Data Sending Method, Data Receiving Method, Data Transmit End, and Data Receive End

• US 20190320369A1
• Filed: 02/25/2017
• Published: 10/17/2019
• Est. Priority Date: 12/28/2016
• 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: Yang, Jun, Zhou, Xiyu, Chen, Jian, Zhang, Ya, Li, Jiaxin, Zhou, Yaoying, Qian, Jing, Zhang, Zhiwei
• Granted Patent: US 11,102,690 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 36/0005 Control or signalling for completing the hand-off
• CPC Class Codes: H04W 36/03 Reselecting a link using a direct mode connection
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/22 for handling the traffic
• CPC Class Codes: H04W 36/30 by measured or perceived connection quality data
• CPC Class Codes: H04W 36/36 by user or terminal equipment
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

A data sending method, a data receiving method, a data transmit end, and a data receive end are provided. The data sending method includes: obtaining a transmission path used for data transmission, where the transmission path currently uses a first physical link group to transmit data; switching, based on a preconfigured link switching policy and transmission information of the transmission path, a physical link used by the transmission path from the first physical link group to a second physical link group; sending a first link switching notification message to a data receive end, where the first link switching notification message includes information indicating that the physical link used by the transmission path is switched from the first physical link group to the second physical link group; and continuing transmitting the data through a transmission path that uses the second physical link group.

Claims

1-41. -41. (canceled)

42. A data sending method, comprising:

obtaining a transmission path used for data transmission, wherein the transmission path currently uses a first physical link group to transmit data, and the first physical link group comprises at least one physical link;

switching, based on a preconfigured link switching policy and transmission information of the transmission path, a physical link used by the transmission path from the first physical link group to a second physical link group, wherein the second physical link group comprises at least one physical link, the second physical link group and the first physical link group have one or more same physical links, or the second physical link group and the first physical link group have no same physical link, and the transmission information comprises information obtained by monitoring the first physical link group used by the transmission path;

sending a first link switching notification message to a data receive end, wherein the first link switching notification message comprises information indicating that the physical link used by the transmission path is switched from the first physical link group to the second physical link group; and

continuing transmitting the data through a transmission path that uses the second physical link group.

43. The method according to claim 42, wherein the switching, based on a preconfigured link switching policy and transmission information of the transmission path, the physical link used by the transmission path from the first physical link group to a second physical link group comprises:

when the transmission path uses the first physical link group to transmit the data, monitoring a transmission rate of the first physical link group used by the transmission path, to obtain load information; and

switching, based on a load policy in the link switching policy and the load information, the physical link used by the transmission path from the first physical link group to the second physical link group.

44. The method according to claim 43, wherein the switching, based on a load policy in the link switching policy and the load information, the physical link used by the transmission path from the first physical link group to the second physical link group comprises:

collecting, based on the load policy in the link switching policy, statistics about load of the second physical link group of a data transmit end that configures the transmission path, to obtain load information of the second physical link group; and

switching, based on the load policy in the link switching policy and the load information of the second physical link group, the physical link used by the transmission path from the first physical link group to the second physical link group.

45. The method according to claim 42, wherein the switching, based on a preconfigured link switching policy and transmission information of the transmission path, the physical link used by the transmission path from the first physical link group to a second physical link group comprises:

when the transmission path uses the first physical link group to transmit the data, obtaining path availability information based on a quantity of links and a quantity of paths that are used by a data transmit end that configures the transmission path, wherein the path availability information comprises information about whether the transmission path can continue to use the first physical link group; and

switching, based on the link switching policy and the path availability information, the physical link used by the transmission path from the first physical link group to the second physical link group.

46. The method according to claim 42, wherein before the obtaining a transmission path used for data transmission, the method further comprises:

obtaining a content type and a data volume of the data;

configuring the first physical link group for the transmission path based on the content type and the data volume.

47. The method according to claim 42, wherein the method further comprises:

obtaining authentication information of a first physical link in the first physical link group; and

if authentication of the first physical link succeeds, determining, based on the authentication information of the first physical link, that authentication of the physical link in the second physical link group between a data transmit end that configures the transmission path and the data receive end succeeds.

48. The method according to claim 42, wherein the continuing transmitting the data through a transmission path that uses the second physical link group comprises:

encapsulating the data by using a transport layer protocol corresponding to the physical link in the first physical link group; and

continuing transmitting, through the transmission path that uses the second physical link group, the data that is encapsulated by using the transport layer protocol.

49. The method according to claim 42, wherein after the sending a first link switching notification message to a data receive end, the method further comprises:

receiving a first link switching feedback message sent by the data receive end; and

if the first link switching feedback message indicates that the data receive end cannot switch the first physical link group to the second physical link group, switching, based on the preconfigured link switching policy and the transmission information of the transmission path, the physical link used by the transmission path from the first physical link group to a third physical link group, wherein the third physical link group comprises at least one physical link, and the third physical link group and the first physical link group have one or more same physical links, or each physical link of the third physical link group is different from that of the first physical link group; and

sending a second link switching notification message to the data receive end;

or

if the first link switching feedback message indicates that the data receive end successfully switches the first physical link group to the second physical link group, triggering execution of the following step;

continuing transmitting the data through the transmission path that uses the second physical link group.

50. The method according to claim 42, wherein when the first physical link group comprises a first physical link, the switching, based on a preconfigured link switching policy and transmission information of the transmission path, a physical link used by the transmission path from the first physical link group to a second physical link group comprises:

switching, based on the preconfigured link switching policy and the transmission information of the transmission path, the physical link used by the transmission path from the first physical link to a second physical link;

or in addition to the first physical link used by the transmission path, adding a second physical link based on the preconfigured link switching policy and the transmission information of the transmission path, wherein the second physical link belongs to the second physical link group.

