CN104145527A

CN104145527A - Cell measurement method, radio network controller and user equipment

Info

Publication number: CN104145527A
Application number: CN201380000117.3A
Authority: CN
Inventors: 徐小英; 陈东; 陈君
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-01-22
Filing date: 2013-01-22
Publication date: 2014-11-12
Also published as: WO2014113926A1

Abstract

Provided are a cell measurement method, a radio network controller and a user equipment. The method comprises: a user equipment receiving evaluation parameter information about a report event of a second carrier cell sent by a radio network controller, the evaluation parameter information about the report event comprising a signal quality threshold of a first carrier cell in which the user equipment is located; the user equipment measuring a signal of the first carrier cell;and if the signal quality of the first carrier cell meets the signal quality threshold indicated by the evaluation parameter information about the report event, the user equipment reporting a measurement report of the second carrier cell to the radio network controller.In the cell measurement method provided in the present invention, the radio network controller can determine the signal quality of an inter-frequency carrier according to the signal measurement result of an intra-frequency cell of the carrier in which the user equipment is located, thereby saving on electric power consumption of the user equipment, and improving the data transmission performance of the user equipment.

Description

CELL MEASUREMENT METHOD, RADIO NETWORK CONTROLLER AND USER EQUIPMENT

Cell measuring method, radio network controller and user equipment

Technical field

The present invention relates to communication technical field, more particularly to a kind of cell measuring method, radio network controller and user equipment.Background technology

Radio communication comes into the period that data service blast increases, and operator faces " providing higher network capacity " and " reduction is per bit transfer cost " dual-pressure simultaneously.Heterogeneous network（Abbreviation Hetnet) be the network being made up of together different size, the cell of type, such as macrocell, Microcell, picocell, Femto cell, the cell of remote radio form.By disposing macrocell and micro- class cell, 10 times of power system capacity can be provided into for traffic close quarters.

In the prior art, there is the macrocell of dual carrier and the Microcell of dual carrier, the Microcell covering on the carrier wave can be extended by reducing the transmit power of one of carrier wave, bigger system gain is obtained.However, in the above method, if the main plot of user equipment is on the carrier wave of drop power, the probability of alien frequencies switching can be increased, so as to increase the measurement that user equipment carries out alien-frequency district, increase the power consumption of user equipment, influence data transmission performance.The content of the invention

The embodiment of the present invention provides a kind of cell measuring method, radio network controller and user equipment, the problem of being existed in the prior art using different-frequency measure with solution.

In a first aspect, the embodiment of the present invention provides a kind of cell measuring method, including：

User equipment receives the assessment parameter information of the report event for the second carrier cell that radio network controller is sent, and the parameter information of assessing of the report event includes the signal quality thresholding of the first carrier cell residing for user equipment；

The user equipment is measured to the signal of the first carrier cell；

If the signal quality of the first carrier cell meets the signal quality thresholding assessed indicated by parameter information of the report event, the user equipment reports the measurement report of the second carrier cell to the radio network controller. In the first possible implementation of first aspect, the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

According to any one of the first possible implementation of first aspect, first aspect, in second of possible implementation：

The assessment parameter information of the report event indicates the signal quality thresholding of the first carrier by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

Second aspect, the embodiment of the present invention provides a kind of cell measuring method, including：

Radio network controller sends the assessment parameter information that event is reported in the second carrier cell to user equipment, and the assessment parameter information of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for the user equipment so that the user equipment is measured to the signal of the first carrier cell；

The radio network controller receives the measurement report for the second carrier cell that the user equipment is reported when the signal quality of the first carrier cell meets the signal quality thresholding indicated by the assessment parameter information of the report event.

In the first possible implementation of second aspect, the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

According to any one of the first possible implementation of second aspect, second aspect, in second of possible implementation：

The assessment parameter information of the report event indicates the first carrier signal quality thresholding by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

The third aspect, the embodiment of the present invention provides a kind of user equipment, including：

Receiving module, the assessment parameter information of the report event of the second carrier cell for receiving radio network controller transmission, the parameter information of assessing of the report event includes the signal quality thresholding of the first carrier cell residing for user equipment；

Measurement module, is measured for the signal to the first carrier cell；

Sending module, if the signal quality for the first carrier cell meets the signal quality thresholding assessed indicated by parameter information of the report event, the measurement report of the second carrier cell is reported to the radio network controller. In the first possible implementation of the third aspect, the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

According to any one of the first possible implementation of the third aspect, the third aspect, in second of possible implementation：

Fourth aspect, the embodiment of the present invention provides a kind of radio network controller, including：

Sending module, for sending the assessment parameter information that event is reported in the second carrier cell to user equipment, the assessment parameter information of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for the user equipment so that the user equipment is measured to the signal of the first carrier cell；

Receiving module, the measurement report for receiving the second carrier cell that the user equipment is reported when the signal quality of the first carrier cell meets the signal quality thresholding indicated by the assessment parameter information of the report event.

In the first possible implementation of fourth aspect, the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

According to any one of the first possible implementation of fourth aspect, fourth aspect, in second of possible implementation：

5th aspect, the embodiment of the present invention provides a kind of user equipment, including：

Receiver, the assessment parameter information of the report event of the second carrier cell for receiving radio network controller transmission, the parameter information of assessing of the report event includes the signal quality thresholding of the first carrier cell residing for user equipment；

Processor, is measured for the signal to the first carrier cell；

Transmitter, if the signal quality for the first carrier cell meets the signal quality thresholding assessed indicated by parameter information of the report event, the blunt announcement of the measurement 4 of the second carrier cell is reported to the radio network controller. In the first possible implementation of the 5th aspect, the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

According to any one of the 5th aspect, the first possible implementation of the 5th aspect, in second of possible implementation：

6th aspect, the embodiment of the present invention provides a kind of radio network controller, including：

Transmitter, for sending the assessment parameter information that event is reported in the second carrier cell to user equipment, the assessment parameter information of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for the user equipment so that the user equipment is measured to the signal of the first carrier cell；

Receiver, the measurement report for receiving the second carrier cell that the user equipment is reported when the signal quality of the first carrier cell meets the signal quality thresholding indicated by the assessment parameter information of the report event.

