CN1921678A - Different-frequency cell/different system identification and measurement result reporting method - Google Patents

Abstract

The invention discloses a different-frequency cell/different-system identification method, which is used for identifying a new different-frequency cell/different system by an FDD terminal receiving MBMS PTM service and in the CELL_FACH state, wherein the terminal can identify the new different-frequency cell/system after determining During the identification time of the inter-frequency cell/inter-system, ensure that the demodulation performance requirements for the received MBMS are met. Correspondingly, the present invention also discloses a method for reporting the measurement results of inter-frequency cells/different systems, wherein the terminal ensures that the solution to the received MBMS is met during the process of determining the measurement cycle that can complete the measurement result reporting. tune performance requirements. The present invention can enable the terminal to complete the identification process of different frequency cells/different systems and report the corresponding measurement results obtained by measuring the different frequency cells/different systems to the terminal high level while ensuring the demodulation performance of the received MBMS .

Description

Different frequency cell/different system identification and measurement result reporting method

technical field

The present invention relates to the terminal inter-frequency measurement processing technology in the third generation mobile communication system (3G, The 3rd Generation), in particular to a method for identifying inter-frequency cells/different systems and reporting measurement results.

Background technique

Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) is a third-generation mobile communication system using WCDMA air interface technology, mainly developed in the WCDMA/GSM global standardization organization 3GPP.

Among them, in the 3GPP UMTS standard, according to whether the radio resource control (RRC, Radio Resource Control) connection is established, the user terminal can be divided into two types: the idle (Idle) mode and the RRC connection (Connected) mode: among them, the user terminal is not connected to the UMTS Universal Terrestrial Radio Access The user terminal that establishes an RRC connection in the network (UTRAN, Universal Terrestrial Radio Access Network) is in the Idle mode, and the user terminal in this mode can only be distinguished by the non-access stratum (NAS, Non-Access Stratum) identifier, such as through the international mobile The station identification number (IMSI, International Mobile subscriber identity) to distinguish; wherein the user terminal that has established an RRC connection with UTRAN is in the RRCConnected mode, and the user terminal in this mode is assigned a wireless network temporary identity (RNTI, Radionetwork temporary identity) as The identification of the user terminal on the common transmission channel.

For the user terminal in RRC Connected mode, the user terminal can be divided into different states according to the level of RRC connection and the type of transmission channel that the user terminal can use: among them, the user terminal in the CELL_PCH state, CELL_FACH state and CELL_DCH state is at the cell level It can be distinguished, and user terminals in the URA_PCH state can be distinguished at the UTRAN Register Area (URA, UTRAN RegisterArea) level. Among them, the user terminal in the CELL_DCH state is assigned a dedicated physical channel, and the user terminal can use a dedicated transport channel and a shared channel and their combination; the user terminal in the CELL_FACH state must continuously monitor a common transport channel (FACH, Forward Access) in the downlink Channel), the default public channel (RACH, ReverseAccess Channel) is allocated in the uplink; the user terminal in the CELL_PCH and URA_PCH state adopts the discontinuous reception (DRX, Discontinuous Reception) mode through the relevant paging indicator channel (PICH, PageIndicator Channel ) monitors a paging channel (PCH, Page Channel), and the user terminals in these two states do not have any uplink activity.

In the 3GPP UMTS standard, when the user terminal is in different modes and states, it needs to measure different frequency cells or different systems according to the received system information and the receiving quality of the cell it is in, so as to perform cell reselection, handover and other processing. Among them, the user terminals in the idle, CELL_PCH, URA_PCH and CELL_FACH states are triggered by the measurement of different frequency/different systems by the received system information and the receiving quality of the current cell; The trigger condition for system measurement is the measurement control information issued by the system. Generally, for a user terminal without dual receivers, since it cannot support receiving and decoding signals on two different frequencies at the same time, the user terminal will interrupt the signal in the current cell during the inter-frequency/different-system measurement. take over.

In order to effectively utilize the resources of the mobile communication network, the third generation mobile communication system introduces the concept of multicast and broadcast. The multicast and broadcast service is a technology to transmit the same data from one data source to multiple targets. Thus, the WCDMA/GSM global standardization organization 3GPP proposed Multimedia Broadcast/Multicast Service (MBMS, Multimedia Broadcast/Multicast Service). The so-called MBMS is to provide a data source in a mobile communication network to send the same data to multiple users. Multi-point services to realize network resource sharing and improve the utilization rate of network resources, especially the utilization rate of air interface resources.

The data transmission mode of MBMS service between user terminal (UE, User Equipment) and UTRAN can be divided into two kinds: point-to-point (PTP, Point to Point) mode and point-to-multipoint (PTM, Point to Multipoint) mode. Among them, the PTP mode is used in the multicast mode of MBMS, and the user terminal in the RRC connection mode in the multicast mode receives control information through a dedicated control channel (DCCH, Dedicated ControlChannel) and receives data through a dedicated traffic channel (DTCH, Dedicated TrafficChannel). information. The PTM mode is used in the broadcast or multicast mode of MBMS. In this mode, the user terminal receives data information through the MBMS point-to-multipoint traffic channel (MTCH, MBMS point-to-multipoint Traffic Channel), and controls the data through the MBMS point-to-multipoint traffic channel. The channel (MCCH, MBMS point-to-multipoint Control Channel) receives control information.

Each cell supervised by the user terminal can be divided into the following three categories:

1) Active set cells: user terminal information is sent in these cells; the user terminal only measures the active set cells included in the cell information list;

2) Supervision set cells: cells not included in the active set cells but included in the cell information list belong to the supervision set cells;

3) Cells in the detection set: cells that are neither included in the cell information list nor in the cells in the active set, but can be detected by the user terminal belong to the cells in the detection set.

When the user terminal in the CELL_FACH state performs inter-frequency/different-system measurement for cell reselection, it locates a frame (SFN, system frame number) that satisfies the following formula, and performs inter-frequency/different system in the frame that satisfies the formula Measurement:

SFN div N＝C_RNTI mod M_REP+n×M_REP (Formula 1)

Among them:

N represents the TTI of the FACH with the maximum transmission time interval (TTI, Transmission Timing Interval) on the Secondary Common Control Physical Channel (SCCPCH, Secondary Common Control Physical Channel) monitored by the user terminal, which carries the non-MBMS logical channel, divided by 10ms;

M_REP represents the measurement interval cycle period, M_REP= ^2k ; from the above formula, the repetition period of the measurement time of an N frame is N×M_REP frame; where k is the FACH measurement interval cycle period coefficient, which can be included in the system information 11 or 12 Read in the information element "FACH measurement occasion info";

C_RNTI (cell radio network temporary identity) is the C-RNTI value of the UE;

n=0, 1, 2... as long as SFN is below its maximum value.

