WO2015042780A1 - Method for receiving and method and apparatus for sending paging message - Google Patents

Abstract

Provided are a method for receiving a paging message and a terminal, for solving the problem that too many processing resources will be consumed when a UE determines the location of a frequency domain resource where a PDSCH which carries a paging message is located. The method comprises: determining, by a terminal, according to a functional relationship between a discontinuous reception (DRX) period, a terminal identification of the terminal and the size of a frequency domain resource occupied by a paging message, the location of the frequency domain resource where the paging message is located; and receiving the paging message at the determined location of the frequency domain resource. Also provided are a method for sending a paging message and a network terminal device.

Description

 Method, device and device for receiving paging message

 The present invention relates to the field of wireless communication technologies, and in particular, to a method, a method, and a device for receiving a paging message. Background technique

 In a Long Term Evolution (LTE) system, a network device can send a paging message to a user equipment (UE) in an idle state and a connected state. The paging message is used to notify the UE that the system information has been updated, or to notify the UE to receive information such as the Earthquake and Tsunami Warning System (ETWS) and information such as CMAS.

 In the prior art, the paging message is carried by a Physical Downlink Shared Channel (PDSCH). The time domain resource location of the PDSCH carrying the paging message is determined by the paging moment (Paging Occasion, PO, generally refers to the subframe) on the corresponding paging radio frame (PF); and the paging message is carried. The location of the frequency domain resource where the PDSCH is located is indicated by a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH). The PF and PO where the PDCCH (or EPDCCH) is located, that is, the PF and PO where the PDSCH is located. Generally, the PDCCH (or EPDCCH) may be transmitted by using the first two to three Orthogonal Frequency Division Multiplexing (OFDM) symbols included in the PO on the PF, and the PDSCH may be transmitted by using other OFDM symbols.

Before receiving the paging message, the UE needs to first monitor the PDCCH (or EPDCCH), and then determine whether the network device is in this time according to whether the PDCCH (or EPDCCH) carries the Paging Radio Network Temporary Identifier (P-RNTI). Whether the paging cycle sends a paging message to the UE. Specifically, if the P-RNTI is carried on the PDCCH (or EPDCCH), the frequency domain corresponding to the PDSCH carrying the paging message indicated on the PDCCH (or EPDCCH) is located. The resource location-related parameters are used to receive the paging message on the PDSCH. If the UE does not resolve the P-RNTI on the PDCCH (or EPDCCH), the PDSCH does not need to be received, but the discontinuous reception (DRX) may be used. The cycle is dormant. With this mechanism, in a DRX cycle, the UE can receive the PDCCH (or EPDCCH) only at the time position where the PO appears, and then receive the PDSCH as needed, and at other times, the UE can enter the sleep state to save power. the goal of.

 For the UE, in order to determine the location of the frequency domain resource where the PDSCH carrying the paging message is located, it is necessary to monitor the PDCCH (or EPDCCH) by means of blind detection. This manner undoubtedly causes the UE to consume more processing resources. Summary of the invention

 The embodiment of the invention provides a method for receiving a paging message and a problem for the terminal to solve the problem that the UE spends more processing resources in order to determine the location of the frequency domain resource where the PDSCH carrying the paging message is located.

 The embodiment of the invention further provides a method for sending a paging message and a network device.

 In a first aspect, a method for receiving a paging message is provided, including: determining, by a terminal, a function function of a discontinuous reception DRX cycle, a terminal identifier of the terminal, and a size of a frequency domain resource occupied by a paging message, The location of the frequency domain resource where the message is located; receiving the paging message at the determined location of the frequency domain resource.

 With reference to the first aspect, in a first possible implementation, the method further includes: determining, by the terminal, the paging according to a function relationship between the DRX cycle, the terminal identifier, and a preset offset. The time domain resource location where the message is located; wherein the offset satisfies: the determined time domain resource location is different from the time domain resource location where the system information is located; and the terminal receives the determined frequency domain resource location The paging message specifically includes: the terminal receiving the paging message on the determined time domain resource location and the determined frequency domain resource location.

With reference to the first aspect, in a second possible implementation, the method further includes: determining, by the terminal, a time domain resource location where the paging message is located according to a functional relationship between the DRX cycle and the terminal identifier When the determined time domain resource location is the same as the time domain resource location where the system message is located At the same time, the terminal does not receive the paging message on the determined time domain resource location and the frequency domain resource location; when the determined time domain resource location is different from the time domain resource location where the system message is located, the terminal is at Receiving the paging message on the determined location of the frequency domain resource includes: receiving, by the terminal, the paging message on the determined time domain resource location and the determined frequency domain resource location.

 With reference to the first aspect, the first or second possible implementation manner of the first aspect, in a third possible implementation manner, the terminal is configured according to the DRX cycle, the terminal identifier, and the paging message Determining the location of the frequency domain resource in the function of the frequency domain resource, and determining the location of the frequency domain resource where the paging message is located, the method specifically includes: determining, by the terminal, the terminal according to the function relationship between the DRX period, the terminal identifier, and the terminal group identifier Group identifier; determining the resource block group identifier according to the terminal group identifier, the function of the frequency domain resource occupied by the paging message, and the frequency domain resource group identifier; according to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location, Determining a frequency domain resource location mapped by the determined frequency domain resource group identifier.

 In conjunction with the third possible implementation of the first aspect, in a fourth possible implementation, the mapping relationship is pre-agreed by the network device and the terminal.

 With reference to the third possible implementation manner of the first aspect, in a fifth possible implementation, the terminal obtains the mapping relationship by: the terminal receiving the mapping relationship sent by the network device .

 With reference to the fifth possible implementation manner of the foregoing aspect, in a sixth possible implementation manner, the receiving, by the terminal, the mapping relationship, The mapping relationship sent statically or dynamically.

 With reference to the first aspect, or any one of the first to the sixth possible implementation manners of the first aspect, in the seventh possible implementation manner, the terminal identifier includes: an international mobile subscriber identity IMSI, Radio Network Temporary Identity RNTI, International Mobile Equipment Identity Code IMEI or Temporary Mobile Subscriber Identity TMSI.

A second aspect provides a method for sending a paging message, including: receiving, by a network device, a terminal identifier of a terminal that is to receive a paging message; and using a frequency that is discontinuously received by the DRX cycle, the terminal identifier, and the paging message a function of the size of the domain resource, determining the frequency of the paging message Domain resource location; transmitting the paging message on the determined frequency domain resource location.

 With reference to the second aspect, in a first possible implementation manner, the method further includes: determining, by the network end device, a function function of the DRX cycle, the terminal identifier, and a preset offset a time domain resource location where the paging message is located, where the offset satisfies: the determined time domain resource location is different from the time domain resource location where the system information is located; and the transmitting location is determined at the determined frequency domain resource location The paging message specifically includes: the network end device sending the paging message on the determined time domain resource location and the determined frequency domain resource location.

 With reference to the second aspect, in a second possible implementation manner, the method further includes: determining, by the network end device, a time domain in which the paging message is located according to a functional relationship between the DRX cycle and the terminal identifier a resource location; when the determined time domain resource location is the same as the time domain resource location where the system message is located, the network end device sends a system message at the determined time domain resource location without transmitting the paging message; When the location of the time domain resource is different from the location of the time domain resource in which the system message is located, the network device sends the paging message on the determined location of the frequency domain resource, specifically: the network device determines The paging message is sent on the location of the time domain resource and the determined location of the frequency domain resource.

 With reference to the second aspect, or the first or the second possible implementation manner of the second aspect, in a third possible implementation manner, the network end device, according to the DRX cycle, the terminal identifier, and the Determining the location of the frequency domain resource in which the paging message is located, the method includes: the network device according to the DRX cycle, the terminal identifier, and the terminal group identifier The function relationship, determining the terminal group identifier; the function of the terminal group identifier, the size of the frequency domain resource occupied by the paging message, and the frequency domain resource group identifier, determining the frequency domain resource group identifier; according to the frequency domain resource group identifier and the frequency domain The mapping relationship of the resource location determines the location of the frequency domain resource mapped by the determined frequency domain resource group identifier.

 With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner, the mapping relationship is pre-agreed by the network end device and the terminal.

With reference to the third possible implementation of the second aspect, in a fifth possible implementation, the method further includes: the network end device notifying the terminal to the mapping relationship. With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, the network end device notifying the mapping relationship to the terminal, specifically: And a semi-static or dynamic notification manner, notifying the terminal to the mapping relationship.

 With reference to the second aspect, or any one of the first to the sixth possible implementation manners of the second aspect, in a seventh possible implementation manner, the terminal identifier includes: an international mobile subscriber identity IMSI, Radio Network Temporary Identity RNTI, International Mobile Equipment Identity Code IMEI or Temporary Mobile Subscriber Identity TMSI.

 In a third aspect, a terminal is provided, including: a frequency domain resource location determining unit, configured to determine, according to a function relationship between a discontinuous reception DRX cycle, a terminal identifier of the terminal, and a size of a frequency domain resource occupied by a paging message, a frequency domain resource location where the paging message is located; and a receiving unit, configured to receive the paging message at the determined frequency domain resource location.

