WO2014110833A1

WO2014110833A1 - Information transmission method, detection method and device thereof

Info

Publication number: WO2014110833A1
Application number: PCT/CN2013/070793
Authority: WO
Inventors: 徐月巧; 王轶; 周华
Original assignee: 富士通株式会社
Priority date: 2013-01-21
Filing date: 2013-01-21
Publication date: 2014-07-24
Also published as: CN104885513A

Abstract

An information transmission method, detection method and device thereof, the information transmission method comprising: transmitting on a preset frequency domain resource a system message or an updated system message, and/or the scheduling information scheduling the system message or the updated system message, the preset frequency domain resource occupying part of the whole system bandwidth. Alternatively, a network side device defines the low-bandwidth user equipments (UE) in the same operation bandwidth as one user group; and transmitting on the operation bandwidth of each user group the common information containing a paging message, a transmission power control instruction or the random access response information, and/or the scheduling information scheduling the paging message or random access response information in the common information. An embodiment of the present invention improves resource utilization rate.

Description

Information transmitting method, detecting method and device thereof

The present invention relates to the field of communications, and in particular, to an information sending method, a detecting method, and a device thereof. Background technique

Machine to machine (Μ2Μ), also known as Machine-type Communication (MTC), refers to data communication between machines that do not require human intervention. For example, a machine type device (herein referred to as an MTC UE) may be a wireless user device (User Equipment, UE) for collecting measurement information and reporting this information to a server at a specific time. MTC UEs can be used in a variety of applications, such as remote sensing, smart measurements, and speed tracking.

3GPP RAN1 initiated research on low-cost MTC (low-cost MTC), mainly analyzing six cost-reduction techniques and summarizing it to TR36.888. The six low-cost technologies mean:

1) The maximum bandwidth is reduced, indicating that the maximum bandwidth supported by the MTC UE is reduced to a lower bandwidth, such as 1. 4fflz, 3 will z or 5fflz. 2) Single receiving antenna; 3) Lower peak rate; 4) Reduced transmit power; 5) Half-duplex mode; 6) Supportable transmission mode (Transmission Modes) reduction.

Among them, the most concerned cost-reduction technology is the reduction of the maximum bandwidth, indicating the maximum bandwidth reduction supported by the MTC UE. For example, if the MTC UE exists in an LTE system with a system bandwidth of 20 z, the conventional user equipment can support the system bandwidth of 20 z, and the maximum bandwidth supported by the MTC UE is lower than that of the 20 z. For example, 1. 4fflz, 3 will z or 5fflz.

A current method of supporting low bandwidth MTC UEs is to coexist in existing LTE systems. MTC UEs coexist in the LTE system, which means that MTC UEs with low bandwidth capability need to work normally in large bandwidth LTE systems, which requires standardized support. One of the main problems is that MTC UEs with low bandwidth capability cannot demodulate the traditional Physical Down Control Channel (PDCCH) transmitted over the entire system bandwidth.

FIG. 1 is a schematic diagram of an LTE system in which MTC UEs coexist in 20 will. As shown in Figure 1, the maximum bandwidth of the MTC UE is the physical resource blocks (PBs) of the LTE system, that is, 1. 4 MHz. The traditional PDCCH occupies one frame of the front wide Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division) Multiplexing, OFDM) Symbol, which spans the entire system bandwidth in the frequency domain. The MTC UE cannot demodulate the PDCCH due to the limited working bandwidth.

In addition, because the maximum working bandwidth is reduced, the MTC UE can only send and receive data within a limited bandwidth. From the perspective of the number of MTC UEs that can be supported, the maximum bandwidth reduction also limits the capacity of the supported MTC UEs. However, if different frequency domain locations are configured for different MTC UEs that support low bandwidth capability, it will not affect the MTC UE capacity to a certain extent.

2 is a schematic diagram of low bandwidths with different frequency domain location configurations for different MTC UEs. As shown in FIG. 2, the maximum bandwidth supported by the MTC UEK UE2, the UE3, and the UE4 is 1. 4 MHz, but the low-bandwidth frequency domain positions of the MTC UE1 and the UE2 are the same, and the low-frequency frequency domain positions of the MTC UE3 and the UE4 are Additional area.

1 and FIG. 2 are both low-bandwidth MTC UEs coexisting with conventional users in a large-bandwidth LTE system, except that all MTC UEs in FIG. 1 operate at the same low bandwidth, and different MTC UEs in FIG. 2 support the same. The low bandwidth frequency domain locations are different to support more MTC UEs. Since the legacy PDCCH is always transmitted over the entire system bandwidth, whether the PDCCH is mapped to a Common Search Space (CSS) or mapped to a UE-specific Search Space (USS), the above two types None of the low bandwidth MTC UEs can demodulate this legacy PDCCH.

The content carried by the PDCCH is called Downlink Control Information (DCI). The DCI can carry dedicated scheduling information to a specific user equipment. It can also carry public scheduling information or public information to certain users. Equipment or all user equipment in the cell.

For the DCI carrying common scheduling information to some user equipments or all user equipments in the cell to indicate the location of the resource where the public information is located, for example, System Information Blocks (SIBs) / Paging messages / messages 2 ( Message2, msg2) DCI, the DCI is identified by the corresponding system information radio network temporary identifier (System Information RNTI, SI-RNTI) / Paging message radio network temporary identifier (Paging RNTI, P-RNTI) / random access radio network temporary identifier (Random Access RNTI, RA-RNTI) scrambles and maps to the common search space, ie CSS; for DCI that directly carries common information such as Transmit Power Control Command (TPC command) to certain user equipments, the downlink The control information directly carries the TPC command, which is scrambled by the corresponding Transmit Power Control RNTI (TPC-RNTI) and mapped to the common search space.

For DCI mapped to CSS, the current solution to the above problem is to send scheduling information and corresponding PDSCH. The information is replicated and transmitted on the low bandwidth supported by each MTC UE. At this time, each low-bandwidth frequency domain location area has a DCI (by PDCCH bearer or ePDCCH bearer) to schedule common information, and each low-bandwidth frequency domain location sends a copy of the public information.

In the process of implementing the present invention, the inventors have found that when the scheduling information and the corresponding PDSCH information are copied and transmitted on the low bandwidth supported by each MTC UE, a large amount of control signaling overhead is consumed to schedule the public information; A low-bandwidth frequency domain location needs to send a copy of the common information, and also consumes a large amount of PDSCH resources to transmit the same information, resulting in insufficient resource utilization and limited performance. At present, there is no effective way to obtain the above scheduling information and PDSCH information.

It should be noted that the above description of the technical background is only for the purpose of facilitating the clear and complete description of the technical solutions of the present invention, and is convenient for understanding by those skilled in the art. The above technical solutions are not considered to be well known to those skilled in the art simply because these solutions are set forth in the background section of the present invention. Summary of the invention

The embodiment of the invention provides an information sending method, an information detecting method and a device thereof, which can ensure that a low bandwidth MTC UE can demodulate downlink control information for scheduling common information, and does not consume a large amount of control signaling and resources, thereby improving Resource utilization.

According to a first aspect of the present invention, a method for transmitting information is provided, the method comprising: transmitting a system message or an updated system message on a preset frequency domain resource, and/or scheduling the system message or the updated Scheduling information of the system message; wherein the preset frequency domain resource occupies a part of the bandwidth of the entire system bandwidth.

A second aspect of the present invention provides a method for transmitting information, the method comprising: notifying an updated system message of the low bandwidth user equipment when the low bandwidth user equipment is in a connected state. A third aspect of the present invention provides an information detecting method. For a low bandwidth user equipment, the method includes: detecting, by a low bandwidth user equipment, a scheduling system message or an updated system message on a preset frequency domain resource. Scheduling information; wherein the preset frequency domain resource occupies a part of the bandwidth of the entire system bandwidth.

