WO2008083559A1

WO2008083559A1 - A method for indicating change of system information, a method for acquiring system information and the devices therefor

Info

Publication number: WO2008083559A1
Application number: PCT/CN2007/003900
Authority: WO
Inventors: Zhihong Lu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-12-29
Filing date: 2007-12-29
Publication date: 2008-07-17
Also published as: CN101212799B; CN101212799A

Abstract

A method for indicating the change of the system information includes: the network side sending control signaling to the user equipment UE through the layer 1/layer 2 control channel, which signaling carries the indication information for the change of the system information and/or the information of the label value for the main information block of the system information. In addition, a method for acquiring system information includes: the UE under connecting state listening the layer 1/layer 2 control channel, and acquiring the indication information for the change of the system information and/or the information of the label value for themain information block of the system information; when it is determined that the current label value of the main information block at network side differs from the label value of the main information block stored locally, reading the broadcast channel and comparing the label values of the other system information block in the main information block, and based on the scheduling information of the system information block provided in the main information block, acquiring the content of the corresponding system information block of which label value has changed. With the invention, the UE under connecting state could acquire the changed system information readily.

Description

Method for indicating system message change, method and device for acquiring system message

The present invention relates to the field of wireless communications, and in particular, to a method for indicating a system message change in a long-term evolution (LTE) system, and a User Equipment (UE) in a connected state acquires a changed system message. And a corresponding means and UE for indicating system message changes. Background technique

The system message includes: the timer and counter of the UE, the identifier (ID) of the Public Land Mobile Network (PLMN), the registration area ID, the parameters required for cell selection and reselection; the ID of the cell, the common channel Configuration information, measurement control messages, and more.

In the prior art, system messages are sent through a Broadcast Channel (BCH) by means of a Main Information Block (MB) and a System Information Block (SIB).

When the system message changes, the network side sends a paging message through the paging channel (PCH, paging channel) to notify the UE in the idle state or the cell paging channel (CELLJPCH) state, and the UE reads the paging message after receiving the paging message. The main message block tag value, if the tag value of the main message block is found to be different from the main message block tag value stored by it, the broadcast channel (BCH) is read, and the read is determined according to the tag value of the system message block included in the main message block. Which system message block on the broadcast channel is taken.

For the UE in the CELL-FACH state, when the system message changes, the network side sends a system message change indication through a forward access channel (FACH), and after receiving the indication, the UE reads the label value of the main message block. If the tag value of the main message block is found to be different from the tag of the main message block it stores, the broadcast channel (BCH) is read, and the read value of the system message block included in the main message block is determined according to the tag value of the system message block included in the main message block. Which system message block. For UEs in the cell-specific channel (CELL-DCH) state, the UE does not need to capture changed system messages.

In an LTE system, a UE has only two states: an idle state and a connected state. When the system message is sent When the user changes, for the UE in the idle state, the network side can send a page, and then the UE captures the corresponding system according to the paging message.

In the connected state, the UE also has a power saving mode, that is, when the activity of the UE packet is lower than a certain level, the network side controls the UE to enter the power saving mode. In the power-saving mode, the UE does not continuously send and receive data, that is, the UE may accept data for a period of time, and then sleep for a period of time. During the sleep time, the UE may not maintain uplink synchronization; when the uplink is not synchronized, if the UE does not want to For uplink access, it is necessary to capture some system parameters about access. Therefore, in this case, it is necessary to capture system messages, but in LTE, paging is only used for UEs in idle state, for the connected state. UE, paging is no longer considered to be needed. Therefore, in the prior art, for the UE in the connected state power saving mode, when the system message changes, the network side sends a Radio Resource Control (RRC) message to prompt the system message to change, but when the UE is in the UE During sleep, the RRC message cannot be immediately sent to the UE, and can only be buffered first. When the UE wakes up, the Media Access Control (MAC) on the network side can send the RRC message to the UE. This process requires primitive interaction between layers, making the operation complicated. Summary of the invention

The embodiment of the invention provides a method for indicating a change of a system message and a method for acquiring a system message, which facilitates a UE in a connected state to acquire a changed system.

The embodiment of the invention further provides an apparatus and a UE device for indicating a change of a system message.

