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EP-4376537-B1 - WIRELESS COMMUNICATION WITH CONFLICT AVOIDANCE

EP4376537B1EP 4376537 B1EP4376537 B1EP 4376537B1EP-4376537-B1

Inventors

  • TIAN, LI
  • DAI, Jianqiang
  • ZHANG, JUNFENG
  • HUANG, HE
  • HU, Yuzhou

Dates

Publication Date
20260506
Application Date
20190430

Claims (15)

  1. A wireless communication method comprising: determining, by a mobile station, a request to obtain random access in a wireless communication network and transmit an uplink message to a wireless access node, the uplink message comprising a first message part and a second message part; transmitting, by the mobile station to the wireless access node, the first message part on a time unit of a first physical channel; and transmitting the second message part on a time unit of a second physical channel, wherein the time unit of the second physical channel is at least one uplink time unit and has an offset with respect to the time unit of the first physical channel, wherein the offset is a number of time units that are configured as uplink time units after transmitting the first message part on the time unit of the first physical channel.
  2. The wireless communication method of claim 1, wherein the mobile station and the wireless access node communicate by utilizing at least one frequency resource comprising a plurality of time units, wherein individual time units of the plurality of time units are configured as at least one of an uplink time unit or a downlink time unit.
  3. The wireless communication method of claim 1, wherein the mobile station and the wireless access node communicate by utilizing at least one frequency resource comprising a plurality of time units, wherein a first subset of the plurality of time units are configured as time units of a first physical channel, and wherein a second subset of the plurality of time units are configured as time units of a second physical channel.
  4. The wireless communication method of claim 1, wherein the time units comprise slots or symbols.
  5. The wireless communication method of claim 1, wherein the first physical channel comprises a Physical Random Access Channel, PRACH, occasion, and wherein the second physical channel comprises a Physical Uplink Shared Channel, PUSCH, occasion.
  6. The wireless communication method of claim 1, wherein the first message part comprises a preamble message and the second message part comprises a payload message.
  7. The wireless communication method of claim 1, wherein the first message part comprises a Physical Random Access Channel, PRACH, message and the second message part comprises a Physical Uplink Shared Channel, PUSCH, message.
  8. A wireless communication method comprising: receiving, by a wireless access node from a mobile station, a first message part of a first uplink message on a time unit of a first physical channel; receiving, by the wireless access node from the mobile station, a second message part of the first uplink message on a time unit of a second physical channel, wherein the time unit of the second physical channel is at least one uplink time unit and has an offset with respect to the time unit of the first physical channel, wherein the offset is a number of time units that are configured as uplink time units after transmitting the first message part on the time unit of the first physical channel; transmitting, by the wireless access node to the mobile station, a third message part of a first downlink message in response to receiving the second message part of the first uplink message according to a first transmission format; receiving, by the wireless access node from the mobile station, a first message part of a second uplink message on another time unit of the first physical channel; and transmitting, by the wireless access node to the mobile station, a third message part of a second downlink message according to a second transmission format in response to determining that the first message part of the second uplink message includes information indicating the mobile station transmitted the first message part of the second uplink message according to the second transmission format.
  9. The wireless communication method of claim 8, further comprising receiving, by the wireless access node from the mobile station, a second message part of the second uplink message on a time unit of a second physical channel after transmitting the third message part of the second downlink message.
  10. The wireless communication method of claim 8, wherein the mobile station and the wireless access node communicate by utilizing at least one frequency resource comprising a plurality of time units, wherein individual time units of the plurality of time units are configured as at least one of an uplink time unit or a downlink time unit.
  11. The wireless communication method of claim 8, wherein the mobile station and the wireless access node communicate by utilizing at least one frequency resource comprising a plurality of time units, wherein a first subset of the plurality of time units are configured as time units of a first physical channel, and a second subset of the plurality of time units are configured as time units of a second physical channel.
  12. The wireless communication method of claim 8, wherein the first physical channel comprises a Physical Random Access Channel, PRACH, occasion, and wherein the second physical channel comprises a Physical Uplink Shared Channel, PUSCH, occasion.
  13. The wireless communication method of claim 8, wherein the first message part comprises a preamble message and the second message part comprises a payload message.
  14. A wireless access node comprising a processor and a memory, wherein the processor is configured to read computer code from the memory to implement a method in any one of claims 8-13.
  15. A computer program product comprising a non-transitory computer-readable program medium with computer code stored thereupon, the computer code, when executed by a processor, causing the mobile station to implement a method of any one of claims 1 to 7 or causing the wireless access node to implement a method of any one of claims 8-13.