In the first possible implementation of the 6th aspect, the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

According to any one of the 6th aspect, the first possible implementation of the 6th aspect, in second of possible implementation：

Cell measuring method provided in an embodiment of the present invention, radio network controller and user equipment, issuing the second carrier cell to user equipment by radio network controller reports the assessment parameter information of event come the signal quality thresholding of the first carrier cell residing for instruction user equipment, user equipment is measured to the cell signal of first carrier, and the measurement report of the second carrier cell is reported to radio network controller when the signal quality of first carrier cell meets the signal quality thresholding indicated by the assessment parameter of report event, so as to which radio network controller can be according to the signal quality that alien frequencies carrier wave is determined to the common-frequency cell signal measurement result of carrier wave residing for user equipment, the power consumption of user equipment can be saved, improve customer equipment data transmission performance. Brief description of the drawings

The accompanying drawing used required in embodiment or description of the prior art does one and simply introduced, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the flow chart for the cell measuring method that the embodiment of the present invention one is provided；

Fig. 2 is the flow chart for the cell measuring method that the embodiment of the present invention two is provided；

Fig. 3 is the flow chart for the cell measuring method that the embodiment of the present invention three is provided；

Fig. 4 is the dual carrier coverage schematic diagram that the embodiment of the present invention three is provided；

Fig. 5 is the flow chart for the cell measuring method that the embodiment of the present invention four is provided；

Fig. 6 is the dual carrier coverage schematic diagram that the embodiment of the present invention four is provided；

Fig. 7 is the structural representation for the user equipment that the embodiment of the present invention five is provided；

Fig. 8 is the structural representation for the radio network controller that the embodiment of the present invention six is provided；Fig. 9 is the structural representation for the user equipment that the embodiment of the present invention seven is provided；

Figure 10 is the structural representation for the radio network controller that the embodiment of the present invention eight is provided.Embodiment is to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

The method of the present embodiment described herein is applied to the heterogeneous network of dual carrier, and the heterogeneous network can be made up of various communication systems, such as current 2G, 3G communication systems and next generation communication system, such as global system for mobile communications（GSM, Global System for Mobile communications), CDMA (CDMA, Code Division Multiple Access) system, time division multiple acess（TDMA, Time Division Multiple Access) system, WCDMA (WCDMA, Wideband Code Division Multiple Access Wireless), frequency Divide multiple access (FDMA, Frequency Division Multiple Addressing) system, OFDM (OFDMA, Orthogonal Frequency-Division Multiple Access) system, Single Carrier Frequency Division Multiple Access (SC-FDMA) system, GPRS（GPRS, General Packet Radio Service) system, Long Term Evolution (LTE, Long Term Evolution) system, and other such communication systems.

The user equipment being related in the application, can be that wireless terminal can also be catv terminal, wireless terminal can refer to the equipment for providing a user voice and/or data connectivity, portable equipment with wireless connecting function or other processing equipments for being connected to radio modem.Wireless terminal can be through wireless access network（For example, RAN, Radio Access Network) communicated with one or more core nets, wireless terminal can be mobile terminal, such as mobile phone（Or be " honeycomb " phone）With the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.^ mouthfuls of example, PCS (PCS, Personal Communication Service) phone, wireless phone, Session initiation Protocol（SIP) phone, WLL（WLL, Wireless Local Loop) stand, personal digital assistant（PDA, Personal Digital Assistant) etc. equipment.Wireless terminal is referred to as system, subscri er unit（Subscriber Unit), subscriber station（Subscriber Station), movement station（Mobile Station), mobile station（Mobile), distant station（Remote Station), access point（Access Point), remote terminal（Remote Terminal), access terminal（Access Terminal), user terminal（User Terminal), user agent（User Agent), user equipment (User Device) or subscriber's installation (User Equipment).

The radio network controller being related in the application can be base station（For example, access point）, can specifically refer in access network on interface in the air by one or more sectors and the equipment of wireless terminal communications.Base station can be used for IP packets mutually being changed the air frame received, and as the router between wireless terminal and the remainder of access network, the remainder of wherein access network may include Internet protocol（IP) network.Attribute management of the base station also tunable to air interface.For example, base station can be the base station in GSM or CDMA（BTS, Base Transceiver Station), can also be the base station in WCDMA（), NodeB it can also be the evolved base station in LTE（NodeB or eNB or e-NodeB, evolutional Node B), the application is not limited.

In addition, the terms " system " and " network " are often used interchangeably herein.The terms " and/or ", only a kind of incidence relation for describing affiliated partner, represents there may be three kinds of passes System, for example, Α and/or B, can be represented：Individualism A, while there is A and B, these three situations of individualism B.In addition, character "/" herein, typically represent forward-backward correlation object be it is a kind of " or " relation.

Fig. 1 is the flow chart for the cell measuring method that the embodiment of the present invention one is provided.The method that the present embodiment is provided relates generally to dual carrier scene, and dual carrier can each have identical or different area coverage.Cell in cell and the second carrier wave that can be on first carrier is user equipment service.Wherein, the cell on first carrier and the second carrier wave can be macrocell（Macro Cell), Microcell（Micro Cell), Kai cells（Pico Cell), milli W Kai cells（Femto Cell), the type such as the cell of RRH forms.For example：It can include that on macrocell and Microcell, the second carrier wave macrocell and Microcell can also be included on first carrier.As shown in figure 1, the cell measuring method of the present embodiment may include steps of：

S101 :User equipment receives the assessment parameter information of the report event for the second carrier cell that radio network controller is sent, and the parameter information of assessing of report event includes the signal quality thresholding of the first carrier cell residing for user equipment.

