WO2012163152A1 - Measurement reporting method and equipment based on priority - Google Patents

Abstract

Disclosed are a measurement reporting method and equipment based on priority. The method comprises: when determining to measure according to the priority of a serving cell in a first system and the priority of an adjacent cell in a second system, a user equipment measuring the adjacent cell; and when determining that a measurement result of the adjacent cell satisfies the measurement reporting condition, the user equipment reporting the measurement result to a network side. In the embodiment of the invention, a TD-LTE system is set to have high priority in an area covered by the TD-LTE and TD-SCDMA commonly, thus ensuring that the TD-LTE system is switched preferentially. As for an area in which the TD-LTE and the TD-SCDMA have the equivalent signal coverage quality, it is ensured that the condition of cross-system ping-pong switching will not occur, the cross-system switching frequency is reduced, and the fluent and uninterrupted TD-LTE service experience can be provided for the UE.

Description

 Priority-based measurement reporting method and device The present application claims to be submitted to the Chinese Patent Office on June 3, 2011, application number 201110148670.4, and the invention titled "a priority-based measurement reporting method and device" Chinese patent The priority of the application, the entire contents of which is incorporated herein by reference. Technical field

 The present invention relates to the field of communications technologies, and in particular, to a priority-based measurement reporting method and apparatus. Background technique

 TD-LTE (TD-SCDMA Long Term Evolution, long-term evolution of TD-SCDMA) is a subsequent evolution technology of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), existing TD-SCDMA network The coverage has been relatively complete. With the TD-LTE standard and mature technology, the TD-LTE system will enter the commercial stage. In the foreseeable future, the existing TD-SCDMA network equipment will coexist with the TD-LTE system for a long time, and the common network of TD-LTE and TD-SCDMA can extend coverage and balance the load.

 In order to ensure that users can experience TD-LTE services faster and better on the basis of the existing services, the TD-LTE system needs to be compatible with the existing TD-SCDMA network, that is, TD-LTE and TD- are required. Seamless roaming, handover and reselection between SCDMA, and the purpose of roaming, switching and reselection between systems is to provide uninterrupted, timely and better quality of service for users' communication in the boundary areas of different systems. . Among them, the inter-system handover between TD-LTE and TD-SCDMA is an indispensable part of the common network mobility management.

Further, in the initial stage of TD-LTE network construction, the TD-LTE network is difficult to achieve continuous coverage. In this case, the TD-SCDMA network needs to be supplemented to ensure that the user does not drop calls during the mobile process, thereby implementing the TD-LTE service. Continuous coverage; After the TD-LTE network matures, inter-system interoperability mainly considers traffic volume and load sharing; therefore, the effects of TD-LTE and TD-SCDMA interoperability functions will directly affect user perception. In the existing handover scheme, when the UE (User Equipment) is in the connected state, the network can implement mobility management of the UE through the handover procedure. The current handover mode is the UE measurement and the network is determined and executed. In order for the UE to assist the network as the handover decision, the source network configures the measurement for the UE, so that the UE reports the channel quality of the serving cell and the neighboring cell before the handover, so that the network side The UE measurement result is decided to switch and execute. The handover preparation process is divided into a network side measurement control, a UE measurement start, a UE measurement report, and a network side decision switch.

 (1) Network-side measurement control, the network sends a measurement configuration, and the measurement configuration includes a list of neighboring cells across systems.

 (2) The UE measurement is started, the UE performs signal quality measurement on all the cells listed according to the neighbor cell list, and the cells not listed in the neighbor cell list need not be measured.

 (3) UE measurement reporting, the measurement reporting criteria of the TD-SCDMA system are as follows: Periodic triggering, which can be specifically configured with "3⁄4 cycles and up" 3⁄4 times, etc.; event triggering (later reporting or periodic reporting), defining the following measurements Events: Event 3a, Event 3b, Event 3c, Event 3d. The measurement reporting criteria of the TD-LTE system are as follows: Periodic triggering, which can be configured with the reporting period and the number of reporting times. Event triggering (later reporting or periodic reporting) defines the following measurement events: Event Bl, Event B2. The UE measurement result is transmitted on the Measurement Report message of RRC (Radio Resource Control) signaling.