A fourth aspect of the present invention provides a method for receiving information, the method comprising: receiving an updated system message notified by a network side when a low bandwidth user equipment is in a connected state.

A fifth aspect of the present invention provides an information sending apparatus, where the apparatus includes: a first sending unit, configured to send a system message or an updated system message on a preset frequency domain resource. And/or scheduling information of the system message or the updated system message; wherein, the preset Frequency domain resources occupy part of the bandwidth of the entire system bandwidth.

A sixth aspect of the present invention provides an information transmitting apparatus, where the apparatus includes: a second notifying unit, configured to notify an updated system message when a low bandwidth user equipment is in a connected state The low bandwidth user equipment.

A seventh aspect according to an embodiment of the present invention provides a base station, comprising the apparatus of the fifth aspect, or the apparatus of the sixth aspect.

An eighth aspect of the present invention provides an information detecting apparatus, where the apparatus includes: a first detecting unit, configured to detect a scheduling system message or an updated system on a preset frequency domain resource. The scheduling information of the message; wherein the preset frequency domain resource occupies a part of the bandwidth of the entire system bandwidth.

A ninth aspect of the embodiments of the present invention provides an information receiving apparatus, where the apparatus includes: a third receiving unit, configured to receive an update of a network side notification when a low bandwidth user equipment is in a connected state System message.

According to a tenth aspect of the embodiments of the present invention, there is provided a user equipment comprising the apparatus of the eighth aspect or the apparatus of the ninth aspect.

An eleventh aspect of the embodiments of the present invention provides an information sending method, where the method includes: sending, when a system message is updated, information that updates a system message to a low bandwidth user equipment;

The updated system message is sent on the preset frequency domain resource, where the preset frequency domain resource occupies a part of the bandwidth of the entire system bandwidth.

A twelfth aspect of the embodiments of the present invention provides an information detecting method, where the method includes: receiving information of an update system message notified by a network side;

Obtaining an updated system message on the preset frequency domain resource according to the preset scheduling information.

A thirteenth aspect of the embodiments of the present invention provides an information sending apparatus, where the apparatus includes: a third sending unit, configured to send, to a low bandwidth user equipment, information for updating a system message;

And a fourth sending unit, configured to send the updated system message on the preset frequency domain resource, where the preset frequency domain resource occupies a part of the bandwidth of the entire system bandwidth.

According to a fourteenth aspect of the embodiments of the present invention, there is provided an information detecting apparatus, the apparatus comprising: a fourth receiving unit, configured to receive information of an update system message notified by a network side; a unit, the fourth information acquiring unit is configured to preset in a frequency domain according to preset scheduling information. Get updated system messages on the resource.

A fifteenth aspect of the embodiments of the present invention provides a method for sending information, including: using a low bandwidth user equipment that is in the same working bandwidth as a user group;

Transmitting public information including a paging message or a transmission power control instruction or random access response information on a working bandwidth of each user group, and/or scheduling a paging message or random access corresponding information in the public information Scheduling information.

A sixteenth aspect of the embodiments of the present invention provides an information detecting method, where the method further includes: detecting, according to a working bandwidth of the low bandwidth user equipment, scheduling information for scheduling public information, where the public information includes a paging message or Random access response information, or detecting a transmit power control command on a working bandwidth of the low bandwidth user equipment;

A seventeenth aspect of the embodiments of the present invention provides an information transmitting apparatus, the apparatus comprising: a fifth sending unit, configured to use a low bandwidth user equipment in the same working bandwidth as a user a group that transmits public information including a paging message or a power control command or random access response information, and/or schedules a paging message or random access in the public information on a working bandwidth of each user group The scheduling information of the response message.

An eighteenth aspect of the embodiments of the present invention provides a base station comprising the apparatus of the seventeenth aspect. A nineteenth aspect of the present invention provides an information detecting apparatus, the apparatus further comprising: a third information detecting unit, configured to detect a scheduling public on a working bandwidth of the low bandwidth user equipment Scheduling information of the information, the paging information or the random access response information, or the detection of the transmission power control instruction.

A twentieth aspect of the embodiments of the present invention provides a user equipment comprising the apparatus of the nineteenth aspect.

A twenty-first aspect of the present invention provides a communication system, comprising: the base station according to the seventh aspect, and the user equipment according to the tenth aspect, or the system includes eighteenth The base station and the user equipment of the twentieth aspect.

A twenty-second aspect of the embodiments of the present invention provides a computer readable program, wherein the program causes a computer to execute in the detecting device or a base station when the program is executed in an information transmitting device or a base station The information transmitting method described in the first aspect, the eleventh aspect, or the fifteenth aspect.

A twenty-third aspect of an embodiment of the present invention provides a storage medium storing a computer readable program And the computer readable program causes the computer to execute the information transmitting method of the first aspect, the eleventh aspect, or the fifteenth aspect in the detecting device or the base station.

A twenty-fourth aspect of the embodiments of the present invention provides a computer readable program, wherein when the program is executed in an information detecting device or a user device, the program causes a computer to be at the detecting device or user device The information detection method described in the second aspect, the twelfth aspect, and the sixteenth aspect is performed.

A twenty-fifth aspect of the embodiments of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a second aspect in the detecting device or user equipment, The information detection method described in the twelfth aspect and the sixteenth aspect.

The beneficial effects of the embodiments of the present invention are: sending a system message on a predetermined frequency domain resource, scheduling scheduling information of the system message, or sending public information according to a working bandwidth of a low bandwidth user equipment, or scheduling the public information. The information can ensure that the low bandwidth MTC UE can demodulate the control information for scheduling the system message and obtain the system message, or enable the low bandwidth user equipment to detect the common information on its working bandwidth without consuming a large amount of control signaling. And resources, improve resource utilization.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, which illustrate the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not limited in scope. The embodiments of the present invention include many variations, modifications, and equivalents within the spirit and scope of the appended claims.

Features described and/or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, in combination with, or in place of, features in other embodiments. .

It should be emphasized that the term "comprising" or "comprising" is used to mean the presence of a feature, component, step or component, but does not exclude the presence or addition of one or more other features, components, steps or components.

DRAWINGS

The above and other objects, features and advantages of the embodiments of the present invention will become more <RTIgt

FIG. 1 is a schematic diagram of an LTE system in which MTC UEs coexist in 20 wills;

2 is a schematic diagram of low bandwidths of different MTC UEs having different frequency domain location configurations;

3 is a flowchart of a method for transmitting and detecting information according to Embodiment 3 of the present invention;

Figure 4 is a diagram showing an example of Embodiment 6 of the present invention; Figure 5 is a flowchart of a method for transmitting and detecting information according to Embodiment 9 of the present invention;

Figure 6 is a block diagram showing the structure of an information transmitting apparatus according to Embodiment 11 of the present invention;

Figure 7 is a block diagram showing the structure of an information detecting apparatus according to Embodiment 15 of the present invention;

Figure 8 is a block diagram showing the structure of an information detecting apparatus according to Embodiment 16 of the present invention;

Figure 9 is a block diagram showing the configuration of an information detecting apparatus in accordance with a seventeenth embodiment of the present invention. detailed description

Various embodiments of the present invention will be described below with reference to the accompanying drawings. These embodiments are merely exemplary and are not limiting of the invention. The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In this embodiment, user equipments with different low bandwidth configurations are referred to as low bandwidth user equipment, such as MTC.

UE.

In order to solve the problems in the prior art, embodiments of the present invention provide an information sending method, an information detecting method, and an apparatus thereof.

In this embodiment, the scheduling information of the traditional scheduling system message (SI) mapped to the CSS is sent in a predetermined frequency domain location, and the scheduled system message is also sent in the predetermined frequency domain location, thus, low The bandwidth user equipment, such as the MTC UE, may detect scheduling information in the predetermined frequency domain location, and then obtain corresponding system information according to the scheduling information.

