WO2007128223A1 - Procédé et appareil d'envoi/réception d'information de gestion du système - Google Patents

Procédé et appareil d'envoi/réception d'information de gestion du système Download PDF

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Publication number
WO2007128223A1
WO2007128223A1 PCT/CN2007/001430 CN2007001430W WO2007128223A1 WO 2007128223 A1 WO2007128223 A1 WO 2007128223A1 CN 2007001430 W CN2007001430 W CN 2007001430W WO 2007128223 A1 WO2007128223 A1 WO 2007128223A1
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WIPO (PCT)
Prior art keywords
system control
control message
channel
message
level
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PCT/CN2007/001430
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English (en)
Chinese (zh)
Inventor
Zhihong Lu
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Huawei Technologies Co., Ltd.
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007128223A1 publication Critical patent/WO2007128223A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a system control message sending and receiving method and apparatus.
  • the UE In a mobile communication system, the UE (User Equipment) has two basic modes of operation: idle mode and connected mode. The UE stays in the idle mode after power-on, and identifies the non-access stratum such as IMSI (International Mobile Subscriber Identity), TMSI (Temporary User Identity) or P-TMSI (Packet Temporary Mobile Subscriber Identity). And other signs to distinguish.
  • the UTRAN Terrestrial Radio Access Network
  • the UTRAN Temporrial Radio Access Network
  • R C Radio Resource Control
  • the UE transits from the idle mode to the connected mode.
  • the UE In the RRC connected mode, the UE has four states, which reflect the level of UE connection and which transport channel the UE can use. When the RRC connection is released, the UE transitions from the connected mode to the idle mode.
  • R C Radio Resource Control
  • the state of the UE is divided into four types: CELL_DCH state, CELL_FACH state, CELL_PCH state, URA-PCH state. These states define the physical channel type, measurement and mobility management tasks used by the UE, and the actions when a state transition occurs.
  • CELL-DCH state the system allocates a dedicated channel to the UE for large-traffic data transmission.
  • the activity of the UE decreases and the amount of transmitted data decreases significantly, the system can change the state of the UE to CELL-FACH. status.
  • the UE can only communicate with the system using the common channel, the uplink uses the RACH (random access channel), and the downlink uses the FACH (forward access channel), which is suitable for a small amount of data transmission. If the UE's activity is reduced again, the system can change the state of the UE to CELL_PCH. In this case, the UE can only listen to the paging channel, and cannot perform any data transmission.
  • the least active state is the URA-PCH state, in which the UE can only listen to the paging channel.
  • URA_PCH The difference between the state and the CELL_PCH state is that when the UE is in the CELLJPCH state, if the current serving cell changes, it needs to report to the UTRAN once, and in the URA-PCH state, it only needs to be the URA (UTRAN registration area). When the area changes, it is necessary to report.
  • the size of the operator's custom URA area usually contains several cells.
  • the system control message is sent on the BCH (Broadcast Channel) by means of MIB+SIB (main message block + system message block), and the scheduling information of the SIB is included in the MIB or the scheduling block, and the MIB includes both The tag value of the SIB.
  • the BCH usually adopts a fixed lower rate and a fixed transmission format, which makes the transmission efficiency of the BCH low, and The higher transmit power of the BCH affects the downlink capacity of the system to some extent.
  • the rate of the BCH is low, the UE reads the BCH for a long time and increases the power consumption of the UE.
  • the UE needs to perform cross-frequency or cross-system measurement in the GAP (gap), it needs to read The system control message of other cells is taken, which requires the UE to shorten the reading time of the system control message.
  • Idle (idle state), CELL_FACH state, CELL_PCH state, URA_PCH state, when entering a new cell, read the MIB, obtain the SIB tag value, if the SIB tag value and the UE in the MIB If the tag value in the stored VALUE_TAG is different, the tag is stored and the SIB is read.
  • FDD Frequency Division Duplex
  • CELL-DCH states only certain UEs that can simultaneously receive S-CCPCH (Common Control Physical Channel) and DCH (Dedicated Channel) can receive changed system control messages.
  • the changed system control message is a system control message change indication sent by the FACH (Forward Access Channel), and the UE reads the system control message from the BCH after receiving the indication.
  • FACH Forward Access Channel
  • LTE Long Term Evolution
  • the purpose of LTE is to provide a way to reduce latency, improve user data rates, and improve System capacity and low cost network coverage.
  • the bearer network is an IP bearer.
