WO2013029553A1

WO2013029553A1 - Method and apparatus for group call

Info

Publication number: WO2013029553A1
Application number: PCT/CN2012/080789
Authority: WO
Inventors: 胡振兴; 李龠
Original assignee: 华为技术有限公司
Priority date: 2011-08-30
Filing date: 2012-08-30
Publication date: 2013-03-07
Also published as: CN102958002A; CN102958002B

Abstract

Disclosed in the embodiments of the present invention are a method and an apparatus for a group call. The method comprises the following steps: configuring a group context for a User Equipment (UE) (110), sending a full-band uplink channel quality sounding message to the UE (120); receiving a UE response carrying a full-band uplink channel quality sounding signal (130); according to the response carrying the full-band uplink channel quality sounding signal, updating the group context which includes group call parameters for receiving the group call message and sending a response (140); sending a message carrying group parameters to the UE (150); according to the updated group context, sending a group call message to the UE (160); receiving a response sent by the UE according to the group call message and parameters to the group call message (170). According to the solution, the signaling interaction is significantly saved, and the cost is greatly reduced.

Description

The present invention claims the priority of the Chinese patent application filed on August 30, 2011, the Chinese Patent Office, the application No. 201110252366.4, and the invention entitled "Group Calling Method and Equipment", the entire contents of which are incorporated by reference. Combined in this application. TECHNICAL FIELD The present invention relates to the field of wireless communication technologies, and in particular, to a method and a device for group call.

BACKGROUND OF THE INVENTION The Internet of Things is also called M2M, which is Machine to Machine (Machine to Man, Man to Machine, Machine to Mobile). The purpose is to connect all items to the Internet through information sensing devices. Intelligent identification and management. Combined with the Internet, they enable remote sensing and control of all items, resulting in a more intelligent production and living system.

With the development of technology, the number of M2M devices will become very large. These devices will be closely integrated with wireless communication technologies and obtain data through wireless connections or report data to the control center. Due to random or periodic reporting data, it has a great impact on the network, and even causes network congestion or even paralysis.

In the application scenario of the M2M, the application terminal devices, such as the wireless water meter and the electric meter, have low mobility, and generally require all terminal devices to periodically report data. For this application requirement, the current communication system generally performs corresponding operations one by one. In this way, each terminal device performs a complete signaling process similar to the current mobile terminal, and transmits data through scheduling. Each time the number of terminal devices is large, the signaling interaction is also very large. Large, and even lead to signaling overload, and this homogenization operation is undoubtedly a big waste of system resources. SUMMARY OF THE INVENTION The embodiments of the present invention provide a method and a device for group call, which can solve the problem that a large number of signaling interactions are caused when a large-scale M2M device is reported periodically.

In one aspect, a method for group call is provided, including: configuring a group context for a user equipment; transmitting a message of a full-band uplink channel quality sounding to the user equipment; and receiving a full-band uplink channel quantity that is sent by the user equipment a response of the sounding signal, the response is sent by the user equipment according to the message of the full-band uplink channel quality detection; and updating the group context according to the response of the full-band uplink channel quality sounding signal, the updating The group context includes a group call parameter, the group call parameter is configured to receive a group call message and send a response; send a message carrying the group call parameter to the user equipment; and send the message to the user equipment according to the updated group context Sending a group call message; receiving a response of the group call message sent by the user equipment according to the group call message and the group call parameter.

In another aspect, a method for group call is provided, including: receiving a message of a full-band uplink channel quality sounding sent by a base station; and transmitting, by using the message of the full-band uplink channel quality sounding, a full-band uplink channel to the base station a response of the quality detection signal; receiving a message carrying the group call parameter sent by the base station, the group call parameter is used to receive the group call message and send a response; storing the group call parameter, and remaining in the idle state And receiving, according to the stored group call parameter, a group call message sent by the base station, and sending a response of the group call message to the base station.

On the other hand, a device for providing a group call includes: a configuration module, configured to configure a group context for the user equipment; a transceiver module, configured to send a message of the full-band uplink channel quality detection to the user equipment; Receiving, by the user equipment, a response that carries a full-band uplink channel quality sounding signal, where the response is sent by the user equipment according to the message of the full-band uplink channel quality detection; and the processing module is configured to use, according to the transceiver module Receiving the response of the full-band uplink channel quality sounding signal, updating the group context configured by the configuration module, the updated group context includes a group call parameter, and the group call parameter is used to receive the group call message and send the response The transceiver module is configured to send the message of the group call parameter to the user equipment, where the group call parameter is included in the group context updated by the processing module, and the transceiver module is configured to The group context updated by the processing module sends a group call to the user equipment The transceiver module is configured to receive a response of the group call message sent by the user equipment according to the group call message and the group call parameter.

