ID. The eNodeB accordingly recognizes the UE as a group calling UE. If the UE does not send the message, the eNodeB determines the UE to be the single-call UE.

For a group calling UE in RRC connected state, its single paging pilot frequency measurement gap can be divided into three states: the method comprises the following steps of (1) no single-call pilot frequency measurement GAP, single-call GAP triggered by single-call pilot frequency measurement, and single-call GAP triggered by group pilot frequency measurement; wherein, the single call GAP means the single call pilot frequency measurement GAP. For a group calling UE in RRC connected state, the group pilot frequency measurement gap can be divided into three states: no group inter-frequency measurement GAP, configured group inter-frequency measurement GAP, no configured group inter-frequency measurement GAP. Combining the two types of inter-frequency measurement GAP states will generate six combined states State 1-State 6 that may exist in practical situations, and these six combined states are the inter-frequency measurement GAP states of the group calling UE.

For a single-call UE in RRC connected State, the inter-frequency measurement GAP State has only the following two states State1 and State 2.

The six inter-frequency measurement GAP states are defined as follows.

● State1: no single-call pilot frequency measurement GAP, no group pilot frequency measurement GAP

This is the initial inter-frequency measurement GAP state.

For a UE that just enters the RRC connected state, the inter-frequency measurement GAP state is in this state. Indicating that the eNodeB has not configured it with a single paging pilot measurement GAP and a group pilot measurement GAP.

● State 2: single-call GAP triggered by single-call pilot frequency measurement, no group GAP

For a UE in RRC connected state, the eNodeB is configured with a single-call pilot frequency measurement GAP due to being triggered by a single-call a2 event measurement report, and the eNodeB is not configured with a group pilot frequency measurement GAP.

For example, when the UE reports the measurement report of the single call a2 event, but does not answer the group call, the inter-frequency measurement GAP state is in this state.

● State3: single-call GAP triggered by single-call pilot frequency measurement, group GAP being configured

For a group calling UE in RRC connection state, since eNodeB is triggered by single call A2 event measurement report, it configures single call pilot frequency measurement GAP, and also configures pilot frequency measurement GAP state of the UE when the group pilot frequency measurement GAP is configured.

For example, a Group call UE reports a single-call a2 event measurement report containing a Group ID, and triggers an eNodeB to configure a Group pilot frequency measurement GAP and a single-call pilot frequency measurement GAP, where the State of the pilot frequency measurement GAP of the UE is shifted from State1 to this State.

● State4: single-call GAP triggered by single-call pilot frequency measurement without configured group GAP

For a group call UE in an RRC connected state, since the eNodeB is triggered by the measurement report of the single-call a2 event, the eNodeB configures a single-call pilot frequency measurement GAP and also configures a group pilot frequency measurement GAP, but the UE considers that the radio environment in which the eNodeB is located does not need to perform group pilot frequency measurement (i.e., does not need the group pilot frequency measurement GAP).

For example, a UE with an inter-frequency measurement GAP State of State3 reports a group a1 event measurement report to an eNodeB, and although the UE does not need to perform group inter-frequency measurement, the eNodeB still needs to perform single-call inter-frequency measurement, so to prevent a group call drop, the eNodeB still needs to keep the UE in a group inter-frequency measurement GAP, and at this time, the inter-frequency measurement GAP State of the UE is shifted from State3 to the current State.

● State 5: group inter-frequency measurement triggered single-call GAP, group GAP configured

For a group calling UE in RRC connection state, the eNodeB configures the group pilot frequency measurement gap, and because of the existence of the group pilot frequency measurement gap, the eNodeB configures the single calling pilot frequency measurement gap.

For example, the UE with the pilot frequency measurement GAP State at State3 reports the single-call a1 event measurement report containing the Group ID to the eNodeB, but since the UE is also configured with the Group pilot frequency measurement GAP, the eNodeB cannot release the single-call pilot frequency measurement GAP, the UE still needs to maintain the single-call pilot frequency measurement GAP because the Group pilot frequency measurement GAP exists, and at this time, the pilot frequency measurement GAP State of the UE is shifted from State3 to the present State.