 With reference to the third aspect, in a first possible implementation manner, the terminal further includes: a time domain resource location determining unit, configured to perform a function relationship according to the DRX cycle, the terminal identifier, and a preset offset And determining, by the time domain resource location where the paging message is located, where the offset is satisfied: the determined time domain resource location is different from the time domain resource location where the system information is located; : receiving the paging message on the determined time domain resource location and frequency domain resource location.

 With reference to the third aspect, in a second possible implementation manner, the terminal further includes: a time domain resource location determining unit, configured to determine the paging message according to a functional relationship between the DRX cycle and the terminal identifier The time domain resource location; the execution unit, configured to: when the determined time domain resource location is the same as the time domain resource location where the system message is located, not receiving the homing in the determined time domain resource location and the frequency domain resource location The receiving unit is specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, receive the location in the determined time domain resource location and the determined frequency domain resource location Said paging message.

With reference to the third aspect, or the first or the second possible implementation manner of the third aspect, in the third possible implementation, the frequency domain resource location determining unit specifically includes: a terminal group identifier determining subunit, For functioning according to the DRX cycle, the terminal identifier, and the terminal group identifier, Determining a terminal group identifier; a resource block group identifier determining subunit, configured to determine a resource block group identifier according to a terminal group identifier, a function of a frequency domain resource occupied by the paging message, and a frequency domain resource group identifier; the frequency domain resource a location determining sub-unit, configured to combine the frequency domain resource group identifier and the frequency domain resource location according to the third possible implementation manner of the third aspect, in a fourth possible implementation manner, the mapping relationship is a network end device Pre-agreed with the terminal.

 In conjunction with the third possible implementation of the third aspect, in a fifth possible implementation, the receiving unit is further configured to receive the mapping relationship that is sent by the network device.

 With the fifth possible implementation of the third aspect, in a sixth possible implementation, the receiving unit is specifically configured to receive, by the network device, the static, semi-static or dynamic manner Mapping relations.

 With reference to the third aspect, or any one of the first to the sixth possible implementation manners of the third aspect, in a seventh possible implementation manner, the terminal identifier includes: an international mobile subscriber identity IMSI, Radio Network Temporary Identity RNTI, International Mobile Equipment Identity Code IMEI or Temporary Mobile Subscriber Identity TMSI.

 The fourth aspect provides a network end device, including: an identifier obtaining unit, configured to obtain a terminal identifier of a terminal that is to receive a paging message; a frequency domain resource location determining unit, configured to receive, according to the discontinuous reception DRX cycle, the terminal Determining, by a function of the size of the frequency domain resource occupied by the paging message, determining a frequency domain resource location where the paging message is located; and sending, configured to send the paging message on the determined frequency domain resource location .

 With reference to the fourth aspect, in a first possible implementation, the network device further includes: a time domain resource location determining unit, configured to use, according to the DRX cycle, the terminal identifier, and a preset offset a function relationship, determining a time domain resource location where the paging message is located, where the offset is satisfied: the determined time domain resource location is different from the time domain resource location where the system information is located; And transmitting: the paging message on the determined time domain resource location and the determined frequency domain resource location.

With reference to the fourth aspect, in a second possible implementation, the network device further includes: a time domain resource location determining unit, configured to determine a time domain resource location where the paging message is located according to a functional relationship between the DRX cycle and the terminal identifier; and an execution unit, configured to determine, when the time domain resource location is When the time domain resource location of the system message is the same, the network end device sends a system message at the determined time domain resource location without sending the paging message; the sending unit is specifically configured to: when determining the time domain When the resource location is different from the time domain resource location where the system message is located, the paging message is sent on the determined time domain resource location and the determined frequency domain resource location.

 With reference to the fourth aspect, or the first or the second possible implementation manner of the fourth aspect, in the third possible implementation, the frequency domain resource location determining unit specifically includes: a terminal group identifier determining subunit, And determining, according to the function relationship between the DRX period, the terminal identifier, and the terminal group identifier, the terminal group identifier; the frequency domain resource group identifier determining subunit, configured to use the frequency domain resource occupied by the terminal group identifier and the paging message. The function of the size and the frequency domain resource group identifier, determining the frequency domain resource group identifier; the frequency domain resource location determining subunit, for combining the third possible aspect of the fourth aspect according to the frequency domain resource group identifier and the frequency domain resource bit In a fourth possible implementation manner, the mapping relationship is pre-agreed by the network end device and the terminal.

 With reference to the third possible implementation manner of the fourth aspect, in a fifth possible implementation, the sending unit is further configured to: notify the terminal of the mapping relationship.

 With reference to the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation, the sending unit is specifically configured to notify the mapping relationship by using a static, semi-static or dynamic notification manner Said terminal.

 With reference to the fourth aspect, or any one of the first to the sixth possible implementation manners of the fourth aspect, in a seventh possible implementation manner, the terminal identifier includes: an international mobile subscriber identity IMSI, Radio Network Temporary Identity RNTI, International Mobile Equipment Identity Code IMEI or Temporary Mobile Subscriber Identity TMSI.

The fifth aspect provides a terminal, including: a processor, configured to determine the paging according to a function relationship between a discontinuous reception DRX cycle, a terminal identifier of the terminal, and a size of a frequency domain resource occupied by a paging message. The frequency domain resource location where the message is located; the signal receiver, used in the determined frequency domain The paging message is received at a resource location.

 With reference to the fifth aspect, in a first possible implementation manner, the processor is further configured to: determine the paging message according to a function relationship between the DRX cycle, the terminal identifier, and a preset offset The time domain resource location; wherein, the offset satisfies: the determined time domain resource location is different from the time domain resource location where the system information is located; the signal receiver is specifically configured to: determine the time domain resource The paging message is received at the location and the determined frequency domain resource location.

 With reference to the fifth aspect, in a second possible implementation manner, the processor is further configured to: determine, according to a functional relationship between the DRX cycle and the terminal identifier, a time domain resource location where the paging message is located; And when the determined time domain resource location is the same as the time domain resource location where the system message is located, indicating that the signal receiver does not receive the paging message on the determined time domain resource location and the frequency domain resource location; The receiver is specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, receive the paging message on the determined time domain resource location and the determined frequency domain resource location.

 With reference to the fifth aspect, or the first or the second possible implementation manner of the fifth aspect, in a third possible implementation manner, the processor is specifically configured to: according to the DRX cycle, the terminal identifier The function relationship with the terminal group identifier, determining the terminal group identifier; the function of the terminal group identifier, the size of the frequency domain resource occupied by the paging message, and the frequency domain resource group identifier, determining the resource block group identifier; according to the frequency domain resource group The mapping relationship between the identifier and the location of the frequency domain resource determines the location of the frequency domain resource mapped by the determined frequency domain resource group identifier.

 With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner, the mapping relationship is pre-agreed by the network end device and the terminal.

 In conjunction with the third possible implementation of the fifth aspect, in a fifth possible implementation, the signal receiver is further configured to receive the mapping relationship that is sent by the network device.

 With reference to the fifth possible implementation manner of the fifth aspect, in a sixth possible implementation, the signal receiver is specifically configured to receive, by the network device, a static, semi-static or dynamic manner The mapping relationship.

In combination with the fifth aspect, or any of the first to sixth possible implementations of the fifth aspect In an implementation manner, in a seventh possible implementation, the terminal identifier includes: an International Mobile Subscriber Identity (IMSI), a Radio Network Temporary Identity (RNTI), an International Mobile Equipment Identity (IMEI), or a Temporary Mobile Subscriber Identity (TMSI).

 According to a sixth aspect, a network device is provided, including: a processor, configured to obtain a terminal identifier of a terminal that is to receive a paging message; and according to a frequency of discontinuous reception of a DRX cycle, the terminal identifier, and a paging message A function of the size of the domain resource, determining a frequency domain resource location where the paging message is located; and a signal transmitter, configured to send the paging message on the determined frequency domain resource location.

 With reference to the sixth aspect, in a first possible implementation, the processor is further configured to determine, according to a function relationship between the DRX cycle, the terminal identifier, and a preset offset, where the paging message is located. The time domain resource location; wherein, the offset satisfies: the determined time domain resource location is different from the time domain resource location where the system information is located; the signal transmitter is specifically configured to determine the time domain resource location And transmitting the paging message on the determined frequency domain resource location.

 With reference to the sixth aspect, in a second possible implementation manner, the processor is further configured to: determine, according to a functional relationship between the DRX cycle and the terminal identifier, a time domain resource location where the paging message is located; And when the determined time domain resource location is the same as the time domain resource location where the system message is located, instructing the signal transmitter to send a system message at the determined time domain resource location without transmitting the paging message; The device is specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, send the paging message on the determined time domain resource location and the determined frequency domain resource location.