During the inter-frequency/different-system measurement time that satisfies Formula 1, the user terminal will continuously measure the identified inter-frequency cells/different-system cells, and at the same time search for new inter-frequency cells indicated in the measurement control information issued by UTRAN Cell/Different system cell.

In existing standards, the process of identifying a new inter-frequency cell by a frequency division duplex (FDD) terminal receiving MBMS PTM service is as follows:

(1) The user terminal receives the measurement control information issued by the UTRAN, reads the inter-frequency cell information indicated in the measurement control information, and finds that there is an unidentified inter-frequency cell;

(2) The user terminal detects an unidentified inter-frequency cell (the user terminal works on the frequency in the new inter-frequency cell indicated by the measurement control information, and if it finds that the received signal on this frequency is strong enough, it is considered to be detected this inter-frequency cell);

(3) The user terminal recognizes the above-mentioned detected inter-frequency cell within the identification time T _{identify,inter} calculated by the following formula:

$T_{\mathrm{identify}.\mathrm{inter}}=\mathrm{Ceil}\left\{\frac{T_{\mathrm{basic}\_\mathrm{identify}\_\mathrm{FDD}.\mathrm{inter}}}{T_{\mathrm{InterFACH}}}\right\}\&Center\; Dot;T_{\mathrm{meas}}\&Center\; Dot;N_{\mathrm{Freq},\mathrm{FDD}}\mathrm{ms}$ (Formula 2)

In the above formula:

T _{basic_identify_FDD} , inter=800ms, is the maximum allowable time for the user terminal to identify a new inter-frequency cell;

N _{Freq, FDD} is the number of FDD frequencies contained in the inter-frequency cell information list in the measurement control information;

T _meas ＝[(N _FDD +N _TDD +N _GSM )·N _TTI ·M_REP·10] (Formula 3)

where in Equation 3:

N _TTI is equal to N in Formula 1, and M_REP refers to the explanation in Formula 1;

_NFDD is equal to 0 or 1, if there is an FDD inter-frequency cell in the adjacent cell information list, then _NFDD = 1, otherwise _NFDD = 0;

N _TDD is equal to 0 or 1, if there is a TDD inter-frequency cell in the adjacent cell information list, then N _TDD =1, otherwise N _TDD =0;

N _GSM is equal to 0 or 1, if there is a GSM inter-frequency cell in the adjacent cell information list, then N _GSM =1, otherwise N _GSM =0;

T _{Inter FACH} =( _NTTI ×10−2×0.5)ms, where N _TTI is equal to N in formula 1.

(4) The user terminal identifies the newly identified inter-frequency cell as an identified inter-frequency cell in the cell information list stored by itself.

Among them, the FDD terminal receiving the MBMS PTM service performs the common pilot channel (CPICH, Common Pilot Channel) measurement process on the inter-frequency cell as follows:

(1) The user terminal receives the measurement control information or system broadcast information sent by the UTRAN, and triggers the CPICH measurement of the inter-frequency cell;

(2) The physical layer of the user terminal reports the measurement result to the upper layer within the measurement period T _{Measurement, Inter} calculated by the following formula:

${\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; measurement\; inter</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; Max</span>}<span\; class="notranslate">\; \{</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; Period</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; Inter</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; Ceil</span>}<span\; class="notranslate">\; \{</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; basic</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; FDD</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; inter</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; InterFACH</span>}}}<span\; class="notranslate">\; \}</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; Freq</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; FDD</span>}}<span\; class="notranslate">\; \}</span>$

(Formula 4)

In the formula:

T _{basic_measurement_FDD, inter} = 50ms;

T _{Measurement_Period, Inter} =480ms;

For other parameters, refer to the corresponding explanations in Formula 2 and Formula 3 above.

(3) The upper layer of the user terminal uses the measurement result reported by the physical layer for an internal algorithm (for example, the measurement result can be used as an input parameter of a cell reselection algorithm) or reports it to a radio network controller (RNC, RadioNetwork Controller).

However, in actual application, when an FDD terminal receiving MBMS PTM service identifies a new inter-frequency cell and performs CPICH measurement on an inter-frequency cell, the user terminal may not be able to use the formula 1 to ensure the demodulation performance requirements of MBMS. The entire inter-frequency measurement time obtained is used for inter-frequency measurement, and only part of the inter-frequency measurement time can be used for inter-frequency measurement. However, the formula 2 used to obtain the identification time T _{identify, inter} for the user terminal to identify a new inter-frequency cell, and the measurement period T _{Measurement, Inter} formula 4 used to obtain the measurement result reported by the physical layer of the user terminal to the upper layer The parameter T _{Inter FACH} =(N _TTI ×10−2×0.5)ms in the parameter indicates that the user terminal shall use the entire inter-frequency measurement time calculated according to formula 1 to perform inter-frequency measurement processing. This can lead to the following problems:

If the user terminal identifies a new inter-frequency cell within the identification time T _{identify, Inter} calculated by formula 2, and reports the CPICH measurement result of the inter-frequency cell to the upper layer within the measurement period T _{Measurement, Inter} calculated by formula 4, Then the user terminal will use the entire inter-frequency measurement time calculated according to formula 1 to perform inter-frequency measurement, thereby causing the user terminal to reduce the demodulation performance of the received MBMS;

If the user terminal uses part of the inter-frequency measurement time calculated according to formula 1 to perform inter-frequency measurement in order to ensure the demodulation performance of the received MBMS, the user terminal may not be able to perform inter-frequency measurement within the identification time T _{identify,inter} calculated according to formula 2 Even if a new inter-frequency cell is identified, the CPICH measurement result of the inter-frequency cell cannot be reported to the upper layer within the measurement period T _{Measurement, Inter} calculated according to formula 4.

In the above process, the FDD terminal receiving the MBMS PTM service and in the CELL_FACH state identifies the WCDMA TDD cell of the different system and receives the signal code power (PCCPCH, Primary Common Control Physical Channel) of the TDD cell of the different system ( The reporting process of RSCP (Received Signal Code Power) measurement results also has the same technical defect.

In the existing standard, when an FDD terminal receiving MBMS PTM service identifies a new WCDMA TDD cell of a different system detected in the supervision set, it is required to _{identify the different system WCDMA TDD cell within the T identify} calculated by the following formula. System WCDMA TDD cell:

$T_{\mathrm{identify},\mathrm{TDD}}=\mathrm{Max}\{5000,\mathrm{Ceil}\{\frac{T_{\mathrm{basic}\_\mathrm{identify\; tify}\_\mathrm{TDD},\mathrm{inter}}}{T_{\mathrm{Inter\; FACH}}}\}\&Center\; Dot;T_{\mathrm{meas}}\&Center\; Dot;N_{\mathrm{Freq},\mathrm{TDD}}\}\mathrm{ms}$ (Formula 5)

Where T _{basic_identify_TDD, inter} = 800ms;

N _{Freq, TDD} is the number of TDD frequencies contained in the inter-frequency cell information list in the measurement control information;

For other parameters, please refer to the above explanations of formula (2) and formula (3).

