WO2018192310A1 - Configuration method for physical random access channel parameters, information selection method for physical random access channel parameters, network side device and terminal - Google Patents

Abstract

A configuration method for physical random access channel parameters, an information selection method for physical random access channel parameters, a network side device and a terminal. The method for a network side comprises: sending physical random access channel parameter list and selection threshold list information, physical random access channel parameter list and selection threshold information, physical random access channel parameter list information and physical random access channel parameter information. The method for a terminal side comprises: receiving physical random access channel parameter list and selection threshold list information, physical random access channel parameter list and selection threshold information, physical random access channel parameter list information and physical random access channel parameter information sent by the network side.

Description

Method for configuring physical random access channel parameters, method for selecting physical random access channel parameter information, network side device and terminal

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201710265631.X filed on Jan. 21, 2011, the entire entire content of

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a method for configuring physical random access channel parameters, a network side device, and a terminal.

Background technique

To support the diversification of terminal types and application scenarios, the 3GPP (3rd Generation Partnership Project) specification defines two types of power for eMTC terminals, such as power class 3 (23dBm) and power class. 5 (20dBm); three power levels are defined for narrowband IoT NB-IoT terminals, power class 3 (23dBm), power class 5 (20dBm) and power class 6 (14dBm). Different terminal power levels correspond to different terminal maximum transmit powers. It is necessary to configure reasonable physical random access channel parameter information for different power level eMTC terminals or NB-IoT terminals under different coverage conditions, so that the terminal can select appropriate physical random access channel parameters according to its own power level, and succeed. Initiate a random access request.

Summary of the invention

The present disclosure provides a method for configuring physical random access channel parameters, a network side device, and a terminal. It can effectively support the terminal to configure reasonable physical random access channel resource configuration information for terminals of different power levels when there are multiple power levels of the terminal, and satisfy the normal reception of the random access request of the terminal under different network coverage.

An embodiment of the present disclosure provides a method for configuring physical random access channel parameters, including:

The network side sends a physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information.

Optionally, the method for configuring physical random access channel parameters further includes:

The network side sends a physical random access channel parameter list selection threshold information list information.

Optionally, the physical random access channel parameter list selection threshold list information is used to instruct the terminal to read the corresponding physical random access channel parameter list selection threshold information.

Optionally, the physical random access channel parameter list selection threshold list information is used to indicate that the terminal reads the physical random access channel parameter list selection threshold list information corresponding to the power level according to its own power level. The physical random access channel parameter list selects threshold information.

Optionally, the physical random access channel parameter list selection threshold information includes a set of physical random access channel parameter list selection threshold values, and the number of physical random access channel parameter list selection threshold values is enhanced by coverage The number of levels is determined.

Optionally, the number of physical random access channel parameter list selection threshold information included in the physical random access channel parameter list selection threshold list information is determined by the number of terminal power levels.

Optionally, the correspondence between the physical random access channel parameter list selection threshold list information and the terminal power level is as follows:

The physical random access channel parameter list selection threshold list information includes a physical random access channel parameter list selection threshold information corresponding to the terminal power level.

Optionally, the physical random access channel parameter list selection threshold information in the physical random access channel parameter list selection threshold list information sequence is corresponding to the terminal power level, and specifically includes:

The Nth physical random access channel parameter list selection threshold information terminal power level M corresponding to the physical random access channel parameter list selection threshold list information corresponds to;

a terminal of the power class of M, reading the Nth physical random access channel parameter list selection threshold information in the physical random access channel parameter list selection threshold list information;

Optionally, the values of N and M are both {1...maxPower-Class}, and maxPower-Class is the number of terminal power levels.

Optionally, the number of the terminal power levels is: a preset number of terminal power levels, or a maximum number of terminal power levels defined in the standard, or a number of terminal power levels actually used by the terminal.

Optionally, the physical random access channel parameter list selection threshold information is used to indicate that the terminal selects threshold information according to the measured value of the received power of the reference signal or the synchronization signal of the network side, and the physical random access channel parameter list. The included physical random access channel parameter list selects a threshold value, and determines a coverage enhancement level at which the terminal is located.

Optionally, the physical random access channel parameter list information is used to indicate that the terminal reads the physical random access channel corresponding to the coverage enhancement level in the physical random access channel parameter list information according to the determined coverage enhancement level. Parameter information.

Optionally, the threshold is determined by the network side according to a maximum coupling loss between the base station and the terminal allowed by different coverage enhancement levels, and a reference power of the network side or a transmission power of the synchronization signal.

Optionally, the threshold is equal to P _RStx -MCL _N +P _offset ;

The MCL _N is the maximum coupling loss value between the base station and the terminal allowed by the network side coverage enhancement level N, and the P _RStx is the transmission power value of the network side reference signal or the synchronization signal, and the P _offset configurable threshold margin.

Optionally, the number of physical random access channel parameter information is a preset value;

The preset value is equal to the number of coverage enhancement levels;

Or the preset value is equal to the number of coverage enhancement levels multiplied by the number of terminal power levels;

Alternatively, the preset value is equal to the number of physical random access channel parameter list selection thresholds included in the physical random access channel parameter list selection threshold information plus one.

