Abstract
The present invention relates to the communications field, and discloses user equipment and a network access method, so as to resolve a problem of service transmission interruption caused by a relatively long time for UE to access a network again after the UE fails to access a network or detects an RLF or an HOF in a current cell. In a specific solution, an obtaining unit obtains access information for accessing a network in a first cell, and the first cell is a cell included in a list pre-stored on the UE. A storage unit stores the access information obtained by the obtaining unit. A determining unit determines that accessing a network in the first cell is required. An access unit accesses a network in the first cell according to the access information stored in the storage unit.
Technologies
Mobility and handover
Product
Use Cases
Wireless communication
Services
Claim
1. A network access method, comprising:
obtaining, by user equipment (UE), access information for accessing a network in a first cell, and storing the access information, wherein the first cell is a cell in a list pre-stored on the UE; determining, by the UE, that accessing the network in the first cell is needed; and accessing, by the UE, the network in the first cell according to the stored access information.
2. The method according to claim 1, wherein before the obtaining, by the UE, the access information for accessing the network in the first cell, the method further comprises:
measuring, by the UE, signal quality of the first cell according to instruction information that is carried in configuration information sent by a network device, to obtain a first measurement result, wherein the instruction information is used to instruct to measure the signal quality of the first cell; and, wherein the obtaining, by the UE, the access information for accessing the network in the first cell comprises: obtaining, by the UE, the access information when the UE determines that the first measurement result is greater than a preset threshold carried in the configuration information.
3. The method according to claim 2, wherein after the measuring, by the UE, the signal quality of the first cell according to the instruction information that is carried in the configuration information sent by the network device, to obtain the first measurement result, the method further comprises:
storing, by the UE, the first measurement result, and starting a first timer, wherein an expiration time of the first timer indicates an effective time of the first measurement result; and before the accessing, by the UE, the network in the first cell according to the stored access information, the method further comprises: determining, by the UE, that the first timer has not expired.
4. The method according to claim 3, wherein the method further comprises:
when determining that the first timer has expired, measuring again, by the UE, the signal quality of the first cell according to the instruction information, to obtain a third measurement result; and when determining that the third measurement result is greater than the preset threshold, accessing the network in the first cell according to the stored access information.
5. The method according to claim 1, wherein before the accessing, by the UE, the network in the first cell according to the stored access information, the method further comprises:
measuring, by the UE, signal quality of the first cell according to instruction information that is carried in configuration information sent by a network device, to obtain a second measurement result; and determining that the second measurement result is greater than a preset threshold carried in the configuration information.
6. The method according to claim 1, wherein after the obtaining, by the UE, the access information for accessing the network in the first cell, and storing the access information, the method further comprises:
starting, by the UE, a second timer, wherein an expiration time of the second timer indicates an effective time of the access information; and the accessing, by the UE, a network in the first cell according to the stored access information comprises: when determining that the second timer has not expired, accessing, by the UE, the network in the first cell according to the stored access information.
7. The method according to claim 1, wherein the access information comprises an remaining effective time of the access information; and
the accessing, by the UE, the network in the first cell according to the stored access information comprises: when determining that the remaining effective time of the access information is not 0, accessing, by the UE, a network in the first cell according to the stored access information.
8. The method according to claim 1, wherein the determining, by the UE, that accessing the network in the first cell is required comprises:
determining, by the UE, that after a preamble message or a layer 3 message is sent to a network device, a response message sent by the network device is not received; or determining, by the UE, that after a preamble message or a layer 3 message is sent to the network device, a response denial message sent by the network device is received; or detecting, by the UE, a radio link failure (RLF) or a handover failure (HOF) in a current cell.
9. The method according to claim 2, wherein the measuring, by the UE, the signal quality of the first cell according to the instruction information that is carried in the configuration information sent by the network device, to obtain the first measurement result comprises:
measuring, by the UE according to the instruction information carried in the configuration information, the signal quality of the first cell by using an idle RF resource, to obtain the first measurement result.
10. An apparatus, comprising:
a receiver, configured to receive access information for accessing a network in a first cell, wherein the first cell is a cell in a list pre-stored on user equipment (UE); a memory, configured to store the access information received by the receiver; and a processor, configured to determine that accessing a network in the first cell is needed, and access the network in the first cell according to the access information stored in the memory.
11. The apparatus according to claim 10, wherein
the processor is further configured to: before the receiver receives the access information for accessing the network in the first cell, measure signal quality of the first cell according to instruction information that is carried in configuration information sent by a network device, to obtain a first measurement result, wherein the instruction information is for measuring the signal quality of the first cell; and the receiver is configured to receive the access information when the first measurement result is greater than a preset threshold carried in the configuration information.
12. The apparatus according to claim 11, wherein
the memory is further configured to: after the processor measures the signal quality of the first cell according to the instruction information that is carried in the configuration information sent by the network device, to obtain the first measurement result, store the first measurement result; and the processor is further configured to: start a first timer, wherein an expiration time of the first timer indicates an effective time of the first measurement result; and before accessing a network in the first cell according to the stored access information, determine that the first timer has not expired.
13. The apparatus according to claim 12, wherein
the processor is further configured to: when determining that the first timer has expired, measure again a signal quality of the first cell according to instruction information, to obtain a third measurement result; and when determining that the third measurement result is greater than a preset threshold, access a network in the first cell according to the stored access information.
14. The apparatus according to claim 10, wherein
the processor is further configured to: before accessing a network in the first cell according to the stored access information, measure the signal quality of the first cell according to instruction information that is carried in the configuration information sent by a network device, to obtain a second measurement result; and determine that the second measurement result is greater than a preset threshold carried in the configuration information.
15. The apparatus according to claim 10, wherein
the processor is further configured to start a second timer after the receiver receives the access information for accessing a network in the first cell and the memory stores the access information, wherein an expiration time of the second timer indicates an effective time of the access information; and the processor is configured to: when determining that the second timer has not expired, access a network in the first cell according to the stored access information.
16. The apparatus according to claim 10, wherein the access information obtained by the processor comprises information indicating remaining effective time for the access information; and
the processor is configured to: when determining that the remaining effective time for the access information is not 0, access a network in the first cell according to the stored access information.
17. The apparatus according to claim 10, wherein the processor is configured to:
determine that after a preamble message or a layer 3 message is sent to a network device, a response message sent by the network device is not received; or determine that after a preamble message or a layer 3 message is sent to the network device, a response denial message sent by the network device is received; or detect a radio link failure (RLF) or a handover failure (HOF) a current cell.
18. The apparatus according to claim 10, wherein
the processor is configured to obtain the access information by using an idle radio frequency (RF) resource.
19. The apparatus according to claim 11, wherein
the processor is configured to measure, according to the instruction information carried in the configuration information, the signal quality of the first cell by using an idle RF resource, to obtain the first measurement result.
20. A non-transitory computer readable medium comprising computer program codes stored thereon, executable by one or more digital processors for providing system configurations, the computer program codes including:
instructions for obtaining access information for accessing a network in a first cell, and storing the access information, wherein the first cell is a cell comprised in a pre-stored list of user equipment; instructions for determining that accessing a network in the first cell is required; and instructions for accessing a network in the first cell according to the stored access information.
Associated Portfolios
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Note:
The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.