Or, scheduling information that is traditionally mapped to the CSS to schedule other public information, such as scheduling Paging messages, and scheduling information of random access related information (such as Message 2, (Message2, msg2)), according to the low bandwidth user equipment A low-bandwidth user equipment that is to be in the same frequency domain position, such as an MTC UE, is used as a user group, and scheduling information for scheduling Paging messages, random access related information, and the foregoing information are sent for each user group. In addition, the traditional control information corresponding to the CSS carrying the TPC command is sent according to the frequency domain location where the low bandwidth user equipment is located. The above is equivalent to mapping scheduling information for scheduling a Paging message, random access related information, and control information carrying a transmission power control command to a group-specific Common Search Space (Group-specific CSS). Different user groups have different search spaces.

The above problems in the prior art can be solved by the above method of the embodiment of the present invention.

The information transmitting method, the information detecting method, and the apparatus thereof according to the embodiments of the present invention are described below with reference to the accompanying drawings. Example 1

Embodiment 1 of the present invention provides a method for transmitting information. On the network side, the method includes:

The system message or the updated system message is transmitted on the preset frequency domain resource, and/or the scheduling information of the system message or the updated system message is scheduled; wherein the preset frequency domain resource occupies a part of the bandwidth of the entire system bandwidth.

It can be known from the above embodiment that the system message (SI) or the updated system information, or the scheduling information of the system information that schedules the system message or the update is sent on a predetermined frequency domain resource, so that the low bandwidth user equipment is initially When accessing the network, or after accessing the network, the scheduling information can be obtained on a preset frequency domain resource, such as a resource block RB in which the system message is located, a modulation coding method (MCS), and the like. Obtaining the above system message or the updated system message according to the scheduling information.

Through the foregoing embodiment, the low-bandwidth user equipment can obtain the foregoing scheduling information on the preset frequency domain resource, further obtain the system message or the updated system message, does not consume a large amount of control signaling and resources, and improves resource utilization. rate.

Example 2

The embodiment 2 of the present invention provides an information detection method. For a low-bandwidth user equipment, the method includes: a low-bandwidth user equipment detecting scheduling information of a scheduling system message or an updated system message on a preset frequency domain resource; The preset frequency domain resources occupy part of the bandwidth of the entire system bandwidth.

With the foregoing embodiment, the low-bandwidth user equipment can obtain the foregoing scheduling information on the preset frequency domain resource, so that the system message or the updated system message can be obtained according to the scheduling information, and does not consume a large amount of control signaling and resources. , improve resource utilization.

In this embodiment, the method may further include: acquiring the system message or the updated system message according to the detected scheduling information.

In the foregoing embodiments 1 and 2, the low-bandwidth user equipment may be an MTC UE, and the system message (SI) and the updated system message may be carried by the PDSCH, which is similar to the prior art, and details are not described herein again. Scheduling information for scheduling system messages or updated system messages may be transmitted using a DCI bearer and transmitted on a PDCCH or an enhanced PDCCH (ePDCCH);

In addition, the scheduling information of the system message for scheduling the update is also carried by the MIB, transmitted on the broadcast channel (PBCH) or the enhanced broadcast channel (ePBCH); or the configuration related scheduling information is pre-configured and notified to the low bandwidth user equipment. ;

In the foregoing Embodiments 1 and 2, the partial bandwidth occupied by the preset frequency domain resource is not greater than the low bandwidth user. The maximum bandwidth supported by the device is the same for all low-bandwidth user equipments. That is, the preset frequency domain resource parameters may be cell-specific or MTC-specific.

In the foregoing embodiments 1 and 2, the preset frequency domain resource may occupy a part of the bandwidth of the entire system bandwidth center position, for example, when the working bandwidth of the low bandwidth user equipment is 1. 4 legs ₂ , the preset frequency The domain resource can occupy the center of the entire system bandwidth of 6 PRBs, as shown in Figure 1 at the center of the frequency domain resources.

In the above embodiment, the system message may include a master information block (MIB), or a system information block (SIBs). The above system messages can be sent and detected by the above method.

For example, for system information block SIBs, the SIBs message needs to be carried by the corresponding scheduling information (the existing standard is PDCCH bearer), and the SIB message is carried by the PDSCH. Therefore, in the existing standard, the low-bandwidth user equipment cannot demodulate the PDCCH of the traditional SIBs, so that the location of the PDSCH carrying the SIBs cannot be known.

Example 3

The information transmitting method and the information detecting method in the embodiments of the present invention will be described below with reference to the accompanying drawings. The low-bandwidth user equipment is used as an example for the MTC UE, but is not limited to the MTC UE. The user equipment working in the low-bandwidth mode can adopt the following method. The system message is the SIBs, and the low-bandwidth user equipment initially accesses the network. The RRC connection process is established as an example for description.

Fig. 3 is a flow chart showing the method of transmitting and detecting information according to the third embodiment of the present invention. As shown in FIG. 3, the method includes: a network side:

Step 301: The network side sends a system message in a predetermined frequency domain resource, and/or schedules information for scheduling the system message.

In this embodiment, the network side, such as the base station eNB1 on the network side, when the low bandwidth user equipment initially accesses the network, the base station may be a base station serving the low bandwidth user equipment;

The predetermined frequency domain resources are as described in Embodiments 1 and 2, and are not described herein again;

In this embodiment, the system message (SI) is similar to the prior art, and is briefly described herein: The system message is configured by a system information block (SIB), and the SIB includes at least SIB1 and SIB2, and the SIB1 The following information is included: related mapping information of other SIB messages and a sending period; the SIB2 includes the following information: some common parameter configurations of the cell to which the user equipment belongs, and the public parameters may include common parameters of the physical layer, such as parameter configuration of random access. Information, etc.

In this embodiment, the SIB message is carried by the PDSCH, and the related scheduling information may be DCI information scrambled by the SI-RNTI, for example, DCI 1A or DCI 1C _; the DCI information can dynamically indicate the sending system message. The resource block RB where the PDSCH is located, Modulation and coding scheme (MCS), etc.

There is no limit to the order in which the system messages and scheduling information are sent.

When the low-bandwidth user equipment initially accesses the network, uplink synchronization needs to be completed, so that an RRC connection can be established and subsequent uplink data transmission can be performed. Therefore, in the process of initially accessing the network by the low-bandwidth user equipment, the foregoing system message needs to be obtained to perform RRC connection establishment.

Therefore, on the user equipment side, when the low bandwidth user equipment is initially accessed, the method further includes the following steps: Step 302: The low bandwidth user equipment may detect scheduling information of the system message in the predetermined frequency domain resource;

In this embodiment, the low-bandwidth user equipment may detect the DCI carrying the scheduling information on the predetermined frequency domain resource, such as the center 6 PRBs, and perform descrambling using the SI-RNTI to obtain the scheduling information, as indicated by the The RB, MCS, and other information of the system message are similar to the prior art, and are not described here.

Step 303: Obtain the system message by using the scheduling information.

In this embodiment, the low-bandwidth user equipment can obtain the resource blocks RB, MCS, and the like where the PDSCH of the system message is located according to the scheduling information, so that the low-bandwidth user equipment can detect the corresponding resource according to the scheduling information. The system message, the detection process is as in the prior art, and details are not described herein again.

Step 304: The low bandwidth user equipment performs an RRC connection establishment.

In this embodiment, the RRC connection establishment process is similar to the prior art, and is not described here. In the RRC connection establishment process, a random access procedure is required, and the public parameters required by the random access procedure may be The system message is obtained.

Step 305: The low bandwidth user equipment sends capability information to the network side, where the capability information includes a maximum bandwidth that the user equipment can work.

On the network side:

Step 306: The network side receives the capability information, and adjusts the low bandwidth user equipment to a corresponding working bandwidth.

In this embodiment, the network side can increase the system capacity in order to support more low-bandwidth user equipments. After receiving the capability information sent by the user equipment, the network side can adjust the low-bandwidth user equipment to different frequency domain locations. On the low bandwidth, it is adjusted to the respective working bandwidth (corresponding to a specific frequency domain location), as shown in FIG. 2; wherein, the RRC reconfiguration message can be used for adjustment. Step 307: Notify the low bandwidth user equipment of the adjusted working bandwidth.

