TWI559711B - Broadcasting method and equipment for broadcast messages - Google Patents

Description

Method and device for transmitting paging message

The invention belongs to the field of wireless communication, and in particular relates to a method and a device for transmitting a paging message.

Network technology is on the rise, supporting the need for Machine Type Communications (MTC) in third-generation mobile communications systems and its Long Term Evolution (LTE).

M2M (Machine-to-Machine) communication as a new communication concept, the purpose is to combine a variety of different types of communication technologies, such as: machine-to-machine communication, machine control communication, human-computer interaction communication, mobile interconnection Communication, thereby promoting the development of social production and lifestyle. It is expected that the business of human-to-human communication in the future may only account for 1/3 of the entire terminal market, and a larger amount of communication is the inter-machine (small bandwidth system) communication service.

The current mobile communication network is designed for communication between people, such as the determination of network capacity. If you want to use mobile communication networks to support small-bandwidth system communication, you need to optimize the mechanism of the mobile communication system according to the characteristics of small-bandwidth system communication, so that the traditional human-to-human communication is not affected or less affected. In this case, better communication of small bandwidth systems is achieved.

Some features that may be present in the currently recognized MTC are: MTC terminals have Low mobility; the time for data transmission between the MTC terminal and the network side is controllable, that is, the MTC terminal can only access within the specified time period of the network; the data transmission performed by the MTC terminal and the network side does not require immediacy. High, ie: time-tolerant; MTC terminal energy limited, requiring very low power consumption; only small data volume information transmission between MTC terminal and network side; MTC terminal can be managed in groups; .

An actual MTC terminal may have one or more of the characteristics described above.

In order to support a large number of MTC terminals for data transmission at the same time, one solution is to configure a plurality of small frequency and wide frequency points in the data column of the working bandwidth of the LTE system, and configure a part of the MTC terminals for data transmission in each of the small frequency and wide frequency points, as shown in FIG. 1 . Shown.

The network can send a paging message to the idle (UE) state of the idle state and the connected state. The paging process may be triggered by the core network to notify a certain UE to receive the paging message, or triggered by the base station (eNB) to notify the system information, and notify the UE to receive the Earthquake and Tsunami Warning System (Earthquake and Tsunami Warning System, ETWS) or commercial mobile alert service (CMAS) and other information. In particular, for the MTC terminal in the connected state, the paging message is mainly used to inform the terminal system of the update of the message.

The current LTE protocol stipulates that the paging message is scheduled by the physical downlink control channel (PDCCH) that is scrambled by the Paging-Radio Network Temporary Identifier (P-RNTI). Transmission in the Physical Downlink Shared Channel (PDSCH) (can be scheduled at any position of the downlink data bandwidth); a paging message can broadcast up to 16 UEs, and the paging message contains the terminal broadcast of each called user. Call the logo. The specific structure of the paging message can be found in the regulations.

According to the capacity requirement, the paging message can be configured to transmit the paging message in 1 or 2 or 4 subframes in each wireless frame. For details, see Table 1 and Table 2, where Table 1 is Frequency Division Duplex (FDD). The configuration in the system, Table 2 is the configuration in the Time Division Duplex (TDD) system.

In Table 1 and Table 2, Ns refers to the number of subframe positions that can be sent by a radio frame; i_s=floor(UE_ID/N) mod Ns, which is used to estimate a radio frame according to the above table. The subframe number of the PO of the terminal; PO is the paging time.

For the sake of power saving, the UE's paging message reception follows the Discontinuous Reception (DRX) principle. Each hive will broadcast the preset DRX paging period of the hive to all UEs in the hive in the system information. Each UE can also set the UE-specific DRX paging period according to its own power and the paging system message. Non-access Stratum (NAS) messages such as Attach Request or Tracking Area Update Request The (TAU Request) message transmits the UE-specific DRX paging period information to the mobility management entity (MME). The MME transmits the specific DRX paging period information of the called UE to the eNB through the paging message of the S1 Application Protocol (S1AP) interface. The eNB has both the specific DRX paging cycle information used by each UE received from the MME and the preset DRX paging cycle information of the system information broadcast. The UE receives the preset DRX paging period broadcasted in the system information, and may also configure its own specific DRX paging period, as shown in FIG. 2 .

If the UE and the eNB simultaneously store two pairs of the same broadcast DRX configuration (preset DRX paging period and UE specific DRX paging period), the same rule is used to filter out one of the pair as the paging message listener. The configuration used. Therefore, the eNB and the UE's paging period configuration can always be matched. The eNB sends a paging message to the UE in the air interface according to the paging period and the paging time, and the UE can receive the corresponding correct paging moment.

The UE and the network side calculate the UE identity (UE ID) through the UE's own International Mobile Subscriber Identity (IMSI), and use the same paging period to calculate the paging time (the radio frame number) where the UE is located. (SFN) + subframe position (i_s)), in each paging period, the UE only listens to the paging message at the corresponding one of the paging moments, receives the public notification information therein, and searches for whether it contains its own The Paging UE ID may be an International Mobile Subscriber Identity (IMSI) or a System Architecture Evolution Temporary Mobile Station Identifier (S-TMSI).

It can be seen from the above description that the paging message in the existing LTE standard is transmitted on the PDSCH scheduled by the PDCCH scrambled by the P-RNTI, and the PDSCH can be scheduled to be transmitted in the full bandwidth. In the case of multiple small frequency and wide frequency point configurations, there is currently no standard. There is a method for resolving how the paging message of the terminal at each frequency point is transmitted. If the problem is not solved, the possible problems are as follows: First, the terminal does not know on which carrier to listen to the paging message, and the paging message cannot be valid. Transmission; Secondly, in the case of multi-small frequency and wideband configuration, if the appropriate transmission configuration of the paging message is not performed, the terminal may miss the paging message.

The embodiment of the invention provides a method and a device for transmitting a paging message, which are used to solve the problem of how a paging message of a terminal at each frequency point in a small bandwidth system is transmitted.

A method for transmitting a paging message is applied to a small bandwidth system in which a plurality of frequency points are arranged in a data column of a system bandwidth, and a part of the terminal is configured to perform data transmission in each frequency point, the method includes: The road side determines the terminal that needs to receive the paging message; the network side transmits the paging message to the terminal at one or more frequency points, wherein, for the terminal in the connected state, only the data transmission frequency of the terminal is on the network side. When transmitting the paging message to the terminal, and the network side only transmits the system broadcast message at a specific frequency point, the method further includes: when the data transmission frequency of the terminal is not a specific frequency point, the network side hops to the specific terminal at the terminal The frequency point reads the broadcast message of the system, and transmits the paging message to the terminal at a specific frequency point; or; when the data transmission frequency of the terminal is not a specific frequency point, the network side is at the terminal After hopping to a specific frequency point to read the system broadcast message, and before receiving the terminal's read system broadcast message completion signaling, the paging message to the terminal is transmitted at a specific frequency point.