Description

TECHNICAL FIELD This disclosure is directed generally to wireless communication methods, to a wireless access node and to a computer program product. BACKGROUND Wireless communication technologies are moving the world towards a rapidly increasing network connectivity. High-speed and low-latency wireless communications rely on efficient network resource management and allocation between user mobile stations and wireless access network nodes (including but not limited to wireless base stations). Unlike traditional circuit-switched networks, efficient wireless access networks may not rely on dedicated user channels. Instead, wireless network resources (such as carrier frequencies and transmission time slots) for transmitting voice or other types of data from mobile stations to wireless access network nodes may be allocated on a contention-based random access basis rather than a grant-based fixed access basis. WO 2018/127549 A1 relates to a method of transmitting data in a telecommunications system comprising a terminal and a base station, the terminal being operable to use a first random access procedure and a second random access procedure for the transmission of data to the base station. SUMMARY The invention is specified by the independent claims. Preferred embodiments are defined in the dependent claims. In the invention, another wireless communication method includes a mobile station determining a requirement to transmit an uplink message to a wireless access node, which uplink message includes a first message part and a second message part. The mobile station transmits the first message part on a time unit of a first physical channel. The mobile station then transmits the second message part on a time unit of a second physical channel, wherein the time unit of the second physical channel is at least one uplink time unit and has an offset with respect to the time unit of the first physical channel, wherein the offset is a preset number of time units that are configured as uplink time units after transmitting the first message part on the time unit of the first physical channel. The above embodiment and other aspects and alternatives of their implementations are described in greater detail in the drawings, the descriptions, and the claims below. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an example system diagram including a mobile station and a wireless access node according to various embodiments.FIG. 2 shows an example of a transmission format procedure for transmissions between a mobile station and a wireless access node.FIG. 3 shows an example of another transmission format procedure for transmissions between a mobile station and a wireless access node.FIG. 4 shows an example of another transmission format procedure for transmissions between a mobile station and a wireless access node.FIG. 5 shows an example configuration of a resource including conflicts at various time units.FIG. 6 shows another example configuration of a resource including conflicts at various time units.FIG. 7 shows example methods to avoid transmission conflicts according to various embodiments.FIG. 8 shows another example method to avoid transmission conflicts according to various embodiments.FIG. 9 shows another example method to avoid transmission conflicts according to various embodiments.FIG. 10 shows additional example methods to avoid transmission conflicts according to various embodiments.FIG. 11 shows another example method to avoid transmission conflicts according to various embodiments. DETAILED DESCRIPTION A wireless access network provides network connectivity between mobile stations and an information or data network (such as a voice communication network or the Internet). An example wireless access network may be based on cellular technologies, which may further be based on, for example, 4G, Long Term Evolution (LTE), 5G, and/or New Radio (NR) technologies and/or formats. FIG. 1 shows an example system diagram including a mobile station 102 and a wireless access node 104 according to various embodiments. The mobile station 102 may comprise a user equipment (UE), which may further include but is not limited to a mobile phone, smart phone, tablet, laptop computer, or other mobile devices that are capable of communicating wirelessly over a network. The mobile station 102 may include transceiver circuitry 106 coupled to an antenna 108 to effect wireless communication with the wireless access node 104. The transceiver circuitry 106 may also be coupled to a processor 110, which may also be coupled to a memory 112 or other storage device. The memory 112 may store therein instructions or code that, when read and executed by the processor 110, cause the processor 110 to implement various ones of the methods described herein. Similarly, the wireless access node 104 may comprise a base station or other wireless network access points capable of communicating wirelessly over a network with one or many mobile stations. For e