CN104602243B

CN104602243B - A kind of channel quality statistics method and apparatus

Info

Publication number: CN104602243B
Application number: CN201310530570.7A
Authority: CN
Inventors: 林亚男; 沈祖康; 梁靖
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2018-05-22
Anticipated expiration: 2033-10-31
Also published as: CN104602243A

Abstract

The invention discloses a kind of channel quality statistics method and apparatus, this method includes：Terminal receives the first signaling that the network equipment is sent, which, which will be used to indicate the network equipment, the first MCS grades to be used to transmit first kind downlink information；The terminal is since the first subframe, false information statistics is carried out to the first kind downlink information for using the first MCS grades transmission, terminate the false information statistics when the second subframe, first subframe begins to use the subframe of the first MCS grades transmission first kind downlink information for the terminal according to the network equipment that first signaling is determined, second subframe begins to use the subframe of the 2nd MCS grades transmission first kind downlink information for the network equipment that the second signaling that the terminal is sent according to the network equipment is determined, the first MCS grades are different from the 2nd MCS grades.The statistics of the error message of the achievable MBMS downlink informations of the present invention.

Description

Channel quality statistical method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a channel quality statistics method and device.

Background

In order to reduce the manual involvement of network planning and operation maintenance, to reduce the construction and operation costs of the network, and to obtain wireless measurement information of an area that cannot be reached by general Drive Tests, MDT (Minimization of Drive Tests) is introduced in the LTE (Long term evolution ) System of Rel-10 and UMTS (Universal Mobile Telecommunications System) systems. The existing MDT procedure includes:

(1) logged MDT: the terminal obtains a logged MDT configuration in an RRC (Radio Resource Control) connected state by a dedicated signaling manner. And after the terminal enters an idle state, collecting the MDT measurement result, and reporting the collection result to the network side in a subsequent connection state. Once the configured trigger condition is satisfied (only the periodic collection result is currently supported), the terminal obtains and stores the measurement result (log), and reports the measurement result to an eNB (evolved node b)/RNC (Radio Network Controller) at a subsequent appropriate time.

The network side informs the terminal of the related Logged MDT configuration through a special RRC message, wherein the configuration information comprises:

collecting intervals: recording the Logged MDT result in how long a period;

the collection duration is as follows: defining the time length of maintaining the effective state after the MDT configuration is issued to the terminal;

a logging area of network configuration: for example, a cell list or a TA (tracking area) list, the terminal performs logging measurement only in the area, which is optional configuration information;

some Trace identities and TCE (Trace Collection Entity) IDs, etc.

(2) Immedate MDT: and MDT measurement and report are carried out in a connection state. The method comprises the steps that the terminal side collects MDT measurement quantity and the base station side counts the MDT measurement quantity.

In order to implement Broadcast and Multicast transmission, MBMS (evolved Multimedia Broadcast Multicast Service) technology is introduced in Rel-9 version of LTE system and Rel-6 version of UMTS. The MBMS in the LTE system is also called evolved MBMS (eMBMS), and mainly functions to implement broadcast and multicast services in the LTE system, and currently, the MBMS (e) in the R9 stage is mainly implemented by a mixed cell, that is, a cell transmitting the MBMS (e) also propagates unicast services.

(e) MBMS mainly includes MCCH (Multicast Control Channel), MTCH (Multicast Traffic Channel), MCH (Multicast Channel), and PMCH (Physical Multicast Channel).

The MCCH is a point-to-multipoint (point-to-multipoint) downlink channel used for a network to transmit (e) MBMS-related control information to terminals, one MCCH may correspond to one or more MTCHs, and the channel may be used only by terminals capable of receiving (e) MBMS services. The base station will inform the terminal of the modification period and repetition period of the MCCH through system broadcast. In order to ensure reliable reception of the MCCH, the modification period is generally a multiple of the repetition period, and in one modification period, the MCCH information transmitted in all the repetition periods is the same.

The MTCH is a point-to-multipoint downlink channel for transmitting (e) MBMS service data to terminals, which can be used only by terminals capable of receiving (e) the MBMS service. The information of the MTCH is indicated by its corresponding MCCH, and the network indicates the MTCH to the terminal using the MCCH, so that the terminal receives the (e) MBMS service carried on the MTCH.

The MCCH and the MTCH are both mapped to the MCH for transmission, the MCH is mapped to the PMCH for transmission, and each MCH is transmitted in one MSP (MCH Scheduling Period). MSI (MCH scheduling information) is transmitted in the first subframe of each MSP as Control signaling of the MAC (Media Access Control) layer to indicate the location of each MTCH and subframes not currently used in the MCH. The PMCH is a unidirectional downlink multicast channel and has no uplink feedback information related to channel quality.

Because the MBMS (e) is a unidirectional downlink service, there is no related MBMS error rate statistical mechanism in an actual system, for example, it cannot be counted that there is a coverage hole in an MBSFN (MBMS Single Frequency Network) area.

Disclosure of Invention

The embodiment of the invention provides a channel quality statistical method, which is used for realizing the statistics of error information of downlink information.

A channel quality statistics method, comprising:

a terminal receives a first signaling sent by network equipment, wherein the first signaling is used for indicating the network equipment to transmit first type downlink information by using a first modulation coding MCS level;

the terminal performs error information statistics on the first type downlink information transmitted by using the first MCS level from a first subframe, and ends the error information statistics until a second subframe, where the first subframe is a subframe in which the network device starts to transmit the first type downlink information by using the first MCS level and is determined by the terminal according to the first signaling, and the second subframe is a subframe in which the network device starts to transmit the first type downlink information by using a second MCS level and is determined by the terminal according to a second signaling sent by the network device, and the first MCS level is different from the second MCS level.

According to the channel quality statistics method, the performing error information statistics on the first type downlink information transmitted by using the first MCS level includes:

if the first type downlink information and the second type downlink information are mapped to a physical channel in a subframe p, and the physical channel uses the MCS level corresponding to the second type downlink information for transmission, the terminal does not count the error information of the first type downlink information in the subframe p; wherein p is a subframe number, and the subframe p is the first subframe or a subframe between the first subframe and the second subframe; or,

if the first type downlink information and the second type downlink information are mapped to a physical channel in a subframe q, and the physical channel uses the MCS level corresponding to the first type downlink information for transmission, the terminal counts error information of the first type downlink information in the subframe q; wherein q is a subframe number, and the subframe q is the first subframe or a subframe between the first subframe and the second subframe.

Wherein the first type downlink information and the second type downlink information include: a multicast control channel MCCH, a multicast traffic channel MTCH, or multicast channel scheduling information MSI, and the first type of downlink information is different from the second type of downlink information.

According to the channel quality statistical method, the error information statistical result obtained by performing statistics on the error information of the first type downlink information transmitted by using the first MCS level includes one or any combination of the following cases:

if the number of subframes for transmitting the first type downlink information in the counting interval is not less than a first subframe number threshold, the error information counting result of the first type downlink information is a valid result;

if the number of subframes for transmitting the first type downlink information in the counting interval is smaller than the first subframe number threshold, the error information counting result of the first type downlink information is an invalid result;

the terminal combines the statistical results of the plurality of statistical intervals, and the error information statistical result of the first type downlink information after combination is an effective result; wherein the plurality of statistical intervals use the first type of downlink information transmitted by the first MCS level, and the total number of the subframes counted in the plurality of statistical intervals is greater than or equal to the first subframe number threshold.

Further, the method also comprises the following steps: the terminal sends feedback information to the network equipment according to the effective result; or the terminal gives up sending feedback information to the network equipment according to the invalid result.

According to the channel quality statistical method, the method further comprises the following steps: and the terminal sends feedback information to the network equipment according to the error information statistical result.

Wherein, the terminal sends feedback information to the network device according to the statistical result, including: the terminal sends the error information statistical result to the network equipment; or the terminal sends the size relation information between the error information statistical result and a set threshold value to the network equipment; or, the terminal sends the MCS level adjustment policy information to the network device, where the MCS level adjustment policy information is determined according to the error information statistics result.

The sending, by the terminal, information on a magnitude relationship between the error information statistic result and a set threshold to the network device includes: if the error information statistical result is higher than the set threshold, the terminal sends first indication information to the network equipment, wherein the first indication information is used for indicating that the error information statistical result is higher than the set threshold; if the error information statistical result is not higher than the set threshold, the terminal sends second indication information to the network equipment, wherein the second indication information is used for indicating that the error information statistical result is not higher than the set threshold;

or, the terminal sends the size relationship information between the error information statistic result and a set threshold to the network device, including: if the error information statistical result is higher than the set threshold, the terminal sends third indication information to the network equipment, wherein the third indication information is used for indicating that the error information statistical result is higher than the set threshold; if the error information statistical result is far lower than the set threshold, the terminal sends fourth indication information to the network equipment, wherein the fourth indication information is used for indicating that the error information statistical result is lower than the set threshold; if the error information statistic result is lower than but close to the set threshold or equal to the set threshold, the terminal sends fifth indication information to the network device, where the fifth indication information is used to indicate that the error information statistic result is close to the set threshold or equal to the set threshold.