A method for transmitting a paging message is applied to a small bandwidth system in which a plurality of frequency points are arranged in a data column of a system bandwidth and a partial terminal is configured to perform data transmission in each frequency point, and the method includes: Determining a frequency point at which the network side transmits the paging message to the terminal; the terminal selects a frequency point at which the paging message is received according to the determination result, and receives a paging message for the terminal at the selected frequency point; When the terminal is in the connected state, when the terminal determines that the frequency at which the network side transmits the paging message to the terminal is the data transmission frequency of the terminal, and transmits the system broadcast message only at the specific frequency, the terminal further includes: When the data transmission frequency of the data is not a specific frequency point, the paging message of the terminal is received at a specific frequency point within a period of time after the frequency hopping to the specific frequency point to read the system broadcast message; or; the terminal is in its own When the data transmission frequency is not a specific frequency point, after hopping to a specific frequency point to read the system broadcast message, and before transmitting the system broadcast message completion signaling to the network side The receiving terminal at a particular frequency paging messages.

A transmission base station for broadcasting a message, the base station comprising: a terminal determining unit, configured to determine a terminal that needs to receive a paging message; and a paging message transmission unit, configured to transmit the broadcast to the terminal at one or more frequency points Call a message; among them, For the terminal in the connected state, the paging message transmission unit is further configured to: if the paging message of the terminal is transmitted only on the data transmission frequency of the terminal, and the network side only transmits the system broadcast message at a specific frequency point Then, when the data transmission frequency of the terminal is not a specific frequency point, the broadcast message of the terminal is transmitted at a specific frequency point within a period of time after the terminal hops to a specific frequency point to read the system broadcast message. Or; after the terminal hops to read the system broadcast message at a specific frequency point, and receives the read system broadcast message completion signaling of the terminal, the paging message to the terminal is transmitted at a specific frequency point.

A transmission terminal for broadcasting a message, the terminal comprising: a frequency point determining unit, configured to determine a frequency point at which the network side transmits a paging message to the terminal; the paging message receiving unit is configured to select a self-receiving broadcast according to the determination result Calling the frequency of the message, and receiving the paging message for the terminal at the selected frequency; wherein, when the terminal is in the connected state, the paging message receiving unit is further configured to: if it is determined that the network side transmits the terminal The frequency of the paging message is the data transmission frequency of the terminal, and the system broadcast message is transmitted only at a specific frequency point: when the data transmission frequency of the data is not a specific frequency point, the frequency hopping to the specific frequency Receiving a paging message for the terminal at a specific frequency point after reading the system broadcast message; or; when the data transmission frequency of the data is not a specific frequency point, reading the frequency hopping to a specific frequency point After the system broadcasts the message and sends the system broadcast message completion signaling to the network side. Before, the paging message to the terminal is received at a specific frequency.

In the solution provided by the embodiment of the present invention, after determining the terminal that needs to receive the paging message, the network side transmits the paging message to the terminal at one or more frequency points, and the terminal determines that the network side transmits the paging message to the terminal. At the frequency point, according to the determination result, the frequency point at which the paging message is received is selected, and the paging message for the terminal is received at the selected frequency point. It can be seen that the present invention solves the problem of how the paging message of the terminal at each frequency point in the small bandwidth system is transmitted.

50‧‧‧ terminal determination unit

51‧‧‧Broadcast message transmission unit

60‧‧‧frequency point determination unit

61‧‧‧Broadcast message receiving unit

1 is a schematic diagram of a frequency point configuration in a small bandwidth system in the prior art; FIG. 2 is a schematic diagram of a DRX correspondence relationship between a UE and an eNB in the prior art; FIG. 3 is a schematic flowchart of a method according to an embodiment of the present invention; FIG. 5 is a schematic structural diagram of a base station 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 invention.

In order to solve the problem of how to broadcast the paging message of the terminal at each frequency point in the small bandwidth system, the embodiment of the present invention provides a method for transmitting a paging message, which can be applied to the data column of the system bandwidth. A small bandwidth system that has multiple frequency points and configures some terminals for data transmission in each frequency point.

Referring to FIG. 3, the transmission of the paging message for the network side provided by the embodiment of the present invention is provided. The method includes the following steps: Step 30: The network side determines the terminal that needs to receive the paging message; Step 31: The network side transmits the paging message to the terminal at one or more frequency points.

Specifically, in step 31, the network side transmits the paging message to the terminal only at the data transmission frequency of the terminal; or transmits the paging message to the terminal at each frequency point; or, only at a specific frequency The paging message is transmitted to the terminal at the point; or the paging message to the terminal is transmitted at a specific frequency point and the data transmission frequency of the terminal.

For a terminal in an idle state, the network side transmits the paging message to the terminal only at a specific frequency point; for the terminal in the connected state, the network side transmits the paging to the terminal only at the data transmission frequency of the terminal. a message; or, transmitting a paging message to the terminal at each frequency point; or transmitting a paging message to the terminal only at a specific frequency point; or, at a specific frequency point and a data transmission frequency of the terminal (At this time, the data transmission frequency of the terminal is not a specific frequency point), the paging message to the terminal is transmitted.

Further, for the terminal in the connected state, if the network side only transmits the paging message to the terminal at a specific frequency point, the network side sends the time length T1 by signaling before transmitting the paging message to the terminal. The terminal is provided to cause the terminal to jump back to the specific frequency point to listen to the paging message in advance of the paging time. Of course, the network side may not send T1 to the terminal, but the terminal and the network side pre-arrange T1.

Further, for the terminal in the connected state, if the network side only transmits the paging message to the terminal at the data transmission frequency of the terminal, and the network side transmits only at a specific frequency point. When the system broadcasts a message, in order to prevent the data transmission frequency of the terminal from being a specific frequency point, since the paging moment of the terminal falls within the time period in which the terminal hops to the specific frequency point to read the system broadcast message, The terminal misses the problem of the paging message. The network side needs to perform one of the following two operations: operation 1: the network side hops to the specific frequency point to read the system broadcast message for a certain period of time, at a specific frequency point. The paging message to the terminal is transmitted; here, before the network side transmits the paging message to the terminal, the high-level server can notify the base station transmitting the paging message through the Iub interface for the length of time T2.

Operation 2: The network side transmits the paging message to the terminal at a specific frequency point after the terminal hops to the specific frequency point to read the system broadcast message and receives the read system broadcast message completion signaling of the terminal. In order to enable the terminal to listen to and receive the monitored paging message at a specific frequency point after hopping to a specific frequency point to read the system broadcast message and before receiving the terminal's reading system broadcast message completion signaling.

It should be noted that for the scheme of transmitting the paging message to the terminal only on the data transmission frequency of the terminal, the network side only transmits the paging message to the terminal at the data transmission frequency of the terminal, only in the above special In this case, the paging message to the terminal is allowed to be transmitted at a specific frequency.

Further, for the terminal in the connected state, when the network side transmits the paging message to the terminal at the corresponding frequency point, one of the following three methods may be adopted:

First, the network side schedules the terminal to receive the paging message by using the control channel (PDCCH) of the P-RNTI scrambling at the corresponding frequency point according to the DRX mechanism, and according to the scheduling at the corresponding frequency Point to the end through the shared channel (PDSCH) transmission The paging message of the terminal; here, the same P-RNTI is used for the terminals at different data transmission frequencies or the different P-RNTI scramble control channels are used.