And the physical layer of the user terminal is required to report the PCCPCH RSCP measurement results of different system WCDMA TDD cells to the upper layer within the measurement period T _Measurement calculated by the following formula:

$T_{\mathrm{measurement},\mathrm{TDD}}=\mathrm{Max}\{T_{\mathrm{Measurement}\_\mathrm{Period}\_\mathrm{TDD}},2\&Center\; Dot;T_{\mathrm{meas}},\mathrm{Ceil}\{\frac{T_{\mathrm{basic}\_\mathrm{measurement}\_\mathrm{TDD},\mathrm{inter}}}{T_{\mathrm{InterFACH}}}\}\&Center\; Dot;T_{\mathrm{meas}}\&Center\; Dot;N_{\mathrm{Freq},\mathrm{TDD}}\}$ (Formula 6)

in:

T _{basic_measurement_TDD, inter} = 50ms;

T _{Measurement_Period_TDD, inter} = 480ms;

For other parameters, refer to the corresponding explanations in Formula 2 and Formula 3 above.

In this way, the following problems also exist accordingly:

If the user terminal recognizes a new WCDMA TDD cell of a different system within the time _{Tidentify, TDD} calculated by Formula 5, the PCCPCH RSCP of the WCDMA TDD cell of a different system will be measured within the measurement period T _{Measurement, TDD} calculated by Formula 6 When the result is reported to the upper layer, the user terminal will use the entire different-system measurement time calculated according to formula 1 to perform different-system measurement, thereby causing the user terminal to reduce the demodulation performance of the received MBMS;

If the user terminal uses part of the different-system measurement time calculated according to formula 1 to perform inter-system measurement in order to ensure the demodulation performance of the received MBMS, the user terminal may not be able to perform the inter-system measurement within the identification time _{Tidentify, TDD} calculated according to formula 5 Even if a new different-system WCDMA TDD cell is identified, the PCCPCH RSCP measurement result of the different-system WCDMA TDD cell cannot be reported to the upper layer within the measurement period T _{Measurement, TDD} calculated according to formula 6.

Contents of the invention

The first problem to be solved by the present invention is to propose a different-frequency cell/different-system identification method, so that the terminal can also complete the identification process of the different-frequency cell/different system while ensuring the demodulation performance of the received MBMS.

The second problem to be solved by the present invention is to propose a method for reporting the measurement results of different frequency cells/different systems, so that the terminal can also complete the reporting of different frequency cells/different system while ensuring the demodulation performance of the received MBMS. The corresponding measurement results obtained by the system are reported to the upper layer of the terminal.

In order to solve the above-mentioned first problem, the technical scheme proposed by the present invention is as follows:

A method for identifying a different-frequency cell/different system, used to identify a new different-frequency cell/different system for an FDD terminal receiving MBMS PTM services and in the CELL_FACH state, wherein the terminal can identify a new different-frequency cell after determining During the identification time of different systems, ensure that the demodulation performance requirements for the received MBMS are met.

The identification time determined by the terminal is calculated by the following formula:

${\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; identify</span>}<span\; class="notranslate">\; .</span>\mathrm{<span\; class="notranslate">\; inter</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; Ceil</span>}<span\; class="notranslate">\; \{</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; basic</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; identify</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; FDD</span>}<span\; class="notranslate">\; .</span>\mathrm{<span\; class="notranslate">\; inter</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Inter</span>}}}<span\; class="notranslate">\; \}</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; Freq</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; FDD</span>}}\mathrm{<span\; class="notranslate">\; ms</span>}$

In the formula, T _{identify, inter} represents the identification time used to identify the inter-frequency cell;

T _{basic_identify_FDD, inter} =800ms, is the maximum allowable time for the terminal to identify inter-frequency cells;

N _{Freq, FDD} is the number of FDD frequencies contained in the inter-frequency cell information list in the measurement control information issued by UTRAN;

T _meas ＝[(N _FDD +N _TDD +N _GSM )·N _TTI ·M_REP·10]

Wherein _NTTI is the transmission time interval of the forward access channel with the maximum transmission time interval divided by 10ms on the auxiliary common control physical channel carrying the non-MBMS logical channel monitored by the terminal;

M_REP is the measurement interval cycle period, M_REP=2 ^k , where k is the forward access channel measurement interval cycle period coefficient, read from the forward access channel measurement time information contained in the system information 11 or 12;

_NFDD is equal to 0 or 1, if there is an FDD inter-frequency cell in the adjacent cell information list, then _NFDD = 1, otherwise _NFDD = 0;

N _TDD is equal to 0 or 1, if there is a TDD inter-frequency cell in the adjacent cell information list, then N _TDD =1, otherwise N _TDD =0;

N _GSM is equal to 0 or 1, if there is a GSM inter-frequency cell in the adjacent cell information list, then N _GSM =1, otherwise N _GSM =0;

T _Inter is the available inter-frequency measurement time-receiver conversion time determined by the terminal when ensuring the demodulation performance of the received MBMS.

Or the identification time determined by the terminal is calculated by the following formula:

${\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; identify</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; TDD</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; Max</span>}<span\; class="notranslate">\; \{</span>\mathrm{<span\; class="notranslate">\; 5000</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; Ceil</span>}<span\; class="notranslate">\; \{</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; basic</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; identify\; tify</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; TDD</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; inter</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Inter</span>}}}<span\; class="notranslate">\; \}</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; Freq</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; TDD</span>}}<span\; class="notranslate">\; \}</span>$

In the formula, T _{identify, TDD} represents the identification time used to identify different system WCDMA TDD cells;

T _{basic_identify_TDD, inter} =800ms, is the maximum allowable time for the terminal to identify a different system WCDMA TDD cell;

N _{Freq, FDD} is the number of TDD frequencies contained in the inter-frequency cell information list in the measurement control information issued by UTRAN;

T _meas ＝[(M _FDD +N _TDD +N _GSM )·N _TTI ·M_REP·10]

Wherein _NTTI is the transmission time interval of the forward access channel with the maximum transmission time interval divided by 10ms on the auxiliary common control physical channel carrying the non-MBMS logical channel monitored by the terminal;

M_REP is the measurement interval cycle period, M_REP=2 ^k , where k is the forward access channel measurement interval cycle period coefficient, read from the forward access channel measurement time information contained in the system information 11 or 12;

_NFDD is equal to 0 or 1, if there is an FDD inter-frequency cell in the adjacent cell information list, then _NFDD = 1, otherwise _NFDD = 0;

N _TDD is equal to 0 or 1, if there is a TDD inter-frequency cell in the adjacent cell information list, then N _TDD =1, otherwise N _TDD =0;

N _GSM is equal to 0 or 1, if there is a GSM inter-frequency cell in the adjacent cell information list, then N _GSM =1, otherwise N _GSM =0;

T _Inter is the available inter-system measurement time-receiver conversion time determined by the terminal when ensuring the demodulation performance of the received MBMS.