  • the UE has only two states, Idle and Active, and there is no FACH channel. Therefore, according to the prior art, the UE will not be able to normally receive the changed system control message in the Active state.
  • a further aspect of the embodiments of the present invention provides a system control message sending apparatus, which can notify all UEs in the system in time after the system changes, thereby improving the working efficiency of the system.
  • a further aspect of the embodiments of the present invention provides a system control message receiving apparatus, so that the UE can receive the changed system control message in a timely and accurate manner under any state, and ensure that the UE communicates with the system.
  • a system control message sending method includes the following steps:
  • the network side scheduling channel resource sends the changed system control message to the user equipment UE;
  • the network side notifies the UE to read the system control message it sends by sending a system control message change indication.
  • a system control message receiving method includes the following steps:
  • the location where the system control message is located is obtained according to the system broadcast message or the system control message change indication information;
  • the UE reads the location where the system control message is located, and acquires a system control message.
  • a system control message sending device includes:
  • a system control message extraction module configured to acquire the changed system control message
  • a resource scheduling module configured to allocate, by the network side, a channel resource required for sending a message to the user equipment UE;
  • a change indication information generating module configured to be connected to the system control message extraction module, configured to generate system control message change indication information after the system control message changes;
  • the message sending module is respectively connected to the system control message extracting module, the change indication information generating module, and the resource scheduling module, and configured to: after the system control message changes, the changed system control message and the generated system control message
  • the change indication information is sent to the UE by the resource scheduling module for the channel resource allocated by the resource scheduling module.
  • a system control message receiving device is disposed in the user equipment UE, and includes:
  • a change indication information obtaining module configured to acquire system control message change indication information according to information received by the user equipment UE;
  • the system control message location obtaining module is connected to the change indication information acquiring module, and configured to acquire a location where the system control message is located according to the system control message change indication information;
  • the system control message extracting block is connected to the system control message location obtaining module, and is configured to extract a system control message according to the location where the system control message is located.
  • the embodiment of the present invention sends the changed system control message to the user equipment UE in the idle state or the activated state by using the network side scheduling channel resource. And sending the system control message change indication, notifying the UE in the idle state or the active state to read the system control message sent by the UE, and ensuring that the changed system control message is notified to the UEs in all states in time.
  • FIG. 1 is a flowchart of an implementation of a system control message sending method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of an implementation of a system control message receiving method according to an embodiment of the present invention
  • FIG. 4 is a schematic block diagram of a system control message transmitting apparatus according to an embodiment of the present invention
  • FIG. 5 is a schematic block diagram of a system control message receiving apparatus according to an embodiment of the present invention.
  • the network side schedules the channel resource, sends the changed system control message to the user equipment UE (idle state or active state), and sends the system control message change indication to notify the UE to read the transmission.
  • the system control message notifies the changed system control message to all states of the UE in time.
  • the system broadcast message or the system control may be performed.
  • the message change indication information acquires a location where the system control message is located, so that the UE can obtain the changed system control message according to the location information.
  • FIG. 1 shows an implementation process of a system control message sending method according to an embodiment of the present invention, which includes the following steps:
  • Step 101 After the system control message changes, the network side scheduling channel resource sends the changed system control message to the UE.
  • the network side scheduling channel resource sends the changed system control message to the idle state or the activated state UE after the system control message changes, whether the UE is in the idle state or the UE in the activated state.
  • the specific channel resources, transmission methods, and transmission contents used are different. The process of transmitting system control messages in different situations will be described in detail later.
  • Step 102 The network side notifies the UE to read the system control message sent by the system by sending a system control message change indication.
  • the network side needs to schedule the channel resource to send the changed system control message to the UE in the idle state or the activated state. This will be explained in detail below.
  • the embodiment of the present invention classifies the system control messages in advance, and divides the system control messages into two categories: a first level system control message and a second level system control message.
  • the specific division can be used but not limited to the following two ways:
  • the system control message is divided into: a system level system control message, that is, a second level system control message, and a cell level system control message, that is, a first level system control message.
  • the system level system control message is shared by all the cells in the system, for example, the system message blocks SIB1, SIB2, SIB13, etc.; the cell level system control message is valid only for the local cell, for example, the system message block SIB3, SIB4 Etc., these messages can be different in different cells.
  • there may be different classification methods for example, dividing some system level system control messages into cell level for transmission.
  • the first part is the first level system control message.
  • the system control message including cell selection and reselection related system control messages and cell access requirements;
  • the second part, the second level system control message includes: all system control messages except the first level system control message.