A method of indicating a change in a system message, including:

The network side sends control signaling to the user equipment UE through the layer 1 layer 2 control channel, and carries indication information indicating that the system message changes and/or label value information of the system message main message block.

A method for obtaining system messages, including:

The UE listening layer 1 layer 2 control channel in the connected state captures indication information indicating that the system message changes and/or label value information of the system message main message block;

Comparing the tag value of the current main message block on the network side with the tag value of the locally stored main message block; Reading a tag value of another system message block in the main message block on the broadcast channel when the tag value of the current primary message block and the tag value of the locally stored primary message block are different;

Comparing the tag values of other system message blocks in the main message block, and capturing the corresponding system message block contents whose tag values have changed according to the scheduling information of the system message block provided in the main message block.

A device for indicating a change in a system message, comprising:

The signaling generating unit generates layer 1 layer 2 control signaling, and carries indication information indicating that the system message changes and/or label value information of the system message main message block;

The signaling sending unit sends the control signaling generated by the signaling generating unit to the user equipment UE through the layer 1 layer 2 control channel.

A user equipment, including:

The monitoring and capturing unit is configured to: when the user equipment UE is in the connected state, intercept the layer 1 layer 2 control channel, and capture indication information indicating that the system message changes and/or label value information of the system message main message block;

a system message obtaining unit, configured to: according to the captured indication information and/or the tag value information of the main message block, when it is determined that the current main message block tag value of the network side and the tag value of the locally stored main message block are different, The broadcast channel compares the tag values of other system message blocks in the main message block, and captures the contents of the corresponding system message block whose tag values have changed according to the scheduling information of the system message block provided in the main message block.

In the above method and device, the network side sends control signaling to the UE through the layer 1 layer 2 control channel, and carries the indication information indicating that the system message changes and/or the tag value information of the system message main message block; the UE in the connected state monitors Layer 1 layer 2 control channel, capturing indication information indicating that the system message changes and/or label value information of the system message main message block; determining the network side according to the captured indication information and/or the label value information of the main message block When the current primary message block tag value and the locally stored primary message block have different tag values, the broadcast channel is read, the tag values of other system message blocks in the main message block are compared, and according to the system message block provided in the main message block. The scheduling information captures the contents of the corresponding system message block whose tag value has changed. In this way, the UE in the connected state determines whether the system message is changed through the monitoring layer 1 layer 2 control channel; when the system message changes, the capture is timely System message after the change. The process of the UE acquiring the system message change indication is simple, avoids the trouble of requiring buffer in the prior art, and does not require inter-layer primitive interaction. DRAWINGS

1 is a schematic structural diagram of a layer 1 layer 2 control channel according to an embodiment of the present invention;

2 is a schematic structural diagram of a layer 2 layer 2 control channel according to an embodiment of the present invention;

3 is a schematic structural diagram of a layer 3 layer 1 control channel according to an embodiment of the present invention;

4 is a schematic structural diagram of a layer 1 layer 2 control channel according to Embodiment 4 and Embodiment 5 of the present invention; FIG. 5A, FIG. 5B, FIG. 5C, and FIG. 5D are schematic diagrams showing two different channel structures of a layer 6 layer 2 control channel according to an embodiment of the present invention; And multiplexing schematics;

6 is a schematic structural diagram of an apparatus for indicating a system message change according to the present invention;

FIG. 7 is a schematic structural diagram of a user equipment provided by the present invention. detailed description

The process of indicating the system message change and the UE acquiring the changed system message according to the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

The network side and the entire UE pre-arrange the common indication information indicating that the system message changes. When the system message changes, the network side sends the layer 1 layer 2 control signaling to the UE through the layer 1 layer 2 control channel, and carries the public indication information. Layer 1 Layer 2 Control Channel Structure A specific implementation, such as shown in Figure 1, includes the following cells:

1) a UE identifier (id: UE) cell, which is used to carry identifier information of the UE;

2) a public system message change indication cell, configured to carry public indication information indicating that the system message changes;

3) resource block assignment and modulation and coding mode cells, which are used to carry the specific modulation mode and coding mode information of the resource block assignment information and data;

At least the packet of the layer 1 layer 2 control signaling sent by the network side to the UE through the layer 1 layer 2 control channel The method includes: UE identification information, public system message change indication information, and resource block assignment and modulation and coding mode information. When the system message changes, the specific number and interval of sending the layer 1 layer 2 control signaling may be preset.