 (4) The network side decides to switch, and the network side determines whether the UE needs to be handed over and switches to which cell according to the handover decision algorithm according to the UE measurement report result.

 In carrying out the process of the present invention, the inventors have found that at least the following problems exist in the prior art:

Currently, the decision is based on the signal quality measurement results of the two systems. In the area where the TD-SCDMA and TD-LTE signals are jointly covered, the UE cannot be preferentially switched to the TD-LTE network. Moreover, in the area where TD-SCDMA and TD-LTE cover signal quality are the same, the signals of both systems are better and the signal quality is similar. Because of the rapid change of the wireless channel environment, ping-pong between TD-SCDMA and TD-LTE systems is easy to occur. Switching also increases the power consumption of the UE. Summary of the invention

 The embodiments of the present invention provide a priority-based measurement reporting method and device to ensure high priority of the TD-LTE system and ensure uninterrupted TD-LTE service experience to the UE.

 In order to achieve the above object, an embodiment of the present invention provides a priority-based measurement method, including:

 When the user equipment performs measurement according to the priority of the serving cell in the first system and the priority of the neighboring cell in the second system, the user equipment measures the neighboring cell;

 When the user equipment determines that the measurement result of the neighboring cell meets the measurement reporting condition, the user equipment reports the measurement result to the network side.

 A priority-based measurement reporting device includes: a first determining module, configured to perform measurement according to a priority of a serving cell in a first system and a priority of a neighboring cell in the second system;

 a measuring module, configured to perform measurement on the neighboring cell;

 a second determining module, configured to determine that the measurement result of the neighboring cell meets a measurement reporting condition;

 The sending module is configured to report the measurement result to the network side.

 Compared with the prior art, the present invention has at least the following advantages:

 In the area covered by TD-LTE and TD-SCDMA, the TD-LTE system is set to have a high priority, so that the TD-LTE system can be preferentially switched. In areas where TD-LTE and TD-SCDMA cover signal quality are equivalent, ping-pong switching between systems can be guaranteed, cross-system switching frequency is reduced, and a smooth and uninterrupted TD-LTE service experience is provided to the UE.

DRAWINGS

In order to more clearly illustrate the technical solution of the present invention, the following description will be made on the embodiments. The drawings to be used are described in a single manner. It is obvious that the drawings in the following description are only some embodiments of the present invention, and can be used by those skilled in the art without any creative work. These figures take additional drawings.

 1 is a schematic flowchart of a priority-based measurement reporting method according to Embodiment 1 of the present invention;

 2 is a schematic diagram of an application scenario in Embodiment 2 of the present invention;

 3 is a schematic diagram of an application scenario in Embodiment 3 of the present invention;

 FIG. 4 is a schematic structural diagram of a priority-based measurement reporting device according to Embodiment 4 of the present invention. detailed description

 The technical solutions in the present invention are clearly and completely described in the following with reference to the accompanying drawings in which: FIG. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

 Embodiment 1

 Embodiment 1 of the present invention provides a priority-based measurement reporting method for implementing a cross-system handover process between a TD-LTE system and a TD-SCDMA system based on a priority manner. Since the throughput and peak rate of TD-LTE are higher than those of TD-SCDMA systems, it can give the UE a better service experience, so it can set a higher priority for TD-LTE to be shared in TD-LTE and TD-SCDMA. The covered area guarantees TD-LTE priority switching.

 It should be noted that, in the embodiment of the present invention, the TD-LTE system and the TD-SCDMA system are not limited to the TD-LTE system and the TD-SCDMA system, and the technical solutions provided by the embodiments of the present invention may be used in the process of the cross-system handover. The handover process between the LTE system and the TD-SCDMA system is described as an example.