Second, the network side schedules the terminal to receive the paging message at the corresponding frequency point by using a specific Radio Network Temporary Identity (RNTI) scrambled control channel (PDCCH) according to the set time period, and according to the scheduling at the corresponding frequency. The paging message is transmitted to the terminal through the shared channel (PDSCH). The specific implementation may be as follows: the network side sends a specific RNTI scrambled control channel at the corresponding frequency point according to the set time period to indicate the network. The paging side sends a paging message indicating a specific meaning; or the network side sends a specific RNTI scrambled control channel carrying the changed value tag value at the corresponding frequency point according to the set time period, if The valuetag value changes from the valuetag value sent last time, and the changed valuetag value indicates the paging message of a specific meaning.

The specific meaning of the paging message may be: a paging message in which the system message changes.

Third, the network side transmits the paging message through the control channel of the specific RNTI scrambling at the corresponding frequency point according to the set time period.

The corresponding frequency point refers to the frequency point at which the above-mentioned paging message is transmitted. If the network side only transmits the paging message to the terminal at the data transmission frequency of the terminal, the corresponding frequency point is the data transmission frequency of the terminal. If the network side transmits the paging message to the terminal at each frequency point, the corresponding frequency point is each frequency point. If the network side only transmits the paging message to the terminal at a specific frequency point. Interest rate, the corresponding frequency point is a specific frequency point. If the network side transmits the paging message to the terminal at a specific frequency point and the data transmission frequency of the terminal, the corresponding frequency point is a specific frequency point and a data transmission frequency point of the terminal.

When the second or third method is used, the network side needs to send the information of the set time period to the terminal in advance; of course, the network side may not send the information of the set time period to the terminal, but The time period is pre-agreed by the terminal and the network side. The specific RNTI may be a pre-agreed RNTI between the terminal and the network side, and the RNTI may be a newly defined RNTI different from the existing RNTI in the prior art.

Fourth, the network side transmits the paging message on the PDSCH of the demodulated information that is known to be demodulated by the specific RNTI according to the set time period; the known necessary demodulation information includes transmitting the PDSCH resource. Information such as location or multiple resource candidate locations, modulation methods, and code rates.

In the method, before transmitting the paging message, the network side also needs to send information about the frequency point at which the paging message is transmitted to the terminal through high layer signaling or entity layer signaling. The higher layer signaling may be Radio Resource Control (RRC) signaling.

In the method, the specific frequency point may be the initial access frequency of the terminal; or the specific frequency point is the main frequency point, and when the network side transmits the system broadcast message only at one frequency point, the frequency of the broadcast information of the transmission system is mainly The frequency point; or the specific frequency point is a small frequency and wide frequency point located in the center of the system bandwidth.

Referring to FIG. 4, a method for transmitting a paging message on a terminal side according to an embodiment of the present invention includes the following steps: Step 40: A terminal determines a frequency point at which a network side transmits a paging message to the terminal; Step 41: The terminal selects a frequency point at which the paging message is received according to the determination result, and receives a paging message for the terminal at the selected frequency point.

Specifically, in step 40, the frequency point determined by the terminal is a specific frequency point, or a data transmission frequency point of the terminal, or two or more frequency points including a specific frequency point and a data transmission frequency point of the terminal, or a specific frequency. Point and the data transmission frequency of the terminal.

When the terminal is in the idle state, the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point; correspondingly, in step 41, the terminal selects the specific frequency point as the frequency point at which the paging message is received by itself. .

When the terminal is in the connected state, the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point, or a data transmission frequency point of the terminal, or includes a specific frequency point and a data transmission frequency point of the terminal. More than two frequency points, or a specific frequency point, and a data transmission frequency point of the terminal; correspondingly, in step 41: if the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point, Selecting a specific frequency point as the frequency point at which the paging message is received by itself; if the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is the data transmission frequency point of the terminal, the data transmission frequency of the terminal is selected. The point is the frequency at which the paging message is received by the terminal; if the terminal determines that the frequency of the paging message transmitted by the network side to the terminal is two or more frequency points including a specific frequency point and a data transmission frequency point of the terminal, Selecting the data transmission frequency of the terminal as the frequency point at which the paging message is received by itself, and receiving the paging message to the specific frequency point when needed; if the terminal determines the network side transmission pair Frequency paging messages where the terminal is For a specific frequency point and a data transmission frequency point of the terminal, the data transmission frequency point of the terminal is selected as the frequency point at which the paging message is received by itself, and the paging message is received at a specific frequency point when needed.

Further, when the terminal is in the connected state, if the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point, the terminal jumps back to the T1 time before the paging time is received before receiving the paging message. Monitor the paging message to a specific frequency.

Before the terminal jumps back to the specific frequency point to monitor the paging message, it can also receive the T1 message sent by the network side by signaling. Of course, it is also possible that the terminal and the network side pre-arrange T1.

Further, when the terminal is in the connected state, if the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is the data transmission frequency of the terminal, and transmits the system broadcast message only at the specific frequency, When the data transmission frequency of the terminal is not a specific frequency point, the paging moment of the terminal falls into the time period in which the terminal hops to the specific frequency point to read the broadcast message of the system, and the terminal misses the paging message. The problem is that the terminal needs to perform one of the following two operations: operation one: the terminal listens to and receives the monitored terminal for the terminal at a specific frequency point after hopping to a specific frequency point to read the system broadcast message. Broadcasting message; operation 2: after the frequency hopping to a specific frequency point to read the system broadcast message, and before transmitting the system broadcast message completion signaling to the network side, the terminal listens and receives the monitored at a specific frequency point. The paging message of the terminal.

Further, when the terminal is in the connected state, when the terminal receives the paging message for the terminal at the selected frequency point, the following three methods may be used:

First, the terminal according to the DRX mechanism, according to the network side at the selected frequency point The scheduling of the control channel (PDCCH) using the P-RNTI scrambling is performed, and the paging message transmitted to the terminal transmitted by the network side is received through the shared channel (PDSCH) at the selected frequency point;

Second, the terminal passes the shared channel at the selected frequency point according to the scheduled time period according to the scheduling of the control channel (PDCCH) that the network side temporarily identifies the RNTI scrambling by using the specific wireless network at the selected frequency point ( PDSCH) receiving a paging message transmitted to the terminal by the network side; Here, the specific implementation may be as follows: when the terminal receives a specific RNTI scrambled control channel at the selected frequency point according to the set time period, it is determined that the network side sends a paging message indicating a specific meaning; or The terminal determines that the network side sends a paging message indicating a specific meaning when receiving the control channel carrying the changed valuetag value by the specific RNTI at the selected frequency point according to the set time period.

The specific meaning of the paging message may be: a paging message in which the system message changes.

Third, the terminal receives the paging message transmitted to the terminal by the network side through the control channel that is scrambled by the specific RNTI at the selected frequency point according to the set time period.