The UE side is divided into two types: the UE in the connected state power saving mode and the UE in the connected state non-power saving mode. The methods for how to obtain the changed system messages are respectively described below.

1. The UE in the connected state power saving mode, the steps of obtaining the system message are:

Step 11. When the UE in the connected state power-saving mode wakes up, the monitoring layer 1 layer 2 controls the channel, and when the public indication information notified to itself is captured, step 12 is performed;

Step 12: The UE reads the broadcast channel.

Step 13, the UE determines whether the label value of the current main message block on the broadcast channel and the label value of the locally stored main message block are the same, if the two are the same, the UE will stop reading the broadcast channel, if the two are different, continue to step 14;

Step 14. The UE reads the label value of other system message blocks in the main message block.

Step 15. The UE compares the label value of the other system message block with the corresponding label value of the other system message block stored locally. If the label value is different, the specific information is captured according to the scheduling information of the system message block provided in the main message block. System message block content.

The UE in the connected state in the non-power saving mode, the step of acquiring the system message is: Step 21: The UE continuously monitors the layer 1 layer 2 control channel, and when the public indication information notified to itself is captured, step 22 is performed;

Step 22: The UE reads the broadcast channel.

Step 23: The UE determines whether the label value of the current main message block on the broadcast channel and the label value of the locally stored main message block are the same. If the two are the same, the UE will stop reading the broadcast channel. If the two are different, proceed to step 24;

Step 24: The UE reads the label value of other system message blocks in the main message block.

Step 25: The UE compares the label value of the other system message block with the locally stored corresponding label value. If the label value is different, the UE captures according to the scheduling information of the system message block provided in the main message block. The specific system message block content.

In the foregoing Embodiment 1, when the system message changes, the network side sends the layer 1 layer 2 control signaling to the UE through the layer 1 layer 2 control channel, and carries the public indication information indicating that the system message changes. Therefore, the UE can learn that the system message changes by receiving the layer 1 layer 2 control signaling, and parsing the common indication information, thereby avoiding the trouble of requiring the cache change notification message in the prior art, and not requiring the inter-layer primitives. Interaction.

Example 2:

When the UE accesses the communication system, the network side uniquely assigns special identification information to the UE; that is, when the UE accesses the system, the network side allocates two UE identifiers to the UE, and one UI identifier is only used to receive normal data; The special identifier is used to indicate that the system message has changed, and the special identifier is also used to accept normal data. When the system message changes, the network side sends layer 1 layer 2 control signaling carrying special identification information to the UE through the layer 1 layer 2 control channel. Layer 1 Layer 2 Control Channel Structure A specific implementation, as shown in Figure 2, includes the following cells:

1) a UE special identifier cell, configured to carry special identifier information that is allocated to the UE to indicate that the system message changes when the UE accesses the communication system;

2) resource block assignment and modulation coding mode information, which is used to carry the specific modulation mode and coding mode information of the resource block assignment information and data;

Then, the layer 1 layer 2 control signaling sent by the network side to the UE through the layer 1 layer 2 control channel includes at least: UE special identifier information, resource block assignment, and modulation and coding mode information. When the system message changes, the specific number and interval of sending the layer 1 control signaling of the layer may be preset.

The UE side is divided into two types: the UE in the connected state power-saving mode and the UE in the connected state in the non-power-saving mode. The methods for obtaining the changed system messages by the two types of UEs are respectively described below.

Step 31: When the UE in the connected state power-saving mode wakes up, the layer 1 layer 2 control channel is monitored, and when the special identifier information of its own is captured, step 32 is performed;

Step 32: The UE reads the broadcast channel. Step 33: The UE determines whether the label value of the current main message block on the broadcast channel and the label value of the locally stored main message block are the same. If the two are the same, the UE will stop reading the broadcast channel. If the two are different, proceed to step 34.

Step 34: The UE reads the label value of other system message blocks in the main message block.

Step 35: The UE compares the label value of the other system message block with the corresponding label value of the other system message block stored locally. If the label value is different, the specific information is captured according to the scheduling information of the system message block provided in the main message block. System message block content.