Wherein the terminal determines the available inter-frequency measurement time that can ensure the demodulation performance requirements of the received MBMS in the system frame number SFN that satisfies the following formula; Different system measurement to identify a new different system GSM cell or measure an already identified different system GSM cell:

SFN＝(C_RNTI mod M_REP+n×M_REP)×N

In the above formula, N is the TTI of the FACH with the largest TTI on the SCCPCH carrying non-MBMS logical channels monitored by the FDD terminal divided by 10ms;

M_REP is the measurement interval cycle period, M_REP=2 ^k , where k is the FACH measurement interval cycle period coefficient, read from the forward access channel measurement time information "FACHmeasurement occasion info" contained in the system information 11 or 12;

C_RNTI is the wireless network temporary identification value of the terminal;

n=0, 1, 2... as long as SFN is below its maximum value.

Wherein the terminal determines the available inter-frequency measurement time-receiver conversion time that can ensure the demodulation performance requirements of the received MBMS in the system frame number SFN that satisfies the following formula; and at the determined available inter-frequency measurement time-receive Perform different-system measurements on different-system GSM cells during machine switching time to identify new different-system GSM cells or measure existing different-system GSM cells:

SFN＝(C_RNTI mod M_REP+n×M_REP)×N

In the above formula, N is the TTI of the FACH with the largest TTI on the SCCPCH carrying non-MBMS logical channels monitored by the FDD terminal divided by 10ms;

M_REP is the measurement interval cycle period, M_REP=2 ^k , where k is the FACH measurement interval cycle period coefficient, read from the forward access channel measurement time information "FACHmeasurement occasion info" contained in the system information 11 or 12;

C_RNTI is the wireless network temporary identification value of the terminal;

n=0, 1, 2... as long as SFN is below its maximum value.

Wherein the above-mentioned receiver conversion time is determined according to the hardware capability of the receiver; the common value of the receiver conversion time is 1 ms.

In order to solve the above-mentioned second problem, the technical scheme proposed by the present invention is as follows:

A method for reporting measurement results of inter-frequency cells/different systems, used to receive MBMS PTM services and the physical layer of an FDD terminal in the CELL_FACH state reports the corresponding measurement results of inter-frequency cells/different systems to high-level layers, wherein the In the process of determining the measurement period in which the measurement result can be reported, the terminal ensures that the demodulation performance requirement for the received MBMS is met.

The measurement period determined by the terminal is calculated by the following formula:

${\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; measurement\; inter</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; Max</span>}<span\; class="notranslate">\; \{</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; Period</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; inter</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; Ceil</span>}<span\; class="notranslate">\; \{</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; basic</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; FDD</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; inter</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Inter</span>}}}<span\; class="notranslate">\; \}</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; Freq</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; FDD</span>}}<span\; class="notranslate">\; \}</span>$

In the formula, T _{measurement inter} represents the measurement period for reporting the CPICH measurement results of inter-frequency cells;

T _{basic_measurement_FDD, inter} = 50ms;

T _{Measurement_Period, Inter} =480ms;

N _{Freq, FDD} is the number of FDD frequencies contained in the inter-frequency cell information list in the measurement control information issued by UTRAN;

T _meas ＝[(N _FDD +N _TDD +N _GSM )·N _TTI ·M_REP·10]

Wherein _NTTI is the transmission time interval of the forward access channel with the maximum transmission time interval divided by 10ms on the auxiliary common control physical channel carrying the non-MBMS logical channel monitored by the terminal;

M_REP is the measurement interval cycle period, M_REP=2 ^k , where k is the forward access channel measurement interval cycle period coefficient, read from the forward access channel measurement time information contained in the system information 11 or 12;

_NFDD is equal to 0 or 1, if there is an FDD inter-frequency cell in the adjacent cell information list, then _NFDD = 1, otherwise _NFDD = 0;

N _TDD is equal to 0 or 1, if there is a TDD inter-frequency cell in the adjacent cell information list, then N _TDD =1, otherwise N _TDD =0;

N _GSM is equal to 0 or 1, if there is a GSM inter-frequency cell in the adjacent cell information list, then N _GSM =1, otherwise N _GSM =0;

T _Inter is the available inter-frequency measurement time-receiver conversion time determined by the terminal when ensuring the demodulation performance of the received MBMS.

Or wherein the measurement period determined by the terminal is calculated by the following formula:

${\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; measurement</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; TDD</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; Max</span>}<span\; class="notranslate">\; \{</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; Period</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; TDD</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; Ceil</span>}<span\; class="notranslate">\; \{</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; basic</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; FDD</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; inter</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Inter</span>}}}<span\; class="notranslate">\; \}</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; Freq</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; FDD</span>}}<span\; class="notranslate">\; \}</span>$

In the formula, T _{measurement, TDD} represents the measurement period for reporting the PCCPCH RSCP measurement results of different system WCDMA TDD cells;

T _{basic_measurement_TDD, inter} = 50ms;

T _{Measurement_Period_TDD, inter} = 480ms;

N _{Freq, TDD} is the number of TDD frequencies contained in the inter-frequency cell information list in the measurement control information issued by UTRAN;

T _meas ＝[(N _FDD +N _TDD +N _GSM )·N _TTI ·M_REP·10]

Wherein _NTTI is the transmission time interval of the forward access channel with the maximum transmission time interval divided by 10ms on the auxiliary common control physical channel carrying the non-MBMS logical channel monitored by the terminal;

M_REP is the measurement interval cycle period, M_REP=2 ^k , where k is the forward access channel measurement interval cycle period coefficient, read from the forward access channel measurement time information contained in the system information 11 or 12;

_NFDD is equal to 0 or 1, if there is an FDD inter-frequency cell in the adjacent cell information list, then _NFDD = 1, otherwise _NFDD = 0;

N _TDD is equal to 0 or 1, if there is a TDD inter-frequency cell in the adjacent cell information list, then N _TDD =1, otherwise N _TDD =0;

N _GSM is equal to 0 or 1, if there is a GSM inter-frequency cell in the adjacent cell information list, then N _GSM =1, otherwise N _GSM =0;

T _Inter is the available inter-system measurement time-receiver conversion time determined by the terminal when ensuring the demodulation performance of the received MBMS.

The conversion time of the receiver is determined according to the hardware capability of the receiver; the common value of the conversion time of the receiver is 1 ms.

The beneficial effect that the present invention can reach is as follows:

The different-frequency cell/different-system identification method of the present invention takes into account the demodulation performance factor of the MBMS received by the terminal when determining the identification time used by the FDD terminal to identify a new different-frequency cell or a new different-system WCDMA TDD cell, so that it can make The terminal can not only complete the identification of different-frequency cells or different-system WCDMA TDD cells, but also ensure the demodulation performance requirements of the terminal for receiving MBMS.