In the embodiment of the present invention, when the inter-RAT (inter-radio access technology, inter-system radio access technology) cell handover occurs, the UE may be based on the optimal For the TD-LTE system and the TD-SCDMA system, each cell (such as the working frequency, the primary frequency, etc.) has a separate priority, and the priority of each cell can be configured by the operator. In order to avoid ping-pong switching between different inter-RATs, it is required to specify that the same priority value cannot be used for multiple inter-RATs at the same time.

 The handover preparation process is divided into network-side measurement control, UE measurement initiation, UE measurement reporting, and network-side decision switching. As shown in FIG. 1, the method includes the following steps:

 Step 101: The network side sends the measurement configuration information to the UE, where the measurement configuration information carries the neighboring cell and the corresponding priority information.

 This step is a network-side measurement control process. The network side can send measurement configuration information to the UE through a SIB (System Information Block) message or an RRC message.

 In the embodiment of the present invention, the neighboring cell may be carried by means of a neighbor cell list across the system. For example, if the current serving cell is a cell in the TD-SCDMA system, the neighboring cell list will carry one or more neighboring cells of the TD-LTE system, and the measurement configuration information also carries the priority of each neighboring cell.

 Step 102: When the UE determines to perform measurement according to the priority of the serving cell in the first system and the priority of the neighboring cell in the second system, the neighboring cell is measured. The first system is a TD-SCDMA system, and the second system is a TD-LTE system; or, the first system is a TD-LTE system, and the second system is a TD-SCDMA system.

 This step is a UE measurement initiation process. If the priority of the neighboring cell in the second system is greater than the priority of the serving cell in the first system, it is determined to measure the neighboring cell (ie, always perform measurement); for example, in the TD-SCDMA system. The priority of the current serving cell 1 is 15, and the neighboring cell list has the neighboring cell 2 in the TD-LTE system, and its priority is 30, and the neighboring cell 2 needs to be measured.

If the priority of the neighboring cell in the second system is smaller than the priority of the serving cell in the first system, determining whether to measure the neighboring cell or determining not to measure the neighboring cell according to the received power level of the serving cell. For example, the priority of the current serving cell 3 in the TD-LTE system is 20, and the neighboring cell list has the neighboring cell 4 in the TD-SCDMA system, and its priority is 10, and further according to the receiving power level of the neighboring cell 4. Determine whether it is small to neighbors Zone 4 is measured.

 Specifically, if the received power level of the serving cell is not lower than a preset first threshold (the preset first threshold may be selected according to an actual experience value, such as a low quality threshold H_bad), that is, the quality of the serving cell is relatively good, then determining If the received power level of the serving cell is lower than the preset first threshold (low quality threshold H_bad), that is, the quality of the serving cell is relatively poor, then it is determined that the neighboring cell is measured, that is, Inter can be started. - RAT measurement.

 Step 103: When the UE determines that the measurement result of the neighboring cell meets the measurement reporting condition, the UE reports the measurement result to the network side. This step is for the UE to measure the reporting process. If the measurement result of the neighboring cell meets the measurement reporting condition, the measurement result is reported to the network side.

 Specifically, if the neighboring cell (such as a neighboring cell with a priority greater than the priority of the serving cell) has a received power level that is not lower than a preset second threshold, the preset second threshold may be selected according to an actual experience value, such as a high priority. The threshold H_high value), and the time that is not lower than the preset second threshold continues for a preset first time (such as the evaluation time T), and then determines that the measurement result of the neighboring cell satisfies the measurement reporting condition.

 If the received power level of the serving cell is lower than a preset third threshold (the preset third threshold may be selected according to an actual experience value, such as a low threshold), and the time below the preset third threshold continues for a preset period. For the second time (such as the evaluation time T), the received power level of the neighboring cell (such as the neighboring cell with the priority lower than the priority of the serving cell) is not lower than the preset fourth threshold (the preset fourth threshold can be selected according to the actual experience value) If the time is not lower than the preset fourth threshold for a preset third time (such as the evaluation time T), it is determined that the measurement result of the neighboring cell satisfies the measurement reporting condition.