Wherein, first carrier is the main carrier where user equipment, and the second carrier wave refers to the carrier wave with first carrier alien frequencies.The parameter information of assessing of second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for user equipment.The cell information of first carrier cell can also be included, signal quality meets the information such as the duration of the signal quality thresholding.In addition, it can include the cell information of the second carrier cell.Cell information such as scrambling code information or cell ID etc..

Specifically, the signal quality thresholding is all cells being directed in first carrier.For example, if only one of which cell in first carrier, user equipment can be measured to the signal of the cell, and the measurement for sending the second carrier cell to radio network controller when the cell signal meets the signal quality thresholding is blunt accuses；If including two cells in first carrier, then user equipment can be measured respectively to the signal of the two cells respectively, it is possible to the blunt announcement of measurement 4 for sending the second carrier cell to radio network controller when the signal of any one cell meets signal quality thresholding.

Specifically, the signal quality thresholding can be signal-noise ratio threshold, and line loss threshold, signal intensity etc. reacts any one signalc threshold or the combination of multi-signal thresholding of cell signal situation.For example, the signal quality thresholding can be user equipment corresponding absolute threshold value of signal quality when being switched in the case that cell signal quality is poor, or the absolute threshold value of the signal quality add one setting offset；Or, the signal quality thresholding can also be a new same frequency event defined, and this is with the ginseng in frequency event Number can be：The absolute thresholding of Cell Individual Offset CIO, signal quality and signal hysteresis thresholding etc..

Specifically, when user equipment is in the cell of first carrier covering, and during in connection status, radio network controller can send the assessment parameter information of above-mentioned report event to the user equipment.Wherein, above-mentioned connection status can be the state that user equipment is being communicated with radio network controller, for example：The state such as call or online.

In addition, before the assessment parameter information for the report event that the second carrier cell that radio network controller is sent is received in user equipment, the ability of the signal quality of signal quality estimation alien frequencies adjacent area of the support that user equipment can be sent to radio network controller based on co-frequency cell, so that radio network controller judges user equipment and whether supports the ability, and then only to supporting the user equipment of the ability to issue above-mentioned measurement report event.

S102:User equipment is measured to the signal of first carrier cell.

Specifically, when user equipment is in the cell of first carrier covering, and during in signal connection status, the assessment parameter information of the report event of the second carrier cell of radio network controller transmission can be received, then, user equipment can be measured to the cell signal of first carrier.Wherein, above-mentioned connection status can be the state that user equipment is being communicated with radio network controller, for example：The state such as call or online.It can be that the signal of all cells in first carrier is measured that user equipment is measured to the cell signal of first carrier, i.e. user equipment can carry out signal measurement to main serving cell and with main serving cell intra-frequency cells.

S103 :If the signal quality of first carrier cell meets the signal quality thresholding assessed indicated by parameter information of report event, user equipment reports the measurement report of the second carrier cell to radio network controller.

Specifically, user equipment carries out common frequency measurement in the cell for be presently in first carrier, when measuring any one cell signal quality in first carrier and meeting the signal quality thresholding indicated by the assessment parameter of report event, then user equipment can send the measurement report of the second carrier cell to radio network controller, i.e., the signal quality of any one cell where the cell measurement reporting of second carrier wave can represent user equipment in first carrier is poor, signal quality thresholding is met, for example：Can be poor for all cell signal qualities on first carrier, thresholding is met, now, the signal of the second carrier cell preferably, can meet the normal communication of user equipment；Preferably, now, the signal quality of the second carrier cell is preferable for the signal quality of main plot either on first carrier.

In addition, radio network controller receives the measurement report of the second carrier cell of user equipment transmission Accuse, this report indicates that the signal quality of the second carrier cell meets the signal quality thresholding indicated by the assessment parameter of report event, alternatively, the measurement result of the signal quality of first carrier can be included in the measurement report of second carrier cell, the cell information of first carrier cell can also be included.

Alternatively, radio network controller can control the communication connection between user equipment and first carrier and/or the second carrier wave according to the measurement report of the second carrier cell.

Specifically, the signal quality situation of cell on the first carrier that radio network controller can be reflected according to the measurement report of the second carrier cell, such as, when the signal quality of first carrier cell is higher than certain thresholding, estimation user enters the coverage of the second carrier cell, user equipment and the communication connection of the cell in first carrier cell are kept, and configuration and/activation are carried out to the cell on the second carrier cell；Or, such as when the signal quality of first carrier cell is less than certain thresholding, estimation user leaves the coverage of the second carrier cell, user equipment and the communication connection of the cell on first carrier can be kept, and the cell on the second carrier wave is carried out to go to configure and/or deactivate；Or, when the signal quality of first carrier cell is less than certain thresholding, estimation user enters the coverage of the second carrier cell, the cell that radio network controller can also switch to user equipment on the second carrier wave from the cell on first carrier.