Wherein the set threshold includes a first threshold and a second threshold, the first threshold is smaller than the second threshold, and the sending, by the terminal, the size relationship information between the error information statistic result and the set threshold to the network device includes:

if the error information statistical result is smaller than a first threshold value, the terminal sends sixth indication information to the network equipment, wherein the sixth indication information is used for indicating that the error information statistical result is smaller than the first threshold value;

if the error information statistic result is between the first threshold and the second threshold, the terminal sends seventh indication information to the network device, where the seventh indication information is used to indicate that the error information statistic result is between the first threshold and the second threshold;

if the error information statistic result is greater than the second threshold, the terminal sends eighth indication information to the network device, where the eighth indication information is used to indicate that the error information statistic result is greater than the second threshold.

Wherein the MCS level adjustment policy information includes: increasing the MCS level, decreasing the MCS level, or not changing the MCS level; or, the MCS level adjustment policy information includes: the MCS level adjusts the offset.

According to the channel quality statistical method, the feedback information sent by the terminal to the network device further includes: the MCS level used by the first type of downlink information being counted.

According to the channel quality statistical method, the feedback information sent by the terminal to the network device further includes: and the total number of the counted downlink subframes corresponding to the error information counting result.

According to the channel quality statistical method, the terminal sends the feedback information serving as the measurement quantity of the minimum drive test MDT to the network equipment in the mode of the Immediate MDT or the registered MDT.

According to the above channel quality statistical method, the error information includes one or any combination of the following information: error rate, block error rate, frame error rate, total number of erroneous subframes.

According to the channel quality statistical method, the first type MBMS downlink information includes: MCCH, MTCH or MSI.

A channel quality statistics method, comprising:

the method comprises the steps that network equipment sends first signaling to a terminal, wherein the first signaling is used for indicating that the network equipment is to transmit first type downlink information by using a first Modulation Coding (MCS) level;

the network equipment sends the first type downlink information transmitted by using the first MCS level to the terminal so that the terminal carries out error information statistics according to the first signaling and the first type downlink information transmitted by using the first MCS level; the terminal performs error information statistics on the first type downlink information transmitted by using the first MCS level from a first subframe, and ends the error information statistics until a second subframe, where the first subframe is a subframe in which the network device starts to transmit the first type downlink information by using the first MCS level and is determined by the terminal according to the first signaling, the second subframe is a subframe in which the network device starts to transmit the first type downlink information by using a second MCS level and is determined by the terminal according to a second signaling sent by the network device, and the first MCS level is different from the second MCS level.

According to the channel quality statistical method, the method further comprises the following steps: and the network equipment receives feedback information sent by the terminal, wherein the feedback information is sent by the terminal according to the error information statistical result.

According to the channel quality statistical method, the network device receiving the feedback information sent by the terminal includes: the network equipment receives the error information statistical result sent by the terminal; or, the network device receives the size relation information between the error information statistical result and a set threshold sent by the terminal; or, the network device receives MCS level adjustment policy information sent by the terminal, where the MCS level adjustment policy information is determined according to the error information statistics result.

Wherein the size relationship information includes one of:

first indication information, wherein the first indication information is used for indicating that the error information statistic result is higher than the set threshold;

second indication information, wherein the second indication information is used for indicating that the error information statistic result is not higher than the set threshold;

or, the size relationship information includes one of:

third indication information, wherein the third indication information is used for indicating that the error information statistic result is higher than the set threshold;

fourth indication information, where the fourth indication information is used to indicate that the error information statistic result is lower than the set threshold;

fifth indication information, where the fifth indication information is used to indicate that the error information statistic result is close to the set threshold or equal to the set threshold.

Wherein the set threshold includes a first threshold and a second threshold, the first threshold is smaller than the second threshold, and the size relationship information includes one of:

sixth indication information, where the sixth indication information is used to indicate that the error information statistic result is smaller than the first threshold;

seventh indication information for indicating that the error information statistic is between the first threshold and the second threshold;

eighth indication information, where the eighth indication information is used to indicate that the error information statistic result is greater than the second threshold.

According to the channel quality statistical method, the MCS level adjustment policy information includes: increasing the MCS level, decreasing the MCS level, or not changing the MCS level; or, the MCS level adjustment policy information includes: the MCS level adjusts the offset.

According to the channel quality statistical method, the feedback information received by the network device further includes: the MCS level used by the first type of downlink information being counted.

According to the channel quality statistical method, the feedback information received by the network device further includes: and the total number of the counted downlink subframes corresponding to the error information counting result.

According to the channel quality statistical method, the feedback information is sent to the network device by the terminal in the following way: and sending the feedback information serving as the measurement quantity of the minimum drive test MDT to the network equipment in a mode of immediatate MDT or loggedMDT.

A terminal, comprising:

a receiving module, configured to receive a first signaling sent by a network device, where the first signaling is used to indicate that the network device is to transmit first type downlink information using a first modulation and coding MCS level;

a counting module, configured to perform error information counting on the first type downlink information transmitted using the first MCS level starting from a first subframe, and end the error information counting until a second subframe, where the first subframe is a subframe in which the network device starts to transmit the first type downlink information using the first MCS level and is determined by the terminal according to the first signaling, and the second subframe is a subframe in which the network device starts to transmit the first type downlink information using a second MCS level and is determined by the terminal according to a second signaling sent by the network device, where the first MCS level is different from the second MCS level.

The statistics module is specifically configured to not perform statistics on error information of the first type downlink information in a subframe p if the first type downlink information and the second type downlink information are mapped to one physical channel in the subframe p, and the physical channel uses an MCS level corresponding to the second type downlink information for transmission; wherein p is a subframe number, and the subframe p is the first subframe or a subframe between the first subframe and the second subframe; or,

if the first type downlink information and the second type downlink information are mapped to a physical channel in a subframe q, and the physical channel uses the MCS level corresponding to the first type downlink information for transmission, counting error information of the first type downlink information in the subframe q; wherein q is a subframe number, and the subframe q is the first subframe or a subframe between the first subframe and the second subframe.

In the above method, the error information statistics result obtained by the statistics module performing statistics on the error information of the first type downlink information transmitted by using the first MCS level includes one or any combination of the following cases:

combining the statistical results of the plurality of statistical intervals, wherein the error information statistical result of the first type downlink information after combination is an effective result; wherein the plurality of statistical intervals use the first type of downlink information transmitted by the first MCS level, and the total number of the subframes counted in the plurality of statistical intervals is greater than or equal to the first subframe number threshold.

Wherein, further, still include: and the sending module is used for sending feedback information to the network equipment according to the effective result or giving up sending feedback information to the network equipment according to the ineffective result.

The terminal according to the present invention further includes: and the sending module is used for sending feedback information to the network equipment according to the error information statistical result.

Wherein the sending module is specifically configured to: sending the error information statistical result to the network equipment; or sending the size relation information between the error information statistical result and a set threshold value to the network equipment; or, sending MCS level adjustment policy information to the network device, where the MCS level adjustment policy information is determined according to the error information statistics result.

The sending module sends the size relation information between the error information statistical result and a set threshold to the network device in the following way:

if the error information statistical result is higher than the set threshold, sending first indication information to the network equipment, wherein the first indication information is used for indicating that the error information statistical result is higher than the set threshold;

if the error information statistical result is not higher than the set threshold, sending second indication information to the network equipment, wherein the second indication information is used for indicating that the error information statistical result is not higher than the set threshold;

or, the sending module sends the size relationship information between the error information statistic result and a set threshold to the network device in the following manner:

if the error information statistical result is higher than the set threshold, sending third indication information to the network equipment, wherein the third indication information is used for indicating that the error information statistical result is higher than the set threshold;

if the error information statistical result is far lower than the set threshold, sending fourth indication information to the network equipment, wherein the fourth indication information is used for indicating that the error information statistical result is lower than the set threshold;

and if the error information statistical result is lower than but close to the set threshold or equal to the set threshold, sending fifth indication information to the network equipment, wherein the fifth indication information is used for indicating that the error information statistical result is close to the set threshold or equal to the set threshold.