Optionally, the physical random access channel parameter information includes: a frequency offset sent by the physical random access channel, a starting subframe number sent by the physical random access channel, a random access request maximum number of attempts, and/or a physical Random access channel pilot code repetition number.

Optionally, the maximum number of attempts of the random access request and the number of repetitions of the pilot code of the physical random access channel are determined by the network side according to the coverage enhancement level of the terminal, or by the network side according to the terminal power level and the terminal. The coverage enhancement level is determined.

An embodiment of the present disclosure further provides a method for selecting physical random access channel parameter information, including:

The terminal receives the physical random access channel parameter list selection threshold information, the physical random access channel parameter list information, and the physical random access channel parameter information sent by the network side.

Optionally, the method for selecting physical random access channel parameter information further includes:

The terminal receives the physical random access channel parameter list selection threshold list information sent by the network side.

Optionally, the method for selecting physical random access channel parameter information further includes:

The terminal reads the physical random access channel parameter list selection threshold information corresponding to the power level in the physical random access channel parameter list selection threshold list information according to its own power level.

Optionally, the method for selecting physical random access channel parameter information further includes:

The terminal selects the threshold information according to the measured value of the received power of the reference signal or the synchronization signal of the network side and the read physical random access channel parameter list, and determines the coverage enhancement level of the terminal.

Optionally, the method for selecting physical random access channel parameter information further includes:

The terminal reads a set of physical random access channel parameter list selection thresholds included in the physical random access channel parameter list selection threshold information, and compares the measured value of the reference power of the network side or the received power of the synchronization signal with The physical random access channel parameter list selection threshold is compared to determine a coverage enhancement level of the terminal.

Optionally, the method for selecting physical random access channel parameter information further includes:

If the measured value of the received power of the reference signal or the synchronization signal of the network side is smaller than the physical random access channel parameter list selection threshold corresponding to the coverage enhancement level N in the physical random access channel parameter list selection threshold information, The terminal considers that it is in coverage enhancement level N;

The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level.

Optionally, the method for selecting physical random access channel parameter information further includes:

If the measured value of the received power of the reference signal or the synchronization signal of the network side is greater than the physical random access channel parameter list selection threshold corresponding to the coverage enhancement level M in the physical random access channel parameter list selection threshold information, The terminal considers it to be in coverage enhancement level M;

The value range of M is {1...maxCE-Level}, and maxCE-Level is the number of coverage enhancement levels or the maximum coverage level.

Optionally, the method for selecting physical random access channel parameter information further includes:

The terminal determines the coverage enhancement level of the terminal according to the power value corresponding to the reference power level and the power value corresponding to its own power level, and the physical random access channel parameter list selection threshold information.

Optionally, the method for selecting physical random access channel parameter information further includes:

The terminal determines the coverage enhancement level of the terminal according to the maximum transmit power value of the terminal and the power value corresponding to its own power level, and the physical random access channel parameter list selection threshold information.

Optionally, if the measurement value of the received power of the reference signal or the synchronization signal of the network side of the terminal is smaller than the physical random access channel parameter list selection gate corresponding to the coverage enhancement level N in the physical random access channel parameter list selection threshold information The sum of the limit value and the power compensation value, the terminal considers that it is at the coverage enhancement level N;

The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level.

Optionally, if the difference between the measured value of the received power of the reference signal or the synchronization signal of the network side and the power compensation value is less than the coverage enhancement level N of the physical random access channel parameter list selection threshold information, The physical random access channel parameter list selection threshold value, the terminal considers that it is in the coverage enhancement level N;

The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level.

Optionally, if the measurement value of the received power of the reference signal or the synchronization signal of the network side of the terminal is greater than the physical random access channel parameter list selection gate corresponding to the coverage enhancement level N in the physical random access channel parameter list selection threshold information The sum of the limit value and the power compensation value, the terminal considers that it is at the coverage enhancement level N;

The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level.

Optionally, if the difference between the measured value of the received power of the reference signal or the synchronization signal of the network side and the power compensation value is greater than the coverage enhancement level N of the physical random access channel parameter list selection threshold information. The physical random access channel parameter list selection threshold value, the terminal considers that it is in the coverage enhancement level N;

The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level.

Optionally, the method for selecting physical random access channel parameter information further includes:

The power compensation value is equal to a difference between a power value corresponding to the reference power level and a power value corresponding to the power level of the terminal;

Or the power compensation value is equal to a difference between a maximum transmit power value of the terminal in the cell and a power value corresponding to the power level of the terminal itself.

Optionally, the method for selecting physical random access channel parameter information further includes:

The terminal reads the physical random access channel parameter information corresponding to the coverage enhancement level in the physical random access channel parameter list information according to the determined coverage enhancement level.

Optionally, the method for selecting physical random access channel parameter information further includes:

The terminal initiates a random access request according to the physical random access channel parameter information.

An embodiment of the present disclosure further provides a network side device, including:

a sending module, configured to send a physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information; or send a physical random access channel parameter list selection threshold list information, Sending a physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information.

An embodiment of the present disclosure further provides a terminal, including:

a receiving module, configured to receive physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information sent by the network side; or to receive a physical random access channel parameter list selection Threshold list information, transmission physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information.