The method for reporting the measurement results of inter-frequency cells/different systems in the present invention determines the CPICH measurement results obtained by performing CPICH measurement on inter-frequency cells at the FDD terminal physical layer or the PCCPCH RSCP measurement results obtained by performing PCCPCH RSCP measurement on inter-system WCDMA TDD cells. When reporting the measurement period used by the upper layer, the demodulation performance factor of the terminal to the received MBMS can be taken into consideration, so that the terminal can complete the CPICH measurement result obtained by performing CPICH measurement on the inter-frequency cell or perform the CPICH measurement on the inter-system WCDMA TDD cell The PCCPCH RSCP measurement result obtained by PCCPCH RSCP measurement is reported to the upper layer, and at the same time, it can also ensure the demodulation performance requirements of the terminal for receiving MBMS.

Description of drawings

FIG. 1 is a schematic diagram of a terminal identifying a different-frequency cell after adopting the principle of the different-frequency cell/different-system identification method of the present invention;

Fig. 2 is the implementation process flowchart of reporting the CPICH measurement result obtained after measuring the CPICH of the different frequency cell to the terminal high level after adopting the method principle of the present invention for reporting the measurement result of the different frequency cell/different system;

Fig. 3 is the schematic diagram of the identification process of the terminal to the WCDMA TDD sub-district of the different system after adopting the principle of the different-frequency cell/different system identification method of the present invention;

Fig. 4 is the flow chart of the implementation process of reporting the PCCPCH RSCP measurement result obtained after the PCCPCH RSCP measurement to the different system WCDMA TDD sub-district to the terminal high level after adopting the method principle of the present invention to report the measurement result of the different frequency cell/different system;

FIG. 5 is a schematic diagram of a terminal identifying a different-system GSM cell after adopting the principles of the different-frequency cell/different-system identification method of the present invention.

Detailed ways

The different-frequency cell/different-system identification method proposed by the present invention is mainly used to identify a new different-frequency cell/different system by an FDD terminal receiving MBMS PTM service and in the CELL_FACH state. In the identification time process of identifying a new inter-frequency cell/inter-system, the demodulation performance factor of the terminal for the received MBMS is taken into consideration, so as to ensure that the demodulation performance requirement for the received MBMS is met.

In addition, the method for reporting the measurement results of different frequency cells/different systems in the present invention is mainly used to report the corresponding measurement results of different frequency cells/different systems to the physical layer of the FDD terminal receiving MBMS PTM service and in the CELL_FACH state. High-level processing, the main design idea is to take into account the demodulation performance of the MBMS received by the terminal when the FDD terminal determines that it can complete the measurement cycle for reporting the measurement results, so as to ensure that the demodulation performance of the received MBMS is satisfied. Require.

Specific embodiments of the present invention will be described in detail below in conjunction with various drawings.

Fig. 1 shows the schematic diagram of the identification process of the terminal to the different-frequency community after adopting the principle of the different-frequency community/different system identification method of the present invention; the process of identifying a new different-frequency community by the FDD terminal receiving the MBMS PTM service and being in the CELL_FACH state is as follows :

Step 10, the FDD terminal receives the measurement control information issued by UTRAN, reads the inter-frequency cell information indicated in the measurement control information, and finds that there is an unidentified inter-frequency cell;

Step 11, the FDD terminal detects the aforementioned unidentified inter-frequency cell;

Step 12, the FDD terminal performs inter-frequency measurement in the system frame number SFN satisfying the following formula, to identify the unidentified inter-frequency cell detected in step 11:

SFN＝(C_RNTI mod M_REP+n×M_REP)×N (Formula 1)

In the above formula, N is the TTI of the FACH with the largest TTI on the SCCPCH carrying non-MBMS logical channels monitored by the FDD terminal divided by 10ms;

M_REP is the measurement interval cycle period, M_REP=2 ^k , where k is the FACH measurement interval cycle period coefficient, read from the forward access channel measurement time information "FACHmeasurement occasion info" contained in the system information 11 or 12;

C_RNTI is the wireless network temporary identification value of the terminal;

n=0, 1, 2..., as long as SFN is below its maximum value;

Step 13, the FDD terminal identifies the unidentified inter-frequency cell detected in step 11 within the identification time calculated by the following formula:

$T_{\mathrm{identify}.\mathrm{inter}}=\mathrm{Ceil}\left\{\frac{T_{\mathrm{basic}\_\mathrm{identify}\_\mathrm{FDD}.\mathrm{inter}}}{T_{\mathrm{Inter}}}\right\}\&Center\; Dot;T_{\mathrm{meas}}\&Center\; Dot;N_{\mathrm{Freq},\mathrm{FDD}}\mathrm{ms}$ (Formula 7)

In the above formula, T _{identify, inter} represents the identification time used by the FDD terminal to identify a new inter-frequency cell; T _{basic_identify_FDD, inter} = 800ms, is the maximum allowable time for the FDD terminal to identify an inter-frequency cell; N _{Freq, FDD} is issued by UTRAN The number of FDD frequencies contained in the inter-frequency cell information list in the measurement control information;

T _meas ＝[(N _FDD +N _TDD +N _GSM )·N _TTI ·M_REP·10]

Where N _TTI is equal to N in step 12; M_REP is equal to M_REP in step 12;

_NFDD is equal to 0 or 1, if there is an FDD inter-frequency cell in the adjacent cell information list, then _NFDD = 1, otherwise _NFDD = 0;

N _TDD is equal to 0 or 1, if there is a TDD inter-frequency cell in the adjacent cell information list, then N _TDD =1, otherwise N _TDD =0;

N _GSM is equal to 0 or 1, if there is a GSM inter-frequency cell in the adjacent cell information list, then N _GSM =1, otherwise N _GSM =0;

T _Inter is the available inter-frequency measurement time-receiver conversion time determined by the FDD terminal when ensuring the demodulation performance of the received MBMS;

The conversion time of the receiver is determined according to the hardware capability of the receiver; currently, the commonly used value of the conversion time of the receiver is =2×0.5ms=1ms.

In step 14, the FDD terminal identifies the inter-frequency cell newly identified in step 13 as an identified inter-frequency cell in the cell information list stored by itself.

Fig. 2 shows the implementation process flowchart of reporting the CPICH measurement result obtained after measuring the CPICH of the inter-frequency sub-district to the terminal high level after adopting the method principle of the present invention reporting the inter-frequency sub-district/different system measurement result; receiving MBMS PTM The FDD terminal in service and in the CELL_FACH state performs CPICH measurement on inter-frequency cells, and the process of reporting the CPICH measurement results obtained from the measurement is as follows:

Step 20, the FDD terminal receives the measurement control information or system broadcast information issued by the UTRAN, and triggers CPICH measurement on inter-frequency cells;

Step 21, the FDD terminal performs CPICH measurement on the inter-frequency cell in the system frame number SFN satisfying the following formula:

SFN＝(C_RNTI mod M_REP+n×M_REP)×N (Formula 1)

The explanation of each parameter in the formula refers to the above.