2. The UE in the connected state in the non-power saving mode, the step of acquiring the system message is as follows: Step 41: The UE continuously monitors the layer 1 layer 2 control channel, and when the special identifier information belonging to itself is captured, step 42 is performed;

Step 42: The UE reads the broadcast channel.

Step 43, the UE determines whether the label value of the current main message block on the broadcast channel and the label value of the locally stored main message block are the same. If the two are the same, the UE will stop reading the broadcast channel. If the two are different, proceed to step 44;

Step 44: The UE reads the label value of other system message blocks in the main message block.

Step 45: The UE compares the label value of the other system message block with the locally stored corresponding label value. If the label value is different, the specific system message block content is captured according to the scheduling information of the system message block provided in the main message block. .

In the foregoing embodiment 2, when the system message changes, the network side sends the layer 1 layer 2 control signaling carrying the special identifier information to the UE through the layer 1 layer 2 control channel, where the special identifier is used to indicate that the system message changes. Therefore, the UE can learn that the system message has changed through the receiving layer 1 layer 2 control signaling, and the special identifier can be resolved, which avoids the trouble of requiring the cache change notification message in the prior art, and does not require inter-layer primitive interaction. .

Example 3:

Similar to the second embodiment, when the UE accesses the communication system, the network side uniquely assigns special identification information to the UE; that is, when the UE accesses the system, the network side allocates two UE identifiers to the UE, and one UE identifier is only used for accepting. Normal data; another special identifier is used to indicate that the system message has changed. This special identifier is also used to accept normal data. When the system message changes, the network side sends layer 1 layer 2 control signaling to the UE through the layer 1 layer 2 control channel. Layer 1 Layer 2 Control Channel Structure A specific implementation, such as shown in Figure 3, includes the following cells:

2) a label value cell of the primary message block, configured to carry label value information of the system message main message block; and the layer 1 layer 2 control signaling sent by the network side to the UE through the layer 1 layer 2 control channel includes at least: UE The special identification information and the tag value information of the current main message block. When the system message changes, the specific number and interval of sending the layer 1 control signaling of the layer may be preset.

The UE in the connected state power-saving mode obtains the system message as follows: Step 51: When the UE in the connected state power-saving mode wakes up, the layer 1 layer 2 control channel is intercepted, and when the special identifier belongs to itself, When the information is performed, step 52 is performed;

Step 52: The UE captures the tag value information of the main message block by using the layer 1 layer 2 control channel. Step 53: The UE determines whether the tag value of the captured main message block and the tag value of the locally stored main message block are the same, if the two are the same , the UE does not read the broadcast channel, if the two are different, continue to step 54; '

Step 54: The UE reads the broadcast channel; and captures the main message block and the tag value in the other system message block;

Step 55: The UE compares the label value of the other system message block with the corresponding label value of the other system message block stored locally. If the label value is different, the specific information is captured according to the scheduling information of the system message block provided in the main message block. System message block content.

The UE in the connected state in the non-electrical mode, the step of acquiring the system message is as follows: Step 61: The UE continuously monitors the layer 1 layer 2 control channel, and when the special identification information of the user is captured, step 62 is performed; Step 62: The UE captures the label value information of the main message block by using the layer 1 layer 2 control channel. Step 63: The UE determines whether the label value of the captured main message block and the label value of the locally stored main message block are the same, if the two are the same , the UE does not read the broadcast channel, if the two are different, continue to step 64;

Step 64: The UE reads the broadcast channel; and captures the main message block and the tag value of the other system message block;

Step 65: The UE compares the label value of the other system message block with the corresponding label value of the other system message block stored locally. If the label value is different, the specific information is captured according to the scheduling information of the system message block provided in the main message block. System message block content.

The foregoing embodiment 3 is similar to the second embodiment. When the system message changes, the network side sends the layer 1 layer 2 control signaling carrying the special identifier information to the UE through the layer 1 layer 2 control channel, where the special identifier is used to indicate the system message. A change has occurred. Therefore, the UE can learn that the system message has changed through the receiving layer 1 layer 2 control signaling, and the special identifier can be resolved, which avoids the trouble of requiring the cache change notification message in the prior art, and does not require inter-layer primitive interaction. .