DRAWINGS

FIG. 1 is a schematic flowchart of a method for selecting parameter information of a terminal side physical random access channel according to a third embodiment of the present disclosure.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the embodiments of the present invention have been shown in the drawings, it is understood that Rather, these embodiments are provided so that this disclosure will be more fully understood and the scope of the disclosure will be fully disclosed.

A first embodiment of the present disclosure provides a method for configuring physical random access channel parameters, including:

The network side sends a physical random access channel parameter list selection threshold information, physical random access channel parameter information, and a physical random access channel parameter list selection threshold list information.

The physical random access channel parameter list selection threshold list information is used to instruct the terminal to read the corresponding physical random access channel parameter list selection threshold information.

Further, the physical random access channel parameter list selection threshold list information is further used to instruct the terminal to read the physical random access corresponding to the power level in the physical random access channel parameter list selection threshold list information according to its own power level. Enter the channel parameter list to select the threshold information.

In the first embodiment, the physical random access channel parameter list selection threshold information is used to indicate the measured value of the received power of the reference signal or the synchronization signal of the network side, and the physical random access read by the terminal. The channel parameter list selects a threshold value included in the threshold information, and determines a coverage enhancement level of the terminal;

The physical random access channel parameter information is used to indicate that the terminal reads the resource configuration of the physical random access channel corresponding to the determined coverage enhancement level according to the determined coverage enhancement level.

In the first embodiment, the physical random access channel parameter list selection threshold list information is a sequence, and the number of first information units included in the sequence is determined by the number of terminal power levels, the first The information element selects threshold information for the physical random access channel parameter list.

The correspondence between the threshold selection list information of the physical random access channel parameter list and the terminal power level is as follows:

The first information unit included in the physical random access channel parameter list selection threshold list information sequence has a one-to-one correspondence with the power level of the terminal.

The first information unit included in the physical random access channel parameter list selection threshold list information sequence has a one-to-one correspondence with the power level of the terminal, and specifically includes:

The Nth first information unit in the physical random access channel parameter list selection threshold list information sequence corresponds to the terminal power level M;

a terminal with a power level of M, reading information corresponding to the Nth first information unit of the physical random access channel parameter list selection threshold list information sequence;

The values of N and M are all in the range of {1...maxPower-Class}, and the maxPower-Class is the number of preset terminal power levels or the number of terminal power levels actually used by the terminal.

In the first embodiment, the physical random access channel parameter list selection threshold list information is a sequence, the first information unit included in the sequence is a sequence, and the first information unit sequence includes a set of thresholds A value, the number of which is determined by the number of coverage enhancement levels.

In the first embodiment, the first corresponding manner is that the number of the physical random access channel parameter information is equal to the number of coverage enhancement levels, or the first corresponding manner is that the number of the physical random access channel parameter information is equal to the network. The number of coverage enhancement levels supported by the side is multiplied by the number of terminal power levels. The second corresponding mode, that is, the network side device defines corresponding physical random access channel parameters for different power level terminals under different coverage enhancement levels.

For example, if the number of the terminal power levels is 3 and the number of coverage enhancement levels is 3, the first corresponding mode is adopted, and the number of physical random access channel parameter information is 3; The number of random access channel parameter information is 9.

When the first corresponding mode is adopted, the correspondence between the physical random access channel parameter information and the coverage enhancement level includes but is not limited to the following manners:

Physical random access channel parameter information one, corresponding to coverage enhancement level one;

Physical random access channel parameter information 2, corresponding to coverage enhancement level 2;

The physical random access channel parameter information three corresponds to the coverage enhancement level three.

When the second medium corresponding mode is adopted, the correspondence between the physical random access channel parameter information and the terminal power level and the network coverage enhancement level includes but is not limited to the following manners:

method one:

Method 2:

Method three:

Method 4:

The foregoing embodiments of the present disclosure can effectively support the configuration of reasonable physical random access channel resource configuration information for terminals of different power levels when the terminal has multiple power levels, and satisfy the normal random access request of the terminal under different network coverages. receive.

The second embodiment of the present disclosure further provides a method for configuring physical random access channel parameters, including:

The network side sends a physical random access channel parameter list selection threshold information and physical random access channel parameter information.

In the second embodiment, the physical random access channel parameter list selection threshold information is a sequence, and the sequence includes a set of threshold values, and the number of the threshold values is determined by the number of coverage enhancement levels.

In all of the above embodiments, the threshold is determined by the network side according to the maximum coupling loss between the base station and the terminal allowed by different coverage enhancement levels, and the transmission power of the reference signal or the synchronization signal on the network side.

And further, the threshold value is equal to P _RStx -MCL _N +P _offset ; wherein, MCL _N is a maximum coupling loss value between the base station and the terminal allowed by the coverage enhancement level N, and P _RStx is a network side reference signal or synchronization signal transmission power value, P _offset configurable threshold margin.

The physical random access channel parameter list selection threshold information is specifically used to indicate: a measurement value of the received power of the reference signal or the synchronization signal of the network side and a threshold in the selection threshold information of the physical random access channel parameter list The values are compared to determine the coverage enhancement level at which they are located.