On the other hand, a device for providing a group call includes: a transceiver module, configured to receive a message that the base station sends a full-band uplink channel quality probe, and send the bearer to the base station according to the message of the full-band uplink channel quality detection. a response of the full-band uplink channel quality sounding signal; the transceiver module is configured to receive a message that carries the group call parameter sent by the base station, where the group call parameter is used to receive the group call message and send a response, where the group call parameter Included in the group context updated by the base station; a storage module, configured to store a group call parameter received by the transceiver module, and still maintain the group call parameter when in an idle state; The group call parameter stored by the storage module receives a group call message sent by the base station, and sends a response of the group call message to the base station.

The embodiment of the present invention can perform initial MCS (Modulation Coding Scheme) selection by configuring full-band uplink channel quality sounding according to the low mobility of the user equipment, and perform static according to the MC S selected by all user equipments. The RB (Radio Bearer) grouping and configuring the group context, and the user equipment still saves the group context after being transferred to the IDLE state, and then sequentially connected, so that the user equipment receives the report request in order, Data transmission is performed according to the static configuration, so that the RB configuration and reconfiguration are not required, and the PDCCH (physical downlink control channel) scheduling process is not required, which greatly saves signaling interaction, and the base station (eNB) can pass The way the group context is maintained is much less expensive than maintaining a context for each user device. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only the present drawings. Some embodiments of the invention may be obtained by those of ordinary skill in the art from the drawings without departing from the scope of the invention.

1 is a flow diagram of a method 100 of group calling in accordance with an embodiment of the present invention.

2 is a flow diagram of another method 200 of group call in accordance with an embodiment of the present invention.

3 is a timing diagram of a method of group call in accordance with an embodiment of the present invention.

4 is a block diagram of an apparatus for group call in accordance with an embodiment of the present invention. Figure 5 is a block diagram of an apparatus for group call in accordance with another embodiment of the present invention.

6 is a block diagram of another device for group call in accordance with an embodiment of the present invention.

7 is a block diagram of another device for group call in accordance with another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The technical solution of the present invention can be applied to various communication systems, such as: Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE, Long Term Evolution) and so on.

A user equipment (UE, User Equipment), which may also be called a mobile terminal (Mobile Terminal), a mobile user equipment, or the like, may communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network). The user equipment may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket-sized, handheld, built-in or in-vehicle, or It is a low mobility machine type communication (MTC) terminal device that exchanges language and/or data with a radio access network.

The base station may be a base station (NodeB) in the UMTS, or may be an evolved base station (eNB or e-NodeB, evolved Node B) in the LTE. The present invention is not limited, but for convenience of description, the following embodiments are used as an eNB. Give an example for explanation.

1 is a flow diagram of a method 100 of group calling in accordance with an embodiment of the present invention. Method 100 can be implemented by a base station in a wireless communication system.

The method 100 shown in Figure 1 includes:

110. Configure a group context for the user equipment.

For the M2M device, because the service is single, the MTC server or the core network element configures the group information for the base station, for example, instructs the base station to group the smart meters into groups, and the base station performs the initial configuration of the group context according to the information, and may directly The packet information is configured to the base station, and the base station configures the group context. The receiving user equipment sends a message carrying a machine type communication identifier (MTC indicator) to determine that the user equipment is the same group of user equipment. In addition, it may also be determined by other information such as an access point number (APN, Access Point Number) of the user equipment, and an International Mobile Subscriber Identity (IMSI) of a specific number segment. This embodiment of the present invention does not limit this.

Table 1 is an example of a group context in an embodiment of the present invention. The various parameters therein are merely examples for convenience of description, and the parameters may be defined in different manners in different embodiments, and may include, but are not limited to, one or more of the illustrated parameters in different embodiments. According to the definition of the parameters, the common parameters required by the different embodiments may be obtained by the combination of the different parameters. The embodiments of the present invention are not limited thereto, as long as the embodiments of the present invention can be implemented, various implementation manners are in the scope of the present invention. within.

The group context includes common information of all user equipments: group ID, machine type communication identity, group consecutive paging times, group initial access time offset and group call time, and sequence number and resource allocation information table for each user equipment. among them,

Group consecutive paging times: The number of times the base station sends a group call message to the group where the user equipment is located. Group initial access time offset: Used to identify which group call message the group call message is. If the number of consecutive pagings in the group is 3, the initial access time offset carried in the first group call message is set to 3, and the second group call message is set to 2, in the third group call message. Then set to 1.

Group call time: The time when the base station sends a group call message.