Example 4:

When the system message changes, the network side sends the layer 1 layer 2 control signaling to the UE through the layer 1 layer 2 control channel, and carries the latest main message block tag value. Layer 1 Layer 2 Control Channel Structure A specific implementation, as shown in Figure 4, includes the following cells:

1) a UE identifier cell, configured to carry identifier information of the UE;

2) a tag value cell of the main message block, configured to carry tag value information of the system message main message block;

Then, the layer 1 layer 2 control signaling sent by the network side to the UE through the layer 1 layer 2 control channel includes at least: identifier information of the UE, label value information of the current main message block, and resource block assignment and modulation and coding mode information. When the system message changes, the specific number of times and the interval time for transmitting the layer 1 control signaling of the layer can be preset.

The UE side is divided into the UE in the connected state power saving mode and the connected state in the non-power saving mode. The two types of UEs are described below. The methods for obtaining the changed system messages by the two types of UEs are respectively described below.

1. The UE in the connected state power-saving mode, the step of acquiring the system message is: Step 71: When the UE in the connected state power-saving mode wakes up, the layer 1 layer 2 control channel is intercepted, and when the notification is notified to the owner of the host When the label value information of the message block is performed, step 72 is performed;

Step 72: The XJE determines whether the tag value of the captured current main message block and the tag value of the locally stored main message block are the same. If the two are the same, the UE does not read the broadcast channel. If the two are different, proceed to step 73.

Step 73: The UE reads the broadcast channel; and captures the main message block and the tag value in the other system message block;

Step 74: The UE compares the label value of the other system message block with the corresponding label value of the other system message block stored locally. If the label value is different, the specific information is captured according to the scheduling information of the system message block provided in the main message block. System message block content.

2. In the non-power-saving mode of the connected state, the step of obtaining the system message is: Step 81: The UE continuously monitors the layer 1 layer 2 control channel, and when the tag value information notified to the main message block of the UE is captured, the execution is performed. Step 82;

Step 82: The UE determines whether the tag value of the captured current main message block and the tag value of the locally stored main message block are the same. If the two are the same, the UE does not read the broadcast channel. If the two are different, proceed to step 83;

Step 83: The UE reads the broadcast channel; captures the main message block and the label value of the system message block;

Step 84: The UE compares the label value of the other system message block with the corresponding label value of the other system message block stored locally. If the label value is different, the specific information is captured according to the scheduling information of the system message block provided in the main message block. System message block content.

In the foregoing Embodiment 4, when the system message changes, the network side sends the layer 1 layer 2 control signaling to the UE through the layer 1 layer 2 control channel, and carries the latest main message block tag value; the UE compares the current main message block by comparing Whether the tag value and the tag value of the locally stored main message block are the same, thereby knowing Whether the system message has changed or not avoids the trouble of requiring a cache change notification message in the prior art, and does not require inter-layer primitive interaction.

Example 5

The channel structure and the execution flow of the embodiment 5 are the same as those of the embodiment 4, except that: in the embodiment 4, the layer 1 layer 2 control signaling is sent to the UE only when the system message changes; Regardless of whether the system message changes, the network side continuously or periodically transmits control signaling carrying the primary message block tag value on the layer 1 layer 2 control channel.

In the foregoing embodiment 5, the network side continuously or periodically sends control signaling carrying the primary message block tag value to the UE on the layer 1 layer 1 control channel; the UE compares the current primary message block tag value with the locally stored primary message. Whether the tag value of the message block is the same, so as to know whether the system message has changed, avoids the trouble of requiring the cache change notification message in the prior art, and does not require inter-layer primitive interaction.

Example 6:

In the embodiment 6, the network side periodically sends the control signaling carrying the value of the main message block label on the layer 1 layer 2 control channel, and the main feature is: the network side sends the first to the UE through the layer 1 layer 2 control channel period. The control signaling and the second control signaling; carrying the label value information of the primary message block in the first control signaling; and carrying the resource block assignment and the modulation and coding mode information in the second control signaling.