 With reference to the sixth aspect, or the first or the second possible implementation manner of the sixth aspect, in a third possible implementation, the processor is specifically configured to: according to the DRX cycle, the terminal identifier The function relationship with the terminal group identifier, determining the terminal group identifier; the function of the terminal group identifier, the size of the frequency domain resource occupied by the paging message, and the frequency domain resource group identifier, determining the frequency domain resource group identifier; The mapping relationship between the group identifier and the frequency domain resource location determines the frequency domain resource location mapped by the determined frequency domain resource group identifier.

With reference to the third possible implementation manner of the sixth aspect, in a fourth possible implementation manner, the mapping relationship is pre-agreed by the network end device and the terminal. In conjunction with the third possible implementation of the sixth aspect, in a fifth possible implementation, the signal transmitter is further configured to notify the terminal of the mapping relationship.

 With reference to the fifth possible implementation manner of the sixth aspect, in a sixth possible implementation, the signal transmitter is specifically configured to: notify the mapping relationship by using a static, semi-static or dynamic notification manner To the terminal.

 With reference to the sixth aspect, or any one of the first to the sixth possible implementation manners of the sixth aspect, in a seventh possible implementation manner, the terminal identifier includes: an international mobile subscriber identity IMSI, Radio Network Temporary Identity RNTI, International Mobile Equipment Identity Code IMEI or Temporary Mobile Subscriber Identity TMSI.

 The method provided by the embodiment of the present invention determines the frequency domain resource location where the paging message is located according to the relationship between the DRX cycle, the terminal identifier, and the size of the frequency domain resource occupied by the paging message, without using the PDCCH (or EPDCCH) to send the The frequency domain resource location, so that the UE does not need to blindly detect the PDCCH (or EPDCCH) to determine the frequency domain resource location where the paging message is located, and solves that the UE consumes more processing resources in order to determine the frequency domain resource location where the PDSCH carrying the paging message is located. The problem. DRAWINGS

 FIG. 1 is a schematic flowchart of a method for receiving a paging message according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a plurality of consecutive frequency domain resource locations in a frequency domain of the same terminal group identifier mapping; FIG. Identifying a schematic diagram of mapping a plurality of frequency domain resource locations that are discontinuous in the frequency domain; FIG. 4 is a schematic diagram of an OFDM symbol used to transmit a PBCH;

 FIG. 5 is a schematic flowchart of a method for sending a paging message according to an embodiment of the present invention; FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

 FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention; FIG. 8 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another network device according to an embodiment of the present invention. detailed description

 In order to solve the problem that the UE needs to process more resources in order to determine the location of the frequency domain resource where the PDSCH carrying the paging message is located, the embodiment of the present invention first provides a method for receiving a paging message, and the specific process diagram of the method is shown in the following figure. As shown in Figure 1, the main steps are as follows:

 Step 11: The terminal determines, according to a discontinuous reception (DRX) period, a terminal identifier (UE_ID) of the terminal, and a frequency domain resource occupied by the paging message, to determine a frequency domain resource where the paging message is located. Location

 For example, the terminal may determine the terminal group identifier according to the function relationship between the DRX cycle, the terminal identifier, and the terminal group identifier; and then, according to the terminal group identifier, the size of the frequency domain resource occupied by the paging message, and the frequency domain resource group. The function relationship of the identifier determines the frequency domain resource group identifier. Finally, the frequency domain resource location mapped by the determined frequency domain resource group identifier is determined according to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location.

 Generally, the terminal identifier can be, but is not limited to, an IP Multimedia Subsystem International Mobile Subscriber Identity (IMSI), a Radio Network Temporary Identity (RNTI), and an International Mobile Equipment Identity (International Mobile). Equipment Identity, IMEI) or Temporarily Mobile Equipment Identity (TMSI) and so on. Alternatively, the terminal identifier obtained by the network device may be, but is not limited to, determined according to the IMSI RNTL IMEI or TMSI of the terminal.

 Specifically, the specific implementation of step 11 may include the following sub-steps:

Sub-step 1: According to the DRX cycle and the terminal identifier (UE ID), the terminal group identifier N _{group is} determined; for example, when nB>T, N _groU p can be calculated according to the following formula [1]:

Ng p=(UE—ID mod N) && (floor(UE—ID/N) mod Ns) [ 1 ] When nB≤T, N _group can be calculated according to the following formula [2]:

 The description of each parameter in the above formula is as follows:

T indicates the DRX cycle, and the network device can be in the system message block (System Information Block, SIB) 2 broadcast this parameter to the terminal. In general, T can be 32, 64, 128 or 256, etc., and the unit is a radio frame.

 N=min(T , nB) , which is the minimum value in DRX and nB, in units of radio frames. The nB can also be broadcasted by the network device in SIB2, and its value can be 4T, 2T, Τ, T / 2, T / 4, T / 8, T / 16 or T / 32, the unit is Wireless frame.

 UE_ID = IMSI mod 1024.

 Ns = max(l, ηΒ/Τ).

Sub-step 2: determining the frequency domain resource group identifier according to the terminal group identifier N _group , the frequency domain resource size occupied by the paging message, and the function relationship of the frequency domain resource group identifier;

 Sub-step 3: Determine the frequency domain resource location mapped by the determined frequency domain resource group identifier according to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location.

In the embodiment of the present invention, the terminal may pre-store the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location, so that after determining the frequency domain resource group identifier corresponding to the terminal group identifier N _groU p, the terminal may pass the mapping. The query of the relationship determines the location of the frequency domain resource corresponding to the identified frequency domain resource group identifier. For example, if the number of physical resource blocks (PRBs) occupied by the paging message is NPRB, and the set of NPRB PRBs occupied by the paging message is called a resource block group. Then, when the number of PRBs included in the system bandwidth is N _Q , the maximum number of resource block groups that can be included in the system bandwidth can be calculated according to the following formula [3].

 Where floor(x) is a rounding down of X.

Based on the above formula [3], when the system bandwidth is 3M, N ₀ =15. If NPRB=6 is assumed, it can be calculated that the system bandwidth can include two resource block groups. For convenience of explanation, it may be assumed that the two resource block groups are the first resource block group and the second resource block group, respectively. The functional relationship between the identifiers of the two resource block groups (0 and 1 respectively) and the terminal group identifier N _group can be:

The N _group satisfying the following formula [4] corresponds to the first resource block group:

N _gr o _U p mod [4] The N _group satisfying the following formula [5] corresponds to the second resource block group:

 Where ( X ) mod ( y ) denotes x to y modulo operation.

After obtaining the mapping relationship between the identifiers of the two resource block groups and the terminal group identifier N _groU p , the terminal may search for the group group identifier N _group according to the mapping relationship between the identifier of the resource block group and the frequency domain resource location. The frequency domain resource location corresponding to the identifier of the corresponding resource block group (for example, the identifier is 1).

Generally, in the mapping relationship between the identifier of the resource block group and the location of the frequency domain resource, the identifier of the same resource block group can be collectively mapped to one resource block group, as shown in FIG. 2; or the same resource block group. The identity can be discretely mapped to a resource block group, as shown in Figure 3. It can be seen from FIG. 2 that N _group mod NRBG=0 or Ng _roU p mod NRB _G =l maps are consecutive PRBs in the frequency domain; and as can be seen from FIG. 3, N _groU p mod NRBG=0 Or N _GROUP mod NRBG=1 maps are multiple PRBs that are discontinuous in the frequency domain.

 In the embodiment of the present invention, the mapping relationship between the resource block group identifier and the frequency domain resource location may be pre-agreed by the network end device and the terminal, or may be determined by the network end device, and then the determined mapping relationship is notified to the terminal. After determining the resource block group identifier according to the function relationship between the DRX period, the terminal identifier of the terminal itself, and the size of the frequency domain resource occupied by the paging message, the terminal determines the frequency domain corresponding to the resource block group identifier according to the mapping relationship. The location of the resource, so that the terminal can know which frequency domain resource location it can receive paging messages.

 Similarly, the size of the frequency domain resource occupied by the paging message may also be notified to the terminal by the size of the frequency domain resource occupied by the network device and the terminal.

In the embodiment of the present invention, the network end device may notify the terminal of the mapping relationship between the resource block group identifier and the frequency domain resource location by using a static, semi-static or dynamic notification manner. Alternatively, the mapping relationship may be preset in the terminal, and the source of the mapping relationship is not limited in the embodiment of the present invention. It should be noted that, when the network device uses the static notification mode, the network device may notify the terminal by carrying the mapping relationship in the system message; In the notification mode, the network device may specifically notify the terminal of the mapping relationship in the Radio Resource Control (RRC) common signaling or the RRC dedicated signaling; when the network device uses the dynamic notification mode The network end device may specifically notify the terminal of the mapping relationship by using a control channel.