When the second or third method is used, the terminal may receive the information of the set time period sent by the network side before receiving the paging message. Of course, the time period may be pre-agreed by the terminal and the network side. The specific RNTI may be a pre-agreed RNTI between the terminal and the network side, and the RNTI may be a newly defined RNTI different from the existing RNTI in the prior art.

Fourth, the terminal passes a specific time at the corresponding frequency point according to the set time period. The RNTI scrambled, known demodulation information, the PDSCH receiving the paging message transmitted by the network side to the terminal; the known necessary demodulation information includes transmitting the PDSCH resource location or multiple resource candidate locations, modulation mode, Rate and other information.

In step 40, the terminal determines the frequency at which the network side transmits the paging message to the terminal, and the specific implementation may be as follows: the terminal determines, according to the agreement with the network side, the frequency at which the network side transmits the paging message of the terminal; Alternatively, the terminal receives the information of the frequency point of the transmission paging message sent by the network side through the high layer signaling or the entity layer signaling, and determines, according to the information, the frequency point at which the network side transmits the paging message to the terminal. The higher layer signaling may be RRC signaling.

For example, the terminal receives the information of the frequency point of the transmission paging message sent by the network side through the high layer signaling or the entity layer signaling, and determines, according to the information, the frequency at which the network side transmits the paging message of the terminal, The high-level signaling or the physical layer signaling may include a first variable (for example, PagingFreqList) and a second variable (for example, pagingInOwnFreq); the first variable indicates a list of frequency points for transmitting the paging message, and the second variable indicates whether the frequency at the terminal is located. Sending a flag bit of the paging message; and: when the value of the second variable is FALSE, and the first variable indicates a frequency point, the frequency point is a specific frequency point, and the terminal determines that the network side transmits the paging of the terminal The frequency at which the message is located is a specific frequency point; and the frequency at which the receiving broadcast message is received is a specific frequency point; the value of the second variable is FALSE, and the first variable indicates that the specific frequency point and the data of the terminal are included. When transmitting a plurality of frequency points of the frequency point, the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is two points including a specific frequency point and a data transmission frequency point of the terminal. The frequency point is selected; and the frequency point at which the receiving paging message is received is the data transmission frequency of the terminal, and the paging message is received at a specific frequency when needed (such as during receiving the system broadcast message); When the value is TRUE and the first variable indicates a frequency point, the frequency point is a specific frequency point, and the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point and a data transmission frequency of the terminal. Point; and select the frequency at which the receiving paging message is located as the data transmission frequency of the terminal, and receive the paging message at a specific frequency when needed (such as during receiving the system broadcast message); the value of the second variable is TRUE, and when the first variable indication is empty, the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is the data transmission frequency of the terminal; and selects the frequency at which the paging message is received by the terminal. The data transmission frequency.

The present invention will be described below in conjunction with specific embodiments:

Embodiment 1:

Step 1: The base station determines the terminal that needs to receive the paging message. For the terminal in the idle state, the base station transmits the paging message to the terminal only at a specific frequency point; for the terminal in the connected state, the base station only works at the terminal. The data transmission frequency transmits the paging message to the terminal; Step 2: the terminal in the idle state receives the paging message of the terminal at the specific frequency point; and the data transmission frequency of the terminal in the connected state at the terminal The receiving broadcast message is received on the terminal.

Embodiment 2:

Step 1: The base station determines the terminal that needs to receive the paging message, and is empty. In the idle terminal, the base station transmits the paging message to the terminal only at a specific frequency point; for the terminal in the connected state, the base station transmits the paging message to the terminal at each frequency point; Step 2: The terminal in the idle state receives the paging message for the terminal at a specific frequency point; the terminal in the connected state receives the paging message to the terminal at the data transmission frequency of the terminal.

Embodiment 3:

Step 1: The base station determines the terminal that needs to receive the paging message. For the terminal in the idle state and the connected state, the base station transmits the paging message to the terminal only at a specific frequency point; Step 2: is in the idle state and the connected state. The terminals all receive the paging message for the terminal at a specific frequency.

Embodiment 4:

Step 1: The base station determines the terminal that needs to receive the paging message. For the terminal in the idle state, the base station transmits the paging message to the terminal only at a specific frequency point; for the terminal in the connected state, if the terminal has the data If the transmission frequency is not a specific frequency, the base station transmits the paging message to the terminal at a specific frequency point and the data transmission frequency of the terminal. If the data transmission frequency of the terminal is a specific frequency point, the base station Transmitting a paging message to the terminal at a specific frequency point; Step 2: The terminal in the idle state receives the paging message for the terminal at a specific frequency point; in the connected state, and the data transmission frequency is not a specific frequency point The terminal receives the paging message of the terminal at the data transmission frequency of the terminal; the terminal in the connected state and the data transmission frequency is a specific frequency point, at a specific frequency point The receiving broadcast message is received on the terminal.

Embodiment 5:

Step 1: The base station notifies the terminal to transmit the information of the frequency point where the paging message is located through RRC signaling; the information may include two variables of PagingFreqList and pagingInOwnFreq; Step 2: After the terminal receives the information: the value of pagingInOwnFreq When FALSE and PagingFreqList indicate a frequency point, the frequency point is a specific frequency point, and the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point; and receives the paging message at the specific frequency point; When the value of the pagingInOwnFreq is FALSE, and the PagingFreqList indicates a plurality of frequency points including a specific frequency point and a data transmission frequency point of the terminal, the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point. And two or more frequency points of the data transmission frequency of the terminal; and receiving the paging message at the data transmission frequency of the terminal, and receiving the paging message at a specific frequency when needed (such as during receiving the system broadcast message); When the value of pagingInOwnFreq is TRUE and PagingFreqList indicates a frequency point, the frequency point is a specific frequency point, and the terminal determines that the network side transmits the The frequency of the paging message is the specific frequency point and the data transmission frequency of the terminal; and the paging message is received at the data transmission frequency of the terminal, and is at a specific frequency when needed (such as during receiving the system broadcast message) Receiving a paging message; when the value of pagingInOwnFreq is TRUE and the PagingFreqList indication is empty, the terminal determines that the frequency at which the network side transmits the paging message to the terminal is the data transmission frequency of the terminal; and at the terminal The data transmission frequency receives the paging message.

The structure of RRC signaling can be as follows:

Referring to FIG. 5, an embodiment of the present invention provides a base station, where the base station includes: a terminal determining unit 50 for determining a terminal that needs to receive a paging message; and a paging message transmission unit 51 for using one or more frequency points. The paging message to the terminal is transmitted. Specifically, the paging message to the terminal is transmitted only on the data transmission frequency of the terminal; or the paging message to the terminal is transmitted at each frequency point; or the terminal is transmitted only at a specific frequency point. The paging message; or, the paging message to the terminal is transmitted at a specific frequency point and the data transmission frequency of the terminal.