In the above embodiment, the physical random access channel parameter information includes: a frequency offset sent by the physical random access channel, a starting subframe number sent by the physical random access channel, a random access request maximum number of attempts, and/or The number of repetitions of the physical random access channel pilot code.

The maximum number of attempts of the random access request and the number of repetitions of the pilot code of the physical random access channel are determined by the network side according to the coverage enhancement level of the terminal, or by the network side according to the terminal power level and the coverage of the terminal. The level of enhancement is determined.

The foregoing embodiment of the present disclosure sends the physical random access channel parameter list selection threshold list information, the physical random access channel parameter list selection threshold information, and the physical random access channel parameter information by using the network side; or sends a physical random access channel parameter list. Selecting the threshold information and the physical random access channel parameter information; effectively supporting the terminal to configure reasonable physical random access channel resource configuration information for terminals of different power levels when the terminal has multiple power levels, and satisfying the terminal under different network coverage. Normal reception of random access requests.

A third embodiment of the present disclosure provides a method for selecting physical random access channel parameter information, including:

Step 31: The terminal receives the physical random access channel parameter list selection threshold list information, the physical random access channel parameter list selection threshold information, the physical random access channel parameter list information, and the physical random access channel parameter information sent by the network side.

The above method may further include:

Step 32: The terminal reads the corresponding physical random access channel parameter list selection threshold list information according to its own power level, and selects the threshold list information according to the physical random access channel parameter list to read the corresponding physical random access channel. Parameter list selection threshold information;

Step 33: The terminal selects threshold information according to the measured value of the received power of the reference signal or the synchronization signal of the network side, and the read physical random access channel parameter list, to determine the coverage enhancement level of the terminal.

Step 34: The terminal reads the physical random access channel parameter information corresponding to the coverage enhancement level in the physical random access channel parameter list information according to the determined coverage enhancement level.

The terminal selects the threshold list information according to the maximum physical power of the terminal to read the corresponding physical random access channel parameter list, including:

The terminal selects a correspondence between the threshold information of the physical random access channel parameter list and the terminal power level included in the sequence of the threshold list information according to the physical random access channel parameter list, and the power level of the terminal, and determines the location Determining threshold information of the terminal physical random access channel parameter list corresponding to the power level of the terminal;

Corresponding relationship between the physical random access channel parameter list selection threshold information and the terminal power level included in the sequence of the physical random access channel parameter list selection threshold list information includes:

The physical random access channel parameter list selection threshold information in the physical random access channel parameter list selection threshold list information sequence is in one-to-one correspondence with the power level of the terminal.

The terminal determines the coverage enhancement level of the terminal according to the measured value of the received power of the reference signal or the synchronization signal of the network side and the read physical random access channel parameter list, and determines that the coverage enhancement level of the terminal includes:

The terminal reads the physical random access channel parameter list selection threshold information, and compares the measured value of the received power of the reference signal or the synchronization signal of the network side with the gate of the physical random access channel parameter list selection threshold information. The limits are compared to determine the network coverage enhancement level at which the terminal is located.

For example, the physical random access channel parameter list selection threshold information is RSRP _Thresholds1 and RSRP _Thresholds2 , respectively corresponding to the coverage enhancement level one threshold and the coverage enhancement level two thresholds; the measured value of the terminal side reference signal received power of the network side is RSRP _measure , Then, when the RSRP _measure <RSRP _Thresholds2 , the terminal judges that it is at the coverage enhancement level two; when the RSRP _measure <RSRP _Thresholds1 , the terminal judges that it is at the coverage enhancement level one; otherwise, the terminal determines that it is at the coverage enhancement level zero.

The foregoing embodiment of the present disclosure selects threshold list information, physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameters by receiving a physical random access channel parameter list sent by the network side. Information; or the selected physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information; can effectively support terminals with different power levels when there are multiple power levels in the terminal Configure reasonable physical random access channel resource configuration information to meet the normal reception of random access requests of the terminal under different network coverage.

A fourth embodiment of the present disclosure provides a method for selecting physical random access channel parameter information, including:

The terminal receives the physical random access channel parameter list selection threshold information and the physical random access channel parameter information sent by the network side.

Further, the method further includes:

The terminal reads the corresponding physical random access channel parameter list selection threshold information according to its own power level;

The terminal determines, according to the measured value of the received power of the reference signal or the synchronization signal of the network side, and the physical random access channel parameter list, the coverage enhancement level of the terminal;

The terminal reads the physical random access channel parameter information corresponding to the coverage enhancement level that is determined according to the coverage enhancement level that is determined to be located.

In the foregoing third and fourth embodiments, when the measured value of the received power of the reference signal or the synchronization signal of the network side of the terminal is smaller than the threshold value in the selection threshold information of the physical random access channel parameter list, the terminal determines the terminal. The network coverage enhancement level is the coverage enhancement level corresponding to the threshold.

In the third and fourth embodiments above,

When the measured value of the received power of the reference signal or the synchronization signal of the network side is greater than the threshold value in the threshold selection information of the physical random access channel parameter list, the terminal determines that the network coverage enhancement level of the terminal is the The coverage enhancement level corresponding to the threshold.