 Similarly, the network device can notify the terminal of the size of the frequency domain resource occupied by the paging message by using a static, semi-static or dynamic notification manner. Or, the size of the frequency domain resource occupied by the paging message may be preset in the terminal, and the source of the frequency domain resource occupied by the paging message obtained by the terminal is not used in the embodiment of the present invention. limited. When the network device uses the static notification mode, the network device may notify the terminal by using the size of the frequency domain resource occupied by the paging message in the system message; The network end device may specifically notify the terminal of the size of the frequency domain resource occupied by the paging message in the Radio Resource Control (RRC) public signaling or the RRC dedicated signaling; When the dynamic notification mode is used, the network end device may specifically notify the terminal of the size of the frequency domain resource occupied by the paging message by using the control channel.

 Step 12: The terminal receives the paging message at the determined location of the frequency domain resource.

 It should be noted that, in the method for receiving a paging message provided by the embodiment of the present invention, in addition to a new determination manner for the location of the frequency domain resource where the paging message is located, a paging message is further proposed. Several new ways of determining the location of the time domain resource.

 Before the method for determining the location of the time domain resource in which the paging message is located is provided, the disadvantages of the method for determining the location of the time domain resource in which the paging message is used in the prior art are performed. The following analysis shows:

According to the prior art, the network end device can calculate a paging frame (Paging Frame, PF) and a paging moment of the PDSCH for transmitting the paging message according to a specified algorithm of the identifier of the time domain resource occupied by the paging message. Paging Occasion, PO ), and then transmitting PDCCH (or EPDCCH) and PDSCH according to the determined PF and PO. However, in practical applications, the radio frame corresponding to the PF and the PO determined according to the specific algorithm may not be used to transmit the PDSCH carrying the paging message. For example, for the communication scenario of the basement, due to the transmission of system messages may be The enhancement method is used to overcome the penetration loss, and the enhanced system message may occupy all resources in the PDSCH, resulting in no additional frequency domain resources for transmitting paging messages.

 Specifically, taking the Physical Broadcast Channel (PBCH) as an example, in the current LTE system, the PBCH will occupy the middle 72 subcarriers in the frequency domain, and in the time domain, it will be sent every 10 ms, and the sending position thereof. The first four orthogonal frequency division multiplexing (OFDM) symbols are located in the first slot of the 0th subframe of each frame. As shown in the port diagram 4, the OFDM symbol completely within the area enclosed by the dotted line is the transmission position of the above PBCH. Further, the symbol / in Fig. 4 indicates the number of OFDM in the slot. The content change period of the PBCH is 40 ms, that is, the content of the PBCH does not change within 40 ms of one cycle, but the content of the PBCH transmitted in the adjacent two cycles is different.

 In a communication scenario such as the basement as described above, when it is necessary to enhance the transmission of the PBCH in order to overcome the penetration loss, all the OFDM of the intermediate 72 subcarriers of each frame within the content change period (ie, 40 ms) of the PBCH may be used. The symbol is used to repeatedly transmit the PBCH. In this way, for a 1.4 M bandwidth LTE system, since each frame includes only 72 subcarriers in the frequency domain, even if a paging message needs to be transmitted during the content change period of the PBCH according to the above specific algorithm, the content is The frequency domain resources included in the change period can only transmit PBCH, and no other frequency domain resources can be used to transmit paging messages.

 Similarly, when other system information is enhanced for transmission in some radio frames using similar methods as described above, it may also occur that paging messages cannot be transmitted in the radio frames.

 In the embodiment of the present invention, the method for determining the location of the time domain resource in which the paging message is located in the prior art is improved to avoid the radio frame and the enhanced transmission system information for transmitting the paging message. The radio frame conflicts and the paging message cannot be sent, so that the terminal cannot receive the paging message at the determined time domain resource location.

 The method for determining the location of the time domain resource where the paging message is located in the embodiment of the present invention is specifically described below:

 The first way:

Determined according to the relationship between the DRX cycle, the terminal identifier of the terminal, and the preset offset The location of the time domain resource where the paging message is located.

 Wherein, the offset mentioned here satisfies: the time domain resource location determined according to the above mapping relationship is different from the time domain resource location where the system information is located.

 Specifically, when the determined time domain resource location is the system frame number of the PF, in the first mode, the system frame number (SFN) of the PF may be determined by the following formula [6]:

 SFN mod T= (T div N)*(UE—ID mod N) + PFoffset [6] The description of each parameter in the above formula [6] is as follows:

 The SFN indicates the system frame number of the radio frame used to transmit the paging message, that is, the time-frequency resource location where the paging message is located, and the value ranges from 0 to 1023.

 T represents the DRX cycle, and the network device can broadcast this parameter to the terminal in the System Information Block (SIB) 2. In general, T can be 32, 64, 128 or 256, etc., and the unit is a radio frame.

 N=min(T , nB) , which is the minimum value in DRX and nB, in units of radio frames. Among them, nB can also be broadcasted by the network device in SIB2, and its value can be 4T, 2T, Τ, T / 2, T / 4, T / 8, T / 16 or T / 32, the unit is Wireless frame.

 UE_ID = IMSI mod 1024. The IMSI used to calculate the UE-ID may also be replaced by RNTI, IMEI or TMSI). In the embodiment of the present invention, IMSI, RNTL IMEI and TMSI can be collectively referred to as terminal identifiers.

 The PFoffset is a paging message offset (Paging frame offset), which is a preset offset as described in the embodiment of the present invention, which is generally an integer.

 For example, it is assumed that the transmission of the PBCH for transmitting the system message starts with the radio frame 0, and each of the PBCHs occupies 4 radio frames, and the transmission period of the PBCH is 32 radio frames. Then, the number of the radio frame used to transmit the PBCH can be: (0, 1, 2, 3), (32, 33, 34, 35), ... (32*k, 32*k+ l , 32*k+2, 32*k+3).

Suppose PFoffset is equal to 7, T=32, ηΒ= ( 1/16 ) Τ, Ν=2, UE ID mod Ν is 0 or 1, according to SFN mod T= (T div N)*(UE—ID mod N) + PFoffset, the number of the starting radio frame for determining the paging message to be transmitted may be: 16*n+7, where n=0, 1 , 2, 3, .... Further Ground, if it is assumed that enhanced transmission of paging messages is required, then more than one subframe may be required.

The PDSCH transmits a paging message, and the number of radio frames used for enhancing the transmission of the paging message in each DRX cycle is 2, and then, according to the determined number, the transmission paging message can be further determined. The number of the radio frame can be: 16*n+7, 16*n+8, where n=0, 1 , 2, 3, ....

 As can be seen from this example, if the PFoffset is not used to adjust the radio frame used to transmit the paging message, the number of the radio frame transmitting the paging message includes: 1 and 32, and so on. Radio frames having these numbers are used both for transmitting paging messages and for transmitting system messages, and thus are likely to cause the problem that paging messages cannot be transmitted in the radio frames as described above. When the radio frame for transmitting the paging message is adjusted by using PFoffset, the radio frame for transmitting the paging message and the radio frame for transmitting the system message are staggered in the time domain, thereby avoiding the above problem.

 In the embodiment of the present invention, the PFoffset may be indicated and indicated to the UE by adding an information element or field in the Paging Control Channel-Config (PCCH-Config) included in the existing SIB2. The information element and the length of the field can each be one or more bits.

 Generally, the network device can determine a plurality of different PFoffsets according to the time domain resources in which the system messages are located. Subsequently, the PFoffset may be selected from the determined PFoffsets and sent to the UE, to instruct the UE to substitute the PFoffset into the above formula [6] to calculate the SFN, and receive the paging message according to the calculated SFN.

 The pseudo code below lists the value of PFoffset which can be determined in the values l(numl) and 2 (num2). The numl and num2 may be predetermined by the network device.

 PCCH-Config:: = SEQUENCE {

 defaultPagingCycle ENUMERATED {

 rB2, rf64, rfl28, rf256},

 nB ENUMERATED {

 fourT, twoT, oneT, halfT, quarter T, oneEighthT,

oneSixteenthT, oneThirtySecondT} PFoffset ENUMERATED {numl, num2} It should be noted that even if both the system message and the paging message are sent by the same PF, in the embodiment of the present invention, the following formula [7] can be used to calculate the PF for sending and searching. The subframe number i_s of the P0 of the call message is such that the PO used to send the paging message in the PF is different from the PO used to send the system message:

 I_s = floor(UE_ID/N) mod Ns+PSFoffset [7] where PSFoffset is a preset offset, which is determined according to the subframe number of the PO occupied by the system message in the PF, which satisfies: The i-s calculated by the formula [7] is different from the subframe number of the PO occupied by the system message in the PF.

 By using the first method, the time domain resource location determined by the terminal is different from the time domain resource location where the system information is located, and the specific implementation manner of the foregoing step 12 may include: determining the The paging message is received on the time domain resource location and the frequency domain resource location.

 The second way:

 First, the time-frequency resource location where the paging message is located is determined according to a functional relationship between the DRX cycle and the terminal identifier of the terminal. For example, you can use the following formula [8] to calculate the system frame number of PF SFN:

 SFN=(T div N)*(UE_ID mod N) [8] Then, if the determined time domain resource location is the same as the time domain resource location where the system message is located, the terminal determines the time domain resource location and If the location of the time domain resource is not the same as the time domain resource location of the system message, the specific implementation of the foregoing step 12 may include: The terminal receives the paging message on the determined time domain resource location and the frequency domain resource location determined by performing step 11.