Wherein, the above-mentioned configuration operation being related to refers to that radio network controller sets up new link between user equipment and the second carrier cell, for example：Enter in the range of user equipment is individually covered from first carrier in first carrier and the common coverage of the second carrier wave, then radio network controller can be configured to the cell on the second carrier wave, the communication link set up between user equipment and the second carrier cell, so that in the case of link activation, user equipment can be communicated with the cell in the cell on first carrier and the second carrier wave simultaneously.Configuration operation is gone to refer to that radio network controller deletes the link connection between user equipment and some cell, for example, when user equipment enters out of first carrier and the common coverage of the second carrier wave in the range of first carrier is individually covered, radio network controller can carry out going configuration to the cell on the second carrier wave, delete the signal link on user equipment and the second carrier wave between cell and connect；Activation manipulation is to instigate certain link set up can use, and is connected for example, setting up signal link with some cell when user equipment, in the case of unactivated, this link or disabled, only enters line activating, user equipment just can normally be communicated by this link；Deactivating operation refers to disable link, i.e., the link connection that reservation user equipment has been set up with some cell, but forbids user equipment to be communicated by this link；Switching refers to the link connection for changing serving cell, i.e. deletion user equipment and current area, and is that user equipment sets up link company with another cell Connect and communicated, for example, user equipment is switched to the cell on the second carrier wave from the cell on first carrier.

Cell measuring method provided in an embodiment of the present invention, issuing the second carrier cell to user equipment by radio network controller reports the assessment parameter information of event come the signal quality thresholding of the first carrier cell residing for instruction user equipment, user equipment is measured to the cell signal of first carrier, and the measurement report of the second carrier cell is reported to radio network controller when the signal quality of first carrier cell meets the signal quality thresholding indicated by the assessment parameter of report event, so as to which radio network controller can be according to the signal quality that alien frequencies carrier wave is determined to the common-frequency cell signal measurement result of carrier wave residing for user equipment, the power consumption of user equipment can be saved, improve customer equipment data transmission performance.

Fig. 2 is the flow chart for the cell measuring method that the embodiment of the present invention two is provided.The method that the present embodiment is provided relates generally to dual carrier scene, and dual carrier can each have identical or different area coverage.Cell in cell and the second carrier wave that can be on first carrier is user equipment service.Wherein, the cell on first carrier and the second carrier wave can be macrocell（Macro Cell), Microcell（Micro Cell), W Kai cells（Pico Cell), milli W Kai cells（Femto Cell), remote radio heads（Remote Radio Head, abbreviation RRH) form the type such as cell.For example：It can include that on macrocell and Microcell, the second carrier wave macrocell and Microcell can also be included on first carrier.As shown in Fig. 2 the method for the present embodiment may include steps of：

S201 :Radio network controller sends the assessment parameter information that event is reported in the second carrier cell to user equipment, the parameter information of assessing of second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for user equipment, so that user equipment is measured to the signal of first carrier cell.

Specifically, the signal quality thresholding is all cells being directed in first carrier.For example, if only one of which cell in first carrier, user equipment can be measured to the signal of the cell, and the measurement for sending the second carrier cell to radio network controller when the cell signal meets the signal quality thresholding is blunt accuses；If including two cells in first carrier, user equipment can respectively to this two The signal of individual cell is measured respectively, it is possible to the blunt announcement of measurement 4 for sending the second carrier cell to radio network controller when the signal of any one cell meets signal quality thresholding.

Specifically, the signal quality thresholding can be signal power thresholding, and line loss threshold etc. reacts any one signalc threshold or the combination of multi-signal thresholding of cell signal situation.For example, the signal quality thresholding can be user equipment corresponding absolute threshold value of signal quality when being switched in the case that cell signal quality is poor, the such as threshold value of 1F events, wherein, 1F events are represented as the signal quality of the cell of user equipment service less than some thresholding；Either the absolute threshold value of the signal quality adds a setting offset, such as the threshold value of 1F events is plus an offset；Or, the signal quality thresholding can also be a new same frequency event defined, and this can be with the parameter in frequency event：The absolute thresholding of Cell Individual Offset CIO, signal quality and signal hysteresis thresholding etc..

In addition, before the assessment parameter information that radio network controller sends report event in the second carrier cell to user equipment, the ability of the signal quality of signal quality estimation alien frequencies adjacent area of the support of user equipment transmission based on co-frequency cell can be received, so that radio network controller judges user equipment and whether supports the ability, and then only to supporting the user equipment of the ability to issue above-mentioned measurement report event.

S202:Radio network controller receives the measurement report for the second carrier cell that user equipment is reported when the signal quality of first carrier cell meets the signal quality thresholding indicated by the assessment parameter information of report event.

Specifically, user equipment can be measured to the signal of all cells in first carrier, i.e., user equipment can carry out signal measurement to main serving cell and with main serving cell intra-frequency cells, when measuring any one cell signal quality in first carrier and meeting the signal quality thresholding indicated by the assessment parameter of report event, the measurement report that then user equipment can send second carrier cell to radio network controller is reported, i.e., the signal of any one cell where the measurement report of second carrier cell can represent user equipment in first carrier is satisfied by signal quality thresholding, for example：Can be poor for all cell signal qualities on first carrier, signal quality thresholding is met, now, the signal of the second carrier cell preferably, can meet the normal communication of user equipment；Preferably, now, the signal quality of the second carrier cell is preferable for the signal quality of main plot either on first carrier. Alternatively, the measurement result of the signal quality of first carrier can be included in the measurement report of second carrier cell, the cell information of first carrier cell can also be included.

Specifically, the signal quality situation of cell on the first carrier that radio network controller can be reflected according to the measurement report of the second carrier cell, user equipment and the communication connection of the cell on first carrier are kept, and configuration and/activation are carried out to the cell on the second carrier wave；Or, user equipment and the communication connection of the cell on first carrier can be kept, and the cell on the second carrier wave is carried out to go to configure and/or deactivate；Or, the cell that radio network controller can also switch to user equipment on the second carrier wave from the cell on first carrier.