The sending module sends the size relationship information between the error information statistic result and the set threshold to the network device in the following manner:

if the error information statistical result is smaller than a first threshold value, sending sixth indication information to the network equipment, wherein the sixth indication information is used for indicating that the error information statistical result is smaller than the first threshold value;

if the error information statistic result is between the first threshold and the second threshold, sending seventh indication information to the network device, where the seventh indication information is used to indicate that the error information statistic result is between the first threshold and the second threshold;

and if the error information statistical result is greater than the second threshold, sending eighth indication information to the network device, where the eighth indication information is used to indicate that the error information statistical result is greater than the second threshold.

According to the terminal of the present invention, the feedback information sent by the sending module to the network device further includes: the MCS level used by the first type of downlink information being counted.

According to the terminal of the present invention, the feedback information sent by the sending module to the network device further includes: and the total number of the counted downlink subframes corresponding to the error information counting result.

According to the terminal of the present invention, the sending module is specifically configured to send the feedback information to the network device as a measurement quantity of the minimum drive test MDT in a manner of an immediatate MDT or a Logged MDT.

According to the above terminal of the present invention, the error information includes one or any combination of the following information: error rate, block error rate, frame error rate, total number of erroneous subframes.

According to the terminal of the present invention, the first type MBMS downlink information includes: MCCH, MTCH or MSI.

A network device, comprising:

a sending module, configured to send a first signaling to a terminal, where the first signaling is used to indicate that the network device is to transmit first type downlink information using a first modulation and coding MCS level, and send the first type downlink information transmitted using the first MCS level to the terminal, so that the terminal performs error information statistics according to the first signaling and the first type downlink information transmitted using the first MCS level; the terminal performs error information statistics on the first type downlink information transmitted by using the first MCS level from a first subframe, and ends the error information statistics until a second subframe, where the first subframe is a subframe in which the network device starts to transmit the first type downlink information by using the first MCS level and is determined by the terminal according to the first signaling, the second subframe is a subframe in which the network device starts to transmit the first type downlink information by using a second MCS level and is determined by the terminal according to a second signaling sent by the network device, and the first MCS level is different from the second MCS level.

In the above network device, the counting error information of the first type downlink information transmitted by using the first MCS level in a counting interval in which the network device transmits the first type downlink information by using the first MCS level includes:

In the foregoing network device, the method further includes: and the receiving module is used for receiving feedback information sent by the terminal, wherein the feedback information is sent by the terminal according to the error information statistical result.

The receiving module is specifically configured to receive the error information statistical result sent by the terminal; or receiving the size relation information between the error information statistical result and a set threshold value sent by the terminal; or receiving MCS level adjustment strategy information sent by the terminal, wherein the MCS level adjustment strategy information is determined according to the error information statistic result.

Wherein the size relationship information includes one of:

or, the size relationship information includes one of:

In the above network device, the feedback information received by the receiving module further includes: the MCS level used by the first type of downlink information being counted.

In the above network device, the feedback information received by the receiving module further includes: and the total number of the counted downlink subframes corresponding to the error information counting result.

In the above network device, the feedback information is sent to the network device by the terminal in the following manner: and sending the feedback information serving as the measurement quantity of the minimum drive test MDT to the network equipment in the mode of an Immediate MDT or a Logged MDT.

In the foregoing network device, the error information includes one or any combination of the following information: error rate, block error rate, frame error rate, total number of erroneous subframes.

In the network device, the first type MBMS downlink information includes: MCCH, MTCH or MSI.

In the above embodiment of the present invention, after receiving a signaling that is sent by a network device and is to transmit first type downlink information using a first MCS level, a terminal performs statistics on error information of the first type downlink information transmitted using the first MCS level in a process of receiving the first type downlink information transmitted using the first MCS level by the network device, so as to obtain a channel quality statistics result.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic processing flow diagram of a terminal side in a channel quality statistics flow provided by an embodiment of the present invention;

fig. 2 is a schematic processing flow diagram of a network side in a channel quality statistics flow provided by an embodiment of the present invention;

FIG. 3 is a diagram illustrating an exemplary application scenario in an embodiment of the present invention;

FIG. 4 is a diagram illustrating that no statistics are performed on the multiplexed subframes in an embodiment of the present invention;

FIG. 5 is a diagram illustrating statistical result combining feedback according to an embodiment of the present invention;

FIG. 6 is a second exemplary illustration of an exemplary implementation of the present invention;

FIG. 7 is a diagram illustrating the statistics of the multiplexed sub-frames in an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

For the problems in the prior art, an embodiment of the present invention provides a method for performing error information statistics on downlink information (such as MCCH, MTCH, MSI, or the like), and further performs information feedback to a network side according to a statistical result, so that the network side knows transmission performance, thereby adjusting network deployment.

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a schematic diagram of a processing procedure at a terminal side in channel quality statistics provided in an embodiment of the present invention is shown, where the procedure may include:

step 101: the terminal receives a first signaling sent by a network device, wherein the first signaling is used for indicating that the network device is to transmit first type downlink information by using a first modulation coding MCS level.

Step 102: the terminal performs error information statistics on the first type downlink information transmitted by using the first MCS level from a first subframe, and ends the error information statistics until a second subframe, where the first subframe is a subframe in which the network device starts to transmit the first type downlink information by using the first MCS level and is determined by the terminal according to the first signaling, and the second subframe is a subframe in which the network device starts to transmit the first type downlink information by using a second MCS level and is determined by the terminal according to a second signaling sent by the network device, and the first MCS level is different from the second MCS level.

Further, step 103 (shown as a dashed box in the figure, representing an optional step) may also be included. In step 103, the terminal sends feedback information to the network device according to the error information statistics result.

The network device in the above process may be a base station or an access point device with wireless network access capability. When the above scheme is applied to (e) MBMS scenario of LTE system, or MBMS scenario of UMTS, the first signaling and the second signaling may be MCCH or system information, such as SIB 13; the first type downlink information may be MTCH, MCCH, or MSI; the error information may include one or any combination of the following information: bit Error Rate (Bit Error Rate), Block Error Rate (Block Error Rate), Frame Error Rate (Frame Error Rate), and total number of Error subframes.

Preferably, in step 102, for the case of multiplexing transmission of different types of downlinks, during the statistics process of the error information, the terminal may adopt one of the following schemes:

the first scheme is as follows: if the first type downlink information and the second type downlink information are mapped to a physical channel in a subframe p, and the physical channel uses the MCS level corresponding to the second type downlink information for transmission, the terminal does not count the error information of the first type downlink information in the subframe p; wherein p is a subframe number, p is a first subframe or a subframe between the first subframe and the second subframe, and the first type downlink information is different from the second type downlink information;

scheme II: if the first type downlink information and the second type downlink information are mapped to a physical channel in a subframe q, and the physical channel uses the MCS level corresponding to the first type downlink information for transmission, the terminal counts error information of the first type downlink information in the subframe q; wherein q is a subframe number, the subframe q is the first subframe or a subframe between the first subframe and the second subframe, and the first type downlink information is different from the second type downlink information.

Preferably, in step 102, the terminal may determine whether the error information statistic result is valid according to the number of the counted subframes, and specifically may include one or any combination of the following cases:

combining the statistical results of the plurality of statistical intervals, wherein the error information statistical result of the first type downlink information after combination is an effective result; wherein the plurality of statistical intervals use the first type of downlink information transmitted by the first MCS level, and the total number of the subframes counted in the plurality of statistical intervals is greater than or equal to the first subframe number threshold. By the optimal mode, a plurality of statistical intervals can be combined according to the statistical results of the downlink information of the same type transmitted by using the same MCS level, so that the total number of the statistical subframes meets the first subframe number threshold, and the statistical effectiveness is ensured.

Further, in step 103, according to whether the error information statistic result is valid, the terminal may send feedback information to the network device by one or more of the following manners:

mode 1: the terminal sends feedback information to the network equipment according to the effective result;

mode 2: the terminal gives up sending feedback information to the network equipment according to the invalid result, namely, for the invalid result, the terminal does not feed back information to the network side.

By distinguishing whether the statistical result is valid or not and treating the statistical result when the statistical result is fed back to the network side, the invalid result can be not fed back, the signaling overhead is reduced, and the validity of the feedback information statistics is ensured.

Preferably, in step 103, when the terminal sends the feedback information to the network device according to the statistical result, one of the following feedback manners may be adopted:

feedback method 1: the terminal sends the error information statistical result to the network equipment, for example, one or more of the error rate, the block error rate, the frame error rate or the total number of error subframes obtained by statistics are directly sent to the network equipment;

feedback method 2: the terminal sends the size relation information between the error information statistical result and a set threshold value to the network equipment;

feedback method 3: and the terminal determines an MCS level adjustment strategy according to the error information statistical result and sends the MCS level adjustment strategy information to the network equipment. In specific implementation, if the performance of the first type downlink information counted by the terminal is poor, the MCS level is reduced; if the performance of the first type downlink information counted by the terminal is better, the MCS level is not adjusted or is properly increased. The MCS level adjustment policy information may be indication information to raise the MCS level or indication information to lower the MCS level, or indication information not to change the MCS level; the MCS level adjustment policy information may also be an MCS level adjustment offset.