 A specific implementation code for the second method is as follows:

 IfTl <= (T div N)*(UE—ID mod N)<= T2

 SFN mod T = null;

 Else

 SFN mod T=(T div N)*(UE—ID mod N)

End Where [T1, T2] represents the time at which a system message (such as PBCH) is transmitted.

 According to the receiving method of the paging message provided by the embodiment of the present invention, the method determines the frequency domain resource location where the paging message is located according to the functional relationship between the DRX cycle and the terminal identifier, and does not need the PDCCH (or EPDCCH) to send the frequency domain resource. The problem is that the UE does not need to detect the PDCCH (or EPDCCH) by the blind detection to determine the location of the frequency domain resource where the paging message is located, and solves the problem that the UE consumes more processing resources in order to determine the location of the frequency domain resource where the PDSCH carrying the paging message is located.

 For the same inventive concept as the method for receiving the paging message provided by the embodiment of the present invention, the embodiment of the present invention further provides a method for sending a paging message, and a specific process diagram of the method is shown in FIG. 5, including the following. The main steps are as follows:

 Step 51: The network end device obtains the terminal identifier of the terminal that is to receive the paging message.

 In this embodiment of the present invention, the terminal identifier obtained by the network device may be, but is not limited to, an IMSI, an RNTI, an IMEI, or a TMSI of the terminal. Alternatively, the terminal identifier obtained by the network device may be, but is not limited to, determined according to the IMSI, RNTL IMEI or TMSI of the terminal.

 Step 52: Determine a frequency domain resource location where the paging message is located according to a DRX cycle, a obtained terminal identifier, and a function of a size of a frequency domain resource occupied by the paging message.

 Step 53: Send a paging message on the determined frequency domain resource location.

 For the above step 52, the specific implementation manner may include the following sub-steps:

Sub-step 1: determining the terminal group identifier N _group corresponding to the terminal identifier according to the DRX period and the obtained terminal identifier (UE_ID);

For example, when nB>T, N _group can be calculated according to the formula [1] described above; and when nB≤T, N _groU p can be calculated according to the formula [2] described above.

 Sub-step 2: determining the frequency domain resource group identifier according to the terminal group identifier, the size of the frequency domain resource occupied by the paging message, and the function relationship of the frequency domain resource group identifier;

 Sub-step 3: Determine the frequency domain resource location mapped by the determined frequency domain resource group identifier according to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location.

In the embodiment of the present invention, the network end device may pre-store the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location, thereby determining the frequency domain resource group identifier corresponding to the terminal group identifier N _groU p After that, the frequency domain resource location corresponding to the determined frequency domain resource group identifier may be determined by querying the mapping relationship.

For example, if the number of physical resource blocks (PRBs) occupied by the paging message is NPRB, and the set of NPRB PRBs occupied by the paging message is called a resource block group. Then, when the number of PRBs included in the system bandwidth is N ₀ , the maximum number of resource block groups that the system bandwidth can include can be calculated according to the formula [3] described above.

Further, the identifier of the first resource block _group corresponding to the calculated N _group may be determined according to the formula [4] and the formula [5] described above.

Finally, after obtaining the identifier of the resource block _group corresponding to the terminal group identifier N _group , the network end device can search for the terminal group identifier N _group according to the mapping relationship between the identifier of the pre-stored resource block group and the frequency domain resource location. The frequency domain resource location corresponding to the identifier of the corresponding resource block group (for example, the identifier is 1).

Generally, in the mapping relationship between the identifier of the resource block group and the location of the frequency domain resource, the identifier of the same resource block group can be collectively mapped to one resource block group, as shown in FIG. 2; or the same resource The identity of a block group can be discretely mapped to a resource block group, as shown in Figure 3. It can be seen from FIG. 2 that N _group mod NRBG=0 or N _groU p mod NRB _G =l maps are consecutive PRBs in the frequency domain; and as can be seen from FIG. 3, N _groU p mod NRBG=0 Or N _GROUP mod NRBG=1 maps are multiple PRBs that are discontinuous in the frequency domain.

 In the embodiment of the present invention, the mapping relationship between the resource block group identifier and the frequency domain resource location may be pre-agreed by the network end device and the terminal, or may be determined by the network end device, and then the determined mapping relationship is notified to the terminal. After determining the resource block group identifier according to the function relationship between the DRX period, the terminal identifier of the terminal itself, and the size of the frequency domain resource occupied by the paging message, the terminal determines the frequency domain corresponding to the resource block group identifier according to the mapping relationship. The location of the resource, so that the terminal can know which frequency domain resource location it can receive paging messages.

In the embodiment of the present invention, the network end device may notify the terminal of the mapping relationship between the resource block group identifier and the frequency domain resource location by using a static, semi-static or dynamic notification manner. Or, the mapping relationship The source of the mapping relationship is not limited in the embodiment of the present invention. It should be noted that, when the network device uses the static notification mode, the network device may notify the terminal by carrying the mapping relationship in the system message; when the network device uses the semi-static notification mode, the network The end device may specifically notify the terminal in the radio resource control (RRC) common signaling or the RRC dedicated signaling; when the network device uses the dynamic notification mode, the network device specifically The mapping relationship can be notified to the terminal by using the control channel.

 It should be noted that, in the method for transmitting a paging message provided by the embodiment of the present invention, in addition to a new determination manner for the location of the frequency domain resource where the paging message is located, the following How to determine the location of the time domain resource where the paging message is located:

 The first way:

 The time domain resource location where the paging message is located is determined according to the DRX cycle, the obtained terminal identifier of the terminal to be received the paging message, and the preset offset.

 Wherein, the offset mentioned here satisfies: the time domain resource location determined according to the above mapping relationship is different from the time domain resource location where the system information is located.

 Specifically, when the determined time domain resource location is the system frame number of the PF, in the first mode, the system system frame number SFN of the PF, that is, the SFN mod T, may be determined by using the formula [6] described above. = (T div N)*(UE—ID mod N) + PFoffset„

 For example, it is assumed that the transmission of the PBCH for transmitting the system message starts with the radio frame 0, and each of the PBCHs occupies 4 radio frames, and the transmission period of the PBCH is 32 radio frames. Then, the number of the radio frame used to transmit the PBCH may be: (0, 1, 2, 3), (32, 33, 34, 35), (32*k, 32*k+l, 32*k+ 2, 32*k+3).

Suppose PFoffset is equal to 7, T=32, ηΒ= ( 1/16 ) Τ, Ν=2, UE ID mod Ν is 0 or 1, according to SFN mod T= (T div N)*(UE—ID mod N) + PFoffset, the number of the starting radio frame for determining the paging message to be transmitted may be: 16*n+7, where n=0, 1 , 2, 3, .... Further, if it is assumed that an enhanced transmission of the paging message is required, then a PDSCH of more than one subframe may be required to transmit one paging message, and H is not used for enhancing the transmission of the paging message in each DRX cycle. The number of radio frames is 2, then, according to the determined number, it may be further determined that the number of the radio frame used for the enhanced transmission paging message may be: 16*n+7, 16*n+8, where n =0, 1 , 2, 3 , ....

 As can be seen from this example, if the PFoffset is not used to adjust the radio frame used to transmit the paging message, the number of the radio frame transmitting the paging message includes: 1 and 32, and so on. Radio frames having these numbers are used both for transmitting paging messages and for transmitting system messages, and thus are likely to cause the problem that paging messages cannot be transmitted in the radio frames as described above. When the radio frame for transmitting the paging message is adjusted by using PFoffset, the radio frame for transmitting the paging message and the radio frame for transmitting the system message are staggered in the time domain, thereby avoiding the above problem.

 In the embodiment of the present invention, the PFoffset may be indicated and indicated to the UE by adding an information element or field in the Paging Control Channel-Config (PCCH-Config) included in the existing SIB2. The information element and the length of the field can each be one or more bits.

 Generally, the network device can determine a plurality of different PFoffsets according to the time domain resources in which the system messages are located. Subsequently, a PFoffset may be selected from the determined PFoffsets and sent to the UE, to instruct the UE to substitute the PFoffset into the formula [6] to calculate the SFN, and receive the paging message according to the calculated SFN.

 The pseudo code below lists the value of PFoffset which can be determined in the values l(numl) and 2 (num2). The numl and num2 may be predetermined by the network device.

 PCCH-Config:: = SEQUENCE {

 defaultPagingCycle ENUMERATED {

 rB2, rf64, rfl28, rf256},

 nB ENUMERATED {

 fourT, twoT, oneT, halfT, quarter T, oneEighthT,

oneSixteenthT, oneThirtySecondT} PFoffset ENUMERATED {num 1 , num2 } , it should be noted that even if both the system message and the paging message are sent by the same PF, the present invention In the embodiment, the subframe number i_s of the PO for transmitting the paging message in the PF may be further calculated by using the formula [7] described above, so that the PO in the PF is used to send the paging message. It is different from the PO used to send system messages.

