Frequency hopping offsetting for multiple users reusing one slot (MUROS)
First Claim
1. A method implemented in one or more communications nodes in a radio telecommunications system, comprising:
- defining a first group of mobile terminal communications and a second group of mobile terminal communications to be serviced in a cell area;
identifying a basic frequency hopping sequence to be used for both the first and second group of mobile terminal communications, where each hop in the basic frequency hopping sequence corresponds to a time-frequency radio resource;
determining an offset from the basic frequency hopping sequence corresponding to each mobile terminal communication in the first and second groups;
using the offset for each mobile terminal communication to generate an assigned frequency hopping sequence corresponding to that mobile terminal communication;
wherein at least some of the assigned frequency hopping sequences overlap such that a first mobile terminal communication from the first group and a second mobile terminal communication from the second group simultaneously use the same time-frequency radio resource during one hop in their corresponding assigned frequency hopping sequences, andwherein the first mobile terminal communication uses a first time-frequency radio resource during another hop in their corresponding assigned frequency hopping sequence, andwherein the second mobile terminal communication uses a second time-frequency radio resource different from the first time-frequency radio resource during the another hop in their corresponding assigned frequency hopping sequence.
1 Assignment
0 Petitions
Accused Products
Abstract
First and second groups of mobile terminal communications in a cell are defined. A basic frequency hopping sequence for both groups is identified. An offset from the basic hopping sequence is determined for each mobile terminal communication in the first and second groups and is used along with the basic frequency hopping sequence to generate an assigned frequency hopping sequence for each mobile terminal. Some of the assigned frequency hopping sequences overlap such that a first communication from the first group and a second communication from the second group simultaneously use the same time-frequency radio resource during one hop in their corresponding assigned frequency hopping sequences. The first and second mobile terminal communications use a different time-frequency radio resource during another hop in their respective assigned frequency hopping sequence thereby varying the offset for each mobile terminal communication in the second group to improve interference diversity between the two groups for each hop.
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Citations
23 Claims
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1. A method implemented in one or more communications nodes in a radio telecommunications system, comprising:
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defining a first group of mobile terminal communications and a second group of mobile terminal communications to be serviced in a cell area; identifying a basic frequency hopping sequence to be used for both the first and second group of mobile terminal communications, where each hop in the basic frequency hopping sequence corresponds to a time-frequency radio resource; determining an offset from the basic frequency hopping sequence corresponding to each mobile terminal communication in the first and second groups; using the offset for each mobile terminal communication to generate an assigned frequency hopping sequence corresponding to that mobile terminal communication; wherein at least some of the assigned frequency hopping sequences overlap such that a first mobile terminal communication from the first group and a second mobile terminal communication from the second group simultaneously use the same time-frequency radio resource during one hop in their corresponding assigned frequency hopping sequences, and wherein the first mobile terminal communication uses a first time-frequency radio resource during another hop in their corresponding assigned frequency hopping sequence, and wherein the second mobile terminal communication uses a second time-frequency radio resource different from the first time-frequency radio resource during the another hop in their corresponding assigned frequency hopping sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Apparatus implemented in one or more communications nodes in a radio telecommunications system, comprising electronic circuitry arranged to:
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define a first group of mobile terminal communications and a second group of mobile terminal communications to be serviced in a cell area; identify a basic frequency hopping sequence to be used for both the first and second group of mobile terminal communications, where each hop in the basic frequency hopping sequence corresponds to a time-frequency radio resource; determine an offset from the basic frequency hopping sequence corresponding to each mobile terminal communication in the first and second groups; use the offset for each mobile terminal connection to generate an assigned frequency hopping sequence corresponding to that mobile terminal communication, where at least some of the assigned frequency hopping sequences overlap such that a first mobile terminal communication from the first group and a second mobile terminal communication from the second group simultaneously use the same time-frequency radio channel during one hop in their corresponding assigned frequency hopping sequences; and control the offset determination such that the first mobile terminal communication and the second terminal mobile communication use different a different time-frequency radio resource during another hop in their corresponding assigned frequency hopping sequence. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. Apparatus for a mobile radio terminal for use in a radio telecommunications system where each radio channel is defined by a frequency hopping sequence, comprising electronic circuitry arranged to:
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determine a basic frequency hopping sequence to be used for communication with a radio network, where each hop in the basic hopping sequence corresponds to a time-frequency radio resource; receive from the radio network radio resource information; determine, using the radio resource information, a variable offset value from the basic frequency hopping sequence; and determine a working frequency hopping sequence using the variable offset value and the basic frequency hopping sequence, where for one hop in the working frequency hopping sequence, the mobile radio terminal simultaneously uses the same time-frequency radio resource as another mobile radio terminal and for another hop in the working frequency hopping sequence, the mobile radio terminal simultaneously uses the same time-frequency radio resource as a different mobile radio terminal. - View Dependent Claims (22, 23)
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Specification