● State6: the group pilot frequency measurement triggered single-call GAP does not need the configured group GAP

For a group calling UE in an RRC connection state, the UE maintains a single-call pilot frequency measurement gap due to the existence of the group pilot frequency measurement gap, but the UE considers that the wireless environment in which the UE is located does not need to perform group pilot frequency measurement (i.e. does not need the group pilot frequency measurement gap).

For example, the UE with the inter-frequency measurement GAP State in State5 reports a group a1 event report of the UE to the eNodeB, and the UE considers that the radio environment in which the UE is located does not need to perform group inter-frequency measurement (i.e., does not need a group inter-frequency measurement GAP), and the inter-frequency measurement GAP State of the UE is moved from State5 to the current State.

If the pilot frequency measurement GAP state of all the UE in one group call is migrated to the state, which indicates that all the group call UE considers that the wireless environment in which the UE is located at the moment does not need to carry out the group pilot frequency measurement, the eNodeB sends out a group pilot frequency measurement message, closes the group pilot frequency measurement, and releases the group pilot frequency measurement GAP; and sending RRC connection reconfiguration information to each group calling UE, and releasing the single-call pilot frequency measurement GAP of each group calling UE.

Under the trigger of the single-call event measurement report or the group event measurement report received by the eNodeB and the trigger of the corresponding subsequent processing of the eNodeB, state transitions occur among the six states of the inter-frequency measurement gap of the group call UE in the eNodeB, and the state transition table is shown in table 1. The table describes the corresponding processing of the eNodeB triggered by an event and the migration target of the GAP state of the UE in any GAP state of inter-frequency measurement of the UE.

It should be noted that the foremost sequence numbers such as 1.1 and 1.2 in each frame in table 1 are only indicative sequence numbers, and have no sequential relationship, and the content in each frame indicates the GAP state change condition generated when triggered by an event corresponding to the corresponding row in the state of the corresponding column.

According to table 1, the pilot frequency measurement GAP state machine of the corresponding group calling UE can be obtained.

On the basis of the above embodiments, the embodiments of the present invention manage the opening and closing of the single-call pilot frequency measurement GAP and the group pilot frequency measurement GAP of the UE by using the control mode of the pilot frequency measurement GAP state machine of the UE, thereby improving the reliability of the synchronization control of the pilot frequency measurement GAP.

Fig. 2 is a schematic end-to-end flow chart of a method for synchronization control of inter-frequency measurement gaps according to another embodiment of the present invention. As shown in fig. 2, it shows a scenario where the opening and closing of the group inter-frequency measurement gap triggers the opening and closing of the single-call inter-frequency measurement gap. The specific interaction process is as follows:

1.1 a-1b, in a TD-LTE cluster system of a pilot frequency network, when a group call is established, an eNodeB broadcasts a trunk paging message and a GroupCallConfig message, wherein a group A1 event and an A2 event measurement control parameter of the group call are configured in the GroupCallConfig message. Herein, epc (evolved Packet core) refers to a Packet core network.

2. The UE answering the group call initiates random access by high-level triggering and enters an RRC connection state. The GAP State of the UE is the initial State "State 1: no single-call pilot frequency measurement GAP, no group pilot frequency measurement GAP ". The UE sends G-RNTI MAC CE in MSG3 (signaling for random access) indicating the received group call. The eNodeB can query whether the group call has configured the group pilot frequency measurement GAP according to the G-RNTI, and if the group call has not started the group pilot frequency measurement and has not configured the group pilot frequency measurement GAP (for example, the UE has not reported the group a2 event measurement report or the single call a2 event measurement report triggers the start of the group pilot frequency measurement before), the GAP State of the UE is still maintained at State 1.

3.3 a-3b, the eNodeB sets measurement control parameters including single call A1 event and A2 event to the UE via RRC connection reconfiguration message.

4. When the wireless environment satisfies the group a2 event, the UE reports a group a2 event measurement report.

5.5 a-5b, the eNodeB queries that the Group call is not configured with the Group pilot frequency measurement gap according to the Group ID in the event measurement report of the Group A2, and configures the Group pilot frequency measurement gap through the Group CallConfig message, namely, the Group pilot frequency measurement is started.

