CN107135549A - Connection establishment method, user equipment and network equipment - Google Patents

Abstract

Method for building up is connected the invention discloses one kind, including：Request is set up in user equipment (UE) generation connection；Connection, which is set up, carries the first information and the second information in request；The first information characterizes whether the UE possesses context；Context when UE described in second information representation possesses context extracts information；Request is set up in the connection for sending generation to the network equipment.The present invention also discloses a kind of UE and the network equipment.

Description

Connection establishment method, user equipment and network equipment

technical field

The present invention relates to the field of wireless communication, in particular to a connection establishment method, user equipment (UE, User Equipment) and network equipment.

Background technique

In the current 4G network, users use a fixed process to complete service triggering and sending behaviors. The specific process complies with the provisions of 3GPP TR 36.822. The whole process involves 18 pieces of signaling and 265 bytes of signaling overhead. In this way, on the one hand, it will lead to the extension of the communication delay, on the other hand, compared with the emerging small data packet service itself including Machine Type Communication (MTC, Machine Type Communication), the signaling burden is heavier, so it is difficult to Meet the needs of low-latency, low-overhead services.

Contents of the invention

In order to solve existing technical problems, embodiments of the present invention provide a connection establishment method, user equipment (UE, User Equipment) and network equipment.

In order to achieve the above object, the technical solution of the embodiment of the present invention is achieved in this way:

An embodiment of the present invention provides a method for establishing a connection, which is applied to a UE, and the method includes:

Generate a connection establishment request; the connection establishment request carries first information and second information; the first information indicates whether the UE has a context; the second information indicates context extraction information when the UE has a context;

Send the generated connection establishment request to the network device.

In the above solution, the first information is included in the second information.

In the above solution, the connection establishment request is a Radio Resource Control (RRC, Radio Resource Control) connection establishment request.

In the above solution, the generating the connection establishment request includes:

Adding a context activation (context activation) option in the connection establishment cause (establishmentcause) indication of the RRC connection establishment request; and the RRC connection establishment request includes a context ID;

The context activation option is the first information; the context ID is the second information.

In the above solution, the generating the connection establishment request includes:

Add an information element (IE, Information Element) to the RRC connection establishment request, the IE is used to indicate that the UE has a context; and the RRC connection establishment request includes a context ID;

The context ID is the second information.

In the above solution, the generating the connection establishment request includes:

Replace the UE ID with the context ID at the UE ID in the RRC connection establishment request, or add a context ID in the RRC connection establishment request.

In the above scheme, the method also includes:

receiving a connection establishment response sent by the network device;

Analyzing the connection establishment response to obtain fourth information;

The connection establishment response is further analyzed to obtain fifth information; the fourth information represents information required for scheduling, and the fifth information represents a conflict resolution result.

In the above scheme, the method also includes:

receiving a conflict resolution response sent by the network device;

Analyzing the conflict resolution response to obtain fourth information;

The conflict resolution response is further analyzed to obtain fifth information; the fourth information represents information required for scheduling, and the fifth information represents a conflict resolution result.

In the above scheme, after parsing the received corresponding response, after obtaining the fourth information and before obtaining the fifth information, the method further includes:

Analyzing the corresponding response to obtain third information;

When the third information indicates that the resource competition of the UE with the context succeeds, the corresponding response is further analyzed to obtain the fifth information.

In the above solution, the fourth information is a Temporary Cell Radio Network Temporary Identity (TC-RNTI); the fifth information is a UE identity and/or UE-related parameters that compete for resources.

The embodiment of the present invention also provides a method for establishing a connection, which is applied to a network device, and the method includes:

receiving a connection establishment request sent by the UE;

Analyzing the connection establishment request to obtain first information and second information; the first information indicates whether the UE has a context; the second information indicates context extraction information when the UE has a context;

judging whether the UE has context according to the first information;

When the judgment result indicates that the UE has a context, using the second information to acquire the context of the UE;

Establish a connection based on the acquired context of the UE.

In the above solution, the first information is included in the second information.

In the above solution, the connection establishment request is an RRC connection establishment request.

In the above solution, the parsing of the connection establishment request to obtain the first information and the second information includes:

obtaining a contextactivation option in the establishmentcause indication of the RRC connection establishment request; and obtaining a context ID in the RRC connection establishment request;

The context activation option is the first information; the context ID is the second information.

In the above solution, the parsing of the connection establishment request to obtain the first information and the second information includes:

Obtain an added IE in the RRC connection establishment request, the IE is used to indicate that the UE has a context; and obtain a context ID in the RRC connection establishment request;

The context ID is the second information.

In the above solution, the parsing of the connection establishment request to obtain the first information and the second information includes:

Obtain the context ID at the UE ID of the RRC connection establishment request, or obtain the context ID at the newly added IE of the RRC connection establishment request.

In the above scheme, the method also includes:

generating a connection establishment response; sending the connection establishment response to the UE;

The connection establishment response carries fourth information and fifth information; the fourth information represents information required for scheduling; the fifth information represents a conflict resolution result.

In the above scheme, the method also includes:

Generate a conflict resolution response; the conflict resolution response carries fourth information and fifth information; the fourth information represents information required for scheduling; the fifth information represents a conflict resolution result;

sending the conflict resolution response to the UE.

In the above solution, the corresponding generated response also carries third information; the third information indicates that the UE with the context or the UE without the context successfully competes for resources.

In the above solution, the fourth information is the TC-RNTI; the fifth information is the identity of the UE that has competed for resources and/or UE-related parameters.

An embodiment of the present invention further provides a UE, including: a first generating unit and a first sending unit; wherein,

The first generation unit is configured to generate a connection establishment request; the connection establishment request carries first information and second information; the first information indicates whether the UE has a context; the second information indicates that the UE has a Context extraction information at context time;

The first sending unit is configured to send the generated connection establishment request to the network device.

In the above solution, the UE further includes: a first receiving unit and a first parsing unit; wherein,

The first receiving unit is configured to receive a connection establishment response sent by the network device.

The first parsing unit is configured to parse the connection establishment response to obtain fourth information; and further parse the connection establishment response to obtain fifth information; the fourth information represents information required for scheduling, and the fifth The information represents the conflict resolution result.

In the above solution, the UE further includes: a third parsing unit; wherein,

The first receiving unit is further configured to receive a conflict resolution response sent by the network device;

The third parsing unit is configured to parse the conflict resolution response to obtain fourth information; further parse the conflict resolution response to obtain fifth information; the fourth information represents information required for scheduling, and the fifth The information represents the conflict resolution result.

In the above solution, the UE further includes: a second parsing unit for parsing the received corresponding response, after obtaining the fourth information and before obtaining the fifth information, parsing the received corresponding response to obtain the third information;

Correspondingly, when the third information indicates that the resource competition of the UE with the context succeeds, the corresponding parsing unit parses the corresponding response to obtain the fifth information.

The embodiment of the present invention also provides a network device, the device includes: a second receiving unit, a fourth parsing unit, a judging unit, an acquiring unit, and a connection establishing unit; wherein,

The second receiving unit is configured to receive a connection establishment request sent by the UE;

The fourth parsing unit is configured to parse the connection establishment request to obtain first information and second information; the first information indicates whether the UE has a context; the second information indicates when the UE has a context contextual extraction information;

The judging unit is configured to judge whether the UE has a context according to the first information;

The obtaining unit is configured to use the second information to obtain the context of the UE when the judgment result indicates that the UE has a context;

The connection establishment unit is configured to establish a connection based on the acquired context of the UE.

In the above solution, the device further includes: a second generating unit and a second sending unit; wherein,

The second generating unit is configured to generate a connection establishment response; the second sending unit is configured to send the connection establishment response to the UE;

The connection establishment response carries fourth information and fifth information; the fourth information represents information required for scheduling; the fifth information represents a conflict resolution result.

In the above solution, the device further includes a third generating unit and a third sending unit; wherein,

The third generating unit is configured to generate a conflict resolution response; the conflict resolution response carries fourth information and fifth information; the fourth information represents information required for scheduling; the fifth information represents a conflict resolution result;

The third sending unit is configured to send the conflict resolution response to the UE.

In the connection establishment method, UE and network equipment provided by the embodiments of the present invention, the UE generates a connection establishment request; the connection establishment request carries first information and second information; the first information indicates whether the UE has a context; the second The second information represents the context extraction information when the UE has the context; and sends the generated connection establishment request to the network device; after receiving the connection establishment request sent by the UE, the network device parses the connection establishment request to obtain the first One piece of information and second information; judging whether the UE has a context according to the first information; when the judgment result indicates that the UE has a context, using the second information to acquire the context of the UE; and based on the acquired UE context, and establish a connection. By carrying the first information and the second information in the connection establishment request, the UE with the context can promptly and effectively inform the network of its own context-related information, so that the network can establish a connection based on the context. Fast connection, in this way, can effectively reduce communication delay and signaling overhead.