In this way, the low-bandwidth user equipment adjusts its working bandwidth to the working bandwidth (low bandwidth) notified by the network side, and performs uplink and downlink data transmission and reception on the low bandwidth.

In the above embodiment, the network side maps the scheduling information for scheduling the system message to the cell-specific CSS, and all the low-bandwidth user equipments demodulate the DCI scrambled by the SI-RNTI in the same search space, thereby obtaining the system message.

In this embodiment, if the above system message is updated, the information of the system message update of the low bandwidth user equipment needs to be notified. On the network side, the method further includes:

Step 308, updating the system message.

Step 309: Notify the low bandwidth user equipment of information that updates the system message.

The Paging message can be received by using the Paging message. The Paging message can be received in the manner described in the embodiment of the present invention. The detailed method is described in the following Embodiments 7-9, and details are not described herein.

However, it is not limited to being sent by using the above Paging message, and may also be sent by other messages.

Step 310: Send the updated system message, and/or scheduling information of the system message that schedules the update, on a preset frequency domain resource.

In this embodiment, step 310 is similar to step 301;

In this embodiment, the scheduling information for scheduling the updated system message may be carried by the DCI, and may also be carried by a PBCH channel or a Master Information Block (MIB) message transmitted on the enhanced PBCH channel. The DCI or MIB is sent on the preset frequency domain resource, so that all low-bandwidth user equipments demodulate the DCI or MIB on the same search space to obtain the scheduling information.

In addition, step 310 and step 309 may be performed simultaneously or sequentially, not limited to the sequence in FIG. 3; on the user equipment side:

Step 311: Receive information of the updated system message.

The network side may carry the information by using the Paging message. When the Paging message is sent in the manner of the embodiment of the present invention, the specific receiving manner may be adopted in the manner of the embodiment of the present invention, as described in the following embodiments. No longer.

Step 312: The low-bandwidth user equipment adjusts its working bandwidth to the preset frequency domain resource. As shown in FIG. 2, if the low-bandwidth user equipment occupies the frequency domain location of the UE1 and the UE2 group, the system message is sent. And the preset frequency domain resource of the scheduling information is the middle 6PRBs, so that the low bandwidth user setting The working bandwidth needs to be adjusted to the bandwidth corresponding to the preset frequency domain resource, and then the scheduling information of the updated system message is detected from the preset frequency domain resource, and the updated system message is obtained.

Step 313 and step 314 are similar to step 302 and step 303, and are not described herein again.

In the above embodiment, step 412 is an optional step. If the working bandwidth of the low bandwidth user equipment is exactly on the preset frequency domain resource, the step may be omitted.

According to the foregoing embodiment, the low-bandwidth user equipment can obtain scheduling information of the scheduling system message or the updated system message on the preset frequency domain resource, and then obtain the system message or the updated system message, and use the system message to perform data reception. And send. Through the above method, not only the resource utilization rate is improved, but also a large amount of control signaling can be saved.

In the above embodiment, the scheduling information for scheduling the system message and the updated system message is carried by the DCI or the MIB, and is applicable to the user equipment in the RRC connected state or in the idle state.

In this embodiment, in order to further save the signaling overhead, when the low bandwidth user equipment is in the RRC connection state, the updated system message may be directly notified to the low bandwidth user equipment. This case will be described in the following embodiment 4.

In this embodiment, in order to further save the signaling overhead, after the system message is updated, the scheduling information of the system message for scheduling the update may not be sent, but the network side pre-configures and notifies the low-bandwidth user equipment, at the low After receiving the information of updating the system message, the bandwidth user equipment directly receives the updated system message according to the preset scheduling information. Thus, in Fig. 3, scheduling information may not be transmitted in step 310, and step 313 may be omitted.

In the above embodiments 1-3, the updated system message may be SIB1 indicating whether other SIBs are updated. If in the SIB1, when the other SIBs indicated are updated, the following steps can also be used to know the updated SIB messages. Thus, the above method further includes:

And searching for other SIBs updated on the preset frequency domain resource in the corresponding system information window according to the pre-configured related information and the system information window (SI-WIND0W) configured in the SIB1;

Similar to the prior art, the system information window (Si-window) is a time window, which is used to indicate that the user equipment receives other SIBs messages (such as SIB2, SIB3, etc) outside the SIB1 in the time window. No longer.

Alternatively, when the other SIBs are updated, the following steps may be used to obtain other SIB messages that are updated: The scheduling information of the other SIBs is detected on the preset frequency domain resources, and the scheduling information is determined according to the detected scheduling information. The other SIBs of the update are obtained on the preset frequency domain resource.

Example 4

Embodiment 4 of the present invention provides a method for transmitting information. On the network side, the method includes: notifying the low bandwidth user equipment of the updated system message when the low bandwidth user equipment is in the connected state.

In this embodiment, the updated system message may be notified by RRC signaling, but is not limited to the above signaling, and may be notified by any other signaling.

Example 5

Embodiment 5 of the present invention further provides an information receiving method. On the user equipment side, the method includes: receiving an updated system message notified by the network side when the low bandwidth user equipment is in a connected state.

The network side notifies the updated system message by using RRC signaling, but is not limited to the foregoing signaling, and may also be notified by any other signaling.

It can be seen from the foregoing embodiment that the updated system message can be directly notified to the low bandwidth user equipment by signaling, which can save signaling overhead.

Example 6

Figure 4 is a diagram showing an example of Embodiment 6 of the present invention. As shown in Figure 4, the method includes:

Step 40 is broad, 408, as described in Embodiment 3, and details are not described herein again.

Step 409, notifying the updated system message to the low bandwidth user equipment.

In this embodiment, it is notified by RRC signaling.

Step 410: Receive the updated system message.

This allows the updated system message to be used for data reception and transmission.

Compared with Embodiment 3, this embodiment can save signaling overhead.

The above embodiment is an embodiment of transmitting a system message, and a method of how to transmit other information transmitted in the CSS will be described below. For example, the other message may include a Paging message, a TPC command, and random access related information (such as message 2, ie, Msg2).

Example 7

Embodiment 7 of the present invention further provides an information transmitting method. On the network side, the method includes:

A low bandwidth user equipment at the same working bandwidth is used as a user group; public information including a paging message or a power control command or random access response information is transmitted on the working bandwidth of each user group, and/or Scheduling information of paging messages or random access response information in the public information is scheduled. In the present embodiment, the low bandwidth user equipment having the same frequency domain location ₀ as the common information may be a user group (MTC Group), such as a Paging message, TPC commands and msg2 are MTC Group units, the set of work The low bandwidth is sent on. In the public information, the TPC Commands do not need scheduling information and can be directly carried by the control information, so that the control information carrying the TPC commands is sent on the low bandwidth of the group of user equipments, which has the same for each group. Search space, such that the low bandwidth user equipment can directly detect the TPC commands; in addition, in the public information, the Paging message and msg2 need scheduling information, and corresponding scheduling of the paging message or random access response information is scheduled. The information is also sent on the low bandwidth of the group of MTC UEs, and has the same search space for each group, so that the low bandwidth user equipment detects the scheduling information, and then obtains the public information at the resource location indicated by the scheduling information. , such as Paging message, random access response (RAR) information. The public search space can be regarded as a group-specific Common Search Space (Group-specific CSS). Different groups have separate different CSS.

In addition, in this embodiment, the network side receives the capability information reported by the user equipment in the RRC connection state, and may adjust different low bandwidth user equipments to their working bandwidths according to the information included in the capability information, as shown in the figure. 2 is shown. In this way, the network side can send the above information to the specific public search space of the group.