6.6 a-6b, the eNodeB configures the single-call pilot frequency measurement gap to the UE through the RRC connection reconfiguration message, and the value is the value of the group pilot frequency measurement gap. At this time, in eNodeB, the inter-frequency measurement GAP State of the UE is migrated to "State 5: group pilot measurement triggered single-call GAP, group GAP configured ".

7.7 a-7b, the eNodeB traverses other UEs (UEx) in the RRC connection state in the group call, and configures single-call pilot frequency measurement gaps (values are the values of the group pilot frequency measurement gaps) and single-call A1 events and A2 event measurement control parameters for the UEs through RRC connection reconfiguration messages. The GAP state for each UE follows the GAP state transition specification in table 1.

8. When the wireless environment satisfies the group a1 event, the UE reports a group a1 event measurement report. The inter-frequency measurement GAP State of the UE in eNodeB transitions to "State 6: group inter-frequency measurement triggered single-call GAPs, without the need for configured group GAPs ".

9.9 a-9d, at this time, the eNodeB cannot immediately release the group pilot frequency measurement GAP of the group call, and needs to determine the GAP states of other group call UEs in the RRC connected state. Only when the GAP states of all the group calling UEs of the group call are State6, the eNodeB can release the group pilot frequency measurement GAP of the group call. Assuming that the eNodeB inquires that the GAP states of all the group calling UEs of the group call are State6, the eNodeB releases the group pilot frequency measurement GAP of the group call through the groucallconfig message. And the eNodeB releases the single-call pilot frequency measurement gap of each UE in the group call through the RRC connection reconfiguration message. The GAP State of each group of UE is transferred to 'State 1, no single call pilot frequency measurement GAP, no group pilot frequency measurement GAP'.

Fig. 3 is a schematic end-to-end flow chart of a method for synchronization control of inter-frequency measurement gaps according to still another embodiment of the present invention. As shown in fig. 3, it shows a scenario where the opening and closing of the single-call inter-frequency measurement gap triggers the opening and closing of the group inter-frequency measurement gap. The specific interaction process is as follows:

1. in the TD-LTE cluster system of the pilot frequency networking, when a group call is established, an eNodeB broadcasts a trunk paging message and a GroupCallConfig message, and a group A1 event and an A2 event measurement control parameter of the group call are configured in the GroupCallConfig message.

2. The UE answering the group call initiates random access by high-level triggering and enters an RRC connection state. The GAP State of the UE is the initial State "State 1: no single-call pilot frequency measurement GAP, no group pilot frequency measurement GAP ". The UE transmits G-RNTIMAC CE in MSG3 indicating the received group call. The eNodeB can inquire whether the group call has configured the group pilot frequency measurement GAP according to the G-RNTI, and assume that the group call has not started the group pilot frequency measurement at present, the group pilot frequency measurement GAP has not been configured yet (for example, the UE has not reported the group a2 event measurement report or the single call a2 event measurement report triggered the start of the group pilot frequency measurement at present), and the GAP State of the UE is still maintained at State 1.

4. When the radio environment meets the single call A2 event, the UE reports the single call A2 event measurement report, which contains the Group ID.

5.5 a-5b, the eNodeB inquires that the Group call is not configured with the Group pilot frequency measurement gap through the Group ID in the single call A2 event report, and configures the Group pilot frequency measurement gap through the Group CallConfig message, namely, starts the Group pilot frequency measurement.

6.6 a-6b, the eNodeB configures the single-call pilot frequency measurement gap to the UE through the RRC connection reconfiguration message, and the value is the value of the group pilot frequency measurement gap. At this time, the inter-frequency measurement GAP State of the UE in eNodeB is shifted to "State 3: single-call GAP triggered by single-call inter-frequency measurement, group GAP is configured".

8. When the wireless environment meets the event of Group A1, the UE reports the event Measurement Report of Group A1 through the Group Measurement Report. The GAP State of the UE in the eNodeB transitions to "State 4: single-call GAP triggered by single-call inter-frequency measurements, without a configured group GAP".

