GROUP CALL METHOD AND DEVICE

• US 20140179293A1
• Filed: 02/26/2014
• Published: 06/26/2014
• Est. Priority Date: 08/30/2011
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: LI, Yue, Hu, Zhenxing, Zhu, Song
• Granted Patent: US 10,154,509 B2
• Time in Patent Office: Days
• US Class Current: 455/416
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 4/16 Communication-related supplementary services, e.g. call-transfer or call-hold
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 72/121 for groups of terminals or users
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 76/12 Setup of transport tunnels

Abstract

Embodiments of the present invention provide a group call method and device. The method includes: configuring a group context for a user equipment according to channel resource information or according to network side capability information and channel resource information; sending a message carrying a group call parameter in the group context to the user equipment, where the group call parameter is used to receive a group call message and send a response; sending a group call message to the user equipment according to the group context; and receiving a response, to the group call message, sent by the user equipment according to the group call parameter.

Claims

1. A group call method, comprising:

configuring a group context for a user equipment according to channel resource information or according to network side capability information and channel resource information;

sending a message carrying a group call parameter in the group context to the user equipment, wherein the group call parameter is used to receive a group call message and send a response;

sending a group call message to the user equipment according to the group context; and

receiving a response, to the group call message, sent by the user equipment according to the group call parameter;

wherein the channel resource information comprises sending resource information, configured by a base station for the user equipment, of an uplink channel quality detecting signal, and the network side capability information comprises the number of dynamically scheduled user equipments processed by the base station.

2. The method according to claim 1, wherein the configuring a group context for a user equipment according to channel resource information or according to network side capability information and channel resource information further comprises:

configuring the group context for the user equipment according to a type of the user equipment.

3. The method according to claim 2, wherein

the type of the user equipment is determined according to an access point number, quality of service, and/or a machine type communication identifier of the user equipment.

4. The method according to claim 1, wherein when the group call parameter comprises an exclusive preamble transmission time frequency resource, an exclusive preamble, an exclusive uplink channel resource, and common radio bearer parameter information, the receiving a response, to the group call message, sent by the user equipment according to the group call parameter comprises:

receiving the exclusive preamble sent, by using the exclusive preamble transmission time frequency resource by the user equipment;

sending a message carrying synchronization information to the user equipment according to the received exclusive preamble;

receiving the uplink channel quality detecting signal sent, according to the synchronization information and the exclusive uplink channel resource, by the user equipment;

sending scheduling signaling to the user equipment according to the uplink channel quality detecting signal; and

receiving data sent, according to the scheduling signaling and the common radio bearer parameter information, by the user equipment.

5. The method according to claim 4, wherein the method further comprises:

setting transmission success flag byte information of the user equipment that fails in data transmission to be FALSE.

6. The method according to claim 1, wherein the group context comprises:

common radio bearer information and one or more group information tables corresponding to the common radio bearer information, wherein

the common radio bearer information comprises common radio bearer parameter information, a the number of user equipments in each group, the number of continuous pagings of the group, the number of continuous pagings of the group, a time window length, and/or maximum preamble transmission times; and

the group information table comprises a group ID, a user equipment ID, an intra-group serial number, exclusive preamble transmission time frequency resource information, an exclusive preamble, a transmission success flag byte, and an exclusive uplink channel resource.

7. A group call method, comprising:

receiving a message sent by a base station and carrying a group call parameter in a group context that is used to receive a group call message and send a response, wherein the group context is configured according to channel resource information or according to network side capability information and channel resource information, the channel resource information comprises sending resource information, configured by the base station for the user equipment, of an uplink channel quality detecting signal, and the network side capability information comprises the number of dynamically scheduled user equipments processed by the base station;

storing the group call parameter, and still retaining the group call parameter in an idle state; and

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

8. The method according to claim 7, wherein when the group call parameter comprises a group ID, an exclusive preamble transmission time frequency resource, an exclusive preamble, an exclusive uplink channel resource, common radio bearer parameter information, a time window length, and/or maximum preamble transmission times, the receiving, according to the stored group call parameter, the group call message sent by the base station, and sending a response to the group call message to the base station comprises:

when a group ID carried by the received group call message sent by the base station is the same as the stored group ID, using the exclusive preamble transmission time frequency resource to send the exclusive preamble to the base station continuously in a unit transmission time interval TTI or periodically until a message carrying synchronization information is received, or the time window length is reached, or the maximum preamble transmission times are reached;

sending an uplink channel quality detecting signal to the base station according to the synchronization information and the exclusive uplink channel resource until all data is successfully sent, or stopping the transmission when data transmission reaches maximum retransmission times of a hybrid automatic retransmission request HARQ; and

receiving scheduling signaling and the common radio bearer parameter information sent, according to the uplink channel quality detecting signal, by the base station, and sending data to the base station.

9. The method according to claim 8, wherein the sending the exclusive preamble continuously in a unit transmission time interval TTI or periodically comprises:

sending the exclusive preamble for the first time with a power which is decreased by a grade from a stored power recorded when the message is successfully sent last time, and storing a power recorded when the message is successfully sent this time.

10. The method according to claim 8, wherein the method further comprises:

when the user equipment succeeds in data transmission, or the message carrying the synchronization information is still not received when the time window length is reached, or data transmission reaches the maximum retransmission times of the hybrid automatic retransmission request HARQ, entering, by the user equipment, the idle state.