 It should be noted that, in the embodiment of the present invention, if the measurement results of multiple neighboring cells satisfy the measurement reporting condition, the priority ranking is performed, and the measurement result of the neighboring cell with the highest priority is sent to the network side. .

 Step 104: The network side performs a decision switch according to the measurement result.

If the received power level of the neighboring cell is not lower than the preset second threshold, and the time is not lower than the preset second threshold for a preset first time, the network side performs the reporting to the higher priority according to the measurement report of the UE. Cell handover. If the received power level of the serving cell is lower than the preset third threshold, and the time lower than the preset third threshold continues for a preset second time, the received power level of the neighboring cell is not lower than the preset fourth threshold, and is not low. When the preset time is preset for the third time, the network side performs cell handover to a lower priority according to the measurement report of the UE.

 In summary, in the embodiment of the present invention, in the area covered by TD-LTE and TD-SCDMA, the TD-LTE system has a high priority, so that the TD-LTE system can be preferentially switched. In areas where TD-LTE and TD-SCDMA cover signal quality are equivalent, ping-pong switching between systems can be guaranteed, cross-system switching frequency is reduced, and a smooth and uninterrupted TD-LTE service experience is provided to the UE.

 In addition, the UE generally uses only the higher priority cell in the serving cell to measure. If the serving cell is already the highest priority, the measurement of other cells will not be performed. Only when the quality of the serving cell is relatively poor, the low is started. The measurement of the priority cell reduces the number of cells that the UE needs to start measurement and reduces the power consumption of the UE, compared with the measurement of all the neighboring cells in the measurement configuration.

 When a plurality of cells satisfy the criterion, the cell with the best quality among the highest priority is selected for reporting, and the number of cells reported by the UE is reduced compared with the cell that reports the multiple measurement reporting rules in the prior art, and The RRC message length reported by the UE is shortened, and the signaling overhead is reduced.

 In order to explain the technical solutions provided by the embodiments of the present invention, the embodiments of the present invention are described below in conjunction with specific application scenarios.

 Embodiment 2

 As shown in FIG. 2, the priority of the cell priority is TD-SCDMA cell A<TD-LTE cell B<TD-LTE cell C, and the current serving cell of the UE is cell A of TD-SCDMA, because the cell of TD-LTE Both B and cell C have higher priority than cell A of TD-SCDMA, so the UE directly measures cell B and cell C of TD-LTE.

When the TD-LTE cell B and the cell C are both higher than the high priority threshold H_high and remain for an evaluation time T, since the cell C of the TD-LTE has the highest priority, the UE is triggered to the TD-LTE cell C. The measurement is on 4艮. Embodiment 3

 As shown in FIG. 3, the priority of the cell is TD-SCDMA cell B<TD-SCDMA cell C<TD-LTE cell A, and the current serving cell of the UE is TD-LTE cell A.

 When the signal quality of the TD-LTE cell A is lower than the low quality threshold H_bad, the UE initiates measurement of the TD-SCDMA cell B and the TD-SCDMA cell C, when the TD-SCDMA cell B and the TD-SCDMA cell C are both low. The priority threshold H_low value is high, and after a period of evaluation time T, since the TD-SCDMA cell C has the highest priority, although the signal quality of the TD-SCDMA cell B is the best, the UE is triggered to measure the TD-SCDMA cell C. Reported.

 Embodiment 4

 Based on the same inventive concept as the above method, the embodiment of the present invention further provides a priority-based measurement reporting device. As shown in FIG. 4, the device includes:

 The first determining module 11 is configured to perform measurement according to a priority of the serving cell in the first system and a priority determination of the neighboring cell in the second system;

 a measuring module 12, configured to perform measurement on the neighboring cell;

 The second determining module 13 is configured to determine that the measurement result of the neighboring cell meets the measurement reporting condition;

 The sending module 14 is configured to report the measurement result to the network side.