In the third and fourth embodiments above,

When the RSRP _measure <RSRP _Thresholds2 , the terminal determines that the coverage enhancement level of the terminal is M3;

When the RSRP _measure <RSRP _Thresholds1 , the terminal determines that the coverage enhancement level of the terminal is M2; otherwise, the terminal determines that the network coverage enhancement level of the terminal is M1;

M1, M2, and M3 are different network coverage enhancement levels;

The RSRP _Thresholds1 and the RSRP _Thresholds2 respectively are threshold values in the threshold selection information of the physical random access channel parameter list, and the RSRP _measure is a measured value of the reference power of the terminal to the network side or the received power of the synchronization signal.

In the third and fourth embodiments above,

When the RSRP _measure >RSRP _Thresholds3 , the terminal determines that the coverage enhancement level of the terminal is M4;

When the RSRP _measure >RSRP _Thresholds4 , the terminal determines that the coverage enhancement level of the terminal is M5; otherwise, the terminal determines that the coverage enhancement level of the terminal is M6;

M4, M5 and M6 are different coverage enhancement levels;

The RSRP _Thresholds3 and the RSRP _Thresholds4 respectively select a threshold value in the threshold information of the physical random access channel parameter list, and the RSRP _measure is a measured value of the reference power of the terminal to the network side or the received power of the synchronization signal.

A fifth embodiment of the present disclosure provides a method for selecting physical random access channel parameter information, including:

The terminal receives the physical random access channel parameter list selection threshold information, the physical random access channel parameter list information, and the physical random access channel parameter information sent by the network side.

In an implementation of this embodiment, the method may further include:

The terminal determines the coverage enhancement level of the terminal according to the measured value of the received power of the reference signal or the synchronization signal on the network side and the physical random access channel parameter list selection threshold information.

In an implementation of this embodiment, the method may further include:

The terminal determines the coverage enhancement level of the terminal according to the power value corresponding to the reference power level, the power value corresponding to the terminal power level, and the physical random access channel parameter list selection threshold information.

In an implementation of this embodiment, the method may further include:

When the measured value of the received power of the reference signal or the synchronization signal of the network side of the terminal is smaller than the sum of the threshold value and the power compensation value in the selection threshold information of the physical random access channel parameter list, the terminal determines the terminal. The coverage enhancement level is the coverage enhancement level corresponding to the threshold value;

Or, when the difference between the measured value of the received power of the reference signal or the synchronization signal of the network side and the power compensation value is less than the threshold value in the selection threshold information of the physical random access channel parameter list, the terminal determines that the terminal is located The coverage enhancement level is the coverage enhancement level corresponding to the threshold.

In an implementation of this embodiment, the method may further include:

When the measured value of the received power of the reference signal or the synchronization signal of the network side is greater than the sum of the threshold value and the power compensation value in the selection threshold information of the physical random access channel parameter list, the terminal determines the terminal. The coverage enhancement level is the coverage enhancement level corresponding to the threshold value;

Or, when the difference between the measured value of the received power of the reference signal or the synchronization signal of the network side and the power compensation value is greater than the threshold value in the parameter selection threshold of the physical random access channel parameter list, the terminal determines that the terminal is located The coverage enhancement level is the coverage enhancement level corresponding to the threshold.

In an implementation of this embodiment, the method may further include: when the RSRP _measure <RSRP _Thresholds5 + P _compensation , the terminal determines that the network coverage enhancement level of the terminal is M7;

When the RSRP _measure <RSRP _Thresholds6 -P _compensation , the terminal determines that the network coverage enhancement level of the terminal is M8; otherwise, the terminal determines that the network coverage enhancement level of the terminal is M9;

M7, M8, and M9 are different network coverage enhancement levels;

The RSRP _{Thresholds 5} and the RSRP _{Thresholds 6} respectively are threshold values corresponding to the coverage enhancement levels M7 and M8 in the selection threshold information of the physical random access channel parameter list, and the RSRP _measure is the received power of the reference signal or the synchronization signal of the terminal to the network side. The measured value, P _compensation , is a power compensation value determined by a power value corresponding to the reference power level and a power value corresponding to the terminal power level.

In an implementation of this embodiment, the method may further include:

When the RSRP _measure >RSRP _Thresholds7 +P _compensation , the terminal determines that the coverage enhancement level of the terminal is M10;

When the RSRP _measure >RSRP _Thresholds8 +P _compensation , the terminal determines that the coverage enhancement level of the terminal is M11; otherwise, the terminal determines that the coverage enhancement level of the terminal is M12;

M10, M11 and M12 are different coverage enhancement levels;

The RSRP _Thresholds7 and the RSRP _Thresholds8 respectively are threshold values corresponding to the coverage enhancement levels M10 and M11 in the physical random access channel parameter list selection threshold information, and the RSRP _measure is the reference power of the terminal to the network side or the received power of the synchronization signal. The measured value, P _compensation , is a power compensation value determined by a power value corresponding to the reference power level and a power value corresponding to the terminal power level.