51. A data receiving method, comprising:

receiving a first link switching notification message sent by a data transmit end, wherein the first link switching notification message comprises information indicating that a physical link used by a transmission path of the data transmit end is switched from a first physical link group to a second physical link group, the transmission path currently uses the first physical link group to transmit data, the first physical link group comprises at least one physical link, the second physical link group comprises at least one physical link, and the second physical link group and the first physical link group have one or more same physical links, or the second physical link group and the first physical link group have no same physical link;

switching a physical link used by a transmission path of data receive end from the first physical link group to the second physical link group; and

continuing receiving the data through a transmission path that uses the second physical link group.

52. The method according to claim 51, wherein after the receiving a first link switching notification message sent by a data transmit end, the method further comprises:

determining whether the data receive end can switch the first physical link group to the second physical link group; and

if the data receive end cannot switch the first physical link group to the second physical link group, sending a first link switching feedback message to the data transmit end, wherein the first link switching feedback message comprises information indicating that the data receive end cannot switch the first physical link group to the second physical link group.

53. The method according to claim 51, wherein after the receiving a first link switching notification message sent by a data transmit end, the method further comprises:

determining whether the data receive end can switch the first physical link group to the second physical link group; and

if the data receive end can switch the first physical link group to the second physical link group, after the physical link used by the transmission path of the data receive end is switched from the first physical link group to the second physical link group, sending a first link switching feedback message to the data transmit end, wherein the first link switching feedback message comprises information indicating that the data receive end successfully switches the first physical link group to the second physical link group.

54. The method according to claim 51, wherein after the continuing receiving the data through a transmission path that uses the second physical link group, the method further comprises:

decapsulating the data by using a transport layer protocol corresponding to the physical link in the first physical link group.

55. The method according to claim 51, wherein when the first physical link group comprises a first physical link, the switching a physical link used by a transmission path of the data receive end from the first physical link group to the second physical link group comprises:

switching, based on the first link switching notification message, the physical link used by the transmission path of the data receive end from the first physical link to a second physical link;

or in addition to the first physical link used by the transmission path of the data receive end, adding a second physical link based on the first link switching notification message, wherein the second physical link belongs to the second physical link group.

56. A data transmit end, comprising at least one processor and a memory, wherein

the memory is configured to store a program, an instruction, and data;

and

the processor invokes the program, the instruction, and the data in the memory, to perform the following steps;

obtaining a transmission path used for data transmission, wherein the transmission path currently uses a first physical link group to transmit the data, and the first physical link group comprises at least one physical link;

switching, based on a preconfigured link switching policy and transmission information of the transmission path, a physical link used by the transmission path from the first physical link group to a second physical link group, wherein the second physical link group comprises at least one physical link, the second physical link group and the first physical link group have one or more same physical links, or the second physical link group and the first physical link group have no same physical link, and the transmission information comprises information obtained by monitoring the first physical link group used by the transmission path;

sending a first link switching notification message to a data receive end, wherein the first link switching notification message comprises information indicating that the physical link used by the transmission path is switched from the first physical link group to the second physical link group; and

continuing transmitting the data through a transmission path that uses the second physical link group.

57. The data transmit end according to claim 56, wherein the processor is specifically configured to perform the following steps:

when the transmission path uses the first physical link group to transmit the data, obtaining path availability information based on a quantity of links and a quantity of paths that are used by the data transmit end that configures the transmission path, wherein the path availability information comprises information about whether the transmission path can continue to use the first physical link group; and

switching, based on the link switching policy and the path availability information, the physical link used by the transmission path from the first physical link group to the second physical link group.

58. The data transmit end according to claim 56, wherein the processor is further configured to perform the following steps:

before obtaining the transmission path used for data transmission, obtaining a content type and a data volume of the data; and

configuring the first physical link group for the transmission path based on the content type and the data volume.

59. The data transmit end according to claim 56, wherein the processor is further configured to perform the following steps:

obtaining authentication information of a first physical link in the first physical link group; and

if authentication of the first physical link succeeds, determining, based on the authentication information of the first physical link, that authentication of the physical link in the second physical link group between the data transmit end that configures the transmission path and the data receive end succeeds.

60. The data transmit end according to claim 56, wherein the processor is specifically configured to perform the following steps:

encapsulating the data by using a transport layer protocol corresponding to the physical link in the first physical link group; and

continuing transmitting, through the transmission path that uses the second physical link group, the data that is encapsulated by using the transport layer protocol.

61. The data transmit end according to claim 56, wherein the processor is further configured to perform the following steps:

after sending the first link switching notification message to the data receive end, receiving a first link switching feedback message sent by the data receive end; and

if the first link switching feedback message indicates that the data receive end cannot switch the first physical link group to the second physical link group, switching, based on the preconfigured link switching policy and the transmission information of the transmission path, the physical link used by the transmission path from the first physical link group to a third physical link group, wherein the third physical link group comprises at least one physical link, and the third physical link group and the first physical link group have one or more same physical links, or each physical link of the third physical link group is different from that of the first physical link group; and

sending a second link switching notification message to the data receive end;

or if the first link switching feedback message indicates that the data receive end successfully switches the first physical link group to the second physical link group, triggering execution of the following step;

continuing transmitting the data through the transmission path that uses the second physical link group.