The sequence number and resource allocation information table includes sequence number information and resource information of one or more dedicated radio bearer sequence numbers, where the resource information includes: dedicated RB parameter information, dedicated time window length, dedicated preamble, and maximum number of preamble transmissions; : User equipment ID, intra-group number, and transmission success flag. At the initial setting, the contents of the serial number information are empty.

Exclusive RB parameter information: Parameter information corresponding to the specific radio bearer sequence number. RBS2 sets all the parameters of the RLC (Radio Link Control) and MAC (Media Access Control) layer configuration, and defines the specific physical layer transmission. Time-frequency resource blocks and modulation coding information.

Dedicated time window length: Specifies the duration of each user equipment on the dedicated time-frequency resource from the transmission of the dedicated preamble to the completion of the data transmission or only the duration of the data transmission completion.

Maximum number of preambles sent: The maximum number of times each user equipment is allowed to send a dedicated preamble.

User equipment ID: It can be the IMSI (International Mobile Subscriber Identity) of each user equipment. It can also be used as other temporary static identification TMSI (Temporary Mobile Subscriber Identity) or (>1;11 (Global User Temporary Identity, global user temporary identifier).

Exclusive radio bearer sequence number: All user equipments perform full-band uplink channel quality sounding (sounding) to perform initial MCS (modulation and coding) selection, and then perform group numbering after static RB grouping according to the MCS selected by all devices.

In-group serial number: The serial number of each group after each user equipment is regrouped by the exclusive radio bearer sequence number.

Transmission success flag: This message is used to mark the user equipment that was successfully transmitted. For example, the transmission success flag information of the user equipment that successfully transmitted the data can be set to true (true), and the transmission success flag information of the user equipment that failed to send the data can be set to false (false).

The exclusive resources of different exclusive radio bearer sequence numbers, such as exclusive RB parameter information, dedicated preamble and/or dedicated time window, are different. Others, such as the maximum number of preamble transmissions, may be the same.

120. Send a message of full-band uplink channel quality sounding to the user equipment. 130. Receive, by the user equipment, a response that carries a full-band uplink channel quality sounding signal, where the response is sent by the user equipment according to the full-band uplink channel quality detection message.

140. Update a group context according to a response carrying a full-band uplink channel quality sounding signal, where the updated group context includes a group call parameter, where the group call parameter is used to receive a group call message and send a response.

The modulation coding mode of the user equipment is selected according to the full-band uplink channel quality sounding signal, and the user equipment is subjected to static RB grouping according to the selected modulation and coding mode.

The grouping of the user equipment is performed by updating the sequence number and the resource allocation information table in the group, including assigning the intra-group serial number to the user equipment, adding the user equipment ID, and assigning a value to the transmission success identification bit, thereby establishing correspondence between various parameters. .

Is an example of an updated group context of an embodiment of the present invention. Group ID, MTC ID, group consecutive paging times, group initial access time offset, and group call time sequence number and resource allocation information table

RB1 (exclusive wireless ^^ serial number 1)

Resource information Exclusive RB parameter information 1. Exclusive time window length

1. Exclusive preamble 1 and preamble maximum transmission times serial number in the information group, the user is set to transmit the number 1 and the standby ID is set in the function group. The user is set to transmit the number 2. The standby ID is set in the function group. 3 standby ID function flag

RB2 (exclusive wireless carrier ^ serial number 2)

Resource information Exclusive RB parameter information 2. Dedicated time window length

2, the exclusive preamble 2 and the maximum number of preamble transmissions In the serial number information group, the sequence user is transmitted to the number 1. The standby ID is set in the function group. The user is set to transmit the number 2. The standby ID is set in the function group. The user is set to transmit the number 3.

RB3 (exclusive wireless 7 serial number 3)

150. Send a message carrying the group call parameter to the user equipment.

The group call parameters may include group ID, dedicated radio bearer parameter information, intra-group serial number, dedicated preamble, maximum number of preamble transmissions, dedicated time window length, group call time, and group consecutive paging times.

160. Send a group call message to the user equipment according to the updated group context.

Based on the updated group context, the most recent group call time is calculated, and at the group call time, a group call message is sent to the user equipment. The group call message can carry the group ID, the initial access time offset of the group, and the like.

170. Receive a response of the group call message sent by the user equipment according to the group call message and the group call parameter. And receiving, by the user equipment, a message carrying the synchronization information according to the received dedicated preamble; and receiving the data sent by the user equipment according to the synchronization information.

Set the transmission success flag information of the user equipment that successfully transmitted data to true; reset the Radio Link Control Protocol (RLC) and media access control (MAC,

Media Access Control ) An entity that receives responses to group call messages from other user devices.

