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CN-122002611-A - Random access method and related device

CN122002611ACN 122002611 ACN122002611 ACN 122002611ACN-122002611-A

Abstract

The application provides a random access method and a related device, wherein a network device sends indication information to a device, the indication information is used for the device to assist in detecting response information, the response information is used for responding to a first message, the first message is used for the device to initiate random access to the network device, that is, the indication information can be used for the device to assist in detecting the response information of the first message initiating random access, the assisted detection can be understood as more efficiently detecting the self random access response information, and more efficiently ending at least one aspect of the random access response information, thereby realizing the purpose of reducing the detection energy consumption of the device.

Inventors

  • CAO YONGZHAO
  • WANG CHAO
  • ZHANG JIAN
  • CHI LIANGANG

Assignees

  • 荣耀终端股份有限公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (20)

  1. 1. A random access method, comprising: And sending indication information to the equipment, wherein the indication information is used for assisting in detecting response information by the equipment, the response information is used for responding to a first message, and the first message is used for initiating random access to the network equipment by the equipment.
  2. 2. The method of claim 1, wherein the indication information comprises: and a bitmap, wherein bits in the bitmap correspond to the resources, the bits are a first value and indicate that the response information is not detected, and the bits are a second value and indicate that the response information is detected.
  3. 3. The method according to claim 2, wherein the resources comprise time domain resources and/or frequency domain resources, and wherein the correspondence of bits to the resources is determined based on an ordering rule of the time domain resources and/or the frequency domain resources.
  4. 4. A method according to any one of claims 1-3, wherein the indication information comprises: a first type of sequence that indicates that the device associated with the first type of sequence detects the response information.
  5. 5. The method of claim 4, wherein the first type of sequence comprises: No collision occurs and/or is received correctly and/or the preamble in the first message is successfully detected.
  6. 6. The method of claim 4 or 5, wherein the first type of sequence is arranged according to a predetermined ordering rule.
  7. 7. The method according to any one of claims 4-6, wherein the indication information further comprises: And response information corresponding to the first type of sequence.
  8. 8. The method of claim 7, wherein the indication information includes a first portion and a second portion, the first portion preceding the second portion, the first portion including the first type of sequence arranged in a predetermined order, the predetermined order determined based on a value of the first type of sequence, the second portion including response information corresponding to the first type of sequence in the first portion, the response information being ordered in the same order as the corresponding first type of sequence.
  9. 9. The method of claim 8, wherein the transmitting the indication information comprises: And transmitting a second message for responding to the first message, wherein the first part is contained in control information of the second message, the second part is contained in a load of the second message, and the control information is independently coded with the load or coded as a whole.
  10. 10. The method of claim 7, wherein the indication information includes at least one portion, any one portion including one of the first type sequences and corresponding response information, the at least one portion being arranged according to a preset ordering rule of the included first type sequences, the ordering rule being determined based on a value of the first type sequences.
  11. 11. The method according to any one of claims 1-10, wherein the indication information comprises: And the second information is used for responding to the first information, and the second information comprises the response information.
  12. 12. The method of claim 11, further comprising, prior to said sending the indication information: determining the number of the second messages based on the number of the resources transmitting the second messages, or The number of second messages is determined based on the number of categories of the device sending the first message.
  13. 13. The method according to claim 11 or 12, wherein the transmitting the indication information comprises: And sending the second message, wherein the number is contained in the second message which is sent first in the time domain.
  14. 14. The method according to any one of claims 1-13, wherein the sending the indication information comprises: Before the last second message is sent, a second type sequence is sent, the second message is used for responding to the first message, the second message comprises the response information, and the second type sequence represents the last second message.
  15. 15. The method of claim 14, further comprising, prior to said transmitting the second class of sequences: a third class of sequence and other second messages are sent, the third class of sequence being different from the second class of sequence, the third class of sequence indicating that the other second messages are not the last of the second messages.
  16. 16. The method according to any one of claims 1-15, wherein the sending the indication information comprises: After the last second message is sent, a fourth class sequence indicating the last second message is sent, the second message is used for responding to the first message, and the second message comprises the response information.
  17. 17. The method according to any one of claims 1-16, wherein the indication information comprises: A number of second messages, said second messages being for responding to said first messages, said second messages comprising said response information, and/or, The association relation between the first resource and the second resource, wherein the first resource is the resource for transmitting the first message, the second resource is the resource for transmitting the second message, and/or, And transmitting information of the last resource of the second message.
  18. 18. A random access method, comprising: and receiving indication information, wherein the indication information is used for assisting in detecting response information, the response information is used for responding to a first message, and the first message is used for initiating random access to the network equipment.
  19. 19. The method of claim 18, wherein the indication information comprises: and a bitmap, wherein bits in the bitmap correspond to the resources, the bits are a first value and indicate that the response information is not detected, and the bits are a second value and indicate that the response information is detected.
  20. 20. The method according to claim 19, wherein the resources comprise time domain resources and/or frequency domain resources, and wherein the correspondence of bits to the resources is determined based on an ordering rule of the time domain resources and/or the frequency domain resources.