In this case, the method may further include:

The capability information sent by the user equipment is received, and the capability information includes a maximum bandwidth that the user equipment can work. According to the capability information, the bandwidth of the low bandwidth user equipment with low bandwidth working capability is adjusted to the respective working bandwidth.

In addition, the adjusted bandwidth is also notified to the low bandwidth user equipment, as described in Embodiment 3, and details are not described herein.

Example 8

The eighth embodiment of the present invention provides an information detection method. The method further includes: detecting scheduling information for scheduling public information on a working bandwidth of the low bandwidth user equipment, where the public information includes a paging message or random access response information. Alternatively, the power control command is detected on the operating bandwidth of the low bandwidth user equipment.

With the foregoing embodiment, for a paging message or a random access response message, the low bandwidth user equipment can obtain scheduling information for scheduling the public information on its working bandwidth, so that the public information can be obtained according to the scheduling information.

In this case, for the paging message or the random access response message, the method further includes: The scheduling information obtains the public information.

For the power control command, the low bandwidth user equipment can directly detect the control information carrying the power control instruction on its working bandwidth, thereby obtaining the power control instruction without scheduling information. In this embodiment, when the user equipment performs the network and establishes an RRC connection, the capability information may be reported to the network side, so that the network side adjusts different low-bandwidth user equipments to their respective jobs according to the bandwidth information included in the capability information. Bandwidth, as shown in Figure 2. In this way, the network side can send the above information to the specific public search space of the group.

In this case, the method further includes: transmitting capability information of the low bandwidth user equipment to the network side, where the capability information includes a maximum bandwidth that the low bandwidth user equipment can work; The capability information determines the working bandwidth of the low bandwidth user equipment. In this way, the low bandwidth user equipment detects scheduling information for scheduling the public information on its working bandwidth, and obtains corresponding public information according to the scheduling information.

The following is an example for description. The common information is described as an example of a paging message, a transmission power control command, or a random access response message.

Example 9

Fig. 5 is a flow chart showing the method of transmitting and detecting information according to the ninth embodiment of the present invention. As shown in FIG. 5, the method includes: On the user equipment side:

Step 501: The low bandwidth user equipment establishes an RRC connection with the network side.

The specific establishment process is similar to the prior art, and is not described here again. In the process of establishing an RRC connection, the required system message is obtained as described in the embodiment 4, and details are not described herein again.

After the RRC connection is established, the steps 502 to 504 are performed. The foregoing steps are similar to the steps 30Γ307 and 40Γ407 shown in FIG. 3 and FIG. 4, and details are not described herein again.

Step 505: Use a low-bandwidth user equipment that is in the same working bandwidth as a user group, and send public information on a working bandwidth of each user group.

For example, the public information is a paging message or a random access response message, and the public information is carried by the PDSCH.

Step 506: A low-bandwidth user equipment that is in the same working bandwidth is used as a user group, and scheduling information for scheduling the public information is sent on a working bandwidth of each user group.

The scheduling information may be carried by the DCI and transmitted in the PDCCH.

The order of execution of the above steps 506 and 507 is not limited, and may be performed in combination. FIG. 5 is only the present invention. Example.

Step 507: The low-bandwidth user equipment detects scheduling information for scheduling public information on its working bandwidth. The specific detection mode is similar to the prior art, and details are not described herein again.

508. Obtain corresponding public information according to the detected scheduling information.

The manner of how to obtain the public information is similar to the prior art, and details are not described herein again.

In this embodiment, for the case where the common information is the TPC commands, for example, the TPC commands may be carried by the control information, and the low-bandwidth user equipment directly detects the control information that carries the TPC commands to obtain the TPC commands. Step 506, step 508, and step 507 are correspondingly: detecting control information carrying the TPC commands on the working bandwidth of the low bandwidth user equipment.

The following describes the Paging message, TPC Commands, and Msg2 as examples.

Example 1, for Paging messages

In the prior art, the Paging message is carried by the PDSCH, and the scheduling information is a DCI indication scrambled by the P-RNTI. All users in the cell demodulate the DCI scrambled by the P-RNTI in the same search space, learn the scheduling message of the Paging, and then demodulate the PDSCH carrying the Paging message at the corresponding resource location according to the scheduling information. By comparing the user identifier carried in the Paging message with its own UE ID, it is known whether the paging message is sent to itself. The Paging message can be used to notify the UE system of changes in the message, including the MIB message and the SIB message.

In this embodiment, the low-bandwidth MTC UEs operating in different frequency domain locations, the low-bandwidth MTC UEs in the same frequency domain location are grouped, and receive the P-RNTI-scrambled DCI information to obtain scheduling information, so according to the scheduling. The information demodulates the PDSCH carrying the Paging message at the corresponding time-frequency location.

For the same group of MTC UEs, the scheduling information of the Paging message has a Group-specific CSS, and the DCI carrying the scheduling information and the PDSCH carrying the paging message of the DCI scheduling are all sent on the low bandwidth of the group of MTC UEs; The MTC UE, the scheduling information of the Paging message is sent on the low bandwidth of the MTC UE groups, and the same is true for the scheduled Paging message transmission. The DCIs used by different user groups to demodulate scheduling Paging messages may be scrambled with cell-specific P-RNTI or group-specific P-RNTI.

Example 2: For the TPC command, the TPC command is used to adjust the uplink transmit power of the user, and the closed loop power control command is sent.

In the traditional LTE system, one sends a 2-bit TPC command in the uplink DCI signaling to adjust the uplink transmit power of the user; one is to send a TPC command in the DCI 3/3A signaling. For the DCI 3/3A The TPC command is sent in the signaling, and the DCI 3/3A is scrambled by the TPC-RNTI notified by the upper layer RRC signaling, mapped to the CSS, and carries the TPC command commands of multiple UEs. DCI 3/3A scrambled by TPC-RNTI with CSS is transmitted over the entire system bandwidth like other DCI signaling with CSS. For low bandwidth MTC UEs with different frequency domain locations, the DCI signaling cannot be demodulated.

In this embodiment, similar to the example 1, the low-bandwidth MTC UEs having the same frequency domain location are grouped, and the DCI 3/3A signaling carries the TPC command command of the same group of MTC UEs, and has a Group-specif ic CSS. Different groups of MTC UEs demodulate the TPC-RNTI scrambled DCI 3/3A on the low bandwidth of their respective operations, so as to know that their own TPC commando different groups can use the cell-specific TPC to demodulate the DCI information for transmitting the TPC command. - RNTI scrambling, or group-specific TPC-RNTI scrambling.

Example 3: For random access related information, the msg2 message, the msg2 transmission is the second step in the contention random access procedure, after the eNB detects the random access sequence, determines the RA according to the detected time-frequency position of the sequence. - RNTI, then transmit the DCI scrambled by the RA-RNTI in the second step, thereby scheduling Random Access Response (RAR) information transmitted in the PDSCH. The DCI information scrambled by the RA-RNTI is similar to the DCI information scrambled by the P-RNTI and the TPC-RNTI, mapped in the CSS, and transmitted over the entire system bandwidth. For an MTC UE with only low bandwidth capability, the RAI that is scrambled by the RA-RNTI cannot be demodulated, so that the RAR cannot be known.

Similar to the example 2 and the example 3, for the low-bandwidth MTC UEs operating in different frequency domain locations, the random access sequence can be sent on the low bandwidth of each working, so that the eNB clearly knows which group when demodulating the random access sequence. The MTC UE is transmitting a random access sequence. The eNB sends the RA-RNTI scrambled DCI and the msg2 scheduled by the DCI, that is, the RAR information carried on the PDSCH, on the working bandwidth of the corresponding group for the random access of the different groups of MTC UEs.

In the foregoing embodiment, the method for obtaining the foregoing system message and the public information by the low-bandwidth user equipment may be used in combination according to the actual scenario, and details are not described herein again.

It will be understood by those skilled in the art that all or part of the steps in the foregoing embodiments may be implemented by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, and the program is executed. All or part of the steps in the foregoing embodiment may be included. The storage medium may include: a ROM, a RAM, a magnetic disk, an optical disk, and the like.