In the feedback mode 2, a preferred implementation is as follows: setting a threshold, if the error information statistical result is higher than the threshold, the terminal sends first indication information to the network equipment, and the first indication information is used for indicating that the error information statistical result is higher than the set threshold; and if the error information statistical result is not higher than the threshold, the terminal sends second indication information to the network equipment, wherein the second indication information is used for indicating that the error information statistical result is not higher than the set threshold.

In the feedback mode 2, another preferred implementation may be: setting a threshold, if the error information statistical result is higher than the threshold, the terminal sends third indication information to the network equipment, and the third indication information is used for indicating that the error information statistical result is higher than the set threshold; if the error information statistical result is lower than the set threshold, the terminal sends fourth indication information to the network equipment, and the fourth indication information is used for indicating that the error information statistical result is lower than the set threshold; if the error information statistical result is close to the set threshold or equal to the set threshold, the terminal sends fifth indication information to the network device, wherein the fifth indication information is used for indicating that the error information statistical result is close to the set threshold or equal to the set threshold.

For example, taking the counted error information as BLER as an example, the threshold P may be configured by a protocol agreement or by the network side in advance (if the terminal feeds back multiple kinds of error rate information at the same time, each kind of error rate information corresponds to one threshold). If the terminal counts that the BLER of the MTCH is Q within the counting interval (sub-frame t2 to sub-frame t 4), the terminal may adopt one of the following modes a, B, or C:

mode A: the terminal feeds back 2 states to the base station. The first state represents Q > P, and the network side determines that the current MCS level is higher after receiving the feedback information, and the terminal has poor MTCH receiving performance, which requires to reduce the MCS level. The second state represents that Q is less than or equal to P, the network side determines that the current MCS level is not high after receiving the feedback information, the terminal has better MTCH receiving performance, and the MCS level does not need to be reduced.

Mode B: the terminal feeds back 3 states to the base station. The first state represents Q > P, and the network side determines that the current MCS level is higher after receiving the feedback information, and the terminal has poor MTCH receiving performance, which requires to reduce the MCS level. The second state represents that Q is far less than P, and the network side determines that the current MCS level is low after receiving the feedback information, the MTCH efficiency is low, and the MCS level can be properly improved. And the third state indicates that Q is smaller than but close to P or Q = P, the network side determines that the current MCS level is reasonable after receiving the feedback information, the MTCH receiving performance of the terminal meets the requirement, and the MCS level does not need to be adjusted.

Mode C: the terminal feeds back 4 states to the base station. The first state represents Q much greater than P, the second state represents Q much less than P, the third state represents Q less than but close to P, and the fourth state represents Q greater than but close to P. The processing on the network side for the first three cases is the same as in method 1-2. For the fourth situation, after receiving the feedback information, the network side determines that the current MCS level is slightly higher, the MTCH receiving performance of the terminal is slightly poor, and the network side may not adjust the MCS level or properly reduce the MCS level according to the actual situation.

In the feedback mode 2, another preferred implementation may be: two thresholds are set, denoted as a first threshold and a second threshold, respectively, the first threshold being smaller than the second threshold. If the error information statistical result is smaller than the first threshold, the terminal sends sixth indication information to the network equipment, and the sixth indication information is used for indicating that the error information statistical result is smaller than the first threshold; if the error information statistical result is between the first threshold and the second threshold, the terminal sends seventh indication information to the network device, wherein the seventh indication information is used for indicating that the error information statistical result is between the first threshold and the second threshold; if the error information statistical result is greater than the second threshold, the terminal sends eighth indication information to the network device, so as to indicate that the error information statistical result is greater than the second threshold.

For example, taking the counted error information as BLER as an example, the thresholds P1 and P2 may be configured by protocol agreement or by the network side in advance, where P1< P2 (if the terminal feeds back multiple kinds of error rate information at the same time, each kind of error rate information corresponds to two thresholds, respectively). If the terminal counts that the BLER of the MTCH is Q within the counting interval (sub-frame t2 to sub-frame t 4), the terminal may adopt the following manner D:

mode D: the terminal feeds back 3 states to the base station. The first state represents Q > P2, and after receiving the feedback information, the network side determines that the current MCS level is high, the terminal has poor MTCH receiving performance, and needs to reduce the MCS level. The second state represents Q < P1, and the network side determines that the current MCS level is low after receiving the feedback information, the MTCH efficiency is low, and the MCS level can be appropriately increased. And the third state represents that Q is more than or equal to P1 and less than or equal to P2, the network side determines that the current MCS level is reasonable after receiving the feedback information, the MTCH receiving performance of the terminal meets the requirement, and the MCS level does not need to be adjusted.

Preferably, in step 103, the feedback information sent by the terminal to the network device may further include one or two of the following information: and the MCS level used by the counted first type downlink information and the total number of the counted downlink subframes corresponding to the error information counting result.

Preferably, in step 103, the terminal may send the feedback information to the network device as a measurement quantity of MDT in a manner of immediatedmdt or Logged MDT. For example, the terminal obtains the logged MDT configuration in the RRC connected state through a dedicated signaling mode. And after the terminal enters an idle state, collecting the MDT measurement result, and reporting the collection result to the network side in a subsequent connection state. Once the configured triggering condition is met, the terminal acquires and stores (log) the measurement result, and reports the measurement result to the network side at a subsequent appropriate time.

Through the above process, it can be seen that, after receiving a signaling that is sent by a network device and is to use a first MCS level to transmit first type downlink information, in the process of receiving the first type downlink information transmitted by the network device using the first MCS level, a terminal counts error information of the first type downlink information transmitted using the first MCS level, and can further report feedback information according to a statistical result, so that a network side can timely know transmission performance, and then can timely adjust the MCS level to improve the transmission performance.

Referring to fig. 2, a schematic processing flow diagram of a network side in a channel quality statistics flow provided in the embodiment of the present invention is shown, where the flow may include:

step 201: the method comprises the steps that network equipment sends first signaling to a terminal, wherein the first signaling is used for indicating that the network equipment is to transmit first type downlink information by using a first Modulation Coding (MCS) level;

step 202: the network device sends the first type downlink information transmitted by using the first MCS level to the terminal, so that the terminal performs error information statistics according to the first signaling and the first type downlink information transmitted by using the first MCS level, where a process of performing error information statistics on the first type downlink information by the terminal may be as shown in the flow of fig. 1, and details are not described here.

Further, step 203 (shown as a dashed box in the figure, indicating an optional step) may also be included. In step 203, the network device receives feedback information sent by the terminal according to the error information statistical result; the process of the terminal performing the error information statistics and sending the feedback information may be as shown in the flow of fig. 1, and is not described in detail here. After receiving the feedback information sent by the terminal, the network device can adjust the MCS level according to the feedback information of the terminal, so as to improve the transmission performance.

Through the above process, it can be seen that, after receiving a signaling that is sent by a network device and is to use a first MCS level to transmit first type downlink information, in a process of receiving the first type downlink information transmitted by the network device using the first MCS level, a terminal counts error information of the first type downlink information transmitted using the first MCS level, and reports feedback information according to a statistical result, so that a network side can timely know transmission performance, and can timely adjust the MCS level to improve the transmission performance.

In order to more clearly understand the present invention, the following takes MBMS application as an example, and details the information feedback process provided by the embodiment of the present invention are described in detail through three specific embodiments. The following three embodiments are all described based on the scenario shown in fig. 3: the network device sends signaling to inform the terminal that the network device is about to transmit MBMS downlink information using the first MCS level at the sub-frame t1, and the network device performs MBMS transmission using the first MCS level from the sub-frame t 2. Thereafter, the network device transmits signaling to notify the terminal that the network device is to transmit MBMS downlink information using the second MCS level (the first MCS level is different from the second MCS level) at the sub-frame t3, and the network device performs MBMS transmission using the second MCS level from the sub-frame t 4. The sequence of each subframe is as follows according to the sequence of time: subframe t1, subframe t2, subframe t3, and subframe t 4. Here, "t 1" in the subframe t1 indicates a subframe number, and similarly, t2, t3, and t4 also indicate a subframe number, and the subframe numbers indicated by t1, t2, t3, and t4 are different from each other, and may be continuous values or discrete values.

Example one

On the network side, as shown in fig. 3, the network device transmits the MCCH at subframe t1, indicates the first MCS level used for MTCH transmission through the MCCH, and performs MTCH transmission using the first MCS level from subframe t 2. Thereafter, the network device transmits the MCCH at subframe t3, indicates the second MCS level used for MTCH transmission through the MCCH, and starts MTCH transmission using the second MCS level at subframe t 4.