Step 22, the FDD terminal physical layer reports the CPICH measurement result to the upper layer within the measurement period calculated by the following formula:

${\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; measurement\; inter</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; Max</span>}<span\; class="notranslate">\; \{</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; Period</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; Inter</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; Ceil</span>}<span\; class="notranslate">\; \{</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; basic</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; FDD</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; inter</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Inter</span>}}}<span\; class="notranslate">\; \}</span><span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; Freq</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; FDD</span>}}<span\; class="notranslate">\; \}</span>$

(Formula 8)

In the formula, T _{measurement inter} represents the measurement period for the FDD terminal physical layer to report the CPICH measurement results of inter-frequency cells;

T _{basic_measurement_FDD, inter} = 50ms;

T _{Measurement_Period, Inter} =480ms;

T _Inter is the available inter-frequency measurement time determined by the terminal when ensuring the demodulation performance of the received MBMS-receiver conversion time; the receiver conversion time is determined according to the hardware capability of the receiver, and the common value of the receiver conversion time is 1ms ;

For the explanation of other parameters, refer to the above.

In step S23, the high layer of the FDD terminal uses the CPICH measurement result reported by the physical layer for its own internal algorithm or reports it to the RNC.

Fig. 3 shows the schematic diagram of the identification process of the terminal to the WCDMA TDD sub-district of the different system after adopting the principle of the different-frequency cell/different system identification method of the present invention; the FDD terminal receiving the MBMS PTM service and being in the CELL_FACH state recognizes the new WCDMA TDD of the different system The process of the district is as follows:

Step 30, the FDD terminal receives the measurement control information issued by the UTRAN, reads the inter-frequency cell information indicated in the measurement control information, and finds that there is an unidentified inter-system WCDMA TDD cell;

Step 31, the FDD terminal detects the aforementioned unidentified different-system WCDMA TDD cell;

Step 32, the FDD terminal performs inter-system measurement in the system frame number SFN satisfying the following formula, to identify the unidentified inter-system WCDMA TDD cell detected in step 31:

SFN＝(C_RNTI mod M_REP+n×M_REP)×N

The explanation of each parameter in the formula refers to the above.

Step 33, the FDD terminal identifies the unidentified different-system WCDMA TDD cell detected in step 31 within the identification time calculated by the following formula:

$T_{\mathrm{identify},\mathrm{TDD}}=\mathrm{Max}\{5000,\mathrm{Ceil}\{\frac{T_{\mathrm{basic}\_\mathrm{identify\; tify}\_\mathrm{TDD},\mathrm{inter}}}{T_{\mathrm{Inter}}}\}\&Center\; Dot;T_{\mathrm{meas}}\&Center\; Dot;N_{\mathrm{Freq},\mathrm{TDD}}\}$ (Formula 9)

In the formula, T _{identify, TDD} represents the identification time used by the FDD terminal to identify the WCDMA TDD cell of the different system;

T _{basic_identify_TDD, inter} = 800ms, is the maximum allowable time for the FDD terminal to identify a different system WCDMA TDD cell;

N _{Freq, TDD} is the number of TDD frequencies contained in the inter-frequency cell information list in the measurement control information issued by UTRAN;

T _Inter is the available different system measurement time determined by the terminal when ensuring the demodulation performance of the received MBMS - the receiver conversion time; the receiver conversion time is determined according to the hardware capability of the receiver, and the common value of the receiver conversion time is 1ms ;

For the explanation of other parameters, refer to the above.

In step 34, the FDD terminal identifies the newly identified different-system WCDMA TDD cell in the above-mentioned step 33 as an identified different-system WCDMA TDD cell in the cell information list stored by itself.

Fig. 4 shows for adopting the method principle that the present invention reports to inter-frequency sub-district/extra-system measurement result after the PCCPCH RSCP measurement result obtained after PCCPCH RSCP measurement is carried out to inter-system WCDMA TDD sub-district is reported to the implementation process flowchart of terminal high level; Receive The FDD terminal with MBMS PTM service and in the CELL_FACH state performs PCCPCH RSCP measurement on a different system WCDMA TDD cell, and the process of reporting the measured PCCPCH RSCP measurement results is as follows:

Step 40, the FDD terminal receives the measurement control information or system broadcast information issued by the UTRAN, and triggers the PCCPCH RSCP measurement on the WCDMA TDD cell of the different system;

Step 41, the FDD terminal performs PCCPCH RSCP measurement on the WCDMA TDD cell of the different system in the system frame number SFN satisfying the following formula:

SFN＝(C_RNTI mod M_REP+n×M_REP)×N

The explanation of each parameter in the formula refers to the above.

Step 42, the FDD terminal physical layer reports the PCCPCHRSCP measurement result to the upper layer within the measurement period calculated by the following formula:

${\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; measurement</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; TDD</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; Max</span>}<span\; class="notranslate">\; \{</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; Period</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; inter</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; Ceil</span>}<span\; class="notranslate">\; \{</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; basic</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; measurement</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; FDD</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; inter</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; Inter</span>}}}<span\; class="notranslate">\; \}</span><span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; meas</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; Freq</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; FDD</span>}}<span\; class="notranslate">\; \}</span>$

(Formula 10)

T _{basic_measurement_TDD in the above formula, inter} = 50ms;

T _{Measurement_Period_TDD, inter} = 480ms;

N _{Freq, TDD} is the number of TDD frequencies contained in the inter-frequency cell information list in the measurement control information issued by UTRAN;

T _Inter is the available different system measurement time-receiver conversion time determined by the FDD terminal when ensuring the demodulation performance of the received MBMS; the receiver conversion time is determined according to the hardware capability of the receiver, and usually the common value of the receiver conversion time is 1ms.

Step 43, the FDD terminal high layer uses the PCCPCH RSCP measurement result reported by the physical layer for its own internal algorithm or reports it to the RNC.