The embodiment of the invention further provides an information sending device and an information detecting device, a user equipment and a base station. As described in the examples below. Since the information transmitting device and the information detecting device, the user equipment, and the base station solve the problem The principle is similar to the above-mentioned method based on the information transmitting device and the information detecting device, the user equipment, and the base station. Therefore, the implementation of the device, the user equipment, and the base station can be referred to the implementation of the method, and the repeated description is not repeated.

Example 10

Embodiment 10 of the present invention further provides an information transmitting apparatus. The device includes: a first sending unit, configured to send a system message or an updated system message on a preset frequency domain resource, and/or scheduling information of the system message or the updated system message; The preset frequency domain resource occupies part of the bandwidth of the entire system bandwidth.

In this embodiment, the preset frequency domain resource is as described in Embodiment 1-9, and details are not described herein again.

The device may be a network-side functional entity, such as a base station, and its workflow is as described in Embodiment 1, and is not described herein.

With the information sending apparatus of this embodiment, the network side may send the system message or the updated system message on the preset frequency domain resource, so that the low bandwidth user equipment acquires the scheduling information and the corresponding system message on the frequency domain resource or Updated system messages improve resource utilization and save on signaling overhead.

Example 11

Figure 6 is a block diagram showing the structure of an information transmitting apparatus in accordance with an eleventh embodiment of the present invention. As shown in FIG. 6, the device 600 includes: a first sending unit 601, which functions similarly to the embodiment 10, and details are not described herein again.

As shown in FIG. 6, the apparatus 600 may further include an information updating unit 602, configured to update the system message, and notify the first sending unit 601 of the updated system message, so that the device 600 passes the updated system message to the first sending unit. 601 is sent to the user equipment side.

As shown in FIG. 6, the apparatus 600 may further include a first notification unit 603 for notifying the low bandwidth user equipment of the information of the update system message. The user equipment receives the system message and the scheduling information for scheduling the system message at a preset central location according to the information.

In this embodiment, as described in Embodiment 3, the information of the update system message may be carried by the Paging message, and the scheduling information for scheduling the Paging message and the Paging message are both sent in the group-specific CSS, as in Embodiment 7- 9 is not repeated here.

In the above embodiment, the information of the update system message may be carried by the DCI and transmitted on the PDCCH. In addition, it may also be carried by the MIB, and the DCI and the MIB are both sent on the preset frequency domain resources.

After the user equipment accesses the network and establishes an RRC connection with the network side, the user equipment reports the capability information to the network side. In this case, the device 600 further includes a first receiving unit 604 and a first processing unit 605, The first receiving unit 604 is configured to receive the capability information that is sent by the user equipment, where the capability information includes a maximum bandwidth that the user equipment can work. The first processing unit 605 is configured to use the low bandwidth working capability according to the capability information. The bandwidth of the bandwidth user equipment is adjusted to the respective working bandwidth. Specifically, as described in Embodiment 3, details are not described herein again.

In the above embodiment, after the system message is updated, the first sending unit 601 may not send the scheduling information of the updated system message, and the scheduling information is pre-configured by the network side and notifies the user equipment. The user equipment obtains the scheduling information, and after receiving the information of the system message notified by the network side, obtains the updated system information according to the scheduling information. In this case, the apparatus 600 may further include: an information configuration unit and a notifying unit (not shown) for configuring the scheduling information; the notifying unit is configured to notify the user equipment of the scheduling information.

With the information sending apparatus of this embodiment, the network side may send the system message or the updated system message on the preset frequency domain resource, and may send the information of the update system message to the user equipment side, so that the low bandwidth user equipment is The scheduling information and the corresponding system message or the updated system message are obtained on the frequency domain resource, which improves resource utilization and saves signaling overhead.

Example 12

Embodiment 12 of the present invention further provides an information transmitting apparatus. The difference from the embodiment 10 and the embodiment 11 is that the transmitting device further includes a second sending unit, configured to use the low bandwidth user equipment in the same working bandwidth as a user group in each user group. The public information including the paging message or the transmission power control instruction or the random access response information, and/or the scheduling information of the paging message or the random access response information in the common information are transmitted on the working bandwidth. As described in Embodiments 7 to 9, there is no further description here.

With the information sending apparatus of this embodiment, the network side may send the system message or the updated system message on the preset frequency domain resource, and send other public information and/or schedule the other public information by using the group-specific ess. The scheduling information is such that the low-bandwidth user equipment obtains scheduling information and corresponding system messages or updated system messages on the frequency domain resources, obtains corresponding public information on respective working bandwidths, improves resource utilization, and saves The signaling overhead solves the problems in the prior art.

The above embodiment 12 can be used in combination with the embodiments 10 and 11.

Example 13

Embodiment 13 of the present invention provides an information sending apparatus, where the apparatus includes a second notification unit, configured to notify an updated system message of the low bandwidth when a low bandwidth user equipment is in a connected state. Household equipment.

In this way, when the low bandwidth user equipment is in the connected state, the updated system message can be directly notified to the low bandwidth user equipment, further reducing the signaling overhead.

In addition, in this embodiment, the apparatus may further include: a first sending unit, as described in Embodiment 11, for transmitting system messages and/or scheduling information of scheduling the system message; and further comprising an information updating unit 602, The system message is updated, and the second notification unit sends the updated system message to the user equipment.

In the foregoing embodiments 10 to 13, the device may be a network-side functional entity, such as a base station, as shown in the corresponding embodiment in FIG. 4, and details are not described herein again. The foregoing embodiments may be used in any combination according to actual conditions, such as the use of the embodiment 10 or 11 and the embodiment 12, and the details are not described herein again.

Example 14

Embodiment 14 of the present invention provides a base station, which may include the apparatus described in Embodiments 10 to 13 above. The working mode is as described in the foregoing embodiment, and details are not described herein again.

With the base station of this embodiment, the system message or the updated system message may be sent on a preset frequency domain resource, and other public information is sent by the group-specific CSS and/or scheduling information of the other public information is scheduled. The low-bandwidth user equipment obtains the scheduling information and the corresponding system message or the updated system message on the frequency domain resource, obtains corresponding public information on the working bandwidth, improves resource utilization, and saves signaling overhead. The problem existing in the prior art is solved.

Example 15

Figure 7 is a block diagram showing the configuration of an information detecting apparatus according to a fifteenth embodiment of the present invention. As shown in FIG. 7, the apparatus 700 includes: a first detecting unit 701, configured to detect scheduling information of a scheduling system message or an updated system message on a preset frequency domain resource; wherein, the preset Frequency domain resources occupy part of the bandwidth of the entire system bandwidth.

It can be seen from the foregoing embodiment that the low-bandwidth user equipment can obtain the scheduling information on the preset frequency domain resources, so as to further obtain the corresponding system message or the updated system message, which solves the problems in the prior art.

As shown in FIG. 7, the apparatus 700 further includes: a first information acquiring unit 702, where the first information acquiring unit 702 is configured to acquire the system message or the updated system on the preset frequency domain resource according to the detected scheduling information. Message.

In this embodiment, the preset frequency domain resource is as described in Embodiment 1, and details are not described herein again.

Example 16 Figure 8 is a block diagram showing the configuration of an information detecting apparatus according to a sixteenth embodiment of the present invention. As shown in FIG. 8, the device 800 includes a first detecting unit 801 and a first information acquiring unit 802. Further, when the system message is an updated system message, the device 800 further includes: a second receiving unit 803, a second receiving unit 803, configured to receive information of an update system message notified by the network side;

And the first detecting unit 701 detects the scheduling information of the updated system message when the second receiving unit 703 receives the information of the updated system message. The information of the update system message is carried by the paging message, but is not limited to such a message, and any other message may be used.