Corresponding to the first control signaling, a specific implementation of the layer 1 layer 2 control channel structure, as shown in FIG. 5A, includes the following cells:

1) a UE identifier cell, configured to carry identifier information of the UE;

2) a tag value cell of the main message block, used for carrying tag value information of the system message main message block; corresponding to the second control signaling, a structure of the layer 1 layer 2 control channel is embodied in FIG. 5B. , including the following cells:

1) a UE identifier cell, configured to carry identifier information of the UE;

Then, the network side transmits the first control signaling to the UE through the layer 1 layer 2 control channel of the first structure. The method includes at least: the identifier information of the UE and the label value information of the current main message block. The second control signaling sent by the network to the UE by using the layer 1 layer 2 control channel of the second structure includes: Resource block assignment and modulation and coding mode information.

The first control signaling and the second control signaling may be sent in time division multiplexing or frequency division multiplexing. In the sixth embodiment, the time division multiplexing mode is taken as an example. A time division multiplexing mode is shown in FIG. 5C, and the first one of N (N > 1 ) data frames is separated in the layer 1 layer 2 control signaling. The control signaling (ie, the first signaling) carrying the primary message block tag value information is sent in the subframe; the remaining subframes send the second control signaling. When N=l, it means that the primary message block tag value information is sent in the first subframe of each data frame, that is, the connection is sent every frame. Another time division multiplexing mode is shown in FIG. 5D. In each data frame of layer 1 layer 2 control signaling, a control message carrying the main message block tag value information is sent every interval N (for example, N < 20) subframes. The (ie, the first signaling), the remaining subframes send the second control signaling.

The UE side is divided into two types: the UE in the connected state power saving mode and the IJE in the connected state non-power saving mode. The methods for acquiring the changed system messages by the two types of UEs are respectively described below.

Step 91: When the UE in the connected state power-saving mode wakes up, the layer 1 layer 2 control channel is monitored, and when the label value information of the main message block notified to itself is captured, step 92 is performed;

Step 92: The UE determines whether the tag value of the captured current main message block and the tag value of the locally stored main message block are the same. If the two are the same, the UE does not read the broadcast channel. If the two are different, proceed to step 93;

Step 93: The UE reads the broadcast channel; and captures the main message block and the tag value in the other system message block;

Step 94: The UE compares the tag value of the other system message block with the corresponding tag value of the other system message block stored locally. If the tag value is different, the specific information is captured according to the scheduling information of the system message block provided in the main message block. System message block content.

2. The UE in the connected state in the non-power-saving mode, the step of acquiring the system message is: Step 101: The UE continuously listens to the layer 1 layer 2 control channel, and when the notification is notified to the host, When the tag value information of the block, step 102 is performed;

Step 102: The UE determines whether the tag value of the captured current main message block and the tag value of the locally stored main message block are the same. If the two are the same, the UE does not read the broadcast channel. If the two are different, proceed to step 103.

Step 103: The UE reads a broadcast channel; and captures a main message block and a label value thereof in relation to other system message blocks;

Step 104: The UE compares the label value of the other system message block with the corresponding label value of the other system message block stored locally. If the label value is different, the specific information is captured according to the scheduling information of the system message block provided in the main message block. System message block content.

In the foregoing embodiment 6, the network side sends the first control signaling and the second control signaling to the UE through the layer 1 layer 2 control channel period; the first control signaling carries the label value information of the primary message block; The control signaling carries the resource block assignment and the modulation and coding mode information; the first control signaling and the second control signaling may be sent by using time division multiplexing or frequency division multiplexing. The UE can compare whether the received tag value of the current main message block and the tag value of the locally stored main message block are the same, so as to know whether the system message has changed; avoiding the trouble of requiring the cache change notification message in the prior art. And there is no need for primitive interaction between layers.

According to the method for indicating a system message change provided by the foregoing embodiment, the present invention provides an apparatus embodiment for indicating a system message change. As shown in FIG. 6, a device 10 for indicating a system message change includes:

The signaling generating unit 101 generates layer 1 layer 2 control signaling, and carries indication information indicating that the system message changes and/or label value information of the system message main message block;

The signaling sending unit 102 sends the control signaling generated by the signaling generating unit to the user equipment UE through the layer 1 layer 2 control channel. '

The signaling generating unit 101 includes:

The first generating module 1011 is configured to: when the system message changes, generate layer 1 layer 2 control signaling that includes at least: UE identity information, common indication information, and resource block assignment and modulation and coding mode information; The network side and the entire UE pre-agreed to indicate that the system message has changed. Corresponding indication information;