Wherein, the above-mentioned configuration operation being related to refers to that radio network controller sets up new link between user equipment and the second carrier cell, for example：Enter in the range of user equipment is individually covered from first carrier in first carrier and the common coverage of the second carrier wave, then radio network controller can be configured to the cell on the second carrier wave, the communication link set up between user equipment and the second carrier cell, so that in the case of link activation, user equipment can be communicated with the cell in the cell on first carrier and the second carrier wave simultaneously.Configuration operation is gone to refer to that radio network controller deletes the link connection between user equipment and some cell, for example, when user equipment enters out of first carrier and the common coverage of the second carrier wave in the range of first carrier is individually covered, radio network controller can carry out going configuration to the cell on the second carrier wave, delete the signal link on user equipment and the second carrier wave between cell and connect；Activation manipulation is to instigate certain link set up can use, and is connected for example, setting up signal link with some cell when user equipment, in the case of unactivated, this link or disabled, only enters line activating, user equipment just can normally be communicated by this link；Deactivating operation refers to disable link, i.e., the link connection that reservation user equipment has been set up with some cell, but forbids user equipment to be communicated by this link；Switching refers to change serving cell, delete the link connection of user equipment and current area, and be that user equipment is set up link connection with another cell and communicated, for example, user equipment is switched to the cell on the second carrier wave from the cell on first carrier.

Cell measuring method provided in an embodiment of the present invention, issuing the second carrier cell to user equipment by radio network controller reports the assessment parameter information of event come the signal quality thresholding of the first carrier cell residing for instruction user equipment, user equipment is measured to the cell signal of first carrier, and The signal quality of one carrier cell reports the measurement report of the second carrier cell to radio network controller when meeting the signal quality thresholding indicated by the assessment parameter of report event, so as to which radio network controller can be according to the signal quality that alien frequencies carrier wave is determined to the common-frequency cell signal measurement result of carrier wave residing for user equipment, the power consumption of user equipment can be saved, customer equipment data transmission performance is improved.

Fig. 3 is the flow chart for the cell measuring method that the embodiment of the present invention three is provided, and Fig. 4 is the dual carrier coverage schematic diagram that the embodiment of the present invention three is provided.As shown in Fig. 3, present embodiments provide measurement report of the radio network controller according to the second carrier cell of user equipment to report, keep user equipment and the communication connection of the cell on first carrier, and the scene that the cell in the second carrier wave is configured and/or activated.

Present embodiments provide a kind of specific implement scene, user equipment is in dual carrier scene, wherein, the cell of first carrier includes first community, the cell of second carrier wave includes second community, and the coverage of first community is more than the coverage of second community.The scene can be with as shown in figure 4, include CELL1 (i.e. first community) and CELL2 (i.e. the 3rd cell), including CELL3 (i.e. second communities on the second carrier wave on first carrier）And CELL4.CEI 1 and CELL3 is macrocell, and CELL2 and CELL4 are cell.The user equipment current moon, good business cell was that CELL1, CELL1 and CELL3 timing are alignd, and the starting point for specifically referring to the frame of CELL1 and CELL3 main common signal channel is identical.Communication process between user equipment and radio network controller specifically can be as follows：

S301, radio network controller send the assessment parameter information that event is reported in the second carrier cell to user equipment, and the assessment parameter information of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for the user equipment so that the user equipment is measured to the signal of the first carrier cell.

Wherein, the parameter information of assessing of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for user equipment, you can to include cell CELL1 and/or CELL2 signal quality thresholding.The cell information of first carrier cell can also be included, signal quality meets the information such as the duration of the signal quality thresholding, cell CELL1 and/or CELL2 cell information can also be included, signal quality meets the duration of the signal quality thresholding.In addition, it can include the second carrier cell CELL3 cell information.Cell information such as scrambling code information or cell ID etc..

Specifically, the signal quality thresholding is all cells being directed in first carrier.Because the current serving cell of user equipment is CELL1, therefore, radio network controller determines the signal quality thresholding of all cells of the first carrier of user equipment first, that is, determines to meet in CELL3 coverages Cell CELLl and/or CELL2 signal quality thresholding when interior.Than mouth, CELL1 thresholding is A1, and the coverage that user equipment enters CELL3 is characterized when CELL1 signal quality is more than or equal to A1, and the coverage that user equipment leaves CELL3 is characterized when CELL1 signal quality is less than A1.

Specifically, the signal quality thresholding can be signal power thresholding, and line loss threshold etc. reacts any one signalc threshold or the combination of multi-signal thresholding of cell signal situation.For example, the signal quality thresholding can be user equipment corresponding absolute threshold value of signal quality when being switched in the case that cell CELL1 and/or CELL2 signal quality is poor, either the absolute threshold value of the signal quality adds a setting offset, can such as include following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

Specifically, when user equipment is in the cell CELL1 of first carrier covering, and during in connection status, radio network controller can send the assessment parameter information of above-mentioned report event to the user equipment.Wherein, above-mentioned connection status can be the state that user equipment is being communicated with radio network controller, for example：The state such as call or online.

S302, user equipment are measured to the cell signal of first carrier.

Specifically, user equipment can be measured to the signal of all cells in first carrier, i.e. user equipment can carry out signal measurement to cell CELL1 and CELL2.

If S303, the signal quality of first carrier cell meet the signal quality thresholding assessed indicated by parameter information of report event, user equipment reports the measurement report of the second carrier cell to radio network controller.