9. When the wireless environment meets the single call A1 event, the UE reports the single call A1 event Measurement Report containing the Group ID through the single call Measurement Report. The GAP State of the UE in the eNodeB transitions to "State 6: group inter-frequency measurement triggered single call GAP, without a configured group GAP".

10.10 a-10d, at this time, the eNodeB cannot immediately release the group pilot frequency measurement GAP of the group call, and needs to determine the GAP states of other group call UEs in the RRC connected state. Only when the GAP states of all the group calling UEs of the group call are State6, the eNodeB can release the group pilot frequency measurement GAP of the group call. Assuming that the eNodeB inquires that the GAP states of all the group calling UEs of the group call are State6, the eNodeB releases the group pilot frequency measurement GAP of the group call through the groucallconfig message. And the eNodeB releases the single-call pilot frequency measurement gap of each UE in the group call through the RRC connection reconfiguration message. The GAP State of each group of UE is transferred to 'State 1, no single call pilot frequency measurement GAP, no group pilot frequency measurement GAP'.

All group calling UEs are in State6, implying that the eNodeB receives the group a1 event measurement report of all group calling UEs and the single-call a1 event measurement report of the UE sending the single-call a2 event measurement report, otherwise, the eNodeB will not set the states of all group calling UEs to State 6.

When the TD-LTE cluster system adopts pilot frequency networking, the embodiment of the invention adopts a mutual correlation and synchronization mode for opening and closing the group pilot frequency measurement gap and the single-call pilot frequency measurement gap of the group calling UE in an RRC connection state, thereby avoiding single call drop or group call drop.

The correlation means that the opening of the group pilot frequency measurement gap triggers the opening of the single-call pilot frequency measurement gap; otherwise, the opening of the single paging pilot frequency measurement gap will also trigger the opening of the group pilot frequency measurement gap. In addition, the closing of the group pilot frequency measurement gap will affect the closing of the single-call pilot frequency measurement gap; conversely, the closing of the single paging pilot frequency measurement gap will also affect the closing of the group pilot frequency measurement gap. By synchronous, it is meant that the opening and closing of the single-call inter-frequency measurement gaps and the group inter-frequency measurement gaps must be performed at the same time.

In order to ensure the group call downlink throughput, the embodiment of the invention adopts a group A2 event or a single call A2 event as the starting condition of the group pilot frequency measurement; group a1 event and single call a1 event as turn-off conditions for group pilot measurement. As long as at least one group calling UE in the group calling satisfies the group A2 event or the single call A2 event, the eNodeB starts the group pilot frequency measurement of the group calling and configures a group pilot frequency measurement gap; only if all the group calling UEs in the group call satisfy the group a1 event and the single call a1 event, the eNodeB will close the group pilot frequency measurement of the group call and release the group pilot frequency measurement gap.

Fig. 4 is a schematic structural diagram of an eNodeB base station for synchronization control of inter-frequency measurement gaps according to an embodiment of the present invention. As shown in fig. 4, the base station includes: an inter-frequency measurement gap configuration request receiving module 10, a determining module 20, and an inter-frequency measurement gap configuration module 30, where:

the inter-frequency measurement gap configuration request receiving module 10 is specifically configured to: receiving a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC (radio resource control) connection state in a cluster system pilot frequency network;

if the pilot frequency measurement gap configuration request receiving module 10 receives a group pilot frequency measurement gap configuration request sent by the group call UE, it indicates that the group call UE has a requirement for configuring a group pilot frequency measurement gap; if the pilot frequency measurement gap configuration request receiving module 10 receives a single-call pilot frequency measurement gap configuration request sent by the group call UE, it indicates that the group call UE has a requirement for configuring a single-call pilot frequency measurement gap.

The determining module 20 is specifically configured to: judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not;

the judging module 20 judges whether the group call answered by the group call UE has configured a group pilot frequency measurement gap; for example, if the group call UE has sent a group pilot frequency measurement gap configuration request and a group pilot frequency measurement gap has been configured for the group call that the group call UE answers, it is known that the group pilot frequency measurement gap has been configured for the group call that the group call UE answers; otherwise, it is known that the group call answered by the group call UE is not configured with the group pilot frequency measurement gap.