In an implementation of this embodiment, the method may further include:

The power compensation value is equal to a difference between a power value corresponding to the reference power level of the terminal and a power value corresponding to the power level;

Or the power compensation value is equal to a difference between a power value corresponding to the reference power level of the terminal and a power value corresponding to the power level, and then the additional compensation value is subtracted.

In an embodiment of the present disclosure, the method may further include: the terminal, according to the determined coverage enhancement level, reading physical random access channel parameter information corresponding to the determined coverage enhancement level.

In all embodiments of the method for receiving a terminal of the foregoing disclosure, the method may further include: the terminal initiating a random access request according to the physical random access channel parameter information.

The foregoing embodiments of the present disclosure can effectively support the configuration of reasonable physical random access channel resource configuration information for terminals of different power levels when the terminal has multiple power levels, and satisfy the normal random access request of the terminal under different network coverages. receive.

The main difference between the other embodiment and the fifth embodiment lies in the definition of P _compensation .

P _{compensation is} a power compensation value determined by the maximum uplink power value of the terminal of the own cell and the power level to which the terminal belongs. P _compensation =P _EMAX1 –P _PowerClass . P _EMAX1 is the maximum uplink power of the local terminal of the network broadcast, and P _PowerClass is the power value corresponding to the terminal power level, for example, the maximum transmit power of 14 dBm corresponding to the terminal of power level 6, or the maximum transmit power of 20 dBm corresponding to the terminal of power level 5.

Wherein, when the RSRP _measure <RSRP _Thresholds7 + P _compensation , the terminal determines that the network coverage enhancement level of the terminal is M10;

When the RSRP _measure <RSRP _Thresholds8 + P _compensation , the terminal determines that the network coverage enhancement level of the terminal is M11; otherwise, the terminal determines that the network coverage enhancement level of the terminal is M12;

In an implementation of this embodiment, the method may further include:

P _{delta is} a power compensation value determined by the maximum uplink power of the terminal of the cell and the power level to which the terminal belongs. P _delta =P _EMAX1 -P _PowerClass , P _EMAX1 is the maximum uplink power value of the local terminal of the network broadcast, and P _PowerClass is the power value corresponding to the terminal power level, for example, the maximum transmit power of 14 dBm corresponding to the terminal of power level 6, or power The terminal of level 5 corresponds to a maximum transmit power of 20 dBm.

After the terminal subtracts P _delta from the measurement value RSRP _measure of the network side reference signal received power, the terminal obtains a modified RSRP _{measureCompensation} =RSRP _measure -P _delta , and selects a threshold information of the physical random access channel parameter list. The threshold values included in the comparison are compared to determine the coverage enhancement level at which the terminal is located (ie, if the power value corresponding to the terminal power level is smaller than the maximum transmit power value of the local terminal of the network broadcast, then P _delta is a positive value, then The actual measured RSRP is reduced to select a coverage level that is more suitable for the low-power terminal, that is, RSRP _{measureCompensation} =RSRP _measure -P _delta ; if the terminal is larger than the reference power, then P _delta is a negative value, then the terminal needs to be actually measured. The resulting RSRP is increased to select a coverage level that is more suitable for high-power terminals, and the formula is still RSRP _{measureCompensation} =RSRP _measure -P _delta )

When the RSRP _{measureCompensation} <RSRP _Thresholds9 , the terminal determines that the network coverage enhancement level of the terminal is M13;

When the RSRP _{measureCompensation} <RSRP _Thresholds10 , the terminal determines that the network coverage enhancement level of the terminal is M14; otherwise, the terminal determines that the network coverage enhancement level of the terminal is M15.

Corresponding to the foregoing first embodiment, the second embodiment, and the third embodiment, the sixth embodiment of the present disclosure further provides a network side device, including:

a sending module, configured to send a physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information; or send a physical random access channel parameter list selection threshold list information, The physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information.

It should be noted that all the implementation methods in the foregoing first, second, and third embodiments are applicable to the embodiment of the network side device, and the same technical effects can be achieved.

The network side device may be a base station, and the sending module of the network side device may be implemented by a transmitter, and the network side device may further include: processing the physical random access channel parameter list selection threshold information, physical random access A channel parameter list information and a processor of physical random access channel parameter information, a memory storing the above information, and the like.

The foregoing embodiments of the present disclosure can effectively support the configuration of reasonable physical random access channel resource configuration information for terminals of different power levels when the terminal has multiple power levels, and satisfy the normal random access request of the terminal under different network coverages. receive.

Corresponding to the foregoing fourth, fifth, and sixth embodiments, the seventh embodiment of the present disclosure further provides a terminal, including:

a receiving module, configured to receive physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information sent by the network side, or receive physical random access sent by the network side The channel parameter list selects threshold list information, physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information.

It should be noted that all the foregoing implementation methods for the terminal are applicable to the embodiment of the terminal, and the same technical effects can be achieved.

The terminal may be a user equipment, and the receiving module of the terminal may be implemented by a receiver. The terminal may further include: processing the physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and A processor that physically accesses channel parameter information, a memory that stores the above information, and the like.

The foregoing embodiments of the present disclosure can effectively support the configuration of reasonable physical random access channel resource configuration information for terminals of different power levels when the terminal has multiple power levels, and satisfy the normal random access request of the terminal under different network coverages. receive.