On the terminal side, the terminal receives the MCCH at subframe t1, starts receiving the MTCH transmitted using the first MCS level at subframe t2 according to the first MCS level indicated by the MCCH, and counts error information of the MTCH transmitted using the first MCS level. Thereafter, the terminal receives the MCCH at subframe t3, starts receiving the MTCH transmitted using the second MCS level according to the second MCS level indicated by the MCCH at subframe t4, and counts error information of the MTCH transmitted using the second MCS level from subframe t 4. It can be seen that the sub-frame t2 through the sub-frame t4 (excluding the sub-frame t 4) are statistical intervals in which error information of the MTCH transmitted using the first MCS level is counted.

Further, if the MTCH and the MCCH are multiplexed in one subframe in a part of subframes between the subframe t2 and the subframe t4 and are transmitted using the MCS level corresponding to the MCCH (the MCS level used for MCCH transmission is different from the first MCS level), the terminal does not count the MTCH error information in the subframe t2 to the subframe t4 (excluding the subframe t 4) for the subframe in which the MCCH is multiplexed with the MTCH. For example, as shown in fig. 4, in the statistical interval from the sub-frame t2 to the sub-frame t4, the MCCH and MTCH multiplexed transmission sub-frames are not counted.

Further, a threshold N (N is an integer greater than or equal to 1) may be configured on the terminal in advance in a protocol agreement manner or a network side configuration manner, where the threshold N represents a number of subframes, such as a desirable value of 1000 or 10000. The terminal may determine a statistical strategy according to the number of subframes, and specifically may include three cases:

case 1: the terminal determines the number of subframes for transmitting the MTCH from the subframe t2 to the subframe t4 (excluding the subframe t 4), and if the number of subframes is greater than the set threshold N, the MTCH error information statistics result (i.e., the error information statistics result corresponding to the first MCS level) from the subframe t2 to the subframe t4 (excluding the subframe t 4) is a valid result, and the valid result is reported to the network side by the terminal.

Case 2: the terminal determines the number of subframes for transmitting the MTCH from the subframe t2 to the subframe t4 (excluding the subframe t 4), and if the number of subframes is not greater than the set threshold N, the MTCH error information statistics result (i.e., the error information statistics result corresponding to the first MCS level) from the subframe t2 to the subframe t4 (excluding the subframe t 4) is an invalid result, and the invalid result is not reported to the network side by the terminal.

Case 3: the terminal determines the number of subframes for transmitting the MTCH from the subframe t2 to the subframe t4 (excluding the subframe t 4), and if the number of subframes is not greater than the set threshold N, the MTCH error information statistics (i.e., the error information statistics corresponding to the first MCS level) from the subframe t2 to the subframe t4 (excluding the subframe t 4) is a temporary result. If the error information statistical result corresponding to the first MCS level is a temporary result and the total number of the corresponding counted subframes reaches the threshold value N, the terminal combines the temporary results corresponding to the first MCS level to obtain the error information statistical result corresponding to the first MCS level, the combined statistical result is a valid result, and the combined error information statistical result is reported to the network side by the terminal.

For example, for case 3, an application scenario is shown in fig. 5, where the protocol convention or network side configures a threshold with a value of N. The network side sends the MCCH at a subframe t1 to indicate a first MCS level, and MTCH is transmitted by using the first MCS level from a subframe t 2. The network side sends the MCCH at a subframe t3 to indicate a second MCS level, and MTCH is transmitted by using the second MCS level from a subframe t 4. The network side sends the MCCH at a subframe t5 to indicate a first MCS level, and MTCH is transmitted by using the first MCS level from a subframe t 6. The network side sends MCCH indication third MCS level in a subframe t7, and MTCH is transmitted by using the third MCS level from a subframe t 8. The first MCS level is different from the second MCS level and the third MCS level.

On the terminal side, if the number of MTCH transmission subframes from the subframe t2 (including the subframe t 2) to the subframe t4 (not including the subframe t 4) is not less than N, the error information counted from the subframe t2 to the subframe t4 is valid, and the valid error information is fed back to the network side; if the number of MTCH transmission subframes from subframe t2 (including subframe t 2) to subframe t4 (not including subframe t 4) is less than N, the error information counted from subframe t2 to subframe t4 is invalid, and the terminal does not feed back the counted invalid information to the base station; if the number of MTCH transmission subframes between the subframe t2 (including the subframe t 2) and the subframe t4 (excluding the subframe t 4) is a (smaller than N), the MTCH transmission subframe between the subframe t6 (including the subframe t 6) and the subframe t8 (excluding the subframe t 8) is b, and a + b is greater than or equal to N, combining the temporary result of the error information counted between the subframe t2 and the subframe t4 and the temporary result of the error information counted between the subframe t6 and the subframe t8 to obtain the error information corresponding to the first MCS level, wherein the combined error information is valid and the valid error information is fed back to the network side.

In the embodiment of the present invention, the MTCH error information category counted by the terminal may include one or any combination of the following listed statistical information: BER of MTCH, BLER of MTCH, FER of MTCH, number of error subframes. When the terminal feeds back the MTCH error information statistics result to the network side, the foregoing feedback manner may be adopted, for example, reporting the counted BER, BLER, FER, or number of error subframes of the MTCH, or reporting the statistics result level information obtained according to the set threshold and the statistics result, or reporting the MCS level adjustment policy information obtained according to the statistics result, which is not described in detail herein.

Furthermore, the terminal may feed back the MTCH error information statistics result to the network side, and may also feed back the MCS level corresponding to the MTCH error information statistics result to the network side. For example, when the statistical result of the MTCH error information transmitted using the first MCS level is fed back, the statistical result of the MTCH error information and the first MCS level need to be fed back to indicate that the statistical result corresponds to the first MCS level. By adopting the method, the problem that the terminal incorrectly demodulates a certain MCCH and does not correctly obtain the corresponding MCS level, the error information statistics is carried out after receiving the MTCH according to the incorrect MCS level, and the wrong statistical result is fed back to the network side, so that the network side carries out the error adjustment on the MCS level corresponding to the MTCH can be avoided.

And when the terminal feeds back the error information statistical result to the network side, the error information statistical result is used as the measurement quantity of the MDT and is fed back to the network in the mode of the Immedia MDT or the Logged MDT.

Example two

On the network side, as shown in fig. 6, the network device transmits SIB13 at subframe t1, indicates the first MCS level used for MCCH transmission through SIB13, and performs MCCH transmission using the first MCS level from subframe t 2. Thereafter, the network device transmits SIB13 at subframe t3, indicates the second MCS level used for MCCH transmission through SIB13, and starts MCCH transmission using the second MCS level at subframe t 4.

On the terminal side, the terminal receives the SIB13 at the subframe t1, starts receiving the MCCH transmitted using the first MCS level at the subframe t2 according to the first MCS level indicated by the SIB13, and counts error information of the MCCH transmitted using the first MCS level. Thereafter, the terminal receives the SIB13 at the subframe t3, starts receiving the MCCH transmitted using the second MCS level at the subframe t4 according to the second MCS level indicated by the SIB13, and counts error information of the MCCH transmitted using the second MCS level from the subframe t 4. It can be seen that the sub-frames t2 to t4 (excluding the sub-frame t 4) are a statistical interval for counting error information of the MCCH transmitted using the first MCS level.

Further, if the MTCH and the MCCH are multiplexed in one subframe in a part of subframes between the subframe t2 and the subframe t4, and the MCS level corresponding to the MCCH is used for transmission (the MCS level used for MCCH transmission is the first MCS level), the terminal needs to count the MCCH error information of the subframe t2 to the subframe t4 (excluding the subframe t 4) for the MCCH and MTCH multiplexed transmission subframe. For example, as shown in fig. 7, in a statistical interval from a subframe t2 to a subframe t4, the MCCH and MTCH multiplexed transmission subframes are counted.

case 1: the terminal determines the number of subframes for transmitting the MCCH from the subframe t2 to the subframe t4 (excluding the subframe t 4), and if the number of the subframes is greater than the set threshold N, the statistical result of the MCCH error information (i.e. the statistical result of the error information corresponding to the first MCS level) between the subframe t2 and the subframe t4 (excluding the subframe t 4) is a valid result, and the valid result is reported to the network side by the terminal.

Case 2: the terminal determines the number of subframes for transmitting the MCCH from the subframe t2 to the subframe t4 (excluding the subframe t 4), and if the number of the subframes is not greater than the set threshold N, the statistical result of the MCCH error information (i.e., the statistical result of the error information corresponding to the first MCS level) between the subframe t2 and the subframe t4 (excluding the subframe t 4) is an invalid result, and the invalid result is not reported to the network side by the terminal.