  • the first level system control message includes scheduling information of physical layer parameters (eg, cell bandwidth, etc.) and second level control information;
  • the second level system control message includes system control other than the first level system control message Information such as: neighbor information, timer information, channel pre-configuration information, etc.
  • the first level system control message and the second level system control message are respectively sent on the broadcast channel and other channels than the other broadcast channel, such as a multicast channel, a downlink shared channel, a dedicated channel, etc., to reduce The load of the small broadcast channel, the transmission power of the P low broadcast channel, increases the downlink capacity of the system.
  • the embodiment of the present invention adds a switch indication parameter to the scheduling information included in the main message block of the system broadcast message, and the parameter is "on", indicating that the second level system control message is other than the broadcast channel.
  • the channel is sent; the parameter is "off,” indicating that the second level of the system control message is also sent through the broadcast channel, so that when the UE receives the system control message, the second level system control message can be learned according to the parameter.
  • the way to send get the required system control message.
  • the network side After the network side sends the system control message to the UE, it also needs to notify the UE that the system control message has changed. For the idle state UE, the network side sends a paging message to the UE through the paging channel, and the paging message includes system control. Message change indication information.
  • the embodiment of the present invention sends the changed system control message to the UE through the downlink shared control channel. And inform the UE to read the message. At this time, it is not necessary to classify the system control message, but all the changed system control messages are sent to the UE through the downlink shared control channel. For example, the following implementations are possible:
  • the network side schedules resources that are valid for all UEs on the downlink shared channel, and sends the changed system control message to all UEs in the active state through the resource; and changes the system control message change indication information through the control channel of the downlink shared channel. All UEs sent to the active state.
  • the network side schedules resources valid for all UEs on the downlink shared channel, and passes the resources. Transmitting the changed system control message to all UEs in the active state; then transmitting the system control message change indication information to the single UE in the active state through the control channel of the downlink shared channel.
  • the network side schedules resources valid for a single UE on the downlink shared channel, and sends the changed system control message to the UE in the activated state by using the resource; and then changes the system control message by using the control channel of the downlink shared channel. Information is sent to the UE.
  • the network side reserves a system control message sending resource on the downlink shared channel, and sends the changed system control message to all UEs in the active state or a single UE or a part of the UE through the reserved resource;
  • the control channel transmits system control message change indication information to all UEs or to a single UE or a partial UE.
  • the network side sends the location information of the changed system control message to the UE, while transmitting the system control message change indication information, for the UE in the idle state or the UE in the active state.
  • FIG. 2 shows the implementation process thereof, including the following steps:
  • Step 201 When the user equipment UE selects a new cell, or when the UE receives the system control message change indication information sent by the network side, the location where the system control message is located is obtained according to the system broadcast message or the system control message change indication information.
  • the network side needs to schedule the channel resource to the idle state or activate after the system control message changes, for the UE in the idle state or the UE in the active state.
  • the UE in the state sends the changed system control message, and notifies the UE to read the system control message by sending a system control message change indication. Therefore, for the UE, it is first necessary to obtain the location where the system control message is obtained according to the system control message change indication information. Since the UE selects a new cell, it needs to read the system information of the new cell. Therefore, the UE in this state only needs to read the system broadcast message, and learns the location of the system control message according to the system broadcast message.
  • Step 202 The UE reads the location where the system control message is located, and acquires a system control message.
  • the UE After knowing the location information of the system control message, the UE can extract the content of the system control message from the location where the system control message is located on the corresponding channel.
  • the UE When the UE is in an idle state, it receives a system paging message on the paging channel, and includes a tag value information of the MIB (main message block) in the paging message, and includes a tag value in the MIB. After receiving the paging message, the UE needs to determine whether the MIB has a changed system control message according to the message, and then determines, according to the label value included in the MIB, which system control messages have changed, that is, the label value is The system controls the message change indication information.
  • MIB main message block
  • the UE reads the tag value in the MIB, compares whether the tag value and the tag stored in the variable VALUE_TAG are the same. If they are the same, it indicates that the system control message has not changed, and no need to read the system broadcast message at this time; if different or UE There is no such IE (entity) storage, then the tag value in the MIB needs to be stored into the variable VALUE_TAG, and then the system broadcast message is read, according to the scheduling information stored in the MIB and the scheduling block in the system broadcast message, and according to The scheduling information determines where the system control message is located. Then, the corresponding system control message is read to the corresponding location.