11. The method according to claim 7, wherein the group context comprises:

common radio bearer information and one or more group information tables corresponding to the common radio bearer information, wherein

the common radio bearer information comprises common radio bearer parameter information, a the number of user equipments in each group, the number of continuous pagings of the group, a time window length, and/or maximum preamble transmission times; and

the group information table comprises a group ID, a user equipment ID, an intra-group serial number, exclusive preamble transmission time frequency resource information, an exclusive preamble, a transmission success flag byte, and an exclusive uplink channel resource.

12. A group call device, comprising:

a processor, adapted to configure a group context for a user equipment according to channel resource information or according to network side capability information and channel resource information; and

a transmitter, adapted to send a message carrying a group call parameter in the group context configured by the processor to the user equipment, wherein the group call parameter is used to receive a group call message and send a response, wherein

the transmitter is further adapted to send a group call message to the user equipment according to the group context configured by the processor; and

the transmitter is further adapted to receive a response, to the group call message, sent by the user equipment according to the group call parameter configured by the processor;

wherein the channel resource information comprises sending resource information, configured by the device for the user equipment, of an uplink channel quality detecting signal, and the network side capability information comprises the number that the processor processes dynamic scheduled user equipments.

13. The device according to claim 12, wherein

the processor is further adapted to configure the group context for the user equipment according to a type of the user equipment.

14. The device according to claim 13, wherein

the processor is specifically adapted to determine the type of the user equipment according to an access point number, quality of service, and/or a machine type communication identifier of the user equipment.

15. The device according to claim 12, wherein the transmitter is specifically adapted to:

when the group call parameter comprises an exclusive preamble transmission time frequency resource, an exclusive preamble, an exclusive uplink channel resource, and common radio bearer parameter information, receive the exclusive preamble sent, by using the exclusive preamble transmission time frequency resource, by the user equipment;

send a message carrying synchronization information to the user equipment according to the received exclusive preamble;

receive the uplink channel quality detecting signal sent, according to the synchronization information and the exclusive uplink channel resource, by the user equipment;

send scheduling signaling to the user equipment according to the uplink channel quality detecting signal; and

receive data sent, according to the scheduling signaling and the common radio bearer parameter information, by the user equipment.

16. The device according to claim 15, wherein the device further comprises:

the processor, adapted to set transmission success flag byte information of the user equipment that fails in data transmission to be FALSE.

17. The device according to claim 12, wherein the group context configured by the processor comprises:

common radio bearer information and one or more group information tables corresponding to the common radio bearer information, wherein

the common radio bearer information comprises common radio bearer parameter information, a the number of user equipments in each group, the number of continuous pagings of the group, a time window length, and/or maximum preamble transmission times; and

the group information table comprises a group ID, a user equipment ID, an intra-group serial number, exclusive preamble transmission time frequency resource information, an exclusive preamble, a transmission success flag byte, and an exclusive uplink channel resource.

18. A group call device, comprising:

a transmitter, adapted to receive a message sent by a base station and carrying a group call parameter in a group context that is used to receive a group call message and send a response, wherein the group context is configured according to channel resource information or according to network side capability information and channel resource information, the channel resource information comprises sending resource information, configured by the base station, of an uplink channel quality detecting signal, and the network side capability information comprises the number of dynamically scheduled user equipments processed by the base station;

a memory, adapted to store the group call parameter received by the transmitter; and

the processor, adapted to still retain the group call parameter stored by the memory in an idle state;

wherein

the transmitter is adapted to receive, according to the group call parameter stored by the memory, the group call message sent by the base station, and send a response to the group call message to the base station.

19. The device according to claim 18, wherein the transmitter is specifically adapted to:

when the group call parameter comprises a group ID, an exclusive preamble transmission time frequency resource, an exclusive preamble, common radio bearer parameter information, a time window length, and/or maximum preamble transmission times, and a group ID carried by the group call message sent by the base station is the same as the group ID stored by the memory, send the exclusive preamble to the base station continuously in a unit transmission time interval TTI or periodically until a message carrying synchronization information is received, or the time window length is reached, or the maximum preamble transmission times are reached, wherein the exclusive preamble uses a time frequency resource sent by the exclusive preamble to send to the base station;

send an uplink channel quality detecting signal to the base station according to the synchronization information and the exclusive uplink channel resource until all data is successfully sent, or stop the transmission when data transmission reaches maximum retransmission times of a hybrid automatic retransmission request HARQ; and

receive scheduling signaling and the common radio bearer parameter information sent, according to the uplink channel quality detecting signal, by the base station, and send data to the base station.

20. The device according to claim 19, wherein

the transmitter is specifically adapted to send the exclusive preamble for the first time with a power which is decreased by a grade from a stored power recorded when the message is successfully sent last time, and store a power recorded when the message is successfully sent this time.

21. The device according to claim 19, wherein the processor is further adapted to:

when the transmitter succeeds in data transmission, or the message carrying the synchronization information is still not received when the time window length is reached, or data transmission reaches the maximum retransmission times of the hybrid automatic retransmission request HARQ, enable the device to enter the idle state.

22. The device according to claim 18, wherein the group context received by the transmitter comprises:

common radio bearer information and one or more group information tables corresponding to the common radio bearer information, wherein

the common radio bearer information comprises common radio bearer parameter information, a the number of user equipments in each group, the number of continuous pagings of the group, a time window length, and/or maximum preamble transmission times; and

the group information table comprises a group ID, a user equipment ID, an intra-group serial number, exclusive preamble transmission time frequency resource information, an exclusive preamble, a transmission success flag byte, and an exclusive uplink channel resource.