According to the foregoing technical solution, the embodiment of the present invention can perform initial MCS selection by configuring full-band uplink channel quality detection according to low mobility of the user equipment, according to all user equipments. The selected MCS performs static RB grouping and configures the group context, and the user equipment still saves the group context after being transferred to the IDLE state, and then combines the sequential access, so that the user equipment receives the reporting request in order, according to the static configuration. Data transmission, thereby eliminating the need for RB configuration and reconfiguration, and without the PDCCH scheduling process, greatly saving signaling interaction, and the base station can maintain a context for each user equipment by maintaining the group context. Significant savings in overhead.

2 is a flow diagram of a method 200 of group calling in accordance with an embodiment of the present invention. Method 200 can be implemented by a user equipment in a wireless communication system.

The method 200 shown in Figure 2 includes:

210. Receive a message of a full-band uplink channel quality sounding sent by a base station.

220. Send, according to the message of the full-band uplink channel quality detection, a response carrying the full-band uplink channel quality sounding signal to the base station.

230. Receive, by the base station, a message that carries a group call parameter, where the group call parameter is used to receive a group call message and send a response.

240, storing a group call parameter, and maintaining the group call parameter while in an idle state.

The group call parameters may include group ID, group consecutive paging times, dedicated radio bearer sequence number, dedicated radio bearer parameter information, dedicated time window length, dedicated preamble, preamble maximum transmission number, and intra-group number.

250. Receive, according to the stored group call parameter, a group call message sent by the base station, and send a response to the group call message to the base station.

The group call message sent by the base station is received according to the receiving time corresponding to the group call time.

When the group call parameter includes the group ID, the intra-group serial number, the dedicated time window length, the maximum number of preamble transmissions, the dedicated preamble, and the dedicated RB parameter information, when the group call message sent by the base station is received, and the group call message carries the group When the ID is the same as the group ID in the stored group call parameter, the originating access time of the response of the group call message is calculated according to the intra-group serial number and the exclusive time window length.

At the time of initiating the access, according to the maximum number of transmissions of the preamble, the dedicated preamble is sent to the base station until the message carrying the synchronization information is received or the maximum number of transmissions of the preamble is reached. When a dedicated preamble is sent, it can be continuously transmitted in a unit transmission time interval (TTI). Usually, the power transmitted for the first time is started with the default power, and the subsequent power is increased step by step. As a different embodiment, the dedicated preamble is sent for the first time with the stored power decremented by one power at the time of successfully transmitting the message, and the power at the time of successfully transmitting the message is stored for use in the next response. After receiving the message carrying the synchronization information sent by the base station according to the received dedicated preamble, the data is sent according to the synchronization information and the dedicated RB parameter information.

After the data is sent successfully or the sending time reaches the length of the dedicated time window, the user equipment enters the idle state.

According to the foregoing technical solution, the embodiment of the present invention can perform initial MCS selection by configuring full-band uplink channel quality detection according to low mobility of the user equipment, perform static RB grouping and configure group context according to MCS selected by all user equipments, and After the user equipment is transferred to the IDLE state, the group context is still saved, and the user equipment is connected in order, so that the user equipment performs data transmission in sequence and in a static configuration when receiving the report request, thereby implementing configuration and reconfiguration of the RB. The PDCCH scheduling process is also not required, which greatly saves signaling interaction, and the base station can save the overhead by maintaining the context of the group compared to maintaining a context for each user equipment.

3 is a timing diagram of a method of group call in accordance with another embodiment of the present invention.

301. The base station configures a group context for the MTC user equipment.

See Table 1 for an example of a group context in accordance with an embodiment of the present invention. The various information therein is merely an example of convenience for illustration, and information may be defined in different ways in different embodiments.

303. After the MTC user equipment is powered on, the MTC user device initiates the access according to the manner of the general user equipment, sends the preamble, and obtains a TA (Timing Advance), and then sends an RRC Connection Request (RRCConnectionRequest) message, and the message can carry the MTC user. The MTC identifier of the device's classification ( MTC indicator ).

305. After receiving, the base station acquires an MTC identifier, and feeds back an RRC Connection Setup (RRC ConnectionSetup) message, where the RRC connection setup message requires the MTC user equipment to perform full-band uplink channel quality sounding.

307. After receiving the RRC connection setup message, the MTC user equipment feeds back an RRC Connection Setup Complete (RRCConnectionSetupComplete) message, where the message carries a full-band uplink channel quality sounding signal (Sounding RS).

309. After receiving the RRC connection setup complete message, the base station allocates the intra-group sequence number to the UE based on the full-band uplink channel quality sounding signal, and updates the update sequence number and the resource allocation information table in the group context, where the transmission success flag is set to False, see Table 2 for an example.