Specifically, user equipment carries out common frequency measurement in the cell CELLL1 for be presently in first carrier, when measuring any one cell in first carrier, i.e. when CELL1 or CELL2 signal quality meet the signal quality thresholding indicated by the assessment parameter of report event, for example：The signal quality of cell CELL1 or CELL2 on first carrier are poor, meet signal quality thresholding, the measurement report that now user equipment can send the second carrier cell to radio network controller is reported, and the measurement report is used to represent that first community CELL1 or the 3rd cell CELL2 signal to meet the signal quality thresholding assessed indicated by parameter information of above-mentioned report event.And now, the second carrier cell CELL3 signal preferably, can meet the normal communication of user equipment.

Alternatively, the measurement result of the signal quality of first carrier can be included in the measurement report of second carrier cell, the cell information of first carrier cell can also be included. 5304th, radio network controller judges whether the cell signal of first carrier is less than or equal to the first setting thresholding according to measurement report, is to perform S305, otherwise performs S306.

Specifically, cell CELL1 or CELL2 signal condition on the first carrier that radio network controller can be reflected according to the measurement report of the second carrier cell, to control the communication connection between the first ' area CELL1 of user equipment and first carrier and/or the second community CELL3 of the second carrier wave.Wherein, if first community CELL1 signals are less than or equal to the first setting thresholding, S305 is performed, if first community CELL1 signals are more than the first setting thresholding, S306 is performed.

Specifically, the first setting thresholding can need the absolute threshold value switched to add an offset again, such as the thresholding of 1F events is plus an offset for user equipment under normal circumstances when cell signal quality is excessively poor.Wherein, 1F events are represented as the signal quality of the cell of user equipment service less than some thresholding.The absolute threshold value can ensure to switch when cell signal quality residing for user equipment is excessively poor, and definitely threshold value adds an offset to also ensure that in the case where signal quality is not very poor again, the communication connection between user equipment and first carrier and/or the second carrier wave.

5305th, radio network controller keeps the communication connection of user equipment and first community, and deactivates and/or go to configure second community.

Specifically, due in cell coverage area, closer to edge, signal is poorer, therefore, assuming that user equipment is initially in the range of first community CELL1 and second community CELL3 collectively covers, if the cell CELL1 of first carrier of the radio network controller according to residing for the measurement report of the second carrier cell judges user equipment signal is less than or equal to the first setting thresholding, it can determine that the user equipment has collectively covered the edge of scope in first community CELL1 and second community CELL3, then the measurement report of the second carrier cell can continue to keep the communication connection of user equipment and first community, and determine as needed and deactivate and/or go configuration second community CELL3, so that user equipment no longer with second community_CELL3 is communicated.

5306th, the measurement report of the second carrier cell keeps the communication connection of user equipment and first community, and activates and/or configuration second community.

Specifically, assuming that user equipment initially only exist in first community CELL1 individually covering in the range of, if radio network controller judges that the cell signal of first carrier is more than the first setting thresholding according to the measurement report of the second carrier cell, it can determine that the user equipment has collectively covered the edge of scope in first community CELL1 and second community CELL3, then radio network controller can continue to keep the communication connection of user equipment and first community, and configure and/or activation second community CELL3, build The vertical communication link with second community CELL3, and can be in the case of activation, while being communicated with first community CELL1 and second community CELL3.

The cell measuring method that above-described embodiment is provided, issuing the second carrier cell to user equipment by radio network controller reports the assessment parameter information of event come the signal quality thresholding of the first carrier cell residing for instruction user equipment, user equipment is measured to the cell signal of first carrier, and the measurement report of the second carrier cell is reported to radio network controller when the signal quality of first carrier cell meets the signal quality thresholding indicated by the assessment parameter of report event, so as to which radio network controller can be according to the signal quality that alien frequencies carrier wave is determined to the common-frequency cell signal measurement result of carrier wave residing for user equipment, and then the communication connection between control user equipment and first carrier and/or the second carrier wave, the power consumption of user equipment can be saved, improve customer equipment data transmission performance.

Fig. 5 is the flow chart for the cell measuring method that the embodiment of the present invention four is provided, and Fig. 6 is the dual carrier coverage schematic diagram that the embodiment of the present invention four is provided.As shown in figure 5, present embodiments providing measurement report of the radio network controller according to the second carrier cell of user equipment to report, user equipment is switched to the scene of cell on the second carrier wave from the cell on first carrier.

Present embodiments provide a kind of specific implement scene, user equipment is in dual carrier scene, wherein, the cell of first carrier includes first community, the cell of second carrier wave includes second community, and the coverage of first community is less than the coverage of second community.The scene including CEI K can be second community CEI 2 on the second carrier wave with as shown in fig. 6, include CELL3 (i.e. first community) and CELL4 (i.e. the 3rd cell) on first carrier.CEI 1 and CEI 3 is macrocell, and CEI 2 and CELL4 are cell.The user equipment current moon, good business cell was that CELL3, CELL 1 and CELL3 timing are alignd, and the starting point for specifically referring to the frame of CELL1 and CELL3 main common signal channel is identical.Communication process between user equipment and radio network controller specifically can be as follows：

S501, radio network controller send the assessment parameter information that event is reported in the second carrier cell to user equipment, and the assessment parameter information of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for the user equipment so that the user equipment is measured to the signal of the first carrier cell.

Specifically, because the current main plot of user equipment is in CELL3, therefore, radio network controller determines the event evaluation thresholding of the measurement report of all cells of the first carrier of user equipment first, that is, determines the event evaluation thresholding of the measurement report of CELL3 and CELL4 cells.

Wherein, the parameter information of assessing of the second carrier cell report event includes the residing for user equipment The signal quality thresholding of one carrier cell, you can to include cell CELL3 and CELL4 signal quality thresholding.The cell information of first carrier cell can also be included, signal quality meets the information such as the duration of the signal quality thresholding, i.e., can also include cell CELL3 and CELL4 cell information, and signal quality meets the duration of the signal quality thresholding.In addition, it can include the second carrier cell CELL1 cell information.Such as 4 outstanding yards information of cell information or cell ID etc..