The second generating module 1012 is configured to: when the system message changes, generate layer 1 layer 2 control signaling that includes: UE identification information, label value information of the main message block, and resource block assignment and modulation and coding mode information;

The third generation module 1013 is configured to periodically generate layer 1 layer 2 control signaling that includes at least: UE identification information, label value information of the main message block, and/or resource block assignment and modulation and coding mode information;

The fourth generation module 1014 is configured to: when the system message changes, generate layer 1 layer 2 control signaling that includes: special identifier information, resource block assignment, and modulation and coding mode information; and the special identifier information is UE access communication. In the system, the network side is the only indication information indicating that the system message is changed by the UE;

The fifth generation module 1015 is configured to: when the system message changes, generate layer 1 layer 2 control signaling that includes: special identifier information and label value information of the main message block; the special identifier information is when the UE accesses the communication system And the network side is correspondingly indicated information indicating that the system message is changed by the UE; one of the foregoing first to fifth generation modules.

The present invention further provides an embodiment of a user equipment. As shown in FIG. 7, a user equipment 20 includes: a monitoring and capturing unit 201, configured to monitor a Layer 1 control channel when the user equipment UE is in a connected state, and capture Indicates that the system message has changed and/or the tag value information of the system message main message block;

The system message obtaining unit 202 is configured to: when it is determined that the current main message block tag value of the network side and the tag value of the locally stored main message block are different according to the captured indication information and/or the tag value information of the main message block, read The broadcast channel compares the tag values of other system message blocks in the main message block, and captures the content of the corresponding system message block whose tag value has changed according to the scheduling information of the system message block provided in the main message block.

The snoop capture unit 201 includes:

The first capturing module 2011 is configured to: when the UE is in the connected state, the monitoring layer 1 layer 2 controls the channel, and captures indication information indicating that the system message changes; and/or

The second capturing module 2012 is configured to: when the UE is in the connected state, the monitoring layer 1 layer 2 controls Channel, captures the tag value information of the system message main message block.

In summary, with the present invention, the network side sends control signaling to the UE through the layer 1 layer 2 control channel, and carries the indication information indicating that the system message changes and/or the tag value information of the system message main message block; The Έ listening layer 1 layer 2 control channel captures indication information indicating that the system message changes and/or label value information of the system message main message block; and the captured indication information and/or the label value information of the main message block When it is determined that the current main message block tag value of the network side and the tag value of the locally stored main message block are different, the broadcast channel is read, the tag values of other system message blocks in the main message block are compared, and the main message is compared. The scheduling information of the system message block provided in the block captures the contents of the corresponding system message block whose tag value has changed. Therefore, the UE obtains a process list of the system message change indication, avoids the trouble of requiring buffer in the prior art, and does not require inter-layer primitive interaction.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of the inventions

Claims

. Rights request

A method for indicating a change in a system message, comprising:

The network side sends control signaling to the user equipment UE through the layer 1 layer 2 control channel, and the control signal carries indication information indicating that the system message changes and/or label value information of the system message main message block.

The method according to claim 1, wherein the indication information is public indication information indicating that the system message is changed in advance by the network side and the entire UE, and the sending control signaling is sent to the UE, specifically:

When the system message changes, the network side sends at least the UE identifier information, the public indication information, the resource block assignment, and the modulation and coding mode information to the UE through the layer 1 layer control channel; or when the system message changes, the network side Transmitting at least the UE identification information, the label value information of the main message block, the resource block assignment, and the modulation and coding mode information to the UE through the layer 1 layer 2 control channel; or

The network side sends the UE layer identification information or the label value information of the main message block to the UE through the layer 1 layer 2 control channel period; or

The network side sends the UE layer identification information, the resource block assignment, and the modulation and coding mode information through the layer 1 layer 2 control channel period or continuously to the UE; or

The network side sends the UE layer identification information, the label value information of the main message block, the source block assignment, and the modulation and coding mode information to the UE through the layer 1 layer 2 control channel period.

The method according to claim 2, wherein the network side sends the first control signaling and the second control signaling to the UE by using the layer 1 layer 2 control channel period; the first control signaling includes at least: The UE identification information and the label value information of the main message block; the second control signaling includes at least: UE identification information, resource block assignment, and modulation and coding mode information.