Further, the paging message transmission unit 51 is configured to: for a terminal in an idle state, transmit the broadcast to the terminal only at a specific frequency point. Calling a message; for a terminal in a connected state, transmitting a paging message to the terminal only at a data transmission frequency of the terminal; or transmitting a paging message to the terminal at each frequency point; or, only in the terminal The paging message to the terminal is transmitted at a specific frequency point; or the paging message to the terminal is transmitted at a specific frequency point and a data transmission frequency point of the terminal.

Further, the paging message transmission unit 51 is further configured to: for the terminal in the connected state, send the time length T1 to the terminal by using signaling before transmitting the paging message to the terminal only at a specific frequency point, In order to make the terminal jump back to the specific frequency point to listen to the paging message in advance T1 time.

Further, the paging message transmission unit 51 is further configured to: if the paging message of the terminal is transmitted only on the data transmission frequency of the terminal, and the network side transmits the system broadcast message only at a specific frequency point, then: When the data transmission frequency of the terminal is not a specific frequency point, the paging message of the terminal is transmitted at a specific frequency point within a period of time after the terminal hops to the specific frequency point to read the system broadcast message; or After the terminal hops to a specific frequency point to read the system broadcast message, and receives the read system broadcast message completion signaling of the terminal, the paging message to the terminal is transmitted at a specific frequency point.

Further, the paging message transmission unit 51 is further configured to: before receiving the paging message to the terminal, receive the time length T2 of the time period sent by the upper layer server through the Iub interface.

Further, the paging message transmission unit 51 is configured to: The terminal transmits the paging message to the terminal at the corresponding frequency point according to the following method: according to the discontinuous reception DRX mechanism, the control channel scheduling by using the paging wireless network temporary identifier P-RNTI scrambling at the corresponding frequency point The terminal receives the paging message, and transmits the paging message to the terminal through the shared channel according to the scheduling; or, according to the set time period, temporarily identifies the RNTI by using a specific wireless network according to the set time period. The scrambled control channel schedules the terminal to receive the paging message, and transmits the paging message to the terminal through the shared channel according to the scheduling; or, according to the set time period, passes the specific RNTI at the corresponding frequency point. The scrambled control channel transmits the paging message; or, according to the set time period, transmits the paging message to the PDSCH that is scrambled by the specific RNTI and is known to have the necessary demodulation information according to the set time period; The demodulation information includes information such as a PDSCH resource location or a plurality of resource candidate locations, a modulation scheme, and a code rate.

Further, the paging message transmission unit 51 is configured to: according to the DRX mechanism, schedule the terminal to receive the paging message by using the P-RNTI scrambled control channel at the corresponding frequency point, and pass the corresponding frequency point according to the scheduling. When the shared channel transmits the paging message to the terminal, the same P-RNTI is used for the terminals at different data transmission frequencies or different P-RNTIs are used.

Further, the paging message transmission unit 51 is configured to: according to the set time period, transmit a paging message through a specific RNTI scrambled control channel according to a set time period: according to a set time period, at a corresponding frequency Sending a specific RNTI scrambled control channel to indicate that the network side has sent a paging message indicating a specific meaning; or According to the set time period, a specific RNTI scrambled control channel carrying a changed valuetag value is transmitted at the corresponding frequency point, and the changed valuetag value indicates a specific meaning of the paging message.

Further, the specific meaning of the paging message is: a paging message in which the system message changes.

Further, the paging message transmission unit 51 is further configured to: send the information of the set time period to the terminal in advance.

Further, the paging message transmission unit 51 is further configured to send information about a frequency point at which the paging message is transmitted to the terminal by using high layer signaling or entity layer signaling before transmitting the paging message.

Referring to FIG. 6, an embodiment of the present invention provides a terminal, where the terminal includes: a frequency point determining unit 60, configured to determine a frequency point at which a network side transmits a paging message to the terminal; specifically, the frequency point is a specific frequency point. Or a data transmission frequency point of the terminal, or two or more frequency points including a specific frequency point and a data transmission frequency point of the terminal, or a specific frequency point and a data transmission frequency point of the terminal; the paging message receiving unit 61 And selecting, according to the determination result, a frequency point at which the self-received paging message is received, and receiving a paging message for the terminal at the selected frequency point.

Further, the frequency point determining unit 60 is configured to: when the terminal is in an idle state, determine that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point; the paging message receiving unit 61 is configured to: select The specific frequency is used as the frequency at which the paging message is received by itself.

Further, the frequency determining unit 60 is configured to: when the terminal is in the connected state, determine that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point, or a data transmission frequency point of the terminal, or includes a specific frequency point and two or more frequency points of the data transmission frequency of the terminal, or a specific frequency point and a data transmission frequency point of the terminal; the paging message receiving unit 61 is configured to: if the terminal determines that the network side transmits the If the frequency of the paging message of the terminal is a specific frequency point, the specific frequency point is selected as the frequency point at which the paging message is received by the terminal; if the terminal determines that the frequency of the paging message transmitted by the network side to the terminal is the terminal The data transmission frequency point is selected as the frequency of the data transmission frequency of the terminal; if the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point and the If there are more than two frequency points of the data transmission frequency of the terminal, the data transmission frequency point of the terminal is selected as the frequency point at which the paging message is received by itself, and is connected to a specific frequency point when needed. Receiving a message; if the terminal determines that the frequency at which the network side transmits the paging message to the terminal is a specific frequency point and the data transmission frequency of the terminal, the data transmission frequency of the terminal is selected as the self-received paging message. The frequency point at which it is located, and receives the paging message at a specific frequency when needed.

Further, the paging message receiving unit 61 is further configured to: when determining that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point, before the receiving the paging message, the relative paging time is advanced by T1 time. Jump back to a specific frequency to monitor the paging message.

Further, the paging message receiving unit 61 is further configured to: receive network-side signaling before jumping back to a specific frequency point to listen to the paging message. The message of the T1 sent.

Further, the paging message receiving unit 61 is further configured to: if it is determined that the frequency point at which the network side transmits the paging message to the terminal is the data transmission frequency of the terminal, and only transmits the system broadcast message at the specific frequency point , in the case that the data transmission frequency of the data is not a specific frequency point, the broadcast message of the terminal is received at a specific frequency point within a period of time after the frequency hopping to the specific frequency point to read the system broadcast message; or When the data transmission frequency of the data is not a specific frequency point, after the frequency hopping to the specific frequency point to read the system broadcast message, and before transmitting the system broadcast message completion signaling to the network side, receiving at the specific frequency point The paging message of the terminal.

Further, the paging message receiving unit 61 is configured to: receive the paging message to the terminal at the selected frequency point according to the following method: according to the DRX mechanism, according to the network side, by using the paging wireless network at the selected frequency point The road temporarily identifies the scheduling of the P-RNTI scrambled control channel, and receives the paging message transmitted by the network side to the terminal through the shared channel at the selected frequency point; or, according to the set time period, according to the selected side of the network side At the frequency point, by using a specific wireless network to temporarily identify the control channel of the RNTI scrambled control channel, the broadcast channel of the terminal transmitted by the network side is received through the shared channel at the selected frequency point; or, according to the set time period Receiving, by the specific RNTI scrambled control channel, the paging message transmitted by the network side to the terminal at the selected frequency point; or, according to the set time period, scrambling through the specific RNTI at the corresponding frequency point, The PDSCH receiving the necessary demodulation information receives the paging message transmitted to the terminal on the network side. The known necessary demodulation information includes information such as a transmission PDSCH resource location or a plurality of resource candidate locations, a modulation scheme, a code rate, and the like.