311. The base station sends an RRC connection reconfiguration (RRCConnection econfiguration) message to the MTC user equipment, where the message carries the group call parameter for receiving the group call message and sending the response in the updated group context, and the content added in the message is as follows: MTC specific information ( MTCSpecificInfo )

Group ID ( groupID )

Group consecutive paging times ( groupPagingTimes )

Information corresponding to the exclusive radio bearer sequence number ( RBInfo )

Exclusive radio bearer parameters (BPara)

Group number (SequencelD)

Exclusive preamble

Preamble maximum number of transmissions

Exclusive time window length

Group call moment

313. The MTC user equipment receives an RRC connection reconfiguration message, where the message carries a group call parameter in the group context for receiving the group call message and sending a response, and stores the group call parameter as a reconfigured parameter.

315. The MTC user equipment feeds back a RRC Connection Reconfiguration Complete (RRCConnectionReconfigurationComplete) message to the base station.

317: The MTC user equipment and the base station perform the same connection release process as the general user equipment, save the stored group call parameters, and calculate the time of receiving the group call message in the same manner as the base station by using the group ID, and then enter idle (idle) In the state, the group call message is received, and the group call message is continuously received according to the calculated time of receiving the group call message.

So far, the access and sequence number assignment process of a single MTC UE is completed, and all MTC UEs are executed according to the above procedure, followed by a group call paging and response process.

319. The base station triggers the group call, calculates the latest group call time, and sends a group call message, and the group call message carries the following content as shown in Table 4 below: group call list (groupPagingList)

Group ID (groupID) Required Parameter (MD) Group Initial Access Time Offset Required Data (MD) I ( initialAccessTimeOffset ) | | If the group consecutive paging times is 3 times, the first group access time is set to 3 for the first group call, 2 for the second time, and 1 for the third time. In this way, the MTC user equipment can learn that the first group call message is received, so as to ensure that the time of the initiated initiating access time is the same as the time required for the group call message.

The MTC UE wakes up to receive the group call message at the time of receiving the group call message, and if the group call message is detected, determines whether the group ID in the group call message is the same as the group ID in the stored group call parameter, and if they are the same, According to the sequence number of the group (sequencelD), the exclusive radio bearer sequence number, the exclusive RB parameter information, and the dedicated time window length, calculate the initiating access time:

Initiating access time = ( sequencelD-1) dedicated time window length

323. The MTC user equipment sends a dedicated preamble by using a dedicated preamble configured in the group call parameter at the time of initiating the access.

The dedicated preamble transmission mode may continuously send the dedicated preamble in unit TTI, and sequentially increase the power of the first step (step) to facilitate network detection until the RA (Random Access Response) carrying the synchronization information is received. The message or the exclusive preamble is climbed to the maximum number of transmissions of the preamble. If the RAR is not received after the maximum number of preamble transmissions, the exception processing is performed.

325. After receiving the dedicated preamble sent by the MTC user equipment, the base station feeds back the RAR message carrying the synchronization information, and prepares to start receiving data.

327. After determining the TA according to the synchronization information, the MTC user equipment starts to send data after a fixed time interval defined in the configuration of the dedicated RB parameter information.

329. When the data transmission is completed or the dedicated time window is long, the MTC user equipment is re-entered into the idle state. This time, the data is completed, and the group call message continues to be monitored.

331. After completing the data reception by the single MTC UE, the base station sets the transmission success flag of the MTC UE to be true, and resets an entity such as an RLC or a MAC. This will prepare the data for the next MTC user device.

After the sending period of all MTC user equipments expires, the MTC user equipment that failed to transmit is processed abnormally. After that, the transmission success flag of all MTC user equipments is set to false, and the reporting process ends.

The exception handling for the MTC user equipment may be a separate call procedure to perform a general user equipment. According to the foregoing technical solution, the embodiment of the present invention can perform initial MCS selection by configuring full-band uplink channel quality detection according to low mobility of the user equipment, perform static RB grouping and configure group context according to MCS selected by all user equipments, and After the user equipment is transferred to the IDLE state, the group context is still saved, and the user equipment is connected in order, so that the user equipment performs data transmission in sequence and in a static configuration when receiving the report request, thereby implementing configuration and reconfiguration of the RB. The PDCCH scheduling process is also not required, which greatly saves signaling interaction, and the base station can save the overhead by maintaining the context of the group compared to maintaining a context for each user equipment.