Description of drawings

In the drawings (which are not necessarily drawn to scale), like reference numerals may describe like parts in different views. Similar reference numbers with different letter suffixes may indicate different instances of similar components. The drawings generally illustrate the various embodiments discussed herein, by way of example and not limitation.

FIG. 1 is a schematic diagram of a service trigger processing flow in the related art;

FIG. 2 is a schematic flow diagram of a method for establishing a connection at the UE side according to Embodiment 1 of the present invention;

3 is a schematic flowchart of a method for establishing a connection on the network device side according to Embodiment 1 of the present invention;

FIG. 4 is a schematic flowchart of a method for establishing a connection according to Embodiment 1 of the present invention;

FIG. 5 is a schematic flowchart of a method for implementing connection establishment in Embodiment 2 of the present invention;

FIG. 6 is a schematic flowchart of a method for implementing connection establishment in Embodiment 3 of the present invention;

FIG. 7 is a schematic flowchart of a method for implementing connection establishment in Embodiment 4 of the present invention;

FIG. 8 is a schematic structural diagram of a UE according to Embodiment 5 of the present invention;

FIG. 9 is a schematic structural diagram of a network device according to Embodiment 5 of the present invention;

FIG. 10 is a schematic structural diagram of a connection establishment system according to Embodiment 5 of the present invention;

FIG. 11 is a schematic diagram of a processing procedure after a network device receives UE context information according to an embodiment of the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Before describing the embodiment of the present invention, let's have a detailed understanding of the current service trigger processing flow.

FIG. 1 shows a schematic diagram of the processing flow of service triggering, that is, a schematic diagram of the processing flow of establishing a connection between the UE and the network side.

Combined with the flow described in FIG. 1 , the signaling required for the connection establishment process and the bytes corresponding to each signaling are summarized, as shown in Table 1.

Table 1

It can be seen from Table 1 that the entire process of the RRC connection process involves 18 pieces of signaling and 265 bytes of signaling overhead, so that, on the one hand, it will lead to an extension of the communication delay; on the other hand, the signaling burden heavier.

Therefore, how to reduce signaling overhead during service triggering is an urgent problem to be solved at present.

After careful analysis of the processing flow described in Figure 1, it can be concluded that many of these processes are for user context communication, including user identification, user synchronization, user access reasons, user terminal capabilities, and user security parameters , bearer type of the user, etc. If the user's context can be preserved, so as to reduce the signaling overhead and communication delay of user and network interaction during the connection establishment process, especially for solving the static business form of MTC with a single business type, it can be realized higher efficiency. At present, some relevant parties have proposed to save the signaling overhead and communication delay in the interaction between the user and the network by retaining the user context as much as possible.

Based on this, in various embodiments of the present invention: the UE generates a connection establishment request; the connection establishment request carries first information and second information; the first information indicates whether the UE has a context; the second information Characterize the context extraction information when the UE has a context; and send the generated connection establishment request to the network device; after receiving the connection establishment request sent by the UE, the network device parses the connection establishment request to obtain the first information and second information; judging whether the UE has a context according to the first information; when the judgment result indicates that the UE has a context, using the second information to acquire the context of the UE; and based on the acquired context of the UE ,establish connection.

Embodiment one

This embodiment provides a method for establishing a connection, which is applied to a UE.

FIG. 2 is a schematic flowchart of a method for establishing a connection at the UE side. As shown in Figure 2, the method includes the following steps:

Step 201: During the service triggering process, a connection establishment request is generated;

Here, the connection establishment request carries the first information and the second information.

The first information indicates whether the UE has a context; the second information indicates context extraction information when the UE has a context.

Wherein, the connection establishment request may be an RRC connection establishment request.

Based on this, in an embodiment, the specific implementation of this step may include:

The UE adds a contextactivation option to the establishmentcause indication of the RRC connection establishment request; and the RRC connection establishment request includes a context (content) identifier (ID, IDentity);

The context activation option is the first information; the content ID is the second information.

Specifically, the UE ID may be replaced by the contentID at the UE ID of the RRC connection establishment request; or, the content ID may also be added in the RRC connection establishment request.

Here, in actual application, the specific implementation manner of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request may be: directly fill in the content ID in the position of the UE ID of the RRC connection establishment request, Instead of filling in the UE ID; it may also be: directly replace the UE ID IE of the RRC connection establishment request with the content ID IE, and fill in the corresponding content ID in this position.

Adding the content ID in the RRC connection establishment request means: adding the content ID IE in the RRC connection establishment request, for example, the content ID can be added at the UE ID without occupying UE ID resources, and The content ID is added after the UE ID.

Wherein, in actual application, when the solution of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request is adopted, the length of the content ID may be different from the length of the UE ID specified in the protocol, in other words , the length of the content ID may be smaller than the length of the UE ID. In this case, the content ID only occupies part of the resource of the IE of the UE ID.

In another embodiment, the specific implementation of this step may include:

An IE is added to the RRC connection establishment request, the IE is used to indicate that the UE has a context; and the RRC connection establishment request includes a content ID; the content ID is second information.

Specifically, the UE ID may be replaced by the contentID at the UE ID of the RRC connection establishment request; or, the content ID may also be added in the RRC connection establishment request.

Here, in actual application, the specific implementation manner of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request may be: directly fill in the content ID in the position of the UE ID of the RRC connection establishment request, Instead of filling in the UE ID; it may also be: directly replace the UE ID IE of the RRC connection establishment request with the content ID IE, and fill in the corresponding content ID in this position.

Adding the content ID in the RRC connection establishment request means: adding the content ID IE in the RRC connection establishment request, for example, the content ID can be added at the UE ID without occupying the resources of the UE ID, and The content ID is added after the UE ID.

Wherein, in actual application, in order to save signaling byte overhead, the added IE is generally 1 bit. For example, 1 bit is added to the RRC connection establishment request. When the value is 1, it indicates that the UE has a context; when the value is 0, it indicates that the UE does not have a context.

In actual application, when using the scheme of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request, the length of the content ID may be different from the length of the UE ID specified in the protocol. In other words, the content The length of the ID may be smaller than the length of the UE ID. In this case, the content ID only occupies part of the resources of the UE ID.

In actual application, for the content ID, its expression can be the traditional Temporary Mobile Subscriber Identity (S-TMSI), (the length is 40 bits), or it can be the cell wireless network temporary ID assigned by the network to the UE before the service is triggered. The identifier (C-RNTI, Cell-Radio Network Temporary Identifier) may also be a new radio access network (RAN) ID spanning multiple cells.

Wherein, in actual application, the UE can directly use some existing ID as the content ID. For example, a certain ID established by the UE connection, such as S-TMSI, is used as the context ID of the UE and stored. Certainly, the network side and the UE store the same context ID.

In practical application, the first information may be included in the second information. Specifically, it may be implicitly included in the second information, and its specific implementation form may be in various ways. For example, through the format or value of the second information (such as: using different fields, More specifically, assuming that the second information is content ID, and the content ID occupies the resources of the UE ID IE, the protocol stipulates that the UE ID IE is 48 bits, and the first information can be represented by starting with 0 or 1. When the beginning is 1 indicates that the UE has the context, and the beginning of 0 indicates that the UE does not have the context) to implement the implicit inclusion of the first information in the second information.

Step 202: Send the generated connection establishment request to the network device.

Here, in actual application, after receiving the connection establishment request, the network device parses the connection establishment request to obtain the first information and the second information; and judges the UE according to the first information Whether the context is available; when the judgment result indicates that the UE has the context, using the second information to acquire the context of the UE; and establishing a connection based on the acquired context of the UE. Since the connection is established based on the context of the UE, during the process of establishing the connection, there is no need to communicate the context of the UE between network devices, so that the connection can be quickly established. In other words, based on the acquired context of the UE, a quick connection is established.

Correspondingly, after receiving the connection establishment request, the network device may return a connection establishment response to the UE.

In practical applications, the purpose of sending the connection establishment response is not only a response to the connection establishment request, but also: to resolve possible collisions without causing a greater delay, and at the same time save the UE from waiting The network device (such as a base station) background connection establishment (this delay is likely to be higher than the air interface delay) and the delay of re-initiating the access process.