The pilot frequency measurement gap configuration module 30 is specifically configured to: if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

If the pilot frequency measurement gap configuration module 30 determines that the group call answered by the group call UE is not configured with the group pilot frequency measurement gap, then uniformly configuring the group pilot frequency measurement gap for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all group call UEs in the group call; when configuring single-call pilot frequency measurement gaps for all group call UEs in the group call, the configuration value of the single-call pilot frequency measurement gaps is the same as the configuration value of the group pilot frequency measurement gaps.

Further, based on the above embodiment, the base station further includes an inter-frequency measurement gap releasing module, specifically configured to:

if the received group pilot frequency measurement gap configuration request triggers the configuration of the pilot frequency measurement gap, if the pilot frequency measurement gap release module receives the group pilot frequency measurement gap release requests sent by all group calling UEs in the group calling, the group pilot frequency measurement gap and the single-calling pilot frequency measurement gap are released;

if the pilot frequency measurement gap release module receives a group pilot frequency measurement gap release request sent by all group calling UEs in the group calling, indicating that all group calling UEs in the group calling do not need group pilot frequency measurement any more; since the received request for configuring the group inter-frequency measurement gap triggers the configuration of the inter-frequency measurement gap, it means that the group call UE does not need the single-call inter-frequency measurement. Therefore, if the pilot frequency measurement gap release module receives the group pilot frequency measurement gap release request sent by all the group call UEs in the group call, which indicates that all the group call UEs in the group call no longer need the group pilot frequency measurement and the single call pilot frequency measurement, the group pilot frequency measurement gap and the single call pilot frequency measurement gap are released.

If the received single-call pilot frequency measurement gap configuration request triggers the configuration of the pilot frequency measurement gap, if a pilot frequency measurement gap release module receives group pilot frequency measurement gap release requests sent by all group call UEs in the group call and receives single-call pilot frequency measurement gap release requests sent by the group call UEs sending the single-call pilot frequency measurement gap configuration requests, the group pilot frequency measurement gap and the single-call pilot frequency measurement gap are released.

If the pilot frequency measurement gap release module receives a group pilot frequency measurement gap release request sent by all group calling UEs in the group calling, indicating that all group calling UEs in the group calling do not need group pilot frequency measurement any more; and since the eNodeB triggers the configuration of the inter-frequency measurement gap by the received single-call inter-frequency measurement gap configuration request, it indicates that there is a group call UE requiring single-call inter-frequency measurement in the group call, and only when the inter-frequency measurement gap release module receives the group inter-frequency measurement gap release requests sent by all group call UEs in the group call and receives the single-call inter-frequency measurement gap release requests sent by the group call UE sending the single-call inter-frequency measurement gap configuration request, the group inter-frequency measurement gap and the single-call inter-frequency measurement gap are released.

Further, based on the above embodiment, when the request receiving module 10 for configuration of measurement gap of pilot frequency in a group is used to receive a request for configuration of measurement gap of pilot frequency in a group, the request is specifically implemented by receiving a measurement report of event in group a2 sent by the group call UE; the inter-frequency measurement gap configuration request receiving module 10 is specifically implemented by receiving a single-call a2 event measurement report sent by the group call UE when being used for receiving a single-call inter-frequency measurement gap configuration request; when the pilot frequency measurement gap release module receives a group pilot frequency measurement gap release request, the mode is specifically realized by receiving a group A1 event measurement report sent by the group calling UE; when the pilot frequency measurement gap release module receives a single-call pilot frequency measurement gap release request, the single-call pilot frequency measurement gap release request is realized by receiving a single-call A1 event measurement report sent by the group call UE; the group a2 event measurement report, the single-call a2 event measurement report, the group a1 event measurement report, and the single-call a1 event measurement report sent by the group call UE include a group call ID.

When receiving the group pilot frequency measurement gap configuration request, the pilot frequency measurement gap configuration request receiving module 10 may implement the configuration by receiving a group a2 event measurement report sent by the group call UE; the inter-frequency measurement gap configuration request receiving module 10 receives the group a2 event measurement report, which may also be referred to as the occurrence of a group a2 event.