 The method further includes: a receiving module 15 , configured to receive measurement configuration information from the network side, where the measurement configuration information carries the neighboring cell and corresponding priority information.

 The receiving module 15 is specifically configured to receive measurement configuration information from the network side by using a system information block SIB message or a radio resource control RRC message.

 The first determining module 11 is specifically configured to: if the priority of the neighboring cell in the second system is greater than the priority of the serving cell in the first system, determine to measure the neighboring cell; or

If the priority of the neighboring cell in the second system is smaller than the priority of the serving cell in the first system, determining, according to the received power level of the serving cell, performing measurement on the neighboring cell or determining not to perform the neighboring cell measuring. The first determining module 11 is specifically configured to: if the received power level of the serving cell is not lower than a preset first threshold, determine not to perform measurement on the neighboring cell; or if a received power level of the serving cell Below the preset first threshold, it is determined that the neighboring cell is measured.

 The second determining module 13 is specifically configured to: if the received power level of the neighboring cell is not lower than a preset second threshold, and is not lower than a preset second threshold for a preset first time, determining the The measurement result of the neighboring cell satisfies the measurement reporting condition; or

 If the received power level of the serving cell is lower than a preset third threshold, and the time is lower than the preset third threshold for a preset second time, the received power level of the neighboring cell is not lower than a preset fourth threshold. And the time that is not lower than the preset fourth threshold continues for a preset third time, and determines that the measurement result of the neighboring cell meets the measurement reporting condition.

 The sending module 14 is specifically configured to report the measurement result of the neighboring cell with the highest priority to the network side if the measurement result of the multiple neighboring cells meets the measurement reporting condition.

 Each neighbor cell has a unique priority.

 The first system is a time division synchronous code division multiple access TD-SCDMA system, and the second system is a TD-SCDMA long term evolution TD-LTE system; or

 The first system is a TD-LTE system, and the second system is a TD-SCDMA system.

 Wherein, the modules of the device of the present invention may be integrated or integrated. The above modules can be combined into one module, or can be further split into multiple sub-modules.

 Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way. Based on this understanding, a form of software product is embodied, the computer software product being stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the present invention. The method described in the examples.

A person skilled in the art can understand that the drawing is only a schematic diagram of a preferred embodiment, The modules or processes in the figures are not necessarily required to practice the invention.

 Those skilled in the art can understand that the modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

 The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments. The above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

