Communication method based on time division multiple access communication system, and terminal

• US 10,298,342 B2
• Filed: 12/11/2013
• Issued: 05/21/2019
• Est. Priority Date: 12/11/2013
• Status: Active Grant

• Current Assignee: Hytera Communications Corp. Ltd.
• Original Assignee: Hytera Communications Corp. Ltd.
• Inventors: Yu, Yang, Xu, Yan, Luo, Zhenghua, Yang, Fan
• Primary Examiner(s): Wyllie, Christopher T
• Application Number:
  US15/102,421
• Publication Number:
  US 20160323054A1
• Time in Patent Office: 1,987 Days
• Field of Search: None
• CPC Class Codes: H04B 7/2643 using time-division multiple access [TDMA] H04B7/2615, H04B7/2618 take precedence
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04J 3/0652 Synchronisation among time division multiple access [TDMA] nodes, e.g. time triggered protocol [TTP] bus network with centralized control in which slots are of a TDMA packet structure H04L12/4035
• CPC Class Codes: H04J 3/1694 Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers Passive Optical Networks H04Q11/0062
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT

Abstract

Disclosed are a communication method based on a time division multiple access communication system, and a terminal. The method comprises: receiving, by a communication terminal, an embedded signalling frame, conducting embedded type information parsing on the embedded signalling frame to obtain an embedded signalling and control information; in accordance with the control information, caching, by the communication terminal, the embedded signalling to corresponding caching regions; and when each corresponding caching region has already been cached with the embedded signalling, conducting embedded type signalling decoding, by the communication terminal, on the embedded signalling in all the caching regions so as to obtain a control signalling. The technical solution of the present invention can shorten the terminal access duration of the time division multiple access communication system, thereby improving the access performance of the time division multiple access communication system.

Claims

1. A communication method based on a time division multiple access communication system, comprising:

storing, by the communication terminal, an air interface timing of a current channel;

estimating, by the communication terminal, an air interface timing of a channel to switch to in accordance with the stored air interface timing of the current channel; and

synchronizing, by the communication terminal, to the channel to switch to in accordance with the estimated air interface timing;

receiving, by a communication terminal, an embedded signaling frame, and performing, by the communication terminal, embedded information parsing on the embedded signaling frame to acquire embedded signalings and control information;

buffering, by the communication terminal, the embedded signalings into corresponding buffer regions in accordance with the control information; and

performing, by the communication terminal, embedded signaling decoding on the embedded signalings in all of the buffer regions to acquire a control signaling when each of the buffer regions has buffered a corresponding embedded signaling,

wherein the estimating, by the communication terminal, the air interface timing of the channel to switch to in accordance with the stored air interface timing of the current channel comprises;

estimating, by the communication terminal, that the air interface timing of the channel to switch to is the same as the stored air interface timing of the current channel, in a case that the current channel and the channel to switch to have a same frequency and a same time slot; and

determining, by the communication terminal, the air interface timing of the channel to switch to, in accordance with a time-slot relationship between the current channel and the channel to switch to, in a case that the current channel and the channel to switch to have a same frequency and different time slots.

2. The method according to claim 1, wherein the buffering, by the communication terminal, the embedded signalings into the corresponding buffer regions in accordance with the control information comprises:

buffering, by the communication terminal, a current embedded signaling into a buffer region corresponding to a position indicated by current control information; and

adjusting, by the communication terminal, a position of the buffered current embedded signaling in accordance with the position indicated by the current control information and a position indicated by next control information.

3. The method according to claim 2, wherein before the receiving, by the communication terminal, the embedded signaling frame, the method further comprises:

storing, by the communication terminal, an air interface timing of a current channel; and

estimating, by the communication terminal, an air interface timing of a channel to switch to in accordance with the stored air interface timing of the current channel; and

synchronizing, by the communication terminal, to the channel to switch to in accordance with the estimated air interface timing.

4. The method according to claim 2, wherein in a case that the embedded signaling frame is a voice super frame, the method further comprises:

determining, by the communication terminal, whether protocol data unit information in the control signaling indicates that a call is directed to the communication terminal; and

turning on, by the communication terminal, a speaker of the communication terminal to receive the voice call, in a case that the protocol data unit information indicates that the call is directed to the communication terminal.