Fig. 5 shows the schematic diagram of the identification process of the terminal to the GSM sub-district of the different system after adopting the principle of the different-frequency sub-district/different system identification method of the present invention; the FDD terminal receiving the MBMS PTM service and being in the CELL_FACH state recognizes the new GSM sub-district of the different system or The process of measuring the identified different system GSM cells is as follows:

Step S50, the FDD terminal receives the measurement control information issued by UTRAN, reads the information of the different-system cells indicated in the measurement control information, and finds that there are unidentified different-system GSM cells or needs to measure the identified different-system GSM cells ;

Step S51, the FDD terminal detects the above-mentioned unidentified GSM cell of a different system or performs measurement on the above-mentioned identified GSM cell of a different system;

In step S52, the FDD terminal performs measurement of different system GSM cells in the system frame number SFN satisfying the following formula, so as to identify the unidentified different system GSM cells detected in step S51 or measure the identified different system GSM cells, wherein The specific measurement time is the available inter-frequency measurement time determined when the demodulation performance of the received MBMS is guaranteed; if there is a receiver conversion process, the specific measurement time is the determined available inter-frequency measurement time-receiver conversion time (wherein The conversion time of the receiver is determined according to the hardware capability of the receiver, usually the common value of the conversion time of the receiver is 1ms):

SFN＝(C_RNTI mod M_REP+n×M_REP)×N

In the above formula, N is the TTI of the FACH with the largest TTI on the SCCPCH carrying non-MBMS logical channels monitored by the FDD terminal divided by 10ms;

M REP is the measurement interval cycle period, M_REP=2 ^k , where k is the FACH measurement interval cycle period coefficient, read from the forward access channel measurement time information "FACHmeasurement occasion info" contained in the system information 11 or 12;

C_RNTI is the wireless network temporary identification value of the terminal;

n=0, 1, 2..., as long as SFN is below its maximum value;

In step S53, the FDD terminal identifies the newly identified different-system GSM cell as an identified different-frequency cell in its stored cell information list; or reports the measurement result of the identified different-system GSM cell.

Among them, this process can be applied to the FDD terminal receiving MBMS PTM service and in the CELL_FACH state to measure the GSM carrier Received Signal Strength Indicator (RSSI, Received Signal Strength Indicator) of the GSM cell or GSM initial BSIC (Base transceiver Station Identity Code) identification or GSM BSIC Recertification process.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1, a kind of different-frequency cell/different system identification method, it is professional and be in the new different-frequency cell/different system of FDD terminal recognition under the CELL_FACH state to be used to receive MBMS PTM, it is characterized in that, described terminal can be finished in the recognition time process of discerning the different-frequency cell/different system that makes new advances definite, guarantees to satisfy the demodulation performance requirement to the MBMS that receives.

2, different-frequency cell/different system identification method as claimed in claim 1 is characterized in that, the recognition time that described terminal is determined is calculated by following formula:

$T_{\mathrm{identify},\mathrm{inter}}=\mathrm{Ceil}\left\{\frac{T_{\mathrm{basic}\_\mathrm{identify}\_\mathrm{FDD},\mathrm{inter}}}{T_{\mathrm{Inter}}}\right\}\&CenterDot;T_{\mathrm{meas}}\&CenterDot;N_{\mathrm{Freq},\mathrm{FDD}}\mathrm{ms}$

T in the formula _{Identify, inter}Expression identifies the used recognition time of alien-frequency district;

T _{Basic_identity_FDD, inter}=800ms is the maximum permission time that described terminal recognition goes out alien-frequency district;

N _{Freq, FDD}It is the FDD frequency number that comprises in the different frequency cell information tabulation in the measuring control information that issues of UTRAN;

T _meas＝[(N _FDD+N _TDD+N _GSM)·N _TTI·M_REP·10]

N wherein _TTIBe the Transmission Time Interval of forward access channel in the emission maximum time interval to be arranged on the Secondary Common Control Physical Channel of the non-MBMS logic channel of carrying of described terminal monitoring divided by 10ms;

M_REP measures cycle period at interval, M_REP=2 ^k, wherein k is an at interval cycle period coefficient of forward access channel measurement, reads in system information 11 or 12 contained forward access channel measurement time informations;

N _FDDEqual 0 or 1, if in information of adjacent cells tabulation, the FDD alien-frequency district is arranged, N then _FDD=1, otherwise N _FDD=0;

N _TDDEqual 0 or 1, if in information of adjacent cells tabulation, the TDD alien-frequency district is arranged, N then _TDD=1, otherwise N _TDD=0;

N _GSMEqual 0 or 1, if in information of adjacent cells tabulation, the GSM alien-frequency district is arranged, N then _GSM=1, otherwise N _GSM=0;

T _InterChange-over time available different-frequency measure that to be terminal determine when the demodulation performance that guarantees the MBMS that receives time-receiver.

3, different-frequency cell/different system identification method as claimed in claim 1 is characterized in that, the recognition time that described terminal is determined is calculated by following formula:

$T_{\mathrm{identify},\mathrm{TDD}}=\mathrm{Max}\{5000,\mathrm{Ceil}\{\frac{T_{\mathrm{basic}\_\mathrm{identify}\_\mathrm{TDD},\mathrm{inter}}}{T_{\mathrm{Inter}}}\}\&CenterDot;T_{\mathrm{meas}}\&CenterDot;N_{\mathrm{Freq},\mathrm{TDD}}\}$

T in the formula _{Identify, TDD}Expression identifies the used recognition time in different system WCDMA TDD sub-district;

T _{Basic_identify_TDD, inter}=800ms is the maximum permission time that described terminal recognition goes out different system WCDMA TDD sub-district;

N _{Freq, FDD}It is the TDD frequency number that comprises in the different frequency cell information tabulation in the measuring control information that issues of UTRAN;

T _meas＝[(N _FDD+N _TDD+N _GSM)·N _TTI·M_REP·10]

N wherein _TTIBe the Transmission Time Interval of forward access channel in the emission maximum time interval to be arranged on the Secondary Common Control Physical Channel of the non-MBMS logic channel of carrying of described terminal monitoring divided by 10ms;

M_REP measures cycle period at interval, M_REP=2 ^k, wherein k is an at interval cycle period coefficient of forward access channel measurement, reads in system information 11 or 12 contained forward access channel measurement time informations;

N _FDDEqual 0 or 1, if in information of adjacent cells tabulation, the FDD alien-frequency district is arranged, N then _FDD=1, otherwise N _FDD=0;

N _TDDEqual 0 or 1, if in information of adjacent cells tabulation, the TDD alien-frequency district is arranged, N then _TDD=1, otherwise N _TDD=0;

N _GSMEqual 0 or 1, if in information of adjacent cells tabulation, the GSM alien-frequency district is arranged, N then _GSM=1, otherwise N _GSM=0;

T _InterChange-over time available isosystem measurement that to be terminal determine when the demodulation performance that guarantees the MBMS that receives time-receiver.

4, different-frequency cell/different system identification method as claimed in claim 1 is characterized in that, described terminal determines to guarantee the available different-frequency measure time that the demodulation performance to the MBMS that receives requires in satisfying the system frame number SFN of following formula; And in the time isosystem measurement is carried out in different system GSM sub-district at the available different-frequency measure of determining, the different system GSM sub-district that makes new advances with identification or the different system GSM sub-district of having discerned measured:

SFN＝(C_RNTI?mod?M_REP+n×M_REP)×N

In the following formula, N has the TTI of FACH of maximum TTI divided by 10ms on the SCCPCH of the non-MBMS logic channel of the carrying of FDD terminal monitoring;

M_REP measures cycle period at interval, M_REP=2 ^k, wherein k is that FACH measures cycle period coefficient at interval, reads in system information 11 or 12 contained forward access channel measurement time informations " FACHmeasurement occasion info ";

C_RNTI is the Radio Network Temporary Identifier value of described terminal;

N=0,1,2 ..., as long as SFN is lower than its maximum.