Case 3: the terminal determines the number of subframes for transmitting the MCCH from the subframe t2 to the subframe t4 (excluding the subframe t 4), and if the number of the subframes is not greater than the set threshold N, the MCCH error information statistics result (i.e., the error information statistics result corresponding to the first MCS level) between the subframe t2 and the subframe t4 (excluding the subframe t 4) is in a temporary state. If the error information statistical result corresponding to the first MCS level is a temporary result and the total number of the corresponding counted subframes reaches the threshold value N, the terminal combines the temporary results corresponding to the first MCS level to obtain the error information statistical result corresponding to the first MCS level, the combined statistical result is a valid result, and the combined error information statistical result is reported to the network side by the terminal.

In the embodiment of the present invention, the MCCH error information category counted by the terminal may include one or any combination of the following listed statistical information: BER of MCCH, BLER of MCCH, FER of MCCH, and number of error subframes. When the terminal feeds back the MCCH error information statistics result to the network side, the aforementioned feedback mode may be adopted, for example, reporting the counted BER, BLER, FER, or number of error subframes of the MCCH, or reporting the statistics result level information obtained according to the set threshold and the statistics result, or reporting the MCS level adjustment policy information obtained according to the statistics result, which is not described in detail herein.

Further, while feeding back the MCCH error information statistics to the network side, the terminal may also feed back the MCS level corresponding to the MCCH error information statistics to the network side. For example, when the statistical result of the MCCH error information transmitted using the first MCS level is fed back, the statistical result of the MCCH error information and the first MCS level need to be fed back to indicate that the statistical result corresponds to the first MCS level. By adopting the method, the problem that the terminal incorrectly demodulates a certain SIB13 and does not correctly obtain the corresponding MCS level, and the error information statistics is carried out after receiving the MCCH according to the incorrect MCS level, and the wrong statistical result is fed back to the network side, so that the network side carries out error adjustment on the MCS level corresponding to the MCCH can be avoided.

EXAMPLE III

On the network side, the network device transmits a SIB13 at a subframe t1, indicates a first MCS level used for MSI transmission through the SIB13, and performs MSI transmission using the first MCS level from a subframe t 2. Thereafter, the network device transmits the SIB13 at the subframe t3, indicates the second MCS level used for MSI transmission through the SIB13, and starts MSI transmission using the second MCS level at the subframe t 4.

On the terminal side, the terminal receives the SIB13 at the subframe t1, starts receiving the MSI transmitted using the first MCS level at the subframe t2 according to the first MCS level indicated by the SIB13, and counts error information of the MSI transmitted using the first MCS level. Thereafter, the terminal receives the SIB13 at the subframe t3, receives the MSI transmitted using the second MCS level starting at the subframe t4 according to the second MCS level indicated by the SIB13, and counts error information of the MSI transmitted using the second MCS level starting at the subframe t 4. It can be seen that the sub-frames t2 through t4 (excluding the sub-frame t 4) are statistical intervals in which error information of MSI transmitted using the first MCS level is counted.

Further, if the MTCH and the MSI (or the MCCH) are multiplexed in one subframe in a part of subframes between the subframe t2 and the subframe t4, and the transmission is performed using the MCS level corresponding to the MSI (or the MCCH) (the MCS level used for the MSI or the MCCH transmission is the first MCS level), the terminal needs to perform statistics on the MSI error information of the subframes t2 to the subframe t4 (excluding the subframe t 4) for the subframe in which the MSI (or the MCCH) and the MTCH are multiplexed.

case 1: the terminal determines the number of subframes for transmitting the MSI from the subframe t2 to the subframe t4 (excluding the subframe t 4), if the number of the subframes is greater than the set threshold N, the statistics result of the MSI error information (i.e. the statistics result of the error information corresponding to the first MCS level) from the subframe t2 to the subframe t4 (excluding the subframe t 4) is a valid result, and the valid result is reported to the network side by the terminal.

Case 2: the terminal determines the number of subframes for transmitting the MSI from the subframe t2 to the subframe t4 (excluding the subframe t 4), and if the number of subframes is not greater than the set threshold N, the statistics result of the MSI error information (i.e. the statistics result of the error information corresponding to the first MCS level) from the subframe t2 to the subframe t4 (excluding the subframe t 4) is an invalid result, and the invalid result is not reported to the network side by the terminal.

Case 3: the terminal determines the number of subframes for transmitting the MSI from the subframe t2 to the subframe t4 (excluding the subframe t 4), and if the number of subframes is not greater than the set threshold N, the statistics of the MSI error information (i.e., the statistics of the error information corresponding to the first MCS level) from the subframe t2 to the subframe t4 (excluding the subframe t 4) is in a temporary state. If the error information statistical result corresponding to the first MCS level is a temporary result and the total number of the corresponding counted subframes reaches the threshold value N, the terminal combines the temporary results corresponding to the first MCS level to obtain the error information statistical result corresponding to the first MCS level, the combined statistical result is a valid result, and the combined error information statistical result is reported to the network side by the terminal.

In the embodiment of the present invention, the MSI error information category counted by the terminal may include one or any combination of the following listed statistical information: BER of MSI, BLER of MSI, FER of MSI, and number of error subframes. When the terminal feeds back the statistics result of the MSI error information to the network side, the aforementioned feedback mode may be adopted, for example, reporting the counted BER, BLER, FER, or number of error subframes of the MSI, or reporting the statistics result level information obtained according to the set threshold and the statistics result, or reporting the MCS level adjustment policy information obtained according to the statistics result, which is not described in detail herein.

Further, the terminal may feed back the statistics result of the MSI error information to the network side, and may also feed back the MCS level corresponding to the statistics result of the MSI error information to the network side. For example, when the statistical result of the MSI error information transmitted using the first MCS level is fed back, the statistical result of the MSI error information and the first MCS level need to be fed back to indicate that the statistical result corresponds to the first MCS level. By adopting the method, the problem that the terminal incorrectly demodulates a certain SIB13 to obtain a corresponding MCS level incorrectly, and performs error information statistics after receiving the MSI according to the incorrect MCS level and feeds back the wrong statistics result to the network side to cause the network side to perform error adjustment on the MCS level corresponding to the MSI can be avoided.

If the error information of multiple downlink information needs to be counted in a counting interval, for example, the error information of the MCCH needs to be counted and the error information of the MSI needs to be counted, the counting and the feedback methods for each downlink information can be implemented by referring to the above embodiments, which is not described in detail herein.

In summary, the embodiment of the present invention provides a method for performing error statistics and feedback on MCCH/MSI/MTCH. After the method is used, the network can acquire the transmission performance of the MBMS service, thereby adjusting the network deployment.

Based on the same technical concept, the embodiment of the invention also provides the terminal equipment.

Fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention. The terminal may include a receiving module 801, a counting module 802, and further may further include a sending module 803 (as shown by the dashed box in the figure), where:

a receiving module 801, configured to receive a first signaling sent by a network device, where the first signaling is used to indicate that the network device is to transmit first type downlink information using a first modulation and coding MCS level; and receiving the first type downlink information transmitted by the network equipment by using the first MCS level according to the first signaling;

a counting module 802, configured to perform error information counting on the first type downlink information transmitted by using the first MCS level from a first subframe, and end the error information counting until a second subframe, where the first subframe is a subframe in which the network device starts to transmit the first type downlink information by using the first MCS level and is determined by the terminal according to the first signaling, and the second subframe is a subframe in which the network device starts to transmit the first type downlink information by using a second MCS level and is determined by the terminal according to a second signaling sent by the network device, where the first MCS level is different from the second MCS level;

a sending module 803, configured to send feedback information to the network device according to the error information statistical result obtained by statistics of the statistics module 802. Preferably, the sending module 803 may send the feedback information to the network device as a measurement quantity of MDT in a manner of immediatate MDT or Logged MDT.

Specifically, the statistics module 802 may be specifically configured to: if the first type downlink information and the second type downlink information are mapped to a physical channel in a subframe p, and the physical channel uses the MCS level corresponding to the second type downlink information for transmission, not counting error information of the first type downlink information in the subframe p, wherein the subframe p is a subframe number, and the subframe p is the first subframe or a subframe between the first subframe and the second subframe; or, if the first type downlink information and the second type downlink information are mapped to a physical channel in a subframe q, and the physical channel uses the MCS level corresponding to the first type downlink information for transmission, counting error information of the first type downlink information in the subframe q, where q is a subframe number, and the subframe q is the first subframe or a subframe between the first subframe and the second subframe.

Wherein the first type downlink information and the second type downlink information include: MCCH, MTCH or MSI, and the first type downlink information is different from the second type downlink information.