4. The method according to claim 3, wherein the first control signaling and the second control signaling are transmitted in a time division multiplexing or a frequency division multiplexing manner.

The method according to claim 1, wherein the indication information is a UE accessing In the case of the information system, the network side is the special identifier information that is uniquely allocated by the UE; the sending control signaling to the UE includes:

The network side sends at least the special identification information and the resource block assignment and the modulation and coding mode information to the UE through the layer 1 layer 2 control channel; or

The network side transmits at least the special identification information and the tag value information of the main message block through the layer 1 layer 2 control channel.

6. A method for obtaining a system message, comprising:

Comparing the tag value of the current main message block on the network side with the tag value of the locally stored main message block;

Reading a tag value of another system message block in the main message block on the broadcast channel when the tag value of the current primary message block is different from the tag value of the locally stored primary message block;

The method according to claim 6, wherein, when the UE captures the indication information from the layer 1 layer 2 control channel, the indication information is pre-agreed by the network side and the entire UE. Before the step of comparing the tag value of the current main message block of the network side with the tag value of the locally stored main message block, the method further includes:

The UE reads the label value of the current main message block on the broadcast channel;

After the step of comparing the label value of the current main message block of the network side with the label value of the locally stored main message block, the method further includes: if the label value of the current main message block of the network side and the main message block stored locally If the tag values are the same, the reading of the broadcast channel is stopped.

The method according to claim 6, wherein when the UE captures the tag value information of the system message main message block from the layer 1 layer 2 control channel, the network side current main message is used. The tag value of the block is compared with the tag value of the locally stored main message block, which is specifically:

The UE will capture the tag value of the current primary message block and the tag value of the locally stored primary message block. Compare.

The method according to claim 6, wherein the indication information is captured by the UE on a layer 1 layer 2 control channel, where the indication information is that the UE itself accesses the communication system when the network side When the unique identifier information is uniquely assigned, and the label value information of the primary message block is not sent on the layer 1 layer 2 control channel, the label value of the current main message block on the network side is compared with the locally stored main message block. Before the step of comparing the tag values, the steps include:

The method according to claim 6, wherein when the UE captures the indication information and the tag value information of the main message block from the layer 1 layer 2 control channel, the network side The tag value of the current main message block is compared with the tag value of the locally stored main message block, which is specifically:

The UE compares the tag value of the captured current primary message block with the tag value of the locally stored primary message block.

11. A device for indicating a change in a system message, comprising:

The device according to claim 11, wherein the signaling generating unit comprises one of the following generating modules or any combination thereof:

a first generation module, configured to generate at least: layer 1 layer 2 control signaling of the UE identifier information, the common indication information, and the resource block assignment and the modulation and coding mode information when the system message changes; the public indication information is a network side Corresponding indication information indicating that the system message changes in advance with all the UEs;

a second generating module, configured to generate at least: when the system message changes: UE identification information, The layer value information of the message block and the layer 1 layer 2 control signaling of the resource block assignment and the modulation and coding mode information; the third generation module, configured to periodically generate at least: the UE identifier information, the label value information of the main message block, and/or Or layer 1 layer 2 control signaling of resource block assignment and modulation coding mode information;

And a fourth generation module, configured to: when the system message changes, generate layer 1 layer 2 control signaling that includes: special identifier information, resource block assignment, and modulation and coding mode information; and the special identifier information is that the UE accesses the communication system. When the network side is uniquely assigned to the UE, the indication information indicating that the system message changes;

a fifth generation module, configured to generate, when the system message changes, a layer 1 layer 2 control signaling that includes at least: special identifier information and label value information of the main message block; the special identifier information is when the UE accesses the communication system, The network side is correspondingly indicated information indicating that the system message is changed by the UE.

13. A user equipment, comprising:

a monitoring and capturing unit, configured to: when the user equipment UE is in a connected state, monitor layer 1 layer 2 control channel, and capture indication information indicating that the system message changes and/or label value information of the system message main message block;

The user equipment according to claim 13, wherein the interception capture unit comprises:

a first acquiring module, configured to: when the UE is in a connected state, intercept the layer 1 control channel, and capture indication information indicating that the system message changes; and/or

The second capturing module is configured to: when the UE is in the connected state, listen to the layer 1 layer 2 control channel, and capture the label value information of the system message main message block.