The inter-frequency measurement gap configuration request receiving module 10 may be implemented in a form of receiving a single-call a2 event measurement report sent by the group call UE when receiving the single-call inter-frequency measurement gap configuration request; the inter-frequency measurement gap configuration request receiving module 10 receives the single call a2 event measurement report, which may also be referred to as the occurrence of a single call a2 event.

The pilot frequency measurement gap release module is used for receiving a single-call pilot frequency measurement gap release request, and can be realized by receiving a group A1 event measurement report sent by the group call UE; the inter-frequency measurement gap release module receives the group a1 event measurement report, which may also be referred to as the occurrence of a group a1 event.

The pilot frequency measurement gap release module is used for receiving a single-call pilot frequency measurement gap release request, and can be realized by receiving a single-call A1 event measurement report sent by the group call UE; the inter-frequency measurement gap release module receives the single-call a1 event measurement report, which may also be referred to as the occurrence of a single-call a1 event.

For group call UEs, the group a2 event measurement report, the single call a2 event measurement report, the group a1 event measurement report, and the single call a1 event measurement report include a group call ID.

Further, based on the above embodiment, the system further includes a measurement control parameter configuration module, specifically configured to: configuring a group A2 event measurement control parameter for all UEs in a group call, so that the group call UEs send a group A2 event measurement report when the wireless environment meets the requirement of the group A2 event measurement control parameter; configuring single call A2 event measurement control parameters for all UEs in a group call, so that the group call UEs send single call A2 event measurement reports when the wireless environment meets the requirements of the single call A2 event measurement control parameters; configuring a group A1 event measurement control parameter for all UEs in a group call, so that the group call UEs can send a group A1 event measurement report when the group pilot frequency measurement is not needed; configuring single call A1 event measurement control parameters for all the UEs in the group call, so that the group call UEs can send the single call A1 event measurement report when the single call pilot frequency measurement is not needed.

And the measurement control parameter configuration module configures the group event measurement control parameters by adopting an air-interface GroupCallConfig message. In the GroupCallConfig message, a groupMeasConfig IE is newly added for configuring the group event measurement control parameters for all the UEs in the RRC idle state and the connected state in the group call.

The group event measurement control parameters include group A2 event measurement control parameters and group A1 event measurement control parameters. The measurement control parameter configuration module configures a group A2 event measurement control parameter for all the UEs in a group call, so that the group call UEs send a group A2 event measurement report when the wireless environment meets the requirement of the group A2 event measurement control parameter; the measurement control parameter configuration module configures a group A1 event measurement control parameter for all the UEs in a group call, so that the group call UEs send the group A1 event measurement report when the wireless environment meets the requirement of the group A1 event measurement control parameter.

The measurement control parameter configuration module configures single-call event measurement control parameters for all the UEs in the group call through RRC connection reconfiguration messages, wherein the single-call event measurement control parameters comprise single-call A2 event measurement control parameters and single-call A1 event measurement control parameters. The measurement control parameter configuration module configures single call A2 event measurement control parameters for all the UEs in a group call, so that the group call UEs send single call A2 event measurement reports when the wireless environment meets the requirements of the single call A2 event measurement control parameters; the measurement control parameter configuration module configures single call A1 event measurement control parameters for all the UEs in the group call, so that the group call UEs send the single call A1 event measurement report when the wireless environment meets the requirement of the single call A1 event measurement control parameters.

Further, based on the above embodiment, the pilot frequency measurement gap configuration module is specifically implemented by sending a GroupCallConfig broadcast message when being used for uniformly configuring a group pilot frequency measurement gap for the group call; the pilot frequency measurement gap configuration module is specifically implemented by sending a point-to-point RRC connection reconfiguration message to all group calling UEs when being used for configuring single-call pilot frequency measurement gaps for all group calling UEs in the group calling.