Specifically, the error information statistics result obtained by the statistics module 802 performing statistics on the error information of the first type downlink information transmitted by using the first MCS level includes one or any combination of the following cases:

The sending module 803 may send the feedback information to the network device through one or any combination of the following steps: sending feedback information to the network equipment according to the effective result; and giving up sending feedback information to the network equipment according to the invalid result.

Specifically, the sending module 803 may send the error information statistics result to the network device; alternatively, the sending module 803 may send the size relationship information between the error information statistic result and a set threshold to the network device; alternatively, the sending module 803 may send MCS level adjustment policy information to the network device, where the MCS level adjustment policy information is determined according to the error information statistics result.

The sending module 803 may send the size relationship information between the error information statistic result and the set threshold to the network device in the following manner:

if the error information statistical result is higher than the set threshold, sending first indication information to the network equipment, wherein the first indication information is used for indicating that the error information statistical result is higher than the set threshold; and if the error information statistical result is not higher than the set threshold, sending second indication information to the network equipment, wherein the second indication information is used for indicating that the error information statistical result is not higher than the set threshold.

The sending module 803 may also send the size relationship information between the error information statistics result and the set threshold to the network device by: if the error information statistical result is higher than the set threshold, sending third indication information to the network equipment, wherein the third indication information is used for indicating that the error information statistical result is higher than the set threshold; if the error information statistical result is far lower than the set threshold, sending fourth indication information to the network equipment, wherein the fourth indication information is used for indicating that the error information statistical result is lower than the set threshold; and if the error information statistical result is lower than but close to the set threshold or equal to the set threshold, sending fifth indication information to the network equipment, wherein the fifth indication information is used for indicating that the error information statistical result is close to the set threshold or equal to the set threshold.

Specifically, the set threshold includes a first threshold and a second threshold, where the first threshold is smaller than the second threshold, and the sending module 803 may send the size relationship information between the error information statistic result and the set threshold to the network device in the following manner: if the error information statistical result is smaller than a first threshold value, sending sixth indication information to the network equipment, wherein the sixth indication information is used for indicating that the error information statistical result is smaller than the first threshold value; if the error information statistic result is between the first threshold and the second threshold, sending seventh indication information to the network device, where the seventh indication information is used to indicate that the error information statistic result is between the first threshold and the second threshold; and if the error information statistical result is greater than the second threshold, sending eighth indication information to the network device, where the eighth indication information is used to indicate that the error information statistical result is greater than the second threshold.

Specifically, the MCS level adjustment policy information includes: increasing the MCS level, decreasing the MCS level, or not changing the MCS level; or, the MCS level adjustment policy information includes: the MCS level adjusts the offset.

Further, the feedback information sent by the sending module 803 to the network device may further include: the MCS level used by the first type of downlink information being counted.

Further, the feedback information sent by the sending module 803 to the network device may further include: and the total number of the counted downlink subframes corresponding to the error information counting result.

Specifically, the error information includes one or any combination of the following information: error rate, block error rate, frame error rate, total number of erroneous subframes.

Specifically, the first type MBMS downlink information includes: MCCH, MTCH or MSI.

Based on the same technical concept, the embodiment of the invention also provides network equipment.

Referring to fig. 9, a schematic structural diagram of a network device according to an embodiment of the present invention is provided, where the network device may be a base station device or other devices with a network access function. The network device may include a sending module 901, and further may further include a receiving module 902 (as shown by a dashed box in the figure), where:

a sending module 901, configured to send a first signaling to a terminal, where the first signaling is used to indicate that the network device is to transmit first type downlink information using a first modulation and coding MCS level; sending the first type downlink information transmitted by using the first MCS level to the terminal so that the terminal carries out error information statistics according to the first signaling and the first type downlink information transmitted by using the first MCS level; the terminal performs error information statistics on the first type downlink information transmitted by using the first MCS level from a first subframe, and ends the error information statistics until a second subframe, where the first subframe is a subframe in which the network device starts to transmit the first type downlink information by using the first MCS level and is determined by the terminal according to the first signaling, the second subframe is a subframe in which the network device starts to transmit the first type downlink information by using a second MCS level and is determined by the terminal according to a second signaling sent by the network device, and the first MCS level is different from the second MCS level.

A receiving module 902, configured to receive feedback information sent by the terminal according to the error information statistics result, where the feedback information is sent by the terminal according to the error information statistics result. Preferably, the feedback information is sent to the network device by the terminal in the following manner: and sending the feedback information serving as the measurement quantity of the MDT to the network equipment in a mode of ImmediatedMDT or Logged MDT.

Specifically, the counting error information of the first type downlink information transmitted by using the first MCS level in a counting interval in which the network device transmits the first type downlink information using the first MCS level includes:

if the first type downlink information and the second type downlink information are mapped to a physical channel in a subframe p, and the physical channel uses the MCS level corresponding to the second type downlink information for transmission, the terminal does not count the error information of the first type downlink information in the subframe p; wherein p is a subframe number, and the subframe p is the first subframe or a subframe between the first subframe and the second subframe; or, if the first type downlink information and the second type downlink information are mapped to a physical channel in a subframe q, and the physical channel uses the MCS level corresponding to the first type downlink information for transmission, the terminal performs statistics on error information of the first type downlink information in the subframe q; wherein q is a subframe number, and the subframe q is the first subframe or a subframe between the first subframe and the second subframe.

Specifically, the receiving module 902 may receive the error information statistical result sent by the terminal; or receiving the size relation information between the error information statistical result and a set threshold value sent by the terminal; or receiving MCS level adjustment strategy information sent by the terminal, wherein the MCS level adjustment strategy information is determined according to the error information statistic result.

Wherein the size relationship information includes one of: first indication information, wherein the first indication information is used for indicating that the error information statistic result is higher than the set threshold; second indication information, wherein the second indication information is used for indicating that the error information statistic result is not higher than the set threshold;

or, the size relationship information includes one of: third indication information, wherein the third indication information is used for indicating that the error information statistic result is higher than the set threshold; fourth indication information, where the fourth indication information is used to indicate that the error information statistic result is lower than the set threshold; fifth indication information, where the fifth indication information is used to indicate that the error information statistic result is close to the set threshold or equal to the set threshold.

Specifically, the set threshold includes a first threshold and a second threshold, the first threshold is smaller than the second threshold, and the size relationship information includes one of: sixth indication information, where the sixth indication information is used to indicate that the error information statistic result is smaller than the first threshold; seventh indication information for indicating that the error information statistic is between the first threshold and the second threshold; eighth indication information, where the eighth indication information is used to indicate that the error information statistic result is greater than the second threshold.

Further, the feedback information received by the receiving module 802 may further include: the MCS level used by the first type of downlink information being counted.

Further, the feedback information received by the receiving module 802 may further include: and the total number of the counted downlink subframes corresponding to the error information counting result.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method for channel quality statistics, comprising:

2. The method of claim 1, wherein said performing error information statistics on said first type of downlink information transmitted using said first MCS level comprises:

3. The method of claim 2, wherein the first type of downstream information and the second type of downstream information comprise: a multicast control channel MCCH, a multicast traffic channel MTCH, or multicast channel scheduling information MSI, and the first type of downlink information is different from the second type of downlink information.

4. The method of claim 1, wherein the statistics of the error information obtained by counting the error information of the first type of downlink information transmitted by using the first MCS level includes one or any combination of the following cases:

5. The method of claim 4, further comprising:

the terminal sends feedback information to the network equipment according to the effective result; or

And the terminal abandons sending feedback information to the network equipment according to the invalid result.

6. The method of claim 1, further comprising:

and the terminal sends feedback information to the network equipment according to the error information statistical result.

7. The method of claim 6, wherein the terminal sends feedback information to the network device according to the statistical result, comprising:

the terminal sends the error information statistical result to the network equipment; or

The terminal sends the size relation information between the error information statistical result and a set threshold value to the network equipment; or

And the terminal sends MCS level adjustment strategy information to the network equipment, wherein the MCS level adjustment strategy information is determined according to the error information statistic result.

8. The method of claim 7, wherein the terminal sends information of size relationship between the error information statistics result and a set threshold to the network device, and the method comprises:

if the error information statistical result is higher than the set threshold, the terminal sends first indication information to the network equipment, wherein the first indication information is used for indicating that the error information statistical result is higher than the set threshold;

if the error information statistical result is not higher than the set threshold, the terminal sends second indication information to the network equipment, wherein the second indication information is used for indicating that the error information statistical result is not higher than the set threshold;

or, the terminal sends the size relationship information between the error information statistic result and a set threshold to the network device, including:

if the error information statistical result is higher than the set threshold, the terminal sends third indication information to the network equipment, wherein the third indication information is used for indicating that the error information statistical result is higher than the set threshold;

if the error information statistical result is far lower than the set threshold, the terminal sends fourth indication information to the network equipment, wherein the fourth indication information is used for indicating that the error information statistical result is lower than the set threshold;

if the error information statistic result is lower than but close to the set threshold or equal to the set threshold, the terminal sends fifth indication information to the network device, where the fifth indication information is used to indicate that the error information statistic result is close to the set threshold or equal to the set threshold.