Rights request A priority-based measurement reporting method, comprising: when the user equipment performs measurement according to the priority of the serving cell in the first system and the priority of the neighboring cell in the second system, the user equipment Measuring the neighboring cell;  When the user equipment determines that the measurement result of the neighboring cell meets the measurement reporting condition, the user equipment reports the measurement result to the network side.  The method according to claim 1, wherein the user equipment performs the measurement according to the priority of the serving cell in the first system and the priority of the neighboring cell in the second system, and the method further includes:  The user equipment receives measurement configuration information from the network side, where the measurement configuration information carries the neighboring node, the area, and the corresponding priority information.  The method of claim 2, wherein the receiving, by the user equipment, the measurement configuration information from the network side includes:  The user equipment receives measurement configuration information from the network side through a system information block SIB message or a radio resource control RRC message.  The method according to claim 1, wherein the method further comprises: if the priority of the neighboring cell in the second system is greater than the priority of the serving cell in the first system, the user equipment Determining to perform measurement on the neighboring cell; or, if the priority of the neighboring cell in the second system is smaller than the priority of the serving cell in the first system, the user equipment determines according to the received power level of the serving cell The neighboring cell is measured or determined not to measure the neighboring cell.  The method according to claim 4, wherein the user equipment determines to measure the neighboring cell or determines that the neighboring cell is not measured according to the received power level of the serving cell, and includes:  If the received power level of the serving cell is not lower than a preset first threshold, the user equipment determines that the neighboring cell is not measured; or If the received power level of the serving cell is lower than a preset first threshold, the The user equipment determines to measure the neighboring cell.  The method according to claim 1, wherein the user equipment determines that the measurement result of the neighboring cell meets the measurement reporting condition, and includes:  If the received power level of the neighboring cell is not lower than the preset second threshold, and the time is not lower than the preset second threshold for a preset first time, the user equipment determines that the measurement result of the neighboring cell satisfies the measurement Reporting conditions; or,  If the received power level of the serving cell is lower than a preset third threshold, and the time is lower than the preset third threshold for a preset second time, the received power level of the neighboring cell is not lower than a preset fourth threshold. And the user equipment determines that the measurement result of the neighboring cell meets the measurement reporting condition, and the time is not lower than the preset fourth threshold.  The method of claim 1, wherein the user equipment reports the measurement result to the network side, including:  If the measurement result of the multiple neighboring cells satisfies the measurement reporting condition, the user equipment sends the measurement result of the neighboring cell with the highest priority to the network side.  8. The method of any of claims 1-7, wherein each neighboring cell has a unique priority.  The method according to any one of claims 1 to 7, wherein the first system is a time division synchronous code division multiple access TD-SCDMA system, and the second system is a TD-SCDMA long term evolution TD- LTE system; or,  The first system is a TD-LTE system, and the second system is a TD-SCDMA system.  A priority-based measurement reporting device, comprising: a first determining module, configured to perform measurement according to a priority of a serving cell in the first system and a priority of a neighboring cell in the second system;  a measuring module, configured to perform measurement on the neighboring cell;  a second determining module, configured to determine that the measurement result of the neighboring cell meets a measurement reporting condition;  The sending module is configured to report the measurement result to the network side. The device according to claim 10, further comprising: The receiving module is configured to receive measurement configuration information from the network side, where the measurement configuration information carries the neighboring cell and corresponding priority information.  12. Apparatus according to claim 11 wherein:  The receiving module is specifically configured to receive measurement configuration information from the network side by using a system information block SIB message or a radio resource control RRC message.  13. Apparatus according to claim 10 wherein:  The first determining module is specifically configured to determine, if the priority of the neighboring cell in the second system is greater than the priority of the serving cell in the first system, to measure the neighboring cell; or  If the priority of the neighboring cell in the second system is smaller than the priority of the serving cell in the first system, determining, according to the received power level of the serving cell, performing measurement on the neighboring cell or determining not to perform the neighboring cell measuring.  14. Apparatus according to claim 13 wherein:  The first determining module is specifically configured to: if the received power level of the serving cell is not lower than a preset first threshold, determine that the neighboring cell is not measured; or if the receiving cell has a low received power level After the first threshold is preset, it is determined that the neighboring cell is measured.  15. Apparatus according to claim 10 wherein:  The second determining module is specifically configured to: if the received power level of the neighboring cell is not lower than a preset second threshold, and not lower than a preset second threshold for a preset first time, determining the neighbor The measurement result of the cell satisfies the measurement reporting condition; or  If the received power level of the serving cell is lower than a preset third threshold, and the time is lower than the preset third threshold for a preset second time, the received power level of the neighboring cell is not lower than a preset fourth threshold. And the time that is not lower than the preset fourth threshold continues for a preset third time, and determines that the measurement result of the neighboring cell meets the measurement reporting condition.  16. Apparatus according to claim 10 wherein:  The sending module is specifically configured to report the measurement result of the neighboring cell with the highest priority to the network side if the measurement result of the multiple neighboring cells meets the measurement reporting condition. 17. Apparatus according to any of claims 10-16, wherein each neighbor The cell has a unique priority.  The device according to any one of claims 10 to 16, wherein the first system is a time division synchronous code division multiple access TD-SCDMA system, and the second system is a TD-SCDMA long term evolution TD- LTE system; or,  The first system is a TD-LTE system, and the second system is a TD-SCDMA system.