Among them, the reason for sending the connection establishment response is: in actual application, as shown in Figure 1, in Msg1, the UE randomly selects the access preamble (Preamble) by itself, then, it may happen that two UEs just select the same In the case of Preamble; then for the two UEs, the same scheduling information will be received in msg2, and the same scheduling information will be used for transmission in msg3, thus causing transmission conflicts.

At the same time, for the traditional conflict resolution solution, the content carried by msg4 shown in Figure 1 includes: the UE ID or random value passed in msg3 + the establishment of the bearer and the configuration of the user medium access control (MAC) layer and physical (PHY) layer . However, since the application scenarios of the embodiments of the present invention are mainly aimed at UEs that already have contexts, it may be considered to directly activate existing bearers without communicating new bearers. Therefore, only the scheduled ID+UE ID of msg3 is needed for conflict resolution.

Based on this, in an embodiment, the method may also include:

receiving a connection establishment response sent by the network device;

Analyzing the connection establishment response to obtain fourth information;

After the fourth information is obtained, the connection establishment response is further analyzed to obtain fifth information; the fourth information represents information required for scheduling, and the fifth information represents a conflict resolution result.

Wherein, in an embodiment, after analyzing the connection establishment response and obtaining the fourth information, further parsing the connection establishment response before obtaining the fifth information, the method may further include:

Analyzing the connection establishment response to obtain third information;

When the third information indicates that the resource competition of the UE with the context succeeds, the connection establishment response is further analyzed to obtain the fifth information.

In actual application, a 1-bit identifier (third information) may be added to msg4 shown in FIG. 1 to indicate whether it is a UE with context or UE without context, and the contention for resources is successful. UE receives and chooses whether to further read msg4 according to its own state (whether it has context). Specifically, when the UE has the context, choose to further read msg4, that is, further parse the first response to obtain fourth information and fifth information; the fourth information represents the information required for scheduling, and the fifth information represents the conflict solve the result. When the UE does not have the context, it does not choose to read msg4 further.

In an embodiment, the conflict resolution result may also be sent separately, based on this, the method may further include:

The UE receives the conflict resolution response sent by the network device;

Analyzing the conflict resolution response to obtain fourth information;

After the fourth information is obtained, the conflict resolution response is further analyzed to obtain fifth information; the fourth information represents information required for scheduling, and the fifth information represents a conflict resolution result.

Wherein, in an embodiment, after the fourth information is obtained, the conflict resolution response is further analyzed, and before the fifth information is obtained, the method may further include:

Analyzing the conflict resolution response to obtain third information;

When the third information indicates that the resource competition of the UE with the context succeeds, the conflict resolution response is further analyzed to obtain the fifth information.

Wherein, the fourth information refers to a scheduling ID; the fourth information may be a TC-RNTI; and the fifth information is a UE identifier and/or a UE-related parameter that has competed for a resource.

In practical application, the English expression of the UE identity competing for the resource may use Resolution ID; the Resolution ID refers to the UE ID carried in the msg3 message. The UE-related parameters refer to UE-related parameters carried in the msg3 message.

It should be noted that in actual application, if the UE does not have a context, a traditional connection establishment request is generated, that is, the connection establishment request does not carry the first information and the second information.

Then, after the network device receives the connection establishment request, it will establish a complete connection including context establishment.

The embodiment of the present invention also provides a method for establishing a connection, which is applied to network equipment.

Wherein, the network device refers to: a centralized decision-making entity on the wireless network side, and this centralized decision-making entity is related to a future wireless network architecture. For example, when the bearer is established through an RRC connection, the centralized decision-making entity is an RRC function body, which can be located in the base station, or a new node different from the base station in an emerging network architecture.

FIG. 3 is a schematic flowchart of a method for establishing a connection on a network device side. As shown in Figure 3, the method includes the following steps:

Step 301: Receive a connection establishment request sent by a UE;

Here, the connection establishment request may be an RRC connection establishment request.

Step 302: Analyzing the connection establishment request to obtain first information and second information;

Here, the first information indicates whether the UE has a context; the second information indicates context extraction information when the UE has a context.

When the connection establishment request is an RRC connection establishment request, in one embodiment, the specific implementation of this step may include:

The network device obtains a context activation option in the establishmentcause indication of the RRC connection establishment request; and obtains a content ID in the RRC connection establishment request;

The context activation option is the first information; the content ID is the second information.

Specifically, the network device obtains the content ID at the UE ID of the RRC connection establishment request, or obtains the content ID at the newly added IE of the RRC connection establishment request.

Here, in actual application, the UE may directly fill in the content ID in the IE position of the UE ID of the RRC connection establishment request instead of filling in the UE ID; it may also be: the UE ID of the RRC connection establishment request The IE is directly replaced by the content ID IE, and the corresponding content ID is filled in the position. The network device obtains the contentID at the UE ID of the RRC connection establishment request, so that the network device can receive the content ID in the RRC connection establishment request The content ID is obtained from this IE based on the UE ID.

The acquisition of the content ID at the newly added IE in the RRC connection establishment request refers to: the UE adds the IE content ID in the RRC connection establishment request. For example, the content ID can be added at the UE ID. The resource of UE ID is occupied, but the content ID is added after the UE ID, so that the network device can obtain the content ID at the UE ID IE of the RRC connection establishment request.

Wherein, in actual application, when the solution of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request is adopted, the length of the content ID may be different from the length of the UE ID specified in the protocol, in other words , the length of the content ID may be smaller than the length of the UE ID. In this case, the content ID only occupies part of the resources of the UE ID.

When the connection establishment request is an RRC connection establishment request, in another embodiment, the specific implementation of this step may include:

The network device obtains an added IE in the RRC connection establishment request, and the IE is used to indicate that the UE has a context; and obtains a content ID in the RRC connection establishment request;

The content ID is the second information.

Specifically, the network device obtains the content ID from the UE ID in the RRC connection establishment request, or obtains the content ID from an IE newly added in the RRC connection establishment request.

Here, in actual application, the UE may replace the UE ID with the content ID at the UE ID of the RRC connection establishment request. Fill in the content ID instead of the UE ID; it can also be: directly replace the IE of the UE ID of the RRC connection establishment request with the IE of the content ID, and fill in the corresponding content ID in this position, so that the network device The content ID can be obtained at the UE ID IE of the RRC connection establishment request.

The acquisition of the content ID at the newly added IE of the RRC connection establishment request refers to: the UE adds the content ID IE in the RRC connection establishment request, for example, the content ID can be added at the UE ID without occupying Instead, the content ID is added after the UE ID, so that the network device can obtain the content ID at the IE of the UE ID of the RRC connection establishment request.

Wherein, in actual application, when the solution of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request is adopted, the length of the content ID may be different from the length of the UE ID specified in the protocol, in other words , the length of the content ID may be smaller than the length of the UE ID. In this case, the content ID only occupies part of the resources of the UE ID.

Wherein, in actual application, in order to save signaling byte overhead, the added IE is generally 1 bit. For example, 1 bit is added to the RRC connection establishment request. When the value is 1, it indicates that the UE has a context; when the value is 0, it indicates that the UE does not have a context.

In actual application, when using the scheme of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request, the length of the content ID may be different from the length of the UE ID specified in the protocol. In other words, the content The length of the ID may be smaller than the length of the UE ID. In this case, the content ID only occupies part of the resources of the UE ID.

In actual application, for the content ID, its expression can be the traditional S-TMSI (length is 40bit), or it can be the C-RNTI allocated to the UE by the network before the service is triggered, or it can be a new cross- RAN ID of multiple cells.

Wherein, in actual application, the UE can directly use some existing ID as the content ID. For example, a certain ID established by the UE connection, such as S-TMSI, is used as the context ID of the UE and stored. Certainly, the network side and the UE store the same context ID.

In practical application, the first information may be included in the second information. Specifically, it may be implicitly included in the second information, and its specific implementation form may be in various ways. For example, through the format or value of the second information (such as: using different fields, More specifically, assuming that the second information is content ID, and the content ID occupies the resources of the UE ID IE, the protocol stipulates that the UE ID IE is 48 bits, and the first information can be represented by starting with 0 or 1. When the beginning is 1 indicates that the UE has the context, and the beginning of 0 indicates that the UE does not have the context) to implement the implicit inclusion of the first information in the second information.

Step 303: judging whether the UE has a context according to the first information;

Step 304: when the judgment result indicates that the UE has a context, using the second information to acquire the context of the UE;

Here, in actual application, the network device may use the second information to acquire the context of the UE from other network elements storing the context information of the UE.