  • IE entity
  • a UE which may be an idle state UE or an active state UE
  • the system broadcast message is read, and the information in the MIB of the new cell is obtained. If the label value of the SIB (system message block) in the MIB is different from the stored label value, each system is obtained according to the scheduling information in the MIB and the scheduling block. Control where the message is located. Then, read the corresponding system control message to the corresponding location.
  • SIB system message block
  • FIG. 3 shows a process of acquiring a system control message when a UE selects a new cell in the embodiment of the present invention:
  • Step 301 The UE captures a BCH (Broadcast Channel) and receives the MIB of the new cell on the BCH.
  • Step 302 Obtain a label value in the MIB.
  • Step 303 Compare the tag value in the MIB with the tag value stored in the variable VALUE_TAG by the UE, and determine whether the two values are the same. If they are the same, proceed to step 304; if different or there is no such IE storage in the UE, proceed to step 305.
  • Step 304 The UE uses the stored system control message, that is, the system control message is not changed, and the UE can still use the various system control messages originally stored.
  • Step 305 The UE stores the tag value to the variable VALUE_TAG.
  • Step 306 Read and store the scheduling information in the MIB and the scheduling block.
  • Step 307 Determine whether the switch indication parameter in the MIB scheduling information is "on”. If yes, go to step 308; otherwise, go to step 309.
  • the network control message can be divided into: a second level system control message and a first level system control message, and the two types of messages are Transmit on different channels to reduce the burden on the broadcast channel.
  • a switch indication parameter may be added to the scheduling information contained in the main message block of the system broadcast message, and a different value of the parameter may be used to indicate whether a system control message is sent on another channel. For example, when the switch indicates that the parameter is "on”, it indicates that the second level system control message is sent through other channels than the broadcast channel; when the switch indicates that the parameter is "off”, it indicates that the system control message only passes Broadcast channel transmission. Of course, it can be reversed.
  • the UE when reading the scheduling information in the MIB of the broadcast message, the UE needs to determine the value of the switch indication parameter to determine whether it is necessary to read the system control message on other channels. Which channel is used by the network side to send system-level system control messages is also required to notify the UE through the scheduling information in the MIB.
  • Step 308 The UE acquires a channel where the system control message is located according to the scheduling information in the MIB.
  • Step 309 Obtain a location of the system control message in the scheduling information.
  • Step 310 The location of the system control message in the scheduling information to the corresponding location on the corresponding channel reads the system control message.
  • the UE may skip the reading of the message block and do not need to monitor the change of the message block.
  • the network side sends the changed system control message to the UE through the downlink shared control channel, and notifies the UE to read the message.
  • the network control sends the changed system control message to all UEs in the active state or a single UE or a part of the UE through the downlink shared channel.
  • the system control message change indication information is sent to all UEs through the control channel of the downlink shared channel. Or a single UE or part of a UE.
  • the control channel of the downlink shared channel needs to be read, and the system control message is acquired.
  • the change indication information and the location of the system control message and then read the downlink shared channel, and obtain according to the location of the obtained system control message System control message.
  • FIG. 4 is a block diagram showing the principle of a system control message transmitting apparatus according to an embodiment of the present invention:
  • the device includes: a system control message extraction module S41, a change indication information generation module S42, a resource scheduling module S43, and a transmission module S44. among them,
  • the system control message extraction module S41 is configured to acquire the changed system control message; the resource scheduling module S43 is configured to allocate, to the network side, channel resources required for sending a message to the user equipment UE; the change indication information generating module S42 and the system control message extraction module S41 is connected to generate system control message change indication information after the system control message changes; the sending module S44 is respectively connected to the system control message extraction module S41, the change indication information generating module S42, and the resource scheduling module S43, and is used in the system. After the control message is changed, the changed system control message and the generated system control message change indication information are respectively sent to the UE by the resource scheduling module S43 for the allocated channel resource.
  • a classification module S45 may be disposed between the system control message extraction module S41 and the resource scheduling module S43 for classifying system control messages, and dividing the system control message into: first level system control The message and the second level system control message enable the resource scheduling module S43 to allocate the required channel resources according to the classification.
  • the classification module S45 may divide the system control message into a system level control message (i.e., a first level system control message) at the cell level and a system control message (i.e., a second level system control message) at the system level.
  • the system level control message at the cell level is valid only for the local cell; the system level system control message is shared for different cells in the system.