Further, the paging message receiving unit 61 is configured to: according to the set time period, receive, by the specific RNTI scrambled control channel, the paging message transmitted by the network side to the terminal according to the set time period: When receiving a specific RNTI scrambled control channel at the selected frequency point according to the set time period, it is determined that the network side sends a paging message indicating a specific meaning; or, according to the set time period, the selected frequency When receiving a control channel carrying a variable value tag value that is scrambled by a specific RNTI, it is determined that the network side sends a paging message indicating a specific meaning.

Further, the specific meaning of the paging message is: a paging message in which the system message changes.

Further, the paging message receiving unit 61 is further configured to: receive the information of the set time period sent by the network side before receiving the paging message.

Further, the frequency determining unit 60 is configured to: determine, according to an agreement with the network side, a frequency point at which the network side transmits the paging message to the terminal; or, the receiving network side sends the signaling through the high layer signaling or the physical layer signaling. The information of the frequency point at which the paging message is transmitted is determined according to the information, and the frequency at which the network side transmits the paging message to the terminal is determined.

Further, the frequency determining unit 60 is configured to:

Receiving, by the network side, the information of the frequency point of the transmission paging message sent by the high layer signaling or the entity layer signaling, where the information includes the first variable and the second variable; the first variable indicates the frequency list of the paging message transmission, The second variable is whether the flag bit of the paging message is sent at the frequency point where the terminal is located; when the value of the second variable is FALSE, and the first variable indicates a frequency point, the frequency point is a specific frequency point, and the network side is determined. The frequency at which the paging message transmitted to the terminal is located is a specific frequency point; when the value of the second variable is FALSE, and the first variable indicates a plurality of frequency points including a specific frequency point and a data transmission frequency point of the terminal Determining that the frequency point at which the network side transmits the paging message to the terminal is two or more frequency points including a specific frequency point and a data transmission frequency point of the terminal; the value of the second variable is TRUE, and the first When the variable indicates a frequency point, the frequency point is a specific frequency point, and the frequency point at which the network side transmits the paging message to the terminal is determined to be a specific frequency point and a data transmission frequency point of the terminal; the value of the second variable is determined. TRUE, and the first change When the indication is empty, the network side determines the transmission frequency paging message for the terminal where the data transmission frequency terminals.

In summary, the beneficial effects of the present invention include: in the solution provided by the embodiment of the present invention, after determining the terminal that needs to receive the paging message, the network side transmits the paging message to the terminal at one or more frequency points, and the terminal determines The network side transmits the frequency point of the paging message of the terminal, selects the frequency point at which the paging message is received according to the determination result, and receives the paging message for the terminal at the selected frequency point. It can be seen that the present invention solves the problem of how the paging message of the terminal at each frequency point in the small bandwidth system is transmitted.

The present application is described as a flowchart, and/or block diagram of a method, apparatus (system), and computer program product of an embodiment. 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 processor of a general purpose computer, a special purpose computer, an embedded processor or other programmable data processing device to produce a machine for executing instructions by a processor of a computer or other programmable data processing device Means are provided for implementing the functions specified in one or more of the flow or in one or more blocks of the flow chart.

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

These computer program instructions can also be loaded onto a computer or other programmable data processing device to perform a series of operational steps on a computer or other programmable device to produce computer-implemented processing on a computer or other programmable device. The instructions executed above provide steps for implementing the functions specified in one or more blocks of the flowchart or in a block or blocks of the flowchart.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

Obviously, various modifications and variations can be made to the invention by those skilled in the art. Without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims (37)