Specifically, the signal quality thresholding is all cells being directed in first carrier.Because the current serving cell of user equipment is CELL3, therefore, radio network controller determines the signal quality thresholding of all cells of the first carrier of user equipment first, that is, determines CELL3 and CELL4 signal quality thresholding.

Specifically, the signal quality thresholding can be signal power thresholding, and line loss threshold etc. reacts any one signalc threshold or the combination of multi-signal thresholding of cell signal situation.For example, the signal quality thresholding can be user equipment corresponding absolute threshold value of signal quality when being switched in the case that cell CELL3 and CELL4 signal quality is poor, the such as threshold value of 1F events, wherein, 1F events are represented as the signal quality of the cell of user equipment service less than some thresholding；Either the absolute threshold value of the signal quality adds a setting offset, such as the threshold value of 1F events is plus an offset；The threshold parameter that either new events are included, above-mentioned threshold parameter can include following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

Specifically, when user equipment is in the cell CELL3 of first carrier covering, and during in connection status, radio network controller can send the assessment parameter information of above-mentioned report event to the user equipment.Wherein, above-mentioned connection status can be the state that user equipment is being communicated with radio network controller, for example：The state such as call or online.

5502nd, user equipment is measured to the cell signal of first carrier.

Specifically, user equipment can be measured to the signal of all cells in first carrier, i.e. user equipment can carry out signal measurement to cell CELL3 and CELL4.

If the 5503, the signal quality of first carrier cell meets the signal quality thresholding assessed indicated by parameter information of report event, user equipment reports the measurement report of the second carrier cell to radio network controller.

Specifically, user equipment carries out common frequency measurement in the cell CELLL3 for be presently in first carrier, when the signal matter for measuring any one cell in first carrier, i.e. CELL3 or CELL4 When amount meets the signal quality thresholding indicated by the assessment parameter of report event, for example：The signal quality of cell CELL3 or CELL4 on first carrier are poor, meet signal quality thresholding, the measurement report that now user equipment can send the second carrier cell to radio network controller is reported, and the measurement report is used to represent that first community CELL3 or the 3rd cell CELL4 signal to meet the signal quality thresholding assessed indicated by parameter information of above-mentioned report event.And now, the second carrier cell CELL1 signal preferably, can meet the normal communication of user equipment.

Alternatively, the measurement result of the signal quality of first carrier can be included in the measurement report of second carrier cell, the cell information of first carrier cell can also be included.

S504, radio network controller judge that the cell signal of first carrier is less than the second setting thresholding according to measurement report, then user equipment is switched to second community by radio network controller from first community.

Specifically, if radio network controller judges that the cell CELL3 of first carrier signal is less than the second setting thresholding according to the measurement report of the second carrier cell, user equipment is switched to second community CELL1 by radio network controller from the first ' area CELL3.

Wherein, the absolute threshold value that the second setting thresholding can switch for signal quality in the case of very poor.User equipment carries out common frequency measurement in the cell CELL3 of first carrier, when in the homogeneous-frequency adjacent-domain for finding CELL3, it such as may include the 3rd cell CELL4, the signal quality for not having any cell can meet the normal communication of user equipment communication, now, it can continue to judge whether the cell signal of first carrier is less than the second setting thresholding, judge whether first community CELL3 signal is less than the second setting thresholding, if less than, then user equipment from first community CELL3 can be switched to second community CELL1 by radio network controller, so that user equipment is directly communicated with second community CELL1.

Fig. 7 is the structural representation for the user equipment that the embodiment of the present invention five is provided.As shown in fig. 7, The radio network controller can include：Receiving module 701, measurement module 702 and sending module 703.Specifically, receiving module 701 is used for the assessment parameter information for receiving the report event of the second carrier cell of radio network controller transmission, and the parameter information of assessing of report event includes the signal quality thresholding of the first carrier cell residing for user equipment；

Measurement module 702 is used to measure the signal of first carrier cell；

If sending module 703 meets the signal quality thresholding assessed indicated by parameter information of report event for the signal quality of first carrier cell, the measurement report of the second carrier cell is reported to radio network controller.

The user equipment of the present embodiment, can be used for the technical scheme for performing embodiment of the method shown in Fig. 1, and its implementing principle and technical effect is similar, and here is omitted.

On the basis of above-described embodiment, alternatively, signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

Alternatively, the assessment parameter information of report event indicates the signal quality thresholding of first carrier by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

The user equipment of the present embodiment, can be used for the technical scheme for performing embodiment of the method shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, and its implementing principle and technical effect is similar, and here is omitted.

Fig. 8 is the structural representation for the radio network controller that the embodiment of the present invention six is provided.As shown in Fig. 8, the radio network controller can include：Sending module 801 and receiving module 802.

Wherein, sending module 801 is used to send the assessment parameter information that event is reported in the second carrier cell to user equipment, and the assessment parameter information of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for user equipment so that user equipment is measured to the signal of first carrier cell；

Receiving module 802 is used for the measurement report for receiving the second carrier cell that user equipment is reported when the signal quality of first carrier cell meets the signal quality thresholding indicated by the assessment parameter information of report event.

The radio network controller of the present embodiment, can be used for the technical scheme for performing embodiment of the method shown in Fig. 2, and its implementing principle and technical effect is similar, and here is omitted.

On the basis of above-described embodiment, alternatively, signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold. Alternatively, the assessment parameter information of report event indicates first carrier signal quality thresholding by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

The radio network controller of the present embodiment, can be used for the technical scheme for performing embodiment of the method shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, and its implementing principle and technical effect is similar, and here is omitted.