When the judgment result indicates that the UE does not have the context, the network device establishes a complete connection including context establishment.

Step 305: Establish a connection based on the acquired context of the UE.

Here, in actual application, after receiving the connection establishment request, the network device parses the connection establishment request to obtain the first information and the second information; and judges the UE according to the first information Whether the context is available; when the judgment result indicates that the UE has the context, using the second information to acquire the context of the UE; and establishing a connection based on the acquired context of the UE. Since the connection is established based on the context of the UE, during the process of establishing the connection, there is no need to communicate the context of the UE between network devices, so that the connection can be quickly established. In other words, based on the acquired context of the UE, a quick connection is established.

Correspondingly, after receiving the connection establishment request, the network device may return a connection establishment response to the UE.

In practical applications, the purpose of sending the connection establishment response is not only a response to the connection establishment request, but also: to resolve possible collisions without causing a greater delay, and at the same time save the UE from waiting The network device (such as a base station) background connection establishment (this delay is likely to be higher than the air interface delay) and the delay of re-initiating the access process.

Among them, the reason for sending the connection establishment response is: in actual application, as shown in Figure 1, in Msg1, the UE randomly selects the access preamble (Preamble) by itself, then, it may happen that two UEs just select the same In the case of Preamble; then for the two UEs, the same scheduling information will be received in msg2, and the same scheduling information will be used for transmission in msg3, thus causing transmission conflicts.

At the same time, for the traditional conflict resolution solution, the content carried by msg4 shown in Figure 1 includes: UE ID or random value delivered in msg3 + bearer establishment and user MAC layer and PHY layer configuration. However, since the application scenarios of the embodiments of the present invention are mainly aimed at UEs that already have contexts, it may be considered to directly activate existing bearers without communicating new bearers. Therefore, only the scheduled ID+UE ID of msg3 is needed for conflict resolution.

Based on this, in an embodiment, the method may also include:

The network device generates a connection establishment response; the connection establishment response carries fourth information and fifth information; the fourth information represents information required for scheduling; the fifth information represents a conflict resolution result;

sending the connection establishment response to the UE.

Here, in an embodiment, the connection establishment response further carries third information; the third information indicates that the UE with the context or the UE without the context succeeds in resource competition.

Wherein, in actual application, a 1-bit identifier (third information) may be added to msg4 shown in FIG. 1 to indicate whether it is a UE with context or a UE without context, and the contention for resources is successful. UE receives and chooses whether to further read msg4 according to its own state (whether it has context). Specifically, when the UE has the context, choose to further read msg4, that is, further parse the first response to obtain fourth information and fifth information; the fourth information represents the information required for scheduling, and the fifth information represents the conflict solve the result. When the UE does not have the context, it does not choose to read msg4 further.

In an embodiment, the conflict resolution result may also be sent separately, based on this, the method may further include:

Generate a conflict resolution response; the conflict resolution response carries fourth information and fifth information; the fourth information represents information required for scheduling; the fifth information represents a conflict resolution result;

sending the conflict resolution response to the UE.

Here, in an embodiment, the conflict resolution response also carries third information; the third information indicates that the UE with the context or the UE without the context successfully competes for resources.

Wherein, the fourth information refers to a scheduling ID; the fourth information may be a TC-RNTI; and the fifth information is a UE identifier and/or a UE-related parameter that has competed for a resource.

In practical application, the English expression of the UE identity competing for the resource may use Resolution ID; the Resolution ID refers to the UE ID carried in the msg3 message. The UE-related parameters refer to UE-related parameters carried in the msg3 message.

This embodiment also provides a method for establishing a connection, as shown in Figure 4, the method includes the following steps:

Step 401: During the service triggering process, the UE generates a connection establishment request; and sends the generated connection establishment request to the network device;

Here, the connection establishment request carries first information and second information; the first information indicates whether the UE has a context; the second information indicates context extraction information when the UE has a context.

Step 402: After receiving the connection establishment request sent by the UE, the network device parses the connection establishment request to obtain first information and second information; and judge whether the UE has a context according to the first information;

Step 403: When the judgment result indicates that the UE has a context, the network device obtains the UE context by using the second information; and establishes a connection based on the obtained UE context.

Here, it should be noted that: the specific processing procedures of the UE and the network device have been described in detail above, and will not be repeated here.

In the connection establishment method provided by the embodiment of the present invention, during the service triggering process, the UE generates a connection establishment request; the connection establishment request carries first information and second information; the first information indicates whether the UE has a context; the second The second information represents the context extraction information when the UE has the context; and sends the generated connection establishment request to the network device; after receiving the connection establishment request sent by the UE, the network device parses the connection establishment request to obtain the first One piece of information and second information; judging whether the UE has a context according to the first information; when the judgment result indicates that the UE has a context, using the second information to acquire the context of the UE; and based on the acquired UE context, and establish a connection. By carrying the first information and the second information in the connection establishment request, the UE with the context can promptly and effectively inform the network of its own context-related information, so that the network can establish a connection based on the context. Fast connection, in this way, can effectively reduce communication delay and signaling overhead.

In addition, the network device generates a connection establishment response; the connection establishment response carries fourth information and fifth information; the fourth information represents information required for scheduling; the fifth information represents a conflict resolution result; to the UE Send the connection establishment response; or, the network device generates a conflict resolution response; the conflict resolution response carries fourth information and fifth information; the fourth information represents the information required for scheduling; the fifth information represents the conflict Solution result: the conflict resolution response is sent to the UE. Since the UE is a UE with a context, it only needs to activate the existing bearer during the connection establishment process and does not need to create a new bearer. Therefore, the The connection establishment response or the conflict resolution response only needs to carry the fourth information and the fifth information to resolve the conflict. In this way, the signaling overhead is further reduced.

Embodiment two

Based on the first embodiment, this embodiment describes in detail how to realize the process of establishing a connection.

The implementation method for establishing a connection in this embodiment, as shown in Figure 5, includes the following steps:

Step 501: When the service is triggered, the UE sends a Msg1 message to the new base station, that is, sends a random access request to inform the random access preamble;

Step 502: After receiving the message, the new base station returns a Msg2 message to the UE, that is, returns a random access response;

Step 503: After receiving the message, the UE sends a Msg3 message to the new base station, that is, an RRC connection establishment request;

Here, the UE carrying 1 bit in the Msg3 message has a context indication or a data bearer activation indication (including a context activation option); the Msg3 message also carries a content ID.

Step 504: After receiving the Msg3 message, the new base station returns the Msg4 message to the UE;

Here, the Msg4 message carries TC-RNTI and Resolution ID.

Wherein, the Resolution ID refers to the UE ID carried in the msg3 message.

In actual application, step 504 is an optional step.

Step 505: After receiving the Msg3 message, the new base station determines that the UE is a UE with context, and extracts the context of the UE from the old base station that stores the UE context according to the content ID;

Here, in actual application, steps 504 and 505 are executed sequentially. Step 504 may be executed first, and then step 505 may be executed;

Step 506: After receiving the message, the old base station transfers the context of the UE to the new base station;

Step 507: After receiving the context of the UE, the new base station sends a path switching request to a Mobility Management Entity (MME, Mobility Management Entity);

Step 508: After receiving the request, the MME sends a data bearer modification request to the service control gateway;

Here, the purpose of executing this step is to activate a default or stored data bearer.

Step 509: After receiving the request, the service control gateway returns a data bearer modification confirmation to the MME;

Step 510: After receiving the confirmation, the MME sends a path switching confirmation to the new base station;

Step 511: After receiving the confirmation, the new base station sends a link activation confirmation to the UE;

Here, steps 507-511 are the process of establishing a quick connection.

After step 511 is completed, data transmission can be performed between the UE and the new base station.

It can be seen from the above description that in this embodiment, the context of the UE is stored in different sites in a distributed manner. By carrying the context indication in Msg3, communication processes with or without context are distinguished. When there is a context, quickly activate the context and the corresponding wireless link to communicate quickly. It can be considered as a context-adaptive connection process, which has the advantages of high efficiency and self-adaptation.

If the stations are in the same cell and the UE loses synchronization, the solution of this embodiment is compared with the traditional asynchronous connection process when the UE retains the context. The UE is allowed to obtain the corresponding context across cells and quickly establish a connection; compared with handover, the user does not need to spend a lot of signaling for context transfer, but transfers on demand, thus saving network overhead.

In addition, Msg4 only carries TC-RNTI and Resolution ID to resolve conflicts, thus further reducing signaling overhead.