A method for transmitting a paging message is applied to a small bandwidth system in which a plurality of frequency points are arranged in a data column of a system bandwidth and a part of the terminals are configured to perform data transmission in each frequency point, wherein the The method includes: the network side determines a terminal that needs to receive the paging message; and the network side transmits the paging message to the terminal at one or more frequency points; wherein, for the terminal in the connected state, only the terminal on the network side When the data transmission frequency transmits the paging message to the terminal, and the network side only transmits the system broadcast message at a specific frequency, the method further includes: when the data transmission frequency of the terminal is not a specific frequency, the network side is The terminal hops to transmit the paging message to the terminal at a specific frequency point after reading the broadcast message of the system at a specific frequency point; or; when the data transmission frequency of the terminal is not a specific frequency point, the network side After the terminal hops to a specific frequency point to read the system broadcast message, and before receiving the read system broadcast message completion signaling of the terminal, transmitting the terminal at a specific frequency point Paging messages. The method for transmitting a paging message according to claim 1, wherein, for the terminal in the idle state, the network side transmits the paging message to the terminal only at a specific frequency point. The method for transmitting a paging message according to claim 1, wherein the method further comprises: for the terminal in the connected state, before the network side transmits the paging message to the terminal, the high-level server passes the Iub interface for a period of time The length T2 is notified to the base station transmitting the paging message. The method for transmitting a paging message according to claim 1, wherein, for the terminal in the connected state, the method for the network side to transmit the paging message to the terminal at the corresponding frequency point comprises: the network side according to the discontinuous reception DRX mechanism, Dispatching the terminal to receive the paging message by using the control channel of the paging wireless network temporary identifier P-RNTI scrambling at the corresponding frequency point, and transmitting the paging message to the terminal through the shared channel according to the scheduling at the corresponding frequency point; Alternatively, the network side schedules the terminal to receive the paging message at the corresponding frequency point by using a specific wireless network temporary identifier RNTI scrambled control channel according to the set time period, and transmits the message through the shared channel according to the scheduling at the corresponding frequency point. The paging message of the terminal; or, the network side transmits the paging message through the control channel of the specific RNTI scrambling at the corresponding frequency point according to the set time period; or, the network side according to the set time period, at the corresponding frequency A physical downlink shared channel PDSCH transmitted by a specific RNTI scrambled with known demodulation information is transmitted at the point; this known Demodulating the PDSCH transmission resource information includes resource candidate position or positions, the modulation scheme, and a code rate. The method for transmitting a paging message according to claim 4, wherein, according to the DRX mechanism, the network side schedules the paging message to be received by the P-RNTI scrambled control channel at the corresponding frequency point, and corresponds to the scheduling according to the scheduling. When the paging message of the terminal is transmitted through the shared channel at the frequency point, the same P-RNTI or different P-RNTI is used for the terminals at different data transmission frequencies. The method for transmitting a paging message according to claim 4, wherein the network side transmits the paging message through the control channel of the specific RNTI scrambling at the corresponding frequency point according to the set time period. The information includes: the network side sends a specific RNTI scrambled control channel at the corresponding frequency point according to the set time period, so that the network side sends a paging message indicating a specific meaning; or the network side follows the set A time period, in which a specific RNTI scrambled control channel carrying a changed valuetag value is transmitted at a corresponding frequency point, and the changed valuetag value represents a specific meaning of the paging message. The method for transmitting a paging message according to claim 6, wherein the specific meaning of the paging message is: a paging message whose system message is changed. The method for transmitting a paging message according to claim 4, further comprising: the network side transmitting the information of the set time period to the terminal in advance. The method for transmitting a paging message according to any one of the preceding claims, further comprising: the frequency at which the network side transmits the paging message through high layer signaling or entity layer signaling before transmitting the paging message. The point information is sent to the terminal. The method for transmitting a paging message according to claim 9, wherein the high layer signaling is radio resource control RRC signaling. The method for transmitting a paging message according to any one of the preceding claims, wherein the specific frequency point is an initial access frequency point of the terminal; or the specific frequency point is a primary frequency point, and when the network side is only one When transmitting a system broadcast message at a frequency point, the frequency point of the transmission system broadcast message is the main frequency point; or the specific frequency point is a small frequency bandwidth point located in the center of the system bandwidth. A method for transmitting a paging message is applied to a small bandwidth system in which a plurality of frequency points are arranged in a data column of a system bandwidth, and a part of terminals are configured to perform data transmission in each frequency point, The method includes the following steps: the terminal determines a frequency point at which the network side transmits the paging message to the terminal; the terminal selects a frequency point at which the paging message is received according to the determination result, and receives the frequency point at the selected frequency point. a paging message of the terminal; wherein, when the terminal is in the connected state, the terminal determines that the frequency at which the network side transmits the paging message to the terminal is the data transmission frequency of the terminal, and transmits the system only at the specific frequency point. When the message is broadcasted, the terminal further includes: when the data transmission frequency of the terminal is not a specific frequency point, the terminal receives the broadcast of the terminal at a specific frequency point within a period of time after the frequency hopping to the specific frequency point to read the system broadcast message. Calling a message; or; when the terminal's own data transmission frequency is not a specific frequency point, after hopping to a specific frequency point to read the system broadcast message, and before transmitting the system broadcast message completion signaling to the network side, the specific The paging message to the terminal is received at the frequency. The method for transmitting a paging message according to claim 12, wherein, when the terminal is in an idle state, the terminal determines a frequency point at which the network side transmits the paging message to the terminal, and specifically includes: determining that the network side transmits the terminal The frequency at which the paging message is located is a specific frequency point; the terminal selects the frequency point at which the paging message is received according to the determination result, and specifically includes: the terminal selects the specific frequency point as the frequency point at which the paging message is received by itself. The method for transmitting a paging message according to claim 12, wherein the terminal receives the paging message for the terminal at the selected frequency point, specifically: the terminal passes the selected frequency according to the network side according to the DRX mechanism. Scheduling the control channel of the P-RNTI scrambling using the paging wireless network temporary identification, and transmitting at the selected frequency point The shared channel receives the paging message transmitted to the terminal by the network side; or, according to the set time period, the terminal uses the specific wireless network to temporarily identify the RNTI scrambled control channel according to the selected frequency on the network side. Dispatching, receiving, by the shared channel, the paging message transmitted by the network side to the terminal at the selected frequency point; or, the terminal receiving the network through the control channel of the specific RNTI scrambled at the selected frequency point according to the set time period The paging message transmitted to the terminal by the road side; or the terminal transmitted by the PDSCH on the PDSCH receiving network with the necessary necessary demodulation information scrambled by the specific RNTI at the corresponding frequency point according to the set time period The paging message is known; the known necessary demodulation information includes a transmission PDSCH resource location or a plurality of resource candidate locations, a modulation scheme, and a code rate. The method for transmitting a paging message according to claim 14, wherein the terminal receives the paging message transmitted by the network side by the specific RNTI scrambled control channel at the selected frequency point according to the set time period, Specifically, the terminal determines that the network side sends a paging message indicating a specific meaning when receiving the specific RNTI scrambled control channel at the selected frequency point according to the set time period; or, the terminal follows the set time period. When receiving a specific RNTI scrambled control channel carrying a changed valuetag value at the selected frequency point, it is determined that the network side sends a paging message indicating a specific meaning. The method for transmitting a paging message according to claim 15, wherein the specific meaning of the paging message is: a paging message whose system message is changed. The method for transmitting a paging message according to claim 15, wherein the method further comprises: receiving, by the terminal, the information of the set time period sent by the network side before receiving the paging message. The method for transmitting a paging message according to any one of the preceding claims, wherein the terminal determines a frequency at which the network side transmits the paging message to the terminal, and the method includes: according to the agreement with the network side, the terminal Determining the frequency at which the network side transmits the paging message to the terminal; or, the terminal receives the information of the frequency point of the transmission paging message sent by the network side through the high layer signaling or the entity layer signaling, and determines the network side according to the information. The frequency at which the paging message for the terminal is transmitted. The method for transmitting a paging message according to claim 17, wherein determining, according to the information, a frequency point at which the network side transmits the paging message to the terminal, the method specifically includes: the information includes a first variable and a second variable; A variable indicates a list of frequency points for transmitting the paging message, and the second variable is a flag bit for transmitting the paging message at the frequency point where the terminal is located; when the value of the second variable is FALSE and the first variable indicates a frequency point The frequency point is a specific frequency point, and the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point; the value of the second variable is FALSE, and the first variable indication includes a specific frequency point and When the data transmission frequency of the terminal is multiple frequency