 Based on the location of the time domain resource determined in the first manner, the specific implementation of the foregoing step 53 may include: the network device sends a paging message on the determined time domain resource location and the frequency domain resource location.

 The second way:

 First, the time-frequency resource location is determined according to a functional relationship between the DRX cycle and the obtained terminal identity of the terminal to receive the paging message. For example, the system frame number SFN of the PF can be calculated using the formula [8] described above.

 Then, if the determined time domain resource location is the same as the time domain resource location where the system message is located, the network end device sends the system message at the determined time domain resource location without sending the paging message; and if the determined time domain is The location of the resource is different from the location of the time domain resource, and the manner in which the network device sends the paging message on the determined location of the frequency domain may include: determining, by the network device, the location of the time domain resource and determining A paging message is sent on the location of the frequency domain resource.

 A specific implementation code for the second method is as follows:

 IfTl <= (T div N)*(UE—ID mod N)<= T2

 SFN mod T = null;

 Else

 SFN mod T=(T div N)*(UE—ID mod N)

 End

 Where [T1, T2] represents the time at which a system message (such as PBCH) is transmitted.

According to the method for transmitting a paging message provided by the embodiment of the present invention, the method determines the frequency domain resource location where the paging message is located according to the function relationship between the DRX periodic terminal identifier and the size of the frequency domain resource occupied by the paging message, without The PDCCH (or EPDCCH) is used to transmit the frequency domain resource location, so that the UE does not need to blindly detect the PDCCH (or EPDCCH) to determine the frequency domain resource location where the paging message is located, and solves the frequency domain in which the UE locates the PDSCH carrying the paging message. Resource location It takes more time to deal with resources.

 According to the inventive concept of the method for receiving a paging message provided by the embodiment of the present invention, the embodiment of the present invention further provides a terminal, as shown in FIG. 6, for solving a frequency domain in which a UE is configured to determine a PDSCH carrying a paging message. The resource location consumes more processing resources. The terminal specifically includes the following main functional units as shown in FIG. 6:

 The frequency domain resource location determining unit 61 is configured to determine, according to a discontinuous reception DRX cycle, a terminal identifier of the terminal, and a size of a frequency domain resource occupied by the paging message, to determine a frequency domain resource location where the paging message is located;

 The receiving unit 62 is configured to receive a paging message on the determined frequency domain resource location.

 Optionally, the terminal provided by the embodiment of the present invention may further include a time domain resource location determining unit 63 as shown in FIG. 6. The time domain resource location determining unit 63 may be configured to determine a time domain resource location where the paging message is located according to a function relationship between the DRX cycle, the terminal identifier, and the preset offset. Wherein, the offset satisfies: the determined time domain resource location is different from the time domain resource location where the system information is located.

 Based on the time domain resource location determined by the time domain resource location determining unit 63, the receiving unit 62 may be specifically configured to: receive the paging message on the determined time domain resource location and the frequency domain resource location.

 In the embodiment of the present invention, the time domain resource location determining unit 63 may also determine the time domain resource location in other manners. For example, the time domain resource location where the paging message is located may be determined according to a functional relationship between the DRX cycle and the terminal identity. When the time domain resource location determining unit 63 determines the time domain resource location in this manner, the terminal shown in FIG. 6 may further include an execution unit. The execution unit is configured to receive the paging message from the determined time domain resource location and the frequency domain resource location when the determined time domain resource location is the same as the time domain resource location where the system message is located. At the same time, the receiving unit 62 may be specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, receive the paging on the determined time domain resource location and the determined frequency domain resource location. Message.

 In a specific implementation manner of the function of the frequency domain resource location determining unit 61, in the embodiment of the present invention, the frequency domain resource location determining unit 61 may be divided into the following functional subunits:

The terminal group identification determining subunit is configured to use the DRX cycle, the terminal identifier, and the terminal group identifier according to the DRX cycle. Function relationship, determining the terminal group identifier;

 a resource block group identification determining unit, configured to determine a resource block group identifier according to a terminal group identifier, a function of a frequency domain resource occupied by the paging message, and a function relationship of the frequency domain resource group identifier;

 The frequency domain resource location determining sub-unit, in the embodiment of the present invention, according to the frequency domain resource group identifier and the frequency domain resource location, the foregoing mapping relationship may be pre-agreed by the network end device and the terminal; or may be sent by the network end device To the terminal, and received by the receiving unit 62 of the terminal. Specifically, the network device can transmit the mapping relationship in a static, semi-static or dynamic manner.

 For the inventive concept of the method for sending a paging message according to the embodiment of the present invention, the embodiment of the present invention further provides a network device as shown in FIG. 7, which mainly includes the following functional units:

 The identifier obtaining unit 71 is configured to obtain a terminal identifier of the terminal that is to receive the paging message, and the frequency domain resource location determining unit 72 is configured to use, according to the discontinuous reception DRX period, the terminal identifier obtained by the identifier obtaining unit 71, and the paging message. The function of the size of the frequency domain resource, determining the location of the frequency domain resource where the paging message is located;

 The sending unit 73 is configured to send a paging message on the determined frequency domain resource location.

 Optionally, the network device provided by the embodiment of the present invention may further include a time domain resource location determining unit 74 as shown in FIG. 7. The time domain resource location determining unit 74 is specifically configured to determine a time domain resource location where the paging message is located according to a functional relationship between the DRX cycle, the terminal identifier, and a preset offset; wherein the offset satisfies: The location of the time domain resource is different from the location of the time domain resource where the system information is located. Based on the function of the time domain resource location determining unit 74, the sending unit 73 may be specifically configured to: the time domain resource location determined by the time domain resource location determining unit 74 and the frequency domain resource location determined by the frequency domain resource location determining unit 72. Send a paging message.

Optionally, the network device provided by the embodiment of the present invention may further include: a time domain resource location determining unit 74, configured to determine, according to a functional relationship between the DRX cycle and the terminal identifier, a time domain resource location where the paging message is located; And an execution unit, configured to: when the determined time domain resource location is the same as the time domain resource location where the system message is located, the network end device sends the system message at the determined time domain resource location without sending the paging message. Based on the function of the time domain resource location determining unit 74, the sending list The element 73 is specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, send the paging message on the determined time domain resource location and the determined frequency domain resource location.

 In an embodiment of the present invention, the frequency domain resource location determining unit 72 may be specifically divided into the following functional subunits:

 a terminal group identifier determining subunit, configured to determine a terminal group identifier according to a function relationship between the DRX period, the terminal identifier, and the terminal group identifier;

 a frequency domain resource group identifier determining subunit, configured to determine a frequency domain resource group identifier according to a terminal group identifier, a function of a frequency domain resource occupied by the paging message, and a function relationship of the frequency domain resource group identifier;

 The frequency domain resource location determining sub-unit is configured to provide the foregoing mapping relationship to the terminal in a pre-agreed manner according to the embodiment of the present invention in the frequency domain resource group identifier and the frequency domain resource location. Alternatively, the mapping unit may notify the terminal of the mapping relationship. For example, the sending unit 73 may specifically notify the terminal of the mapping relationship by using a static, semi-static or dynamic notification manner.

 For the inventive concept of the method for receiving a paging message according to the embodiment of the present invention, the embodiment of the present invention further provides a terminal as shown in FIG. 8, which mainly includes the following functional entities:

 The processor 81 is configured to determine, according to a discontinuous reception DRX cycle, a terminal identifier of the terminal, and a size of a frequency domain resource occupied by the paging message, to determine a frequency domain resource location where the paging message is located, and a signal receiver 82. Receiving a paging message at the determined frequency domain resource location.

 Optionally, the processor 81 is further configured to: determine, according to a function relationship of a DRX cycle, a terminal identifier, and a preset offset, a time domain resource location where the paging message is located; where the offset satisfies: The location of the time domain resource is different from the location of the time domain resource where the system information is located. The signal receiver 82 is specifically configured to: receive a paging message on the determined time domain resource location and the determined frequency domain resource location.

Alternatively, the processor 81 may be further configured to: determine, according to a functional relationship between the DRX cycle and the terminal identifier, a time domain resource location where the paging message is located; and when the determined time domain resource location is the same as the time domain resource location where the system message is located. , indicating that the signal receiver 82 is not in the determined time domain resource location and A paging message is received at a frequency domain resource location. The signal receiver 82 is specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, receive the paging message on the determined time domain resource location and the determined frequency domain resource location. .

 Optionally, the processor 81 is specifically configured to: determine, according to a functional relationship between the DRX cycle, the terminal identifier, and the terminal group identifier, the terminal group identifier; according to the terminal group identifier, the size and frequency domain of the frequency domain resource occupied by the paging message. The function relationship of the resource group identifier determines the resource block group identifier; and determines the frequency domain resource location mapped by the determined frequency domain resource group identifier according to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location.