The pilot frequency measurement gap configuration module is used for uniformly configuring the group pilot frequency measurement gaps for the group call, and is specifically realized by sending a group call configuration broadcast message; the pilot frequency measurement gap configuration module configures single-call pilot frequency measurement gaps for all group calling UE in the group calling, and is specifically realized by sending RRC connection reconfiguration messages to all group calling UE.

Further, based on the above embodiment, the base station further includes a single-call pilot frequency measurement gap reconfiguration module, which is specifically configured to: after the group pilot frequency measurement gap is released, if the release of the group pilot frequency measurement gap is realized by a group call release message sent by an eNodeB, the original single-call pilot frequency measurement gap configuration value of each UE in the group call is restored, or the single-call pilot frequency measurement gap is distributed to each UE in the group call again.

After the group pilot frequency measurement gap is released, if there still exists a UE requiring single-call pilot frequency measurement in a group call, in order to ensure time domain discretization of the single-call pilot frequency measurement gaps of different UEs, the single-call pilot frequency measurement gap reconfiguration module may restore the original single-call pilot frequency measurement gap configuration value of each UE, or reallocate the pilot frequency measurement gaps to the UEs, so as to alleviate uplink channel congestion caused by an uplink signaling storm.

Further, based on the above embodiment, the base station further includes a GAP state management module, specifically configured to: for UE in group calling, adopting the control mode of the pilot frequency measurement GAP state machine of the UE to manage the single-call pilot frequency measurement GAP and the group pilot frequency measurement GAP of the UE in the group calling; the pilot frequency measurement GAP state machine comprises six pilot frequency measurement GAP states, which are respectively: no single-call pilot frequency measurement GAP, no group pilot frequency measurement GAP; single-call GAP triggered by single-call pilot frequency measurement, and no group GAP; the single-call GAP triggered by the single-call pilot frequency measurement, wherein the group GAP is configured; the single-call GAP triggered by the single-call pilot frequency measurement does not need a configured group GAP; a group pilot frequency measurement triggered single-call GAP, the group GAP being configured; the group pilot frequency measurement triggers the single-call GAP without the configured group GAP.

For the group calling UE in RRC connection state, in order to realize the mutual correlation between the opening and closing of the single-call pilot frequency measurement GAP and the group pilot frequency measurement GAP, and achieve the synchronization, for the UE in the group calling, the base station also comprises a GAP state management module which manages the single-call pilot frequency measurement GAP and the group pilot frequency measurement GAP of the UE in the group calling by adopting the control mode of the pilot frequency measurement GAP state machine of the UE. The different frequency measurement GAP state records the state of the single-call different frequency measurement GAP and the state of the group different frequency measurement GAP at the same time, and the configuration, the maintenance and the release of the single-call different frequency measurement GAP and the group different frequency measurement GAP are determined by different frequency measurement GAP states.

The pilot frequency measurement GAP state machine comprises six pilot frequency measurement GAP states, which are respectively: no single-call pilot frequency measurement GAP, no group pilot frequency measurement GAP; single-call GAP triggered by single-call pilot frequency measurement, and no group GAP; the single-call GAP triggered by the single-call pilot frequency measurement, wherein the group GAP is configured; the single-call GAP triggered by the single-call pilot frequency measurement does not need a configured group GAP; a group pilot frequency measurement triggered single-call GAP, the group GAP being configured; the group pilot frequency measurement triggers the single-call GAP without the configured group GAP.

Under the triggering of the received single-call event measurement report or the group event measurement report and the triggering of the corresponding subsequent processing, the six states of the pilot frequency measurement gap of the group calling UE can generate state transition.

The base station provided in the embodiment of the present invention is used for the method, and specific functions may refer to the above method flow, which is not described herein again.

Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 5, the electronic device includes a processor 501, a memory 502, and a bus 503. Wherein, the processor 501 and the memory 502 complete the communication with each other through the bus 503; the processor 501 is configured to call program instructions in the memory 502 to perform the methods provided by the above-mentioned method embodiments, for example, including: an eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking; judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not; if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

An embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer can execute the methods provided by the above method embodiments, for example, the method includes: an eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking; judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not; if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

Embodiments of the present invention provide a non-transitory computer-readable storage medium, which stores computer instructions, where the computer instructions cause the computer to perform the methods provided by the above method embodiments, for example, the methods include: an eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking; judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not; if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

The above-described embodiments of the electronic device and the like are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may also be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the 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 an electronic 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

1. A method for inter-frequency measurement gap synchronization control, comprising:

an eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC connection state in a cluster system pilot frequency networking;

judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not;

if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

2. The method of claim 1, further comprising:

3. The method according to claim 1 or 2, characterized in that:

the group pilot frequency measurement gap configuration request is obtained by an eNodeB receiving a group A2 event measurement report sent by the group calling UE; the single-call pilot frequency measurement gap configuration request is obtained by an eNodeB receiving a single-call A2 event measurement report sent by the group calling UE; the group pilot frequency measurement gap release request is obtained by an eNodeB receiving a group A1 event measurement report sent by the group calling UE; the single-call pilot frequency measurement gap release request is obtained by an eNodeB receiving a single-call A1 event measurement report sent by the group calling UE;

the group a2 event measurement report, the single-call a2 event measurement report, the group a1 event measurement report, and the single-call a1 event measurement report sent by the group call UE include a group call ID.

4. The method of claim 3, wherein before the eNodeB receives a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by a group call UE in an RRC connected state in a cluster system pilot frequency networking, the method further comprises:

configuring a group A2 event measurement control parameter for all UEs in a group call, so that the group call UEs send a group A2 event measurement report when the wireless environment meets the requirement of the group A2 event measurement control parameter;

configuring single call A2 event measurement control parameters for all UEs in a group call, so that the group call UEs send single call A2 event measurement reports when the wireless environment meets the requirements of the single call A2 event measurement control parameters;

configuring a group A1 event measurement control parameter for all UEs in a group call, so that the group call UEs can send a group A1 event measurement report when the group pilot frequency measurement is not needed;

configuring single call A1 event measurement control parameters for all the UEs in the group call, so that the group call UEs can send the single call A1 event measurement report when the single call pilot frequency measurement is not needed.

5. The method of claim 2, wherein:

the unified configuration of the group pilot frequency measurement gaps for the group call is realized by specifically sending a group call configuration broadcast message through an eNodeB;

the configuring of the single-call pilot frequency measurement gaps for all group call UEs in the group call is specifically realized by the eNodeB sending a point-to-point RRC connection reconfiguration message to all group call UEs.

6. The method according to claim 2, wherein after said releasing said group inter-frequency measurement gap, said method further comprises:

if the release of the group pilot frequency measurement gap is realized by a group call release message sent by the eNodeB, the eNodeB recovers the original configuration value of the single-call pilot frequency measurement gap of each UE in the group call, or allocates the single-call pilot frequency measurement gap to each UE in the group call again.

7. The method according to any one of claims 1 to 6, further comprising:

for UE in group calling, eNodeB adopts the control mode of the pilot frequency measurement GAP state machine of the UE to manage the single-call pilot frequency measurement GAP and the group pilot frequency measurement GAP of the UE in the group calling;

8. An eNodeB base station for synchronization control of inter-frequency measurement gaps, the base station comprising:

the inter-frequency measurement gap configuration request receiving module is specifically configured to: receiving a group pilot frequency measurement gap configuration request or a single-call pilot frequency measurement gap configuration request sent by group call UE in an RRC (radio resource control) connection state in a cluster system pilot frequency network;

the judgment module is specifically used for: judging whether a group calling which is answered by the group calling UE is configured with a group pilot frequency measurement gap or not;

the pilot frequency measurement gap configuration module is specifically configured to: if judging that the group call answered by the group call UE is not configured with the group pilot frequency measurement gaps, uniformly configuring the group pilot frequency measurement gaps for the group call, and simultaneously configuring single-call pilot frequency measurement gaps for all the group call UEs in the group call; wherein the configuration value of the single-call pilot frequency measurement gap is the same as the configuration value of the group pilot frequency measurement gap.

9. An electronic device, comprising a memory and a processor, wherein the processor and the memory communicate with each other via a bus; the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 7.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 7.