Embodiment Three

Based on the first embodiment, this embodiment describes in detail how to realize the process of establishing a connection.

The application scenario of this embodiment is: the wireless network side has a centralized wireless control unit, the context can be stored in this wireless control unit uniformly, and when the UE needs it, apply to the wireless control unit to obtain the context and path configuration.

The implementation method for establishing a connection in this embodiment, as shown in Figure 6, includes the following steps:

Step 601: When the service is triggered, the UE sends a Msg1 message to the new base station, that is, sends a random access request to inform the random access preamble;

Step 602: After receiving the message, the new base station returns a Msg2 message to the UE, that is, returns a random access response;

Step 603: After receiving the message, the UE sends a Msg3 message to the new base station, that is, an RRC connection establishment request;

Here, the UE carrying 1 bit in the Msg3 message has a context indication or a data bearer activation indication (including a context activation option); the Msg3 message also carries a content ID.

Step 604: After receiving the Msg3 message, the new base station returns the Msg4 message to the UE;

Here, the Msg4 message carries TC-RNTI and Resolution ID.

Wherein, the Resolution ID refers to the UE ID carried in the msg3 message.

In actual application, step 604 is an optional step.

Step 605: After receiving the Msg3 message, the new base station determines that the UE is a UE with context, and sends a bearer activation request to the wireless controller/network controller storing the UE context according to the content ID;

Here, the function of the bearer activation request is to apply for acquiring context and path configuration.

Step 606: After receiving the request, the wireless controller/network controller sends a data bearer activation request/modification request to the service control gateway;

Here, the purpose of executing this step is to activate a default or stored data bearer.

Step 607: After receiving the request, the service control gateway returns a data bearer activation confirmation/modification confirmation to the wireless controller/network controller;

Step 608: After receiving the confirmation, the wireless controller/network controller sends a bearer activation confirmation to the new base station;

Step 609: After receiving the confirmation, the new base station sends a link activation confirmation to the UE;

Here, steps 605-609 are the process of establishing a quick connection.

After step 609 is completed, data transmission can be performed between the UE and the new base station.

It can be seen from the above description that in this embodiment, the context of the UE is stored in a centralized wireless control unit in a distributed manner. By carrying the context indication in Msg3, the communication process with or without context is distinguished. When there is a context, quickly activate the context and the corresponding wireless link to communicate quickly. It can be considered as a context-adaptive connection process, which has the advantages of high efficiency and self-adaptation.

If the stations are in the same cell and the UE loses synchronization, the solution of this embodiment is compared with the traditional asynchronous connection process when the UE retains the context. The UE is allowed to obtain the corresponding context across cells and quickly establish a connection; compared with handover, the user does not need to spend a lot of signaling for context transfer, but transfers on demand, thus saving network overhead.

In addition, Msg4 only carries TC-RNTI and Resolution ID to resolve conflicts, thus further reducing signaling overhead.

Embodiment Four

Based on the first embodiment, this embodiment describes in detail how to realize the process of establishing a connection.

The application scenario of this embodiment is: macro and micro heterogeneous scenarios, and the macro base station stores the context; the wireless controller is carried by the macro base station.

The implementation method for establishing a connection in this embodiment, as shown in Figure 7, includes the following steps:

Step 701: When the service is triggered, the UE sends a Msg1 message to the new base station, that is, sends a random access request to inform the random access preamble;

Step 702: After receiving the message, the new base station returns a Msg2 message to the UE, that is, returns a random access response;

Step 703: After receiving the message, the UE sends a Msg3 message to the new base station, that is, an RRC connection establishment request;

Here, the UE carrying 1 bit in the Msg3 message has a context indication or a data bearer activation indication (including a context activation option); the Msg3 message also carries a content ID.

Step 704: After receiving the Msg3 message, the new base station returns the Msg4 message to the UE;

Here, the Msg4 message carries TC-RNTI and Resolution ID.

Wherein, the Resolution ID refers to the UE ID carried in the msg3 message.

In actual application, step 704 is an optional step.

Step 705: After receiving the Msg3 message, the new base station determines that the UE is a UE with context, and sends a bearer activation request to the new radio controller/network controller;

Here, the content ID is carried in the request.

Here, in actual application, steps 704 and 705 are executed sequentially. Step 704 may be executed first, and then step 705 may be executed;

Step 706: After receiving the request, the wireless controller/network controller extracts the context of the UE from the old wireless controller/network controller storing the UE context according to the content ID;

Step 707: After receiving the message, the old wireless controller/network controller transfers the context of the UE to the new and old wireless controller/network controller;

Step 708: After receiving the context of the UE, the old and new wireless controllers/network controllers send a data bearer modification request to the service control gateway;

Here, the purpose of executing this step is to activate a default or stored data bearer.

Step 709: After receiving the request, the service control gateway returns a data bearer modification confirmation to the new wireless controller/network controller;

Step 710: After receiving the confirmation, the new radio controller/network controller sends a bearer activation confirmation to the new base station;

Step 711: After receiving the confirmation, the new base station sends a link activation confirmation to the UE;

Here, steps 708-711 are the process of establishing a quick connection.

After step 711 is completed, data transmission can be performed between the UE and the new base station.

It can be seen from the above description that in this embodiment, the context of the UE is stored in different sites in a distributed manner. By carrying the context indication in Msg3, communication processes with or without context are distinguished. When there is a context, quickly activate the context and the corresponding wireless link to communicate quickly. It can be considered as a context-adaptive connection process, which has the advantages of high efficiency and self-adaptation.

If the stations are in the same cell and the UE loses synchronization, the solution of this embodiment is compared with the traditional asynchronous connection process when the UE retains the context. The UE is allowed to obtain the corresponding context across cells and quickly establish a connection; compared with handover, the user does not need to spend a lot of signaling for context transfer, but transfers on demand, thus saving network overhead.

In addition, Msg4 only carries TC-RNTI and Resolution ID to resolve conflicts, thus further reducing signaling overhead.

Embodiment five

In order to implement the method of the embodiment of the present invention, this embodiment provides a UE, as shown in FIG. 8, the UE includes: a first generating unit 81 and a first sending unit 82; wherein,

The first generation unit 81 is used to generate a connection establishment request during the service triggering process; the connection establishment request carries first information and second information; the first information indicates whether the UE has a context; the second The information represents the context extraction information when the UE has the context;

The first sending unit 82 is configured to send the generated connection establishment request to the network device.

Wherein, the connection establishment request may be an RRC connection establishment request.

Based on this, in an embodiment, the first generating unit 81 is specifically configured to:

Add a contextactivation option to the establishmentcause indication of the RRC connection establishment request; and the RRC connection establishment request includes a content ID;

The context activation option is the first information; the content ID is the second information.

Specifically, the first generating unit 81 may replace the UE ID with the content ID at the UE ID in the RRC connection establishment request; or, may also add a content ID in the RRC connection establishment request.

Here, in actual application, the specific implementation manner of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request may be: directly fill in the content ID in the position of the UE ID of the RRC connection establishment request, Instead of filling in the UE ID; it may also be: directly replace the UE ID IE of the RRC connection establishment request with the content ID IE, and fill in the corresponding content ID in this position.

Adding the content ID in the RRC connection establishment request means: adding the content ID IE in the RRC connection establishment request, for example, the content ID can be added at the UE ID without occupying UE ID resources, and The content ID is added after the UE ID.

Wherein, in actual application, when the UE ID is used to replace the content ID at the UE ID of the RRC connection establishment request, the length of the content ID may be different from the length of the UE ID specified in the protocol. In other words, The length of the content ID may be smaller than the length of the UE ID. In this case, the content ID only occupies part of the resources of the UE ID.

In another embodiment, the first generating unit 81 is specifically configured to:

Add an IE to the RRC connection establishment request, the IE is used to indicate that the UE has a context; and the RRC connection establishment request includes a content ID;

The content ID is the second information.

Specifically, the generating unit 81 may replace the content ID with the UE ID at the UE ID in the RRC connection establishment request; or, may also add a contentID in the RRC connection establishment request.

Here, in actual application, the specific implementation manner of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request may be: directly fill in the content ID in the position of the UE ID of the RRC connection establishment request, Instead of filling in the UE ID; it may also be: directly replace the UE ID IE of the RRC connection establishment request with the content ID IE, and fill in the corresponding content ID in this position.

Adding the content ID in the RRC connection establishment request means: adding the content ID IE in the RRC connection establishment request, for example, the content ID can be added at the UE ID without occupying UE ID resources, and The content ID is added after the UE ID.