points, the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is two or more frequency points including a specific frequency point and a data transmission frequency point of the terminal. ; When the value of the second variable is TRUE and the first variable indicates a frequency point, the frequency point is a specific frequency point, and the terminal determines that the frequency point at which the network side transmits the paging message to the terminal is a specific frequency point and the frequency point The data transmission frequency of the terminal; when the value of the second variable is TRUE and the first variable indication is empty, the terminal determines that the frequency at which the network side transmits the paging message to the terminal is the data transmission frequency of the terminal. . The method for transmitting a paging message according to claim 18, wherein the higher layer signaling is radio resource control RRC signaling. A transmission base station for paging a message, characterized in that the base station comprises: a terminal determining unit for determining a terminal that needs to receive a paging message; and a paging message transmission unit for transmitting at one or more frequency points a paging message to the terminal; wherein, for the terminal in the connected state, the paging message transmission unit is further configured to: if only the paging message of the terminal is transmitted on the data transmission frequency of the terminal, and only the network side Transmitting a system broadcast message at a specific frequency point: when the data transmission frequency of the terminal is not a specific frequency point, at a specific frequency point after the terminal hops to a specific frequency point to read the system broadcast message Transmitting a paging message to the terminal; or transmitting at a specific frequency point after the terminal hops to a specific frequency point to read the system broadcast message and before receiving the terminal's read system broadcast message completion signaling The paging message to the terminal. The base station according to claim 21, wherein the paging message transmission unit is configured to: for a terminal in an idle state, transmit a paging message to the terminal only at a specific frequency point. interest. The base station according to claim 21, wherein the paging message transmission unit is further configured to: before receiving the paging message to the terminal, receive a time length T2 of the time period sent by the upper layer server through the Iub interface. The base station according to claim 24, wherein the paging message transmission unit is configured to: for the terminal in the connected state, transmit the paging message to the terminal at the corresponding frequency point according to the following method: according to the discontinuous reception DRX The mechanism, at the corresponding frequency point, schedules the terminal to receive the paging message by using the control channel of the paging wireless network temporary identifier P-RNTI scrambling, and transmits the paging of the terminal through the shared channel according to the scheduling at the corresponding frequency point. Or, according to the set time period, the terminal is used to receive the paging message by using the specific wireless network temporary identifier RNTI scrambled control channel at the corresponding frequency point, and is transmitted through the shared channel according to the scheduling at the corresponding frequency point. The paging message to the terminal; or, according to the set time period, transmitting the paging message through the control channel scrambled by the specific RNTI at the corresponding frequency point; or, the network side is at the corresponding frequency point according to the set time period The PDSCH transmission paging message is transmitted through a specific RNTI scrambled, known necessary demodulation information; the known necessary demodulation information includes transmitting PDSCH resources Resource candidate position or positions, the modulation scheme, and a code rate. The base station according to claim 24, wherein the paging message transmission unit is configured to: use a P-RNTI scrambled control channel at a corresponding frequency point according to a DRX mechanism The terminal is scheduled to receive the paging message, and when the paging message is transmitted to the terminal through the shared channel according to the scheduling, the same P-RNTI or different P-RNTI is used for the terminals on different data transmission frequencies. The base station according to claim 24, wherein the paging message transmission unit is configured to: according to the set time period, transmit a paging message through a specific RNTI scrambled control channel at a corresponding frequency point according to a set time period: Setting a time period, sending a specific RNTI scrambled control channel at the corresponding frequency point, indicating that the network side sends a paging message indicating a specific meaning; or, according to the set time period, transmitting the specific frequency at the corresponding frequency point The RNTI scrambled control channel carrying the changed valuetag value, the changed valuetag value indicating the specific meaning of the paging message. The base station according to claim 26, wherein the specific meaning of the paging message is: a paging message in which the system message is changed. The base station of claim 24, wherein the paging message transmission unit is further configured to: send the information of the set time period to the terminal in advance. The base station according to any one of claims 21 to 28, wherein the paging message transmission unit is further configured to transmit the paging message through high layer signaling or entity layer signaling before transmitting the paging message. The frequency information is sent to the terminal. A transmission terminal for paging a message, the terminal includes: a frequency point determining unit, configured to determine a frequency point at which the network side transmits a paging message to the terminal; a paging message receiving unit, configured to select a frequency point at which the paging message is received according to the determination result, and receive a paging message for the terminal at the selected frequency point; wherein, when the terminal is in the connected state, the broadcasting The message receiving unit is further configured to: if it is determined that the frequency point at which the network side transmits the paging message to the terminal is the data transmission frequency of the terminal, and only transmits the system broadcast message at the specific frequency point: When the data transmission frequency is not a specific frequency point, the broadcast message of the terminal is received at a specific frequency point within a period of time after the frequency hopping to the specific frequency point to read the system broadcast message; or; When the point is not a specific frequency point, after the frequency hopping to the specific frequency point to read the system broadcast message and before transmitting the system broadcast message completion signaling to the network side, the paging message to the terminal is received at the specific frequency point. The terminal according to claim 30, wherein the frequency determining unit is configured to: when the terminal is in an idle state, determine that a frequency point at which the network side transmits the paging message to the terminal is a specific frequency point; the paging message The receiving unit is configured to: select a specific frequency point as a frequency point at which the paging message is received by itself. The terminal according to claim 30, wherein the paging message receiving unit is configured to: receive a paging message for the terminal at the selected frequency point according to the following method: according to the DRX mechanism, according to the selected frequency point of the network side By using the scheduling of the control channel scrambled by the P-RNTI to temporarily identify the P-RNTI, the paging message of the terminal transmitted by the network side is received through the shared channel at the selected frequency point; or, according to the set time period According to the network side at the selected frequency by using a specific The wireless network temporarily identifies the scheduling of the RNTI scrambled control channel, and receives the paging message transmitted by the network side to the terminal through the shared channel at the selected frequency point; or, according to the set time period, at the selected frequency point Receiving, by a specific RNTI scrambled control channel, a paging message transmitted to the terminal by the network side; or, according to a set time period, demodulation information known to be descrambled by a specific RNTI at a corresponding frequency point The PDSCH receives the paging message transmitted to the terminal by the network side; the known necessary demodulation information includes a transmission PDSCH resource location or a plurality of resource candidate locations, a modulation scheme, and a code rate. The terminal according to claim 32, wherein the paging message receiving unit is configured to: receive, according to the set time period, a pair of network side transmissions by using a specific RNTI scrambled control channel at the selected frequency point according to the set time period. The paging message of the terminal: when receiving the specific RNTI scrambled control channel at the selected frequency point according to the set time period, determining that the network side sends a paging message indicating a specific meaning; or, according to the setting During the time period, when a specific RNTI scrambled control channel carrying a changed valuetag value is received at the selected frequency point, it is determined that the network side sends a paging message indicating a specific meaning. The terminal of claim 33, wherein the specific meaning of the paging message is: a paging message in which the system message changes. The terminal of claim 33, wherein the paging message receiving unit is further configured to: receive the information of the set time period sent by the network side before receiving the paging message. The terminal according to any one of claims 30 to 35, wherein the frequency point determining unit is configured to: determine, according to an agreement with the network side, a frequency point at which the network side transmits the paging message to the terminal; or The information about the frequency point of the transmission paging message sent by the network side through the high layer signaling or the entity layer signaling is determined, and the frequency at which the network side transmits the paging message to the terminal is determined according to the information. The terminal according to claim 36, wherein the frequency determining unit is configured to: receive information about a frequency point of the transmission paging message sent by the network side through high layer signaling or entity layer signaling, where the information includes the first a variable and a second variable; the first variable indicates a list of frequency points for the transmission of the paging message, and the second variable is a flag bit for transmitting the paging message at the frequency at which the terminal is located; the value of the second variable is FALSE, and the When a variable indicates a frequency point, the frequency point is a specific frequency point, and the frequency point at which the network side transmits the paging message to the terminal is determined to be a specific frequency point; the value of the second variable is FALSE, and the first variable is When indicating a plurality of frequency points including a specific frequency point and a data transmission frequency point of the terminal, determining that the frequency point at which the network side transmits the paging message to the terminal is two points including a specific frequency point and a data transmission frequency point of the terminal. More than one frequency point; when the value of the second variable is TRUE, and the first variable indicates a frequency point, the frequency point is a specific frequency point, and the frequency point at which the network side transmits the paging message to the terminal is determined to be Specific frequency point and the terminal Data transmission frequency point; When the value of the second variable is TRUE and the first variable indicates to be empty, it is determined that the frequency point at which the network side transmits the paging message to the terminal is the data transmission frequency of the terminal.