The above is an alternative embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present disclosure. It should also be considered as the scope of protection of the present disclosure.

Claims (37)

A method for configuring physical random access channel parameters includes: The network side sends a physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information. The method for configuring physical random access channel parameters according to claim 1, further comprising: The network side sends a physical random access channel parameter list selection threshold information list information. The method for configuring a physical random access channel parameter according to claim 2, wherein the physical random access channel parameter list selection threshold list information is used to instruct the terminal to read a corresponding physical random access channel parameter list selection threshold information. . The method for configuring physical random access channel parameters according to claim 3, wherein the physical random access channel parameter list selection threshold list information is used to instruct the terminal to read the physical random access according to its own power level. The channel parameter list selects a physical random access channel parameter list selection threshold information corresponding to the power level in the threshold list information. The method for configuring physical random access channel parameters according to claim 1, wherein the physical random access channel parameter list selection threshold information comprises a set of physical random access channel parameter list selection threshold values, the physical randomness The number of access channel parameter list selection thresholds is determined by the number of coverage enhancement levels. The method for configuring physical random access channel parameters according to claim 2, wherein the number of physical random access channel parameter list selection threshold information included in the physical random access channel parameter list selection threshold list information is determined by terminal power The number of levels is determined. The method for configuring physical random access channel parameters according to claim 6, wherein the correspondence between the physical random access channel parameter list selection threshold list information and the terminal power level is as follows: The physical random access channel parameter list selection threshold list information includes a physical random access channel parameter list selection threshold information corresponding to the terminal power level. The method for configuring a physical random access channel parameter according to claim 7, wherein the physical random access channel parameter list selects a physical random access channel parameter list selection threshold information and a terminal power level included in the threshold list information sequence. Corresponding, including: The Nth physical random access channel parameter list selection threshold information terminal power level M corresponding to the physical random access channel parameter list selection threshold list information corresponds to; a terminal of the power class of M, reading the Nth physical random access channel parameter list selection threshold information in the physical random access channel parameter list selection threshold list information; Where N and M are in the range of {1...maxPower-Class}, and maxPower-Class is the number of terminal power levels. The method for configuring physical random access channel parameters according to claim 6 or 8, wherein the number of the terminal power levels is: a preset number of terminal power levels, or a maximum number of terminal power levels defined in the standard, or The number of terminal power levels actually used by the terminal. The method for configuring physical random access channel parameters according to claim 1, 4, 7 or 8, wherein The physical random access channel parameter list selection threshold information is used to indicate that the terminal selects the physical randomness included in the threshold information according to the measured value of the received power of the reference signal or the synchronization signal on the network side, and the physical random access channel parameter list. The access channel parameter list selects a threshold value, and determines an coverage enhancement level at which the terminal is located. The method for configuring physical random access channel parameters according to claim 1, wherein The physical random access channel parameter list information is used to instruct the terminal to read physical random access channel parameter information corresponding to the coverage enhancement level in the physical random access channel parameter list information according to the determined coverage enhancement level. The method for configuring physical random access channel parameters according to claim 5, 8 or 11, wherein the threshold value is a maximum coupling loss between the base station and the terminal allowed by the network side according to different coverage enhancement levels, and the network The reference power of the side or the transmit power of the sync signal is determined. The method for configuring physical random access channel parameters according to claim 12, wherein the threshold value is equal to P _{RStx -} MCL _N + P _offset ; The MCL _N is the maximum coupling loss value between the base station and the terminal allowed by the network side coverage enhancement level N, and the P _RStx is the transmission power value of the network side reference signal or the synchronization signal, and the P _offset configurable threshold margin. The method for configuring physical random access channel parameters according to claim 1, wherein the number of physical random access channel parameter information is a preset value; The preset value is equal to the number of coverage enhancement levels; Or the preset value is equal to the number of coverage enhancement levels multiplied by the number of terminal power levels; Alternatively, the preset value is equal to the number of physical random access channel parameter list selection thresholds included in the physical random access channel parameter list selection threshold information plus one. The method for configuring physical random access channel parameters according to claim 1 or 14, wherein the physical random access channel parameter information comprises: a frequency offset sent by a physical random access channel, and a physical random access channel. The starting subframe number, the random access request maximum number of attempts, and/or the physical random access channel pilot code repetition number. The method for configuring a physical random access channel parameter according to claim 15, wherein the maximum number of attempts of the random access request and the number of repetitions of the pilot code of the physical random access channel are enhanced by the network side according to the coverage of the terminal. The level is determined, or is determined by the network side according to the terminal power level and the coverage enhancement level of the terminal. A method for selecting physical random access channel parameter information includes: The terminal receives the physical random access channel parameter list selection threshold information, the physical random access channel parameter list information, and the physical random access channel parameter information sent by the network side. The method for selecting physical random access channel parameter information according to claim 17, further comprising: The terminal receives the physical random access channel parameter list selection threshold list information sent by the network side. The method for selecting physical random access channel parameter information according to claim 18, further comprising: The terminal reads the physical random access channel parameter list selection threshold information corresponding to the power level in the physical random access channel parameter list selection threshold list information according to its own power level. The method for selecting physical random access channel parameter information according to claim 19, further comprising: The terminal selects the threshold information