Wherein, in actual application, in order to save signaling byte overhead, the added IE is generally 1 bit. For example, 1 bit is added to the RRC connection establishment request. When the value is 1, it indicates that the UE has a context; when the value is 0, it indicates that the UE does not have a context.

In actual application, when the UE ID is used to replace the content ID at the UE ID of the RRC connection establishment request, the length of the content ID may be different from the length of the UE ID specified in the protocol. In other words, the content ID The length of the contentID may be smaller than the length of the UE ID. In this case, the contentID only occupies part of the resources of the UE ID.

In actual application, for the content ID, its expression can be the traditional S-TMSI (length is 40bit), or it can be the C-RNTI allocated to the UE by the network before the service is triggered, or it can be a new cross- RAN ID of multiple cells.

In practical applications, the first generation unit 81 may directly use an existing ID as the content ID. For example, use an ID established for UE connection, such as S-TMSI, as the context ID of the UE and storage. Certainly, the network side and the UE store the same context ID.

In practical application, the first information may be included in the second information. Specifically, it may be implicitly included in the second information, and its specific implementation form may be in various ways. For example, through the format or value of the second information (such as: using different fields, More specifically, assuming that the second information is content ID, and the content ID occupies the resources of the UE ID IE, the protocol stipulates that the UE ID IE is 48 bits, and the first information can be represented by starting with 0 or 1. When the beginning is 1 indicates that the UE has the context, and the beginning of 0 indicates that the UE does not have the context) to implement the implicit inclusion of the first information in the second information.

In actual application, after receiving the connection establishment request, the network device parses the connection establishment request to obtain the first information and the second information; and judges whether the UE has Context: when the judging result indicates that the UE has a context, using the second information to obtain the UE's context; and establishing a connection based on the obtained UE's context. Since the connection is established based on the context of the UE, during the process of establishing the connection, there is no need to communicate the context of the UE between network devices, so that the connection can be quickly established. In other words, based on the acquired context of the UE, a quick connection is established.

Correspondingly, after receiving the connection establishment request, the network device may return a connection establishment response to the UE.

In practical applications, in addition to being a response to the connection establishment request, the purpose of sending the connection establishment response is: to resolve possible collisions without causing greater delay, and at the same time save the UE from waiting The network device (such as a base station) background connection establishment (this delay is likely to be higher than the air interface delay) and the delay of re-initiating the access process.

Among them, the reason for sending the connection establishment response is: in actual application, as shown in Figure 1, in Msg1, the UE randomly selects the Preamble by itself, then, it may happen that two UEs just select the same Preamble; then For these two UEs, the same scheduling information will be received in msg2, and the same scheduling information will be used for transmission in msg3, thus causing a transmission conflict.

At the same time, for the traditional conflict resolution solution, the content carried by msg4 shown in FIG. 1 includes: UE ID or random value transmitted in msg3 + establishment of bearer and configuration of MAC layer and PHY layer. However, since the application scenarios of the embodiments of the present invention are mainly aimed at UEs that already have contexts, it may be considered to directly activate existing bearers without communicating new bearers. Therefore, only the scheduled ID+UE ID of msg3 is needed for conflict resolution.

Based on this, in an embodiment, the UE may further include: a first receiving unit, configured to receive the connection establishment response sent by the network device.

The UE may also include: a first parsing unit and a second parsing unit; wherein,

The first receiving unit is configured to receive a connection establishment response sent by the network device;

The first parsing unit is configured to parse the connection establishment response to obtain fourth information; and after obtaining the fourth information, further parse the connection establishment response to obtain fifth information; the fourth information represents the dispatching station required information, and the fifth information represents a conflict resolution result.

The UE may further include: a second parsing unit, configured to further parse the connection establishment response after obtaining the fourth information, and parse the connection establishment response before obtaining the fifth information to obtain third information;

Correspondingly, the first parsing unit is configured to further parse the connection establishment response to obtain fifth information when the third information indicates that the resource competition of the UE with the context succeeds.

Wherein, in actual application, a 1-bit identifier (third information) may be added to msg4 shown in FIG. 1 to indicate whether it is a UE with context or a UE without context, and the contention for resources is successful. UE receives and chooses whether to further read msg4 according to its own state (whether it has context). Specifically, when the UE has the context, choose to further read msg4, that is, further parse the first response to obtain fourth information and fifth information; the fourth information represents the information required for scheduling, and the fifth information represents the conflict solve the result. When the UE does not have the context, it does not choose to read msg4 further.

In an embodiment, the conflict resolution result may also be sent separately, based on this, the UE may further include: a third parsing unit; wherein,

The first receiving unit is further configured to receive a conflict resolution response sent by the network device;

The third parsing unit is configured to parse the conflict resolution response to obtain fourth information; and after obtaining the fourth information, further parse the conflict resolution response to obtain fifth information; the fourth information represents the scheduling required information, and the fifth information represents a conflict resolution result.

Wherein, for the above situation, the second parsing unit is configured to parse the conflict resolution response to obtain third information;

Correspondingly, the third parsing unit is configured to further parse the conflict resolution response to obtain fifth information when the third information indicates that the resource competition of the UE with the context succeeds.

Wherein, the fourth information refers to a scheduling ID; the fourth information may be a TC-RNTI; and the fifth information is a UE identifier and/or a UE-related parameter that has competed for a resource.

In practical application, the English expression of the UE identity competing for the resource may use Resolution ID; the Resolution ID refers to the UE ID carried in the msg3 message. The UE-related parameters refer to UE-related parameters carried in the msg3 message.

It should be noted that in actual application, if the UE is a UE without context, the first generation unit 81 generates a traditional connection establishment request, that is, the connection establishment request does not carry the first information and the second information. Two information.

Then, after the network device receives the connection establishment request, it will establish a complete connection including context establishment.

In actual application, the first generation unit 81, the first analysis unit, the second analysis unit and the third analysis unit may be composed of a central processing unit (CPU, Central Processing Unit), a microprocessor (MCU, Micro Control Unit) in the UE ), a digital signal processor (DSP, Digital Signal Processor) or a programmable logic array (FPGA, Field-Programmable Gate Array); the first sending unit 82 and the first receiving unit can be implemented by a transceiver in the UE.

In order to implement the method of the embodiment of the present invention, this embodiment also provides a network device, as shown in FIG. A connection establishment unit 95; wherein,

The second receiving unit 94 is configured to receive a connection establishment request sent by the UE;

The fourth parsing unit 92 is configured to parse the connection establishment request to obtain first information and second information; the first information indicates whether the UE has a context; the second information indicates that the UE has a context contextual extraction information;

The judging unit 93 is configured to judge whether the UE has a context according to the first information;

The obtaining unit 94 is configured to use the second information to obtain the context of the UE when the judgment result indicates that the UE has a context;

The connection establishing unit 95 is configured to establish a connection based on the acquired context of the UE.

Wherein, the network device refers to: a centralized decision-making entity on the wireless network side, and this centralized decision-making entity is related to a future wireless network architecture. For example, when the bearer is established through an RRC connection, the centralized decision-making entity is an RRC function body, which can be located in the base station, or a new node different from the base station in an emerging network architecture.

The connection establishment request may be an RRC connection establishment request.

Based on this, in an embodiment, the fourth parsing unit 92 is specifically configured to:

Obtain the contextactivation option in the establishmentcause indication of the RRC connection establishment request; and obtain the content ID in the RRC connection establishment request;

The context activation option is the first information; the content ID is the second information.

Specifically, the third parsing unit 92 may obtain the content ID at the UE ID of the RRC connection establishment request, or obtain the content ID at the newly added IE of the RRC connection establishment request.

Here, in actual application, the UE may directly fill in the content ID in the IE position of the UE ID of the RRC connection establishment request instead of filling in the UE ID; it may also be: the UE ID of the RRC connection establishment request The IE is directly replaced by the IE content ID, and the corresponding content ID is filled in the position. The network device obtains the contentID at the UE ID of the RRC connection establishment request, so that the third parsing unit 92 can The content ID is obtained from the IE of the UE ID of the connection establishment request.

The acquisition of the content ID at the newly added IE in the RRC connection establishment request refers to: the UE adds the IE content ID in the RRC connection establishment request. For example, the content ID can be added at the UE ID. Occupying the resources of the UE ID, the content ID is added after the UE ID, so that the third parsing unit 92 can obtain the content ID at the newly added IE in the RRC connection establishment request.