5, different-frequency cell/different system identification method as claimed in claim 1, it is characterized in that described terminal determines to guarantee change-over time available different-frequency measure that the demodulation performance to the MBMS that receives requires time-receiver in satisfying the system frame number SFN of following formula; And in change-over time isosystem measurement is carried out in different system GSM sub-district at the available different-frequency measure determined time-receiver, the different system GSM sub-district that makes new advances with identification or the different system GSM sub-district of having discerned measured:

SFN＝(C_RNTI?mod?M_REP+n×M_REP)×N

In the following formula, N has the TTI of FACH of maximum TTI divided by 10ms on the SCCPCH of the non-MBMS logic channel of the carrying of FDD terminal monitoring;

M_REP measures cycle period at interval, M_REP=2 ^k, wherein k is that FACH measures cycle period coefficient at interval, reads in system information 11 or 12 contained forward access channel measurement time informations " FACHmeasurement occasion info ";

C_RNTI is the Radio Network Temporary Identifier value of described terminal;

N=0,1,2 ..., as long as SFN is lower than its maximum.

As claim 2,3 or 5 described different-frequency cell/different system identification methods, it is characterized in that 6, described receiver is determined according to the hardware capabilities of receiver change-over time; Described receiver accepted value change-over time is 1ms.

7, a kind of method that the different-frequency cell/different measuring results is reported, the physical layer that is used to receive MBMS PTM business and be in the FDD terminal under the CELL_FACH state will report high level to the corresponding measurement result of different-frequency cell/different system, it is characterized in that, described terminal guarantees to satisfy the demodulation performance requirement to the MBMS that receives in determining to finish process described measurement result reports measuring period.

8, the method that the different-frequency cell/different measuring results is reported as claimed in claim 7 is characterized in that, calculated by following formula the measuring period that described terminal is determined:

$T_{\mathrm{measurement\; inter}}=\mathrm{Max}\{T_{\mathrm{Measurement}\_\mathrm{Period},\mathrm{Inter}},2\&CenterDot;T_{\mathrm{meas}},\mathrm{Ceil}\{\frac{T_{\mathrm{basic}\_\mathrm{measurement}\_\mathrm{FDD},\mathrm{inter}}}{T_{\mathrm{Inter}}}\}\&CenterDot;T_{\mathrm{meas}}\&CenterDot;N_{\mathrm{Freq},\mathrm{FDD}}\}$

T in the formula _{Measurement inter}Expression reports the measuring period of alien-frequency district CPICH measurement result;

T _{basic_measurement_FDD，inter}＝50ms；

T _{Measurement_Period，Inter}＝480ms；

N _{Freq, FDD}It is the FDD frequency number that comprises in the different frequency cell information tabulation in the measuring control information that issues of UTRAN;

T _meas＝[(N _FDD+N _TDD+N _GSM)·N _TTI·M_REP·10]

N wherein _TTIBe the Transmission Time Interval of forward access channel in the emission maximum time interval to be arranged on the Secondary Common Control Physical Channel of the non-MBMS logic channel of carrying of described terminal monitoring divided by 10ms;

M_REP measures cycle period at interval, M_REP=2 ^k, wherein k is an at interval cycle period coefficient of forward access channel measurement, reads in system information 11 or 12 contained forward access channel measurement time informations;

N _FDDEqual 0 or 1, if in information of adjacent cells tabulation, the FDD alien-frequency district is arranged, N then _FDD=1, otherwise N _FDD=0;

N _TDDEqual 0 or 1, if in information of adjacent cells tabulation, the TDD alien-frequency district is arranged, N then _TDD=1, otherwise N _TDD=0;

N _GSMEqual 0 or 1, if in information of adjacent cells tabulation, the GSM alien-frequency district is arranged, N then _GSM=1, otherwise N _GSM=0;

T _InterChange-over time available different-frequency measure that to be terminal determine when the demodulation performance that guarantees the MBMS that receives time-receiver.

9, the method that the different-frequency cell/different measuring results is reported as claimed in claim 7 is characterized in that, calculated by following formula the measuring period that described terminal is determined:

$T_{\mathrm{measurement},\mathrm{TDD}}=\mathrm{Max}\{T_{\mathrm{Measurement}\_\mathrm{Period}\_\mathrm{TDD},\mathrm{Inter}},2\&CenterDot;T_{\mathrm{meas}},\mathrm{Ceil}\{\frac{T_{\mathrm{basic}\_\mathrm{measurement}\_\mathrm{TDD},\mathrm{inter}}}{T_{\mathrm{Inter}}}\}\&CenterDot;T_{\mathrm{meas}}\&CenterDot;N_{\mathrm{Freq},\mathrm{TDD}}\}$

T in the formula _{Measurement, TDD}Expression reports the measuring period of different system WCDMA TDD sub-district PCCPCH RSCP measurement result;

T _{basic_measurement_TDD，inter}＝50ms；

T _{Measurement_Period_TDD，inter}＝480ms；

N _{Freq, TDD}It is the TDD frequency number that comprises in the different frequency cell information tabulation in the measuring control information that issues of UTRAN;

T _meas＝[(N _FDD+N _TDD+N _GSM)·N _TTI·M_REP·10]

N wherein _TTIBe the Transmission Time Interval of forward access channel in the emission maximum time interval to be arranged on the Secondary Common Control Physical Channel of the non-MBMS logic channel of carrying of described terminal monitoring divided by 10ms;

M_REP measures cycle period at interval, M_REP=2 ^k, wherein k is an at interval cycle period coefficient of forward access channel measurement, reads in system information 11 or 12 contained forward access channel measurement time informations;

N _FDDEqual 0 or 1, if in information of adjacent cells tabulation, the FDD alien-frequency district is arranged, N then _FDD=1, otherwise N _FDD=0;

N _TDDEqual 0 or 1, if in information of adjacent cells tabulation, the TDD alien-frequency district is arranged, N then _TDD=1, otherwise N _TDD=0;

N _GSMEqual 0 or 1, if in information of adjacent cells tabulation, the GSM alien-frequency district is arranged, N then _GSM=1, otherwise N _GSM=0;

T _InterChange-over time available isosystem measurement that to be terminal determine when the demodulation performance that guarantees the MBMS that receives time-receiver.

10, the method that as claimed in claim 8 or 9 the different-frequency cell/different measuring results is reported is characterized in that, described receiver is determined according to the hardware capabilities of receiver change-over time; Described receiver accepted value change-over time is 1ms.

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