In this embodiment, as shown in FIG. 8, the apparatus 800 may further include a second processing unit 806, and the second processing unit 806 is configured to: after receiving the information of the updated system message received by the second receiving unit 803, the working bandwidth is Adjust to the default frequency domain resource. After adjusting the working bandwidth, the first detecting unit 801 can detect the corresponding scheduling information and the updated system information on the adjusted working bandwidth. It should be noted that the component is an optional component, and may be omitted when the working bandwidth of the low bandwidth user equipment is in a preset frequency domain resource corresponding to the system message and the scheduling information that sends the update.

In this embodiment, the scheduling information of the system message for scheduling the update is carried by the downlink control information DCI or the MIB message, as described in the foregoing Embodiment 1-9, and details are not described herein again.

After the low-bandwidth user equipment accesses the network and establishes a connection, the related capability information can be sent to the network side. In this case, the apparatus 800 further includes: a third transmitting unit 804 and a third receiving unit 805;

The third sending unit 804 is configured to send the capability information of the low-bandwidth user equipment to the network side, where the capability information includes a maximum bandwidth that the low-bandwidth user equipment can work; and the third receiving unit 805 is configured to receive the network-side return according to the The capability information determines the working bandwidth of the low bandwidth user equipment.

It can be seen that the low-bandwidth user equipment can obtain scheduling information on a preset frequency domain resource, so as to further obtain a corresponding system message or an updated system message, which solves the problems in the prior art; After the bandwidth user equipment establishes a connection with the network side, the capability information can also be sent to the network side, so that the network side adjusts its working bandwidth according to the capability information.

Example 17

Figure 9 is a block diagram showing the configuration of an information detecting apparatus in accordance with a seventeenth embodiment of the present invention. The device 900 includes: a second information detecting unit 901, configured to detect scheduling information of a paging message or random access response information in the scheduling public information on a working bandwidth of the low bandwidth user equipment, or detect and send Power control instructions. It can be seen that the low-bandwidth user equipment can detect the scheduling information sent by the network side or directly detect the TPC commands on its working bandwidth, so that the public information can be obtained according to the scheduling information, which solves the problems in the prior art.

As shown in FIG. 9, the device 900 further includes: a second information acquiring unit 902, configured to obtain, according to the scheduling information detected by the second information detecting unit 901, the paging message or the random access response information. The public information.

For the TPC commands, the second information acquisition unit 902 is not required, and the component is an optional component.

In the above embodiment, the device 900 can be used in combination with the above-described Embodiment 15 and Embodiment 16. In the above-mentioned Embodiments 15-17, when the detected updated system message is SIB1 indicating whether the other SIB is updated, the apparatus may further include: a third information acquiring unit (not shown) when the other SIBs are updated. The third information acquiring unit is configured to search for the updated frequency domain resource in the corresponding system information window according to the pre-configured related information and the system information window (SI-WIND0W) configured in the SIB1. The SIB is configured to detect scheduling information of the other SIBs on the preset frequency domain resources, and obtain the updated other SIBs on the preset frequency domain resources according to the detected scheduling information.

Example 18

Embodiment 18 of the present invention also provides an information receiving apparatus. The apparatus includes: a fourth receiving unit (not shown) for receiving an updated system message notified by the network side when the low bandwidth user equipment is in the connected state.

In this way, the device can receive and transmit data according to the updated system message.

Furthermore, the device can be used in combination with the above embodiments.

Example 19

The embodiment of the present invention provides a user equipment, which may be the apparatus described in any of the embodiments 15 to 17, and details are not described herein again.

Example 20

The embodiment of the present invention further provides a communication system, which includes the base station and the embodiment described in Embodiment 14.

User equipment as described in 19.

The workflow of the communication system is as described in Embodiments 1-9, and details are not described herein again. The embodiment of the invention further provides a computer readable program, wherein when executed in an information transmitting device or a base station In the program, the program causes the computer to execute the information transmitting method as described in Embodiments 1, 3-4, 6-7, and 9 in the information transmitting device or the base station.

The embodiment of the invention further relates to a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the embodiments 1, 3-4, 6-7, 9 in the information transmitting device or the base station The information transmission method described.

An embodiment of the present invention further provides a computer readable program, wherein when the program is executed in an information detecting apparatus or a user equipment, the program causes a computer to execute Embodiment 2-3 in the information detecting apparatus or a base station, Information detection methods described in 5-6 and 8-9.

Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute Embodiments 2-3, 5-6, 8-9 in the detecting device or base station The information detection method described.

The above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software. The present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like. The present invention has been described in connection with the specific embodiments thereof, and it should be understood by those skilled in the art that these descriptions are not intended to limit the scope of the invention. A person skilled in the art can make various modifications and changes to the invention in accordance with the spirit and the principles of the invention, which are also within the scope of the invention.

Claims

claims

1. An information sending method, the method includes:

Send system messages or updated system messages on preset frequency domain resources, and/or schedule scheduling information of the system messages or updated system messages; wherein, the preset frequency domain resources occupy part of the entire system bandwidth. bandwidth.

2. The method according to claim 1, wherein the preset frequency domain resources occupy part of the bandwidth at the center of the entire system bandwidth.

3. The method according to claim 1 or 2, wherein the partial bandwidth occupied by the preset frequency domain resources is not greater than the maximum bandwidth supported by the low-bandwidth user equipment.

4. The method according to claim 1, wherein before sending the updated system message, the method further includes: notifying the low-bandwidth user equipment of the updated system message information.

5. The method according to claim 1, wherein the scheduling information for scheduling the updated system message is carried by downlink control information or a master information block (MIB).

6. The method according to any one of claims 1 to 5, wherein the method further includes: treating low-bandwidth user equipment in the same working bandwidth as a user group;

Transmitting public information including paging messages or sending power control instructions or random access response information on the operating bandwidth of each user group, and/or scheduling paging messages or random access response information in the public information scheduling information.

7. An information sending method, the method including: when the low-bandwidth user equipment is in a connected state, notifying the low-bandwidth user equipment of updated system messages.

8. The method according to claim 7, wherein the updated system message is notified through RRC signaling.

9. An information detection method. For low-bandwidth user equipment, the method includes:

The low-bandwidth user equipment detects the scheduling information of the scheduled system message or the updated system message on the preset frequency domain resource; wherein the preset frequency domain resource occupies part of the entire system bandwidth.

10. The method according to claim 9, wherein the method further includes:

Obtain the system message or updated system message on the preset frequency domain resource according to the detected scheduling information.

11. The method according to claim 9 or 10, wherein the preset frequency domain resource occupies a part of the bandwidth at the center of the entire system bandwidth.

12. The method according to any one of claims 9 to 11, wherein the partial bandwidth is not greater than the maximum bandwidth supported by the low-bandwidth user equipment.

13. The method according to claim 9 or 10, wherein when the system message is an updated system message, before detecting the scheduling information for scheduling the updated system message, the method further includes:

Receive updated system message information notified by the network side.

14. The method according to claim 13, wherein the scheduling information for scheduling the updated system message is carried by downlink control information or a MIB message.

15. The method according to claim 13, wherein after receiving the information to update the system message and before detecting the scheduling information of the scheduled system message, the method further includes:

Low-bandwidth user equipment adjusts the operating bandwidth to preset frequency domain resources.

16. The method according to any one of claims 9 to 12, wherein the method further includes:

The low-bandwidth user equipment detects the scheduling information of the paging message or the random access response information in the scheduling public information on the working bandwidth, or detects the transmission power control instruction in the public information.

17. The method according to claim 16, wherein the method further includes: obtaining the paging message or random access response information in the public information according to the detected scheduling information.

18. The method according to claim 13, wherein the updated system message is SIB1 indicating whether other system message blocks (SIBs) are updated, and when the indicated other SIBs are updated, the method further includes: according to Pre-configured relevant information and the system information window configured in the SIB1, search for other SIBs updated on the preset frequency domain resources in the corresponding system information window;

Or the scheduling information for scheduling the other SIBs is detected on the preset frequency domain resources, and the updated other SIBs are obtained on the preset frequency domain resources according to the detected scheduling information.