4 is a block diagram of a device 40 for group calling in accordance with an embodiment of the present invention, including:

a configuration module 41, configured to configure a group context for the user equipment;

The transceiver module 42 is configured to send a message of the full-band uplink channel quality detection to the user equipment, and a response for receiving the full-band uplink channel quality sounding signal sent by the user equipment, where the response is the user equipment 4, according to the message of the full-band uplink channel quality detection;

The processing module 43 is configured to update, according to the response that the full-band uplink channel quality sounding signal is received by the transceiver module, a group context configured by the configuration module, where the updated group context includes a group call parameter, the group The call parameter is used to receive the group call message and send a response;

The transceiver module 42 is configured to send, to the user equipment, a message of the group call parameter, where the group call parameter is included in the group context updated by the processing module;

The transceiver module 42 is configured to send a group call message to the user equipment according to the group context updated by the processing module;

The transceiver module 42 is configured to receive a response of the group call message sent by the user equipment according to the group call message and the group call parameter. .

The device 40 implements the method 100, and details are not described again.

The transceiver module 42 is further configured to receive a communication identifier from the user equipment. The configuration module 41 is specifically configured to configure a group context for the user equipment according to the machine type communication identifier received by the transceiver module from the user equipment.

The processing module 43 is specifically configured to:

Selecting a modulation and coding mode of the user equipment according to the full-band uplink channel quality detection signal, performing a static radio bearer packet for the user equipment according to the selected modulation and coding mode, and performing sequence number and resource on the grouped user equipment. The update of the allocation information table correspondingly stores the correspondence between the group ID, the user equipment ID, the dedicated radio bearer sequence number, the intra-group sequence number, and the transmission success flag bit information.

As shown in FIG. 5, the device 40 further includes a calculating module 44, configured to calculate a latest group call time according to the group context updated by the processing module;

The transceiver module 42 is configured to send a group call message to the user equipment at the group call time calculated by the computing module.

The transceiver module 42 is specifically configured to:

Receiving the dedicated preamble sent by the user equipment, and sending the message carrying the synchronization information to the user equipment according to the received preamble, and receiving the user The data sent by the device according to the synchronization information.

Further, the processing module 43 is further configured to set the transmission success flag information of the user equipment that successfully sends the data to true, and reset the radio link control layer protocol and the medium access control entity.

The group context updated by the processing module 43 includes:

a group ID, a machine type communication identifier, a group consecutive page number, a group initial access time offset, a group call time and a sequence number, and a resource allocation information table, wherein the sequence number and resource allocation information table includes one or more exclusive wireless Carry serial number information and resource information of the serial number,

The serial number information of the exclusive radio bearer sequence number and the resource information in the resource information include: dedicated RB parameter information, dedicated time window length, dedicated preamble, and maximum number of preamble transmissions; sequence number information and resource information of the dedicated radio bearer sequence number The serial number information in the following includes: user equipment ID, intra-group serial number, and transmission success identification bit.

6 is a block diagram of another device 50 for group call in accordance with an embodiment of the present invention, including:

The transceiver module 51 is configured to receive a message that the base station sends the full-band uplink channel quality detection, and send a response that carries the full-band uplink channel quality detection signal to the base station according to the message of the full-band uplink channel quality detection. The transceiver module 51 is configured to receive a message that carries a group call parameter sent by the base station, where the group call parameter is used to receive a group call message and send a response;

a storage module 52, configured to store a group call parameter received by the transceiver module, and maintain the group call parameter when in an idle state;

The transceiver module 51 is configured to receive, according to the group call parameter stored by the storage module, a group call message sent by the base station, and send a response of the group call message to the base station.

The device 50 implements the method 200, and details are not described again.

Further, the transceiver module 51 is further configured to send a message carrying a machine type communication identifier to the base station, so that the user equipment configures a group context.

The transceiver module 51 is specifically configured to: when the group call parameter includes a group ID, a group serial number, a dedicated time window length, a preamble maximum transmission number, a dedicated preamble, and exclusive RB parameter information, receiving the base station. When the group call message is sent, and the group ID carried by the group call message is the same as the stored group ID, the response of the group call message is calculated according to the intra-group signal and the dedicated time window length. At the time of initiating access, according to the maximum number of transmissions of the preamble, continuously transmitting the dedicated preamble to the base station at a unit transmission time interval until receiving a message carrying synchronization information or reaching the preamble a maximum number of transmissions of the code; after receiving the message carrying the synchronization information sent by the base station according to the received exclusive preamble, transmitting data to the base station according to the synchronization message and the dedicated RB parameter information.

The transceiver module 51 firstly transmits the dedicated preamble with the power of one level decremented when the last successfully transmitted message is stored, and stores the power when the message is successfully transmitted.

As shown in FIG. 7, the device 50 further includes:

The processing module 53 is configured to: after the response is successfully sent or the sending time reaches the length of the dedicated time window, the device enters an idle state. Those of ordinary skill in the art will appreciate that the modules and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the module described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. In actual implementation, there may be another division manner, for example, multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or module, and may be electrical, mechanical or otherwise.