Wherein, in actual application, when the solution of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request is adopted, the length of the content ID may be different from the length of the UE ID specified in the protocol, in other words , the length of the content ID may be smaller than the length of the UE ID. In this case, the content ID only occupies part of the resources of the UE ID.

When the connection establishment request is an RRC connection establishment request, in another embodiment, the fourth parsing unit 92 is specifically configured to:

The network device obtains an added IE in the RRC connection establishment request, and the IE is used to indicate whether the UE has a context; and obtains a content ID in the RRC connection establishment request;

The context ID is the second information.

Specifically, the fourth parsing unit 92 may obtain the content ID at the UE ID of the RRC connection establishment request, or obtain the content ID at an ID added to the UE ID of the RRC connection establishment request.

Here, in actual application, the UE may replace the UE ID with the content ID at the UE ID of the RRC connection establishment request. Fill in the content ID instead of the UE ID; it can also be: directly replace the IE of the UE ID of the RRC connection establishment request with the IE of the content ID, and fill in the corresponding content ID in this position, so that the third The parsing unit 92 may obtain the content ID from the UE ID IE of the RRC connection establishment request.

The acquisition of the content ID at the newly added IE in the RRC connection establishment request refers to: not occupying the resources of the UE ID, but adding the content ID after the UE ID so that the third parsing unit 92 can Obtain the content ID from the newly added IE in the above RRC connection establishment request.

Wherein, in actual application, when the solution of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request is adopted, the length of the content ID may be different from the length of the UE ID specified in the protocol, in other words , the length of the content ID may be smaller than the length of the UE ID. In this case, the content ID only occupies part of the resources of the UE ID.

Wherein, in actual application, in order to save signaling byte overhead, the added IE is generally 1 bit. For example, 1 bit is added to the RRC connection establishment request. When the value is 1, it indicates that the UE has a context; when the value is 0, it indicates that the UE does not have a context.

In actual application, when using the scheme of replacing the UE ID with the content ID at the UE ID of the RRC connection establishment request, the length of the content ID may be different from the length of the UE ID specified in the protocol. In other words, the content The length of the ID may be smaller than the length of the UE ID. In this case, the content ID only occupies part of the resources of the UE ID.

In actual application, for the content ID, its expression can be the traditional S-TMSI (length is 40bit), or it can be the C-RNTI allocated to the UE by the network before the service is triggered, or it can be a new cross- RAN ID of multiple cells.

Wherein, in actual application, the UE can directly use some existing ID as the content ID. For example, a certain ID established by the UE connection, such as S-TMSI, is used as the context ID of the UE and stored. Certainly, the network side and the UE store the same context ID.

In practical application, the first information may be included in the second information. Specifically, it may be implicitly included in the second information, and its specific implementation form may be in various ways. For example, through the format or value of the second information (such as: using different fields, More specifically, assuming that the second information is content ID, and the content ID occupies the resources of the UE ID IE, the protocol stipulates that the UE ID IE is 48 bits, and the first information can be represented by starting with 0 or 1. When the beginning is 1 indicates that the UE has the context, and the beginning of 0 indicates that the UE does not have the context) to implement the implicit inclusion of the first information in the second information.

Here, in actual application, the obtaining unit 94 may use the second information to obtain the context of the UE from other network elements that store the context information of the UE.

When the judgment result indicates that the UE does not have the context, the network device establishes a complete connection including context establishment.

In actual application, after the second receiving unit 91 receives the connection establishment request, the fourth parsing unit 91 parses the connection establishment request to obtain the first information and the second information; The judging unit 93 judges whether the UE has a context according to the first information; when the judging result indicates that the UE has a context, the acquiring unit 94 uses the second information to acquire the context of the UE; the connection establishing unit 95 Establish a connection based on the acquired context of the UE. Since the connection is established based on the context of the UE, during the process of establishing the connection, there is no need to communicate the context of the UE between network devices, so that the connection can be quickly established. In other words, based on the acquired context of the UE, a quick connection is established.

Correspondingly, after receiving the connection establishment request, the network device may return a connection establishment response to the UE.

In practical applications, the purpose of sending the connection establishment response is not only a response to the connection establishment request, but also: to resolve possible collisions without causing a greater delay, and at the same time save the UE from waiting The network device (such as a base station) background connection establishment (this delay is likely to be higher than the air interface delay) and the delay of re-initiating the access process.

Among them, the reason for sending the connection establishment response is: in actual application, as shown in Figure 1, in Msg1, the UE randomly selects the access preamble (Preamble) by itself, then, it may happen that two UEs just select the same In the case of Preamble; then for the two UEs, the same scheduling information will be received in msg2, and the same scheduling information will be used for transmission in msg3, thus causing transmission conflicts.

At the same time, for the traditional conflict resolution solution, the content carried by msg4 shown in Figure 1 includes: UE ID or random value delivered in msg3 + bearer establishment and user MAC layer and PHY layer configuration. However, since the application scenarios of the embodiments of the present invention are mainly aimed at UEs that already have contexts, it may be considered to directly activate existing bearers without communicating new bearers. Therefore, only the scheduled ID+UE ID of msg3 is needed for conflict resolution.

Based on this, in an embodiment, the device may further include: a second generating unit and a second sending unit; wherein,

The second generating unit is configured to generate a connection establishment response;

The second sending unit is configured to send the connection establishment response to the UE.

Wherein, the connection establishment response may carry fourth information and fifth information; the fourth information represents information required for scheduling; and the fifth information represents a conflict resolution result.

Here, in an embodiment, the connection establishment response further carries third information; the third information indicates that the UE with the context or the UE without the context succeeds in resource competition.

In actual application, a 1-bit identifier (third information) may be added to msg4 shown in FIG. 1 to indicate whether it is a UE with context or UE without context, and the contention for resources is successful. UE receives and chooses whether to further read msg4 according to its own state (whether it has context). Specifically, when the UE has the context, choose to further read msg4, that is, further parse the first response to obtain fourth information and fifth information; the fourth information represents the information required for scheduling, and the fifth information represents the conflict solve the result. When the UE does not have the context, it does not choose to read msg4 further.

In an embodiment, the conflict resolution result may also be sent separately, based on this, the device may further include: a third generating unit and a third sending unit; wherein,

The third generating unit is configured to generate a conflict resolution response; the conflict resolution response carries fourth information and fifth information; the fourth information represents information required for scheduling; the fifth information represents a conflict resolution result;

The third sending unit is configured to send the conflict resolution response to the UE.

Here, in an embodiment, the conflict resolution response also carries third information; the third information indicates that the UE with the context or the UE without the context successfully competes for resources.

The fourth information refers to a scheduling ID; the fourth information may be a TC-RNTI; the fifth information is a UE identifier and/or a UE-related parameter that has competed for a resource.

In practical application, the English expression of the UE identity competing for the resource may use Resolution ID; the Resolution ID refers to the UE ID carried in the msg3 message. The UE-related parameters refer to UE-related parameters carried in the msg3 message.

In actual application, the second receiving unit 91, the second sending unit and the third sending unit can be implemented by a transceiver of the network device; the fourth analyzing unit 91, the judging unit 93, the second generating unit and the third generating unit can be implemented by the network Realized by the CPU, MCU, DSP or FPGA of the device; the acquisition unit 94 and the connection establishment unit 95 can be realized by the CPU, MCU, DSP or FPGA of the network device combined with a transceiver.

In order to implement the method of the embodiment of the present invention, this embodiment also provides a system for establishing a connection, as shown in FIG. 10 , the system includes: UE 101 and network device 102; wherein,

The UE 101 is used to generate a connection establishment request during the service triggering process; the connection establishment request carries first information and second information; the first information represents whether the UE 101 has context; the second information represents The UE 101 has the context extraction information when it has the context; and sends the generated connection establishment request to the network device 102;

The network device 102 is configured to receive the connection establishment request sent by the UE 101; parse the connection establishment request to obtain first information and second information; judge whether the UE 101 has a context according to the first information; when judging The result indicates that when the UE 101 has the context, the second information is used to acquire the context of the UE 101; and based on the acquired context of the UE 101, a connection is established.

Here, it should be noted that: the specific functions of the UE 101 and the network device 102 have been described in detail above, and will not be repeated here.