5. The method according to claim 2, wherein in a case that the embedded signaling frame is a common notification channel frame, the method further comprises:

determining, by the communication terminal, whether a compressed address in the link control signaling is a compressed address of the communication terminal; and

scanning, by the communication terminal, a next channel in a case that the compressed address is not the compressed address of the communication terminal.

6. The method according to claim 1, wherein in a case that the embedded signaling frame is a voice super frame, the method further comprises:

determining, by the communication terminal, whether protocol data unit information in the control signaling indicates that a call is directed to the communication terminal; and

turning on, by the communication terminal, a speaker of the communication terminal to receive the voice call, in a case that the protocol data unit information indicates that the call is directed to the communication terminal.

7. The method according to claim 1, wherein in a case that the embedded signaling frame is a common notification channel frame, the method further comprises:

determining, by the communication terminal, whether a compressed address in the link control signaling is a compressed address of the communication terminal; and

scanning, by the communication terminal, a next channel in a case that the compressed address is not the compressed address of the communication terminal.

8. A communication terminal based on a time division multiple access communication system, comprising a processor and a memory having code instructions stored therein, wherein when the code instructions are executed by the processor, the processor is configured to:

store an air interface timing of a current channel;

estimate an air interface timing of a channel to switch to in accordance with the stored air interface timing of the current channel;

synchronize to the channel to switch to in accordance with the estimated air interface timing;

receive an embedded signaling frame;

perform embedded information parsing on the embedded signaling frame to acquire embedded signalings and control information;

buffer the embedded signalings into corresponding buffer regions in accordance with the control information; and

perform embedded signaling decoding on the embedded signalings in all of the buffer regions to acquire a control signaling when each of the buffer regions has buffered a corresponding embedded signaling,

wherein the processor is configured to estimate an air interface timing of a channel to switch to in accordance with the stored air interface timing of the current channel by;

estimating that the air interface timing of the channel to switch to is the same as the stored air interface timing of the current channel in a case that the current channel and the channel to switch to have a same frequency and a same time slot; and

determining the air interface timing of the channel to switch to in accordance with a time-slot relationship between the current channel and the channel to switch to in a case that the current channel and the channel to switch to have a same frequency and different time slots.

9. The terminal according to claim 8, wherein the processor is further configured to:

buffer a current embedded signaling into a buffer region corresponding to a position indicated by current control information; and

adjust a position of the buffered current embedded signaling in accordance with the position indicated by the current control information and a position indicated by next control information.

10. The terminal according to claim 9, wherein the processor is further configured to:

store an air interface timing of a current channel;

estimate an air interface timing of a channel to switch to in accordance with the stored air interface timing of the current channel; and

synchronize to the channel to switch to in accordance with the estimated air interface timing.

11. The terminal according to claim 9, wherein in a case that the embedded signaling frame is a voice super frame, the processor is further configured to:

determine whether protocol data unit information in the control signaling indicates that a call is directed to the communication terminal; and

turn on a speaker of the communication terminal to receive the voice call in a case that the protocol data unit information indicates that the call is directed to the communication terminal.

12. The terminal according to claim 9, wherein in a case that the embedded signaling frame is a common notification channel frame, the processor is further configured to:

determine whether a compressed address in the link control signaling is a compressed address of the communication terminal; and

scan a next channel in a case that the compressed address is not the compressed address of the communication terminal.

13. The terminal according to claim 8, wherein in a case that the embedded signaling frame is a voice super frame, the processor is further configured to:

determine whether protocol data unit information in the control signaling indicates that a call is directed to the communication terminal; and

turn on a speaker of the communication terminal to receive the voice call in a case that the protocol data unit information indicates that the call is directed to the communication terminal.

14. The terminal according to claim 8, wherein in a case that the embedded signaling frame is a common notification channel frame, the processor is further configured to:

determine whether a compressed address in the link control signaling is a compressed address of the communication terminal; and

scan a next channel in a case that the compressed address is not the compressed address of the communication terminal.