according to the measured value of the received power of the reference signal or the synchronization signal of the network side and the read physical random access channel parameter list, and determines the coverage enhancement level of the terminal. The method for selecting physical random access channel parameter information according to claim 20, further comprising: The terminal reads a set of physical random access channel parameter list selection thresholds included in the physical random access channel parameter list selection threshold information, and compares the measured value of the reference power of the network side or the received power of the synchronization signal with The physical random access channel parameter list selection threshold is compared to determine a coverage enhancement level of the terminal. The method for selecting physical random access channel parameter information according to claim 20 or 21, further comprising: If the measured value of the received power of the reference signal or the synchronization signal of the network side is smaller than the physical random access channel parameter list selection threshold corresponding to the coverage enhancement level N in the physical random access channel parameter list selection threshold information, The terminal considers that it is in coverage enhancement level N; The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level. The method for selecting physical random access channel parameter information according to claim 20 or 21, further comprising: If the measured value of the received power of the reference signal or the synchronization signal of the network side is greater than the physical random access channel parameter list selection threshold corresponding to the coverage enhancement level M in the physical random access channel parameter list selection threshold information, The terminal considers it to be in coverage enhancement level M; The value range of M is {1...maxCE-Level}, and maxCE-Level is the number of coverage enhancement levels or the maximum coverage level. The method for selecting physical random access channel parameter information according to claim 20, further comprising: The terminal determines the coverage enhancement level of the terminal according to the power value corresponding to the reference power level and the power value corresponding to its own power level, and the physical random access channel parameter list selection threshold information. The method for selecting physical random access channel parameter information according to claim 17 or 20, further comprising: The terminal determines the coverage enhancement level of the terminal according to the maximum transmit power value of the terminal and the power value corresponding to its own power level, and the physical random access channel parameter list selection threshold information. The method for selecting physical random access channel parameter information according to claim 17, wherein If the measured value of the received power of the reference signal or the synchronization signal of the network side is smaller than the physical random access channel parameter list corresponding to the coverage enhancement level N in the physical random access channel parameter list selection threshold information, the threshold value and the power are selected. The sum value between the compensation values, the terminal considers that it is at the coverage enhancement level N; The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level. The method for selecting physical random access channel parameter information according to claim 17, wherein If the difference between the measured value of the received power of the reference signal or the synchronization signal of the network side and the power compensation value is smaller than the physical random access corresponding to the coverage enhancement level N in the selection threshold information of the physical random access channel parameter list The channel parameter list selects a threshold value, and the terminal considers that it is at the coverage enhancement level N; The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level. The method for selecting physical random access channel parameter information according to claim 17, wherein If the measured value of the received power of the reference signal or the synchronization signal of the network side is greater than the physical random access channel parameter list corresponding to the coverage enhancement level N in the physical random access channel parameter list selection threshold information, the threshold value and the power are selected. The sum value between the compensation values, the terminal considers that it is at the coverage enhancement level N; The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level. The method for selecting physical random access channel parameter information according to claim 17, wherein If the difference between the measured value of the received power of the reference signal or the synchronization signal of the network side and the power compensation value is greater than the physical random access corresponding to the coverage enhancement level N in the selection threshold information of the physical random access channel parameter list The channel parameter list selects a threshold value, and the terminal considers that it is at the coverage enhancement level N; The value of N ranges from {1...maxCE-Level}, and the value of maxCE-Level is the number of coverage enhancement levels or the maximum coverage level. The method for selecting physical random access channel parameter information according to any one of claims 26 to 29, further comprising: The power compensation value is equal to a difference between a power value corresponding to the reference power level and a power value corresponding to the power level of the terminal; Or the power compensation value is equal to a difference between a maximum transmit power value of the terminal in the cell and a power value corresponding to the power level of the terminal itself. The method for selecting physical random access channel parameter information according to any one of claims 20 to 29, further comprising: The terminal reads the physical random access channel parameter information corresponding to the coverage enhancement level in the physical random access channel parameter list information according to the determined coverage enhancement level. The method for selecting physical random access channel parameter information according to claim 31, further comprising: The terminal initiates a random access request according to the physical random access channel parameter information. A network side device, including: a sending module, configured to send a physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information; or send a physical random access channel parameter list selection threshold list information, Sending a physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information. A terminal comprising: a receiving module, configured to receive physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information sent by the network side; or to receive a physical random access channel parameter list selection Threshold list information, transmission physical random access channel parameter list selection threshold information, physical random access channel parameter list information, and physical random access channel parameter information. A network side device comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the computer program as claimed in claims 1 to 16 The step of configuring a physical random access channel parameter according to any one of the preceding steps. A terminal comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the computer program to implement any one of claims 17 to 32 The step of selecting a method of selecting physical random access channel parameter information. A computer readable storage medium having stored thereon a computer program, the program being executed by a processor, the steps of configuring a physical random access channel parameter according to any one of claims 1 to 16, And/or the step of implementing the method of selecting physical random access channel parameter information according to any one of claims 17 to 32.

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