 The mapping relationship is pre-agreed by the network end device and the terminal; or may be sent by the network end device to the terminal and received by the signal receiver 82 of the terminal. For example, the signal receiver 82 can receive a mapping relationship that is sent by the network device in a static, semi-static or dynamic manner.

 For the inventive concept of the method for sending a paging message according to the embodiment of the present invention, the embodiment of the present invention further provides a network device as shown in FIG. 9, which mainly includes the following functional entities:

 The processor 91 is configured to obtain a terminal identifier of the terminal that is to receive the paging message, and determine, according to a function relationship between the discontinuous reception DRX period, the terminal identifier, and the size of the frequency domain resource occupied by the paging message, where the paging message is located. Frequency domain resource location;

 The signal transmitter 92 is configured to send a paging message on the frequency domain resource location determined by the processor 91. Optionally, the processor 91 is further configured to determine, according to a DRX cycle, a terminal identifier, and a preset offset, a time domain resource location where the paging message is located, where the offset satisfies: The time domain resource location is different from the time domain resource location where the system information is located. Based on this function of the processor 91, the signal transmitter 92 can be specifically configured to transmit a paging message at the determined time domain resource location and the determined frequency domain resource location.

Optionally, the processor 91 is further configured to: determine, according to a functional relationship between the DRX cycle and the terminal identifier, a time domain resource location where the paging message is located; when the determined time domain resource location is related to a time domain resource location where the system message is located At the same time, the indicator signal transmitter 92 transmits a system message at the determined time domain resource location without transmitting a paging message. Based on the function of the processor 91, the signal transmitter 92 is specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, A paging message is sent on the determined time domain resource location and the determined frequency domain resource location.

 Optionally, the processor 91 is specifically configured to: determine, according to a functional relationship between the DRX cycle, the terminal identifier, and the terminal group identifier, the terminal group identifier; according to the terminal group identifier, the size and frequency domain of the frequency domain resource occupied by the paging message. The function relationship of the resource group identifier determines the frequency domain resource group identifier; and determines the frequency domain resource location mapped by the determined frequency domain resource group identifier according to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location.

 In the embodiment of the present invention, the network end device may pre-agreed the foregoing mapping relationship with the terminal; or the signal transmitter 92 may notify the terminal of the mapping relationship. For example, the signal transmitter 92 may specifically notify the terminal by using a static, semi-static or dynamic notification manner.

 It should be noted that, in the embodiment of the present invention, the foregoing terminal identifiers may all be the IMSI, the RNTL IMEI, or the TMSI of the terminal, or the terminal identifiers may be determined according to the IMSI, the RNTL IMEI, or the TMSI of the terminal.

 The method provided by the embodiment of the present invention determines the frequency domain resource location where the paging message is located according to the relationship between the DRX cycle, the terminal identifier, and the size of the frequency domain resource occupied by the paging message, without using the PDCCH (or EPDCCH) to send the The frequency domain resource location, so that the UE does not need to blindly detect the PDCCH (or EPDCCH) to determine the frequency domain resource location where the paging message is located, and solves that the UE consumes more processing resources in order to determine the frequency domain resource location where the PDSCH carrying the paging message is located. The problem.

 Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of one or more computer program products embodied on a computer-usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a general purpose computer, a special purpose computer, An embedded processor or processor of another programmable data processing device to generate a machine such that instructions executed by a processor of a computer or other programmable data processing device are generated for implementation in a flow or a flow of flowcharts and/or Or a block diagram of a device in a box or a function specified in a plurality of boxes.

 The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

 These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

 Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in the < Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and modifications