Fig. 9 is the structural representation for the user equipment that the embodiment of the present invention seven is provided.As shown in figure 9, the radio network controller can include：Receiver 901, processor 902 and transmitter 903.

Receiver 901 is used for the assessment parameter information for receiving the report event of the second carrier cell of radio network controller transmission, and the parameter information of assessing of report event includes the signal quality thresholding of the first carrier cell residing for user equipment；

Processor 902 is used to measure the signal of first carrier cell；

If transmitter 903 meets the signal quality thresholding assessed indicated by parameter information of report event for the signal quality of first carrier cell, the measurement report of the second carrier cell is reported to radio network controller.

Figure 10 is the structural representation for the radio network controller that the embodiment of the present invention eight is provided.As shown in Fig. 8, the radio network controller can include：Transmitter 1 11 and receiver 112.

Wherein, transmitter 1 11 is used to send the assessment parameter information that event is reported in the second carrier cell to user equipment, and the assessment parameter information of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for user equipment so that user equipment is measured to the signal of first carrier cell；

Receiver 112 is used to receive signal quality satisfaction report thing of the user equipment in first carrier cell The measurement report of the second carrier cell reported during signal quality thresholding indicated by the assessment parameter information of part.

Alternatively, the assessment parameter information of report event indicates first carrier signal quality thresholding by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, foregoing program can be stored in a computer read/write memory medium, the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims

Claims

1st, a kind of cell measuring method, it is characterised in that including：

User equipment receives the assessment parameter information of the report event for the second carrier cell that radio network controller is sent, and the parameter information of assessing of the report event includes the signal quality thresholding of the first carrier cell residing for user equipment；

The user equipment is measured to the signal of the first carrier cell；

If the signal quality of the first carrier cell meets the signal quality thresholding assessed indicated by parameter information of the report event, the user equipment reports the measurement report of the second carrier cell to the radio network controller.

2nd, the method according to claim 1, it is characterised in that the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

3rd, method according to claim 1 or 2, it is characterised in that the assessment parameter information of the report event indicates the signal quality thresholding of the first carrier by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

4th, a kind of cell measuring method, it is characterised in that including：

Radio network controller sends the assessment parameter information that event is reported in the second carrier cell to user equipment, the parameter information of assessing of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for the user equipment, so that the user equipment is measured to the signal of the first carrier cell；

The radio network controller receives the measurement report for the second carrier cell that the user equipment is reported when the signal quality of the first carrier cell meets the signal quality thresholding indicated by the assessment parameter information of the report event.

5th, method according to claim 4, it is characterised in that the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

6th, the method according to claim 4 or 5, it is characterised in that the assessment parameter information of the report event indicates the first carrier signal quality thresholding by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

7th, a kind of user equipment, it is characterised in that including： Receiving module, the assessment parameter information of the report event of the second carrier cell for receiving radio network controller transmission, the parameter information of assessing of the report event includes the signal quality thresholding of the first carrier cell residing for user equipment；

Measurement module, is measured for the signal to the first carrier cell；

Sending module, if the signal quality for the first carrier cell meets the signal quality thresholding assessed indicated by parameter information of the report event, the measurement report of the second carrier cell is reported to the radio network controller.

8th, the user equipment according to claim 7, it is characterised in that the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

9th, the user equipment according to claim 7 or 8, it is characterised in that the assessment parameter information of the report event indicates the signal quality thresholding of the first carrier by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

10th, a kind of radio network controller, it is characterised in that including：

Sending module, for sending the assessment parameter information that event is reported in the second carrier cell to user equipment, the assessment parameter information of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for the user equipment so that the user equipment is measured to the signal of the first carrier cell；

Receiving module, the measurement report for receiving the second carrier cell that the user equipment is reported when the signal quality of the first carrier cell meets the signal quality thresholding indicated by the assessment parameter information of the report event.

11, radio network controller according to claim 10, it is characterised in that the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

12nd, the radio network controller according to claim 10 or 11, it is characterised in that the assessment parameter information of the report event indicates the first carrier signal quality thresholding by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

13rd, a kind of user equipment, it is characterised in that including：

Receiver, the report event of the second carrier cell for receiving radio network controller transmission Parameter information is assessed, the parameter information of assessing of the report event includes the signal quality thresholding of the first carrier cell residing for user equipment；

Processor, is measured for the signal to the first carrier cell；

Transmitter, if the signal quality for the first carrier cell meets the signal quality thresholding assessed indicated by parameter information of the report event, the measurement report of the second carrier cell is reported to the radio network controller.

14th, the user equipment according to claim 13, it is characterised in that the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

15th, the user equipment according to claim 13 or 14, it is characterised in that the assessment parameter information of the report event indicates the signal quality thresholding of the first carrier by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.

16th, a kind of radio network controller, it is characterised in that including：

Transmitter, for sending the assessment parameter information that event is reported in the second carrier cell to user equipment, the assessment parameter information of the second carrier cell report event includes the signal quality thresholding of the first carrier cell residing for the user equipment so that the user equipment is measured to the signal of the first carrier cell；

Receiver, the measurement report for receiving the second carrier cell that the user equipment is reported when the signal quality of the first carrier cell meets the signal quality thresholding indicated by the assessment parameter information of the report event.

17th, radio network controller according to claim 16, it is characterised in that the signal quality thresholding includes following at least one thresholding：Signal-noise ratio threshold, signal strength threshold and line loss threshold.

18th, the radio network controller according to claim 16 or 17, it is characterised in that the assessment parameter information of the report event indicates the first carrier signal quality thresholding by following at least one parameter：Lag parameter, lag parameter offset, threshold parameter, threshold parameter offset, the offset of cell specific offset and cell specific offset.