The modules described as separate components may or may not be physically separate. The components displayed as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.

The functions, if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium. According to the understanding, the part of the technical solution of the present invention that contributes in essence or to the prior art or the part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium shield. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or A variety of media such as optical discs that can store program code.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

A method for group call, characterized in that it comprises:

Configuring a group context for the user device;

Transmitting a message of the full-band uplink channel quality detection to the user equipment;

Receiving, by the user equipment, a response that carries a full-band uplink channel quality sounding signal, where the response is sent by the user equipment according to the message of the full-band uplink channel quality detection;

Updating the group context according to the response of the full-band uplink channel quality sounding signal, where the updated group context includes a group call parameter, and the group call parameter is used to receive a group call message and send a response;

Sending, to the user equipment, a message carrying the group call parameter;

Sending a group call message to the user equipment according to the updated group context;

Receiving a response of the user equipment according to the group call message and the group call message sent by the group call parameter.

2. The method according to claim 1, wherein the configuring the group context for the user equipment comprises:

A group context is configured for the user equipment based on the machine type communication identification received from the user equipment.

The method according to claim 1 or 2, wherein the updating the group context according to the response of the full-band uplink channel quality sounding signal comprises:

Selecting a modulation and coding mode of the user equipment according to the full-band uplink channel quality detection signal, performing a static radio bearer packet for the user equipment according to the selected modulation and coding mode, and performing sequence number and resource on the grouped user equipment. The update of the allocation information table correspondingly stores the group ID, the user equipment ID, the exclusive radio bearer sequence number, the intra-group sequence number, and the transmission success flag bit information.

The method according to any one of claims 1 to 3, wherein the sending a group call message to the user equipment according to the updated group context comprises:

And calculating, according to the updated group context, a latest group call time, and sending a group call message to the user equipment at the latest group call time.

The method according to any one of claims 1 to 4, wherein, when the group call parameter includes a dedicated preamble, the receiving the user equipment according to the group call message and the The response of the group call message sent by the group call parameter includes:

Receiving the dedicated preamble sent by the user equipment;

Sending a message carrying the synchronization information to the user equipment according to the received dedicated preamble;

Receiving data sent by the user equipment according to the synchronization information.

The method according to any one of claims 1 to 5, wherein the method further comprises:

Setting the transmission success flag bit information of the user equipment that successfully sends the data to true;

Reset the radio link control layer protocol and media access control entity.

The method according to any one of claims 1 to 6, wherein the updated group context comprises:

Group ID, machine type communication identifier, group consecutive paging times, group initial access time offset, group call time and sequence number, and resource allocation information table, wherein the sequence number and resource allocation information table includes one or more exclusive wireless Carry serial number information and resource information of the serial number,

The serial number information of the exclusive radio bearer sequence number and the resource information in the resource information include: dedicated RB parameter information, dedicated time window length > dedicated preamble and preamble maximum transmission times; sequence number information and resource information of the exclusive radio bearer sequence number The serial number information in the following includes: user equipment ID, intra-group serial number, and transmission success identification bit.

8. A method for group call, characterized in that:

Receiving a message of the full-band uplink channel quality detection sent by the base station;

And transmitting, according to the message of the full-band uplink channel quality detection, a response carrying the full-band uplink channel quality detection signal to the base station;

Receiving, by the base station, a message carrying a group call parameter, where the group call parameter is used to receive a group call message and send a response;

And storing the group call parameter, and maintaining the group call parameter when in an idle state;

And receiving, according to the stored group call parameter, a group call message sent by the base station, and sending a response of the group call message to the base station.

The method according to claim 8, wherein the method further comprises: A message carrying a machine type communication identity is sent to the base station to cause the user equipment to configure a group context.

The method according to any one of claims 8 to 9, wherein the group call parameters include a group ID, a group serial number, a dedicated time window length, a preamble maximum transmission number, a dedicated preamble, and a dedicated RB parameter information. And sending, by the base station according to the stored group call parameters, the response to the group call message to the base station includes:

When receiving the group call message sent by the base station, and the group ID carried by the group call message is the same as the stored group ID, calculating the location according to the group serial number and the exclusive time window length Initiating an access time of the response of the group call message;

And sending, according to the maximum number of transmission times of the preamble, the dedicated preamble to the base station at a unit transmission time interval until receiving a message carrying synchronization information or reaching the maximum transmission of the preamble Number of times

After receiving the message carrying the synchronization information sent by the base station according to the received preamble, the data is sent to the base station according to the synchronization message and the dedicated RB parameter information.