In the solution provided by the embodiment of the present invention, during the service triggering process, the UE generates a connection establishment request; the connection establishment request carries first information and second information; the first information indicates that the UE has a context; the second information indicates that the UE has a context; Context extraction information when the UE has a context; and sending a generated connection establishment request to the network device; after receiving the connection establishment request sent by the UE, the network device parses the connection establishment request to obtain the first information and second information; judging whether the UE has a context according to the first information; when the judgment result indicates that the UE has a context, using the second information to acquire the context of the UE; and based on the acquired context of the UE, To establish a connection, by carrying the first information and the second information in the connection establishment request, the UE with the context can promptly and effectively inform the network of its own context-related information, so that the network can establish a fast connection based on the context, In this way, communication delay and signaling overhead can be effectively reduced.

In addition, the network device generates a connection establishment response; the connection establishment response carries fourth information and fifth information; the fourth information represents information required for scheduling; the fifth information represents a conflict resolution result; to the UE Send the connection establishment response; or, the network device generates a conflict resolution response; the conflict resolution response carries fourth information and fifth information; the fourth information represents the information required for scheduling; the fifth information represents the conflict Solution result: the conflict resolution response is sent to the UE. Since the UE is a UE with a context, it only needs to activate the existing bearer during the connection establishment process and does not need to create a new bearer. Therefore, the The connection establishment response or the conflict resolution response only needs to carry the fourth information and the fifth information to resolve the conflict. In this way, the signaling overhead is further reduced.

To sum up, in the solution of the embodiment of the present invention, for a network device, as shown in FIG. 11 , the network device first obtains UE context-related information (step 1101), and when the obtained UE context-related information is obtained, the context indication and If the context is extracted, a quick connection is established based on the context (step 1102a); when no context is obtained according to the acquired context information, the network device establishes a complete connection including context establishment (step 1102b).

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (27)

1. A connection establishment method applied to User Equipment (UE) is characterized by comprising the following steps:

generating a connection establishment request; the connection establishment request carries first information and second information; the first information characterizes whether the UE has a context; the second information represents context extraction information when the UE has a context;

and sending the generated connection establishment request to the network equipment.

2. The method of claim 1, wherein the first information is included in the second information.

3. The method of claim 1, wherein the connection establishment request is a Radio Resource Control (RRC) connection establishment request.

4. The method of claim 3, wherein generating the connection establishment request comprises:

adding a context activation option in a connection establishment request reason estabilishment cause indication of the RRC connection establishment request; and the RRC connection establishment request includes a context ID;

the context activation option is first information; the context ID is second information.

5. The method of claim 3, wherein generating the connection establishment request comprises:

adding an information element IE in the RRC connection establishment request, wherein the IE is used for indicating that the UE is provided with a context; and the RRC connection establishment request includes a context ID;

the context ID is second information.

6. The method according to claim 4 or 5, wherein the generating a connection establishment request comprises:

replacing the UE ID with a context ID at the UE identity ID of the RRC connection establishment request, or adding a context ID in the RRC connection establishment request.

7. The method of claim 1, further comprising:

receiving a connection establishment response sent by the network equipment;

analyzing the connection establishment response to obtain fourth information;

further analyzing the connection establishment response to obtain fifth information; the fourth information represents information required for scheduling, and the fifth information represents a conflict resolution result.

8. The method of claim 1, further comprising:

receiving a conflict resolution response sent by the network equipment;

analyzing the conflict resolution response to obtain fourth information;

further analyzing the conflict resolution response to obtain fifth information; the fourth information represents information required for scheduling, and the fifth information represents a conflict resolution result.

9. The method of claim 7 or 8, wherein after parsing the received corresponding response to obtain the fourth information and before obtaining the fifth information, the method further comprises:

analyzing the corresponding response to obtain third information;

and when the third information represents that the UE resource with the context successfully competes, further analyzing the corresponding response to obtain fifth information.

10. The method according to claim 7 or 8, wherein the fourth information is a temporary cell radio network temporary identity, TC-RNTI; the fifth information is the UE identification and/or UE related parameters of the contention to the resource.

11. A method for establishing a connection, applied to a network device, the method comprising:

receiving a connection establishment request sent by UE;

analyzing the connection establishment request to obtain first information and second information; the first information characterizes whether the UE has a context; the second information represents context extraction information when the UE has a context;

judging whether the UE has a context according to the first information;

when the judgment result represents that the UE has the context, the context of the UE is obtained by utilizing the second information;

and establishing connection based on the acquired context of the UE.

12. The method of claim 11, wherein the first information is included in the second information.

13. The method of claim 11, wherein the connection establishment request is an RRC connection establishment request.

14. The method of claim 13, wherein parsing the connection establishment request to obtain the first information and the second information comprises:

obtaining a contextactivation option in an estabilishmentiuse indication of the RRC connection establishment request; and obtaining a context ID in the RRC connection setup request;

the context activation option is first information; the context ID is second information.

15. The method of claim 13, wherein parsing the connection establishment request to obtain the first information and the second information comprises:

obtaining an added IE in the RRC connection setup request, the IE indicating that the UE is provided with a context; and obtaining a context ID in the RRC connection setup request;

the context ID is second information.

16. The method according to claim 14 or 15, wherein the parsing the connection establishment request to obtain the first information and the second information comprises:

obtaining a context ID at a UE ID of the RRC connection setup request or obtaining a context ID at an IE newly added to the RRC connection setup request.

17. The method of claim 11, further comprising:

generating a connection establishment response; sending the connection establishment response to the UE;

the connection establishment response carries fourth information and fifth information; the fourth information represents information required by scheduling; the fifth information characterizes a conflict resolution result.

18. The method of claim 11, further comprising:

generating a conflict resolution response; the conflict resolution response carries fourth information and fifth information; the fourth information represents information required by scheduling; the fifth information represents a conflict resolution result;

transmitting the conflict resolution response to the UE.

19. The method according to claim 17 or 18, wherein the generated corresponding response further carries third information; the third information represents that the UE with the context or the UE without the context successfully competes.

20. The method according to claim 17 or 18, wherein the fourth information is TC-RNTI; the fifth information is the UE identification and/or UE related parameters of the contention to the resource.

21. A UE, wherein the UE comprises: a first generating unit and a first transmitting unit; wherein,

the first generating unit is used for generating a connection establishment request; the connection establishment request carries first information and second information; the first information characterizes whether the UE has a context; the second information represents context extraction information when the UE has a context;

the first sending unit is configured to send the generated connection establishment request to the network device.

22. The UE of claim 21, wherein the UE further comprises: a first receiving unit and a first analyzing unit; wherein,

the first receiving unit is configured to receive a connection establishment response sent by the network device;

the first analysis unit is used for analyzing the connection establishment response to obtain fourth information; further analyzing the connection establishment response to obtain fifth information; the fourth information represents information required for scheduling, and the fifth information represents a conflict resolution result.

23. The UE of claim 22, wherein the UE further comprises: a third analysis unit; wherein,

the first receiving unit is further configured to receive a conflict resolution response sent by the network device;

the third analyzing unit is configured to analyze the conflict resolution response to obtain fourth information; further analyzing the conflict response to obtain fifth information; the fourth information represents information required for scheduling, and the fifth information represents a conflict resolution result.

24. The UE of claim 22 or 23, wherein the UE further comprises: the second analysis unit is used for analyzing the received corresponding response to obtain the third information after the fourth information is obtained and before the fifth information is obtained;

correspondingly, when the third information represents that the contention of the UE resource with the context is successful, the corresponding response is analyzed by the corresponding analysis unit to obtain fifth information.

25. A network device, the device comprising: the device comprises a second receiving unit, a fourth analyzing unit, a judging unit, an obtaining unit and a connection establishing unit; wherein,

the second receiving unit is configured to receive a connection establishment request sent by the UE;

the fourth analyzing unit is configured to analyze the connection establishment request to obtain the first information and the second information; the first information characterizes whether the UE has a context; the second information represents context extraction information when the UE has a context;

the judging unit is used for judging whether the UE has the context according to the first information;

the obtaining unit is configured to obtain the context of the UE by using the second information when the determination result indicates that the UE has the context;

the connection establishing unit is configured to establish a connection based on the obtained context of the UE.

26. The apparatus of claim 25, further comprising: a second generating unit and a second transmitting unit; wherein,

the second generating unit is used for generating a connection establishment response; the second sending unit is configured to send the connection establishment response to the UE;

the connection establishment response carries fourth information and fifth information; the fourth information represents information required by scheduling; the fifth information characterizes a conflict resolution result.

27. The apparatus of claim 25, further comprising a third generating unit and a third transmitting unit; wherein,

the third generating unit is used for generating a conflict resolution response; the conflict resolution response carries fourth information and fifth information; the fourth information represents information required by scheduling; the fifth information represents a conflict resolution result;

the third sending unit is configured to send the conflict resolution response to the UE.