Description

Random access method and related device Technical Field The present application relates to the field of communications technologies, and in particular, to a random access method and a related device. Background With the development of the internet of things, higher demands are put forward on the application scene and performance of the internet of things, and 3GPP is discussing and making passive internet of things technology based on cellular communication, on one hand, the cost can be reduced by using the existing large-scale cellular infrastructure, and on the other hand, the coverage area of the passive internet of things can be improved by using many mature technologies of cellular communication, such as interference management, mobility management and the like. And the communication flow under the 3GPP framework ensures that the energy consumption of the Internet of things equipment is higher. How to reduce the energy consumption of the device is a problem to be solved. Disclosure of Invention The application provides a random access method and a related device, which are used for solving the problem of how to reduce the energy consumption of equipment, and the disclosed technical scheme is as follows: The first aspect of the present application provides a random access method, in which indication information is sent to a device, the indication information is used for device-assisted detection of response information, the response information is used for responding to a first message, the first message is used for the device to initiate random access to a network device, that is, the indication information can be used for device-assisted detection of response information to the first message initiating random access, and the auxiliary detection can be understood as more efficient detection of a self random access response message, and more efficient termination of at least one aspect of the random access response message, so as to achieve the purpose of reducing detection energy consumption of the device. In some implementations, sending the indication information to the device includes sending the indication information to the device after receiving the first message sent by the device. May be sent separately or may be carried in other messages (e.g., MSG 2) addressed to the device. In some implementations, the indication information includes a bitmap, bits in the bitmap corresponding to the resource, the bits being first values representing no detection response information and the bits being second values representing detection response information. The bitmap can clearly indicate whether the device detects the response information, and for the device indicating that the response information is not detected, the response information is not required to be detected, so that energy consumption is saved. In some implementations, the indication information includes a set of code points including a code point corresponding to a first resource including a resource for transmitting a first message in which a collision occurs or a first resource including a resource for transmitting the first message in which no collision occurs. The set of code points has in some cases a smaller amount of data than the bitmap, enabling transmission overhead to be saved. In some implementations, the indication information includes a bitmap and a code point representing a resource group, bits in the bitmap correspond to the resource, the bits are a first value representing no detection response information, the bits are a second value representing detection response information, and the code point and the bitmap are combined to indicate more dimensional information, and have higher flexibility. In some implementations, the resources include time domain resources and/or frequency domain resources, and the correspondence between bits and resources is determined based on an ordering rule of the time domain resources and/or the frequency domain resources, so that implementation and processing are facilitated. In some implementations, sending the indication information includes sending a second message (e.g., MSG 2) for responding to the first message (e.g., MSG 1), the second message including the indication information, with greater compatibility with the 3GPP standard. In some implementations, the second message includes indication information including the indication information contained in control information of the second message or the indication information contained in a payload of the second message, the control information being encoded independently of the payload or as a whole. In some implementations, the second message further includes a number of devices, among the devices that sent the first message, that are responded to by the network device. In some implementations, the second message including the indication information is a second message that is transmitted first in the time domain for responding to the fi