  • the classification module S45 may divide the system control message into two parts, and a part (ie, the first level system control message) includes a system control message related to cell selection and reselection and a system control message required for cell access; another part ( That is, the second level system control message) includes: all system control messages except the first level system control message.
  • the first level system control message includes physical layer parameters (eg, cell bandwidth, etc.) and scheduling information of the second level control information; the second level system control message includes system control other than the first level system control message Information such as: neighbor information, timer information, channel pre-configuration information, etc.
  • the resource scheduling module S43 can allocate different channel resources for different types of system control messages according to the classification.
  • the resource scheduling module allocates other channel resources except the broadcast channel for the second level system control message, and allocates the broadcast channel resource for the first level system control message;
  • the resource scheduling module S43 allocates a paging channel resource thereto. That is, when the UE is in the idle state, the second level system control message occupies other channel resources except the broadcast channel, and the first level system control message occupies the broadcast channel resource; the system control message change indication information passes the paging.
  • the channel resources are sent to the UE.
  • the resource scheduling module S43 allocates the downlink shared channel resource, that is, when the UE is in the active state, the system control message is sent to the UE through the downlink shared channel resource.
  • FIG. 5 there is shown a block diagram of a system control message receiving apparatus in accordance with an embodiment of the present invention:
  • the device is located in the UE, and includes: a change indication information acquiring module S51, a system control message position obtaining module S52, and a system control message extracting module S53 connected in sequence.
  • the change indication information obtaining module S51 is configured to obtain the system control message change indication information according to the information received by the user equipment UE.
  • the system control message location obtaining module S52 is configured to acquire the system control message according to the system control message change indication information.
  • the system control message extraction module S53 is configured to extract a system control message at a location where the system control message is located.
  • the change indication information acquiring module S51 When the UE is in an idle state, the change indication information acquiring module S51 reads the paging channel, acquires the system control message change indication information, and reads the broadcast channel according to the information, and acquires the location where the system control message is located; when the UE selects a new one, When the cell is in the cell, the change indication information acquiring module S51 directly reads the broadcast channel to obtain the location where the system control message is located; when the UE is in the active state, the change indication information acquiring module S51 reads the control channel of the downlink shared channel, and acquires the system control message. Where it is.
  • the embodiment of the present invention sends the changed system to the user equipment UE in the idle state or the activated state by scheduling the channel resource on the network side.
  • the control message is sent to the UE in the idle state or the active state to read the system control message sent by the UE by sending the system control message change indication, so as to ensure that the changed system control message is notified to the UEs in all states in time.
  • the idle state UE by classifying the system control message and transmitting separately through the broadcast channel and other channels, the burden of the broadcast channel is effectively reduced, and the transmission power of the broadcast channel is reduced, thereby increasing the system. Downstream capacity; and transmitting system level system control messages on another channel can achieve the gain obtained by macro diversity, which can further increase the downlink capacity of the system.
  • the system may broadcast the message or the system control message.
  • the change indication information acquires the location where the system control message is located, so that the UE can obtain the changed system control message according to the location information, and the normal operation of the UE is ensured.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé d'envoi/réception d'information de gestion du système. En cas de modification de l'information de gestion du système, le côté réseau planifie des ressources canal afin d'envoyer à l'équipement utilisateur (UE) l'information modifiée de gestion du système modifiée. Pour informer l'équipement utilisateur qu'il a à lire l'information modifiée de gestion du système, le côté réseau envoie une indication de modification de l'information de gestion du système. Selon le mode d'envoi, quand l'équipement utilisateur sélectionne une nouvelle cellule, ou quand il reçoit l'information indiquant les changements de l'information de gestion du système envoyée par le côté réseau, l'équipement utilisateur acquiert la position où l'information de gestion du système localisé par l'information de radiodiffusion du système ou l'information donnant ordre de modifier l'information de gestion du système, puis lit l'information concernant cette position pour obtenir l'information de gestion du système. L'invention concerne également un appareil pour l'envoi/réception d'information de gestion du système. Les équipements utilisateur à l'état au repos ou à l'état actif peuvent effectivement recevoir l'information modifiée de gestion du système.
PCT/CN2007/001430 2006-04-30 2007-04-28 Procédé et appareil d'envoi/réception d'information de gestion du système WO2007128223A1 (fr)

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CN200610078684.2 2006-04-30
CN200610078684 2006-04-30
CN2006100991067A CN101115281B (zh) 2006-04-30 2006-07-27 系统控制消息发送、接收方法及装置
CN200610099106.7 2006-07-27

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