The method according to claim 10, wherein the continuously transmitting the dedicated preamble in the unit transmission time interval comprises:

The dedicated preamble is first transmitted with the stored power decremented by one power at the time of the last successful transmission of the message, and the power at the time of successfully transmitting the message is stored.

The method according to claim 10, wherein the method further comprises: entering the idle state after the response is successfully sent or the sending time reaches a dedicated time window length.

13. A device for group call, characterized in that:

a configuration module, configured to configure a group context for the user equipment;

a transceiver module, configured to send a message of the full-band uplink channel quality detection to the user equipment, and a response for receiving the full-band uplink channel quality sounding signal sent by the user equipment, where the response is The message of the full-band uplink channel quality detection is sent;

a processing module, configured to update, according to the response that the full-band uplink channel quality sounding signal is received by the transceiver module, a group context configured by the configuration module, where the updated group context includes a group call parameter, the group call The parameter is used to receive a group call message and send a response;

The transceiver module is configured to send a message carrying the group call parameter to the user equipment, The group call parameter is included in the group context updated by the processing module;

The transceiver module is configured to send a group call message to the user equipment according to the group context updated by the processing module;

The transceiver module is configured to receive a response of the group call message sent by the user equipment according to the group call message and the group call parameter.

14. Apparatus according to claim 13 wherein:

The transceiver module is further configured to receive a communication identifier from the user equipment;

The configuration module is specifically configured to configure a group context for the user equipment according to the machine type communication identifier received by the transceiver module from the user equipment.

The device according to claim 13 or 14, wherein the processing module is specifically configured to:

The device according to any one of claims 13 to 15, wherein the device further comprises: a calculating module, configured to calculate a latest group call time according to the group context updated by the processing module;

The transceiver module is configured to send a group call message to the user equipment at the group call time calculated by the computing module.

The device according to any one of claims 13-16, wherein the transceiver module is specifically configured to:

The device according to any one of claims 13 to 17, wherein the processing module is further configured to set a transmission success flag bit information of the user equipment that successfully sends the data to true, Reset the radio link control layer protocol and media access control entity.

The device according to any one of claims 13 to 18, wherein the group context updated by the processing module comprises: a group ID, a machine type communication identifier, a group consecutive page number, a group initial access time offset, a group call time and a sequence number, and a resource allocation information table, wherein the sequence number and resource allocation information table includes one or more exclusive wireless Carry serial number information and resource information of the serial number,

The serial number information of the exclusive radio bearer sequence number and the resource information in the resource information include: dedicated RB parameter information, dedicated time window length, dedicated preamble and preamble maximum transmission times; sequence number information and resource information of the exclusive radio bearer sequence number The serial number information in the following includes: user equipment ID, intra-group serial number, and transmission success identification bit.

20. A device for group call, characterized in that:

a transceiver module, configured to receive a message that the base station sends the full-band uplink channel quality detection, and send a response carrying the full-band uplink channel quality detection signal to the base station according to the message of the full-band uplink channel quality detection;

The transceiver module is configured to receive a message that carries a group call parameter sent by the base station, where the group call parameter is used to receive a group call message and send a response;

a storage module, configured to store a group call parameter received by the transceiver module, and maintain the group call parameter when in an idle state;

The transceiver module is configured to receive a group call message sent by the base station according to the group call parameter stored by the storage module, and send a response of the group call message to the base station.

21. Apparatus according to claim 20 wherein:

The transceiver module is further configured to send a message carrying a machine type communication identifier to the base station, so that the user equipment configures a group context.

22. Apparatus according to any of claims 20 to 21, characterized in that

The transceiver module is specifically configured to: when the group call parameter includes a group ID, a group serial number, a dedicated time window length, a preamble maximum transmission number, a dedicated preamble, and a dedicated RB parameter information, receive the location sent by the base station And when the group ID carried by the group call message is the same as the stored group ID, calculating an initiation access time of the response of the group call message according to the intra-group signal and the dedicated time window length;

And sending, according to the maximum number of transmission times of the preamble, the dedicated preamble to the base station at a unit transmission time interval until receiving the message carrying the synchronization information or reaching the maximum of the preamble Number of transmissions;

After receiving the message carrying the synchronization information sent by the base station according to the received preamble, according to the synchronization message and the dedicated RB parameter information, sending the number to the base station According to.

The device according to claim 22, wherein the transceiver module first transmits the dedicated preamble with a power of one level of power stored when the last successful transmission of the message is stored, and stores the current preamble. The power at which the message was successfully sent.

The device according to claim 22, wherein the device further comprises: a processing module, configured to: after the response is successfully sent, or the sending time reaches the length of the dedicated time window, so that the device enters an idle state .