19. An information receiving method, the method includes:

When the low-bandwidth user equipment is in a connected state, receive updated system messages notified by the network side.

20. The method according to claim 19, wherein the updated system information is notified through RRC signaling.

21. An information sending device, the device includes:

A first sending unit, the first sending unit is configured to send system messages or updated system messages on preset frequency domain resources, and/or schedule scheduling information of the system messages or updated system messages; wherein, foretell The frequency domain resources assumed occupy part of the entire system bandwidth.

22. The device according to claim 21, wherein the preset frequency domain resources occupy part of the bandwidth at the center of the entire system bandwidth.

23. The apparatus according to claim 21 or 22, wherein the partial bandwidth occupied by the preset frequency domain resources is not greater than the maximum bandwidth supported by the low-bandwidth user equipment.

24. The device according to claim 21, wherein the device further includes:

Information update unit, the information update unit is used to update the system message;

A first notification unit, the first notification unit is used to notify low-bandwidth user equipment of information about updating system messages.

25. The apparatus according to claim 21, wherein the scheduling information for scheduling the updated system message is carried by downlink control information or a master information block (MIB) message.

26. The device according to any one of claims 21 to 25, wherein the device further includes:

The second sending unit is configured to treat low-bandwidth user equipment in the same working bandwidth as a user group, and send paging messages or power control instructions or random access messages on the working bandwidth of each user group. Public information including response information, and/or scheduling information for scheduling paging messages or random access response information in the public information.

27. An information sending device, the device includes:

A second notification unit, the second notification unit is configured to notify the low-bandwidth user equipment of updated system messages when the low-bandwidth user equipment is in a connected state.

28. The apparatus according to claim 27, wherein the second notification unit notifies the updated system message through RRC signaling.

29. A base station, the base station comprising the device described in any one of claims 21 to 26, or the device described in claim 27 or 28.

30. An information detection device, the device includes:

A first detection unit, the first detection unit is configured to detect scheduling system messages or scheduling information of updated system messages on preset frequency domain resources; wherein, the preset frequency domain resources occupy part of the entire system bandwidth. bandwidth.

31. The device according to claim 30, wherein the device further includes: A first information acquisition unit configured to acquire the system message or updated system message on the preset frequency domain resource according to the detected scheduling information.

32. The device according to claim 30 or 31, wherein the preset frequency domain resources occupy part of the bandwidth at the center of the entire system bandwidth.

33. The apparatus according to any one of claims 30 to 32, wherein the partial bandwidth is not greater than the maximum bandwidth supported by the low-bandwidth user equipment.

34. The device according to claim 30 or 31, wherein when the system message is an updated system message, the device further includes:

The second receiving unit is configured to receive the information of the updated system message notified by the network side; and the first detecting unit detects when the second receiving unit receives the information of the updated system message. Scheduling information of the updated system message.

35. The apparatus according to claim 34, wherein the scheduling information for scheduling the updated system message is carried by downlink control information or a MIB message.

36. The device according to claim 34, wherein the device further includes:

A second processing unit, the second processing unit is configured to adjust the working bandwidth to the preset frequency domain resource after receiving the information of the update system message received by the second receiving unit.

37. The device according to any one of claims 30 to 33, wherein the device further includes:

A second information detection unit, the second information detection unit is configured to detect the scheduling information of the paging message or the random access response information in the scheduling public information on the working bandwidth of the low-bandwidth user equipment, or detect the public transmission power Control instruction.

38. The device according to claim 37, wherein the device further includes:

A second information acquisition unit, the second information acquisition unit is configured to acquire the paging message or random access response information in the public information according to the scheduling information detected by the second information detection unit.

39. The device according to claim 34, wherein the updated system message is SIB1 indicating whether other SIBs are updated, and when the indicated other SIBs are updated, the device further includes:

The third information acquisition unit is configured to search for the preset frequency domain resources in the corresponding system information window according to the preconfigured relevant information and the system information window configured in the SIB1. Updated other SIBs; Or, the scheduling information for scheduling the other SIBs is detected on the preset frequency domain resources, and the updated other SIBs are obtained on the preset frequency domain resources according to the detected scheduling information.

40. An information receiving device, the device includes:

A fourth receiving unit, the fourth receiving unit is configured to receive updated system messages notified by the network side when the low-bandwidth user equipment is in a connected state.

41. A user equipment, the user equipment comprising the device described in any one of claims 30 to 39, or the device described in claim 40.

42. An information sending method, the method includes:

When the system message is updated, information to update the system message is sent to the low-bandwidth user equipment;

The updated system message is sent on preset frequency domain resources, where the preset frequency domain resources occupy part of the entire system bandwidth.

43. An information detection method, the device includes:

Receive updated system message information notified by the network side;

Obtain updated system information on preset frequency domain resources according to preset scheduling information.

44. An information sending device, the device includes:

A fourth sending unit, the fourth sending unit is used to send information updating system messages to low-bandwidth user equipment;

The fifth sending unit is configured to send updated system messages on preset frequency domain resources, wherein the preset frequency domain resources occupy part of the entire system bandwidth.

45. An information detection device, the device includes:

The fifth receiving unit, the fifth receiving unit is configured to receive the information of the updated system message notified by the network side; The fourth information obtaining unit, the fourth information obtaining unit is configured to receive the updated system message at the preset frequency according to the preset scheduling information. Get updated system messages on domain resources.

46. An information sending method, the method includes:

Treat low-bandwidth user equipment at the same working bandwidth as a user group;

Sending public information including paging messages or sending power control instructions or random access response information on the working bandwidth of each user group, and/or scheduling paging messages or random access corresponding information in the public information scheduling information.

47. An information detection method, the method further includes: Detect scheduling information that schedules public information on the working bandwidth of the low-bandwidth user equipment, where the public information includes paging messages or random access response information, or detect transmit power control on the working bandwidth of the low-bandwidth user equipment instruction;

48. The method according to claim 47, wherein the method further includes:

The paging message or random access response information in the public information is obtained according to the detected scheduling information.

49. An information sending device, the device includes:

The sixth sending unit is configured to treat low-bandwidth user equipment in the same working bandwidth as a user group, and send paging messages or send power control instructions or random messages on the working bandwidth of each user group. Public information including access response information, and/or scheduling information for scheduling paging messages or random access response messages in the public information.

50. A base station, comprising the device according to claim 49.

51. An information detection device, the device further includes:

A third information detection unit, the third information detection unit is used to detect the scheduling information of scheduling public information on the working bandwidth of low-bandwidth user equipment. The public information includes paging messages or random access response information, or detects transmission Power control instructions.

52. The device according to claim 51, wherein the device further includes:

A fifth information acquisition unit, the fifth information acquisition unit is configured to acquire the public information according to the detected scheduling information.

53. A user equipment, including the device according to claim 51 or 52.

54. A communication system, the system includes the base station of claim 29 and the user equipment of claim 41, or the system includes the base station of claim 50 and the user equipment of claim 53.

55. A computer-readable program, wherein when the program is executed in an information transmitting device or a base station, the program causes the computer to execute claims 1 to 8, 42, and 46 in the detecting device or base station. The information sending method according to any one of the claims. .

56. A storage medium storing a computer-readable program, wherein the computer-readable program causes a computer to execute in the detection device or base station as claimed in any one of claims 1 to 8, 42, and 46. method of sending information as described above.

57. A computer-readable program, wherein when the program is executed in an information detection device or user equipment, The program causes the computer to execute the information detection method as described in any one of claims 9 to 20, 43, 47 to 48 in the detection device or user equipment.

58. A storage medium storing a computer-readable program, wherein the computer-readable program causes a computer to execute any one of claims 9 to 20, 43, 47 to 48 in the detection device or user equipment. The information detection method described in the requirements.