Claims

Rights request 1. A method for receiving paging messages, characterized by including: The terminal determines the frequency domain resource location where the paging message is located based on the functional relationship between the discontinuous reception DRX cycle, the terminal identification of the terminal and the size of the frequency domain resource occupied by the paging message; in the determined frequency domain resource The paging message is received at the location. 2. The method of claim 1, characterized in that, the method further includes: The terminal determines the time domain resource location where the paging message is located based on the functional relationship between the DRX cycle, the terminal identification and a preset offset; wherein, the offset satisfies: so that the determined The time domain resource location is different from the time domain resource location where the system information is located; then The terminal receives the paging message at the determined frequency domain resource location, which specifically includes: the terminal receives the paging message at the determined time domain resource location and the determined frequency domain resource location. 3. The method of claim 1, characterized in that, the method further includes: The terminal determines the time domain resource location where the paging message is located based on the functional relationship between the DRX cycle and the terminal identifier; When the determined time domain resource location is the same as the time domain resource location where the system message is located, the terminal does not receive the paging message at the determined time domain resource location and frequency domain resource location; When the determined time domain resource location is different from the time domain resource location where the system message is located, the terminal receives the paging message at the determined frequency domain resource location, specifically including: The terminal receives the paging message at the determined time domain resource location and the determined frequency domain resource location. 4. The method according to any one of claims 1 to 3, characterized in that the terminal determines the frequency domain resource based on the functional relationship between the DRX cycle, the terminal identifier and the size of the frequency domain resource occupied by the paging message. The frequency domain resource location where the paging message is located specifically includes: The terminal determines the terminal group identification according to the functional relationship between the DRX cycle, the terminal identification and the terminal group identification; Determine the resource block group identifier based on the functional relationship between the terminal group identifier, the size of the frequency domain resources occupied by the paging message, and the frequency domain resource group identifier; According to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location, the frequency domain resource location mapped by the determined frequency domain resource group identifier is determined. 5. The method of claim 4, wherein the mapping relationship is pre-agreed between the network device and the terminal. 6. The method of claim 4, wherein the terminal obtains the mapping relationship in the following manner: The terminal receives the mapping relationship sent by the network device. 7. The method of claim 6, wherein the terminal receives the mapping relationship, which specifically includes: The terminal receives the mapping relationship sent by the network device in a static, semi-static or dynamic manner. 8. The method according to any one of claims 1 to 7, wherein the terminal identity includes: International Mobile Subscriber Identity IMSI, Wireless Network Temporary Identity RNTI, International Mobile Equipment Identity IMEI or Temporary Mobile Subscriber Identity TMSI. . 9. A method for sending paging messages, characterized by including: The network device obtains the terminal identification of the terminal to receive the paging message; Determine the frequency domain resource location where the paging message is located based on the functional relationship between the discontinuous reception DRX cycle, the terminal identifier and the size of the frequency domain resource occupied by the paging message; The paging message is sent at the determined frequency domain resource location. 10. The method of claim 9, wherein the method further includes: the network device determines the The time domain resource location where the paging message is located; wherein, the offset satisfies: so that the determined time domain resource location is different from the time domain resource location where the system information is located; then the determined frequency domain resource location is sent The paging message specifically includes: The network device sends at the determined time domain resource location and the determined frequency domain resource location. the paging message. 11. The method of claim 9, wherein the method further includes: the network device determines the time domain in which the paging message is located based on the functional relationship between the DRX cycle and the terminal identifier. resource location; When the determined time domain resource location is the same as the time domain resource location where the system message is located, the network device sends the system message at the determined time domain resource location without sending the paging message; When the domain resource location is different from the time domain resource location where the system message is located, the network device sends the paging message at the determined frequency domain resource location, specifically including: The network device sends the paging message at the determined time domain resource location and the determined frequency domain resource location. 12. The method according to any one of claims 9 to 11, characterized in that, the network device performs a function according to the DRX cycle, the terminal identification and the size of the frequency domain resources occupied by the paging message. relationship, determining the frequency domain resource location where the paging message is located, specifically including: The network device determines the terminal group identification according to the functional relationship between the DRX cycle, the terminal identification and the terminal group identification; Determine the frequency domain resource group identifier based on the functional relationship between the terminal group identifier, the size of the frequency domain resources occupied by the paging message, and the frequency domain resource group identifier; According to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location, the frequency domain resource location mapped by the determined frequency domain resource group identifier is determined. 13. The method of claim 12, wherein the mapping relationship is pre-agreed between the network device and the terminal. 14. The method of claim 12, further comprising: the network device notifying the terminal of the mapping relationship. 15. The method of claim 14, wherein the network device notifies the terminal of the mapping relationship, specifically including: The network device uses a static, semi-static or dynamic notification method to notify the terminal of the mapping relationship. 16. The method according to any one of claims 9 to 15, characterized in that the terminal identification includes: International Mobile Subscriber Identity IMSI, Wireless Network Temporary Identity RNTI, International Mobile Equipment Identity IMEI or Temporary Mobile Subscriber Identity TMSI. . 17. A terminal, characterized in that it includes: A frequency domain resource location determination unit configured to determine the frequency domain resource location where the paging message is located based on the functional relationship between the discontinuous reception DRX cycle, the terminal identification of the terminal, and the size of the frequency domain resource occupied by the paging message. ; A receiving unit, configured to receive the paging message at the determined frequency domain resource location. 18. The terminal according to claim 17, characterized in that, the terminal further includes: a time domain resource location determination unit, configured to determine according to the functional relationship between the DRX cycle, the terminal identification and a preset offset. , determine the time domain resource location where the paging message is located; wherein, the offset satisfies: making the determined time domain resource location different from the time domain resource location where the system information is located; then The receiving unit is specifically configured to: receive the paging message at the determined time domain resource location and frequency domain resource location. 19. The terminal according to claim 17, characterized in that, the terminal further includes: a time domain resource location determination unit, configured to determine the paging message according to the functional relationship between the DRX cycle and the terminal identification. The location of the time domain resource; An execution unit configured to not receive the paging message at the determined time domain resource location and frequency domain resource location when the determined time domain resource location is the same as the time domain resource location where the system message is located; the receiving unit Specifically used for: when the determined time domain resource location is different from the time domain resource location where the system message is located, receiving the paging message at the determined time domain resource location and the determined frequency domain resource location. 20. The terminal according to any one of claims 17 to 19, characterized in that the frequency domain resource location determination unit specifically includes: A terminal group identification determining subunit, configured to determine the terminal group identification based on the functional relationship between the DRX cycle, the terminal identification and the terminal group identification; The resource block group identification determination subunit is used to determine the resource block group identification based on the functional relationship between the terminal group identification, the size of the frequency domain resources occupied by the paging message, and the frequency domain resource group identification; Frequency domain resource location determination subunit, used to determine the frequency domain resource location based on the frequency domain resource group identifier and frequency domain resource location. 21. The terminal according to claim 20, wherein the mapping relationship is pre-agreed between the network device and the terminal. 22. The terminal according to claim 20, wherein the receiving unit is further configured to receive the mapping relationship sent by the network device. 23. The terminal according to claim 22, wherein the receiving unit is specifically configured to receive the mapping relationship sent by the network device in a static, semi-static or dynamic manner. 24. The terminal according to any one of claims 17 to 23, wherein the terminal identity includes: International Mobile Subscriber Identity IMSI, Wireless Network Temporary Identity RNTI, International Mobile Equipment Identity IMEI or Temporary Mobile Subscriber Identity TMSI. . 25. A network device, characterized by: including: An identification obtaining unit, used to obtain the terminal identification of the terminal to receive the paging message; A frequency domain resource location determination unit, configured to determine the frequency domain resource location where the paging message is located based on the functional relationship between the discontinuous reception DRX cycle, the terminal identifier, and the size of the frequency domain resource occupied by the paging message; A sending unit, configured to send the paging message at the determined frequency domain resource location. 26. The network device according to claim 25, characterized in that the network device further includes: A time domain resource location determination unit, configured to determine the time domain resource location where the paging message is located based on the functional relationship between the DRX cycle, the terminal identifier, and a preset offset; wherein, the offset Satisfies: The determined time domain resource location is different from the time domain resource location where the system information is located; The sending unit is specifically configured to: send the paging message at the determined time domain resource location and the determined frequency domain resource location. 27. The network device according to claim 25, characterized in that the network device further includes: A time domain resource location determination unit, configured to determine the time domain resource location where the paging message is located based on the functional relationship between the DRX cycle and the terminal identifier; An execution unit configured to, when the determined time domain resource location is the same as the time domain resource location where the system message is located, the network device sends the system message at the determined time domain resource location without sending the paging message; The sending unit is specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, send the paging at the determined time domain resource location and the determined frequency domain resource location. information. 28. The network device according to any one of claims 25 to 27, characterized in that the frequency domain resource location determination unit specifically includes: The terminal group identification determining subunit is used to determine the terminal group identification based on the functional relationship between the DRX cycle, the terminal identification and the terminal group identification; The frequency domain resource group identity determination subunit is used to determine the frequency domain resource group identity based on the functional relationship between the terminal group identity, the size of the frequency domain resources occupied by the paging message, and the frequency domain resource group identity; Frequency domain resource location determination subunit, used to determine the frequency domain resource location based on the frequency domain resource group identifier and frequency domain resource location. 29. The network device according to claim 28, wherein the mapping relationship is pre-agreed between the network device and the terminal. 30. The network device according to claim 28, wherein the sending unit is further configured to: notify the terminal of the mapping relationship. 31. The method of claim 30, wherein the sending unit is specifically configured to notify the terminal of the mapping relationship using a static, semi-static or dynamic notification method. 32. The network device according to any one of claims 25 to 31, wherein the terminal identification includes: International Mobile Subscriber Identity IMSI, Wireless Network Temporary Identity RNTI, International Mobile Equipment Identity IMEI or Temporary Mobile Subscriber Identifies TMSI. 33. A terminal, characterized in that it includes: A processor configured to determine the location of the frequency domain resource where the paging message is located based on the functional relationship between the discontinuous reception DRX cycle, the terminal identification of the terminal and the size of the frequency domain resource occupied by the paging message; A signal receiver, configured to receive the paging message at the determined frequency domain resource location. 34. The terminal according to claim 33, characterized in that, The processor is further configured to: determine the time domain resource location where the paging message is located based on the functional relationship between the DRX cycle, the terminal identification and a preset offset; wherein, the offset satisfies : making the determined time domain resource location different from the time domain resource location where the system information is located; the signal receiver is specifically configured to: receive the paging at the determined time domain resource location and the determined frequency domain resource location information. 35. The terminal according to claim 33, characterized in that, The processor is further configured to: determine the time domain resource location where the paging message is located based on the functional relationship between the DRX cycle and the terminal identifier; when the determined time domain resource location is consistent with the time domain where the system message is located When the resource locations are the same, instruct the signal receiver not to receive the paging message at the determined time domain resource location and frequency domain resource location; The signal receiver is specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, receive the search signal at the determined time domain resource location and the determined frequency domain resource location. Call message. 36. The terminal according to any one of claims 33 to 35, characterized in that, The processor is specifically configured to: determine a terminal group identity based on the DRX cycle, the functional relationship between the terminal identity and the terminal group identity; determine the terminal group identity, the size of the frequency domain resource occupied by the paging message and the frequency domain Determine the resource block group identifier according to the functional relationship of the resource group identifier; determine the frequency domain resource location mapped by the determined frequency domain resource group identifier according to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location. 37. The terminal according to claim 36, wherein the mapping relationship is pre-agreed between the network device and the terminal. 38. The terminal according to claim 36, wherein the signal receiver is further configured to receive the mapping relationship sent by the network device. 39. The terminal according to claim 38, wherein the signal receiver is specifically configured to receive the mapping relationship sent by the network device in a static, semi-static or dynamic manner. 40. The terminal according to any one of claims 33 to 39, wherein the terminal identity includes: International Mobile Subscriber Identity IMSI, Wireless Network Temporary Identity RNTI, International Mobile Equipment Identity IMEI or Temporary Mobile Subscriber Identity TMSI. . 41. A network device, characterized by: including: A processor, configured to obtain the terminal identification of the terminal to receive the paging message; and determine the paging according to the functional relationship between the discontinuous reception DRX cycle, the terminal identification and the size of the frequency domain resources occupied by the paging message. The frequency domain resource location where the message is located; A signal transmitter, configured to send the paging message at the determined frequency domain resource location. 42. The network device as claimed in claim 41, characterized in that, The processor is further configured to determine the time domain resource location where the paging message is located based on the functional relationship between the DRX cycle, the terminal identification and a preset offset; wherein, the offset satisfies: so that the determined time domain resource location is different from the time domain resource location where the system information is located; the signal transmitter is specifically configured to send the paging message at the determined time domain resource location and the determined frequency domain resource location . 43. The network device as claimed in claim 41, characterized in that, The processor is further configured to: determine the time domain resource location where the paging message is located based on the functional relationship between the DRX cycle and the terminal identifier; when the determined time domain resource location is consistent with the time domain where the system message is located When the resource locations are the same, instruct the signal transmitter to send the system message at the determined time domain resource location without sending the paging message; The signal transmitter is specifically configured to: when the determined time domain resource location is different from the time domain resource location where the system message is located, send the search signal on the determined time domain resource location and the determined frequency domain resource location. Call message. 44. The network terminal device according to any one of claims 41 to 43, characterized in that, The processor is specifically configured to: determine a terminal group identity based on the DRX cycle, the functional relationship between the terminal identity and the terminal group identity; determine the terminal group identity, the size of the frequency domain resource occupied by the paging message and the frequency domain Determine the frequency domain resource group identifier based on the functional relationship of the resource group identifier; determine the frequency domain resource location mapped by the determined frequency domain resource group identifier according to the mapping relationship between the frequency domain resource group identifier and the frequency domain resource location. 45. The network device according to claim 44, wherein the mapping relationship is pre-agreed between the network device and the terminal. 46. The network device according to claim 44, wherein the signal transmitter is further configured to notify the terminal of the mapping relationship. 47. The network device according to claim 46, wherein the signal transmitter is specifically configured to: notify the terminal of the mapping relationship using a static, semi-static or dynamic notification method. 48. The network device according to any one of claims 41 to 47, wherein the terminal identification includes: International Mobile Subscriber Identity IMSI, Wireless Network Temporary Identity RNTI, International Mobile Equipment Identity IMEI or Temporary Mobile Subscriber Identifies TMSI.