9. The method of claim 7, wherein the set threshold comprises a first threshold and a second threshold, the first threshold is smaller than the second threshold, and the sending, by the terminal, the size relationship information between the error information statistic result and the set threshold to the network device comprises:

10. The method of claim 7, wherein the MCS level adjustment policy information comprises: increasing the MCS level, decreasing the MCS level, or not changing the MCS level; or,

the MCS level adjustment policy information includes: the MCS level adjusts the offset.

11. The method of claim 6, wherein the feedback information sent by the terminal to the network device further comprises: the MCS level used by the first type of downlink information being counted.

12. The method of claim 6, wherein the feedback information sent by the terminal to the network device further comprises: and the total number of the counted downlink subframes corresponding to the error information counting result.

13. The method according to any one of claims 5 to 12, wherein the terminal sends the feedback information to the network device as a measurement quantity of a minimum drive test MDT in a manner of an immedate MDT or a Logged MDT.

14. The method according to any of claims 1-12, wherein the error information comprises one or any combination of the following information: error rate, block error rate, frame error rate, total number of erroneous subframes.

15. The method according to any of claims 1-12, wherein the first type of downstream information comprises: MCCH, MTCH or MSI.

16. A method for channel quality statistics, comprising:

17. The method of claim 16, wherein said performing error information statistics on said first type of downlink information transmitted using said first MCS level comprises:

18. The method of claim 17, wherein the first type of downstream information and the second type of downstream information comprise: a multicast control channel MCCH, a multicast traffic channel MTCH, or multicast channel scheduling information MSI, and the first type of downlink information is different from the second type of downlink information.

19. The method of claim 16, further comprising:

and the network equipment receives feedback information sent by the terminal, wherein the feedback information is sent by the terminal according to the error information statistical result.

20. The method of claim 19, wherein the network device receives the feedback information sent by the terminal, and comprises:

the network equipment receives the error information statistical result sent by the terminal; or

The network equipment receives the size relation information between the error information statistical result and a set threshold value sent by the terminal; or

And the network equipment receives MCS level adjustment strategy information sent by the terminal, wherein the MCS level adjustment strategy information is determined according to the error information statistic result.

21. The method of claim 20, wherein the size relationship information comprises one of:

or, the size relationship information includes one of:

22. The method of claim 20, wherein the set threshold comprises a first threshold and a second threshold, the first threshold being less than the second threshold, the size relationship information comprising one of:

23. The method of claim 20, wherein the MCS level adjustment policy information comprises: increasing the MCS level, decreasing the MCS level, or not changing the MCS level; or,

24. The method of any one of claims 19-23, wherein the feedback information received by the network device further comprises: the MCS level used by the first type of downlink information being counted.

25. The method of any one of claims 19-23, wherein the feedback information received by the network device further comprises: and the total number of the counted downlink subframes corresponding to the error information counting result.

26. The method according to any of claims 19-23, wherein the feedback information is sent by the terminal to the network device in the following way: and sending the feedback information serving as the measurement quantity of the minimum drive test MDT to the network equipment in the mode of an Immediate MDT or a Logged MDT.

27. The method according to any of claims 16-23, wherein the error information comprises one or any combination of the following information: error rate, block error rate, frame error rate, total number of erroneous subframes.

28. The method according to any of claims 16-23, wherein the first type of downstream information comprises: MCCH, MTCH or MSI.

29. A terminal, comprising:

30. The terminal of claim 29, wherein the statistics module is specifically configured to not perform statistics on error information of the first type downlink information in a subframe p if the first type downlink information and the second type downlink information are mapped to one physical channel in the subframe p, and the physical channel is transmitted using an MCS level corresponding to the second type downlink information; wherein p is a subframe number, and the subframe p is the first subframe or a subframe between the first subframe and the second subframe; or,

31. The terminal of claim 30, wherein the first type of downlink information and the second type of downlink information comprise: a multicast control channel MCCH, a multicast traffic channel MTCH, or multicast channel scheduling information MSI, and the first type of downlink information is different from the second type of downlink information.

32. The terminal of claim 29, wherein the statistics module performs statistics on error information of the first type downlink information transmitted by using the first MCS level to obtain an error information statistic result, which includes one or any combination of the following cases:

33. The terminal of claim 32, further comprising:

and the sending module is used for sending feedback information to the network equipment according to the effective result or giving up sending feedback information to the network equipment according to the ineffective result.

34. The terminal of claim 29, further comprising:

and the sending module is used for sending feedback information to the network equipment according to the error information statistical result.

35. The terminal of claim 34, wherein the sending module is specifically configured to:

sending the error information statistical result to the network equipment; or

Sending the size relation information between the error information statistical result and a set threshold value to the network equipment; or

And sending MCS level adjustment strategy information to the network equipment, wherein the MCS level adjustment strategy information is determined according to the error information statistic result.

36. The terminal of claim 35, wherein the sending module sends the size relationship information between the error information statistic and a set threshold to the network device by:

37. The terminal of claim 35, wherein the set threshold comprises a first threshold and a second threshold, the first threshold is smaller than the second threshold, and the sending module sends the size relationship information between the error information statistic and the set threshold to the network device by:

38. The terminal of claim 35, wherein the MCS level adjustment policy information comprises: increasing the MCS level, decreasing the MCS level, or not changing the MCS level; or, the MCS level adjustment policy information includes: the MCS level adjusts the offset.

39. The terminal of claim 33, wherein the feedback information sent by the sending module to the network device further comprises: the MCS level used by the first type of downlink information being counted.

40. The terminal of claim 33, wherein the feedback information sent by the sending module to the network device further comprises: and the total number of the counted downlink subframes corresponding to the error information counting result.

41. The terminal according to any one of claims 33 to 40, wherein the sending module is specifically configured to send the feedback information to the network device as a measurement quantity of a minimum drive test MDT in a manner of an Immediate MDT or a registered MDT.

42. The terminal according to any of claims 29-40, wherein the error information comprises one or any combination of the following information: error rate, block error rate, frame error rate, total number of erroneous subframes.

43. The terminal according to any of claims 29-40, wherein the first type of downlink information comprises: MCCH, MTCH or MSI.

44. A network device, comprising:

45. The network device of claim 44, wherein the counting error information of the first type of downlink information transmitted using the first MCS level within a counting interval in which the network device transmits the first type of downlink information using the first MCS level comprises:

46. The network device of claim 45, wherein the first type of downstream information and the second type of downstream information comprise: a multicast control channel MCCH, a multicast traffic channel MTCH, or multicast channel scheduling information MSI, and the first type of downlink information is different from the second type of downlink information.

47. The network device of claim 44, further comprising:

and the receiving module is used for receiving feedback information sent by the terminal, wherein the feedback information is sent by the terminal according to the error information statistical result.

48. The network device of claim 47, wherein the receiving module is specifically configured to receive the error information statistics sent by the terminal; or

Receiving the size relation information between the error information statistical result and a set threshold value sent by the terminal; or

And receiving MCS level adjustment strategy information sent by the terminal, wherein the MCS level adjustment strategy information is determined according to the error information statistic result.

49. The network device of claim 48, wherein the size relationship information comprises one of:

or, the size relationship information includes one of:

50. The network device of claim 48, wherein the set threshold comprises a first threshold and a second threshold, the first threshold being less than the second threshold, the size relationship information comprising one of:

51. The network device of claim 48, wherein the MCS level adjustment policy information comprises: increasing the MCS level, decreasing the MCS level, or not changing the MCS level; or,

52. The network device of any one of claims 47-51, wherein the feedback information received by the receiving module further comprises: the MCS level used by the first type of downlink information being counted.

53. The network device of any one of claims 47-51, wherein the feedback information received by the receiving module further comprises: and the total number of the counted downlink subframes corresponding to the error information counting result.

54. The network device of any one of claims 47-51, wherein the feedback information is sent by the terminal to the network device in the following manner: and sending the feedback information serving as the measurement quantity of the minimum drive test MDT to the network equipment in the mode of an Immediate MDT or a Logged MDT.

55. The network device of any one of claims 44-51, wherein the error information comprises one or any combination of: error rate, block error rate, frame error rate, total number of erroneous subframes.

56. The network device of any one of claims 44-51, wherein the first type of downstream information comprises: MCCH, MTCH or MSI.